/* Caller must leave room for ethernet header in front!! */
ssize_t
sendether(struct iodesc *d, void *pkt, size_t len, u_char *dea, int etype)
{
ssize_t n;
struct ether_header *eh;
#ifdef ETHER_DEBUG
if (debug)
printf("sendether: called\n");
#endif
eh = (struct ether_header *)pkt - 1;
len += sizeof(*eh);
MACPY(d->myea, eh->ether_shost); /* by byte */
MACPY(dea, eh->ether_dhost); /* by byte */
eh->ether_type = htons(etype);
n = netif_put(d, eh, len);
if (n == -1 || (size_t)n < sizeof(*eh))
return -1;
n -= sizeof(*eh);
return n;
}
void netif_disconnect(netif_t *netif)
{
switch (netif->status) {
case CONNECTED:
rtnl_lock();
netif->status = DISCONNECTING;
wmb();
if (netif_running(netif->dev))
__netif_down(netif);
rtnl_unlock();
netif_put(netif);
/* fall through */
case DISCONNECTED:
netif_free(netif);
break;
default:
BUG();
}
}
static void net_tx_error(struct XenNetDev *netdev, netif_tx_request_t *txp, RING_IDX end)
{
#if 0
/*
* Hmm, why netback fails everything in the ring?
* Should we do that even when not supporting SG and TSO?
*/
RING_IDX cons = netdev->tx_ring.req_cons;
do {
make_tx_response(netif, txp, NETIF_RSP_ERROR);
if (cons >= end)
break;
txp = RING_GET_REQUEST(&netdev->tx_ring, cons++);
} while (1);
netdev->tx_ring.req_cons = cons;
netif_schedule_work(netif);
netif_put(netif);
#else
net_tx_response(netdev, txp, NETIF_RSP_ERROR);
#endif
}
