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net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow 

[ Upstream commit 924531326e ]

The cache needs to be flushed to ensure that the hardware stops offloading
the flow immediately.

Fixes: 33fc42de33 ("net: ethernet: mtk_eth_soc: support creating mac address based offload entries")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230330120840.52079-3-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau 2023-03-30 14:08:40 +02:00 committed by Greg Kroah-Hartman
parent a7bd974edf
commit 106fb49b14
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/mediatek/mtk_ppe.c
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@ -438,6 +438,7 @@ __mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
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;