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authorChuck Lever <chuck.lever@oracle.com>2017-04-09 20:05:44 +0300
committerJ. Bruce Fields <bfields@redhat.com>2017-04-26 00:25:54 +0300
commit6e6092ca305ad785c605d7e313727aad96c228a5 (patch)
tree51741ddf7ed22ce3a922c356dc54041b62026994 /include/linux/sunrpc
parent17f5f7f506aaca985b95df7ef7fc2ff49c36a8e9 (diff)
downloadlinux-6e6092ca305ad785c605d7e313727aad96c228a5.tar.xz
svcrdma: Add svc_rdma_map_reply_hdr()
Introduce a helper to DMA-map a reply's transport header before sending it. This will in part replace the map vector cache. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/svc_rdma.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 287db5c179d8..002a46d1faa1 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -228,6 +228,9 @@ extern int rdma_read_chunk_frmr(struct svcxprt_rdma *, struct svc_rqst *,
/* svc_rdma_sendto.c */
extern int svc_rdma_map_xdr(struct svcxprt_rdma *, struct xdr_buf *,
struct svc_rdma_req_map *, bool);
+extern int svc_rdma_map_reply_hdr(struct svcxprt_rdma *rdma,
+ struct svc_rdma_op_ctxt *ctxt,
+ __be32 *rdma_resp, unsigned int len);
extern int svc_rdma_post_send_wr(struct svcxprt_rdma *rdma,
struct svc_rdma_op_ctxt *ctxt,
int num_sge, u32 inv_rkey);