IB/rxe: increase max MR limit

Increase the max MR limit to support more I/O queues
for NVMe over Fabrics hosts.
Signed-off-by: NVijay Immanuel <vijayi@attalasystems.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/sw/rxe/rxe_param.h

@@ -83,7 +83,7 @@ enum rxe_device_param {
 	RXE_MAX_SGE_RD			= 32,
 	RXE_MAX_CQ			= 16384,
 	RXE_MAX_LOG_CQE			= 15,
-	RXE_MAX_MR			= 2 * 1024,
+	RXE_MAX_MR			= 256 * 1024,
 	RXE_MAX_PD			= 0x7ffc,
 	RXE_MAX_QP_RD_ATOM		= 128,
 	RXE_MAX_EE_RD_ATOM		= 0,