3858965c3a
Descriptor fields in CP ring are in little-endian form, convert
to CPU endian before performing arithmetic operations.
Also use more general comparison when checking for ring
index wrap.
Fixes: f2a768d4d1 ("net/bnxt: add completion ring")
Cc: stable@dpdk.org
Signed-off-by: Lance Richardson <lance.richardson@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
94 lines
2.7 KiB
C
94 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_CPR_H_
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#define _BNXT_CPR_H_
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#include <stdbool.h>
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#include <rte_io.h>
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#define CMP_VALID(cmp, raw_cons, ring) \
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(!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) & \
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CMPL_BASE_V) == !((raw_cons) & ((ring)->ring_size)))
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#define CMPL_VALID(cmp, v) \
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(!!(rte_le_to_cpu_32(((struct cmpl_base *)(cmp))->info3_v) & \
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CMPL_BASE_V) == !(v))
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#define CMP_TYPE(cmp) \
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(((struct cmpl_base *)cmp)->type & CMPL_BASE_TYPE_MASK)
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#define ADV_RAW_CMP(idx, n) ((idx) + (n))
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#define NEXT_RAW_CMP(idx) ADV_RAW_CMP(idx, 1)
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#define RING_CMP(ring, idx) ((idx) & (ring)->ring_mask)
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#define RING_CMPL(ring_mask, idx) ((idx) & (ring_mask))
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#define NEXT_CMP(idx) RING_CMP(ADV_RAW_CMP(idx, 1))
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#define FLIP_VALID(cons, mask, val) ((cons) >= (mask) ? !(val) : (val))
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#define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID)
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#define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
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#define NEXT_CMPL(cpr, idx, v, inc) do { \
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(idx) += (inc); \
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if (unlikely((idx) >= (cpr)->cp_ring_struct->ring_size)) { \
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(v) = !(v); \
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(idx) = 0; \
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} \
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} while (0)
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#define B_CP_DB_REARM(cpr, raw_cons) \
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rte_write32((DB_CP_REARM_FLAGS | \
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RING_CMP(((cpr)->cp_ring_struct), raw_cons)), \
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((cpr)->cp_doorbell))
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#define B_CP_DB_ARM(cpr) rte_write32((DB_KEY_CP), ((cpr)->cp_doorbell))
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#define B_CP_DB_DISARM(cpr) (*(uint32_t *)((cpr)->cp_doorbell) = \
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DB_KEY_CP | DB_IRQ_DIS)
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#define B_CP_DB_IDX_ARM(cpr, cons) \
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(*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_REARM_FLAGS | \
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(cons)))
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#define B_CP_DB_IDX_DISARM(cpr, cons) do { \
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rte_smp_wmb(); \
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(*(uint32_t *)((cpr)->cp_doorbell) = (DB_CP_FLAGS | \
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(cons)); \
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} while (0)
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#define B_CP_DIS_DB(cpr, raw_cons) \
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rte_write32((DB_CP_FLAGS | \
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RING_CMP(((cpr)->cp_ring_struct), raw_cons)), \
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((cpr)->cp_doorbell))
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#define B_CP_DB(cpr, raw_cons, ring_mask) \
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rte_write32((DB_CP_FLAGS | \
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RING_CMPL((ring_mask), raw_cons)), \
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((cpr)->cp_doorbell))
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struct bnxt_ring;
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struct bnxt_cp_ring_info {
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uint32_t cp_raw_cons;
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void *cp_doorbell;
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struct cmpl_base *cp_desc_ring;
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rte_iova_t cp_desc_mapping;
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struct ctx_hw_stats *hw_stats;
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rte_iova_t hw_stats_map;
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uint32_t hw_stats_ctx_id;
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struct bnxt_ring *cp_ring_struct;
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uint16_t cp_cons;
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bool valid;
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};
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#define RX_CMP_L2_ERRORS \
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(RX_PKT_CMPL_ERRORS_BUFFER_ERROR_MASK | RX_PKT_CMPL_ERRORS_CRC_ERROR)
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struct bnxt;
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void bnxt_handle_async_event(struct bnxt *bp, struct cmpl_base *cmp);
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void bnxt_handle_fwd_req(struct bnxt *bp, struct cmpl_base *cmp);
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int bnxt_event_hwrm_resp_handler(struct bnxt *bp, struct cmpl_base *cmp);
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#endif
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