/*
* 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.
*/
#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 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;
return port_attr->show(p, port_attr, buf);
}
static const 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, "%pI6\n", gid.raw);
}
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 device *device)
{
struct ib_device *dev = container_of(device, struct ib_device, dev);
kfree(dev);
}
static int ib_device_uevent(struct device *device,
struct kobj_uevent_env *env)
{
struct ib_device *dev = container_of(device, struct ib_device, 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;
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;
}
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 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_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 device *device,
struct device_attribute *dev_attr, char *buf)
{
struct ib_device *dev = container_of(device, struct ib_device, 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(((__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 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 ssize_t show_node_desc(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 set_node_desc(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, 64));
ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
static struct device_attribute *ib_class_attributes[] = {
&dev_attr_node_type,
&dev_attr_sys_image_guid,
&dev_attr_node_guid,
&dev_attr_node_desc
};
static struct class ib_class = {
.name = "infiniband",
.dev_release = ib_device_release,
.dev_uevent = ib_device_uevent,
};
/* Show a given an attribute in the statistics group */
static ssize_t show_protocol_stat(const struct device *device,
struct device_attribute *attr, char *buf,
unsigned offset)
{
struct ib_device *dev = container_of(device, struct ib_device, dev);
union rdma_protocol_stats stats;
ssize_t ret;
ret = dev->get_protocol_stats(dev, &stats);
if (ret)
return ret;
return sprintf(buf, "%llu\n",
(unsigned long long) ((u64 *) &stats)[offset]);
}
/* generate a read-only iwarp statistics attribute */
#define IW_STATS_ENTRY(name) \
static ssize_t show_##name(struct device *device, \
struct device_attribute *attr, char *buf) \
{ \
return show_protocol_stat(device, attr, buf, \
offsetof(struct iw_protocol_stats, name) / \
sizeof (u64)); \
} \
static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
IW_STATS_ENTRY(ipInReceives);
IW_STATS_ENTRY(ipInHdrErrors);
IW_STATS_ENTRY(ipInTooBigErrors);
IW_STATS_ENTRY(ipInNoRoutes);
IW_STATS_ENTRY(ipInAddrErrors);
IW_STATS_ENTRY(ipInUnknownProtos);
IW_STATS_ENTRY(ipInTruncatedPkts);
IW_STATS_ENTRY(ipInDiscards);
IW_STATS_ENTRY(ipInDelivers);
IW_STATS_ENTRY(ipOutForwDatagrams);
IW_STATS_ENTRY(ipOutRequests);
IW_STATS_ENTRY(ipOutDiscards);
IW_STATS_ENTRY(ipOutNoRoutes);
IW_STATS_ENTRY(ipReasmTimeout);
IW_STATS_ENTRY(ipReasmReqds);
IW_STATS_ENTRY(ipReasmOKs);
IW_STATS_ENTRY(ipReasmFails);
IW_STATS_ENTRY(ipFragOKs);
IW_STATS_ENTRY(ipFragFails);
IW_STATS_ENTRY(ipFragCreates);
IW_STATS_ENTRY(ipInMcastPkts);
IW_STATS_ENTRY(ipOutMcastPkts);
IW_STATS_ENTRY(ipInBcastPkts);
IW_STATS_ENTRY(ipOutBcastPkts);
IW_STATS_ENTRY(tcpRtoAlgorithm);
IW_STATS_ENTRY(tcpRtoMin);
IW_STATS_ENTRY(tcpRtoMax);
IW_STATS_ENTRY(tcpMaxConn);
IW_STATS_ENTRY(tcpActiveOpens);
IW_STATS_ENTRY(tcpPassiveOpens);
IW_STATS_ENTRY(tcpAttemptFails);
IW_STATS_ENTRY(tcpEstabResets);
IW_STATS_ENTRY(tcpCurrEstab);
IW_STATS_ENTRY(tcpInSegs);
IW_STATS_ENTRY(tcpOutSegs);
IW_STATS_ENTRY(tcpRetransSegs);
IW_STATS_ENTRY(tcpInErrs);
IW_STATS_ENTRY(tcpOutRsts);
static struct attribute *iw_proto_stats_attrs[] = {
&dev_attr_ipInReceives.attr,
&dev_attr_ipInHdrErrors.attr,
&dev_attr_ipInTooBigErrors.attr,
&dev_attr_ipInNoRoutes.attr,
&dev_attr_ipInAddrErrors.attr,
&dev_attr_ipInUnknownProtos.attr,
&dev_attr_ipInTruncatedPkts.attr,
&dev_attr_ipInDiscards.attr,
&dev_attr_ipInDelivers.attr,
&dev_attr_ipOutForwDatagrams.attr,
&dev_attr_ipOutRequests.attr,
&dev_attr_ipOutDiscards.attr,
&dev_attr_ipOutNoRoutes.attr,
&dev_attr_ipReasmTimeout.attr,
&dev_attr_ipReasmReqds.attr,
&dev_attr_ipReasmOKs.attr,
&dev_attr_ipReasmFails.attr,
&dev_attr_ipFragOKs.attr,
&dev_attr_ipFragFails.attr,
&dev_attr_ipFragCreates.attr,
&dev_attr_ipInMcastPkts.attr,
&dev_attr_ipOutMcastPkts.attr,
&dev_attr_ipInBcastPkts.attr,
&dev_attr_ipOutBcastPkts.attr,
&dev_attr_tcpRtoAlgorithm.attr,
&dev_attr_tcpRtoMin.attr,
&dev_attr_tcpRtoMax.attr,
&dev_attr_tcpMaxConn.attr,
&dev_attr_tcpActiveOpens.attr,
&dev_attr_tcpPassiveOpens.attr,
&dev_attr_tcpAttemptFails.attr,
&dev_attr_tcpEstabResets.attr,
&dev_attr_tcpCurrEstab.attr,
&dev_attr_tcpInSegs.attr,
&dev_attr_tcpOutSegs.attr,
&dev_attr_tcpRetransSegs.attr,
&dev_attr_tcpInErrs.attr,
&dev_attr_tcpOutRsts.attr,
NULL
};
static struct attribute_group iw_stats_group = {
.name = "proto_stats",
.attrs = iw_proto_stats_attrs,
};
int ib_device_register_sysfs(struct ib_device *device)
{
struct device *class_dev = &device->dev;
int ret;
int i;
class_dev->class = &ib_class;
class_dev->parent = device->dma_device;
dev_set_name(class_dev, device->name);
dev_set_drvdata(class_dev, device);
INIT_LIST_HEAD(&device->port_list);
ret = device_register(class_dev);
if (ret)
goto err;
for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
ret = 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) {
ret = -ENOMEM;
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;
}
}
if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
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_put(p);
}
}
kobject_put(&class_dev->kobj);
err_unregister:
device_unregister(class_dev);
err:
return ret;
}
void ib_device_unregister_sysfs(struct ib_device *device)
{
struct kobject *p, *t;
struct ib_port *port;
/* Hold kobject until ib_dealloc_device() */
kobject_get(&device->dev.kobj);
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_put(p);
}
kobject_put(device->ports_parent);
device_unregister(&device->dev);
}
int ib_sysfs_setup(void)
{
return class_register(&ib_class);
}
void ib_sysfs_cleanup(void)
{
class_unregister(&ib_class);
}
