84c406e745
This commit modify the conversion of the input parameters into Verbs spec, in order to support all previous changes. Some of those changes are: removing the use of the parser, storing each flow in its own flow structure. Signed-off-by: Ori Kam <orika@mellanox.com> Acked-by: Yongseok Koh <yskoh@mellanox.com>
260 lines
9.2 KiB
C
260 lines
9.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2018 Mellanox Technologies, Ltd
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*/
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#ifndef RTE_PMD_MLX5_FLOW_H_
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#define RTE_PMD_MLX5_FLOW_H_
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#include <netinet/in.h>
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#include <sys/queue.h>
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#include <stdalign.h>
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#include <stdint.h>
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#include <string.h>
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/* Verbs header. */
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/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
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#ifdef PEDANTIC
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#pragma GCC diagnostic ignored "-Wpedantic"
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#endif
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#include <infiniband/verbs.h>
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#ifdef PEDANTIC
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#pragma GCC diagnostic error "-Wpedantic"
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#endif
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/* Pattern outer Layer bits. */
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#define MLX5_FLOW_LAYER_OUTER_L2 (1u << 0)
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#define MLX5_FLOW_LAYER_OUTER_L3_IPV4 (1u << 1)
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#define MLX5_FLOW_LAYER_OUTER_L3_IPV6 (1u << 2)
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#define MLX5_FLOW_LAYER_OUTER_L4_UDP (1u << 3)
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#define MLX5_FLOW_LAYER_OUTER_L4_TCP (1u << 4)
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#define MLX5_FLOW_LAYER_OUTER_VLAN (1u << 5)
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/* Pattern inner Layer bits. */
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#define MLX5_FLOW_LAYER_INNER_L2 (1u << 6)
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#define MLX5_FLOW_LAYER_INNER_L3_IPV4 (1u << 7)
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#define MLX5_FLOW_LAYER_INNER_L3_IPV6 (1u << 8)
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#define MLX5_FLOW_LAYER_INNER_L4_UDP (1u << 9)
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#define MLX5_FLOW_LAYER_INNER_L4_TCP (1u << 10)
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#define MLX5_FLOW_LAYER_INNER_VLAN (1u << 11)
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/* Pattern tunnel Layer bits. */
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#define MLX5_FLOW_LAYER_VXLAN (1u << 12)
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#define MLX5_FLOW_LAYER_VXLAN_GPE (1u << 13)
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#define MLX5_FLOW_LAYER_GRE (1u << 14)
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#define MLX5_FLOW_LAYER_MPLS (1u << 15)
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/* Outer Masks. */
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#define MLX5_FLOW_LAYER_OUTER_L3 \
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(MLX5_FLOW_LAYER_OUTER_L3_IPV4 | MLX5_FLOW_LAYER_OUTER_L3_IPV6)
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#define MLX5_FLOW_LAYER_OUTER_L4 \
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(MLX5_FLOW_LAYER_OUTER_L4_UDP | MLX5_FLOW_LAYER_OUTER_L4_TCP)
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#define MLX5_FLOW_LAYER_OUTER \
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(MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_L3 | \
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MLX5_FLOW_LAYER_OUTER_L4)
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/* Tunnel Masks. */
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#define MLX5_FLOW_LAYER_TUNNEL \
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(MLX5_FLOW_LAYER_VXLAN | MLX5_FLOW_LAYER_VXLAN_GPE | \
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MLX5_FLOW_LAYER_GRE | MLX5_FLOW_LAYER_MPLS)
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/* Inner Masks. */
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#define MLX5_FLOW_LAYER_INNER_L3 \
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(MLX5_FLOW_LAYER_INNER_L3_IPV4 | MLX5_FLOW_LAYER_INNER_L3_IPV6)
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#define MLX5_FLOW_LAYER_INNER_L4 \
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(MLX5_FLOW_LAYER_INNER_L4_UDP | MLX5_FLOW_LAYER_INNER_L4_TCP)
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#define MLX5_FLOW_LAYER_INNER \
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(MLX5_FLOW_LAYER_INNER_L2 | MLX5_FLOW_LAYER_INNER_L3 | \
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MLX5_FLOW_LAYER_INNER_L4)
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/* Actions that modify the fate of matching traffic. */
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#define MLX5_FLOW_FATE_DROP (1u << 0)
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#define MLX5_FLOW_FATE_QUEUE (1u << 1)
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#define MLX5_FLOW_FATE_RSS (1u << 2)
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/* Modify a packet. */
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#define MLX5_FLOW_MOD_FLAG (1u << 0)
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#define MLX5_FLOW_MOD_MARK (1u << 1)
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#define MLX5_FLOW_MOD_COUNT (1u << 2)
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/* Actions */
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#define MLX5_FLOW_ACTION_DROP (1u << 0)
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#define MLX5_FLOW_ACTION_QUEUE (1u << 1)
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#define MLX5_FLOW_ACTION_RSS (1u << 2)
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#define MLX5_FLOW_ACTION_FLAG (1u << 3)
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#define MLX5_FLOW_ACTION_MARK (1u << 4)
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#define MLX5_FLOW_ACTION_COUNT (1u << 5)
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#define MLX5_FLOW_FATE_ACTIONS \
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(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)
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#ifndef IPPROTO_MPLS
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#define IPPROTO_MPLS 137
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#endif
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/* Priority reserved for default flows. */
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#define MLX5_FLOW_PRIO_RSVD ((uint32_t)-1)
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/*
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* Number of sub priorities.
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* For each kind of pattern matching i.e. L2, L3, L4 to have a correct
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* matching on the NIC (firmware dependent) L4 most have the higher priority
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* followed by L3 and ending with L2.
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*/
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#define MLX5_PRIORITY_MAP_L2 2
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#define MLX5_PRIORITY_MAP_L3 1
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#define MLX5_PRIORITY_MAP_L4 0
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#define MLX5_PRIORITY_MAP_MAX 3
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/* Verbs specification header. */
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struct ibv_spec_header {
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enum ibv_flow_spec_type type;
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uint16_t size;
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};
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/** Handles information leading to a drop fate. */
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struct mlx5_flow_verbs {
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LIST_ENTRY(mlx5_flow_verbs) next;
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unsigned int size; /**< Size of the attribute. */
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struct {
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struct ibv_flow_attr *attr;
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/**< Pointer to the Specification buffer. */
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uint8_t *specs; /**< Pointer to the specifications. */
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};
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struct ibv_flow *flow; /**< Verbs flow pointer. */
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struct mlx5_hrxq *hrxq; /**< Hash Rx queue object. */
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uint64_t hash_fields; /**< Verbs hash Rx queue hash fields. */
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};
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/** Device flow structure. */
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struct mlx5_flow {
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LIST_ENTRY(mlx5_flow) next;
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struct rte_flow *flow; /**< Pointer to the main flow. */
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uint32_t layers; /**< Bit-fields that holds the detected layers. */
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union {
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struct mlx5_flow_verbs verbs; /**< Holds the verbs dev-flow. */
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};
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};
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/* Counters information. */
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struct mlx5_flow_counter {
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LIST_ENTRY(mlx5_flow_counter) next; /**< Pointer to the next counter. */
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uint32_t shared:1; /**< Share counter ID with other flow rules. */
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uint32_t ref_cnt:31; /**< Reference counter. */
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uint32_t id; /**< Counter ID. */
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struct ibv_counter_set *cs; /**< Holds the counters for the rule. */
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uint64_t hits; /**< Number of packets matched by the rule. */
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uint64_t bytes; /**< Number of bytes matched by the rule. */
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};
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/* Flow structure. */
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struct rte_flow {
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TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
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struct rte_flow_attr attributes; /**< User flow attribute. */
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uint32_t layers;
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/**< Bit-fields of present layers see MLX5_FLOW_LAYER_*. */
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struct mlx5_flow_counter *counter; /**< Holds flow counter. */
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struct rte_flow_action_rss rss;/**< RSS context. */
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uint8_t key[MLX5_RSS_HASH_KEY_LEN]; /**< RSS hash key. */
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uint16_t (*queue)[]; /**< Destination queues to redirect traffic to. */
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void *nl_flow; /**< Netlink flow buffer if relevant. */
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LIST_HEAD(dev_flows, mlx5_flow) dev_flows;
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/**< Device flows that are part of the flow. */
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uint32_t actions; /**< Bit-fields which mark all detected actions. */
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};
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typedef int (*mlx5_flow_validate_t)(struct rte_eth_dev *dev,
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const struct rte_flow_attr *attr,
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const struct rte_flow_item items[],
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const struct rte_flow_action actions[],
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struct rte_flow_error *error);
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typedef struct mlx5_flow *(*mlx5_flow_prepare_t)
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(const struct rte_flow_attr *attr, const struct rte_flow_item items[],
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const struct rte_flow_action actions[], uint64_t *item_flags,
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uint64_t *action_flags, struct rte_flow_error *error);
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typedef int (*mlx5_flow_translate_t)(struct rte_eth_dev *dev,
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struct mlx5_flow *dev_flow,
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const struct rte_flow_attr *attr,
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const struct rte_flow_item items[],
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const struct rte_flow_action actions[],
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struct rte_flow_error *error);
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typedef int (*mlx5_flow_apply_t)(struct rte_eth_dev *dev, struct rte_flow *flow,
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struct rte_flow_error *error);
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typedef void (*mlx5_flow_remove_t)(struct rte_eth_dev *dev,
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struct rte_flow *flow);
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typedef void (*mlx5_flow_destroy_t)(struct rte_eth_dev *dev,
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struct rte_flow *flow);
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struct mlx5_flow_driver_ops {
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mlx5_flow_validate_t validate;
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mlx5_flow_prepare_t prepare;
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mlx5_flow_translate_t translate;
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mlx5_flow_apply_t apply;
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mlx5_flow_remove_t remove;
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mlx5_flow_destroy_t destroy;
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};
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/* mlx5_flow.c */
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uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
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uint32_t subpriority);
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int mlx5_flow_validate_action_count(struct rte_eth_dev *dev,
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struct rte_flow_error *error);
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int mlx5_flow_validate_action_drop(uint64_t action_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_action_flag(uint64_t action_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
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uint64_t action_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
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uint64_t action_flags,
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struct rte_eth_dev *dev,
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struct rte_flow_error *error);
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int mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
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uint64_t action_flags,
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struct rte_eth_dev *dev,
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struct rte_flow_error *error);
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int mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
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const struct rte_flow_attr *attributes,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
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uint64_t item_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
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uint64_t item_flags,
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uint8_t target_protocol,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
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int64_t item_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
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uint64_t item_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_mpls(const struct rte_flow_item *item,
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uint64_t item_flags,
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uint8_t target_protocol,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
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uint64_t item_flags,
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uint8_t target_protocol,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
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uint64_t item_flags,
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uint8_t target_protocol,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
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int64_t item_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
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uint64_t item_flags,
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struct rte_flow_error *error);
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int mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
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uint64_t item_flags,
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struct rte_eth_dev *dev,
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struct rte_flow_error *error);
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void mlx5_flow_init_driver_ops(struct rte_eth_dev *dev);
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/* mlx5_flow_verbs.c */
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void mlx5_flow_verbs_get_driver_ops(struct mlx5_flow_driver_ops *flow_ops);
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#endif /* RTE_PMD_MLX5_FLOW_H_ */
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