diff mbox series

[net-next,v3,3/4] net: ethernet: mtk_eth_soc: add support for configuring vlan rx offload

Message ID 20221110212212.96825-4-nbd@nbd.name (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series mtk_eth_soc rx vlan offload improvement + dsa hardware untag support | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 7 this patch: 7
netdev/cc_maintainers success CCed 12 of 12 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 7 this patch: 7
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 35 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Felix Fietkau Nov. 10, 2022, 9:22 p.m. UTC
Keep the vlan rx offload feature in sync across all netdevs belonging to the
device, since the feature is global and can't be turned off per MAC

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 25 ++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 891dd6937f89..a118c715b09b 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2724,15 +2724,30 @@  static netdev_features_t mtk_fix_features(struct net_device *dev,
 
 static int mtk_set_features(struct net_device *dev, netdev_features_t features)
 {
-	int err = 0;
+	struct mtk_mac *mac = netdev_priv(dev);
+	struct mtk_eth *eth = mac->hw;
+	netdev_features_t diff = dev->features ^ features;
+	int i;
 
-	if (!((dev->features ^ features) & NETIF_F_LRO))
+	if ((diff & NETIF_F_LRO) && !(features & NETIF_F_LRO))
+		mtk_hwlro_netdev_disable(dev);
+
+	/* Set RX VLAN offloading */
+	if (!(diff & NETIF_F_HW_VLAN_CTAG_RX))
 		return 0;
 
-	if (!(features & NETIF_F_LRO))
-		mtk_hwlro_netdev_disable(dev);
+	mtk_w32(eth, !!(features & NETIF_F_HW_VLAN_CTAG_RX),
+		MTK_CDMP_EG_CTRL);
 
-	return err;
+	/* sync features with other MAC */
+	for (i = 0; i < MTK_MAC_COUNT; i++) {
+		if (!eth->netdev[i] || eth->netdev[i] == dev)
+			continue;
+		eth->netdev[i]->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
+		eth->netdev[i]->features |= features & NETIF_F_HW_VLAN_CTAG_RX;
+	}
+
+	return 0;
 }
 
 /* wait for DMA to finish whatever it is doing before we start using it again */