1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/pci.h> 24#include <linux/slab.h> 25#include <linux/interrupt.h> 26 27#include <scsi/scsi_device.h> 28#include <scsi/scsi_transport_fc.h> 29#include <scsi/scsi.h> 30#include <scsi/fc/fc_fs.h> 31 32#include "lpfc_hw4.h" 33#include "lpfc_hw.h" 34#include "lpfc_sli.h" 35#include "lpfc_sli4.h" 36#include "lpfc_nl.h" 37#include "lpfc_disc.h" 38#include "lpfc_scsi.h" 39#include "lpfc.h" 40#include "lpfc_logmsg.h" 41#include "lpfc_crtn.h" 42#include "lpfc_compat.h" 43 44/** 45 * lpfc_dump_static_vport - Dump HBA's static vport information. 46 * @phba: pointer to lpfc hba data structure. 47 * @pmb: pointer to the driver internal queue element for mailbox command. 48 * @offset: offset for dumping vport info. 49 * 50 * The dump mailbox command provides a method for the device driver to obtain 51 * various types of information from the HBA device. 52 * 53 * This routine prepares the mailbox command for dumping list of static 54 * vports to be created. 55 **/ 56int 57lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, 58 uint16_t offset) 59{ 60 MAILBOX_t *mb; 61 struct lpfc_dmabuf *mp; 62 63 mb = &pmb->u.mb; 64 65 /* Setup to dump vport info region */ 66 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 67 mb->mbxCommand = MBX_DUMP_MEMORY; 68 mb->un.varDmp.type = DMP_NV_PARAMS; 69 mb->un.varDmp.entry_index = offset; 70 mb->un.varDmp.region_id = DMP_REGION_VPORT; 71 mb->mbxOwner = OWN_HOST; 72 73 /* For SLI3 HBAs data is embedded in mailbox */ 74 if (phba->sli_rev != LPFC_SLI_REV4) { 75 mb->un.varDmp.cv = 1; 76 mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t); 77 return 0; 78 } 79 80 /* For SLI4 HBAs driver need to allocate memory */ 81 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 82 if (mp) 83 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 84 85 if (!mp || !mp->virt) { 86 kfree(mp); 87 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 88 "2605 lpfc_dump_static_vport: memory" 89 " allocation failed\n"); 90 return 1; 91 } 92 memset(mp->virt, 0, LPFC_BPL_SIZE); 93 INIT_LIST_HEAD(&mp->list); 94 /* save address for completion */ 95 pmb->context2 = (uint8_t *) mp; 96 mb->un.varWords[3] = putPaddrLow(mp->phys); 97 mb->un.varWords[4] = putPaddrHigh(mp->phys); 98 mb->un.varDmp.sli4_length = sizeof(struct static_vport_info); 99 100 return 0; 101} 102 103/** 104 * lpfc_down_link - Bring down HBAs link. 105 * @phba: pointer to lpfc hba data structure. 106 * @pmb: pointer to the driver internal queue element for mailbox command. 107 * 108 * This routine prepares a mailbox command to bring down HBA link. 109 **/ 110void 111lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 112{ 113 MAILBOX_t *mb; 114 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 115 mb = &pmb->u.mb; 116 mb->mbxCommand = MBX_DOWN_LINK; 117 mb->mbxOwner = OWN_HOST; 118} 119 120/** 121 * lpfc_dump_mem - Prepare a mailbox command for reading a region. 122 * @phba: pointer to lpfc hba data structure. 123 * @pmb: pointer to the driver internal queue element for mailbox command. 124 * @offset: offset into the region. 125 * @region_id: config region id. 126 * 127 * The dump mailbox command provides a method for the device driver to obtain 128 * various types of information from the HBA device. 129 * 130 * This routine prepares the mailbox command for dumping HBA's config region. 131 **/ 132void 133lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset, 134 uint16_t region_id) 135{ 136 MAILBOX_t *mb; 137 void *ctx; 138 139 mb = &pmb->u.mb; 140 ctx = pmb->context2; 141 142 /* Setup to dump VPD region */ 143 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 144 mb->mbxCommand = MBX_DUMP_MEMORY; 145 mb->un.varDmp.cv = 1; 146 mb->un.varDmp.type = DMP_NV_PARAMS; 147 mb->un.varDmp.entry_index = offset; 148 mb->un.varDmp.region_id = region_id; 149 mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t)); 150 mb->un.varDmp.co = 0; 151 mb->un.varDmp.resp_offset = 0; 152 pmb->context2 = ctx; 153 mb->mbxOwner = OWN_HOST; 154 return; 155} 156 157/** 158 * lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params 159 * @phba: pointer to lpfc hba data structure. 160 * @pmb: pointer to the driver internal queue element for mailbox command. 161 * 162 * This function create a dump memory mailbox command to dump wake up 163 * parameters. 164 */ 165void 166lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 167{ 168 MAILBOX_t *mb; 169 void *ctx; 170 171 mb = &pmb->u.mb; 172 /* Save context so that we can restore after memset */ 173 ctx = pmb->context2; 174 175 /* Setup to dump VPD region */ 176 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 177 mb->mbxCommand = MBX_DUMP_MEMORY; 178 mb->mbxOwner = OWN_HOST; 179 mb->un.varDmp.cv = 1; 180 mb->un.varDmp.type = DMP_NV_PARAMS; 181 mb->un.varDmp.entry_index = 0; 182 mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID; 183 mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE; 184 mb->un.varDmp.co = 0; 185 mb->un.varDmp.resp_offset = 0; 186 pmb->context2 = ctx; 187 return; 188} 189 190/** 191 * lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param 192 * @phba: pointer to lpfc hba data structure. 193 * @pmb: pointer to the driver internal queue element for mailbox command. 194 * 195 * The read NVRAM mailbox command returns the HBA's non-volatile parameters 196 * that are used as defaults when the Fibre Channel link is brought on-line. 197 * 198 * This routine prepares the mailbox command for reading information stored 199 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN. 200 **/ 201void 202lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 203{ 204 MAILBOX_t *mb; 205 206 mb = &pmb->u.mb; 207 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 208 mb->mbxCommand = MBX_READ_NV; 209 mb->mbxOwner = OWN_HOST; 210 return; 211} 212 213/** 214 * lpfc_config_async - Prepare a mailbox command for enabling HBA async event 215 * @phba: pointer to lpfc hba data structure. 216 * @pmb: pointer to the driver internal queue element for mailbox command. 217 * @ring: ring number for the asynchronous event to be configured. 218 * 219 * The asynchronous event enable mailbox command is used to enable the 220 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and 221 * specifies the default ring to which events are posted. 222 * 223 * This routine prepares the mailbox command for enabling HBA asynchronous 224 * event support on a IOCB ring. 225 **/ 226void 227lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, 228 uint32_t ring) 229{ 230 MAILBOX_t *mb; 231 232 mb = &pmb->u.mb; 233 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 234 mb->mbxCommand = MBX_ASYNCEVT_ENABLE; 235 mb->un.varCfgAsyncEvent.ring = ring; 236 mb->mbxOwner = OWN_HOST; 237 return; 238} 239 240/** 241 * lpfc_heart_beat - Prepare a mailbox command for heart beat 242 * @phba: pointer to lpfc hba data structure. 243 * @pmb: pointer to the driver internal queue element for mailbox command. 244 * 245 * The heart beat mailbox command is used to detect an unresponsive HBA, which 246 * is defined as any device where no error attention is sent and both mailbox 247 * and rings are not processed. 248 * 249 * This routine prepares the mailbox command for issuing a heart beat in the 250 * form of mailbox command to the HBA. The timely completion of the heart 251 * beat mailbox command indicates the health of the HBA. 252 **/ 253void 254lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 255{ 256 MAILBOX_t *mb; 257 258 mb = &pmb->u.mb; 259 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 260 mb->mbxCommand = MBX_HEARTBEAT; 261 mb->mbxOwner = OWN_HOST; 262 return; 263} 264 265/** 266 * lpfc_read_la - Prepare a mailbox command for reading HBA link attention 267 * @phba: pointer to lpfc hba data structure. 268 * @pmb: pointer to the driver internal queue element for mailbox command. 269 * @mp: DMA buffer memory for reading the link attention information into. 270 * 271 * The read link attention mailbox command is issued to read the Link Event 272 * Attention information indicated by the HBA port when the Link Event bit 273 * of the Host Attention (HSTATT) register is set to 1. A Link Event 274 * Attention occurs based on an exception detected at the Fibre Channel link 275 * interface. 276 * 277 * This routine prepares the mailbox command for reading HBA link attention 278 * information. A DMA memory has been set aside and address passed to the 279 * HBA through @mp for the HBA to DMA link attention information into the 280 * memory as part of the execution of the mailbox command. 281 * 282 * Return codes 283 * 0 - Success (currently always return 0) 284 **/ 285int 286lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) 287{ 288 MAILBOX_t *mb; 289 struct lpfc_sli *psli; 290 291 psli = &phba->sli; 292 mb = &pmb->u.mb; 293 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 294 295 INIT_LIST_HEAD(&mp->list); 296 mb->mbxCommand = MBX_READ_LA64; 297 mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128; 298 mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys); 299 mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys); 300 301 /* Save address for later completion and set the owner to host so that 302 * the FW knows this mailbox is available for processing. 303 */ 304 pmb->context1 = (uint8_t *) mp; 305 mb->mbxOwner = OWN_HOST; 306 return (0); 307} 308 309/** 310 * lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention 311 * @phba: pointer to lpfc hba data structure. 312 * @pmb: pointer to the driver internal queue element for mailbox command. 313 * 314 * The clear link attention mailbox command is issued to clear the link event 315 * attention condition indicated by the Link Event bit of the Host Attention 316 * (HSTATT) register. The link event attention condition is cleared only if 317 * the event tag specified matches that of the current link event counter. 318 * The current event tag is read using the read link attention event mailbox 319 * command. 320 * 321 * This routine prepares the mailbox command for clearing HBA link attention 322 * information. 323 **/ 324void 325lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 326{ 327 MAILBOX_t *mb; 328 329 mb = &pmb->u.mb; 330 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 331 332 mb->un.varClearLA.eventTag = phba->fc_eventTag; 333 mb->mbxCommand = MBX_CLEAR_LA; 334 mb->mbxOwner = OWN_HOST; 335 return; 336} 337 338/** 339 * lpfc_config_link - Prepare a mailbox command for configuring link on a HBA 340 * @phba: pointer to lpfc hba data structure. 341 * @pmb: pointer to the driver internal queue element for mailbox command. 342 * 343 * The configure link mailbox command is used before the initialize link 344 * mailbox command to override default value and to configure link-oriented 345 * parameters such as DID address and various timers. Typically, this 346 * command would be used after an F_Port login to set the returned DID address 347 * and the fabric timeout values. This command is not valid before a configure 348 * port command has configured the HBA port. 349 * 350 * This routine prepares the mailbox command for configuring link on a HBA. 351 **/ 352void 353lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 354{ 355 struct lpfc_vport *vport = phba->pport; 356 MAILBOX_t *mb = &pmb->u.mb; 357 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 358 359 /* NEW_FEATURE 360 * SLI-2, Coalescing Response Feature. 361 */ 362 if (phba->cfg_cr_delay) { 363 mb->un.varCfgLnk.cr = 1; 364 mb->un.varCfgLnk.ci = 1; 365 mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay; 366 mb->un.varCfgLnk.cr_count = phba->cfg_cr_count; 367 } 368 369 mb->un.varCfgLnk.myId = vport->fc_myDID; 370 mb->un.varCfgLnk.edtov = phba->fc_edtov; 371 mb->un.varCfgLnk.arbtov = phba->fc_arbtov; 372 mb->un.varCfgLnk.ratov = phba->fc_ratov; 373 mb->un.varCfgLnk.rttov = phba->fc_rttov; 374 mb->un.varCfgLnk.altov = phba->fc_altov; 375 mb->un.varCfgLnk.crtov = phba->fc_crtov; 376 mb->un.varCfgLnk.citov = phba->fc_citov; 377 378 if (phba->cfg_ack0) 379 mb->un.varCfgLnk.ack0_enable = 1; 380 381 mb->mbxCommand = MBX_CONFIG_LINK; 382 mb->mbxOwner = OWN_HOST; 383 return; 384} 385 386/** 387 * lpfc_config_msi - Prepare a mailbox command for configuring msi-x 388 * @phba: pointer to lpfc hba data structure. 389 * @pmb: pointer to the driver internal queue element for mailbox command. 390 * 391 * The configure MSI-X mailbox command is used to configure the HBA's SLI-3 392 * MSI-X multi-message interrupt vector association to interrupt attention 393 * conditions. 394 * 395 * Return codes 396 * 0 - Success 397 * -EINVAL - Failure 398 **/ 399int 400lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 401{ 402 MAILBOX_t *mb = &pmb->u.mb; 403 uint32_t attentionConditions[2]; 404 405 /* Sanity check */ 406 if (phba->cfg_use_msi != 2) { 407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 408 "0475 Not configured for supporting MSI-X " 409 "cfg_use_msi: 0x%x\n", phba->cfg_use_msi); 410 return -EINVAL; 411 } 412 413 if (phba->sli_rev < 3) { 414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 415 "0476 HBA not supporting SLI-3 or later " 416 "SLI Revision: 0x%x\n", phba->sli_rev); 417 return -EINVAL; 418 } 419 420 /* Clear mailbox command fields */ 421 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 422 423 /* 424 * SLI-3, Message Signaled Interrupt Fearure. 425 */ 426 427 /* Multi-message attention configuration */ 428 attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT | 429 HA_LATT | HA_MBATT); 430 attentionConditions[1] = 0; 431 432 mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0]; 433 mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1]; 434 435 /* 436 * Set up message number to HA bit association 437 */ 438#ifdef __BIG_ENDIAN_BITFIELD 439 /* RA0 (FCP Ring) */ 440 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1; 441 /* RA1 (Other Protocol Extra Ring) */ 442 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1; 443#else /* __LITTLE_ENDIAN_BITFIELD */ 444 /* RA0 (FCP Ring) */ 445 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1; 446 /* RA1 (Other Protocol Extra Ring) */ 447 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1; 448#endif 449 /* Multi-message interrupt autoclear configuration*/ 450 mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0]; 451 mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1]; 452 453 /* For now, HBA autoclear does not work reliably, disable it */ 454 mb->un.varCfgMSI.autoClearHA[0] = 0; 455 mb->un.varCfgMSI.autoClearHA[1] = 0; 456 457 /* Set command and owner bit */ 458 mb->mbxCommand = MBX_CONFIG_MSI; 459 mb->mbxOwner = OWN_HOST; 460 461 return 0; 462} 463 464/** 465 * lpfc_init_link - Prepare a mailbox command for initialize link on a HBA 466 * @phba: pointer to lpfc hba data structure. 467 * @pmb: pointer to the driver internal queue element for mailbox command. 468 * @topology: the link topology for the link to be initialized to. 469 * @linkspeed: the link speed for the link to be initialized to. 470 * 471 * The initialize link mailbox command is used to initialize the Fibre 472 * Channel link. This command must follow a configure port command that 473 * establishes the mode of operation. 474 * 475 * This routine prepares the mailbox command for initializing link on a HBA 476 * with the specified link topology and speed. 477 **/ 478void 479lpfc_init_link(struct lpfc_hba * phba, 480 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed) 481{ 482 lpfc_vpd_t *vpd; 483 struct lpfc_sli *psli; 484 MAILBOX_t *mb; 485 486 mb = &pmb->u.mb; 487 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 488 489 psli = &phba->sli; 490 switch (topology) { 491 case FLAGS_TOPOLOGY_MODE_LOOP_PT: 492 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; 493 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; 494 break; 495 case FLAGS_TOPOLOGY_MODE_PT_PT: 496 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; 497 break; 498 case FLAGS_TOPOLOGY_MODE_LOOP: 499 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; 500 break; 501 case FLAGS_TOPOLOGY_MODE_PT_LOOP: 502 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; 503 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; 504 break; 505 case FLAGS_LOCAL_LB: 506 mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB; 507 break; 508 } 509 510 /* Enable asynchronous ABTS responses from firmware */ 511 mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT; 512 513 /* NEW_FEATURE 514 * Setting up the link speed 515 */ 516 vpd = &phba->vpd; 517 if (vpd->rev.feaLevelHigh >= 0x02){ 518 switch(linkspeed){ 519 case LINK_SPEED_1G: 520 case LINK_SPEED_2G: 521 case LINK_SPEED_4G: 522 case LINK_SPEED_8G: 523 mb->un.varInitLnk.link_flags |= 524 FLAGS_LINK_SPEED; 525 mb->un.varInitLnk.link_speed = linkspeed; 526 break; 527 case LINK_SPEED_AUTO: 528 default: 529 mb->un.varInitLnk.link_speed = 530 LINK_SPEED_AUTO; 531 break; 532 } 533 534 } 535 else 536 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO; 537 538 mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK; 539 mb->mbxOwner = OWN_HOST; 540 mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA; 541 return; 542} 543 544/** 545 * lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters 546 * @phba: pointer to lpfc hba data structure. 547 * @pmb: pointer to the driver internal queue element for mailbox command. 548 * @vpi: virtual N_Port identifier. 549 * 550 * The read service parameter mailbox command is used to read the HBA port 551 * service parameters. The service parameters are read into the buffer 552 * specified directly by a BDE in the mailbox command. These service 553 * parameters may then be used to build the payload of an N_Port/F_POrt 554 * login request and reply (LOGI/ACC). 555 * 556 * This routine prepares the mailbox command for reading HBA port service 557 * parameters. The DMA memory is allocated in this function and the addresses 558 * are populated into the mailbox command for the HBA to DMA the service 559 * parameters into. 560 * 561 * Return codes 562 * 0 - Success 563 * 1 - DMA memory allocation failed 564 **/ 565int 566lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi) 567{ 568 struct lpfc_dmabuf *mp; 569 MAILBOX_t *mb; 570 struct lpfc_sli *psli; 571 572 psli = &phba->sli; 573 mb = &pmb->u.mb; 574 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 575 576 mb->mbxOwner = OWN_HOST; 577 578 /* Get a buffer to hold the HBAs Service Parameters */ 579 580 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 581 if (mp) 582 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 583 if (!mp || !mp->virt) { 584 kfree(mp); 585 mb->mbxCommand = MBX_READ_SPARM64; 586 /* READ_SPARAM: no buffers */ 587 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 588 "0301 READ_SPARAM: no buffers\n"); 589 return (1); 590 } 591 INIT_LIST_HEAD(&mp->list); 592 mb->mbxCommand = MBX_READ_SPARM64; 593 mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); 594 mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys); 595 mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys); 596 mb->un.varRdSparm.vpi = vpi + phba->vpi_base; 597 598 /* save address for completion */ 599 pmb->context1 = mp; 600 601 return (0); 602} 603 604/** 605 * lpfc_unreg_did - Prepare a mailbox command for unregistering DID 606 * @phba: pointer to lpfc hba data structure. 607 * @vpi: virtual N_Port identifier. 608 * @did: remote port identifier. 609 * @pmb: pointer to the driver internal queue element for mailbox command. 610 * 611 * The unregister DID mailbox command is used to unregister an N_Port/F_Port 612 * login for an unknown RPI by specifying the DID of a remote port. This 613 * command frees an RPI context in the HBA port. This has the effect of 614 * performing an implicit N_Port/F_Port logout. 615 * 616 * This routine prepares the mailbox command for unregistering a remote 617 * N_Port/F_Port (DID) login. 618 **/ 619void 620lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did, 621 LPFC_MBOXQ_t * pmb) 622{ 623 MAILBOX_t *mb; 624 625 mb = &pmb->u.mb; 626 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 627 628 mb->un.varUnregDID.did = did; 629 if (vpi != 0xffff) 630 vpi += phba->vpi_base; 631 mb->un.varUnregDID.vpi = vpi; 632 633 mb->mbxCommand = MBX_UNREG_D_ID; 634 mb->mbxOwner = OWN_HOST; 635 return; 636} 637 638/** 639 * lpfc_read_config - Prepare a mailbox command for reading HBA configuration 640 * @phba: pointer to lpfc hba data structure. 641 * @pmb: pointer to the driver internal queue element for mailbox command. 642 * 643 * The read configuration mailbox command is used to read the HBA port 644 * configuration parameters. This mailbox command provides a method for 645 * seeing any parameters that may have changed via various configuration 646 * mailbox commands. 647 * 648 * This routine prepares the mailbox command for reading out HBA configuration 649 * parameters. 650 **/ 651void 652lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 653{ 654 MAILBOX_t *mb; 655 656 mb = &pmb->u.mb; 657 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 658 659 mb->mbxCommand = MBX_READ_CONFIG; 660 mb->mbxOwner = OWN_HOST; 661 return; 662} 663 664/** 665 * lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats 666 * @phba: pointer to lpfc hba data structure. 667 * @pmb: pointer to the driver internal queue element for mailbox command. 668 * 669 * The read link status mailbox command is used to read the link status from 670 * the HBA. Link status includes all link-related error counters. These 671 * counters are maintained by the HBA and originated in the link hardware 672 * unit. Note that all of these counters wrap. 673 * 674 * This routine prepares the mailbox command for reading out HBA link status. 675 **/ 676void 677lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 678{ 679 MAILBOX_t *mb; 680 681 mb = &pmb->u.mb; 682 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 683 684 mb->mbxCommand = MBX_READ_LNK_STAT; 685 mb->mbxOwner = OWN_HOST; 686 return; 687} 688 689/** 690 * lpfc_reg_rpi - Prepare a mailbox command for registering remote login 691 * @phba: pointer to lpfc hba data structure. 692 * @vpi: virtual N_Port identifier. 693 * @did: remote port identifier. 694 * @param: pointer to memory holding the server parameters. 695 * @pmb: pointer to the driver internal queue element for mailbox command. 696 * @flag: action flag to be passed back for the complete function. 697 * 698 * The registration login mailbox command is used to register an N_Port or 699 * F_Port login. This registration allows the HBA to cache the remote N_Port 700 * service parameters internally and thereby make the appropriate FC-2 701 * decisions. The remote port service parameters are handed off by the driver 702 * to the HBA using a descriptor entry that directly identifies a buffer in 703 * host memory. In exchange, the HBA returns an RPI identifier. 704 * 705 * This routine prepares the mailbox command for registering remote port login. 706 * The function allocates DMA buffer for passing the service parameters to the 707 * HBA with the mailbox command. 708 * 709 * Return codes 710 * 0 - Success 711 * 1 - DMA memory allocation failed 712 **/ 713int 714lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did, 715 uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag) 716{ 717 MAILBOX_t *mb = &pmb->u.mb; 718 uint8_t *sparam; 719 struct lpfc_dmabuf *mp; 720 721 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 722 723 mb->un.varRegLogin.rpi = 0; 724 if (phba->sli_rev == LPFC_SLI_REV4) { 725 mb->un.varRegLogin.rpi = lpfc_sli4_alloc_rpi(phba); 726 if (mb->un.varRegLogin.rpi == LPFC_RPI_ALLOC_ERROR) 727 return 1; 728 } 729 730 mb->un.varRegLogin.vpi = vpi + phba->vpi_base; 731 mb->un.varRegLogin.did = did; 732 mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */ 733 734 mb->mbxOwner = OWN_HOST; 735 736 /* Get a buffer to hold NPorts Service Parameters */ 737 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 738 if (mp) 739 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 740 if (!mp || !mp->virt) { 741 kfree(mp); 742 mb->mbxCommand = MBX_REG_LOGIN64; 743 /* REG_LOGIN: no buffers */ 744 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 745 "0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, " 746 "flag x%x\n", vpi, did, flag); 747 return (1); 748 } 749 INIT_LIST_HEAD(&mp->list); 750 sparam = mp->virt; 751 752 /* Copy param's into a new buffer */ 753 memcpy(sparam, param, sizeof (struct serv_parm)); 754 755 /* save address for completion */ 756 pmb->context1 = (uint8_t *) mp; 757 758 mb->mbxCommand = MBX_REG_LOGIN64; 759 mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); 760 mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys); 761 mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys); 762 763 return (0); 764} 765 766/** 767 * lpfc_unreg_login - Prepare a mailbox command for unregistering remote login 768 * @phba: pointer to lpfc hba data structure. 769 * @vpi: virtual N_Port identifier. 770 * @rpi: remote port identifier 771 * @pmb: pointer to the driver internal queue element for mailbox command. 772 * 773 * The unregistration login mailbox command is used to unregister an N_Port 774 * or F_Port login. This command frees an RPI context in the HBA. It has the 775 * effect of performing an implicit N_Port/F_Port logout. 776 * 777 * This routine prepares the mailbox command for unregistering remote port 778 * login. 779 **/ 780void 781lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi, 782 LPFC_MBOXQ_t * pmb) 783{ 784 MAILBOX_t *mb; 785 786 mb = &pmb->u.mb; 787 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 788 789 mb->un.varUnregLogin.rpi = (uint16_t) rpi; 790 mb->un.varUnregLogin.rsvd1 = 0; 791 mb->un.varUnregLogin.vpi = vpi + phba->vpi_base; 792 793 mb->mbxCommand = MBX_UNREG_LOGIN; 794 mb->mbxOwner = OWN_HOST; 795 796 return; 797} 798 799/** 800 * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier 801 * @phba: pointer to lpfc hba data structure. 802 * @vpi: virtual N_Port identifier. 803 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port). 804 * @pmb: pointer to the driver internal queue element for mailbox command. 805 * 806 * The registration vport identifier mailbox command is used to activate a 807 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the 808 * N_Port_ID against the information in the selected virtual N_Port context 809 * block and marks it active to allow normal processing of IOCB commands and 810 * received unsolicited exchanges. 811 * 812 * This routine prepares the mailbox command for registering a virtual N_Port. 813 **/ 814void 815lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb) 816{ 817 MAILBOX_t *mb = &pmb->u.mb; 818 struct lpfc_hba *phba = vport->phba; 819 820 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 821 /* 822 * Set the re-reg VPI bit for f/w to update the MAC address. 823 */ 824 if ((phba->sli_rev == LPFC_SLI_REV4) && 825 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) 826 mb->un.varRegVpi.upd = 1; 827 mb->un.varRegVpi.vpi = vport->vpi + vport->phba->vpi_base; 828 mb->un.varRegVpi.sid = vport->fc_myDID; 829 mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base; 830 memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname, 831 sizeof(struct lpfc_name)); 832 mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]); 833 mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]); 834 835 mb->mbxCommand = MBX_REG_VPI; 836 mb->mbxOwner = OWN_HOST; 837 return; 838 839} 840 841/** 842 * lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id 843 * @phba: pointer to lpfc hba data structure. 844 * @vpi: virtual N_Port identifier. 845 * @pmb: pointer to the driver internal queue element for mailbox command. 846 * 847 * The unregistration vport identifier mailbox command is used to inactivate 848 * a virtual N_Port. The driver must have logged out and unregistered all 849 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will 850 * unregisters any default RPIs associated with the specified vpi, aborting 851 * any active exchanges. The HBA will post the mailbox response after making 852 * the virtual N_Port inactive. 853 * 854 * This routine prepares the mailbox command for unregistering a virtual 855 * N_Port. 856 **/ 857void 858lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb) 859{ 860 MAILBOX_t *mb = &pmb->u.mb; 861 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 862 863 if (phba->sli_rev < LPFC_SLI_REV4) 864 mb->un.varUnregVpi.vpi = vpi + phba->vpi_base; 865 else 866 mb->un.varUnregVpi.sli4_vpi = vpi + phba->vpi_base; 867 868 mb->mbxCommand = MBX_UNREG_VPI; 869 mb->mbxOwner = OWN_HOST; 870 return; 871 872} 873 874/** 875 * lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB) 876 * @phba: pointer to lpfc hba data structure. 877 * 878 * This routine sets up and initializes the IOCB rings in the Port Control 879 * Block (PCB). 880 **/ 881static void 882lpfc_config_pcb_setup(struct lpfc_hba * phba) 883{ 884 struct lpfc_sli *psli = &phba->sli; 885 struct lpfc_sli_ring *pring; 886 PCB_t *pcbp = phba->pcb; 887 dma_addr_t pdma_addr; 888 uint32_t offset; 889 uint32_t iocbCnt = 0; 890 int i; 891 892 pcbp->maxRing = (psli->num_rings - 1); 893 894 for (i = 0; i < psli->num_rings; i++) { 895 pring = &psli->ring[i]; 896 897 pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE: 898 SLI2_IOCB_CMD_SIZE; 899 pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE: 900 SLI2_IOCB_RSP_SIZE; 901 /* A ring MUST have both cmd and rsp entries defined to be 902 valid */ 903 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) { 904 pcbp->rdsc[i].cmdEntries = 0; 905 pcbp->rdsc[i].rspEntries = 0; 906 pcbp->rdsc[i].cmdAddrHigh = 0; 907 pcbp->rdsc[i].rspAddrHigh = 0; 908 pcbp->rdsc[i].cmdAddrLow = 0; 909 pcbp->rdsc[i].rspAddrLow = 0; 910 pring->cmdringaddr = NULL; 911 pring->rspringaddr = NULL; 912 continue; 913 } 914 /* Command ring setup for ring */ 915 pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt]; 916 pcbp->rdsc[i].cmdEntries = pring->numCiocb; 917 918 offset = (uint8_t *) &phba->IOCBs[iocbCnt] - 919 (uint8_t *) phba->slim2p.virt; 920 pdma_addr = phba->slim2p.phys + offset; 921 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr); 922 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr); 923 iocbCnt += pring->numCiocb; 924 925 /* Response ring setup for ring */ 926 pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt]; 927 928 pcbp->rdsc[i].rspEntries = pring->numRiocb; 929 offset = (uint8_t *)&phba->IOCBs[iocbCnt] - 930 (uint8_t *)phba->slim2p.virt; 931 pdma_addr = phba->slim2p.phys + offset; 932 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr); 933 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr); 934 iocbCnt += pring->numRiocb; 935 } 936} 937 938/** 939 * lpfc_read_rev - Prepare a mailbox command for reading HBA revision 940 * @phba: pointer to lpfc hba data structure. 941 * @pmb: pointer to the driver internal queue element for mailbox command. 942 * 943 * The read revision mailbox command is used to read the revision levels of 944 * the HBA components. These components include hardware units, resident 945 * firmware, and available firmware. HBAs that supports SLI-3 mode of 946 * operation provide different response information depending on the version 947 * requested by the driver. 948 * 949 * This routine prepares the mailbox command for reading HBA revision 950 * information. 951 **/ 952void 953lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 954{ 955 MAILBOX_t *mb = &pmb->u.mb; 956 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 957 mb->un.varRdRev.cv = 1; 958 mb->un.varRdRev.v3req = 1; /* Request SLI3 info */ 959 mb->mbxCommand = MBX_READ_REV; 960 mb->mbxOwner = OWN_HOST; 961 return; 962} 963 964void 965lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 966{ 967 MAILBOX_t *mb = &pmb->u.mb; 968 struct lpfc_mqe *mqe; 969 970 switch (mb->mbxCommand) { 971 case MBX_READ_REV: 972 mqe = &pmb->u.mqe; 973 lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name, 974 mqe->un.read_rev.fw_name, 16); 975 lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name, 976 mqe->un.read_rev.ulp_fw_name, 16); 977 break; 978 default: 979 break; 980 } 981 return; 982} 983 984/** 985 * lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2 986 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 987 * @hbq_desc: pointer to the HBQ selection profile descriptor. 988 * 989 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA 990 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs 991 * the Sequence Length Test using the fields in the Selection Profile 2 992 * extension in words 20:31. 993 **/ 994static void 995lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb, 996 struct lpfc_hbq_init *hbq_desc) 997{ 998 hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt; 999 hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen; 1000 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff; 1001} 1002 1003/** 1004 * lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3 1005 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 1006 * @hbq_desc: pointer to the HBQ selection profile descriptor. 1007 * 1008 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA 1009 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs 1010 * the Sequence Length Test and Byte Field Test using the fields in the 1011 * Selection Profile 3 extension in words 20:31. 1012 **/ 1013static void 1014lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb, 1015 struct lpfc_hbq_init *hbq_desc) 1016{ 1017 hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt; 1018 hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen; 1019 hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff; 1020 hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff; 1021 memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch, 1022 sizeof(hbqmb->profiles.profile3.cmdmatch)); 1023} 1024 1025/** 1026 * lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5 1027 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 1028 * @hbq_desc: pointer to the HBQ selection profile descriptor. 1029 * 1030 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The 1031 * HBA tests the initial frame of an incoming sequence using the frame's 1032 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test 1033 * and Byte Field Test using the fields in the Selection Profile 5 extension 1034 * words 20:31. 1035 **/ 1036static void 1037lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb, 1038 struct lpfc_hbq_init *hbq_desc) 1039{ 1040 hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt; 1041 hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen; 1042 hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff; 1043 hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff; 1044 memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch, 1045 sizeof(hbqmb->profiles.profile5.cmdmatch)); 1046} 1047 1048/** 1049 * lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ 1050 * @phba: pointer to lpfc hba data structure. 1051 * @id: HBQ identifier. 1052 * @hbq_desc: pointer to the HBA descriptor data structure. 1053 * @hbq_entry_index: index of the HBQ entry data structures. 1054 * @pmb: pointer to the driver internal queue element for mailbox command. 1055 * 1056 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure 1057 * an HBQ. The configuration binds events that require buffers to a particular 1058 * ring and HBQ based on a selection profile. 1059 * 1060 * This routine prepares the mailbox command for configuring an HBQ. 1061 **/ 1062void 1063lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id, 1064 struct lpfc_hbq_init *hbq_desc, 1065 uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb) 1066{ 1067 int i; 1068 MAILBOX_t *mb = &pmb->u.mb; 1069 struct config_hbq_var *hbqmb = &mb->un.varCfgHbq; 1070 1071 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 1072 hbqmb->hbqId = id; 1073 hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */ 1074 hbqmb->recvNotify = hbq_desc->rn; /* Receive 1075 * Notification */ 1076 hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks 1077 * # in words 0-19 */ 1078 hbqmb->profile = hbq_desc->profile; /* Selection profile: 1079 * 0 = all, 1080 * 7 = logentry */ 1081 hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring 1082 * e.g. Ring0=b0001, 1083 * ring2=b0100 */ 1084 hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4 1085 * or 5 */ 1086 hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this 1087 * HBQ will be used 1088 * for LogEntry 1089 * buffers */ 1090 hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) + 1091 hbq_entry_index * sizeof(struct lpfc_hbq_entry); 1092 hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys); 1093 1094 mb->mbxCommand = MBX_CONFIG_HBQ; 1095 mb->mbxOwner = OWN_HOST; 1096 1097 /* Copy info for profiles 2,3,5. Other 1098 * profiles this area is reserved 1099 */ 1100 if (hbq_desc->profile == 2) 1101 lpfc_build_hbq_profile2(hbqmb, hbq_desc); 1102 else if (hbq_desc->profile == 3) 1103 lpfc_build_hbq_profile3(hbqmb, hbq_desc); 1104 else if (hbq_desc->profile == 5) 1105 lpfc_build_hbq_profile5(hbqmb, hbq_desc); 1106 1107 /* Return if no rctl / type masks for this HBQ */ 1108 if (!hbq_desc->mask_count) 1109 return; 1110 1111 /* Otherwise we setup specific rctl / type masks for this HBQ */ 1112 for (i = 0; i < hbq_desc->mask_count; i++) { 1113 hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch; 1114 hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask; 1115 hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch; 1116 hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask; 1117 } 1118 1119 return; 1120} 1121 1122/** 1123 * lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring 1124 * @phba: pointer to lpfc hba data structure. 1125 * @ring: 1126 * @pmb: pointer to the driver internal queue element for mailbox command. 1127 * 1128 * The configure ring mailbox command is used to configure an IOCB ring. This 1129 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the 1130 * ring. This is used to map incoming sequences to a particular ring whose 1131 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not 1132 * attempt to configure a ring whose number is greater than the number 1133 * specified in the Port Control Block (PCB). It is an error to issue the 1134 * configure ring command more than once with the same ring number. The HBA 1135 * returns an error if the driver attempts this. 1136 * 1137 * This routine prepares the mailbox command for configuring IOCB ring. 1138 **/ 1139void 1140lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) 1141{ 1142 int i; 1143 MAILBOX_t *mb = &pmb->u.mb; 1144 struct lpfc_sli *psli; 1145 struct lpfc_sli_ring *pring; 1146 1147 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 1148 1149 mb->un.varCfgRing.ring = ring; 1150 mb->un.varCfgRing.maxOrigXchg = 0; 1151 mb->un.varCfgRing.maxRespXchg = 0; 1152 mb->un.varCfgRing.recvNotify = 1; 1153 1154 psli = &phba->sli; 1155 pring = &psli->ring[ring]; 1156 mb->un.varCfgRing.numMask = pring->num_mask; 1157 mb->mbxCommand = MBX_CONFIG_RING; 1158 mb->mbxOwner = OWN_HOST; 1159 1160 /* Is this ring configured for a specific profile */ 1161 if (pring->prt[0].profile) { 1162 mb->un.varCfgRing.profile = pring->prt[0].profile; 1163 return; 1164 } 1165 1166 /* Otherwise we setup specific rctl / type masks for this ring */ 1167 for (i = 0; i < pring->num_mask; i++) { 1168 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl; 1169 if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ) 1170 mb->un.varCfgRing.rrRegs[i].rmask = 0xff; 1171 else 1172 mb->un.varCfgRing.rrRegs[i].rmask = 0xfe; 1173 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type; 1174 mb->un.varCfgRing.rrRegs[i].tmask = 0xff; 1175 } 1176 1177 return; 1178} 1179 1180/** 1181 * lpfc_config_port - Prepare a mailbox command for configuring port 1182 * @phba: pointer to lpfc hba data structure. 1183 * @pmb: pointer to the driver internal queue element for mailbox command. 1184 * 1185 * The configure port mailbox command is used to identify the Port Control 1186 * Block (PCB) in the driver memory. After this command is issued, the 1187 * driver must not access the mailbox in the HBA without first resetting 1188 * the HBA. The HBA may copy the PCB information to internal storage for 1189 * subsequent use; the driver can not change the PCB information unless it 1190 * resets the HBA. 1191 * 1192 * This routine prepares the mailbox command for configuring port. 1193 **/ 1194void 1195lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1196{ 1197 MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr; 1198 MAILBOX_t *mb = &pmb->u.mb; 1199 dma_addr_t pdma_addr; 1200 uint32_t bar_low, bar_high; 1201 size_t offset; 1202 struct lpfc_hgp hgp; 1203 int i; 1204 uint32_t pgp_offset; 1205 1206 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 1207 mb->mbxCommand = MBX_CONFIG_PORT; 1208 mb->mbxOwner = OWN_HOST; 1209 1210 mb->un.varCfgPort.pcbLen = sizeof(PCB_t); 1211 1212 offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt; 1213 pdma_addr = phba->slim2p.phys + offset; 1214 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); 1215 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); 1216 1217 /* Always Host Group Pointer is in SLIM */ 1218 mb->un.varCfgPort.hps = 1; 1219 1220 /* If HBA supports SLI=3 ask for it */ 1221 1222 if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) { 1223 if (phba->cfg_enable_bg) 1224 mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */ 1225 mb->un.varCfgPort.cdss = 1; /* Configure Security */ 1226 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ 1227 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */ 1228 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count(); 1229 if (phba->max_vpi && phba->cfg_enable_npiv && 1230 phba->vpd.sli3Feat.cmv) { 1231 mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI; 1232 mb->un.varCfgPort.cmv = 1; 1233 } else 1234 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0; 1235 } else 1236 phba->sli_rev = LPFC_SLI_REV2; 1237 mb->un.varCfgPort.sli_mode = phba->sli_rev; 1238 1239 /* Now setup pcb */ 1240 phba->pcb->type = TYPE_NATIVE_SLI2; 1241 phba->pcb->feature = FEATURE_INITIAL_SLI2; 1242 1243 /* Setup Mailbox pointers */ 1244 phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE; 1245 offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt; 1246 pdma_addr = phba->slim2p.phys + offset; 1247 phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr); 1248 phba->pcb->mbAddrLow = putPaddrLow(pdma_addr); 1249 1250 /* 1251 * Setup Host Group ring pointer. 1252 * 1253 * For efficiency reasons, the ring get/put pointers can be 1254 * placed in adapter memory (SLIM) rather than in host memory. 1255 * This allows firmware to avoid PCI reads/writes when updating 1256 * and checking pointers. 1257 * 1258 * The firmware recognizes the use of SLIM memory by comparing 1259 * the address of the get/put pointers structure with that of 1260 * the SLIM BAR (BAR0). 1261 * 1262 * Caution: be sure to use the PCI config space value of BAR0/BAR1 1263 * (the hardware's view of the base address), not the OS's 1264 * value of pci_resource_start() as the OS value may be a cookie 1265 * for ioremap/iomap. 1266 */ 1267 1268 1269 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low); 1270 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high); 1271 1272 /* 1273 * Set up HGP - Port Memory 1274 * 1275 * The port expects the host get/put pointers to reside in memory 1276 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes) 1277 * area of SLIM. In SLI-2 mode, there's an additional 16 reserved 1278 * words (0x40 bytes). This area is not reserved if HBQs are 1279 * configured in SLI-3. 1280 * 1281 * CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80 1282 * RR0Get 0xc4 0x84 1283 * CR1Put 0xc8 0x88 1284 * RR1Get 0xcc 0x8c 1285 * CR2Put 0xd0 0x90 1286 * RR2Get 0xd4 0x94 1287 * CR3Put 0xd8 0x98 1288 * RR3Get 0xdc 0x9c 1289 * 1290 * Reserved 0xa0-0xbf 1291 * If HBQs configured: 1292 * HBQ 0 Put ptr 0xc0 1293 * HBQ 1 Put ptr 0xc4 1294 * HBQ 2 Put ptr 0xc8 1295 * ...... 1296 * HBQ(M-1)Put Pointer 0xc0+(M-1)*4 1297 * 1298 */ 1299 1300 if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) { 1301 phba->host_gp = &phba->mbox->us.s2.host[0]; 1302 phba->hbq_put = NULL; 1303 offset = (uint8_t *)&phba->mbox->us.s2.host - 1304 (uint8_t *)phba->slim2p.virt; 1305 pdma_addr = phba->slim2p.phys + offset; 1306 phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr); 1307 phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr); 1308 } else { 1309 /* Always Host Group Pointer is in SLIM */ 1310 mb->un.varCfgPort.hps = 1; 1311 1312 if (phba->sli_rev == 3) { 1313 phba->host_gp = &mb_slim->us.s3.host[0]; 1314 phba->hbq_put = &mb_slim->us.s3.hbq_put[0]; 1315 } else { 1316 phba->host_gp = &mb_slim->us.s2.host[0]; 1317 phba->hbq_put = NULL; 1318 } 1319 1320 /* mask off BAR0's flag bits 0 - 3 */ 1321 phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + 1322 (void __iomem *)phba->host_gp - 1323 (void __iomem *)phba->MBslimaddr; 1324 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64) 1325 phba->pcb->hgpAddrHigh = bar_high; 1326 else 1327 phba->pcb->hgpAddrHigh = 0; 1328 /* write HGP data to SLIM at the required longword offset */ 1329 memset(&hgp, 0, sizeof(struct lpfc_hgp)); 1330 1331 for (i = 0; i < phba->sli.num_rings; i++) { 1332 lpfc_memcpy_to_slim(phba->host_gp + i, &hgp, 1333 sizeof(*phba->host_gp)); 1334 } 1335 } 1336 1337 /* Setup Port Group offset */ 1338 if (phba->sli_rev == 3) 1339 pgp_offset = offsetof(struct lpfc_sli2_slim, 1340 mbx.us.s3_pgp.port); 1341 else 1342 pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port); 1343 pdma_addr = phba->slim2p.phys + pgp_offset; 1344 phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr); 1345 phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr); 1346 1347 /* Use callback routine to setp rings in the pcb */ 1348 lpfc_config_pcb_setup(phba); 1349 1350 /* special handling for LC HBAs */ 1351 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 1352 uint32_t hbainit[5]; 1353 1354 lpfc_hba_init(phba, hbainit); 1355 1356 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20); 1357 } 1358 1359 /* Swap PCB if needed */ 1360 lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t)); 1361} 1362 1363/** 1364 * lpfc_kill_board - Prepare a mailbox command for killing board 1365 * @phba: pointer to lpfc hba data structure. 1366 * @pmb: pointer to the driver internal queue element for mailbox command. 1367 * 1368 * The kill board mailbox command is used to tell firmware to perform a 1369 * graceful shutdown of a channel on a specified board to prepare for reset. 1370 * When the kill board mailbox command is received, the ER3 bit is set to 1 1371 * in the Host Status register and the ER Attention bit is set to 1 in the 1372 * Host Attention register of the HBA function that received the kill board 1373 * command. 1374 * 1375 * This routine prepares the mailbox command for killing the board in 1376 * preparation for a graceful shutdown. 1377 **/ 1378void 1379lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 1380{ 1381 MAILBOX_t *mb = &pmb->u.mb; 1382 1383 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 1384 mb->mbxCommand = MBX_KILL_BOARD; 1385 mb->mbxOwner = OWN_HOST; 1386 return; 1387} 1388 1389/** 1390 * lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue 1391 * @phba: pointer to lpfc hba data structure. 1392 * @mbq: pointer to the driver internal queue element for mailbox command. 1393 * 1394 * Driver maintains a internal mailbox command queue implemented as a linked 1395 * list. When a mailbox command is issued, it shall be put into the mailbox 1396 * command queue such that they shall be processed orderly as HBA can process 1397 * one mailbox command at a time. 1398 **/ 1399void 1400lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 1401{ 1402 struct lpfc_sli *psli; 1403 1404 psli = &phba->sli; 1405 1406 list_add_tail(&mbq->list, &psli->mboxq); 1407 1408 psli->mboxq_cnt++; 1409 1410 return; 1411} 1412 1413/** 1414 * lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue 1415 * @phba: pointer to lpfc hba data structure. 1416 * 1417 * Driver maintains a internal mailbox command queue implemented as a linked 1418 * list. When a mailbox command is issued, it shall be put into the mailbox 1419 * command queue such that they shall be processed orderly as HBA can process 1420 * one mailbox command at a time. After HBA finished processing a mailbox 1421 * command, the driver will remove a pending mailbox command from the head of 1422 * the mailbox command queue and send to the HBA for processing. 1423 * 1424 * Return codes 1425 * pointer to the driver internal queue element for mailbox command. 1426 **/ 1427LPFC_MBOXQ_t * 1428lpfc_mbox_get(struct lpfc_hba * phba) 1429{ 1430 LPFC_MBOXQ_t *mbq = NULL; 1431 struct lpfc_sli *psli = &phba->sli; 1432 1433 list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list); 1434 if (mbq) 1435 psli->mboxq_cnt--; 1436 1437 return mbq; 1438} 1439 1440/** 1441 * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list 1442 * @phba: pointer to lpfc hba data structure. 1443 * @mbq: pointer to the driver internal queue element for mailbox command. 1444 * 1445 * This routine put the completed mailbox command into the mailbox command 1446 * complete list. This is the unlocked version of the routine. The mailbox 1447 * complete list is used by the driver worker thread to process mailbox 1448 * complete callback functions outside the driver interrupt handler. 1449 **/ 1450void 1451__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq) 1452{ 1453 list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl); 1454} 1455 1456/** 1457 * lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list 1458 * @phba: pointer to lpfc hba data structure. 1459 * @mbq: pointer to the driver internal queue element for mailbox command. 1460 * 1461 * This routine put the completed mailbox command into the mailbox command 1462 * complete list. This is the locked version of the routine. The mailbox 1463 * complete list is used by the driver worker thread to process mailbox 1464 * complete callback functions outside the driver interrupt handler. 1465 **/ 1466void 1467lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq) 1468{ 1469 unsigned long iflag; 1470 1471 /* This function expects to be called from interrupt context */ 1472 spin_lock_irqsave(&phba->hbalock, iflag); 1473 __lpfc_mbox_cmpl_put(phba, mbq); 1474 spin_unlock_irqrestore(&phba->hbalock, iflag); 1475 return; 1476} 1477 1478/** 1479 * lpfc_mbox_cmd_check - Check the validality of a mailbox command 1480 * @phba: pointer to lpfc hba data structure. 1481 * @mboxq: pointer to the driver internal queue element for mailbox command. 1482 * 1483 * This routine is to check whether a mailbox command is valid to be issued. 1484 * This check will be performed by both the mailbox issue API when a client 1485 * is to issue a mailbox command to the mailbox transport. 1486 * 1487 * Return 0 - pass the check, -ENODEV - fail the check 1488 **/ 1489int 1490lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 1491{ 1492 /* Mailbox command that have a completion handler must also have a 1493 * vport specified. 1494 */ 1495 if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl && 1496 mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) { 1497 if (!mboxq->vport) { 1498 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT, 1499 "1814 Mbox x%x failed, no vport\n", 1500 mboxq->u.mb.mbxCommand); 1501 dump_stack(); 1502 return -ENODEV; 1503 } 1504 } 1505 return 0; 1506} 1507 1508/** 1509 * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command 1510 * @phba: pointer to lpfc hba data structure. 1511 * 1512 * This routine is to check whether the HBA device is ready for posting a 1513 * mailbox command. It is used by the mailbox transport API at the time the 1514 * to post a mailbox command to the device. 1515 * 1516 * Return 0 - pass the check, -ENODEV - fail the check 1517 **/ 1518int 1519lpfc_mbox_dev_check(struct lpfc_hba *phba) 1520{ 1521 /* If the PCI channel is in offline state, do not issue mbox */ 1522 if (unlikely(pci_channel_offline(phba->pcidev))) 1523 return -ENODEV; 1524 1525 /* If the HBA is in error state, do not issue mbox */ 1526 if (phba->link_state == LPFC_HBA_ERROR) 1527 return -ENODEV; 1528 1529 return 0; 1530} 1531 1532/** 1533 * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value 1534 * @phba: pointer to lpfc hba data structure. 1535 * @cmd: mailbox command code. 1536 * 1537 * This routine retrieves the proper timeout value according to the mailbox 1538 * command code. 1539 * 1540 * Return codes 1541 * Timeout value to be used for the given mailbox command 1542 **/ 1543int 1544lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) 1545{ 1546 switch (cmd) { 1547 case MBX_WRITE_NV: /* 0x03 */ 1548 case MBX_UPDATE_CFG: /* 0x1B */ 1549 case MBX_DOWN_LOAD: /* 0x1C */ 1550 case MBX_DEL_LD_ENTRY: /* 0x1D */ 1551 case MBX_LOAD_AREA: /* 0x81 */ 1552 case MBX_WRITE_WWN: /* 0x98 */ 1553 case MBX_LOAD_EXP_ROM: /* 0x9C */ 1554 return LPFC_MBOX_TMO_FLASH_CMD; 1555 case MBX_SLI4_CONFIG: /* 0x9b */ 1556 return LPFC_MBOX_SLI4_CONFIG_TMO; 1557 } 1558 return LPFC_MBOX_TMO; 1559} 1560 1561/** 1562 * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command 1563 * @mbox: pointer to lpfc mbox command. 1564 * @sgentry: sge entry index. 1565 * @phyaddr: physical address for the sge 1566 * @length: Length of the sge. 1567 * 1568 * This routine sets up an entry in the non-embedded mailbox command at the sge 1569 * index location. 1570 **/ 1571void 1572lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry, 1573 dma_addr_t phyaddr, uint32_t length) 1574{ 1575 struct lpfc_mbx_nembed_cmd *nembed_sge; 1576 1577 nembed_sge = (struct lpfc_mbx_nembed_cmd *) 1578 &mbox->u.mqe.un.nembed_cmd; 1579 nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr); 1580 nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr); 1581 nembed_sge->sge[sgentry].length = length; 1582} 1583 1584/** 1585 * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command 1586 * @mbox: pointer to lpfc mbox command. 1587 * @sgentry: sge entry index. 1588 * 1589 * This routine gets an entry from the non-embedded mailbox command at the sge 1590 * index location. 1591 **/ 1592void 1593lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry, 1594 struct lpfc_mbx_sge *sge) 1595{ 1596 struct lpfc_mbx_nembed_cmd *nembed_sge; 1597 1598 nembed_sge = (struct lpfc_mbx_nembed_cmd *) 1599 &mbox->u.mqe.un.nembed_cmd; 1600 sge->pa_lo = nembed_sge->sge[sgentry].pa_lo; 1601 sge->pa_hi = nembed_sge->sge[sgentry].pa_hi; 1602 sge->length = nembed_sge->sge[sgentry].length; 1603} 1604 1605/** 1606 * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command 1607 * @phba: pointer to lpfc hba data structure. 1608 * @mbox: pointer to lpfc mbox command. 1609 * 1610 * This routine frees SLI4 specific mailbox command for sending IOCTL command. 1611 **/ 1612void 1613lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox) 1614{ 1615 struct lpfc_mbx_sli4_config *sli4_cfg; 1616 struct lpfc_mbx_sge sge; 1617 dma_addr_t phyaddr; 1618 uint32_t sgecount, sgentry; 1619 1620 sli4_cfg = &mbox->u.mqe.un.sli4_config; 1621 1622 /* For embedded mbox command, just free the mbox command */ 1623 if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) { 1624 mempool_free(mbox, phba->mbox_mem_pool); 1625 return; 1626 } 1627 1628 /* For non-embedded mbox command, we need to free the pages first */ 1629 sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr); 1630 /* There is nothing we can do if there is no sge address array */ 1631 if (unlikely(!mbox->sge_array)) { 1632 mempool_free(mbox, phba->mbox_mem_pool); 1633 return; 1634 } 1635 /* Each non-embedded DMA memory was allocated in the length of a page */ 1636 for (sgentry = 0; sgentry < sgecount; sgentry++) { 1637 lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge); 1638 phyaddr = getPaddr(sge.pa_hi, sge.pa_lo); 1639 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 1640 mbox->sge_array->addr[sgentry], phyaddr); 1641 } 1642 /* Free the sge address array memory */ 1643 kfree(mbox->sge_array); 1644 /* Finally, free the mailbox command itself */ 1645 mempool_free(mbox, phba->mbox_mem_pool); 1646} 1647 1648/** 1649 * lpfc_sli4_config - Initialize the SLI4 Config Mailbox command 1650 * @phba: pointer to lpfc hba data structure. 1651 * @mbox: pointer to lpfc mbox command. 1652 * @subsystem: The sli4 config sub mailbox subsystem. 1653 * @opcode: The sli4 config sub mailbox command opcode. 1654 * @length: Length of the sli4 config mailbox command. 1655 * 1656 * This routine sets up the header fields of SLI4 specific mailbox command 1657 * for sending IOCTL command. 1658 * 1659 * Return: the actual length of the mbox command allocated (mostly useful 1660 * for none embedded mailbox command). 1661 **/ 1662int 1663lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox, 1664 uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb) 1665{ 1666 struct lpfc_mbx_sli4_config *sli4_config; 1667 union lpfc_sli4_cfg_shdr *cfg_shdr = NULL; 1668 uint32_t alloc_len; 1669 uint32_t resid_len; 1670 uint32_t pagen, pcount; 1671 void *viraddr; 1672 dma_addr_t phyaddr; 1673 1674 /* Set up SLI4 mailbox command header fields */ 1675 memset(mbox, 0, sizeof(*mbox)); 1676 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG); 1677 1678 /* Set up SLI4 ioctl command header fields */ 1679 sli4_config = &mbox->u.mqe.un.sli4_config; 1680 1681 /* Setup for the embedded mbox command */ 1682 if (emb) { 1683 /* Set up main header fields */ 1684 bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1); 1685 sli4_config->header.cfg_mhdr.payload_length = 1686 LPFC_MBX_CMD_HDR_LENGTH + length; 1687 /* Set up sub-header fields following main header */ 1688 bf_set(lpfc_mbox_hdr_opcode, 1689 &sli4_config->header.cfg_shdr.request, opcode); 1690 bf_set(lpfc_mbox_hdr_subsystem, 1691 &sli4_config->header.cfg_shdr.request, subsystem); 1692 sli4_config->header.cfg_shdr.request.request_length = length; 1693 return length; 1694 } 1695 1696 /* Setup for the none-embedded mbox command */ 1697 pcount = (PAGE_ALIGN(length))/SLI4_PAGE_SIZE; 1698 pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ? 1699 LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount; 1700 /* Allocate record for keeping SGE virtual addresses */ 1701 mbox->sge_array = kmalloc(sizeof(struct lpfc_mbx_nembed_sge_virt), 1702 GFP_KERNEL); 1703 if (!mbox->sge_array) { 1704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1705 "2527 Failed to allocate non-embedded SGE " 1706 "array.\n"); 1707 return 0; 1708 } 1709 for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) { 1710 /* The DMA memory is always allocated in the length of a 1711 * page even though the last SGE might not fill up to a 1712 * page, this is used as a priori size of SLI4_PAGE_SIZE for 1713 * the later DMA memory free. 1714 */ 1715 viraddr = dma_alloc_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 1716 &phyaddr, GFP_KERNEL); 1717 /* In case of malloc fails, proceed with whatever we have */ 1718 if (!viraddr) 1719 break; 1720 memset(viraddr, 0, SLI4_PAGE_SIZE); 1721 mbox->sge_array->addr[pagen] = viraddr; 1722 /* Keep the first page for later sub-header construction */ 1723 if (pagen == 0) 1724 cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr; 1725 resid_len = length - alloc_len; 1726 if (resid_len > SLI4_PAGE_SIZE) { 1727 lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr, 1728 SLI4_PAGE_SIZE); 1729 alloc_len += SLI4_PAGE_SIZE; 1730 } else { 1731 lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr, 1732 resid_len); 1733 alloc_len = length; 1734 } 1735 } 1736 1737 /* Set up main header fields in mailbox command */ 1738 sli4_config->header.cfg_mhdr.payload_length = alloc_len; 1739 bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen); 1740 1741 /* Set up sub-header fields into the first page */ 1742 if (pagen > 0) { 1743 bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode); 1744 bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem); 1745 cfg_shdr->request.request_length = 1746 alloc_len - sizeof(union lpfc_sli4_cfg_shdr); 1747 } 1748 /* The sub-header is in DMA memory, which needs endian converstion */ 1749 if (cfg_shdr) 1750 lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr, 1751 sizeof(union lpfc_sli4_cfg_shdr)); 1752 1753 return alloc_len; 1754} 1755 1756/** 1757 * lpfc_sli4_mbox_opcode_get - Get the opcode from a sli4 mailbox command 1758 * @phba: pointer to lpfc hba data structure. 1759 * @mbox: pointer to lpfc mbox command. 1760 * 1761 * This routine gets the opcode from a SLI4 specific mailbox command for 1762 * sending IOCTL command. If the mailbox command is not MBX_SLI4_CONFIG 1763 * (0x9B) or if the IOCTL sub-header is not present, opcode 0x0 shall be 1764 * returned. 1765 **/ 1766uint8_t 1767lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox) 1768{ 1769 struct lpfc_mbx_sli4_config *sli4_cfg; 1770 union lpfc_sli4_cfg_shdr *cfg_shdr; 1771 1772 if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG) 1773 return 0; 1774 sli4_cfg = &mbox->u.mqe.un.sli4_config; 1775 1776 /* For embedded mbox command, get opcode from embedded sub-header*/ 1777 if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) { 1778 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr; 1779 return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request); 1780 } 1781 1782 /* For non-embedded mbox command, get opcode from first dma page */ 1783 if (unlikely(!mbox->sge_array)) 1784 return 0; 1785 cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0]; 1786 return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request); 1787} 1788 1789/** 1790 * lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd 1791 * @phba: pointer to lpfc hba data structure. 1792 * @fcf_index: index to fcf table. 1793 * 1794 * This routine routine allocates and constructs non-embedded mailbox command 1795 * for reading a FCF table entry refered by @fcf_index. 1796 * 1797 * Return: pointer to the mailbox command constructed if successful, otherwise 1798 * NULL. 1799 **/ 1800int 1801lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba, 1802 struct lpfcMboxq *mboxq, 1803 uint16_t fcf_index) 1804{ 1805 void *virt_addr; 1806 dma_addr_t phys_addr; 1807 uint8_t *bytep; 1808 struct lpfc_mbx_sge sge; 1809 uint32_t alloc_len, req_len; 1810 struct lpfc_mbx_read_fcf_tbl *read_fcf; 1811 1812 if (!mboxq) 1813 return -ENOMEM; 1814 1815 req_len = sizeof(struct fcf_record) + 1816 sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t); 1817 1818 /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */ 1819 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 1820 LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len, 1821 LPFC_SLI4_MBX_NEMBED); 1822 1823 if (alloc_len < req_len) { 1824 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1825 "0291 Allocated DMA memory size (x%x) is " 1826 "less than the requested DMA memory " 1827 "size (x%x)\n", alloc_len, req_len); 1828 return -ENOMEM; 1829 } 1830 1831 /* Get the first SGE entry from the non-embedded DMA memory. This 1832 * routine only uses a single SGE. 1833 */ 1834 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); 1835 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); 1836 virt_addr = mboxq->sge_array->addr[0]; 1837 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; 1838 1839 /* Set up command fields */ 1840 bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index); 1841 /* Perform necessary endian conversion */ 1842 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); 1843 lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t)); 1844 1845 return 0; 1846} 1847 1848/** 1849 * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox 1850 * @mboxq: pointer to lpfc mbox command. 1851 * 1852 * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES 1853 * mailbox command. 1854 **/ 1855void 1856lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq) 1857{ 1858 /* Set up SLI4 mailbox command header fields */ 1859 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 1860 bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS); 1861 1862 /* Set up host requested features. */ 1863 bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1); 1864 1865 /* Enable DIF (block guard) only if configured to do so. */ 1866 if (phba->cfg_enable_bg) 1867 bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1); 1868 1869 /* Enable NPIV only if configured to do so. */ 1870 if (phba->max_vpi && phba->cfg_enable_npiv) 1871 bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1); 1872 1873 return; 1874} 1875 1876/** 1877 * lpfc_init_vfi - Initialize the INIT_VFI mailbox command 1878 * @mbox: pointer to lpfc mbox command to initialize. 1879 * @vport: Vport associated with the VF. 1880 * 1881 * This routine initializes @mbox to all zeros and then fills in the mailbox 1882 * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI 1883 * in the context of an FCF. The driver issues this command to setup a VFI 1884 * before issuing a FLOGI to login to the VSAN. The driver should also issue a 1885 * REG_VFI after a successful VSAN login. 1886 **/ 1887void 1888lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport) 1889{ 1890 struct lpfc_mbx_init_vfi *init_vfi; 1891 1892 memset(mbox, 0, sizeof(*mbox)); 1893 init_vfi = &mbox->u.mqe.un.init_vfi; 1894 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI); 1895 bf_set(lpfc_init_vfi_vr, init_vfi, 1); 1896 bf_set(lpfc_init_vfi_vt, init_vfi, 1); 1897 bf_set(lpfc_init_vfi_vfi, init_vfi, vport->vfi + vport->phba->vfi_base); 1898 bf_set(lpfc_init_vfi_fcfi, init_vfi, vport->phba->fcf.fcfi); 1899} 1900 1901/** 1902 * lpfc_reg_vfi - Initialize the REG_VFI mailbox command 1903 * @mbox: pointer to lpfc mbox command to initialize. 1904 * @vport: vport associated with the VF. 1905 * @phys: BDE DMA bus address used to send the service parameters to the HBA. 1906 * 1907 * This routine initializes @mbox to all zeros and then fills in the mailbox 1908 * fields from @vport, and uses @buf as a DMAable buffer to send the vport's 1909 * fc service parameters to the HBA for this VFI. REG_VFI configures virtual 1910 * fabrics identified by VFI in the context of an FCF. 1911 **/ 1912void 1913lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys) 1914{ 1915 struct lpfc_mbx_reg_vfi *reg_vfi; 1916 1917 memset(mbox, 0, sizeof(*mbox)); 1918 reg_vfi = &mbox->u.mqe.un.reg_vfi; 1919 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI); 1920 bf_set(lpfc_reg_vfi_vp, reg_vfi, 1); 1921 bf_set(lpfc_reg_vfi_vfi, reg_vfi, vport->vfi + vport->phba->vfi_base); 1922 bf_set(lpfc_reg_vfi_fcfi, reg_vfi, vport->phba->fcf.fcfi); 1923 bf_set(lpfc_reg_vfi_vpi, reg_vfi, vport->vpi + vport->phba->vpi_base); 1924 memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name)); 1925 reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]); 1926 reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]); 1927 reg_vfi->e_d_tov = vport->phba->fc_edtov; 1928 reg_vfi->r_a_tov = vport->phba->fc_ratov; 1929 reg_vfi->bde.addrHigh = putPaddrHigh(phys); 1930 reg_vfi->bde.addrLow = putPaddrLow(phys); 1931 reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam); 1932 reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; 1933 bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID); 1934} 1935 1936/** 1937 * lpfc_init_vpi - Initialize the INIT_VPI mailbox command 1938 * @phba: pointer to the hba structure to init the VPI for. 1939 * @mbox: pointer to lpfc mbox command to initialize. 1940 * @vpi: VPI to be initialized. 1941 * 1942 * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the 1943 * command to activate a virtual N_Port. The HBA assigns a MAC address to use 1944 * with the virtual N Port. The SLI Host issues this command before issuing a 1945 * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a 1946 * successful virtual NPort login. 1947 **/ 1948void 1949lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi) 1950{ 1951 memset(mbox, 0, sizeof(*mbox)); 1952 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI); 1953 bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi, 1954 vpi + phba->vpi_base); 1955 bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi, 1956 phba->pport->vfi + phba->vfi_base); 1957} 1958 1959/** 1960 * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command 1961 * @mbox: pointer to lpfc mbox command to initialize. 1962 * @vport: vport associated with the VF. 1963 * 1964 * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric 1965 * (logical NPort) into the inactive state. The SLI Host must have logged out 1966 * and unregistered all remote N_Ports to abort any activity on the virtual 1967 * fabric. The SLI Port posts the mailbox response after marking the virtual 1968 * fabric inactive. 1969 **/ 1970void 1971lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport) 1972{ 1973 memset(mbox, 0, sizeof(*mbox)); 1974 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI); 1975 bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi, 1976 vport->vfi + vport->phba->vfi_base); 1977} 1978 1979/** 1980 * lpfc_dump_fcoe_param - Dump config region 23 to get FCoe parameters. 1981 * @phba: pointer to the hba structure containing. 1982 * @mbox: pointer to lpfc mbox command to initialize. 1983 * 1984 * This function create a SLI4 dump mailbox command to dump FCoE 1985 * parameters stored in region 23. 1986 **/ 1987int 1988lpfc_dump_fcoe_param(struct lpfc_hba *phba, 1989 struct lpfcMboxq *mbox) 1990{ 1991 struct lpfc_dmabuf *mp = NULL; 1992 MAILBOX_t *mb; 1993 1994 memset(mbox, 0, sizeof(*mbox)); 1995 mb = &mbox->u.mb; 1996 1997 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1998 if (mp) 1999 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2000 2001 if (!mp || !mp->virt) { 2002 kfree(mp); 2003 /* dump_fcoe_param failed to allocate memory */ 2004 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 2005 "2569 lpfc_dump_fcoe_param: memory" 2006 " allocation failed\n"); 2007 return 1; 2008 } 2009 2010 memset(mp->virt, 0, LPFC_BPL_SIZE); 2011 INIT_LIST_HEAD(&mp->list); 2012 2013 /* save address for completion */ 2014 mbox->context1 = (uint8_t *) mp; 2015 2016 mb->mbxCommand = MBX_DUMP_MEMORY; 2017 mb->un.varDmp.type = DMP_NV_PARAMS; 2018 mb->un.varDmp.region_id = DMP_REGION_23; 2019 mb->un.varDmp.sli4_length = DMP_RGN23_SIZE; 2020 mb->un.varWords[3] = putPaddrLow(mp->phys); 2021 mb->un.varWords[4] = putPaddrHigh(mp->phys); 2022 return 0; 2023} 2024 2025/** 2026 * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command 2027 * @phba: pointer to the hba structure containing the FCF index and RQ ID. 2028 * @mbox: pointer to lpfc mbox command to initialize. 2029 * 2030 * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The 2031 * SLI Host uses the command to activate an FCF after it has acquired FCF 2032 * information via a READ_FCF mailbox command. This mailbox command also is used 2033 * to indicate where received unsolicited frames from this FCF will be sent. By 2034 * default this routine will set up the FCF to forward all unsolicited frames 2035 * the the RQ ID passed in the @phba. This can be overridden by the caller for 2036 * more complicated setups. 2037 **/ 2038void 2039lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox) 2040{ 2041 struct lpfc_mbx_reg_fcfi *reg_fcfi; 2042 2043 memset(mbox, 0, sizeof(*mbox)); 2044 reg_fcfi = &mbox->u.mqe.un.reg_fcfi; 2045 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI); 2046 bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi, phba->sli4_hba.hdr_rq->queue_id); 2047 bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID); 2048 bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID); 2049 bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID); 2050 bf_set(lpfc_reg_fcfi_info_index, reg_fcfi, 2051 phba->fcf.current_rec.fcf_indx); 2052 /* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */ 2053 bf_set(lpfc_reg_fcfi_mam, reg_fcfi, (~phba->fcf.addr_mode) & 0x3); 2054 if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) { 2055 bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1); 2056 bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi, 2057 phba->fcf.current_rec.vlan_id); 2058 } 2059} 2060 2061/** 2062 * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command 2063 * @mbox: pointer to lpfc mbox command to initialize. 2064 * @fcfi: FCFI to be unregistered. 2065 * 2066 * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). 2067 * The SLI Host uses the command to inactivate an FCFI. 2068 **/ 2069void 2070lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi) 2071{ 2072 memset(mbox, 0, sizeof(*mbox)); 2073 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI); 2074 bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi); 2075} 2076 2077/** 2078 * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command 2079 * @mbox: pointer to lpfc mbox command to initialize. 2080 * @ndlp: The nodelist structure that describes the RPI to resume. 2081 * 2082 * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a 2083 * link event. 2084 **/ 2085void 2086lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp) 2087{ 2088 struct lpfc_mbx_resume_rpi *resume_rpi; 2089 2090 memset(mbox, 0, sizeof(*mbox)); 2091 resume_rpi = &mbox->u.mqe.un.resume_rpi; 2092 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI); 2093 bf_set(lpfc_resume_rpi_index, resume_rpi, ndlp->nlp_rpi); 2094 bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI); 2095 resume_rpi->event_tag = ndlp->phba->fc_eventTag; 2096} 2097 2098/** 2099 * lpfc_supported_pages - Initialize the PORT_CAPABILITIES supported pages 2100 * mailbox command. 2101 * @mbox: pointer to lpfc mbox command to initialize. 2102 * 2103 * The PORT_CAPABILITIES supported pages mailbox command is issued to 2104 * retrieve the particular feature pages supported by the port. 2105 **/ 2106void 2107lpfc_supported_pages(struct lpfcMboxq *mbox) 2108{ 2109 struct lpfc_mbx_supp_pages *supp_pages; 2110 2111 memset(mbox, 0, sizeof(*mbox)); 2112 supp_pages = &mbox->u.mqe.un.supp_pages; 2113 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES); 2114 bf_set(cpn, supp_pages, LPFC_SUPP_PAGES); 2115} 2116 2117/** 2118 * lpfc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params 2119 * mailbox command. 2120 * @mbox: pointer to lpfc mbox command to initialize. 2121 * 2122 * The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to 2123 * retrieve the particular SLI4 features supported by the port. 2124 **/ 2125void 2126lpfc_sli4_params(struct lpfcMboxq *mbox) 2127{ 2128 struct lpfc_mbx_sli4_params *sli4_params; 2129 2130 memset(mbox, 0, sizeof(*mbox)); 2131 sli4_params = &mbox->u.mqe.un.sli4_params; 2132 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES); 2133 bf_set(cpn, sli4_params, LPFC_SLI4_PARAMETERS); 2134} 2135