sunvnet: add VIO v1.7 and v1.8 support

This patch adds support for VIO v1.7 (extended descriptor format)
and v1.8 (receive-side checksumming) to the sunvnet driver.

Signed-off-by: David L Stevens <david.stevens@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index d758c8d8f47d..fb124feb363b 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -247,6 +247,25 @@ struct vio_net_desc {
         struct ldc_trans_cookie cookies[0];
 };
 
+struct vio_net_dext {
+        u8              flags;
+#define VNET_PKT_HASH                   0x01
+#define VNET_PKT_HCK_IPV4_HDRCKSUM      0x02
+#define VNET_PKT_HCK_FULLCKSUM          0x04
+#define VNET_PKT_IPV4_LSO               0x08
+#define VNET_PKT_HCK_IPV4_HDRCKSUM_OK   0x10
+#define VNET_PKT_HCK_FULLCKSUM_OK       0x20
+
+        u8              vnet_hashval;
+        u16             ipv4_lso_mss;
+        u32             resv3;
+};
+
+static inline struct vio_net_dext *vio_net_ext(struct vio_net_desc *desc)
+{
+        return (struct vio_net_dext *)&desc->cookies[2];
+}
+
 #define VIO_MAX_RING_COOKIES    24
 
 struct vio_dring_state {