dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/mlx4: Report TSO capabilities

Browse Source 
Report to the user area the TSO device capabilities, it includes the
max_tso size and the QP types that support it.

The TSO is applicable only when when of the ports is ETH and the device
supports it.

uresp logic around rss_caps is updated to fix a till-now harmless bug
computing the length of the structure to copy. The code did not handle the
implicit padding before rss_caps correctly. This is necessay to copy
tss_caps successfully.

Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas
2018-03-15 15:58:05 -06:00
committed by Jason Gunthorpe
parent 546b1452fd
commit 9c71172c4a
2 changed files with 29 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/uapi/rdma/mlx4-abi.h
+9
View File
@@ -170,12 +170,21 @@ enum query_device_resp_mask {
MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0,
};
struct mlx4_ib_tso_caps {
__u32 max_tso; /* Maximum tso payload size in bytes */
/* Corresponding bit will be set if qp type from
* 'enum ib_qp_type' is supported.
*/
__u32 supported_qpts;
};
struct mlx4_uverbs_ex_query_device_resp {
__u32 comp_mask;
__u32 response_length;
__u64 hca_core_clock_offset;
__u32 max_inl_recv_sz;
struct mlx4_ib_rss_caps rss_caps;
struct mlx4_ib_tso_caps tso_caps;
};
#endif /* MLX4_ABI_USER_H */