diff options
| author |   Christoph Hellwig <hch@lst.de> | 2016-05-03 18:01:05 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-05-13 13:37:18 -0400 |
| commit | 002516edf5176dde2bee54addb7e6e8129a9532b (patch) | |
| tree | ae9a9073c9d468585e931d983d402d36aea3b26a /include/rdma | |
| parent | IB/core: Add passing an offset into the SG to ib_map_mr_sg (diff) | |
| download | linux-dev-002516edf5176dde2bee54addb7e6e8129a9532b.tar.xz linux-dev-002516edf5176dde2bee54addb7e6e8129a9532b.zip | |
IB/core: add a helper to check for READ WITH INVALIDATE support
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 24d0d82a07b4..9e8616af6899 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2318,6 +2318,18 @@ static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, device->add_gid && device->del_gid; } +/* + * Check if the device supports READ W/ INVALIDATE. + */ +static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) +{ + /* + * iWarp drivers must support READ W/ INVALIDATE. No other protocol + * has support for it yet. + */ + return rdma_protocol_iwarp(dev, port_num); +} + int ib_query_gid(struct ib_device *device, u8 port_num, int index, union ib_gid *gid, struct ib_gid_attr *attr); |