On 11/19/2017 6:56 PM, Yishai Hadas wrote:
From: Guy Levi <guyle@xxxxxxxxxxxx>
Report few extra RSS capabilities that were missed in previous patches.
Signed-off-by: Guy Levi <guyle@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
The matching kernel part was already merged into 4.15.
PR was sent:
https://github.com/linux-rdma/rdma-core/pull/256
providers/mlx4/mlx4-abi.h | 8 +++++++-
providers/mlx4/verbs.c | 3 +++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/providers/mlx4/mlx4-abi.h b/providers/mlx4/mlx4-abi.h
index 4f2132c..c4783d2 100644
--- a/providers/mlx4/mlx4-abi.h
+++ b/providers/mlx4/mlx4-abi.h
@@ -99,13 +99,19 @@ struct mlx4_resize_cq {
__u64 buf_addr;
};
+struct mlx4_rss_caps {
+ __u64 rx_hash_fields_mask; /* enum ibv_rx_hash_fields */
+ __u8 rx_hash_function; /* enum ibv_rx_hash_function_flags */
+ __u8 reserved[7];
+};
+
struct mlx4_query_device_ex_resp {
struct ibv_query_device_resp_ex ibv_resp;
__u32 comp_mask;
__u32 response_length;
__u64 hca_core_clock_offset;
__u32 max_inl_recv_sz;
- __u32 reserved;
+ struct mlx4_rss_caps rss_caps; /* vendor data channel */
};
struct mlx4_query_device_ex {
diff --git a/providers/mlx4/verbs.c b/providers/mlx4/verbs.c
index 8532882..8a2773f 100644
--- a/providers/mlx4/verbs.c
+++ b/providers/mlx4/verbs.c
@@ -87,6 +87,9 @@ int mlx4_query_device_ex(struct ibv_context *context,
if (err)
return err;
+ attr->rss_caps.rx_hash_fields_mask = resp.rss_caps.rx_hash_fields_mask;
+ attr->rss_caps.rx_hash_function = resp.rss_caps.rx_hash_function;
+
if (resp.comp_mask & MLX4_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET) {
mctx->core_clock.offset = resp.hca_core_clock_offset;
mctx->core_clock.offset_valid = 1;
Thanks, merged.
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