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 NEXT_CMP(idx)           RING_CMP(ADV_RAW_CMP(idx, 1))
  26 #define FLIP_VALID(cons, mask, val)     ((cons) >= (mask) ? !(val) : (val))
  27
  28 #define DB_CP_REARM_FLAGS       (DB_KEY_CP | DB_IDX_VALID)
  29 #define DB_CP_FLAGS             (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
  30
  31 #define B_CP_DB_REARM(cpr, raw_cons)                                    \
  32         rte_write32((DB_CP_REARM_FLAGS |                                \
  33                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  34                     ((cpr)->cp_doorbell))
  35
  36 #define B_CP_DB_ARM(cpr)        rte_write32((DB_KEY_CP), ((cpr)->cp_doorbell))
  37 #define B_CP_DB_DISARM(cpr)     (*(uint32_t *)((cpr)->cp_doorbell) = \
  38                                  DB_KEY_CP | DB_IRQ_DIS)
  39
  40 #define B_CP_DB_IDX_ARM(cpr, cons)                                      \
  41                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_REARM_FLAGS | \
  42                                 (cons)))
  43
  44 #define B_CP_DB_IDX_DISARM(cpr, cons)   do {                            \
  45                 rte_smp_wmb();                                          \
  46                 (*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_FLAGS |     \
  47                                 (cons));                                \
  48 } while (0)
  49 #define B_CP_DIS_DB(cpr, raw_cons)                                      \
  50         rte_write32((DB_CP_FLAGS |                                      \
  51                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  52                     ((cpr)->cp_doorbell))
  53
  54 struct bnxt_ring;
  55 struct bnxt_cp_ring_info {
  56         uint32_t                cp_raw_cons;
  57         void                    *cp_doorbell;
  58
  59         struct cmpl_base        *cp_desc_ring;
  60
  61         rte_iova_t              cp_desc_mapping;
  62
  63         struct ctx_hw_stats     *hw_stats;
  64         rte_iova_t              hw_stats_map;
  65         uint32_t                hw_stats_ctx_id;
  66
  67         struct bnxt_ring        *cp_ring_struct;
  68         uint16_t                cp_cons;
  69         bool                    valid;
  70 };
  71
  72 #define RX_CMP_L2_ERRORS                                                \
  73         (RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
  74
  75 struct bnxt;
  76 void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
  77 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
  78 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
  79
  80 #endif