static int rxe_enable_driver(struct ib_device *ib_dev)
{
struct rxe_dev *rxe = container_of(ib_dev, struct rxe_dev, ib_dev);
rxe_set_port_state(rxe);
dev_info(&rxe->ib_dev.dev, "added %s\n", netdev_name(rxe->ndev));
return 0;
}
static int rxe_param_set_add(const char *val, const struct kernel_param *kp)
{
int len;
int err = 0;
char intf[32];
struct net_device *ndev = NULL;
struct rxe_dev *rxe;
len = sanitize_arg(val, intf, sizeof(intf));
if (!len) {
pr_err("add: invalid interface name\n");
err = -EINVAL;
goto err;
}
ndev = dev_get_by_name(&init_net, intf);
if (!ndev) {
pr_err("interface %s not found\n", intf);
err = -EINVAL;
goto err;
}
if (net_to_rxe(ndev)) {
pr_err("already configured on %s\n", intf);
err = -EINVAL;
goto err;
}
rxe = rxe_net_add(ndev);
if (!rxe) {
pr_err("failed to add %s\n", intf);
err = -EINVAL;
goto err;
}
rxe_set_port_state(ndev);
pr_info("added %s to %s\n", rxe->ib_dev.name, intf);
err:
if (ndev)
dev_put(ndev);
return err;
}
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;
}