f7637d4d55
Prepare to fix device reconfigure. Make it clear that corresponding
functions should be called on device configure and close operations.
No functional change.
Fixes: a8e64c6b45 ("net/sfc: implement Rx subsystem stubs")
Cc: stable@dpdk.org
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
181 lines
5.2 KiB
C
181 lines
5.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) 2016-2017 Solarflare Communications Inc.
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* All rights reserved.
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*
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* This software was jointly developed between OKTET Labs (under contract
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* for Solarflare) and Solarflare Communications, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SFC_RX_H
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#define _SFC_RX_H
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#include <rte_mbuf.h>
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#include <rte_mempool.h>
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#include <rte_ethdev.h>
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#include "efx.h"
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#include "sfc_dp_rx.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct sfc_adapter;
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struct sfc_evq;
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/**
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* Software Rx descriptor information associated with hardware Rx
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* descriptor.
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*/
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struct sfc_efx_rx_sw_desc {
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struct rte_mbuf *mbuf;
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unsigned int flags;
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unsigned int size;
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};
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/** Receive queue state bits */
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enum sfc_rxq_state_bit {
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SFC_RXQ_INITIALIZED_BIT = 0,
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#define SFC_RXQ_INITIALIZED (1 << SFC_RXQ_INITIALIZED_BIT)
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SFC_RXQ_STARTED_BIT,
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#define SFC_RXQ_STARTED (1 << SFC_RXQ_STARTED_BIT)
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SFC_RXQ_FLUSHING_BIT,
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#define SFC_RXQ_FLUSHING (1 << SFC_RXQ_FLUSHING_BIT)
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SFC_RXQ_FLUSHED_BIT,
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#define SFC_RXQ_FLUSHED (1 << SFC_RXQ_FLUSHED_BIT)
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SFC_RXQ_FLUSH_FAILED_BIT,
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#define SFC_RXQ_FLUSH_FAILED (1 << SFC_RXQ_FLUSH_FAILED_BIT)
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};
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/**
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* Receive queue control information.
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* Allocated on the socket specified on the queue setup.
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*/
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struct sfc_rxq {
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struct sfc_evq *evq;
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efx_rxq_t *common;
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efsys_mem_t mem;
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unsigned int hw_index;
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unsigned int refill_threshold;
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struct rte_mempool *refill_mb_pool;
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struct sfc_dp_rxq *dp;
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unsigned int state;
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};
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static inline unsigned int
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sfc_rxq_sw_index_by_hw_index(unsigned int hw_index)
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{
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return hw_index;
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}
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static inline unsigned int
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sfc_rxq_sw_index(const struct sfc_rxq *rxq)
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{
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return sfc_rxq_sw_index_by_hw_index(rxq->hw_index);
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}
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struct sfc_rxq *sfc_rxq_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq);
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/**
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* Receive queue information used on libefx-based data path.
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* Allocated on the socket specified on the queue setup.
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*/
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struct sfc_efx_rxq {
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/* Used on data path */
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struct sfc_evq *evq;
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unsigned int flags;
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#define SFC_EFX_RXQ_FLAG_STARTED 0x1
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#define SFC_EFX_RXQ_FLAG_RUNNING 0x2
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#define SFC_EFX_RXQ_FLAG_RSS_HASH 0x4
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unsigned int ptr_mask;
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unsigned int pending;
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unsigned int completed;
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uint16_t batch_max;
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uint16_t prefix_size;
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struct sfc_efx_rx_sw_desc *sw_desc;
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/* Used on refill */
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unsigned int added;
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unsigned int pushed;
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unsigned int refill_threshold;
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uint16_t buf_size;
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struct rte_mempool *refill_mb_pool;
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efx_rxq_t *common;
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/* Datapath receive queue anchor */
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struct sfc_dp_rxq dp;
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};
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static inline struct sfc_efx_rxq *
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sfc_efx_rxq_by_dp_rxq(struct sfc_dp_rxq *dp_rxq)
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{
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return container_of(dp_rxq, struct sfc_efx_rxq, dp);
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}
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/**
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* Receive queue information used during setup/release only.
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* Allocated on the same socket as adapter data.
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*/
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struct sfc_rxq_info {
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unsigned int max_entries;
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unsigned int entries;
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efx_rxq_type_t type;
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struct sfc_rxq *rxq;
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boolean_t deferred_start;
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boolean_t deferred_started;
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};
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int sfc_rx_configure(struct sfc_adapter *sa);
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void sfc_rx_close(struct sfc_adapter *sa);
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int sfc_rx_start(struct sfc_adapter *sa);
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void sfc_rx_stop(struct sfc_adapter *sa);
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int sfc_rx_qinit(struct sfc_adapter *sa, unsigned int rx_queue_id,
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uint16_t nb_rx_desc, unsigned int socket_id,
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const struct rte_eth_rxconf *rx_conf,
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struct rte_mempool *mb_pool);
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void sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
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int sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
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void sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
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void sfc_rx_qflush_done(struct sfc_rxq *rxq);
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void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
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unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
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unsigned int sw_index);
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int sfc_rx_qdesc_done(struct sfc_dp_rxq *dp_rxq, unsigned int offset);
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#if EFSYS_OPT_RX_SCALE
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efx_rx_hash_type_t sfc_rte_to_efx_hash_type(uint64_t rss_hf);
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uint64_t sfc_efx_to_rte_hash_type(efx_rx_hash_type_t efx_hash_types);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SFC_RX_H */
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