This is a note to let you know that I've just added the patch titled
IB/mlx4: Use correct SL on AH query under RoCE
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-mlx4-use-correct-sl-on-ah-query-under-roce.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5e99b139f1b68acd65e36515ca347b03856dfb5a Mon Sep 17 00:00:00 2001
From: Noa Osherovich <noaos@xxxxxxxxxxxx>
Date: Thu, 30 Jul 2015 17:34:24 +0300
Subject: IB/mlx4: Use correct SL on AH query under RoCE
From: Noa Osherovich <noaos@xxxxxxxxxxxx>
commit 5e99b139f1b68acd65e36515ca347b03856dfb5a upstream.
The mlx4 IB driver implementation for ib_query_ah used a wrong offset
(28 instead of 29) when link type is Ethernet. Fixed to use the correct one.
Fixes: fa417f7b520e ('IB/mlx4: Add support for IBoE')
Signed-off-by: Shani Michaeli <shanim@xxxxxxxxxxxx>
Signed-off-by: Noa Osherovich <noaos@xxxxxxxxxxxx>
Signed-off-by: Or Gerlitz <ogerlitz@xxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx4/ah.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -147,9 +147,13 @@ int mlx4_ib_query_ah(struct ib_ah *ibah,
enum rdma_link_layer ll;
memset(ah_attr, 0, sizeof *ah_attr);
- ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
ah_attr->port_num = be32_to_cpu(ah->av.ib.port_pd) >> 24;
ll = rdma_port_get_link_layer(ibah->device, ah_attr->port_num);
+ if (ll == IB_LINK_LAYER_ETHERNET)
+ ah_attr->sl = be32_to_cpu(ah->av.eth.sl_tclass_flowlabel) >> 29;
+ else
+ ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
+
ah_attr->dlid = ll == IB_LINK_LAYER_INFINIBAND ? be16_to_cpu(ah->av.ib.dlid) : 0;
if (ah->av.ib.stat_rate)
ah_attr->static_rate = ah->av.ib.stat_rate - MLX4_STAT_RATE_OFFSET;
Patches currently in stable-queue which might be from noaos@xxxxxxxxxxxx are
queue-3.14/ib-mlx4-use-correct-sl-on-ah-query-under-roce.patch
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