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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:47:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:58:48 -0300 |
| commit | a5cdf7364020a61375af3c8aa23e09181f5c2c6c (patch) | |
| tree | 6a7aacf0e34c69ae57200ba59eafda251b3e0e80 /include/linux/mlx5/device.h | |
| parent | 394569928e2f17dff4ae367ac700048138e318c7 (diff) | |
Linux-libre 4.5.3-gnupck-4.5.3-gnu
Diffstat (limited to 'include/linux/mlx5/device.h')
| -rw-r--r-- | include/linux/mlx5/device.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 987764afa..f8b837929 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -363,6 +363,17 @@ enum { MLX5_CAP_OFF_CMDIF_CSUM = 46, }; +enum { + /* + * Max wqe size for rdma read is 512 bytes, so this + * limits our max_sge_rd as the wqe needs to fit: + * - ctrl segment (16 bytes) + * - rdma segment (16 bytes) + * - scatter elements (16 bytes each) + */ + MLX5_MAX_SGE_RD = (512 - 16 - 16) / 16 +}; + struct mlx5_inbox_hdr { __be16 opcode; u8 rsvd[4]; |