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 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 CMPL_VALID(cmp, v)                                              \
  19         (!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) &    \
  20             CMPL_BASE_V) == !(v))
  21
  22 #define CMP_TYPE(cmp)                                           \
  23         (((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
  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 #define FLIP_VALID(cons, mask, val)     ((cons) >= (mask) ? !(val) : (val))
  31
  32 #define DB_CP_REARM_FLAGS       (DB_KEY_CP | DB_IDX_VALID)
  33 #define DB_CP_FLAGS             (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
  34
  35 #define NEXT_CMPL(cpr, idx, v, inc)     do { \
  36         (idx) += (inc); \
  37         if (unlikely((idx) >= (cpr)->cp_ring_struct->ring_size)) { \
  38                 (v) = !(v); \
  39                 (idx) = 0; \
  40         } \
  41 } while (0)
  42 #define B_CP_DB_REARM(cpr, raw_cons)                                    \
  43         rte_write32((DB_CP_REARM_FLAGS |                                \
  44                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  45                     ((cpr)->cp_db.doorbell))
  46
  47 #define B_CP_DB_ARM(cpr)        rte_write32((DB_KEY_CP),                \
  48                                             ((cpr)->cp_db.doorbell))
  49
  50 #define B_CP_DB_DISARM(cpr)     (*(uint32_t *)((cpr)->cp_db.doorbell) = \
  51                                  DB_KEY_CP | DB_IRQ_DIS)
  52
  53 #define B_CP_DB_IDX_ARM(cpr, cons)                                      \
  54                 (*(uint32_t *)((cpr)->cp_db.doorbell) = (DB_CP_REARM_FLAGS | \
  55                                 (cons)))
  56
  57 #define B_CP_DB_IDX_DISARM(cpr, cons)   do {                            \
  58                 rte_smp_wmb();                                          \
  59                 (*(uint32_t *)((cpr)->cp_db.doorbell) = (DB_CP_FLAGS |  \
  60                                 (cons));                                \
  61 } while (0)
  62 #define B_CP_DIS_DB(cpr, raw_cons)                                      \
  63         rte_write32((DB_CP_FLAGS |                                      \
  64                     RING_CMP(((cpr)->cp_ring_struct), raw_cons)),       \
  65                     ((cpr)->cp_db.doorbell))
  66
  67 #define B_CP_DB(cpr, raw_cons, ring_mask)                               \
  68         rte_write32((DB_CP_FLAGS |                                      \
  69                     RING_CMPL((ring_mask), raw_cons)),  \
  70                     ((cpr)->cp_db.doorbell))
  71
  72 struct bnxt_db_info {
  73         void            *doorbell;
  74         uint32_t        db_key32;
  75 };
  76
  77 struct bnxt_ring;
  78 struct bnxt_cp_ring_info {
  79         uint32_t                cp_raw_cons;
  80
  81         struct cmpl_base        *cp_desc_ring;
  82         struct bnxt_db_info     cp_db;
  83         rte_iova_t              cp_desc_mapping;
  84
  85         struct ctx_hw_stats     *hw_stats;
  86         rte_iova_t              hw_stats_map;
  87         uint32_t                hw_stats_ctx_id;
  88
  89         struct bnxt_ring        *cp_ring_struct;
  90         uint16_t                cp_cons;
  91         bool                    valid;
  92 };
  93
  94 #define RX_CMP_L2_ERRORS                                                \
  95         (RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
  96
  97 struct bnxt;
  98 void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
  99 void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
 100 int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
 101
 102 #endif