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authorLeon Romanovsky <leonro@nvidia.com>2023-07-19 11:26:56 +0200
committerPaolo Abeni <pabeni@redhat.com>2023-07-25 15:08:57 +0200
commit89edf40220be8e68922beb54a06fdfc66f743c39 (patch)
tree8e7c8f49fadc252d3efaf5797a4f5d18ce5c713c /net/xfrm
parentnet/mlx5e: Support IPsec NAT-T functionality (diff)
downloadlinux-89edf40220be8e68922beb54a06fdfc66f743c39.tar.xz
linux-89edf40220be8e68922beb54a06fdfc66f743c39.zip
xfrm: Support UDP encapsulation in packet offload mode
Since mlx5 supports UDP encapsulation in packet offload, change the XFRM core to allow users to configure it. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_device.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 533697e2488f..3784534c9185 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -247,12 +247,6 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
return -EINVAL;
}
- /* We don't yet support UDP encapsulation and TFC padding. */
- if (x->encap || x->tfcpad) {
- NL_SET_ERR_MSG(extack, "Encapsulation and TFC padding can't be offloaded");
- return -EINVAL;
- }
-
if (xuo->flags &
~(XFRM_OFFLOAD_IPV6 | XFRM_OFFLOAD_INBOUND | XFRM_OFFLOAD_PACKET)) {
NL_SET_ERR_MSG(extack, "Unrecognized flags in offload request");
@@ -260,6 +254,13 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
}
is_packet_offload = xuo->flags & XFRM_OFFLOAD_PACKET;
+
+ /* We don't yet support UDP encapsulation and TFC padding. */
+ if ((!is_packet_offload && x->encap) || x->tfcpad) {
+ NL_SET_ERR_MSG(extack, "Encapsulation and TFC padding can't be offloaded");
+ return -EINVAL;
+ }
+
dev = dev_get_by_index(net, xuo->ifindex);
if (!dev) {
if (!(xuo->flags & XFRM_OFFLOAD_INBOUND)) {