1 // SPDX-License-Identifier: GPL-2.0
4  * Copyright (C) 2016-2017 Oracle. All rights reserved.
37  * and dev->tx_timeout() should be called to fix the problem.
66 	strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));  in vsw_get_drvinfo()
67 	strscpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));  in vsw_get_drvinfo()
74 	return port->vp->msg_enable;  in vsw_get_msglevel()
81 	port->vp->msg_enable = value;  in vsw_set_msglevel()
111 	return port->q_index;  in vsw_select_queue()
124 	return sunvnet_set_rx_mode_common(dev, port->vp);  in vsw_set_rx_mode()
130 	struct vio_driver_state *vio = &port->vio;  in ldmvsw_open()
145 	return sunvnet_poll_controller_common(dev, port->vp);  in vsw_poll_controller()
163 static const char *local_mac_prop = "local-mac-address";
164 static const char *cfg_handle_prop = "cfg-handle";
166 static struct vnet *vsw_get_vnet(struct mdesc_handle *hp,  in vsw_get_vnet()  argument
176 	/* Get the parent virtual-network-switch macaddr and cfghandle */  in vsw_get_vnet()
177 	mdesc_for_each_arc(a, hp, port_node, MDESC_ARC_TYPE_BACK) {  in vsw_get_vnet()
178 		u64 target = mdesc_arc_target(hp, a);  in vsw_get_vnet()
181 		name = mdesc_get_property(hp, target, "name", NULL);  in vsw_get_vnet()
182 		if (!name || strcmp(name, "virtual-network-switch"))  in vsw_get_vnet()
185 		local_mac = mdesc_get_property(hp, target,  in vsw_get_vnet()
187 		cfghandle = mdesc_get_property(hp, target,  in vsw_get_vnet()
192 		return ERR_PTR(-ENODEV);  in vsw_get_vnet()
198 		if (iter->local_mac == *local_mac) {  in vsw_get_vnet()
208 			return ERR_PTR(-ENOMEM);  in vsw_get_vnet()
211 		spin_lock_init(&vp->lock);  in vsw_get_vnet()
212 		INIT_LIST_HEAD(&vp->port_list);  in vsw_get_vnet()
213 		INIT_LIST_HEAD(&vp->list);  in vsw_get_vnet()
214 		vp->local_mac = *local_mac;  in vsw_get_vnet()
215 		list_add(&vp->list, &vnet_list);  in vsw_get_vnet()
235 		return ERR_PTR(-ENOMEM);  in vsw_alloc_netdev()
236 	dev->needed_headroom = VNET_PACKET_SKIP + 8;  in vsw_alloc_netdev()
237 	dev->needed_tailroom = 8;  in vsw_alloc_netdev()
240 	ether_addr_copy(dev->perm_addr, dev->dev_addr);  in vsw_alloc_netdev()
242 	sprintf(dev->name, "vif%d.%d", (int)handle, (int)port_id);  in vsw_alloc_netdev()
244 	dev->netdev_ops = &vsw_ops;  in vsw_alloc_netdev()
245 	dev->ethtool_ops = &vsw_ethtool_ops;  in vsw_alloc_netdev()
246 	dev->watchdog_timeo = VSW_TX_TIMEOUT;  in vsw_alloc_netdev()
248 	dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG;  in vsw_alloc_netdev()
249 	dev->features = dev->hw_features;  in vsw_alloc_netdev()
251 	/* MTU range: 68 - 65535 */  in vsw_alloc_netdev()
252 	dev->min_mtu = ETH_MIN_MTU;  in vsw_alloc_netdev()
253 	dev->max_mtu = VNET_MAX_MTU;  in vsw_alloc_netdev()
255 	SET_NETDEV_DEV(dev, &vdev->dev);  in vsw_alloc_netdev()
272 static const char *remote_macaddr_prop = "remote-mac-address";
277 	struct mdesc_handle *hp;  in vsw_port_probe()  local
287 	hp = mdesc_grab();  in vsw_port_probe()
289 	if (!hp)  in vsw_port_probe()
290 		return -ENODEV;  in vsw_port_probe()
292 	rmac = mdesc_get_property(hp, vdev->mp, remote_macaddr_prop, &len);  in vsw_port_probe()
293 	err = -ENODEV;  in vsw_port_probe()
296 		mdesc_release(hp);  in vsw_port_probe()
300 	port_id = mdesc_get_property(hp, vdev->mp, id_prop, NULL);  in vsw_port_probe()
301 	err = -ENODEV;  in vsw_port_probe()
304 		mdesc_release(hp);  in vsw_port_probe()
309 	vp = vsw_get_vnet(hp, vdev->mp, &handle);  in vsw_port_probe()
312 		pr_err("Failed to get vnet for vsw-port\n");  in vsw_port_probe()
313 		mdesc_release(hp);  in vsw_port_probe()
317 	mdesc_release(hp);  in vsw_port_probe()
322 		pr_err("Failed to alloc netdev for vsw-port\n");  in vsw_port_probe()
328 	INIT_LIST_HEAD(&port->list);  in vsw_port_probe()
331 		port->raddr[i] = (*rmac >> (5 - i) * 8) & 0xff;  in vsw_port_probe()
333 	port->vp = vp;  in vsw_port_probe()
334 	port->dev = dev;  in vsw_port_probe()
335 	port->switch_port = 1;  in vsw_port_probe()
336 	port->tso = false; /* no tso in vsw, misbehaves in bridge */  in vsw_port_probe()
337 	port->tsolen = 0;  in vsw_port_probe()
345 	port->vsw = 1;  in vsw_port_probe()
347 	err = vio_driver_init(&port->vio, vdev, VDEV_NETWORK,  in vsw_port_probe()
349 			      &vsw_vio_ops, dev->name);  in vsw_port_probe()
353 	err = vio_ldc_alloc(&port->vio, &vsw_ldc_cfg, port);  in vsw_port_probe()
357 	dev_set_drvdata(&vdev->dev, port);  in vsw_port_probe()
359 	netif_napi_add(dev, &port->napi, sunvnet_poll_common);  in vsw_port_probe()
361 	spin_lock_irqsave(&vp->lock, flags);  in vsw_port_probe()
362 	list_add_rcu(&port->list, &vp->port_list);  in vsw_port_probe()
363 	spin_unlock_irqrestore(&vp->lock, flags);  in vsw_port_probe()
365 	timer_setup(&port->clean_timer, sunvnet_clean_timer_expire_common, 0);  in vsw_port_probe()
373 	spin_lock_irqsave(&vp->lock, flags);  in vsw_port_probe()
375 	spin_unlock_irqrestore(&vp->lock, flags);  in vsw_port_probe()
377 	napi_enable(&port->napi);  in vsw_port_probe()
378 	vio_port_up(&port->vio);  in vsw_port_probe()
385 	netdev_info(dev, "LDOM vsw-port %pM\n", dev->dev_addr);  in vsw_port_probe()
387 	pr_info("%s: PORT ( remote-mac %pM%s )\n", dev->name,  in vsw_port_probe()
388 		port->raddr, " switch-port");  in vsw_port_probe()
393 	del_timer_sync(&port->clean_timer);  in vsw_port_probe()
394 	list_del_rcu(&port->list);  in vsw_port_probe()
396 	netif_napi_del(&port->napi);  in vsw_port_probe()
397 	dev_set_drvdata(&vdev->dev, NULL);  in vsw_port_probe()
398 	vio_ldc_free(&port->vio);  in vsw_port_probe()
407 	struct vnet_port *port = dev_get_drvdata(&vdev->dev);  in vsw_port_remove()
411 		del_timer_sync(&port->vio.timer);  in vsw_port_remove()
412 		del_timer_sync(&port->clean_timer);  in vsw_port_remove()
414 		napi_disable(&port->napi);  in vsw_port_remove()
415 		unregister_netdev(port->dev);  in vsw_port_remove()
417 		list_del_rcu(&port->list);  in vsw_port_remove()
420 		spin_lock_irqsave(&port->vp->lock, flags);  in vsw_port_remove()
422 		spin_unlock_irqrestore(&port->vp->lock, flags);  in vsw_port_remove()
423 		netif_napi_del(&port->napi);  in vsw_port_remove()
425 		vio_ldc_free(&port->vio);  in vsw_port_remove()
427 		dev_set_drvdata(&vdev->dev, NULL);  in vsw_port_remove()
429 		free_netdev(port->dev);  in vsw_port_remove()
441 		list_del(&vp->list);  in vsw_cleanup()
443 		if (!list_empty(&vp->port_list))  in vsw_cleanup()
452 		.type = "vsw-port",