* [PATCH net-next] net: ip6_tunnel: use tunnel parameters for fill_forward_path route lookup
@ 2026-07-08 12:48 Lorenzo Bianconi
2026-07-08 15:42 ` David Ahern
0 siblings, 1 reply; 2+ messages in thread
From: Lorenzo Bianconi @ 2026-07-08 12:48 UTC (permalink / raw)
To: David Ahern, Ido Schimmel, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Simon Horman, Pablo Neira Ayuso,
Florian Westphal
Cc: netdev, netfilter-devel, Lorenzo Bianconi
Pass source address, output interface and flowlabel (carrying TClass
and flow label) from the tunnel configuration to the flowi6 struct in
ip6_tnl_fill_forward_path(), aligning the route lookup with the slow
path in ipxip6_tnl_xmit().
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
net/ipv6/ip6_tunnel.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index bf8e40af60b0..557d8637ac57 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1847,6 +1847,10 @@ static int ip6_tnl_fill_forward_path(struct net_device_path_ctx *ctx,
struct ip6_tnl *t = netdev_priv(ctx->dev);
struct flowi6 fl6 = {
.daddr = t->parms.raddr,
+ .saddr = t->parms.laddr,
+ .flowi6_oif = t->parms.link,
+ .flowlabel = t->parms.flowinfo &
+ (IPV6_TCLASS_MASK | IPV6_FLOWLABEL_MASK),
};
struct dst_entry *dst;
int err;
---
base-commit: 08030ddb87b4c6c6a2c03c82731b5e188f02f5b9
change-id: 20260708-ip6ip6-route-lookup-fill_forward_path-9fc45a9118e9
Best regards,
--
Lorenzo Bianconi <lorenzo@kernel.org>
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH net-next] net: ip6_tunnel: use tunnel parameters for fill_forward_path route lookup
2026-07-08 12:48 [PATCH net-next] net: ip6_tunnel: use tunnel parameters for fill_forward_path route lookup Lorenzo Bianconi
@ 2026-07-08 15:42 ` David Ahern
0 siblings, 0 replies; 2+ messages in thread
From: David Ahern @ 2026-07-08 15:42 UTC (permalink / raw)
To: Lorenzo Bianconi, Ido Schimmel, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Simon Horman, Pablo Neira Ayuso,
Florian Westphal
Cc: netdev, netfilter-devel
On 7/8/26 6:48 AM, Lorenzo Bianconi wrote:
> Pass source address, output interface and flowlabel (carrying TClass
> and flow label) from the tunnel configuration to the flowi6 struct in
> ip6_tnl_fill_forward_path(), aligning the route lookup with the slow
> path in ipxip6_tnl_xmit().
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
> net/ipv6/ip6_tunnel.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
> index bf8e40af60b0..557d8637ac57 100644
> --- a/net/ipv6/ip6_tunnel.c
> +++ b/net/ipv6/ip6_tunnel.c
> @@ -1847,6 +1847,10 @@ static int ip6_tnl_fill_forward_path(struct net_device_path_ctx *ctx,
> struct ip6_tnl *t = netdev_priv(ctx->dev);
> struct flowi6 fl6 = {
> .daddr = t->parms.raddr,
> + .saddr = t->parms.laddr,
> + .flowi6_oif = t->parms.link,
> + .flowlabel = t->parms.flowinfo &
> + (IPV6_TCLASS_MASK | IPV6_FLOWLABEL_MASK),
> };
> struct dst_entry *dst;
> int err;
>
> ---
> base-commit: 08030ddb87b4c6c6a2c03c82731b5e188f02f5b9
> change-id: 20260708-ip6ip6-route-lookup-fill_forward_path-9fc45a9118e9
>
> Best regards,
Reviewed-by: David Ahern <dsahern@kernel.org>
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