drivers/net/bnxt/bnxt_cpr.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _BNXT_CPR_H_
   7 #define _BNXT_CPR_H_
   8 #include <stdbool.h>
   9
  10 #include <rte_io.h>
  11
  12 struct bnxt_db_info;
  13
  14 #define CMP_VALID(cmp, raw_cons, ring)                                  \
  15         (!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) &    \
  16             CMPL_BASE_V) == !((raw_cons) & ((ring)->ring_size)))
  17
  18 #define CMP_TYPE(cmp)                                           \
  19         (((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
  20
  21 /* Get completion length from completion type, in 16-byte units. */
  22 #define CMP_LEN(cmp_type) (((cmp_type) & 1) + 1)
  23
  24
  25 #define ADV_RAW_CMP(idx, n)     ((idx) + (n))
  26 #define NEXT_RAW_CMP(idx)       ADV_RAW_CMP(idx, 1)
  27 #define RING_CMP(ring, idx)     ((idx) & (ring)->ring_mask)
  28 #define RING_CMPL(ring_mask, idx)       ((idx) & (ring_mask))
  29 #define NEXT_CMP(idx)           RING_CMP(ADV_RAW_CMP(idx, 1))
  30
  31 #define DB_CP_REARM_FLAGS       (DB_KEY_CP | DB_IDX_VALID)
  32 #define DB_CP_FLAGS             (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
  33
  34 #define B_CP_DB_REARM(cpr, raw_cons)                                    \
  35         rte_write32((DB_CP_REARM_FLAGS |                                \
  36                     DB_RING_IDX(&((cpr)->cp_db), raw_cons)),            \
  37                     ((cpr)->cp_db.doorbell))
  38
  39 #define B_CP_DB_ARM(cpr)        rte_write32((DB_KEY_CP),                \
  40                                             ((cpr)->cp_db.doorbell))
  41
  42 #define B_CP_DB_DISARM(cpr)     (*(uint32_t *)((cpr)->cp_db.doorbell) = \
  43                                  DB_KEY_CP | DB_IRQ_DIS)
  44
  45 #define B_CP_DB_IDX_ARM(cpr, cons)                                      \
  46                 (*(uint32_t *)((cpr)->cp_db.doorbell) = (DB_CP_REARM_FLAGS | \
  47                                 (cons)))
  48
  49 #define B_CP_DB_IDX_DISARM(cpr, cons)   do {                            \
  50                 rte_smp_wmb();                                          \
  51                 (*(uint32_t *)((cpr)->cp_db.doorbell) = (DB_CP_FLAGS |  \
  52                                 (cons));                                \
  53 } while (0)
  54 #define B_CP_DIS_DB(cpr, raw_cons)                                      \
  55         rte_write32_relaxed((DB_CP_FLAGS |                              \
  56                     DB_RING_IDX(&((cpr)->cp_db), raw_cons)),            \
  57                     ((cpr)->cp_db.doorbell))
  58
  59 #define B_CP_DB(cpr, raw_cons, ring_mask)                               \
  60         rte_write32((DB_CP_FLAGS |                                      \
  61                     RING_CMPL((ring_mask), raw_cons)),  \
  62                     ((cpr)->cp_db.doorbell))
  63
  64 struct bnxt_db_info {
  65         void                    *doorbell;
  66         union {
  67                 uint64_t        db_key64;
  68                 uint32_t        db_key32;
  69         };
  70         bool                    db_64;
  71         uint32_t                db_ring_mask;
  72         uint32_t                db_epoch_mask;
  73         uint32_t                db_epoch_shift;
  74 };
  75
  76 #define DB_EPOCH(db, idx)       (((idx) & (db)->db_epoch_mask) <<       \
  77                                  ((db)->db_epoch_shift))
  78 #define DB_RING_IDX(db, idx)    (((idx) & (db)->db_ring_mask) |         \
  79                                  DB_EPOCH(db, idx))
  80
  81 struct bnxt_ring;
  82 struct bnxt_cp_ring_info {
  83         uint32_t                cp_raw_cons;
  84
  85         struct cmpl_base        *cp_desc_ring;
  86         struct bnxt_db_info     cp_db;
  87         rte_iova_t              cp_desc_mapping;
  88
  89         struct ctx_hw_stats     *hw_stats;
  90         rte_iova_t              hw_stats_map;
  91         uint32_t                hw_stats_ctx_id;
  92
  93         struct bnxt_ring        *cp_ring_struct;
  94 };
  95
  96 #define RX_CMP_L2_ERRORS                                                \
  97         (RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
  98
  99 struct bnxt;
 100 void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
 101 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
 102 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
 103 void bnxt_dev_reset_and_resume(void *arg);
 104 void bnxt_wait_for_device_shutdown(struct bnxt *bp);
 105
 106 #define EVENT_DATA1_REASON_CODE_FW_EXCEPTION_FATAL     \
 107         HWRM_ASYNC_EVENT_CMPL_RESET_NOTIFY_EVENT_DATA1_REASON_CODE_FW_EXCEPTION_FATAL
 108 #define EVENT_DATA1_REASON_CODE_MASK                   \
 109         HWRM_ASYNC_EVENT_CMPL_RESET_NOTIFY_EVENT_DATA1_REASON_CODE_MASK
 110
 111 #define EVENT_DATA1_FLAGS_MASK                         \
 112         HWRM_ASYNC_EVENT_CMPL_ERROR_RECOVERY_EVENT_DATA1_FLAGS_MASK
 113
 114 #define EVENT_DATA1_FLAGS_MASTER_FUNC                  \
 115         HWRM_ASYNC_EVENT_CMPL_ERROR_RECOVERY_EVENT_DATA1_FLAGS_MASTER_FUNC
 116
 117 #define EVENT_DATA1_FLAGS_RECOVERY_ENABLED             \
 118         HWRM_ASYNC_EVENT_CMPL_ERROR_RECOVERY_EVENT_DATA1_FLAGS_RECOVERY_ENABLED
 119
 120 bool bnxt_is_recovery_enabled(struct bnxt *bp);
 121 bool bnxt_is_master_func(struct bnxt *bp);
 122
 123 void bnxt_stop_rxtx(struct bnxt *bp);
 124 #endif