Signed-off-by: Shirley Ma <xma@xxxxxxxxxx>
---
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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