IB/mlx4: Enable 4K mtu for IBoE

The IBoE port MTU is derived from the corresponding Ethernet netdevice
MTU, which can support jumbo frames of 9K, and hence surely supports
the max IB mtu of 4K.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index fa643f4f4e28343ff08f1c38af5373a2c5bd719e..e953cf9ffac6757a60e3a84e16e9d3b47a18206f 100644 (file)
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -227,7 +227,7 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port,
        props->pkey_tbl_len     = 1;
        props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
        props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
-       props->max_mtu          = IB_MTU_2048;
+       props->max_mtu          = IB_MTU_4096;
        props->subnet_timeout   = 0;
        props->max_vl_num       = out_mad->data[37] >> 4;
        props->init_type_reply  = 0;