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authorFelix Fietkau <nbd@nbd.name>2019-03-24 12:05:56 +0100
committerFelix Fietkau <nbd@nbd.name>2019-03-24 12:12:09 +0100
commit4336cfda123af6a1f664e2288625f2b7e1d858d9 (patch)
treebffe812662005fea71767c9d9f2063eff48002e3 /target/linux
parent13eb73b2788d1526318fd89e8b9c5ad4a7d716b6 (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')
-rw-r--r--target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c
index 3001c081f7..9de3f67bca 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c
@@ -370,8 +370,8 @@ 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));