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SubjectRe: [PATCH V3 2/8] Add a new zerocopy device flag
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Resubmit this patch with the new bit.

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 0249fe7..0998d3d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1067,6 +1067,9 @@ struct net_device {
#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */
#define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */

+/* Bit 30 is for device to map userspace buffers -- zerocopy */
+#define NETIF_F_ZEROCOPY (1 << 30)
+
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
#define NETIF_F_GSO_MASK 0x00ff0000



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