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RDMA/mlx4: Fix uABI structure layouts for 32/64 compat

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rss_caps in struct mlx4_uverbs_ex_query_device_resp is misaligned on
32 bit compared to 64 bit, add explicit padding.

The rss caps were introduced recently and are very rarely used in user
space, mainly for DPDK.

We don't expect there to be a real 32 bit user, so this change is done
without compat considerations.

Fixes: 09d208b258 ("IB/mlx4: Add report for RSS capabilities by vendor channel")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2018-03-20 14:19:49 -06:00
parent 71e80a4781
commit 366380a0c8
1 changed files with 1 additions and 0 deletions
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include/uapi/rdma/mlx4-abi.h
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@ -183,6 +183,7 @@ struct mlx4_uverbs_ex_query_device_resp {
__u32 response_length;
__u64 hca_core_clock_offset;
__u32 max_inl_recv_sz;
__u32 reserved;
struct mlx4_ib_rss_caps rss_caps;
struct mlx4_ib_tso_caps tso_caps;
};