From 09d208b258a2e012aad399b80a9595c4aa95e6dc Mon Sep 17 00:00:00 2001 From: Guy Levi Date: Wed, 25 Oct 2017 22:39:34 +0300 Subject: [PATCH] IB/mlx4: Add report for RSS capabilities by vendor channel The mlx4's RSS patches submission missed a report of RSS capabilities which should be reported by the vendor channel in query_device. Signed-off-by: Guy Levi Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx4/main.c | 17 +++++++++++++++++ drivers/infiniband/hw/mlx4/mlx4_ib.h | 16 +++++++++++----- 2 files changed, 28 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index c636842c5be0..d8f0b94f1dc4 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -581,6 +581,23 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, sizeof(struct mlx4_wqe_data_seg); } + if (uhw->outlen >= resp.response_length + sizeof(resp.rss_caps)) { + resp.response_length += sizeof(resp.rss_caps); + if (props->rss_caps.supported_qpts) { + resp.rss_caps.rx_hash_function = + MLX4_IB_RX_HASH_FUNC_TOEPLITZ; + resp.rss_caps.rx_hash_fields_mask = + MLX4_IB_RX_HASH_SRC_IPV4 | + MLX4_IB_RX_HASH_DST_IPV4 | + MLX4_IB_RX_HASH_SRC_IPV6 | + MLX4_IB_RX_HASH_DST_IPV6 | + MLX4_IB_RX_HASH_SRC_PORT_TCP | + MLX4_IB_RX_HASH_DST_PORT_TCP | + MLX4_IB_RX_HASH_SRC_PORT_UDP | + MLX4_IB_RX_HASH_DST_PORT_UDP; + } + } + if (uhw->outlen) { err = ib_copy_to_udata(uhw, &resp, resp.response_length); if (err) diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index 1fa19820355a..d09d4e7b2706 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -644,12 +644,18 @@ enum query_device_resp_mask { QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0, }; +struct mlx4_ib_rss_caps { + __u64 rx_hash_fields_mask; /* enum mlx4_rx_hash_fields */ + __u8 rx_hash_function; /* enum mlx4_rx_hash_function_flags */ + __u8 reserved[7]; +}; + struct mlx4_uverbs_ex_query_device_resp { - __u32 comp_mask; - __u32 response_length; - __u64 hca_core_clock_offset; - __u32 max_inl_recv_sz; - __u32 reserved; + __u32 comp_mask; + __u32 response_length; + __u64 hca_core_clock_offset; + __u32 max_inl_recv_sz; + struct mlx4_ib_rss_caps rss_caps; }; static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) -- 2.11.0