2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <rte_mempool.h>
35 #include <rte_ethdev.h>
47 * Software Rx descriptor information associated with hardware Rx
50 struct sfc_rx_sw_desc {
51 struct rte_mbuf *mbuf;
56 /** Receive queue state bits */
57 enum sfc_rxq_state_bit {
58 SFC_RXQ_INITIALIZED_BIT = 0,
59 #define SFC_RXQ_INITIALIZED (1 << SFC_RXQ_INITIALIZED_BIT)
61 #define SFC_RXQ_STARTED (1 << SFC_RXQ_STARTED_BIT)
63 #define SFC_RXQ_RUNNING (1 << SFC_RXQ_RUNNING_BIT)
65 #define SFC_RXQ_FLUSHING (1 << SFC_RXQ_FLUSHING_BIT)
67 #define SFC_RXQ_FLUSHED (1 << SFC_RXQ_FLUSHED_BIT)
68 SFC_RXQ_FLUSH_FAILED_BIT,
69 #define SFC_RXQ_FLUSH_FAILED (1 << SFC_RXQ_FLUSH_FAILED_BIT)
73 * Receive queue information used on data path.
74 * Allocated on the socket specified on the queue setup.
77 /* Used on data path */
79 struct sfc_rx_sw_desc *sw_desc;
81 unsigned int ptr_mask;
83 unsigned int completed;
86 #if EFSYS_OPT_RX_SCALE
88 #define SFC_RXQ_RSS_HASH 0x1
94 unsigned int refill_threshold;
97 struct rte_mempool *refill_mb_pool;
101 /* Not used on data path */
102 unsigned int hw_index;
105 static inline unsigned int
106 sfc_rxq_sw_index_by_hw_index(unsigned int hw_index)
111 static inline unsigned int
112 sfc_rxq_sw_index(const struct sfc_rxq *rxq)
114 return sfc_rxq_sw_index_by_hw_index(rxq->hw_index);
118 * Receive queue information used during setup/release only.
119 * Allocated on the same socket as adapter data.
121 struct sfc_rxq_info {
122 unsigned int max_entries;
123 unsigned int entries;
126 boolean_t deferred_start;
127 boolean_t deferred_started;
130 int sfc_rx_init(struct sfc_adapter *sa);
131 void sfc_rx_fini(struct sfc_adapter *sa);
132 int sfc_rx_start(struct sfc_adapter *sa);
133 void sfc_rx_stop(struct sfc_adapter *sa);
135 int sfc_rx_qinit(struct sfc_adapter *sa, unsigned int rx_queue_id,
136 uint16_t nb_rx_desc, unsigned int socket_id,
137 const struct rte_eth_rxconf *rx_conf,
138 struct rte_mempool *mb_pool);
139 void sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
140 int sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
141 void sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
143 void sfc_rx_qflush_done(struct sfc_rxq *rxq);
144 void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
146 uint16_t sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
149 unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
150 unsigned int sw_index);
151 int sfc_rx_qdesc_done(struct sfc_rxq *rxq, unsigned int offset);
153 #if EFSYS_OPT_RX_SCALE
154 efx_rx_hash_type_t sfc_rte_to_efx_hash_type(uint64_t rss_hf);
155 uint64_t sfc_efx_to_rte_hash_type(efx_rx_hash_type_t efx_hash_types);
161 #endif /* _SFC_RX_H */