static int rxe_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
{
struct udphdr *udph;
struct net_device *ndev = skb->dev;
struct net_device *rdev = ndev;
struct rxe_dev *rxe = rxe_get_dev_from_net(ndev);
struct rxe_pkt_info *pkt = SKB_TO_PKT(skb);
if (!rxe && is_vlan_dev(rdev)) {
rdev = vlan_dev_real_dev(ndev);
rxe = rxe_get_dev_from_net(rdev);
}
if (!rxe)
goto drop;
if (skb_linearize(skb)) {
pr_err("skb_linearize failed\n");
ib_device_put(&rxe->ib_dev);
goto drop;
}
udph = udp_hdr(skb);
pkt->rxe = rxe;
pkt->port_num = 1;
pkt->hdr = (u8 *)(udph + 1);
pkt->mask = RXE_GRH_MASK;
pkt->paylen = be16_to_cpu(udph->len) - sizeof(*udph);
rxe_rcv(skb);
/*
* FIXME: this is in the wrong place, it needs to be done when pkt is
* destroyed
*/
ib_device_put(&rxe->ib_dev);
return 0;
drop:
kfree_skb(skb);
return 0;
}
static void roce_gid_cache_client_cleanup_work_handler(struct work_struct *work)
{
struct ib_cache *ib_cache = container_of(work, struct ib_cache,
roce_gid_cache_cleanup_work);
struct ib_device *ib_dev = container_of(ib_cache, struct ib_device,
cache);
/* Make sure no gid update task is still referencing this device */
flush_workqueue(roce_gid_mgmt_wq);
/* No need to flush the system wq, even though we use it in
* roce_rescan_device because we are guarenteed to run this
* on the system_wq after roce_rescan_device.
*/
roce_gid_cache_cleanup_one(ib_dev);
ib_device_put(ib_dev);
}
static int rxe_notify(struct notifier_block *not_blk,
unsigned long event,
void *arg)
{
struct net_device *ndev = netdev_notifier_info_to_dev(arg);
struct rxe_dev *rxe = rxe_get_dev_from_net(ndev);
if (!rxe)
return NOTIFY_OK;
switch (event) {
case NETDEV_UNREGISTER:
ib_unregister_device_queued(&rxe->ib_dev);
break;
case NETDEV_UP:
rxe_port_up(rxe);
break;
case NETDEV_DOWN:
rxe_port_down(rxe);
break;
case NETDEV_CHANGEMTU:
pr_info("%s changed mtu to %d\n", ndev->name, ndev->mtu);
rxe_set_mtu(rxe, ndev->mtu);
break;
case NETDEV_CHANGE:
rxe_set_port_state(rxe);
break;
case NETDEV_REBOOT:
case NETDEV_GOING_DOWN:
case NETDEV_CHANGEADDR:
case NETDEV_CHANGENAME:
case NETDEV_FEAT_CHANGE:
default:
pr_info("ignoring netdev event = %ld for %s\n",
event, ndev->name);
break;
}
ib_device_put(&rxe->ib_dev);
return NOTIFY_OK;
}
static int rxe_newlink(const char *ibdev_name, struct net_device *ndev)
{
struct rxe_dev *exists;
int err = 0;
exists = rxe_get_dev_from_net(ndev);
if (exists) {
ib_device_put(&exists->ib_dev);
pr_err("already configured on %s\n", ndev->name);
err = -EEXIST;
goto err;
}
err = rxe_net_add(ibdev_name, ndev);
if (err) {
pr_err("failed to add %s\n", ndev->name);
goto err;
}
err:
return err;
}
