svcrdma: Move struct svc_rdma_chunk_ctxt to svc_rdma.h

Prepare for nestling these into the send and recv ctxts so they
no longer have to be allocated dynamically.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index ab250017b99f..50c4f18a9b7f 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -127,6 +127,21 @@ enum {
 
 #define RPCSVC_MAXPAYLOAD_RDMA	RPCSVC_MAXPAYLOAD
 
+/*
+ * A chunk context tracks all I/O for moving one Read or Write
+ * chunk. This is a set of rdma_rw's that handle data movement
+ * for all segments of one chunk.
+ */
+struct svc_rdma_chunk_ctxt {
+	struct rpc_rdma_cid	cc_cid;
+	struct ib_cqe		cc_cqe;
+	struct list_head	cc_rwctxts;
+	ktime_t			cc_posttime;
+	int			cc_sqecount;
+	enum ib_wc_status	cc_status;
+	struct completion	cc_done;
+};
+
 struct svc_rdma_recv_ctxt {
 	struct llist_node	rc_node;
 	struct list_head	rc_list;