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net: Support RXFCS feature flag.

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When set on hardware that supports the feature,
this causes the Ethernet FCS to be appended
to the end of the skb.

Useful for sniffing packets.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Ben Greear 2012-02-11 15:39:14 +00:00 • committed by Jeff Kirsher
parent 7c3a95a15a
commit 36eabda3d0
3 changed files with 9 additions and 0 deletions
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2
include/linux/netdev_features.h
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@ -54,6 +54,7 @@ enum {
NETIF_F_RXCSUM_BIT, /* Receive checksumming offload */
NETIF_F_NOCACHE_COPY_BIT, /* Use no-cache copyfromuser */
NETIF_F_LOOPBACK_BIT, /* Enable loopback */
NETIF_F_RXFCS_BIT, /* Append FCS to skb pkt data */
/*
* Add your fresh new feature above and remember to update
@ -98,6 +99,7 @@ enum {
#define NETIF_F_TSO __NETIF_F(TSO)
#define NETIF_F_UFO __NETIF_F(UFO)
#define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED)
#define NETIF_F_RXFCS __NETIF_F(RXFCS)
/* Features valid for ethtool to change */
/* = all defined minus driver/device-class-related */