usbnet: add rx queue pausing

[pandora-kernel.git] / include / linux / usb / usbnet.h

diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 5d44059..0951425 100644 (file)
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -42,7 +42,6 @@ struct usbnet {
 
        /* protocol/interface state */
        struct net_device       *net;
-       struct net_device_stats stats;
        int                     msg_enable;
        unsigned long           data [5];
        u32                     xid;
@@ -54,6 +53,7 @@ struct usbnet {
        struct sk_buff_head     rxq;
        struct sk_buff_head     txq;
        struct sk_buff_head     done;
+       struct sk_buff_head     rxq_pause;
        struct urb              *interrupt;
        struct tasklet_struct   bh;
 
@@ -64,6 +64,7 @@ struct usbnet {
 #              define EVENT_RX_MEMORY  2
 #              define EVENT_STS_SPLIT  3
 #              define EVENT_LINK_RESET 4
+#              define EVENT_RX_PAUSED  5
 };
 
 static inline struct usb_driver *driver_of(struct usb_interface *intf)
@@ -87,6 +88,7 @@ struct driver_info {
 
 #define FLAG_FRAMING_AX 0x0040         /* AX88772/178 packets */
 #define FLAG_WLAN      0x0080          /* use "wlan%d" names */
+#define FLAG_AVOID_UNLINK_URBS 0x0100  /* don't unlink urbs at usbnet_stop() */
 
 
        /* init device ... can sleep, or cause probe() failure */
@@ -98,6 +100,9 @@ struct driver_info {
        /* reset device ... can sleep */
        int     (*reset)(struct usbnet *);
 
+       /* stop device ... can sleep */
+       int     (*stop)(struct usbnet *);
+
        /* see if peer is connected ... can sleep */
        int     (*check_connect)(struct usbnet *);
 
@@ -119,9 +124,8 @@ struct driver_info {
         * right after minidriver have initialized hardware. */
        int     (*early_init)(struct usbnet *dev);
 
-       /* called by minidriver when link state changes, state: 0=disconnect,
-        * 1=connect */
-       void    (*link_change)(struct usbnet *dev, int state);
+       /* called by minidriver when receiving indication */
+       void    (*indication)(struct usbnet *dev, void *ind, int indlen);
 
        /* for new devices, use the descriptor-reading code instead */
        int             in;             /* rx endpoint */
@@ -188,6 +192,10 @@ extern void usbnet_defer_kevent (struct usbnet *, int);
 extern void usbnet_skb_return (struct usbnet *, struct sk_buff *);
 extern void usbnet_unlink_rx_urbs(struct usbnet *);
 
+extern void usbnet_pause_rx(struct usbnet *);
+extern void usbnet_resume_rx(struct usbnet *);
+extern void usbnet_purge_paused_rxq(struct usbnet *);
+
 extern int usbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd);
 extern int usbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd);
 extern u32 usbnet_get_link (struct net_device *net);