f8168ca0e6
This commit adds support to the bnxt PMD for devices based on the BCM57508 "thor" Ethernet controller. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Lance Richardson <lance.richardson@broadcom.com>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2014-2018 Broadcom
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* All rights reserved.
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*/
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#ifndef _BNXT_RING_H_
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#define _BNXT_RING_H_
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#include <inttypes.h>
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#include <rte_memory.h>
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#define RING_ADV(ring, idx, n) (((idx) + (n)) & (ring)->ring_mask)
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#define RING_NEXT(ring, idx) RING_ADV(ring, idx, 1)
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#define DB_IDX_MASK 0xffffff
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#define DB_IDX_VALID (0x1 << 26)
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#define DB_IRQ_DIS (0x1 << 27)
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#define DB_KEY_TX (0x0 << 28)
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#define DB_KEY_RX (0x1 << 28)
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#define DB_KEY_CP (0x2 << 28)
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#define DB_KEY_ST (0x3 << 28)
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#define DB_KEY_TX_PUSH (0x4 << 28)
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#define DB_LONG_TX_PUSH (0x2 << 24)
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#define DEFAULT_CP_RING_SIZE 256
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#define DEFAULT_RX_RING_SIZE 256
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#define DEFAULT_TX_RING_SIZE 256
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#define BNXT_TPA_MAX 64
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#define AGG_RING_SIZE_FACTOR 2
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#define AGG_RING_MULTIPLIER 2
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/* These assume 4k pages */
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#define MAX_RX_DESC_CNT (8 * 1024)
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#define MAX_TX_DESC_CNT (4 * 1024)
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#define MAX_CP_DESC_CNT (16 * 1024)
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#define INVALID_HW_RING_ID ((uint16_t)-1)
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#define INVALID_STATS_CTX_ID ((uint16_t)-1)
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struct bnxt_ring {
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void *bd;
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rte_iova_t bd_dma;
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uint32_t ring_size;
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uint32_t ring_mask;
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int vmem_size;
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void **vmem;
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uint16_t fw_ring_id; /* Ring id filled by Chimp FW */
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uint16_t fw_rx_ring_id;
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const void *mem_zone;
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};
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struct bnxt_ring_grp_info {
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uint16_t fw_stats_ctx;
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uint16_t fw_grp_id;
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uint16_t rx_fw_ring_id;
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uint16_t cp_fw_ring_id;
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uint16_t ag_fw_ring_id;
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};
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struct bnxt;
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struct bnxt_tx_ring_info;
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struct bnxt_rx_ring_info;
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struct bnxt_cp_ring_info;
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void bnxt_free_ring(struct bnxt_ring *ring);
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int bnxt_init_ring_grps(struct bnxt *bp);
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int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
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struct bnxt_tx_queue *txq,
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struct bnxt_rx_queue *rxq,
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struct bnxt_cp_ring_info *cp_ring_info,
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struct bnxt_cp_ring_info *nq_ring_info,
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const char *suffix);
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int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int queue_index);
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int bnxt_alloc_hwrm_rings(struct bnxt *bp);
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static inline void bnxt_db_write(struct bnxt_db_info *db, uint32_t idx)
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{
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if (db->db_64)
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rte_write64_relaxed(db->db_key64 | idx, db->doorbell);
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else
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rte_write32(db->db_key32 | idx, db->doorbell);
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}
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static inline void bnxt_db_nq(struct bnxt_cp_ring_info *cpr)
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{
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struct bnxt_db_info *db = &cpr->cp_db;
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rte_smp_wmb();
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if (likely(db->db_64))
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rte_write64(db->db_key64 | DBR_TYPE_NQ |
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RING_CMP(cpr->cp_ring_struct, cpr->cp_raw_cons),
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db->doorbell);
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}
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static inline void bnxt_db_cq(struct bnxt_cp_ring_info *cpr)
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{
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struct bnxt_db_info *db = &cpr->cp_db;
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uint32_t idx = RING_CMP(cpr->cp_ring_struct, cpr->cp_raw_cons);
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rte_smp_wmb();
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if (db->db_64)
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rte_write64(db->db_key64 | idx, db->doorbell);
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else
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B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
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}
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#endif
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