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authorSteffen Klassert <steffen.klassert@secunet.com>2017-12-20 10:41:36 +0100
committerSteffen Klassert <steffen.klassert@secunet.com>2017-12-20 10:41:36 +0100
commitf53c723902d1ac5f0b0a11d7c9dcbff748dde74e (patch)
tree50841e9a0ff29530ee84e262857333925e09f2ff /net/packet
parent3dca3f38cfb8efb8571040568cac7d0025fa5bb1 (diff)
downloadlinux-stericsson-f53c723902d1ac5f0b0a11d7c9dcbff748dde74e.tar.gz
net: Add asynchronous callbacks for xfrm on layer 2.
This patch implements asynchronous crypto callbacks and a backlog handler that can be used when IPsec is done at layer 2 in the TX path. It also extends the skb validate functions so that we can update the driver transmit return codes based on async crypto operation or to indicate that we queued the packet in a backlog queue. Joint work with: Aviv Heller <avivh@mellanox.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index da215e5c1399..ee7aa0ba3a67 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -247,12 +247,13 @@ static int packet_direct_xmit(struct sk_buff *skb)
struct sk_buff *orig_skb = skb;
struct netdev_queue *txq;
int ret = NETDEV_TX_BUSY;
+ bool again = false;
if (unlikely(!netif_running(dev) ||
!netif_carrier_ok(dev)))
goto drop;
- skb = validate_xmit_skb_list(skb, dev);
+ skb = validate_xmit_skb_list(skb, dev, &again);
if (skb != orig_skb)
goto drop;