4 * Copyright (c) 2016-2017 Solarflare Communications Inc.
7 * This software was jointly developed between OKTET Labs (under contract
8 * for Solarflare) and Solarflare Communications, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #include <rte_mempool.h>
37 #include <rte_ethdev.h>
41 #include "sfc_dp_rx.h"
51 * Software Rx descriptor information associated with hardware Rx
54 struct sfc_efx_rx_sw_desc {
55 struct rte_mbuf *mbuf;
60 /** Receive queue state bits */
61 enum sfc_rxq_state_bit {
62 SFC_RXQ_INITIALIZED_BIT = 0,
63 #define SFC_RXQ_INITIALIZED (1 << SFC_RXQ_INITIALIZED_BIT)
65 #define SFC_RXQ_STARTED (1 << SFC_RXQ_STARTED_BIT)
67 #define SFC_RXQ_FLUSHING (1 << SFC_RXQ_FLUSHING_BIT)
69 #define SFC_RXQ_FLUSHED (1 << SFC_RXQ_FLUSHED_BIT)
70 SFC_RXQ_FLUSH_FAILED_BIT,
71 #define SFC_RXQ_FLUSH_FAILED (1 << SFC_RXQ_FLUSH_FAILED_BIT)
75 * Receive queue control information.
76 * Allocated on the socket specified on the queue setup.
82 unsigned int hw_index;
83 unsigned int refill_threshold;
84 struct rte_mempool *refill_mb_pool;
85 struct sfc_dp_rxq *dp;
89 static inline unsigned int
90 sfc_rxq_sw_index_by_hw_index(unsigned int hw_index)
95 static inline unsigned int
96 sfc_rxq_sw_index(const struct sfc_rxq *rxq)
98 return sfc_rxq_sw_index_by_hw_index(rxq->hw_index);
101 struct sfc_rxq *sfc_rxq_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq);
104 * Receive queue information used on libefx-based data path.
105 * Allocated on the socket specified on the queue setup.
108 /* Used on data path */
111 #define SFC_EFX_RXQ_FLAG_STARTED 0x1
112 #define SFC_EFX_RXQ_FLAG_RUNNING 0x2
113 #define SFC_EFX_RXQ_FLAG_RSS_HASH 0x4
114 unsigned int ptr_mask;
115 unsigned int pending;
116 unsigned int completed;
118 uint16_t prefix_size;
119 struct sfc_efx_rx_sw_desc *sw_desc;
124 unsigned int refill_threshold;
126 struct rte_mempool *refill_mb_pool;
129 /* Datapath receive queue anchor */
130 struct sfc_dp_rxq dp;
133 static inline struct sfc_efx_rxq *
134 sfc_efx_rxq_by_dp_rxq(struct sfc_dp_rxq *dp_rxq)
136 return container_of(dp_rxq, struct sfc_efx_rxq, dp);
140 * Receive queue information used during setup/release only.
141 * Allocated on the same socket as adapter data.
143 struct sfc_rxq_info {
144 unsigned int max_entries;
145 unsigned int entries;
148 boolean_t deferred_start;
149 boolean_t deferred_started;
152 int sfc_rx_configure(struct sfc_adapter *sa);
153 void sfc_rx_close(struct sfc_adapter *sa);
154 int sfc_rx_start(struct sfc_adapter *sa);
155 void sfc_rx_stop(struct sfc_adapter *sa);
157 int sfc_rx_qinit(struct sfc_adapter *sa, unsigned int rx_queue_id,
158 uint16_t nb_rx_desc, unsigned int socket_id,
159 const struct rte_eth_rxconf *rx_conf,
160 struct rte_mempool *mb_pool);
161 void sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
162 int sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
163 void sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
165 void sfc_rx_qflush_done(struct sfc_rxq *rxq);
166 void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
168 unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
169 unsigned int sw_index);
170 int sfc_rx_qdesc_done(struct sfc_dp_rxq *dp_rxq, unsigned int offset);
172 #if EFSYS_OPT_RX_SCALE
173 efx_rx_hash_type_t sfc_rte_to_efx_hash_type(uint64_t rss_hf);
174 uint64_t sfc_efx_to_rte_hash_type(efx_rx_hash_type_t efx_hash_types);
180 #endif /* _SFC_RX_H */