| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * Copyright (c) 2005 Mellanox Technologies Ltd. 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. |
| * |
| * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $ |
| */ |
| |
| #include "core_priv.h" |
| |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| |
| #include <rdma/ib_mad.h> |
| |
| struct ib_port { |
| struct kobject kobj; |
| struct ib_device *ibdev; |
| struct attribute_group gid_group; |
| struct attribute_group pkey_group; |
| 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; |
| char name[8]; |
| int index; |
| }; |
| |
| static inline int ibdev_is_alive(const struct ib_device *dev) |
| { |
| return dev->reg_state == IB_DEV_REGISTERED; |
| } |
| |
| 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 -EIO; |
| if (!ibdev_is_alive(p->ibdev)) |
| return -ENODEV; |
| |
| 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(((__be16 *) gid.raw)[0]), |
| be16_to_cpu(((__be16 *) gid.raw)[1]), |
| be16_to_cpu(((__be16 *) gid.raw)[2]), |
| be16_to_cpu(((__be16 *) gid.raw)[3]), |
| be16_to_cpu(((__be16 *) gid.raw)[4]), |
| be16_to_cpu(((__be16 *) gid.raw)[5]), |
| be16_to_cpu(((__be16 *) gid.raw)[6]), |
| be16_to_cpu(((__be16 *) 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 = kzalloc(sizeof *in_mad, GFP_KERNEL); |
| out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
| if (!in_mad || !out_mad) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| 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] >> |
| (4 - (offset % 8))) & 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((__be16 *)(out_mad->data + 40 + offset / 8))); |
| break; |
| case 32: |
| ret = sprintf(buf, "%u\n", |
| be32_to_cpup((__be32 *)(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_group.attrs[i]); ++i) |
| kfree(a); |
| |
| kfree(p->gid_group.attrs); |
| |
| for (i = 0; (a = p->pkey_group.attrs[i]); ++i) |
| kfree(a); |
| |
| kfree(p->pkey_group.attrs); |
| |
| 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_uevent(struct class_device *cdev, |
| struct kobj_uevent_env *env) |
| { |
| struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| |
| if (add_uevent_var(env, "NAME=%s", dev->name)) |
| return -ENOMEM; |
| |
| /* |
| * It would be nice to pass the node GUID with the event... |
| */ |
| |
| return 0; |
| } |
| |
| static struct attribute ** |
| alloc_group_attrs(ssize_t (*show)(struct ib_port *, |
| struct port_attribute *, char *buf), |
| int len) |
| { |
| struct attribute **tab_attr; |
| struct port_table_attribute *element; |
| int i; |
| |
| tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); |
| if (!tab_attr) |
| return NULL; |
| |
| for (i = 0; i < len; i++) { |
| element = kzalloc(sizeof(struct port_table_attribute), |
| GFP_KERNEL); |
| if (!element) |
| goto err; |
| |
| if (snprintf(element->name, sizeof(element->name), |
| "%d", i) >= sizeof(element->name)) { |
| kfree(element); |
| goto err; |
| } |
| |
| element->attr.attr.name = element->name; |
| element->attr.attr.mode = S_IRUGO; |
| element->attr.show = show; |
| element->index = i; |
| |
| tab_attr[i] = &element->attr.attr; |
| } |
| |
| return tab_attr; |
| |
| err: |
| while (--i >= 0) |
| kfree(tab_attr[i]); |
| kfree(tab_attr); |
| return NULL; |
| } |
| |
| 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 = kzalloc(sizeof *p, GFP_KERNEL); |
| if (!p) |
| return -ENOMEM; |
| |
| p->ibdev = device; |
| p->port_num = port_num; |
| |
| ret = kobject_init_and_add(&p->kobj, &port_type, |
| kobject_get(device->ports_parent), |
| "%d", port_num); |
| if (ret) |
| goto err_put; |
| |
| ret = sysfs_create_group(&p->kobj, &pma_group); |
| if (ret) |
| goto err_put; |
| |
| p->gid_group.name = "gids"; |
| p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
| if (!p->gid_group.attrs) |
| goto err_remove_pma; |
| |
| ret = sysfs_create_group(&p->kobj, &p->gid_group); |
| if (ret) |
| goto err_free_gid; |
| |
| p->pkey_group.name = "pkeys"; |
| p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
| attr.pkey_tbl_len); |
| if (!p->pkey_group.attrs) |
| goto err_remove_gid; |
| |
| ret = sysfs_create_group(&p->kobj, &p->pkey_group); |
| if (ret) |
| goto err_free_pkey; |
| |
| list_add_tail(&p->kobj.entry, &device->port_list); |
| |
| kobject_uevent(&p->kobj, KOBJ_ADD); |
| return 0; |
| |
| err_free_pkey: |
| for (i = 0; i < attr.pkey_tbl_len; ++i) |
| kfree(p->pkey_group.attrs[i]); |
| |
| kfree(p->pkey_group.attrs); |
| |
| 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_group.attrs[i]); |
| |
| kfree(p->gid_group.attrs); |
| |
| err_remove_pma: |
| sysfs_remove_group(&p->kobj, &pma_group); |
| |
| err_put: |
| kobject_put(device->ports_parent); |
| 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); |
| |
| if (!ibdev_is_alive(dev)) |
| return -ENODEV; |
| |
| switch (dev->node_type) { |
| case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
| case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); |
| case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); |
| case RDMA_NODE_IB_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; |
| |
| if (!ibdev_is_alive(dev)) |
| return -ENODEV; |
| |
| ret = ib_query_device(dev, &attr); |
| if (ret) |
| return ret; |
| |
| return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
| be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
| be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), |
| be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), |
| be16_to_cpu(((__be16 *) &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); |
| |
| if (!ibdev_is_alive(dev)) |
| return -ENODEV; |
| |
| return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
| be16_to_cpu(((__be16 *) &dev->node_guid)[0]), |
| be16_to_cpu(((__be16 *) &dev->node_guid)[1]), |
| be16_to_cpu(((__be16 *) &dev->node_guid)[2]), |
| be16_to_cpu(((__be16 *) &dev->node_guid)[3])); |
| } |
| |
| static ssize_t show_node_desc(struct class_device *cdev, char *buf) |
| { |
| struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| |
| return sprintf(buf, "%.64s\n", dev->node_desc); |
| } |
| |
| static ssize_t set_node_desc(struct class_device *cdev, const char *buf, |
| size_t count) |
| { |
| struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| struct ib_device_modify desc = {}; |
| int ret; |
| |
| if (!dev->modify_device) |
| return -EIO; |
| |
| memcpy(desc.node_desc, buf, min_t(int, count, 64)); |
| ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); |
| if (ret) |
| return ret; |
| |
| return count; |
| } |
| |
| 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 CLASS_DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, |
| set_node_desc); |
| |
| static struct class_device_attribute *ib_class_attributes[] = { |
| &class_device_attr_node_type, |
| &class_device_attr_sys_image_guid, |
| &class_device_attr_node_guid, |
| &class_device_attr_node_desc |
| }; |
| |
| static struct class ib_class = { |
| .name = "infiniband", |
| .release = ib_device_release, |
| .uevent = ib_device_uevent, |
| }; |
| |
| 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; |
| class_dev->dev = device->dma_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 = kobject_create_and_add("ports", |
| kobject_get(&class_dev->kobj)); |
| if (!device->ports_parent) |
| goto err_put; |
| |
| if (device->node_type == RDMA_NODE_IB_SWITCH) { |
| ret = add_port(device, 0); |
| if (ret) |
| goto err_put; |
| } else { |
| 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); |
| } |