From: Bodong Wang <bodong@xxxxxxxxxxxx>
Report if enhanced multi packet send WQE is supported through mlx5
direct verbs.
Signed-off-by: Bodong Wang <bodong@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
providers/mlx5/man/mlx5dv_query_device.3 | 1 +
providers/mlx5/mlx5-abi.h | 1 +
providers/mlx5/mlx5.c | 3 +++
providers/mlx5/mlx5.h | 1 +
providers/mlx5/mlx5dv.h | 1 +
providers/mlx5/verbs.c | 3 +++
6 files changed, 10 insertions(+)
diff --git a/providers/mlx5/man/mlx5dv_query_device.3 b/providers/mlx5/man/mlx5dv_query_device.3
index c2f8bf4..9238b4f 100644
--- a/providers/mlx5/man/mlx5dv_query_device.3
+++ b/providers/mlx5/man/mlx5dv_query_device.3
@@ -37,6 +37,7 @@ enum mlx5dv_context_flags {
MLX5DV_CONTEXT_FLAGS_CQE_V1 = (1 << 0),
MLX5DV_CONTEXT_FLAGS_MPW = (1 << 1), /* Obsoleted */
MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED = (1 << 2), /* Multi packet WQE is allowed */
+ MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW = (1 << 3), /* Enhanced multi packet WQE is supported or not */
.in -8
};
.fi
diff --git a/providers/mlx5/mlx5-abi.h b/providers/mlx5/mlx5-abi.h
index c9d3ec2..a741801 100644
--- a/providers/mlx5/mlx5-abi.h
+++ b/providers/mlx5/mlx5-abi.h
@@ -276,6 +276,7 @@ struct mlx5_packet_pacing_caps {
enum mlx5_mpw_caps {
MLX5_MPW_RESERVED = 1 << 0, /* Obsoleted, don't use */
MLX5_ALLOW_MPW = 1 << 1,
+ MLX5_SUPPORT_EMPW = 1 << 2,
};
struct mlx5_query_device_ex_resp {
diff --git a/providers/mlx5/mlx5.c b/providers/mlx5/mlx5.c
index 84a67e9..e7adf14 100644
--- a/providers/mlx5/mlx5.c
+++ b/providers/mlx5/mlx5.c
@@ -633,6 +633,9 @@ int mlx5dv_query_device(struct ibv_context *ctx_in,
comp_mask_out |= MLX5DV_CONTEXT_MASK_CQE_COMPRESION;
}
+ if (mctx->vendor_cap_flags & MLX5_VENDOR_CAP_FLAGS_ENHANCED_MPW)
+ attrs_out->flags |= MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW;
+
attrs_out->comp_mask = comp_mask_out;
return 0;
diff --git a/providers/mlx5/mlx5.h b/providers/mlx5/mlx5.h
index c8d9fe9..42ccb57 100644
--- a/providers/mlx5/mlx5.h
+++ b/providers/mlx5/mlx5.h
@@ -184,6 +184,7 @@ enum {
enum mlx5_vendor_cap_flags {
MLX5_VENDOR_CAP_FLAGS_MPW = 1 << 0, /* Obsoleted */
MLX5_VENDOR_CAP_FLAGS_MPW_ALLOWED = 1 << 1,
+ MLX5_VENDOR_CAP_FLAGS_ENHANCED_MPW = 1 << 2,
};
enum {
diff --git a/providers/mlx5/mlx5dv.h b/providers/mlx5/mlx5dv.h
index cf49b63..c0d47c7 100644
--- a/providers/mlx5/mlx5dv.h
+++ b/providers/mlx5/mlx5dv.h
@@ -83,6 +83,7 @@ enum mlx5dv_context_flags {
MLX5DV_CONTEXT_FLAGS_CQE_V1 = (1 << 0),
MLX5DV_CONTEXT_FLAGS_MPW = (1 << 1), /* Obsoleted */
MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED = (1 << 2),
+ MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW = (1 << 3),
};
enum mlx5dv_cq_init_attr_mask {
diff --git a/providers/mlx5/verbs.c b/providers/mlx5/verbs.c
index 0e8a9a3..6c5e29f 100644
--- a/providers/mlx5/verbs.c
+++ b/providers/mlx5/verbs.c
@@ -1968,6 +1968,9 @@ int mlx5_query_device_ex(struct ibv_context *context,
if (resp.support_multi_pkt_send_wqe & MLX5_ALLOW_MPW)
mctx->vendor_cap_flags |= MLX5_VENDOR_CAP_FLAGS_MPW_ALLOWED;
+ if (resp.support_multi_pkt_send_wqe & MLX5_SUPPORT_EMPW)
+ mctx->vendor_cap_flags |= MLX5_VENDOR_CAP_FLAGS_ENHANCED_MPW;
+
mctx->cqe_comp_caps = resp.cqe_comp_caps;
major = (raw_fw_ver >> 32) & 0xffff;
--
1.8.3.1
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