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| author | Sriram Yagnaraman <sriram.yagnaraman@est.tech> | 2023-08-31 11:03:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-19 13:20:26 +0300 |
| commit | 160fdb4116e723a5aedd681ed614815c00517654 (patch) | |
| tree | 0eed84b529411da0c95acf29902cd3fb2114a720 /include | |
| parent | 29039819c66234f8c2c2ba3f59ad8d8a5ce602be (diff) | |
| download | linux-160fdb4116e723a5aedd681ed614815c00517654.tar.xz | |
ipv4: ignore dst hint for multipath routes
[ Upstream commit 6ac66cb03ae306c2e288a9be18226310529f5b25 ]
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@est.tech>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 8d1173577fb5..9be2efe00f2c 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -56,6 +56,7 @@ struct inet_skb_parm { #define IPSKB_FRAG_PMTU BIT(6) #define IPSKB_L3SLAVE BIT(7) #define IPSKB_NOPOLICY BIT(8) +#define IPSKB_MULTIPATH BIT(9) u16 frag_max_size; }; |