diff options
| author | Hadar Hen Zion <hadarh@mellanox.com> | 2015-07-27 14:46:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-27 15:00:36 -0700 |
| commit | 77fc29c4bbbbd01ee22c50ce8260fd0f2e08c124 (patch) | |
| tree | 2f82cc8116136695d0301745223e22ea8ca7ae2b /drivers/net/ethernet/mellanox/mlx4/main.c | |
| parent | 0b42c2863b3b9f79c42f0b877249007e5adfc921 (diff) | |
net/mlx4_core: Preparations for 802.1ad VLAN support
mlx4_core preparation to support hardware accelerated 802.1ad VLAN
device.
To allow 802.1ad accelerated device, "packet has vlan" (phv)
Firmware capability should be available. Firmware without the
phv capability won't behave properly and can't support 802.1ad device
acceleration.
The driver checks the Firmware capability and sets the phv bit
accordingly in SET_PORT command.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index d76f4257e305..6f35b6c06193 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -405,6 +405,21 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.max_gso_sz = dev_cap->max_gso_sz; dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz; + if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) { + struct mlx4_init_hca_param hca_param; + + memset(&hca_param, 0, sizeof(hca_param)); + err = mlx4_QUERY_HCA(dev, &hca_param); + /* Turn off PHV_EN flag in case phv_check_en is set. + * phv_check_en is a HW check that parse the packet and verify + * phv bit was reported correctly in the wqe. To allow QinQ + * PHV_EN flag should be set and phv_check_en must be cleared + * otherwise QinQ packets will be drop by the HW. + */ + if (err || hca_param.phv_check_en) + dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_PHV_EN; + } + /* Sense port always allowed on supported devices for ConnectX-1 and -2 */ if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT) dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT; |