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authorFelix Fietkau <nbd@nbd.name>2019-03-24 12:05:56 +0100
committerFelix Fietkau <nbd@nbd.name>2019-03-24 12:10:15 +0100
commitbee7ff7cf34dfe66cf71c2e28faa1a03dbfc334c (patch)
treeb1a373c410efc82ac2d3d2214be005b5bdb78df6 /target/linux/ramips
parentacf149d531c0c263a2869abe09018e7e232a9e41 (diff)
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ramips: allow packets with ttl=0
Some broken ISPs (e.g. Comcast) send DHCPv6 packets with hop limit=0. This trips up the TTL=0 check in the PPE if enabled. Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target/linux/ramips')
-rw-r--r--target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_offload.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_offload.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_offload.c
index 5f9e6a6b07..6c23bbc036 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_offload.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_offload.c
@@ -384,8 +384,8 @@ static int mtk_ppe_start(struct mtk_eth *eth)
mtk_w32(eth, 0x55555555, MTK_REG_PPE_DFT_CPORT);
#endif
- /* drop packets with TTL=0 */
- mtk_m32(eth, 0, MTK_PPE_GLO_CFG_TTL0_DROP, MTK_REG_PPE_GLO_CFG);
+ /* allow packets with TTL=0 */
+ mtk_m32(eth, MTK_PPE_GLO_CFG_TTL0_DROP, 0, MTK_REG_PPE_GLO_CFG);
/* send all traffic from gmac to the ppe */
mtk_m32(eth, 0xffff, 0x4444, MTK_GDMA_FWD_CFG(0));