14255b3515
Packets destined to the to-be-stopped queue should not be dropped
(neither in HW nor in the driver), so re-program the RSS Table without
this queue on stop and add it back to the table on start unless it
is a Representor VF.
Since 0th entry is used for default ring, use fw_grp_id + 1 to change
the RSS table population logic by programming valid IDs instead of the
default zeroth entry in case of an invalid fw_grp_id.
Destroy and recreate the trio of Rx rings(compl, Rx, AG) every time in
start so that HW is in sync with software.
Fixes: 9b63c6fd70 ("net/bnxt: support Rx/Tx queue start/stop")
Cc: stable@dpdk.org
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Randy Schacher <stuart.schacher@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
77 lines
1.8 KiB
C
77 lines
1.8 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_NEXT(ring, idx) (((idx) + 1) & (ring)->ring_mask)
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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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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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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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#endif
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