From: Saeed Mahameed <sae...@mellanox.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 6fa26208206c406fa529cd73f7ae6bf4181e270b upstream.

Report the correct speed in the port attributes when using a 56Gbps
ethernet link.  Without this change the field is incorrectly set to 10.

Fixes: a9c766bb75ee ('IB/mlx4: Fix info returned when querying IBoE ports')
Fixes: 2e96691c31ec ('IB: Use central enum for speed instead of hard-coded 
values')
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: Yishai Hadas <yish...@mellanox.com>
Signed-off-by: Daniel Jurgens <dani...@mellanox.com>
Signed-off-by: Leon Romanovsky <l...@kernel.org>
Signed-off-by: Doug Ledford <dledf...@redhat.com>
Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
 drivers/infiniband/hw/mlx4/main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c 
b/drivers/infiniband/hw/mlx4/main.c
index f0612645de99..9407a31afe20 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -335,9 +335,11 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 
port,
        if (err)
                goto out;
 
-       props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ?
-                                               IB_WIDTH_4X : IB_WIDTH_1X;
-       props->active_speed     = IB_SPEED_QDR;
+       props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ||
+                                  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+                                          IB_WIDTH_4X : IB_WIDTH_1X;
+       props->active_speed     =  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+                                          IB_SPEED_FDR : IB_SPEED_QDR;
        props->port_cap_flags   = IB_PORT_CM_SUP;
        props->gid_tbl_len      = mdev->dev->caps.gid_table_len[port];
        props->max_msg_sz       = mdev->dev->caps.max_msg_sz;
-- 
2.11.0

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