Messages in this thread Patch in this message | | | Subject | [RFC PATCH V2 2/5] Add a new device flag for zero copy | From | Shirley Ma <> | Date | Fri, 10 Dec 2010 01:57:55 -0800 |
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Signed-off-by: Shirley Ma <xma@us.ibm.com> ---
include/linux/netdevice.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index d8fd2c2..7207665 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -857,6 +857,9 @@ struct net_device { #define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */ #define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ +/* bit 29 is for device to map userspace buffers -- zerocopy */ +#define NETIF_F_ZEROCOPY (1 << 29) + /* Segmentation offload features */ #define NETIF_F_GSO_SHIFT 16 #define NETIF_F_GSO_MASK 0x00ff0000
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