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git.proxmox.com Git - ceph.git/blob - ceph/src/spdk/dpdk/drivers/net/bnxt/bnxt_ring.h
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1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
11 #include <rte_memory.h>
13 #define RING_ADV(ring, idx, n) (((idx) + (n)) & (ring)->ring_mask)
14 #define RING_NEXT(ring, idx) RING_ADV(ring, idx, 1)
16 #define DB_IDX_MASK 0xffffff
17 #define DB_IDX_VALID (0x1 << 26)
18 #define DB_IRQ_DIS (0x1 << 27)
19 #define DB_KEY_TX (0x0 << 28)
20 #define DB_KEY_RX (0x1 << 28)
21 #define DB_KEY_CP (0x2 << 28)
22 #define DB_KEY_ST (0x3 << 28)
23 #define DB_KEY_TX_PUSH (0x4 << 28)
24 #define DB_LONG_TX_PUSH (0x2 << 24)
26 #define DEFAULT_CP_RING_SIZE 256
27 #define DEFAULT_RX_RING_SIZE 256
28 #define DEFAULT_TX_RING_SIZE 256
30 #define AGG_RING_SIZE_FACTOR 2
31 #define AGG_RING_MULTIPLIER 2
33 /* These assume 4k pages */
34 #define MAX_RX_DESC_CNT (8 * 1024)
35 #define MAX_TX_DESC_CNT (4 * 1024)
36 #define MAX_CP_DESC_CNT (16 * 1024)
38 #define INVALID_HW_RING_ID ((uint16_t)-1)
39 #define INVALID_STATS_CTX_ID ((uint16_t)-1)
50 uint16_t fw_ring_id
; /* Ring id filled by Chimp FW */
51 uint16_t fw_rx_ring_id
;
55 struct bnxt_ring_grp_info
{
56 uint16_t fw_stats_ctx
;
58 uint16_t rx_fw_ring_id
;
59 uint16_t cp_fw_ring_id
;
60 uint16_t ag_fw_ring_id
;
64 struct bnxt_tx_ring_info
;
65 struct bnxt_rx_ring_info
;
66 struct bnxt_cp_ring_info
;
67 void bnxt_free_ring(struct bnxt_ring
*ring
);
68 int bnxt_alloc_ring_grps(struct bnxt
*bp
);
69 int bnxt_alloc_rings(struct bnxt
*bp
, uint16_t qidx
,
70 struct bnxt_tx_queue
*txq
,
71 struct bnxt_rx_queue
*rxq
,
72 struct bnxt_cp_ring_info
*cp_ring_info
,
73 struct bnxt_cp_ring_info
*nq_ring_info
,
75 int bnxt_alloc_hwrm_rx_ring(struct bnxt
*bp
, int queue_index
);
76 int bnxt_alloc_hwrm_rings(struct bnxt
*bp
);
77 int bnxt_alloc_async_cp_ring(struct bnxt
*bp
);
78 void bnxt_free_async_cp_ring(struct bnxt
*bp
);
79 int bnxt_alloc_async_ring_struct(struct bnxt
*bp
);
80 int bnxt_alloc_rxtx_nq_ring(struct bnxt
*bp
);
81 void bnxt_free_rxtx_nq_ring(struct bnxt
*bp
);
83 static inline void bnxt_db_write(struct bnxt_db_info
*db
, uint32_t idx
)
86 rte_write64_relaxed(db
->db_key64
| idx
, db
->doorbell
);
88 rte_write32(db
->db_key32
| idx
, db
->doorbell
);
91 /* Ring an NQ doorbell and disable interrupts for the ring. */
92 static inline void bnxt_db_nq(struct bnxt_cp_ring_info
*cpr
)
94 if (unlikely(!cpr
->cp_db
.db_64
))
98 rte_write64(cpr
->cp_db
.db_key64
| DBR_TYPE_NQ
|
99 RING_CMP(cpr
->cp_ring_struct
, cpr
->cp_raw_cons
),
100 cpr
->cp_db
.doorbell
);
103 /* Ring an NQ doorbell and enable interrupts for the ring. */
104 static inline void bnxt_db_nq_arm(struct bnxt_cp_ring_info
*cpr
)
106 if (unlikely(!cpr
->cp_db
.db_64
))
110 rte_write64(cpr
->cp_db
.db_key64
| DBR_TYPE_NQ_ARM
|
111 RING_CMP(cpr
->cp_ring_struct
, cpr
->cp_raw_cons
),
112 cpr
->cp_db
.doorbell
);
115 static inline void bnxt_db_cq(struct bnxt_cp_ring_info
*cpr
)
117 struct bnxt_db_info
*db
= &cpr
->cp_db
;
118 uint32_t idx
= RING_CMP(cpr
->cp_ring_struct
, cpr
->cp_raw_cons
);
122 rte_write64(db
->db_key64
| idx
, db
->doorbell
);
124 B_CP_DIS_DB(cpr
, cpr
->cp_raw_cons
);