hw/usnic/usnic_ib_main.c

104 static void usnic_ib_qp_grp_modify_active_to_err(struct usnic_ib_dev *us_ibdev)
111 	BUG_ON(!mutex_is_locked(&us_ibdev->usdev_lock));
113 	list_for_each_entry(ctx, &us_ibdev->ctx_list, link) {
135 static void usnic_ib_handle_usdev_event(struct usnic_ib_dev *us_ibdev,
143 	mutex_lock(&us_ibdev->usdev_lock);
144 	netdev = us_ibdev->netdev;
147 		usnic_info("PF Reset on %s\n", dev_name(&us_ibdev->ib_dev.dev));
148 		usnic_ib_qp_grp_modify_active_to_err(us_ibdev);
150 		ib_event.device = &us_ibdev->ib_dev;
157 		if (!us_ibdev->ufdev->link_up &&
159 			usnic_fwd_carrier_up(us_ibdev->ufdev);
161 				   dev_name(&us_ibdev->ib_dev.dev));
163 			ib_event.device = &us_ibdev->ib_dev;
166 		} else if (us_ibdev->ufdev->link_up &&
168 			usnic_fwd_carrier_down(us_ibdev->ufdev);
170 				   dev_name(&us_ibdev->ib_dev.dev));
171 			usnic_ib_qp_grp_modify_active_to_err(us_ibdev);
173 			ib_event.device = &us_ibdev->ib_dev;
179 					dev_name(&us_ibdev->ib_dev.dev));
183 		if (!memcmp(us_ibdev->ufdev->mac, netdev->dev_addr,
184 				sizeof(us_ibdev->ufdev->mac))) {
186 				  dev_name(&us_ibdev->ib_dev.dev));
189 					dev_name(&us_ibdev->ib_dev.dev),
190 					us_ibdev->ufdev->mac,
192 			usnic_fwd_set_mac(us_ibdev->ufdev, netdev->dev_addr);
193 			usnic_ib_qp_grp_modify_active_to_err(us_ibdev);
195 			ib_event.device = &us_ibdev->ib_dev;
202 		if (us_ibdev->ufdev->mtu != netdev->mtu) {
204 					dev_name(&us_ibdev->ib_dev.dev),
205 					us_ibdev->ufdev->mtu, netdev->mtu);
206 			usnic_fwd_set_mtu(us_ibdev->ufdev, netdev->mtu);
207 			usnic_ib_qp_grp_modify_active_to_err(us_ibdev);
210 				  dev_name(&us_ibdev->ib_dev.dev));
216 				dev_name(&us_ibdev->ib_dev.dev));
218 	mutex_unlock(&us_ibdev->usdev_lock);
224 	struct usnic_ib_dev *us_ibdev;
233 	us_ibdev = container_of(ibdev, struct usnic_ib_dev, ib_dev);
234 	usnic_ib_handle_usdev_event(us_ibdev, event);
245 static int usnic_ib_handle_inet_event(struct usnic_ib_dev *us_ibdev,
251 	mutex_lock(&us_ibdev->usdev_lock);
257 		usnic_fwd_del_ipaddr(us_ibdev->ufdev);
258 		usnic_ib_qp_grp_modify_active_to_err(us_ibdev);
260 		ib_event.device = &us_ibdev->ib_dev;
265 		usnic_fwd_add_ipaddr(us_ibdev->ufdev, ifa->ifa_address);
268 				&us_ibdev->ufdev->inaddr);
270 		ib_event.device = &us_ibdev->ib_dev;
277 				dev_name(&us_ibdev->ib_dev.dev));
279 	mutex_unlock(&us_ibdev->usdev_lock);
287 	struct usnic_ib_dev *us_ibdev;
296 	us_ibdev = container_of(ibdev, struct usnic_ib_dev, ib_dev);
297 	usnic_ib_handle_inet_event(us_ibdev, event, ptr);
325 	struct usnic_ib_dev *us_ibdev =
329 	mutex_lock(&us_ibdev->usdev_lock);
330 	us_ibdev->netdev->ethtool_ops->get_drvinfo(us_ibdev->netdev, &info);
331 	mutex_unlock(&us_ibdev->usdev_lock);
370 	struct usnic_ib_dev *us_ibdev;
379 	us_ibdev = ib_alloc_device(usnic_ib_dev, ib_dev);
380 	if (!us_ibdev) {
386 	us_ibdev->ufdev = usnic_fwd_dev_alloc(dev);
387 	if (!us_ibdev->ufdev) {
392 	mutex_init(&us_ibdev->usdev_lock);
393 	INIT_LIST_HEAD(&us_ibdev->vf_dev_list);
394 	INIT_LIST_HEAD(&us_ibdev->ctx_list);
396 	us_ibdev->pdev = dev;
397 	us_ibdev->netdev = pci_get_drvdata(dev);
398 	us_ibdev->ib_dev.node_type = RDMA_NODE_USNIC_UDP;
399 	us_ibdev->ib_dev.phys_port_cnt = USNIC_IB_PORT_CNT;
400 	us_ibdev->ib_dev.num_comp_vectors = USNIC_IB_NUM_COMP_VECTORS;
401 	us_ibdev->ib_dev.dev.parent = &dev->dev;
403 	ib_set_device_ops(&us_ibdev->ib_dev, &usnic_dev_ops);
405 	ret = ib_device_set_netdev(&us_ibdev->ib_dev, us_ibdev->netdev, 1);
410 	if (ib_register_device(&us_ibdev->ib_dev, "usnic_%d", &dev->dev))
413 	usnic_fwd_set_mtu(us_ibdev->ufdev, us_ibdev->netdev->mtu);
414 	usnic_fwd_set_mac(us_ibdev->ufdev, us_ibdev->netdev->dev_addr);
415 	if (netif_carrier_ok(us_ibdev->netdev))
416 		usnic_fwd_carrier_up(us_ibdev->ufdev);
425 			usnic_fwd_add_ipaddr(us_ibdev->ufdev, ifa->ifa_address);
429 	usnic_mac_ip_to_gid(us_ibdev->netdev->perm_addr,
430 				us_ibdev->ufdev->inaddr, &gid.raw[0]);
431 	memcpy(&us_ibdev->ib_dev.node_guid, &gid.global.interface_id,
433 	kref_init(&us_ibdev->vf_cnt);
436 		   dev_name(&us_ibdev->ib_dev.dev),
437 		   netdev_name(us_ibdev->netdev), us_ibdev->ufdev->mac,
438 		   us_ibdev->ufdev->link_up, us_ibdev->ufdev->mtu);
439 	return us_ibdev;
442 	usnic_fwd_dev_free(us_ibdev->ufdev);
445 	ib_dealloc_device(&us_ibdev->ib_dev);
449 static void usnic_ib_device_remove(struct usnic_ib_dev *us_ibdev)
451 	usnic_info("Unregistering %s\n", dev_name(&us_ibdev->ib_dev.dev));
452 	usnic_ib_sysfs_unregister_usdev(us_ibdev);
453 	usnic_fwd_dev_free(us_ibdev->ufdev);
454 	ib_unregister_device(&us_ibdev->ib_dev);
455 	ib_dealloc_device(&us_ibdev->ib_dev);
460 	struct usnic_ib_dev *us_ibdev, *tmp;
466 	list_for_each_entry_safe(us_ibdev, tmp,
468 		if (us_ibdev->pdev == dev) {
469 			list_del(&us_ibdev->ib_dev_link);
478 		usnic_ib_device_remove(us_ibdev);
485 	struct usnic_ib_dev *us_ibdev;
495 	list_for_each_entry(us_ibdev, &usnic_ib_ibdev_list, ib_dev_link) {
496 		if (us_ibdev->pdev == parent_pci) {
497 			kref_get(&us_ibdev->vf_cnt);
502 	us_ibdev = usnic_ib_device_add(parent_pci);
503 	if (IS_ERR_OR_NULL(us_ibdev)) {
504 		us_ibdev = us_ibdev ? us_ibdev : ERR_PTR(-EFAULT);
508 	err = usnic_ib_sysfs_register_usdev(us_ibdev);
510 		usnic_ib_device_remove(us_ibdev);
511 		us_ibdev = ERR_PTR(err);
515 	list_add(&us_ibdev->ib_dev_link, &usnic_ib_ibdev_list);
518 	return us_ibdev;