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| author | Yuki Taguchi <tagyounit@gmail.com> | 2020-01-20 13:48:37 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 16:43:14 +0100 |
| commit | d3c0a8be8bbbf3f67ccd88909993b802886b6b18 (patch) | |
| tree | d5869736fe91ec80128d4723982580b5afd127e7 /drivers | |
| parent | d3b5ecceea7dc3ce36c5306b3e45bd75cd192291 (diff) | |
ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions
[ Upstream commit 62ebaeaedee7591c257543d040677a60e35c7aec ]
After LRO/GRO is applied, SRv6 encapsulated packets have
SKB_GSO_IPXIP6 feature flag, and this flag must be removed right after
decapulation procedure.
Currently, SKB_GSO_IPXIP6 flag is not removed on End.D* actions, which
creates inconsistent packet state, that is, a normal TCP/IP packets
have the SKB_GSO_IPXIP6 flag. This behavior can cause unexpected
fallback to GSO on routing to netdevices that do not support
SKB_GSO_IPXIP6. For example, on inter-VRF forwarding, decapsulated
packets separated into small packets by GSO because VRF devices do not
support TSO for packets with SKB_GSO_IPXIP6 flag, and this degrades
forwarding performance.
This patch removes encapsulation related GSO flags from the skb right
after the End.D* action is applied.
Fixes: d7a669dd2f8b ("ipv6: sr: add helper functions for seg6local")
Signed-off-by: Yuki Taguchi <tagyounit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions