net/mlx5: support basic flow items and actions
Introduce initial software for rte_flow rules. VLAN, VXLAN are still not supported. Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
This commit is contained in:
Nélio Laranjeiro
Ferruh Yigit
parent
0d356350fa
commit
2097d0d1e2
@ -136,6 +136,7 @@ struct priv {
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unsigned int reta_idx_n; /* RETA index size. */
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struct fdir_filter_list *fdir_filter_list; /* Flow director rules. */
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struct fdir_queue *fdir_drop_queue; /* Flow director drop queue. */
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LIST_HEAD(mlx5_flows, rte_flow) flows; /* RTE Flow rules. */
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uint32_t link_speed_capa; /* Link speed capabilities. */
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rte_spinlock_t lock; /* Lock for control functions. */
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};
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@ -283,5 +284,7 @@ struct rte_flow *mlx5_flow_create(struct rte_eth_dev *,
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int mlx5_flow_destroy(struct rte_eth_dev *, struct rte_flow *,
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struct rte_flow_error *);
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int mlx5_flow_flush(struct rte_eth_dev *, struct rte_flow_error *);
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int priv_flow_start(struct priv *);
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void priv_flow_stop(struct priv *);
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#endif /* RTE_PMD_MLX5_H_ */
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@ -31,12 +31,387 @@
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/queue.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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#include <rte_ethdev.h>
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#include <rte_flow.h>
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#include <rte_flow_driver.h>
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#include <rte_malloc.h>
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#include "mlx5.h"
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static int
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mlx5_flow_create_eth(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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static int
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mlx5_flow_create_ipv4(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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static int
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mlx5_flow_create_ipv6(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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static int
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mlx5_flow_create_udp(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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static int
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mlx5_flow_create_tcp(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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struct rte_flow {
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LIST_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
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struct ibv_exp_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
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struct ibv_exp_rwq_ind_table *ind_table; /**< Indirection table. */
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struct ibv_qp *qp; /**< Verbs queue pair. */
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struct ibv_exp_flow *ibv_flow; /**< Verbs flow. */
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struct ibv_exp_wq *wq; /**< Verbs work queue. */
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struct ibv_cq *cq; /**< Verbs completion queue. */
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struct rxq *rxq; /**< Pointer to the queue, NULL if drop queue. */
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};
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/** Static initializer for items. */
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#define ITEMS(...) \
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(const enum rte_flow_item_type []){ \
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__VA_ARGS__, RTE_FLOW_ITEM_TYPE_END, \
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}
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/** Structure to generate a simple graph of layers supported by the NIC. */
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struct mlx5_flow_items {
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/** List of possible actions for these items. */
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const enum rte_flow_action_type *const actions;
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/** Bit-masks corresponding to the possibilities for the item. */
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const void *mask;
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/** Bit-masks size in bytes. */
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const unsigned int mask_sz;
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/**
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* Conversion function from rte_flow to NIC specific flow.
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*
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* @param item
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* rte_flow item to convert.
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* @param default_mask
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* Default bit-masks to use when item->mask is not provided.
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* @param data
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* Internal structure to store the conversion.
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*
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* @return
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* 0 on success, negative value otherwise.
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*/
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int (*convert)(const struct rte_flow_item *item,
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const void *default_mask,
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void *data);
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/** Size in bytes of the destination structure. */
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const unsigned int dst_sz;
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/** List of possible following items. */
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const enum rte_flow_item_type *const items;
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};
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/** Valid action for this PMD. */
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static const enum rte_flow_action_type valid_actions[] = {
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RTE_FLOW_ACTION_TYPE_DROP,
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RTE_FLOW_ACTION_TYPE_QUEUE,
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RTE_FLOW_ACTION_TYPE_END,
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};
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/** Graph of supported items and associated actions. */
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static const struct mlx5_flow_items mlx5_flow_items[] = {
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[RTE_FLOW_ITEM_TYPE_END] = {
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.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
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},
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[RTE_FLOW_ITEM_TYPE_ETH] = {
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.items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4,
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RTE_FLOW_ITEM_TYPE_IPV6),
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.actions = valid_actions,
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.mask = &(const struct rte_flow_item_eth){
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.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
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.src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
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},
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.mask_sz = sizeof(struct rte_flow_item_eth),
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.convert = mlx5_flow_create_eth,
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.dst_sz = sizeof(struct ibv_exp_flow_spec_eth),
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},
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[RTE_FLOW_ITEM_TYPE_IPV4] = {
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.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
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RTE_FLOW_ITEM_TYPE_TCP),
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.actions = valid_actions,
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.mask = &(const struct rte_flow_item_ipv4){
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.hdr = {
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.src_addr = -1,
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.dst_addr = -1,
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},
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},
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.mask_sz = sizeof(struct rte_flow_item_ipv4),
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.convert = mlx5_flow_create_ipv4,
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.dst_sz = sizeof(struct ibv_exp_flow_spec_ipv4),
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},
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[RTE_FLOW_ITEM_TYPE_IPV6] = {
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.items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP,
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RTE_FLOW_ITEM_TYPE_TCP),
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.actions = valid_actions,
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.mask = &(const struct rte_flow_item_ipv6){
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.hdr = {
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.src_addr = {
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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},
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.dst_addr = {
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff,
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},
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},
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},
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.mask_sz = sizeof(struct rte_flow_item_ipv6),
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.convert = mlx5_flow_create_ipv6,
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.dst_sz = sizeof(struct ibv_exp_flow_spec_ipv6),
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},
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[RTE_FLOW_ITEM_TYPE_UDP] = {
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.actions = valid_actions,
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.mask = &(const struct rte_flow_item_udp){
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.hdr = {
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.src_port = -1,
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.dst_port = -1,
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},
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},
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.mask_sz = sizeof(struct rte_flow_item_udp),
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.convert = mlx5_flow_create_udp,
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.dst_sz = sizeof(struct ibv_exp_flow_spec_tcp_udp),
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},
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[RTE_FLOW_ITEM_TYPE_TCP] = {
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.actions = valid_actions,
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.mask = &(const struct rte_flow_item_tcp){
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.hdr = {
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.src_port = -1,
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.dst_port = -1,
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},
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},
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.mask_sz = sizeof(struct rte_flow_item_tcp),
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.convert = mlx5_flow_create_tcp,
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.dst_sz = sizeof(struct ibv_exp_flow_spec_tcp_udp),
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},
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};
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/** Structure to pass to the conversion function. */
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struct mlx5_flow {
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struct ibv_exp_flow_attr *ibv_attr; /**< Verbs attribute. */
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unsigned int offset; /**< Offset in bytes in the ibv_attr buffer. */
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};
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struct mlx5_flow_action {
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uint32_t queue:1; /**< Target is a receive queue. */
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uint32_t drop:1; /**< Target is a drop queue. */
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uint32_t queue_id; /**< Identifier of the queue. */
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};
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/**
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* Check support for a given item.
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*
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* @param item[in]
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* Item specification.
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* @param mask[in]
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* Bit-masks covering supported fields to compare with spec, last and mask in
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* \item.
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* @param size
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* Bit-Mask size in bytes.
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*
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* @return
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* 0 on success.
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*/
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static int
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mlx5_flow_item_validate(const struct rte_flow_item *item,
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const uint8_t *mask, unsigned int size)
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{
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int ret = 0;
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if (!item->spec && (item->mask || item->last))
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return -1;
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if (item->spec && !item->mask) {
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unsigned int i;
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const uint8_t *spec = item->spec;
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for (i = 0; i < size; ++i)
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if ((spec[i] | mask[i]) != mask[i])
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return -1;
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}
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if (item->last && !item->mask) {
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unsigned int i;
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const uint8_t *spec = item->last;
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for (i = 0; i < size; ++i)
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if ((spec[i] | mask[i]) != mask[i])
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return -1;
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}
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if (item->mask) {
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unsigned int i;
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const uint8_t *spec = item->mask;
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for (i = 0; i < size; ++i)
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if ((spec[i] | mask[i]) != mask[i])
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return -1;
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}
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if (item->spec && item->last) {
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uint8_t spec[size];
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uint8_t last[size];
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const uint8_t *apply = mask;
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unsigned int i;
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if (item->mask)
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apply = item->mask;
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for (i = 0; i < size; ++i) {
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spec[i] = ((const uint8_t *)item->spec)[i] & apply[i];
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last[i] = ((const uint8_t *)item->last)[i] & apply[i];
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}
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ret = memcmp(spec, last, size);
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}
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return ret;
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}
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/**
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* Validate a flow supported by the NIC.
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*
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* @param priv
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* Pointer to private structure.
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* @param[in] attr
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* Flow rule attributes.
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* @param[in] pattern
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* Pattern specification (list terminated by the END pattern item).
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* @param[in] actions
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* Associated actions (list terminated by the END action).
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* @param[out] error
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* Perform verbose error reporting if not NULL.
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* @param[in, out] flow
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* Flow structure to update.
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*
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* @return
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* 0 on success, a negative errno value otherwise and rte_errno is set.
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*/
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static int
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priv_flow_validate(struct priv *priv,
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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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struct mlx5_flow *flow)
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{
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const struct mlx5_flow_items *cur_item = mlx5_flow_items;
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struct mlx5_flow_action action = {
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.queue = 0,
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.drop = 0,
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};
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(void)priv;
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if (attr->group) {
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rte_flow_error_set(error, ENOTSUP,
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RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
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NULL,
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"groups are not supported");
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return -rte_errno;
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}
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if (attr->priority) {
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rte_flow_error_set(error, ENOTSUP,
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RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
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NULL,
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"priorities are not supported");
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return -rte_errno;
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}
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if (attr->egress) {
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rte_flow_error_set(error, ENOTSUP,
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RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
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NULL,
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"egress is not supported");
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return -rte_errno;
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}
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if (!attr->ingress) {
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rte_flow_error_set(error, ENOTSUP,
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RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
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NULL,
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"only ingress is supported");
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return -rte_errno;
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}
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for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
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const struct mlx5_flow_items *token = NULL;
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unsigned int i;
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int err;
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if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
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continue;
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for (i = 0;
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cur_item->items &&
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cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END;
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++i) {
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if (cur_item->items[i] == items->type) {
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token = &mlx5_flow_items[items->type];
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break;
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}
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}
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if (!token)
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goto exit_item_not_supported;
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cur_item = token;
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err = mlx5_flow_item_validate(items,
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(const uint8_t *)cur_item->mask,
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sizeof(cur_item->mask_sz));
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if (err)
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goto exit_item_not_supported;
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if (flow->ibv_attr && cur_item->convert) {
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err = cur_item->convert(items, cur_item->mask, flow);
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if (err)
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goto exit_item_not_supported;
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}
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flow->offset += cur_item->dst_sz;
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}
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for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
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if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
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continue;
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} else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
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action.drop = 1;
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} else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
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const struct rte_flow_action_queue *queue =
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(const struct rte_flow_action_queue *)
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actions->conf;
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if (!queue || (queue->index > (priv->rxqs_n - 1)))
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goto exit_action_not_supported;
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action.queue = 1;
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} else {
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goto exit_action_not_supported;
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}
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}
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if (!action.queue && !action.drop) {
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rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
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NULL, "no valid action");
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return -rte_errno;
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}
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return 0;
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exit_item_not_supported:
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rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
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items, "item not supported");
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return -rte_errno;
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exit_action_not_supported:
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rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
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actions, "action not supported");
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return -rte_errno;
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}
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/**
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* Validate a flow supported by the NIC.
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*
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@ -50,15 +425,436 @@ mlx5_flow_validate(struct rte_eth_dev *dev,
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const struct rte_flow_action actions[],
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struct rte_flow_error *error)
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{
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(void)dev;
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(void)attr;
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(void)items;
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(void)actions;
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(void)error;
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rte_flow_error_set(error, ENOTSUP,
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RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
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NULL, "not implemented yet");
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return -rte_errno;
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struct priv *priv = dev->data->dev_private;
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int ret;
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struct mlx5_flow flow = { .offset = sizeof(struct ibv_exp_flow_attr) };
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priv_lock(priv);
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ret = priv_flow_validate(priv, attr, items, actions, error, &flow);
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priv_unlock(priv);
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return ret;
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}
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/**
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* Convert Ethernet item to Verbs specification.
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*
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* @param item[in]
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* Item specification.
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* @param default_mask[in]
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* Default bit-masks to use when item->mask is not provided.
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* @param data[in, out]
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* User structure.
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*/
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static int
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mlx5_flow_create_eth(const struct rte_flow_item *item,
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const void *default_mask,
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void *data)
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{
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const struct rte_flow_item_eth *spec = item->spec;
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const struct rte_flow_item_eth *mask = item->mask;
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struct mlx5_flow *flow = (struct mlx5_flow *)data;
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struct ibv_exp_flow_spec_eth *eth;
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const unsigned int eth_size = sizeof(struct ibv_exp_flow_spec_eth);
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unsigned int i;
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++flow->ibv_attr->num_of_specs;
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flow->ibv_attr->priority = 2;
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eth = (void *)((uintptr_t)flow->ibv_attr + flow->offset);
|
||||
*eth = (struct ibv_exp_flow_spec_eth) {
|
||||
.type = IBV_EXP_FLOW_SPEC_ETH,
|
||||
.size = eth_size,
|
||||
};
|
||||
if (!spec)
|
||||
return 0;
|
||||
if (!mask)
|
||||
mask = default_mask;
|
||||
memcpy(eth->val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN);
|
||||
memcpy(eth->val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN);
|
||||
memcpy(eth->mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN);
|
||||
memcpy(eth->mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN);
|
||||
/* Remove unwanted bits from values. */
|
||||
for (i = 0; i < ETHER_ADDR_LEN; ++i) {
|
||||
eth->val.dst_mac[i] &= eth->mask.dst_mac[i];
|
||||
eth->val.src_mac[i] &= eth->mask.src_mac[i];
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert IPv4 item to Verbs specification.
|
||||
*
|
||||
* @param item[in]
|
||||
* Item specification.
|
||||
* @param default_mask[in]
|
||||
* Default bit-masks to use when item->mask is not provided.
|
||||
* @param data[in, out]
|
||||
* User structure.
|
||||
*/
|
||||
static int
|
||||
mlx5_flow_create_ipv4(const struct rte_flow_item *item,
|
||||
const void *default_mask,
|
||||
void *data)
|
||||
{
|
||||
const struct rte_flow_item_ipv4 *spec = item->spec;
|
||||
const struct rte_flow_item_ipv4 *mask = item->mask;
|
||||
struct mlx5_flow *flow = (struct mlx5_flow *)data;
|
||||
struct ibv_exp_flow_spec_ipv4 *ipv4;
|
||||
unsigned int ipv4_size = sizeof(struct ibv_exp_flow_spec_ipv4);
|
||||
|
||||
++flow->ibv_attr->num_of_specs;
|
||||
flow->ibv_attr->priority = 1;
|
||||
ipv4 = (void *)((uintptr_t)flow->ibv_attr + flow->offset);
|
||||
*ipv4 = (struct ibv_exp_flow_spec_ipv4) {
|
||||
.type = IBV_EXP_FLOW_SPEC_IPV4,
|
||||
.size = ipv4_size,
|
||||
};
|
||||
if (!spec)
|
||||
return 0;
|
||||
if (!mask)
|
||||
mask = default_mask;
|
||||
ipv4->val = (struct ibv_exp_flow_ipv4_filter){
|
||||
.src_ip = spec->hdr.src_addr,
|
||||
.dst_ip = spec->hdr.dst_addr,
|
||||
};
|
||||
ipv4->mask = (struct ibv_exp_flow_ipv4_filter){
|
||||
.src_ip = mask->hdr.src_addr,
|
||||
.dst_ip = mask->hdr.dst_addr,
|
||||
};
|
||||
/* Remove unwanted bits from values. */
|
||||
ipv4->val.src_ip &= ipv4->mask.src_ip;
|
||||
ipv4->val.dst_ip &= ipv4->mask.dst_ip;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert IPv6 item to Verbs specification.
|
||||
*
|
||||
* @param item[in]
|
||||
* Item specification.
|
||||
* @param default_mask[in]
|
||||
* Default bit-masks to use when item->mask is not provided.
|
||||
* @param data[in, out]
|
||||
* User structure.
|
||||
*/
|
||||
static int
|
||||
mlx5_flow_create_ipv6(const struct rte_flow_item *item,
|
||||
const void *default_mask,
|
||||
void *data)
|
||||
{
|
||||
const struct rte_flow_item_ipv6 *spec = item->spec;
|
||||
const struct rte_flow_item_ipv6 *mask = item->mask;
|
||||
struct mlx5_flow *flow = (struct mlx5_flow *)data;
|
||||
struct ibv_exp_flow_spec_ipv6 *ipv6;
|
||||
unsigned int ipv6_size = sizeof(struct ibv_exp_flow_spec_ipv6);
|
||||
unsigned int i;
|
||||
|
||||
++flow->ibv_attr->num_of_specs;
|
||||
flow->ibv_attr->priority = 1;
|
||||
ipv6 = (void *)((uintptr_t)flow->ibv_attr + flow->offset);
|
||||
*ipv6 = (struct ibv_exp_flow_spec_ipv6) {
|
||||
.type = IBV_EXP_FLOW_SPEC_IPV6,
|
||||
.size = ipv6_size,
|
||||
};
|
||||
if (!spec)
|
||||
return 0;
|
||||
if (!mask)
|
||||
mask = default_mask;
|
||||
memcpy(ipv6->val.src_ip, spec->hdr.src_addr,
|
||||
RTE_DIM(ipv6->val.src_ip));
|
||||
memcpy(ipv6->val.dst_ip, spec->hdr.dst_addr,
|
||||
RTE_DIM(ipv6->val.dst_ip));
|
||||
memcpy(ipv6->mask.src_ip, mask->hdr.src_addr,
|
||||
RTE_DIM(ipv6->mask.src_ip));
|
||||
memcpy(ipv6->mask.dst_ip, mask->hdr.dst_addr,
|
||||
RTE_DIM(ipv6->mask.dst_ip));
|
||||
/* Remove unwanted bits from values. */
|
||||
for (i = 0; i < RTE_DIM(ipv6->val.src_ip); ++i) {
|
||||
ipv6->val.src_ip[i] &= ipv6->mask.src_ip[i];
|
||||
ipv6->val.dst_ip[i] &= ipv6->mask.dst_ip[i];
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert UDP item to Verbs specification.
|
||||
*
|
||||
* @param item[in]
|
||||
* Item specification.
|
||||
* @param default_mask[in]
|
||||
* Default bit-masks to use when item->mask is not provided.
|
||||
* @param data[in, out]
|
||||
* User structure.
|
||||
*/
|
||||
static int
|
||||
mlx5_flow_create_udp(const struct rte_flow_item *item,
|
||||
const void *default_mask,
|
||||
void *data)
|
||||
{
|
||||
const struct rte_flow_item_udp *spec = item->spec;
|
||||
const struct rte_flow_item_udp *mask = item->mask;
|
||||
struct mlx5_flow *flow = (struct mlx5_flow *)data;
|
||||
struct ibv_exp_flow_spec_tcp_udp *udp;
|
||||
unsigned int udp_size = sizeof(struct ibv_exp_flow_spec_tcp_udp);
|
||||
|
||||
++flow->ibv_attr->num_of_specs;
|
||||
flow->ibv_attr->priority = 0;
|
||||
udp = (void *)((uintptr_t)flow->ibv_attr + flow->offset);
|
||||
*udp = (struct ibv_exp_flow_spec_tcp_udp) {
|
||||
.type = IBV_EXP_FLOW_SPEC_UDP,
|
||||
.size = udp_size,
|
||||
};
|
||||
if (!spec)
|
||||
return 0;
|
||||
if (!mask)
|
||||
mask = default_mask;
|
||||
udp->val.dst_port = spec->hdr.dst_port;
|
||||
udp->val.src_port = spec->hdr.src_port;
|
||||
udp->mask.dst_port = mask->hdr.dst_port;
|
||||
udp->mask.src_port = mask->hdr.src_port;
|
||||
/* Remove unwanted bits from values. */
|
||||
udp->val.src_port &= udp->mask.src_port;
|
||||
udp->val.dst_port &= udp->mask.dst_port;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert TCP item to Verbs specification.
|
||||
*
|
||||
* @param item[in]
|
||||
* Item specification.
|
||||
* @param default_mask[in]
|
||||
* Default bit-masks to use when item->mask is not provided.
|
||||
* @param data[in, out]
|
||||
* User structure.
|
||||
*/
|
||||
static int
|
||||
mlx5_flow_create_tcp(const struct rte_flow_item *item,
|
||||
const void *default_mask,
|
||||
void *data)
|
||||
{
|
||||
const struct rte_flow_item_tcp *spec = item->spec;
|
||||
const struct rte_flow_item_tcp *mask = item->mask;
|
||||
struct mlx5_flow *flow = (struct mlx5_flow *)data;
|
||||
struct ibv_exp_flow_spec_tcp_udp *tcp;
|
||||
unsigned int tcp_size = sizeof(struct ibv_exp_flow_spec_tcp_udp);
|
||||
|
||||
++flow->ibv_attr->num_of_specs;
|
||||
flow->ibv_attr->priority = 0;
|
||||
tcp = (void *)((uintptr_t)flow->ibv_attr + flow->offset);
|
||||
*tcp = (struct ibv_exp_flow_spec_tcp_udp) {
|
||||
.type = IBV_EXP_FLOW_SPEC_TCP,
|
||||
.size = tcp_size,
|
||||
};
|
||||
if (!spec)
|
||||
return 0;
|
||||
if (!mask)
|
||||
mask = default_mask;
|
||||
tcp->val.dst_port = spec->hdr.dst_port;
|
||||
tcp->val.src_port = spec->hdr.src_port;
|
||||
tcp->mask.dst_port = mask->hdr.dst_port;
|
||||
tcp->mask.src_port = mask->hdr.src_port;
|
||||
/* Remove unwanted bits from values. */
|
||||
tcp->val.src_port &= tcp->mask.src_port;
|
||||
tcp->val.dst_port &= tcp->mask.dst_port;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Complete flow rule creation.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
* @param ibv_attr
|
||||
* Verbs flow attributes.
|
||||
* @param action
|
||||
* Target action structure.
|
||||
* @param[out] error
|
||||
* Perform verbose error reporting if not NULL.
|
||||
*
|
||||
* @return
|
||||
* A flow if the rule could be created.
|
||||
*/
|
||||
static struct rte_flow *
|
||||
priv_flow_create_action_queue(struct priv *priv,
|
||||
struct ibv_exp_flow_attr *ibv_attr,
|
||||
struct mlx5_flow_action *action,
|
||||
struct rte_flow_error *error)
|
||||
{
|
||||
struct rxq_ctrl *rxq;
|
||||
struct rte_flow *rte_flow;
|
||||
|
||||
assert(priv->pd);
|
||||
assert(priv->ctx);
|
||||
rte_flow = rte_calloc(__func__, 1, sizeof(*rte_flow), 0);
|
||||
if (!rte_flow) {
|
||||
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "cannot allocate flow memory");
|
||||
return NULL;
|
||||
}
|
||||
if (action->drop) {
|
||||
rte_flow->cq =
|
||||
ibv_exp_create_cq(priv->ctx, 1, NULL, NULL, 0,
|
||||
&(struct ibv_exp_cq_init_attr){
|
||||
.comp_mask = 0,
|
||||
});
|
||||
if (!rte_flow->cq) {
|
||||
rte_flow_error_set(error, ENOMEM,
|
||||
RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "cannot allocate CQ");
|
||||
goto error;
|
||||
}
|
||||
rte_flow->wq = ibv_exp_create_wq(priv->ctx,
|
||||
&(struct ibv_exp_wq_init_attr){
|
||||
.wq_type = IBV_EXP_WQT_RQ,
|
||||
.max_recv_wr = 1,
|
||||
.max_recv_sge = 1,
|
||||
.pd = priv->pd,
|
||||
.cq = rte_flow->cq,
|
||||
});
|
||||
} else {
|
||||
rxq = container_of((*priv->rxqs)[action->queue_id],
|
||||
struct rxq_ctrl, rxq);
|
||||
rte_flow->rxq = &rxq->rxq;
|
||||
rte_flow->wq = rxq->wq;
|
||||
}
|
||||
rte_flow->ibv_attr = ibv_attr;
|
||||
rte_flow->ind_table = ibv_exp_create_rwq_ind_table(
|
||||
priv->ctx,
|
||||
&(struct ibv_exp_rwq_ind_table_init_attr){
|
||||
.pd = priv->pd,
|
||||
.log_ind_tbl_size = 0,
|
||||
.ind_tbl = &rte_flow->wq,
|
||||
.comp_mask = 0,
|
||||
});
|
||||
if (!rte_flow->ind_table) {
|
||||
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "cannot allocate indirection table");
|
||||
goto error;
|
||||
}
|
||||
rte_flow->qp = ibv_exp_create_qp(
|
||||
priv->ctx,
|
||||
&(struct ibv_exp_qp_init_attr){
|
||||
.qp_type = IBV_QPT_RAW_PACKET,
|
||||
.comp_mask =
|
||||
IBV_EXP_QP_INIT_ATTR_PD |
|
||||
IBV_EXP_QP_INIT_ATTR_PORT |
|
||||
IBV_EXP_QP_INIT_ATTR_RX_HASH,
|
||||
.pd = priv->pd,
|
||||
.rx_hash_conf = &(struct ibv_exp_rx_hash_conf){
|
||||
.rx_hash_function =
|
||||
IBV_EXP_RX_HASH_FUNC_TOEPLITZ,
|
||||
.rx_hash_key_len = rss_hash_default_key_len,
|
||||
.rx_hash_key = rss_hash_default_key,
|
||||
.rx_hash_fields_mask = 0,
|
||||
.rwq_ind_tbl = rte_flow->ind_table,
|
||||
},
|
||||
.port_num = priv->port,
|
||||
});
|
||||
if (!rte_flow->qp) {
|
||||
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "cannot allocate QP");
|
||||
goto error;
|
||||
}
|
||||
rte_flow->ibv_flow = ibv_exp_create_flow(rte_flow->qp,
|
||||
rte_flow->ibv_attr);
|
||||
if (!rte_flow->ibv_flow) {
|
||||
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "flow rule creation failure");
|
||||
goto error;
|
||||
}
|
||||
return rte_flow;
|
||||
error:
|
||||
assert(rte_flow);
|
||||
if (rte_flow->qp)
|
||||
ibv_destroy_qp(rte_flow->qp);
|
||||
if (rte_flow->ind_table)
|
||||
ibv_exp_destroy_rwq_ind_table(rte_flow->ind_table);
|
||||
if (!rte_flow->rxq && rte_flow->wq)
|
||||
ibv_exp_destroy_wq(rte_flow->wq);
|
||||
if (!rte_flow->rxq && rte_flow->cq)
|
||||
ibv_destroy_cq(rte_flow->cq);
|
||||
rte_free(rte_flow->ibv_attr);
|
||||
rte_free(rte_flow);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a flow.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
* @param[in] attr
|
||||
* Flow rule attributes.
|
||||
* @param[in] pattern
|
||||
* Pattern specification (list terminated by the END pattern item).
|
||||
* @param[in] actions
|
||||
* Associated actions (list terminated by the END action).
|
||||
* @param[out] error
|
||||
* Perform verbose error reporting if not NULL.
|
||||
*
|
||||
* @return
|
||||
* A flow on success, NULL otherwise.
|
||||
*/
|
||||
static struct rte_flow *
|
||||
priv_flow_create(struct priv *priv,
|
||||
const struct rte_flow_attr *attr,
|
||||
const struct rte_flow_item items[],
|
||||
const struct rte_flow_action actions[],
|
||||
struct rte_flow_error *error)
|
||||
{
|
||||
struct rte_flow *rte_flow;
|
||||
struct mlx5_flow_action action;
|
||||
struct mlx5_flow flow = { .offset = sizeof(struct ibv_exp_flow_attr), };
|
||||
int err;
|
||||
|
||||
err = priv_flow_validate(priv, attr, items, actions, error, &flow);
|
||||
if (err)
|
||||
goto exit;
|
||||
flow.ibv_attr = rte_malloc(__func__, flow.offset, 0);
|
||||
flow.offset = sizeof(struct ibv_exp_flow_attr);
|
||||
if (!flow.ibv_attr) {
|
||||
rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
|
||||
NULL, "cannot allocate ibv_attr memory");
|
||||
goto exit;
|
||||
}
|
||||
*flow.ibv_attr = (struct ibv_exp_flow_attr){
|
||||
.type = IBV_EXP_FLOW_ATTR_NORMAL,
|
||||
.size = sizeof(struct ibv_exp_flow_attr),
|
||||
.priority = attr->priority,
|
||||
.num_of_specs = 0,
|
||||
.port = 0,
|
||||
.flags = 0,
|
||||
.reserved = 0,
|
||||
};
|
||||
claim_zero(priv_flow_validate(priv, attr, items, actions,
|
||||
error, &flow));
|
||||
action = (struct mlx5_flow_action){
|
||||
.queue = 0,
|
||||
.drop = 0,
|
||||
};
|
||||
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
|
||||
if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) {
|
||||
continue;
|
||||
} else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
|
||||
action.queue = 1;
|
||||
action.queue_id =
|
||||
((const struct rte_flow_action_queue *)
|
||||
actions->conf)->index;
|
||||
} else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) {
|
||||
action.drop = 1;
|
||||
} else {
|
||||
rte_flow_error_set(error, ENOTSUP,
|
||||
RTE_FLOW_ERROR_TYPE_ACTION,
|
||||
actions, "unsupported action");
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
rte_flow = priv_flow_create_action_queue(priv, flow.ibv_attr,
|
||||
&action, error);
|
||||
return rte_flow;
|
||||
exit:
|
||||
rte_free(flow.ibv_attr);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
@ -74,15 +870,46 @@ mlx5_flow_create(struct rte_eth_dev *dev,
|
||||
const struct rte_flow_action actions[],
|
||||
struct rte_flow_error *error)
|
||||
{
|
||||
(void)dev;
|
||||
(void)attr;
|
||||
(void)items;
|
||||
(void)actions;
|
||||
(void)error;
|
||||
rte_flow_error_set(error, ENOTSUP,
|
||||
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
|
||||
NULL, "not implemented yet");
|
||||
return NULL;
|
||||
struct priv *priv = dev->data->dev_private;
|
||||
struct rte_flow *flow;
|
||||
|
||||
priv_lock(priv);
|
||||
flow = priv_flow_create(priv, attr, items, actions, error);
|
||||
if (flow) {
|
||||
LIST_INSERT_HEAD(&priv->flows, flow, next);
|
||||
DEBUG("Flow created %p", (void *)flow);
|
||||
}
|
||||
priv_unlock(priv);
|
||||
return flow;
|
||||
}
|
||||
|
||||
/**
|
||||
* Destroy a flow.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
* @param[in] flow
|
||||
* Flow to destroy.
|
||||
*/
|
||||
static void
|
||||
priv_flow_destroy(struct priv *priv,
|
||||
struct rte_flow *flow)
|
||||
{
|
||||
(void)priv;
|
||||
LIST_REMOVE(flow, next);
|
||||
if (flow->ibv_flow)
|
||||
claim_zero(ibv_exp_destroy_flow(flow->ibv_flow));
|
||||
if (flow->qp)
|
||||
claim_zero(ibv_destroy_qp(flow->qp));
|
||||
if (flow->ind_table)
|
||||
claim_zero(ibv_exp_destroy_rwq_ind_table(flow->ind_table));
|
||||
if (!flow->rxq && flow->wq)
|
||||
claim_zero(ibv_exp_destroy_wq(flow->wq));
|
||||
if (!flow->rxq && flow->cq)
|
||||
claim_zero(ibv_destroy_cq(flow->cq));
|
||||
rte_free(flow->ibv_attr);
|
||||
DEBUG("Flow destroyed %p", (void *)flow);
|
||||
rte_free(flow);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -96,13 +923,30 @@ mlx5_flow_destroy(struct rte_eth_dev *dev,
|
||||
struct rte_flow *flow,
|
||||
struct rte_flow_error *error)
|
||||
{
|
||||
(void)dev;
|
||||
(void)flow;
|
||||
struct priv *priv = dev->data->dev_private;
|
||||
|
||||
(void)error;
|
||||
rte_flow_error_set(error, ENOTSUP,
|
||||
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
|
||||
NULL, "not implemented yet");
|
||||
return -rte_errno;
|
||||
priv_lock(priv);
|
||||
priv_flow_destroy(priv, flow);
|
||||
priv_unlock(priv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Destroy all flows.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
*/
|
||||
static void
|
||||
priv_flow_flush(struct priv *priv)
|
||||
{
|
||||
while (!LIST_EMPTY(&priv->flows)) {
|
||||
struct rte_flow *flow;
|
||||
|
||||
flow = LIST_FIRST(&priv->flows);
|
||||
priv_flow_destroy(priv, flow);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
@ -115,10 +959,62 @@ int
|
||||
mlx5_flow_flush(struct rte_eth_dev *dev,
|
||||
struct rte_flow_error *error)
|
||||
{
|
||||
(void)dev;
|
||||
struct priv *priv = dev->data->dev_private;
|
||||
|
||||
(void)error;
|
||||
rte_flow_error_set(error, ENOTSUP,
|
||||
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
|
||||
NULL, "not implemented yet");
|
||||
return -rte_errno;
|
||||
priv_lock(priv);
|
||||
priv_flow_flush(priv);
|
||||
priv_unlock(priv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove all flows.
|
||||
*
|
||||
* Called by dev_stop() to remove all flows.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
*/
|
||||
void
|
||||
priv_flow_stop(struct priv *priv)
|
||||
{
|
||||
struct rte_flow *flow;
|
||||
|
||||
for (flow = LIST_FIRST(&priv->flows);
|
||||
flow;
|
||||
flow = LIST_NEXT(flow, next)) {
|
||||
claim_zero(ibv_exp_destroy_flow(flow->ibv_flow));
|
||||
flow->ibv_flow = NULL;
|
||||
DEBUG("Flow %p removed", (void *)flow);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Add all flows.
|
||||
*
|
||||
* @param priv
|
||||
* Pointer to private structure.
|
||||
*
|
||||
* @return
|
||||
* 0 on success, a errno value otherwise and rte_errno is set.
|
||||
*/
|
||||
int
|
||||
priv_flow_start(struct priv *priv)
|
||||
{
|
||||
struct rte_flow *flow;
|
||||
|
||||
for (flow = LIST_FIRST(&priv->flows);
|
||||
flow;
|
||||
flow = LIST_NEXT(flow, next)) {
|
||||
flow->ibv_flow = ibv_exp_create_flow(flow->qp,
|
||||
flow->ibv_attr);
|
||||
if (!flow->ibv_flow) {
|
||||
DEBUG("Flow %p cannot be applied", (void *)flow);
|
||||
rte_errno = EINVAL;
|
||||
return rte_errno;
|
||||
}
|
||||
DEBUG("Flow %p applied", (void *)flow);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -90,6 +90,7 @@ mlx5_dev_start(struct rte_eth_dev *dev)
|
||||
if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_NONE)
|
||||
priv_fdir_enable(priv);
|
||||
priv_dev_interrupt_handler_install(priv, dev);
|
||||
err = priv_flow_start(priv);
|
||||
priv_unlock(priv);
|
||||
return -err;
|
||||
}
|
||||
@ -120,6 +121,7 @@ mlx5_dev_stop(struct rte_eth_dev *dev)
|
||||
priv_mac_addrs_disable(priv);
|
||||
priv_destroy_hash_rxqs(priv);
|
||||
priv_fdir_disable(priv);
|
||||
priv_flow_stop(priv);
|
||||
priv_dev_interrupt_handler_uninstall(priv, dev);
|
||||
priv->started = 0;
|
||||
priv_unlock(priv);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user