diff mbox series

[v3,10/21] xprtrdma: Increase maximum number of backchannel requests

Message ID 20190424133942.5077.2520.stgit@manet.1015granger.net (mailing list archive)
State New, archived
Headers show
Series NFS/RDMA patches for v5.2 | expand

Commit Message

Chuck Lever April 24, 2019, 1:39 p.m. UTC 
Reflects the change introduced in commit 067c46967160 ("NFSv4.1:
Bump the default callback session slot count to 16").

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 net/sunrpc/xprtrdma/xprt_rdma.h |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index b942c9d..7621e2d 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -103,12 +103,14 @@  struct rpcrdma_ep {
 
 /* Pre-allocate extra Work Requests for handling backward receives
  * and sends. This is a fixed value because the Work Queues are
- * allocated when the forward channel is set up.
+ * allocated when the forward channel is set up, long before the
+ * backchannel is provisioned. This value is two times
+ * NFS4_DEF_CB_SLOT_TABLE_SIZE.
  */
 #if defined(CONFIG_SUNRPC_BACKCHANNEL)
-#define RPCRDMA_BACKWARD_WRS		(8)
+#define RPCRDMA_BACKWARD_WRS (32)
 #else
-#define RPCRDMA_BACKWARD_WRS		(0)
+#define RPCRDMA_BACKWARD_WRS (0)
 #endif
 
 /* Registered buffer -- registered kmalloc'd memory for RDMA SEND/RECV