/* called by ifc layer to create new rxe device
caller should allocate memory for rxe by calling
ib_alloc_device */
int rxe_add(struct rxe_dev *rxe, unsigned int mtu)
{
int err;
unsigned port_num = 1;
__module_get(THIS_MODULE);
kref_init(&rxe->ref_cnt);
err = rxe_init(rxe);
if (err)
goto err1;
err = rxe_set_mtu(rxe, mtu, port_num);
if (err)
goto err2;
err = rxe_register_device(rxe);
if (err)
goto err2;
return 0;
err2:
rxe_cleanup(rxe);
err1:
kref_put(&rxe->ref_cnt, rxe_release);
module_put(THIS_MODULE);
return err;
}
/* called by ifc layer to create new rxe device.
* The caller should allocate memory for rxe by calling ib_alloc_device.
*/
int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name)
{
int err;
err = rxe_init(rxe);
if (err)
return err;
rxe_set_mtu(rxe, mtu);
return rxe_register_device(rxe, ibdev_name);
}
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;
}
