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_FLUSHING (1 << SFC_RXQ_FLUSHING_BIT)
65 #define SFC_RXQ_FLUSHED (1 << SFC_RXQ_FLUSHED_BIT)
66 SFC_RXQ_FLUSH_FAILED_BIT,
67 #define SFC_RXQ_FLUSH_FAILED (1 << SFC_RXQ_FLUSH_FAILED_BIT)
71 * Receive queue information used on data path.
72 * Allocated on the socket specified on the queue setup.
75 /* Used on data path */
77 struct sfc_rx_sw_desc *sw_desc;
79 unsigned int ptr_mask;
81 unsigned int completed;
88 struct rte_mempool *refill_mb_pool;
92 /* Not used on data path */
93 unsigned int hw_index;
96 static inline unsigned int
97 sfc_rxq_sw_index_by_hw_index(unsigned int hw_index)
102 static inline unsigned int
103 sfc_rxq_sw_index(const struct sfc_rxq *rxq)
105 return sfc_rxq_sw_index_by_hw_index(rxq->hw_index);
109 * Receive queue information used during setup/release only.
110 * Allocated on the same socket as adapter data.
112 struct sfc_rxq_info {
113 unsigned int max_entries;
114 unsigned int entries;
119 int sfc_rx_init(struct sfc_adapter *sa);
120 void sfc_rx_fini(struct sfc_adapter *sa);
121 int sfc_rx_start(struct sfc_adapter *sa);
122 void sfc_rx_stop(struct sfc_adapter *sa);
124 int sfc_rx_qinit(struct sfc_adapter *sa, unsigned int rx_queue_id,
125 uint16_t nb_rx_desc, unsigned int socket_id,
126 const struct rte_eth_rxconf *rx_conf,
127 struct rte_mempool *mb_pool);
128 void sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
129 int sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
130 void sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
132 void sfc_rx_qflush_done(struct sfc_rxq *rxq);
133 void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
138 #endif /* _SFC_RX_H */