File Index
Files and directories
Sign in
FILE

bfa_core.c

File preview with syntax highlighting.

linux-6.19.14/drivers/scsi/bfa/bfa_core.c C 
   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_modules.h"
  13#include "bfi_reg.h"
  14
  15BFA_TRC_FILE(HAL, CORE);
  16
  17/*
  18 * Message handlers for various modules.
  19 */
  20static bfa_isr_func_t  bfa_isrs[BFI_MC_MAX] = {
  21	bfa_isr_unhandled,	/* NONE */
  22	bfa_isr_unhandled,	/* BFI_MC_IOC */
  23	bfa_fcdiag_intr,	/* BFI_MC_DIAG */
  24	bfa_isr_unhandled,	/* BFI_MC_FLASH */
  25	bfa_isr_unhandled,	/* BFI_MC_CEE */
  26	bfa_fcport_isr,		/* BFI_MC_FCPORT */
  27	bfa_isr_unhandled,	/* BFI_MC_IOCFC */
  28	bfa_isr_unhandled,	/* BFI_MC_LL */
  29	bfa_uf_isr,		/* BFI_MC_UF */
  30	bfa_fcxp_isr,		/* BFI_MC_FCXP */
  31	bfa_lps_isr,		/* BFI_MC_LPS */
  32	bfa_rport_isr,		/* BFI_MC_RPORT */
  33	bfa_itn_isr,		/* BFI_MC_ITN */
  34	bfa_isr_unhandled,	/* BFI_MC_IOIM_READ */
  35	bfa_isr_unhandled,	/* BFI_MC_IOIM_WRITE */
  36	bfa_isr_unhandled,	/* BFI_MC_IOIM_IO */
  37	bfa_ioim_isr,		/* BFI_MC_IOIM */
  38	bfa_ioim_good_comp_isr,	/* BFI_MC_IOIM_IOCOM */
  39	bfa_tskim_isr,		/* BFI_MC_TSKIM */
  40	bfa_isr_unhandled,	/* BFI_MC_SBOOT */
  41	bfa_isr_unhandled,	/* BFI_MC_IPFC */
  42	bfa_isr_unhandled,	/* BFI_MC_PORT */
  43	bfa_isr_unhandled,	/* --------- */
  44	bfa_isr_unhandled,	/* --------- */
  45	bfa_isr_unhandled,	/* --------- */
  46	bfa_isr_unhandled,	/* --------- */
  47	bfa_isr_unhandled,	/* --------- */
  48	bfa_isr_unhandled,	/* --------- */
  49	bfa_isr_unhandled,	/* --------- */
  50	bfa_isr_unhandled,	/* --------- */
  51	bfa_isr_unhandled,	/* --------- */
  52	bfa_isr_unhandled,	/* --------- */
  53};
  54/*
  55 * Message handlers for mailbox command classes
  56 */
  57static bfa_ioc_mbox_mcfunc_t  bfa_mbox_isrs[BFI_MC_MAX] = {
  58	NULL,
  59	NULL,		/* BFI_MC_IOC   */
  60	NULL,		/* BFI_MC_DIAG  */
  61	NULL,		/* BFI_MC_FLASH */
  62	NULL,		/* BFI_MC_CEE   */
  63	NULL,		/* BFI_MC_PORT  */
  64	bfa_iocfc_isr,	/* BFI_MC_IOCFC */
  65	NULL,
  66};
  67
  68
  69
  70void
  71__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
  72{
  73	int		tail = trcm->tail;
  74	struct bfa_trc_s	*trc = &trcm->trc[tail];
  75
  76	if (trcm->stopped)
  77		return;
  78
  79	trc->fileno = (u16) fileno;
  80	trc->line = (u16) line;
  81	trc->data.u64 = data;
  82	trc->timestamp = BFA_TRC_TS(trcm);
  83
  84	trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
  85	if (trcm->tail == trcm->head)
  86		trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
  87}
  88
  89static void
  90bfa_com_port_attach(struct bfa_s *bfa)
  91{
  92	struct bfa_port_s	*port = &bfa->modules.port;
  93	struct bfa_mem_dma_s	*port_dma = BFA_MEM_PORT_DMA(bfa);
  94
  95	bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod);
  96	bfa_port_mem_claim(port, port_dma->kva_curp, port_dma->dma_curp);
  97}
  98
  99/*
 100 * ablk module attach
 101 */
 102static void
 103bfa_com_ablk_attach(struct bfa_s *bfa)
 104{
 105	struct bfa_ablk_s	*ablk = &bfa->modules.ablk;
 106	struct bfa_mem_dma_s	*ablk_dma = BFA_MEM_ABLK_DMA(bfa);
 107
 108	bfa_ablk_attach(ablk, &bfa->ioc);
 109	bfa_ablk_memclaim(ablk, ablk_dma->kva_curp, ablk_dma->dma_curp);
 110}
 111
 112static void
 113bfa_com_cee_attach(struct bfa_s *bfa)
 114{
 115	struct bfa_cee_s	*cee = &bfa->modules.cee;
 116	struct bfa_mem_dma_s	*cee_dma = BFA_MEM_CEE_DMA(bfa);
 117
 118	cee->trcmod = bfa->trcmod;
 119	bfa_cee_attach(cee, &bfa->ioc, bfa);
 120	bfa_cee_mem_claim(cee, cee_dma->kva_curp, cee_dma->dma_curp);
 121}
 122
 123static void
 124bfa_com_sfp_attach(struct bfa_s *bfa)
 125{
 126	struct bfa_sfp_s	*sfp = BFA_SFP_MOD(bfa);
 127	struct bfa_mem_dma_s	*sfp_dma = BFA_MEM_SFP_DMA(bfa);
 128
 129	bfa_sfp_attach(sfp, &bfa->ioc, bfa, bfa->trcmod);
 130	bfa_sfp_memclaim(sfp, sfp_dma->kva_curp, sfp_dma->dma_curp);
 131}
 132
 133static void
 134bfa_com_flash_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
 135{
 136	struct bfa_flash_s	*flash = BFA_FLASH(bfa);
 137	struct bfa_mem_dma_s	*flash_dma = BFA_MEM_FLASH_DMA(bfa);
 138
 139	bfa_flash_attach(flash, &bfa->ioc, bfa, bfa->trcmod, mincfg);
 140	bfa_flash_memclaim(flash, flash_dma->kva_curp,
 141			   flash_dma->dma_curp, mincfg);
 142}
 143
 144static void
 145bfa_com_diag_attach(struct bfa_s *bfa)
 146{
 147	struct bfa_diag_s	*diag = BFA_DIAG_MOD(bfa);
 148	struct bfa_mem_dma_s	*diag_dma = BFA_MEM_DIAG_DMA(bfa);
 149
 150	bfa_diag_attach(diag, &bfa->ioc, bfa, bfa_fcport_beacon, bfa->trcmod);
 151	bfa_diag_memclaim(diag, diag_dma->kva_curp, diag_dma->dma_curp);
 152}
 153
 154static void
 155bfa_com_phy_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
 156{
 157	struct bfa_phy_s	*phy = BFA_PHY(bfa);
 158	struct bfa_mem_dma_s	*phy_dma = BFA_MEM_PHY_DMA(bfa);
 159
 160	bfa_phy_attach(phy, &bfa->ioc, bfa, bfa->trcmod, mincfg);
 161	bfa_phy_memclaim(phy, phy_dma->kva_curp, phy_dma->dma_curp, mincfg);
 162}
 163
 164static void
 165bfa_com_fru_attach(struct bfa_s *bfa, bfa_boolean_t mincfg)
 166{
 167	struct bfa_fru_s	*fru = BFA_FRU(bfa);
 168	struct bfa_mem_dma_s	*fru_dma = BFA_MEM_FRU_DMA(bfa);
 169
 170	bfa_fru_attach(fru, &bfa->ioc, bfa, bfa->trcmod, mincfg);
 171	bfa_fru_memclaim(fru, fru_dma->kva_curp, fru_dma->dma_curp, mincfg);
 172}
 173
 174/*
 175 * BFA IOC FC related definitions
 176 */
 177
 178/*
 179 * IOC local definitions
 180 */
 181#define BFA_IOCFC_TOV		5000	/* msecs */
 182
 183enum {
 184	BFA_IOCFC_ACT_NONE	= 0,
 185	BFA_IOCFC_ACT_INIT	= 1,
 186	BFA_IOCFC_ACT_STOP	= 2,
 187	BFA_IOCFC_ACT_DISABLE	= 3,
 188	BFA_IOCFC_ACT_ENABLE	= 4,
 189};
 190
 191#define DEF_CFG_NUM_FABRICS		1
 192#define DEF_CFG_NUM_LPORTS		256
 193#define DEF_CFG_NUM_CQS			4
 194#define DEF_CFG_NUM_IOIM_REQS		(BFA_IOIM_MAX)
 195#define DEF_CFG_NUM_TSKIM_REQS		128
 196#define DEF_CFG_NUM_FCXP_REQS		64
 197#define DEF_CFG_NUM_UF_BUFS		64
 198#define DEF_CFG_NUM_RPORTS		1024
 199#define DEF_CFG_NUM_ITNIMS		(DEF_CFG_NUM_RPORTS)
 200#define DEF_CFG_NUM_TINS		256
 201
 202#define DEF_CFG_NUM_SGPGS		2048
 203#define DEF_CFG_NUM_REQQ_ELEMS		256
 204#define DEF_CFG_NUM_RSPQ_ELEMS		64
 205#define DEF_CFG_NUM_SBOOT_TGTS		16
 206#define DEF_CFG_NUM_SBOOT_LUNS		16
 207
 208/*
 209 * IOCFC state machine definitions/declarations
 210 */
 211bfa_fsm_state_decl(bfa_iocfc, stopped, struct bfa_iocfc_s, enum iocfc_event);
 212bfa_fsm_state_decl(bfa_iocfc, initing, struct bfa_iocfc_s, enum iocfc_event);
 213bfa_fsm_state_decl(bfa_iocfc, dconf_read, struct bfa_iocfc_s, enum iocfc_event);
 214bfa_fsm_state_decl(bfa_iocfc, init_cfg_wait,
 215		   struct bfa_iocfc_s, enum iocfc_event);
 216bfa_fsm_state_decl(bfa_iocfc, init_cfg_done,
 217		   struct bfa_iocfc_s, enum iocfc_event);
 218bfa_fsm_state_decl(bfa_iocfc, operational,
 219		   struct bfa_iocfc_s, enum iocfc_event);
 220bfa_fsm_state_decl(bfa_iocfc, dconf_write,
 221		   struct bfa_iocfc_s, enum iocfc_event);
 222bfa_fsm_state_decl(bfa_iocfc, stopping, struct bfa_iocfc_s, enum iocfc_event);
 223bfa_fsm_state_decl(bfa_iocfc, enabling, struct bfa_iocfc_s, enum iocfc_event);
 224bfa_fsm_state_decl(bfa_iocfc, cfg_wait, struct bfa_iocfc_s, enum iocfc_event);
 225bfa_fsm_state_decl(bfa_iocfc, disabling, struct bfa_iocfc_s, enum iocfc_event);
 226bfa_fsm_state_decl(bfa_iocfc, disabled, struct bfa_iocfc_s, enum iocfc_event);
 227bfa_fsm_state_decl(bfa_iocfc, failed, struct bfa_iocfc_s, enum iocfc_event);
 228bfa_fsm_state_decl(bfa_iocfc, init_failed,
 229		   struct bfa_iocfc_s, enum iocfc_event);
 230
 231/*
 232 * forward declaration for IOC FC functions
 233 */
 234static void bfa_iocfc_start_submod(struct bfa_s *bfa);
 235static void bfa_iocfc_disable_submod(struct bfa_s *bfa);
 236static void bfa_iocfc_send_cfg(void *bfa_arg);
 237static void bfa_iocfc_enable_cbfn(void *bfa_arg, enum bfa_status status);
 238static void bfa_iocfc_disable_cbfn(void *bfa_arg);
 239static void bfa_iocfc_hbfail_cbfn(void *bfa_arg);
 240static void bfa_iocfc_reset_cbfn(void *bfa_arg);
 241static struct bfa_ioc_cbfn_s bfa_iocfc_cbfn;
 242static void bfa_iocfc_init_cb(void *bfa_arg, bfa_boolean_t complete);
 243static void bfa_iocfc_stop_cb(void *bfa_arg, bfa_boolean_t compl);
 244static void bfa_iocfc_enable_cb(void *bfa_arg, bfa_boolean_t compl);
 245static void bfa_iocfc_disable_cb(void *bfa_arg, bfa_boolean_t compl);
 246
 247static void
 248bfa_iocfc_sm_stopped_entry(struct bfa_iocfc_s *iocfc)
 249{
 250}
 251
 252static void
 253bfa_iocfc_sm_stopped(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 254{
 255	bfa_trc(iocfc->bfa, event);
 256
 257	switch (event) {
 258	case IOCFC_E_INIT:
 259	case IOCFC_E_ENABLE:
 260		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_initing);
 261		break;
 262	default:
 263		bfa_sm_fault(iocfc->bfa, event);
 264		break;
 265	}
 266}
 267
 268static void
 269bfa_iocfc_sm_initing_entry(struct bfa_iocfc_s *iocfc)
 270{
 271	bfa_ioc_enable(&iocfc->bfa->ioc);
 272}
 273
 274static void
 275bfa_iocfc_sm_initing(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 276{
 277	bfa_trc(iocfc->bfa, event);
 278
 279	switch (event) {
 280	case IOCFC_E_IOC_ENABLED:
 281		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_read);
 282		break;
 283
 284	case IOCFC_E_DISABLE:
 285		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 286		break;
 287
 288	case IOCFC_E_STOP:
 289		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 290		break;
 291
 292	case IOCFC_E_IOC_FAILED:
 293		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
 294		break;
 295	default:
 296		bfa_sm_fault(iocfc->bfa, event);
 297		break;
 298	}
 299}
 300
 301static void
 302bfa_iocfc_sm_dconf_read_entry(struct bfa_iocfc_s *iocfc)
 303{
 304	bfa_dconf_modinit(iocfc->bfa);
 305}
 306
 307static void
 308bfa_iocfc_sm_dconf_read(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 309{
 310	bfa_trc(iocfc->bfa, event);
 311
 312	switch (event) {
 313	case IOCFC_E_DCONF_DONE:
 314		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_cfg_wait);
 315		break;
 316
 317	case IOCFC_E_DISABLE:
 318		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 319		break;
 320
 321	case IOCFC_E_STOP:
 322		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 323		break;
 324
 325	case IOCFC_E_IOC_FAILED:
 326		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
 327		break;
 328	default:
 329		bfa_sm_fault(iocfc->bfa, event);
 330		break;
 331	}
 332}
 333
 334static void
 335bfa_iocfc_sm_init_cfg_wait_entry(struct bfa_iocfc_s *iocfc)
 336{
 337	bfa_iocfc_send_cfg(iocfc->bfa);
 338}
 339
 340static void
 341bfa_iocfc_sm_init_cfg_wait(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 342{
 343	bfa_trc(iocfc->bfa, event);
 344
 345	switch (event) {
 346	case IOCFC_E_CFG_DONE:
 347		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_cfg_done);
 348		break;
 349
 350	case IOCFC_E_DISABLE:
 351		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 352		break;
 353
 354	case IOCFC_E_STOP:
 355		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 356		break;
 357
 358	case IOCFC_E_IOC_FAILED:
 359		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_init_failed);
 360		break;
 361	default:
 362		bfa_sm_fault(iocfc->bfa, event);
 363		break;
 364	}
 365}
 366
 367static void
 368bfa_iocfc_sm_init_cfg_done_entry(struct bfa_iocfc_s *iocfc)
 369{
 370	iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
 371	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.init_hcb_qe,
 372		     bfa_iocfc_init_cb, iocfc->bfa);
 373}
 374
 375static void
 376bfa_iocfc_sm_init_cfg_done(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 377{
 378	bfa_trc(iocfc->bfa, event);
 379
 380	switch (event) {
 381	case IOCFC_E_START:
 382		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_operational);
 383		break;
 384	case IOCFC_E_STOP:
 385		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 386		break;
 387	case IOCFC_E_DISABLE:
 388		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 389		break;
 390	case IOCFC_E_IOC_FAILED:
 391		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
 392		break;
 393	default:
 394		bfa_sm_fault(iocfc->bfa, event);
 395		break;
 396	}
 397}
 398
 399static void
 400bfa_iocfc_sm_operational_entry(struct bfa_iocfc_s *iocfc)
 401{
 402	bfa_fcport_init(iocfc->bfa);
 403	bfa_iocfc_start_submod(iocfc->bfa);
 404}
 405
 406static void
 407bfa_iocfc_sm_operational(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 408{
 409	bfa_trc(iocfc->bfa, event);
 410
 411	switch (event) {
 412	case IOCFC_E_STOP:
 413		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
 414		break;
 415	case IOCFC_E_DISABLE:
 416		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 417		break;
 418	case IOCFC_E_IOC_FAILED:
 419		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
 420		break;
 421	default:
 422		bfa_sm_fault(iocfc->bfa, event);
 423		break;
 424	}
 425}
 426
 427static void
 428bfa_iocfc_sm_dconf_write_entry(struct bfa_iocfc_s *iocfc)
 429{
 430	bfa_dconf_modexit(iocfc->bfa);
 431}
 432
 433static void
 434bfa_iocfc_sm_dconf_write(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 435{
 436	bfa_trc(iocfc->bfa, event);
 437
 438	switch (event) {
 439	case IOCFC_E_DCONF_DONE:
 440	case IOCFC_E_IOC_FAILED:
 441		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 442		break;
 443	default:
 444		bfa_sm_fault(iocfc->bfa, event);
 445		break;
 446	}
 447}
 448
 449static void
 450bfa_iocfc_sm_stopping_entry(struct bfa_iocfc_s *iocfc)
 451{
 452	bfa_ioc_disable(&iocfc->bfa->ioc);
 453}
 454
 455static void
 456bfa_iocfc_sm_stopping(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 457{
 458	bfa_trc(iocfc->bfa, event);
 459
 460	switch (event) {
 461	case IOCFC_E_IOC_DISABLED:
 462		bfa_isr_disable(iocfc->bfa);
 463		bfa_iocfc_disable_submod(iocfc->bfa);
 464		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopped);
 465		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
 466		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.stop_hcb_qe,
 467			     bfa_iocfc_stop_cb, iocfc->bfa);
 468		break;
 469
 470	case IOCFC_E_IOC_ENABLED:
 471	case IOCFC_E_DCONF_DONE:
 472	case IOCFC_E_CFG_DONE:
 473		break;
 474
 475	default:
 476		bfa_sm_fault(iocfc->bfa, event);
 477		break;
 478	}
 479}
 480
 481static void
 482bfa_iocfc_sm_enabling_entry(struct bfa_iocfc_s *iocfc)
 483{
 484	bfa_ioc_enable(&iocfc->bfa->ioc);
 485}
 486
 487static void
 488bfa_iocfc_sm_enabling(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 489{
 490	bfa_trc(iocfc->bfa, event);
 491
 492	switch (event) {
 493	case IOCFC_E_IOC_ENABLED:
 494		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_cfg_wait);
 495		break;
 496
 497	case IOCFC_E_DISABLE:
 498		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 499		break;
 500
 501	case IOCFC_E_STOP:
 502		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
 503		break;
 504
 505	case IOCFC_E_IOC_FAILED:
 506		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
 507
 508		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
 509			break;
 510
 511		iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
 512		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
 513			     bfa_iocfc_enable_cb, iocfc->bfa);
 514		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
 515		break;
 516	default:
 517		bfa_sm_fault(iocfc->bfa, event);
 518		break;
 519	}
 520}
 521
 522static void
 523bfa_iocfc_sm_cfg_wait_entry(struct bfa_iocfc_s *iocfc)
 524{
 525	bfa_iocfc_send_cfg(iocfc->bfa);
 526}
 527
 528static void
 529bfa_iocfc_sm_cfg_wait(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 530{
 531	bfa_trc(iocfc->bfa, event);
 532
 533	switch (event) {
 534	case IOCFC_E_CFG_DONE:
 535		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_operational);
 536		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
 537			break;
 538
 539		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
 540		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
 541			     bfa_iocfc_enable_cb, iocfc->bfa);
 542		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
 543		break;
 544	case IOCFC_E_DISABLE:
 545		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 546		break;
 547
 548	case IOCFC_E_STOP:
 549		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
 550		break;
 551	case IOCFC_E_IOC_FAILED:
 552		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_failed);
 553		if (iocfc->bfa->iocfc.cb_reqd == BFA_FALSE)
 554			break;
 555
 556		iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
 557		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.en_hcb_qe,
 558			     bfa_iocfc_enable_cb, iocfc->bfa);
 559		iocfc->bfa->iocfc.cb_reqd = BFA_FALSE;
 560		break;
 561	default:
 562		bfa_sm_fault(iocfc->bfa, event);
 563		break;
 564	}
 565}
 566
 567static void
 568bfa_iocfc_sm_disabling_entry(struct bfa_iocfc_s *iocfc)
 569{
 570	bfa_ioc_disable(&iocfc->bfa->ioc);
 571}
 572
 573static void
 574bfa_iocfc_sm_disabling(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 575{
 576	bfa_trc(iocfc->bfa, event);
 577
 578	switch (event) {
 579	case IOCFC_E_IOC_DISABLED:
 580		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabled);
 581		break;
 582	case IOCFC_E_IOC_ENABLED:
 583	case IOCFC_E_DCONF_DONE:
 584	case IOCFC_E_CFG_DONE:
 585		break;
 586	default:
 587		bfa_sm_fault(iocfc->bfa, event);
 588		break;
 589	}
 590}
 591
 592static void
 593bfa_iocfc_sm_disabled_entry(struct bfa_iocfc_s *iocfc)
 594{
 595	bfa_isr_disable(iocfc->bfa);
 596	bfa_iocfc_disable_submod(iocfc->bfa);
 597	iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
 598	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.dis_hcb_qe,
 599		     bfa_iocfc_disable_cb, iocfc->bfa);
 600}
 601
 602static void
 603bfa_iocfc_sm_disabled(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 604{
 605	bfa_trc(iocfc->bfa, event);
 606
 607	switch (event) {
 608	case IOCFC_E_STOP:
 609		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
 610		break;
 611	case IOCFC_E_ENABLE:
 612		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_enabling);
 613		break;
 614	default:
 615		bfa_sm_fault(iocfc->bfa, event);
 616		break;
 617	}
 618}
 619
 620static void
 621bfa_iocfc_sm_failed_entry(struct bfa_iocfc_s *iocfc)
 622{
 623	bfa_isr_disable(iocfc->bfa);
 624	bfa_iocfc_disable_submod(iocfc->bfa);
 625}
 626
 627static void
 628bfa_iocfc_sm_failed(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 629{
 630	bfa_trc(iocfc->bfa, event);
 631
 632	switch (event) {
 633	case IOCFC_E_STOP:
 634		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_write);
 635		break;
 636	case IOCFC_E_DISABLE:
 637		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_disabling);
 638		break;
 639	case IOCFC_E_IOC_ENABLED:
 640		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_cfg_wait);
 641		break;
 642	case IOCFC_E_IOC_FAILED:
 643		break;
 644	default:
 645		bfa_sm_fault(iocfc->bfa, event);
 646		break;
 647	}
 648}
 649
 650static void
 651bfa_iocfc_sm_init_failed_entry(struct bfa_iocfc_s *iocfc)
 652{
 653	bfa_isr_disable(iocfc->bfa);
 654	iocfc->bfa->iocfc.op_status = BFA_STATUS_FAILED;
 655	bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.init_hcb_qe,
 656		     bfa_iocfc_init_cb, iocfc->bfa);
 657}
 658
 659static void
 660bfa_iocfc_sm_init_failed(struct bfa_iocfc_s *iocfc, enum iocfc_event event)
 661{
 662	bfa_trc(iocfc->bfa, event);
 663
 664	switch (event) {
 665	case IOCFC_E_STOP:
 666		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopping);
 667		break;
 668	case IOCFC_E_DISABLE:
 669		bfa_ioc_disable(&iocfc->bfa->ioc);
 670		break;
 671	case IOCFC_E_IOC_ENABLED:
 672		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_dconf_read);
 673		break;
 674	case IOCFC_E_IOC_DISABLED:
 675		bfa_fsm_set_state(iocfc, bfa_iocfc_sm_stopped);
 676		iocfc->bfa->iocfc.op_status = BFA_STATUS_OK;
 677		bfa_cb_queue(iocfc->bfa, &iocfc->bfa->iocfc.dis_hcb_qe,
 678			     bfa_iocfc_disable_cb, iocfc->bfa);
 679		break;
 680	case IOCFC_E_IOC_FAILED:
 681		break;
 682	default:
 683		bfa_sm_fault(iocfc->bfa, event);
 684		break;
 685	}
 686}
 687
 688/*
 689 * BFA Interrupt handling functions
 690 */
 691static void
 692bfa_reqq_resume(struct bfa_s *bfa, int qid)
 693{
 694	struct list_head *waitq, *qe, *qen;
 695	struct bfa_reqq_wait_s *wqe;
 696
 697	waitq = bfa_reqq(bfa, qid);
 698	list_for_each_safe(qe, qen, waitq) {
 699		/*
 700		 * Callback only as long as there is room in request queue
 701		 */
 702		if (bfa_reqq_full(bfa, qid))
 703			break;
 704
 705		list_del(qe);
 706		wqe = (struct bfa_reqq_wait_s *) qe;
 707		wqe->qresume(wqe->cbarg);
 708	}
 709}
 710
 711static bfa_boolean_t
 712bfa_isr_rspq(struct bfa_s *bfa, int qid)
 713{
 714	struct bfi_msg_s *m;
 715	u32	pi, ci;
 716	struct list_head *waitq;
 717	bfa_boolean_t ret;
 718
 719	ci = bfa_rspq_ci(bfa, qid);
 720	pi = bfa_rspq_pi(bfa, qid);
 721
 722	ret = (ci != pi);
 723
 724	while (ci != pi) {
 725		m = bfa_rspq_elem(bfa, qid, ci);
 726		WARN_ON(m->mhdr.msg_class >= BFI_MC_MAX);
 727
 728		bfa_isrs[m->mhdr.msg_class] (bfa, m);
 729		CQ_INCR(ci, bfa->iocfc.cfg.drvcfg.num_rspq_elems);
 730	}
 731
 732	/*
 733	 * acknowledge RME completions and update CI
 734	 */
 735	bfa_isr_rspq_ack(bfa, qid, ci);
 736
 737	/*
 738	 * Resume any pending requests in the corresponding reqq.
 739	 */
 740	waitq = bfa_reqq(bfa, qid);
 741	if (!list_empty(waitq))
 742		bfa_reqq_resume(bfa, qid);
 743
 744	return ret;
 745}
 746
 747static inline void
 748bfa_isr_reqq(struct bfa_s *bfa, int qid)
 749{
 750	struct list_head *waitq;
 751
 752	bfa_isr_reqq_ack(bfa, qid);
 753
 754	/*
 755	 * Resume any pending requests in the corresponding reqq.
 756	 */
 757	waitq = bfa_reqq(bfa, qid);
 758	if (!list_empty(waitq))
 759		bfa_reqq_resume(bfa, qid);
 760}
 761
 762void
 763bfa_msix_all(struct bfa_s *bfa, int vec)
 764{
 765	u32	intr, qintr;
 766	int	queue;
 767
 768	intr = readl(bfa->iocfc.bfa_regs.intr_status);
 769	if (!intr)
 770		return;
 771
 772	/*
 773	 * RME completion queue interrupt
 774	 */
 775	qintr = intr & __HFN_INT_RME_MASK;
 776	if (qintr && bfa->queue_process) {
 777		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
 778			bfa_isr_rspq(bfa, queue);
 779	}
 780
 781	intr &= ~qintr;
 782	if (!intr)
 783		return;
 784
 785	/*
 786	 * CPE completion queue interrupt
 787	 */
 788	qintr = intr & __HFN_INT_CPE_MASK;
 789	if (qintr && bfa->queue_process) {
 790		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
 791			bfa_isr_reqq(bfa, queue);
 792	}
 793	intr &= ~qintr;
 794	if (!intr)
 795		return;
 796
 797	bfa_msix_lpu_err(bfa, intr);
 798}
 799
 800bfa_boolean_t
 801bfa_intx(struct bfa_s *bfa)
 802{
 803	u32 intr, qintr;
 804	int queue;
 805	bfa_boolean_t rspq_comp = BFA_FALSE;
 806
 807	intr = readl(bfa->iocfc.bfa_regs.intr_status);
 808
 809	qintr = intr & (__HFN_INT_RME_MASK | __HFN_INT_CPE_MASK);
 810	if (qintr)
 811		writel(qintr, bfa->iocfc.bfa_regs.intr_status);
 812
 813	/*
 814	 * Unconditional RME completion queue interrupt
 815	 */
 816	if (bfa->queue_process) {
 817		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
 818			if (bfa_isr_rspq(bfa, queue))
 819				rspq_comp = BFA_TRUE;
 820	}
 821
 822	if (!intr)
 823		return (qintr | rspq_comp) ? BFA_TRUE : BFA_FALSE;
 824
 825	/*
 826	 * CPE completion queue interrupt
 827	 */
 828	qintr = intr & __HFN_INT_CPE_MASK;
 829	if (qintr && bfa->queue_process) {
 830		for (queue = 0; queue < BFI_IOC_MAX_CQS; queue++)
 831			bfa_isr_reqq(bfa, queue);
 832	}
 833	intr &= ~qintr;
 834	if (!intr)
 835		return BFA_TRUE;
 836
 837	if (bfa->intr_enabled)
 838		bfa_msix_lpu_err(bfa, intr);
 839
 840	return BFA_TRUE;
 841}
 842
 843void
 844bfa_isr_enable(struct bfa_s *bfa)
 845{
 846	u32 umsk;
 847	int port_id = bfa_ioc_portid(&bfa->ioc);
 848
 849	bfa_trc(bfa, bfa_ioc_pcifn(&bfa->ioc));
 850	bfa_trc(bfa, port_id);
 851
 852	bfa_msix_ctrl_install(bfa);
 853
 854	if (bfa_asic_id_ct2(bfa->ioc.pcidev.device_id)) {
 855		umsk = __HFN_INT_ERR_MASK_CT2;
 856		umsk |= port_id == 0 ?
 857			__HFN_INT_FN0_MASK_CT2 : __HFN_INT_FN1_MASK_CT2;
 858	} else {
 859		umsk = __HFN_INT_ERR_MASK;
 860		umsk |= port_id == 0 ? __HFN_INT_FN0_MASK : __HFN_INT_FN1_MASK;
 861	}
 862
 863	writel(umsk, bfa->iocfc.bfa_regs.intr_status);
 864	writel(~umsk, bfa->iocfc.bfa_regs.intr_mask);
 865	bfa->iocfc.intr_mask = ~umsk;
 866	bfa_isr_mode_set(bfa, bfa->msix.nvecs != 0);
 867
 868	/*
 869	 * Set the flag indicating successful enabling of interrupts
 870	 */
 871	bfa->intr_enabled = BFA_TRUE;
 872}
 873
 874void
 875bfa_isr_disable(struct bfa_s *bfa)
 876{
 877	bfa->intr_enabled = BFA_FALSE;
 878	bfa_isr_mode_set(bfa, BFA_FALSE);
 879	writel(-1L, bfa->iocfc.bfa_regs.intr_mask);
 880	bfa_msix_uninstall(bfa);
 881}
 882
 883void
 884bfa_msix_reqq(struct bfa_s *bfa, int vec)
 885{
 886	bfa_isr_reqq(bfa, vec - bfa->iocfc.hwif.cpe_vec_q0);
 887}
 888
 889void
 890bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m)
 891{
 892	bfa_trc(bfa, m->mhdr.msg_class);
 893	bfa_trc(bfa, m->mhdr.msg_id);
 894	bfa_trc(bfa, m->mhdr.mtag.i2htok);
 895	WARN_ON(1);
 896	bfa_trc_stop(bfa->trcmod);
 897}
 898
 899void
 900bfa_msix_rspq(struct bfa_s *bfa, int vec)
 901{
 902	bfa_isr_rspq(bfa, vec - bfa->iocfc.hwif.rme_vec_q0);
 903}
 904
 905void
 906bfa_msix_lpu_err(struct bfa_s *bfa, int vec)
 907{
 908	u32 intr, curr_value;
 909	bfa_boolean_t lpu_isr, halt_isr, pss_isr;
 910
 911	intr = readl(bfa->iocfc.bfa_regs.intr_status);
 912
 913	if (bfa_asic_id_ct2(bfa->ioc.pcidev.device_id)) {
 914		halt_isr = intr & __HFN_INT_CPQ_HALT_CT2;
 915		pss_isr  = intr & __HFN_INT_ERR_PSS_CT2;
 916		lpu_isr  = intr & (__HFN_INT_MBOX_LPU0_CT2 |
 917				   __HFN_INT_MBOX_LPU1_CT2);
 918		intr    &= __HFN_INT_ERR_MASK_CT2;
 919	} else {
 920		halt_isr = bfa_asic_id_ct(bfa->ioc.pcidev.device_id) ?
 921					  (intr & __HFN_INT_LL_HALT) : 0;
 922		pss_isr  = intr & __HFN_INT_ERR_PSS;
 923		lpu_isr  = intr & (__HFN_INT_MBOX_LPU0 | __HFN_INT_MBOX_LPU1);
 924		intr    &= __HFN_INT_ERR_MASK;
 925	}
 926
 927	if (lpu_isr)
 928		bfa_ioc_mbox_isr(&bfa->ioc);
 929
 930	if (intr) {
 931		if (halt_isr) {
 932			/*
 933			 * If LL_HALT bit is set then FW Init Halt LL Port
 934			 * Register needs to be cleared as well so Interrupt
 935			 * Status Register will be cleared.
 936			 */
 937			curr_value = readl(bfa->ioc.ioc_regs.ll_halt);
 938			curr_value &= ~__FW_INIT_HALT_P;
 939			writel(curr_value, bfa->ioc.ioc_regs.ll_halt);
 940		}
 941
 942		if (pss_isr) {
 943			/*
 944			 * ERR_PSS bit needs to be cleared as well in case
 945			 * interrups are shared so driver's interrupt handler is
 946			 * still called even though it is already masked out.
 947			 */
 948			curr_value = readl(
 949					bfa->ioc.ioc_regs.pss_err_status_reg);
 950			writel(curr_value,
 951				bfa->ioc.ioc_regs.pss_err_status_reg);
 952		}
 953
 954		writel(intr, bfa->iocfc.bfa_regs.intr_status);
 955		bfa_ioc_error_isr(&bfa->ioc);
 956	}
 957}
 958
 959/*
 960 * BFA IOC FC related functions
 961 */
 962
 963/*
 964 *  BFA IOC private functions
 965 */
 966
 967/*
 968 * Use the Mailbox interface to send BFI_IOCFC_H2I_CFG_REQ
 969 */
 970static void
 971bfa_iocfc_send_cfg(void *bfa_arg)
 972{
 973	struct bfa_s *bfa = bfa_arg;
 974	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
 975	struct bfi_iocfc_cfg_req_s cfg_req;
 976	struct bfi_iocfc_cfg_s *cfg_info = iocfc->cfginfo;
 977	struct bfa_iocfc_cfg_s	*cfg = &iocfc->cfg;
 978	int		i;
 979
 980	WARN_ON(cfg->fwcfg.num_cqs > BFI_IOC_MAX_CQS);
 981	bfa_trc(bfa, cfg->fwcfg.num_cqs);
 982
 983	bfa_iocfc_reset_queues(bfa);
 984
 985	/*
 986	 * initialize IOC configuration info
 987	 */
 988	cfg_info->single_msix_vec = 0;
 989	if (bfa->msix.nvecs == 1)
 990		cfg_info->single_msix_vec = 1;
 991	cfg_info->endian_sig = BFI_IOC_ENDIAN_SIG;
 992	cfg_info->num_cqs = cfg->fwcfg.num_cqs;
 993	cfg_info->num_ioim_reqs = cpu_to_be16(bfa_fcpim_get_throttle_cfg(bfa,
 994					       cfg->fwcfg.num_ioim_reqs));
 995	cfg_info->num_fwtio_reqs = cpu_to_be16(cfg->fwcfg.num_fwtio_reqs);
 996
 997	bfa_dma_be_addr_set(cfg_info->cfgrsp_addr, iocfc->cfgrsp_dma.pa);
 998	/*
 999	 * dma map REQ and RSP circular queues and shadow pointers
1000	 */
1001	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
1002		bfa_dma_be_addr_set(cfg_info->req_cq_ba[i],
1003				    iocfc->req_cq_ba[i].pa);
1004		bfa_dma_be_addr_set(cfg_info->req_shadow_ci[i],
1005				    iocfc->req_cq_shadow_ci[i].pa);
1006		cfg_info->req_cq_elems[i] =
1007			cpu_to_be16(cfg->drvcfg.num_reqq_elems);
1008
1009		bfa_dma_be_addr_set(cfg_info->rsp_cq_ba[i],
1010				    iocfc->rsp_cq_ba[i].pa);
1011		bfa_dma_be_addr_set(cfg_info->rsp_shadow_pi[i],
1012				    iocfc->rsp_cq_shadow_pi[i].pa);
1013		cfg_info->rsp_cq_elems[i] =
1014			cpu_to_be16(cfg->drvcfg.num_rspq_elems);
1015	}
1016
1017	/*
1018	 * Enable interrupt coalescing if it is driver init path
1019	 * and not ioc disable/enable path.
1020	 */
1021	if (bfa_fsm_cmp_state(iocfc, bfa_iocfc_sm_init_cfg_wait))
1022		cfg_info->intr_attr.coalesce = BFA_TRUE;
1023
1024	/*
1025	 * dma map IOC configuration itself
1026	 */
1027	bfi_h2i_set(cfg_req.mh, BFI_MC_IOCFC, BFI_IOCFC_H2I_CFG_REQ,
1028		    bfa_fn_lpu(bfa));
1029	bfa_dma_be_addr_set(cfg_req.ioc_cfg_dma_addr, iocfc->cfg_info.pa);
1030
1031	bfa_ioc_mbox_send(&bfa->ioc, &cfg_req,
1032			  sizeof(struct bfi_iocfc_cfg_req_s));
1033}
1034
1035static void
1036bfa_iocfc_init_mem(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1037		   struct bfa_pcidev_s *pcidev)
1038{
1039	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1040
1041	bfa->bfad = bfad;
1042	iocfc->bfa = bfa;
1043	iocfc->cfg = *cfg;
1044
1045	/*
1046	 * Initialize chip specific handlers.
1047	 */
1048	if (bfa_asic_id_ctc(bfa_ioc_devid(&bfa->ioc))) {
1049		iocfc->hwif.hw_reginit = bfa_hwct_reginit;
1050		iocfc->hwif.hw_reqq_ack = bfa_hwct_reqq_ack;
1051		iocfc->hwif.hw_rspq_ack = bfa_hwct_rspq_ack;
1052		iocfc->hwif.hw_msix_init = bfa_hwct_msix_init;
1053		iocfc->hwif.hw_msix_ctrl_install = bfa_hwct_msix_ctrl_install;
1054		iocfc->hwif.hw_msix_queue_install = bfa_hwct_msix_queue_install;
1055		iocfc->hwif.hw_msix_uninstall = bfa_hwct_msix_uninstall;
1056		iocfc->hwif.hw_isr_mode_set = bfa_hwct_isr_mode_set;
1057		iocfc->hwif.hw_msix_getvecs = bfa_hwct_msix_getvecs;
1058		iocfc->hwif.hw_msix_get_rme_range = bfa_hwct_msix_get_rme_range;
1059		iocfc->hwif.rme_vec_q0 = BFI_MSIX_RME_QMIN_CT;
1060		iocfc->hwif.cpe_vec_q0 = BFI_MSIX_CPE_QMIN_CT;
1061	} else {
1062		iocfc->hwif.hw_reginit = bfa_hwcb_reginit;
1063		iocfc->hwif.hw_reqq_ack = NULL;
1064		iocfc->hwif.hw_rspq_ack = bfa_hwcb_rspq_ack;
1065		iocfc->hwif.hw_msix_init = bfa_hwcb_msix_init;
1066		iocfc->hwif.hw_msix_ctrl_install = bfa_hwcb_msix_ctrl_install;
1067		iocfc->hwif.hw_msix_queue_install = bfa_hwcb_msix_queue_install;
1068		iocfc->hwif.hw_msix_uninstall = bfa_hwcb_msix_uninstall;
1069		iocfc->hwif.hw_isr_mode_set = bfa_hwcb_isr_mode_set;
1070		iocfc->hwif.hw_msix_getvecs = bfa_hwcb_msix_getvecs;
1071		iocfc->hwif.hw_msix_get_rme_range = bfa_hwcb_msix_get_rme_range;
1072		iocfc->hwif.rme_vec_q0 = BFI_MSIX_RME_QMIN_CB +
1073			bfa_ioc_pcifn(&bfa->ioc) * BFI_IOC_MAX_CQS;
1074		iocfc->hwif.cpe_vec_q0 = BFI_MSIX_CPE_QMIN_CB +
1075			bfa_ioc_pcifn(&bfa->ioc) * BFI_IOC_MAX_CQS;
1076	}
1077
1078	if (bfa_asic_id_ct2(bfa_ioc_devid(&bfa->ioc))) {
1079		iocfc->hwif.hw_reginit = bfa_hwct2_reginit;
1080		iocfc->hwif.hw_isr_mode_set = NULL;
1081		iocfc->hwif.hw_rspq_ack = bfa_hwct2_rspq_ack;
1082	}
1083
1084	iocfc->hwif.hw_reginit(bfa);
1085	bfa->msix.nvecs = 0;
1086}
1087
1088static void
1089bfa_iocfc_mem_claim(struct bfa_s *bfa, struct bfa_iocfc_cfg_s *cfg)
1090{
1091	u8	*dm_kva = NULL;
1092	u64	dm_pa = 0;
1093	int	i, per_reqq_sz, per_rspq_sz;
1094	struct bfa_iocfc_s  *iocfc = &bfa->iocfc;
1095	struct bfa_mem_dma_s *ioc_dma = BFA_MEM_IOC_DMA(bfa);
1096	struct bfa_mem_dma_s *iocfc_dma = BFA_MEM_IOCFC_DMA(bfa);
1097	struct bfa_mem_dma_s *reqq_dma, *rspq_dma;
1098
1099	/* First allocate dma memory for IOC */
1100	bfa_ioc_mem_claim(&bfa->ioc, bfa_mem_dma_virt(ioc_dma),
1101			bfa_mem_dma_phys(ioc_dma));
1102
1103	/* Claim DMA-able memory for the request/response queues */
1104	per_reqq_sz = BFA_ROUNDUP((cfg->drvcfg.num_reqq_elems * BFI_LMSG_SZ),
1105				BFA_DMA_ALIGN_SZ);
1106	per_rspq_sz = BFA_ROUNDUP((cfg->drvcfg.num_rspq_elems * BFI_LMSG_SZ),
1107				BFA_DMA_ALIGN_SZ);
1108
1109	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
1110		reqq_dma = BFA_MEM_REQQ_DMA(bfa, i);
1111		iocfc->req_cq_ba[i].kva = bfa_mem_dma_virt(reqq_dma);
1112		iocfc->req_cq_ba[i].pa = bfa_mem_dma_phys(reqq_dma);
1113		memset(iocfc->req_cq_ba[i].kva, 0, per_reqq_sz);
1114
1115		rspq_dma = BFA_MEM_RSPQ_DMA(bfa, i);
1116		iocfc->rsp_cq_ba[i].kva = bfa_mem_dma_virt(rspq_dma);
1117		iocfc->rsp_cq_ba[i].pa = bfa_mem_dma_phys(rspq_dma);
1118		memset(iocfc->rsp_cq_ba[i].kva, 0, per_rspq_sz);
1119	}
1120
1121	/* Claim IOCFC dma memory - for shadow CI/PI */
1122	dm_kva = bfa_mem_dma_virt(iocfc_dma);
1123	dm_pa  = bfa_mem_dma_phys(iocfc_dma);
1124
1125	for (i = 0; i < cfg->fwcfg.num_cqs; i++) {
1126		iocfc->req_cq_shadow_ci[i].kva = dm_kva;
1127		iocfc->req_cq_shadow_ci[i].pa = dm_pa;
1128		dm_kva += BFA_CACHELINE_SZ;
1129		dm_pa += BFA_CACHELINE_SZ;
1130
1131		iocfc->rsp_cq_shadow_pi[i].kva = dm_kva;
1132		iocfc->rsp_cq_shadow_pi[i].pa = dm_pa;
1133		dm_kva += BFA_CACHELINE_SZ;
1134		dm_pa += BFA_CACHELINE_SZ;
1135	}
1136
1137	/* Claim IOCFC dma memory - for the config info page */
1138	bfa->iocfc.cfg_info.kva = dm_kva;
1139	bfa->iocfc.cfg_info.pa = dm_pa;
1140	bfa->iocfc.cfginfo = (struct bfi_iocfc_cfg_s *) dm_kva;
1141	dm_kva += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1142	dm_pa += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1143
1144	/* Claim IOCFC dma memory - for the config response */
1145	bfa->iocfc.cfgrsp_dma.kva = dm_kva;
1146	bfa->iocfc.cfgrsp_dma.pa = dm_pa;
1147	bfa->iocfc.cfgrsp = (struct bfi_iocfc_cfgrsp_s *) dm_kva;
1148	dm_kva += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1149			BFA_CACHELINE_SZ);
1150	dm_pa += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1151			BFA_CACHELINE_SZ);
1152
1153	/* Claim IOCFC kva memory */
1154	bfa_ioc_debug_memclaim(&bfa->ioc, bfa_mem_kva_curp(iocfc));
1155	bfa_mem_kva_curp(iocfc) += BFA_DBG_FWTRC_LEN;
1156}
1157
1158/*
1159 * Start BFA submodules.
1160 */
1161static void
1162bfa_iocfc_start_submod(struct bfa_s *bfa)
1163{
1164	int		i;
1165
1166	bfa->queue_process = BFA_TRUE;
1167	for (i = 0; i < BFI_IOC_MAX_CQS; i++)
1168		bfa_isr_rspq_ack(bfa, i, bfa_rspq_ci(bfa, i));
1169
1170	bfa_fcport_start(bfa);
1171	bfa_uf_start(bfa);
1172	/*
1173	 * bfa_init() with flash read is complete. now invalidate the stale
1174	 * content of lun mask like unit attention, rp tag and lp tag.
1175	 */
1176	bfa_ioim_lm_init(BFA_FCP_MOD(bfa)->bfa);
1177
1178	bfa->iocfc.submod_enabled = BFA_TRUE;
1179}
1180
1181/*
1182 * Disable BFA submodules.
1183 */
1184static void
1185bfa_iocfc_disable_submod(struct bfa_s *bfa)
1186{
1187	if (bfa->iocfc.submod_enabled == BFA_FALSE)
1188		return;
1189
1190	bfa_fcdiag_iocdisable(bfa);
1191	bfa_fcport_iocdisable(bfa);
1192	bfa_fcxp_iocdisable(bfa);
1193	bfa_lps_iocdisable(bfa);
1194	bfa_rport_iocdisable(bfa);
1195	bfa_fcp_iocdisable(bfa);
1196	bfa_dconf_iocdisable(bfa);
1197
1198	bfa->iocfc.submod_enabled = BFA_FALSE;
1199}
1200
1201static void
1202bfa_iocfc_init_cb(void *bfa_arg, bfa_boolean_t complete)
1203{
1204	struct bfa_s	*bfa = bfa_arg;
1205
1206	if (complete)
1207		bfa_cb_init(bfa->bfad, bfa->iocfc.op_status);
1208}
1209
1210static void
1211bfa_iocfc_stop_cb(void *bfa_arg, bfa_boolean_t compl)
1212{
1213	struct bfa_s  *bfa = bfa_arg;
1214	struct bfad_s *bfad = bfa->bfad;
1215
1216	if (compl)
1217		complete(&bfad->comp);
1218}
1219
1220static void
1221bfa_iocfc_enable_cb(void *bfa_arg, bfa_boolean_t compl)
1222{
1223	struct bfa_s	*bfa = bfa_arg;
1224	struct bfad_s *bfad = bfa->bfad;
1225
1226	if (compl)
1227		complete(&bfad->enable_comp);
1228}
1229
1230static void
1231bfa_iocfc_disable_cb(void *bfa_arg, bfa_boolean_t compl)
1232{
1233	struct bfa_s  *bfa = bfa_arg;
1234	struct bfad_s *bfad = bfa->bfad;
1235
1236	if (compl)
1237		complete(&bfad->disable_comp);
1238}
1239
1240/*
1241 * configure queue registers from firmware response
1242 */
1243static void
1244bfa_iocfc_qreg(struct bfa_s *bfa, struct bfi_iocfc_qreg_s *qreg)
1245{
1246	int     i;
1247	struct bfa_iocfc_regs_s *r = &bfa->iocfc.bfa_regs;
1248	void __iomem *kva = bfa_ioc_bar0(&bfa->ioc);
1249
1250	for (i = 0; i < BFI_IOC_MAX_CQS; i++) {
1251		bfa->iocfc.hw_qid[i] = qreg->hw_qid[i];
1252		r->cpe_q_ci[i] = kva + be32_to_cpu(qreg->cpe_q_ci_off[i]);
1253		r->cpe_q_pi[i] = kva + be32_to_cpu(qreg->cpe_q_pi_off[i]);
1254		r->cpe_q_ctrl[i] = kva + be32_to_cpu(qreg->cpe_qctl_off[i]);
1255		r->rme_q_ci[i] = kva + be32_to_cpu(qreg->rme_q_ci_off[i]);
1256		r->rme_q_pi[i] = kva + be32_to_cpu(qreg->rme_q_pi_off[i]);
1257		r->rme_q_ctrl[i] = kva + be32_to_cpu(qreg->rme_qctl_off[i]);
1258	}
1259}
1260
1261static void
1262bfa_iocfc_res_recfg(struct bfa_s *bfa, struct bfa_iocfc_fwcfg_s *fwcfg)
1263{
1264	struct bfa_iocfc_s	*iocfc   = &bfa->iocfc;
1265	struct bfi_iocfc_cfg_s	*cfg_info = iocfc->cfginfo;
1266
1267	bfa_fcxp_res_recfg(bfa, fwcfg->num_fcxp_reqs);
1268	bfa_uf_res_recfg(bfa, fwcfg->num_uf_bufs);
1269	bfa_rport_res_recfg(bfa, fwcfg->num_rports);
1270	bfa_fcp_res_recfg(bfa, cpu_to_be16(cfg_info->num_ioim_reqs),
1271			  fwcfg->num_ioim_reqs);
1272	bfa_tskim_res_recfg(bfa, fwcfg->num_tskim_reqs);
1273}
1274
1275/*
1276 * Update BFA configuration from firmware configuration.
1277 */
1278static void
1279bfa_iocfc_cfgrsp(struct bfa_s *bfa)
1280{
1281	struct bfa_iocfc_s		*iocfc	 = &bfa->iocfc;
1282	struct bfi_iocfc_cfgrsp_s	*cfgrsp	 = iocfc->cfgrsp;
1283	struct bfa_iocfc_fwcfg_s	*fwcfg	 = &cfgrsp->fwcfg;
1284
1285	fwcfg->num_ioim_reqs  = be16_to_cpu(fwcfg->num_ioim_reqs);
1286	fwcfg->num_fwtio_reqs = be16_to_cpu(fwcfg->num_fwtio_reqs);
1287	fwcfg->num_tskim_reqs = be16_to_cpu(fwcfg->num_tskim_reqs);
1288	fwcfg->num_fcxp_reqs  = be16_to_cpu(fwcfg->num_fcxp_reqs);
1289	fwcfg->num_uf_bufs    = be16_to_cpu(fwcfg->num_uf_bufs);
1290	fwcfg->num_rports     = be16_to_cpu(fwcfg->num_rports);
1291
1292	/*
1293	 * configure queue register offsets as learnt from firmware
1294	 */
1295	bfa_iocfc_qreg(bfa, &cfgrsp->qreg);
1296
1297	/*
1298	 * Re-configure resources as learnt from Firmware
1299	 */
1300	bfa_iocfc_res_recfg(bfa, fwcfg);
1301
1302	/*
1303	 * Install MSIX queue handlers
1304	 */
1305	bfa_msix_queue_install(bfa);
1306
1307	if (bfa->iocfc.cfgrsp->pbc_cfg.pbc_pwwn != 0) {
1308		bfa->ioc.attr->pwwn = bfa->iocfc.cfgrsp->pbc_cfg.pbc_pwwn;
1309		bfa->ioc.attr->nwwn = bfa->iocfc.cfgrsp->pbc_cfg.pbc_nwwn;
1310		bfa_fsm_send_event(iocfc, IOCFC_E_CFG_DONE);
1311	}
1312}
1313
1314void
1315bfa_iocfc_reset_queues(struct bfa_s *bfa)
1316{
1317	int		q;
1318
1319	for (q = 0; q < BFI_IOC_MAX_CQS; q++) {
1320		bfa_reqq_ci(bfa, q) = 0;
1321		bfa_reqq_pi(bfa, q) = 0;
1322		bfa_rspq_ci(bfa, q) = 0;
1323		bfa_rspq_pi(bfa, q) = 0;
1324	}
1325}
1326
1327/*
1328 *	Process FAA pwwn msg from fw.
1329 */
1330static void
1331bfa_iocfc_process_faa_addr(struct bfa_s *bfa, struct bfi_faa_addr_msg_s *msg)
1332{
1333	struct bfa_iocfc_s		*iocfc   = &bfa->iocfc;
1334	struct bfi_iocfc_cfgrsp_s	*cfgrsp  = iocfc->cfgrsp;
1335
1336	cfgrsp->pbc_cfg.pbc_pwwn = msg->pwwn;
1337	cfgrsp->pbc_cfg.pbc_nwwn = msg->nwwn;
1338
1339	bfa->ioc.attr->pwwn = msg->pwwn;
1340	bfa->ioc.attr->nwwn = msg->nwwn;
1341	bfa_fsm_send_event(iocfc, IOCFC_E_CFG_DONE);
1342}
1343
1344/* Fabric Assigned Address specific functions */
1345
1346/*
1347 *	Check whether IOC is ready before sending command down
1348 */
1349static bfa_status_t
1350bfa_faa_validate_request(struct bfa_s *bfa)
1351{
1352	enum bfa_ioc_type_e	ioc_type = bfa_get_type(bfa);
1353	u32	card_type = bfa->ioc.attr->card_type;
1354
1355	if (bfa_ioc_is_operational(&bfa->ioc)) {
1356		if ((ioc_type != BFA_IOC_TYPE_FC) || bfa_mfg_is_mezz(card_type))
1357			return BFA_STATUS_FEATURE_NOT_SUPPORTED;
1358	} else {
1359		return BFA_STATUS_IOC_NON_OP;
1360	}
1361
1362	return BFA_STATUS_OK;
1363}
1364
1365bfa_status_t
1366bfa_faa_query(struct bfa_s *bfa, struct bfa_faa_attr_s *attr,
1367		bfa_cb_iocfc_t cbfn, void *cbarg)
1368{
1369	struct bfi_faa_query_s  faa_attr_req;
1370	struct bfa_iocfc_s      *iocfc = &bfa->iocfc;
1371	bfa_status_t            status;
1372
1373	status = bfa_faa_validate_request(bfa);
1374	if (status != BFA_STATUS_OK)
1375		return status;
1376
1377	if (iocfc->faa_args.busy == BFA_TRUE)
1378		return BFA_STATUS_DEVBUSY;
1379
1380	iocfc->faa_args.faa_attr = attr;
1381	iocfc->faa_args.faa_cb.faa_cbfn = cbfn;
1382	iocfc->faa_args.faa_cb.faa_cbarg = cbarg;
1383
1384	iocfc->faa_args.busy = BFA_TRUE;
1385	memset(&faa_attr_req, 0, sizeof(struct bfi_faa_query_s));
1386	bfi_h2i_set(faa_attr_req.mh, BFI_MC_IOCFC,
1387		BFI_IOCFC_H2I_FAA_QUERY_REQ, bfa_fn_lpu(bfa));
1388
1389	bfa_ioc_mbox_send(&bfa->ioc, &faa_attr_req,
1390		sizeof(struct bfi_faa_query_s));
1391
1392	return BFA_STATUS_OK;
1393}
1394
1395/*
1396 *	FAA query response
1397 */
1398static void
1399bfa_faa_query_reply(struct bfa_iocfc_s *iocfc,
1400		bfi_faa_query_rsp_t *rsp)
1401{
1402	void	*cbarg = iocfc->faa_args.faa_cb.faa_cbarg;
1403
1404	if (iocfc->faa_args.faa_attr) {
1405		iocfc->faa_args.faa_attr->faa = rsp->faa;
1406		iocfc->faa_args.faa_attr->faa_state = rsp->faa_status;
1407		iocfc->faa_args.faa_attr->pwwn_source = rsp->addr_source;
1408	}
1409
1410	WARN_ON(!iocfc->faa_args.faa_cb.faa_cbfn);
1411
1412	iocfc->faa_args.faa_cb.faa_cbfn(cbarg, BFA_STATUS_OK);
1413	iocfc->faa_args.busy = BFA_FALSE;
1414}
1415
1416/*
1417 * IOC enable request is complete
1418 */
1419static void
1420bfa_iocfc_enable_cbfn(void *bfa_arg, enum bfa_status status)
1421{
1422	struct bfa_s	*bfa = bfa_arg;
1423
1424	if (status == BFA_STATUS_OK)
1425		bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_ENABLED);
1426	else
1427		bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_FAILED);
1428}
1429
1430/*
1431 * IOC disable request is complete
1432 */
1433static void
1434bfa_iocfc_disable_cbfn(void *bfa_arg)
1435{
1436	struct bfa_s	*bfa = bfa_arg;
1437
1438	bfa->queue_process = BFA_FALSE;
1439	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_DISABLED);
1440}
1441
1442/*
1443 * Notify sub-modules of hardware failure.
1444 */
1445static void
1446bfa_iocfc_hbfail_cbfn(void *bfa_arg)
1447{
1448	struct bfa_s	*bfa = bfa_arg;
1449
1450	bfa->queue_process = BFA_FALSE;
1451	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_IOC_FAILED);
1452}
1453
1454/*
1455 * Actions on chip-reset completion.
1456 */
1457static void
1458bfa_iocfc_reset_cbfn(void *bfa_arg)
1459{
1460	struct bfa_s	*bfa = bfa_arg;
1461
1462	bfa_iocfc_reset_queues(bfa);
1463	bfa_isr_enable(bfa);
1464}
1465
1466/*
1467 * Query IOC memory requirement information.
1468 */
1469void
1470bfa_iocfc_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
1471		  struct bfa_s *bfa)
1472{
1473	int q, per_reqq_sz, per_rspq_sz;
1474	struct bfa_mem_dma_s *ioc_dma = BFA_MEM_IOC_DMA(bfa);
1475	struct bfa_mem_dma_s *iocfc_dma = BFA_MEM_IOCFC_DMA(bfa);
1476	struct bfa_mem_kva_s *iocfc_kva = BFA_MEM_IOCFC_KVA(bfa);
1477	u32	dm_len = 0;
1478
1479	/* dma memory setup for IOC */
1480	bfa_mem_dma_setup(meminfo, ioc_dma,
1481		BFA_ROUNDUP(sizeof(struct bfi_ioc_attr_s), BFA_DMA_ALIGN_SZ));
1482
1483	/* dma memory setup for REQ/RSP queues */
1484	per_reqq_sz = BFA_ROUNDUP((cfg->drvcfg.num_reqq_elems * BFI_LMSG_SZ),
1485				BFA_DMA_ALIGN_SZ);
1486	per_rspq_sz = BFA_ROUNDUP((cfg->drvcfg.num_rspq_elems * BFI_LMSG_SZ),
1487				BFA_DMA_ALIGN_SZ);
1488
1489	for (q = 0; q < cfg->fwcfg.num_cqs; q++) {
1490		bfa_mem_dma_setup(meminfo, BFA_MEM_REQQ_DMA(bfa, q),
1491				per_reqq_sz);
1492		bfa_mem_dma_setup(meminfo, BFA_MEM_RSPQ_DMA(bfa, q),
1493				per_rspq_sz);
1494	}
1495
1496	/* IOCFC dma memory - calculate Shadow CI/PI size */
1497	for (q = 0; q < cfg->fwcfg.num_cqs; q++)
1498		dm_len += (2 * BFA_CACHELINE_SZ);
1499
1500	/* IOCFC dma memory - calculate config info / rsp size */
1501	dm_len += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfg_s), BFA_CACHELINE_SZ);
1502	dm_len += BFA_ROUNDUP(sizeof(struct bfi_iocfc_cfgrsp_s),
1503			BFA_CACHELINE_SZ);
1504
1505	/* dma memory setup for IOCFC */
1506	bfa_mem_dma_setup(meminfo, iocfc_dma, dm_len);
1507
1508	/* kva memory setup for IOCFC */
1509	bfa_mem_kva_setup(meminfo, iocfc_kva, BFA_DBG_FWTRC_LEN);
1510}
1511
1512/*
1513 * Query IOC memory requirement information.
1514 */
1515void
1516bfa_iocfc_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1517		 struct bfa_pcidev_s *pcidev)
1518{
1519	int		i;
1520	struct bfa_ioc_s *ioc = &bfa->ioc;
1521
1522	bfa_iocfc_cbfn.enable_cbfn = bfa_iocfc_enable_cbfn;
1523	bfa_iocfc_cbfn.disable_cbfn = bfa_iocfc_disable_cbfn;
1524	bfa_iocfc_cbfn.hbfail_cbfn = bfa_iocfc_hbfail_cbfn;
1525	bfa_iocfc_cbfn.reset_cbfn = bfa_iocfc_reset_cbfn;
1526
1527	ioc->trcmod = bfa->trcmod;
1528	bfa_ioc_attach(&bfa->ioc, bfa, &bfa_iocfc_cbfn, &bfa->timer_mod);
1529
1530	bfa_ioc_pci_init(&bfa->ioc, pcidev, BFI_PCIFN_CLASS_FC);
1531	bfa_ioc_mbox_register(&bfa->ioc, bfa_mbox_isrs);
1532
1533	bfa_iocfc_init_mem(bfa, bfad, cfg, pcidev);
1534	bfa_iocfc_mem_claim(bfa, cfg);
1535	INIT_LIST_HEAD(&bfa->timer_mod.timer_q);
1536
1537	INIT_LIST_HEAD(&bfa->comp_q);
1538	for (i = 0; i < BFI_IOC_MAX_CQS; i++)
1539		INIT_LIST_HEAD(&bfa->reqq_waitq[i]);
1540
1541	bfa->iocfc.cb_reqd = BFA_FALSE;
1542	bfa->iocfc.op_status = BFA_STATUS_OK;
1543	bfa->iocfc.submod_enabled = BFA_FALSE;
1544
1545	bfa_fsm_set_state(&bfa->iocfc, bfa_iocfc_sm_stopped);
1546}
1547
1548/*
1549 * Query IOC memory requirement information.
1550 */
1551void
1552bfa_iocfc_init(struct bfa_s *bfa)
1553{
1554	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_INIT);
1555}
1556
1557/*
1558 * IOC start called from bfa_start(). Called to start IOC operations
1559 * at driver instantiation for this instance.
1560 */
1561void
1562bfa_iocfc_start(struct bfa_s *bfa)
1563{
1564	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_START);
1565}
1566
1567/*
1568 * IOC stop called from bfa_stop(). Called only when driver is unloaded
1569 * for this instance.
1570 */
1571void
1572bfa_iocfc_stop(struct bfa_s *bfa)
1573{
1574	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_STOP);
1575}
1576
1577void
1578bfa_iocfc_isr(void *bfaarg, struct bfi_mbmsg_s *m)
1579{
1580	struct bfa_s		*bfa = bfaarg;
1581	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1582	union bfi_iocfc_i2h_msg_u	*msg;
1583
1584	msg = (union bfi_iocfc_i2h_msg_u *) m;
1585	bfa_trc(bfa, msg->mh.msg_id);
1586
1587	switch (msg->mh.msg_id) {
1588	case BFI_IOCFC_I2H_CFG_REPLY:
1589		bfa_iocfc_cfgrsp(bfa);
1590		break;
1591	case BFI_IOCFC_I2H_UPDATEQ_RSP:
1592		iocfc->updateq_cbfn(iocfc->updateq_cbarg, BFA_STATUS_OK);
1593		break;
1594	case BFI_IOCFC_I2H_ADDR_MSG:
1595		bfa_iocfc_process_faa_addr(bfa,
1596				(struct bfi_faa_addr_msg_s *)msg);
1597		break;
1598	case BFI_IOCFC_I2H_FAA_QUERY_RSP:
1599		bfa_faa_query_reply(iocfc, (bfi_faa_query_rsp_t *)msg);
1600		break;
1601	default:
1602		WARN_ON(1);
1603	}
1604}
1605
1606void
1607bfa_iocfc_get_attr(struct bfa_s *bfa, struct bfa_iocfc_attr_s *attr)
1608{
1609	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1610
1611	attr->intr_attr.coalesce = iocfc->cfginfo->intr_attr.coalesce;
1612
1613	attr->intr_attr.delay = iocfc->cfginfo->intr_attr.delay ?
1614				be16_to_cpu(iocfc->cfginfo->intr_attr.delay) :
1615				be16_to_cpu(iocfc->cfgrsp->intr_attr.delay);
1616
1617	attr->intr_attr.latency = iocfc->cfginfo->intr_attr.latency ?
1618			be16_to_cpu(iocfc->cfginfo->intr_attr.latency) :
1619			be16_to_cpu(iocfc->cfgrsp->intr_attr.latency);
1620
1621	attr->config	= iocfc->cfg;
1622}
1623
1624bfa_status_t
1625bfa_iocfc_israttr_set(struct bfa_s *bfa, struct bfa_iocfc_intr_attr_s *attr)
1626{
1627	struct bfa_iocfc_s		*iocfc = &bfa->iocfc;
1628	struct bfi_iocfc_set_intr_req_s *m;
1629
1630	iocfc->cfginfo->intr_attr.coalesce = attr->coalesce;
1631	iocfc->cfginfo->intr_attr.delay = cpu_to_be16(attr->delay);
1632	iocfc->cfginfo->intr_attr.latency = cpu_to_be16(attr->latency);
1633
1634	if (!bfa_iocfc_is_operational(bfa))
1635		return BFA_STATUS_OK;
1636
1637	m = bfa_reqq_next(bfa, BFA_REQQ_IOC);
1638	if (!m)
1639		return BFA_STATUS_DEVBUSY;
1640
1641	bfi_h2i_set(m->mh, BFI_MC_IOCFC, BFI_IOCFC_H2I_SET_INTR_REQ,
1642		    bfa_fn_lpu(bfa));
1643	m->coalesce = iocfc->cfginfo->intr_attr.coalesce;
1644	m->delay    = iocfc->cfginfo->intr_attr.delay;
1645	m->latency  = iocfc->cfginfo->intr_attr.latency;
1646
1647	bfa_trc(bfa, attr->delay);
1648	bfa_trc(bfa, attr->latency);
1649
1650	bfa_reqq_produce(bfa, BFA_REQQ_IOC, m->mh);
1651	return BFA_STATUS_OK;
1652}
1653
1654void
1655bfa_iocfc_set_snsbase(struct bfa_s *bfa, int seg_no, u64 snsbase_pa)
1656{
1657	struct bfa_iocfc_s	*iocfc = &bfa->iocfc;
1658
1659	iocfc->cfginfo->sense_buf_len = (BFI_IOIM_SNSLEN - 1);
1660	bfa_dma_be_addr_set(iocfc->cfginfo->ioim_snsbase[seg_no], snsbase_pa);
1661}
1662/*
1663 * Enable IOC after it is disabled.
1664 */
1665void
1666bfa_iocfc_enable(struct bfa_s *bfa)
1667{
1668	bfa_plog_str(bfa->plog, BFA_PL_MID_HAL, BFA_PL_EID_MISC, 0,
1669		     "IOC Enable");
1670	bfa->iocfc.cb_reqd = BFA_TRUE;
1671	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_ENABLE);
1672}
1673
1674void
1675bfa_iocfc_disable(struct bfa_s *bfa)
1676{
1677	bfa_plog_str(bfa->plog, BFA_PL_MID_HAL, BFA_PL_EID_MISC, 0,
1678		     "IOC Disable");
1679
1680	bfa_fsm_send_event(&bfa->iocfc, IOCFC_E_DISABLE);
1681}
1682
1683bfa_boolean_t
1684bfa_iocfc_is_operational(struct bfa_s *bfa)
1685{
1686	return bfa_ioc_is_operational(&bfa->ioc) &&
1687		bfa_fsm_cmp_state(&bfa->iocfc, bfa_iocfc_sm_operational);
1688}
1689
1690/*
1691 * Return boot target port wwns -- read from boot information in flash.
1692 */
1693void
1694bfa_iocfc_get_bootwwns(struct bfa_s *bfa, u8 *nwwns, wwn_t *wwns)
1695{
1696	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
1697	struct bfi_iocfc_cfgrsp_s *cfgrsp = iocfc->cfgrsp;
1698	int i;
1699
1700	if (cfgrsp->pbc_cfg.boot_enabled && cfgrsp->pbc_cfg.nbluns) {
1701		bfa_trc(bfa, cfgrsp->pbc_cfg.nbluns);
1702		*nwwns = cfgrsp->pbc_cfg.nbluns;
1703		for (i = 0; i < cfgrsp->pbc_cfg.nbluns; i++)
1704			wwns[i] = cfgrsp->pbc_cfg.blun[i].tgt_pwwn;
1705
1706		return;
1707	}
1708
1709	*nwwns = cfgrsp->bootwwns.nwwns;
1710	memcpy(wwns, cfgrsp->bootwwns.wwn, sizeof(cfgrsp->bootwwns.wwn));
1711}
1712
1713int
1714bfa_iocfc_get_pbc_vports(struct bfa_s *bfa, struct bfi_pbc_vport_s *pbc_vport)
1715{
1716	struct bfa_iocfc_s *iocfc = &bfa->iocfc;
1717	struct bfi_iocfc_cfgrsp_s *cfgrsp = iocfc->cfgrsp;
1718
1719	memcpy(pbc_vport, cfgrsp->pbc_cfg.vport, sizeof(cfgrsp->pbc_cfg.vport));
1720	return cfgrsp->pbc_cfg.nvports;
1721}
1722
1723
1724/*
1725 * Use this function query the memory requirement of the BFA library.
1726 * This function needs to be called before bfa_attach() to get the
1727 * memory required of the BFA layer for a given driver configuration.
1728 *
1729 * This call will fail, if the cap is out of range compared to pre-defined
1730 * values within the BFA library
1731 *
1732 * @param[in] cfg -	pointer to bfa_ioc_cfg_t. Driver layer should indicate
1733 *			its configuration in this structure.
1734 *			The default values for struct bfa_iocfc_cfg_s can be
1735 *			fetched using bfa_cfg_get_default() API.
1736 *
1737 *			If cap's boundary check fails, the library will use
1738 *			the default bfa_cap_t values (and log a warning msg).
1739 *
1740 * @param[out] meminfo - pointer to bfa_meminfo_t. This content
1741 *			indicates the memory type (see bfa_mem_type_t) and
1742 *			amount of memory required.
1743 *
1744 *			Driver should allocate the memory, populate the
1745 *			starting address for each block and provide the same
1746 *			structure as input parameter to bfa_attach() call.
1747 *
1748 * @param[in] bfa -	pointer to the bfa structure, used while fetching the
1749 *			dma, kva memory information of the bfa sub-modules.
1750 *
1751 * @return void
1752 *
1753 * Special Considerations: @note
1754 */
1755void
1756bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo,
1757		struct bfa_s *bfa)
1758{
1759	struct bfa_mem_dma_s *port_dma = BFA_MEM_PORT_DMA(bfa);
1760	struct bfa_mem_dma_s *ablk_dma = BFA_MEM_ABLK_DMA(bfa);
1761	struct bfa_mem_dma_s *cee_dma = BFA_MEM_CEE_DMA(bfa);
1762	struct bfa_mem_dma_s *sfp_dma = BFA_MEM_SFP_DMA(bfa);
1763	struct bfa_mem_dma_s *flash_dma = BFA_MEM_FLASH_DMA(bfa);
1764	struct bfa_mem_dma_s *diag_dma = BFA_MEM_DIAG_DMA(bfa);
1765	struct bfa_mem_dma_s *phy_dma = BFA_MEM_PHY_DMA(bfa);
1766	struct bfa_mem_dma_s *fru_dma = BFA_MEM_FRU_DMA(bfa);
1767
1768	WARN_ON((cfg == NULL) || (meminfo == NULL));
1769
1770	memset((void *)meminfo, 0, sizeof(struct bfa_meminfo_s));
1771
1772	/* Initialize the DMA & KVA meminfo queues */
1773	INIT_LIST_HEAD(&meminfo->dma_info.qe);
1774	INIT_LIST_HEAD(&meminfo->kva_info.qe);
1775
1776	bfa_iocfc_meminfo(cfg, meminfo, bfa);
1777	bfa_sgpg_meminfo(cfg, meminfo, bfa);
1778	bfa_fcport_meminfo(cfg, meminfo, bfa);
1779	bfa_fcxp_meminfo(cfg, meminfo, bfa);
1780	bfa_lps_meminfo(cfg, meminfo, bfa);
1781	bfa_uf_meminfo(cfg, meminfo, bfa);
1782	bfa_rport_meminfo(cfg, meminfo, bfa);
1783	bfa_fcp_meminfo(cfg, meminfo, bfa);
1784	bfa_dconf_meminfo(cfg, meminfo, bfa);
1785
1786	/* dma info setup */
1787	bfa_mem_dma_setup(meminfo, port_dma, bfa_port_meminfo());
1788	bfa_mem_dma_setup(meminfo, ablk_dma, bfa_ablk_meminfo());
1789	bfa_mem_dma_setup(meminfo, cee_dma, bfa_cee_meminfo());
1790	bfa_mem_dma_setup(meminfo, sfp_dma, bfa_sfp_meminfo());
1791	bfa_mem_dma_setup(meminfo, flash_dma,
1792			  bfa_flash_meminfo(cfg->drvcfg.min_cfg));
1793	bfa_mem_dma_setup(meminfo, diag_dma, bfa_diag_meminfo());
1794	bfa_mem_dma_setup(meminfo, phy_dma,
1795			  bfa_phy_meminfo(cfg->drvcfg.min_cfg));
1796	bfa_mem_dma_setup(meminfo, fru_dma,
1797			  bfa_fru_meminfo(cfg->drvcfg.min_cfg));
1798}
1799
1800/*
1801 * Use this function to do attach the driver instance with the BFA
1802 * library. This function will not trigger any HW initialization
1803 * process (which will be done in bfa_init() call)
1804 *
1805 * This call will fail, if the cap is out of range compared to
1806 * pre-defined values within the BFA library
1807 *
1808 * @param[out]	bfa	Pointer to bfa_t.
1809 * @param[in]	bfad	Opaque handle back to the driver's IOC structure
1810 * @param[in]	cfg	Pointer to bfa_ioc_cfg_t. Should be same structure
1811 *			that was used in bfa_cfg_get_meminfo().
1812 * @param[in]	meminfo	Pointer to bfa_meminfo_t. The driver should
1813 *			use the bfa_cfg_get_meminfo() call to
1814 *			find the memory blocks required, allocate the
1815 *			required memory and provide the starting addresses.
1816 * @param[in]	pcidev	pointer to struct bfa_pcidev_s
1817 *
1818 * @return
1819 * void
1820 *
1821 * Special Considerations:
1822 *
1823 * @note
1824 *
1825 */
1826void
1827bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
1828	       struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
1829{
1830	struct bfa_mem_dma_s *dma_info, *dma_elem;
1831	struct bfa_mem_kva_s *kva_info, *kva_elem;
1832	struct list_head *dm_qe, *km_qe;
1833
1834	bfa->fcs = BFA_FALSE;
1835
1836	WARN_ON((cfg == NULL) || (meminfo == NULL));
1837
1838	/* Initialize memory pointers for iterative allocation */
1839	dma_info = &meminfo->dma_info;
1840	dma_info->kva_curp = dma_info->kva;
1841	dma_info->dma_curp = dma_info->dma;
1842
1843	kva_info = &meminfo->kva_info;
1844	kva_info->kva_curp = kva_info->kva;
1845
1846	list_for_each(dm_qe, &dma_info->qe) {
1847		dma_elem = (struct bfa_mem_dma_s *) dm_qe;
1848		dma_elem->kva_curp = dma_elem->kva;
1849		dma_elem->dma_curp = dma_elem->dma;
1850	}
1851
1852	list_for_each(km_qe, &kva_info->qe) {
1853		kva_elem = (struct bfa_mem_kva_s *) km_qe;
1854		kva_elem->kva_curp = kva_elem->kva;
1855	}
1856
1857	bfa_iocfc_attach(bfa, bfad, cfg, pcidev);
1858	bfa_fcdiag_attach(bfa, bfad, cfg, pcidev);
1859	bfa_sgpg_attach(bfa, bfad, cfg, pcidev);
1860	bfa_fcport_attach(bfa, bfad, cfg, pcidev);
1861	bfa_fcxp_attach(bfa, bfad, cfg, pcidev);
1862	bfa_lps_attach(bfa, bfad, cfg, pcidev);
1863	bfa_uf_attach(bfa, bfad, cfg, pcidev);
1864	bfa_rport_attach(bfa, bfad, cfg, pcidev);
1865	bfa_fcp_attach(bfa, bfad, cfg, pcidev);
1866	bfa_dconf_attach(bfa, bfad, cfg);
1867	bfa_com_port_attach(bfa);
1868	bfa_com_ablk_attach(bfa);
1869	bfa_com_cee_attach(bfa);
1870	bfa_com_sfp_attach(bfa);
1871	bfa_com_flash_attach(bfa, cfg->drvcfg.min_cfg);
1872	bfa_com_diag_attach(bfa);
1873	bfa_com_phy_attach(bfa, cfg->drvcfg.min_cfg);
1874	bfa_com_fru_attach(bfa, cfg->drvcfg.min_cfg);
1875}
1876
1877/*
1878 * Use this function to delete a BFA IOC. IOC should be stopped (by
1879 * calling bfa_stop()) before this function call.
1880 *
1881 * @param[in] bfa - pointer to bfa_t.
1882 *
1883 * @return
1884 * void
1885 *
1886 * Special Considerations:
1887 *
1888 * @note
1889 */
1890void
1891bfa_detach(struct bfa_s *bfa)
1892{
1893	bfa_ioc_detach(&bfa->ioc);
1894}
1895
1896void
1897bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q)
1898{
1899	INIT_LIST_HEAD(comp_q);
1900	list_splice_tail_init(&bfa->comp_q, comp_q);
1901}
1902
1903void
1904bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q)
1905{
1906	struct list_head		*qe;
1907	struct list_head		*qen;
1908	struct bfa_cb_qe_s	*hcb_qe;
1909
1910	list_for_each_safe(qe, qen, comp_q) {
1911		hcb_qe = (struct bfa_cb_qe_s *) qe;
1912		if (hcb_qe->pre_rmv) {
1913			/* qe is invalid after return, dequeue before cbfn() */
1914			list_del(qe);
1915			hcb_qe->cbfn_status(hcb_qe->cbarg, hcb_qe->fw_status);
1916		} else
1917			hcb_qe->cbfn(hcb_qe->cbarg, BFA_TRUE);
1918	}
1919}
1920
1921void
1922bfa_comp_free(struct bfa_s *bfa, struct list_head *comp_q)
1923{
1924	struct list_head		*qe;
1925	struct bfa_cb_qe_s	*hcb_qe;
1926
1927	while (!list_empty(comp_q)) {
1928		bfa_q_deq(comp_q, &qe);
1929		hcb_qe = (struct bfa_cb_qe_s *) qe;
1930		WARN_ON(hcb_qe->pre_rmv);
1931		hcb_qe->cbfn(hcb_qe->cbarg, BFA_FALSE);
1932	}
1933}
1934
1935/*
1936 * Use this function query the default struct bfa_iocfc_cfg_s value (compiled
1937 * into BFA layer). The OS driver can then turn back and overwrite entries that
1938 * have been configured by the user.
1939 *
1940 * @param[in] cfg - pointer to bfa_ioc_cfg_t
1941 *
1942 * @return
1943 *	void
1944 *
1945 * Special Considerations:
1946 * note
1947 */
1948void
1949bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg)
1950{
1951	cfg->fwcfg.num_fabrics = DEF_CFG_NUM_FABRICS;
1952	cfg->fwcfg.num_lports = DEF_CFG_NUM_LPORTS;
1953	cfg->fwcfg.num_rports = DEF_CFG_NUM_RPORTS;
1954	cfg->fwcfg.num_ioim_reqs = DEF_CFG_NUM_IOIM_REQS;
1955	cfg->fwcfg.num_tskim_reqs = DEF_CFG_NUM_TSKIM_REQS;
1956	cfg->fwcfg.num_fcxp_reqs = DEF_CFG_NUM_FCXP_REQS;
1957	cfg->fwcfg.num_uf_bufs = DEF_CFG_NUM_UF_BUFS;
1958	cfg->fwcfg.num_cqs = DEF_CFG_NUM_CQS;
1959	cfg->fwcfg.num_fwtio_reqs = 0;
1960
1961	cfg->drvcfg.num_reqq_elems = DEF_CFG_NUM_REQQ_ELEMS;
1962	cfg->drvcfg.num_rspq_elems = DEF_CFG_NUM_RSPQ_ELEMS;
1963	cfg->drvcfg.num_sgpgs = DEF_CFG_NUM_SGPGS;
1964	cfg->drvcfg.num_sboot_tgts = DEF_CFG_NUM_SBOOT_TGTS;
1965	cfg->drvcfg.num_sboot_luns = DEF_CFG_NUM_SBOOT_LUNS;
1966	cfg->drvcfg.path_tov = BFA_FCPIM_PATHTOV_DEF;
1967	cfg->drvcfg.ioc_recover = BFA_FALSE;
1968	cfg->drvcfg.delay_comp = BFA_FALSE;
1969
1970}
~/ Read-only file preview.