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authorOr Gerlitz <ogerlitz@mellanox.com>2015-07-22 16:53:46 +0300
committerDavid S. Miller <davem@davemloft.net>2015-07-26 16:29:25 -0700
commit178d23e3cd4811ebe702d60ac31e8bee389a5847 (patch)
tree084e59e1c2f18649551b3c742f48aafc5930b328 /drivers/net/ethernet/mellanox/mlx4/main.c
parentbridge: netlink: fix slave_changelink/br_setport race conditions (diff)
downloadlinux-dev-178d23e3cd4811ebe702d60ac31e8bee389a5847.tar.xz
linux-dev-178d23e3cd4811ebe702d60ac31e8bee389a5847.zip
net/mlx4_core: Use sink counter for the VF default as fallback
Some old PF drivers don't let VFs allocate counters, in that case, use the sink counter so the VF can load and operate properly. Fixes: 6de5f7f6a1fa ('net/mlx4_core: Allocate default counter per port') Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 12fbfcb44d8a..29c2a017a450 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2273,6 +2273,11 @@ static int mlx4_allocate_default_counters(struct mlx4_dev *dev)
} else if (err == -ENOENT) {
err = 0;
continue;
+ } else if (mlx4_is_slave(dev) && err == -EINVAL) {
+ priv->def_counter[port] = MLX4_SINK_COUNTER_INDEX(dev);
+ mlx4_warn(dev, "can't allocate counter from old PF driver, using index %d\n",
+ MLX4_SINK_COUNTER_INDEX(dev));
+ err = 0;
} else {
mlx4_err(dev, "%s: failed to allocate default counter port %d err %d\n",
__func__, port + 1, err);