diff options
Diffstat (limited to 'drivers/infiniband/core/device.c')
| -rw-r--r-- | drivers/infiniband/core/device.c | 87 |
1 files changed, 78 insertions, 9 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 0290aca18d26..ca9b956c034d 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -437,6 +437,7 @@ int ib_device_rename(struct ib_device *ibdev, const char *name) client->rename(ibdev, client_data); } up_read(&ibdev->client_data_rwsem); + rdma_nl_notify_event(ibdev, 0, RDMA_RENAME_EVENT); up_read(&devices_rwsem); return 0; } @@ -1351,6 +1352,29 @@ static void prevent_dealloc_device(struct ib_device *ib_dev) { } +static void ib_device_notify_register(struct ib_device *device) +{ + struct net_device *netdev; + u32 port; + int ret; + + ret = rdma_nl_notify_event(device, 0, RDMA_REGISTER_EVENT); + if (ret) + return; + + rdma_for_each_port(device, port) { + netdev = ib_device_get_netdev(device, port); + if (!netdev) + continue; + + ret = rdma_nl_notify_event(device, port, + RDMA_NETDEV_ATTACH_EVENT); + dev_put(netdev); + if (ret) + return; + } +} + /** * ib_register_device - Register an IB device with IB core * @device: Device to register @@ -1449,6 +1473,8 @@ int ib_register_device(struct ib_device *device, const char *name, dev_set_uevent_suppress(&device->dev, false); /* Mark for userspace that device is ready */ kobject_uevent(&device->dev.kobj, KOBJ_ADD); + + ib_device_notify_register(device); ib_device_put(device); return 0; @@ -1491,6 +1517,7 @@ static void __ib_unregister_device(struct ib_device *ib_dev) goto out; disable_device(ib_dev); + rdma_nl_notify_event(ib_dev, 0, RDMA_UNREGISTER_EVENT); /* Expedite removing unregistered pointers from the hash table */ free_netdevs(ib_dev); @@ -2159,6 +2186,7 @@ static void add_ndev_hash(struct ib_port_data *pdata) int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, u32 port) { + enum rdma_nl_notify_event_type etype; struct net_device *old_ndev; struct ib_port_data *pdata; unsigned long flags; @@ -2190,6 +2218,14 @@ int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, spin_unlock_irqrestore(&pdata->netdev_lock, flags); add_ndev_hash(pdata); + + /* Make sure that the device is registered before we send events */ + if (xa_load(&devices, ib_dev->index) != ib_dev) + return 0; + + etype = ndev ? RDMA_NETDEV_ATTACH_EVENT : RDMA_NETDEV_DETACH_EVENT; + rdma_nl_notify_event(ib_dev, port, etype); + return 0; } EXPORT_SYMBOL(ib_device_set_netdev); @@ -2236,6 +2272,9 @@ struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, if (!rdma_is_port_valid(ib_dev, port)) return NULL; + if (!ib_dev->port_data) + return NULL; + pdata = &ib_dev->port_data[port]; /* @@ -2252,17 +2291,9 @@ struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, spin_unlock(&pdata->netdev_lock); } - /* - * If we are starting to unregister expedite things by preventing - * propagation of an unregistering netdev. - */ - if (res && res->reg_state != NETREG_REGISTERED) { - dev_put(res); - return NULL; - } - return res; } +EXPORT_SYMBOL(ib_device_get_netdev); /** * ib_device_get_by_netdev - Find an IB device associated with a netdev @@ -2729,6 +2760,7 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops) SET_DEVICE_OP(dev_ops, resize_cq); SET_DEVICE_OP(dev_ops, set_vf_guid); SET_DEVICE_OP(dev_ops, set_vf_link_state); + SET_DEVICE_OP(dev_ops, ufile_hw_cleanup); SET_OBJ_SIZE(dev_ops, ib_ah); SET_OBJ_SIZE(dev_ops, ib_counters); @@ -2822,6 +2854,40 @@ static const struct rdma_nl_cbs ibnl_ls_cb_table[RDMA_NL_LS_NUM_OPS] = { }, }; +static int ib_netdevice_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + struct net_device *ndev = netdev_notifier_info_to_dev(ptr); + struct net_device *ib_ndev; + struct ib_device *ibdev; + u32 port; + + switch (event) { + case NETDEV_CHANGENAME: + ibdev = ib_device_get_by_netdev(ndev, RDMA_DRIVER_UNKNOWN); + if (!ibdev) + return NOTIFY_DONE; + + rdma_for_each_port(ibdev, port) { + ib_ndev = ib_device_get_netdev(ibdev, port); + if (ndev == ib_ndev) + rdma_nl_notify_event(ibdev, port, + RDMA_NETDEV_RENAME_EVENT); + dev_put(ib_ndev); + } + ib_device_put(ibdev); + break; + default: + break; + } + + return NOTIFY_DONE; +} + +static struct notifier_block nb_netdevice = { + .notifier_call = ib_netdevice_event, +}; + static int __init ib_core_init(void) { int ret = -ENOMEM; @@ -2893,6 +2959,8 @@ static int __init ib_core_init(void) goto err_parent; } + register_netdevice_notifier(&nb_netdevice); + return 0; err_parent: @@ -2922,6 +2990,7 @@ err: static void __exit ib_core_cleanup(void) { + unregister_netdevice_notifier(&nb_netdevice); roce_gid_mgmt_cleanup(); rdma_nl_unregister(RDMA_NL_LS); nldev_exit(); |