1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright(c) 2019-2021 Xilinx, Inc.
4 * Copyright(c) 2017-2019 Solarflare Communications Inc.
6 * This software was jointly developed between OKTET Labs (under contract
7 * for Solarflare) and Solarflare Communications, Inc.
13 #include <rte_tailq.h>
14 #include <rte_flow_driver.h>
23 * The maximum number of fully elaborated hardware filter specifications
24 * which can be produced from a template by means of multiplication, if
25 * missing match flags are needed to be taken into account
27 #define SF_FLOW_SPEC_NB_FILTERS_MAX 8
29 /* Used to guard action masks */
30 #define SFC_BUILD_SET_OVERFLOW(_action, _set) \
31 RTE_BUILD_BUG_ON((_action) >= sizeof(_set) * CHAR_BIT)
33 /* RSS configuration storage */
35 unsigned int rxq_hw_index_min;
36 unsigned int rxq_hw_index_max;
37 unsigned int rss_hash_types;
38 uint8_t rss_key[EFX_RSS_KEY_SIZE];
39 unsigned int rss_tbl[EFX_RSS_TBL_SIZE];
42 /* Flow engines supported by the implementation */
43 enum sfc_flow_spec_type {
44 SFC_FLOW_SPEC_FILTER = 0,
50 /* VNIC-specific flow specification */
51 struct sfc_flow_spec_filter {
52 /* partial specification from flow rule */
53 efx_filter_spec_t template;
54 /* fully elaborated hardware filters specifications */
55 efx_filter_spec_t filters[SF_FLOW_SPEC_NB_FILTERS_MAX];
56 /* number of complete specifications */
61 boolean_t rss_hash_required;
62 /* RSS configuration */
63 struct sfc_flow_rss rss_conf;
66 /* Indicates the role of a given flow in tunnel offload */
67 enum sfc_flow_tunnel_rule_type {
68 /* The flow has nothing to do with tunnel offload */
70 /* The flow represents a JUMP rule */
74 /* MAE-specific flow specification */
75 struct sfc_flow_spec_mae {
76 /* FLow Tunnel (FT) rule type (or NONE) */
77 enum sfc_flow_tunnel_rule_type ft_rule_type;
78 /* Flow Tunnel (FT) context (or NULL) */
79 struct sfc_flow_tunnel *ft;
80 /* Desired priority level */
81 unsigned int priority;
82 /* Outer rule registry entry */
83 struct sfc_mae_outer_rule *outer_rule;
84 /* EFX match specification */
85 efx_mae_match_spec_t *match_spec;
86 /* Action set registry entry */
87 struct sfc_mae_action_set *action_set;
88 /* Firmware-allocated rule ID */
89 efx_mae_rule_id_t rule_id;
92 /* Flow specification */
93 struct sfc_flow_spec {
94 /* Flow specification type (engine-based) */
95 enum sfc_flow_spec_type type;
99 /* Filter-based (VNIC level flows) specification */
100 struct sfc_flow_spec_filter filter;
101 /* MAE-based (lower-level HW switch flows) specification */
102 struct sfc_flow_spec_mae mae;
106 /* PMD-specific definition of the opaque type from rte_flow.h */
108 struct sfc_flow_spec spec; /* flow specification */
109 TAILQ_ENTRY(rte_flow) entries; /* flow list entries */
112 TAILQ_HEAD(sfc_flow_list, rte_flow);
114 extern const struct rte_flow_ops sfc_flow_ops;
116 enum sfc_flow_item_layers {
117 SFC_FLOW_ITEM_ANY_LAYER,
118 SFC_FLOW_ITEM_START_LAYER,
124 /* Flow parse context types */
125 enum sfc_flow_parse_ctx_type {
126 SFC_FLOW_PARSE_CTX_FILTER = 0,
127 SFC_FLOW_PARSE_CTX_MAE,
129 SFC_FLOW_PARSE_CTX_NTYPES
132 /* Flow parse context */
133 struct sfc_flow_parse_ctx {
134 enum sfc_flow_parse_ctx_type type;
138 /* Context pointer valid for filter-based (VNIC) flows */
139 efx_filter_spec_t *filter;
140 /* Context pointer valid for MAE-based flows */
141 struct sfc_mae_parse_ctx *mae;
145 typedef int (sfc_flow_item_parse)(const struct rte_flow_item *item,
146 struct sfc_flow_parse_ctx *parse_ctx,
147 struct rte_flow_error *error);
149 struct sfc_flow_item {
150 enum rte_flow_item_type type; /* Type of item */
151 const char *name; /* Item name */
152 enum sfc_flow_item_layers layer; /* Layer of item */
153 enum sfc_flow_item_layers prev_layer; /* Previous layer of item */
154 enum sfc_flow_parse_ctx_type ctx_type; /* Parse context type */
155 sfc_flow_item_parse *parse; /* Parsing function */
160 int sfc_flow_parse_pattern(struct sfc_adapter *sa,
161 const struct sfc_flow_item *flow_items,
162 unsigned int nb_flow_items,
163 const struct rte_flow_item pattern[],
164 struct sfc_flow_parse_ctx *parse_ctx,
165 struct rte_flow_error *error);
167 int sfc_flow_parse_init(const struct rte_flow_item *item,
168 const void **spec_ptr,
169 const void **mask_ptr,
170 const void *supp_mask,
171 const void *def_mask,
173 struct rte_flow_error *error);
175 void sfc_flow_init(struct sfc_adapter *sa);
176 void sfc_flow_fini(struct sfc_adapter *sa);
177 int sfc_flow_start(struct sfc_adapter *sa);
178 void sfc_flow_stop(struct sfc_adapter *sa);
180 typedef int (sfc_flow_parse_cb_t)(struct rte_eth_dev *dev,
181 const struct rte_flow_item items[],
182 const struct rte_flow_action actions[],
183 struct rte_flow *flow,
184 struct rte_flow_error *error);
186 typedef int (sfc_flow_verify_cb_t)(struct sfc_adapter *sa,
187 struct rte_flow *flow);
189 typedef void (sfc_flow_cleanup_cb_t)(struct sfc_adapter *sa,
190 struct rte_flow *flow);
192 typedef int (sfc_flow_insert_cb_t)(struct sfc_adapter *sa,
193 struct rte_flow *flow);
195 typedef int (sfc_flow_remove_cb_t)(struct sfc_adapter *sa,
196 struct rte_flow *flow);
198 typedef int (sfc_flow_query_cb_t)(struct rte_eth_dev *dev,
199 struct rte_flow *flow,
200 const struct rte_flow_action *action,
202 struct rte_flow_error *error);
207 #endif /* _SFC_FLOW_H */