#include <asm/xen/hypercall.h>
#include <asm/xen/page.h>
+/* Provide an option to disable split event channels at load time as
+ * event channels are limited resource. Split event channels are
+ * enabled by default.
+ */
+bool separate_tx_rx_irq = 1;
+module_param(separate_tx_rx_irq, bool, 0644);
+
/*
* This is the maximum slots a skb can have. If a guest sends a skb
* which exceeds this limit it is considered malicious.
{
struct xenvif *vif = NULL, *tmp;
s8 status;
- u16 irq, flags;
+ u16 flags;
struct xen_netif_rx_response *resp;
struct sk_buff_head rxq;
struct sk_buff *skb;
sco->meta_slots_used);
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&vif->rx, ret);
- irq = vif->irq;
- if (ret && list_empty(&vif->notify_list))
- list_add_tail(&vif->notify_list, ¬ify);
xenvif_notify_tx_completion(vif);
- xenvif_put(vif);
+ if (ret && list_empty(&vif->notify_list))
+ list_add_tail(&vif->notify_list, ¬ify);
+ else
+ xenvif_put(vif);
npo.meta_cons += sco->meta_slots_used;
dev_kfree_skb(skb);
}
list_for_each_entry_safe(vif, tmp, ¬ify, notify_list) {
- notify_remote_via_irq(vif->irq);
+ notify_remote_via_irq(vif->rx_irq);
list_del_init(&vif->notify_list);
+ xenvif_put(vif);
}
/* More work to do? */
vif->tx.rsp_prod_pvt = ++i;
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&vif->tx, notify);
if (notify)
- notify_remote_via_irq(vif->irq);
+ notify_remote_via_irq(vif->tx_irq);
}
static struct xen_netif_rx_response *make_rx_response(struct xenvif *vif,
failed_init:
while (--group >= 0) {
struct xen_netbk *netbk = &xen_netbk[group];
- for (i = 0; i < MAX_PENDING_REQS; i++) {
- if (netbk->mmap_pages[i])
- __free_page(netbk->mmap_pages[i]);
- }
del_timer(&netbk->net_timer);
kthread_stop(netbk->task);
}
module_init(netback_init);
+static void __exit netback_fini(void)
+{
+ int i, j;
+
+ xenvif_xenbus_fini();
+
+ for (i = 0; i < xen_netbk_group_nr; i++) {
+ struct xen_netbk *netbk = &xen_netbk[i];
+ del_timer_sync(&netbk->net_timer);
+ kthread_stop(netbk->task);
+ for (j = 0; j < MAX_PENDING_REQS; j++) {
+ if (netbk->mmap_pages[i])
+ __free_page(netbk->mmap_pages[i]);
+ }
+ }
+
+ vfree(xen_netbk);
+}
+module_exit(netback_fini);
+
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("xen-backend:vif");