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authorAndy Grover <andy.grover@oracle.com>2009-10-30 08:54:53 +0000
committerDavid S. Miller <davem@davemloft.net>2009-10-30 15:06:37 -0700
commit244546f0d3101c5441f5b14cfe8a79d62679eaea (patch)
tree52ba3f802e695e6b052aeb3c38ae76fb5f5f0be6 /net/rds/rdma.h
parent6639104bd826e0b1388c69a6b7564fffc636c8a8 (diff)
downloadblackbird-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.h1
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,
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