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| author | Daniel Kranzdorf <dkkranzd@amazon.com> | 2019-11-21 15:15:09 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-11-25 15:31:48 +0100 |
| commit | 666e8ff535d401eb286fa20446e55ae984d91049 (patch) | |
| tree | dc47d090c6a880a268a1c1070bb363d3b60bb764 /include | |
| parent | RDMA/efa: Support remote read access in MR registration (diff) | |
| download | linux-666e8ff535d401eb286fa20446e55ae984d91049.tar.xz linux-666e8ff535d401eb286fa20446e55ae984d91049.zip | |
RDMA/efa: Expose RDMA read related attributes
Query the device attributes for RDMA operations, including maximum
transfer size and maximum number of SGEs per RDMA WR, and report them
back to the userspace library.
Link: https://lore.kernel.org/r/20191121141509.59297-4-galpress@amazon.com
Signed-off-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/rdma/efa-abi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/uapi/rdma/efa-abi.h b/include/uapi/rdma/efa-abi.h index 9599a2a62be8..53b6e2036a9b 100644 --- a/include/uapi/rdma/efa-abi.h +++ b/include/uapi/rdma/efa-abi.h @@ -90,12 +90,18 @@ struct efa_ibv_create_ah_resp { __u8 reserved_30[2]; }; +enum { + EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0, +}; + struct efa_ibv_ex_query_device_resp { __u32 comp_mask; __u32 max_sq_wr; __u32 max_rq_wr; __u16 max_sq_sge; __u16 max_rq_sge; + __u32 max_rdma_size; + __u32 device_caps; }; #endif /* EFA_ABI_USER_H */ |