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| author | Guy Levi <guyle@mellanox.com> | 2019-04-10 10:59:45 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-04-18 03:13:41 -0300 |
| commit | 7249c8ea227a582c14f63e9e8853eb7369122f10 (patch) | |
| tree | a500c90d8df51d0a158d15600e3bc820c12288c8 /include | |
| parent | 7c39f7f671d2acc0a1f39ebbbee4303ad499bbfa (diff) | |
| download | linux-7249c8ea227a582c14f63e9e8853eb7369122f10.tar.bz2 | |
IB/mlx5: Fix scatter to CQE in DCT QP creation
When scatter to CQE is enabled on a DCT QP it corrupts the mailbox command
since it tried to treat it as as QP create mailbox command instead of a
DCT create command.
The corrupted mailbox command causes userspace to malfunction as the
device doesn't create the QP as expected.
A new mlx5 capability is exposed to user-space which ensures that it will
not enable the feature on DCT without this fix in the kernel.
Fixes: 5d6ff1babe78 ("IB/mlx5: Support scatter to CQE for DC transport type")
Signed-off-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/rdma/mlx5-abi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h index 87b3198f4b5d..f4d4010b7e3e 100644 --- a/include/uapi/rdma/mlx5-abi.h +++ b/include/uapi/rdma/mlx5-abi.h @@ -238,6 +238,7 @@ enum mlx5_ib_query_dev_resp_flags { MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP = 1 << 0, MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD = 1 << 1, MLX5_IB_QUERY_DEV_RESP_PACKET_BASED_CREDIT_MODE = 1 << 2, + MLX5_IB_QUERY_DEV_RESP_FLAGS_SCAT2CQE_DCT = 1 << 3, }; enum mlx5_ib_tunnel_offloads { |