diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2014-12-11 10:57:52 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-12-11 14:47:34 -0500 |
| commit | 383677da43fa83b390888cf7d25885166b2a6812 (patch) | |
| tree | 43bb00eb3d7c54d9d8e3df7d7a11be9103cf9cf4 | |
| parent | c58942f25232f8f0c8a6c8b803f31c7532cf2c3b (diff) | |
| download | linux-383677da43fa83b390888cf7d25885166b2a6812.tar.bz2 | |
net/mlx4_core: Mask out host side virtualization features for guests
When VFs (guests in this context) issue the QUERY_DEV_CAP command, they
need not be told that host side virtualization features such as VST, FSM
(MAC anti-spoofing) and running > 80 VFs are supported by the device.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/fw.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 4251f81a0275..5089f76f060b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -973,6 +973,10 @@ out: return err; } +#define DEV_CAP_EXT_2_FLAG_VLAN_CONTROL (1 << 26) +#define DEV_CAP_EXT_2_FLAG_80_VFS (1 << 21) +#define DEV_CAP_EXT_2_FLAG_FSM (1 << 20) + int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox, @@ -982,7 +986,7 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave, u64 flags; int err = 0; u8 field; - u32 bmme_flags; + u32 bmme_flags, field32; int real_port; int slave_port; int first_port; @@ -1053,6 +1057,12 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave, field &= ~0x80; MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_FLOW_STEERING_IPOIB_OFFSET); + /* turn off host side virt features (VST, FSM, etc) for guests */ + MLX4_GET(field32, outbox->buf, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET); + field32 &= ~(DEV_CAP_EXT_2_FLAG_VLAN_CONTROL | DEV_CAP_EXT_2_FLAG_80_VFS | + DEV_CAP_EXT_2_FLAG_FSM); + MLX4_PUT(outbox->buf, field32, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET); + return 0; } |