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authorGuy Levi <guyle@mellanox.com>2017-07-04 16:24:26 +0300
committerDoug Ledford <dledford@redhat.com>2017-07-24 10:45:53 -0400
commit3078f5f1bd8b6c8aef77b8ef4d49671fa6eb058e (patch)
treed97ed3b34b7557b66597db74afd4dbe76675658e /include/uapi
parentb8d46ca035060e70f5f0da849d86720752d5aa17 (diff)
IB/mlx4: Add support for RSS QP
Add support to work with a RSS QP by using an indirection table object upon QP creation. Other related QP verbs (e.g. modify/destroy/query) were updated as well for that QP mode. Notes: - The RX hash properties are supplied as driver private data. - The RSS QP port is used on the associated WQs in its indirection table. Applying different ports during WQ life time is not allowed. - The expected RSS QP flow is: create, modify(RST->INIT), modify(RST->RTR), destroy. Signed-off-by: Guy Levi <guyle@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/rdma/mlx4-abi.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/uapi/rdma/mlx4-abi.h b/include/uapi/rdma/mlx4-abi.h
index 5591d955ba00..d915cab37ec3 100644
--- a/include/uapi/rdma/mlx4-abi.h
+++ b/include/uapi/rdma/mlx4-abi.h
@@ -95,6 +95,16 @@ struct mlx4_ib_create_srq_resp {
__u32 reserved;
};
+struct mlx4_ib_create_qp_rss {
+ __u64 rx_hash_fields_mask;
+ __u8 rx_hash_function;
+ __u8 rx_key_len;
+ __u8 reserved[6];
+ __u8 rx_hash_key[40];
+ __u32 comp_mask;
+ __u32 reserved1;
+};
+
struct mlx4_ib_create_qp {
__u64 buf_addr;
__u64 db_addr;
@@ -123,4 +133,27 @@ struct mlx4_ib_create_rwq_ind_tbl_resp {
__u32 response_length;
__u32 reserved;
};
+
+/* RX Hash function flags */
+enum mlx4_ib_rx_hash_function_flags {
+ MLX4_IB_RX_HASH_FUNC_TOEPLITZ = 1 << 0,
+};
+
+/*
+ * RX Hash flags, these flags allows to set which incoming packet's field should
+ * participates in RX Hash. Each flag represent certain packet's field,
+ * when the flag is set the field that is represented by the flag will
+ * participate in RX Hash calculation.
+ */
+enum mlx4_ib_rx_hash_fields {
+ MLX4_IB_RX_HASH_SRC_IPV4 = 1 << 0,
+ MLX4_IB_RX_HASH_DST_IPV4 = 1 << 1,
+ MLX4_IB_RX_HASH_SRC_IPV6 = 1 << 2,
+ MLX4_IB_RX_HASH_DST_IPV6 = 1 << 3,
+ MLX4_IB_RX_HASH_SRC_PORT_TCP = 1 << 4,
+ MLX4_IB_RX_HASH_DST_PORT_TCP = 1 << 5,
+ MLX4_IB_RX_HASH_SRC_PORT_UDP = 1 << 6,
+ MLX4_IB_RX_HASH_DST_PORT_UDP = 1 << 7
+};
+
#endif /* MLX4_ABI_USER_H */

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