diff options
| author | Andre Guedes <andre.guedes@intel.com> | 2020-04-23 18:11:19 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-05-19 15:29:17 -0700 |
| commit | 12ddee68d058792602d017ea940a69fe6969edbe (patch) | |
| tree | 2c6267eaad92312af88d89a585e766375a0900d6 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | 2e4f1716f31f3486fa454fd3174f3de982b1dcaa (diff) | |
| download | lwn-12ddee68d058792602d017ea940a69fe6969edbe.tar.gz lwn-12ddee68d058792602d017ea940a69fe6969edbe.zip | |
igc: Refactor VLAN priority filtering code
The whole VLAN priority filtering code is implemented in igc_ethtool.c
and mixes logic from ethtool and core parts. This patch refactors it so
core logic is moved to igc_main.c, aligning the VLAN priority filtering
code organization with the MAC address filtering code.
This patch also takes the opportunity to add some log messages to ease
debugging.
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 125026d053eb..7e59c0393dbc 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -2314,6 +2314,58 @@ int igc_del_mac_filter(struct igc_adapter *adapter, const u8 *addr, return 0; } +/** + * igc_add_vlan_prio_filter() - Add VLAN priority filter + * @adapter: Pointer to adapter where the filter should be added + * @prio: VLAN priority value + * @queue: Queue number which matching frames are assigned to + * + * Return: 0 in case of success, negative errno code otherwise. + */ +int igc_add_vlan_prio_filter(struct igc_adapter *adapter, int prio, int queue) +{ + struct net_device *dev = adapter->netdev; + struct igc_hw *hw = &adapter->hw; + u32 vlanpqf; + + vlanpqf = rd32(IGC_VLANPQF); + + if (vlanpqf & IGC_VLANPQF_VALID(prio)) { + netdev_dbg(dev, "VLAN priority filter already in use\n"); + return -EEXIST; + } + + vlanpqf |= IGC_VLANPQF_QSEL(prio, queue); + vlanpqf |= IGC_VLANPQF_VALID(prio); + + wr32(IGC_VLANPQF, vlanpqf); + + netdev_dbg(dev, "Add VLAN priority filter: prio %d queue %d\n", + prio, queue); + return 0; +} + +/** + * igc_del_vlan_prio_filter() - Delete VLAN priority filter + * @adapter: Pointer to adapter where the filter should be deleted from + * @prio: VLAN priority value + */ +void igc_del_vlan_prio_filter(struct igc_adapter *adapter, int prio) +{ + struct igc_hw *hw = &adapter->hw; + u32 vlanpqf; + + vlanpqf = rd32(IGC_VLANPQF); + + vlanpqf &= ~IGC_VLANPQF_VALID(prio); + vlanpqf &= ~IGC_VLANPQF_QSEL(prio, IGC_VLANPQF_QUEUE_MASK); + + wr32(IGC_VLANPQF, vlanpqf); + + netdev_dbg(adapter->netdev, "Delete VLAN priority filter: prio %d\n", + prio); +} + static int igc_uc_sync(struct net_device *netdev, const unsigned char *addr) { struct igc_adapter *adapter = netdev_priv(netdev); |