diff options
Diffstat (limited to 'drivers/infiniband/core/sysfs.c')
| -rw-r--r-- | drivers/infiniband/core/sysfs.c | 762 |
1 files changed, 762 insertions, 0 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c new file mode 100644 index 00000000000..3a413f72ff6 --- /dev/null +++ b/drivers/infiniband/core/sysfs.c @@ -0,0 +1,762 @@ +/* + * Copyright (c) 2004, 2005 Topspin Communications. 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. + * + * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $ + */ + +#include "core_priv.h" + +#include <ib_mad.h> + +struct ib_port { + struct kobject kobj; + struct ib_device *ibdev; + struct attribute_group gid_group; + struct attribute **gid_attr; + struct attribute_group pkey_group; + struct attribute **pkey_attr; + u8 port_num; +}; + +struct port_attribute { + struct attribute attr; + ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); + ssize_t (*store)(struct ib_port *, struct port_attribute *, + const char *buf, size_t count); +}; + +#define PORT_ATTR(_name, _mode, _show, _store) \ +struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) + +#define PORT_ATTR_RO(_name) \ +struct port_attribute port_attr_##_name = __ATTR_RO(_name) + +struct port_table_attribute { + struct port_attribute attr; + int index; +}; + +static ssize_t port_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct port_attribute *port_attr = + container_of(attr, struct port_attribute, attr); + struct ib_port *p = container_of(kobj, struct ib_port, kobj); + + if (!port_attr->show) + return 0; + + return port_attr->show(p, port_attr, buf); +} + +static struct sysfs_ops port_sysfs_ops = { + .show = port_attr_show +}; + +static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + static const char *state_name[] = { + [IB_PORT_NOP] = "NOP", + [IB_PORT_DOWN] = "DOWN", + [IB_PORT_INIT] = "INIT", + [IB_PORT_ARMED] = "ARMED", + [IB_PORT_ACTIVE] = "ACTIVE", + [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" + }; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "%d: %s\n", attr.state, + attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ? + state_name[attr.state] : "UNKNOWN"); +} + +static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "0x%x\n", attr.lid); +} + +static ssize_t lid_mask_count_show(struct ib_port *p, + struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "%d\n", attr.lmc); +} + +static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "0x%x\n", attr.sm_lid); +} + +static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "%d\n", attr.sm_sl); +} + +static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + return sprintf(buf, "0x%08x\n", attr.port_cap_flags); +} + +static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + char *speed = ""; + int rate; + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + switch (attr.active_speed) { + case 2: speed = " DDR"; break; + case 4: speed = " QDR"; break; + } + + rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; + if (rate < 0) + return -EINVAL; + + return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", + rate / 10, rate % 10 ? ".5" : "", + ib_width_enum_to_int(attr.active_width), speed); +} + +static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, + char *buf) +{ + struct ib_port_attr attr; + + ssize_t ret; + + ret = ib_query_port(p->ibdev, p->port_num, &attr); + if (ret) + return ret; + + switch (attr.phys_state) { + case 1: return sprintf(buf, "1: Sleep\n"); + case 2: return sprintf(buf, "2: Polling\n"); + case 3: return sprintf(buf, "3: Disabled\n"); + case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); + case 5: return sprintf(buf, "5: LinkUp\n"); + case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); + case 7: return sprintf(buf, "7: Phy Test\n"); + default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); + } +} + +static PORT_ATTR_RO(state); +static PORT_ATTR_RO(lid); +static PORT_ATTR_RO(lid_mask_count); +static PORT_ATTR_RO(sm_lid); +static PORT_ATTR_RO(sm_sl); +static PORT_ATTR_RO(cap_mask); +static PORT_ATTR_RO(rate); +static PORT_ATTR_RO(phys_state); + +static struct attribute *port_default_attrs[] = { + &port_attr_state.attr, + &port_attr_lid.attr, + &port_attr_lid_mask_count.attr, + &port_attr_sm_lid.attr, + &port_attr_sm_sl.attr, + &port_attr_cap_mask.attr, + &port_attr_rate.attr, + &port_attr_phys_state.attr, + NULL +}; + +static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, + char *buf) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + union ib_gid gid; + ssize_t ret; + + ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); + if (ret) + return ret; + + return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", + be16_to_cpu(((u16 *) gid.raw)[0]), + be16_to_cpu(((u16 *) gid.raw)[1]), + be16_to_cpu(((u16 *) gid.raw)[2]), + be16_to_cpu(((u16 *) gid.raw)[3]), + be16_to_cpu(((u16 *) gid.raw)[4]), + be16_to_cpu(((u16 *) gid.raw)[5]), + be16_to_cpu(((u16 *) gid.raw)[6]), + be16_to_cpu(((u16 *) gid.raw)[7])); +} + +static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, + char *buf) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + u16 pkey; + ssize_t ret; + + ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); + if (ret) + return ret; + + return sprintf(buf, "0x%04x\n", pkey); +} + +#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ +struct port_table_attribute port_pma_attr_##_name = { \ + .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ + .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ +} + +static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, + char *buf) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + int offset = tab_attr->index & 0xffff; + int width = (tab_attr->index >> 16) & 0xff; + struct ib_mad *in_mad = NULL; + struct ib_mad *out_mad = NULL; + ssize_t ret; + + if (!p->ibdev->process_mad) + return sprintf(buf, "N/A (no PMA)\n"); + + in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); + out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); + if (!in_mad || !out_mad) { + ret = -ENOMEM; + goto out; + } + + memset(in_mad, 0, sizeof *in_mad); + in_mad->mad_hdr.base_version = 1; + in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; + in_mad->mad_hdr.class_version = 1; + in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; + in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ + + in_mad->data[41] = p->port_num; /* PortSelect field */ + + if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, + p->port_num, NULL, NULL, in_mad, out_mad) & + (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != + (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { + ret = -EINVAL; + goto out; + } + + switch (width) { + case 4: + ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> + (offset % 4)) & 0xf); + break; + case 8: + ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); + break; + case 16: + ret = sprintf(buf, "%u\n", + be16_to_cpup((u16 *)(out_mad->data + 40 + offset / 8))); + break; + case 32: + ret = sprintf(buf, "%u\n", + be32_to_cpup((u32 *)(out_mad->data + 40 + offset / 8))); + break; + default: + ret = 0; + } + +out: + kfree(in_mad); + kfree(out_mad); + + return ret; +} + +static PORT_PMA_ATTR(symbol_error , 0, 16, 32); +static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); +static PORT_PMA_ATTR(link_downed , 2, 8, 56); +static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); +static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); +static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); +static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); +static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); +static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); +static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); +static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); +static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); +static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); +static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); +static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); +static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); + +static struct attribute *pma_attrs[] = { + &port_pma_attr_symbol_error.attr.attr, + &port_pma_attr_link_error_recovery.attr.attr, + &port_pma_attr_link_downed.attr.attr, + &port_pma_attr_port_rcv_errors.attr.attr, + &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, + &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, + &port_pma_attr_port_xmit_discards.attr.attr, + &port_pma_attr_port_xmit_constraint_errors.attr.attr, + &port_pma_attr_port_rcv_constraint_errors.attr.attr, + &port_pma_attr_local_link_integrity_errors.attr.attr, + &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, + &port_pma_attr_VL15_dropped.attr.attr, + &port_pma_attr_port_xmit_data.attr.attr, + &port_pma_attr_port_rcv_data.attr.attr, + &port_pma_attr_port_xmit_packets.attr.attr, + &port_pma_attr_port_rcv_packets.attr.attr, + NULL +}; + +static struct attribute_group pma_group = { + .name = "counters", + .attrs = pma_attrs +}; + +static void ib_port_release(struct kobject *kobj) +{ + struct ib_port *p = container_of(kobj, struct ib_port, kobj); + struct attribute *a; + int i; + + for (i = 0; (a = p->gid_attr[i]); ++i) { + kfree(a->name); + kfree(a); + } + + for (i = 0; (a = p->pkey_attr[i]); ++i) { + kfree(a->name); + kfree(a); + } + + kfree(p->gid_attr); + kfree(p); +} + +static struct kobj_type port_type = { + .release = ib_port_release, + .sysfs_ops = &port_sysfs_ops, + .default_attrs = port_default_attrs +}; + +static void ib_device_release(struct class_device *cdev) +{ + struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); + + kfree(dev); +} + +static int ib_device_hotplug(struct class_device *cdev, char **envp, + int num_envp, char *buf, int size) +{ + struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); + int i = 0, len = 0; + + if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len, + "NAME=%s", dev->name)) + return -ENOMEM; + + /* + * It might be nice to pass the node GUID to hotplug, but + * right now the only way to get it is to query the device + * provider, and this can crash during device removal because + * we are will be running after driver removal has started. + * We could add a node_guid field to struct ib_device, or we + * could just let the hotplug script read the node GUID from + * sysfs when devices are added. + */ + + envp[i] = NULL; + return 0; +} + +static int alloc_group(struct attribute ***attr, + ssize_t (*show)(struct ib_port *, + struct port_attribute *, char *buf), + int len) +{ + struct port_table_attribute ***tab_attr = + (struct port_table_attribute ***) attr; + int i; + int ret; + + *tab_attr = kmalloc((1 + len) * sizeof *tab_attr, GFP_KERNEL); + if (!*tab_attr) + return -ENOMEM; + + memset(*tab_attr, 0, (1 + len) * sizeof *tab_attr); + + for (i = 0; i < len; ++i) { + (*tab_attr)[i] = kmalloc(sizeof *(*tab_attr)[i], GFP_KERNEL); + if (!(*tab_attr)[i]) { + ret = -ENOMEM; + goto err; + } + memset((*tab_attr)[i], 0, sizeof *(*tab_attr)[i]); + (*tab_attr)[i]->attr.attr.name = kmalloc(8, GFP_KERNEL); + if (!(*tab_attr)[i]->attr.attr.name) { + ret = -ENOMEM; + goto err; + } + + if (snprintf((*tab_attr)[i]->attr.attr.name, 8, "%d", i) >= 8) { + ret = -ENOMEM; + goto err; + } + + (*tab_attr)[i]->attr.attr.mode = S_IRUGO; + (*tab_attr)[i]->attr.attr.owner = THIS_MODULE; + (*tab_attr)[i]->attr.show = show; + (*tab_attr)[i]->index = i; + } + + return 0; + +err: + for (i = 0; i < len; ++i) { + if ((*tab_attr)[i]) + kfree((*tab_attr)[i]->attr.attr.name); + kfree((*tab_attr)[i]); + } + + kfree(*tab_attr); + + return ret; +} + +static int add_port(struct ib_device *device, int port_num) +{ + struct ib_port *p; + struct ib_port_attr attr; + int i; + int ret; + + ret = ib_query_port(device, port_num, &attr); + if (ret) + return ret; + + p = kmalloc(sizeof *p, GFP_KERNEL); + if (!p) + return -ENOMEM; + memset(p, 0, sizeof *p); + + p->ibdev = device; + p->port_num = port_num; + p->kobj.ktype = &port_type; + + p->kobj.parent = kobject_get(&device->ports_parent); + if (!p->kobj.parent) { + ret = -EBUSY; + goto err; + } + + ret = kobject_set_name(&p->kobj, "%d", port_num); + if (ret) + goto err_put; + + ret = kobject_register(&p->kobj); + if (ret) + goto err_put; + + ret = sysfs_create_group(&p->kobj, &pma_group); + if (ret) + goto err_put; + + ret = alloc_group(&p->gid_attr, show_port_gid, attr.gid_tbl_len); + if (ret) + goto err_remove_pma; + + p->gid_group.name = "gids"; + p->gid_group.attrs = p->gid_attr; + + ret = sysfs_create_group(&p->kobj, &p->gid_group); + if (ret) + goto err_free_gid; + + ret = alloc_group(&p->pkey_attr, show_port_pkey, attr.pkey_tbl_len); + if (ret) + goto err_remove_gid; + + p->pkey_group.name = "pkeys"; + p->pkey_group.attrs = p->pkey_attr; + + ret = sysfs_create_group(&p->kobj, &p->pkey_group); + if (ret) + goto err_free_pkey; + + list_add_tail(&p->kobj.entry, &device->port_list); + + return 0; + +err_free_pkey: + for (i = 0; i < attr.pkey_tbl_len; ++i) { + kfree(p->pkey_attr[i]->name); + kfree(p->pkey_attr[i]); + } + + kfree(p->pkey_attr); + +err_remove_gid: + sysfs_remove_group(&p->kobj, &p->gid_group); + +err_free_gid: + for (i = 0; i < attr.gid_tbl_len; ++i) { + kfree(p->gid_attr[i]->name); + kfree(p->gid_attr[i]); + } + + kfree(p->gid_attr); + +err_remove_pma: + sysfs_remove_group(&p->kobj, &pma_group); + +err_put: + kobject_put(&device->ports_parent); + +err: + kfree(p); + return ret; +} + +static ssize_t show_node_type(struct class_device *cdev, char *buf) +{ + struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); + + switch (dev->node_type) { + case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); + case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); + case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); + default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); + } +} + +static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) +{ + struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); + struct ib_device_attr attr; + ssize_t ret; + + ret = ib_query_device(dev, &attr); + if (ret) + return ret; + + return sprintf(buf, "%04x:%04x:%04x:%04x\n", + be16_to_cpu(((u16 *) &attr.sys_image_guid)[0]), + be16_to_cpu(((u16 *) &attr.sys_image_guid)[1]), + be16_to_cpu(((u16 *) &attr.sys_image_guid)[2]), + be16_to_cpu(((u16 *) &attr.sys_image_guid)[3])); +} + +static ssize_t show_node_guid(struct class_device *cdev, char *buf) +{ + struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); + struct ib_device_attr attr; + ssize_t ret; + + ret = ib_query_device(dev, &attr); + if (ret) + return ret; + + return sprintf(buf, "%04x:%04x:%04x:%04x\n", + be16_to_cpu(((u16 *) &attr.node_guid)[0]), + be16_to_cpu(((u16 *) &attr.node_guid)[1]), + be16_to_cpu(((u16 *) &attr.node_guid)[2]), + be16_to_cpu(((u16 *) &attr.node_guid)[3])); +} + +static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); +static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); +static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); + +static struct class_device_attribute *ib_class_attributes[] = { + &class_device_attr_node_type, + &class_device_attr_sys_image_guid, + &class_device_attr_node_guid +}; + +static struct class ib_class = { + .name = "infiniband", + .release = ib_device_release, + .hotplug = ib_device_hotplug, +}; + +int ib_device_register_sysfs(struct ib_device *device) +{ + struct class_device *class_dev = &device->class_dev; + int ret; + int i; + + class_dev->class = &ib_class; + class_dev->class_data = device; + strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); + + INIT_LIST_HEAD(&device->port_list); + + ret = class_device_register(class_dev); + if (ret) + goto err; + + for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { + ret = class_device_create_file(class_dev, ib_class_attributes[i]); + if (ret) + goto err_unregister; + } + + device->ports_parent.parent = kobject_get(&class_dev->kobj); + if (!device->ports_parent.parent) { + ret = -EBUSY; + goto err_unregister; + } + ret = kobject_set_name(&device->ports_parent, "ports"); + if (ret) + goto err_put; + ret = kobject_register(&device->ports_parent); + if (ret) + goto err_put; + + if (device->node_type == IB_NODE_SWITCH) { + ret = add_port(device, 0); + if (ret) + goto err_put; + } else { + int i; + + for (i = 1; i <= device->phys_port_cnt; ++i) { + ret = add_port(device, i); + if (ret) + goto err_put; + } + } + + return 0; + +err_put: + { + struct kobject *p, *t; + struct ib_port *port; + + list_for_each_entry_safe(p, t, &device->port_list, entry) { + list_del(&p->entry); + port = container_of(p, struct ib_port, kobj); + sysfs_remove_group(p, &pma_group); + sysfs_remove_group(p, &port->pkey_group); + sysfs_remove_group(p, &port->gid_group); + kobject_unregister(p); + } + } + + kobject_put(&class_dev->kobj); + +err_unregister: + class_device_unregister(class_dev); + +err: + return ret; +} + +void ib_device_unregister_sysfs(struct ib_device *device) +{ + struct kobject *p, *t; + struct ib_port *port; + + list_for_each_entry_safe(p, t, &device->port_list, entry) { + list_del(&p->entry); + port = container_of(p, struct ib_port, kobj); + sysfs_remove_group(p, &pma_group); + sysfs_remove_group(p, &port->pkey_group); + sysfs_remove_group(p, &port->gid_group); + kobject_unregister(p); + } + + kobject_unregister(&device->ports_parent); + class_device_unregister(&device->class_dev); +} + +int ib_sysfs_setup(void) +{ + return class_register(&ib_class); +} + +void ib_sysfs_cleanup(void) +{ + class_unregister(&ib_class); +} |