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authorChuck Lever <chuck.lever@oracle.com>2019-04-24 16:39:42 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-04-25 22:19:26 +0300
commit4ba02e8d0ea5461d0e55e76c91481f1153f63365 (patch)
tree031a0313b77534130a34868f3ea7ed4079b09ce1 /net/sunrpc
parent3f9c7e76934790c53a48b11c7ad54770cd3ae50d (diff)
downloadlinux-4ba02e8d0ea5461d0e55e76c91481f1153f63365.tar.xz
xprtrdma: Increase maximum number of backchannel requests
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> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/xprt_rdma.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index b942c9d322a7..7621e2d0f107 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