1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 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 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) && 736 !(phba->lmt & LMT_64Gb))) { 737 /* Reset link speed to auto */ 738 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 739 "1302 Invalid speed for this board:%d " 740 "Reset link speed to auto.\n", 741 phba->cfg_link_speed); 742 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 743 } 744 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 745 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 746 if (phba->sli_rev < LPFC_SLI_REV4) 747 lpfc_set_loopback_flag(phba); 748 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 749 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 751 "0498 Adapter failed to init, mbxCmd x%x " 752 "INIT_LINK, mbxStatus x%x\n", 753 mb->mbxCommand, mb->mbxStatus); 754 if (phba->sli_rev <= LPFC_SLI_REV3) { 755 /* Clear all interrupt enable conditions */ 756 writel(0, phba->HCregaddr); 757 readl(phba->HCregaddr); /* flush */ 758 /* Clear all pending interrupts */ 759 writel(0xffffffff, phba->HAregaddr); 760 readl(phba->HAregaddr); /* flush */ 761 } 762 phba->link_state = LPFC_HBA_ERROR; 763 if (rc != MBX_BUSY || flag == MBX_POLL) 764 mempool_free(pmb, phba->mbox_mem_pool); 765 return -EIO; 766 } 767 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 768 if (flag == MBX_POLL) 769 mempool_free(pmb, phba->mbox_mem_pool); 770 771 return 0; 772 } 773 774 /** 775 * lpfc_hba_down_link - this routine downs the FC link 776 * @phba: pointer to lpfc hba data structure. 777 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 778 * 779 * This routine will issue the DOWN_LINK mailbox command call. 780 * It is available to other drivers through the lpfc_hba data 781 * structure for use to stop the link. 782 * 783 * Return code 784 * 0 - success 785 * Any other value - error 786 **/ 787 static int 788 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 789 { 790 LPFC_MBOXQ_t *pmb; 791 int rc; 792 793 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 794 if (!pmb) { 795 phba->link_state = LPFC_HBA_ERROR; 796 return -ENOMEM; 797 } 798 799 lpfc_printf_log(phba, 800 KERN_ERR, LOG_INIT, 801 "0491 Adapter Link is disabled.\n"); 802 lpfc_down_link(phba, pmb); 803 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 804 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 805 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 806 lpfc_printf_log(phba, 807 KERN_ERR, LOG_INIT, 808 "2522 Adapter failed to issue DOWN_LINK" 809 " mbox command rc 0x%x\n", rc); 810 811 mempool_free(pmb, phba->mbox_mem_pool); 812 return -EIO; 813 } 814 if (flag == MBX_POLL) 815 mempool_free(pmb, phba->mbox_mem_pool); 816 817 return 0; 818 } 819 820 /** 821 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 822 * @phba: pointer to lpfc HBA data structure. 823 * 824 * This routine will do LPFC uninitialization before the HBA is reset when 825 * bringing down the SLI Layer. 826 * 827 * Return codes 828 * 0 - success. 829 * Any other value - error. 830 **/ 831 int 832 lpfc_hba_down_prep(struct lpfc_hba *phba) 833 { 834 struct lpfc_vport **vports; 835 int i; 836 837 if (phba->sli_rev <= LPFC_SLI_REV3) { 838 /* Disable interrupts */ 839 writel(0, phba->HCregaddr); 840 readl(phba->HCregaddr); /* flush */ 841 } 842 843 if (phba->pport->load_flag & FC_UNLOADING) 844 lpfc_cleanup_discovery_resources(phba->pport); 845 else { 846 vports = lpfc_create_vport_work_array(phba); 847 if (vports != NULL) 848 for (i = 0; i <= phba->max_vports && 849 vports[i] != NULL; i++) 850 lpfc_cleanup_discovery_resources(vports[i]); 851 lpfc_destroy_vport_work_array(phba, vports); 852 } 853 return 0; 854 } 855 856 /** 857 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 858 * rspiocb which got deferred 859 * 860 * @phba: pointer to lpfc HBA data structure. 861 * 862 * This routine will cleanup completed slow path events after HBA is reset 863 * when bringing down the SLI Layer. 864 * 865 * 866 * Return codes 867 * void. 868 **/ 869 static void 870 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 871 { 872 struct lpfc_iocbq *rspiocbq; 873 struct hbq_dmabuf *dmabuf; 874 struct lpfc_cq_event *cq_event; 875 876 spin_lock_irq(&phba->hbalock); 877 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 878 spin_unlock_irq(&phba->hbalock); 879 880 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 881 /* Get the response iocb from the head of work queue */ 882 spin_lock_irq(&phba->hbalock); 883 list_remove_head(&phba->sli4_hba.sp_queue_event, 884 cq_event, struct lpfc_cq_event, list); 885 spin_unlock_irq(&phba->hbalock); 886 887 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 888 case CQE_CODE_COMPL_WQE: 889 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 890 cq_event); 891 lpfc_sli_release_iocbq(phba, rspiocbq); 892 break; 893 case CQE_CODE_RECEIVE: 894 case CQE_CODE_RECEIVE_V1: 895 dmabuf = container_of(cq_event, struct hbq_dmabuf, 896 cq_event); 897 lpfc_in_buf_free(phba, &dmabuf->dbuf); 898 } 899 } 900 } 901 902 /** 903 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 904 * @phba: pointer to lpfc HBA data structure. 905 * 906 * This routine will cleanup posted ELS buffers after the HBA is reset 907 * when bringing down the SLI Layer. 908 * 909 * 910 * Return codes 911 * void. 912 **/ 913 static void 914 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 915 { 916 struct lpfc_sli *psli = &phba->sli; 917 struct lpfc_sli_ring *pring; 918 struct lpfc_dmabuf *mp, *next_mp; 919 LIST_HEAD(buflist); 920 int count; 921 922 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 923 lpfc_sli_hbqbuf_free_all(phba); 924 else { 925 /* Cleanup preposted buffers on the ELS ring */ 926 pring = &psli->sli3_ring[LPFC_ELS_RING]; 927 spin_lock_irq(&phba->hbalock); 928 list_splice_init(&pring->postbufq, &buflist); 929 spin_unlock_irq(&phba->hbalock); 930 931 count = 0; 932 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 933 list_del(&mp->list); 934 count++; 935 lpfc_mbuf_free(phba, mp->virt, mp->phys); 936 kfree(mp); 937 } 938 939 spin_lock_irq(&phba->hbalock); 940 pring->postbufq_cnt -= count; 941 spin_unlock_irq(&phba->hbalock); 942 } 943 } 944 945 /** 946 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 947 * @phba: pointer to lpfc HBA data structure. 948 * 949 * This routine will cleanup the txcmplq after the HBA is reset when bringing 950 * down the SLI Layer. 951 * 952 * Return codes 953 * void 954 **/ 955 static void 956 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 957 { 958 struct lpfc_sli *psli = &phba->sli; 959 struct lpfc_queue *qp = NULL; 960 struct lpfc_sli_ring *pring; 961 LIST_HEAD(completions); 962 int i; 963 struct lpfc_iocbq *piocb, *next_iocb; 964 965 if (phba->sli_rev != LPFC_SLI_REV4) { 966 for (i = 0; i < psli->num_rings; i++) { 967 pring = &psli->sli3_ring[i]; 968 spin_lock_irq(&phba->hbalock); 969 /* At this point in time the HBA is either reset or DOA 970 * Nothing should be on txcmplq as it will 971 * NEVER complete. 972 */ 973 list_splice_init(&pring->txcmplq, &completions); 974 pring->txcmplq_cnt = 0; 975 spin_unlock_irq(&phba->hbalock); 976 977 lpfc_sli_abort_iocb_ring(phba, pring); 978 } 979 /* Cancel all the IOCBs from the completions list */ 980 lpfc_sli_cancel_iocbs(phba, &completions, 981 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 982 return; 983 } 984 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 985 pring = qp->pring; 986 if (!pring) 987 continue; 988 spin_lock_irq(&pring->ring_lock); 989 list_for_each_entry_safe(piocb, next_iocb, 990 &pring->txcmplq, list) 991 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; 992 list_splice_init(&pring->txcmplq, &completions); 993 pring->txcmplq_cnt = 0; 994 spin_unlock_irq(&pring->ring_lock); 995 lpfc_sli_abort_iocb_ring(phba, pring); 996 } 997 /* Cancel all the IOCBs from the completions list */ 998 lpfc_sli_cancel_iocbs(phba, &completions, 999 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 1000 } 1001 1002 /** 1003 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 1004 int i; 1005 * @phba: pointer to lpfc HBA data structure. 1006 * 1007 * This routine will do uninitialization after the HBA is reset when bring 1008 * down the SLI Layer. 1009 * 1010 * Return codes 1011 * 0 - success. 1012 * Any other value - error. 1013 **/ 1014 static int 1015 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1016 { 1017 lpfc_hba_free_post_buf(phba); 1018 lpfc_hba_clean_txcmplq(phba); 1019 return 0; 1020 } 1021 1022 /** 1023 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1024 * @phba: pointer to lpfc HBA data structure. 1025 * 1026 * This routine will do uninitialization after the HBA is reset when bring 1027 * down the SLI Layer. 1028 * 1029 * Return codes 1030 * 0 - success. 1031 * Any other value - error. 1032 **/ 1033 static int 1034 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1035 { 1036 struct lpfc_scsi_buf *psb, *psb_next; 1037 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1038 LIST_HEAD(aborts); 1039 LIST_HEAD(nvme_aborts); 1040 LIST_HEAD(nvmet_aborts); 1041 unsigned long iflag = 0; 1042 struct lpfc_sglq *sglq_entry = NULL; 1043 int cnt; 1044 1045 1046 lpfc_sli_hbqbuf_free_all(phba); 1047 lpfc_hba_clean_txcmplq(phba); 1048 1049 /* At this point in time the HBA is either reset or DOA. Either 1050 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1051 * on the lpfc_els_sgl_list so that it can either be freed if the 1052 * driver is unloading or reposted if the driver is restarting 1053 * the port. 1054 */ 1055 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1056 /* scsl_buf_list */ 1057 /* sgl_list_lock required because worker thread uses this 1058 * list. 1059 */ 1060 spin_lock(&phba->sli4_hba.sgl_list_lock); 1061 list_for_each_entry(sglq_entry, 1062 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1063 sglq_entry->state = SGL_FREED; 1064 1065 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1066 &phba->sli4_hba.lpfc_els_sgl_list); 1067 1068 1069 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1070 /* abts_scsi_buf_list_lock required because worker thread uses this 1071 * list. 1072 */ 1073 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1074 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1075 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1076 &aborts); 1077 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1078 } 1079 1080 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1081 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1082 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1083 &nvme_aborts); 1084 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1085 &nvmet_aborts); 1086 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1087 } 1088 1089 spin_unlock_irq(&phba->hbalock); 1090 1091 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1092 psb->pCmd = NULL; 1093 psb->status = IOSTAT_SUCCESS; 1094 } 1095 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1096 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1097 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1098 1099 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1100 cnt = 0; 1101 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1102 psb->pCmd = NULL; 1103 psb->status = IOSTAT_SUCCESS; 1104 cnt++; 1105 } 1106 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1107 phba->put_nvme_bufs += cnt; 1108 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1109 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1110 1111 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1112 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1113 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 1114 } 1115 } 1116 1117 lpfc_sli4_free_sp_events(phba); 1118 return 0; 1119 } 1120 1121 /** 1122 * lpfc_hba_down_post - Wrapper func for hba down post routine 1123 * @phba: pointer to lpfc HBA data structure. 1124 * 1125 * This routine wraps the actual SLI3 or SLI4 routine for performing 1126 * uninitialization after the HBA is reset when bring down the SLI Layer. 1127 * 1128 * Return codes 1129 * 0 - success. 1130 * Any other value - error. 1131 **/ 1132 int 1133 lpfc_hba_down_post(struct lpfc_hba *phba) 1134 { 1135 return (*phba->lpfc_hba_down_post)(phba); 1136 } 1137 1138 /** 1139 * lpfc_hb_timeout - The HBA-timer timeout handler 1140 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1141 * 1142 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1143 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1144 * work-port-events bitmap and the worker thread is notified. This timeout 1145 * event will be used by the worker thread to invoke the actual timeout 1146 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1147 * be performed in the timeout handler and the HBA timeout event bit shall 1148 * be cleared by the worker thread after it has taken the event bitmap out. 1149 **/ 1150 static void 1151 lpfc_hb_timeout(struct timer_list *t) 1152 { 1153 struct lpfc_hba *phba; 1154 uint32_t tmo_posted; 1155 unsigned long iflag; 1156 1157 phba = from_timer(phba, t, hb_tmofunc); 1158 1159 /* Check for heart beat timeout conditions */ 1160 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1161 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1162 if (!tmo_posted) 1163 phba->pport->work_port_events |= WORKER_HB_TMO; 1164 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1165 1166 /* Tell the worker thread there is work to do */ 1167 if (!tmo_posted) 1168 lpfc_worker_wake_up(phba); 1169 return; 1170 } 1171 1172 /** 1173 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1174 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1175 * 1176 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1177 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1178 * work-port-events bitmap and the worker thread is notified. This timeout 1179 * event will be used by the worker thread to invoke the actual timeout 1180 * handler routine, lpfc_rrq_handler. Any periodical operations will 1181 * be performed in the timeout handler and the RRQ timeout event bit shall 1182 * be cleared by the worker thread after it has taken the event bitmap out. 1183 **/ 1184 static void 1185 lpfc_rrq_timeout(struct timer_list *t) 1186 { 1187 struct lpfc_hba *phba; 1188 unsigned long iflag; 1189 1190 phba = from_timer(phba, t, rrq_tmr); 1191 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1192 if (!(phba->pport->load_flag & FC_UNLOADING)) 1193 phba->hba_flag |= HBA_RRQ_ACTIVE; 1194 else 1195 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1196 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1197 1198 if (!(phba->pport->load_flag & FC_UNLOADING)) 1199 lpfc_worker_wake_up(phba); 1200 } 1201 1202 /** 1203 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1204 * @phba: pointer to lpfc hba data structure. 1205 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1206 * 1207 * This is the callback function to the lpfc heart-beat mailbox command. 1208 * If configured, the lpfc driver issues the heart-beat mailbox command to 1209 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1210 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1211 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1212 * heart-beat outstanding state. Once the mailbox command comes back and 1213 * no error conditions detected, the heart-beat mailbox command timer is 1214 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1215 * state is cleared for the next heart-beat. If the timer expired with the 1216 * heart-beat outstanding state set, the driver will put the HBA offline. 1217 **/ 1218 static void 1219 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1220 { 1221 unsigned long drvr_flag; 1222 1223 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1224 phba->hb_outstanding = 0; 1225 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1226 1227 /* Check and reset heart-beat timer is necessary */ 1228 mempool_free(pmboxq, phba->mbox_mem_pool); 1229 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1230 !(phba->link_state == LPFC_HBA_ERROR) && 1231 !(phba->pport->load_flag & FC_UNLOADING)) 1232 mod_timer(&phba->hb_tmofunc, 1233 jiffies + 1234 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1235 return; 1236 } 1237 1238 /** 1239 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1240 * @phba: pointer to lpfc hba data structure. 1241 * 1242 * This is the actual HBA-timer timeout handler to be invoked by the worker 1243 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1244 * handler performs any periodic operations needed for the device. If such 1245 * periodic event has already been attended to either in the interrupt handler 1246 * or by processing slow-ring or fast-ring events within the HBA-timer 1247 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1248 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1249 * is configured and there is no heart-beat mailbox command outstanding, a 1250 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1251 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1252 * to offline. 1253 **/ 1254 void 1255 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1256 { 1257 struct lpfc_vport **vports; 1258 LPFC_MBOXQ_t *pmboxq; 1259 struct lpfc_dmabuf *buf_ptr; 1260 int retval, i; 1261 struct lpfc_sli *psli = &phba->sli; 1262 LIST_HEAD(completions); 1263 struct lpfc_queue *qp; 1264 unsigned long time_elapsed; 1265 uint32_t tick_cqe, max_cqe, val; 1266 uint64_t tot, data1, data2, data3; 1267 struct lpfc_nvmet_tgtport *tgtp; 1268 struct lpfc_register reg_data; 1269 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; 1270 1271 vports = lpfc_create_vport_work_array(phba); 1272 if (vports != NULL) 1273 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1274 lpfc_rcv_seq_check_edtov(vports[i]); 1275 lpfc_fdmi_num_disc_check(vports[i]); 1276 } 1277 lpfc_destroy_vport_work_array(phba, vports); 1278 1279 if ((phba->link_state == LPFC_HBA_ERROR) || 1280 (phba->pport->load_flag & FC_UNLOADING) || 1281 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1282 return; 1283 1284 if (phba->cfg_auto_imax) { 1285 if (!phba->last_eqdelay_time) { 1286 phba->last_eqdelay_time = jiffies; 1287 goto skip_eqdelay; 1288 } 1289 time_elapsed = jiffies - phba->last_eqdelay_time; 1290 phba->last_eqdelay_time = jiffies; 1291 1292 tot = 0xffff; 1293 /* Check outstanding IO count */ 1294 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1295 if (phba->nvmet_support) { 1296 tgtp = phba->targetport->private; 1297 /* Calculate outstanding IOs */ 1298 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1299 tot += atomic_read(&tgtp->xmt_fcp_release); 1300 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1301 } else { 1302 tot = atomic_read(&phba->fc4NvmeIoCmpls); 1303 data1 = atomic_read( 1304 &phba->fc4NvmeInputRequests); 1305 data2 = atomic_read( 1306 &phba->fc4NvmeOutputRequests); 1307 data3 = atomic_read( 1308 &phba->fc4NvmeControlRequests); 1309 tot = (data1 + data2 + data3) - tot; 1310 } 1311 } 1312 1313 /* Interrupts per sec per EQ */ 1314 val = phba->cfg_fcp_imax / phba->io_channel_irqs; 1315 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */ 1316 1317 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */ 1318 max_cqe = time_elapsed * tick_cqe; 1319 1320 for (i = 0; i < phba->io_channel_irqs; i++) { 1321 /* Fast-path EQ */ 1322 qp = phba->sli4_hba.hba_eq[i]; 1323 if (!qp) 1324 continue; 1325 1326 /* Use no EQ delay if we don't have many outstanding 1327 * IOs, or if we are only processing 1 CQE/ISR or less. 1328 * Otherwise, assume we can process up to lpfc_fcp_imax 1329 * interrupts per HBA. 1330 */ 1331 if (tot < LPFC_NODELAY_MAX_IO || 1332 qp->EQ_cqe_cnt <= max_cqe) 1333 val = 0; 1334 else 1335 val = phba->cfg_fcp_imax; 1336 1337 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) { 1338 /* Use EQ Delay Register method */ 1339 1340 /* Convert for EQ Delay register */ 1341 if (val) { 1342 /* First, interrupts per sec per EQ */ 1343 val = phba->cfg_fcp_imax / 1344 phba->io_channel_irqs; 1345 1346 /* us delay between each interrupt */ 1347 val = LPFC_SEC_TO_USEC / val; 1348 } 1349 if (val != qp->q_mode) { 1350 reg_data.word0 = 0; 1351 bf_set(lpfc_sliport_eqdelay_id, 1352 ®_data, qp->queue_id); 1353 bf_set(lpfc_sliport_eqdelay_delay, 1354 ®_data, val); 1355 writel(reg_data.word0, eqdreg); 1356 } 1357 } else { 1358 /* Use mbox command method */ 1359 if (val != qp->q_mode) 1360 lpfc_modify_hba_eq_delay(phba, i, 1361 1, val); 1362 } 1363 1364 /* 1365 * val is cfg_fcp_imax or 0 for mbox delay or us delay 1366 * between interrupts for EQDR. 1367 */ 1368 qp->q_mode = val; 1369 qp->EQ_cqe_cnt = 0; 1370 } 1371 } 1372 1373 skip_eqdelay: 1374 spin_lock_irq(&phba->pport->work_port_lock); 1375 1376 if (time_after(phba->last_completion_time + 1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1378 jiffies)) { 1379 spin_unlock_irq(&phba->pport->work_port_lock); 1380 if (!phba->hb_outstanding) 1381 mod_timer(&phba->hb_tmofunc, 1382 jiffies + 1383 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1384 else 1385 mod_timer(&phba->hb_tmofunc, 1386 jiffies + 1387 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1388 return; 1389 } 1390 spin_unlock_irq(&phba->pport->work_port_lock); 1391 1392 if (phba->elsbuf_cnt && 1393 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1394 spin_lock_irq(&phba->hbalock); 1395 list_splice_init(&phba->elsbuf, &completions); 1396 phba->elsbuf_cnt = 0; 1397 phba->elsbuf_prev_cnt = 0; 1398 spin_unlock_irq(&phba->hbalock); 1399 1400 while (!list_empty(&completions)) { 1401 list_remove_head(&completions, buf_ptr, 1402 struct lpfc_dmabuf, list); 1403 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1404 kfree(buf_ptr); 1405 } 1406 } 1407 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1408 1409 /* If there is no heart beat outstanding, issue a heartbeat command */ 1410 if (phba->cfg_enable_hba_heartbeat) { 1411 if (!phba->hb_outstanding) { 1412 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1413 (list_empty(&psli->mboxq))) { 1414 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1415 GFP_KERNEL); 1416 if (!pmboxq) { 1417 mod_timer(&phba->hb_tmofunc, 1418 jiffies + 1419 msecs_to_jiffies(1000 * 1420 LPFC_HB_MBOX_INTERVAL)); 1421 return; 1422 } 1423 1424 lpfc_heart_beat(phba, pmboxq); 1425 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1426 pmboxq->vport = phba->pport; 1427 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1428 MBX_NOWAIT); 1429 1430 if (retval != MBX_BUSY && 1431 retval != MBX_SUCCESS) { 1432 mempool_free(pmboxq, 1433 phba->mbox_mem_pool); 1434 mod_timer(&phba->hb_tmofunc, 1435 jiffies + 1436 msecs_to_jiffies(1000 * 1437 LPFC_HB_MBOX_INTERVAL)); 1438 return; 1439 } 1440 phba->skipped_hb = 0; 1441 phba->hb_outstanding = 1; 1442 } else if (time_before_eq(phba->last_completion_time, 1443 phba->skipped_hb)) { 1444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1445 "2857 Last completion time not " 1446 " updated in %d ms\n", 1447 jiffies_to_msecs(jiffies 1448 - phba->last_completion_time)); 1449 } else 1450 phba->skipped_hb = jiffies; 1451 1452 mod_timer(&phba->hb_tmofunc, 1453 jiffies + 1454 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1455 return; 1456 } else { 1457 /* 1458 * If heart beat timeout called with hb_outstanding set 1459 * we need to give the hb mailbox cmd a chance to 1460 * complete or TMO. 1461 */ 1462 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1463 "0459 Adapter heartbeat still out" 1464 "standing:last compl time was %d ms.\n", 1465 jiffies_to_msecs(jiffies 1466 - phba->last_completion_time)); 1467 mod_timer(&phba->hb_tmofunc, 1468 jiffies + 1469 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1470 } 1471 } else { 1472 mod_timer(&phba->hb_tmofunc, 1473 jiffies + 1474 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1475 } 1476 } 1477 1478 /** 1479 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1480 * @phba: pointer to lpfc hba data structure. 1481 * 1482 * This routine is called to bring the HBA offline when HBA hardware error 1483 * other than Port Error 6 has been detected. 1484 **/ 1485 static void 1486 lpfc_offline_eratt(struct lpfc_hba *phba) 1487 { 1488 struct lpfc_sli *psli = &phba->sli; 1489 1490 spin_lock_irq(&phba->hbalock); 1491 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1492 spin_unlock_irq(&phba->hbalock); 1493 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1494 1495 lpfc_offline(phba); 1496 lpfc_reset_barrier(phba); 1497 spin_lock_irq(&phba->hbalock); 1498 lpfc_sli_brdreset(phba); 1499 spin_unlock_irq(&phba->hbalock); 1500 lpfc_hba_down_post(phba); 1501 lpfc_sli_brdready(phba, HS_MBRDY); 1502 lpfc_unblock_mgmt_io(phba); 1503 phba->link_state = LPFC_HBA_ERROR; 1504 return; 1505 } 1506 1507 /** 1508 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1509 * @phba: pointer to lpfc hba data structure. 1510 * 1511 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1512 * other than Port Error 6 has been detected. 1513 **/ 1514 void 1515 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1516 { 1517 spin_lock_irq(&phba->hbalock); 1518 phba->link_state = LPFC_HBA_ERROR; 1519 spin_unlock_irq(&phba->hbalock); 1520 1521 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1522 lpfc_offline(phba); 1523 lpfc_hba_down_post(phba); 1524 lpfc_unblock_mgmt_io(phba); 1525 } 1526 1527 /** 1528 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1529 * @phba: pointer to lpfc hba data structure. 1530 * 1531 * This routine is invoked to handle the deferred HBA hardware error 1532 * conditions. This type of error is indicated by HBA by setting ER1 1533 * and another ER bit in the host status register. The driver will 1534 * wait until the ER1 bit clears before handling the error condition. 1535 **/ 1536 static void 1537 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1538 { 1539 uint32_t old_host_status = phba->work_hs; 1540 struct lpfc_sli *psli = &phba->sli; 1541 1542 /* If the pci channel is offline, ignore possible errors, 1543 * since we cannot communicate with the pci card anyway. 1544 */ 1545 if (pci_channel_offline(phba->pcidev)) { 1546 spin_lock_irq(&phba->hbalock); 1547 phba->hba_flag &= ~DEFER_ERATT; 1548 spin_unlock_irq(&phba->hbalock); 1549 return; 1550 } 1551 1552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1553 "0479 Deferred Adapter Hardware Error " 1554 "Data: x%x x%x x%x\n", 1555 phba->work_hs, 1556 phba->work_status[0], phba->work_status[1]); 1557 1558 spin_lock_irq(&phba->hbalock); 1559 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1560 spin_unlock_irq(&phba->hbalock); 1561 1562 1563 /* 1564 * Firmware stops when it triggred erratt. That could cause the I/Os 1565 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1566 * SCSI layer retry it after re-establishing link. 1567 */ 1568 lpfc_sli_abort_fcp_rings(phba); 1569 1570 /* 1571 * There was a firmware error. Take the hba offline and then 1572 * attempt to restart it. 1573 */ 1574 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1575 lpfc_offline(phba); 1576 1577 /* Wait for the ER1 bit to clear.*/ 1578 while (phba->work_hs & HS_FFER1) { 1579 msleep(100); 1580 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1581 phba->work_hs = UNPLUG_ERR ; 1582 break; 1583 } 1584 /* If driver is unloading let the worker thread continue */ 1585 if (phba->pport->load_flag & FC_UNLOADING) { 1586 phba->work_hs = 0; 1587 break; 1588 } 1589 } 1590 1591 /* 1592 * This is to ptrotect against a race condition in which 1593 * first write to the host attention register clear the 1594 * host status register. 1595 */ 1596 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1597 phba->work_hs = old_host_status & ~HS_FFER1; 1598 1599 spin_lock_irq(&phba->hbalock); 1600 phba->hba_flag &= ~DEFER_ERATT; 1601 spin_unlock_irq(&phba->hbalock); 1602 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1603 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1604 } 1605 1606 static void 1607 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1608 { 1609 struct lpfc_board_event_header board_event; 1610 struct Scsi_Host *shost; 1611 1612 board_event.event_type = FC_REG_BOARD_EVENT; 1613 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1614 shost = lpfc_shost_from_vport(phba->pport); 1615 fc_host_post_vendor_event(shost, fc_get_event_number(), 1616 sizeof(board_event), 1617 (char *) &board_event, 1618 LPFC_NL_VENDOR_ID); 1619 } 1620 1621 /** 1622 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1623 * @phba: pointer to lpfc hba data structure. 1624 * 1625 * This routine is invoked to handle the following HBA hardware error 1626 * conditions: 1627 * 1 - HBA error attention interrupt 1628 * 2 - DMA ring index out of range 1629 * 3 - Mailbox command came back as unknown 1630 **/ 1631 static void 1632 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1633 { 1634 struct lpfc_vport *vport = phba->pport; 1635 struct lpfc_sli *psli = &phba->sli; 1636 uint32_t event_data; 1637 unsigned long temperature; 1638 struct temp_event temp_event_data; 1639 struct Scsi_Host *shost; 1640 1641 /* If the pci channel is offline, ignore possible errors, 1642 * since we cannot communicate with the pci card anyway. 1643 */ 1644 if (pci_channel_offline(phba->pcidev)) { 1645 spin_lock_irq(&phba->hbalock); 1646 phba->hba_flag &= ~DEFER_ERATT; 1647 spin_unlock_irq(&phba->hbalock); 1648 return; 1649 } 1650 1651 /* If resets are disabled then leave the HBA alone and return */ 1652 if (!phba->cfg_enable_hba_reset) 1653 return; 1654 1655 /* Send an internal error event to mgmt application */ 1656 lpfc_board_errevt_to_mgmt(phba); 1657 1658 if (phba->hba_flag & DEFER_ERATT) 1659 lpfc_handle_deferred_eratt(phba); 1660 1661 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1662 if (phba->work_hs & HS_FFER6) 1663 /* Re-establishing Link */ 1664 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1665 "1301 Re-establishing Link " 1666 "Data: x%x x%x x%x\n", 1667 phba->work_hs, phba->work_status[0], 1668 phba->work_status[1]); 1669 if (phba->work_hs & HS_FFER8) 1670 /* Device Zeroization */ 1671 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1672 "2861 Host Authentication device " 1673 "zeroization Data:x%x x%x x%x\n", 1674 phba->work_hs, phba->work_status[0], 1675 phba->work_status[1]); 1676 1677 spin_lock_irq(&phba->hbalock); 1678 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1679 spin_unlock_irq(&phba->hbalock); 1680 1681 /* 1682 * Firmware stops when it triggled erratt with HS_FFER6. 1683 * That could cause the I/Os dropped by the firmware. 1684 * Error iocb (I/O) on txcmplq and let the SCSI layer 1685 * retry it after re-establishing link. 1686 */ 1687 lpfc_sli_abort_fcp_rings(phba); 1688 1689 /* 1690 * There was a firmware error. Take the hba offline and then 1691 * attempt to restart it. 1692 */ 1693 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1694 lpfc_offline(phba); 1695 lpfc_sli_brdrestart(phba); 1696 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1697 lpfc_unblock_mgmt_io(phba); 1698 return; 1699 } 1700 lpfc_unblock_mgmt_io(phba); 1701 } else if (phba->work_hs & HS_CRIT_TEMP) { 1702 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1703 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1704 temp_event_data.event_code = LPFC_CRIT_TEMP; 1705 temp_event_data.data = (uint32_t)temperature; 1706 1707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1708 "0406 Adapter maximum temperature exceeded " 1709 "(%ld), taking this port offline " 1710 "Data: x%x x%x x%x\n", 1711 temperature, phba->work_hs, 1712 phba->work_status[0], phba->work_status[1]); 1713 1714 shost = lpfc_shost_from_vport(phba->pport); 1715 fc_host_post_vendor_event(shost, fc_get_event_number(), 1716 sizeof(temp_event_data), 1717 (char *) &temp_event_data, 1718 SCSI_NL_VID_TYPE_PCI 1719 | PCI_VENDOR_ID_EMULEX); 1720 1721 spin_lock_irq(&phba->hbalock); 1722 phba->over_temp_state = HBA_OVER_TEMP; 1723 spin_unlock_irq(&phba->hbalock); 1724 lpfc_offline_eratt(phba); 1725 1726 } else { 1727 /* The if clause above forces this code path when the status 1728 * failure is a value other than FFER6. Do not call the offline 1729 * twice. This is the adapter hardware error path. 1730 */ 1731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1732 "0457 Adapter Hardware Error " 1733 "Data: x%x x%x x%x\n", 1734 phba->work_hs, 1735 phba->work_status[0], phba->work_status[1]); 1736 1737 event_data = FC_REG_DUMP_EVENT; 1738 shost = lpfc_shost_from_vport(vport); 1739 fc_host_post_vendor_event(shost, fc_get_event_number(), 1740 sizeof(event_data), (char *) &event_data, 1741 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1742 1743 lpfc_offline_eratt(phba); 1744 } 1745 return; 1746 } 1747 1748 /** 1749 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1750 * @phba: pointer to lpfc hba data structure. 1751 * @mbx_action: flag for mailbox shutdown action. 1752 * 1753 * This routine is invoked to perform an SLI4 port PCI function reset in 1754 * response to port status register polling attention. It waits for port 1755 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1756 * During this process, interrupt vectors are freed and later requested 1757 * for handling possible port resource change. 1758 **/ 1759 static int 1760 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1761 bool en_rn_msg) 1762 { 1763 int rc; 1764 uint32_t intr_mode; 1765 1766 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 1767 LPFC_SLI_INTF_IF_TYPE_2) { 1768 /* 1769 * On error status condition, driver need to wait for port 1770 * ready before performing reset. 1771 */ 1772 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1773 if (rc) 1774 return rc; 1775 } 1776 1777 /* need reset: attempt for port recovery */ 1778 if (en_rn_msg) 1779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1780 "2887 Reset Needed: Attempting Port " 1781 "Recovery...\n"); 1782 lpfc_offline_prep(phba, mbx_action); 1783 lpfc_offline(phba); 1784 /* release interrupt for possible resource change */ 1785 lpfc_sli4_disable_intr(phba); 1786 lpfc_sli_brdrestart(phba); 1787 /* request and enable interrupt */ 1788 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1789 if (intr_mode == LPFC_INTR_ERROR) { 1790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1791 "3175 Failed to enable interrupt\n"); 1792 return -EIO; 1793 } 1794 phba->intr_mode = intr_mode; 1795 rc = lpfc_online(phba); 1796 if (rc == 0) 1797 lpfc_unblock_mgmt_io(phba); 1798 1799 return rc; 1800 } 1801 1802 /** 1803 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1804 * @phba: pointer to lpfc hba data structure. 1805 * 1806 * This routine is invoked to handle the SLI4 HBA hardware error attention 1807 * conditions. 1808 **/ 1809 static void 1810 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1811 { 1812 struct lpfc_vport *vport = phba->pport; 1813 uint32_t event_data; 1814 struct Scsi_Host *shost; 1815 uint32_t if_type; 1816 struct lpfc_register portstat_reg = {0}; 1817 uint32_t reg_err1, reg_err2; 1818 uint32_t uerrlo_reg, uemasklo_reg; 1819 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1820 bool en_rn_msg = true; 1821 struct temp_event temp_event_data; 1822 struct lpfc_register portsmphr_reg; 1823 int rc, i; 1824 1825 /* If the pci channel is offline, ignore possible errors, since 1826 * we cannot communicate with the pci card anyway. 1827 */ 1828 if (pci_channel_offline(phba->pcidev)) 1829 return; 1830 1831 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1832 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1833 switch (if_type) { 1834 case LPFC_SLI_INTF_IF_TYPE_0: 1835 pci_rd_rc1 = lpfc_readl( 1836 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1837 &uerrlo_reg); 1838 pci_rd_rc2 = lpfc_readl( 1839 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1840 &uemasklo_reg); 1841 /* consider PCI bus read error as pci_channel_offline */ 1842 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1843 return; 1844 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1845 lpfc_sli4_offline_eratt(phba); 1846 return; 1847 } 1848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1849 "7623 Checking UE recoverable"); 1850 1851 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1852 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1853 &portsmphr_reg.word0)) 1854 continue; 1855 1856 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1857 &portsmphr_reg); 1858 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1859 LPFC_PORT_SEM_UE_RECOVERABLE) 1860 break; 1861 /*Sleep for 1Sec, before checking SEMAPHORE */ 1862 msleep(1000); 1863 } 1864 1865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1866 "4827 smphr_port_status x%x : Waited %dSec", 1867 smphr_port_status, i); 1868 1869 /* Recoverable UE, reset the HBA device */ 1870 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1871 LPFC_PORT_SEM_UE_RECOVERABLE) { 1872 for (i = 0; i < 20; i++) { 1873 msleep(1000); 1874 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1875 &portsmphr_reg.word0) && 1876 (LPFC_POST_STAGE_PORT_READY == 1877 bf_get(lpfc_port_smphr_port_status, 1878 &portsmphr_reg))) { 1879 rc = lpfc_sli4_port_sta_fn_reset(phba, 1880 LPFC_MBX_NO_WAIT, en_rn_msg); 1881 if (rc == 0) 1882 return; 1883 lpfc_printf_log(phba, 1884 KERN_ERR, LOG_INIT, 1885 "4215 Failed to recover UE"); 1886 break; 1887 } 1888 } 1889 } 1890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1891 "7624 Firmware not ready: Failing UE recovery," 1892 " waited %dSec", i); 1893 lpfc_sli4_offline_eratt(phba); 1894 break; 1895 1896 case LPFC_SLI_INTF_IF_TYPE_2: 1897 case LPFC_SLI_INTF_IF_TYPE_6: 1898 pci_rd_rc1 = lpfc_readl( 1899 phba->sli4_hba.u.if_type2.STATUSregaddr, 1900 &portstat_reg.word0); 1901 /* consider PCI bus read error as pci_channel_offline */ 1902 if (pci_rd_rc1 == -EIO) { 1903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1904 "3151 PCI bus read access failure: x%x\n", 1905 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1906 return; 1907 } 1908 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1909 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1910 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1912 "2889 Port Overtemperature event, " 1913 "taking port offline Data: x%x x%x\n", 1914 reg_err1, reg_err2); 1915 1916 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1917 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1918 temp_event_data.event_code = LPFC_CRIT_TEMP; 1919 temp_event_data.data = 0xFFFFFFFF; 1920 1921 shost = lpfc_shost_from_vport(phba->pport); 1922 fc_host_post_vendor_event(shost, fc_get_event_number(), 1923 sizeof(temp_event_data), 1924 (char *)&temp_event_data, 1925 SCSI_NL_VID_TYPE_PCI 1926 | PCI_VENDOR_ID_EMULEX); 1927 1928 spin_lock_irq(&phba->hbalock); 1929 phba->over_temp_state = HBA_OVER_TEMP; 1930 spin_unlock_irq(&phba->hbalock); 1931 lpfc_sli4_offline_eratt(phba); 1932 return; 1933 } 1934 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1935 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1937 "3143 Port Down: Firmware Update " 1938 "Detected\n"); 1939 en_rn_msg = false; 1940 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1941 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1943 "3144 Port Down: Debug Dump\n"); 1944 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1945 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1947 "3145 Port Down: Provisioning\n"); 1948 1949 /* If resets are disabled then leave the HBA alone and return */ 1950 if (!phba->cfg_enable_hba_reset) 1951 return; 1952 1953 /* Check port status register for function reset */ 1954 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1955 en_rn_msg); 1956 if (rc == 0) { 1957 /* don't report event on forced debug dump */ 1958 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1959 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1960 return; 1961 else 1962 break; 1963 } 1964 /* fall through for not able to recover */ 1965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1966 "3152 Unrecoverable error, bring the port " 1967 "offline\n"); 1968 lpfc_sli4_offline_eratt(phba); 1969 break; 1970 case LPFC_SLI_INTF_IF_TYPE_1: 1971 default: 1972 break; 1973 } 1974 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1975 "3123 Report dump event to upper layer\n"); 1976 /* Send an internal error event to mgmt application */ 1977 lpfc_board_errevt_to_mgmt(phba); 1978 1979 event_data = FC_REG_DUMP_EVENT; 1980 shost = lpfc_shost_from_vport(vport); 1981 fc_host_post_vendor_event(shost, fc_get_event_number(), 1982 sizeof(event_data), (char *) &event_data, 1983 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1984 } 1985 1986 /** 1987 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1988 * @phba: pointer to lpfc HBA data structure. 1989 * 1990 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1991 * routine from the API jump table function pointer from the lpfc_hba struct. 1992 * 1993 * Return codes 1994 * 0 - success. 1995 * Any other value - error. 1996 **/ 1997 void 1998 lpfc_handle_eratt(struct lpfc_hba *phba) 1999 { 2000 (*phba->lpfc_handle_eratt)(phba); 2001 } 2002 2003 /** 2004 * lpfc_handle_latt - The HBA link event handler 2005 * @phba: pointer to lpfc hba data structure. 2006 * 2007 * This routine is invoked from the worker thread to handle a HBA host 2008 * attention link event. SLI3 only. 2009 **/ 2010 void 2011 lpfc_handle_latt(struct lpfc_hba *phba) 2012 { 2013 struct lpfc_vport *vport = phba->pport; 2014 struct lpfc_sli *psli = &phba->sli; 2015 LPFC_MBOXQ_t *pmb; 2016 volatile uint32_t control; 2017 struct lpfc_dmabuf *mp; 2018 int rc = 0; 2019 2020 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2021 if (!pmb) { 2022 rc = 1; 2023 goto lpfc_handle_latt_err_exit; 2024 } 2025 2026 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2027 if (!mp) { 2028 rc = 2; 2029 goto lpfc_handle_latt_free_pmb; 2030 } 2031 2032 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2033 if (!mp->virt) { 2034 rc = 3; 2035 goto lpfc_handle_latt_free_mp; 2036 } 2037 2038 /* Cleanup any outstanding ELS commands */ 2039 lpfc_els_flush_all_cmd(phba); 2040 2041 psli->slistat.link_event++; 2042 lpfc_read_topology(phba, pmb, mp); 2043 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 2044 pmb->vport = vport; 2045 /* Block ELS IOCBs until we have processed this mbox command */ 2046 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2047 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 2048 if (rc == MBX_NOT_FINISHED) { 2049 rc = 4; 2050 goto lpfc_handle_latt_free_mbuf; 2051 } 2052 2053 /* Clear Link Attention in HA REG */ 2054 spin_lock_irq(&phba->hbalock); 2055 writel(HA_LATT, phba->HAregaddr); 2056 readl(phba->HAregaddr); /* flush */ 2057 spin_unlock_irq(&phba->hbalock); 2058 2059 return; 2060 2061 lpfc_handle_latt_free_mbuf: 2062 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2063 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2064 lpfc_handle_latt_free_mp: 2065 kfree(mp); 2066 lpfc_handle_latt_free_pmb: 2067 mempool_free(pmb, phba->mbox_mem_pool); 2068 lpfc_handle_latt_err_exit: 2069 /* Enable Link attention interrupts */ 2070 spin_lock_irq(&phba->hbalock); 2071 psli->sli_flag |= LPFC_PROCESS_LA; 2072 control = readl(phba->HCregaddr); 2073 control |= HC_LAINT_ENA; 2074 writel(control, phba->HCregaddr); 2075 readl(phba->HCregaddr); /* flush */ 2076 2077 /* Clear Link Attention in HA REG */ 2078 writel(HA_LATT, phba->HAregaddr); 2079 readl(phba->HAregaddr); /* flush */ 2080 spin_unlock_irq(&phba->hbalock); 2081 lpfc_linkdown(phba); 2082 phba->link_state = LPFC_HBA_ERROR; 2083 2084 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2085 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 2086 2087 return; 2088 } 2089 2090 /** 2091 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 2092 * @phba: pointer to lpfc hba data structure. 2093 * @vpd: pointer to the vital product data. 2094 * @len: length of the vital product data in bytes. 2095 * 2096 * This routine parses the Vital Product Data (VPD). The VPD is treated as 2097 * an array of characters. In this routine, the ModelName, ProgramType, and 2098 * ModelDesc, etc. fields of the phba data structure will be populated. 2099 * 2100 * Return codes 2101 * 0 - pointer to the VPD passed in is NULL 2102 * 1 - success 2103 **/ 2104 int 2105 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 2106 { 2107 uint8_t lenlo, lenhi; 2108 int Length; 2109 int i, j; 2110 int finished = 0; 2111 int index = 0; 2112 2113 if (!vpd) 2114 return 0; 2115 2116 /* Vital Product */ 2117 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2118 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2119 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2120 (uint32_t) vpd[3]); 2121 while (!finished && (index < (len - 4))) { 2122 switch (vpd[index]) { 2123 case 0x82: 2124 case 0x91: 2125 index += 1; 2126 lenlo = vpd[index]; 2127 index += 1; 2128 lenhi = vpd[index]; 2129 index += 1; 2130 i = ((((unsigned short)lenhi) << 8) + lenlo); 2131 index += i; 2132 break; 2133 case 0x90: 2134 index += 1; 2135 lenlo = vpd[index]; 2136 index += 1; 2137 lenhi = vpd[index]; 2138 index += 1; 2139 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2140 if (Length > len - index) 2141 Length = len - index; 2142 while (Length > 0) { 2143 /* Look for Serial Number */ 2144 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2145 index += 2; 2146 i = vpd[index]; 2147 index += 1; 2148 j = 0; 2149 Length -= (3+i); 2150 while(i--) { 2151 phba->SerialNumber[j++] = vpd[index++]; 2152 if (j == 31) 2153 break; 2154 } 2155 phba->SerialNumber[j] = 0; 2156 continue; 2157 } 2158 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2159 phba->vpd_flag |= VPD_MODEL_DESC; 2160 index += 2; 2161 i = vpd[index]; 2162 index += 1; 2163 j = 0; 2164 Length -= (3+i); 2165 while(i--) { 2166 phba->ModelDesc[j++] = vpd[index++]; 2167 if (j == 255) 2168 break; 2169 } 2170 phba->ModelDesc[j] = 0; 2171 continue; 2172 } 2173 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2174 phba->vpd_flag |= VPD_MODEL_NAME; 2175 index += 2; 2176 i = vpd[index]; 2177 index += 1; 2178 j = 0; 2179 Length -= (3+i); 2180 while(i--) { 2181 phba->ModelName[j++] = vpd[index++]; 2182 if (j == 79) 2183 break; 2184 } 2185 phba->ModelName[j] = 0; 2186 continue; 2187 } 2188 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2189 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2190 index += 2; 2191 i = vpd[index]; 2192 index += 1; 2193 j = 0; 2194 Length -= (3+i); 2195 while(i--) { 2196 phba->ProgramType[j++] = vpd[index++]; 2197 if (j == 255) 2198 break; 2199 } 2200 phba->ProgramType[j] = 0; 2201 continue; 2202 } 2203 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2204 phba->vpd_flag |= VPD_PORT; 2205 index += 2; 2206 i = vpd[index]; 2207 index += 1; 2208 j = 0; 2209 Length -= (3+i); 2210 while(i--) { 2211 if ((phba->sli_rev == LPFC_SLI_REV4) && 2212 (phba->sli4_hba.pport_name_sta == 2213 LPFC_SLI4_PPNAME_GET)) { 2214 j++; 2215 index++; 2216 } else 2217 phba->Port[j++] = vpd[index++]; 2218 if (j == 19) 2219 break; 2220 } 2221 if ((phba->sli_rev != LPFC_SLI_REV4) || 2222 (phba->sli4_hba.pport_name_sta == 2223 LPFC_SLI4_PPNAME_NON)) 2224 phba->Port[j] = 0; 2225 continue; 2226 } 2227 else { 2228 index += 2; 2229 i = vpd[index]; 2230 index += 1; 2231 index += i; 2232 Length -= (3 + i); 2233 } 2234 } 2235 finished = 0; 2236 break; 2237 case 0x78: 2238 finished = 1; 2239 break; 2240 default: 2241 index ++; 2242 break; 2243 } 2244 } 2245 2246 return(1); 2247 } 2248 2249 /** 2250 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2251 * @phba: pointer to lpfc hba data structure. 2252 * @mdp: pointer to the data structure to hold the derived model name. 2253 * @descp: pointer to the data structure to hold the derived description. 2254 * 2255 * This routine retrieves HBA's description based on its registered PCI device 2256 * ID. The @descp passed into this function points to an array of 256 chars. It 2257 * shall be returned with the model name, maximum speed, and the host bus type. 2258 * The @mdp passed into this function points to an array of 80 chars. When the 2259 * function returns, the @mdp will be filled with the model name. 2260 **/ 2261 static void 2262 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2263 { 2264 lpfc_vpd_t *vp; 2265 uint16_t dev_id = phba->pcidev->device; 2266 int max_speed; 2267 int GE = 0; 2268 int oneConnect = 0; /* default is not a oneConnect */ 2269 struct { 2270 char *name; 2271 char *bus; 2272 char *function; 2273 } m = {"<Unknown>", "", ""}; 2274 2275 if (mdp && mdp[0] != '\0' 2276 && descp && descp[0] != '\0') 2277 return; 2278 2279 if (phba->lmt & LMT_64Gb) 2280 max_speed = 64; 2281 else if (phba->lmt & LMT_32Gb) 2282 max_speed = 32; 2283 else if (phba->lmt & LMT_16Gb) 2284 max_speed = 16; 2285 else if (phba->lmt & LMT_10Gb) 2286 max_speed = 10; 2287 else if (phba->lmt & LMT_8Gb) 2288 max_speed = 8; 2289 else if (phba->lmt & LMT_4Gb) 2290 max_speed = 4; 2291 else if (phba->lmt & LMT_2Gb) 2292 max_speed = 2; 2293 else if (phba->lmt & LMT_1Gb) 2294 max_speed = 1; 2295 else 2296 max_speed = 0; 2297 2298 vp = &phba->vpd; 2299 2300 switch (dev_id) { 2301 case PCI_DEVICE_ID_FIREFLY: 2302 m = (typeof(m)){"LP6000", "PCI", 2303 "Obsolete, Unsupported Fibre Channel Adapter"}; 2304 break; 2305 case PCI_DEVICE_ID_SUPERFLY: 2306 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2307 m = (typeof(m)){"LP7000", "PCI", ""}; 2308 else 2309 m = (typeof(m)){"LP7000E", "PCI", ""}; 2310 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2311 break; 2312 case PCI_DEVICE_ID_DRAGONFLY: 2313 m = (typeof(m)){"LP8000", "PCI", 2314 "Obsolete, Unsupported Fibre Channel Adapter"}; 2315 break; 2316 case PCI_DEVICE_ID_CENTAUR: 2317 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2318 m = (typeof(m)){"LP9002", "PCI", ""}; 2319 else 2320 m = (typeof(m)){"LP9000", "PCI", ""}; 2321 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2322 break; 2323 case PCI_DEVICE_ID_RFLY: 2324 m = (typeof(m)){"LP952", "PCI", 2325 "Obsolete, Unsupported Fibre Channel Adapter"}; 2326 break; 2327 case PCI_DEVICE_ID_PEGASUS: 2328 m = (typeof(m)){"LP9802", "PCI-X", 2329 "Obsolete, Unsupported Fibre Channel Adapter"}; 2330 break; 2331 case PCI_DEVICE_ID_THOR: 2332 m = (typeof(m)){"LP10000", "PCI-X", 2333 "Obsolete, Unsupported Fibre Channel Adapter"}; 2334 break; 2335 case PCI_DEVICE_ID_VIPER: 2336 m = (typeof(m)){"LPX1000", "PCI-X", 2337 "Obsolete, Unsupported Fibre Channel Adapter"}; 2338 break; 2339 case PCI_DEVICE_ID_PFLY: 2340 m = (typeof(m)){"LP982", "PCI-X", 2341 "Obsolete, Unsupported Fibre Channel Adapter"}; 2342 break; 2343 case PCI_DEVICE_ID_TFLY: 2344 m = (typeof(m)){"LP1050", "PCI-X", 2345 "Obsolete, Unsupported Fibre Channel Adapter"}; 2346 break; 2347 case PCI_DEVICE_ID_HELIOS: 2348 m = (typeof(m)){"LP11000", "PCI-X2", 2349 "Obsolete, Unsupported Fibre Channel Adapter"}; 2350 break; 2351 case PCI_DEVICE_ID_HELIOS_SCSP: 2352 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2353 "Obsolete, Unsupported Fibre Channel Adapter"}; 2354 break; 2355 case PCI_DEVICE_ID_HELIOS_DCSP: 2356 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2357 "Obsolete, Unsupported Fibre Channel Adapter"}; 2358 break; 2359 case PCI_DEVICE_ID_NEPTUNE: 2360 m = (typeof(m)){"LPe1000", "PCIe", 2361 "Obsolete, Unsupported Fibre Channel Adapter"}; 2362 break; 2363 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2364 m = (typeof(m)){"LPe1000-SP", "PCIe", 2365 "Obsolete, Unsupported Fibre Channel Adapter"}; 2366 break; 2367 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2368 m = (typeof(m)){"LPe1002-SP", "PCIe", 2369 "Obsolete, Unsupported Fibre Channel Adapter"}; 2370 break; 2371 case PCI_DEVICE_ID_BMID: 2372 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2373 break; 2374 case PCI_DEVICE_ID_BSMB: 2375 m = (typeof(m)){"LP111", "PCI-X2", 2376 "Obsolete, Unsupported Fibre Channel Adapter"}; 2377 break; 2378 case PCI_DEVICE_ID_ZEPHYR: 2379 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2380 break; 2381 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2382 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2383 break; 2384 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2385 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2386 GE = 1; 2387 break; 2388 case PCI_DEVICE_ID_ZMID: 2389 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2390 break; 2391 case PCI_DEVICE_ID_ZSMB: 2392 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2393 break; 2394 case PCI_DEVICE_ID_LP101: 2395 m = (typeof(m)){"LP101", "PCI-X", 2396 "Obsolete, Unsupported Fibre Channel Adapter"}; 2397 break; 2398 case PCI_DEVICE_ID_LP10000S: 2399 m = (typeof(m)){"LP10000-S", "PCI", 2400 "Obsolete, Unsupported Fibre Channel Adapter"}; 2401 break; 2402 case PCI_DEVICE_ID_LP11000S: 2403 m = (typeof(m)){"LP11000-S", "PCI-X2", 2404 "Obsolete, Unsupported Fibre Channel Adapter"}; 2405 break; 2406 case PCI_DEVICE_ID_LPE11000S: 2407 m = (typeof(m)){"LPe11000-S", "PCIe", 2408 "Obsolete, Unsupported Fibre Channel Adapter"}; 2409 break; 2410 case PCI_DEVICE_ID_SAT: 2411 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2412 break; 2413 case PCI_DEVICE_ID_SAT_MID: 2414 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2415 break; 2416 case PCI_DEVICE_ID_SAT_SMB: 2417 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2418 break; 2419 case PCI_DEVICE_ID_SAT_DCSP: 2420 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2421 break; 2422 case PCI_DEVICE_ID_SAT_SCSP: 2423 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2424 break; 2425 case PCI_DEVICE_ID_SAT_S: 2426 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2427 break; 2428 case PCI_DEVICE_ID_HORNET: 2429 m = (typeof(m)){"LP21000", "PCIe", 2430 "Obsolete, Unsupported FCoE Adapter"}; 2431 GE = 1; 2432 break; 2433 case PCI_DEVICE_ID_PROTEUS_VF: 2434 m = (typeof(m)){"LPev12000", "PCIe IOV", 2435 "Obsolete, Unsupported Fibre Channel Adapter"}; 2436 break; 2437 case PCI_DEVICE_ID_PROTEUS_PF: 2438 m = (typeof(m)){"LPev12000", "PCIe IOV", 2439 "Obsolete, Unsupported Fibre Channel Adapter"}; 2440 break; 2441 case PCI_DEVICE_ID_PROTEUS_S: 2442 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2443 "Obsolete, Unsupported Fibre Channel Adapter"}; 2444 break; 2445 case PCI_DEVICE_ID_TIGERSHARK: 2446 oneConnect = 1; 2447 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2448 break; 2449 case PCI_DEVICE_ID_TOMCAT: 2450 oneConnect = 1; 2451 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2452 break; 2453 case PCI_DEVICE_ID_FALCON: 2454 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2455 "EmulexSecure Fibre"}; 2456 break; 2457 case PCI_DEVICE_ID_BALIUS: 2458 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2459 "Obsolete, Unsupported Fibre Channel Adapter"}; 2460 break; 2461 case PCI_DEVICE_ID_LANCER_FC: 2462 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2463 break; 2464 case PCI_DEVICE_ID_LANCER_FC_VF: 2465 m = (typeof(m)){"LPe16000", "PCIe", 2466 "Obsolete, Unsupported Fibre Channel Adapter"}; 2467 break; 2468 case PCI_DEVICE_ID_LANCER_FCOE: 2469 oneConnect = 1; 2470 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2471 break; 2472 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2473 oneConnect = 1; 2474 m = (typeof(m)){"OCe15100", "PCIe", 2475 "Obsolete, Unsupported FCoE"}; 2476 break; 2477 case PCI_DEVICE_ID_LANCER_G6_FC: 2478 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2479 break; 2480 case PCI_DEVICE_ID_LANCER_G7_FC: 2481 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"}; 2482 break; 2483 case PCI_DEVICE_ID_SKYHAWK: 2484 case PCI_DEVICE_ID_SKYHAWK_VF: 2485 oneConnect = 1; 2486 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2487 break; 2488 default: 2489 m = (typeof(m)){"Unknown", "", ""}; 2490 break; 2491 } 2492 2493 if (mdp && mdp[0] == '\0') 2494 snprintf(mdp, 79,"%s", m.name); 2495 /* 2496 * oneConnect hba requires special processing, they are all initiators 2497 * and we put the port number on the end 2498 */ 2499 if (descp && descp[0] == '\0') { 2500 if (oneConnect) 2501 snprintf(descp, 255, 2502 "Emulex OneConnect %s, %s Initiator %s", 2503 m.name, m.function, 2504 phba->Port); 2505 else if (max_speed == 0) 2506 snprintf(descp, 255, 2507 "Emulex %s %s %s", 2508 m.name, m.bus, m.function); 2509 else 2510 snprintf(descp, 255, 2511 "Emulex %s %d%s %s %s", 2512 m.name, max_speed, (GE) ? "GE" : "Gb", 2513 m.bus, m.function); 2514 } 2515 } 2516 2517 /** 2518 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2519 * @phba: pointer to lpfc hba data structure. 2520 * @pring: pointer to a IOCB ring. 2521 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2522 * 2523 * This routine posts a given number of IOCBs with the associated DMA buffer 2524 * descriptors specified by the cnt argument to the given IOCB ring. 2525 * 2526 * Return codes 2527 * The number of IOCBs NOT able to be posted to the IOCB ring. 2528 **/ 2529 int 2530 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2531 { 2532 IOCB_t *icmd; 2533 struct lpfc_iocbq *iocb; 2534 struct lpfc_dmabuf *mp1, *mp2; 2535 2536 cnt += pring->missbufcnt; 2537 2538 /* While there are buffers to post */ 2539 while (cnt > 0) { 2540 /* Allocate buffer for command iocb */ 2541 iocb = lpfc_sli_get_iocbq(phba); 2542 if (iocb == NULL) { 2543 pring->missbufcnt = cnt; 2544 return cnt; 2545 } 2546 icmd = &iocb->iocb; 2547 2548 /* 2 buffers can be posted per command */ 2549 /* Allocate buffer to post */ 2550 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2551 if (mp1) 2552 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2553 if (!mp1 || !mp1->virt) { 2554 kfree(mp1); 2555 lpfc_sli_release_iocbq(phba, iocb); 2556 pring->missbufcnt = cnt; 2557 return cnt; 2558 } 2559 2560 INIT_LIST_HEAD(&mp1->list); 2561 /* Allocate buffer to post */ 2562 if (cnt > 1) { 2563 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2564 if (mp2) 2565 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2566 &mp2->phys); 2567 if (!mp2 || !mp2->virt) { 2568 kfree(mp2); 2569 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2570 kfree(mp1); 2571 lpfc_sli_release_iocbq(phba, iocb); 2572 pring->missbufcnt = cnt; 2573 return cnt; 2574 } 2575 2576 INIT_LIST_HEAD(&mp2->list); 2577 } else { 2578 mp2 = NULL; 2579 } 2580 2581 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2582 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2583 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2584 icmd->ulpBdeCount = 1; 2585 cnt--; 2586 if (mp2) { 2587 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2588 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2589 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2590 cnt--; 2591 icmd->ulpBdeCount = 2; 2592 } 2593 2594 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2595 icmd->ulpLe = 1; 2596 2597 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2598 IOCB_ERROR) { 2599 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2600 kfree(mp1); 2601 cnt++; 2602 if (mp2) { 2603 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2604 kfree(mp2); 2605 cnt++; 2606 } 2607 lpfc_sli_release_iocbq(phba, iocb); 2608 pring->missbufcnt = cnt; 2609 return cnt; 2610 } 2611 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2612 if (mp2) 2613 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2614 } 2615 pring->missbufcnt = 0; 2616 return 0; 2617 } 2618 2619 /** 2620 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2621 * @phba: pointer to lpfc hba data structure. 2622 * 2623 * This routine posts initial receive IOCB buffers to the ELS ring. The 2624 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2625 * set to 64 IOCBs. SLI3 only. 2626 * 2627 * Return codes 2628 * 0 - success (currently always success) 2629 **/ 2630 static int 2631 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2632 { 2633 struct lpfc_sli *psli = &phba->sli; 2634 2635 /* Ring 0, ELS / CT buffers */ 2636 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2637 /* Ring 2 - FCP no buffers needed */ 2638 2639 return 0; 2640 } 2641 2642 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2643 2644 /** 2645 * lpfc_sha_init - Set up initial array of hash table entries 2646 * @HashResultPointer: pointer to an array as hash table. 2647 * 2648 * This routine sets up the initial values to the array of hash table entries 2649 * for the LC HBAs. 2650 **/ 2651 static void 2652 lpfc_sha_init(uint32_t * HashResultPointer) 2653 { 2654 HashResultPointer[0] = 0x67452301; 2655 HashResultPointer[1] = 0xEFCDAB89; 2656 HashResultPointer[2] = 0x98BADCFE; 2657 HashResultPointer[3] = 0x10325476; 2658 HashResultPointer[4] = 0xC3D2E1F0; 2659 } 2660 2661 /** 2662 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2663 * @HashResultPointer: pointer to an initial/result hash table. 2664 * @HashWorkingPointer: pointer to an working hash table. 2665 * 2666 * This routine iterates an initial hash table pointed by @HashResultPointer 2667 * with the values from the working hash table pointeed by @HashWorkingPointer. 2668 * The results are putting back to the initial hash table, returned through 2669 * the @HashResultPointer as the result hash table. 2670 **/ 2671 static void 2672 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2673 { 2674 int t; 2675 uint32_t TEMP; 2676 uint32_t A, B, C, D, E; 2677 t = 16; 2678 do { 2679 HashWorkingPointer[t] = 2680 S(1, 2681 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2682 8] ^ 2683 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2684 } while (++t <= 79); 2685 t = 0; 2686 A = HashResultPointer[0]; 2687 B = HashResultPointer[1]; 2688 C = HashResultPointer[2]; 2689 D = HashResultPointer[3]; 2690 E = HashResultPointer[4]; 2691 2692 do { 2693 if (t < 20) { 2694 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2695 } else if (t < 40) { 2696 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2697 } else if (t < 60) { 2698 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2699 } else { 2700 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2701 } 2702 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2703 E = D; 2704 D = C; 2705 C = S(30, B); 2706 B = A; 2707 A = TEMP; 2708 } while (++t <= 79); 2709 2710 HashResultPointer[0] += A; 2711 HashResultPointer[1] += B; 2712 HashResultPointer[2] += C; 2713 HashResultPointer[3] += D; 2714 HashResultPointer[4] += E; 2715 2716 } 2717 2718 /** 2719 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2720 * @RandomChallenge: pointer to the entry of host challenge random number array. 2721 * @HashWorking: pointer to the entry of the working hash array. 2722 * 2723 * This routine calculates the working hash array referred by @HashWorking 2724 * from the challenge random numbers associated with the host, referred by 2725 * @RandomChallenge. The result is put into the entry of the working hash 2726 * array and returned by reference through @HashWorking. 2727 **/ 2728 static void 2729 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2730 { 2731 *HashWorking = (*RandomChallenge ^ *HashWorking); 2732 } 2733 2734 /** 2735 * lpfc_hba_init - Perform special handling for LC HBA initialization 2736 * @phba: pointer to lpfc hba data structure. 2737 * @hbainit: pointer to an array of unsigned 32-bit integers. 2738 * 2739 * This routine performs the special handling for LC HBA initialization. 2740 **/ 2741 void 2742 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2743 { 2744 int t; 2745 uint32_t *HashWorking; 2746 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2747 2748 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2749 if (!HashWorking) 2750 return; 2751 2752 HashWorking[0] = HashWorking[78] = *pwwnn++; 2753 HashWorking[1] = HashWorking[79] = *pwwnn; 2754 2755 for (t = 0; t < 7; t++) 2756 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2757 2758 lpfc_sha_init(hbainit); 2759 lpfc_sha_iterate(hbainit, HashWorking); 2760 kfree(HashWorking); 2761 } 2762 2763 /** 2764 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2765 * @vport: pointer to a virtual N_Port data structure. 2766 * 2767 * This routine performs the necessary cleanups before deleting the @vport. 2768 * It invokes the discovery state machine to perform necessary state 2769 * transitions and to release the ndlps associated with the @vport. Note, 2770 * the physical port is treated as @vport 0. 2771 **/ 2772 void 2773 lpfc_cleanup(struct lpfc_vport *vport) 2774 { 2775 struct lpfc_hba *phba = vport->phba; 2776 struct lpfc_nodelist *ndlp, *next_ndlp; 2777 int i = 0; 2778 2779 if (phba->link_state > LPFC_LINK_DOWN) 2780 lpfc_port_link_failure(vport); 2781 2782 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2783 if (!NLP_CHK_NODE_ACT(ndlp)) { 2784 ndlp = lpfc_enable_node(vport, ndlp, 2785 NLP_STE_UNUSED_NODE); 2786 if (!ndlp) 2787 continue; 2788 spin_lock_irq(&phba->ndlp_lock); 2789 NLP_SET_FREE_REQ(ndlp); 2790 spin_unlock_irq(&phba->ndlp_lock); 2791 /* Trigger the release of the ndlp memory */ 2792 lpfc_nlp_put(ndlp); 2793 continue; 2794 } 2795 spin_lock_irq(&phba->ndlp_lock); 2796 if (NLP_CHK_FREE_REQ(ndlp)) { 2797 /* The ndlp should not be in memory free mode already */ 2798 spin_unlock_irq(&phba->ndlp_lock); 2799 continue; 2800 } else 2801 /* Indicate request for freeing ndlp memory */ 2802 NLP_SET_FREE_REQ(ndlp); 2803 spin_unlock_irq(&phba->ndlp_lock); 2804 2805 if (vport->port_type != LPFC_PHYSICAL_PORT && 2806 ndlp->nlp_DID == Fabric_DID) { 2807 /* Just free up ndlp with Fabric_DID for vports */ 2808 lpfc_nlp_put(ndlp); 2809 continue; 2810 } 2811 2812 /* take care of nodes in unused state before the state 2813 * machine taking action. 2814 */ 2815 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2816 lpfc_nlp_put(ndlp); 2817 continue; 2818 } 2819 2820 if (ndlp->nlp_type & NLP_FABRIC) 2821 lpfc_disc_state_machine(vport, ndlp, NULL, 2822 NLP_EVT_DEVICE_RECOVERY); 2823 2824 lpfc_disc_state_machine(vport, ndlp, NULL, 2825 NLP_EVT_DEVICE_RM); 2826 } 2827 2828 /* At this point, ALL ndlp's should be gone 2829 * because of the previous NLP_EVT_DEVICE_RM. 2830 * Lets wait for this to happen, if needed. 2831 */ 2832 while (!list_empty(&vport->fc_nodes)) { 2833 if (i++ > 3000) { 2834 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2835 "0233 Nodelist not empty\n"); 2836 list_for_each_entry_safe(ndlp, next_ndlp, 2837 &vport->fc_nodes, nlp_listp) { 2838 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2839 LOG_NODE, 2840 "0282 did:x%x ndlp:x%p " 2841 "usgmap:x%x refcnt:%d\n", 2842 ndlp->nlp_DID, (void *)ndlp, 2843 ndlp->nlp_usg_map, 2844 kref_read(&ndlp->kref)); 2845 } 2846 break; 2847 } 2848 2849 /* Wait for any activity on ndlps to settle */ 2850 msleep(10); 2851 } 2852 lpfc_cleanup_vports_rrqs(vport, NULL); 2853 } 2854 2855 /** 2856 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2857 * @vport: pointer to a virtual N_Port data structure. 2858 * 2859 * This routine stops all the timers associated with a @vport. This function 2860 * is invoked before disabling or deleting a @vport. Note that the physical 2861 * port is treated as @vport 0. 2862 **/ 2863 void 2864 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2865 { 2866 del_timer_sync(&vport->els_tmofunc); 2867 del_timer_sync(&vport->delayed_disc_tmo); 2868 lpfc_can_disctmo(vport); 2869 return; 2870 } 2871 2872 /** 2873 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2874 * @phba: pointer to lpfc hba data structure. 2875 * 2876 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2877 * caller of this routine should already hold the host lock. 2878 **/ 2879 void 2880 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2881 { 2882 /* Clear pending FCF rediscovery wait flag */ 2883 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2884 2885 /* Now, try to stop the timer */ 2886 del_timer(&phba->fcf.redisc_wait); 2887 } 2888 2889 /** 2890 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2891 * @phba: pointer to lpfc hba data structure. 2892 * 2893 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2894 * checks whether the FCF rediscovery wait timer is pending with the host 2895 * lock held before proceeding with disabling the timer and clearing the 2896 * wait timer pendig flag. 2897 **/ 2898 void 2899 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2900 { 2901 spin_lock_irq(&phba->hbalock); 2902 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2903 /* FCF rediscovery timer already fired or stopped */ 2904 spin_unlock_irq(&phba->hbalock); 2905 return; 2906 } 2907 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2908 /* Clear failover in progress flags */ 2909 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2910 spin_unlock_irq(&phba->hbalock); 2911 } 2912 2913 /** 2914 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2915 * @phba: pointer to lpfc hba data structure. 2916 * 2917 * This routine stops all the timers associated with a HBA. This function is 2918 * invoked before either putting a HBA offline or unloading the driver. 2919 **/ 2920 void 2921 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2922 { 2923 lpfc_stop_vport_timers(phba->pport); 2924 del_timer_sync(&phba->sli.mbox_tmo); 2925 del_timer_sync(&phba->fabric_block_timer); 2926 del_timer_sync(&phba->eratt_poll); 2927 del_timer_sync(&phba->hb_tmofunc); 2928 if (phba->sli_rev == LPFC_SLI_REV4) { 2929 del_timer_sync(&phba->rrq_tmr); 2930 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2931 } 2932 phba->hb_outstanding = 0; 2933 2934 switch (phba->pci_dev_grp) { 2935 case LPFC_PCI_DEV_LP: 2936 /* Stop any LightPulse device specific driver timers */ 2937 del_timer_sync(&phba->fcp_poll_timer); 2938 break; 2939 case LPFC_PCI_DEV_OC: 2940 /* Stop any OneConnect device sepcific driver timers */ 2941 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2942 break; 2943 default: 2944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2945 "0297 Invalid device group (x%x)\n", 2946 phba->pci_dev_grp); 2947 break; 2948 } 2949 return; 2950 } 2951 2952 /** 2953 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2954 * @phba: pointer to lpfc hba data structure. 2955 * 2956 * This routine marks a HBA's management interface as blocked. Once the HBA's 2957 * management interface is marked as blocked, all the user space access to 2958 * the HBA, whether they are from sysfs interface or libdfc interface will 2959 * all be blocked. The HBA is set to block the management interface when the 2960 * driver prepares the HBA interface for online or offline. 2961 **/ 2962 static void 2963 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2964 { 2965 unsigned long iflag; 2966 uint8_t actcmd = MBX_HEARTBEAT; 2967 unsigned long timeout; 2968 2969 spin_lock_irqsave(&phba->hbalock, iflag); 2970 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2971 spin_unlock_irqrestore(&phba->hbalock, iflag); 2972 if (mbx_action == LPFC_MBX_NO_WAIT) 2973 return; 2974 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2975 spin_lock_irqsave(&phba->hbalock, iflag); 2976 if (phba->sli.mbox_active) { 2977 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2978 /* Determine how long we might wait for the active mailbox 2979 * command to be gracefully completed by firmware. 2980 */ 2981 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2982 phba->sli.mbox_active) * 1000) + jiffies; 2983 } 2984 spin_unlock_irqrestore(&phba->hbalock, iflag); 2985 2986 /* Wait for the outstnading mailbox command to complete */ 2987 while (phba->sli.mbox_active) { 2988 /* Check active mailbox complete status every 2ms */ 2989 msleep(2); 2990 if (time_after(jiffies, timeout)) { 2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2992 "2813 Mgmt IO is Blocked %x " 2993 "- mbox cmd %x still active\n", 2994 phba->sli.sli_flag, actcmd); 2995 break; 2996 } 2997 } 2998 } 2999 3000 /** 3001 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 3002 * @phba: pointer to lpfc hba data structure. 3003 * 3004 * Allocate RPIs for all active remote nodes. This is needed whenever 3005 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 3006 * is to fixup the temporary rpi assignments. 3007 **/ 3008 void 3009 lpfc_sli4_node_prep(struct lpfc_hba *phba) 3010 { 3011 struct lpfc_nodelist *ndlp, *next_ndlp; 3012 struct lpfc_vport **vports; 3013 int i, rpi; 3014 unsigned long flags; 3015 3016 if (phba->sli_rev != LPFC_SLI_REV4) 3017 return; 3018 3019 vports = lpfc_create_vport_work_array(phba); 3020 if (vports == NULL) 3021 return; 3022 3023 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3024 if (vports[i]->load_flag & FC_UNLOADING) 3025 continue; 3026 3027 list_for_each_entry_safe(ndlp, next_ndlp, 3028 &vports[i]->fc_nodes, 3029 nlp_listp) { 3030 if (!NLP_CHK_NODE_ACT(ndlp)) 3031 continue; 3032 rpi = lpfc_sli4_alloc_rpi(phba); 3033 if (rpi == LPFC_RPI_ALLOC_ERROR) { 3034 spin_lock_irqsave(&phba->ndlp_lock, flags); 3035 NLP_CLR_NODE_ACT(ndlp); 3036 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3037 continue; 3038 } 3039 ndlp->nlp_rpi = rpi; 3040 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3041 "0009 rpi:%x DID:%x " 3042 "flg:%x map:%x %p\n", ndlp->nlp_rpi, 3043 ndlp->nlp_DID, ndlp->nlp_flag, 3044 ndlp->nlp_usg_map, ndlp); 3045 } 3046 } 3047 lpfc_destroy_vport_work_array(phba, vports); 3048 } 3049 3050 /** 3051 * lpfc_online - Initialize and bring a HBA online 3052 * @phba: pointer to lpfc hba data structure. 3053 * 3054 * This routine initializes the HBA and brings a HBA online. During this 3055 * process, the management interface is blocked to prevent user space access 3056 * to the HBA interfering with the driver initialization. 3057 * 3058 * Return codes 3059 * 0 - successful 3060 * 1 - failed 3061 **/ 3062 int 3063 lpfc_online(struct lpfc_hba *phba) 3064 { 3065 struct lpfc_vport *vport; 3066 struct lpfc_vport **vports; 3067 int i, error = 0; 3068 bool vpis_cleared = false; 3069 3070 if (!phba) 3071 return 0; 3072 vport = phba->pport; 3073 3074 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 3075 return 0; 3076 3077 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3078 "0458 Bring Adapter online\n"); 3079 3080 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 3081 3082 if (phba->sli_rev == LPFC_SLI_REV4) { 3083 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 3084 lpfc_unblock_mgmt_io(phba); 3085 return 1; 3086 } 3087 spin_lock_irq(&phba->hbalock); 3088 if (!phba->sli4_hba.max_cfg_param.vpi_used) 3089 vpis_cleared = true; 3090 spin_unlock_irq(&phba->hbalock); 3091 3092 /* Reestablish the local initiator port. 3093 * The offline process destroyed the previous lport. 3094 */ 3095 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 3096 !phba->nvmet_support) { 3097 error = lpfc_nvme_create_localport(phba->pport); 3098 if (error) 3099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3100 "6132 NVME restore reg failed " 3101 "on nvmei error x%x\n", error); 3102 } 3103 } else { 3104 lpfc_sli_queue_init(phba); 3105 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3106 lpfc_unblock_mgmt_io(phba); 3107 return 1; 3108 } 3109 } 3110 3111 vports = lpfc_create_vport_work_array(phba); 3112 if (vports != NULL) { 3113 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3114 struct Scsi_Host *shost; 3115 shost = lpfc_shost_from_vport(vports[i]); 3116 spin_lock_irq(shost->host_lock); 3117 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3118 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3119 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3120 if (phba->sli_rev == LPFC_SLI_REV4) { 3121 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3122 if ((vpis_cleared) && 3123 (vports[i]->port_type != 3124 LPFC_PHYSICAL_PORT)) 3125 vports[i]->vpi = 0; 3126 } 3127 spin_unlock_irq(shost->host_lock); 3128 } 3129 } 3130 lpfc_destroy_vport_work_array(phba, vports); 3131 3132 lpfc_unblock_mgmt_io(phba); 3133 return 0; 3134 } 3135 3136 /** 3137 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3138 * @phba: pointer to lpfc hba data structure. 3139 * 3140 * This routine marks a HBA's management interface as not blocked. Once the 3141 * HBA's management interface is marked as not blocked, all the user space 3142 * access to the HBA, whether they are from sysfs interface or libdfc 3143 * interface will be allowed. The HBA is set to block the management interface 3144 * when the driver prepares the HBA interface for online or offline and then 3145 * set to unblock the management interface afterwards. 3146 **/ 3147 void 3148 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3149 { 3150 unsigned long iflag; 3151 3152 spin_lock_irqsave(&phba->hbalock, iflag); 3153 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3154 spin_unlock_irqrestore(&phba->hbalock, iflag); 3155 } 3156 3157 /** 3158 * lpfc_offline_prep - Prepare a HBA to be brought offline 3159 * @phba: pointer to lpfc hba data structure. 3160 * 3161 * This routine is invoked to prepare a HBA to be brought offline. It performs 3162 * unregistration login to all the nodes on all vports and flushes the mailbox 3163 * queue to make it ready to be brought offline. 3164 **/ 3165 void 3166 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3167 { 3168 struct lpfc_vport *vport = phba->pport; 3169 struct lpfc_nodelist *ndlp, *next_ndlp; 3170 struct lpfc_vport **vports; 3171 struct Scsi_Host *shost; 3172 int i; 3173 3174 if (vport->fc_flag & FC_OFFLINE_MODE) 3175 return; 3176 3177 lpfc_block_mgmt_io(phba, mbx_action); 3178 3179 lpfc_linkdown(phba); 3180 3181 /* Issue an unreg_login to all nodes on all vports */ 3182 vports = lpfc_create_vport_work_array(phba); 3183 if (vports != NULL) { 3184 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3185 if (vports[i]->load_flag & FC_UNLOADING) 3186 continue; 3187 shost = lpfc_shost_from_vport(vports[i]); 3188 spin_lock_irq(shost->host_lock); 3189 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3190 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3191 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3192 spin_unlock_irq(shost->host_lock); 3193 3194 shost = lpfc_shost_from_vport(vports[i]); 3195 list_for_each_entry_safe(ndlp, next_ndlp, 3196 &vports[i]->fc_nodes, 3197 nlp_listp) { 3198 if (!NLP_CHK_NODE_ACT(ndlp)) 3199 continue; 3200 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3201 continue; 3202 if (ndlp->nlp_type & NLP_FABRIC) { 3203 lpfc_disc_state_machine(vports[i], ndlp, 3204 NULL, NLP_EVT_DEVICE_RECOVERY); 3205 lpfc_disc_state_machine(vports[i], ndlp, 3206 NULL, NLP_EVT_DEVICE_RM); 3207 } 3208 spin_lock_irq(shost->host_lock); 3209 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3210 spin_unlock_irq(shost->host_lock); 3211 /* 3212 * Whenever an SLI4 port goes offline, free the 3213 * RPI. Get a new RPI when the adapter port 3214 * comes back online. 3215 */ 3216 if (phba->sli_rev == LPFC_SLI_REV4) { 3217 lpfc_printf_vlog(ndlp->vport, 3218 KERN_INFO, LOG_NODE, 3219 "0011 lpfc_offline: " 3220 "ndlp:x%p did %x " 3221 "usgmap:x%x rpi:%x\n", 3222 ndlp, ndlp->nlp_DID, 3223 ndlp->nlp_usg_map, 3224 ndlp->nlp_rpi); 3225 3226 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3227 } 3228 lpfc_unreg_rpi(vports[i], ndlp); 3229 } 3230 } 3231 } 3232 lpfc_destroy_vport_work_array(phba, vports); 3233 3234 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3235 3236 if (phba->wq) 3237 flush_workqueue(phba->wq); 3238 } 3239 3240 /** 3241 * lpfc_offline - Bring a HBA offline 3242 * @phba: pointer to lpfc hba data structure. 3243 * 3244 * This routine actually brings a HBA offline. It stops all the timers 3245 * associated with the HBA, brings down the SLI layer, and eventually 3246 * marks the HBA as in offline state for the upper layer protocol. 3247 **/ 3248 void 3249 lpfc_offline(struct lpfc_hba *phba) 3250 { 3251 struct Scsi_Host *shost; 3252 struct lpfc_vport **vports; 3253 int i; 3254 3255 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3256 return; 3257 3258 /* stop port and all timers associated with this hba */ 3259 lpfc_stop_port(phba); 3260 3261 /* Tear down the local and target port registrations. The 3262 * nvme transports need to cleanup. 3263 */ 3264 lpfc_nvmet_destroy_targetport(phba); 3265 lpfc_nvme_destroy_localport(phba->pport); 3266 3267 vports = lpfc_create_vport_work_array(phba); 3268 if (vports != NULL) 3269 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3270 lpfc_stop_vport_timers(vports[i]); 3271 lpfc_destroy_vport_work_array(phba, vports); 3272 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3273 "0460 Bring Adapter offline\n"); 3274 /* Bring down the SLI Layer and cleanup. The HBA is offline 3275 now. */ 3276 lpfc_sli_hba_down(phba); 3277 spin_lock_irq(&phba->hbalock); 3278 phba->work_ha = 0; 3279 spin_unlock_irq(&phba->hbalock); 3280 vports = lpfc_create_vport_work_array(phba); 3281 if (vports != NULL) 3282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3283 shost = lpfc_shost_from_vport(vports[i]); 3284 spin_lock_irq(shost->host_lock); 3285 vports[i]->work_port_events = 0; 3286 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3287 spin_unlock_irq(shost->host_lock); 3288 } 3289 lpfc_destroy_vport_work_array(phba, vports); 3290 } 3291 3292 /** 3293 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3294 * @phba: pointer to lpfc hba data structure. 3295 * 3296 * This routine is to free all the SCSI buffers and IOCBs from the driver 3297 * list back to kernel. It is called from lpfc_pci_remove_one to free 3298 * the internal resources before the device is removed from the system. 3299 **/ 3300 static void 3301 lpfc_scsi_free(struct lpfc_hba *phba) 3302 { 3303 struct lpfc_scsi_buf *sb, *sb_next; 3304 3305 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3306 return; 3307 3308 spin_lock_irq(&phba->hbalock); 3309 3310 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3311 3312 spin_lock(&phba->scsi_buf_list_put_lock); 3313 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3314 list) { 3315 list_del(&sb->list); 3316 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3317 sb->dma_handle); 3318 kfree(sb); 3319 phba->total_scsi_bufs--; 3320 } 3321 spin_unlock(&phba->scsi_buf_list_put_lock); 3322 3323 spin_lock(&phba->scsi_buf_list_get_lock); 3324 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3325 list) { 3326 list_del(&sb->list); 3327 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3328 sb->dma_handle); 3329 kfree(sb); 3330 phba->total_scsi_bufs--; 3331 } 3332 spin_unlock(&phba->scsi_buf_list_get_lock); 3333 spin_unlock_irq(&phba->hbalock); 3334 } 3335 /** 3336 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3337 * @phba: pointer to lpfc hba data structure. 3338 * 3339 * This routine is to free all the NVME buffers and IOCBs from the driver 3340 * list back to kernel. It is called from lpfc_pci_remove_one to free 3341 * the internal resources before the device is removed from the system. 3342 **/ 3343 static void 3344 lpfc_nvme_free(struct lpfc_hba *phba) 3345 { 3346 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3347 3348 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3349 return; 3350 3351 spin_lock_irq(&phba->hbalock); 3352 3353 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3354 spin_lock(&phba->nvme_buf_list_put_lock); 3355 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3356 &phba->lpfc_nvme_buf_list_put, list) { 3357 list_del(&lpfc_ncmd->list); 3358 phba->put_nvme_bufs--; 3359 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3360 lpfc_ncmd->dma_handle); 3361 kfree(lpfc_ncmd); 3362 phba->total_nvme_bufs--; 3363 } 3364 spin_unlock(&phba->nvme_buf_list_put_lock); 3365 3366 spin_lock(&phba->nvme_buf_list_get_lock); 3367 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3368 &phba->lpfc_nvme_buf_list_get, list) { 3369 list_del(&lpfc_ncmd->list); 3370 phba->get_nvme_bufs--; 3371 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3372 lpfc_ncmd->dma_handle); 3373 kfree(lpfc_ncmd); 3374 phba->total_nvme_bufs--; 3375 } 3376 spin_unlock(&phba->nvme_buf_list_get_lock); 3377 spin_unlock_irq(&phba->hbalock); 3378 } 3379 /** 3380 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3381 * @phba: pointer to lpfc hba data structure. 3382 * 3383 * This routine first calculates the sizes of the current els and allocated 3384 * scsi sgl lists, and then goes through all sgls to updates the physical 3385 * XRIs assigned due to port function reset. During port initialization, the 3386 * current els and allocated scsi sgl lists are 0s. 3387 * 3388 * Return codes 3389 * 0 - successful (for now, it always returns 0) 3390 **/ 3391 int 3392 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3393 { 3394 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3395 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3396 LIST_HEAD(els_sgl_list); 3397 int rc; 3398 3399 /* 3400 * update on pci function's els xri-sgl list 3401 */ 3402 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3403 3404 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3405 /* els xri-sgl expanded */ 3406 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3407 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3408 "3157 ELS xri-sgl count increased from " 3409 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3410 els_xri_cnt); 3411 /* allocate the additional els sgls */ 3412 for (i = 0; i < xri_cnt; i++) { 3413 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3414 GFP_KERNEL); 3415 if (sglq_entry == NULL) { 3416 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3417 "2562 Failure to allocate an " 3418 "ELS sgl entry:%d\n", i); 3419 rc = -ENOMEM; 3420 goto out_free_mem; 3421 } 3422 sglq_entry->buff_type = GEN_BUFF_TYPE; 3423 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3424 &sglq_entry->phys); 3425 if (sglq_entry->virt == NULL) { 3426 kfree(sglq_entry); 3427 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3428 "2563 Failure to allocate an " 3429 "ELS mbuf:%d\n", i); 3430 rc = -ENOMEM; 3431 goto out_free_mem; 3432 } 3433 sglq_entry->sgl = sglq_entry->virt; 3434 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3435 sglq_entry->state = SGL_FREED; 3436 list_add_tail(&sglq_entry->list, &els_sgl_list); 3437 } 3438 spin_lock_irq(&phba->hbalock); 3439 spin_lock(&phba->sli4_hba.sgl_list_lock); 3440 list_splice_init(&els_sgl_list, 3441 &phba->sli4_hba.lpfc_els_sgl_list); 3442 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3443 spin_unlock_irq(&phba->hbalock); 3444 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3445 /* els xri-sgl shrinked */ 3446 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3447 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3448 "3158 ELS xri-sgl count decreased from " 3449 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3450 els_xri_cnt); 3451 spin_lock_irq(&phba->hbalock); 3452 spin_lock(&phba->sli4_hba.sgl_list_lock); 3453 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3454 &els_sgl_list); 3455 /* release extra els sgls from list */ 3456 for (i = 0; i < xri_cnt; i++) { 3457 list_remove_head(&els_sgl_list, 3458 sglq_entry, struct lpfc_sglq, list); 3459 if (sglq_entry) { 3460 __lpfc_mbuf_free(phba, sglq_entry->virt, 3461 sglq_entry->phys); 3462 kfree(sglq_entry); 3463 } 3464 } 3465 list_splice_init(&els_sgl_list, 3466 &phba->sli4_hba.lpfc_els_sgl_list); 3467 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3468 spin_unlock_irq(&phba->hbalock); 3469 } else 3470 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3471 "3163 ELS xri-sgl count unchanged: %d\n", 3472 els_xri_cnt); 3473 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3474 3475 /* update xris to els sgls on the list */ 3476 sglq_entry = NULL; 3477 sglq_entry_next = NULL; 3478 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3479 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3480 lxri = lpfc_sli4_next_xritag(phba); 3481 if (lxri == NO_XRI) { 3482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3483 "2400 Failed to allocate xri for " 3484 "ELS sgl\n"); 3485 rc = -ENOMEM; 3486 goto out_free_mem; 3487 } 3488 sglq_entry->sli4_lxritag = lxri; 3489 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3490 } 3491 return 0; 3492 3493 out_free_mem: 3494 lpfc_free_els_sgl_list(phba); 3495 return rc; 3496 } 3497 3498 /** 3499 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3500 * @phba: pointer to lpfc hba data structure. 3501 * 3502 * This routine first calculates the sizes of the current els and allocated 3503 * scsi sgl lists, and then goes through all sgls to updates the physical 3504 * XRIs assigned due to port function reset. During port initialization, the 3505 * current els and allocated scsi sgl lists are 0s. 3506 * 3507 * Return codes 3508 * 0 - successful (for now, it always returns 0) 3509 **/ 3510 int 3511 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3512 { 3513 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3514 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3515 uint16_t nvmet_xri_cnt; 3516 LIST_HEAD(nvmet_sgl_list); 3517 int rc; 3518 3519 /* 3520 * update on pci function's nvmet xri-sgl list 3521 */ 3522 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3523 3524 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3525 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3526 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3527 /* els xri-sgl expanded */ 3528 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3529 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3530 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3531 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3532 /* allocate the additional nvmet sgls */ 3533 for (i = 0; i < xri_cnt; i++) { 3534 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3535 GFP_KERNEL); 3536 if (sglq_entry == NULL) { 3537 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3538 "6303 Failure to allocate an " 3539 "NVMET sgl entry:%d\n", i); 3540 rc = -ENOMEM; 3541 goto out_free_mem; 3542 } 3543 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3544 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3545 &sglq_entry->phys); 3546 if (sglq_entry->virt == NULL) { 3547 kfree(sglq_entry); 3548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3549 "6304 Failure to allocate an " 3550 "NVMET buf:%d\n", i); 3551 rc = -ENOMEM; 3552 goto out_free_mem; 3553 } 3554 sglq_entry->sgl = sglq_entry->virt; 3555 memset(sglq_entry->sgl, 0, 3556 phba->cfg_sg_dma_buf_size); 3557 sglq_entry->state = SGL_FREED; 3558 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3559 } 3560 spin_lock_irq(&phba->hbalock); 3561 spin_lock(&phba->sli4_hba.sgl_list_lock); 3562 list_splice_init(&nvmet_sgl_list, 3563 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3564 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3565 spin_unlock_irq(&phba->hbalock); 3566 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3567 /* nvmet xri-sgl shrunk */ 3568 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3569 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3570 "6305 NVMET xri-sgl count decreased from " 3571 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3572 nvmet_xri_cnt); 3573 spin_lock_irq(&phba->hbalock); 3574 spin_lock(&phba->sli4_hba.sgl_list_lock); 3575 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3576 &nvmet_sgl_list); 3577 /* release extra nvmet sgls from list */ 3578 for (i = 0; i < xri_cnt; i++) { 3579 list_remove_head(&nvmet_sgl_list, 3580 sglq_entry, struct lpfc_sglq, list); 3581 if (sglq_entry) { 3582 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3583 sglq_entry->phys); 3584 kfree(sglq_entry); 3585 } 3586 } 3587 list_splice_init(&nvmet_sgl_list, 3588 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3589 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3590 spin_unlock_irq(&phba->hbalock); 3591 } else 3592 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3593 "6306 NVMET xri-sgl count unchanged: %d\n", 3594 nvmet_xri_cnt); 3595 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3596 3597 /* update xris to nvmet sgls on the list */ 3598 sglq_entry = NULL; 3599 sglq_entry_next = NULL; 3600 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3601 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3602 lxri = lpfc_sli4_next_xritag(phba); 3603 if (lxri == NO_XRI) { 3604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3605 "6307 Failed to allocate xri for " 3606 "NVMET sgl\n"); 3607 rc = -ENOMEM; 3608 goto out_free_mem; 3609 } 3610 sglq_entry->sli4_lxritag = lxri; 3611 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3612 } 3613 return 0; 3614 3615 out_free_mem: 3616 lpfc_free_nvmet_sgl_list(phba); 3617 return rc; 3618 } 3619 3620 /** 3621 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3622 * @phba: pointer to lpfc hba data structure. 3623 * 3624 * This routine first calculates the sizes of the current els and allocated 3625 * scsi sgl lists, and then goes through all sgls to updates the physical 3626 * XRIs assigned due to port function reset. During port initialization, the 3627 * current els and allocated scsi sgl lists are 0s. 3628 * 3629 * Return codes 3630 * 0 - successful (for now, it always returns 0) 3631 **/ 3632 int 3633 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3634 { 3635 struct lpfc_scsi_buf *psb, *psb_next; 3636 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3637 LIST_HEAD(scsi_sgl_list); 3638 int rc; 3639 3640 /* 3641 * update on pci function's els xri-sgl list 3642 */ 3643 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3644 phba->total_scsi_bufs = 0; 3645 3646 /* 3647 * update on pci function's allocated scsi xri-sgl list 3648 */ 3649 /* maximum number of xris available for scsi buffers */ 3650 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3651 els_xri_cnt; 3652 3653 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3654 return 0; 3655 3656 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3657 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3658 (phba->sli4_hba.scsi_xri_max * 3659 phba->cfg_xri_split) / 100; 3660 3661 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3662 spin_lock(&phba->scsi_buf_list_put_lock); 3663 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3664 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3665 spin_unlock(&phba->scsi_buf_list_put_lock); 3666 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3667 3668 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3669 "6060 Current allocated SCSI xri-sgl count:%d, " 3670 "maximum SCSI xri count:%d (split:%d)\n", 3671 phba->sli4_hba.scsi_xri_cnt, 3672 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3673 3674 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3675 /* max scsi xri shrinked below the allocated scsi buffers */ 3676 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3677 phba->sli4_hba.scsi_xri_max; 3678 /* release the extra allocated scsi buffers */ 3679 for (i = 0; i < scsi_xri_cnt; i++) { 3680 list_remove_head(&scsi_sgl_list, psb, 3681 struct lpfc_scsi_buf, list); 3682 if (psb) { 3683 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3684 psb->data, psb->dma_handle); 3685 kfree(psb); 3686 } 3687 } 3688 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3689 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3690 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3691 } 3692 3693 /* update xris associated to remaining allocated scsi buffers */ 3694 psb = NULL; 3695 psb_next = NULL; 3696 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3697 lxri = lpfc_sli4_next_xritag(phba); 3698 if (lxri == NO_XRI) { 3699 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3700 "2560 Failed to allocate xri for " 3701 "scsi buffer\n"); 3702 rc = -ENOMEM; 3703 goto out_free_mem; 3704 } 3705 psb->cur_iocbq.sli4_lxritag = lxri; 3706 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3707 } 3708 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3709 spin_lock(&phba->scsi_buf_list_put_lock); 3710 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3711 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3712 spin_unlock(&phba->scsi_buf_list_put_lock); 3713 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3714 return 0; 3715 3716 out_free_mem: 3717 lpfc_scsi_free(phba); 3718 return rc; 3719 } 3720 3721 static uint64_t 3722 lpfc_get_wwpn(struct lpfc_hba *phba) 3723 { 3724 uint64_t wwn; 3725 int rc; 3726 LPFC_MBOXQ_t *mboxq; 3727 MAILBOX_t *mb; 3728 3729 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3730 GFP_KERNEL); 3731 if (!mboxq) 3732 return (uint64_t)-1; 3733 3734 /* First get WWN of HBA instance */ 3735 lpfc_read_nv(phba, mboxq); 3736 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3737 if (rc != MBX_SUCCESS) { 3738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3739 "6019 Mailbox failed , mbxCmd x%x " 3740 "READ_NV, mbxStatus x%x\n", 3741 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3742 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3743 mempool_free(mboxq, phba->mbox_mem_pool); 3744 return (uint64_t) -1; 3745 } 3746 mb = &mboxq->u.mb; 3747 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3748 /* wwn is WWPN of HBA instance */ 3749 mempool_free(mboxq, phba->mbox_mem_pool); 3750 if (phba->sli_rev == LPFC_SLI_REV4) 3751 return be64_to_cpu(wwn); 3752 else 3753 return rol64(wwn, 32); 3754 } 3755 3756 /** 3757 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3758 * @phba: pointer to lpfc hba data structure. 3759 * 3760 * This routine first calculates the sizes of the current els and allocated 3761 * scsi sgl lists, and then goes through all sgls to updates the physical 3762 * XRIs assigned due to port function reset. During port initialization, the 3763 * current els and allocated scsi sgl lists are 0s. 3764 * 3765 * Return codes 3766 * 0 - successful (for now, it always returns 0) 3767 **/ 3768 int 3769 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3770 { 3771 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3772 uint16_t i, lxri, els_xri_cnt; 3773 uint16_t nvme_xri_cnt, nvme_xri_max; 3774 LIST_HEAD(nvme_sgl_list); 3775 int rc, cnt; 3776 3777 phba->total_nvme_bufs = 0; 3778 phba->get_nvme_bufs = 0; 3779 phba->put_nvme_bufs = 0; 3780 3781 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3782 return 0; 3783 /* 3784 * update on pci function's allocated nvme xri-sgl list 3785 */ 3786 3787 /* maximum number of xris available for nvme buffers */ 3788 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3789 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3790 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3791 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3792 3793 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3794 "6074 Current allocated NVME xri-sgl count:%d, " 3795 "maximum NVME xri count:%d\n", 3796 phba->sli4_hba.nvme_xri_cnt, 3797 phba->sli4_hba.nvme_xri_max); 3798 3799 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3800 spin_lock(&phba->nvme_buf_list_put_lock); 3801 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3802 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3803 cnt = phba->get_nvme_bufs + phba->put_nvme_bufs; 3804 phba->get_nvme_bufs = 0; 3805 phba->put_nvme_bufs = 0; 3806 spin_unlock(&phba->nvme_buf_list_put_lock); 3807 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3808 3809 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3810 /* max nvme xri shrunk below the allocated nvme buffers */ 3811 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3812 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3813 phba->sli4_hba.nvme_xri_max; 3814 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3815 /* release the extra allocated nvme buffers */ 3816 for (i = 0; i < nvme_xri_cnt; i++) { 3817 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3818 struct lpfc_nvme_buf, list); 3819 if (lpfc_ncmd) { 3820 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3821 lpfc_ncmd->data, 3822 lpfc_ncmd->dma_handle); 3823 kfree(lpfc_ncmd); 3824 } 3825 } 3826 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3827 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3828 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3829 } 3830 3831 /* update xris associated to remaining allocated nvme buffers */ 3832 lpfc_ncmd = NULL; 3833 lpfc_ncmd_next = NULL; 3834 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3835 &nvme_sgl_list, list) { 3836 lxri = lpfc_sli4_next_xritag(phba); 3837 if (lxri == NO_XRI) { 3838 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3839 "6075 Failed to allocate xri for " 3840 "nvme buffer\n"); 3841 rc = -ENOMEM; 3842 goto out_free_mem; 3843 } 3844 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3845 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3846 } 3847 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3848 spin_lock(&phba->nvme_buf_list_put_lock); 3849 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3850 phba->get_nvme_bufs = cnt; 3851 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3852 spin_unlock(&phba->nvme_buf_list_put_lock); 3853 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3854 return 0; 3855 3856 out_free_mem: 3857 lpfc_nvme_free(phba); 3858 return rc; 3859 } 3860 3861 /** 3862 * lpfc_create_port - Create an FC port 3863 * @phba: pointer to lpfc hba data structure. 3864 * @instance: a unique integer ID to this FC port. 3865 * @dev: pointer to the device data structure. 3866 * 3867 * This routine creates a FC port for the upper layer protocol. The FC port 3868 * can be created on top of either a physical port or a virtual port provided 3869 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3870 * and associates the FC port created before adding the shost into the SCSI 3871 * layer. 3872 * 3873 * Return codes 3874 * @vport - pointer to the virtual N_Port data structure. 3875 * NULL - port create failed. 3876 **/ 3877 struct lpfc_vport * 3878 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3879 { 3880 struct lpfc_vport *vport; 3881 struct Scsi_Host *shost = NULL; 3882 int error = 0; 3883 int i; 3884 uint64_t wwn; 3885 bool use_no_reset_hba = false; 3886 int rc; 3887 3888 if (lpfc_no_hba_reset_cnt) { 3889 if (phba->sli_rev < LPFC_SLI_REV4 && 3890 dev == &phba->pcidev->dev) { 3891 /* Reset the port first */ 3892 lpfc_sli_brdrestart(phba); 3893 rc = lpfc_sli_chipset_init(phba); 3894 if (rc) 3895 return NULL; 3896 } 3897 wwn = lpfc_get_wwpn(phba); 3898 } 3899 3900 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3901 if (wwn == lpfc_no_hba_reset[i]) { 3902 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3903 "6020 Setting use_no_reset port=%llx\n", 3904 wwn); 3905 use_no_reset_hba = true; 3906 break; 3907 } 3908 } 3909 3910 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3911 if (dev != &phba->pcidev->dev) { 3912 shost = scsi_host_alloc(&lpfc_vport_template, 3913 sizeof(struct lpfc_vport)); 3914 } else { 3915 if (!use_no_reset_hba) 3916 shost = scsi_host_alloc(&lpfc_template, 3917 sizeof(struct lpfc_vport)); 3918 else 3919 shost = scsi_host_alloc(&lpfc_template_no_hr, 3920 sizeof(struct lpfc_vport)); 3921 } 3922 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3923 shost = scsi_host_alloc(&lpfc_template_nvme, 3924 sizeof(struct lpfc_vport)); 3925 } 3926 if (!shost) 3927 goto out; 3928 3929 vport = (struct lpfc_vport *) shost->hostdata; 3930 vport->phba = phba; 3931 vport->load_flag |= FC_LOADING; 3932 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3933 vport->fc_rscn_flush = 0; 3934 lpfc_get_vport_cfgparam(vport); 3935 3936 shost->unique_id = instance; 3937 shost->max_id = LPFC_MAX_TARGET; 3938 shost->max_lun = vport->cfg_max_luns; 3939 shost->this_id = -1; 3940 shost->max_cmd_len = 16; 3941 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3942 if (phba->sli_rev == LPFC_SLI_REV4) { 3943 shost->dma_boundary = 3944 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3945 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3946 } 3947 3948 /* 3949 * Set initial can_queue value since 0 is no longer supported and 3950 * scsi_add_host will fail. This will be adjusted later based on the 3951 * max xri value determined in hba setup. 3952 */ 3953 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3954 if (dev != &phba->pcidev->dev) { 3955 shost->transportt = lpfc_vport_transport_template; 3956 vport->port_type = LPFC_NPIV_PORT; 3957 } else { 3958 shost->transportt = lpfc_transport_template; 3959 vport->port_type = LPFC_PHYSICAL_PORT; 3960 } 3961 3962 /* Initialize all internally managed lists. */ 3963 INIT_LIST_HEAD(&vport->fc_nodes); 3964 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3965 spin_lock_init(&vport->work_port_lock); 3966 3967 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); 3968 3969 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); 3970 3971 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); 3972 3973 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3974 if (error) 3975 goto out_put_shost; 3976 3977 spin_lock_irq(&phba->hbalock); 3978 list_add_tail(&vport->listentry, &phba->port_list); 3979 spin_unlock_irq(&phba->hbalock); 3980 return vport; 3981 3982 out_put_shost: 3983 scsi_host_put(shost); 3984 out: 3985 return NULL; 3986 } 3987 3988 /** 3989 * destroy_port - destroy an FC port 3990 * @vport: pointer to an lpfc virtual N_Port data structure. 3991 * 3992 * This routine destroys a FC port from the upper layer protocol. All the 3993 * resources associated with the port are released. 3994 **/ 3995 void 3996 destroy_port(struct lpfc_vport *vport) 3997 { 3998 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3999 struct lpfc_hba *phba = vport->phba; 4000 4001 lpfc_debugfs_terminate(vport); 4002 fc_remove_host(shost); 4003 scsi_remove_host(shost); 4004 4005 spin_lock_irq(&phba->hbalock); 4006 list_del_init(&vport->listentry); 4007 spin_unlock_irq(&phba->hbalock); 4008 4009 lpfc_cleanup(vport); 4010 return; 4011 } 4012 4013 /** 4014 * lpfc_get_instance - Get a unique integer ID 4015 * 4016 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 4017 * uses the kernel idr facility to perform the task. 4018 * 4019 * Return codes: 4020 * instance - a unique integer ID allocated as the new instance. 4021 * -1 - lpfc get instance failed. 4022 **/ 4023 int 4024 lpfc_get_instance(void) 4025 { 4026 int ret; 4027 4028 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4029 return ret < 0 ? -1 : ret; 4030 } 4031 4032 /** 4033 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4034 * @shost: pointer to SCSI host data structure. 4035 * @time: elapsed time of the scan in jiffies. 4036 * 4037 * This routine is called by the SCSI layer with a SCSI host to determine 4038 * whether the scan host is finished. 4039 * 4040 * Note: there is no scan_start function as adapter initialization will have 4041 * asynchronously kicked off the link initialization. 4042 * 4043 * Return codes 4044 * 0 - SCSI host scan is not over yet. 4045 * 1 - SCSI host scan is over. 4046 **/ 4047 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4048 { 4049 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4050 struct lpfc_hba *phba = vport->phba; 4051 int stat = 0; 4052 4053 spin_lock_irq(shost->host_lock); 4054 4055 if (vport->load_flag & FC_UNLOADING) { 4056 stat = 1; 4057 goto finished; 4058 } 4059 if (time >= msecs_to_jiffies(30 * 1000)) { 4060 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4061 "0461 Scanning longer than 30 " 4062 "seconds. Continuing initialization\n"); 4063 stat = 1; 4064 goto finished; 4065 } 4066 if (time >= msecs_to_jiffies(15 * 1000) && 4067 phba->link_state <= LPFC_LINK_DOWN) { 4068 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4069 "0465 Link down longer than 15 " 4070 "seconds. Continuing initialization\n"); 4071 stat = 1; 4072 goto finished; 4073 } 4074 4075 if (vport->port_state != LPFC_VPORT_READY) 4076 goto finished; 4077 if (vport->num_disc_nodes || vport->fc_prli_sent) 4078 goto finished; 4079 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4080 goto finished; 4081 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4082 goto finished; 4083 4084 stat = 1; 4085 4086 finished: 4087 spin_unlock_irq(shost->host_lock); 4088 return stat; 4089 } 4090 4091 /** 4092 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4093 * @shost: pointer to SCSI host data structure. 4094 * 4095 * This routine initializes a given SCSI host attributes on a FC port. The 4096 * SCSI host can be either on top of a physical port or a virtual port. 4097 **/ 4098 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4099 { 4100 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4101 struct lpfc_hba *phba = vport->phba; 4102 /* 4103 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4104 */ 4105 4106 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4107 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4108 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4109 4110 memset(fc_host_supported_fc4s(shost), 0, 4111 sizeof(fc_host_supported_fc4s(shost))); 4112 fc_host_supported_fc4s(shost)[2] = 1; 4113 fc_host_supported_fc4s(shost)[7] = 1; 4114 4115 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4116 sizeof fc_host_symbolic_name(shost)); 4117 4118 fc_host_supported_speeds(shost) = 0; 4119 if (phba->lmt & LMT_64Gb) 4120 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT; 4121 if (phba->lmt & LMT_32Gb) 4122 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4123 if (phba->lmt & LMT_16Gb) 4124 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4125 if (phba->lmt & LMT_10Gb) 4126 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4127 if (phba->lmt & LMT_8Gb) 4128 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4129 if (phba->lmt & LMT_4Gb) 4130 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4131 if (phba->lmt & LMT_2Gb) 4132 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4133 if (phba->lmt & LMT_1Gb) 4134 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4135 4136 fc_host_maxframe_size(shost) = 4137 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4138 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4139 4140 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4141 4142 /* This value is also unchanging */ 4143 memset(fc_host_active_fc4s(shost), 0, 4144 sizeof(fc_host_active_fc4s(shost))); 4145 fc_host_active_fc4s(shost)[2] = 1; 4146 fc_host_active_fc4s(shost)[7] = 1; 4147 4148 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4149 spin_lock_irq(shost->host_lock); 4150 vport->load_flag &= ~FC_LOADING; 4151 spin_unlock_irq(shost->host_lock); 4152 } 4153 4154 /** 4155 * lpfc_stop_port_s3 - Stop SLI3 device port 4156 * @phba: pointer to lpfc hba data structure. 4157 * 4158 * This routine is invoked to stop an SLI3 device port, it stops the device 4159 * from generating interrupts and stops the device driver's timers for the 4160 * device. 4161 **/ 4162 static void 4163 lpfc_stop_port_s3(struct lpfc_hba *phba) 4164 { 4165 /* Clear all interrupt enable conditions */ 4166 writel(0, phba->HCregaddr); 4167 readl(phba->HCregaddr); /* flush */ 4168 /* Clear all pending interrupts */ 4169 writel(0xffffffff, phba->HAregaddr); 4170 readl(phba->HAregaddr); /* flush */ 4171 4172 /* Reset some HBA SLI setup states */ 4173 lpfc_stop_hba_timers(phba); 4174 phba->pport->work_port_events = 0; 4175 } 4176 4177 /** 4178 * lpfc_stop_port_s4 - Stop SLI4 device port 4179 * @phba: pointer to lpfc hba data structure. 4180 * 4181 * This routine is invoked to stop an SLI4 device port, it stops the device 4182 * from generating interrupts and stops the device driver's timers for the 4183 * device. 4184 **/ 4185 static void 4186 lpfc_stop_port_s4(struct lpfc_hba *phba) 4187 { 4188 /* Reset some HBA SLI4 setup states */ 4189 lpfc_stop_hba_timers(phba); 4190 phba->pport->work_port_events = 0; 4191 phba->sli4_hba.intr_enable = 0; 4192 } 4193 4194 /** 4195 * lpfc_stop_port - Wrapper function for stopping hba port 4196 * @phba: Pointer to HBA context object. 4197 * 4198 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4199 * the API jump table function pointer from the lpfc_hba struct. 4200 **/ 4201 void 4202 lpfc_stop_port(struct lpfc_hba *phba) 4203 { 4204 phba->lpfc_stop_port(phba); 4205 4206 if (phba->wq) 4207 flush_workqueue(phba->wq); 4208 } 4209 4210 /** 4211 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4212 * @phba: Pointer to hba for which this call is being executed. 4213 * 4214 * This routine starts the timer waiting for the FCF rediscovery to complete. 4215 **/ 4216 void 4217 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4218 { 4219 unsigned long fcf_redisc_wait_tmo = 4220 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4221 /* Start fcf rediscovery wait period timer */ 4222 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4223 spin_lock_irq(&phba->hbalock); 4224 /* Allow action to new fcf asynchronous event */ 4225 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4226 /* Mark the FCF rediscovery pending state */ 4227 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4228 spin_unlock_irq(&phba->hbalock); 4229 } 4230 4231 /** 4232 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4233 * @ptr: Map to lpfc_hba data structure pointer. 4234 * 4235 * This routine is invoked when waiting for FCF table rediscover has been 4236 * timed out. If new FCF record(s) has (have) been discovered during the 4237 * wait period, a new FCF event shall be added to the FCOE async event 4238 * list, and then worker thread shall be waked up for processing from the 4239 * worker thread context. 4240 **/ 4241 static void 4242 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) 4243 { 4244 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); 4245 4246 /* Don't send FCF rediscovery event if timer cancelled */ 4247 spin_lock_irq(&phba->hbalock); 4248 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4249 spin_unlock_irq(&phba->hbalock); 4250 return; 4251 } 4252 /* Clear FCF rediscovery timer pending flag */ 4253 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4254 /* FCF rediscovery event to worker thread */ 4255 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4256 spin_unlock_irq(&phba->hbalock); 4257 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4258 "2776 FCF rediscover quiescent timer expired\n"); 4259 /* wake up worker thread */ 4260 lpfc_worker_wake_up(phba); 4261 } 4262 4263 /** 4264 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4265 * @phba: pointer to lpfc hba data structure. 4266 * @acqe_link: pointer to the async link completion queue entry. 4267 * 4268 * This routine is to parse the SLI4 link-attention link fault code and 4269 * translate it into the base driver's read link attention mailbox command 4270 * status. 4271 * 4272 * Return: Link-attention status in terms of base driver's coding. 4273 **/ 4274 static uint16_t 4275 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4276 struct lpfc_acqe_link *acqe_link) 4277 { 4278 uint16_t latt_fault; 4279 4280 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4281 case LPFC_ASYNC_LINK_FAULT_NONE: 4282 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4283 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4284 latt_fault = 0; 4285 break; 4286 default: 4287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4288 "0398 Invalid link fault code: x%x\n", 4289 bf_get(lpfc_acqe_link_fault, acqe_link)); 4290 latt_fault = MBXERR_ERROR; 4291 break; 4292 } 4293 return latt_fault; 4294 } 4295 4296 /** 4297 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4298 * @phba: pointer to lpfc hba data structure. 4299 * @acqe_link: pointer to the async link completion queue entry. 4300 * 4301 * This routine is to parse the SLI4 link attention type and translate it 4302 * into the base driver's link attention type coding. 4303 * 4304 * Return: Link attention type in terms of base driver's coding. 4305 **/ 4306 static uint8_t 4307 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4308 struct lpfc_acqe_link *acqe_link) 4309 { 4310 uint8_t att_type; 4311 4312 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4313 case LPFC_ASYNC_LINK_STATUS_DOWN: 4314 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4315 att_type = LPFC_ATT_LINK_DOWN; 4316 break; 4317 case LPFC_ASYNC_LINK_STATUS_UP: 4318 /* Ignore physical link up events - wait for logical link up */ 4319 att_type = LPFC_ATT_RESERVED; 4320 break; 4321 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4322 att_type = LPFC_ATT_LINK_UP; 4323 break; 4324 default: 4325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4326 "0399 Invalid link attention type: x%x\n", 4327 bf_get(lpfc_acqe_link_status, acqe_link)); 4328 att_type = LPFC_ATT_RESERVED; 4329 break; 4330 } 4331 return att_type; 4332 } 4333 4334 /** 4335 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4336 * @phba: pointer to lpfc hba data structure. 4337 * 4338 * This routine is to get an SLI3 FC port's link speed in Mbps. 4339 * 4340 * Return: link speed in terms of Mbps. 4341 **/ 4342 uint32_t 4343 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4344 { 4345 uint32_t link_speed; 4346 4347 if (!lpfc_is_link_up(phba)) 4348 return 0; 4349 4350 if (phba->sli_rev <= LPFC_SLI_REV3) { 4351 switch (phba->fc_linkspeed) { 4352 case LPFC_LINK_SPEED_1GHZ: 4353 link_speed = 1000; 4354 break; 4355 case LPFC_LINK_SPEED_2GHZ: 4356 link_speed = 2000; 4357 break; 4358 case LPFC_LINK_SPEED_4GHZ: 4359 link_speed = 4000; 4360 break; 4361 case LPFC_LINK_SPEED_8GHZ: 4362 link_speed = 8000; 4363 break; 4364 case LPFC_LINK_SPEED_10GHZ: 4365 link_speed = 10000; 4366 break; 4367 case LPFC_LINK_SPEED_16GHZ: 4368 link_speed = 16000; 4369 break; 4370 default: 4371 link_speed = 0; 4372 } 4373 } else { 4374 if (phba->sli4_hba.link_state.logical_speed) 4375 link_speed = 4376 phba->sli4_hba.link_state.logical_speed; 4377 else 4378 link_speed = phba->sli4_hba.link_state.speed; 4379 } 4380 return link_speed; 4381 } 4382 4383 /** 4384 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4385 * @phba: pointer to lpfc hba data structure. 4386 * @evt_code: asynchronous event code. 4387 * @speed_code: asynchronous event link speed code. 4388 * 4389 * This routine is to parse the giving SLI4 async event link speed code into 4390 * value of Mbps for the link speed. 4391 * 4392 * Return: link speed in terms of Mbps. 4393 **/ 4394 static uint32_t 4395 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4396 uint8_t speed_code) 4397 { 4398 uint32_t port_speed; 4399 4400 switch (evt_code) { 4401 case LPFC_TRAILER_CODE_LINK: 4402 switch (speed_code) { 4403 case LPFC_ASYNC_LINK_SPEED_ZERO: 4404 port_speed = 0; 4405 break; 4406 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4407 port_speed = 10; 4408 break; 4409 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4410 port_speed = 100; 4411 break; 4412 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4413 port_speed = 1000; 4414 break; 4415 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4416 port_speed = 10000; 4417 break; 4418 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4419 port_speed = 20000; 4420 break; 4421 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4422 port_speed = 25000; 4423 break; 4424 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4425 port_speed = 40000; 4426 break; 4427 default: 4428 port_speed = 0; 4429 } 4430 break; 4431 case LPFC_TRAILER_CODE_FC: 4432 switch (speed_code) { 4433 case LPFC_FC_LA_SPEED_UNKNOWN: 4434 port_speed = 0; 4435 break; 4436 case LPFC_FC_LA_SPEED_1G: 4437 port_speed = 1000; 4438 break; 4439 case LPFC_FC_LA_SPEED_2G: 4440 port_speed = 2000; 4441 break; 4442 case LPFC_FC_LA_SPEED_4G: 4443 port_speed = 4000; 4444 break; 4445 case LPFC_FC_LA_SPEED_8G: 4446 port_speed = 8000; 4447 break; 4448 case LPFC_FC_LA_SPEED_10G: 4449 port_speed = 10000; 4450 break; 4451 case LPFC_FC_LA_SPEED_16G: 4452 port_speed = 16000; 4453 break; 4454 case LPFC_FC_LA_SPEED_32G: 4455 port_speed = 32000; 4456 break; 4457 case LPFC_FC_LA_SPEED_64G: 4458 port_speed = 64000; 4459 break; 4460 default: 4461 port_speed = 0; 4462 } 4463 break; 4464 default: 4465 port_speed = 0; 4466 } 4467 return port_speed; 4468 } 4469 4470 /** 4471 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4472 * @phba: pointer to lpfc hba data structure. 4473 * @acqe_link: pointer to the async link completion queue entry. 4474 * 4475 * This routine is to handle the SLI4 asynchronous FCoE link event. 4476 **/ 4477 static void 4478 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4479 struct lpfc_acqe_link *acqe_link) 4480 { 4481 struct lpfc_dmabuf *mp; 4482 LPFC_MBOXQ_t *pmb; 4483 MAILBOX_t *mb; 4484 struct lpfc_mbx_read_top *la; 4485 uint8_t att_type; 4486 int rc; 4487 4488 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4489 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4490 return; 4491 phba->fcoe_eventtag = acqe_link->event_tag; 4492 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4493 if (!pmb) { 4494 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4495 "0395 The mboxq allocation failed\n"); 4496 return; 4497 } 4498 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4499 if (!mp) { 4500 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4501 "0396 The lpfc_dmabuf allocation failed\n"); 4502 goto out_free_pmb; 4503 } 4504 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4505 if (!mp->virt) { 4506 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4507 "0397 The mbuf allocation failed\n"); 4508 goto out_free_dmabuf; 4509 } 4510 4511 /* Cleanup any outstanding ELS commands */ 4512 lpfc_els_flush_all_cmd(phba); 4513 4514 /* Block ELS IOCBs until we have done process link event */ 4515 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4516 4517 /* Update link event statistics */ 4518 phba->sli.slistat.link_event++; 4519 4520 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4521 lpfc_read_topology(phba, pmb, mp); 4522 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4523 pmb->vport = phba->pport; 4524 4525 /* Keep the link status for extra SLI4 state machine reference */ 4526 phba->sli4_hba.link_state.speed = 4527 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4528 bf_get(lpfc_acqe_link_speed, acqe_link)); 4529 phba->sli4_hba.link_state.duplex = 4530 bf_get(lpfc_acqe_link_duplex, acqe_link); 4531 phba->sli4_hba.link_state.status = 4532 bf_get(lpfc_acqe_link_status, acqe_link); 4533 phba->sli4_hba.link_state.type = 4534 bf_get(lpfc_acqe_link_type, acqe_link); 4535 phba->sli4_hba.link_state.number = 4536 bf_get(lpfc_acqe_link_number, acqe_link); 4537 phba->sli4_hba.link_state.fault = 4538 bf_get(lpfc_acqe_link_fault, acqe_link); 4539 phba->sli4_hba.link_state.logical_speed = 4540 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4541 4542 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4543 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4544 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4545 "Logical speed:%dMbps Fault:%d\n", 4546 phba->sli4_hba.link_state.speed, 4547 phba->sli4_hba.link_state.topology, 4548 phba->sli4_hba.link_state.status, 4549 phba->sli4_hba.link_state.type, 4550 phba->sli4_hba.link_state.number, 4551 phba->sli4_hba.link_state.logical_speed, 4552 phba->sli4_hba.link_state.fault); 4553 /* 4554 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4555 * topology info. Note: Optional for non FC-AL ports. 4556 */ 4557 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4559 if (rc == MBX_NOT_FINISHED) 4560 goto out_free_dmabuf; 4561 return; 4562 } 4563 /* 4564 * For FCoE Mode: fill in all the topology information we need and call 4565 * the READ_TOPOLOGY completion routine to continue without actually 4566 * sending the READ_TOPOLOGY mailbox command to the port. 4567 */ 4568 /* Parse and translate status field */ 4569 mb = &pmb->u.mb; 4570 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4571 4572 /* Parse and translate link attention fields */ 4573 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4574 la->eventTag = acqe_link->event_tag; 4575 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4576 bf_set(lpfc_mbx_read_top_link_spd, la, 4577 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4578 4579 /* Fake the the following irrelvant fields */ 4580 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4581 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4582 bf_set(lpfc_mbx_read_top_il, la, 0); 4583 bf_set(lpfc_mbx_read_top_pb, la, 0); 4584 bf_set(lpfc_mbx_read_top_fa, la, 0); 4585 bf_set(lpfc_mbx_read_top_mm, la, 0); 4586 4587 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4588 lpfc_mbx_cmpl_read_topology(phba, pmb); 4589 4590 return; 4591 4592 out_free_dmabuf: 4593 kfree(mp); 4594 out_free_pmb: 4595 mempool_free(pmb, phba->mbox_mem_pool); 4596 } 4597 4598 /** 4599 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4600 * @phba: pointer to lpfc hba data structure. 4601 * @acqe_fc: pointer to the async fc completion queue entry. 4602 * 4603 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4604 * that the event was received and then issue a read_topology mailbox command so 4605 * that the rest of the driver will treat it the same as SLI3. 4606 **/ 4607 static void 4608 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4609 { 4610 struct lpfc_dmabuf *mp; 4611 LPFC_MBOXQ_t *pmb; 4612 MAILBOX_t *mb; 4613 struct lpfc_mbx_read_top *la; 4614 int rc; 4615 4616 if (bf_get(lpfc_trailer_type, acqe_fc) != 4617 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4618 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4619 "2895 Non FC link Event detected.(%d)\n", 4620 bf_get(lpfc_trailer_type, acqe_fc)); 4621 return; 4622 } 4623 /* Keep the link status for extra SLI4 state machine reference */ 4624 phba->sli4_hba.link_state.speed = 4625 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4626 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4627 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4628 phba->sli4_hba.link_state.topology = 4629 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4630 phba->sli4_hba.link_state.status = 4631 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4632 phba->sli4_hba.link_state.type = 4633 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4634 phba->sli4_hba.link_state.number = 4635 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4636 phba->sli4_hba.link_state.fault = 4637 bf_get(lpfc_acqe_link_fault, acqe_fc); 4638 phba->sli4_hba.link_state.logical_speed = 4639 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4640 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4641 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4642 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4643 "%dMbps Fault:%d\n", 4644 phba->sli4_hba.link_state.speed, 4645 phba->sli4_hba.link_state.topology, 4646 phba->sli4_hba.link_state.status, 4647 phba->sli4_hba.link_state.type, 4648 phba->sli4_hba.link_state.number, 4649 phba->sli4_hba.link_state.logical_speed, 4650 phba->sli4_hba.link_state.fault); 4651 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4652 if (!pmb) { 4653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4654 "2897 The mboxq allocation failed\n"); 4655 return; 4656 } 4657 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4658 if (!mp) { 4659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4660 "2898 The lpfc_dmabuf allocation failed\n"); 4661 goto out_free_pmb; 4662 } 4663 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4664 if (!mp->virt) { 4665 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4666 "2899 The mbuf allocation failed\n"); 4667 goto out_free_dmabuf; 4668 } 4669 4670 /* Cleanup any outstanding ELS commands */ 4671 lpfc_els_flush_all_cmd(phba); 4672 4673 /* Block ELS IOCBs until we have done process link event */ 4674 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4675 4676 /* Update link event statistics */ 4677 phba->sli.slistat.link_event++; 4678 4679 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4680 lpfc_read_topology(phba, pmb, mp); 4681 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4682 pmb->vport = phba->pport; 4683 4684 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4685 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4686 4687 switch (phba->sli4_hba.link_state.status) { 4688 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4689 phba->link_flag |= LS_MDS_LINK_DOWN; 4690 break; 4691 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4692 phba->link_flag |= LS_MDS_LOOPBACK; 4693 break; 4694 default: 4695 break; 4696 } 4697 4698 /* Parse and translate status field */ 4699 mb = &pmb->u.mb; 4700 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4701 (void *)acqe_fc); 4702 4703 /* Parse and translate link attention fields */ 4704 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4705 la->eventTag = acqe_fc->event_tag; 4706 4707 if (phba->sli4_hba.link_state.status == 4708 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4709 bf_set(lpfc_mbx_read_top_att_type, la, 4710 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4711 } else { 4712 bf_set(lpfc_mbx_read_top_att_type, la, 4713 LPFC_FC_LA_TYPE_LINK_DOWN); 4714 } 4715 /* Invoke the mailbox command callback function */ 4716 lpfc_mbx_cmpl_read_topology(phba, pmb); 4717 4718 return; 4719 } 4720 4721 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4722 if (rc == MBX_NOT_FINISHED) 4723 goto out_free_dmabuf; 4724 return; 4725 4726 out_free_dmabuf: 4727 kfree(mp); 4728 out_free_pmb: 4729 mempool_free(pmb, phba->mbox_mem_pool); 4730 } 4731 4732 /** 4733 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4734 * @phba: pointer to lpfc hba data structure. 4735 * @acqe_fc: pointer to the async SLI completion queue entry. 4736 * 4737 * This routine is to handle the SLI4 asynchronous SLI events. 4738 **/ 4739 static void 4740 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4741 { 4742 char port_name; 4743 char message[128]; 4744 uint8_t status; 4745 uint8_t evt_type; 4746 uint8_t operational = 0; 4747 struct temp_event temp_event_data; 4748 struct lpfc_acqe_misconfigured_event *misconfigured; 4749 struct Scsi_Host *shost; 4750 4751 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4752 4753 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4754 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4755 "x%08x SLI Event Type:%d\n", 4756 acqe_sli->event_data1, acqe_sli->event_data2, 4757 evt_type); 4758 4759 port_name = phba->Port[0]; 4760 if (port_name == 0x00) 4761 port_name = '?'; /* get port name is empty */ 4762 4763 switch (evt_type) { 4764 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4765 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4766 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4767 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4768 4769 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4770 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4771 acqe_sli->event_data1, port_name); 4772 4773 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4774 shost = lpfc_shost_from_vport(phba->pport); 4775 fc_host_post_vendor_event(shost, fc_get_event_number(), 4776 sizeof(temp_event_data), 4777 (char *)&temp_event_data, 4778 SCSI_NL_VID_TYPE_PCI 4779 | PCI_VENDOR_ID_EMULEX); 4780 break; 4781 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4782 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4783 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4784 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4785 4786 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4787 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4788 acqe_sli->event_data1, port_name); 4789 4790 shost = lpfc_shost_from_vport(phba->pport); 4791 fc_host_post_vendor_event(shost, fc_get_event_number(), 4792 sizeof(temp_event_data), 4793 (char *)&temp_event_data, 4794 SCSI_NL_VID_TYPE_PCI 4795 | PCI_VENDOR_ID_EMULEX); 4796 break; 4797 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4798 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4799 &acqe_sli->event_data1; 4800 4801 /* fetch the status for this port */ 4802 switch (phba->sli4_hba.lnk_info.lnk_no) { 4803 case LPFC_LINK_NUMBER_0: 4804 status = bf_get(lpfc_sli_misconfigured_port0_state, 4805 &misconfigured->theEvent); 4806 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4807 &misconfigured->theEvent); 4808 break; 4809 case LPFC_LINK_NUMBER_1: 4810 status = bf_get(lpfc_sli_misconfigured_port1_state, 4811 &misconfigured->theEvent); 4812 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4813 &misconfigured->theEvent); 4814 break; 4815 case LPFC_LINK_NUMBER_2: 4816 status = bf_get(lpfc_sli_misconfigured_port2_state, 4817 &misconfigured->theEvent); 4818 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4819 &misconfigured->theEvent); 4820 break; 4821 case LPFC_LINK_NUMBER_3: 4822 status = bf_get(lpfc_sli_misconfigured_port3_state, 4823 &misconfigured->theEvent); 4824 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4825 &misconfigured->theEvent); 4826 break; 4827 default: 4828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4829 "3296 " 4830 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4831 "event: Invalid link %d", 4832 phba->sli4_hba.lnk_info.lnk_no); 4833 return; 4834 } 4835 4836 /* Skip if optic state unchanged */ 4837 if (phba->sli4_hba.lnk_info.optic_state == status) 4838 return; 4839 4840 switch (status) { 4841 case LPFC_SLI_EVENT_STATUS_VALID: 4842 sprintf(message, "Physical Link is functional"); 4843 break; 4844 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4845 sprintf(message, "Optics faulted/incorrectly " 4846 "installed/not installed - Reseat optics, " 4847 "if issue not resolved, replace."); 4848 break; 4849 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4850 sprintf(message, 4851 "Optics of two types installed - Remove one " 4852 "optic or install matching pair of optics."); 4853 break; 4854 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4855 sprintf(message, "Incompatible optics - Replace with " 4856 "compatible optics for card to function."); 4857 break; 4858 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4859 sprintf(message, "Unqualified optics - Replace with " 4860 "Avago optics for Warranty and Technical " 4861 "Support - Link is%s operational", 4862 (operational) ? " not" : ""); 4863 break; 4864 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4865 sprintf(message, "Uncertified optics - Replace with " 4866 "Avago-certified optics to enable link " 4867 "operation - Link is%s operational", 4868 (operational) ? " not" : ""); 4869 break; 4870 default: 4871 /* firmware is reporting a status we don't know about */ 4872 sprintf(message, "Unknown event status x%02x", status); 4873 break; 4874 } 4875 phba->sli4_hba.lnk_info.optic_state = status; 4876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4877 "3176 Port Name %c %s\n", port_name, message); 4878 break; 4879 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4880 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4881 "3192 Remote DPort Test Initiated - " 4882 "Event Data1:x%08x Event Data2: x%08x\n", 4883 acqe_sli->event_data1, acqe_sli->event_data2); 4884 break; 4885 default: 4886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4887 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4888 "x%08x SLI Event Type:%d\n", 4889 acqe_sli->event_data1, acqe_sli->event_data2, 4890 evt_type); 4891 break; 4892 } 4893 } 4894 4895 /** 4896 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4897 * @vport: pointer to vport data structure. 4898 * 4899 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4900 * response to a CVL event. 4901 * 4902 * Return the pointer to the ndlp with the vport if successful, otherwise 4903 * return NULL. 4904 **/ 4905 static struct lpfc_nodelist * 4906 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4907 { 4908 struct lpfc_nodelist *ndlp; 4909 struct Scsi_Host *shost; 4910 struct lpfc_hba *phba; 4911 4912 if (!vport) 4913 return NULL; 4914 phba = vport->phba; 4915 if (!phba) 4916 return NULL; 4917 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4918 if (!ndlp) { 4919 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4920 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4921 if (!ndlp) 4922 return 0; 4923 /* Set the node type */ 4924 ndlp->nlp_type |= NLP_FABRIC; 4925 /* Put ndlp onto node list */ 4926 lpfc_enqueue_node(vport, ndlp); 4927 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4928 /* re-setup ndlp without removing from node list */ 4929 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4930 if (!ndlp) 4931 return 0; 4932 } 4933 if ((phba->pport->port_state < LPFC_FLOGI) && 4934 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4935 return NULL; 4936 /* If virtual link is not yet instantiated ignore CVL */ 4937 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4938 && (vport->port_state != LPFC_VPORT_FAILED)) 4939 return NULL; 4940 shost = lpfc_shost_from_vport(vport); 4941 if (!shost) 4942 return NULL; 4943 lpfc_linkdown_port(vport); 4944 lpfc_cleanup_pending_mbox(vport); 4945 spin_lock_irq(shost->host_lock); 4946 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4947 spin_unlock_irq(shost->host_lock); 4948 4949 return ndlp; 4950 } 4951 4952 /** 4953 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4954 * @vport: pointer to lpfc hba data structure. 4955 * 4956 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4957 * response to a FCF dead event. 4958 **/ 4959 static void 4960 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4961 { 4962 struct lpfc_vport **vports; 4963 int i; 4964 4965 vports = lpfc_create_vport_work_array(phba); 4966 if (vports) 4967 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4968 lpfc_sli4_perform_vport_cvl(vports[i]); 4969 lpfc_destroy_vport_work_array(phba, vports); 4970 } 4971 4972 /** 4973 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4974 * @phba: pointer to lpfc hba data structure. 4975 * @acqe_link: pointer to the async fcoe completion queue entry. 4976 * 4977 * This routine is to handle the SLI4 asynchronous fcoe event. 4978 **/ 4979 static void 4980 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4981 struct lpfc_acqe_fip *acqe_fip) 4982 { 4983 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4984 int rc; 4985 struct lpfc_vport *vport; 4986 struct lpfc_nodelist *ndlp; 4987 struct Scsi_Host *shost; 4988 int active_vlink_present; 4989 struct lpfc_vport **vports; 4990 int i; 4991 4992 phba->fc_eventTag = acqe_fip->event_tag; 4993 phba->fcoe_eventtag = acqe_fip->event_tag; 4994 switch (event_type) { 4995 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4996 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4997 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4998 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4999 LOG_DISCOVERY, 5000 "2546 New FCF event, evt_tag:x%x, " 5001 "index:x%x\n", 5002 acqe_fip->event_tag, 5003 acqe_fip->index); 5004 else 5005 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 5006 LOG_DISCOVERY, 5007 "2788 FCF param modified event, " 5008 "evt_tag:x%x, index:x%x\n", 5009 acqe_fip->event_tag, 5010 acqe_fip->index); 5011 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5012 /* 5013 * During period of FCF discovery, read the FCF 5014 * table record indexed by the event to update 5015 * FCF roundrobin failover eligible FCF bmask. 5016 */ 5017 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5018 LOG_DISCOVERY, 5019 "2779 Read FCF (x%x) for updating " 5020 "roundrobin FCF failover bmask\n", 5021 acqe_fip->index); 5022 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 5023 } 5024 5025 /* If the FCF discovery is in progress, do nothing. */ 5026 spin_lock_irq(&phba->hbalock); 5027 if (phba->hba_flag & FCF_TS_INPROG) { 5028 spin_unlock_irq(&phba->hbalock); 5029 break; 5030 } 5031 /* If fast FCF failover rescan event is pending, do nothing */ 5032 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 5033 spin_unlock_irq(&phba->hbalock); 5034 break; 5035 } 5036 5037 /* If the FCF has been in discovered state, do nothing. */ 5038 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5039 spin_unlock_irq(&phba->hbalock); 5040 break; 5041 } 5042 spin_unlock_irq(&phba->hbalock); 5043 5044 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5045 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5046 "2770 Start FCF table scan per async FCF " 5047 "event, evt_tag:x%x, index:x%x\n", 5048 acqe_fip->event_tag, acqe_fip->index); 5049 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5050 LPFC_FCOE_FCF_GET_FIRST); 5051 if (rc) 5052 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5053 "2547 Issue FCF scan read FCF mailbox " 5054 "command failed (x%x)\n", rc); 5055 break; 5056 5057 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5058 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5059 "2548 FCF Table full count 0x%x tag 0x%x\n", 5060 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5061 acqe_fip->event_tag); 5062 break; 5063 5064 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5065 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5066 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5067 "2549 FCF (x%x) disconnected from network, " 5068 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5069 /* 5070 * If we are in the middle of FCF failover process, clear 5071 * the corresponding FCF bit in the roundrobin bitmap. 5072 */ 5073 spin_lock_irq(&phba->hbalock); 5074 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5075 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5076 spin_unlock_irq(&phba->hbalock); 5077 /* Update FLOGI FCF failover eligible FCF bmask */ 5078 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5079 break; 5080 } 5081 spin_unlock_irq(&phba->hbalock); 5082 5083 /* If the event is not for currently used fcf do nothing */ 5084 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5085 break; 5086 5087 /* 5088 * Otherwise, request the port to rediscover the entire FCF 5089 * table for a fast recovery from case that the current FCF 5090 * is no longer valid as we are not in the middle of FCF 5091 * failover process already. 5092 */ 5093 spin_lock_irq(&phba->hbalock); 5094 /* Mark the fast failover process in progress */ 5095 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5096 spin_unlock_irq(&phba->hbalock); 5097 5098 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5099 "2771 Start FCF fast failover process due to " 5100 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5101 "\n", acqe_fip->event_tag, acqe_fip->index); 5102 rc = lpfc_sli4_redisc_fcf_table(phba); 5103 if (rc) { 5104 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5105 LOG_DISCOVERY, 5106 "2772 Issue FCF rediscover mabilbox " 5107 "command failed, fail through to FCF " 5108 "dead event\n"); 5109 spin_lock_irq(&phba->hbalock); 5110 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5111 spin_unlock_irq(&phba->hbalock); 5112 /* 5113 * Last resort will fail over by treating this 5114 * as a link down to FCF registration. 5115 */ 5116 lpfc_sli4_fcf_dead_failthrough(phba); 5117 } else { 5118 /* Reset FCF roundrobin bmask for new discovery */ 5119 lpfc_sli4_clear_fcf_rr_bmask(phba); 5120 /* 5121 * Handling fast FCF failover to a DEAD FCF event is 5122 * considered equalivant to receiving CVL to all vports. 5123 */ 5124 lpfc_sli4_perform_all_vport_cvl(phba); 5125 } 5126 break; 5127 case LPFC_FIP_EVENT_TYPE_CVL: 5128 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5129 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5130 "2718 Clear Virtual Link Received for VPI 0x%x" 5131 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5132 5133 vport = lpfc_find_vport_by_vpid(phba, 5134 acqe_fip->index); 5135 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5136 if (!ndlp) 5137 break; 5138 active_vlink_present = 0; 5139 5140 vports = lpfc_create_vport_work_array(phba); 5141 if (vports) { 5142 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5143 i++) { 5144 if ((!(vports[i]->fc_flag & 5145 FC_VPORT_CVL_RCVD)) && 5146 (vports[i]->port_state > LPFC_FDISC)) { 5147 active_vlink_present = 1; 5148 break; 5149 } 5150 } 5151 lpfc_destroy_vport_work_array(phba, vports); 5152 } 5153 5154 /* 5155 * Don't re-instantiate if vport is marked for deletion. 5156 * If we are here first then vport_delete is going to wait 5157 * for discovery to complete. 5158 */ 5159 if (!(vport->load_flag & FC_UNLOADING) && 5160 active_vlink_present) { 5161 /* 5162 * If there are other active VLinks present, 5163 * re-instantiate the Vlink using FDISC. 5164 */ 5165 mod_timer(&ndlp->nlp_delayfunc, 5166 jiffies + msecs_to_jiffies(1000)); 5167 shost = lpfc_shost_from_vport(vport); 5168 spin_lock_irq(shost->host_lock); 5169 ndlp->nlp_flag |= NLP_DELAY_TMO; 5170 spin_unlock_irq(shost->host_lock); 5171 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5172 vport->port_state = LPFC_FDISC; 5173 } else { 5174 /* 5175 * Otherwise, we request port to rediscover 5176 * the entire FCF table for a fast recovery 5177 * from possible case that the current FCF 5178 * is no longer valid if we are not already 5179 * in the FCF failover process. 5180 */ 5181 spin_lock_irq(&phba->hbalock); 5182 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5183 spin_unlock_irq(&phba->hbalock); 5184 break; 5185 } 5186 /* Mark the fast failover process in progress */ 5187 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5188 spin_unlock_irq(&phba->hbalock); 5189 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5190 LOG_DISCOVERY, 5191 "2773 Start FCF failover per CVL, " 5192 "evt_tag:x%x\n", acqe_fip->event_tag); 5193 rc = lpfc_sli4_redisc_fcf_table(phba); 5194 if (rc) { 5195 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5196 LOG_DISCOVERY, 5197 "2774 Issue FCF rediscover " 5198 "mabilbox command failed, " 5199 "through to CVL event\n"); 5200 spin_lock_irq(&phba->hbalock); 5201 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5202 spin_unlock_irq(&phba->hbalock); 5203 /* 5204 * Last resort will be re-try on the 5205 * the current registered FCF entry. 5206 */ 5207 lpfc_retry_pport_discovery(phba); 5208 } else 5209 /* 5210 * Reset FCF roundrobin bmask for new 5211 * discovery. 5212 */ 5213 lpfc_sli4_clear_fcf_rr_bmask(phba); 5214 } 5215 break; 5216 default: 5217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5218 "0288 Unknown FCoE event type 0x%x event tag " 5219 "0x%x\n", event_type, acqe_fip->event_tag); 5220 break; 5221 } 5222 } 5223 5224 /** 5225 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5226 * @phba: pointer to lpfc hba data structure. 5227 * @acqe_link: pointer to the async dcbx completion queue entry. 5228 * 5229 * This routine is to handle the SLI4 asynchronous dcbx event. 5230 **/ 5231 static void 5232 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5233 struct lpfc_acqe_dcbx *acqe_dcbx) 5234 { 5235 phba->fc_eventTag = acqe_dcbx->event_tag; 5236 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5237 "0290 The SLI4 DCBX asynchronous event is not " 5238 "handled yet\n"); 5239 } 5240 5241 /** 5242 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5243 * @phba: pointer to lpfc hba data structure. 5244 * @acqe_link: pointer to the async grp5 completion queue entry. 5245 * 5246 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5247 * is an asynchronous notified of a logical link speed change. The Port 5248 * reports the logical link speed in units of 10Mbps. 5249 **/ 5250 static void 5251 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5252 struct lpfc_acqe_grp5 *acqe_grp5) 5253 { 5254 uint16_t prev_ll_spd; 5255 5256 phba->fc_eventTag = acqe_grp5->event_tag; 5257 phba->fcoe_eventtag = acqe_grp5->event_tag; 5258 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5259 phba->sli4_hba.link_state.logical_speed = 5260 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5261 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5262 "2789 GRP5 Async Event: Updating logical link speed " 5263 "from %dMbps to %dMbps\n", prev_ll_spd, 5264 phba->sli4_hba.link_state.logical_speed); 5265 } 5266 5267 /** 5268 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5269 * @phba: pointer to lpfc hba data structure. 5270 * 5271 * This routine is invoked by the worker thread to process all the pending 5272 * SLI4 asynchronous events. 5273 **/ 5274 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5275 { 5276 struct lpfc_cq_event *cq_event; 5277 5278 /* First, declare the async event has been handled */ 5279 spin_lock_irq(&phba->hbalock); 5280 phba->hba_flag &= ~ASYNC_EVENT; 5281 spin_unlock_irq(&phba->hbalock); 5282 /* Now, handle all the async events */ 5283 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5284 /* Get the first event from the head of the event queue */ 5285 spin_lock_irq(&phba->hbalock); 5286 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5287 cq_event, struct lpfc_cq_event, list); 5288 spin_unlock_irq(&phba->hbalock); 5289 /* Process the asynchronous event */ 5290 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5291 case LPFC_TRAILER_CODE_LINK: 5292 lpfc_sli4_async_link_evt(phba, 5293 &cq_event->cqe.acqe_link); 5294 break; 5295 case LPFC_TRAILER_CODE_FCOE: 5296 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5297 break; 5298 case LPFC_TRAILER_CODE_DCBX: 5299 lpfc_sli4_async_dcbx_evt(phba, 5300 &cq_event->cqe.acqe_dcbx); 5301 break; 5302 case LPFC_TRAILER_CODE_GRP5: 5303 lpfc_sli4_async_grp5_evt(phba, 5304 &cq_event->cqe.acqe_grp5); 5305 break; 5306 case LPFC_TRAILER_CODE_FC: 5307 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5308 break; 5309 case LPFC_TRAILER_CODE_SLI: 5310 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5311 break; 5312 default: 5313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5314 "1804 Invalid asynchrous event code: " 5315 "x%x\n", bf_get(lpfc_trailer_code, 5316 &cq_event->cqe.mcqe_cmpl)); 5317 break; 5318 } 5319 /* Free the completion event processed to the free pool */ 5320 lpfc_sli4_cq_event_release(phba, cq_event); 5321 } 5322 } 5323 5324 /** 5325 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5326 * @phba: pointer to lpfc hba data structure. 5327 * 5328 * This routine is invoked by the worker thread to process FCF table 5329 * rediscovery pending completion event. 5330 **/ 5331 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5332 { 5333 int rc; 5334 5335 spin_lock_irq(&phba->hbalock); 5336 /* Clear FCF rediscovery timeout event */ 5337 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5338 /* Clear driver fast failover FCF record flag */ 5339 phba->fcf.failover_rec.flag = 0; 5340 /* Set state for FCF fast failover */ 5341 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5342 spin_unlock_irq(&phba->hbalock); 5343 5344 /* Scan FCF table from the first entry to re-discover SAN */ 5345 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5346 "2777 Start post-quiescent FCF table scan\n"); 5347 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5348 if (rc) 5349 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5350 "2747 Issue FCF scan read FCF mailbox " 5351 "command failed 0x%x\n", rc); 5352 } 5353 5354 /** 5355 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5356 * @phba: pointer to lpfc hba data structure. 5357 * @dev_grp: The HBA PCI-Device group number. 5358 * 5359 * This routine is invoked to set up the per HBA PCI-Device group function 5360 * API jump table entries. 5361 * 5362 * Return: 0 if success, otherwise -ENODEV 5363 **/ 5364 int 5365 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5366 { 5367 int rc; 5368 5369 /* Set up lpfc PCI-device group */ 5370 phba->pci_dev_grp = dev_grp; 5371 5372 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5373 if (dev_grp == LPFC_PCI_DEV_OC) 5374 phba->sli_rev = LPFC_SLI_REV4; 5375 5376 /* Set up device INIT API function jump table */ 5377 rc = lpfc_init_api_table_setup(phba, dev_grp); 5378 if (rc) 5379 return -ENODEV; 5380 /* Set up SCSI API function jump table */ 5381 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5382 if (rc) 5383 return -ENODEV; 5384 /* Set up SLI API function jump table */ 5385 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5386 if (rc) 5387 return -ENODEV; 5388 /* Set up MBOX API function jump table */ 5389 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5390 if (rc) 5391 return -ENODEV; 5392 5393 return 0; 5394 } 5395 5396 /** 5397 * lpfc_log_intr_mode - Log the active interrupt mode 5398 * @phba: pointer to lpfc hba data structure. 5399 * @intr_mode: active interrupt mode adopted. 5400 * 5401 * This routine it invoked to log the currently used active interrupt mode 5402 * to the device. 5403 **/ 5404 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5405 { 5406 switch (intr_mode) { 5407 case 0: 5408 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5409 "0470 Enable INTx interrupt mode.\n"); 5410 break; 5411 case 1: 5412 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5413 "0481 Enabled MSI interrupt mode.\n"); 5414 break; 5415 case 2: 5416 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5417 "0480 Enabled MSI-X interrupt mode.\n"); 5418 break; 5419 default: 5420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5421 "0482 Illegal interrupt mode.\n"); 5422 break; 5423 } 5424 return; 5425 } 5426 5427 /** 5428 * lpfc_enable_pci_dev - Enable a generic PCI device. 5429 * @phba: pointer to lpfc hba data structure. 5430 * 5431 * This routine is invoked to enable the PCI device that is common to all 5432 * PCI devices. 5433 * 5434 * Return codes 5435 * 0 - successful 5436 * other values - error 5437 **/ 5438 static int 5439 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5440 { 5441 struct pci_dev *pdev; 5442 5443 /* Obtain PCI device reference */ 5444 if (!phba->pcidev) 5445 goto out_error; 5446 else 5447 pdev = phba->pcidev; 5448 /* Enable PCI device */ 5449 if (pci_enable_device_mem(pdev)) 5450 goto out_error; 5451 /* Request PCI resource for the device */ 5452 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5453 goto out_disable_device; 5454 /* Set up device as PCI master and save state for EEH */ 5455 pci_set_master(pdev); 5456 pci_try_set_mwi(pdev); 5457 pci_save_state(pdev); 5458 5459 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5460 if (pci_is_pcie(pdev)) 5461 pdev->needs_freset = 1; 5462 5463 return 0; 5464 5465 out_disable_device: 5466 pci_disable_device(pdev); 5467 out_error: 5468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5469 "1401 Failed to enable pci device\n"); 5470 return -ENODEV; 5471 } 5472 5473 /** 5474 * lpfc_disable_pci_dev - Disable a generic PCI device. 5475 * @phba: pointer to lpfc hba data structure. 5476 * 5477 * This routine is invoked to disable the PCI device that is common to all 5478 * PCI devices. 5479 **/ 5480 static void 5481 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5482 { 5483 struct pci_dev *pdev; 5484 5485 /* Obtain PCI device reference */ 5486 if (!phba->pcidev) 5487 return; 5488 else 5489 pdev = phba->pcidev; 5490 /* Release PCI resource and disable PCI device */ 5491 pci_release_mem_regions(pdev); 5492 pci_disable_device(pdev); 5493 5494 return; 5495 } 5496 5497 /** 5498 * lpfc_reset_hba - Reset a hba 5499 * @phba: pointer to lpfc hba data structure. 5500 * 5501 * This routine is invoked to reset a hba device. It brings the HBA 5502 * offline, performs a board restart, and then brings the board back 5503 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5504 * on outstanding mailbox commands. 5505 **/ 5506 void 5507 lpfc_reset_hba(struct lpfc_hba *phba) 5508 { 5509 /* If resets are disabled then set error state and return. */ 5510 if (!phba->cfg_enable_hba_reset) { 5511 phba->link_state = LPFC_HBA_ERROR; 5512 return; 5513 } 5514 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5515 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5516 else 5517 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5518 lpfc_offline(phba); 5519 lpfc_sli_brdrestart(phba); 5520 lpfc_online(phba); 5521 lpfc_unblock_mgmt_io(phba); 5522 } 5523 5524 /** 5525 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5526 * @phba: pointer to lpfc hba data structure. 5527 * 5528 * This function enables the PCI SR-IOV virtual functions to a physical 5529 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5530 * enable the number of virtual functions to the physical function. As 5531 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5532 * API call does not considered as an error condition for most of the device. 5533 **/ 5534 uint16_t 5535 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5536 { 5537 struct pci_dev *pdev = phba->pcidev; 5538 uint16_t nr_virtfn; 5539 int pos; 5540 5541 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5542 if (pos == 0) 5543 return 0; 5544 5545 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5546 return nr_virtfn; 5547 } 5548 5549 /** 5550 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5551 * @phba: pointer to lpfc hba data structure. 5552 * @nr_vfn: number of virtual functions to be enabled. 5553 * 5554 * This function enables the PCI SR-IOV virtual functions to a physical 5555 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5556 * enable the number of virtual functions to the physical function. As 5557 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5558 * API call does not considered as an error condition for most of the device. 5559 **/ 5560 int 5561 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5562 { 5563 struct pci_dev *pdev = phba->pcidev; 5564 uint16_t max_nr_vfn; 5565 int rc; 5566 5567 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5568 if (nr_vfn > max_nr_vfn) { 5569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5570 "3057 Requested vfs (%d) greater than " 5571 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5572 return -EINVAL; 5573 } 5574 5575 rc = pci_enable_sriov(pdev, nr_vfn); 5576 if (rc) { 5577 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5578 "2806 Failed to enable sriov on this device " 5579 "with vfn number nr_vf:%d, rc:%d\n", 5580 nr_vfn, rc); 5581 } else 5582 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5583 "2807 Successful enable sriov on this device " 5584 "with vfn number nr_vf:%d\n", nr_vfn); 5585 return rc; 5586 } 5587 5588 /** 5589 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5590 * @phba: pointer to lpfc hba data structure. 5591 * 5592 * This routine is invoked to set up the driver internal resources before the 5593 * device specific resource setup to support the HBA device it attached to. 5594 * 5595 * Return codes 5596 * 0 - successful 5597 * other values - error 5598 **/ 5599 static int 5600 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5601 { 5602 struct lpfc_sli *psli = &phba->sli; 5603 5604 /* 5605 * Driver resources common to all SLI revisions 5606 */ 5607 atomic_set(&phba->fast_event_count, 0); 5608 spin_lock_init(&phba->hbalock); 5609 5610 /* Initialize ndlp management spinlock */ 5611 spin_lock_init(&phba->ndlp_lock); 5612 5613 INIT_LIST_HEAD(&phba->port_list); 5614 INIT_LIST_HEAD(&phba->work_list); 5615 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5616 5617 /* Initialize the wait queue head for the kernel thread */ 5618 init_waitqueue_head(&phba->work_waitq); 5619 5620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5621 "1403 Protocols supported %s %s %s\n", 5622 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5623 "SCSI" : " "), 5624 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5625 "NVME" : " "), 5626 (phba->nvmet_support ? "NVMET" : " ")); 5627 5628 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5629 /* Initialize the scsi buffer list used by driver for scsi IO */ 5630 spin_lock_init(&phba->scsi_buf_list_get_lock); 5631 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5632 spin_lock_init(&phba->scsi_buf_list_put_lock); 5633 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5634 } 5635 5636 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5637 (phba->nvmet_support == 0)) { 5638 /* Initialize the NVME buffer list used by driver for NVME IO */ 5639 spin_lock_init(&phba->nvme_buf_list_get_lock); 5640 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5641 phba->get_nvme_bufs = 0; 5642 spin_lock_init(&phba->nvme_buf_list_put_lock); 5643 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5644 phba->put_nvme_bufs = 0; 5645 } 5646 5647 /* Initialize the fabric iocb list */ 5648 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5649 5650 /* Initialize list to save ELS buffers */ 5651 INIT_LIST_HEAD(&phba->elsbuf); 5652 5653 /* Initialize FCF connection rec list */ 5654 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5655 5656 /* Initialize OAS configuration list */ 5657 spin_lock_init(&phba->devicelock); 5658 INIT_LIST_HEAD(&phba->luns); 5659 5660 /* MBOX heartbeat timer */ 5661 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); 5662 /* Fabric block timer */ 5663 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); 5664 /* EA polling mode timer */ 5665 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); 5666 /* Heartbeat timer */ 5667 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); 5668 5669 return 0; 5670 } 5671 5672 /** 5673 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5674 * @phba: pointer to lpfc hba data structure. 5675 * 5676 * This routine is invoked to set up the driver internal resources specific to 5677 * support the SLI-3 HBA device it attached to. 5678 * 5679 * Return codes 5680 * 0 - successful 5681 * other values - error 5682 **/ 5683 static int 5684 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5685 { 5686 int rc; 5687 5688 /* 5689 * Initialize timers used by driver 5690 */ 5691 5692 /* FCP polling mode timer */ 5693 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); 5694 5695 /* Host attention work mask setup */ 5696 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5697 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5698 5699 /* Get all the module params for configuring this host */ 5700 lpfc_get_cfgparam(phba); 5701 /* Set up phase-1 common device driver resources */ 5702 5703 rc = lpfc_setup_driver_resource_phase1(phba); 5704 if (rc) 5705 return -ENODEV; 5706 5707 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5708 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5709 /* check for menlo minimum sg count */ 5710 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5711 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5712 } 5713 5714 if (!phba->sli.sli3_ring) 5715 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5716 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5717 if (!phba->sli.sli3_ring) 5718 return -ENOMEM; 5719 5720 /* 5721 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5722 * used to create the sg_dma_buf_pool must be dynamically calculated. 5723 */ 5724 5725 /* Initialize the host templates the configured values. */ 5726 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5727 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5728 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5729 5730 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5731 if (phba->cfg_enable_bg) { 5732 /* 5733 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5734 * the FCP rsp, and a BDE for each. Sice we have no control 5735 * over how many protection data segments the SCSI Layer 5736 * will hand us (ie: there could be one for every block 5737 * in the IO), we just allocate enough BDEs to accomidate 5738 * our max amount and we need to limit lpfc_sg_seg_cnt to 5739 * minimize the risk of running out. 5740 */ 5741 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5742 sizeof(struct fcp_rsp) + 5743 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5744 5745 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5746 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5747 5748 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5749 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5750 } else { 5751 /* 5752 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5753 * the FCP rsp, a BDE for each, and a BDE for up to 5754 * cfg_sg_seg_cnt data segments. 5755 */ 5756 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5757 sizeof(struct fcp_rsp) + 5758 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5759 5760 /* Total BDEs in BPL for scsi_sg_list */ 5761 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5762 } 5763 5764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5765 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5766 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5767 phba->cfg_total_seg_cnt); 5768 5769 phba->max_vpi = LPFC_MAX_VPI; 5770 /* This will be set to correct value after config_port mbox */ 5771 phba->max_vports = 0; 5772 5773 /* 5774 * Initialize the SLI Layer to run with lpfc HBAs. 5775 */ 5776 lpfc_sli_setup(phba); 5777 lpfc_sli_queue_init(phba); 5778 5779 /* Allocate device driver memory */ 5780 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5781 return -ENOMEM; 5782 5783 /* 5784 * Enable sr-iov virtual functions if supported and configured 5785 * through the module parameter. 5786 */ 5787 if (phba->cfg_sriov_nr_virtfn > 0) { 5788 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5789 phba->cfg_sriov_nr_virtfn); 5790 if (rc) { 5791 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5792 "2808 Requested number of SR-IOV " 5793 "virtual functions (%d) is not " 5794 "supported\n", 5795 phba->cfg_sriov_nr_virtfn); 5796 phba->cfg_sriov_nr_virtfn = 0; 5797 } 5798 } 5799 5800 return 0; 5801 } 5802 5803 /** 5804 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5805 * @phba: pointer to lpfc hba data structure. 5806 * 5807 * This routine is invoked to unset the driver internal resources set up 5808 * specific for supporting the SLI-3 HBA device it attached to. 5809 **/ 5810 static void 5811 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5812 { 5813 /* Free device driver memory allocated */ 5814 lpfc_mem_free_all(phba); 5815 5816 return; 5817 } 5818 5819 /** 5820 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5821 * @phba: pointer to lpfc hba data structure. 5822 * 5823 * This routine is invoked to set up the driver internal resources specific to 5824 * support the SLI-4 HBA device it attached to. 5825 * 5826 * Return codes 5827 * 0 - successful 5828 * other values - error 5829 **/ 5830 static int 5831 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5832 { 5833 LPFC_MBOXQ_t *mboxq; 5834 MAILBOX_t *mb; 5835 int rc, i, max_buf_size; 5836 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5837 struct lpfc_mqe *mqe; 5838 int longs; 5839 int fof_vectors = 0; 5840 int extra; 5841 uint64_t wwn; 5842 5843 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5844 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5845 phba->sli4_hba.curr_disp_cpu = 0; 5846 5847 /* Get all the module params for configuring this host */ 5848 lpfc_get_cfgparam(phba); 5849 5850 /* Set up phase-1 common device driver resources */ 5851 rc = lpfc_setup_driver_resource_phase1(phba); 5852 if (rc) 5853 return -ENODEV; 5854 5855 /* Before proceed, wait for POST done and device ready */ 5856 rc = lpfc_sli4_post_status_check(phba); 5857 if (rc) 5858 return -ENODEV; 5859 5860 /* 5861 * Initialize timers used by driver 5862 */ 5863 5864 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); 5865 5866 /* FCF rediscover timer */ 5867 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); 5868 5869 /* 5870 * Control structure for handling external multi-buffer mailbox 5871 * command pass-through. 5872 */ 5873 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5874 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5875 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5876 5877 phba->max_vpi = LPFC_MAX_VPI; 5878 5879 /* This will be set to correct value after the read_config mbox */ 5880 phba->max_vports = 0; 5881 5882 /* Program the default value of vlan_id and fc_map */ 5883 phba->valid_vlan = 0; 5884 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5885 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5886 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5887 5888 /* 5889 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5890 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5891 * The WQ create will allocate the ring. 5892 */ 5893 5894 /* 5895 * 1 for cmd, 1 for rsp, NVME adds an extra one 5896 * for boundary conditions in its max_sgl_segment template. 5897 */ 5898 extra = 2; 5899 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 5900 extra++; 5901 5902 /* 5903 * It doesn't matter what family our adapter is in, we are 5904 * limited to 2 Pages, 512 SGEs, for our SGL. 5905 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5906 */ 5907 max_buf_size = (2 * SLI4_PAGE_SIZE); 5908 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra) 5909 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra; 5910 5911 /* 5912 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5913 * used to create the sg_dma_buf_pool must be calculated. 5914 */ 5915 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) { 5916 /* 5917 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5918 * the FCP rsp, and a SGE. Sice we have no control 5919 * over how many protection segments the SCSI Layer 5920 * will hand us (ie: there could be one for every block 5921 * in the IO), just allocate enough SGEs to accomidate 5922 * our max amount and we need to limit lpfc_sg_seg_cnt 5923 * to minimize the risk of running out. 5924 */ 5925 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5926 sizeof(struct fcp_rsp) + max_buf_size; 5927 5928 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5929 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5930 5931 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5932 phba->cfg_sg_seg_cnt = 5933 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5934 } else { 5935 /* 5936 * The scsi_buf for a regular I/O holds the FCP cmnd, 5937 * the FCP rsp, a SGE for each, and a SGE for up to 5938 * cfg_sg_seg_cnt data segments. 5939 */ 5940 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5941 sizeof(struct fcp_rsp) + 5942 ((phba->cfg_sg_seg_cnt + extra) * 5943 sizeof(struct sli4_sge)); 5944 5945 /* Total SGEs for scsi_sg_list */ 5946 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra; 5947 5948 /* 5949 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only 5950 * need to post 1 page for the SGL. 5951 */ 5952 } 5953 5954 /* Initialize the host templates with the updated values. */ 5955 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5956 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5957 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5958 5959 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5960 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5961 else 5962 phba->cfg_sg_dma_buf_size = 5963 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5964 5965 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5966 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5967 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5968 phba->cfg_total_seg_cnt); 5969 5970 /* Initialize buffer queue management fields */ 5971 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5972 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5973 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5974 5975 /* 5976 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5977 */ 5978 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5979 /* Initialize the Abort scsi buffer list used by driver */ 5980 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5981 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5982 } 5983 5984 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5985 /* Initialize the Abort nvme buffer list used by driver */ 5986 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5987 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5988 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5989 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5990 } 5991 5992 /* This abort list used by worker thread */ 5993 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5994 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5995 5996 /* 5997 * Initialize driver internal slow-path work queues 5998 */ 5999 6000 /* Driver internel slow-path CQ Event pool */ 6001 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 6002 /* Response IOCB work queue list */ 6003 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 6004 /* Asynchronous event CQ Event work queue list */ 6005 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 6006 /* Fast-path XRI aborted CQ Event work queue list */ 6007 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 6008 /* Slow-path XRI aborted CQ Event work queue list */ 6009 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 6010 /* Receive queue CQ Event work queue list */ 6011 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 6012 6013 /* Initialize extent block lists. */ 6014 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 6015 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 6016 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 6017 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 6018 6019 /* Initialize mboxq lists. If the early init routines fail 6020 * these lists need to be correctly initialized. 6021 */ 6022 INIT_LIST_HEAD(&phba->sli.mboxq); 6023 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 6024 6025 /* initialize optic_state to 0xFF */ 6026 phba->sli4_hba.lnk_info.optic_state = 0xff; 6027 6028 /* Allocate device driver memory */ 6029 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 6030 if (rc) 6031 return -ENOMEM; 6032 6033 /* IF Type 2 ports get initialized now. */ 6034 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 6035 LPFC_SLI_INTF_IF_TYPE_2) { 6036 rc = lpfc_pci_function_reset(phba); 6037 if (unlikely(rc)) { 6038 rc = -ENODEV; 6039 goto out_free_mem; 6040 } 6041 phba->temp_sensor_support = 1; 6042 } 6043 6044 /* Create the bootstrap mailbox command */ 6045 rc = lpfc_create_bootstrap_mbox(phba); 6046 if (unlikely(rc)) 6047 goto out_free_mem; 6048 6049 /* Set up the host's endian order with the device. */ 6050 rc = lpfc_setup_endian_order(phba); 6051 if (unlikely(rc)) 6052 goto out_free_bsmbx; 6053 6054 /* Set up the hba's configuration parameters. */ 6055 rc = lpfc_sli4_read_config(phba); 6056 if (unlikely(rc)) 6057 goto out_free_bsmbx; 6058 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6059 if (unlikely(rc)) 6060 goto out_free_bsmbx; 6061 6062 /* IF Type 0 ports get initialized now. */ 6063 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6064 LPFC_SLI_INTF_IF_TYPE_0) { 6065 rc = lpfc_pci_function_reset(phba); 6066 if (unlikely(rc)) 6067 goto out_free_bsmbx; 6068 } 6069 6070 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6071 GFP_KERNEL); 6072 if (!mboxq) { 6073 rc = -ENOMEM; 6074 goto out_free_bsmbx; 6075 } 6076 6077 /* Check for NVMET being configured */ 6078 phba->nvmet_support = 0; 6079 if (lpfc_enable_nvmet_cnt) { 6080 6081 /* First get WWN of HBA instance */ 6082 lpfc_read_nv(phba, mboxq); 6083 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6084 if (rc != MBX_SUCCESS) { 6085 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6086 "6016 Mailbox failed , mbxCmd x%x " 6087 "READ_NV, mbxStatus x%x\n", 6088 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6089 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6090 mempool_free(mboxq, phba->mbox_mem_pool); 6091 rc = -EIO; 6092 goto out_free_bsmbx; 6093 } 6094 mb = &mboxq->u.mb; 6095 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6096 sizeof(uint64_t)); 6097 wwn = cpu_to_be64(wwn); 6098 phba->sli4_hba.wwnn.u.name = wwn; 6099 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6100 sizeof(uint64_t)); 6101 /* wwn is WWPN of HBA instance */ 6102 wwn = cpu_to_be64(wwn); 6103 phba->sli4_hba.wwpn.u.name = wwn; 6104 6105 /* Check to see if it matches any module parameter */ 6106 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6107 if (wwn == lpfc_enable_nvmet[i]) { 6108 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6109 if (lpfc_nvmet_mem_alloc(phba)) 6110 break; 6111 6112 phba->nvmet_support = 1; /* a match */ 6113 6114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6115 "6017 NVME Target %016llx\n", 6116 wwn); 6117 #else 6118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6119 "6021 Can't enable NVME Target." 6120 " NVME_TARGET_FC infrastructure" 6121 " is not in kernel\n"); 6122 #endif 6123 break; 6124 } 6125 } 6126 } 6127 6128 lpfc_nvme_mod_param_dep(phba); 6129 6130 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6131 lpfc_supported_pages(mboxq); 6132 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6133 if (!rc) { 6134 mqe = &mboxq->u.mqe; 6135 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6136 LPFC_MAX_SUPPORTED_PAGES); 6137 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6138 switch (pn_page[i]) { 6139 case LPFC_SLI4_PARAMETERS: 6140 phba->sli4_hba.pc_sli4_params.supported = 1; 6141 break; 6142 default: 6143 break; 6144 } 6145 } 6146 /* Read the port's SLI4 Parameters capabilities if supported. */ 6147 if (phba->sli4_hba.pc_sli4_params.supported) 6148 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6149 if (rc) { 6150 mempool_free(mboxq, phba->mbox_mem_pool); 6151 rc = -EIO; 6152 goto out_free_bsmbx; 6153 } 6154 } 6155 6156 /* 6157 * Get sli4 parameters that override parameters from Port capabilities. 6158 * If this call fails, it isn't critical unless the SLI4 parameters come 6159 * back in conflict. 6160 */ 6161 rc = lpfc_get_sli4_parameters(phba, mboxq); 6162 if (rc) { 6163 if (phba->sli4_hba.extents_in_use && 6164 phba->sli4_hba.rpi_hdrs_in_use) { 6165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6166 "2999 Unsupported SLI4 Parameters " 6167 "Extents and RPI headers enabled.\n"); 6168 } 6169 mempool_free(mboxq, phba->mbox_mem_pool); 6170 rc = -EIO; 6171 goto out_free_bsmbx; 6172 } 6173 6174 mempool_free(mboxq, phba->mbox_mem_pool); 6175 6176 /* Verify OAS is supported */ 6177 lpfc_sli4_oas_verify(phba); 6178 if (phba->cfg_fof) 6179 fof_vectors = 1; 6180 6181 /* Verify all the SLI4 queues */ 6182 rc = lpfc_sli4_queue_verify(phba); 6183 if (rc) 6184 goto out_free_bsmbx; 6185 6186 /* Create driver internal CQE event pool */ 6187 rc = lpfc_sli4_cq_event_pool_create(phba); 6188 if (rc) 6189 goto out_free_bsmbx; 6190 6191 /* Initialize sgl lists per host */ 6192 lpfc_init_sgl_list(phba); 6193 6194 /* Allocate and initialize active sgl array */ 6195 rc = lpfc_init_active_sgl_array(phba); 6196 if (rc) { 6197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6198 "1430 Failed to initialize sgl list.\n"); 6199 goto out_destroy_cq_event_pool; 6200 } 6201 rc = lpfc_sli4_init_rpi_hdrs(phba); 6202 if (rc) { 6203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6204 "1432 Failed to initialize rpi headers.\n"); 6205 goto out_free_active_sgl; 6206 } 6207 6208 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6209 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6210 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6211 GFP_KERNEL); 6212 if (!phba->fcf.fcf_rr_bmask) { 6213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6214 "2759 Failed allocate memory for FCF round " 6215 "robin failover bmask\n"); 6216 rc = -ENOMEM; 6217 goto out_remove_rpi_hdrs; 6218 } 6219 6220 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6221 sizeof(struct lpfc_hba_eq_hdl), 6222 GFP_KERNEL); 6223 if (!phba->sli4_hba.hba_eq_hdl) { 6224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6225 "2572 Failed allocate memory for " 6226 "fast-path per-EQ handle array\n"); 6227 rc = -ENOMEM; 6228 goto out_free_fcf_rr_bmask; 6229 } 6230 6231 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6232 sizeof(struct lpfc_vector_map_info), 6233 GFP_KERNEL); 6234 if (!phba->sli4_hba.cpu_map) { 6235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6236 "3327 Failed allocate memory for msi-x " 6237 "interrupt vector mapping\n"); 6238 rc = -ENOMEM; 6239 goto out_free_hba_eq_hdl; 6240 } 6241 if (lpfc_used_cpu == NULL) { 6242 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6243 GFP_KERNEL); 6244 if (!lpfc_used_cpu) { 6245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6246 "3335 Failed allocate memory for msi-x " 6247 "interrupt vector mapping\n"); 6248 kfree(phba->sli4_hba.cpu_map); 6249 rc = -ENOMEM; 6250 goto out_free_hba_eq_hdl; 6251 } 6252 for (i = 0; i < lpfc_present_cpu; i++) 6253 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6254 } 6255 6256 /* 6257 * Enable sr-iov virtual functions if supported and configured 6258 * through the module parameter. 6259 */ 6260 if (phba->cfg_sriov_nr_virtfn > 0) { 6261 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6262 phba->cfg_sriov_nr_virtfn); 6263 if (rc) { 6264 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6265 "3020 Requested number of SR-IOV " 6266 "virtual functions (%d) is not " 6267 "supported\n", 6268 phba->cfg_sriov_nr_virtfn); 6269 phba->cfg_sriov_nr_virtfn = 0; 6270 } 6271 } 6272 6273 return 0; 6274 6275 out_free_hba_eq_hdl: 6276 kfree(phba->sli4_hba.hba_eq_hdl); 6277 out_free_fcf_rr_bmask: 6278 kfree(phba->fcf.fcf_rr_bmask); 6279 out_remove_rpi_hdrs: 6280 lpfc_sli4_remove_rpi_hdrs(phba); 6281 out_free_active_sgl: 6282 lpfc_free_active_sgl(phba); 6283 out_destroy_cq_event_pool: 6284 lpfc_sli4_cq_event_pool_destroy(phba); 6285 out_free_bsmbx: 6286 lpfc_destroy_bootstrap_mbox(phba); 6287 out_free_mem: 6288 lpfc_mem_free(phba); 6289 return rc; 6290 } 6291 6292 /** 6293 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6294 * @phba: pointer to lpfc hba data structure. 6295 * 6296 * This routine is invoked to unset the driver internal resources set up 6297 * specific for supporting the SLI-4 HBA device it attached to. 6298 **/ 6299 static void 6300 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6301 { 6302 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6303 6304 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6305 kfree(phba->sli4_hba.cpu_map); 6306 phba->sli4_hba.num_present_cpu = 0; 6307 phba->sli4_hba.num_online_cpu = 0; 6308 phba->sli4_hba.curr_disp_cpu = 0; 6309 6310 /* Free memory allocated for fast-path work queue handles */ 6311 kfree(phba->sli4_hba.hba_eq_hdl); 6312 6313 /* Free the allocated rpi headers. */ 6314 lpfc_sli4_remove_rpi_hdrs(phba); 6315 lpfc_sli4_remove_rpis(phba); 6316 6317 /* Free eligible FCF index bmask */ 6318 kfree(phba->fcf.fcf_rr_bmask); 6319 6320 /* Free the ELS sgl list */ 6321 lpfc_free_active_sgl(phba); 6322 lpfc_free_els_sgl_list(phba); 6323 lpfc_free_nvmet_sgl_list(phba); 6324 6325 /* Free the completion queue EQ event pool */ 6326 lpfc_sli4_cq_event_release_all(phba); 6327 lpfc_sli4_cq_event_pool_destroy(phba); 6328 6329 /* Release resource identifiers. */ 6330 lpfc_sli4_dealloc_resource_identifiers(phba); 6331 6332 /* Free the bsmbx region. */ 6333 lpfc_destroy_bootstrap_mbox(phba); 6334 6335 /* Free the SLI Layer memory with SLI4 HBAs */ 6336 lpfc_mem_free_all(phba); 6337 6338 /* Free the current connect table */ 6339 list_for_each_entry_safe(conn_entry, next_conn_entry, 6340 &phba->fcf_conn_rec_list, list) { 6341 list_del_init(&conn_entry->list); 6342 kfree(conn_entry); 6343 } 6344 6345 return; 6346 } 6347 6348 /** 6349 * lpfc_init_api_table_setup - Set up init api function jump table 6350 * @phba: The hba struct for which this call is being executed. 6351 * @dev_grp: The HBA PCI-Device group number. 6352 * 6353 * This routine sets up the device INIT interface API function jump table 6354 * in @phba struct. 6355 * 6356 * Returns: 0 - success, -ENODEV - failure. 6357 **/ 6358 int 6359 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6360 { 6361 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6362 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6363 phba->lpfc_selective_reset = lpfc_selective_reset; 6364 switch (dev_grp) { 6365 case LPFC_PCI_DEV_LP: 6366 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6367 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6368 phba->lpfc_stop_port = lpfc_stop_port_s3; 6369 break; 6370 case LPFC_PCI_DEV_OC: 6371 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6372 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6373 phba->lpfc_stop_port = lpfc_stop_port_s4; 6374 break; 6375 default: 6376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6377 "1431 Invalid HBA PCI-device group: 0x%x\n", 6378 dev_grp); 6379 return -ENODEV; 6380 break; 6381 } 6382 return 0; 6383 } 6384 6385 /** 6386 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6387 * @phba: pointer to lpfc hba data structure. 6388 * 6389 * This routine is invoked to set up the driver internal resources after the 6390 * device specific resource setup to support the HBA device it attached to. 6391 * 6392 * Return codes 6393 * 0 - successful 6394 * other values - error 6395 **/ 6396 static int 6397 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6398 { 6399 int error; 6400 6401 /* Startup the kernel thread for this host adapter. */ 6402 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6403 "lpfc_worker_%d", phba->brd_no); 6404 if (IS_ERR(phba->worker_thread)) { 6405 error = PTR_ERR(phba->worker_thread); 6406 return error; 6407 } 6408 6409 /* workqueue for deferred irq use */ 6410 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0); 6411 6412 return 0; 6413 } 6414 6415 /** 6416 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6417 * @phba: pointer to lpfc hba data structure. 6418 * 6419 * This routine is invoked to unset the driver internal resources set up after 6420 * the device specific resource setup for supporting the HBA device it 6421 * attached to. 6422 **/ 6423 static void 6424 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6425 { 6426 if (phba->wq) { 6427 flush_workqueue(phba->wq); 6428 destroy_workqueue(phba->wq); 6429 phba->wq = NULL; 6430 } 6431 6432 /* Stop kernel worker thread */ 6433 kthread_stop(phba->worker_thread); 6434 } 6435 6436 /** 6437 * lpfc_free_iocb_list - Free iocb list. 6438 * @phba: pointer to lpfc hba data structure. 6439 * 6440 * This routine is invoked to free the driver's IOCB list and memory. 6441 **/ 6442 void 6443 lpfc_free_iocb_list(struct lpfc_hba *phba) 6444 { 6445 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6446 6447 spin_lock_irq(&phba->hbalock); 6448 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6449 &phba->lpfc_iocb_list, list) { 6450 list_del(&iocbq_entry->list); 6451 kfree(iocbq_entry); 6452 phba->total_iocbq_bufs--; 6453 } 6454 spin_unlock_irq(&phba->hbalock); 6455 6456 return; 6457 } 6458 6459 /** 6460 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6461 * @phba: pointer to lpfc hba data structure. 6462 * 6463 * This routine is invoked to allocate and initizlize the driver's IOCB 6464 * list and set up the IOCB tag array accordingly. 6465 * 6466 * Return codes 6467 * 0 - successful 6468 * other values - error 6469 **/ 6470 int 6471 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6472 { 6473 struct lpfc_iocbq *iocbq_entry = NULL; 6474 uint16_t iotag; 6475 int i; 6476 6477 /* Initialize and populate the iocb list per host. */ 6478 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6479 for (i = 0; i < iocb_count; i++) { 6480 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6481 if (iocbq_entry == NULL) { 6482 printk(KERN_ERR "%s: only allocated %d iocbs of " 6483 "expected %d count. Unloading driver.\n", 6484 __func__, i, LPFC_IOCB_LIST_CNT); 6485 goto out_free_iocbq; 6486 } 6487 6488 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6489 if (iotag == 0) { 6490 kfree(iocbq_entry); 6491 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6492 "Unloading driver.\n", __func__); 6493 goto out_free_iocbq; 6494 } 6495 iocbq_entry->sli4_lxritag = NO_XRI; 6496 iocbq_entry->sli4_xritag = NO_XRI; 6497 6498 spin_lock_irq(&phba->hbalock); 6499 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6500 phba->total_iocbq_bufs++; 6501 spin_unlock_irq(&phba->hbalock); 6502 } 6503 6504 return 0; 6505 6506 out_free_iocbq: 6507 lpfc_free_iocb_list(phba); 6508 6509 return -ENOMEM; 6510 } 6511 6512 /** 6513 * lpfc_free_sgl_list - Free a given sgl list. 6514 * @phba: pointer to lpfc hba data structure. 6515 * @sglq_list: pointer to the head of sgl list. 6516 * 6517 * This routine is invoked to free a give sgl list and memory. 6518 **/ 6519 void 6520 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6521 { 6522 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6523 6524 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6525 list_del(&sglq_entry->list); 6526 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6527 kfree(sglq_entry); 6528 } 6529 } 6530 6531 /** 6532 * lpfc_free_els_sgl_list - Free els sgl list. 6533 * @phba: pointer to lpfc hba data structure. 6534 * 6535 * This routine is invoked to free the driver's els sgl list and memory. 6536 **/ 6537 static void 6538 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6539 { 6540 LIST_HEAD(sglq_list); 6541 6542 /* Retrieve all els sgls from driver list */ 6543 spin_lock_irq(&phba->hbalock); 6544 spin_lock(&phba->sli4_hba.sgl_list_lock); 6545 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6546 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6547 spin_unlock_irq(&phba->hbalock); 6548 6549 /* Now free the sgl list */ 6550 lpfc_free_sgl_list(phba, &sglq_list); 6551 } 6552 6553 /** 6554 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6555 * @phba: pointer to lpfc hba data structure. 6556 * 6557 * This routine is invoked to free the driver's nvmet sgl list and memory. 6558 **/ 6559 static void 6560 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6561 { 6562 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6563 LIST_HEAD(sglq_list); 6564 6565 /* Retrieve all nvmet sgls from driver list */ 6566 spin_lock_irq(&phba->hbalock); 6567 spin_lock(&phba->sli4_hba.sgl_list_lock); 6568 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6569 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6570 spin_unlock_irq(&phba->hbalock); 6571 6572 /* Now free the sgl list */ 6573 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6574 list_del(&sglq_entry->list); 6575 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6576 kfree(sglq_entry); 6577 } 6578 6579 /* Update the nvmet_xri_cnt to reflect no current sgls. 6580 * The next initialization cycle sets the count and allocates 6581 * the sgls over again. 6582 */ 6583 phba->sli4_hba.nvmet_xri_cnt = 0; 6584 } 6585 6586 /** 6587 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6588 * @phba: pointer to lpfc hba data structure. 6589 * 6590 * This routine is invoked to allocate the driver's active sgl memory. 6591 * This array will hold the sglq_entry's for active IOs. 6592 **/ 6593 static int 6594 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6595 { 6596 int size; 6597 size = sizeof(struct lpfc_sglq *); 6598 size *= phba->sli4_hba.max_cfg_param.max_xri; 6599 6600 phba->sli4_hba.lpfc_sglq_active_list = 6601 kzalloc(size, GFP_KERNEL); 6602 if (!phba->sli4_hba.lpfc_sglq_active_list) 6603 return -ENOMEM; 6604 return 0; 6605 } 6606 6607 /** 6608 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6609 * @phba: pointer to lpfc hba data structure. 6610 * 6611 * This routine is invoked to walk through the array of active sglq entries 6612 * and free all of the resources. 6613 * This is just a place holder for now. 6614 **/ 6615 static void 6616 lpfc_free_active_sgl(struct lpfc_hba *phba) 6617 { 6618 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6619 } 6620 6621 /** 6622 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6623 * @phba: pointer to lpfc hba data structure. 6624 * 6625 * This routine is invoked to allocate and initizlize the driver's sgl 6626 * list and set up the sgl xritag tag array accordingly. 6627 * 6628 **/ 6629 static void 6630 lpfc_init_sgl_list(struct lpfc_hba *phba) 6631 { 6632 /* Initialize and populate the sglq list per host/VF. */ 6633 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6634 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6635 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6636 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6637 6638 /* els xri-sgl book keeping */ 6639 phba->sli4_hba.els_xri_cnt = 0; 6640 6641 /* scsi xri-buffer book keeping */ 6642 phba->sli4_hba.scsi_xri_cnt = 0; 6643 6644 /* nvme xri-buffer book keeping */ 6645 phba->sli4_hba.nvme_xri_cnt = 0; 6646 } 6647 6648 /** 6649 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6650 * @phba: pointer to lpfc hba data structure. 6651 * 6652 * This routine is invoked to post rpi header templates to the 6653 * port for those SLI4 ports that do not support extents. This routine 6654 * posts a PAGE_SIZE memory region to the port to hold up to 6655 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6656 * and should be called only when interrupts are disabled. 6657 * 6658 * Return codes 6659 * 0 - successful 6660 * -ERROR - otherwise. 6661 **/ 6662 int 6663 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6664 { 6665 int rc = 0; 6666 struct lpfc_rpi_hdr *rpi_hdr; 6667 6668 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6669 if (!phba->sli4_hba.rpi_hdrs_in_use) 6670 return rc; 6671 if (phba->sli4_hba.extents_in_use) 6672 return -EIO; 6673 6674 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6675 if (!rpi_hdr) { 6676 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6677 "0391 Error during rpi post operation\n"); 6678 lpfc_sli4_remove_rpis(phba); 6679 rc = -ENODEV; 6680 } 6681 6682 return rc; 6683 } 6684 6685 /** 6686 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6687 * @phba: pointer to lpfc hba data structure. 6688 * 6689 * This routine is invoked to allocate a single 4KB memory region to 6690 * support rpis and stores them in the phba. This single region 6691 * provides support for up to 64 rpis. The region is used globally 6692 * by the device. 6693 * 6694 * Returns: 6695 * A valid rpi hdr on success. 6696 * A NULL pointer on any failure. 6697 **/ 6698 struct lpfc_rpi_hdr * 6699 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6700 { 6701 uint16_t rpi_limit, curr_rpi_range; 6702 struct lpfc_dmabuf *dmabuf; 6703 struct lpfc_rpi_hdr *rpi_hdr; 6704 6705 /* 6706 * If the SLI4 port supports extents, posting the rpi header isn't 6707 * required. Set the expected maximum count and let the actual value 6708 * get set when extents are fully allocated. 6709 */ 6710 if (!phba->sli4_hba.rpi_hdrs_in_use) 6711 return NULL; 6712 if (phba->sli4_hba.extents_in_use) 6713 return NULL; 6714 6715 /* The limit on the logical index is just the max_rpi count. */ 6716 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6717 6718 spin_lock_irq(&phba->hbalock); 6719 /* 6720 * Establish the starting RPI in this header block. The starting 6721 * rpi is normalized to a zero base because the physical rpi is 6722 * port based. 6723 */ 6724 curr_rpi_range = phba->sli4_hba.next_rpi; 6725 spin_unlock_irq(&phba->hbalock); 6726 6727 /* Reached full RPI range */ 6728 if (curr_rpi_range == rpi_limit) 6729 return NULL; 6730 6731 /* 6732 * First allocate the protocol header region for the port. The 6733 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6734 */ 6735 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6736 if (!dmabuf) 6737 return NULL; 6738 6739 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6740 LPFC_HDR_TEMPLATE_SIZE, 6741 &dmabuf->phys, GFP_KERNEL); 6742 if (!dmabuf->virt) { 6743 rpi_hdr = NULL; 6744 goto err_free_dmabuf; 6745 } 6746 6747 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6748 rpi_hdr = NULL; 6749 goto err_free_coherent; 6750 } 6751 6752 /* Save the rpi header data for cleanup later. */ 6753 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6754 if (!rpi_hdr) 6755 goto err_free_coherent; 6756 6757 rpi_hdr->dmabuf = dmabuf; 6758 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6759 rpi_hdr->page_count = 1; 6760 spin_lock_irq(&phba->hbalock); 6761 6762 /* The rpi_hdr stores the logical index only. */ 6763 rpi_hdr->start_rpi = curr_rpi_range; 6764 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6765 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6766 6767 spin_unlock_irq(&phba->hbalock); 6768 return rpi_hdr; 6769 6770 err_free_coherent: 6771 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6772 dmabuf->virt, dmabuf->phys); 6773 err_free_dmabuf: 6774 kfree(dmabuf); 6775 return NULL; 6776 } 6777 6778 /** 6779 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6780 * @phba: pointer to lpfc hba data structure. 6781 * 6782 * This routine is invoked to remove all memory resources allocated 6783 * to support rpis for SLI4 ports not supporting extents. This routine 6784 * presumes the caller has released all rpis consumed by fabric or port 6785 * logins and is prepared to have the header pages removed. 6786 **/ 6787 void 6788 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6789 { 6790 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6791 6792 if (!phba->sli4_hba.rpi_hdrs_in_use) 6793 goto exit; 6794 6795 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6796 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6797 list_del(&rpi_hdr->list); 6798 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6799 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6800 kfree(rpi_hdr->dmabuf); 6801 kfree(rpi_hdr); 6802 } 6803 exit: 6804 /* There are no rpis available to the port now. */ 6805 phba->sli4_hba.next_rpi = 0; 6806 } 6807 6808 /** 6809 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6810 * @pdev: pointer to pci device data structure. 6811 * 6812 * This routine is invoked to allocate the driver hba data structure for an 6813 * HBA device. If the allocation is successful, the phba reference to the 6814 * PCI device data structure is set. 6815 * 6816 * Return codes 6817 * pointer to @phba - successful 6818 * NULL - error 6819 **/ 6820 static struct lpfc_hba * 6821 lpfc_hba_alloc(struct pci_dev *pdev) 6822 { 6823 struct lpfc_hba *phba; 6824 6825 /* Allocate memory for HBA structure */ 6826 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6827 if (!phba) { 6828 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6829 return NULL; 6830 } 6831 6832 /* Set reference to PCI device in HBA structure */ 6833 phba->pcidev = pdev; 6834 6835 /* Assign an unused board number */ 6836 phba->brd_no = lpfc_get_instance(); 6837 if (phba->brd_no < 0) { 6838 kfree(phba); 6839 return NULL; 6840 } 6841 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6842 6843 spin_lock_init(&phba->ct_ev_lock); 6844 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6845 6846 return phba; 6847 } 6848 6849 /** 6850 * lpfc_hba_free - Free driver hba data structure with a device. 6851 * @phba: pointer to lpfc hba data structure. 6852 * 6853 * This routine is invoked to free the driver hba data structure with an 6854 * HBA device. 6855 **/ 6856 static void 6857 lpfc_hba_free(struct lpfc_hba *phba) 6858 { 6859 /* Release the driver assigned board number */ 6860 idr_remove(&lpfc_hba_index, phba->brd_no); 6861 6862 /* Free memory allocated with sli3 rings */ 6863 kfree(phba->sli.sli3_ring); 6864 phba->sli.sli3_ring = NULL; 6865 6866 kfree(phba); 6867 return; 6868 } 6869 6870 /** 6871 * lpfc_create_shost - Create hba physical port with associated scsi host. 6872 * @phba: pointer to lpfc hba data structure. 6873 * 6874 * This routine is invoked to create HBA physical port and associate a SCSI 6875 * host with it. 6876 * 6877 * Return codes 6878 * 0 - successful 6879 * other values - error 6880 **/ 6881 static int 6882 lpfc_create_shost(struct lpfc_hba *phba) 6883 { 6884 struct lpfc_vport *vport; 6885 struct Scsi_Host *shost; 6886 6887 /* Initialize HBA FC structure */ 6888 phba->fc_edtov = FF_DEF_EDTOV; 6889 phba->fc_ratov = FF_DEF_RATOV; 6890 phba->fc_altov = FF_DEF_ALTOV; 6891 phba->fc_arbtov = FF_DEF_ARBTOV; 6892 6893 atomic_set(&phba->sdev_cnt, 0); 6894 atomic_set(&phba->fc4ScsiInputRequests, 0); 6895 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6896 atomic_set(&phba->fc4ScsiControlRequests, 0); 6897 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6898 atomic_set(&phba->fc4NvmeInputRequests, 0); 6899 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6900 atomic_set(&phba->fc4NvmeControlRequests, 0); 6901 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6902 atomic_set(&phba->fc4NvmeLsRequests, 0); 6903 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6904 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6905 if (!vport) 6906 return -ENODEV; 6907 6908 shost = lpfc_shost_from_vport(vport); 6909 phba->pport = vport; 6910 6911 if (phba->nvmet_support) { 6912 /* Only 1 vport (pport) will support NVME target */ 6913 if (phba->txrdy_payload_pool == NULL) { 6914 phba->txrdy_payload_pool = dma_pool_create( 6915 "txrdy_pool", &phba->pcidev->dev, 6916 TXRDY_PAYLOAD_LEN, 16, 0); 6917 if (phba->txrdy_payload_pool) { 6918 phba->targetport = NULL; 6919 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6920 lpfc_printf_log(phba, KERN_INFO, 6921 LOG_INIT | LOG_NVME_DISC, 6922 "6076 NVME Target Found\n"); 6923 } 6924 } 6925 } 6926 6927 lpfc_debugfs_initialize(vport); 6928 /* Put reference to SCSI host to driver's device private data */ 6929 pci_set_drvdata(phba->pcidev, shost); 6930 6931 /* 6932 * At this point we are fully registered with PSA. In addition, 6933 * any initial discovery should be completed. 6934 */ 6935 vport->load_flag |= FC_ALLOW_FDMI; 6936 if (phba->cfg_enable_SmartSAN || 6937 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6938 6939 /* Setup appropriate attribute masks */ 6940 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6941 if (phba->cfg_enable_SmartSAN) 6942 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6943 else 6944 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6945 } 6946 return 0; 6947 } 6948 6949 /** 6950 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6951 * @phba: pointer to lpfc hba data structure. 6952 * 6953 * This routine is invoked to destroy HBA physical port and the associated 6954 * SCSI host. 6955 **/ 6956 static void 6957 lpfc_destroy_shost(struct lpfc_hba *phba) 6958 { 6959 struct lpfc_vport *vport = phba->pport; 6960 6961 /* Destroy physical port that associated with the SCSI host */ 6962 destroy_port(vport); 6963 6964 return; 6965 } 6966 6967 /** 6968 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6969 * @phba: pointer to lpfc hba data structure. 6970 * @shost: the shost to be used to detect Block guard settings. 6971 * 6972 * This routine sets up the local Block guard protocol settings for @shost. 6973 * This routine also allocates memory for debugging bg buffers. 6974 **/ 6975 static void 6976 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6977 { 6978 uint32_t old_mask; 6979 uint32_t old_guard; 6980 6981 int pagecnt = 10; 6982 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6983 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6984 "1478 Registering BlockGuard with the " 6985 "SCSI layer\n"); 6986 6987 old_mask = phba->cfg_prot_mask; 6988 old_guard = phba->cfg_prot_guard; 6989 6990 /* Only allow supported values */ 6991 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6992 SHOST_DIX_TYPE0_PROTECTION | 6993 SHOST_DIX_TYPE1_PROTECTION); 6994 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6995 SHOST_DIX_GUARD_CRC); 6996 6997 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6998 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6999 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 7000 7001 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 7002 if ((old_mask != phba->cfg_prot_mask) || 7003 (old_guard != phba->cfg_prot_guard)) 7004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7005 "1475 Registering BlockGuard with the " 7006 "SCSI layer: mask %d guard %d\n", 7007 phba->cfg_prot_mask, 7008 phba->cfg_prot_guard); 7009 7010 scsi_host_set_prot(shost, phba->cfg_prot_mask); 7011 scsi_host_set_guard(shost, phba->cfg_prot_guard); 7012 } else 7013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7014 "1479 Not Registering BlockGuard with the SCSI " 7015 "layer, Bad protection parameters: %d %d\n", 7016 old_mask, old_guard); 7017 } 7018 7019 if (!_dump_buf_data) { 7020 while (pagecnt) { 7021 spin_lock_init(&_dump_buf_lock); 7022 _dump_buf_data = 7023 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7024 if (_dump_buf_data) { 7025 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7026 "9043 BLKGRD: allocated %d pages for " 7027 "_dump_buf_data at 0x%p\n", 7028 (1 << pagecnt), _dump_buf_data); 7029 _dump_buf_data_order = pagecnt; 7030 memset(_dump_buf_data, 0, 7031 ((1 << PAGE_SHIFT) << pagecnt)); 7032 break; 7033 } else 7034 --pagecnt; 7035 } 7036 if (!_dump_buf_data_order) 7037 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7038 "9044 BLKGRD: ERROR unable to allocate " 7039 "memory for hexdump\n"); 7040 } else 7041 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7042 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 7043 "\n", _dump_buf_data); 7044 if (!_dump_buf_dif) { 7045 while (pagecnt) { 7046 _dump_buf_dif = 7047 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7048 if (_dump_buf_dif) { 7049 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7050 "9046 BLKGRD: allocated %d pages for " 7051 "_dump_buf_dif at 0x%p\n", 7052 (1 << pagecnt), _dump_buf_dif); 7053 _dump_buf_dif_order = pagecnt; 7054 memset(_dump_buf_dif, 0, 7055 ((1 << PAGE_SHIFT) << pagecnt)); 7056 break; 7057 } else 7058 --pagecnt; 7059 } 7060 if (!_dump_buf_dif_order) 7061 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7062 "9047 BLKGRD: ERROR unable to allocate " 7063 "memory for hexdump\n"); 7064 } else 7065 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7066 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7067 _dump_buf_dif); 7068 } 7069 7070 /** 7071 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7072 * @phba: pointer to lpfc hba data structure. 7073 * 7074 * This routine is invoked to perform all the necessary post initialization 7075 * setup for the device. 7076 **/ 7077 static void 7078 lpfc_post_init_setup(struct lpfc_hba *phba) 7079 { 7080 struct Scsi_Host *shost; 7081 struct lpfc_adapter_event_header adapter_event; 7082 7083 /* Get the default values for Model Name and Description */ 7084 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7085 7086 /* 7087 * hba setup may have changed the hba_queue_depth so we need to 7088 * adjust the value of can_queue. 7089 */ 7090 shost = pci_get_drvdata(phba->pcidev); 7091 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7092 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7093 lpfc_setup_bg(phba, shost); 7094 7095 lpfc_host_attrib_init(shost); 7096 7097 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7098 spin_lock_irq(shost->host_lock); 7099 lpfc_poll_start_timer(phba); 7100 spin_unlock_irq(shost->host_lock); 7101 } 7102 7103 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7104 "0428 Perform SCSI scan\n"); 7105 /* Send board arrival event to upper layer */ 7106 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7107 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7108 fc_host_post_vendor_event(shost, fc_get_event_number(), 7109 sizeof(adapter_event), 7110 (char *) &adapter_event, 7111 LPFC_NL_VENDOR_ID); 7112 return; 7113 } 7114 7115 /** 7116 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7117 * @phba: pointer to lpfc hba data structure. 7118 * 7119 * This routine is invoked to set up the PCI device memory space for device 7120 * with SLI-3 interface spec. 7121 * 7122 * Return codes 7123 * 0 - successful 7124 * other values - error 7125 **/ 7126 static int 7127 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7128 { 7129 struct pci_dev *pdev; 7130 unsigned long bar0map_len, bar2map_len; 7131 int i, hbq_count; 7132 void *ptr; 7133 int error = -ENODEV; 7134 7135 /* Obtain PCI device reference */ 7136 if (!phba->pcidev) 7137 return error; 7138 else 7139 pdev = phba->pcidev; 7140 7141 /* Set the device DMA mask size */ 7142 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7143 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7144 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7145 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7146 return error; 7147 } 7148 } 7149 7150 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7151 * required by each mapping. 7152 */ 7153 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7154 bar0map_len = pci_resource_len(pdev, 0); 7155 7156 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7157 bar2map_len = pci_resource_len(pdev, 2); 7158 7159 /* Map HBA SLIM to a kernel virtual address. */ 7160 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7161 if (!phba->slim_memmap_p) { 7162 dev_printk(KERN_ERR, &pdev->dev, 7163 "ioremap failed for SLIM memory.\n"); 7164 goto out; 7165 } 7166 7167 /* Map HBA Control Registers to a kernel virtual address. */ 7168 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7169 if (!phba->ctrl_regs_memmap_p) { 7170 dev_printk(KERN_ERR, &pdev->dev, 7171 "ioremap failed for HBA control registers.\n"); 7172 goto out_iounmap_slim; 7173 } 7174 7175 /* Allocate memory for SLI-2 structures */ 7176 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7177 &phba->slim2p.phys, GFP_KERNEL); 7178 if (!phba->slim2p.virt) 7179 goto out_iounmap; 7180 7181 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7182 phba->mbox_ext = (phba->slim2p.virt + 7183 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7184 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7185 phba->IOCBs = (phba->slim2p.virt + 7186 offsetof(struct lpfc_sli2_slim, IOCBs)); 7187 7188 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7189 lpfc_sli_hbq_size(), 7190 &phba->hbqslimp.phys, 7191 GFP_KERNEL); 7192 if (!phba->hbqslimp.virt) 7193 goto out_free_slim; 7194 7195 hbq_count = lpfc_sli_hbq_count(); 7196 ptr = phba->hbqslimp.virt; 7197 for (i = 0; i < hbq_count; ++i) { 7198 phba->hbqs[i].hbq_virt = ptr; 7199 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7200 ptr += (lpfc_hbq_defs[i]->entry_count * 7201 sizeof(struct lpfc_hbq_entry)); 7202 } 7203 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7204 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7205 7206 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7207 7208 phba->MBslimaddr = phba->slim_memmap_p; 7209 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7210 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7211 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7212 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7213 7214 return 0; 7215 7216 out_free_slim: 7217 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7218 phba->slim2p.virt, phba->slim2p.phys); 7219 out_iounmap: 7220 iounmap(phba->ctrl_regs_memmap_p); 7221 out_iounmap_slim: 7222 iounmap(phba->slim_memmap_p); 7223 out: 7224 return error; 7225 } 7226 7227 /** 7228 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7229 * @phba: pointer to lpfc hba data structure. 7230 * 7231 * This routine is invoked to unset the PCI device memory space for device 7232 * with SLI-3 interface spec. 7233 **/ 7234 static void 7235 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7236 { 7237 struct pci_dev *pdev; 7238 7239 /* Obtain PCI device reference */ 7240 if (!phba->pcidev) 7241 return; 7242 else 7243 pdev = phba->pcidev; 7244 7245 /* Free coherent DMA memory allocated */ 7246 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7247 phba->hbqslimp.virt, phba->hbqslimp.phys); 7248 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7249 phba->slim2p.virt, phba->slim2p.phys); 7250 7251 /* I/O memory unmap */ 7252 iounmap(phba->ctrl_regs_memmap_p); 7253 iounmap(phba->slim_memmap_p); 7254 7255 return; 7256 } 7257 7258 /** 7259 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7260 * @phba: pointer to lpfc hba data structure. 7261 * 7262 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7263 * done and check status. 7264 * 7265 * Return 0 if successful, otherwise -ENODEV. 7266 **/ 7267 int 7268 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7269 { 7270 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7271 struct lpfc_register reg_data; 7272 int i, port_error = 0; 7273 uint32_t if_type; 7274 7275 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7276 memset(®_data, 0, sizeof(reg_data)); 7277 if (!phba->sli4_hba.PSMPHRregaddr) 7278 return -ENODEV; 7279 7280 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7281 for (i = 0; i < 3000; i++) { 7282 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7283 &portsmphr_reg.word0) || 7284 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7285 /* Port has a fatal POST error, break out */ 7286 port_error = -ENODEV; 7287 break; 7288 } 7289 if (LPFC_POST_STAGE_PORT_READY == 7290 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7291 break; 7292 msleep(10); 7293 } 7294 7295 /* 7296 * If there was a port error during POST, then don't proceed with 7297 * other register reads as the data may not be valid. Just exit. 7298 */ 7299 if (port_error) { 7300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7301 "1408 Port Failed POST - portsmphr=0x%x, " 7302 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7303 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7304 portsmphr_reg.word0, 7305 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7306 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7307 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7308 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7309 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7310 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7311 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7312 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7313 } else { 7314 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7315 "2534 Device Info: SLIFamily=0x%x, " 7316 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7317 "SLIHint_2=0x%x, FT=0x%x\n", 7318 bf_get(lpfc_sli_intf_sli_family, 7319 &phba->sli4_hba.sli_intf), 7320 bf_get(lpfc_sli_intf_slirev, 7321 &phba->sli4_hba.sli_intf), 7322 bf_get(lpfc_sli_intf_if_type, 7323 &phba->sli4_hba.sli_intf), 7324 bf_get(lpfc_sli_intf_sli_hint1, 7325 &phba->sli4_hba.sli_intf), 7326 bf_get(lpfc_sli_intf_sli_hint2, 7327 &phba->sli4_hba.sli_intf), 7328 bf_get(lpfc_sli_intf_func_type, 7329 &phba->sli4_hba.sli_intf)); 7330 /* 7331 * Check for other Port errors during the initialization 7332 * process. Fail the load if the port did not come up 7333 * correctly. 7334 */ 7335 if_type = bf_get(lpfc_sli_intf_if_type, 7336 &phba->sli4_hba.sli_intf); 7337 switch (if_type) { 7338 case LPFC_SLI_INTF_IF_TYPE_0: 7339 phba->sli4_hba.ue_mask_lo = 7340 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7341 phba->sli4_hba.ue_mask_hi = 7342 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7343 uerrlo_reg.word0 = 7344 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7345 uerrhi_reg.word0 = 7346 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7347 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7348 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7350 "1422 Unrecoverable Error " 7351 "Detected during POST " 7352 "uerr_lo_reg=0x%x, " 7353 "uerr_hi_reg=0x%x, " 7354 "ue_mask_lo_reg=0x%x, " 7355 "ue_mask_hi_reg=0x%x\n", 7356 uerrlo_reg.word0, 7357 uerrhi_reg.word0, 7358 phba->sli4_hba.ue_mask_lo, 7359 phba->sli4_hba.ue_mask_hi); 7360 port_error = -ENODEV; 7361 } 7362 break; 7363 case LPFC_SLI_INTF_IF_TYPE_2: 7364 case LPFC_SLI_INTF_IF_TYPE_6: 7365 /* Final checks. The port status should be clean. */ 7366 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7367 ®_data.word0) || 7368 (bf_get(lpfc_sliport_status_err, ®_data) && 7369 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7370 phba->work_status[0] = 7371 readl(phba->sli4_hba.u.if_type2. 7372 ERR1regaddr); 7373 phba->work_status[1] = 7374 readl(phba->sli4_hba.u.if_type2. 7375 ERR2regaddr); 7376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7377 "2888 Unrecoverable port error " 7378 "following POST: port status reg " 7379 "0x%x, port_smphr reg 0x%x, " 7380 "error 1=0x%x, error 2=0x%x\n", 7381 reg_data.word0, 7382 portsmphr_reg.word0, 7383 phba->work_status[0], 7384 phba->work_status[1]); 7385 port_error = -ENODEV; 7386 } 7387 break; 7388 case LPFC_SLI_INTF_IF_TYPE_1: 7389 default: 7390 break; 7391 } 7392 } 7393 return port_error; 7394 } 7395 7396 /** 7397 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7398 * @phba: pointer to lpfc hba data structure. 7399 * @if_type: The SLI4 interface type getting configured. 7400 * 7401 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7402 * memory map. 7403 **/ 7404 static void 7405 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7406 { 7407 switch (if_type) { 7408 case LPFC_SLI_INTF_IF_TYPE_0: 7409 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7410 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7411 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7412 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7413 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7414 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7415 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7416 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7417 phba->sli4_hba.SLIINTFregaddr = 7418 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7419 break; 7420 case LPFC_SLI_INTF_IF_TYPE_2: 7421 phba->sli4_hba.u.if_type2.EQDregaddr = 7422 phba->sli4_hba.conf_regs_memmap_p + 7423 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7424 phba->sli4_hba.u.if_type2.ERR1regaddr = 7425 phba->sli4_hba.conf_regs_memmap_p + 7426 LPFC_CTL_PORT_ER1_OFFSET; 7427 phba->sli4_hba.u.if_type2.ERR2regaddr = 7428 phba->sli4_hba.conf_regs_memmap_p + 7429 LPFC_CTL_PORT_ER2_OFFSET; 7430 phba->sli4_hba.u.if_type2.CTRLregaddr = 7431 phba->sli4_hba.conf_regs_memmap_p + 7432 LPFC_CTL_PORT_CTL_OFFSET; 7433 phba->sli4_hba.u.if_type2.STATUSregaddr = 7434 phba->sli4_hba.conf_regs_memmap_p + 7435 LPFC_CTL_PORT_STA_OFFSET; 7436 phba->sli4_hba.SLIINTFregaddr = 7437 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7438 phba->sli4_hba.PSMPHRregaddr = 7439 phba->sli4_hba.conf_regs_memmap_p + 7440 LPFC_CTL_PORT_SEM_OFFSET; 7441 phba->sli4_hba.RQDBregaddr = 7442 phba->sli4_hba.conf_regs_memmap_p + 7443 LPFC_ULP0_RQ_DOORBELL; 7444 phba->sli4_hba.WQDBregaddr = 7445 phba->sli4_hba.conf_regs_memmap_p + 7446 LPFC_ULP0_WQ_DOORBELL; 7447 phba->sli4_hba.CQDBregaddr = 7448 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7449 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 7450 phba->sli4_hba.MQDBregaddr = 7451 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7452 phba->sli4_hba.BMBXregaddr = 7453 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7454 break; 7455 case LPFC_SLI_INTF_IF_TYPE_6: 7456 phba->sli4_hba.u.if_type2.EQDregaddr = 7457 phba->sli4_hba.conf_regs_memmap_p + 7458 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7459 phba->sli4_hba.u.if_type2.ERR1regaddr = 7460 phba->sli4_hba.conf_regs_memmap_p + 7461 LPFC_CTL_PORT_ER1_OFFSET; 7462 phba->sli4_hba.u.if_type2.ERR2regaddr = 7463 phba->sli4_hba.conf_regs_memmap_p + 7464 LPFC_CTL_PORT_ER2_OFFSET; 7465 phba->sli4_hba.u.if_type2.CTRLregaddr = 7466 phba->sli4_hba.conf_regs_memmap_p + 7467 LPFC_CTL_PORT_CTL_OFFSET; 7468 phba->sli4_hba.u.if_type2.STATUSregaddr = 7469 phba->sli4_hba.conf_regs_memmap_p + 7470 LPFC_CTL_PORT_STA_OFFSET; 7471 phba->sli4_hba.PSMPHRregaddr = 7472 phba->sli4_hba.conf_regs_memmap_p + 7473 LPFC_CTL_PORT_SEM_OFFSET; 7474 phba->sli4_hba.BMBXregaddr = 7475 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7476 break; 7477 case LPFC_SLI_INTF_IF_TYPE_1: 7478 default: 7479 dev_printk(KERN_ERR, &phba->pcidev->dev, 7480 "FATAL - unsupported SLI4 interface type - %d\n", 7481 if_type); 7482 break; 7483 } 7484 } 7485 7486 /** 7487 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7488 * @phba: pointer to lpfc hba data structure. 7489 * 7490 * This routine is invoked to set up SLI4 BAR1 register memory map. 7491 **/ 7492 static void 7493 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7494 { 7495 switch (if_type) { 7496 case LPFC_SLI_INTF_IF_TYPE_0: 7497 phba->sli4_hba.PSMPHRregaddr = 7498 phba->sli4_hba.ctrl_regs_memmap_p + 7499 LPFC_SLIPORT_IF0_SMPHR; 7500 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7501 LPFC_HST_ISR0; 7502 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7503 LPFC_HST_IMR0; 7504 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7505 LPFC_HST_ISCR0; 7506 break; 7507 case LPFC_SLI_INTF_IF_TYPE_6: 7508 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7509 LPFC_IF6_RQ_DOORBELL; 7510 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7511 LPFC_IF6_WQ_DOORBELL; 7512 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7513 LPFC_IF6_CQ_DOORBELL; 7514 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7515 LPFC_IF6_EQ_DOORBELL; 7516 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7517 LPFC_IF6_MQ_DOORBELL; 7518 break; 7519 case LPFC_SLI_INTF_IF_TYPE_2: 7520 case LPFC_SLI_INTF_IF_TYPE_1: 7521 default: 7522 dev_err(&phba->pcidev->dev, 7523 "FATAL - unsupported SLI4 interface type - %d\n", 7524 if_type); 7525 break; 7526 } 7527 } 7528 7529 /** 7530 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7531 * @phba: pointer to lpfc hba data structure. 7532 * @vf: virtual function number 7533 * 7534 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7535 * based on the given viftual function number, @vf. 7536 * 7537 * Return 0 if successful, otherwise -ENODEV. 7538 **/ 7539 static int 7540 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7541 { 7542 if (vf > LPFC_VIR_FUNC_MAX) 7543 return -ENODEV; 7544 7545 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7546 vf * LPFC_VFR_PAGE_SIZE + 7547 LPFC_ULP0_RQ_DOORBELL); 7548 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7549 vf * LPFC_VFR_PAGE_SIZE + 7550 LPFC_ULP0_WQ_DOORBELL); 7551 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7552 vf * LPFC_VFR_PAGE_SIZE + 7553 LPFC_EQCQ_DOORBELL); 7554 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 7555 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7556 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7557 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7558 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7559 return 0; 7560 } 7561 7562 /** 7563 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7564 * @phba: pointer to lpfc hba data structure. 7565 * 7566 * This routine is invoked to create the bootstrap mailbox 7567 * region consistent with the SLI-4 interface spec. This 7568 * routine allocates all memory necessary to communicate 7569 * mailbox commands to the port and sets up all alignment 7570 * needs. No locks are expected to be held when calling 7571 * this routine. 7572 * 7573 * Return codes 7574 * 0 - successful 7575 * -ENOMEM - could not allocated memory. 7576 **/ 7577 static int 7578 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7579 { 7580 uint32_t bmbx_size; 7581 struct lpfc_dmabuf *dmabuf; 7582 struct dma_address *dma_address; 7583 uint32_t pa_addr; 7584 uint64_t phys_addr; 7585 7586 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7587 if (!dmabuf) 7588 return -ENOMEM; 7589 7590 /* 7591 * The bootstrap mailbox region is comprised of 2 parts 7592 * plus an alignment restriction of 16 bytes. 7593 */ 7594 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7595 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7596 &dmabuf->phys, GFP_KERNEL); 7597 if (!dmabuf->virt) { 7598 kfree(dmabuf); 7599 return -ENOMEM; 7600 } 7601 7602 /* 7603 * Initialize the bootstrap mailbox pointers now so that the register 7604 * operations are simple later. The mailbox dma address is required 7605 * to be 16-byte aligned. Also align the virtual memory as each 7606 * maibox is copied into the bmbx mailbox region before issuing the 7607 * command to the port. 7608 */ 7609 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7610 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7611 7612 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7613 LPFC_ALIGN_16_BYTE); 7614 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7615 LPFC_ALIGN_16_BYTE); 7616 7617 /* 7618 * Set the high and low physical addresses now. The SLI4 alignment 7619 * requirement is 16 bytes and the mailbox is posted to the port 7620 * as two 30-bit addresses. The other data is a bit marking whether 7621 * the 30-bit address is the high or low address. 7622 * Upcast bmbx aphys to 64bits so shift instruction compiles 7623 * clean on 32 bit machines. 7624 */ 7625 dma_address = &phba->sli4_hba.bmbx.dma_address; 7626 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7627 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7628 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7629 LPFC_BMBX_BIT1_ADDR_HI); 7630 7631 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7632 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7633 LPFC_BMBX_BIT1_ADDR_LO); 7634 return 0; 7635 } 7636 7637 /** 7638 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7639 * @phba: pointer to lpfc hba data structure. 7640 * 7641 * This routine is invoked to teardown the bootstrap mailbox 7642 * region and release all host resources. This routine requires 7643 * the caller to ensure all mailbox commands recovered, no 7644 * additional mailbox comands are sent, and interrupts are disabled 7645 * before calling this routine. 7646 * 7647 **/ 7648 static void 7649 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7650 { 7651 dma_free_coherent(&phba->pcidev->dev, 7652 phba->sli4_hba.bmbx.bmbx_size, 7653 phba->sli4_hba.bmbx.dmabuf->virt, 7654 phba->sli4_hba.bmbx.dmabuf->phys); 7655 7656 kfree(phba->sli4_hba.bmbx.dmabuf); 7657 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7658 } 7659 7660 /** 7661 * lpfc_sli4_read_config - Get the config parameters. 7662 * @phba: pointer to lpfc hba data structure. 7663 * 7664 * This routine is invoked to read the configuration parameters from the HBA. 7665 * The configuration parameters are used to set the base and maximum values 7666 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7667 * allocation for the port. 7668 * 7669 * Return codes 7670 * 0 - successful 7671 * -ENOMEM - No available memory 7672 * -EIO - The mailbox failed to complete successfully. 7673 **/ 7674 int 7675 lpfc_sli4_read_config(struct lpfc_hba *phba) 7676 { 7677 LPFC_MBOXQ_t *pmb; 7678 struct lpfc_mbx_read_config *rd_config; 7679 union lpfc_sli4_cfg_shdr *shdr; 7680 uint32_t shdr_status, shdr_add_status; 7681 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7682 struct lpfc_rsrc_desc_fcfcoe *desc; 7683 char *pdesc_0; 7684 uint16_t forced_link_speed; 7685 uint32_t if_type; 7686 int length, i, rc = 0, rc2; 7687 7688 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7689 if (!pmb) { 7690 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7691 "2011 Unable to allocate memory for issuing " 7692 "SLI_CONFIG_SPECIAL mailbox command\n"); 7693 return -ENOMEM; 7694 } 7695 7696 lpfc_read_config(phba, pmb); 7697 7698 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7699 if (rc != MBX_SUCCESS) { 7700 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7701 "2012 Mailbox failed , mbxCmd x%x " 7702 "READ_CONFIG, mbxStatus x%x\n", 7703 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7704 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7705 rc = -EIO; 7706 } else { 7707 rd_config = &pmb->u.mqe.un.rd_config; 7708 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7709 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7710 phba->sli4_hba.lnk_info.lnk_tp = 7711 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7712 phba->sli4_hba.lnk_info.lnk_no = 7713 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7714 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7715 "3081 lnk_type:%d, lnk_numb:%d\n", 7716 phba->sli4_hba.lnk_info.lnk_tp, 7717 phba->sli4_hba.lnk_info.lnk_no); 7718 } else 7719 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7720 "3082 Mailbox (x%x) returned ldv:x0\n", 7721 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7722 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7723 phba->bbcredit_support = 1; 7724 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7725 } 7726 7727 phba->sli4_hba.extents_in_use = 7728 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7729 phba->sli4_hba.max_cfg_param.max_xri = 7730 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7731 phba->sli4_hba.max_cfg_param.xri_base = 7732 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7733 phba->sli4_hba.max_cfg_param.max_vpi = 7734 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7735 phba->sli4_hba.max_cfg_param.vpi_base = 7736 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7737 phba->sli4_hba.max_cfg_param.max_rpi = 7738 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7739 phba->sli4_hba.max_cfg_param.rpi_base = 7740 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7741 phba->sli4_hba.max_cfg_param.max_vfi = 7742 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7743 phba->sli4_hba.max_cfg_param.vfi_base = 7744 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7745 phba->sli4_hba.max_cfg_param.max_fcfi = 7746 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7747 phba->sli4_hba.max_cfg_param.max_eq = 7748 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7749 phba->sli4_hba.max_cfg_param.max_rq = 7750 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7751 phba->sli4_hba.max_cfg_param.max_wq = 7752 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7753 phba->sli4_hba.max_cfg_param.max_cq = 7754 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7755 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7756 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7757 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7758 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7759 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7760 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7761 phba->max_vports = phba->max_vpi; 7762 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7763 "2003 cfg params Extents? %d " 7764 "XRI(B:%d M:%d), " 7765 "VPI(B:%d M:%d) " 7766 "VFI(B:%d M:%d) " 7767 "RPI(B:%d M:%d) " 7768 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7769 phba->sli4_hba.extents_in_use, 7770 phba->sli4_hba.max_cfg_param.xri_base, 7771 phba->sli4_hba.max_cfg_param.max_xri, 7772 phba->sli4_hba.max_cfg_param.vpi_base, 7773 phba->sli4_hba.max_cfg_param.max_vpi, 7774 phba->sli4_hba.max_cfg_param.vfi_base, 7775 phba->sli4_hba.max_cfg_param.max_vfi, 7776 phba->sli4_hba.max_cfg_param.rpi_base, 7777 phba->sli4_hba.max_cfg_param.max_rpi, 7778 phba->sli4_hba.max_cfg_param.max_fcfi, 7779 phba->sli4_hba.max_cfg_param.max_eq, 7780 phba->sli4_hba.max_cfg_param.max_cq, 7781 phba->sli4_hba.max_cfg_param.max_wq, 7782 phba->sli4_hba.max_cfg_param.max_rq); 7783 7784 } 7785 7786 if (rc) 7787 goto read_cfg_out; 7788 7789 /* Update link speed if forced link speed is supported */ 7790 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7791 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 7792 forced_link_speed = 7793 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7794 if (forced_link_speed) { 7795 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7796 7797 switch (forced_link_speed) { 7798 case LINK_SPEED_1G: 7799 phba->cfg_link_speed = 7800 LPFC_USER_LINK_SPEED_1G; 7801 break; 7802 case LINK_SPEED_2G: 7803 phba->cfg_link_speed = 7804 LPFC_USER_LINK_SPEED_2G; 7805 break; 7806 case LINK_SPEED_4G: 7807 phba->cfg_link_speed = 7808 LPFC_USER_LINK_SPEED_4G; 7809 break; 7810 case LINK_SPEED_8G: 7811 phba->cfg_link_speed = 7812 LPFC_USER_LINK_SPEED_8G; 7813 break; 7814 case LINK_SPEED_10G: 7815 phba->cfg_link_speed = 7816 LPFC_USER_LINK_SPEED_10G; 7817 break; 7818 case LINK_SPEED_16G: 7819 phba->cfg_link_speed = 7820 LPFC_USER_LINK_SPEED_16G; 7821 break; 7822 case LINK_SPEED_32G: 7823 phba->cfg_link_speed = 7824 LPFC_USER_LINK_SPEED_32G; 7825 break; 7826 case LINK_SPEED_64G: 7827 phba->cfg_link_speed = 7828 LPFC_USER_LINK_SPEED_64G; 7829 break; 7830 case 0xffff: 7831 phba->cfg_link_speed = 7832 LPFC_USER_LINK_SPEED_AUTO; 7833 break; 7834 default: 7835 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7836 "0047 Unrecognized link " 7837 "speed : %d\n", 7838 forced_link_speed); 7839 phba->cfg_link_speed = 7840 LPFC_USER_LINK_SPEED_AUTO; 7841 } 7842 } 7843 } 7844 7845 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7846 length = phba->sli4_hba.max_cfg_param.max_xri - 7847 lpfc_sli4_get_els_iocb_cnt(phba); 7848 if (phba->cfg_hba_queue_depth > length) { 7849 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7850 "3361 HBA queue depth changed from %d to %d\n", 7851 phba->cfg_hba_queue_depth, length); 7852 phba->cfg_hba_queue_depth = length; 7853 } 7854 7855 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 7856 LPFC_SLI_INTF_IF_TYPE_2) 7857 goto read_cfg_out; 7858 7859 /* get the pf# and vf# for SLI4 if_type 2 port */ 7860 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7861 sizeof(struct lpfc_sli4_cfg_mhdr)); 7862 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7863 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7864 length, LPFC_SLI4_MBX_EMBED); 7865 7866 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7867 shdr = (union lpfc_sli4_cfg_shdr *) 7868 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7869 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7870 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7871 if (rc2 || shdr_status || shdr_add_status) { 7872 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7873 "3026 Mailbox failed , mbxCmd x%x " 7874 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7875 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7876 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7877 goto read_cfg_out; 7878 } 7879 7880 /* search for fc_fcoe resrouce descriptor */ 7881 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7882 7883 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7884 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7885 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7886 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7887 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7888 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7889 goto read_cfg_out; 7890 7891 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7892 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7893 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7894 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7895 phba->sli4_hba.iov.pf_number = 7896 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7897 phba->sli4_hba.iov.vf_number = 7898 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7899 break; 7900 } 7901 } 7902 7903 if (i < LPFC_RSRC_DESC_MAX_NUM) 7904 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7905 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7906 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7907 phba->sli4_hba.iov.vf_number); 7908 else 7909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7910 "3028 GET_FUNCTION_CONFIG: failed to find " 7911 "Resrouce Descriptor:x%x\n", 7912 LPFC_RSRC_DESC_TYPE_FCFCOE); 7913 7914 read_cfg_out: 7915 mempool_free(pmb, phba->mbox_mem_pool); 7916 return rc; 7917 } 7918 7919 /** 7920 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7921 * @phba: pointer to lpfc hba data structure. 7922 * 7923 * This routine is invoked to setup the port-side endian order when 7924 * the port if_type is 0. This routine has no function for other 7925 * if_types. 7926 * 7927 * Return codes 7928 * 0 - successful 7929 * -ENOMEM - No available memory 7930 * -EIO - The mailbox failed to complete successfully. 7931 **/ 7932 static int 7933 lpfc_setup_endian_order(struct lpfc_hba *phba) 7934 { 7935 LPFC_MBOXQ_t *mboxq; 7936 uint32_t if_type, rc = 0; 7937 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7938 HOST_ENDIAN_HIGH_WORD1}; 7939 7940 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7941 switch (if_type) { 7942 case LPFC_SLI_INTF_IF_TYPE_0: 7943 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7944 GFP_KERNEL); 7945 if (!mboxq) { 7946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7947 "0492 Unable to allocate memory for " 7948 "issuing SLI_CONFIG_SPECIAL mailbox " 7949 "command\n"); 7950 return -ENOMEM; 7951 } 7952 7953 /* 7954 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7955 * two words to contain special data values and no other data. 7956 */ 7957 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7958 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7959 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7960 if (rc != MBX_SUCCESS) { 7961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7962 "0493 SLI_CONFIG_SPECIAL mailbox " 7963 "failed with status x%x\n", 7964 rc); 7965 rc = -EIO; 7966 } 7967 mempool_free(mboxq, phba->mbox_mem_pool); 7968 break; 7969 case LPFC_SLI_INTF_IF_TYPE_6: 7970 case LPFC_SLI_INTF_IF_TYPE_2: 7971 case LPFC_SLI_INTF_IF_TYPE_1: 7972 default: 7973 break; 7974 } 7975 return rc; 7976 } 7977 7978 /** 7979 * lpfc_sli4_queue_verify - Verify and update EQ counts 7980 * @phba: pointer to lpfc hba data structure. 7981 * 7982 * This routine is invoked to check the user settable queue counts for EQs. 7983 * After this routine is called the counts will be set to valid values that 7984 * adhere to the constraints of the system's interrupt vectors and the port's 7985 * queue resources. 7986 * 7987 * Return codes 7988 * 0 - successful 7989 * -ENOMEM - No available memory 7990 **/ 7991 static int 7992 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7993 { 7994 int io_channel; 7995 int fof_vectors = phba->cfg_fof ? 1 : 0; 7996 7997 /* 7998 * Sanity check for configured queue parameters against the run-time 7999 * device parameters 8000 */ 8001 8002 /* Sanity check on HBA EQ parameters */ 8003 io_channel = phba->io_channel_irqs; 8004 8005 if (phba->sli4_hba.num_online_cpu < io_channel) { 8006 lpfc_printf_log(phba, 8007 KERN_ERR, LOG_INIT, 8008 "3188 Reducing IO channels to match number of " 8009 "online CPUs: from %d to %d\n", 8010 io_channel, phba->sli4_hba.num_online_cpu); 8011 io_channel = phba->sli4_hba.num_online_cpu; 8012 } 8013 8014 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 8015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8016 "2575 Reducing IO channels to match number of " 8017 "available EQs: from %d to %d\n", 8018 io_channel, 8019 phba->sli4_hba.max_cfg_param.max_eq); 8020 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 8021 } 8022 8023 /* The actual number of FCP / NVME event queues adopted */ 8024 if (io_channel != phba->io_channel_irqs) 8025 phba->io_channel_irqs = io_channel; 8026 if (phba->cfg_fcp_io_channel > io_channel) 8027 phba->cfg_fcp_io_channel = io_channel; 8028 if (phba->cfg_nvme_io_channel > io_channel) 8029 phba->cfg_nvme_io_channel = io_channel; 8030 if (phba->nvmet_support) { 8031 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 8032 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 8033 } 8034 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 8035 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 8036 8037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8038 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 8039 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 8040 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 8041 8042 /* Get EQ depth from module parameter, fake the default for now */ 8043 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8044 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8045 8046 /* Get CQ depth from module parameter, fake the default for now */ 8047 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8048 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8049 return 0; 8050 } 8051 8052 static int 8053 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 8054 { 8055 struct lpfc_queue *qdesc; 8056 8057 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8058 phba->sli4_hba.cq_esize, 8059 LPFC_CQE_EXP_COUNT); 8060 if (!qdesc) { 8061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8062 "0508 Failed allocate fast-path NVME CQ (%d)\n", 8063 wqidx); 8064 return 1; 8065 } 8066 qdesc->qe_valid = 1; 8067 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 8068 8069 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8070 LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT); 8071 if (!qdesc) { 8072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8073 "0509 Failed allocate fast-path NVME WQ (%d)\n", 8074 wqidx); 8075 return 1; 8076 } 8077 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 8078 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8079 return 0; 8080 } 8081 8082 static int 8083 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 8084 { 8085 struct lpfc_queue *qdesc; 8086 uint32_t wqesize; 8087 8088 /* Create Fast Path FCP CQs */ 8089 if (phba->enab_exp_wqcq_pages) 8090 /* Increase the CQ size when WQEs contain an embedded cdb */ 8091 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8092 phba->sli4_hba.cq_esize, 8093 LPFC_CQE_EXP_COUNT); 8094 8095 else 8096 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8097 phba->sli4_hba.cq_esize, 8098 phba->sli4_hba.cq_ecount); 8099 if (!qdesc) { 8100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8101 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 8102 return 1; 8103 } 8104 qdesc->qe_valid = 1; 8105 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 8106 8107 /* Create Fast Path FCP WQs */ 8108 if (phba->enab_exp_wqcq_pages) { 8109 /* Increase the WQ size when WQEs contain an embedded cdb */ 8110 wqesize = (phba->fcp_embed_io) ? 8111 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 8112 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8113 wqesize, 8114 LPFC_WQE_EXP_COUNT); 8115 } else 8116 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8117 phba->sli4_hba.wq_esize, 8118 phba->sli4_hba.wq_ecount); 8119 8120 if (!qdesc) { 8121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8122 "0503 Failed allocate fast-path FCP WQ (%d)\n", 8123 wqidx); 8124 return 1; 8125 } 8126 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 8127 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8128 return 0; 8129 } 8130 8131 /** 8132 * lpfc_sli4_queue_create - Create all the SLI4 queues 8133 * @phba: pointer to lpfc hba data structure. 8134 * 8135 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8136 * operation. For each SLI4 queue type, the parameters such as queue entry 8137 * count (queue depth) shall be taken from the module parameter. For now, 8138 * we just use some constant number as place holder. 8139 * 8140 * Return codes 8141 * 0 - successful 8142 * -ENOMEM - No availble memory 8143 * -EIO - The mailbox failed to complete successfully. 8144 **/ 8145 int 8146 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8147 { 8148 struct lpfc_queue *qdesc; 8149 int idx, io_channel; 8150 8151 /* 8152 * Create HBA Record arrays. 8153 * Both NVME and FCP will share that same vectors / EQs 8154 */ 8155 io_channel = phba->io_channel_irqs; 8156 if (!io_channel) 8157 return -ERANGE; 8158 8159 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8160 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8161 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8162 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8163 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8164 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8165 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8166 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8167 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8168 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8169 8170 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8171 sizeof(struct lpfc_queue *), 8172 GFP_KERNEL); 8173 if (!phba->sli4_hba.hba_eq) { 8174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8175 "2576 Failed allocate memory for " 8176 "fast-path EQ record array\n"); 8177 goto out_error; 8178 } 8179 8180 if (phba->cfg_fcp_io_channel) { 8181 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8182 sizeof(struct lpfc_queue *), 8183 GFP_KERNEL); 8184 if (!phba->sli4_hba.fcp_cq) { 8185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8186 "2577 Failed allocate memory for " 8187 "fast-path CQ record array\n"); 8188 goto out_error; 8189 } 8190 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8191 sizeof(struct lpfc_queue *), 8192 GFP_KERNEL); 8193 if (!phba->sli4_hba.fcp_wq) { 8194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8195 "2578 Failed allocate memory for " 8196 "fast-path FCP WQ record array\n"); 8197 goto out_error; 8198 } 8199 /* 8200 * Since the first EQ can have multiple CQs associated with it, 8201 * this array is used to quickly see if we have a FCP fast-path 8202 * CQ match. 8203 */ 8204 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8205 sizeof(uint16_t), 8206 GFP_KERNEL); 8207 if (!phba->sli4_hba.fcp_cq_map) { 8208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8209 "2545 Failed allocate memory for " 8210 "fast-path CQ map\n"); 8211 goto out_error; 8212 } 8213 } 8214 8215 if (phba->cfg_nvme_io_channel) { 8216 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8217 sizeof(struct lpfc_queue *), 8218 GFP_KERNEL); 8219 if (!phba->sli4_hba.nvme_cq) { 8220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8221 "6077 Failed allocate memory for " 8222 "fast-path CQ record array\n"); 8223 goto out_error; 8224 } 8225 8226 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8227 sizeof(struct lpfc_queue *), 8228 GFP_KERNEL); 8229 if (!phba->sli4_hba.nvme_wq) { 8230 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8231 "2581 Failed allocate memory for " 8232 "fast-path NVME WQ record array\n"); 8233 goto out_error; 8234 } 8235 8236 /* 8237 * Since the first EQ can have multiple CQs associated with it, 8238 * this array is used to quickly see if we have a NVME fast-path 8239 * CQ match. 8240 */ 8241 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8242 sizeof(uint16_t), 8243 GFP_KERNEL); 8244 if (!phba->sli4_hba.nvme_cq_map) { 8245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8246 "6078 Failed allocate memory for " 8247 "fast-path CQ map\n"); 8248 goto out_error; 8249 } 8250 8251 if (phba->nvmet_support) { 8252 phba->sli4_hba.nvmet_cqset = kcalloc( 8253 phba->cfg_nvmet_mrq, 8254 sizeof(struct lpfc_queue *), 8255 GFP_KERNEL); 8256 if (!phba->sli4_hba.nvmet_cqset) { 8257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8258 "3121 Fail allocate memory for " 8259 "fast-path CQ set array\n"); 8260 goto out_error; 8261 } 8262 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8263 phba->cfg_nvmet_mrq, 8264 sizeof(struct lpfc_queue *), 8265 GFP_KERNEL); 8266 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8268 "3122 Fail allocate memory for " 8269 "fast-path RQ set hdr array\n"); 8270 goto out_error; 8271 } 8272 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8273 phba->cfg_nvmet_mrq, 8274 sizeof(struct lpfc_queue *), 8275 GFP_KERNEL); 8276 if (!phba->sli4_hba.nvmet_mrq_data) { 8277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8278 "3124 Fail allocate memory for " 8279 "fast-path RQ set data array\n"); 8280 goto out_error; 8281 } 8282 } 8283 } 8284 8285 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8286 8287 /* Create HBA Event Queues (EQs) */ 8288 for (idx = 0; idx < io_channel; idx++) { 8289 /* Create EQs */ 8290 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8291 phba->sli4_hba.eq_esize, 8292 phba->sli4_hba.eq_ecount); 8293 if (!qdesc) { 8294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8295 "0497 Failed allocate EQ (%d)\n", idx); 8296 goto out_error; 8297 } 8298 qdesc->qe_valid = 1; 8299 phba->sli4_hba.hba_eq[idx] = qdesc; 8300 } 8301 8302 /* FCP and NVME io channels are not required to be balanced */ 8303 8304 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8305 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8306 goto out_error; 8307 8308 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8309 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8310 goto out_error; 8311 8312 if (phba->nvmet_support) { 8313 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8314 qdesc = lpfc_sli4_queue_alloc(phba, 8315 LPFC_DEFAULT_PAGE_SIZE, 8316 phba->sli4_hba.cq_esize, 8317 phba->sli4_hba.cq_ecount); 8318 if (!qdesc) { 8319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8320 "3142 Failed allocate NVME " 8321 "CQ Set (%d)\n", idx); 8322 goto out_error; 8323 } 8324 qdesc->qe_valid = 1; 8325 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8326 } 8327 } 8328 8329 /* 8330 * Create Slow Path Completion Queues (CQs) 8331 */ 8332 8333 /* Create slow-path Mailbox Command Complete Queue */ 8334 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8335 phba->sli4_hba.cq_esize, 8336 phba->sli4_hba.cq_ecount); 8337 if (!qdesc) { 8338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8339 "0500 Failed allocate slow-path mailbox CQ\n"); 8340 goto out_error; 8341 } 8342 qdesc->qe_valid = 1; 8343 phba->sli4_hba.mbx_cq = qdesc; 8344 8345 /* Create slow-path ELS Complete Queue */ 8346 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8347 phba->sli4_hba.cq_esize, 8348 phba->sli4_hba.cq_ecount); 8349 if (!qdesc) { 8350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8351 "0501 Failed allocate slow-path ELS CQ\n"); 8352 goto out_error; 8353 } 8354 qdesc->qe_valid = 1; 8355 phba->sli4_hba.els_cq = qdesc; 8356 8357 8358 /* 8359 * Create Slow Path Work Queues (WQs) 8360 */ 8361 8362 /* Create Mailbox Command Queue */ 8363 8364 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8365 phba->sli4_hba.mq_esize, 8366 phba->sli4_hba.mq_ecount); 8367 if (!qdesc) { 8368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8369 "0505 Failed allocate slow-path MQ\n"); 8370 goto out_error; 8371 } 8372 phba->sli4_hba.mbx_wq = qdesc; 8373 8374 /* 8375 * Create ELS Work Queues 8376 */ 8377 8378 /* Create slow-path ELS Work Queue */ 8379 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8380 phba->sli4_hba.wq_esize, 8381 phba->sli4_hba.wq_ecount); 8382 if (!qdesc) { 8383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8384 "0504 Failed allocate slow-path ELS WQ\n"); 8385 goto out_error; 8386 } 8387 phba->sli4_hba.els_wq = qdesc; 8388 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8389 8390 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8391 /* Create NVME LS Complete Queue */ 8392 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8393 phba->sli4_hba.cq_esize, 8394 phba->sli4_hba.cq_ecount); 8395 if (!qdesc) { 8396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8397 "6079 Failed allocate NVME LS CQ\n"); 8398 goto out_error; 8399 } 8400 qdesc->qe_valid = 1; 8401 phba->sli4_hba.nvmels_cq = qdesc; 8402 8403 /* Create NVME LS Work Queue */ 8404 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8405 phba->sli4_hba.wq_esize, 8406 phba->sli4_hba.wq_ecount); 8407 if (!qdesc) { 8408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8409 "6080 Failed allocate NVME LS WQ\n"); 8410 goto out_error; 8411 } 8412 phba->sli4_hba.nvmels_wq = qdesc; 8413 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8414 } 8415 8416 /* 8417 * Create Receive Queue (RQ) 8418 */ 8419 8420 /* Create Receive Queue for header */ 8421 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8422 phba->sli4_hba.rq_esize, 8423 phba->sli4_hba.rq_ecount); 8424 if (!qdesc) { 8425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8426 "0506 Failed allocate receive HRQ\n"); 8427 goto out_error; 8428 } 8429 phba->sli4_hba.hdr_rq = qdesc; 8430 8431 /* Create Receive Queue for data */ 8432 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8433 phba->sli4_hba.rq_esize, 8434 phba->sli4_hba.rq_ecount); 8435 if (!qdesc) { 8436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8437 "0507 Failed allocate receive DRQ\n"); 8438 goto out_error; 8439 } 8440 phba->sli4_hba.dat_rq = qdesc; 8441 8442 if (phba->nvmet_support) { 8443 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8444 /* Create NVMET Receive Queue for header */ 8445 qdesc = lpfc_sli4_queue_alloc(phba, 8446 LPFC_DEFAULT_PAGE_SIZE, 8447 phba->sli4_hba.rq_esize, 8448 LPFC_NVMET_RQE_DEF_COUNT); 8449 if (!qdesc) { 8450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8451 "3146 Failed allocate " 8452 "receive HRQ\n"); 8453 goto out_error; 8454 } 8455 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8456 8457 /* Only needed for header of RQ pair */ 8458 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8459 GFP_KERNEL); 8460 if (qdesc->rqbp == NULL) { 8461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8462 "6131 Failed allocate " 8463 "Header RQBP\n"); 8464 goto out_error; 8465 } 8466 8467 /* Put list in known state in case driver load fails. */ 8468 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8469 8470 /* Create NVMET Receive Queue for data */ 8471 qdesc = lpfc_sli4_queue_alloc(phba, 8472 LPFC_DEFAULT_PAGE_SIZE, 8473 phba->sli4_hba.rq_esize, 8474 LPFC_NVMET_RQE_DEF_COUNT); 8475 if (!qdesc) { 8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8477 "3156 Failed allocate " 8478 "receive DRQ\n"); 8479 goto out_error; 8480 } 8481 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8482 } 8483 } 8484 8485 /* Create the Queues needed for Flash Optimized Fabric operations */ 8486 if (phba->cfg_fof) 8487 lpfc_fof_queue_create(phba); 8488 return 0; 8489 8490 out_error: 8491 lpfc_sli4_queue_destroy(phba); 8492 return -ENOMEM; 8493 } 8494 8495 static inline void 8496 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8497 { 8498 if (*qp != NULL) { 8499 lpfc_sli4_queue_free(*qp); 8500 *qp = NULL; 8501 } 8502 } 8503 8504 static inline void 8505 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8506 { 8507 int idx; 8508 8509 if (*qs == NULL) 8510 return; 8511 8512 for (idx = 0; idx < max; idx++) 8513 __lpfc_sli4_release_queue(&(*qs)[idx]); 8514 8515 kfree(*qs); 8516 *qs = NULL; 8517 } 8518 8519 static inline void 8520 lpfc_sli4_release_queue_map(uint16_t **qmap) 8521 { 8522 if (*qmap != NULL) { 8523 kfree(*qmap); 8524 *qmap = NULL; 8525 } 8526 } 8527 8528 /** 8529 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8530 * @phba: pointer to lpfc hba data structure. 8531 * 8532 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8533 * operation. 8534 * 8535 * Return codes 8536 * 0 - successful 8537 * -ENOMEM - No available memory 8538 * -EIO - The mailbox failed to complete successfully. 8539 **/ 8540 void 8541 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8542 { 8543 if (phba->cfg_fof) 8544 lpfc_fof_queue_destroy(phba); 8545 8546 /* Release HBA eqs */ 8547 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8548 8549 /* Release FCP cqs */ 8550 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8551 phba->cfg_fcp_io_channel); 8552 8553 /* Release FCP wqs */ 8554 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8555 phba->cfg_fcp_io_channel); 8556 8557 /* Release FCP CQ mapping array */ 8558 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8559 8560 /* Release NVME cqs */ 8561 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8562 phba->cfg_nvme_io_channel); 8563 8564 /* Release NVME wqs */ 8565 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8566 phba->cfg_nvme_io_channel); 8567 8568 /* Release NVME CQ mapping array */ 8569 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8570 8571 if (phba->nvmet_support) { 8572 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8573 phba->cfg_nvmet_mrq); 8574 8575 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8576 phba->cfg_nvmet_mrq); 8577 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8578 phba->cfg_nvmet_mrq); 8579 } 8580 8581 /* Release mailbox command work queue */ 8582 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8583 8584 /* Release ELS work queue */ 8585 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8586 8587 /* Release ELS work queue */ 8588 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8589 8590 /* Release unsolicited receive queue */ 8591 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8592 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8593 8594 /* Release ELS complete queue */ 8595 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8596 8597 /* Release NVME LS complete queue */ 8598 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8599 8600 /* Release mailbox command complete queue */ 8601 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8602 8603 /* Everything on this list has been freed */ 8604 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8605 } 8606 8607 int 8608 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8609 { 8610 struct lpfc_rqb *rqbp; 8611 struct lpfc_dmabuf *h_buf; 8612 struct rqb_dmabuf *rqb_buffer; 8613 8614 rqbp = rq->rqbp; 8615 while (!list_empty(&rqbp->rqb_buffer_list)) { 8616 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8617 struct lpfc_dmabuf, list); 8618 8619 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8620 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8621 rqbp->buffer_count--; 8622 } 8623 return 1; 8624 } 8625 8626 static int 8627 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8628 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8629 int qidx, uint32_t qtype) 8630 { 8631 struct lpfc_sli_ring *pring; 8632 int rc; 8633 8634 if (!eq || !cq || !wq) { 8635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8636 "6085 Fast-path %s (%d) not allocated\n", 8637 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8638 return -ENOMEM; 8639 } 8640 8641 /* create the Cq first */ 8642 rc = lpfc_cq_create(phba, cq, eq, 8643 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8644 if (rc) { 8645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8646 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8647 qidx, (uint32_t)rc); 8648 return rc; 8649 } 8650 cq->chann = qidx; 8651 8652 if (qtype != LPFC_MBOX) { 8653 /* Setup nvme_cq_map for fast lookup */ 8654 if (cq_map) 8655 *cq_map = cq->queue_id; 8656 8657 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8658 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8659 qidx, cq->queue_id, qidx, eq->queue_id); 8660 8661 /* create the wq */ 8662 rc = lpfc_wq_create(phba, wq, cq, qtype); 8663 if (rc) { 8664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8665 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8666 qidx, (uint32_t)rc); 8667 /* no need to tear down cq - caller will do so */ 8668 return rc; 8669 } 8670 wq->chann = qidx; 8671 8672 /* Bind this CQ/WQ to the NVME ring */ 8673 pring = wq->pring; 8674 pring->sli.sli4.wqp = (void *)wq; 8675 cq->pring = pring; 8676 8677 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8678 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8679 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8680 } else { 8681 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8682 if (rc) { 8683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8684 "0539 Failed setup of slow-path MQ: " 8685 "rc = 0x%x\n", rc); 8686 /* no need to tear down cq - caller will do so */ 8687 return rc; 8688 } 8689 8690 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8691 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8692 phba->sli4_hba.mbx_wq->queue_id, 8693 phba->sli4_hba.mbx_cq->queue_id); 8694 } 8695 8696 return 0; 8697 } 8698 8699 /** 8700 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8701 * @phba: pointer to lpfc hba data structure. 8702 * 8703 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8704 * operation. 8705 * 8706 * Return codes 8707 * 0 - successful 8708 * -ENOMEM - No available memory 8709 * -EIO - The mailbox failed to complete successfully. 8710 **/ 8711 int 8712 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8713 { 8714 uint32_t shdr_status, shdr_add_status; 8715 union lpfc_sli4_cfg_shdr *shdr; 8716 LPFC_MBOXQ_t *mboxq; 8717 int qidx; 8718 uint32_t length, io_channel; 8719 int rc = -ENOMEM; 8720 8721 /* Check for dual-ULP support */ 8722 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8723 if (!mboxq) { 8724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8725 "3249 Unable to allocate memory for " 8726 "QUERY_FW_CFG mailbox command\n"); 8727 return -ENOMEM; 8728 } 8729 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8730 sizeof(struct lpfc_sli4_cfg_mhdr)); 8731 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8732 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8733 length, LPFC_SLI4_MBX_EMBED); 8734 8735 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8736 8737 shdr = (union lpfc_sli4_cfg_shdr *) 8738 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8739 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8740 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8741 if (shdr_status || shdr_add_status || rc) { 8742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8743 "3250 QUERY_FW_CFG mailbox failed with status " 8744 "x%x add_status x%x, mbx status x%x\n", 8745 shdr_status, shdr_add_status, rc); 8746 if (rc != MBX_TIMEOUT) 8747 mempool_free(mboxq, phba->mbox_mem_pool); 8748 rc = -ENXIO; 8749 goto out_error; 8750 } 8751 8752 phba->sli4_hba.fw_func_mode = 8753 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8754 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8755 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8756 phba->sli4_hba.physical_port = 8757 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8758 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8759 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8760 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8761 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8762 8763 if (rc != MBX_TIMEOUT) 8764 mempool_free(mboxq, phba->mbox_mem_pool); 8765 8766 /* 8767 * Set up HBA Event Queues (EQs) 8768 */ 8769 io_channel = phba->io_channel_irqs; 8770 8771 /* Set up HBA event queue */ 8772 if (io_channel && !phba->sli4_hba.hba_eq) { 8773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8774 "3147 Fast-path EQs not allocated\n"); 8775 rc = -ENOMEM; 8776 goto out_error; 8777 } 8778 for (qidx = 0; qidx < io_channel; qidx++) { 8779 if (!phba->sli4_hba.hba_eq[qidx]) { 8780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8781 "0522 Fast-path EQ (%d) not " 8782 "allocated\n", qidx); 8783 rc = -ENOMEM; 8784 goto out_destroy; 8785 } 8786 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8787 phba->cfg_fcp_imax); 8788 if (rc) { 8789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8790 "0523 Failed setup of fast-path EQ " 8791 "(%d), rc = 0x%x\n", qidx, 8792 (uint32_t)rc); 8793 goto out_destroy; 8794 } 8795 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8796 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8797 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8798 } 8799 8800 if (phba->cfg_nvme_io_channel) { 8801 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8803 "6084 Fast-path NVME %s array not allocated\n", 8804 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8805 rc = -ENOMEM; 8806 goto out_destroy; 8807 } 8808 8809 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8810 rc = lpfc_create_wq_cq(phba, 8811 phba->sli4_hba.hba_eq[ 8812 qidx % io_channel], 8813 phba->sli4_hba.nvme_cq[qidx], 8814 phba->sli4_hba.nvme_wq[qidx], 8815 &phba->sli4_hba.nvme_cq_map[qidx], 8816 qidx, LPFC_NVME); 8817 if (rc) { 8818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8819 "6123 Failed to setup fastpath " 8820 "NVME WQ/CQ (%d), rc = 0x%x\n", 8821 qidx, (uint32_t)rc); 8822 goto out_destroy; 8823 } 8824 } 8825 } 8826 8827 if (phba->cfg_fcp_io_channel) { 8828 /* Set up fast-path FCP Response Complete Queue */ 8829 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8831 "3148 Fast-path FCP %s array not allocated\n", 8832 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8833 rc = -ENOMEM; 8834 goto out_destroy; 8835 } 8836 8837 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8838 rc = lpfc_create_wq_cq(phba, 8839 phba->sli4_hba.hba_eq[ 8840 qidx % io_channel], 8841 phba->sli4_hba.fcp_cq[qidx], 8842 phba->sli4_hba.fcp_wq[qidx], 8843 &phba->sli4_hba.fcp_cq_map[qidx], 8844 qidx, LPFC_FCP); 8845 if (rc) { 8846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8847 "0535 Failed to setup fastpath " 8848 "FCP WQ/CQ (%d), rc = 0x%x\n", 8849 qidx, (uint32_t)rc); 8850 goto out_destroy; 8851 } 8852 } 8853 } 8854 8855 /* 8856 * Set up Slow Path Complete Queues (CQs) 8857 */ 8858 8859 /* Set up slow-path MBOX CQ/MQ */ 8860 8861 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8863 "0528 %s not allocated\n", 8864 phba->sli4_hba.mbx_cq ? 8865 "Mailbox WQ" : "Mailbox CQ"); 8866 rc = -ENOMEM; 8867 goto out_destroy; 8868 } 8869 8870 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8871 phba->sli4_hba.mbx_cq, 8872 phba->sli4_hba.mbx_wq, 8873 NULL, 0, LPFC_MBOX); 8874 if (rc) { 8875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8876 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8877 (uint32_t)rc); 8878 goto out_destroy; 8879 } 8880 if (phba->nvmet_support) { 8881 if (!phba->sli4_hba.nvmet_cqset) { 8882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8883 "3165 Fast-path NVME CQ Set " 8884 "array not allocated\n"); 8885 rc = -ENOMEM; 8886 goto out_destroy; 8887 } 8888 if (phba->cfg_nvmet_mrq > 1) { 8889 rc = lpfc_cq_create_set(phba, 8890 phba->sli4_hba.nvmet_cqset, 8891 phba->sli4_hba.hba_eq, 8892 LPFC_WCQ, LPFC_NVMET); 8893 if (rc) { 8894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8895 "3164 Failed setup of NVME CQ " 8896 "Set, rc = 0x%x\n", 8897 (uint32_t)rc); 8898 goto out_destroy; 8899 } 8900 } else { 8901 /* Set up NVMET Receive Complete Queue */ 8902 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8903 phba->sli4_hba.hba_eq[0], 8904 LPFC_WCQ, LPFC_NVMET); 8905 if (rc) { 8906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8907 "6089 Failed setup NVMET CQ: " 8908 "rc = 0x%x\n", (uint32_t)rc); 8909 goto out_destroy; 8910 } 8911 phba->sli4_hba.nvmet_cqset[0]->chann = 0; 8912 8913 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8914 "6090 NVMET CQ setup: cq-id=%d, " 8915 "parent eq-id=%d\n", 8916 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8917 phba->sli4_hba.hba_eq[0]->queue_id); 8918 } 8919 } 8920 8921 /* Set up slow-path ELS WQ/CQ */ 8922 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8924 "0530 ELS %s not allocated\n", 8925 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8926 rc = -ENOMEM; 8927 goto out_destroy; 8928 } 8929 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8930 phba->sli4_hba.els_cq, 8931 phba->sli4_hba.els_wq, 8932 NULL, 0, LPFC_ELS); 8933 if (rc) { 8934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8935 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8936 (uint32_t)rc); 8937 goto out_destroy; 8938 } 8939 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8940 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8941 phba->sli4_hba.els_wq->queue_id, 8942 phba->sli4_hba.els_cq->queue_id); 8943 8944 if (phba->cfg_nvme_io_channel) { 8945 /* Set up NVME LS Complete Queue */ 8946 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8948 "6091 LS %s not allocated\n", 8949 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8950 rc = -ENOMEM; 8951 goto out_destroy; 8952 } 8953 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8954 phba->sli4_hba.nvmels_cq, 8955 phba->sli4_hba.nvmels_wq, 8956 NULL, 0, LPFC_NVME_LS); 8957 if (rc) { 8958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8959 "0529 Failed setup of NVVME LS WQ/CQ: " 8960 "rc = 0x%x\n", (uint32_t)rc); 8961 goto out_destroy; 8962 } 8963 8964 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8965 "6096 ELS WQ setup: wq-id=%d, " 8966 "parent cq-id=%d\n", 8967 phba->sli4_hba.nvmels_wq->queue_id, 8968 phba->sli4_hba.nvmels_cq->queue_id); 8969 } 8970 8971 /* 8972 * Create NVMET Receive Queue (RQ) 8973 */ 8974 if (phba->nvmet_support) { 8975 if ((!phba->sli4_hba.nvmet_cqset) || 8976 (!phba->sli4_hba.nvmet_mrq_hdr) || 8977 (!phba->sli4_hba.nvmet_mrq_data)) { 8978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8979 "6130 MRQ CQ Queues not " 8980 "allocated\n"); 8981 rc = -ENOMEM; 8982 goto out_destroy; 8983 } 8984 if (phba->cfg_nvmet_mrq > 1) { 8985 rc = lpfc_mrq_create(phba, 8986 phba->sli4_hba.nvmet_mrq_hdr, 8987 phba->sli4_hba.nvmet_mrq_data, 8988 phba->sli4_hba.nvmet_cqset, 8989 LPFC_NVMET); 8990 if (rc) { 8991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8992 "6098 Failed setup of NVMET " 8993 "MRQ: rc = 0x%x\n", 8994 (uint32_t)rc); 8995 goto out_destroy; 8996 } 8997 8998 } else { 8999 rc = lpfc_rq_create(phba, 9000 phba->sli4_hba.nvmet_mrq_hdr[0], 9001 phba->sli4_hba.nvmet_mrq_data[0], 9002 phba->sli4_hba.nvmet_cqset[0], 9003 LPFC_NVMET); 9004 if (rc) { 9005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9006 "6057 Failed setup of NVMET " 9007 "Receive Queue: rc = 0x%x\n", 9008 (uint32_t)rc); 9009 goto out_destroy; 9010 } 9011 9012 lpfc_printf_log( 9013 phba, KERN_INFO, LOG_INIT, 9014 "6099 NVMET RQ setup: hdr-rq-id=%d, " 9015 "dat-rq-id=%d parent cq-id=%d\n", 9016 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 9017 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 9018 phba->sli4_hba.nvmet_cqset[0]->queue_id); 9019 9020 } 9021 } 9022 9023 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 9024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9025 "0540 Receive Queue not allocated\n"); 9026 rc = -ENOMEM; 9027 goto out_destroy; 9028 } 9029 9030 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 9031 phba->sli4_hba.els_cq, LPFC_USOL); 9032 if (rc) { 9033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9034 "0541 Failed setup of Receive Queue: " 9035 "rc = 0x%x\n", (uint32_t)rc); 9036 goto out_destroy; 9037 } 9038 9039 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9040 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 9041 "parent cq-id=%d\n", 9042 phba->sli4_hba.hdr_rq->queue_id, 9043 phba->sli4_hba.dat_rq->queue_id, 9044 phba->sli4_hba.els_cq->queue_id); 9045 9046 if (phba->cfg_fof) { 9047 rc = lpfc_fof_queue_setup(phba); 9048 if (rc) { 9049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9050 "0549 Failed setup of FOF Queues: " 9051 "rc = 0x%x\n", rc); 9052 goto out_destroy; 9053 } 9054 } 9055 9056 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 9057 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 9058 phba->cfg_fcp_imax); 9059 9060 return 0; 9061 9062 out_destroy: 9063 lpfc_sli4_queue_unset(phba); 9064 out_error: 9065 return rc; 9066 } 9067 9068 /** 9069 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 9070 * @phba: pointer to lpfc hba data structure. 9071 * 9072 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 9073 * operation. 9074 * 9075 * Return codes 9076 * 0 - successful 9077 * -ENOMEM - No available memory 9078 * -EIO - The mailbox failed to complete successfully. 9079 **/ 9080 void 9081 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 9082 { 9083 int qidx; 9084 9085 /* Unset the queues created for Flash Optimized Fabric operations */ 9086 if (phba->cfg_fof) 9087 lpfc_fof_queue_destroy(phba); 9088 9089 /* Unset mailbox command work queue */ 9090 if (phba->sli4_hba.mbx_wq) 9091 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 9092 9093 /* Unset NVME LS work queue */ 9094 if (phba->sli4_hba.nvmels_wq) 9095 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 9096 9097 /* Unset ELS work queue */ 9098 if (phba->sli4_hba.els_wq) 9099 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 9100 9101 /* Unset unsolicited receive queue */ 9102 if (phba->sli4_hba.hdr_rq) 9103 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 9104 phba->sli4_hba.dat_rq); 9105 9106 /* Unset FCP work queue */ 9107 if (phba->sli4_hba.fcp_wq) 9108 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9109 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 9110 9111 /* Unset NVME work queue */ 9112 if (phba->sli4_hba.nvme_wq) { 9113 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 9114 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 9115 } 9116 9117 /* Unset mailbox command complete queue */ 9118 if (phba->sli4_hba.mbx_cq) 9119 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 9120 9121 /* Unset ELS complete queue */ 9122 if (phba->sli4_hba.els_cq) 9123 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 9124 9125 /* Unset NVME LS complete queue */ 9126 if (phba->sli4_hba.nvmels_cq) 9127 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 9128 9129 /* Unset NVME response complete queue */ 9130 if (phba->sli4_hba.nvme_cq) 9131 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 9132 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 9133 9134 if (phba->nvmet_support) { 9135 /* Unset NVMET MRQ queue */ 9136 if (phba->sli4_hba.nvmet_mrq_hdr) { 9137 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9138 lpfc_rq_destroy( 9139 phba, 9140 phba->sli4_hba.nvmet_mrq_hdr[qidx], 9141 phba->sli4_hba.nvmet_mrq_data[qidx]); 9142 } 9143 9144 /* Unset NVMET CQ Set complete queue */ 9145 if (phba->sli4_hba.nvmet_cqset) { 9146 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9147 lpfc_cq_destroy( 9148 phba, phba->sli4_hba.nvmet_cqset[qidx]); 9149 } 9150 } 9151 9152 /* Unset FCP response complete queue */ 9153 if (phba->sli4_hba.fcp_cq) 9154 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9155 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9156 9157 /* Unset fast-path event queue */ 9158 if (phba->sli4_hba.hba_eq) 9159 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9160 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9161 } 9162 9163 /** 9164 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9165 * @phba: pointer to lpfc hba data structure. 9166 * 9167 * This routine is invoked to allocate and set up a pool of completion queue 9168 * events. The body of the completion queue event is a completion queue entry 9169 * CQE. For now, this pool is used for the interrupt service routine to queue 9170 * the following HBA completion queue events for the worker thread to process: 9171 * - Mailbox asynchronous events 9172 * - Receive queue completion unsolicited events 9173 * Later, this can be used for all the slow-path events. 9174 * 9175 * Return codes 9176 * 0 - successful 9177 * -ENOMEM - No available memory 9178 **/ 9179 static int 9180 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9181 { 9182 struct lpfc_cq_event *cq_event; 9183 int i; 9184 9185 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9186 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9187 if (!cq_event) 9188 goto out_pool_create_fail; 9189 list_add_tail(&cq_event->list, 9190 &phba->sli4_hba.sp_cqe_event_pool); 9191 } 9192 return 0; 9193 9194 out_pool_create_fail: 9195 lpfc_sli4_cq_event_pool_destroy(phba); 9196 return -ENOMEM; 9197 } 9198 9199 /** 9200 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9201 * @phba: pointer to lpfc hba data structure. 9202 * 9203 * This routine is invoked to free the pool of completion queue events at 9204 * driver unload time. Note that, it is the responsibility of the driver 9205 * cleanup routine to free all the outstanding completion-queue events 9206 * allocated from this pool back into the pool before invoking this routine 9207 * to destroy the pool. 9208 **/ 9209 static void 9210 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9211 { 9212 struct lpfc_cq_event *cq_event, *next_cq_event; 9213 9214 list_for_each_entry_safe(cq_event, next_cq_event, 9215 &phba->sli4_hba.sp_cqe_event_pool, list) { 9216 list_del(&cq_event->list); 9217 kfree(cq_event); 9218 } 9219 } 9220 9221 /** 9222 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9223 * @phba: pointer to lpfc hba data structure. 9224 * 9225 * This routine is the lock free version of the API invoked to allocate a 9226 * completion-queue event from the free pool. 9227 * 9228 * Return: Pointer to the newly allocated completion-queue event if successful 9229 * NULL otherwise. 9230 **/ 9231 struct lpfc_cq_event * 9232 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9233 { 9234 struct lpfc_cq_event *cq_event = NULL; 9235 9236 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9237 struct lpfc_cq_event, list); 9238 return cq_event; 9239 } 9240 9241 /** 9242 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9243 * @phba: pointer to lpfc hba data structure. 9244 * 9245 * This routine is the lock version of the API invoked to allocate a 9246 * completion-queue event from the free pool. 9247 * 9248 * Return: Pointer to the newly allocated completion-queue event if successful 9249 * NULL otherwise. 9250 **/ 9251 struct lpfc_cq_event * 9252 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9253 { 9254 struct lpfc_cq_event *cq_event; 9255 unsigned long iflags; 9256 9257 spin_lock_irqsave(&phba->hbalock, iflags); 9258 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9259 spin_unlock_irqrestore(&phba->hbalock, iflags); 9260 return cq_event; 9261 } 9262 9263 /** 9264 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9265 * @phba: pointer to lpfc hba data structure. 9266 * @cq_event: pointer to the completion queue event to be freed. 9267 * 9268 * This routine is the lock free version of the API invoked to release a 9269 * completion-queue event back into the free pool. 9270 **/ 9271 void 9272 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9273 struct lpfc_cq_event *cq_event) 9274 { 9275 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9276 } 9277 9278 /** 9279 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9280 * @phba: pointer to lpfc hba data structure. 9281 * @cq_event: pointer to the completion queue event to be freed. 9282 * 9283 * This routine is the lock version of the API invoked to release a 9284 * completion-queue event back into the free pool. 9285 **/ 9286 void 9287 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9288 struct lpfc_cq_event *cq_event) 9289 { 9290 unsigned long iflags; 9291 spin_lock_irqsave(&phba->hbalock, iflags); 9292 __lpfc_sli4_cq_event_release(phba, cq_event); 9293 spin_unlock_irqrestore(&phba->hbalock, iflags); 9294 } 9295 9296 /** 9297 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9298 * @phba: pointer to lpfc hba data structure. 9299 * 9300 * This routine is to free all the pending completion-queue events to the 9301 * back into the free pool for device reset. 9302 **/ 9303 static void 9304 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9305 { 9306 LIST_HEAD(cqelist); 9307 struct lpfc_cq_event *cqe; 9308 unsigned long iflags; 9309 9310 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9311 spin_lock_irqsave(&phba->hbalock, iflags); 9312 /* Pending FCP XRI abort events */ 9313 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9314 &cqelist); 9315 /* Pending ELS XRI abort events */ 9316 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9317 &cqelist); 9318 /* Pending asynnc events */ 9319 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9320 &cqelist); 9321 spin_unlock_irqrestore(&phba->hbalock, iflags); 9322 9323 while (!list_empty(&cqelist)) { 9324 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9325 lpfc_sli4_cq_event_release(phba, cqe); 9326 } 9327 } 9328 9329 /** 9330 * lpfc_pci_function_reset - Reset pci function. 9331 * @phba: pointer to lpfc hba data structure. 9332 * 9333 * This routine is invoked to request a PCI function reset. It will destroys 9334 * all resources assigned to the PCI function which originates this request. 9335 * 9336 * Return codes 9337 * 0 - successful 9338 * -ENOMEM - No available memory 9339 * -EIO - The mailbox failed to complete successfully. 9340 **/ 9341 int 9342 lpfc_pci_function_reset(struct lpfc_hba *phba) 9343 { 9344 LPFC_MBOXQ_t *mboxq; 9345 uint32_t rc = 0, if_type; 9346 uint32_t shdr_status, shdr_add_status; 9347 uint32_t rdy_chk; 9348 uint32_t port_reset = 0; 9349 union lpfc_sli4_cfg_shdr *shdr; 9350 struct lpfc_register reg_data; 9351 uint16_t devid; 9352 9353 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9354 switch (if_type) { 9355 case LPFC_SLI_INTF_IF_TYPE_0: 9356 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9357 GFP_KERNEL); 9358 if (!mboxq) { 9359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9360 "0494 Unable to allocate memory for " 9361 "issuing SLI_FUNCTION_RESET mailbox " 9362 "command\n"); 9363 return -ENOMEM; 9364 } 9365 9366 /* Setup PCI function reset mailbox-ioctl command */ 9367 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9368 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9369 LPFC_SLI4_MBX_EMBED); 9370 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9371 shdr = (union lpfc_sli4_cfg_shdr *) 9372 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9373 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9374 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9375 &shdr->response); 9376 if (rc != MBX_TIMEOUT) 9377 mempool_free(mboxq, phba->mbox_mem_pool); 9378 if (shdr_status || shdr_add_status || rc) { 9379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9380 "0495 SLI_FUNCTION_RESET mailbox " 9381 "failed with status x%x add_status x%x," 9382 " mbx status x%x\n", 9383 shdr_status, shdr_add_status, rc); 9384 rc = -ENXIO; 9385 } 9386 break; 9387 case LPFC_SLI_INTF_IF_TYPE_2: 9388 case LPFC_SLI_INTF_IF_TYPE_6: 9389 wait: 9390 /* 9391 * Poll the Port Status Register and wait for RDY for 9392 * up to 30 seconds. If the port doesn't respond, treat 9393 * it as an error. 9394 */ 9395 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9396 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9397 STATUSregaddr, ®_data.word0)) { 9398 rc = -ENODEV; 9399 goto out; 9400 } 9401 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9402 break; 9403 msleep(20); 9404 } 9405 9406 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9407 phba->work_status[0] = readl( 9408 phba->sli4_hba.u.if_type2.ERR1regaddr); 9409 phba->work_status[1] = readl( 9410 phba->sli4_hba.u.if_type2.ERR2regaddr); 9411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9412 "2890 Port not ready, port status reg " 9413 "0x%x error 1=0x%x, error 2=0x%x\n", 9414 reg_data.word0, 9415 phba->work_status[0], 9416 phba->work_status[1]); 9417 rc = -ENODEV; 9418 goto out; 9419 } 9420 9421 if (!port_reset) { 9422 /* 9423 * Reset the port now 9424 */ 9425 reg_data.word0 = 0; 9426 bf_set(lpfc_sliport_ctrl_end, ®_data, 9427 LPFC_SLIPORT_LITTLE_ENDIAN); 9428 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9429 LPFC_SLIPORT_INIT_PORT); 9430 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9431 CTRLregaddr); 9432 /* flush */ 9433 pci_read_config_word(phba->pcidev, 9434 PCI_DEVICE_ID, &devid); 9435 9436 port_reset = 1; 9437 msleep(20); 9438 goto wait; 9439 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9440 rc = -ENODEV; 9441 goto out; 9442 } 9443 break; 9444 9445 case LPFC_SLI_INTF_IF_TYPE_1: 9446 default: 9447 break; 9448 } 9449 9450 out: 9451 /* Catch the not-ready port failure after a port reset. */ 9452 if (rc) { 9453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9454 "3317 HBA not functional: IP Reset Failed " 9455 "try: echo fw_reset > board_mode\n"); 9456 rc = -ENODEV; 9457 } 9458 9459 return rc; 9460 } 9461 9462 /** 9463 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9464 * @phba: pointer to lpfc hba data structure. 9465 * 9466 * This routine is invoked to set up the PCI device memory space for device 9467 * with SLI-4 interface spec. 9468 * 9469 * Return codes 9470 * 0 - successful 9471 * other values - error 9472 **/ 9473 static int 9474 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9475 { 9476 struct pci_dev *pdev; 9477 unsigned long bar0map_len, bar1map_len, bar2map_len; 9478 int error = -ENODEV; 9479 uint32_t if_type; 9480 9481 /* Obtain PCI device reference */ 9482 if (!phba->pcidev) 9483 return error; 9484 else 9485 pdev = phba->pcidev; 9486 9487 /* Set the device DMA mask size */ 9488 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9489 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9490 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9491 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9492 return error; 9493 } 9494 } 9495 9496 /* 9497 * The BARs and register set definitions and offset locations are 9498 * dependent on the if_type. 9499 */ 9500 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9501 &phba->sli4_hba.sli_intf.word0)) { 9502 return error; 9503 } 9504 9505 /* There is no SLI3 failback for SLI4 devices. */ 9506 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9507 LPFC_SLI_INTF_VALID) { 9508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9509 "2894 SLI_INTF reg contents invalid " 9510 "sli_intf reg 0x%x\n", 9511 phba->sli4_hba.sli_intf.word0); 9512 return error; 9513 } 9514 9515 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9516 /* 9517 * Get the bus address of SLI4 device Bar regions and the 9518 * number of bytes required by each mapping. The mapping of the 9519 * particular PCI BARs regions is dependent on the type of 9520 * SLI4 device. 9521 */ 9522 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9523 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9524 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9525 9526 /* 9527 * Map SLI4 PCI Config Space Register base to a kernel virtual 9528 * addr 9529 */ 9530 phba->sli4_hba.conf_regs_memmap_p = 9531 ioremap(phba->pci_bar0_map, bar0map_len); 9532 if (!phba->sli4_hba.conf_regs_memmap_p) { 9533 dev_printk(KERN_ERR, &pdev->dev, 9534 "ioremap failed for SLI4 PCI config " 9535 "registers.\n"); 9536 goto out; 9537 } 9538 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9539 /* Set up BAR0 PCI config space register memory map */ 9540 lpfc_sli4_bar0_register_memmap(phba, if_type); 9541 } else { 9542 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9543 bar0map_len = pci_resource_len(pdev, 1); 9544 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 9545 dev_printk(KERN_ERR, &pdev->dev, 9546 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9547 goto out; 9548 } 9549 phba->sli4_hba.conf_regs_memmap_p = 9550 ioremap(phba->pci_bar0_map, bar0map_len); 9551 if (!phba->sli4_hba.conf_regs_memmap_p) { 9552 dev_printk(KERN_ERR, &pdev->dev, 9553 "ioremap failed for SLI4 PCI config " 9554 "registers.\n"); 9555 goto out; 9556 } 9557 lpfc_sli4_bar0_register_memmap(phba, if_type); 9558 } 9559 9560 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 9561 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) { 9562 /* 9563 * Map SLI4 if type 0 HBA Control Register base to a 9564 * kernel virtual address and setup the registers. 9565 */ 9566 phba->pci_bar1_map = pci_resource_start(pdev, 9567 PCI_64BIT_BAR2); 9568 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9569 phba->sli4_hba.ctrl_regs_memmap_p = 9570 ioremap(phba->pci_bar1_map, 9571 bar1map_len); 9572 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9573 dev_err(&pdev->dev, 9574 "ioremap failed for SLI4 HBA " 9575 "control registers.\n"); 9576 error = -ENOMEM; 9577 goto out_iounmap_conf; 9578 } 9579 phba->pci_bar2_memmap_p = 9580 phba->sli4_hba.ctrl_regs_memmap_p; 9581 lpfc_sli4_bar1_register_memmap(phba, if_type); 9582 } else { 9583 error = -ENOMEM; 9584 goto out_iounmap_conf; 9585 } 9586 } 9587 9588 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) && 9589 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9590 /* 9591 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel 9592 * virtual address and setup the registers. 9593 */ 9594 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9595 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9596 phba->sli4_hba.drbl_regs_memmap_p = 9597 ioremap(phba->pci_bar1_map, bar1map_len); 9598 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9599 dev_err(&pdev->dev, 9600 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9601 goto out_iounmap_conf; 9602 } 9603 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9604 lpfc_sli4_bar1_register_memmap(phba, if_type); 9605 } 9606 9607 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 9608 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) { 9609 /* 9610 * Map SLI4 if type 0 HBA Doorbell Register base to 9611 * a kernel virtual address and setup the registers. 9612 */ 9613 phba->pci_bar2_map = pci_resource_start(pdev, 9614 PCI_64BIT_BAR4); 9615 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9616 phba->sli4_hba.drbl_regs_memmap_p = 9617 ioremap(phba->pci_bar2_map, 9618 bar2map_len); 9619 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9620 dev_err(&pdev->dev, 9621 "ioremap failed for SLI4 HBA" 9622 " doorbell registers.\n"); 9623 error = -ENOMEM; 9624 goto out_iounmap_ctrl; 9625 } 9626 phba->pci_bar4_memmap_p = 9627 phba->sli4_hba.drbl_regs_memmap_p; 9628 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9629 if (error) 9630 goto out_iounmap_all; 9631 } else { 9632 error = -ENOMEM; 9633 goto out_iounmap_all; 9634 } 9635 } 9636 9637 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 && 9638 pci_resource_start(pdev, PCI_64BIT_BAR4)) { 9639 /* 9640 * Map SLI4 if type 6 HBA DPP Register base to a kernel 9641 * virtual address and setup the registers. 9642 */ 9643 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9644 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9645 phba->sli4_hba.dpp_regs_memmap_p = 9646 ioremap(phba->pci_bar2_map, bar2map_len); 9647 if (!phba->sli4_hba.dpp_regs_memmap_p) { 9648 dev_err(&pdev->dev, 9649 "ioremap failed for SLI4 HBA dpp registers.\n"); 9650 goto out_iounmap_ctrl; 9651 } 9652 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p; 9653 } 9654 9655 /* Set up the EQ/CQ register handeling functions now */ 9656 switch (if_type) { 9657 case LPFC_SLI_INTF_IF_TYPE_0: 9658 case LPFC_SLI_INTF_IF_TYPE_2: 9659 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr; 9660 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release; 9661 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release; 9662 break; 9663 case LPFC_SLI_INTF_IF_TYPE_6: 9664 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr; 9665 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release; 9666 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release; 9667 break; 9668 default: 9669 break; 9670 } 9671 9672 return 0; 9673 9674 out_iounmap_all: 9675 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9676 out_iounmap_ctrl: 9677 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9678 out_iounmap_conf: 9679 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9680 out: 9681 return error; 9682 } 9683 9684 /** 9685 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9686 * @phba: pointer to lpfc hba data structure. 9687 * 9688 * This routine is invoked to unset the PCI device memory space for device 9689 * with SLI-4 interface spec. 9690 **/ 9691 static void 9692 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9693 { 9694 uint32_t if_type; 9695 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9696 9697 switch (if_type) { 9698 case LPFC_SLI_INTF_IF_TYPE_0: 9699 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9700 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9701 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9702 break; 9703 case LPFC_SLI_INTF_IF_TYPE_2: 9704 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9705 break; 9706 case LPFC_SLI_INTF_IF_TYPE_6: 9707 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9708 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9709 break; 9710 case LPFC_SLI_INTF_IF_TYPE_1: 9711 default: 9712 dev_printk(KERN_ERR, &phba->pcidev->dev, 9713 "FATAL - unsupported SLI4 interface type - %d\n", 9714 if_type); 9715 break; 9716 } 9717 } 9718 9719 /** 9720 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9721 * @phba: pointer to lpfc hba data structure. 9722 * 9723 * This routine is invoked to enable the MSI-X interrupt vectors to device 9724 * with SLI-3 interface specs. 9725 * 9726 * Return codes 9727 * 0 - successful 9728 * other values - error 9729 **/ 9730 static int 9731 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9732 { 9733 int rc; 9734 LPFC_MBOXQ_t *pmb; 9735 9736 /* Set up MSI-X multi-message vectors */ 9737 rc = pci_alloc_irq_vectors(phba->pcidev, 9738 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9739 if (rc < 0) { 9740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9741 "0420 PCI enable MSI-X failed (%d)\n", rc); 9742 goto vec_fail_out; 9743 } 9744 9745 /* 9746 * Assign MSI-X vectors to interrupt handlers 9747 */ 9748 9749 /* vector-0 is associated to slow-path handler */ 9750 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9751 &lpfc_sli_sp_intr_handler, 0, 9752 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9753 if (rc) { 9754 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9755 "0421 MSI-X slow-path request_irq failed " 9756 "(%d)\n", rc); 9757 goto msi_fail_out; 9758 } 9759 9760 /* vector-1 is associated to fast-path handler */ 9761 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9762 &lpfc_sli_fp_intr_handler, 0, 9763 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9764 9765 if (rc) { 9766 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9767 "0429 MSI-X fast-path request_irq failed " 9768 "(%d)\n", rc); 9769 goto irq_fail_out; 9770 } 9771 9772 /* 9773 * Configure HBA MSI-X attention conditions to messages 9774 */ 9775 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9776 9777 if (!pmb) { 9778 rc = -ENOMEM; 9779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9780 "0474 Unable to allocate memory for issuing " 9781 "MBOX_CONFIG_MSI command\n"); 9782 goto mem_fail_out; 9783 } 9784 rc = lpfc_config_msi(phba, pmb); 9785 if (rc) 9786 goto mbx_fail_out; 9787 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9788 if (rc != MBX_SUCCESS) { 9789 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9790 "0351 Config MSI mailbox command failed, " 9791 "mbxCmd x%x, mbxStatus x%x\n", 9792 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9793 goto mbx_fail_out; 9794 } 9795 9796 /* Free memory allocated for mailbox command */ 9797 mempool_free(pmb, phba->mbox_mem_pool); 9798 return rc; 9799 9800 mbx_fail_out: 9801 /* Free memory allocated for mailbox command */ 9802 mempool_free(pmb, phba->mbox_mem_pool); 9803 9804 mem_fail_out: 9805 /* free the irq already requested */ 9806 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9807 9808 irq_fail_out: 9809 /* free the irq already requested */ 9810 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9811 9812 msi_fail_out: 9813 /* Unconfigure MSI-X capability structure */ 9814 pci_free_irq_vectors(phba->pcidev); 9815 9816 vec_fail_out: 9817 return rc; 9818 } 9819 9820 /** 9821 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9822 * @phba: pointer to lpfc hba data structure. 9823 * 9824 * This routine is invoked to enable the MSI interrupt mode to device with 9825 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9826 * enable the MSI vector. The device driver is responsible for calling the 9827 * request_irq() to register MSI vector with a interrupt the handler, which 9828 * is done in this function. 9829 * 9830 * Return codes 9831 * 0 - successful 9832 * other values - error 9833 */ 9834 static int 9835 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9836 { 9837 int rc; 9838 9839 rc = pci_enable_msi(phba->pcidev); 9840 if (!rc) 9841 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9842 "0462 PCI enable MSI mode success.\n"); 9843 else { 9844 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9845 "0471 PCI enable MSI mode failed (%d)\n", rc); 9846 return rc; 9847 } 9848 9849 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9850 0, LPFC_DRIVER_NAME, phba); 9851 if (rc) { 9852 pci_disable_msi(phba->pcidev); 9853 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9854 "0478 MSI request_irq failed (%d)\n", rc); 9855 } 9856 return rc; 9857 } 9858 9859 /** 9860 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9861 * @phba: pointer to lpfc hba data structure. 9862 * 9863 * This routine is invoked to enable device interrupt and associate driver's 9864 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9865 * spec. Depends on the interrupt mode configured to the driver, the driver 9866 * will try to fallback from the configured interrupt mode to an interrupt 9867 * mode which is supported by the platform, kernel, and device in the order 9868 * of: 9869 * MSI-X -> MSI -> IRQ. 9870 * 9871 * Return codes 9872 * 0 - successful 9873 * other values - error 9874 **/ 9875 static uint32_t 9876 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9877 { 9878 uint32_t intr_mode = LPFC_INTR_ERROR; 9879 int retval; 9880 9881 if (cfg_mode == 2) { 9882 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9883 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9884 if (!retval) { 9885 /* Now, try to enable MSI-X interrupt mode */ 9886 retval = lpfc_sli_enable_msix(phba); 9887 if (!retval) { 9888 /* Indicate initialization to MSI-X mode */ 9889 phba->intr_type = MSIX; 9890 intr_mode = 2; 9891 } 9892 } 9893 } 9894 9895 /* Fallback to MSI if MSI-X initialization failed */ 9896 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9897 retval = lpfc_sli_enable_msi(phba); 9898 if (!retval) { 9899 /* Indicate initialization to MSI mode */ 9900 phba->intr_type = MSI; 9901 intr_mode = 1; 9902 } 9903 } 9904 9905 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9906 if (phba->intr_type == NONE) { 9907 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9908 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9909 if (!retval) { 9910 /* Indicate initialization to INTx mode */ 9911 phba->intr_type = INTx; 9912 intr_mode = 0; 9913 } 9914 } 9915 return intr_mode; 9916 } 9917 9918 /** 9919 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9920 * @phba: pointer to lpfc hba data structure. 9921 * 9922 * This routine is invoked to disable device interrupt and disassociate the 9923 * driver's interrupt handler(s) from interrupt vector(s) to device with 9924 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9925 * release the interrupt vector(s) for the message signaled interrupt. 9926 **/ 9927 static void 9928 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9929 { 9930 int nr_irqs, i; 9931 9932 if (phba->intr_type == MSIX) 9933 nr_irqs = LPFC_MSIX_VECTORS; 9934 else 9935 nr_irqs = 1; 9936 9937 for (i = 0; i < nr_irqs; i++) 9938 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9939 pci_free_irq_vectors(phba->pcidev); 9940 9941 /* Reset interrupt management states */ 9942 phba->intr_type = NONE; 9943 phba->sli.slistat.sli_intr = 0; 9944 } 9945 9946 /** 9947 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9948 * @phba: pointer to lpfc hba data structure. 9949 * @vectors: number of msix vectors allocated. 9950 * 9951 * The routine will figure out the CPU affinity assignment for every 9952 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9953 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9954 * can be associated with. If the vector can be unquely associated with 9955 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9956 * In addition, the CPU to IO channel mapping will be calculated 9957 * and the phba->sli4_hba.cpu_map array will reflect this. 9958 */ 9959 static void 9960 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9961 { 9962 struct lpfc_vector_map_info *cpup; 9963 int index = 0; 9964 int vec = 0; 9965 int cpu; 9966 #ifdef CONFIG_X86 9967 struct cpuinfo_x86 *cpuinfo; 9968 #endif 9969 9970 /* Init cpu_map array */ 9971 memset(phba->sli4_hba.cpu_map, 0xff, 9972 (sizeof(struct lpfc_vector_map_info) * 9973 phba->sli4_hba.num_present_cpu)); 9974 9975 /* Update CPU map with physical id and core id of each CPU */ 9976 cpup = phba->sli4_hba.cpu_map; 9977 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9978 #ifdef CONFIG_X86 9979 cpuinfo = &cpu_data(cpu); 9980 cpup->phys_id = cpuinfo->phys_proc_id; 9981 cpup->core_id = cpuinfo->cpu_core_id; 9982 #else 9983 /* No distinction between CPUs for other platforms */ 9984 cpup->phys_id = 0; 9985 cpup->core_id = 0; 9986 #endif 9987 cpup->channel_id = index; /* For now round robin */ 9988 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9989 vec++; 9990 if (vec >= vectors) 9991 vec = 0; 9992 index++; 9993 if (index >= phba->cfg_fcp_io_channel) 9994 index = 0; 9995 cpup++; 9996 } 9997 } 9998 9999 10000 /** 10001 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 10002 * @phba: pointer to lpfc hba data structure. 10003 * 10004 * This routine is invoked to enable the MSI-X interrupt vectors to device 10005 * with SLI-4 interface spec. 10006 * 10007 * Return codes 10008 * 0 - successful 10009 * other values - error 10010 **/ 10011 static int 10012 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 10013 { 10014 int vectors, rc, index; 10015 char *name; 10016 10017 /* Set up MSI-X multi-message vectors */ 10018 vectors = phba->io_channel_irqs; 10019 if (phba->cfg_fof) 10020 vectors++; 10021 10022 rc = pci_alloc_irq_vectors(phba->pcidev, 10023 (phba->nvmet_support) ? 1 : 2, 10024 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 10025 if (rc < 0) { 10026 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10027 "0484 PCI enable MSI-X failed (%d)\n", rc); 10028 goto vec_fail_out; 10029 } 10030 vectors = rc; 10031 10032 /* Assign MSI-X vectors to interrupt handlers */ 10033 for (index = 0; index < vectors; index++) { 10034 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 10035 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 10036 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 10037 LPFC_DRIVER_HANDLER_NAME"%d", index); 10038 10039 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10040 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10041 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 10042 if (phba->cfg_fof && (index == (vectors - 1))) 10043 rc = request_irq(pci_irq_vector(phba->pcidev, index), 10044 &lpfc_sli4_fof_intr_handler, 0, 10045 name, 10046 &phba->sli4_hba.hba_eq_hdl[index]); 10047 else 10048 rc = request_irq(pci_irq_vector(phba->pcidev, index), 10049 &lpfc_sli4_hba_intr_handler, 0, 10050 name, 10051 &phba->sli4_hba.hba_eq_hdl[index]); 10052 if (rc) { 10053 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10054 "0486 MSI-X fast-path (%d) " 10055 "request_irq failed (%d)\n", index, rc); 10056 goto cfg_fail_out; 10057 } 10058 } 10059 10060 if (phba->cfg_fof) 10061 vectors--; 10062 10063 if (vectors != phba->io_channel_irqs) { 10064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10065 "3238 Reducing IO channels to match number of " 10066 "MSI-X vectors, requested %d got %d\n", 10067 phba->io_channel_irqs, vectors); 10068 if (phba->cfg_fcp_io_channel > vectors) 10069 phba->cfg_fcp_io_channel = vectors; 10070 if (phba->cfg_nvme_io_channel > vectors) 10071 phba->cfg_nvme_io_channel = vectors; 10072 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 10073 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10074 else 10075 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 10076 } 10077 lpfc_cpu_affinity_check(phba, vectors); 10078 10079 return rc; 10080 10081 cfg_fail_out: 10082 /* free the irq already requested */ 10083 for (--index; index >= 0; index--) 10084 free_irq(pci_irq_vector(phba->pcidev, index), 10085 &phba->sli4_hba.hba_eq_hdl[index]); 10086 10087 /* Unconfigure MSI-X capability structure */ 10088 pci_free_irq_vectors(phba->pcidev); 10089 10090 vec_fail_out: 10091 return rc; 10092 } 10093 10094 /** 10095 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 10096 * @phba: pointer to lpfc hba data structure. 10097 * 10098 * This routine is invoked to enable the MSI interrupt mode to device with 10099 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 10100 * to enable the MSI vector. The device driver is responsible for calling 10101 * the request_irq() to register MSI vector with a interrupt the handler, 10102 * which is done in this function. 10103 * 10104 * Return codes 10105 * 0 - successful 10106 * other values - error 10107 **/ 10108 static int 10109 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 10110 { 10111 int rc, index; 10112 10113 rc = pci_enable_msi(phba->pcidev); 10114 if (!rc) 10115 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10116 "0487 PCI enable MSI mode success.\n"); 10117 else { 10118 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10119 "0488 PCI enable MSI mode failed (%d)\n", rc); 10120 return rc; 10121 } 10122 10123 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 10124 0, LPFC_DRIVER_NAME, phba); 10125 if (rc) { 10126 pci_disable_msi(phba->pcidev); 10127 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10128 "0490 MSI request_irq failed (%d)\n", rc); 10129 return rc; 10130 } 10131 10132 for (index = 0; index < phba->io_channel_irqs; index++) { 10133 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10134 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10135 } 10136 10137 if (phba->cfg_fof) { 10138 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10139 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10140 } 10141 return 0; 10142 } 10143 10144 /** 10145 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 10146 * @phba: pointer to lpfc hba data structure. 10147 * 10148 * This routine is invoked to enable device interrupt and associate driver's 10149 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 10150 * interface spec. Depends on the interrupt mode configured to the driver, 10151 * the driver will try to fallback from the configured interrupt mode to an 10152 * interrupt mode which is supported by the platform, kernel, and device in 10153 * the order of: 10154 * MSI-X -> MSI -> IRQ. 10155 * 10156 * Return codes 10157 * 0 - successful 10158 * other values - error 10159 **/ 10160 static uint32_t 10161 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 10162 { 10163 uint32_t intr_mode = LPFC_INTR_ERROR; 10164 int retval, idx; 10165 10166 if (cfg_mode == 2) { 10167 /* Preparation before conf_msi mbox cmd */ 10168 retval = 0; 10169 if (!retval) { 10170 /* Now, try to enable MSI-X interrupt mode */ 10171 retval = lpfc_sli4_enable_msix(phba); 10172 if (!retval) { 10173 /* Indicate initialization to MSI-X mode */ 10174 phba->intr_type = MSIX; 10175 intr_mode = 2; 10176 } 10177 } 10178 } 10179 10180 /* Fallback to MSI if MSI-X initialization failed */ 10181 if (cfg_mode >= 1 && phba->intr_type == NONE) { 10182 retval = lpfc_sli4_enable_msi(phba); 10183 if (!retval) { 10184 /* Indicate initialization to MSI mode */ 10185 phba->intr_type = MSI; 10186 intr_mode = 1; 10187 } 10188 } 10189 10190 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 10191 if (phba->intr_type == NONE) { 10192 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 10193 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 10194 if (!retval) { 10195 struct lpfc_hba_eq_hdl *eqhdl; 10196 10197 /* Indicate initialization to INTx mode */ 10198 phba->intr_type = INTx; 10199 intr_mode = 0; 10200 10201 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 10202 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 10203 eqhdl->idx = idx; 10204 eqhdl->phba = phba; 10205 atomic_set(&eqhdl->hba_eq_in_use, 1); 10206 } 10207 if (phba->cfg_fof) { 10208 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 10209 eqhdl->idx = idx; 10210 eqhdl->phba = phba; 10211 atomic_set(&eqhdl->hba_eq_in_use, 1); 10212 } 10213 } 10214 } 10215 return intr_mode; 10216 } 10217 10218 /** 10219 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 10220 * @phba: pointer to lpfc hba data structure. 10221 * 10222 * This routine is invoked to disable device interrupt and disassociate 10223 * the driver's interrupt handler(s) from interrupt vector(s) to device 10224 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 10225 * will release the interrupt vector(s) for the message signaled interrupt. 10226 **/ 10227 static void 10228 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10229 { 10230 /* Disable the currently initialized interrupt mode */ 10231 if (phba->intr_type == MSIX) { 10232 int index; 10233 10234 /* Free up MSI-X multi-message vectors */ 10235 for (index = 0; index < phba->io_channel_irqs; index++) 10236 free_irq(pci_irq_vector(phba->pcidev, index), 10237 &phba->sli4_hba.hba_eq_hdl[index]); 10238 10239 if (phba->cfg_fof) 10240 free_irq(pci_irq_vector(phba->pcidev, index), 10241 &phba->sli4_hba.hba_eq_hdl[index]); 10242 } else { 10243 free_irq(phba->pcidev->irq, phba); 10244 } 10245 10246 pci_free_irq_vectors(phba->pcidev); 10247 10248 /* Reset interrupt management states */ 10249 phba->intr_type = NONE; 10250 phba->sli.slistat.sli_intr = 0; 10251 } 10252 10253 /** 10254 * lpfc_unset_hba - Unset SLI3 hba device initialization 10255 * @phba: pointer to lpfc hba data structure. 10256 * 10257 * This routine is invoked to unset the HBA device initialization steps to 10258 * a device with SLI-3 interface spec. 10259 **/ 10260 static void 10261 lpfc_unset_hba(struct lpfc_hba *phba) 10262 { 10263 struct lpfc_vport *vport = phba->pport; 10264 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10265 10266 spin_lock_irq(shost->host_lock); 10267 vport->load_flag |= FC_UNLOADING; 10268 spin_unlock_irq(shost->host_lock); 10269 10270 kfree(phba->vpi_bmask); 10271 kfree(phba->vpi_ids); 10272 10273 lpfc_stop_hba_timers(phba); 10274 10275 phba->pport->work_port_events = 0; 10276 10277 lpfc_sli_hba_down(phba); 10278 10279 lpfc_sli_brdrestart(phba); 10280 10281 lpfc_sli_disable_intr(phba); 10282 10283 return; 10284 } 10285 10286 /** 10287 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10288 * @phba: Pointer to HBA context object. 10289 * 10290 * This function is called in the SLI4 code path to wait for completion 10291 * of device's XRIs exchange busy. It will check the XRI exchange busy 10292 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10293 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10294 * I/Os every 30 seconds, log error message, and wait forever. Only when 10295 * all XRI exchange busy complete, the driver unload shall proceed with 10296 * invoking the function reset ioctl mailbox command to the CNA and the 10297 * the rest of the driver unload resource release. 10298 **/ 10299 static void 10300 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10301 { 10302 int wait_time = 0; 10303 int nvme_xri_cmpl = 1; 10304 int nvmet_xri_cmpl = 1; 10305 int fcp_xri_cmpl = 1; 10306 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10307 10308 /* Driver just aborted IOs during the hba_unset process. Pause 10309 * here to give the HBA time to complete the IO and get entries 10310 * into the abts lists. 10311 */ 10312 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5); 10313 10314 /* Wait for NVME pending IO to flush back to transport. */ 10315 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 10316 lpfc_nvme_wait_for_io_drain(phba); 10317 10318 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10319 fcp_xri_cmpl = 10320 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10321 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10322 nvme_xri_cmpl = 10323 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10324 nvmet_xri_cmpl = 10325 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10326 } 10327 10328 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10329 !nvmet_xri_cmpl) { 10330 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10331 if (!nvme_xri_cmpl) 10332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10333 "6100 NVME XRI exchange busy " 10334 "wait time: %d seconds.\n", 10335 wait_time/1000); 10336 if (!fcp_xri_cmpl) 10337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10338 "2877 FCP XRI exchange busy " 10339 "wait time: %d seconds.\n", 10340 wait_time/1000); 10341 if (!els_xri_cmpl) 10342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10343 "2878 ELS XRI exchange busy " 10344 "wait time: %d seconds.\n", 10345 wait_time/1000); 10346 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10347 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10348 } else { 10349 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10350 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10351 } 10352 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10353 nvme_xri_cmpl = list_empty( 10354 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10355 nvmet_xri_cmpl = list_empty( 10356 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10357 } 10358 10359 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10360 fcp_xri_cmpl = list_empty( 10361 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10362 10363 els_xri_cmpl = 10364 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10365 10366 } 10367 } 10368 10369 /** 10370 * lpfc_sli4_hba_unset - Unset the fcoe hba 10371 * @phba: Pointer to HBA context object. 10372 * 10373 * This function is called in the SLI4 code path to reset the HBA's FCoE 10374 * function. The caller is not required to hold any lock. This routine 10375 * issues PCI function reset mailbox command to reset the FCoE function. 10376 * At the end of the function, it calls lpfc_hba_down_post function to 10377 * free any pending commands. 10378 **/ 10379 static void 10380 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10381 { 10382 int wait_cnt = 0; 10383 LPFC_MBOXQ_t *mboxq; 10384 struct pci_dev *pdev = phba->pcidev; 10385 10386 lpfc_stop_hba_timers(phba); 10387 phba->sli4_hba.intr_enable = 0; 10388 10389 /* 10390 * Gracefully wait out the potential current outstanding asynchronous 10391 * mailbox command. 10392 */ 10393 10394 /* First, block any pending async mailbox command from posted */ 10395 spin_lock_irq(&phba->hbalock); 10396 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10397 spin_unlock_irq(&phba->hbalock); 10398 /* Now, trying to wait it out if we can */ 10399 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10400 msleep(10); 10401 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10402 break; 10403 } 10404 /* Forcefully release the outstanding mailbox command if timed out */ 10405 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10406 spin_lock_irq(&phba->hbalock); 10407 mboxq = phba->sli.mbox_active; 10408 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10409 __lpfc_mbox_cmpl_put(phba, mboxq); 10410 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10411 phba->sli.mbox_active = NULL; 10412 spin_unlock_irq(&phba->hbalock); 10413 } 10414 10415 /* Abort all iocbs associated with the hba */ 10416 lpfc_sli_hba_iocb_abort(phba); 10417 10418 /* Wait for completion of device XRI exchange busy */ 10419 lpfc_sli4_xri_exchange_busy_wait(phba); 10420 10421 /* Disable PCI subsystem interrupt */ 10422 lpfc_sli4_disable_intr(phba); 10423 10424 /* Disable SR-IOV if enabled */ 10425 if (phba->cfg_sriov_nr_virtfn) 10426 pci_disable_sriov(pdev); 10427 10428 /* Stop kthread signal shall trigger work_done one more time */ 10429 kthread_stop(phba->worker_thread); 10430 10431 /* Unset the queues shared with the hardware then release all 10432 * allocated resources. 10433 */ 10434 lpfc_sli4_queue_unset(phba); 10435 lpfc_sli4_queue_destroy(phba); 10436 10437 /* Reset SLI4 HBA FCoE function */ 10438 lpfc_pci_function_reset(phba); 10439 10440 /* Stop the SLI4 device port */ 10441 phba->pport->work_port_events = 0; 10442 } 10443 10444 /** 10445 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10446 * @phba: Pointer to HBA context object. 10447 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10448 * 10449 * This function is called in the SLI4 code path to read the port's 10450 * sli4 capabilities. 10451 * 10452 * This function may be be called from any context that can block-wait 10453 * for the completion. The expectation is that this routine is called 10454 * typically from probe_one or from the online routine. 10455 **/ 10456 int 10457 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10458 { 10459 int rc; 10460 struct lpfc_mqe *mqe; 10461 struct lpfc_pc_sli4_params *sli4_params; 10462 uint32_t mbox_tmo; 10463 10464 rc = 0; 10465 mqe = &mboxq->u.mqe; 10466 10467 /* Read the port's SLI4 Parameters port capabilities */ 10468 lpfc_pc_sli4_params(mboxq); 10469 if (!phba->sli4_hba.intr_enable) 10470 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10471 else { 10472 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10473 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10474 } 10475 10476 if (unlikely(rc)) 10477 return 1; 10478 10479 sli4_params = &phba->sli4_hba.pc_sli4_params; 10480 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10481 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10482 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10483 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10484 &mqe->un.sli4_params); 10485 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10486 &mqe->un.sli4_params); 10487 sli4_params->proto_types = mqe->un.sli4_params.word3; 10488 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10489 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10490 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10491 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10492 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10493 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10494 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10495 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10496 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10497 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10498 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10499 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10500 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10501 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10502 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10503 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10504 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10505 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10506 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10507 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10508 10509 /* Make sure that sge_supp_len can be handled by the driver */ 10510 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10511 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10512 10513 return rc; 10514 } 10515 10516 /** 10517 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10518 * @phba: Pointer to HBA context object. 10519 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10520 * 10521 * This function is called in the SLI4 code path to read the port's 10522 * sli4 capabilities. 10523 * 10524 * This function may be be called from any context that can block-wait 10525 * for the completion. The expectation is that this routine is called 10526 * typically from probe_one or from the online routine. 10527 **/ 10528 int 10529 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10530 { 10531 int rc; 10532 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10533 struct lpfc_pc_sli4_params *sli4_params; 10534 uint32_t mbox_tmo; 10535 int length; 10536 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10537 10538 /* 10539 * By default, the driver assumes the SLI4 port requires RPI 10540 * header postings. The SLI4_PARAM response will correct this 10541 * assumption. 10542 */ 10543 phba->sli4_hba.rpi_hdrs_in_use = 1; 10544 10545 /* Read the port's SLI4 Config Parameters */ 10546 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10547 sizeof(struct lpfc_sli4_cfg_mhdr)); 10548 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10549 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10550 length, LPFC_SLI4_MBX_EMBED); 10551 if (!phba->sli4_hba.intr_enable) 10552 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10553 else { 10554 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10555 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10556 } 10557 if (unlikely(rc)) 10558 return rc; 10559 sli4_params = &phba->sli4_hba.pc_sli4_params; 10560 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10561 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10562 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10563 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10564 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10565 mbx_sli4_parameters); 10566 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10567 mbx_sli4_parameters); 10568 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10569 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10570 else 10571 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10572 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10573 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10574 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10575 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10576 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10577 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10578 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10579 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters); 10580 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters); 10581 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10582 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10583 mbx_sli4_parameters); 10584 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10585 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10586 mbx_sli4_parameters); 10587 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10588 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10589 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10590 bf_get(cfg_xib, mbx_sli4_parameters)); 10591 10592 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10593 !phba->nvme_support) { 10594 phba->nvme_support = 0; 10595 phba->nvmet_support = 0; 10596 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF; 10597 phba->cfg_nvme_io_channel = 0; 10598 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10600 "6101 Disabling NVME support: " 10601 "Not supported by firmware: %d %d\n", 10602 bf_get(cfg_nvme, mbx_sli4_parameters), 10603 bf_get(cfg_xib, mbx_sli4_parameters)); 10604 10605 /* If firmware doesn't support NVME, just use SCSI support */ 10606 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10607 return -ENODEV; 10608 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10609 } 10610 10611 /* Only embed PBDE for if_type 6 */ 10612 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 10613 LPFC_SLI_INTF_IF_TYPE_6) { 10614 phba->fcp_embed_pbde = 1; 10615 phba->nvme_embed_pbde = 1; 10616 } 10617 10618 /* PBDE support requires xib be set */ 10619 if (!bf_get(cfg_xib, mbx_sli4_parameters)) { 10620 phba->fcp_embed_pbde = 0; 10621 phba->nvme_embed_pbde = 0; 10622 } 10623 10624 /* 10625 * To support Suppress Response feature we must satisfy 3 conditions. 10626 * lpfc_suppress_rsp module parameter must be set (default). 10627 * In SLI4-Parameters Descriptor: 10628 * Extended Inline Buffers (XIB) must be supported. 10629 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported 10630 * (double negative). 10631 */ 10632 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) && 10633 !(bf_get(cfg_nosr, mbx_sli4_parameters))) 10634 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10635 else 10636 phba->cfg_suppress_rsp = 0; 10637 10638 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10639 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10640 10641 /* Make sure that sge_supp_len can be handled by the driver */ 10642 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10643 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10644 10645 /* 10646 * Check whether the adapter supports an embedded copy of the 10647 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order 10648 * to use this option, 128-byte WQEs must be used. 10649 */ 10650 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10651 phba->fcp_embed_io = 1; 10652 else 10653 phba->fcp_embed_io = 0; 10654 10655 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, 10656 "6422 XIB %d: FCP %d %d NVME %d %d %d %d\n", 10657 bf_get(cfg_xib, mbx_sli4_parameters), 10658 phba->fcp_embed_pbde, phba->fcp_embed_io, 10659 phba->nvme_support, phba->nvme_embed_pbde, 10660 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp); 10661 10662 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) && 10663 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) && 10664 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT)) 10665 phba->enab_exp_wqcq_pages = 1; 10666 else 10667 phba->enab_exp_wqcq_pages = 0; 10668 /* 10669 * Check if the SLI port supports MDS Diagnostics 10670 */ 10671 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10672 phba->mds_diags_support = 1; 10673 else 10674 phba->mds_diags_support = 0; 10675 return 0; 10676 } 10677 10678 /** 10679 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10680 * @pdev: pointer to PCI device 10681 * @pid: pointer to PCI device identifier 10682 * 10683 * This routine is to be called to attach a device with SLI-3 interface spec 10684 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10685 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10686 * information of the device and driver to see if the driver state that it can 10687 * support this kind of device. If the match is successful, the driver core 10688 * invokes this routine. If this routine determines it can claim the HBA, it 10689 * does all the initialization that it needs to do to handle the HBA properly. 10690 * 10691 * Return code 10692 * 0 - driver can claim the device 10693 * negative value - driver can not claim the device 10694 **/ 10695 static int 10696 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10697 { 10698 struct lpfc_hba *phba; 10699 struct lpfc_vport *vport = NULL; 10700 struct Scsi_Host *shost = NULL; 10701 int error; 10702 uint32_t cfg_mode, intr_mode; 10703 10704 /* Allocate memory for HBA structure */ 10705 phba = lpfc_hba_alloc(pdev); 10706 if (!phba) 10707 return -ENOMEM; 10708 10709 /* Perform generic PCI device enabling operation */ 10710 error = lpfc_enable_pci_dev(phba); 10711 if (error) 10712 goto out_free_phba; 10713 10714 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10715 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10716 if (error) 10717 goto out_disable_pci_dev; 10718 10719 /* Set up SLI-3 specific device PCI memory space */ 10720 error = lpfc_sli_pci_mem_setup(phba); 10721 if (error) { 10722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10723 "1402 Failed to set up pci memory space.\n"); 10724 goto out_disable_pci_dev; 10725 } 10726 10727 /* Set up SLI-3 specific device driver resources */ 10728 error = lpfc_sli_driver_resource_setup(phba); 10729 if (error) { 10730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10731 "1404 Failed to set up driver resource.\n"); 10732 goto out_unset_pci_mem_s3; 10733 } 10734 10735 /* Initialize and populate the iocb list per host */ 10736 10737 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10738 if (error) { 10739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10740 "1405 Failed to initialize iocb list.\n"); 10741 goto out_unset_driver_resource_s3; 10742 } 10743 10744 /* Set up common device driver resources */ 10745 error = lpfc_setup_driver_resource_phase2(phba); 10746 if (error) { 10747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10748 "1406 Failed to set up driver resource.\n"); 10749 goto out_free_iocb_list; 10750 } 10751 10752 /* Get the default values for Model Name and Description */ 10753 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10754 10755 /* Create SCSI host to the physical port */ 10756 error = lpfc_create_shost(phba); 10757 if (error) { 10758 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10759 "1407 Failed to create scsi host.\n"); 10760 goto out_unset_driver_resource; 10761 } 10762 10763 /* Configure sysfs attributes */ 10764 vport = phba->pport; 10765 error = lpfc_alloc_sysfs_attr(vport); 10766 if (error) { 10767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10768 "1476 Failed to allocate sysfs attr\n"); 10769 goto out_destroy_shost; 10770 } 10771 10772 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10773 /* Now, trying to enable interrupt and bring up the device */ 10774 cfg_mode = phba->cfg_use_msi; 10775 while (true) { 10776 /* Put device to a known state before enabling interrupt */ 10777 lpfc_stop_port(phba); 10778 /* Configure and enable interrupt */ 10779 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10780 if (intr_mode == LPFC_INTR_ERROR) { 10781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10782 "0431 Failed to enable interrupt.\n"); 10783 error = -ENODEV; 10784 goto out_free_sysfs_attr; 10785 } 10786 /* SLI-3 HBA setup */ 10787 if (lpfc_sli_hba_setup(phba)) { 10788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10789 "1477 Failed to set up hba\n"); 10790 error = -ENODEV; 10791 goto out_remove_device; 10792 } 10793 10794 /* Wait 50ms for the interrupts of previous mailbox commands */ 10795 msleep(50); 10796 /* Check active interrupts on message signaled interrupts */ 10797 if (intr_mode == 0 || 10798 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10799 /* Log the current active interrupt mode */ 10800 phba->intr_mode = intr_mode; 10801 lpfc_log_intr_mode(phba, intr_mode); 10802 break; 10803 } else { 10804 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10805 "0447 Configure interrupt mode (%d) " 10806 "failed active interrupt test.\n", 10807 intr_mode); 10808 /* Disable the current interrupt mode */ 10809 lpfc_sli_disable_intr(phba); 10810 /* Try next level of interrupt mode */ 10811 cfg_mode = --intr_mode; 10812 } 10813 } 10814 10815 /* Perform post initialization setup */ 10816 lpfc_post_init_setup(phba); 10817 10818 /* Check if there are static vports to be created. */ 10819 lpfc_create_static_vport(phba); 10820 10821 return 0; 10822 10823 out_remove_device: 10824 lpfc_unset_hba(phba); 10825 out_free_sysfs_attr: 10826 lpfc_free_sysfs_attr(vport); 10827 out_destroy_shost: 10828 lpfc_destroy_shost(phba); 10829 out_unset_driver_resource: 10830 lpfc_unset_driver_resource_phase2(phba); 10831 out_free_iocb_list: 10832 lpfc_free_iocb_list(phba); 10833 out_unset_driver_resource_s3: 10834 lpfc_sli_driver_resource_unset(phba); 10835 out_unset_pci_mem_s3: 10836 lpfc_sli_pci_mem_unset(phba); 10837 out_disable_pci_dev: 10838 lpfc_disable_pci_dev(phba); 10839 if (shost) 10840 scsi_host_put(shost); 10841 out_free_phba: 10842 lpfc_hba_free(phba); 10843 return error; 10844 } 10845 10846 /** 10847 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10848 * @pdev: pointer to PCI device 10849 * 10850 * This routine is to be called to disattach a device with SLI-3 interface 10851 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10852 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10853 * device to be removed from the PCI subsystem properly. 10854 **/ 10855 static void 10856 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10857 { 10858 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10859 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10860 struct lpfc_vport **vports; 10861 struct lpfc_hba *phba = vport->phba; 10862 int i; 10863 10864 spin_lock_irq(&phba->hbalock); 10865 vport->load_flag |= FC_UNLOADING; 10866 spin_unlock_irq(&phba->hbalock); 10867 10868 lpfc_free_sysfs_attr(vport); 10869 10870 /* Release all the vports against this physical port */ 10871 vports = lpfc_create_vport_work_array(phba); 10872 if (vports != NULL) 10873 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10874 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10875 continue; 10876 fc_vport_terminate(vports[i]->fc_vport); 10877 } 10878 lpfc_destroy_vport_work_array(phba, vports); 10879 10880 /* Remove FC host and then SCSI host with the physical port */ 10881 fc_remove_host(shost); 10882 scsi_remove_host(shost); 10883 10884 lpfc_cleanup(vport); 10885 10886 /* 10887 * Bring down the SLI Layer. This step disable all interrupts, 10888 * clears the rings, discards all mailbox commands, and resets 10889 * the HBA. 10890 */ 10891 10892 /* HBA interrupt will be disabled after this call */ 10893 lpfc_sli_hba_down(phba); 10894 /* Stop kthread signal shall trigger work_done one more time */ 10895 kthread_stop(phba->worker_thread); 10896 /* Final cleanup of txcmplq and reset the HBA */ 10897 lpfc_sli_brdrestart(phba); 10898 10899 kfree(phba->vpi_bmask); 10900 kfree(phba->vpi_ids); 10901 10902 lpfc_stop_hba_timers(phba); 10903 spin_lock_irq(&phba->hbalock); 10904 list_del_init(&vport->listentry); 10905 spin_unlock_irq(&phba->hbalock); 10906 10907 lpfc_debugfs_terminate(vport); 10908 10909 /* Disable SR-IOV if enabled */ 10910 if (phba->cfg_sriov_nr_virtfn) 10911 pci_disable_sriov(pdev); 10912 10913 /* Disable interrupt */ 10914 lpfc_sli_disable_intr(phba); 10915 10916 scsi_host_put(shost); 10917 10918 /* 10919 * Call scsi_free before mem_free since scsi bufs are released to their 10920 * corresponding pools here. 10921 */ 10922 lpfc_scsi_free(phba); 10923 lpfc_mem_free_all(phba); 10924 10925 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10926 phba->hbqslimp.virt, phba->hbqslimp.phys); 10927 10928 /* Free resources associated with SLI2 interface */ 10929 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10930 phba->slim2p.virt, phba->slim2p.phys); 10931 10932 /* unmap adapter SLIM and Control Registers */ 10933 iounmap(phba->ctrl_regs_memmap_p); 10934 iounmap(phba->slim_memmap_p); 10935 10936 lpfc_hba_free(phba); 10937 10938 pci_release_mem_regions(pdev); 10939 pci_disable_device(pdev); 10940 } 10941 10942 /** 10943 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10944 * @pdev: pointer to PCI device 10945 * @msg: power management message 10946 * 10947 * This routine is to be called from the kernel's PCI subsystem to support 10948 * system Power Management (PM) to device with SLI-3 interface spec. When 10949 * PM invokes this method, it quiesces the device by stopping the driver's 10950 * worker thread for the device, turning off device's interrupt and DMA, 10951 * and bring the device offline. Note that as the driver implements the 10952 * minimum PM requirements to a power-aware driver's PM support for the 10953 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10954 * to the suspend() method call will be treated as SUSPEND and the driver will 10955 * fully reinitialize its device during resume() method call, the driver will 10956 * set device to PCI_D3hot state in PCI config space instead of setting it 10957 * according to the @msg provided by the PM. 10958 * 10959 * Return code 10960 * 0 - driver suspended the device 10961 * Error otherwise 10962 **/ 10963 static int 10964 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10965 { 10966 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10967 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10968 10969 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10970 "0473 PCI device Power Management suspend.\n"); 10971 10972 /* Bring down the device */ 10973 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10974 lpfc_offline(phba); 10975 kthread_stop(phba->worker_thread); 10976 10977 /* Disable interrupt from device */ 10978 lpfc_sli_disable_intr(phba); 10979 10980 /* Save device state to PCI config space */ 10981 pci_save_state(pdev); 10982 pci_set_power_state(pdev, PCI_D3hot); 10983 10984 return 0; 10985 } 10986 10987 /** 10988 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10989 * @pdev: pointer to PCI device 10990 * 10991 * This routine is to be called from the kernel's PCI subsystem to support 10992 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10993 * invokes this method, it restores the device's PCI config space state and 10994 * fully reinitializes the device and brings it online. Note that as the 10995 * driver implements the minimum PM requirements to a power-aware driver's 10996 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10997 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10998 * driver will fully reinitialize its device during resume() method call, 10999 * the device will be set to PCI_D0 directly in PCI config space before 11000 * restoring the state. 11001 * 11002 * Return code 11003 * 0 - driver suspended the device 11004 * Error otherwise 11005 **/ 11006 static int 11007 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 11008 { 11009 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11010 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11011 uint32_t intr_mode; 11012 int error; 11013 11014 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11015 "0452 PCI device Power Management resume.\n"); 11016 11017 /* Restore device state from PCI config space */ 11018 pci_set_power_state(pdev, PCI_D0); 11019 pci_restore_state(pdev); 11020 11021 /* 11022 * As the new kernel behavior of pci_restore_state() API call clears 11023 * device saved_state flag, need to save the restored state again. 11024 */ 11025 pci_save_state(pdev); 11026 11027 if (pdev->is_busmaster) 11028 pci_set_master(pdev); 11029 11030 /* Startup the kernel thread for this host adapter. */ 11031 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11032 "lpfc_worker_%d", phba->brd_no); 11033 if (IS_ERR(phba->worker_thread)) { 11034 error = PTR_ERR(phba->worker_thread); 11035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11036 "0434 PM resume failed to start worker " 11037 "thread: error=x%x.\n", error); 11038 return error; 11039 } 11040 11041 /* Configure and enable interrupt */ 11042 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 11043 if (intr_mode == LPFC_INTR_ERROR) { 11044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11045 "0430 PM resume Failed to enable interrupt\n"); 11046 return -EIO; 11047 } else 11048 phba->intr_mode = intr_mode; 11049 11050 /* Restart HBA and bring it online */ 11051 lpfc_sli_brdrestart(phba); 11052 lpfc_online(phba); 11053 11054 /* Log the current active interrupt mode */ 11055 lpfc_log_intr_mode(phba, phba->intr_mode); 11056 11057 return 0; 11058 } 11059 11060 /** 11061 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 11062 * @phba: pointer to lpfc hba data structure. 11063 * 11064 * This routine is called to prepare the SLI3 device for PCI slot recover. It 11065 * aborts all the outstanding SCSI I/Os to the pci device. 11066 **/ 11067 static void 11068 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 11069 { 11070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11071 "2723 PCI channel I/O abort preparing for recovery\n"); 11072 11073 /* 11074 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11075 * and let the SCSI mid-layer to retry them to recover. 11076 */ 11077 lpfc_sli_abort_fcp_rings(phba); 11078 } 11079 11080 /** 11081 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 11082 * @phba: pointer to lpfc hba data structure. 11083 * 11084 * This routine is called to prepare the SLI3 device for PCI slot reset. It 11085 * disables the device interrupt and pci device, and aborts the internal FCP 11086 * pending I/Os. 11087 **/ 11088 static void 11089 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 11090 { 11091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11092 "2710 PCI channel disable preparing for reset\n"); 11093 11094 /* Block any management I/Os to the device */ 11095 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 11096 11097 /* Block all SCSI devices' I/Os on the host */ 11098 lpfc_scsi_dev_block(phba); 11099 11100 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11101 lpfc_sli_flush_fcp_rings(phba); 11102 11103 /* stop all timers */ 11104 lpfc_stop_hba_timers(phba); 11105 11106 /* Disable interrupt and pci device */ 11107 lpfc_sli_disable_intr(phba); 11108 pci_disable_device(phba->pcidev); 11109 } 11110 11111 /** 11112 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 11113 * @phba: pointer to lpfc hba data structure. 11114 * 11115 * This routine is called to prepare the SLI3 device for PCI slot permanently 11116 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11117 * pending I/Os. 11118 **/ 11119 static void 11120 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11121 { 11122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11123 "2711 PCI channel permanent disable for failure\n"); 11124 /* Block all SCSI devices' I/Os on the host */ 11125 lpfc_scsi_dev_block(phba); 11126 11127 /* stop all timers */ 11128 lpfc_stop_hba_timers(phba); 11129 11130 /* Clean up all driver's outstanding SCSI I/Os */ 11131 lpfc_sli_flush_fcp_rings(phba); 11132 } 11133 11134 /** 11135 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 11136 * @pdev: pointer to PCI device. 11137 * @state: the current PCI connection state. 11138 * 11139 * This routine is called from the PCI subsystem for I/O error handling to 11140 * device with SLI-3 interface spec. This function is called by the PCI 11141 * subsystem after a PCI bus error affecting this device has been detected. 11142 * When this function is invoked, it will need to stop all the I/Os and 11143 * interrupt(s) to the device. Once that is done, it will return 11144 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 11145 * as desired. 11146 * 11147 * Return codes 11148 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 11149 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11150 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11151 **/ 11152 static pci_ers_result_t 11153 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 11154 { 11155 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11156 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11157 11158 switch (state) { 11159 case pci_channel_io_normal: 11160 /* Non-fatal error, prepare for recovery */ 11161 lpfc_sli_prep_dev_for_recover(phba); 11162 return PCI_ERS_RESULT_CAN_RECOVER; 11163 case pci_channel_io_frozen: 11164 /* Fatal error, prepare for slot reset */ 11165 lpfc_sli_prep_dev_for_reset(phba); 11166 return PCI_ERS_RESULT_NEED_RESET; 11167 case pci_channel_io_perm_failure: 11168 /* Permanent failure, prepare for device down */ 11169 lpfc_sli_prep_dev_for_perm_failure(phba); 11170 return PCI_ERS_RESULT_DISCONNECT; 11171 default: 11172 /* Unknown state, prepare and request slot reset */ 11173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11174 "0472 Unknown PCI error state: x%x\n", state); 11175 lpfc_sli_prep_dev_for_reset(phba); 11176 return PCI_ERS_RESULT_NEED_RESET; 11177 } 11178 } 11179 11180 /** 11181 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 11182 * @pdev: pointer to PCI device. 11183 * 11184 * This routine is called from the PCI subsystem for error handling to 11185 * device with SLI-3 interface spec. This is called after PCI bus has been 11186 * reset to restart the PCI card from scratch, as if from a cold-boot. 11187 * During the PCI subsystem error recovery, after driver returns 11188 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11189 * recovery and then call this routine before calling the .resume method 11190 * to recover the device. This function will initialize the HBA device, 11191 * enable the interrupt, but it will just put the HBA to offline state 11192 * without passing any I/O traffic. 11193 * 11194 * Return codes 11195 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11196 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11197 */ 11198 static pci_ers_result_t 11199 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 11200 { 11201 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11202 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11203 struct lpfc_sli *psli = &phba->sli; 11204 uint32_t intr_mode; 11205 11206 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11207 if (pci_enable_device_mem(pdev)) { 11208 printk(KERN_ERR "lpfc: Cannot re-enable " 11209 "PCI device after reset.\n"); 11210 return PCI_ERS_RESULT_DISCONNECT; 11211 } 11212 11213 pci_restore_state(pdev); 11214 11215 /* 11216 * As the new kernel behavior of pci_restore_state() API call clears 11217 * device saved_state flag, need to save the restored state again. 11218 */ 11219 pci_save_state(pdev); 11220 11221 if (pdev->is_busmaster) 11222 pci_set_master(pdev); 11223 11224 spin_lock_irq(&phba->hbalock); 11225 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11226 spin_unlock_irq(&phba->hbalock); 11227 11228 /* Configure and enable interrupt */ 11229 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 11230 if (intr_mode == LPFC_INTR_ERROR) { 11231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11232 "0427 Cannot re-enable interrupt after " 11233 "slot reset.\n"); 11234 return PCI_ERS_RESULT_DISCONNECT; 11235 } else 11236 phba->intr_mode = intr_mode; 11237 11238 /* Take device offline, it will perform cleanup */ 11239 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11240 lpfc_offline(phba); 11241 lpfc_sli_brdrestart(phba); 11242 11243 /* Log the current active interrupt mode */ 11244 lpfc_log_intr_mode(phba, phba->intr_mode); 11245 11246 return PCI_ERS_RESULT_RECOVERED; 11247 } 11248 11249 /** 11250 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 11251 * @pdev: pointer to PCI device 11252 * 11253 * This routine is called from the PCI subsystem for error handling to device 11254 * with SLI-3 interface spec. It is called when kernel error recovery tells 11255 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11256 * error recovery. After this call, traffic can start to flow from this device 11257 * again. 11258 */ 11259 static void 11260 lpfc_io_resume_s3(struct pci_dev *pdev) 11261 { 11262 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11263 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11264 11265 /* Bring device online, it will be no-op for non-fatal error resume */ 11266 lpfc_online(phba); 11267 11268 /* Clean up Advanced Error Reporting (AER) if needed */ 11269 if (phba->hba_flag & HBA_AER_ENABLED) 11270 pci_cleanup_aer_uncorrect_error_status(pdev); 11271 } 11272 11273 /** 11274 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 11275 * @phba: pointer to lpfc hba data structure. 11276 * 11277 * returns the number of ELS/CT IOCBs to reserve 11278 **/ 11279 int 11280 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11281 { 11282 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11283 11284 if (phba->sli_rev == LPFC_SLI_REV4) { 11285 if (max_xri <= 100) 11286 return 10; 11287 else if (max_xri <= 256) 11288 return 25; 11289 else if (max_xri <= 512) 11290 return 50; 11291 else if (max_xri <= 1024) 11292 return 100; 11293 else if (max_xri <= 1536) 11294 return 150; 11295 else if (max_xri <= 2048) 11296 return 200; 11297 else 11298 return 250; 11299 } else 11300 return 0; 11301 } 11302 11303 /** 11304 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11305 * @phba: pointer to lpfc hba data structure. 11306 * 11307 * returns the number of ELS/CT + NVMET IOCBs to reserve 11308 **/ 11309 int 11310 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11311 { 11312 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11313 11314 if (phba->nvmet_support) 11315 max_xri += LPFC_NVMET_BUF_POST; 11316 return max_xri; 11317 } 11318 11319 11320 static void 11321 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset, 11322 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize, 11323 const struct firmware *fw) 11324 { 11325 if (offset == ADD_STATUS_FW_NOT_SUPPORTED) 11326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11327 "3030 This firmware version is not supported on " 11328 "this HBA model. Device:%x Magic:%x Type:%x " 11329 "ID:%x Size %d %zd\n", 11330 phba->pcidev->device, magic_number, ftype, fid, 11331 fsize, fw->size); 11332 else 11333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11334 "3022 FW Download failed. Device:%x Magic:%x Type:%x " 11335 "ID:%x Size %d %zd\n", 11336 phba->pcidev->device, magic_number, ftype, fid, 11337 fsize, fw->size); 11338 } 11339 11340 11341 /** 11342 * lpfc_write_firmware - attempt to write a firmware image to the port 11343 * @fw: pointer to firmware image returned from request_firmware. 11344 * @phba: pointer to lpfc hba data structure. 11345 * 11346 **/ 11347 static void 11348 lpfc_write_firmware(const struct firmware *fw, void *context) 11349 { 11350 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11351 char fwrev[FW_REV_STR_SIZE]; 11352 struct lpfc_grp_hdr *image; 11353 struct list_head dma_buffer_list; 11354 int i, rc = 0; 11355 struct lpfc_dmabuf *dmabuf, *next; 11356 uint32_t offset = 0, temp_offset = 0; 11357 uint32_t magic_number, ftype, fid, fsize; 11358 11359 /* It can be null in no-wait mode, sanity check */ 11360 if (!fw) { 11361 rc = -ENXIO; 11362 goto out; 11363 } 11364 image = (struct lpfc_grp_hdr *)fw->data; 11365 11366 magic_number = be32_to_cpu(image->magic_number); 11367 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11368 fid = bf_get_be32(lpfc_grp_hdr_id, image); 11369 fsize = be32_to_cpu(image->size); 11370 11371 INIT_LIST_HEAD(&dma_buffer_list); 11372 lpfc_decode_firmware_rev(phba, fwrev, 1); 11373 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11375 "3023 Updating Firmware, Current Version:%s " 11376 "New Version:%s\n", 11377 fwrev, image->revision); 11378 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11379 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11380 GFP_KERNEL); 11381 if (!dmabuf) { 11382 rc = -ENOMEM; 11383 goto release_out; 11384 } 11385 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11386 SLI4_PAGE_SIZE, 11387 &dmabuf->phys, 11388 GFP_KERNEL); 11389 if (!dmabuf->virt) { 11390 kfree(dmabuf); 11391 rc = -ENOMEM; 11392 goto release_out; 11393 } 11394 list_add_tail(&dmabuf->list, &dma_buffer_list); 11395 } 11396 while (offset < fw->size) { 11397 temp_offset = offset; 11398 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11399 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11400 memcpy(dmabuf->virt, 11401 fw->data + temp_offset, 11402 fw->size - temp_offset); 11403 temp_offset = fw->size; 11404 break; 11405 } 11406 memcpy(dmabuf->virt, fw->data + temp_offset, 11407 SLI4_PAGE_SIZE); 11408 temp_offset += SLI4_PAGE_SIZE; 11409 } 11410 rc = lpfc_wr_object(phba, &dma_buffer_list, 11411 (fw->size - offset), &offset); 11412 if (rc) { 11413 lpfc_log_write_firmware_error(phba, offset, 11414 magic_number, ftype, fid, fsize, fw); 11415 goto release_out; 11416 } 11417 } 11418 rc = offset; 11419 } else 11420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11421 "3029 Skipped Firmware update, Current " 11422 "Version:%s New Version:%s\n", 11423 fwrev, image->revision); 11424 11425 release_out: 11426 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11427 list_del(&dmabuf->list); 11428 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11429 dmabuf->virt, dmabuf->phys); 11430 kfree(dmabuf); 11431 } 11432 release_firmware(fw); 11433 out: 11434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11435 "3024 Firmware update done: %d.\n", rc); 11436 return; 11437 } 11438 11439 /** 11440 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11441 * @phba: pointer to lpfc hba data structure. 11442 * 11443 * This routine is called to perform Linux generic firmware upgrade on device 11444 * that supports such feature. 11445 **/ 11446 int 11447 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11448 { 11449 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11450 int ret; 11451 const struct firmware *fw; 11452 11453 /* Only supported on SLI4 interface type 2 for now */ 11454 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 11455 LPFC_SLI_INTF_IF_TYPE_2) 11456 return -EPERM; 11457 11458 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11459 11460 if (fw_upgrade == INT_FW_UPGRADE) { 11461 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11462 file_name, &phba->pcidev->dev, 11463 GFP_KERNEL, (void *)phba, 11464 lpfc_write_firmware); 11465 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11466 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11467 if (!ret) 11468 lpfc_write_firmware(fw, (void *)phba); 11469 } else { 11470 ret = -EINVAL; 11471 } 11472 11473 return ret; 11474 } 11475 11476 /** 11477 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11478 * @pdev: pointer to PCI device 11479 * @pid: pointer to PCI device identifier 11480 * 11481 * This routine is called from the kernel's PCI subsystem to device with 11482 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11483 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11484 * information of the device and driver to see if the driver state that it 11485 * can support this kind of device. If the match is successful, the driver 11486 * core invokes this routine. If this routine determines it can claim the HBA, 11487 * it does all the initialization that it needs to do to handle the HBA 11488 * properly. 11489 * 11490 * Return code 11491 * 0 - driver can claim the device 11492 * negative value - driver can not claim the device 11493 **/ 11494 static int 11495 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11496 { 11497 struct lpfc_hba *phba; 11498 struct lpfc_vport *vport = NULL; 11499 struct Scsi_Host *shost = NULL; 11500 int error; 11501 uint32_t cfg_mode, intr_mode; 11502 11503 /* Allocate memory for HBA structure */ 11504 phba = lpfc_hba_alloc(pdev); 11505 if (!phba) 11506 return -ENOMEM; 11507 11508 /* Perform generic PCI device enabling operation */ 11509 error = lpfc_enable_pci_dev(phba); 11510 if (error) 11511 goto out_free_phba; 11512 11513 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11514 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11515 if (error) 11516 goto out_disable_pci_dev; 11517 11518 /* Set up SLI-4 specific device PCI memory space */ 11519 error = lpfc_sli4_pci_mem_setup(phba); 11520 if (error) { 11521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11522 "1410 Failed to set up pci memory space.\n"); 11523 goto out_disable_pci_dev; 11524 } 11525 11526 /* Set up SLI-4 Specific device driver resources */ 11527 error = lpfc_sli4_driver_resource_setup(phba); 11528 if (error) { 11529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11530 "1412 Failed to set up driver resource.\n"); 11531 goto out_unset_pci_mem_s4; 11532 } 11533 11534 INIT_LIST_HEAD(&phba->active_rrq_list); 11535 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11536 11537 /* Set up common device driver resources */ 11538 error = lpfc_setup_driver_resource_phase2(phba); 11539 if (error) { 11540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11541 "1414 Failed to set up driver resource.\n"); 11542 goto out_unset_driver_resource_s4; 11543 } 11544 11545 /* Get the default values for Model Name and Description */ 11546 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11547 11548 /* Create SCSI host to the physical port */ 11549 error = lpfc_create_shost(phba); 11550 if (error) { 11551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11552 "1415 Failed to create scsi host.\n"); 11553 goto out_unset_driver_resource; 11554 } 11555 11556 /* Configure sysfs attributes */ 11557 vport = phba->pport; 11558 error = lpfc_alloc_sysfs_attr(vport); 11559 if (error) { 11560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11561 "1416 Failed to allocate sysfs attr\n"); 11562 goto out_destroy_shost; 11563 } 11564 11565 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11566 /* Now, trying to enable interrupt and bring up the device */ 11567 cfg_mode = phba->cfg_use_msi; 11568 11569 /* Put device to a known state before enabling interrupt */ 11570 lpfc_stop_port(phba); 11571 11572 /* Configure and enable interrupt */ 11573 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11574 if (intr_mode == LPFC_INTR_ERROR) { 11575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11576 "0426 Failed to enable interrupt.\n"); 11577 error = -ENODEV; 11578 goto out_free_sysfs_attr; 11579 } 11580 /* Default to single EQ for non-MSI-X */ 11581 if (phba->intr_type != MSIX) { 11582 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11583 phba->cfg_fcp_io_channel = 1; 11584 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11585 phba->cfg_nvme_io_channel = 1; 11586 if (phba->nvmet_support) 11587 phba->cfg_nvmet_mrq = 1; 11588 } 11589 phba->io_channel_irqs = 1; 11590 } 11591 11592 /* Set up SLI-4 HBA */ 11593 if (lpfc_sli4_hba_setup(phba)) { 11594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11595 "1421 Failed to set up hba\n"); 11596 error = -ENODEV; 11597 goto out_disable_intr; 11598 } 11599 11600 /* Log the current active interrupt mode */ 11601 phba->intr_mode = intr_mode; 11602 lpfc_log_intr_mode(phba, intr_mode); 11603 11604 /* Perform post initialization setup */ 11605 lpfc_post_init_setup(phba); 11606 11607 /* NVME support in FW earlier in the driver load corrects the 11608 * FC4 type making a check for nvme_support unnecessary. 11609 */ 11610 if ((phba->nvmet_support == 0) && 11611 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11612 /* Create NVME binding with nvme_fc_transport. This 11613 * ensures the vport is initialized. If the localport 11614 * create fails, it should not unload the driver to 11615 * support field issues. 11616 */ 11617 error = lpfc_nvme_create_localport(vport); 11618 if (error) { 11619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11620 "6004 NVME registration failed, " 11621 "error x%x\n", 11622 error); 11623 } 11624 } 11625 11626 /* check for firmware upgrade or downgrade */ 11627 if (phba->cfg_request_firmware_upgrade) 11628 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11629 11630 /* Check if there are static vports to be created. */ 11631 lpfc_create_static_vport(phba); 11632 return 0; 11633 11634 out_disable_intr: 11635 lpfc_sli4_disable_intr(phba); 11636 out_free_sysfs_attr: 11637 lpfc_free_sysfs_attr(vport); 11638 out_destroy_shost: 11639 lpfc_destroy_shost(phba); 11640 out_unset_driver_resource: 11641 lpfc_unset_driver_resource_phase2(phba); 11642 out_unset_driver_resource_s4: 11643 lpfc_sli4_driver_resource_unset(phba); 11644 out_unset_pci_mem_s4: 11645 lpfc_sli4_pci_mem_unset(phba); 11646 out_disable_pci_dev: 11647 lpfc_disable_pci_dev(phba); 11648 if (shost) 11649 scsi_host_put(shost); 11650 out_free_phba: 11651 lpfc_hba_free(phba); 11652 return error; 11653 } 11654 11655 /** 11656 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11657 * @pdev: pointer to PCI device 11658 * 11659 * This routine is called from the kernel's PCI subsystem to device with 11660 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11661 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11662 * device to be removed from the PCI subsystem properly. 11663 **/ 11664 static void 11665 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11666 { 11667 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11668 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11669 struct lpfc_vport **vports; 11670 struct lpfc_hba *phba = vport->phba; 11671 int i; 11672 11673 /* Mark the device unloading flag */ 11674 spin_lock_irq(&phba->hbalock); 11675 vport->load_flag |= FC_UNLOADING; 11676 spin_unlock_irq(&phba->hbalock); 11677 11678 /* Free the HBA sysfs attributes */ 11679 lpfc_free_sysfs_attr(vport); 11680 11681 /* Release all the vports against this physical port */ 11682 vports = lpfc_create_vport_work_array(phba); 11683 if (vports != NULL) 11684 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11685 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11686 continue; 11687 fc_vport_terminate(vports[i]->fc_vport); 11688 } 11689 lpfc_destroy_vport_work_array(phba, vports); 11690 11691 /* Remove FC host and then SCSI host with the physical port */ 11692 fc_remove_host(shost); 11693 scsi_remove_host(shost); 11694 11695 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11696 * localports are destroyed after to cleanup all transport memory. 11697 */ 11698 lpfc_cleanup(vport); 11699 lpfc_nvmet_destroy_targetport(phba); 11700 lpfc_nvme_destroy_localport(vport); 11701 11702 /* 11703 * Bring down the SLI Layer. This step disables all interrupts, 11704 * clears the rings, discards all mailbox commands, and resets 11705 * the HBA FCoE function. 11706 */ 11707 lpfc_debugfs_terminate(vport); 11708 lpfc_sli4_hba_unset(phba); 11709 11710 lpfc_stop_hba_timers(phba); 11711 spin_lock_irq(&phba->hbalock); 11712 list_del_init(&vport->listentry); 11713 spin_unlock_irq(&phba->hbalock); 11714 11715 /* Perform scsi free before driver resource_unset since scsi 11716 * buffers are released to their corresponding pools here. 11717 */ 11718 lpfc_scsi_free(phba); 11719 lpfc_nvme_free(phba); 11720 lpfc_free_iocb_list(phba); 11721 11722 lpfc_sli4_driver_resource_unset(phba); 11723 11724 /* Unmap adapter Control and Doorbell registers */ 11725 lpfc_sli4_pci_mem_unset(phba); 11726 11727 /* Release PCI resources and disable device's PCI function */ 11728 scsi_host_put(shost); 11729 lpfc_disable_pci_dev(phba); 11730 11731 /* Finally, free the driver's device data structure */ 11732 lpfc_hba_free(phba); 11733 11734 return; 11735 } 11736 11737 /** 11738 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11739 * @pdev: pointer to PCI device 11740 * @msg: power management message 11741 * 11742 * This routine is called from the kernel's PCI subsystem to support system 11743 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11744 * this method, it quiesces the device by stopping the driver's worker 11745 * thread for the device, turning off device's interrupt and DMA, and bring 11746 * the device offline. Note that as the driver implements the minimum PM 11747 * requirements to a power-aware driver's PM support for suspend/resume -- all 11748 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11749 * method call will be treated as SUSPEND and the driver will fully 11750 * reinitialize its device during resume() method call, the driver will set 11751 * device to PCI_D3hot state in PCI config space instead of setting it 11752 * according to the @msg provided by the PM. 11753 * 11754 * Return code 11755 * 0 - driver suspended the device 11756 * Error otherwise 11757 **/ 11758 static int 11759 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11760 { 11761 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11762 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11763 11764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11765 "2843 PCI device Power Management suspend.\n"); 11766 11767 /* Bring down the device */ 11768 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11769 lpfc_offline(phba); 11770 kthread_stop(phba->worker_thread); 11771 11772 /* Disable interrupt from device */ 11773 lpfc_sli4_disable_intr(phba); 11774 lpfc_sli4_queue_destroy(phba); 11775 11776 /* Save device state to PCI config space */ 11777 pci_save_state(pdev); 11778 pci_set_power_state(pdev, PCI_D3hot); 11779 11780 return 0; 11781 } 11782 11783 /** 11784 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11785 * @pdev: pointer to PCI device 11786 * 11787 * This routine is called from the kernel's PCI subsystem to support system 11788 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11789 * this method, it restores the device's PCI config space state and fully 11790 * reinitializes the device and brings it online. Note that as the driver 11791 * implements the minimum PM requirements to a power-aware driver's PM for 11792 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11793 * to the suspend() method call will be treated as SUSPEND and the driver 11794 * will fully reinitialize its device during resume() method call, the device 11795 * will be set to PCI_D0 directly in PCI config space before restoring the 11796 * state. 11797 * 11798 * Return code 11799 * 0 - driver suspended the device 11800 * Error otherwise 11801 **/ 11802 static int 11803 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11804 { 11805 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11806 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11807 uint32_t intr_mode; 11808 int error; 11809 11810 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11811 "0292 PCI device Power Management resume.\n"); 11812 11813 /* Restore device state from PCI config space */ 11814 pci_set_power_state(pdev, PCI_D0); 11815 pci_restore_state(pdev); 11816 11817 /* 11818 * As the new kernel behavior of pci_restore_state() API call clears 11819 * device saved_state flag, need to save the restored state again. 11820 */ 11821 pci_save_state(pdev); 11822 11823 if (pdev->is_busmaster) 11824 pci_set_master(pdev); 11825 11826 /* Startup the kernel thread for this host adapter. */ 11827 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11828 "lpfc_worker_%d", phba->brd_no); 11829 if (IS_ERR(phba->worker_thread)) { 11830 error = PTR_ERR(phba->worker_thread); 11831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11832 "0293 PM resume failed to start worker " 11833 "thread: error=x%x.\n", error); 11834 return error; 11835 } 11836 11837 /* Configure and enable interrupt */ 11838 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11839 if (intr_mode == LPFC_INTR_ERROR) { 11840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11841 "0294 PM resume Failed to enable interrupt\n"); 11842 return -EIO; 11843 } else 11844 phba->intr_mode = intr_mode; 11845 11846 /* Restart HBA and bring it online */ 11847 lpfc_sli_brdrestart(phba); 11848 lpfc_online(phba); 11849 11850 /* Log the current active interrupt mode */ 11851 lpfc_log_intr_mode(phba, phba->intr_mode); 11852 11853 return 0; 11854 } 11855 11856 /** 11857 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11858 * @phba: pointer to lpfc hba data structure. 11859 * 11860 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11861 * aborts all the outstanding SCSI I/Os to the pci device. 11862 **/ 11863 static void 11864 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11865 { 11866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11867 "2828 PCI channel I/O abort preparing for recovery\n"); 11868 /* 11869 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11870 * and let the SCSI mid-layer to retry them to recover. 11871 */ 11872 lpfc_sli_abort_fcp_rings(phba); 11873 } 11874 11875 /** 11876 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11877 * @phba: pointer to lpfc hba data structure. 11878 * 11879 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11880 * disables the device interrupt and pci device, and aborts the internal FCP 11881 * pending I/Os. 11882 **/ 11883 static void 11884 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11885 { 11886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11887 "2826 PCI channel disable preparing for reset\n"); 11888 11889 /* Block any management I/Os to the device */ 11890 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11891 11892 /* Block all SCSI devices' I/Os on the host */ 11893 lpfc_scsi_dev_block(phba); 11894 11895 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11896 lpfc_sli_flush_fcp_rings(phba); 11897 11898 /* Flush the outstanding NVME IOs if fc4 type enabled. */ 11899 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 11900 lpfc_sli_flush_nvme_rings(phba); 11901 11902 /* stop all timers */ 11903 lpfc_stop_hba_timers(phba); 11904 11905 /* Disable interrupt and pci device */ 11906 lpfc_sli4_disable_intr(phba); 11907 lpfc_sli4_queue_destroy(phba); 11908 pci_disable_device(phba->pcidev); 11909 } 11910 11911 /** 11912 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11913 * @phba: pointer to lpfc hba data structure. 11914 * 11915 * This routine is called to prepare the SLI4 device for PCI slot permanently 11916 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11917 * pending I/Os. 11918 **/ 11919 static void 11920 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11921 { 11922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11923 "2827 PCI channel permanent disable for failure\n"); 11924 11925 /* Block all SCSI devices' I/Os on the host */ 11926 lpfc_scsi_dev_block(phba); 11927 11928 /* stop all timers */ 11929 lpfc_stop_hba_timers(phba); 11930 11931 /* Clean up all driver's outstanding SCSI I/Os */ 11932 lpfc_sli_flush_fcp_rings(phba); 11933 11934 /* Flush the outstanding NVME IOs if fc4 type enabled. */ 11935 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 11936 lpfc_sli_flush_nvme_rings(phba); 11937 } 11938 11939 /** 11940 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11941 * @pdev: pointer to PCI device. 11942 * @state: the current PCI connection state. 11943 * 11944 * This routine is called from the PCI subsystem for error handling to device 11945 * with SLI-4 interface spec. This function is called by the PCI subsystem 11946 * after a PCI bus error affecting this device has been detected. When this 11947 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11948 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11949 * for the PCI subsystem to perform proper recovery as desired. 11950 * 11951 * Return codes 11952 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11953 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11954 **/ 11955 static pci_ers_result_t 11956 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11957 { 11958 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11959 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11960 11961 switch (state) { 11962 case pci_channel_io_normal: 11963 /* Non-fatal error, prepare for recovery */ 11964 lpfc_sli4_prep_dev_for_recover(phba); 11965 return PCI_ERS_RESULT_CAN_RECOVER; 11966 case pci_channel_io_frozen: 11967 /* Fatal error, prepare for slot reset */ 11968 lpfc_sli4_prep_dev_for_reset(phba); 11969 return PCI_ERS_RESULT_NEED_RESET; 11970 case pci_channel_io_perm_failure: 11971 /* Permanent failure, prepare for device down */ 11972 lpfc_sli4_prep_dev_for_perm_failure(phba); 11973 return PCI_ERS_RESULT_DISCONNECT; 11974 default: 11975 /* Unknown state, prepare and request slot reset */ 11976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11977 "2825 Unknown PCI error state: x%x\n", state); 11978 lpfc_sli4_prep_dev_for_reset(phba); 11979 return PCI_ERS_RESULT_NEED_RESET; 11980 } 11981 } 11982 11983 /** 11984 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11985 * @pdev: pointer to PCI device. 11986 * 11987 * This routine is called from the PCI subsystem for error handling to device 11988 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11989 * restart the PCI card from scratch, as if from a cold-boot. During the 11990 * PCI subsystem error recovery, after the driver returns 11991 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11992 * recovery and then call this routine before calling the .resume method to 11993 * recover the device. This function will initialize the HBA device, enable 11994 * the interrupt, but it will just put the HBA to offline state without 11995 * passing any I/O traffic. 11996 * 11997 * Return codes 11998 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11999 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12000 */ 12001 static pci_ers_result_t 12002 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 12003 { 12004 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12005 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12006 struct lpfc_sli *psli = &phba->sli; 12007 uint32_t intr_mode; 12008 12009 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 12010 if (pci_enable_device_mem(pdev)) { 12011 printk(KERN_ERR "lpfc: Cannot re-enable " 12012 "PCI device after reset.\n"); 12013 return PCI_ERS_RESULT_DISCONNECT; 12014 } 12015 12016 pci_restore_state(pdev); 12017 12018 /* 12019 * As the new kernel behavior of pci_restore_state() API call clears 12020 * device saved_state flag, need to save the restored state again. 12021 */ 12022 pci_save_state(pdev); 12023 12024 if (pdev->is_busmaster) 12025 pci_set_master(pdev); 12026 12027 spin_lock_irq(&phba->hbalock); 12028 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 12029 spin_unlock_irq(&phba->hbalock); 12030 12031 /* Configure and enable interrupt */ 12032 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 12033 if (intr_mode == LPFC_INTR_ERROR) { 12034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12035 "2824 Cannot re-enable interrupt after " 12036 "slot reset.\n"); 12037 return PCI_ERS_RESULT_DISCONNECT; 12038 } else 12039 phba->intr_mode = intr_mode; 12040 12041 /* Log the current active interrupt mode */ 12042 lpfc_log_intr_mode(phba, phba->intr_mode); 12043 12044 return PCI_ERS_RESULT_RECOVERED; 12045 } 12046 12047 /** 12048 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 12049 * @pdev: pointer to PCI device 12050 * 12051 * This routine is called from the PCI subsystem for error handling to device 12052 * with SLI-4 interface spec. It is called when kernel error recovery tells 12053 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 12054 * error recovery. After this call, traffic can start to flow from this device 12055 * again. 12056 **/ 12057 static void 12058 lpfc_io_resume_s4(struct pci_dev *pdev) 12059 { 12060 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12061 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12062 12063 /* 12064 * In case of slot reset, as function reset is performed through 12065 * mailbox command which needs DMA to be enabled, this operation 12066 * has to be moved to the io resume phase. Taking device offline 12067 * will perform the necessary cleanup. 12068 */ 12069 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 12070 /* Perform device reset */ 12071 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 12072 lpfc_offline(phba); 12073 lpfc_sli_brdrestart(phba); 12074 /* Bring the device back online */ 12075 lpfc_online(phba); 12076 } 12077 12078 /* Clean up Advanced Error Reporting (AER) if needed */ 12079 if (phba->hba_flag & HBA_AER_ENABLED) 12080 pci_cleanup_aer_uncorrect_error_status(pdev); 12081 } 12082 12083 /** 12084 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 12085 * @pdev: pointer to PCI device 12086 * @pid: pointer to PCI device identifier 12087 * 12088 * This routine is to be registered to the kernel's PCI subsystem. When an 12089 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 12090 * at PCI device-specific information of the device and driver to see if the 12091 * driver state that it can support this kind of device. If the match is 12092 * successful, the driver core invokes this routine. This routine dispatches 12093 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 12094 * do all the initialization that it needs to do to handle the HBA device 12095 * properly. 12096 * 12097 * Return code 12098 * 0 - driver can claim the device 12099 * negative value - driver can not claim the device 12100 **/ 12101 static int 12102 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 12103 { 12104 int rc; 12105 struct lpfc_sli_intf intf; 12106 12107 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 12108 return -ENODEV; 12109 12110 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 12111 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 12112 rc = lpfc_pci_probe_one_s4(pdev, pid); 12113 else 12114 rc = lpfc_pci_probe_one_s3(pdev, pid); 12115 12116 return rc; 12117 } 12118 12119 /** 12120 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 12121 * @pdev: pointer to PCI device 12122 * 12123 * This routine is to be registered to the kernel's PCI subsystem. When an 12124 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 12125 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 12126 * remove routine, which will perform all the necessary cleanup for the 12127 * device to be removed from the PCI subsystem properly. 12128 **/ 12129 static void 12130 lpfc_pci_remove_one(struct pci_dev *pdev) 12131 { 12132 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12133 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12134 12135 switch (phba->pci_dev_grp) { 12136 case LPFC_PCI_DEV_LP: 12137 lpfc_pci_remove_one_s3(pdev); 12138 break; 12139 case LPFC_PCI_DEV_OC: 12140 lpfc_pci_remove_one_s4(pdev); 12141 break; 12142 default: 12143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12144 "1424 Invalid PCI device group: 0x%x\n", 12145 phba->pci_dev_grp); 12146 break; 12147 } 12148 return; 12149 } 12150 12151 /** 12152 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 12153 * @pdev: pointer to PCI device 12154 * @msg: power management message 12155 * 12156 * This routine is to be registered to the kernel's PCI subsystem to support 12157 * system Power Management (PM). When PM invokes this method, it dispatches 12158 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 12159 * suspend the device. 12160 * 12161 * Return code 12162 * 0 - driver suspended the device 12163 * Error otherwise 12164 **/ 12165 static int 12166 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 12167 { 12168 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12169 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12170 int rc = -ENODEV; 12171 12172 switch (phba->pci_dev_grp) { 12173 case LPFC_PCI_DEV_LP: 12174 rc = lpfc_pci_suspend_one_s3(pdev, msg); 12175 break; 12176 case LPFC_PCI_DEV_OC: 12177 rc = lpfc_pci_suspend_one_s4(pdev, msg); 12178 break; 12179 default: 12180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12181 "1425 Invalid PCI device group: 0x%x\n", 12182 phba->pci_dev_grp); 12183 break; 12184 } 12185 return rc; 12186 } 12187 12188 /** 12189 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 12190 * @pdev: pointer to PCI device 12191 * 12192 * This routine is to be registered to the kernel's PCI subsystem to support 12193 * system Power Management (PM). When PM invokes this method, it dispatches 12194 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 12195 * resume the device. 12196 * 12197 * Return code 12198 * 0 - driver suspended the device 12199 * Error otherwise 12200 **/ 12201 static int 12202 lpfc_pci_resume_one(struct pci_dev *pdev) 12203 { 12204 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12205 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12206 int rc = -ENODEV; 12207 12208 switch (phba->pci_dev_grp) { 12209 case LPFC_PCI_DEV_LP: 12210 rc = lpfc_pci_resume_one_s3(pdev); 12211 break; 12212 case LPFC_PCI_DEV_OC: 12213 rc = lpfc_pci_resume_one_s4(pdev); 12214 break; 12215 default: 12216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12217 "1426 Invalid PCI device group: 0x%x\n", 12218 phba->pci_dev_grp); 12219 break; 12220 } 12221 return rc; 12222 } 12223 12224 /** 12225 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 12226 * @pdev: pointer to PCI device. 12227 * @state: the current PCI connection state. 12228 * 12229 * This routine is registered to the PCI subsystem for error handling. This 12230 * function is called by the PCI subsystem after a PCI bus error affecting 12231 * this device has been detected. When this routine is invoked, it dispatches 12232 * the action to the proper SLI-3 or SLI-4 device error detected handling 12233 * routine, which will perform the proper error detected operation. 12234 * 12235 * Return codes 12236 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 12237 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12238 **/ 12239 static pci_ers_result_t 12240 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 12241 { 12242 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12243 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12244 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 12245 12246 switch (phba->pci_dev_grp) { 12247 case LPFC_PCI_DEV_LP: 12248 rc = lpfc_io_error_detected_s3(pdev, state); 12249 break; 12250 case LPFC_PCI_DEV_OC: 12251 rc = lpfc_io_error_detected_s4(pdev, state); 12252 break; 12253 default: 12254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12255 "1427 Invalid PCI device group: 0x%x\n", 12256 phba->pci_dev_grp); 12257 break; 12258 } 12259 return rc; 12260 } 12261 12262 /** 12263 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 12264 * @pdev: pointer to PCI device. 12265 * 12266 * This routine is registered to the PCI subsystem for error handling. This 12267 * function is called after PCI bus has been reset to restart the PCI card 12268 * from scratch, as if from a cold-boot. When this routine is invoked, it 12269 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 12270 * routine, which will perform the proper device reset. 12271 * 12272 * Return codes 12273 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 12274 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12275 **/ 12276 static pci_ers_result_t 12277 lpfc_io_slot_reset(struct pci_dev *pdev) 12278 { 12279 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12280 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12281 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 12282 12283 switch (phba->pci_dev_grp) { 12284 case LPFC_PCI_DEV_LP: 12285 rc = lpfc_io_slot_reset_s3(pdev); 12286 break; 12287 case LPFC_PCI_DEV_OC: 12288 rc = lpfc_io_slot_reset_s4(pdev); 12289 break; 12290 default: 12291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12292 "1428 Invalid PCI device group: 0x%x\n", 12293 phba->pci_dev_grp); 12294 break; 12295 } 12296 return rc; 12297 } 12298 12299 /** 12300 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 12301 * @pdev: pointer to PCI device 12302 * 12303 * This routine is registered to the PCI subsystem for error handling. It 12304 * is called when kernel error recovery tells the lpfc driver that it is 12305 * OK to resume normal PCI operation after PCI bus error recovery. When 12306 * this routine is invoked, it dispatches the action to the proper SLI-3 12307 * or SLI-4 device io_resume routine, which will resume the device operation. 12308 **/ 12309 static void 12310 lpfc_io_resume(struct pci_dev *pdev) 12311 { 12312 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12313 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12314 12315 switch (phba->pci_dev_grp) { 12316 case LPFC_PCI_DEV_LP: 12317 lpfc_io_resume_s3(pdev); 12318 break; 12319 case LPFC_PCI_DEV_OC: 12320 lpfc_io_resume_s4(pdev); 12321 break; 12322 default: 12323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12324 "1429 Invalid PCI device group: 0x%x\n", 12325 phba->pci_dev_grp); 12326 break; 12327 } 12328 return; 12329 } 12330 12331 /** 12332 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12333 * @phba: pointer to lpfc hba data structure. 12334 * 12335 * This routine checks to see if OAS is supported for this adapter. If 12336 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12337 * the enable oas flag is cleared and the pool created for OAS device data 12338 * is destroyed. 12339 * 12340 **/ 12341 void 12342 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12343 { 12344 12345 if (!phba->cfg_EnableXLane) 12346 return; 12347 12348 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12349 phba->cfg_fof = 1; 12350 } else { 12351 phba->cfg_fof = 0; 12352 if (phba->device_data_mem_pool) 12353 mempool_destroy(phba->device_data_mem_pool); 12354 phba->device_data_mem_pool = NULL; 12355 } 12356 12357 return; 12358 } 12359 12360 /** 12361 * lpfc_fof_queue_setup - Set up all the fof queues 12362 * @phba: pointer to lpfc hba data structure. 12363 * 12364 * This routine is invoked to set up all the fof queues for the FC HBA 12365 * operation. 12366 * 12367 * Return codes 12368 * 0 - successful 12369 * -ENOMEM - No available memory 12370 **/ 12371 int 12372 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12373 { 12374 struct lpfc_sli_ring *pring; 12375 int rc; 12376 12377 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12378 if (rc) 12379 return -ENOMEM; 12380 12381 if (phba->cfg_fof) { 12382 12383 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12384 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12385 if (rc) 12386 goto out_oas_cq; 12387 12388 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12389 phba->sli4_hba.oas_cq, LPFC_FCP); 12390 if (rc) 12391 goto out_oas_wq; 12392 12393 /* Bind this CQ/WQ to the NVME ring */ 12394 pring = phba->sli4_hba.oas_wq->pring; 12395 pring->sli.sli4.wqp = 12396 (void *)phba->sli4_hba.oas_wq; 12397 phba->sli4_hba.oas_cq->pring = pring; 12398 } 12399 12400 return 0; 12401 12402 out_oas_wq: 12403 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12404 out_oas_cq: 12405 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12406 return rc; 12407 12408 } 12409 12410 /** 12411 * lpfc_fof_queue_create - Create all the fof queues 12412 * @phba: pointer to lpfc hba data structure. 12413 * 12414 * This routine is invoked to allocate all the fof queues for the FC HBA 12415 * operation. For each SLI4 queue type, the parameters such as queue entry 12416 * count (queue depth) shall be taken from the module parameter. For now, 12417 * we just use some constant number as place holder. 12418 * 12419 * Return codes 12420 * 0 - successful 12421 * -ENOMEM - No availble memory 12422 * -EIO - The mailbox failed to complete successfully. 12423 **/ 12424 int 12425 lpfc_fof_queue_create(struct lpfc_hba *phba) 12426 { 12427 struct lpfc_queue *qdesc; 12428 uint32_t wqesize; 12429 12430 /* Create FOF EQ */ 12431 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 12432 phba->sli4_hba.eq_esize, 12433 phba->sli4_hba.eq_ecount); 12434 if (!qdesc) 12435 goto out_error; 12436 12437 qdesc->qe_valid = 1; 12438 phba->sli4_hba.fof_eq = qdesc; 12439 12440 if (phba->cfg_fof) { 12441 12442 /* Create OAS CQ */ 12443 if (phba->enab_exp_wqcq_pages) 12444 qdesc = lpfc_sli4_queue_alloc(phba, 12445 LPFC_EXPANDED_PAGE_SIZE, 12446 phba->sli4_hba.cq_esize, 12447 LPFC_CQE_EXP_COUNT); 12448 else 12449 qdesc = lpfc_sli4_queue_alloc(phba, 12450 LPFC_DEFAULT_PAGE_SIZE, 12451 phba->sli4_hba.cq_esize, 12452 phba->sli4_hba.cq_ecount); 12453 if (!qdesc) 12454 goto out_error; 12455 12456 qdesc->qe_valid = 1; 12457 phba->sli4_hba.oas_cq = qdesc; 12458 12459 /* Create OAS WQ */ 12460 if (phba->enab_exp_wqcq_pages) { 12461 wqesize = (phba->fcp_embed_io) ? 12462 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12463 qdesc = lpfc_sli4_queue_alloc(phba, 12464 LPFC_EXPANDED_PAGE_SIZE, 12465 wqesize, 12466 LPFC_WQE_EXP_COUNT); 12467 } else 12468 qdesc = lpfc_sli4_queue_alloc(phba, 12469 LPFC_DEFAULT_PAGE_SIZE, 12470 phba->sli4_hba.wq_esize, 12471 phba->sli4_hba.wq_ecount); 12472 12473 if (!qdesc) 12474 goto out_error; 12475 12476 phba->sli4_hba.oas_wq = qdesc; 12477 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12478 12479 } 12480 return 0; 12481 12482 out_error: 12483 lpfc_fof_queue_destroy(phba); 12484 return -ENOMEM; 12485 } 12486 12487 /** 12488 * lpfc_fof_queue_destroy - Destroy all the fof queues 12489 * @phba: pointer to lpfc hba data structure. 12490 * 12491 * This routine is invoked to release all the SLI4 queues with the FC HBA 12492 * operation. 12493 * 12494 * Return codes 12495 * 0 - successful 12496 **/ 12497 int 12498 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12499 { 12500 /* Release FOF Event queue */ 12501 if (phba->sli4_hba.fof_eq != NULL) { 12502 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12503 phba->sli4_hba.fof_eq = NULL; 12504 } 12505 12506 /* Release OAS Completion queue */ 12507 if (phba->sli4_hba.oas_cq != NULL) { 12508 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12509 phba->sli4_hba.oas_cq = NULL; 12510 } 12511 12512 /* Release OAS Work queue */ 12513 if (phba->sli4_hba.oas_wq != NULL) { 12514 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12515 phba->sli4_hba.oas_wq = NULL; 12516 } 12517 return 0; 12518 } 12519 12520 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12521 12522 static const struct pci_error_handlers lpfc_err_handler = { 12523 .error_detected = lpfc_io_error_detected, 12524 .slot_reset = lpfc_io_slot_reset, 12525 .resume = lpfc_io_resume, 12526 }; 12527 12528 static struct pci_driver lpfc_driver = { 12529 .name = LPFC_DRIVER_NAME, 12530 .id_table = lpfc_id_table, 12531 .probe = lpfc_pci_probe_one, 12532 .remove = lpfc_pci_remove_one, 12533 .shutdown = lpfc_pci_remove_one, 12534 .suspend = lpfc_pci_suspend_one, 12535 .resume = lpfc_pci_resume_one, 12536 .err_handler = &lpfc_err_handler, 12537 }; 12538 12539 static const struct file_operations lpfc_mgmt_fop = { 12540 .owner = THIS_MODULE, 12541 }; 12542 12543 static struct miscdevice lpfc_mgmt_dev = { 12544 .minor = MISC_DYNAMIC_MINOR, 12545 .name = "lpfcmgmt", 12546 .fops = &lpfc_mgmt_fop, 12547 }; 12548 12549 /** 12550 * lpfc_init - lpfc module initialization routine 12551 * 12552 * This routine is to be invoked when the lpfc module is loaded into the 12553 * kernel. The special kernel macro module_init() is used to indicate the 12554 * role of this routine to the kernel as lpfc module entry point. 12555 * 12556 * Return codes 12557 * 0 - successful 12558 * -ENOMEM - FC attach transport failed 12559 * all others - failed 12560 */ 12561 static int __init 12562 lpfc_init(void) 12563 { 12564 int error = 0; 12565 12566 printk(LPFC_MODULE_DESC "\n"); 12567 printk(LPFC_COPYRIGHT "\n"); 12568 12569 error = misc_register(&lpfc_mgmt_dev); 12570 if (error) 12571 printk(KERN_ERR "Could not register lpfcmgmt device, " 12572 "misc_register returned with status %d", error); 12573 12574 lpfc_transport_functions.vport_create = lpfc_vport_create; 12575 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12576 lpfc_transport_template = 12577 fc_attach_transport(&lpfc_transport_functions); 12578 if (lpfc_transport_template == NULL) 12579 return -ENOMEM; 12580 lpfc_vport_transport_template = 12581 fc_attach_transport(&lpfc_vport_transport_functions); 12582 if (lpfc_vport_transport_template == NULL) { 12583 fc_release_transport(lpfc_transport_template); 12584 return -ENOMEM; 12585 } 12586 lpfc_nvme_cmd_template(); 12587 lpfc_nvmet_cmd_template(); 12588 12589 /* Initialize in case vector mapping is needed */ 12590 lpfc_used_cpu = NULL; 12591 lpfc_present_cpu = num_present_cpus(); 12592 12593 error = pci_register_driver(&lpfc_driver); 12594 if (error) { 12595 fc_release_transport(lpfc_transport_template); 12596 fc_release_transport(lpfc_vport_transport_template); 12597 } 12598 12599 return error; 12600 } 12601 12602 /** 12603 * lpfc_exit - lpfc module removal routine 12604 * 12605 * This routine is invoked when the lpfc module is removed from the kernel. 12606 * The special kernel macro module_exit() is used to indicate the role of 12607 * this routine to the kernel as lpfc module exit point. 12608 */ 12609 static void __exit 12610 lpfc_exit(void) 12611 { 12612 misc_deregister(&lpfc_mgmt_dev); 12613 pci_unregister_driver(&lpfc_driver); 12614 fc_release_transport(lpfc_transport_template); 12615 fc_release_transport(lpfc_vport_transport_template); 12616 if (_dump_buf_data) { 12617 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12618 "_dump_buf_data at 0x%p\n", 12619 (1L << _dump_buf_data_order), _dump_buf_data); 12620 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12621 } 12622 12623 if (_dump_buf_dif) { 12624 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12625 "_dump_buf_dif at 0x%p\n", 12626 (1L << _dump_buf_dif_order), _dump_buf_dif); 12627 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12628 } 12629 kfree(lpfc_used_cpu); 12630 idr_destroy(&lpfc_hba_index); 12631 } 12632 12633 module_init(lpfc_init); 12634 module_exit(lpfc_exit); 12635 MODULE_LICENSE("GPL"); 12636 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12637 MODULE_AUTHOR("Broadcom"); 12638 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12639