1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2008 Cisco Systems, Inc. All rights reserved. 4 * Copyright 2007 Nuova Systems, Inc. All rights reserved. 5 */ 6 #ifndef _FNIC_H_ 7 #define _FNIC_H_ 8 9 #include <linux/interrupt.h> 10 #include <linux/netdevice.h> 11 #include <linux/workqueue.h> 12 #include <linux/bitops.h> 13 #include <scsi/scsi_cmnd.h> 14 #include <scsi/scsi_transport.h> 15 #include <scsi/scsi_transport_fc.h> 16 #include <scsi/fc_frame.h> 17 #include "fnic_io.h" 18 #include "fnic_res.h" 19 #include "fnic_trace.h" 20 #include "fnic_stats.h" 21 #include "vnic_dev.h" 22 #include "vnic_wq.h" 23 #include "vnic_rq.h" 24 #include "vnic_cq.h" 25 #include "vnic_wq_copy.h" 26 #include "vnic_intr.h" 27 #include "vnic_stats.h" 28 #include "vnic_scsi.h" 29 #include "fnic_fdls.h" 30 31 #define DRV_NAME "fnic" 32 #define DRV_DESCRIPTION "Cisco FCoE HBA Driver" 33 #define DRV_VERSION "1.8.0.0" 34 #define PFX DRV_NAME ": " 35 #define DFX DRV_NAME "%d: " 36 37 #define FABRIC_LOGO_MAX_RETRY 3 38 #define DESC_CLEAN_LOW_WATERMARK 8 39 #define FNIC_UCSM_DFLT_THROTTLE_CNT_BLD 16 /* UCSM default throttle count */ 40 #define FNIC_MIN_IO_REQ 256 /* Min IO throttle count */ 41 #define FNIC_MAX_IO_REQ 1024 /* scsi_cmnd tag map entries */ 42 #define FNIC_DFLT_IO_REQ 256 /* Default scsi_cmnd tag map entries */ 43 #define FNIC_DFLT_QUEUE_DEPTH 256 44 #define FNIC_STATS_RATE_LIMIT 4 /* limit rate at which stats are pulled up */ 45 #define LUN0_DELAY_TIME 9 46 47 /* 48 * Tag bits used for special requests. 49 */ 50 #define FNIC_TAG_ABORT BIT(30) /* tag bit indicating abort */ 51 #define FNIC_TAG_DEV_RST BIT(29) /* indicates device reset */ 52 #define FNIC_TAG_MASK (BIT(24) - 1) /* mask for lookup */ 53 #define FNIC_NO_TAG -1 54 55 /* 56 * Command flags to identify the type of command and for other future 57 * use. 58 */ 59 #define FNIC_NO_FLAGS 0 60 #define FNIC_IO_INITIALIZED BIT(0) 61 #define FNIC_IO_ISSUED BIT(1) 62 #define FNIC_IO_DONE BIT(2) 63 #define FNIC_IO_REQ_NULL BIT(3) 64 #define FNIC_IO_ABTS_PENDING BIT(4) 65 #define FNIC_IO_ABORTED BIT(5) 66 #define FNIC_IO_ABTS_ISSUED BIT(6) 67 #define FNIC_IO_TERM_ISSUED BIT(7) 68 #define FNIC_IO_INTERNAL_TERM_ISSUED BIT(8) 69 #define FNIC_IO_ABT_TERM_DONE BIT(9) 70 #define FNIC_IO_ABT_TERM_REQ_NULL BIT(10) 71 #define FNIC_IO_ABT_TERM_TIMED_OUT BIT(11) 72 #define FNIC_DEVICE_RESET BIT(12) /* Device reset request */ 73 #define FNIC_DEV_RST_ISSUED BIT(13) 74 #define FNIC_DEV_RST_TIMED_OUT BIT(14) 75 #define FNIC_DEV_RST_ABTS_ISSUED BIT(15) 76 #define FNIC_DEV_RST_TERM_ISSUED BIT(16) 77 #define FNIC_DEV_RST_DONE BIT(17) 78 #define FNIC_DEV_RST_REQ_NULL BIT(18) 79 #define FNIC_DEV_RST_ABTS_DONE BIT(19) 80 #define FNIC_DEV_RST_TERM_DONE BIT(20) 81 #define FNIC_DEV_RST_ABTS_PENDING BIT(21) 82 83 #define FNIC_FW_RESET_TIMEOUT 60000 /* mSec */ 84 #define FNIC_FCOE_MAX_CMD_LEN 16 85 /* Retry supported by rport (returned by PRLI service parameters) */ 86 #define FNIC_FC_RP_FLAGS_RETRY 0x1 87 88 /* Cisco vendor id */ 89 #define PCI_VENDOR_ID_CISCO 0x1137 90 #define PCI_DEVICE_ID_CISCO_VIC_FC 0x0045 /* fc vnic */ 91 92 /* sereno pcie switch */ 93 #define PCI_DEVICE_ID_CISCO_SERENO 0x004e 94 #define PCI_DEVICE_ID_CISCO_CRUZ 0x007a /* Cruz */ 95 #define PCI_DEVICE_ID_CISCO_BODEGA 0x0131 /* Bodega */ 96 #define PCI_DEVICE_ID_CISCO_BEVERLY 0x025f /* Beverly */ 97 98 /* Sereno */ 99 #define PCI_SUBDEVICE_ID_CISCO_VASONA 0x004f /* vasona mezz */ 100 #define PCI_SUBDEVICE_ID_CISCO_COTATI 0x0084 /* cotati mlom */ 101 #define PCI_SUBDEVICE_ID_CISCO_LEXINGTON 0x0085 /* lexington pcie */ 102 #define PCI_SUBDEVICE_ID_CISCO_ICEHOUSE 0x00cd /* Icehouse */ 103 #define PCI_SUBDEVICE_ID_CISCO_KIRKWOODLAKE 0x00ce /* KirkwoodLake pcie */ 104 #define PCI_SUBDEVICE_ID_CISCO_SUSANVILLE 0x012e /* Susanville MLOM */ 105 #define PCI_SUBDEVICE_ID_CISCO_TORRANCE 0x0139 /* Torrance MLOM */ 106 107 /* Cruz */ 108 #define PCI_SUBDEVICE_ID_CISCO_CALISTOGA 0x012c /* Calistoga MLOM */ 109 #define PCI_SUBDEVICE_ID_CISCO_MOUNTAINVIEW 0x0137 /* Cruz Mezz */ 110 /* Cruz MountTian SIOC */ 111 #define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN 0x014b 112 #define PCI_SUBDEVICE_ID_CISCO_CLEARLAKE 0x014d /* ClearLake pcie */ 113 /* Cruz MountTian2 SIOC */ 114 #define PCI_SUBDEVICE_ID_CISCO_MOUNTTIAN2 0x0157 115 #define PCI_SUBDEVICE_ID_CISCO_CLAREMONT 0x015d /* Claremont MLOM */ 116 117 /* Bodega */ 118 /* VIC 1457 PCIe mLOM */ 119 #define PCI_SUBDEVICE_ID_CISCO_BRADBURY 0x0218 120 #define PCI_SUBDEVICE_ID_CISCO_BRENTWOOD 0x0217 /* VIC 1455 PCIe */ 121 /* VIC 1487 PCIe mLOM */ 122 #define PCI_SUBDEVICE_ID_CISCO_BURLINGAME 0x021a 123 #define PCI_SUBDEVICE_ID_CISCO_BAYSIDE 0x0219 /* VIC 1485 PCIe */ 124 /* VIC 1440 Mezz mLOM */ 125 #define PCI_SUBDEVICE_ID_CISCO_BAKERSFIELD 0x0215 126 #define PCI_SUBDEVICE_ID_CISCO_BOONVILLE 0x0216 /* VIC 1480 Mezz */ 127 #define PCI_SUBDEVICE_ID_CISCO_BENICIA 0x024a /* VIC 1495 */ 128 #define PCI_SUBDEVICE_ID_CISCO_BEAUMONT 0x024b /* VIC 1497 */ 129 #define PCI_SUBDEVICE_ID_CISCO_BRISBANE 0x02af /* VIC 1467 */ 130 #define PCI_SUBDEVICE_ID_CISCO_BENTON 0x02b0 /* VIC 1477 */ 131 #define PCI_SUBDEVICE_ID_CISCO_TWIN_RIVER 0x02cf /* VIC 14425 */ 132 #define PCI_SUBDEVICE_ID_CISCO_TWIN_PEAK 0x02d0 /* VIC 14825 */ 133 134 /* Beverly */ 135 #define PCI_SUBDEVICE_ID_CISCO_BERN 0x02de /* VIC 15420 */ 136 #define PCI_SUBDEVICE_ID_CISCO_STOCKHOLM 0x02dd /* VIC 15428 */ 137 #define PCI_SUBDEVICE_ID_CISCO_KRAKOW 0x02dc /* VIC 15411 */ 138 #define PCI_SUBDEVICE_ID_CISCO_LUCERNE 0x02db /* VIC 15231 */ 139 #define PCI_SUBDEVICE_ID_CISCO_TURKU 0x02e8 /* VIC 15238 */ 140 #define PCI_SUBDEVICE_ID_CISCO_TURKU_PLUS 0x02f3 /* VIC 15237 */ 141 #define PCI_SUBDEVICE_ID_CISCO_ZURICH 0x02df /* VIC 15230 */ 142 #define PCI_SUBDEVICE_ID_CISCO_RIGA 0x02e0 /* VIC 15427 */ 143 #define PCI_SUBDEVICE_ID_CISCO_GENEVA 0x02e1 /* VIC 15422 */ 144 #define PCI_SUBDEVICE_ID_CISCO_HELSINKI 0x02e4 /* VIC 15235 */ 145 #define PCI_SUBDEVICE_ID_CISCO_GOTHENBURG 0x02f2 /* VIC 15425 */ 146 147 struct fnic_pcie_device { 148 u32 device; 149 u8 *desc; 150 u32 subsystem_device; 151 u8 *subsys_desc; 152 }; 153 154 /* 155 * fnic private data per SCSI command. 156 * These fields are locked by the hashed io_req_lock. 157 */ 158 struct fnic_cmd_priv { 159 struct fnic_io_req *io_req; 160 enum fnic_ioreq_state state; 161 u32 flags; 162 u16 abts_status; 163 u16 lr_status; 164 }; 165 166 static inline struct fnic_cmd_priv *fnic_priv(struct scsi_cmnd *cmd) 167 { 168 return scsi_cmd_priv(cmd); 169 } 170 171 static inline u64 fnic_flags_and_state(struct scsi_cmnd *cmd) 172 { 173 struct fnic_cmd_priv *fcmd = fnic_priv(cmd); 174 175 return ((u64)fcmd->flags << 32) | fcmd->state; 176 } 177 178 #define FCPIO_INVALID_CODE 0x100 /* hdr_status value unused by firmware */ 179 180 #define FNIC_LUN_RESET_TIMEOUT 10000 /* mSec */ 181 #define FNIC_HOST_RESET_TIMEOUT 10000 /* mSec */ 182 #define FNIC_RMDEVICE_TIMEOUT 1000 /* mSec */ 183 #define FNIC_HOST_RESET_SETTLE_TIME 30 /* Sec */ 184 #define FNIC_ABT_TERM_DELAY_TIMEOUT 500 /* mSec */ 185 186 #define FNIC_MAX_FCP_TARGET 256 187 #define FNIC_PCI_OFFSET 2 188 /** 189 * state_flags to identify host state along along with fnic's state 190 **/ 191 #define __FNIC_FLAGS_FWRESET BIT(0) /* fwreset in progress */ 192 #define __FNIC_FLAGS_BLOCK_IO BIT(1) /* IOs are blocked */ 193 194 #define FNIC_FLAGS_NONE (0) 195 #define FNIC_FLAGS_FWRESET (__FNIC_FLAGS_FWRESET | \ 196 __FNIC_FLAGS_BLOCK_IO) 197 198 #define FNIC_FLAGS_IO_BLOCKED (__FNIC_FLAGS_BLOCK_IO) 199 200 #define fnic_set_state_flags(fnicp, st_flags) \ 201 __fnic_set_state_flags(fnicp, st_flags, 0) 202 203 #define fnic_clear_state_flags(fnicp, st_flags) \ 204 __fnic_set_state_flags(fnicp, st_flags, 1) 205 206 enum reset_states { 207 NOT_IN_PROGRESS = 0, 208 IN_PROGRESS, 209 RESET_ERROR 210 }; 211 212 enum rscn_type { 213 NOT_PC_RSCN = 0, 214 PC_RSCN 215 }; 216 217 enum pc_rscn_handling_status { 218 PC_RSCN_HANDLING_NOT_IN_PROGRESS = 0, 219 PC_RSCN_HANDLING_IN_PROGRESS 220 }; 221 222 enum pc_rscn_handling_feature { 223 PC_RSCN_HANDLING_FEATURE_OFF = 0, 224 PC_RSCN_HANDLING_FEATURE_ON 225 }; 226 227 extern unsigned int fnic_fdmi_support; 228 extern unsigned int fnic_log_level; 229 extern unsigned int io_completions; 230 extern struct workqueue_struct *fnic_event_queue; 231 232 extern unsigned int pc_rscn_handling_feature_flag; 233 extern spinlock_t reset_fnic_list_lock; 234 extern struct list_head reset_fnic_list; 235 extern struct workqueue_struct *reset_fnic_work_queue; 236 extern struct work_struct reset_fnic_work; 237 238 239 #define FNIC_MAIN_LOGGING 0x01 240 #define FNIC_FCS_LOGGING 0x02 241 #define FNIC_SCSI_LOGGING 0x04 242 #define FNIC_ISR_LOGGING 0x08 243 244 #define FNIC_CHECK_LOGGING(LEVEL, CMD) \ 245 do { \ 246 if (unlikely(fnic_log_level & LEVEL)) \ 247 do { \ 248 CMD; \ 249 } while (0); \ 250 } while (0) 251 252 #define FNIC_MAIN_DBG(kern_level, host, fnic_num, fmt, args...) \ 253 FNIC_CHECK_LOGGING(FNIC_MAIN_LOGGING, \ 254 shost_printk(kern_level, host, \ 255 "fnic<%d>: %s: %d: " fmt, fnic_num,\ 256 __func__, __LINE__, ##args);) 257 258 #define FNIC_FCS_DBG(kern_level, host, fnic_num, fmt, args...) \ 259 FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \ 260 shost_printk(kern_level, host, \ 261 "fnic<%d>: %s: %d: " fmt, fnic_num,\ 262 __func__, __LINE__, ##args);) 263 264 #define FNIC_FIP_DBG(kern_level, host, fnic_num, fmt, args...) \ 265 FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \ 266 shost_printk(kern_level, host, \ 267 "fnic<%d>: %s: %d: " fmt, fnic_num,\ 268 __func__, __LINE__, ##args);) 269 270 #define FNIC_SCSI_DBG(kern_level, host, fnic_num, fmt, args...) \ 271 FNIC_CHECK_LOGGING(FNIC_SCSI_LOGGING, \ 272 shost_printk(kern_level, host, \ 273 "fnic<%d>: %s: %d: " fmt, fnic_num,\ 274 __func__, __LINE__, ##args);) 275 276 #define FNIC_ISR_DBG(kern_level, host, fnic_num, fmt, args...) \ 277 FNIC_CHECK_LOGGING(FNIC_ISR_LOGGING, \ 278 shost_printk(kern_level, host, \ 279 "fnic<%d>: %s: %d: " fmt, fnic_num,\ 280 __func__, __LINE__, ##args);) 281 282 #define FNIC_MAIN_NOTE(kern_level, host, fmt, args...) \ 283 shost_printk(kern_level, host, fmt, ##args) 284 285 #define FNIC_WQ_COPY_MAX 64 286 #define FNIC_WQ_MAX 1 287 #define FNIC_RQ_MAX 1 288 #define FNIC_CQ_MAX (FNIC_WQ_COPY_MAX + FNIC_WQ_MAX + FNIC_RQ_MAX) 289 #define FNIC_DFLT_IO_COMPLETIONS 256 290 291 #define FNIC_MQ_CQ_INDEX 2 292 293 extern const char *fnic_state_str[]; 294 295 enum fnic_intx_intr_index { 296 FNIC_INTX_WQ_RQ_COPYWQ, 297 FNIC_INTX_DUMMY, 298 FNIC_INTX_NOTIFY, 299 FNIC_INTX_ERR, 300 FNIC_INTX_INTR_MAX, 301 }; 302 303 enum fnic_msix_intr_index { 304 FNIC_MSIX_RQ, 305 FNIC_MSIX_WQ, 306 FNIC_MSIX_WQ_COPY, 307 FNIC_MSIX_ERR_NOTIFY = FNIC_MSIX_WQ_COPY + FNIC_WQ_COPY_MAX, 308 FNIC_MSIX_INTR_MAX, 309 }; 310 311 struct fnic_msix_entry { 312 int requested; 313 char devname[IFNAMSIZ + 11]; 314 irqreturn_t (*isr)(int, void *); 315 void *devid; 316 int irq_num; 317 }; 318 319 enum fnic_state { 320 FNIC_IN_FC_MODE = 0, 321 FNIC_IN_FC_TRANS_ETH_MODE, 322 FNIC_IN_ETH_MODE, 323 FNIC_IN_ETH_TRANS_FC_MODE, 324 }; 325 326 struct mempool; 327 328 enum fnic_role_e { 329 FNIC_ROLE_FCP_INITIATOR = 0, 330 }; 331 332 enum fnic_evt { 333 FNIC_EVT_START_VLAN_DISC = 1, 334 FNIC_EVT_START_FCF_DISC = 2, 335 FNIC_EVT_MAX, 336 }; 337 338 struct fnic_frame_list { 339 /* 340 * Link to frame lists 341 */ 342 struct list_head links; 343 void *fp; 344 int frame_len; 345 int rx_ethhdr_stripped; 346 }; 347 348 struct fnic_event { 349 struct list_head list; 350 struct fnic *fnic; 351 enum fnic_evt event; 352 }; 353 354 struct fnic_cpy_wq { 355 unsigned long hw_lock_flags; 356 u16 active_ioreq_count; 357 u16 ioreq_table_size; 358 ____cacheline_aligned struct fnic_io_req **io_req_table; 359 }; 360 361 /* Per-instance private data structure */ 362 struct fnic { 363 int fnic_num; 364 enum fnic_role_e role; 365 struct fnic_iport_s iport; 366 struct Scsi_Host *host; 367 struct vnic_dev_bar bar0; 368 369 struct fnic_msix_entry msix[FNIC_MSIX_INTR_MAX]; 370 371 struct vnic_stats *stats; 372 unsigned long stats_time; /* time of stats update */ 373 unsigned long stats_reset_time; /* time of stats reset */ 374 struct vnic_nic_cfg *nic_cfg; 375 char name[IFNAMSIZ]; 376 struct timer_list notify_timer; /* used for MSI interrupts */ 377 378 unsigned int fnic_max_tag_id; 379 unsigned int err_intr_offset; 380 unsigned int link_intr_offset; 381 382 unsigned int wq_count; 383 unsigned int cq_count; 384 385 struct completion reset_completion_wait; 386 struct mutex sgreset_mutex; 387 spinlock_t sgreset_lock; /* lock for sgreset */ 388 struct scsi_cmnd *sgreset_sc; 389 struct dentry *fnic_stats_debugfs_host; 390 struct dentry *fnic_stats_debugfs_file; 391 struct dentry *fnic_reset_debugfs_file; 392 unsigned int reset_stats; 393 atomic64_t io_cmpl_skip; 394 struct fnic_stats fnic_stats; 395 396 u32 vlan_hw_insert:1; /* let hw insert the tag */ 397 u32 in_remove:1; /* fnic device in removal */ 398 u32 stop_rx_link_events:1; /* stop proc. rx frames, link events */ 399 400 struct completion *fw_reset_done; 401 u32 reset_in_progress; 402 atomic_t in_flight; /* io counter */ 403 bool internal_reset_inprogress; 404 u32 _reserved; /* fill hole */ 405 unsigned long state_flags; /* protected by host lock */ 406 enum fnic_state state; 407 spinlock_t fnic_lock; 408 unsigned long lock_flags; 409 410 u16 vlan_id; /* VLAN tag including priority */ 411 u8 data_src_addr[ETH_ALEN]; 412 u64 fcp_input_bytes; /* internal statistic */ 413 u64 fcp_output_bytes; /* internal statistic */ 414 u32 link_down_cnt; 415 u32 soft_reset_count; 416 int link_status; 417 418 struct list_head list; 419 struct list_head links; 420 struct pci_dev *pdev; 421 struct vnic_fc_config config; 422 struct vnic_dev *vdev; 423 unsigned int raw_wq_count; 424 unsigned int wq_copy_count; 425 unsigned int rq_count; 426 int fw_ack_index[FNIC_WQ_COPY_MAX]; 427 unsigned short fw_ack_recd[FNIC_WQ_COPY_MAX]; 428 unsigned short wq_copy_desc_low[FNIC_WQ_COPY_MAX]; 429 unsigned int intr_count; 430 u32 __iomem *legacy_pba; 431 struct fnic_host_tag *tags; 432 mempool_t *io_req_pool; 433 mempool_t *io_sgl_pool[FNIC_SGL_NUM_CACHES]; 434 435 unsigned int copy_wq_base; 436 struct work_struct link_work; 437 struct work_struct frame_work; 438 struct work_struct flush_work; 439 struct list_head frame_queue; 440 struct list_head tx_queue; 441 mempool_t *frame_pool; 442 mempool_t *frame_elem_pool; 443 struct work_struct tport_work; 444 struct list_head tport_event_list; 445 446 char subsys_desc[14]; 447 int subsys_desc_len; 448 int pc_rscn_handling_status; 449 450 /*** FIP related data members -- start ***/ 451 void (*set_vlan)(struct fnic *, u16 vlan); 452 struct work_struct fip_frame_work; 453 struct work_struct fip_timer_work; 454 struct list_head fip_frame_queue; 455 struct timer_list fip_timer; 456 spinlock_t vlans_lock; 457 struct timer_list retry_fip_timer; 458 struct timer_list fcs_ka_timer; 459 struct timer_list enode_ka_timer; 460 struct timer_list vn_ka_timer; 461 struct list_head vlan_list; 462 /*** FIP related data members -- end ***/ 463 464 /* copy work queue cache line section */ 465 ____cacheline_aligned struct vnic_wq_copy hw_copy_wq[FNIC_WQ_COPY_MAX]; 466 ____cacheline_aligned struct fnic_cpy_wq sw_copy_wq[FNIC_WQ_COPY_MAX]; 467 468 /* completion queue cache line section */ 469 ____cacheline_aligned struct vnic_cq cq[FNIC_CQ_MAX]; 470 471 spinlock_t wq_copy_lock[FNIC_WQ_COPY_MAX]; 472 473 /* work queue cache line section */ 474 ____cacheline_aligned struct vnic_wq wq[FNIC_WQ_MAX]; 475 spinlock_t wq_lock[FNIC_WQ_MAX]; 476 477 /* receive queue cache line section */ 478 ____cacheline_aligned struct vnic_rq rq[FNIC_RQ_MAX]; 479 480 /* interrupt resource cache line section */ 481 ____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX]; 482 }; 483 484 extern struct workqueue_struct *fnic_event_queue; 485 extern struct workqueue_struct *fnic_fip_queue; 486 extern const struct attribute_group *fnic_host_groups[]; 487 488 void fnic_clear_intr_mode(struct fnic *fnic); 489 int fnic_set_intr_mode(struct fnic *fnic); 490 int fnic_set_intr_mode_msix(struct fnic *fnic); 491 void fnic_free_intr(struct fnic *fnic); 492 int fnic_request_intr(struct fnic *fnic); 493 494 void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf); 495 void fnic_handle_frame(struct work_struct *work); 496 void fnic_tport_event_handler(struct work_struct *work); 497 void fnic_handle_link(struct work_struct *work); 498 void fnic_handle_event(struct work_struct *work); 499 void fdls_reclaim_oxid_handler(struct work_struct *work); 500 void fdls_schedule_oxid_free(struct fnic_iport_s *iport, uint16_t *active_oxid); 501 void fdls_schedule_oxid_free_retry_work(struct work_struct *work); 502 int fnic_rq_cmpl_handler(struct fnic *fnic, int); 503 int fnic_alloc_rq_frame(struct vnic_rq *rq); 504 void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf); 505 void fnic_flush_tx(struct work_struct *work); 506 void fnic_update_mac_locked(struct fnic *, u8 *new); 507 508 int fnic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); 509 int fnic_abort_cmd(struct scsi_cmnd *); 510 int fnic_device_reset(struct scsi_cmnd *); 511 int fnic_eh_host_reset_handler(struct scsi_cmnd *sc); 512 int fnic_host_reset(struct Scsi_Host *shost); 513 void fnic_reset(struct Scsi_Host *shost); 514 int fnic_issue_fc_host_lip(struct Scsi_Host *shost); 515 void fnic_get_host_port_state(struct Scsi_Host *shost); 516 void fnic_scsi_fcpio_reset(struct fnic *fnic); 517 int fnic_wq_copy_cmpl_handler(struct fnic *fnic, int copy_work_to_do, unsigned int cq_index); 518 int fnic_wq_cmpl_handler(struct fnic *fnic, int); 519 int fnic_flogi_reg_handler(struct fnic *fnic, u32); 520 void fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq, 521 struct fcpio_host_req *desc); 522 int fnic_fw_reset_handler(struct fnic *fnic); 523 void fnic_terminate_rport_io(struct fc_rport *); 524 const char *fnic_state_to_str(unsigned int state); 525 void fnic_mq_map_queues_cpus(struct Scsi_Host *host); 526 void fnic_log_q_error(struct fnic *fnic); 527 void fnic_handle_link_event(struct fnic *fnic); 528 int fnic_stats_debugfs_init(struct fnic *fnic); 529 void fnic_stats_debugfs_remove(struct fnic *fnic); 530 int fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *); 531 532 void fnic_handle_fip_frame(struct work_struct *work); 533 void fnic_reset_work_handler(struct work_struct *work); 534 void fnic_handle_fip_event(struct fnic *fnic); 535 void fnic_fcoe_reset_vlans(struct fnic *fnic); 536 extern void fnic_handle_fip_timer(struct timer_list *t); 537 538 static inline int 539 fnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags) 540 { 541 return ((fnic->state_flags & st_flags) == st_flags); 542 } 543 void __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long); 544 void fnic_dump_fchost_stats(struct Scsi_Host *, struct fc_host_statistics *); 545 void fnic_free_txq(struct list_head *head); 546 int fnic_get_desc_by_devid(struct pci_dev *pdev, char **desc, 547 char **subsys_desc); 548 void fnic_fdls_link_status_change(struct fnic *fnic, int linkup); 549 void fnic_delete_fcp_tports(struct fnic *fnic); 550 void fnic_flush_tport_event_list(struct fnic *fnic); 551 int fnic_count_ioreqs_wq(struct fnic *fnic, u32 hwq, u32 portid); 552 unsigned int fnic_count_ioreqs(struct fnic *fnic, u32 portid); 553 unsigned int fnic_count_all_ioreqs(struct fnic *fnic); 554 unsigned int fnic_count_lun_ioreqs_wq(struct fnic *fnic, u32 hwq, 555 struct scsi_device *device); 556 unsigned int fnic_count_lun_ioreqs(struct fnic *fnic, 557 struct scsi_device *device); 558 void fnic_scsi_unload(struct fnic *fnic); 559 void fnic_scsi_unload_cleanup(struct fnic *fnic); 560 int fnic_get_debug_info(struct stats_debug_info *info, 561 struct fnic *fnic); 562 563 struct fnic_scsi_iter_data { 564 struct fnic *fnic; 565 void *data1; 566 void *data2; 567 bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc, 568 void *data1, void *data2); 569 }; 570 571 static inline bool 572 fnic_io_iter_handler(struct scsi_cmnd *sc, void *iter_data) 573 { 574 struct fnic_scsi_iter_data *iter = iter_data; 575 576 return iter->fn(iter->fnic, sc, iter->data1, iter->data2); 577 } 578 579 static inline void 580 fnic_scsi_io_iter(struct fnic *fnic, 581 bool (*fn)(struct fnic *fnic, struct scsi_cmnd *sc, 582 void *data1, void *data2), 583 void *data1, void *data2) 584 { 585 struct fnic_scsi_iter_data iter_data = { 586 .fn = fn, 587 .fnic = fnic, 588 .data1 = data1, 589 .data2 = data2, 590 }; 591 scsi_host_busy_iter(fnic->host, fnic_io_iter_handler, &iter_data); 592 } 593 594 #ifdef FNIC_DEBUG 595 static inline void 596 fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len) 597 { 598 int i; 599 600 for (i = 0; i < len; i = i+8) { 601 FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, 602 "%d: %02x %02x %02x %02x %02x %02x %02x %02x", i / 8, 603 u8arr[i + 0], u8arr[i + 1], u8arr[i + 2], u8arr[i + 3], 604 u8arr[i + 4], u8arr[i + 5], u8arr[i + 6], u8arr[i + 7]); 605 } 606 } 607 608 static inline void 609 fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr, 610 int len, char *pfx) 611 { 612 uint32_t s_id, d_id; 613 614 s_id = ntoh24(fchdr->fh_s_id); 615 d_id = ntoh24(fchdr->fh_d_id); 616 FNIC_FCS_DBG(KERN_DEBUG, fnic->host, fnic->fnic_num, 617 "%s packet contents: sid/did/type/oxid = 0x%x/0x%x/0x%x/0x%x (len = %d)\n", 618 pfx, s_id, d_id, fchdr->fh_type, 619 FNIC_STD_GET_OX_ID(fchdr), len); 620 621 fnic_debug_dump(fnic, (uint8_t *)fchdr, len); 622 623 } 624 #else /* FNIC_DEBUG */ 625 static inline void 626 fnic_debug_dump(struct fnic *fnic, uint8_t *u8arr, int len) {} 627 static inline void 628 fnic_debug_dump_fc_frame(struct fnic *fnic, struct fc_frame_header *fchdr, 629 uint32_t len, char *pfx) {} 630 #endif /* FNIC_DEBUG */ 631 #endif /* _FNIC_H_ */ 632