| /* |
| * Copyright (c) 2004 Topspin Communications. All rights reserved. |
| * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/string.h> |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/init.h> |
| #include <linux/mutex.h> |
| #include <rdma/rdma_netlink.h> |
| |
| #include "core_priv.h" |
| |
| MODULE_AUTHOR("Roland Dreier"); |
| MODULE_DESCRIPTION("core kernel InfiniBand API"); |
| MODULE_LICENSE("Dual BSD/GPL"); |
| |
| struct ib_client_data { |
| struct list_head list; |
| struct ib_client *client; |
| void * data; |
| }; |
| |
| struct workqueue_struct *ib_wq; |
| EXPORT_SYMBOL_GPL(ib_wq); |
| |
| static LIST_HEAD(device_list); |
| static LIST_HEAD(client_list); |
| |
| /* |
| * device_mutex protects access to both device_list and client_list. |
| * There's no real point to using multiple locks or something fancier |
| * like an rwsem: we always access both lists, and we're always |
| * modifying one list or the other list. In any case this is not a |
| * hot path so there's no point in trying to optimize. |
| */ |
| static DEFINE_MUTEX(device_mutex); |
| |
| static int ib_device_check_mandatory(struct ib_device *device) |
| { |
| #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } |
| static const struct { |
| size_t offset; |
| char *name; |
| } mandatory_table[] = { |
| IB_MANDATORY_FUNC(query_device), |
| IB_MANDATORY_FUNC(query_port), |
| IB_MANDATORY_FUNC(query_pkey), |
| IB_MANDATORY_FUNC(query_gid), |
| IB_MANDATORY_FUNC(alloc_pd), |
| IB_MANDATORY_FUNC(dealloc_pd), |
| IB_MANDATORY_FUNC(create_ah), |
| IB_MANDATORY_FUNC(destroy_ah), |
| IB_MANDATORY_FUNC(create_qp), |
| IB_MANDATORY_FUNC(modify_qp), |
| IB_MANDATORY_FUNC(destroy_qp), |
| IB_MANDATORY_FUNC(post_send), |
| IB_MANDATORY_FUNC(post_recv), |
| IB_MANDATORY_FUNC(create_cq), |
| IB_MANDATORY_FUNC(destroy_cq), |
| IB_MANDATORY_FUNC(poll_cq), |
| IB_MANDATORY_FUNC(req_notify_cq), |
| IB_MANDATORY_FUNC(get_dma_mr), |
| IB_MANDATORY_FUNC(dereg_mr), |
| IB_MANDATORY_FUNC(get_port_immutable) |
| }; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { |
| if (!*(void **) ((void *) device + mandatory_table[i].offset)) { |
| printk(KERN_WARNING "Device %s is missing mandatory function %s\n", |
| device->name, mandatory_table[i].name); |
| return -EINVAL; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static struct ib_device *__ib_device_get_by_name(const char *name) |
| { |
| struct ib_device *device; |
| |
| list_for_each_entry(device, &device_list, core_list) |
| if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) |
| return device; |
| |
| return NULL; |
| } |
| |
| |
| static int alloc_name(char *name) |
| { |
| unsigned long *inuse; |
| char buf[IB_DEVICE_NAME_MAX]; |
| struct ib_device *device; |
| int i; |
| |
| inuse = (unsigned long *) get_zeroed_page(GFP_KERNEL); |
| if (!inuse) |
| return -ENOMEM; |
| |
| list_for_each_entry(device, &device_list, core_list) { |
| if (!sscanf(device->name, name, &i)) |
| continue; |
| if (i < 0 || i >= PAGE_SIZE * 8) |
| continue; |
| snprintf(buf, sizeof buf, name, i); |
| if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) |
| set_bit(i, inuse); |
| } |
| |
| i = find_first_zero_bit(inuse, PAGE_SIZE * 8); |
| free_page((unsigned long) inuse); |
| snprintf(buf, sizeof buf, name, i); |
| |
| if (__ib_device_get_by_name(buf)) |
| return -ENFILE; |
| |
| strlcpy(name, buf, IB_DEVICE_NAME_MAX); |
| return 0; |
| } |
| |
| /** |
| * ib_alloc_device - allocate an IB device struct |
| * @size:size of structure to allocate |
| * |
| * Low-level drivers should use ib_alloc_device() to allocate &struct |
| * ib_device. @size is the size of the structure to be allocated, |
| * including any private data used by the low-level driver. |
| * ib_dealloc_device() must be used to free structures allocated with |
| * ib_alloc_device(). |
| */ |
| struct ib_device *ib_alloc_device(size_t size) |
| { |
| BUG_ON(size < sizeof (struct ib_device)); |
| |
| return kzalloc(size, GFP_KERNEL); |
| } |
| EXPORT_SYMBOL(ib_alloc_device); |
| |
| /** |
| * ib_dealloc_device - free an IB device struct |
| * @device:structure to free |
| * |
| * Free a structure allocated with ib_alloc_device(). |
| */ |
| void ib_dealloc_device(struct ib_device *device) |
| { |
| if (device->reg_state == IB_DEV_UNINITIALIZED) { |
| kfree(device); |
| return; |
| } |
| |
| BUG_ON(device->reg_state != IB_DEV_UNREGISTERED); |
| |
| kobject_put(&device->dev.kobj); |
| } |
| EXPORT_SYMBOL(ib_dealloc_device); |
| |
| static int add_client_context(struct ib_device *device, struct ib_client *client) |
| { |
| struct ib_client_data *context; |
| unsigned long flags; |
| |
| context = kmalloc(sizeof *context, GFP_KERNEL); |
| if (!context) { |
| printk(KERN_WARNING "Couldn't allocate client context for %s/%s\n", |
| device->name, client->name); |
| return -ENOMEM; |
| } |
| |
| context->client = client; |
| context->data = NULL; |
| |
| spin_lock_irqsave(&device->client_data_lock, flags); |
| list_add(&context->list, &device->client_data_list); |
| spin_unlock_irqrestore(&device->client_data_lock, flags); |
| |
| return 0; |
| } |
| |
| static int verify_immutable(const struct ib_device *dev, u8 port) |
| { |
| return WARN_ON(!rdma_cap_ib_mad(dev, port) && |
| rdma_max_mad_size(dev, port) != 0); |
| } |
| |
| static int read_port_immutable(struct ib_device *device) |
| { |
| int ret = -ENOMEM; |
| u8 start_port = rdma_start_port(device); |
| u8 end_port = rdma_end_port(device); |
| u8 port; |
| |
| /** |
| * device->port_immutable is indexed directly by the port number to make |
| * access to this data as efficient as possible. |
| * |
| * Therefore port_immutable is declared as a 1 based array with |
| * potential empty slots at the beginning. |
| */ |
| device->port_immutable = kzalloc(sizeof(*device->port_immutable) |
| * (end_port + 1), |
| GFP_KERNEL); |
| if (!device->port_immutable) |
| goto err; |
| |
| for (port = start_port; port <= end_port; ++port) { |
| ret = device->get_port_immutable(device, port, |
| &device->port_immutable[port]); |
| if (ret) |
| goto err; |
| |
| if (verify_immutable(device, port)) { |
| ret = -EINVAL; |
| goto err; |
| } |
| } |
| |
| ret = 0; |
| goto out; |
| err: |
| kfree(device->port_immutable); |
| out: |
| return ret; |
| } |
| |
| /** |
| * ib_register_device - Register an IB device with IB core |
| * @device:Device to register |
| * |
| * Low-level drivers use ib_register_device() to register their |
| * devices with the IB core. All registered clients will receive a |
| * callback for each device that is added. @device must be allocated |
| * with ib_alloc_device(). |
| */ |
| int ib_register_device(struct ib_device *device, |
| int (*port_callback)(struct ib_device *, |
| u8, struct kobject *)) |
| { |
| int ret; |
| |
| mutex_lock(&device_mutex); |
| |
| if (strchr(device->name, '%')) { |
| ret = alloc_name(device->name); |
| if (ret) |
| goto out; |
| } |
| |
| if (ib_device_check_mandatory(device)) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| INIT_LIST_HEAD(&device->event_handler_list); |
| INIT_LIST_HEAD(&device->client_data_list); |
| spin_lock_init(&device->event_handler_lock); |
| spin_lock_init(&device->client_data_lock); |
| |
| ret = read_port_immutable(device); |
| if (ret) { |
| printk(KERN_WARNING "Couldn't create per port immutable data %s\n", |
| device->name); |
| goto out; |
| } |
| |
| ret = ib_device_register_sysfs(device, port_callback); |
| if (ret) { |
| printk(KERN_WARNING "Couldn't register device %s with driver model\n", |
| device->name); |
| kfree(device->port_immutable); |
| goto out; |
| } |
| |
| list_add_tail(&device->core_list, &device_list); |
| |
| device->reg_state = IB_DEV_REGISTERED; |
| |
| { |
| struct ib_client *client; |
| |
| list_for_each_entry(client, &client_list, list) |
| if (client->add && !add_client_context(device, client)) |
| client->add(device); |
| } |
| |
| out: |
| mutex_unlock(&device_mutex); |
| return ret; |
| } |
| EXPORT_SYMBOL(ib_register_device); |
| |
| /** |
| * ib_unregister_device - Unregister an IB device |
| * @device:Device to unregister |
| * |
| * Unregister an IB device. All clients will receive a remove callback. |
| */ |
| void ib_unregister_device(struct ib_device *device) |
| { |
| struct ib_client *client; |
| struct ib_client_data *context, *tmp; |
| unsigned long flags; |
| |
| mutex_lock(&device_mutex); |
| |
| list_for_each_entry_reverse(client, &client_list, list) |
| if (client->remove) |
| client->remove(device); |
| |
| list_del(&device->core_list); |
| |
| mutex_unlock(&device_mutex); |
| |
| ib_device_unregister_sysfs(device); |
| |
| spin_lock_irqsave(&device->client_data_lock, flags); |
| list_for_each_entry_safe(context, tmp, &device->client_data_list, list) |
| kfree(context); |
| spin_unlock_irqrestore(&device->client_data_lock, flags); |
| |
| device->reg_state = IB_DEV_UNREGISTERED; |
| } |
| EXPORT_SYMBOL(ib_unregister_device); |
| |
| /** |
| * ib_register_client - Register an IB client |
| * @client:Client to register |
| * |
| * Upper level users of the IB drivers can use ib_register_client() to |
| * register callbacks for IB device addition and removal. When an IB |
| * device is added, each registered client's add method will be called |
| * (in the order the clients were registered), and when a device is |
| * removed, each client's remove method will be called (in the reverse |
| * order that clients were registered). In addition, when |
| * ib_register_client() is called, the client will receive an add |
| * callback for all devices already registered. |
| */ |
| int ib_register_client(struct ib_client *client) |
| { |
| struct ib_device *device; |
| |
| mutex_lock(&device_mutex); |
| |
| list_add_tail(&client->list, &client_list); |
| list_for_each_entry(device, &device_list, core_list) |
| if (client->add && !add_client_context(device, client)) |
| client->add(device); |
| |
| mutex_unlock(&device_mutex); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ib_register_client); |
| |
| /** |
| * ib_unregister_client - Unregister an IB client |
| * @client:Client to unregister |
| * |
| * Upper level users use ib_unregister_client() to remove their client |
| * registration. When ib_unregister_client() is called, the client |
| * will receive a remove callback for each IB device still registered. |
| */ |
| void ib_unregister_client(struct ib_client *client) |
| { |
| struct ib_client_data *context, *tmp; |
| struct ib_device *device; |
| unsigned long flags; |
| |
| mutex_lock(&device_mutex); |
| |
| list_for_each_entry(device, &device_list, core_list) { |
| if (client->remove) |
| client->remove(device); |
| |
| spin_lock_irqsave(&device->client_data_lock, flags); |
| list_for_each_entry_safe(context, tmp, &device->client_data_list, list) |
| if (context->client == client) { |
| list_del(&context->list); |
| kfree(context); |
| } |
| spin_unlock_irqrestore(&device->client_data_lock, flags); |
| } |
| list_del(&client->list); |
| |
| mutex_unlock(&device_mutex); |
| } |
| EXPORT_SYMBOL(ib_unregister_client); |
| |
| /** |
| * ib_get_client_data - Get IB client context |
| * @device:Device to get context for |
| * @client:Client to get context for |
| * |
| * ib_get_client_data() returns client context set with |
| * ib_set_client_data(). |
| */ |
| void *ib_get_client_data(struct ib_device *device, struct ib_client *client) |
| { |
| struct ib_client_data *context; |
| void *ret = NULL; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&device->client_data_lock, flags); |
| list_for_each_entry(context, &device->client_data_list, list) |
| if (context->client == client) { |
| ret = context->data; |
| break; |
| } |
| spin_unlock_irqrestore(&device->client_data_lock, flags); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(ib_get_client_data); |
| |
| /** |
| * ib_set_client_data - Set IB client context |
| * @device:Device to set context for |
| * @client:Client to set context for |
| * @data:Context to set |
| * |
| * ib_set_client_data() sets client context that can be retrieved with |
| * ib_get_client_data(). |
| */ |
| void ib_set_client_data(struct ib_device *device, struct ib_client *client, |
| void *data) |
| { |
| struct ib_client_data *context; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&device->client_data_lock, flags); |
| list_for_each_entry(context, &device->client_data_list, list) |
| if (context->client == client) { |
| context->data = data; |
| goto out; |
| } |
| |
| printk(KERN_WARNING "No client context found for %s/%s\n", |
| device->name, client->name); |
| |
| out: |
| spin_unlock_irqrestore(&device->client_data_lock, flags); |
| } |
| EXPORT_SYMBOL(ib_set_client_data); |
| |
| /** |
| * ib_register_event_handler - Register an IB event handler |
| * @event_handler:Handler to register |
| * |
| * ib_register_event_handler() registers an event handler that will be |
| * called back when asynchronous IB events occur (as defined in |
| * chapter 11 of the InfiniBand Architecture Specification). This |
| * callback may occur in interrupt context. |
| */ |
| int ib_register_event_handler (struct ib_event_handler *event_handler) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); |
| list_add_tail(&event_handler->list, |
| &event_handler->device->event_handler_list); |
| spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ib_register_event_handler); |
| |
| /** |
| * ib_unregister_event_handler - Unregister an event handler |
| * @event_handler:Handler to unregister |
| * |
| * Unregister an event handler registered with |
| * ib_register_event_handler(). |
| */ |
| int ib_unregister_event_handler(struct ib_event_handler *event_handler) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); |
| list_del(&event_handler->list); |
| spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ib_unregister_event_handler); |
| |
| /** |
| * ib_dispatch_event - Dispatch an asynchronous event |
| * @event:Event to dispatch |
| * |
| * Low-level drivers must call ib_dispatch_event() to dispatch the |
| * event to all registered event handlers when an asynchronous event |
| * occurs. |
| */ |
| void ib_dispatch_event(struct ib_event *event) |
| { |
| unsigned long flags; |
| struct ib_event_handler *handler; |
| |
| spin_lock_irqsave(&event->device->event_handler_lock, flags); |
| |
| list_for_each_entry(handler, &event->device->event_handler_list, list) |
| handler->handler(handler, event); |
| |
| spin_unlock_irqrestore(&event->device->event_handler_lock, flags); |
| } |
| EXPORT_SYMBOL(ib_dispatch_event); |
| |
| /** |
| * ib_query_device - Query IB device attributes |
| * @device:Device to query |
| * @device_attr:Device attributes |
| * |
| * ib_query_device() returns the attributes of a device through the |
| * @device_attr pointer. |
| */ |
| int ib_query_device(struct ib_device *device, |
| struct ib_device_attr *device_attr) |
| { |
| struct ib_udata uhw = {.outlen = 0, .inlen = 0}; |
| |
| memset(device_attr, 0, sizeof(*device_attr)); |
| |
| return device->query_device(device, device_attr, &uhw); |
| } |
| EXPORT_SYMBOL(ib_query_device); |
| |
| /** |
| * ib_query_port - Query IB port attributes |
| * @device:Device to query |
| * @port_num:Port number to query |
| * @port_attr:Port attributes |
| * |
| * ib_query_port() returns the attributes of a port through the |
| * @port_attr pointer. |
| */ |
| int ib_query_port(struct ib_device *device, |
| u8 port_num, |
| struct ib_port_attr *port_attr) |
| { |
| if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device)) |
| return -EINVAL; |
| |
| return device->query_port(device, port_num, port_attr); |
| } |
| EXPORT_SYMBOL(ib_query_port); |
| |
| /** |
| * ib_query_gid - Get GID table entry |
| * @device:Device to query |
| * @port_num:Port number to query |
| * @index:GID table index to query |
| * @gid:Returned GID |
| * |
| * ib_query_gid() fetches the specified GID table entry. |
| */ |
| int ib_query_gid(struct ib_device *device, |
| u8 port_num, int index, union ib_gid *gid) |
| { |
| return device->query_gid(device, port_num, index, gid); |
| } |
| EXPORT_SYMBOL(ib_query_gid); |
| |
| /** |
| * ib_query_pkey - Get P_Key table entry |
| * @device:Device to query |
| * @port_num:Port number to query |
| * @index:P_Key table index to query |
| * @pkey:Returned P_Key |
| * |
| * ib_query_pkey() fetches the specified P_Key table entry. |
| */ |
| int ib_query_pkey(struct ib_device *device, |
| u8 port_num, u16 index, u16 *pkey) |
| { |
| return device->query_pkey(device, port_num, index, pkey); |
| } |
| EXPORT_SYMBOL(ib_query_pkey); |
| |
| /** |
| * ib_modify_device - Change IB device attributes |
| * @device:Device to modify |
| * @device_modify_mask:Mask of attributes to change |
| * @device_modify:New attribute values |
| * |
| * ib_modify_device() changes a device's attributes as specified by |
| * the @device_modify_mask and @device_modify structure. |
| */ |
| int ib_modify_device(struct ib_device *device, |
| int device_modify_mask, |
| struct ib_device_modify *device_modify) |
| { |
| if (!device->modify_device) |
| return -ENOSYS; |
| |
| return device->modify_device(device, device_modify_mask, |
| device_modify); |
| } |
| EXPORT_SYMBOL(ib_modify_device); |
| |
| /** |
| * ib_modify_port - Modifies the attributes for the specified port. |
| * @device: The device to modify. |
| * @port_num: The number of the port to modify. |
| * @port_modify_mask: Mask used to specify which attributes of the port |
| * to change. |
| * @port_modify: New attribute values for the port. |
| * |
| * ib_modify_port() changes a port's attributes as specified by the |
| * @port_modify_mask and @port_modify structure. |
| */ |
| int ib_modify_port(struct ib_device *device, |
| u8 port_num, int port_modify_mask, |
| struct ib_port_modify *port_modify) |
| { |
| if (!device->modify_port) |
| return -ENOSYS; |
| |
| if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device)) |
| return -EINVAL; |
| |
| return device->modify_port(device, port_num, port_modify_mask, |
| port_modify); |
| } |
| EXPORT_SYMBOL(ib_modify_port); |
| |
| /** |
| * ib_find_gid - Returns the port number and GID table index where |
| * a specified GID value occurs. |
| * @device: The device to query. |
| * @gid: The GID value to search for. |
| * @port_num: The port number of the device where the GID value was found. |
| * @index: The index into the GID table where the GID was found. This |
| * parameter may be NULL. |
| */ |
| int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
| u8 *port_num, u16 *index) |
| { |
| union ib_gid tmp_gid; |
| int ret, port, i; |
| |
| for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) { |
| for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) { |
| ret = ib_query_gid(device, port, i, &tmp_gid); |
| if (ret) |
| return ret; |
| if (!memcmp(&tmp_gid, gid, sizeof *gid)) { |
| *port_num = port; |
| if (index) |
| *index = i; |
| return 0; |
| } |
| } |
| } |
| |
| return -ENOENT; |
| } |
| EXPORT_SYMBOL(ib_find_gid); |
| |
| /** |
| * ib_find_pkey - Returns the PKey table index where a specified |
| * PKey value occurs. |
| * @device: The device to query. |
| * @port_num: The port number of the device to search for the PKey. |
| * @pkey: The PKey value to search for. |
| * @index: The index into the PKey table where the PKey was found. |
| */ |
| int ib_find_pkey(struct ib_device *device, |
| u8 port_num, u16 pkey, u16 *index) |
| { |
| int ret, i; |
| u16 tmp_pkey; |
| int partial_ix = -1; |
| |
| for (i = 0; i < device->port_immutable[port_num].pkey_tbl_len; ++i) { |
| ret = ib_query_pkey(device, port_num, i, &tmp_pkey); |
| if (ret) |
| return ret; |
| if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) { |
| /* if there is full-member pkey take it.*/ |
| if (tmp_pkey & 0x8000) { |
| *index = i; |
| return 0; |
| } |
| if (partial_ix < 0) |
| partial_ix = i; |
| } |
| } |
| |
| /*no full-member, if exists take the limited*/ |
| if (partial_ix >= 0) { |
| *index = partial_ix; |
| return 0; |
| } |
| return -ENOENT; |
| } |
| EXPORT_SYMBOL(ib_find_pkey); |
| |
| static int __init ib_core_init(void) |
| { |
| int ret; |
| |
| ib_wq = alloc_workqueue("infiniband", 0, 0); |
| if (!ib_wq) |
| return -ENOMEM; |
| |
| ret = ib_sysfs_setup(); |
| if (ret) { |
| printk(KERN_WARNING "Couldn't create InfiniBand device class\n"); |
| goto err; |
| } |
| |
| ret = ibnl_init(); |
| if (ret) { |
| printk(KERN_WARNING "Couldn't init IB netlink interface\n"); |
| goto err_sysfs; |
| } |
| |
| ret = ib_cache_setup(); |
| if (ret) { |
| printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n"); |
| goto err_nl; |
| } |
| |
| return 0; |
| |
| err_nl: |
| ibnl_cleanup(); |
| |
| err_sysfs: |
| ib_sysfs_cleanup(); |
| |
| err: |
| destroy_workqueue(ib_wq); |
| return ret; |
| } |
| |
| static void __exit ib_core_cleanup(void) |
| { |
| ib_cache_cleanup(); |
| ibnl_cleanup(); |
| ib_sysfs_cleanup(); |
| /* Make sure that any pending umem accounting work is done. */ |
| destroy_workqueue(ib_wq); |
| } |
| |
| module_init(ib_core_init); |
| module_exit(ib_core_cleanup); |