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authorNoa Osherovich <noaos@mellanox.com>2017-08-17 15:52:28 +0300
committerDoug Ledford <dledford@redhat.com>2017-08-24 17:47:34 -0400
commit96dc3fc5f1d66b20cdf839d571c7b907e08d5d00 (patch)
tree769438a0d8b1c54c1437545acbbe46dc4c94ff0b /include/uapi/rdma
parent4b7ee6781f6aab3d236021af36aa4c95a089f402 (diff)
IB/mlx5: Expose software parsing for Raw Ethernet QP
Software parsing (SWP) is a feature that can be used to instruct the device to stop using its internal parser and to parse packets on the transmit path according to offsets set for each packets. Through this feature, the device allows the handling of checksum and LSO by the hardware according to the location of IP and TCP/UDP headers. Enable SW parsing on Raw Ethernet send queue by default if firmware supports it and report these capabilities to user space. Signed-off-by: Noa Osherovich <noaos@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/uapi/rdma')
-rw-r--r--include/uapi/rdma/mlx5-abi.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index 0b3d30837a9f..64d398e662cd 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -168,6 +168,22 @@ struct mlx5_packet_pacing_caps {
__u32 reserved;
};
+enum mlx5_ib_sw_parsing_offloads {
+ MLX5_IB_SW_PARSING = 1 << 0,
+ MLX5_IB_SW_PARSING_CSUM = 1 << 1,
+ MLX5_IB_SW_PARSING_LSO = 1 << 2,
+};
+
+struct mlx5_ib_sw_parsing_caps {
+ __u32 sw_parsing_offloads; /* enum mlx5_ib_sw_parsing_offloads */
+
+ /* Corresponding bit will be set if qp type from
+ * 'enum ib_qp_type' is supported, e.g.
+ * supported_qpts |= 1 << IB_QPT_RAW_PACKET
+ */
+ __u32 supported_qpts;
+};
+
struct mlx5_ib_query_device_resp {
__u32 comp_mask;
__u32 response_length;
@@ -177,6 +193,7 @@ struct mlx5_ib_query_device_resp {
struct mlx5_packet_pacing_caps packet_pacing_caps;
__u32 mlx5_ib_support_multi_pkt_send_wqes;
__u32 reserved;
+ struct mlx5_ib_sw_parsing_caps sw_parsing_caps;
};
struct mlx5_ib_create_cq {

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