drivers/scsi/bfa/bfa

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This source file includes following definitions.
bfa_port_stats_swap
bfa_port_enable_isr
bfa_port_disable_isr
bfa_port_get_stats_isr
bfa_port_clear_stats_isr
bfa_port_isr
bfa_port_meminfo
bfa_port_mem_claim
bfa_port_enable
bfa_port_disable
bfa_port_get_stats
bfa_port_clear_stats
bfa_port_notify
bfa_port_attach
bfa_port_set_dportenabled
bfa_cee_get_attr_isr
bfa_cee_get_stats_isr
bfa_cee_reset_stats_isr
bfa_cee_meminfo
bfa_cee_mem_claim
bfa_cee_get_attr
bfa_cee_get_stats
bfa_cee_reset_stats
bfa_cee_isr
bfa_cee_notify
bfa_cee_attach
   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
   4  * Copyright (c) 2014- QLogic Corporation.
   5  * All rights reserved
   6  * www.qlogic.com
   7  *
   8  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
   9  */
  10 
  11 #include "bfad_drv.h"
  12 #include "bfa_defs_svc.h"
  13 #include "bfa_port.h"
  14 #include "bfi.h"
  15 #include "bfa_ioc.h"
  16 
  17 
  18 BFA_TRC_FILE(CNA, PORT);
  19 
  20 static void
  21 bfa_port_stats_swap(struct bfa_port_s *port, union bfa_port_stats_u *stats)
  22 {
  23         u32    *dip = (u32 *) stats;
  24         __be32    t0, t1;
  25         int         i;
  26 
  27         for (i = 0; i < sizeof(union bfa_port_stats_u)/sizeof(u32);
  28                 i += 2) {
  29                 t0 = dip[i];
  30                 t1 = dip[i + 1];
  31 #ifdef __BIG_ENDIAN
  32                 dip[i] = be32_to_cpu(t0);
  33                 dip[i + 1] = be32_to_cpu(t1);
  34 #else
  35                 dip[i] = be32_to_cpu(t1);
  36                 dip[i + 1] = be32_to_cpu(t0);
  37 #endif
  38         }
  39 }
  40 
  41 /*
  42  * bfa_port_enable_isr()
  43  *
  44  *
  45  * @param[in] port - Pointer to the port module
  46  *            status - Return status from the f/w
  47  *
  48  * @return void
  49  */
  50 static void
  51 bfa_port_enable_isr(struct bfa_port_s *port, bfa_status_t status)
  52 {
  53         bfa_trc(port, status);
  54         port->endis_pending = BFA_FALSE;
  55         port->endis_cbfn(port->endis_cbarg, status);
  56 }
  57 
  58 /*
  59  * bfa_port_disable_isr()
  60  *
  61  *
  62  * @param[in] port - Pointer to the port module
  63  *            status - Return status from the f/w
  64  *
  65  * @return void
  66  */
  67 static void
  68 bfa_port_disable_isr(struct bfa_port_s *port, bfa_status_t status)
  69 {
  70         bfa_trc(port, status);
  71         port->endis_pending = BFA_FALSE;
  72         port->endis_cbfn(port->endis_cbarg, status);
  73 }
  74 
  75 /*
  76  * bfa_port_get_stats_isr()
  77  *
  78  *
  79  * @param[in] port - Pointer to the Port module
  80  *            status - Return status from the f/w
  81  *
  82  * @return void
  83  */
  84 static void
  85 bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status)
  86 {
  87         port->stats_status = status;
  88         port->stats_busy = BFA_FALSE;
  89 
  90         if (status == BFA_STATUS_OK) {
  91                 memcpy(port->stats, port->stats_dma.kva,
  92                        sizeof(union bfa_port_stats_u));
  93                 bfa_port_stats_swap(port, port->stats);
  94 
  95                 port->stats->fc.secs_reset = ktime_get_seconds() - port->stats_reset_time;
  96         }
  97 
  98         if (port->stats_cbfn) {
  99                 port->stats_cbfn(port->stats_cbarg, status);
 100                 port->stats_cbfn = NULL;
 101         }
 102 }
 103 
 104 /*
 105  * bfa_port_clear_stats_isr()
 106  *
 107  *
 108  * @param[in] port - Pointer to the Port module
 109  *            status - Return status from the f/w
 110  *
 111  * @return void
 112  */
 113 static void
 114 bfa_port_clear_stats_isr(struct bfa_port_s *port, bfa_status_t status)
 115 {
 116         port->stats_status = status;
 117         port->stats_busy   = BFA_FALSE;
 118 
 119         /*
 120         * re-initialize time stamp for stats reset
 121         */
 122         port->stats_reset_time = ktime_get_seconds();
 123 
 124         if (port->stats_cbfn) {
 125                 port->stats_cbfn(port->stats_cbarg, status);
 126                 port->stats_cbfn = NULL;
 127         }
 128 }
 129 
 130 /*
 131  * bfa_port_isr()
 132  *
 133  *
 134  * @param[in] Pointer to the Port module data structure.
 135  *
 136  * @return void
 137  */
 138 static void
 139 bfa_port_isr(void *cbarg, struct bfi_mbmsg_s *m)
 140 {
 141         struct bfa_port_s *port = (struct bfa_port_s *) cbarg;
 142         union bfi_port_i2h_msg_u *i2hmsg;
 143 
 144         i2hmsg = (union bfi_port_i2h_msg_u *) m;
 145         bfa_trc(port, m->mh.msg_id);
 146 
 147         switch (m->mh.msg_id) {
 148         case BFI_PORT_I2H_ENABLE_RSP:
 149                 if (port->endis_pending == BFA_FALSE)
 150                         break;
 151                 bfa_port_enable_isr(port, i2hmsg->enable_rsp.status);
 152                 break;
 153 
 154         case BFI_PORT_I2H_DISABLE_RSP:
 155                 if (port->endis_pending == BFA_FALSE)
 156                         break;
 157                 bfa_port_disable_isr(port, i2hmsg->disable_rsp.status);
 158                 break;
 159 
 160         case BFI_PORT_I2H_GET_STATS_RSP:
 161                 /* Stats busy flag is still set? (may be cmd timed out) */
 162                 if (port->stats_busy == BFA_FALSE)
 163                         break;
 164                 bfa_port_get_stats_isr(port, i2hmsg->getstats_rsp.status);
 165                 break;
 166 
 167         case BFI_PORT_I2H_CLEAR_STATS_RSP:
 168                 if (port->stats_busy == BFA_FALSE)
 169                         break;
 170                 bfa_port_clear_stats_isr(port, i2hmsg->clearstats_rsp.status);
 171                 break;
 172 
 173         default:
 174                 WARN_ON(1);
 175         }
 176 }
 177 
 178 /*
 179  * bfa_port_meminfo()
 180  *
 181  *
 182  * @param[in] void
 183  *
 184  * @return Size of DMA region
 185  */
 186 u32
 187 bfa_port_meminfo(void)
 188 {
 189         return BFA_ROUNDUP(sizeof(union bfa_port_stats_u), BFA_DMA_ALIGN_SZ);
 190 }
 191 
 192 /*
 193  * bfa_port_mem_claim()
 194  *
 195  *
 196  * @param[in] port Port module pointer
 197  *            dma_kva Kernel Virtual Address of Port DMA Memory
 198  *            dma_pa  Physical Address of Port DMA Memory
 199  *
 200  * @return void
 201  */
 202 void
 203 bfa_port_mem_claim(struct bfa_port_s *port, u8 *dma_kva, u64 dma_pa)
 204 {
 205         port->stats_dma.kva = dma_kva;
 206         port->stats_dma.pa  = dma_pa;
 207 }
 208 
 209 /*
 210  * bfa_port_enable()
 211  *
 212  *   Send the Port enable request to the f/w
 213  *
 214  * @param[in] Pointer to the Port module data structure.
 215  *
 216  * @return Status
 217  */
 218 bfa_status_t
 219 bfa_port_enable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn,
 220                  void *cbarg)
 221 {
 222         struct bfi_port_generic_req_s *m;
 223 
 224         /* If port is PBC disabled, return error */
 225         if (port->pbc_disabled) {
 226                 bfa_trc(port, BFA_STATUS_PBC);
 227                 return BFA_STATUS_PBC;
 228         }
 229 
 230         if (bfa_ioc_is_disabled(port->ioc)) {
 231                 bfa_trc(port, BFA_STATUS_IOC_DISABLED);
 232                 return BFA_STATUS_IOC_DISABLED;
 233         }
 234 
 235         if (!bfa_ioc_is_operational(port->ioc)) {
 236                 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
 237                 return BFA_STATUS_IOC_FAILURE;
 238         }
 239 
 240         /* if port is d-port enabled, return error */
 241         if (port->dport_enabled) {
 242                 bfa_trc(port, BFA_STATUS_DPORT_ERR);
 243                 return BFA_STATUS_DPORT_ERR;
 244         }
 245 
 246         if (port->endis_pending) {
 247                 bfa_trc(port, BFA_STATUS_DEVBUSY);
 248                 return BFA_STATUS_DEVBUSY;
 249         }
 250 
 251         m = (struct bfi_port_generic_req_s *) port->endis_mb.msg;
 252 
 253         port->msgtag++;
 254         port->endis_cbfn    = cbfn;
 255         port->endis_cbarg   = cbarg;
 256         port->endis_pending = BFA_TRUE;
 257 
 258         bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_ENABLE_REQ,
 259                     bfa_ioc_portid(port->ioc));
 260         bfa_ioc_mbox_queue(port->ioc, &port->endis_mb);
 261 
 262         return BFA_STATUS_OK;
 263 }
 264 
 265 /*
 266  * bfa_port_disable()
 267  *
 268  *   Send the Port disable request to the f/w
 269  *
 270  * @param[in] Pointer to the Port module data structure.
 271  *
 272  * @return Status
 273  */
 274 bfa_status_t
 275 bfa_port_disable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn,
 276                   void *cbarg)
 277 {
 278         struct bfi_port_generic_req_s *m;
 279 
 280         /* If port is PBC disabled, return error */
 281         if (port->pbc_disabled) {
 282                 bfa_trc(port, BFA_STATUS_PBC);
 283                 return BFA_STATUS_PBC;
 284         }
 285 
 286         if (bfa_ioc_is_disabled(port->ioc)) {
 287                 bfa_trc(port, BFA_STATUS_IOC_DISABLED);
 288                 return BFA_STATUS_IOC_DISABLED;
 289         }
 290 
 291         if (!bfa_ioc_is_operational(port->ioc)) {
 292                 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
 293                 return BFA_STATUS_IOC_FAILURE;
 294         }
 295 
 296         /* if port is d-port enabled, return error */
 297         if (port->dport_enabled) {
 298                 bfa_trc(port, BFA_STATUS_DPORT_ERR);
 299                 return BFA_STATUS_DPORT_ERR;
 300         }
 301 
 302         if (port->endis_pending) {
 303                 bfa_trc(port, BFA_STATUS_DEVBUSY);
 304                 return BFA_STATUS_DEVBUSY;
 305         }
 306 
 307         m = (struct bfi_port_generic_req_s *) port->endis_mb.msg;
 308 
 309         port->msgtag++;
 310         port->endis_cbfn    = cbfn;
 311         port->endis_cbarg   = cbarg;
 312         port->endis_pending = BFA_TRUE;
 313 
 314         bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_DISABLE_REQ,
 315                     bfa_ioc_portid(port->ioc));
 316         bfa_ioc_mbox_queue(port->ioc, &port->endis_mb);
 317 
 318         return BFA_STATUS_OK;
 319 }
 320 
 321 /*
 322  * bfa_port_get_stats()
 323  *
 324  *   Send the request to the f/w to fetch Port statistics.
 325  *
 326  * @param[in] Pointer to the Port module data structure.
 327  *
 328  * @return Status
 329  */
 330 bfa_status_t
 331 bfa_port_get_stats(struct bfa_port_s *port, union bfa_port_stats_u *stats,
 332                     bfa_port_stats_cbfn_t cbfn, void *cbarg)
 333 {
 334         struct bfi_port_get_stats_req_s *m;
 335 
 336         if (!bfa_ioc_is_operational(port->ioc)) {
 337                 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
 338                 return BFA_STATUS_IOC_FAILURE;
 339         }
 340 
 341         if (port->stats_busy) {
 342                 bfa_trc(port, BFA_STATUS_DEVBUSY);
 343                 return BFA_STATUS_DEVBUSY;
 344         }
 345 
 346         m = (struct bfi_port_get_stats_req_s *) port->stats_mb.msg;
 347 
 348         port->stats       = stats;
 349         port->stats_cbfn  = cbfn;
 350         port->stats_cbarg = cbarg;
 351         port->stats_busy  = BFA_TRUE;
 352         bfa_dma_be_addr_set(m->dma_addr, port->stats_dma.pa);
 353 
 354         bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_GET_STATS_REQ,
 355                     bfa_ioc_portid(port->ioc));
 356         bfa_ioc_mbox_queue(port->ioc, &port->stats_mb);
 357 
 358         return BFA_STATUS_OK;
 359 }
 360 
 361 /*
 362  * bfa_port_clear_stats()
 363  *
 364  *
 365  * @param[in] Pointer to the Port module data structure.
 366  *
 367  * @return Status
 368  */
 369 bfa_status_t
 370 bfa_port_clear_stats(struct bfa_port_s *port, bfa_port_stats_cbfn_t cbfn,
 371                       void *cbarg)
 372 {
 373         struct bfi_port_generic_req_s *m;
 374 
 375         if (!bfa_ioc_is_operational(port->ioc)) {
 376                 bfa_trc(port, BFA_STATUS_IOC_FAILURE);
 377                 return BFA_STATUS_IOC_FAILURE;
 378         }
 379 
 380         if (port->stats_busy) {
 381                 bfa_trc(port, BFA_STATUS_DEVBUSY);
 382                 return BFA_STATUS_DEVBUSY;
 383         }
 384 
 385         m = (struct bfi_port_generic_req_s *) port->stats_mb.msg;
 386 
 387         port->stats_cbfn  = cbfn;
 388         port->stats_cbarg = cbarg;
 389         port->stats_busy  = BFA_TRUE;
 390 
 391         bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_CLEAR_STATS_REQ,
 392                     bfa_ioc_portid(port->ioc));
 393         bfa_ioc_mbox_queue(port->ioc, &port->stats_mb);
 394 
 395         return BFA_STATUS_OK;
 396 }
 397 
 398 /*
 399  * bfa_port_notify()
 400  *
 401  * Port module IOC event handler
 402  *
 403  * @param[in] Pointer to the Port module data structure.
 404  * @param[in] IOC event structure
 405  *
 406  * @return void
 407  */
 408 void
 409 bfa_port_notify(void *arg, enum bfa_ioc_event_e event)
 410 {
 411         struct bfa_port_s *port = (struct bfa_port_s *) arg;
 412 
 413         switch (event) {
 414         case BFA_IOC_E_DISABLED:
 415         case BFA_IOC_E_FAILED:
 416                 /* Fail any pending get_stats/clear_stats requests */
 417                 if (port->stats_busy) {
 418                         if (port->stats_cbfn)
 419                                 port->stats_cbfn(port->stats_cbarg,
 420                                                 BFA_STATUS_FAILED);
 421                         port->stats_cbfn = NULL;
 422                         port->stats_busy = BFA_FALSE;
 423                 }
 424 
 425                 /* Clear any enable/disable is pending */
 426                 if (port->endis_pending) {
 427                         if (port->endis_cbfn)
 428                                 port->endis_cbfn(port->endis_cbarg,
 429                                                 BFA_STATUS_FAILED);
 430                         port->endis_cbfn = NULL;
 431                         port->endis_pending = BFA_FALSE;
 432                 }
 433 
 434                 /* clear D-port mode */
 435                 if (port->dport_enabled)
 436                         bfa_port_set_dportenabled(port, BFA_FALSE);
 437                 break;
 438         default:
 439                 break;
 440         }
 441 }
 442 
 443 /*
 444  * bfa_port_attach()
 445  *
 446  *
 447  * @param[in] port - Pointer to the Port module data structure
 448  *            ioc  - Pointer to the ioc module data structure
 449  *            dev  - Pointer to the device driver module data structure
 450  *                   The device driver specific mbox ISR functions have
 451  *                   this pointer as one of the parameters.
 452  *            trcmod -
 453  *
 454  * @return void
 455  */
 456 void
 457 bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc,
 458                  void *dev, struct bfa_trc_mod_s *trcmod)
 459 {
 460         WARN_ON(!port);
 461 
 462         port->dev    = dev;
 463         port->ioc    = ioc;
 464         port->trcmod = trcmod;
 465 
 466         port->stats_busy = BFA_FALSE;
 467         port->endis_pending = BFA_FALSE;
 468         port->stats_cbfn = NULL;
 469         port->endis_cbfn = NULL;
 470         port->pbc_disabled = BFA_FALSE;
 471         port->dport_enabled = BFA_FALSE;
 472 
 473         bfa_ioc_mbox_regisr(port->ioc, BFI_MC_PORT, bfa_port_isr, port);
 474         bfa_q_qe_init(&port->ioc_notify);
 475         bfa_ioc_notify_init(&port->ioc_notify, bfa_port_notify, port);
 476         list_add_tail(&port->ioc_notify.qe, &port->ioc->notify_q);
 477 
 478         /*
 479          * initialize time stamp for stats reset
 480          */
 481         port->stats_reset_time = ktime_get_seconds();
 482 
 483         bfa_trc(port, 0);
 484 }
 485 
 486 /*
 487  * bfa_port_set_dportenabled();
 488  *
 489  * Port module- set pbc disabled flag
 490  *
 491  * @param[in] port - Pointer to the Port module data structure
 492  *
 493  * @return void
 494  */
 495 void
 496 bfa_port_set_dportenabled(struct bfa_port_s *port, bfa_boolean_t enabled)
 497 {
 498         port->dport_enabled = enabled;
 499 }
 500 
 501 /*
 502  *      CEE module specific definitions
 503  */
 504 
 505 /*
 506  * bfa_cee_get_attr_isr()
 507  *
 508  * @brief CEE ISR for get-attributes responses from f/w
 509  *
 510  * @param[in] cee - Pointer to the CEE module
 511  *                  status - Return status from the f/w
 512  *
 513  * @return void
 514  */
 515 static void
 516 bfa_cee_get_attr_isr(struct bfa_cee_s *cee, bfa_status_t status)
 517 {
 518         struct bfa_cee_lldp_cfg_s *lldp_cfg = &cee->attr->lldp_remote;
 519 
 520         cee->get_attr_status = status;
 521         bfa_trc(cee, 0);
 522         if (status == BFA_STATUS_OK) {
 523                 bfa_trc(cee, 0);
 524                 memcpy(cee->attr, cee->attr_dma.kva,
 525                         sizeof(struct bfa_cee_attr_s));
 526                 lldp_cfg->time_to_live = be16_to_cpu(lldp_cfg->time_to_live);
 527                 lldp_cfg->enabled_system_cap =
 528                                 be16_to_cpu(lldp_cfg->enabled_system_cap);
 529         }
 530         cee->get_attr_pending = BFA_FALSE;
 531         if (cee->cbfn.get_attr_cbfn) {
 532                 bfa_trc(cee, 0);
 533                 cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, status);
 534         }
 535 }
 536 
 537 /*
 538  * bfa_cee_get_stats_isr()
 539  *
 540  * @brief CEE ISR for get-stats responses from f/w
 541  *
 542  * @param[in] cee - Pointer to the CEE module
 543  *            status - Return status from the f/w
 544  *
 545  * @return void
 546  */
 547 static void
 548 bfa_cee_get_stats_isr(struct bfa_cee_s *cee, bfa_status_t status)
 549 {
 550         u32 *buffer;
 551         int i;
 552 
 553         cee->get_stats_status = status;
 554         bfa_trc(cee, 0);
 555         if (status == BFA_STATUS_OK) {
 556                 bfa_trc(cee, 0);
 557                 memcpy(cee->stats, cee->stats_dma.kva,
 558                         sizeof(struct bfa_cee_stats_s));
 559                 /* swap the cee stats */
 560                 buffer = (u32 *)cee->stats;
 561                 for (i = 0; i < (sizeof(struct bfa_cee_stats_s) /
 562                                  sizeof(u32)); i++)
 563                         buffer[i] = cpu_to_be32(buffer[i]);
 564         }
 565         cee->get_stats_pending = BFA_FALSE;
 566         bfa_trc(cee, 0);
 567         if (cee->cbfn.get_stats_cbfn) {
 568                 bfa_trc(cee, 0);
 569                 cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, status);
 570         }
 571 }
 572 
 573 /*
 574  * bfa_cee_reset_stats_isr()
 575  *
 576  * @brief CEE ISR for reset-stats responses from f/w
 577  *
 578  * @param[in] cee - Pointer to the CEE module
 579  *            status - Return status from the f/w
 580  *
 581  * @return void
 582  */
 583 static void
 584 bfa_cee_reset_stats_isr(struct bfa_cee_s *cee, bfa_status_t status)
 585 {
 586         cee->reset_stats_status = status;
 587         cee->reset_stats_pending = BFA_FALSE;
 588         if (cee->cbfn.reset_stats_cbfn)
 589                 cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, status);
 590 }
 591 
 592 /*
 593  * bfa_cee_meminfo()
 594  *
 595  * @brief Returns the size of the DMA memory needed by CEE module
 596  *
 597  * @param[in] void
 598  *
 599  * @return Size of DMA region
 600  */
 601 u32
 602 bfa_cee_meminfo(void)
 603 {
 604         return BFA_ROUNDUP(sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ) +
 605                 BFA_ROUNDUP(sizeof(struct bfa_cee_stats_s), BFA_DMA_ALIGN_SZ);
 606 }
 607 
 608 /*
 609  * bfa_cee_mem_claim()
 610  *
 611  * @brief Initialized CEE DMA Memory
 612  *
 613  * @param[in] cee CEE module pointer
 614  *            dma_kva Kernel Virtual Address of CEE DMA Memory
 615  *            dma_pa  Physical Address of CEE DMA Memory
 616  *
 617  * @return void
 618  */
 619 void
 620 bfa_cee_mem_claim(struct bfa_cee_s *cee, u8 *dma_kva, u64 dma_pa)
 621 {
 622         cee->attr_dma.kva = dma_kva;
 623         cee->attr_dma.pa = dma_pa;
 624         cee->stats_dma.kva = dma_kva + BFA_ROUNDUP(
 625                              sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ);
 626         cee->stats_dma.pa = dma_pa + BFA_ROUNDUP(
 627                              sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ);
 628         cee->attr = (struct bfa_cee_attr_s *) dma_kva;
 629         cee->stats = (struct bfa_cee_stats_s *) (dma_kva + BFA_ROUNDUP(
 630                         sizeof(struct bfa_cee_attr_s), BFA_DMA_ALIGN_SZ));
 631 }
 632 
 633 /*
 634  * bfa_cee_get_attr()
 635  *
 636  * @brief
 637  *   Send the request to the f/w to fetch CEE attributes.
 638  *
 639  * @param[in] Pointer to the CEE module data structure.
 640  *
 641  * @return Status
 642  */
 643 
 644 bfa_status_t
 645 bfa_cee_get_attr(struct bfa_cee_s *cee, struct bfa_cee_attr_s *attr,
 646                  bfa_cee_get_attr_cbfn_t cbfn, void *cbarg)
 647 {
 648         struct bfi_cee_get_req_s *cmd;
 649 
 650         WARN_ON((cee == NULL) || (cee->ioc == NULL));
 651         bfa_trc(cee, 0);
 652         if (!bfa_ioc_is_operational(cee->ioc)) {
 653                 bfa_trc(cee, 0);
 654                 return BFA_STATUS_IOC_FAILURE;
 655         }
 656         if (cee->get_attr_pending == BFA_TRUE) {
 657                 bfa_trc(cee, 0);
 658                 return  BFA_STATUS_DEVBUSY;
 659         }
 660         cee->get_attr_pending = BFA_TRUE;
 661         cmd = (struct bfi_cee_get_req_s *) cee->get_cfg_mb.msg;
 662         cee->attr = attr;
 663         cee->cbfn.get_attr_cbfn = cbfn;
 664         cee->cbfn.get_attr_cbarg = cbarg;
 665         bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_CFG_REQ,
 666                 bfa_ioc_portid(cee->ioc));
 667         bfa_dma_be_addr_set(cmd->dma_addr, cee->attr_dma.pa);
 668         bfa_ioc_mbox_queue(cee->ioc, &cee->get_cfg_mb);
 669 
 670         return BFA_STATUS_OK;
 671 }
 672 
 673 /*
 674  * bfa_cee_get_stats()
 675  *
 676  * @brief
 677  *   Send the request to the f/w to fetch CEE statistics.
 678  *
 679  * @param[in] Pointer to the CEE module data structure.
 680  *
 681  * @return Status
 682  */
 683 
 684 bfa_status_t
 685 bfa_cee_get_stats(struct bfa_cee_s *cee, struct bfa_cee_stats_s *stats,
 686                   bfa_cee_get_stats_cbfn_t cbfn, void *cbarg)
 687 {
 688         struct bfi_cee_get_req_s *cmd;
 689 
 690         WARN_ON((cee == NULL) || (cee->ioc == NULL));
 691 
 692         if (!bfa_ioc_is_operational(cee->ioc)) {
 693                 bfa_trc(cee, 0);
 694                 return BFA_STATUS_IOC_FAILURE;
 695         }
 696         if (cee->get_stats_pending == BFA_TRUE) {
 697                 bfa_trc(cee, 0);
 698                 return  BFA_STATUS_DEVBUSY;
 699         }
 700         cee->get_stats_pending = BFA_TRUE;
 701         cmd = (struct bfi_cee_get_req_s *) cee->get_stats_mb.msg;
 702         cee->stats = stats;
 703         cee->cbfn.get_stats_cbfn = cbfn;
 704         cee->cbfn.get_stats_cbarg = cbarg;
 705         bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_STATS_REQ,
 706                 bfa_ioc_portid(cee->ioc));
 707         bfa_dma_be_addr_set(cmd->dma_addr, cee->stats_dma.pa);
 708         bfa_ioc_mbox_queue(cee->ioc, &cee->get_stats_mb);
 709 
 710         return BFA_STATUS_OK;
 711 }
 712 
 713 /*
 714  * bfa_cee_reset_stats()
 715  *
 716  * @brief Clears CEE Stats in the f/w.
 717  *
 718  * @param[in] Pointer to the CEE module data structure.
 719  *
 720  * @return Status
 721  */
 722 
 723 bfa_status_t
 724 bfa_cee_reset_stats(struct bfa_cee_s *cee,
 725                     bfa_cee_reset_stats_cbfn_t cbfn, void *cbarg)
 726 {
 727         struct bfi_cee_reset_stats_s *cmd;
 728 
 729         WARN_ON((cee == NULL) || (cee->ioc == NULL));
 730         if (!bfa_ioc_is_operational(cee->ioc)) {
 731                 bfa_trc(cee, 0);
 732                 return BFA_STATUS_IOC_FAILURE;
 733         }
 734         if (cee->reset_stats_pending == BFA_TRUE) {
 735                 bfa_trc(cee, 0);
 736                 return  BFA_STATUS_DEVBUSY;
 737         }
 738         cee->reset_stats_pending = BFA_TRUE;
 739         cmd = (struct bfi_cee_reset_stats_s *) cee->reset_stats_mb.msg;
 740         cee->cbfn.reset_stats_cbfn = cbfn;
 741         cee->cbfn.reset_stats_cbarg = cbarg;
 742         bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_RESET_STATS,
 743                 bfa_ioc_portid(cee->ioc));
 744         bfa_ioc_mbox_queue(cee->ioc, &cee->reset_stats_mb);
 745 
 746         return BFA_STATUS_OK;
 747 }
 748 
 749 /*
 750  * bfa_cee_isrs()
 751  *
 752  * @brief Handles Mail-box interrupts for CEE module.
 753  *
 754  * @param[in] Pointer to the CEE module data structure.
 755  *
 756  * @return void
 757  */
 758 
 759 void
 760 bfa_cee_isr(void *cbarg, struct bfi_mbmsg_s *m)
 761 {
 762         union bfi_cee_i2h_msg_u *msg;
 763         struct bfi_cee_get_rsp_s *get_rsp;
 764         struct bfa_cee_s *cee = (struct bfa_cee_s *) cbarg;
 765         msg = (union bfi_cee_i2h_msg_u *) m;
 766         get_rsp = (struct bfi_cee_get_rsp_s *) m;
 767         bfa_trc(cee, msg->mh.msg_id);
 768         switch (msg->mh.msg_id) {
 769         case BFI_CEE_I2H_GET_CFG_RSP:
 770                 bfa_trc(cee, get_rsp->cmd_status);
 771                 bfa_cee_get_attr_isr(cee, get_rsp->cmd_status);
 772                 break;
 773         case BFI_CEE_I2H_GET_STATS_RSP:
 774                 bfa_cee_get_stats_isr(cee, get_rsp->cmd_status);
 775                 break;
 776         case BFI_CEE_I2H_RESET_STATS_RSP:
 777                 bfa_cee_reset_stats_isr(cee, get_rsp->cmd_status);
 778                 break;
 779         default:
 780                 WARN_ON(1);
 781         }
 782 }
 783 
 784 /*
 785  * bfa_cee_notify()
 786  *
 787  * @brief CEE module IOC event handler.
 788  *
 789  * @param[in] Pointer to the CEE module data structure.
 790  * @param[in] IOC event type
 791  *
 792  * @return void
 793  */
 794 
 795 void
 796 bfa_cee_notify(void *arg, enum bfa_ioc_event_e event)
 797 {
 798         struct bfa_cee_s *cee = (struct bfa_cee_s *) arg;
 799 
 800         bfa_trc(cee, event);
 801 
 802         switch (event) {
 803         case BFA_IOC_E_DISABLED:
 804         case BFA_IOC_E_FAILED:
 805                 if (cee->get_attr_pending == BFA_TRUE) {
 806                         cee->get_attr_status = BFA_STATUS_FAILED;
 807                         cee->get_attr_pending  = BFA_FALSE;
 808                         if (cee->cbfn.get_attr_cbfn) {
 809                                 cee->cbfn.get_attr_cbfn(
 810                                         cee->cbfn.get_attr_cbarg,
 811                                         BFA_STATUS_FAILED);
 812                         }
 813                 }
 814                 if (cee->get_stats_pending == BFA_TRUE) {
 815                         cee->get_stats_status = BFA_STATUS_FAILED;
 816                         cee->get_stats_pending  = BFA_FALSE;
 817                         if (cee->cbfn.get_stats_cbfn) {
 818                                 cee->cbfn.get_stats_cbfn(
 819                                 cee->cbfn.get_stats_cbarg,
 820                                 BFA_STATUS_FAILED);
 821                         }
 822                 }
 823                 if (cee->reset_stats_pending == BFA_TRUE) {
 824                         cee->reset_stats_status = BFA_STATUS_FAILED;
 825                         cee->reset_stats_pending  = BFA_FALSE;
 826                         if (cee->cbfn.reset_stats_cbfn) {
 827                                 cee->cbfn.reset_stats_cbfn(
 828                                 cee->cbfn.reset_stats_cbarg,
 829                                 BFA_STATUS_FAILED);
 830                         }
 831                 }
 832                 break;
 833 
 834         default:
 835                 break;
 836         }
 837 }
 838 
 839 /*
 840  * bfa_cee_attach()
 841  *
 842  * @brief CEE module-attach API
 843  *
 844  * @param[in] cee - Pointer to the CEE module data structure
 845  *            ioc - Pointer to the ioc module data structure
 846  *            dev - Pointer to the device driver module data structure
 847  *                  The device driver specific mbox ISR functions have
 848  *                  this pointer as one of the parameters.
 849  *
 850  * @return void
 851  */
 852 void
 853 bfa_cee_attach(struct bfa_cee_s *cee, struct bfa_ioc_s *ioc,
 854                 void *dev)
 855 {
 856         WARN_ON(cee == NULL);
 857         cee->dev = dev;
 858         cee->ioc = ioc;
 859 
 860         bfa_ioc_mbox_regisr(cee->ioc, BFI_MC_CEE, bfa_cee_isr, cee);
 861         bfa_q_qe_init(&cee->ioc_notify);
 862         bfa_ioc_notify_init(&cee->ioc_notify, bfa_cee_notify, cee);
 863         list_add_tail(&cee->ioc_notify.qe, &cee->ioc->notify_q);
 864 }
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root/drivers/scsi/bfa/bfa_port.c

DEFINITIONS
