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ixgbe: fail to create xfrm offload of IPsec tunnel mode SA

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Based on talks and indirect references ixgbe IPsec offlod do not
support IPsec tunnel mode offload. It can only support IPsec transport
mode offload. Now explicitly fail when creating non transport mode SA
with offload to avoid false performance expectations.

Fixes: 63a67fe229 ("ixgbe: add ipsec offload add and remove SA")
Signed-off-by: Antony Antony <antony@phenome.org>
Acked-by: Shannon Nelson <snelson@pensando.io>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Antony Antony 2020-10-14 16:17:48 +02:00 committed by Tony Nguyen
parent a9ecb0cbf0
commit d785e1fec6
2 changed files with 10 additions and 0 deletions
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5
drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
View file

@ -575,6 +575,11 @@ static int ixgbe_ipsec_add_sa(struct xfrm_state *xs)
return -EINVAL;
}
if (xs->props.mode != XFRM_MODE_TRANSPORT) {
netdev_err(dev, "Unsupported mode for ipsec offload\n");
return -EINVAL;
}
if (ixgbe_ipsec_check_mgmt_ip(xs)) {
netdev_err(dev, "IPsec IP addr clash with mgmt filters\n");
return -EINVAL;

5
drivers/net/ethernet/intel/ixgbevf/ipsec.c
View file

@ -272,6 +272,11 @@ static int ixgbevf_ipsec_add_sa(struct xfrm_state *xs)
return -EINVAL;
}
if (xs->props.mode != XFRM_MODE_TRANSPORT) {
netdev_err(dev, "Unsupported mode for ipsec offload\n");
return -EINVAL;
}
if (xs->xso.flags & XFRM_OFFLOAD_INBOUND) {
struct rx_sa rsa;