From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Mon, 10 Oct 2011 08:53:41 +0000 (+0200)
Subject: IB/mlx4: Enable 4K mtu for IBoE
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bcacb897569f0e7aab7643b22567d8de22ef9dfc;p=mv-sheeva.git

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 fa643f4f4e2..e953cf9ffac 100644
--- 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;