17 Jul
2023
17 Jul
'23
3:53 p.m.
Code that initialise a flowi4 structure manually before doing a fib
lookup can easily avoid overloading ->flowi4_tos with the RTO_ONLINK
bit. They can just set ->flowi4_scope correctly instead.
Properly separating the routing scope from ->flowi4_tos will allow to
eventually convert this field to dscp_t (to ensure proper separation
between DSCP and ECN).
Guillaume Nault (3):
gtp: Set TOS and routing scope independently for fib lookups.
dccp: Set TOS and routing scope independently for fib lookups.
sctp: Set TOS and routing scope independently for fib lookups.
drivers/net/gtp.c | 3 ++-
net/dccp/ipv4.c | 3 ++-
net/sctp/protocol.c | 3 ++-
3 files changed, 6 insertions(+), 3 deletions(-)
--
2.39.2
17 Jul
17 Jul
3:53 p.m.
New subject: [PATCH net-next 1/3] gtp: Set TOS and routing scope independently for fib lookups.
There's no reason for setting the RTO_ONLINK flag in ->flowi4_tos as
RT_CONN_FLAGS() does. We can easily set ->flowi4_scope properly
instead. This makes the code more explicit and will allow to convert
->flowi4_tos to dscp_t in the future.
Signed-off-by: Guillaume Nault <gnault(a)redhat.com>
---
drivers/net/gtp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index acb20ad4e37e..144ec626230d 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -243,7 +243,8 @@ static struct rtable *ip4_route_output_gtp(struct flowi4 *fl4,
fl4->flowi4_oif = sk->sk_bound_dev_if;
fl4->daddr = daddr;
fl4->saddr = saddr;
- fl4->flowi4_tos = RT_CONN_FLAGS(sk);
+ fl4->flowi4_tos = ip_sock_rt_tos(sk);
+ fl4->flowi4_scope = ip_sock_rt_scope(sk);
fl4->flowi4_proto = sk->sk_protocol;
return ip_route_output_key(sock_net(sk), fl4);
--
2.39.2
19 Jul
19 Jul
1:40 p.m.
Hello:
This series was applied to netdev/net-next.git (main)
by David S. Miller <davem(a)davemloft.net>et>:
On Mon, 17 Jul 2023 15:53:24 +0200 you wrote:
Code that initialise a flowi4 structure manually
before doing a fib
lookup can easily avoid overloading ->flowi4_tos with the RTO_ONLINK
bit. They can just set ->flowi4_scope correctly instead.
Properly separating the routing scope from ->flowi4_tos will allow to
eventually convert this field to dscp_t (to ensure proper separation
between DSCP and ECN).
[...]
Here is the summary with links:
- [net-next,1/3] gtp: Set TOS and routing scope independently for fib lookups.
https://git.kernel.org/netdev/net-next/c/b16b50476714
- [net-next,2/3] dccp: Set TOS and routing scope independently for fib lookups.
https://git.kernel.org/netdev/net-next/c/2d6c85ca3eb8
- [net-next,3/3] sctp: Set TOS and routing scope independently for fib lookups.
https://git.kernel.org/netdev/net-next/c/ba80e20d7f3f
You are awesome, thank you!
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