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34 #ifndef RTE_PMD_MLX5_RXTX_H_
35 #define RTE_PMD_MLX5_RXTX_H_
41 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
43 #pragma GCC diagnostic ignored "-pedantic"
45 #include <infiniband/verbs.h>
47 #pragma GCC diagnostic error "-pedantic"
50 /* DPDK headers don't like -pedantic. */
52 #pragma GCC diagnostic ignored "-pedantic"
55 #include <rte_mempool.h>
57 #pragma GCC diagnostic error "-pedantic"
60 #include "mlx5_utils.h"
62 #include "mlx5_autoconf.h"
63 #include "mlx5_defs.h"
65 struct mlx5_rxq_stats {
66 unsigned int idx; /**< Mapping index. */
67 #ifdef MLX5_PMD_SOFT_COUNTERS
68 uint64_t ipackets; /**< Total of successfully received packets. */
69 uint64_t ibytes; /**< Total of successfully received bytes. */
71 uint64_t idropped; /**< Total of packets dropped when RX ring full. */
72 uint64_t rx_nombuf; /**< Total of RX mbuf allocation failures. */
75 struct mlx5_txq_stats {
76 unsigned int idx; /**< Mapping index. */
77 #ifdef MLX5_PMD_SOFT_COUNTERS
78 uint64_t opackets; /**< Total of successfully sent packets. */
79 uint64_t obytes; /**< Total of successfully sent bytes. */
81 uint64_t odropped; /**< Total of packets not sent when TX ring full. */
86 struct ibv_sge sge; /* Scatter/Gather Element. */
87 struct rte_mbuf *buf; /* SGE buffer. */
90 /* Flow director queue structure. */
92 struct ibv_qp *qp; /* Associated RX QP. */
93 struct ibv_exp_rwq_ind_table *ind_table; /* Indirection table. */
98 /* RX queue descriptor. */
100 struct priv *priv; /* Back pointer to private data. */
101 struct rte_mempool *mp; /* Memory Pool for allocations. */
102 struct ibv_cq *cq; /* Completion Queue. */
103 struct ibv_exp_wq *wq; /* Work Queue. */
104 int32_t (*poll)(); /* Verbs poll function. */
105 int32_t (*recv)(); /* Verbs receive function. */
106 unsigned int port_id; /* Port ID for incoming packets. */
107 unsigned int elts_n; /* (*elts)[] length. */
108 unsigned int elts_head; /* Current index in (*elts)[]. */
109 unsigned int csum:1; /* Enable checksum offloading. */
110 unsigned int csum_l2tun:1; /* Same for L2 tunnels. */
111 unsigned int vlan_strip:1; /* Enable VLAN stripping. */
112 unsigned int crc_present:1; /* CRC must be subtracted. */
113 struct rxq_elt (*elts)[]; /* RX elements. */
114 unsigned int socket; /* CPU socket ID for allocations. */
115 struct mlx5_rxq_stats stats; /* RX queue counters. */
116 struct ibv_exp_res_domain *rd; /* Resource Domain. */
117 struct fdir_queue fdir_queue; /* Flow director queue. */
118 struct ibv_mr *mr; /* Memory Region (for mp). */
119 struct ibv_exp_wq_family *if_wq; /* WQ burst interface. */
120 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
121 struct ibv_exp_cq_family_v1 *if_cq; /* CQ interface. */
122 #else /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
123 struct ibv_exp_cq_family *if_cq; /* CQ interface. */
124 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
127 /* Hash RX queue types. */
132 #ifdef HAVE_FLOW_SPEC_IPV6
136 #endif /* HAVE_FLOW_SPEC_IPV6 */
140 /* Flow structure with Ethernet specification. It is packed to prevent padding
141 * between attr and spec as this layout is expected by libibverbs. */
142 struct flow_attr_spec_eth {
143 struct ibv_exp_flow_attr attr;
144 struct ibv_exp_flow_spec_eth spec;
145 } __attribute__((packed));
147 /* Define a struct flow_attr_spec_eth object as an array of at least
148 * "size" bytes. Room after the first index is normally used to store
149 * extra flow specifications. */
150 #define FLOW_ATTR_SPEC_ETH(name, size) \
151 struct flow_attr_spec_eth name \
152 [((size) / sizeof(struct flow_attr_spec_eth)) + \
153 !!((size) % sizeof(struct flow_attr_spec_eth))]
155 /* Initialization data for hash RX queue. */
156 struct hash_rxq_init {
157 uint64_t hash_fields; /* Fields that participate in the hash. */
158 uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */
159 unsigned int flow_priority; /* Flow priority to use. */
162 enum ibv_exp_flow_spec_type type;
165 struct ibv_exp_flow_spec_tcp_udp tcp_udp;
166 struct ibv_exp_flow_spec_ipv4 ipv4;
167 #ifdef HAVE_FLOW_SPEC_IPV6
168 struct ibv_exp_flow_spec_ipv6 ipv6;
169 #endif /* HAVE_FLOW_SPEC_IPV6 */
170 struct ibv_exp_flow_spec_eth eth;
171 } flow_spec; /* Flow specification template. */
172 const struct hash_rxq_init *underlayer; /* Pointer to underlayer. */
175 /* Initialization data for indirection table. */
176 struct ind_table_init {
177 unsigned int max_size; /* Maximum number of WQs. */
178 /* Hash RX queues using this table. */
179 unsigned int hash_types;
180 unsigned int hash_types_n;
183 /* Initialization data for special flows. */
184 struct special_flow_init {
185 uint8_t dst_mac_val[6];
186 uint8_t dst_mac_mask[6];
187 unsigned int hash_types;
188 unsigned int per_vlan:1;
191 enum hash_rxq_flow_type {
192 HASH_RXQ_FLOW_TYPE_PROMISC,
193 HASH_RXQ_FLOW_TYPE_ALLMULTI,
194 HASH_RXQ_FLOW_TYPE_BROADCAST,
195 HASH_RXQ_FLOW_TYPE_IPV6MULTI,
196 HASH_RXQ_FLOW_TYPE_MAC,
200 static inline const char *
201 hash_rxq_flow_type_str(enum hash_rxq_flow_type flow_type)
204 case HASH_RXQ_FLOW_TYPE_PROMISC:
205 return "promiscuous";
206 case HASH_RXQ_FLOW_TYPE_ALLMULTI:
207 return "allmulticast";
208 case HASH_RXQ_FLOW_TYPE_BROADCAST:
210 case HASH_RXQ_FLOW_TYPE_IPV6MULTI:
211 return "IPv6 multicast";
212 case HASH_RXQ_FLOW_TYPE_MAC:
220 struct priv *priv; /* Back pointer to private data. */
221 struct ibv_qp *qp; /* Hash RX QP. */
222 enum hash_rxq_type type; /* Hash RX queue type. */
223 /* MAC flow steering rules, one per VLAN ID. */
224 struct ibv_exp_flow *mac_flow
225 [MLX5_MAX_MAC_ADDRESSES][MLX5_MAX_VLAN_IDS];
226 struct ibv_exp_flow *special_flow
227 [MLX5_MAX_SPECIAL_FLOWS][MLX5_MAX_VLAN_IDS];
232 struct rte_mbuf *buf;
235 /* TX queue descriptor. */
237 struct priv *priv; /* Back pointer to private data. */
238 int32_t (*poll_cnt)(struct ibv_cq *cq, uint32_t max);
239 int (*send_pending)();
240 #ifdef HAVE_VERBS_VLAN_INSERTION
241 int (*send_pending_vlan)();
243 int (*send_flush)(struct ibv_qp *qp);
244 struct ibv_cq *cq; /* Completion Queue. */
245 struct ibv_qp *qp; /* Queue Pair. */
246 struct txq_elt (*elts)[]; /* TX elements. */
247 unsigned int elts_n; /* (*elts)[] length. */
248 unsigned int elts_head; /* Current index in (*elts)[]. */
249 unsigned int elts_tail; /* First element awaiting completion. */
250 unsigned int elts_comp; /* Number of completion requests. */
251 unsigned int elts_comp_cd; /* Countdown for next completion request. */
252 unsigned int elts_comp_cd_init; /* Initial value for countdown. */
254 const struct rte_mempool *mp; /* Cached Memory Pool. */
255 struct ibv_mr *mr; /* Memory Region (for mp). */
256 uint32_t lkey; /* mr->lkey */
257 } mp2mr[MLX5_PMD_TX_MP_CACHE]; /* MP to MR translation table. */
258 struct mlx5_txq_stats stats; /* TX queue counters. */
259 #ifdef HAVE_VERBS_VLAN_INSERTION
260 struct ibv_exp_qp_burst_family_v1 *if_qp; /* QP burst interface. */
262 struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */
264 struct ibv_exp_cq_family *if_cq; /* CQ interface. */
265 struct ibv_exp_res_domain *rd; /* Resource Domain. */
266 unsigned int socket; /* CPU socket ID for allocations. */
271 extern const struct hash_rxq_init hash_rxq_init[];
272 extern const unsigned int hash_rxq_init_n;
274 extern uint8_t rss_hash_default_key[];
275 extern const size_t rss_hash_default_key_len;
277 size_t priv_flow_attr(struct priv *, struct ibv_exp_flow_attr *,
278 size_t, enum hash_rxq_type);
279 int priv_create_hash_rxqs(struct priv *);
280 void priv_destroy_hash_rxqs(struct priv *);
281 int priv_allow_flow_type(struct priv *, enum hash_rxq_flow_type);
282 int priv_rehash_flows(struct priv *);
283 void rxq_cleanup(struct rxq *);
284 int rxq_rehash(struct rte_eth_dev *, struct rxq *);
285 int rxq_setup(struct rte_eth_dev *, struct rxq *, uint16_t, unsigned int,
286 const struct rte_eth_rxconf *, struct rte_mempool *);
287 int mlx5_rx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int,
288 const struct rte_eth_rxconf *, struct rte_mempool *);
289 void mlx5_rx_queue_release(void *);
290 uint16_t mlx5_rx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t);
294 void txq_cleanup(struct txq *);
295 int txq_setup(struct rte_eth_dev *, struct txq *, uint16_t, unsigned int,
296 const struct rte_eth_txconf *);
297 int mlx5_tx_queue_setup(struct rte_eth_dev *, uint16_t, uint16_t, unsigned int,
298 const struct rte_eth_txconf *);
299 void mlx5_tx_queue_release(void *);
300 uint16_t mlx5_tx_burst_secondary_setup(void *, struct rte_mbuf **, uint16_t);
304 uint16_t mlx5_tx_burst(void *, struct rte_mbuf **, uint16_t);
305 uint16_t mlx5_rx_burst(void *, struct rte_mbuf **, uint16_t);
306 uint16_t removed_tx_burst(void *, struct rte_mbuf **, uint16_t);
307 uint16_t removed_rx_burst(void *, struct rte_mbuf **, uint16_t);
311 struct ibv_mr *mlx5_mp2mr(struct ibv_pd *, struct rte_mempool *);
312 void txq_mp2mr_iter(struct rte_mempool *, void *);
313 uint32_t txq_mp2mr_reg(struct txq *, struct rte_mempool *, unsigned int);
315 #endif /* RTE_PMD_MLX5_RXTX_H_ */