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         (!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) &    \
  14             CMPL_BASE_V) == !((raw_cons) & ((ring)->ring_size)))
  15
  16 #define CMPL_VALID(cmp, v)                                              \
  17         (!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) &    \
  18             CMPL_BASE_V) == !(v))
  19
  20 #define CMP_TYPE(cmp)                                           \
  21         (((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
  22
  23 #define ADV_RAW_CMP(idx, n)     ((idx) + (n))
  24 #define NEXT_RAW_CMP(idx)       ADV_RAW_CMP(idx, 1)
  25 #define RING_CMP(ring, idx)     ((idx) & (ring)->ring_mask)
  26 #define RING_CMPL(ring_mask, idx)       ((idx) & (ring_mask))
  27 #define NEXT_CMP(idx)           RING_CMP(ADV_RAW_CMP(idx, 1))
  28 #define FLIP_VALID(cons, mask, val)     ((cons) >= (mask) ? !(val) : (val))
  29
  30 #define DB_CP_REARM_FLAGS       (DB_KEY_CP | DB_IDX_VALID)
  31 #define DB_CP_FLAGS             (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
  32
  33 #define NEXT_CMPL(cpr, idx, v, inc)     do { \
  34         (idx) += (inc); \
  35         if (unlikely((idx) >= (cpr)->cp_ring_struct->ring_size)) { \
  36                 (v) = !(v); \
  37                 (idx) = 0; \
  38         } \
  39 } while (0)
  40 #define B_CP_DB_REARM(cpr, raw_cons)                                    \
  41         rte_write32((DB_CP_REARM_FLAGS |                                \
  42                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  43                     ((cpr)->cp_doorbell))
  44
  45 #define B_CP_DB_ARM(cpr)        rte_write32((DB_KEY_CP), ((cpr)->cp_doorbell))
  46 #define B_CP_DB_DISARM(cpr)     (*(uint32_t *)((cpr)->cp_doorbell) = \
  47                                  DB_KEY_CP | DB_IRQ_DIS)
  48
  49 #define B_CP_DB_IDX_ARM(cpr, cons)                                      \
  50                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_REARM_FLAGS | \
  51                                 (cons)))
  52
  53 #define B_CP_DB_IDX_DISARM(cpr, cons)   do {                            \
  54                 rte_smp_wmb();                                          \
  55                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_FLAGS |     \
  56                                 (cons));                                \
  57 } while (0)
  58 #define B_CP_DIS_DB(cpr, raw_cons)                                      \
  59         rte_write32((DB_CP_FLAGS |                                      \
  60                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  61                     ((cpr)->cp_doorbell))
  62 #define B_CP_DB(cpr, raw_cons, ring_mask)                               \
  63         rte_write32((DB_CP_FLAGS |                                      \
  64                     RING_CMPL((ring_mask), raw_cons)),  \
  65                     ((cpr)->cp_doorbell))
  66
  67 struct bnxt_ring;
  68 struct bnxt_cp_ring_info {
  69         uint32_t                cp_raw_cons;
  70         void                    *cp_doorbell;
  71
  72         struct cmpl_base        *cp_desc_ring;
  73
  74         rte_iova_t              cp_desc_mapping;
  75
  76         struct ctx_hw_stats     *hw_stats;
  77         rte_iova_t              hw_stats_map;
  78         uint32_t                hw_stats_ctx_id;
  79
  80         struct bnxt_ring        *cp_ring_struct;
  81         uint16_t                cp_cons;
  82         bool                    valid;
  83 };
  84
  85 #define RX_CMP_L2_ERRORS                                                \
  86         (RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
  87
  88 struct bnxt;
  89 void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
  90 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
  91 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
  92
  93 #endif