spinlock_t req_lock; /* guard {rx,tx}_reqs */
struct list_head tx_reqs, rx_reqs;
- atomic_t tx_qlen;
+ unsigned tx_qlen;
struct sk_buff_head rx_frames;
spin_unlock(&dev->req_lock);
dev_kfree_skb_any(skb);
- atomic_dec(&dev->tx_qlen);
if (netif_carrier_ok(dev->net))
netif_wake_queue(dev->net);
}
req->length = length;
- /* throttle high/super speed IRQ rate back slightly */
- if (gadget_is_dualspeed(dev->gadget))
- req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH ||
- dev->gadget->speed == USB_SPEED_SUPER)
- ? ((atomic_read(&dev->tx_qlen) % qmult) != 0)
- : 0;
+ /* throttle highspeed IRQ rate back slightly */
+ if (gadget_is_dualspeed(dev->gadget) &&
+ (dev->gadget->speed == USB_SPEED_HIGH)) {
+ dev->tx_qlen++;
+ if (dev->tx_qlen == qmult) {
+ req->no_interrupt = 0;
+ dev->tx_qlen = 0;
+ } else {
+ req->no_interrupt = 1;
+ }
+ } else {
+ req->no_interrupt = 0;
+ }
retval = usb_ep_queue(in, req, GFP_ATOMIC);
switch (retval) {
break;
case 0:
net->trans_start = jiffies;
- atomic_inc(&dev->tx_qlen);
}
if (retval) {
rx_fill(dev, gfp_flags);
/* and open the tx floodgates */
- atomic_set(&dev->tx_qlen, 0);
+ dev->tx_qlen = 0;
netif_wake_queue(dev->net);
}