[ 3.8.y.z extended stable ] Patch "net/mlx4_core: VFs must ignore the enable_64b_cqe_eqe module param" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    net/mlx4_core: VFs must ignore the enable_64b_cqe_eqe module param

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.7.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 14ce495e3d46696ef854a09fd5f909aefa6e3241 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm at dev.mellanox.co.il>
Date: Thu, 1 Aug 2013 19:55:01 +0300
Subject: net/mlx4_core: VFs must ignore the enable_64b_cqe_eqe module param

[ Upstream commit b30513202c6c14120f70b2e9aa1e97d47bbc2313 ]

Slaves get the 64B CQE/EQE state from QUERY_HCA, not from the module parameter.

If the parameter is set to zero, the slave outputs an incorrect/irrelevant
warning message that 64B CQEs/EQEs are supported but not enabled (even if the
hypervisor has enabled 64B CQEs/EQEs).

Signed-off-by: Jack Morgenstein <jackm at dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz at mellanox.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/net/ethernet/mellanox/mlx4/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 5163af3..573a3a0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -371,7 +371,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)

 	dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;

-	if (!enable_64b_cqe_eqe) {
+	if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) {
 		if (dev_cap->flags &
 		    (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
 			mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
--
1.8.1.2