RDMA/cma: Increase the IB CM retry count in CMA

3 seems like a low number of IB Communication Manager retries to set;
we see connections failing under stress, and in any case 3 just looks
like an arbitrary number.  15 is the max value allowed by the
InfiniBand spec.

Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Sean Hefty <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index d6f99d5720fcf2b12051898fc336a2e1691e882a..5d625a81193f079ea2f38272ed03b0381f9e1b0e 100644 (file)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -49,7 +49,7 @@ MODULE_DESCRIPTION("Generic RDMA CM Agent");
 MODULE_LICENSE("Dual BSD/GPL");
 
 #define CMA_CM_RESPONSE_TIMEOUT 20
-#define CMA_MAX_CM_RETRIES 3
+#define CMA_MAX_CM_RETRIES 15
 
 static void cma_add_one(struct ib_device *device);
 static void cma_remove_one(struct ib_device *device);