On 8/28/23 5:32 AM, Sriram Yagnaraman wrote:
> Route hints when the nexthop is part of a multipath group causes packets
> in the same receive batch to be sent to the same nexthop irrespective of
> the multipath hash of the packet. So, do not extract route hint for
> packets whose destination is part of a multipath group.
>
> A new SKB flag IPSKB_MULTIPATH is introduced for this purpose, set the
> flag when route is looked up in ip_mkroute_input() and use it in
> ip_extract_route_hint() to check for the existence of the flag.
>
> Fixes: 02b24941619f ("ipv4: use dst hint for ipv4 list receive")
> Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx>
> ---
> include/net/ip.h | 1 +
> net/ipv4/ip_input.c | 3 ++-
> net/ipv4/route.c | 1 +
> 3 files changed, 4 insertions(+), 1 deletion(-)
>
Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>
