1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2018 Mellanox Technologies, Ltd
5 #ifndef RTE_PMD_MLX5_FLOW_H_
6 #define RTE_PMD_MLX5_FLOW_H_
8 #include <netinet/in.h>
15 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
17 #pragma GCC diagnostic ignored "-Wpedantic"
19 #include <infiniband/verbs.h>
21 #pragma GCC diagnostic error "-Wpedantic"
24 /* Pattern outer Layer bits. */
25 #define MLX5_FLOW_LAYER_OUTER_L2 (1u << 0)
26 #define MLX5_FLOW_LAYER_OUTER_L3_IPV4 (1u << 1)
27 #define MLX5_FLOW_LAYER_OUTER_L3_IPV6 (1u << 2)
28 #define MLX5_FLOW_LAYER_OUTER_L4_UDP (1u << 3)
29 #define MLX5_FLOW_LAYER_OUTER_L4_TCP (1u << 4)
30 #define MLX5_FLOW_LAYER_OUTER_VLAN (1u << 5)
32 /* Pattern inner Layer bits. */
33 #define MLX5_FLOW_LAYER_INNER_L2 (1u << 6)
34 #define MLX5_FLOW_LAYER_INNER_L3_IPV4 (1u << 7)
35 #define MLX5_FLOW_LAYER_INNER_L3_IPV6 (1u << 8)
36 #define MLX5_FLOW_LAYER_INNER_L4_UDP (1u << 9)
37 #define MLX5_FLOW_LAYER_INNER_L4_TCP (1u << 10)
38 #define MLX5_FLOW_LAYER_INNER_VLAN (1u << 11)
40 /* Pattern tunnel Layer bits. */
41 #define MLX5_FLOW_LAYER_VXLAN (1u << 12)
42 #define MLX5_FLOW_LAYER_VXLAN_GPE (1u << 13)
43 #define MLX5_FLOW_LAYER_GRE (1u << 14)
44 #define MLX5_FLOW_LAYER_MPLS (1u << 15)
46 /* General pattern items bits. */
47 #define MLX5_FLOW_ITEM_METADATA (1u << 16)
50 #define MLX5_FLOW_LAYER_OUTER_L3 \
51 (MLX5_FLOW_LAYER_OUTER_L3_IPV4 | MLX5_FLOW_LAYER_OUTER_L3_IPV6)
52 #define MLX5_FLOW_LAYER_OUTER_L4 \
53 (MLX5_FLOW_LAYER_OUTER_L4_UDP | MLX5_FLOW_LAYER_OUTER_L4_TCP)
54 #define MLX5_FLOW_LAYER_OUTER \
55 (MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_L3 | \
56 MLX5_FLOW_LAYER_OUTER_L4)
59 #define MLX5_FLOW_LAYER_TUNNEL \
60 (MLX5_FLOW_LAYER_VXLAN | MLX5_FLOW_LAYER_VXLAN_GPE | \
61 MLX5_FLOW_LAYER_GRE | MLX5_FLOW_LAYER_MPLS)
64 #define MLX5_FLOW_LAYER_INNER_L3 \
65 (MLX5_FLOW_LAYER_INNER_L3_IPV4 | MLX5_FLOW_LAYER_INNER_L3_IPV6)
66 #define MLX5_FLOW_LAYER_INNER_L4 \
67 (MLX5_FLOW_LAYER_INNER_L4_UDP | MLX5_FLOW_LAYER_INNER_L4_TCP)
68 #define MLX5_FLOW_LAYER_INNER \
69 (MLX5_FLOW_LAYER_INNER_L2 | MLX5_FLOW_LAYER_INNER_L3 | \
70 MLX5_FLOW_LAYER_INNER_L4)
73 #define MLX5_FLOW_ACTION_DROP (1u << 0)
74 #define MLX5_FLOW_ACTION_QUEUE (1u << 1)
75 #define MLX5_FLOW_ACTION_RSS (1u << 2)
76 #define MLX5_FLOW_ACTION_FLAG (1u << 3)
77 #define MLX5_FLOW_ACTION_MARK (1u << 4)
78 #define MLX5_FLOW_ACTION_COUNT (1u << 5)
79 #define MLX5_FLOW_ACTION_PORT_ID (1u << 6)
80 #define MLX5_FLOW_ACTION_OF_POP_VLAN (1u << 7)
81 #define MLX5_FLOW_ACTION_OF_PUSH_VLAN (1u << 8)
82 #define MLX5_FLOW_ACTION_OF_SET_VLAN_VID (1u << 9)
83 #define MLX5_FLOW_ACTION_OF_SET_VLAN_PCP (1u << 10)
84 #define MLX5_FLOW_ACTION_SET_IPV4_SRC (1u << 11)
85 #define MLX5_FLOW_ACTION_SET_IPV4_DST (1u << 12)
86 #define MLX5_FLOW_ACTION_SET_IPV6_SRC (1u << 13)
87 #define MLX5_FLOW_ACTION_SET_IPV6_DST (1u << 14)
88 #define MLX5_FLOW_ACTION_SET_TP_SRC (1u << 15)
89 #define MLX5_FLOW_ACTION_SET_TP_DST (1u << 16)
90 #define MLX5_FLOW_ACTION_JUMP (1u << 17)
91 #define MLX5_FLOW_ACTION_SET_TTL (1u << 18)
92 #define MLX5_FLOW_ACTION_DEC_TTL (1u << 19)
93 #define MLX5_FLOW_ACTION_SET_MAC_SRC (1u << 20)
94 #define MLX5_FLOW_ACTION_SET_MAC_DST (1u << 21)
95 #define MLX5_FLOW_ACTION_VXLAN_ENCAP (1u << 22)
97 #define MLX5_FLOW_FATE_ACTIONS \
98 (MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)
101 #define IPPROTO_MPLS 137
104 /* UDP port numbers for VxLAN. */
105 #define MLX5_UDP_PORT_VXLAN 4789
106 #define MLX5_UDP_PORT_VXLAN_GPE 4790
108 /* Priority reserved for default flows. */
109 #define MLX5_FLOW_PRIO_RSVD ((uint32_t)-1)
112 * Number of sub priorities.
113 * For each kind of pattern matching i.e. L2, L3, L4 to have a correct
114 * matching on the NIC (firmware dependent) L4 most have the higher priority
115 * followed by L3 and ending with L2.
117 #define MLX5_PRIORITY_MAP_L2 2
118 #define MLX5_PRIORITY_MAP_L3 1
119 #define MLX5_PRIORITY_MAP_L4 0
120 #define MLX5_PRIORITY_MAP_MAX 3
122 /* Valid layer type for IPV4 RSS. */
123 #define MLX5_IPV4_LAYER_TYPES \
124 (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | \
125 ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV4_UDP | \
126 ETH_RSS_NONFRAG_IPV4_OTHER)
128 /* IBV hash source bits for IPV4. */
129 #define MLX5_IPV4_IBV_RX_HASH (IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4)
131 /* Valid layer type for IPV6 RSS. */
132 #define MLX5_IPV6_LAYER_TYPES \
133 (ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | ETH_RSS_NONFRAG_IPV6_TCP | \
134 ETH_RSS_NONFRAG_IPV6_UDP | ETH_RSS_IPV6_EX | ETH_RSS_IPV6_TCP_EX | \
135 ETH_RSS_IPV6_UDP_EX | ETH_RSS_NONFRAG_IPV6_OTHER)
137 /* IBV hash source bits for IPV6. */
138 #define MLX5_IPV6_IBV_RX_HASH (IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6)
140 /* Max number of actions per DV flow. */
141 #define MLX5_DV_MAX_NUMBER_OF_ACTIONS 8
143 enum mlx5_flow_drv_type {
147 MLX5_FLOW_TYPE_VERBS,
151 /* Matcher PRM representation */
152 struct mlx5_flow_dv_match_params {
154 /**< Size of match value. Do NOT split size and key! */
155 uint32_t buf[MLX5_ST_SZ_DW(fte_match_param)];
156 /**< Matcher value. This value is used as the mask or as a key. */
159 #define MLX5_DV_MAX_NUMBER_OF_ACTIONS 8
161 /* Matcher structure. */
162 struct mlx5_flow_dv_matcher {
163 LIST_ENTRY(mlx5_flow_dv_matcher) next;
164 /* Pointer to the next element. */
165 rte_atomic32_t refcnt; /**< Reference counter. */
166 void *matcher_object; /**< Pointer to DV matcher */
167 uint16_t crc; /**< CRC of key. */
168 uint16_t priority; /**< Priority of matcher. */
169 uint8_t egress; /**< Egress matcher. */
170 struct mlx5_flow_dv_match_params mask; /**< Matcher mask. */
173 /* DV flows structure. */
174 struct mlx5_flow_dv {
175 uint64_t hash_fields; /**< Fields that participate in the hash. */
176 struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */
178 struct mlx5_flow_dv_matcher *matcher; /**< Cache to matcher. */
179 struct mlx5_flow_dv_match_params value;
180 /**< Holds the value that the packet is compared to. */
181 struct ibv_flow *flow; /**< Installed flow. */
182 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
183 struct mlx5dv_flow_action_attr actions[MLX5_DV_MAX_NUMBER_OF_ACTIONS];
185 struct ibv_flow_action *encap_decap_verbs_action;
186 /**< Verbs encap/decap object. */
188 int actions_n; /**< number of actions. */
191 /** Linux TC flower driver for E-Switch flow. */
192 struct mlx5_flow_tcf {
193 struct nlmsghdr *nlh;
197 /* Verbs specification header. */
198 struct ibv_spec_header {
199 enum ibv_flow_spec_type type;
203 /** Handles information leading to a drop fate. */
204 struct mlx5_flow_verbs {
205 LIST_ENTRY(mlx5_flow_verbs) next;
206 unsigned int size; /**< Size of the attribute. */
208 struct ibv_flow_attr *attr;
209 /**< Pointer to the Specification buffer. */
210 uint8_t *specs; /**< Pointer to the specifications. */
212 struct ibv_flow *flow; /**< Verbs flow pointer. */
213 struct mlx5_hrxq *hrxq; /**< Hash Rx queue object. */
214 uint64_t hash_fields; /**< Verbs hash Rx queue hash fields. */
217 /** Device flow structure. */
219 LIST_ENTRY(mlx5_flow) next;
220 struct rte_flow *flow; /**< Pointer to the main flow. */
222 /**< Bit-fields of present layers, see MLX5_FLOW_LAYER_*. */
224 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
225 struct mlx5_flow_dv dv;
227 struct mlx5_flow_tcf tcf;
228 struct mlx5_flow_verbs verbs;
232 /* Counters information. */
233 struct mlx5_flow_counter {
234 LIST_ENTRY(mlx5_flow_counter) next; /**< Pointer to the next counter. */
235 uint32_t shared:1; /**< Share counter ID with other flow rules. */
236 uint32_t ref_cnt:31; /**< Reference counter. */
237 uint32_t id; /**< Counter ID. */
238 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
239 struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
240 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
241 struct ibv_counters *cs; /**< Holds the counters for the rule. */
243 uint64_t hits; /**< Number of packets matched by the rule. */
244 uint64_t bytes; /**< Number of bytes matched by the rule. */
247 /* Flow structure. */
249 TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
250 enum mlx5_flow_drv_type drv_type; /**< Drvier type. */
251 struct mlx5_flow_counter *counter; /**< Holds flow counter. */
252 struct rte_flow_action_rss rss;/**< RSS context. */
253 uint8_t key[MLX5_RSS_HASH_KEY_LEN]; /**< RSS hash key. */
254 uint16_t (*queue)[]; /**< Destination queues to redirect traffic to. */
255 LIST_HEAD(dev_flows, mlx5_flow) dev_flows;
256 /**< Device flows that are part of the flow. */
258 /**< Bit-fields of detected actions, see MLX5_FLOW_ACTION_*. */
259 struct mlx5_fdir *fdir; /**< Pointer to associated FDIR if any. */
262 typedef int (*mlx5_flow_validate_t)(struct rte_eth_dev *dev,
263 const struct rte_flow_attr *attr,
264 const struct rte_flow_item items[],
265 const struct rte_flow_action actions[],
266 struct rte_flow_error *error);
267 typedef struct mlx5_flow *(*mlx5_flow_prepare_t)
268 (const struct rte_flow_attr *attr, const struct rte_flow_item items[],
269 const struct rte_flow_action actions[], uint64_t *item_flags,
270 uint64_t *action_flags, struct rte_flow_error *error);
271 typedef int (*mlx5_flow_translate_t)(struct rte_eth_dev *dev,
272 struct mlx5_flow *dev_flow,
273 const struct rte_flow_attr *attr,
274 const struct rte_flow_item items[],
275 const struct rte_flow_action actions[],
276 struct rte_flow_error *error);
277 typedef int (*mlx5_flow_apply_t)(struct rte_eth_dev *dev, struct rte_flow *flow,
278 struct rte_flow_error *error);
279 typedef void (*mlx5_flow_remove_t)(struct rte_eth_dev *dev,
280 struct rte_flow *flow);
281 typedef void (*mlx5_flow_destroy_t)(struct rte_eth_dev *dev,
282 struct rte_flow *flow);
283 typedef int (*mlx5_flow_query_t)(struct rte_eth_dev *dev,
284 struct rte_flow *flow,
285 const struct rte_flow_action *actions,
287 struct rte_flow_error *error);
288 struct mlx5_flow_driver_ops {
289 mlx5_flow_validate_t validate;
290 mlx5_flow_prepare_t prepare;
291 mlx5_flow_translate_t translate;
292 mlx5_flow_apply_t apply;
293 mlx5_flow_remove_t remove;
294 mlx5_flow_destroy_t destroy;
295 mlx5_flow_query_t query;
300 uint64_t mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow, int tunnel,
301 uint64_t layer_types,
302 uint64_t hash_fields);
303 uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
304 uint32_t subpriority);
305 int mlx5_flow_validate_action_count(struct rte_eth_dev *dev,
306 const struct rte_flow_attr *attr,
307 struct rte_flow_error *error);
308 int mlx5_flow_validate_action_drop(uint64_t action_flags,
309 const struct rte_flow_attr *attr,
310 struct rte_flow_error *error);
311 int mlx5_flow_validate_action_flag(uint64_t action_flags,
312 const struct rte_flow_attr *attr,
313 struct rte_flow_error *error);
314 int mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
315 uint64_t action_flags,
316 const struct rte_flow_attr *attr,
317 struct rte_flow_error *error);
318 int mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
319 uint64_t action_flags,
320 struct rte_eth_dev *dev,
321 const struct rte_flow_attr *attr,
322 struct rte_flow_error *error);
323 int mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
324 uint64_t action_flags,
325 struct rte_eth_dev *dev,
326 const struct rte_flow_attr *attr,
327 struct rte_flow_error *error);
328 int mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
329 const struct rte_flow_attr *attributes,
330 struct rte_flow_error *error);
331 int mlx5_flow_item_acceptable(const struct rte_flow_item *item,
333 const uint8_t *nic_mask,
335 struct rte_flow_error *error);
336 int mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
338 struct rte_flow_error *error);
339 int mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
341 uint8_t target_protocol,
342 struct rte_flow_error *error);
343 int mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
345 struct rte_flow_error *error);
346 int mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
348 struct rte_flow_error *error);
349 int mlx5_flow_validate_item_mpls(const struct rte_flow_item *item,
351 uint8_t target_protocol,
352 struct rte_flow_error *error);
353 int mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
355 uint8_t target_protocol,
356 const struct rte_flow_item_tcp *flow_mask,
357 struct rte_flow_error *error);
358 int mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
360 uint8_t target_protocol,
361 struct rte_flow_error *error);
362 int mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
364 struct rte_flow_error *error);
365 int mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
367 struct rte_flow_error *error);
368 int mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
370 struct rte_eth_dev *dev,
371 struct rte_flow_error *error);
373 /* mlx5_flow_tcf.c */
375 int mlx5_flow_tcf_init(struct mlx5_flow_tcf_context *ctx,
376 unsigned int ifindex, struct rte_flow_error *error);
377 struct mlx5_flow_tcf_context *mlx5_flow_tcf_context_create(void);
378 void mlx5_flow_tcf_context_destroy(struct mlx5_flow_tcf_context *ctx);
380 #endif /* RTE_PMD_MLX5_FLOW_H_ */