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authorNeil Horman <nhorman@tuxdriver.com>2011-07-26 06:05:37 +0000
committerDavid S. Miller <davem@davemloft.net>2011-07-27 22:39:30 -0700
commitd8873315065f1f527c7c380402cf59b1e1d0ae36 (patch)
tree41a9c15f75b41657dd5370fe135f16c40b3eab64 /net/ethernet
parent894dc24ce75aa238ce96422a36b1537ccf2d8831 (diff)
downloadlinux-stericsson-d8873315065f1f527c7c380402cf59b1e1d0ae36.tar.gz
net: add IFF_SKB_TX_SHARED flag to priv_flags
Pktgen attempts to transmit shared skbs to net devices, which can't be used by some drivers as they keep state information in skbs. This patch adds a flag marking drivers as being able to handle shared skbs in their tx path. Drivers are defaulted to being unable to do so, but calling ether_setup enables this flag, as 90% of the drivers calling ether_setup touch real hardware and can handle shared skbs. A subsequent patch will audit drivers to ensure that the flag is set properly Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Reported-by: Jiri Pirko <jpirko@redhat.com> CC: Robert Olsson <robert.olsson@its.uu.se> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: Alexey Dobriyan <adobriyan@gmail.com> CC: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethernet')
-rw-r--r--net/ethernet/eth.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index b8453bd4b09c..27997d35ebd3 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -340,6 +340,7 @@ void ether_setup(struct net_device *dev)
dev->addr_len = ETH_ALEN;
dev->tx_queue_len = 1000; /* Ethernet wants good queues */
dev->flags = IFF_BROADCAST|IFF_MULTICAST;
+ dev->priv_flags = IFF_TX_SKB_SHARING;
memset(dev->broadcast, 0xFF, ETH_ALEN);