1370 строки
35 KiB
C
1370 строки
35 KiB
C
/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "core_priv.h"
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#include <linux/slab.h>
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#include <linux/stat.h>
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#include <linux/string.h>
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include <rdma/ib_mad.h>
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#include <rdma/ib_pma.h>
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#include <rdma/ib_cache.h>
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struct ib_port;
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struct gid_attr_group {
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struct ib_port *port;
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struct kobject kobj;
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struct attribute_group ndev;
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struct attribute_group type;
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};
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struct ib_port {
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struct kobject kobj;
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struct ib_device *ibdev;
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struct gid_attr_group *gid_attr_group;
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struct attribute_group gid_group;
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struct attribute_group pkey_group;
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struct attribute_group *pma_table;
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struct attribute_group *hw_stats_ag;
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struct rdma_hw_stats *hw_stats;
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u8 port_num;
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};
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struct port_attribute {
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struct attribute attr;
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ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf);
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ssize_t (*store)(struct ib_port *, struct port_attribute *,
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const char *buf, size_t count);
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};
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#define PORT_ATTR(_name, _mode, _show, _store) \
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struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store)
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#define PORT_ATTR_RO(_name) \
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struct port_attribute port_attr_##_name = __ATTR_RO(_name)
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struct port_table_attribute {
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struct port_attribute attr;
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char name[8];
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int index;
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__be16 attr_id;
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};
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struct hw_stats_attribute {
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struct attribute attr;
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ssize_t (*show)(struct kobject *kobj,
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struct attribute *attr, char *buf);
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ssize_t (*store)(struct kobject *kobj,
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struct attribute *attr,
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const char *buf,
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size_t count);
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int index;
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u8 port_num;
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};
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static ssize_t port_attr_show(struct kobject *kobj,
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struct attribute *attr, char *buf)
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{
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struct port_attribute *port_attr =
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container_of(attr, struct port_attribute, attr);
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struct ib_port *p = container_of(kobj, struct ib_port, kobj);
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if (!port_attr->show)
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return -EIO;
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return port_attr->show(p, port_attr, buf);
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}
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static ssize_t port_attr_store(struct kobject *kobj,
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struct attribute *attr,
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const char *buf, size_t count)
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{
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struct port_attribute *port_attr =
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container_of(attr, struct port_attribute, attr);
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struct ib_port *p = container_of(kobj, struct ib_port, kobj);
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if (!port_attr->store)
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return -EIO;
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return port_attr->store(p, port_attr, buf, count);
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}
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static const struct sysfs_ops port_sysfs_ops = {
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.show = port_attr_show,
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.store = port_attr_store
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};
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static ssize_t gid_attr_show(struct kobject *kobj,
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struct attribute *attr, char *buf)
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{
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struct port_attribute *port_attr =
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container_of(attr, struct port_attribute, attr);
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struct ib_port *p = container_of(kobj, struct gid_attr_group,
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kobj)->port;
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if (!port_attr->show)
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return -EIO;
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return port_attr->show(p, port_attr, buf);
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}
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static const struct sysfs_ops gid_attr_sysfs_ops = {
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.show = gid_attr_show
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};
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static ssize_t state_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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static const char *state_name[] = {
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[IB_PORT_NOP] = "NOP",
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[IB_PORT_DOWN] = "DOWN",
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[IB_PORT_INIT] = "INIT",
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[IB_PORT_ARMED] = "ARMED",
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[IB_PORT_ACTIVE] = "ACTIVE",
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[IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER"
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};
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "%d: %s\n", attr.state,
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attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ?
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state_name[attr.state] : "UNKNOWN");
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}
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static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "0x%x\n", attr.lid);
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}
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static ssize_t lid_mask_count_show(struct ib_port *p,
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struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "%d\n", attr.lmc);
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}
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static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "0x%x\n", attr.sm_lid);
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}
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static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "%d\n", attr.sm_sl);
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}
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static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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return sprintf(buf, "0x%08x\n", attr.port_cap_flags);
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}
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static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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char *speed = "";
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int rate; /* in deci-Gb/sec */
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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switch (attr.active_speed) {
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case IB_SPEED_DDR:
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speed = " DDR";
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rate = 50;
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break;
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case IB_SPEED_QDR:
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speed = " QDR";
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rate = 100;
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break;
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case IB_SPEED_FDR10:
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speed = " FDR10";
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rate = 100;
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break;
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case IB_SPEED_FDR:
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speed = " FDR";
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rate = 140;
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break;
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case IB_SPEED_EDR:
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speed = " EDR";
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rate = 250;
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break;
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case IB_SPEED_HDR:
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speed = " HDR";
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rate = 500;
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break;
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case IB_SPEED_SDR:
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default: /* default to SDR for invalid rates */
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speed = " SDR";
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rate = 25;
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break;
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}
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rate *= ib_width_enum_to_int(attr.active_width);
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if (rate < 0)
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return -EINVAL;
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return sprintf(buf, "%d%s Gb/sec (%dX%s)\n",
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rate / 10, rate % 10 ? ".5" : "",
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ib_width_enum_to_int(attr.active_width), speed);
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}
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static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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struct ib_port_attr attr;
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ssize_t ret;
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ret = ib_query_port(p->ibdev, p->port_num, &attr);
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if (ret)
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return ret;
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switch (attr.phys_state) {
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case 1: return sprintf(buf, "1: Sleep\n");
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case 2: return sprintf(buf, "2: Polling\n");
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case 3: return sprintf(buf, "3: Disabled\n");
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case 4: return sprintf(buf, "4: PortConfigurationTraining\n");
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case 5: return sprintf(buf, "5: LinkUp\n");
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case 6: return sprintf(buf, "6: LinkErrorRecovery\n");
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case 7: return sprintf(buf, "7: Phy Test\n");
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default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state);
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}
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}
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static ssize_t link_layer_show(struct ib_port *p, struct port_attribute *unused,
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char *buf)
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{
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switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) {
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case IB_LINK_LAYER_INFINIBAND:
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return sprintf(buf, "%s\n", "InfiniBand");
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case IB_LINK_LAYER_ETHERNET:
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return sprintf(buf, "%s\n", "Ethernet");
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default:
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return sprintf(buf, "%s\n", "Unknown");
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}
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}
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static PORT_ATTR_RO(state);
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static PORT_ATTR_RO(lid);
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static PORT_ATTR_RO(lid_mask_count);
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static PORT_ATTR_RO(sm_lid);
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static PORT_ATTR_RO(sm_sl);
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static PORT_ATTR_RO(cap_mask);
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static PORT_ATTR_RO(rate);
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static PORT_ATTR_RO(phys_state);
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static PORT_ATTR_RO(link_layer);
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static struct attribute *port_default_attrs[] = {
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&port_attr_state.attr,
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&port_attr_lid.attr,
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&port_attr_lid_mask_count.attr,
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&port_attr_sm_lid.attr,
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&port_attr_sm_sl.attr,
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&port_attr_cap_mask.attr,
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&port_attr_rate.attr,
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&port_attr_phys_state.attr,
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&port_attr_link_layer.attr,
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NULL
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};
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static size_t print_ndev(const struct ib_gid_attr *gid_attr, char *buf)
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{
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if (!gid_attr->ndev)
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return -EINVAL;
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return sprintf(buf, "%s\n", gid_attr->ndev->name);
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}
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static size_t print_gid_type(const struct ib_gid_attr *gid_attr, char *buf)
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{
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return sprintf(buf, "%s\n", ib_cache_gid_type_str(gid_attr->gid_type));
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}
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static ssize_t _show_port_gid_attr(
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struct ib_port *p, struct port_attribute *attr, char *buf,
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size_t (*print)(const struct ib_gid_attr *gid_attr, char *buf))
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{
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struct port_table_attribute *tab_attr =
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container_of(attr, struct port_table_attribute, attr);
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const struct ib_gid_attr *gid_attr;
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ssize_t ret;
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gid_attr = rdma_get_gid_attr(p->ibdev, p->port_num, tab_attr->index);
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if (IS_ERR(gid_attr))
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return PTR_ERR(gid_attr);
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ret = print(gid_attr, buf);
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rdma_put_gid_attr(gid_attr);
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return ret;
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}
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static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr,
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char *buf)
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{
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struct port_table_attribute *tab_attr =
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container_of(attr, struct port_table_attribute, attr);
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const struct ib_gid_attr *gid_attr;
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ssize_t ret;
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gid_attr = rdma_get_gid_attr(p->ibdev, p->port_num, tab_attr->index);
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if (IS_ERR(gid_attr)) {
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const union ib_gid zgid = {};
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/* If reading GID fails, it is likely due to GID entry being
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* empty (invalid) or reserved GID in the table. User space
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* expects to read GID table entries as long as it given index
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* is within GID table size. Administrative/debugging tool
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* fails to query rest of the GID entries if it hits error
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* while querying a GID of the given index. To avoid user
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* space throwing such error on fail to read gid, return zero
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* GID as before. This maintains backward compatibility.
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*/
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return sprintf(buf, "%pI6\n", zgid.raw);
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}
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ret = sprintf(buf, "%pI6\n", gid_attr->gid.raw);
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rdma_put_gid_attr(gid_attr);
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return ret;
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}
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static ssize_t show_port_gid_attr_ndev(struct ib_port *p,
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struct port_attribute *attr, char *buf)
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{
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return _show_port_gid_attr(p, attr, buf, print_ndev);
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}
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static ssize_t show_port_gid_attr_gid_type(struct ib_port *p,
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struct port_attribute *attr,
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char *buf)
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{
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return _show_port_gid_attr(p, attr, buf, print_gid_type);
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}
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static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr,
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char *buf)
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{
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struct port_table_attribute *tab_attr =
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container_of(attr, struct port_table_attribute, attr);
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u16 pkey;
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ssize_t ret;
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ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey);
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if (ret)
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return ret;
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return sprintf(buf, "0x%04x\n", pkey);
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}
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#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \
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struct port_table_attribute port_pma_attr_##_name = { \
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.attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \
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.index = (_offset) | ((_width) << 16) | ((_counter) << 24), \
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.attr_id = IB_PMA_PORT_COUNTERS , \
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}
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#define PORT_PMA_ATTR_EXT(_name, _width, _offset) \
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struct port_table_attribute port_pma_attr_ext_##_name = { \
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.attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \
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.index = (_offset) | ((_width) << 16), \
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.attr_id = IB_PMA_PORT_COUNTERS_EXT , \
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}
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|
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/*
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* Get a Perfmgmt MAD block of data.
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* Returns error code or the number of bytes retrieved.
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*/
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static int get_perf_mad(struct ib_device *dev, int port_num, __be16 attr,
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void *data, int offset, size_t size)
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{
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struct ib_mad *in_mad;
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struct ib_mad *out_mad;
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size_t mad_size = sizeof(*out_mad);
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u16 out_mad_pkey_index = 0;
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ssize_t ret;
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if (!dev->process_mad)
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return -ENOSYS;
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in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
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out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
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if (!in_mad || !out_mad) {
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ret = -ENOMEM;
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goto out;
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}
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in_mad->mad_hdr.base_version = 1;
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in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
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in_mad->mad_hdr.class_version = 1;
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in_mad->mad_hdr.method = IB_MGMT_METHOD_GET;
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in_mad->mad_hdr.attr_id = attr;
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if (attr != IB_PMA_CLASS_PORT_INFO)
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in_mad->data[41] = port_num; /* PortSelect field */
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if ((dev->process_mad(dev, IB_MAD_IGNORE_MKEY,
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port_num, NULL, NULL,
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(const struct ib_mad_hdr *)in_mad, mad_size,
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(struct ib_mad_hdr *)out_mad, &mad_size,
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&out_mad_pkey_index) &
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(IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) !=
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(IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) {
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ret = -EINVAL;
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goto out;
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}
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memcpy(data, out_mad->data + offset, size);
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ret = size;
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out:
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kfree(in_mad);
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kfree(out_mad);
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return ret;
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}
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|
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static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr,
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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;
|
|
ssize_t ret;
|
|
u8 data[8];
|
|
|
|
ret = get_perf_mad(p->ibdev, p->port_num, tab_attr->attr_id, &data,
|
|
40 + offset / 8, sizeof(data));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
switch (width) {
|
|
case 4:
|
|
ret = sprintf(buf, "%u\n", (*data >>
|
|
(4 - (offset % 8))) & 0xf);
|
|
break;
|
|
case 8:
|
|
ret = sprintf(buf, "%u\n", *data);
|
|
break;
|
|
case 16:
|
|
ret = sprintf(buf, "%u\n",
|
|
be16_to_cpup((__be16 *)data));
|
|
break;
|
|
case 32:
|
|
ret = sprintf(buf, "%u\n",
|
|
be32_to_cpup((__be32 *)data));
|
|
break;
|
|
case 64:
|
|
ret = sprintf(buf, "%llu\n",
|
|
be64_to_cpup((__be64 *)data));
|
|
break;
|
|
|
|
default:
|
|
ret = 0;
|
|
}
|
|
|
|
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 PORT_PMA_ATTR(port_xmit_wait , 0, 32, 320);
|
|
|
|
/*
|
|
* Counters added by extended set
|
|
*/
|
|
static PORT_PMA_ATTR_EXT(port_xmit_data , 64, 64);
|
|
static PORT_PMA_ATTR_EXT(port_rcv_data , 64, 128);
|
|
static PORT_PMA_ATTR_EXT(port_xmit_packets , 64, 192);
|
|
static PORT_PMA_ATTR_EXT(port_rcv_packets , 64, 256);
|
|
static PORT_PMA_ATTR_EXT(unicast_xmit_packets , 64, 320);
|
|
static PORT_PMA_ATTR_EXT(unicast_rcv_packets , 64, 384);
|
|
static PORT_PMA_ATTR_EXT(multicast_xmit_packets , 64, 448);
|
|
static PORT_PMA_ATTR_EXT(multicast_rcv_packets , 64, 512);
|
|
|
|
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,
|
|
&port_pma_attr_port_xmit_wait.attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute *pma_attrs_ext[] = {
|
|
&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_ext_port_xmit_data.attr.attr,
|
|
&port_pma_attr_ext_port_rcv_data.attr.attr,
|
|
&port_pma_attr_ext_port_xmit_packets.attr.attr,
|
|
&port_pma_attr_port_xmit_wait.attr.attr,
|
|
&port_pma_attr_ext_port_rcv_packets.attr.attr,
|
|
&port_pma_attr_ext_unicast_rcv_packets.attr.attr,
|
|
&port_pma_attr_ext_unicast_xmit_packets.attr.attr,
|
|
&port_pma_attr_ext_multicast_rcv_packets.attr.attr,
|
|
&port_pma_attr_ext_multicast_xmit_packets.attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute *pma_attrs_noietf[] = {
|
|
&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_ext_port_xmit_data.attr.attr,
|
|
&port_pma_attr_ext_port_rcv_data.attr.attr,
|
|
&port_pma_attr_ext_port_xmit_packets.attr.attr,
|
|
&port_pma_attr_ext_port_rcv_packets.attr.attr,
|
|
&port_pma_attr_port_xmit_wait.attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group pma_group = {
|
|
.name = "counters",
|
|
.attrs = pma_attrs
|
|
};
|
|
|
|
static struct attribute_group pma_group_ext = {
|
|
.name = "counters",
|
|
.attrs = pma_attrs_ext
|
|
};
|
|
|
|
static struct attribute_group pma_group_noietf = {
|
|
.name = "counters",
|
|
.attrs = pma_attrs_noietf
|
|
};
|
|
|
|
static void ib_port_release(struct kobject *kobj)
|
|
{
|
|
struct ib_port *p = container_of(kobj, struct ib_port, kobj);
|
|
struct attribute *a;
|
|
int i;
|
|
|
|
if (p->gid_group.attrs) {
|
|
for (i = 0; (a = p->gid_group.attrs[i]); ++i)
|
|
kfree(a);
|
|
|
|
kfree(p->gid_group.attrs);
|
|
}
|
|
|
|
if (p->pkey_group.attrs) {
|
|
for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
|
|
kfree(a);
|
|
|
|
kfree(p->pkey_group.attrs);
|
|
}
|
|
|
|
kfree(p);
|
|
}
|
|
|
|
static void ib_port_gid_attr_release(struct kobject *kobj)
|
|
{
|
|
struct gid_attr_group *g = container_of(kobj, struct gid_attr_group,
|
|
kobj);
|
|
struct attribute *a;
|
|
int i;
|
|
|
|
if (g->ndev.attrs) {
|
|
for (i = 0; (a = g->ndev.attrs[i]); ++i)
|
|
kfree(a);
|
|
|
|
kfree(g->ndev.attrs);
|
|
}
|
|
|
|
if (g->type.attrs) {
|
|
for (i = 0; (a = g->type.attrs[i]); ++i)
|
|
kfree(a);
|
|
|
|
kfree(g->type.attrs);
|
|
}
|
|
|
|
kfree(g);
|
|
}
|
|
|
|
static struct kobj_type port_type = {
|
|
.release = ib_port_release,
|
|
.sysfs_ops = &port_sysfs_ops,
|
|
.default_attrs = port_default_attrs
|
|
};
|
|
|
|
static struct kobj_type gid_attr_type = {
|
|
.sysfs_ops = &gid_attr_sysfs_ops,
|
|
.release = ib_port_gid_attr_release
|
|
};
|
|
|
|
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;
|
|
sysfs_attr_init(&element->attr.attr);
|
|
|
|
tab_attr[i] = &element->attr.attr;
|
|
}
|
|
|
|
return tab_attr;
|
|
|
|
err:
|
|
while (--i >= 0)
|
|
kfree(tab_attr[i]);
|
|
kfree(tab_attr);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Figure out which counter table to use depending on
|
|
* the device capabilities.
|
|
*/
|
|
static struct attribute_group *get_counter_table(struct ib_device *dev,
|
|
int port_num)
|
|
{
|
|
struct ib_class_port_info cpi;
|
|
|
|
if (get_perf_mad(dev, port_num, IB_PMA_CLASS_PORT_INFO,
|
|
&cpi, 40, sizeof(cpi)) >= 0) {
|
|
if (cpi.capability_mask & IB_PMA_CLASS_CAP_EXT_WIDTH)
|
|
/* We have extended counters */
|
|
return &pma_group_ext;
|
|
|
|
if (cpi.capability_mask & IB_PMA_CLASS_CAP_EXT_WIDTH_NOIETF)
|
|
/* But not the IETF ones */
|
|
return &pma_group_noietf;
|
|
}
|
|
|
|
/* Fall back to normal counters */
|
|
return &pma_group;
|
|
}
|
|
|
|
static int update_hw_stats(struct ib_device *dev, struct rdma_hw_stats *stats,
|
|
u8 port_num, int index)
|
|
{
|
|
int ret;
|
|
|
|
if (time_is_after_eq_jiffies(stats->timestamp + stats->lifespan))
|
|
return 0;
|
|
ret = dev->get_hw_stats(dev, stats, port_num, index);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret == stats->num_counters)
|
|
stats->timestamp = jiffies;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t print_hw_stat(struct rdma_hw_stats *stats, int index, char *buf)
|
|
{
|
|
return sprintf(buf, "%llu\n", stats->value[index]);
|
|
}
|
|
|
|
static ssize_t show_hw_stats(struct kobject *kobj, struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ib_device *dev;
|
|
struct ib_port *port;
|
|
struct hw_stats_attribute *hsa;
|
|
struct rdma_hw_stats *stats;
|
|
int ret;
|
|
|
|
hsa = container_of(attr, struct hw_stats_attribute, attr);
|
|
if (!hsa->port_num) {
|
|
dev = container_of((struct device *)kobj,
|
|
struct ib_device, dev);
|
|
stats = dev->hw_stats;
|
|
} else {
|
|
port = container_of(kobj, struct ib_port, kobj);
|
|
dev = port->ibdev;
|
|
stats = port->hw_stats;
|
|
}
|
|
mutex_lock(&stats->lock);
|
|
ret = update_hw_stats(dev, stats, hsa->port_num, hsa->index);
|
|
if (ret)
|
|
goto unlock;
|
|
ret = print_hw_stat(stats, hsa->index, buf);
|
|
unlock:
|
|
mutex_unlock(&stats->lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t show_stats_lifespan(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct hw_stats_attribute *hsa;
|
|
struct rdma_hw_stats *stats;
|
|
int msecs;
|
|
|
|
hsa = container_of(attr, struct hw_stats_attribute, attr);
|
|
if (!hsa->port_num) {
|
|
struct ib_device *dev = container_of((struct device *)kobj,
|
|
struct ib_device, dev);
|
|
|
|
stats = dev->hw_stats;
|
|
} else {
|
|
struct ib_port *p = container_of(kobj, struct ib_port, kobj);
|
|
|
|
stats = p->hw_stats;
|
|
}
|
|
|
|
mutex_lock(&stats->lock);
|
|
msecs = jiffies_to_msecs(stats->lifespan);
|
|
mutex_unlock(&stats->lock);
|
|
|
|
return sprintf(buf, "%d\n", msecs);
|
|
}
|
|
|
|
static ssize_t set_stats_lifespan(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct hw_stats_attribute *hsa;
|
|
struct rdma_hw_stats *stats;
|
|
int msecs;
|
|
int jiffies;
|
|
int ret;
|
|
|
|
ret = kstrtoint(buf, 10, &msecs);
|
|
if (ret)
|
|
return ret;
|
|
if (msecs < 0 || msecs > 10000)
|
|
return -EINVAL;
|
|
jiffies = msecs_to_jiffies(msecs);
|
|
hsa = container_of(attr, struct hw_stats_attribute, attr);
|
|
if (!hsa->port_num) {
|
|
struct ib_device *dev = container_of((struct device *)kobj,
|
|
struct ib_device, dev);
|
|
|
|
stats = dev->hw_stats;
|
|
} else {
|
|
struct ib_port *p = container_of(kobj, struct ib_port, kobj);
|
|
|
|
stats = p->hw_stats;
|
|
}
|
|
|
|
mutex_lock(&stats->lock);
|
|
stats->lifespan = jiffies;
|
|
mutex_unlock(&stats->lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static void free_hsag(struct kobject *kobj, struct attribute_group *attr_group)
|
|
{
|
|
struct attribute **attr;
|
|
|
|
sysfs_remove_group(kobj, attr_group);
|
|
|
|
for (attr = attr_group->attrs; *attr; attr++)
|
|
kfree(*attr);
|
|
kfree(attr_group);
|
|
}
|
|
|
|
static struct attribute *alloc_hsa(int index, u8 port_num, const char *name)
|
|
{
|
|
struct hw_stats_attribute *hsa;
|
|
|
|
hsa = kmalloc(sizeof(*hsa), GFP_KERNEL);
|
|
if (!hsa)
|
|
return NULL;
|
|
|
|
hsa->attr.name = (char *)name;
|
|
hsa->attr.mode = S_IRUGO;
|
|
hsa->show = show_hw_stats;
|
|
hsa->store = NULL;
|
|
hsa->index = index;
|
|
hsa->port_num = port_num;
|
|
|
|
return &hsa->attr;
|
|
}
|
|
|
|
static struct attribute *alloc_hsa_lifespan(char *name, u8 port_num)
|
|
{
|
|
struct hw_stats_attribute *hsa;
|
|
|
|
hsa = kmalloc(sizeof(*hsa), GFP_KERNEL);
|
|
if (!hsa)
|
|
return NULL;
|
|
|
|
hsa->attr.name = name;
|
|
hsa->attr.mode = S_IWUSR | S_IRUGO;
|
|
hsa->show = show_stats_lifespan;
|
|
hsa->store = set_stats_lifespan;
|
|
hsa->index = 0;
|
|
hsa->port_num = port_num;
|
|
|
|
return &hsa->attr;
|
|
}
|
|
|
|
static void setup_hw_stats(struct ib_device *device, struct ib_port *port,
|
|
u8 port_num)
|
|
{
|
|
struct attribute_group *hsag;
|
|
struct rdma_hw_stats *stats;
|
|
int i, ret;
|
|
|
|
stats = device->alloc_hw_stats(device, port_num);
|
|
|
|
if (!stats)
|
|
return;
|
|
|
|
if (!stats->names || stats->num_counters <= 0)
|
|
goto err_free_stats;
|
|
|
|
/*
|
|
* Two extra attribue elements here, one for the lifespan entry and
|
|
* one to NULL terminate the list for the sysfs core code
|
|
*/
|
|
hsag = kzalloc(sizeof(*hsag) +
|
|
sizeof(void *) * (stats->num_counters + 2),
|
|
GFP_KERNEL);
|
|
if (!hsag)
|
|
goto err_free_stats;
|
|
|
|
ret = device->get_hw_stats(device, stats, port_num,
|
|
stats->num_counters);
|
|
if (ret != stats->num_counters)
|
|
goto err_free_hsag;
|
|
|
|
stats->timestamp = jiffies;
|
|
|
|
hsag->name = "hw_counters";
|
|
hsag->attrs = (void *)hsag + sizeof(*hsag);
|
|
|
|
for (i = 0; i < stats->num_counters; i++) {
|
|
hsag->attrs[i] = alloc_hsa(i, port_num, stats->names[i]);
|
|
if (!hsag->attrs[i])
|
|
goto err;
|
|
sysfs_attr_init(hsag->attrs[i]);
|
|
}
|
|
|
|
mutex_init(&stats->lock);
|
|
/* treat an error here as non-fatal */
|
|
hsag->attrs[i] = alloc_hsa_lifespan("lifespan", port_num);
|
|
if (hsag->attrs[i])
|
|
sysfs_attr_init(hsag->attrs[i]);
|
|
|
|
if (port) {
|
|
struct kobject *kobj = &port->kobj;
|
|
ret = sysfs_create_group(kobj, hsag);
|
|
if (ret)
|
|
goto err;
|
|
port->hw_stats_ag = hsag;
|
|
port->hw_stats = stats;
|
|
} else {
|
|
struct kobject *kobj = &device->dev.kobj;
|
|
ret = sysfs_create_group(kobj, hsag);
|
|
if (ret)
|
|
goto err;
|
|
device->hw_stats_ag = hsag;
|
|
device->hw_stats = stats;
|
|
}
|
|
|
|
return;
|
|
|
|
err:
|
|
for (; i >= 0; i--)
|
|
kfree(hsag->attrs[i]);
|
|
err_free_hsag:
|
|
kfree(hsag);
|
|
err_free_stats:
|
|
kfree(stats);
|
|
return;
|
|
}
|
|
|
|
static int add_port(struct ib_device *device, int port_num,
|
|
int (*port_callback)(struct ib_device *,
|
|
u8, struct kobject *))
|
|
{
|
|
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,
|
|
device->ports_kobj,
|
|
"%d", port_num);
|
|
if (ret) {
|
|
kfree(p);
|
|
return ret;
|
|
}
|
|
|
|
p->gid_attr_group = kzalloc(sizeof(*p->gid_attr_group), GFP_KERNEL);
|
|
if (!p->gid_attr_group) {
|
|
ret = -ENOMEM;
|
|
goto err_put;
|
|
}
|
|
|
|
p->gid_attr_group->port = p;
|
|
ret = kobject_init_and_add(&p->gid_attr_group->kobj, &gid_attr_type,
|
|
&p->kobj, "gid_attrs");
|
|
if (ret) {
|
|
kfree(p->gid_attr_group);
|
|
goto err_put;
|
|
}
|
|
|
|
if (device->process_mad) {
|
|
p->pma_table = get_counter_table(device, port_num);
|
|
ret = sysfs_create_group(&p->kobj, p->pma_table);
|
|
if (ret)
|
|
goto err_put_gid_attrs;
|
|
}
|
|
|
|
p->gid_group.name = "gids";
|
|
p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
|
|
if (!p->gid_group.attrs) {
|
|
ret = -ENOMEM;
|
|
goto err_remove_pma;
|
|
}
|
|
|
|
ret = sysfs_create_group(&p->kobj, &p->gid_group);
|
|
if (ret)
|
|
goto err_free_gid;
|
|
|
|
p->gid_attr_group->ndev.name = "ndevs";
|
|
p->gid_attr_group->ndev.attrs = alloc_group_attrs(show_port_gid_attr_ndev,
|
|
attr.gid_tbl_len);
|
|
if (!p->gid_attr_group->ndev.attrs) {
|
|
ret = -ENOMEM;
|
|
goto err_remove_gid;
|
|
}
|
|
|
|
ret = sysfs_create_group(&p->gid_attr_group->kobj,
|
|
&p->gid_attr_group->ndev);
|
|
if (ret)
|
|
goto err_free_gid_ndev;
|
|
|
|
p->gid_attr_group->type.name = "types";
|
|
p->gid_attr_group->type.attrs = alloc_group_attrs(show_port_gid_attr_gid_type,
|
|
attr.gid_tbl_len);
|
|
if (!p->gid_attr_group->type.attrs) {
|
|
ret = -ENOMEM;
|
|
goto err_remove_gid_ndev;
|
|
}
|
|
|
|
ret = sysfs_create_group(&p->gid_attr_group->kobj,
|
|
&p->gid_attr_group->type);
|
|
if (ret)
|
|
goto err_free_gid_type;
|
|
|
|
p->pkey_group.name = "pkeys";
|
|
p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
|
|
attr.pkey_tbl_len);
|
|
if (!p->pkey_group.attrs) {
|
|
ret = -ENOMEM;
|
|
goto err_remove_gid_type;
|
|
}
|
|
|
|
ret = sysfs_create_group(&p->kobj, &p->pkey_group);
|
|
if (ret)
|
|
goto err_free_pkey;
|
|
|
|
if (port_callback) {
|
|
ret = port_callback(device, port_num, &p->kobj);
|
|
if (ret)
|
|
goto err_remove_pkey;
|
|
}
|
|
|
|
/*
|
|
* If port == 0, it means hw_counters are per device and not per
|
|
* port, so holder should be device. Therefore skip per port conunter
|
|
* initialization.
|
|
*/
|
|
if (device->alloc_hw_stats && port_num)
|
|
setup_hw_stats(device, p, port_num);
|
|
|
|
list_add_tail(&p->kobj.entry, &device->port_list);
|
|
|
|
kobject_uevent(&p->kobj, KOBJ_ADD);
|
|
return 0;
|
|
|
|
err_remove_pkey:
|
|
sysfs_remove_group(&p->kobj, &p->pkey_group);
|
|
|
|
err_free_pkey:
|
|
for (i = 0; i < attr.pkey_tbl_len; ++i)
|
|
kfree(p->pkey_group.attrs[i]);
|
|
|
|
kfree(p->pkey_group.attrs);
|
|
p->pkey_group.attrs = NULL;
|
|
|
|
err_remove_gid_type:
|
|
sysfs_remove_group(&p->gid_attr_group->kobj,
|
|
&p->gid_attr_group->type);
|
|
|
|
err_free_gid_type:
|
|
for (i = 0; i < attr.gid_tbl_len; ++i)
|
|
kfree(p->gid_attr_group->type.attrs[i]);
|
|
|
|
kfree(p->gid_attr_group->type.attrs);
|
|
p->gid_attr_group->type.attrs = NULL;
|
|
|
|
err_remove_gid_ndev:
|
|
sysfs_remove_group(&p->gid_attr_group->kobj,
|
|
&p->gid_attr_group->ndev);
|
|
|
|
err_free_gid_ndev:
|
|
for (i = 0; i < attr.gid_tbl_len; ++i)
|
|
kfree(p->gid_attr_group->ndev.attrs[i]);
|
|
|
|
kfree(p->gid_attr_group->ndev.attrs);
|
|
p->gid_attr_group->ndev.attrs = NULL;
|
|
|
|
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);
|
|
p->gid_group.attrs = NULL;
|
|
|
|
err_remove_pma:
|
|
if (p->pma_table)
|
|
sysfs_remove_group(&p->kobj, p->pma_table);
|
|
|
|
err_put_gid_attrs:
|
|
kobject_put(&p->gid_attr_group->kobj);
|
|
|
|
err_put:
|
|
kobject_put(&p->kobj);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t node_type_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
|
|
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_USNIC: return sprintf(buf, "%d: usNIC\n", dev->node_type);
|
|
case RDMA_NODE_USNIC_UDP: return sprintf(buf, "%d: usNIC UDP\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 DEVICE_ATTR_RO(node_type);
|
|
|
|
static ssize_t sys_image_guid_show(struct device *device,
|
|
struct device_attribute *dev_attr, char *buf)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
|
|
return sprintf(buf, "%04x:%04x:%04x:%04x\n",
|
|
be16_to_cpu(((__be16 *) &dev->attrs.sys_image_guid)[0]),
|
|
be16_to_cpu(((__be16 *) &dev->attrs.sys_image_guid)[1]),
|
|
be16_to_cpu(((__be16 *) &dev->attrs.sys_image_guid)[2]),
|
|
be16_to_cpu(((__be16 *) &dev->attrs.sys_image_guid)[3]));
|
|
}
|
|
static DEVICE_ATTR_RO(sys_image_guid);
|
|
|
|
static ssize_t node_guid_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
|
|
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 DEVICE_ATTR_RO(node_guid);
|
|
|
|
static ssize_t node_desc_show(struct device *device,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
|
|
return sprintf(buf, "%.64s\n", dev->node_desc);
|
|
}
|
|
|
|
static ssize_t node_desc_store(struct device *device,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
struct ib_device_modify desc = {};
|
|
int ret;
|
|
|
|
if (!dev->modify_device)
|
|
return -EIO;
|
|
|
|
memcpy(desc.node_desc, buf, min_t(int, count, IB_DEVICE_NODE_DESC_MAX));
|
|
ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR_RW(node_desc);
|
|
|
|
static ssize_t fw_ver_show(struct device *device, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ib_device *dev = container_of(device, struct ib_device, dev);
|
|
|
|
ib_get_device_fw_str(dev, buf);
|
|
strlcat(buf, "\n", IB_FW_VERSION_NAME_MAX);
|
|
return strlen(buf);
|
|
}
|
|
static DEVICE_ATTR_RO(fw_ver);
|
|
|
|
static struct attribute *ib_dev_attrs[] = {
|
|
&dev_attr_node_type.attr,
|
|
&dev_attr_node_guid.attr,
|
|
&dev_attr_sys_image_guid.attr,
|
|
&dev_attr_fw_ver.attr,
|
|
&dev_attr_node_desc.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group dev_attr_group = {
|
|
.attrs = ib_dev_attrs,
|
|
};
|
|
|
|
static void free_port_list_attributes(struct ib_device *device)
|
|
{
|
|
struct kobject *p, *t;
|
|
|
|
list_for_each_entry_safe(p, t, &device->port_list, entry) {
|
|
struct ib_port *port = container_of(p, struct ib_port, kobj);
|
|
list_del(&p->entry);
|
|
if (port->hw_stats) {
|
|
kfree(port->hw_stats);
|
|
free_hsag(&port->kobj, port->hw_stats_ag);
|
|
}
|
|
|
|
if (port->pma_table)
|
|
sysfs_remove_group(p, port->pma_table);
|
|
sysfs_remove_group(p, &port->pkey_group);
|
|
sysfs_remove_group(p, &port->gid_group);
|
|
sysfs_remove_group(&port->gid_attr_group->kobj,
|
|
&port->gid_attr_group->ndev);
|
|
sysfs_remove_group(&port->gid_attr_group->kobj,
|
|
&port->gid_attr_group->type);
|
|
kobject_put(&port->gid_attr_group->kobj);
|
|
kobject_put(p);
|
|
}
|
|
|
|
kobject_put(device->ports_kobj);
|
|
}
|
|
|
|
int ib_device_register_sysfs(struct ib_device *device,
|
|
int (*port_callback)(struct ib_device *,
|
|
u8, struct kobject *))
|
|
{
|
|
struct device *class_dev = &device->dev;
|
|
int ret;
|
|
int i;
|
|
|
|
device->groups[0] = &dev_attr_group;
|
|
class_dev->groups = device->groups;
|
|
|
|
ret = device_add(class_dev);
|
|
if (ret)
|
|
goto err;
|
|
|
|
device->ports_kobj = kobject_create_and_add("ports", &class_dev->kobj);
|
|
if (!device->ports_kobj) {
|
|
ret = -ENOMEM;
|
|
goto err_put;
|
|
}
|
|
|
|
if (rdma_cap_ib_switch(device)) {
|
|
ret = add_port(device, 0, port_callback);
|
|
if (ret)
|
|
goto err_put;
|
|
} else {
|
|
for (i = 1; i <= device->phys_port_cnt; ++i) {
|
|
ret = add_port(device, i, port_callback);
|
|
if (ret)
|
|
goto err_put;
|
|
}
|
|
}
|
|
|
|
if (device->alloc_hw_stats)
|
|
setup_hw_stats(device, NULL, 0);
|
|
|
|
return 0;
|
|
|
|
err_put:
|
|
free_port_list_attributes(device);
|
|
device_del(class_dev);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
void ib_device_unregister_sysfs(struct ib_device *device)
|
|
{
|
|
/* Hold device until ib_dealloc_device() */
|
|
get_device(&device->dev);
|
|
|
|
free_port_list_attributes(device);
|
|
|
|
if (device->hw_stats) {
|
|
kfree(device->hw_stats);
|
|
free_hsag(&device->dev.kobj, device->hw_stats_ag);
|
|
}
|
|
|
|
device_unregister(&device->dev);
|
|
}
|