drivers/net/bnxt/bnxt_cpr.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 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 #define CMP_VALID(cmp, raw_cons, ring)                                  \
  13         (!!(((struct cmpl_base *)(cmp))->info3_v & CMPL_BASE_V) ==      \
  14          !((raw_cons) & ((ring)->ring_size)))
  15
  16 #define CMPL_VALID(cmp, v)                                              \
  17         (!!(((struct cmpl_base *)(cmp))->info3_v & CMPL_BASE_V) == !(v))
  18
  19 #define CMP_TYPE(cmp)                                           \
  20         (((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
  21
  22 #define ADV_RAW_CMP(idx, n)     ((idx) + (n))
  23 #define NEXT_RAW_CMP(idx)       ADV_RAW_CMP(idx, 1)
  24 #define RING_CMP(ring, idx)     ((idx) & (ring)->ring_mask)
  25 #define RING_CMPL(ring_mask, idx)       ((idx) & (ring_mask))
  26 #define NEXT_CMP(idx)           RING_CMP(ADV_RAW_CMP(idx, 1))
  27 #define FLIP_VALID(cons, mask, val)     ((cons) >= (mask) ? !(val) : (val))
  28
  29 #define DB_CP_REARM_FLAGS       (DB_KEY_CP | DB_IDX_VALID)
  30 #define DB_CP_FLAGS             (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
  31
  32 #define NEXT_CMPL(cpr, idx, v, inc)     do { \
  33         (idx) += (inc); \
  34         if (unlikely((idx) == (cpr)->cp_ring_struct->ring_size)) { \
  35                 (v) = !(v); \
  36                 (idx) = 0; \
  37         } \
  38 } while (0)
  39 #define B_CP_DB_REARM(cpr, raw_cons)                                    \
  40         rte_write32((DB_CP_REARM_FLAGS |                                \
  41                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  42                     ((cpr)->cp_doorbell))
  43
  44 #define B_CP_DB_ARM(cpr)        rte_write32((DB_KEY_CP), ((cpr)->cp_doorbell))
  45 #define B_CP_DB_DISARM(cpr)     (*(uint32_t *)((cpr)->cp_doorbell) = \
  46                                  DB_KEY_CP | DB_IRQ_DIS)
  47
  48 #define B_CP_DB_IDX_ARM(cpr, cons)                                      \
  49                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_REARM_FLAGS | \
  50                                 (cons)))
  51
  52 #define B_CP_DB_IDX_DISARM(cpr, cons)   do {                            \
  53                 rte_smp_wmb();                                          \
  54                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_FLAGS |     \
  55                                 (cons));                                \
  56 } while (0)
  57 #define B_CP_DIS_DB(cpr, raw_cons)                                      \
  58         rte_write32((DB_CP_FLAGS |                                      \
  59                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  60                     ((cpr)->cp_doorbell))
  61 #define B_CP_DB(cpr, raw_cons, ring_mask)                               \
  62         rte_write32((DB_CP_FLAGS |                                      \
  63                     RING_CMPL((ring_mask), raw_cons)),  \
  64                     ((cpr)->cp_doorbell))
  65
  66 struct bnxt_ring;
  67 struct bnxt_cp_ring_info {
  68         uint32_t                cp_raw_cons;
  69         void                    *cp_doorbell;
  70
  71         struct cmpl_base        *cp_desc_ring;
  72
  73         rte_iova_t              cp_desc_mapping;
  74
  75         struct ctx_hw_stats     *hw_stats;
  76         rte_iova_t              hw_stats_map;
  77         uint32_t                hw_stats_ctx_id;
  78
  79         struct bnxt_ring        *cp_ring_struct;
  80         uint16_t                cp_cons;
  81         bool                    valid;
  82 };
  83
  84 #define RX_CMP_L2_ERRORS                                                \
  85         (RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
  86
  87 struct bnxt;
  88 void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
  89 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
  90 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
  91
  92 #endif