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ramips: allow packets with ttl=0

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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>
This commit is contained in:
Felix Fietkau
2019-03-24 12:05:56 +01:00
parent 13eb73b278
commit 4336cfda12
1 changed files with 2 additions and 2 deletions
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4
target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.c
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@@ -370,8 +370,8 @@ static int mtk_ppe_start(struct mtk_eth *eth)
mtk_w32(eth, 0x55555555, MTK_REG_PPE_DFT_CPORT); mtk_w32(eth, 0x55555555, MTK_REG_PPE_DFT_CPORT);
#endif #endif
/* drop packets with TTL=0 */ /* allow packets with TTL=0 */
mtk_m32(eth, 0, MTK_PPE_GLO_CFG_TTL0_DROP, MTK_REG_PPE_GLO_CFG); mtk_m32(eth, MTK_PPE_GLO_CFG_TTL0_DROP, 0, MTK_REG_PPE_GLO_CFG);
/* send all traffic from gmac to the ppe */ /* send all traffic from gmac to the ppe */
mtk_m32(eth, 0xffff, 0x4444, MTK_GDMA_FWD_CFG(0)); mtk_m32(eth, 0xffff, 0x4444, MTK_GDMA_FWD_CFG(0));