| Message ID | 20240626-linux-udpgso-v2-0-422dfcbd6b48@cloudflare.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Lift UDP_SEGMENT restriction for egress via device w/o csum offload | expand |
Hello: This series was applied to netdev/net-next.git (main) by Jakub Kicinski <kuba@kernel.org>: On Wed, 26 Jun 2024 19:51:25 +0200 you wrote: > This is a follow-up to an earlier question [1] if we can make UDP GSO work with > any egress device, even those with no checksum offload capability. That's the > default setup for TUN/TAP. > > Because there is a change in behavior - sendmsg() does no longer return EIO > error - I'm submitting through net-next tree, rather than net, as per Willem's > advice. > > [...] Here is the summary with links: - [net-next,v2,1/2] udp: Allow GSO transmit from devices with no checksum offload https://git.kernel.org/netdev/net-next/c/10154dbded6d - [net-next,v2,2/2] selftests/net: Add test coverage for UDP GSO software fallback https://git.kernel.org/netdev/net-next/c/3e400219c04d You are awesome, thank you!
This is a follow-up to an earlier question [1] if we can make UDP GSO work with any egress device, even those with no checksum offload capability. That's the default setup for TUN/TAP. Because there is a change in behavior - sendmsg() does no longer return EIO error - I'm submitting through net-next tree, rather than net, as per Willem's advice. [1] https://lore.kernel.org/netdev/87jzqsld6q.fsf@cloudflare.com/ To: netdev@vger.kernel.org Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Willem de Bruijn <willemb@google.com> Cc: kernel-team@cloudflare.com Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Changes in v2: - Fixup ip link arguments order (Jakub) - Describe performance impact compared to regular sendmsg (Willem) - Link to v1: https://lore.kernel.org/r/20240622-linux-udpgso-v1-0-d2344157ab2a@cloudflare.com --- Jakub Sitnicki (2): udp: Allow GSO transmit from devices with no checksum offload selftests/net: Add test coverage for UDP GSO software fallback net/ipv4/udp.c | 3 +-- net/ipv4/udp_offload.c | 8 +++++++ net/ipv6/udp.c | 3 +-- tools/testing/selftests/net/udpgso.c | 15 +++++++++--- tools/testing/selftests/net/udpgso.sh | 43 +++++++++++++++++++++++++++++++++++ 5 files changed, 65 insertions(+), 7 deletions(-)