drivers/scsi/qedf/qedf.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  QLogic FCoE Offload Driver
   4  *  Copyright (c) 2016-2018 Cavium Inc.
   5  */
   6 #ifndef _QEDFC_H_
   7 #define _QEDFC_H_
   8
   9 #include <scsi/libfcoe.h>
  10 #include <scsi/libfc.h>
  11 #include <scsi/fc/fc_fip.h>
  12 #include <scsi/fc/fc_fc2.h>
  13 #include <scsi/scsi_tcq.h>
  14 #include <scsi/fc_encode.h>
  15 #include <linux/version.h>
  16
  17
  18 /* qedf_hsi.h needs to before included any qed includes */
  19 #include "qedf_hsi.h"
  20
  21 #include <linux/qed/qed_if.h>
  22 #include <linux/qed/qed_fcoe_if.h>
  23 #include <linux/qed/qed_ll2_if.h>
  24 #include "qedf_version.h"
  25 #include "qedf_dbg.h"
  26 #include "drv_fcoe_fw_funcs.h"
  27
  28 /* Helpers to extract upper and lower 32-bits of pointer */
  29 #define U64_HI(val) ((u32)(((u64)(val)) >> 32))
  30 #define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))
  31
  32 #define QEDF_DESCR "QLogic FCoE Offload Driver"
  33 #define QEDF_MODULE_NAME "qedf"
  34
  35 #define QEDF_FLOGI_RETRY_CNT    3
  36 #define QEDF_RPORT_RETRY_CNT    255
  37 #define QEDF_MAX_SESSIONS       1024
  38 #define QEDF_MAX_PAYLOAD        2048
  39 #define QEDF_MAX_BDS_PER_CMD    256
  40 #define QEDF_MAX_BD_LEN         0xffff
  41 #define QEDF_BD_SPLIT_SZ        0x1000
  42 #define QEDF_PAGE_SIZE          4096
  43 #define QED_HW_DMA_BOUNDARY     0xfff
  44 #define QEDF_MAX_SGLEN_FOR_CACHESGL             ((1U << 16) - 1)
  45 #define QEDF_MFS                (QEDF_MAX_PAYLOAD + \
  46         sizeof(struct fc_frame_header))
  47 #define QEDF_MAX_NPIV           64
  48 #define QEDF_TM_TIMEOUT         10
  49 #define QEDF_ABORT_TIMEOUT      (10 * 1000)
  50 #define QEDF_CLEANUP_TIMEOUT    1
  51 #define QEDF_MAX_CDB_LEN        16
  52
  53 #define UPSTREAM_REMOVE         1
  54 #define UPSTREAM_KEEP           1
  55
  56 struct qedf_mp_req {
  57         uint32_t req_len;
  58         void *req_buf;
  59         dma_addr_t req_buf_dma;
  60         struct scsi_sge *mp_req_bd;
  61         dma_addr_t mp_req_bd_dma;
  62         struct fc_frame_header req_fc_hdr;
  63
  64         uint32_t resp_len;
  65         void *resp_buf;
  66         dma_addr_t resp_buf_dma;
  67         struct scsi_sge *mp_resp_bd;
  68         dma_addr_t mp_resp_bd_dma;
  69         struct fc_frame_header resp_fc_hdr;
  70 };
  71
  72 struct qedf_els_cb_arg {
  73         struct qedf_ioreq *aborted_io_req;
  74         struct qedf_ioreq *io_req;
  75         u8 op; /* Used to keep track of ELS op */
  76         uint16_t l2_oxid;
  77         u32 offset; /* Used for sequence cleanup */
  78         u8 r_ctl; /* Used for sequence cleanup */
  79 };
  80
  81 enum qedf_ioreq_event {
  82         QEDF_IOREQ_EV_NONE,
  83         QEDF_IOREQ_EV_ABORT_SUCCESS,
  84         QEDF_IOREQ_EV_ABORT_FAILED,
  85         QEDF_IOREQ_EV_SEND_RRQ,
  86         QEDF_IOREQ_EV_ELS_TMO,
  87         QEDF_IOREQ_EV_ELS_ERR_DETECT,
  88         QEDF_IOREQ_EV_ELS_FLUSH,
  89         QEDF_IOREQ_EV_CLEANUP_SUCCESS,
  90         QEDF_IOREQ_EV_CLEANUP_FAILED,
  91 };
  92
  93 #define FC_GOOD         0
  94 #define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER       (0x1<<2)
  95 #define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER      (0x1<<3)
  96 #define CMD_SCSI_STATUS(Cmnd)                   ((Cmnd)->SCp.Status)
  97 #define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID    (0x1<<0)
  98 #define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID    (0x1<<1)
  99 struct qedf_ioreq {
 100         struct list_head link;
 101         uint16_t xid;
 102         struct scsi_cmnd *sc_cmd;
 103 #define QEDF_SCSI_CMD           1
 104 #define QEDF_TASK_MGMT_CMD      2
 105 #define QEDF_ABTS               3
 106 #define QEDF_ELS                4
 107 #define QEDF_CLEANUP            5
 108 #define QEDF_SEQ_CLEANUP        6
 109         u8 cmd_type;
 110 #define QEDF_CMD_OUTSTANDING            0x0
 111 #define QEDF_CMD_IN_ABORT               0x1
 112 #define QEDF_CMD_IN_CLEANUP             0x2
 113 #define QEDF_CMD_SRR_SENT               0x3
 114 #define QEDF_CMD_DIRTY                  0x4
 115 #define QEDF_CMD_ERR_SCSI_DONE          0x5
 116         u8 io_req_flags;
 117         uint8_t tm_flags;
 118         struct qedf_rport *fcport;
 119 #define QEDF_CMD_ST_INACTIVE            0
 120 #define QEDFC_CMD_ST_IO_ACTIVE          1
 121 #define QEDFC_CMD_ST_ABORT_ACTIVE       2
 122 #define QEDFC_CMD_ST_ABORT_ACTIVE_EH    3
 123 #define QEDFC_CMD_ST_CLEANUP_ACTIVE     4
 124 #define QEDFC_CMD_ST_CLEANUP_ACTIVE_EH  5
 125 #define QEDFC_CMD_ST_RRQ_ACTIVE         6
 126 #define QEDFC_CMD_ST_RRQ_WAIT           7
 127 #define QEDFC_CMD_ST_OXID_RETIRE_WAIT   8
 128 #define QEDFC_CMD_ST_TMF_ACTIVE         9
 129 #define QEDFC_CMD_ST_DRAIN_ACTIVE       10
 130 #define QEDFC_CMD_ST_CLEANED            11
 131 #define QEDFC_CMD_ST_ELS_ACTIVE         12
 132         atomic_t state;
 133         unsigned long flags;
 134         enum qedf_ioreq_event event;
 135         size_t data_xfer_len;
 136         /* ID: 001: Alloc cmd (qedf_alloc_cmd) */
 137         /* ID: 002: Initiate ABTS (qedf_initiate_abts) */
 138         /* ID: 003: For RRQ (qedf_process_abts_compl) */
 139         struct kref refcount;
 140         struct qedf_cmd_mgr *cmd_mgr;
 141         struct io_bdt *bd_tbl;
 142         struct delayed_work timeout_work;
 143         struct completion tm_done;
 144         struct completion abts_done;
 145         struct completion cleanup_done;
 146         struct e4_fcoe_task_context *task;
 147         struct fcoe_task_params *task_params;
 148         struct scsi_sgl_task_params *sgl_task_params;
 149         int idx;
 150         int lun;
 151 /*
 152  * Need to allocate enough room for both sense data and FCP response data
 153  * which has a max length of 8 bytes according to spec.
 154  */
 155 #define QEDF_SCSI_SENSE_BUFFERSIZE      (SCSI_SENSE_BUFFERSIZE + 8)
 156         uint8_t *sense_buffer;
 157         dma_addr_t sense_buffer_dma;
 158         u32 fcp_resid;
 159         u32 fcp_rsp_len;
 160         u32 fcp_sns_len;
 161         u8 cdb_status;
 162         u8 fcp_status;
 163         u8 fcp_rsp_code;
 164         u8 scsi_comp_flags;
 165 #define QEDF_MAX_REUSE          0xfff
 166         u16 reuse_count;
 167         struct qedf_mp_req mp_req;
 168         void (*cb_func)(struct qedf_els_cb_arg *cb_arg);
 169         struct qedf_els_cb_arg *cb_arg;
 170         int fp_idx;
 171         unsigned int cpu;
 172         unsigned int int_cpu;
 173 #define QEDF_IOREQ_UNKNOWN_SGE          1
 174 #define QEDF_IOREQ_SLOW_SGE             2
 175 #define QEDF_IOREQ_FAST_SGE             3
 176         u8 sge_type;
 177         struct delayed_work rrq_work;
 178
 179         /* Used for sequence level recovery; i.e. REC/SRR */
 180         uint32_t rx_buf_off;
 181         uint32_t tx_buf_off;
 182         uint32_t rx_id;
 183         uint32_t task_retry_identifier;
 184
 185         /*
 186          * Used to tell if we need to return a SCSI command
 187          * during some form of error processing.
 188          */
 189         bool return_scsi_cmd_on_abts;
 190
 191         unsigned int alloc;
 192 };
 193
 194 extern struct workqueue_struct *qedf_io_wq;
 195
 196 struct qedf_rport {
 197         spinlock_t rport_lock;
 198 #define QEDF_RPORT_SESSION_READY 1
 199 #define QEDF_RPORT_UPLOADING_CONNECTION 2
 200 #define QEDF_RPORT_IN_RESET 3
 201 #define QEDF_RPORT_IN_LUN_RESET 4
 202 #define QEDF_RPORT_IN_TARGET_RESET 5
 203         unsigned long flags;
 204         int lun_reset_lun;
 205         unsigned long retry_delay_timestamp;
 206         struct fc_rport *rport;
 207         struct fc_rport_priv *rdata;
 208         struct qedf_ctx *qedf;
 209         u32 handle; /* Handle from qed */
 210         u32 fw_cid; /* fw_cid from qed */
 211         void __iomem *p_doorbell;
 212         /* Send queue management */
 213         atomic_t free_sqes;
 214         atomic_t ios_to_queue;
 215         atomic_t num_active_ios;
 216         struct fcoe_wqe *sq;
 217         dma_addr_t sq_dma;
 218         u16 sq_prod_idx;
 219         u16 fw_sq_prod_idx;
 220         u16 sq_con_idx;
 221         u32 sq_mem_size;
 222         void *sq_pbl;
 223         dma_addr_t sq_pbl_dma;
 224         u32 sq_pbl_size;
 225         u32 sid;
 226 #define QEDF_RPORT_TYPE_DISK            0
 227 #define QEDF_RPORT_TYPE_TAPE            1
 228         uint dev_type; /* Disk or tape */
 229         struct list_head peers;
 230 };
 231
 232 /* Used to contain LL2 skb's in ll2_skb_list */
 233 struct qedf_skb_work {
 234         struct work_struct work;
 235         struct sk_buff *skb;
 236         struct qedf_ctx *qedf;
 237 };
 238
 239 struct qedf_fastpath {
 240 #define QEDF_SB_ID_NULL         0xffff
 241         u16             sb_id;
 242         struct qed_sb_info      *sb_info;
 243         struct qedf_ctx *qedf;
 244         /* Keep track of number of completions on this fastpath */
 245         unsigned long completions;
 246         uint32_t cq_num_entries;
 247 };
 248
 249 /* Used to pass fastpath information needed to process CQEs */
 250 struct qedf_io_work {
 251         struct work_struct work;
 252         struct fcoe_cqe cqe;
 253         struct qedf_ctx *qedf;
 254         struct fc_frame *fp;
 255 };
 256
 257 struct qedf_glbl_q_params {
 258         u64     hw_p_cq;        /* Completion queue PBL */
 259         u64     hw_p_rq;        /* Request queue PBL */
 260         u64     hw_p_cmdq;      /* Command queue PBL */
 261 };
 262
 263 struct global_queue {
 264         struct fcoe_cqe *cq;
 265         dma_addr_t cq_dma;
 266         u32 cq_mem_size;
 267         u32 cq_cons_idx; /* Completion queue consumer index */
 268         u32 cq_prod_idx;
 269
 270         void *cq_pbl;
 271         dma_addr_t cq_pbl_dma;
 272         u32 cq_pbl_size;
 273 };
 274
 275 /* I/O tracing entry */
 276 #define QEDF_IO_TRACE_SIZE              2048
 277 struct qedf_io_log {
 278 #define QEDF_IO_TRACE_REQ               0
 279 #define QEDF_IO_TRACE_RSP               1
 280         uint8_t direction;
 281         uint16_t task_id;
 282         uint32_t port_id; /* Remote port fabric ID */
 283         int lun;
 284         unsigned char op; /* SCSI CDB */
 285         uint8_t lba[4];
 286         unsigned int bufflen; /* SCSI buffer length */
 287         unsigned int sg_count; /* Number of SG elements */
 288         int result; /* Result passed back to mid-layer */
 289         unsigned long jiffies; /* Time stamp when I/O logged */
 290         int refcount; /* Reference count for task id */
 291         unsigned int req_cpu; /* CPU that the task is queued on */
 292         unsigned int int_cpu; /* Interrupt CPU that the task is received on */
 293         unsigned int rsp_cpu; /* CPU that task is returned on */
 294         u8 sge_type; /* Did we take the slow, single or fast SGE path */
 295 };
 296
 297 /* Number of entries in BDQ */
 298 #define QEDF_BDQ_SIZE                   256
 299 #define QEDF_BDQ_BUF_SIZE               2072
 300
 301 /* DMA coherent buffers for BDQ */
 302 struct qedf_bdq_buf {
 303         void *buf_addr;
 304         dma_addr_t buf_dma;
 305 };
 306
 307 /* Main adapter struct */
 308 struct qedf_ctx {
 309         struct qedf_dbg_ctx dbg_ctx;
 310         struct fcoe_ctlr ctlr;
 311         struct fc_lport *lport;
 312         u8 data_src_addr[ETH_ALEN];
 313 #define QEDF_LINK_DOWN          0
 314 #define QEDF_LINK_UP            1
 315         atomic_t link_state;
 316 #define QEDF_DCBX_PENDING       0
 317 #define QEDF_DCBX_DONE          1
 318         atomic_t dcbx;
 319 #define QEDF_NULL_VLAN_ID       -1
 320 #define QEDF_FALLBACK_VLAN      1002
 321 #define QEDF_DEFAULT_PRIO       3
 322         int vlan_id;
 323         u8 prio;
 324         struct qed_dev *cdev;
 325         struct qed_dev_fcoe_info dev_info;
 326         struct qed_int_info int_info;
 327         uint16_t last_command;
 328         spinlock_t hba_lock;
 329         struct pci_dev *pdev;
 330         u64 wwnn;
 331         u64 wwpn;
 332         u8 __aligned(16) mac[ETH_ALEN];
 333         struct list_head fcports;
 334         atomic_t num_offloads;
 335         unsigned int curr_conn_id;
 336         struct workqueue_struct *ll2_recv_wq;
 337         struct workqueue_struct *link_update_wq;
 338         struct delayed_work link_update;
 339         struct delayed_work link_recovery;
 340         struct completion flogi_compl;
 341         struct completion fipvlan_compl;
 342
 343         /*
 344          * Used to tell if we're in the window where we are waiting for
 345          * the link to come back up before informting fcoe that the link is
 346          * done.
 347          */
 348         atomic_t link_down_tmo_valid;
 349 #define QEDF_TIMER_INTERVAL             (1 * HZ)
 350         struct timer_list timer; /* One second book keeping timer */
 351 #define QEDF_DRAIN_ACTIVE               1
 352 #define QEDF_LL2_STARTED                2
 353 #define QEDF_UNLOADING                  3
 354 #define QEDF_GRCDUMP_CAPTURE            4
 355 #define QEDF_IN_RECOVERY                5
 356 #define QEDF_DBG_STOP_IO                6
 357         unsigned long flags; /* Miscellaneous state flags */
 358         int fipvlan_retries;
 359         u8 num_queues;
 360         struct global_queue **global_queues;
 361         /* Pointer to array of queue structures */
 362         struct qedf_glbl_q_params *p_cpuq;
 363         /* Physical address of array of queue structures */
 364         dma_addr_t hw_p_cpuq;
 365
 366         struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE];
 367         void *bdq_pbl;
 368         dma_addr_t bdq_pbl_dma;
 369         size_t bdq_pbl_mem_size;
 370         void *bdq_pbl_list;
 371         dma_addr_t bdq_pbl_list_dma;
 372         u8 bdq_pbl_list_num_entries;
 373         void __iomem *bdq_primary_prod;
 374         void __iomem *bdq_secondary_prod;
 375         uint16_t bdq_prod_idx;
 376
 377         /* Structure for holding all the fastpath for this qedf_ctx */
 378         struct qedf_fastpath *fp_array;
 379         struct qed_fcoe_tid tasks;
 380         struct qedf_cmd_mgr *cmd_mgr;
 381         /* Holds the PF parameters we pass to qed to start he FCoE function */
 382         struct qed_pf_params pf_params;
 383         /* Used to time middle path ELS and TM commands */
 384         struct workqueue_struct *timer_work_queue;
 385
 386 #define QEDF_IO_WORK_MIN                64
 387         mempool_t *io_mempool;
 388         struct workqueue_struct *dpc_wq;
 389         struct delayed_work grcdump_work;
 390
 391         u32 slow_sge_ios;
 392         u32 fast_sge_ios;
 393
 394         uint8_t *grcdump;
 395         uint32_t grcdump_size;
 396
 397         struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
 398         spinlock_t io_trace_lock;
 399         uint16_t io_trace_idx;
 400
 401         bool stop_io_on_error;
 402
 403         u32 flogi_cnt;
 404         u32 flogi_failed;
 405
 406         /* Used for fc statistics */
 407         struct mutex stats_mutex;
 408         u64 input_requests;
 409         u64 output_requests;
 410         u64 control_requests;
 411         u64 packet_aborts;
 412         u64 alloc_failures;
 413         u8 lun_resets;
 414         u8 target_resets;
 415         u8 task_set_fulls;
 416         u8 busy;
 417         /* Used for flush routine */
 418         struct mutex flush_mutex;
 419 };
 420
 421 struct io_bdt {
 422         struct qedf_ioreq *io_req;
 423         struct scsi_sge *bd_tbl;
 424         dma_addr_t bd_tbl_dma;
 425         u16 bd_valid;
 426 };
 427
 428 struct qedf_cmd_mgr {
 429         struct qedf_ctx *qedf;
 430         u16 idx;
 431         struct io_bdt **io_bdt_pool;
 432 #define FCOE_PARAMS_NUM_TASKS           2048
 433         struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS];
 434         spinlock_t lock;
 435         atomic_t free_list_cnt;
 436 };
 437
 438 /* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info
 439  * Usage:
 440  *
 441  * void *ptr;
 442  * ptr = qedf_get_task_mem(&qedf->tasks, 128);
 443  */
 444 static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid)
 445 {
 446         return (void *)(info->blocks[tid / info->num_tids_per_block] +
 447                         (tid % info->num_tids_per_block) * info->size);
 448 }
 449
 450 static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
 451 {
 452         set_bit(QEDF_DBG_STOP_IO, &qedf->flags);
 453 }
 454
 455 /*
 456  * Externs
 457  */
 458
 459 /*
 460  * (QEDF_LOG_NPIV | QEDF_LOG_SESS | QEDF_LOG_LPORT | QEDF_LOG_ELS | QEDF_LOG_MQ
 461  * | QEDF_LOG_IO | QEDF_LOG_UNSOL | QEDF_LOG_SCSI_TM | QEDF_LOG_MP_REQ |
 462  * QEDF_LOG_EVT | QEDF_LOG_CONN | QEDF_LOG_DISC | QEDF_LOG_INFO)
 463  */
 464 #define QEDF_DEFAULT_LOG_MASK           0x3CFB6
 465 extern const struct qed_fcoe_ops *qed_ops;
 466 extern uint qedf_dump_frames;
 467 extern uint qedf_io_tracing;
 468 extern uint qedf_stop_io_on_error;
 469 extern uint qedf_link_down_tmo;
 470 #define QEDF_RETRY_DELAY_MAX            20 /* 2 seconds */
 471 extern bool qedf_retry_delay;
 472 extern uint qedf_debug;
 473
 474 extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf);
 475 extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr);
 476 extern int qedf_queuecommand(struct Scsi_Host *host,
 477         struct scsi_cmnd *sc_cmd);
 478 extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
 479 extern u8 *qedf_get_src_mac(struct fc_lport *lport);
 480 extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb);
 481 extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf);
 482 extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
 483         struct qedf_ioreq *io_req);
 484 extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
 485         struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
 486 extern void qedf_process_error_detect(struct qedf_ctx *qedf,
 487         struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
 488 extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
 489 extern void qedf_release_cmd(struct kref *ref);
 490 extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
 491         bool return_scsi_cmd_on_abts);
 492 extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
 493         struct qedf_ioreq *io_req);
 494 extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport,
 495         u8 cmd_type);
 496
 497 extern struct device_attribute *qedf_host_attrs[];
 498 extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
 499         unsigned int timer_msec);
 500 extern int qedf_init_mp_req(struct qedf_ioreq *io_req);
 501 extern void qedf_init_mp_task(struct qedf_ioreq *io_req,
 502         struct e4_fcoe_task_context *task_ctx, struct fcoe_wqe *sqe);
 503 extern u16 qedf_get_sqe_idx(struct qedf_rport *fcport);
 504 extern void qedf_ring_doorbell(struct qedf_rport *fcport);
 505 extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
 506         struct qedf_ioreq *els_req);
 507 extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req);
 508 extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp);
 509 extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
 510         bool return_scsi_cmd_on_abts);
 511 extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
 512         struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
 513 extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
 514 extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
 515         struct qedf_ioreq *io_req);
 516 extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
 517 extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
 518         int result);
 519 extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id);
 520 extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf);
 521 extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf);
 522 extern void qedf_capture_grc_dump(struct qedf_ctx *qedf);
 523 bool qedf_wait_for_upload(struct qedf_ctx *qedf);
 524 extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
 525         struct fcoe_cqe *cqe);
 526 extern void qedf_restart_rport(struct qedf_rport *fcport);
 527 extern int qedf_send_rec(struct qedf_ioreq *orig_io_req);
 528 extern int qedf_post_io_req(struct qedf_rport *fcport,
 529         struct qedf_ioreq *io_req);
 530 extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
 531         struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
 532 extern int qedf_send_flogi(struct qedf_ctx *qedf);
 533 extern void qedf_get_protocol_tlv_data(void *dev, void *data);
 534 extern void qedf_fp_io_handler(struct work_struct *work);
 535 extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data);
 536 extern void qedf_wq_grcdump(struct work_struct *work);
 537 void qedf_stag_change_work(struct work_struct *work);
 538 void qedf_ctx_soft_reset(struct fc_lport *lport);
 539
 540 #define FCOE_WORD_TO_BYTE  4
 541 #define QEDF_MAX_TASK_NUM       0xFFFF
 542
 543 struct fip_vlan {
 544         struct ethhdr eth;
 545         struct fip_header fip;
 546         struct {
 547                 struct fip_mac_desc mac;
 548                 struct fip_wwn_desc wwnn;
 549         } desc;
 550 };
 551
 552 /* SQ/CQ Sizes */
 553 #define GBL_RSVD_TASKS                  16
 554 #define NUM_TASKS_PER_CONNECTION        1024
 555 #define NUM_RW_TASKS_PER_CONNECTION     512
 556 #define FCOE_PARAMS_CQ_NUM_ENTRIES      FCOE_PARAMS_NUM_TASKS
 557
 558 #define FCOE_PARAMS_CMDQ_NUM_ENTRIES    FCOE_PARAMS_NUM_TASKS
 559 #define SQ_NUM_ENTRIES                  NUM_TASKS_PER_CONNECTION
 560
 561 #define QEDF_FCOE_PARAMS_GL_RQ_PI              0
 562 #define QEDF_FCOE_PARAMS_GL_CMD_PI             1
 563
 564 #define QEDF_READ                     (1 << 1)
 565 #define QEDF_WRITE                    (1 << 0)
 566 #define MAX_FIBRE_LUNS                  0xffffffff
 567
 568 #define MIN_NUM_CPUS_MSIX(x)    min_t(u32, x->dev_info.num_cqs, \
 569                                         num_online_cpus())
 570
 571 /*
 572  * PCI function probe defines
 573  */
 574 /* Probe/remove called during normal PCI probe */
 575 #define QEDF_MODE_NORMAL                0
 576 /* Probe/remove called from qed error recovery */
 577 #define QEDF_MODE_RECOVERY              1
 578
 579 #define SUPPORTED_25000baseKR_Full    (1<<27)
 580 #define SUPPORTED_50000baseKR2_Full   (1<<28)
 581 #define SUPPORTED_100000baseKR4_Full  (1<<29)
 582 #define SUPPORTED_100000baseCR4_Full  (1<<30)
 583
 584 #endif