diff options
| author | Rui Salvaterra <rsalvaterra@gmail.com> | 2025-03-13 09:35:22 +0000 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-04-11 11:58:58 -0700 |
| commit | f9c961efb0f44b4319e73a3c40e831db2de4d074 (patch) | |
| tree | ea03d4eb12d84752d4e89b0dfc35c18d5cc9c91e /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | cdcb3804eeda24d588348bbab6766cf14fddbeaa (diff) | |
igc: enable HW vlan tag insertion/stripping by default
This is enabled by default in other Intel drivers I've checked (e1000, e1000e,
iavf, igb and ice). Fixes an out-of-the-box performance issue when running
OpenWrt on typical mini-PCs with igc-supported Ethernet controllers and 802.1Q
VLAN configurations, as ethtool isn't part of the default packages and sane
defaults are expected.
In my specific case, with an Intel N100-based machine with four I226-V Ethernet
controllers, my upload performance increased from under 30 Mb/s to the expected
~1 Gb/s.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index f1330379e6bb..30c72c343262 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -7125,6 +7125,9 @@ static int igc_probe(struct pci_dev *pdev, netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | NETDEV_XDP_ACT_XSK_ZEROCOPY; + /* enable HW vlan tag insertion/stripping by default */ + netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; + /* MTU range: 68 - 9216 */ netdev->min_mtu = ETH_MIN_MTU; netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE; |