pktgen: ndo_start_xmit can return NET_XMIT_xxx values
This updates pktgen so that it does not decrement skb->users
when it receives valid NET_XMIT_xxx values. These are now
valid return values from ndo_start_xmit in net-next-2.6.
They also indicate the skb has been consumed.
This fixes pktgen to work correctly with vlan devices.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index a23b45f..de0c2c7 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -250,8 +250,7 @@
__u64 count; /* Default No packets to send */
__u64 sofar; /* How many pkts we've sent so far */
__u64 tx_bytes; /* How many bytes we've transmitted */
- __u64 errors; /* Errors when trying to transmit,
- pkts will be re-sent */
+ __u64 errors; /* Errors when trying to transmit, */
/* runtime counters relating to clone_skb */
@@ -3465,6 +3464,12 @@
pkt_dev->seq_num++;
pkt_dev->tx_bytes += pkt_dev->last_pkt_size;
break;
+ case NET_XMIT_DROP:
+ case NET_XMIT_CN:
+ case NET_XMIT_POLICED:
+ /* skb has been consumed */
+ pkt_dev->errors++;
+ break;
default: /* Drivers are not supposed to return other values! */
if (net_ratelimit())
pr_info("pktgen: %s xmit error: %d\n",