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xfrm: Support UDP encapsulation in packet offload mode

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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>
This commit is contained in:
Leon Romanovsky 2023-07-19 12:26:56 +03:00 committed by Paolo Abeni
parent d659549349
commit 89edf40220
1 changed files with 7 additions and 6 deletions
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13
net/xfrm/xfrm_device.c
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@ -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)) {