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| author | Or Gerlitz <ogerlitz@mellanox.com> | 2015-06-14 17:13:06 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-15 16:42:57 -0700 |
| commit | ac0a72a3e6e8d817f60ce4d9a8f3b43dc256d847 (patch) | |
| tree | 2d5981bc1fa8c4e856b15f240b9a05a3012e89b4 /drivers/net | |
| parent | 2d45a02d0166caf2627fe91897c6ffc3b19514c4 (diff) | |
| download | linux-ac0a72a3e6e8d817f60ce4d9a8f3b43dc256d847.tar.gz linux-ac0a72a3e6e8d817f60ce4d9a8f3b43dc256d847.tar.bz2 linux-ac0a72a3e6e8d817f60ce4d9a8f3b43dc256d847.zip | |
net/mlx4_core: Disable Granular QoS per VF under IB/Eth VPI configuration
Due to firmware bug, under VPI configuration when port1 = IB and
port2 = Eth, Granular QoS per VF isn't working properly. More over,
the whole QP0/QP1 Para-Virtualization in the mlx4 IB driver is
broken on that config.
Hence, we must disable Granular QoS per VF under that configuration
till a fix is introduced. Once that happens, a new device capability
will be used to mark the feature support on that specific configuration.
Reported-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index ced5ecab5aa7..68b5a5563af7 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -479,6 +479,14 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) } } + if (mlx4_is_master(dev) && (dev->caps.num_ports == 2) && + (port_type_array[0] == MLX4_PORT_TYPE_IB) && + (port_type_array[1] == MLX4_PORT_TYPE_ETH)) { + mlx4_warn(dev, + "Granular QoS per VF not supported with IB/Eth configuration\n"); + dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_QOS_VPP; + } + dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters); dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps; |