Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a3fb57fde62333cbf823b854e8330ccca278bf85..2b0266484c8442f7d2571e848a5315ebe4bb11cc 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -246,11 +246,16 @@ struct hh_cache
  *
  * We could use other alignment values, but we must maintain the
  * relationship HH alignment <= LL alignment.
+ *
+ * LL_ALLOCATED_SPACE also takes into account the tailroom the device
+ * may need.
  */
 #define LL_RESERVED_SPACE(dev) \
-       (((dev)->hard_header_len&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+       ((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 #define LL_RESERVED_SPACE_EXTRA(dev,extra) \
-       ((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+       ((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+#define LL_ALLOCATED_SPACE(dev) \
+       ((((dev)->hard_header_len+(dev)->needed_headroom+(dev)->needed_tailroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 
 struct header_ops {
        int     (*create) (struct sk_buff *skb, struct net_device *dev,
@@ -509,10 +514,12 @@ struct net_device
 #define NETIF_F_NETNS_LOCAL    8192    /* Does not change network namespaces */
 #define NETIF_F_MULTI_QUEUE    16384   /* Has multiple TX/RX queues */
 #define NETIF_F_LRO            32768   /* large receive offload */
+#define NETIF_F_VLAN_TSO       65536   /* Supports TSO for VLANs */
+#define NETIF_F_VLAN_CSUM      131072  /* Supports TX checksumming for VLANs */
 
        /* Segmentation offload features */
-#define NETIF_F_GSO_SHIFT      16
-#define NETIF_F_GSO_MASK       0xffff0000
+#define NETIF_F_GSO_SHIFT      20
+#define NETIF_F_GSO_MASK       0xfff00000
 #define NETIF_F_TSO            (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
 #define NETIF_F_UFO            (SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
 #define NETIF_F_GSO_ROBUST     (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
@@ -569,6 +576,13 @@ struct net_device
        unsigned short          type;   /* interface hardware type      */
        unsigned short          hard_header_len;        /* hardware hdr length  */
 
+       /* extra head- and tailroom the hardware may need, but not in all cases
+        * can this be guaranteed, especially tailroom. Some cases also use
+        * LL_MAX_HEADER instead to allocate the skb.
+        */
+       unsigned short          needed_headroom;
+       unsigned short          needed_tailroom;
+
        struct net_device       *master; /* Pointer to master device of a group,
                                          * which this device is member of.
                                          */