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| author | Andy Grover <andy.grover@oracle.com> | 2009-10-30 08:54:53 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-30 15:06:37 -0700 |
| commit | 244546f0d3101c5441f5b14cfe8a79d62679eaea (patch) | |
| tree | 52ba3f802e695e6b052aeb3c38ae76fb5f5f0be6 /net/rds/rdma.h | |
| parent | 6639104bd826e0b1388c69a6b7564fffc636c8a8 (diff) | |
| download | blackbird-op-linux-244546f0d3101c5441f5b14cfe8a79d62679eaea.tar.gz blackbird-op-linux-244546f0d3101c5441f5b14cfe8a79d62679eaea.zip | |
RDS: Add GET_MR_FOR_DEST sockopt
RDS currently supports a GET_MR sockopt to establish a
memory region (MR) for a chunk of memory. However, the fastreg
method ties a MR to a particular destination. The GET_MR_FOR_DEST
sockopt allows the remote machine to be specified, and thus
support for fastreg (aka FRWRs).
Note that this patch does *not* do all of this - it simply
implements the new sockopt in terms of the old one, so applications
can begin to use the new sockopt in preparation for cutover to
FRWRs.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/rdma.h')
| -rw-r--r-- | net/rds/rdma.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rdma.h b/net/rds/rdma.h index 425512098b0b..909c39835a5d 100644 --- a/net/rds/rdma.h +++ b/net/rds/rdma.h @@ -61,6 +61,7 @@ static inline u32 rds_rdma_cookie_offset(rds_rdma_cookie_t cookie) } int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen); +int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen); int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen); void rds_rdma_drop_keys(struct rds_sock *rs); int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm, |
