diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/733-v6.3-21-net-ethernet-mtk_eth_soc-add-missing-ppe-cache-flush.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/733-v6.3-21-net-ethernet-mtk_eth_soc-add-missing-ppe-cache-flush.patch | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/733-v6.3-21-net-ethernet-mtk_eth_soc-add-missing-ppe-cache-flush.patch b/target/linux/generic/backport-5.15/733-v6.3-21-net-ethernet-mtk_eth_soc-add-missing-ppe-cache-flush.patch new file mode 100644 index 0000000000..7742b0925b --- /dev/null +++ b/target/linux/generic/backport-5.15/733-v6.3-21-net-ethernet-mtk_eth_soc-add-missing-ppe-cache-flush.patch @@ -0,0 +1,21 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Thu, 23 Mar 2023 11:19:14 +0100 +Subject: [PATCH] net: ethernet: mtk_eth_soc: add missing ppe cache flush when + deleting a flow + +The cache needs to be flushed to ensure that the hardware stops offloading +the flow immediately. + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/drivers/net/ethernet/mediatek/mtk_ppe.c ++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c +@@ -464,6 +464,7 @@ __mtk_foe_entry_clear(struct mtk_ppe *pp + hwe->ib1 &= ~MTK_FOE_IB1_STATE; + hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_INVALID); + dma_wmb(); ++ mtk_ppe_cache_clear(ppe); + } + entry->hash = 0xffff; + |