forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1460 lines
39 KiB
1460 lines
39 KiB
/* |
|
* 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/stat.h> |
|
#include <linux/string.h> |
|
#include <linux/netdevice.h> |
|
#include <linux/ethtool.h> |
|
|
|
#include <rdma/ib_mad.h> |
|
#include <rdma/ib_pma.h> |
|
#include <rdma/ib_cache.h> |
|
#include <rdma/rdma_counter.h> |
|
#include <rdma/ib_sysfs.h> |
|
|
|
struct port_table_attribute { |
|
struct ib_port_attribute attr; |
|
char name[8]; |
|
int index; |
|
__be16 attr_id; |
|
}; |
|
|
|
struct gid_attr_group { |
|
struct ib_port *port; |
|
struct kobject kobj; |
|
struct attribute_group groups[2]; |
|
const struct attribute_group *groups_list[3]; |
|
struct port_table_attribute attrs_list[]; |
|
}; |
|
|
|
struct ib_port { |
|
struct kobject kobj; |
|
struct ib_device *ibdev; |
|
struct gid_attr_group *gid_attr_group; |
|
struct hw_stats_port_data *hw_stats_data; |
|
|
|
struct attribute_group groups[3]; |
|
const struct attribute_group *groups_list[5]; |
|
u32 port_num; |
|
struct port_table_attribute attrs_list[]; |
|
}; |
|
|
|
struct hw_stats_device_attribute { |
|
struct device_attribute attr; |
|
ssize_t (*show)(struct ib_device *ibdev, struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, char *buf); |
|
ssize_t (*store)(struct ib_device *ibdev, struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, |
|
const char *buf, size_t count); |
|
}; |
|
|
|
struct hw_stats_port_attribute { |
|
struct ib_port_attribute attr; |
|
ssize_t (*show)(struct ib_device *ibdev, struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, char *buf); |
|
ssize_t (*store)(struct ib_device *ibdev, struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, |
|
const char *buf, size_t count); |
|
}; |
|
|
|
struct hw_stats_device_data { |
|
struct attribute_group group; |
|
struct rdma_hw_stats *stats; |
|
struct hw_stats_device_attribute attrs[]; |
|
}; |
|
|
|
struct hw_stats_port_data { |
|
struct rdma_hw_stats *stats; |
|
struct hw_stats_port_attribute attrs[]; |
|
}; |
|
|
|
static ssize_t port_attr_show(struct kobject *kobj, |
|
struct attribute *attr, char *buf) |
|
{ |
|
struct ib_port_attribute *port_attr = |
|
container_of(attr, struct ib_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->ibdev, p->port_num, port_attr, buf); |
|
} |
|
|
|
static ssize_t port_attr_store(struct kobject *kobj, |
|
struct attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct ib_port_attribute *port_attr = |
|
container_of(attr, struct ib_port_attribute, attr); |
|
struct ib_port *p = container_of(kobj, struct ib_port, kobj); |
|
|
|
if (!port_attr->store) |
|
return -EIO; |
|
return port_attr->store(p->ibdev, p->port_num, port_attr, buf, count); |
|
} |
|
|
|
struct ib_device *ib_port_sysfs_get_ibdev_kobj(struct kobject *kobj, |
|
u32 *port_num) |
|
{ |
|
struct ib_port *port = container_of(kobj, struct ib_port, kobj); |
|
|
|
*port_num = port->port_num; |
|
return port->ibdev; |
|
} |
|
EXPORT_SYMBOL(ib_port_sysfs_get_ibdev_kobj); |
|
|
|
static const struct sysfs_ops port_sysfs_ops = { |
|
.show = port_attr_show, |
|
.store = port_attr_store |
|
}; |
|
|
|
static ssize_t hw_stat_device_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct hw_stats_device_attribute *stat_attr = |
|
container_of(attr, struct hw_stats_device_attribute, attr); |
|
struct ib_device *ibdev = container_of(dev, struct ib_device, dev); |
|
|
|
return stat_attr->show(ibdev, ibdev->hw_stats_data->stats, |
|
stat_attr - ibdev->hw_stats_data->attrs, 0, buf); |
|
} |
|
|
|
static ssize_t hw_stat_device_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct hw_stats_device_attribute *stat_attr = |
|
container_of(attr, struct hw_stats_device_attribute, attr); |
|
struct ib_device *ibdev = container_of(dev, struct ib_device, dev); |
|
|
|
return stat_attr->store(ibdev, ibdev->hw_stats_data->stats, |
|
stat_attr - ibdev->hw_stats_data->attrs, 0, buf, |
|
count); |
|
} |
|
|
|
static ssize_t hw_stat_port_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, char *buf) |
|
{ |
|
struct hw_stats_port_attribute *stat_attr = |
|
container_of(attr, struct hw_stats_port_attribute, attr); |
|
struct ib_port *port = ibdev->port_data[port_num].sysfs; |
|
|
|
return stat_attr->show(ibdev, port->hw_stats_data->stats, |
|
stat_attr - port->hw_stats_data->attrs, |
|
port->port_num, buf); |
|
} |
|
|
|
static ssize_t hw_stat_port_store(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct hw_stats_port_attribute *stat_attr = |
|
container_of(attr, struct hw_stats_port_attribute, attr); |
|
struct ib_port *port = ibdev->port_data[port_num].sysfs; |
|
|
|
return stat_attr->store(ibdev, port->hw_stats_data->stats, |
|
stat_attr - port->hw_stats_data->attrs, |
|
port->port_num, buf, count); |
|
} |
|
|
|
static ssize_t gid_attr_show(struct kobject *kobj, |
|
struct attribute *attr, char *buf) |
|
{ |
|
struct ib_port_attribute *port_attr = |
|
container_of(attr, struct ib_port_attribute, attr); |
|
struct ib_port *p = container_of(kobj, struct gid_attr_group, |
|
kobj)->port; |
|
|
|
if (!port_attr->show) |
|
return -EIO; |
|
|
|
return port_attr->show(p->ibdev, p->port_num, port_attr, buf); |
|
} |
|
|
|
static const struct sysfs_ops gid_attr_sysfs_ops = { |
|
.show = gid_attr_show |
|
}; |
|
|
|
static ssize_t state_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_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(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(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_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "0x%x\n", attr.lid); |
|
} |
|
|
|
static ssize_t lid_mask_count_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "%u\n", attr.lmc); |
|
} |
|
|
|
static ssize_t sm_lid_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "0x%x\n", attr.sm_lid); |
|
} |
|
|
|
static ssize_t sm_sl_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "%u\n", attr.sm_sl); |
|
} |
|
|
|
static ssize_t cap_mask_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "0x%08x\n", attr.port_cap_flags); |
|
} |
|
|
|
static ssize_t rate_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
char *speed = ""; |
|
int rate; /* in deci-Gb/sec */ |
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
switch (attr.active_speed) { |
|
case IB_SPEED_DDR: |
|
speed = " DDR"; |
|
rate = 50; |
|
break; |
|
case IB_SPEED_QDR: |
|
speed = " QDR"; |
|
rate = 100; |
|
break; |
|
case IB_SPEED_FDR10: |
|
speed = " FDR10"; |
|
rate = 100; |
|
break; |
|
case IB_SPEED_FDR: |
|
speed = " FDR"; |
|
rate = 140; |
|
break; |
|
case IB_SPEED_EDR: |
|
speed = " EDR"; |
|
rate = 250; |
|
break; |
|
case IB_SPEED_HDR: |
|
speed = " HDR"; |
|
rate = 500; |
|
break; |
|
case IB_SPEED_NDR: |
|
speed = " NDR"; |
|
rate = 1000; |
|
break; |
|
case IB_SPEED_SDR: |
|
default: /* default to SDR for invalid rates */ |
|
speed = " SDR"; |
|
rate = 25; |
|
break; |
|
} |
|
|
|
rate *= ib_width_enum_to_int(attr.active_width); |
|
if (rate < 0) |
|
return -EINVAL; |
|
|
|
return sysfs_emit(buf, "%d%s Gb/sec (%dX%s)\n", rate / 10, |
|
rate % 10 ? ".5" : "", |
|
ib_width_enum_to_int(attr.active_width), speed); |
|
} |
|
|
|
static const char *phys_state_to_str(enum ib_port_phys_state phys_state) |
|
{ |
|
static const char *phys_state_str[] = { |
|
"<unknown>", |
|
"Sleep", |
|
"Polling", |
|
"Disabled", |
|
"PortConfigurationTraining", |
|
"LinkUp", |
|
"LinkErrorRecovery", |
|
"Phy Test", |
|
}; |
|
|
|
if (phys_state < ARRAY_SIZE(phys_state_str)) |
|
return phys_state_str[phys_state]; |
|
return "<unknown>"; |
|
} |
|
|
|
static ssize_t phys_state_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
struct ib_port_attr attr; |
|
|
|
ssize_t ret; |
|
|
|
ret = ib_query_port(ibdev, port_num, &attr); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(buf, "%u: %s\n", attr.phys_state, |
|
phys_state_to_str(attr.phys_state)); |
|
} |
|
|
|
static ssize_t link_layer_show(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *unused, char *buf) |
|
{ |
|
const char *output; |
|
|
|
switch (rdma_port_get_link_layer(ibdev, port_num)) { |
|
case IB_LINK_LAYER_INFINIBAND: |
|
output = "InfiniBand"; |
|
break; |
|
case IB_LINK_LAYER_ETHERNET: |
|
output = "Ethernet"; |
|
break; |
|
default: |
|
output = "Unknown"; |
|
break; |
|
} |
|
|
|
return sysfs_emit(buf, "%s\n", output); |
|
} |
|
|
|
static IB_PORT_ATTR_RO(state); |
|
static IB_PORT_ATTR_RO(lid); |
|
static IB_PORT_ATTR_RO(lid_mask_count); |
|
static IB_PORT_ATTR_RO(sm_lid); |
|
static IB_PORT_ATTR_RO(sm_sl); |
|
static IB_PORT_ATTR_RO(cap_mask); |
|
static IB_PORT_ATTR_RO(rate); |
|
static IB_PORT_ATTR_RO(phys_state); |
|
static IB_PORT_ATTR_RO(link_layer); |
|
|
|
static struct attribute *port_default_attrs[] = { |
|
&ib_port_attr_state.attr, |
|
&ib_port_attr_lid.attr, |
|
&ib_port_attr_lid_mask_count.attr, |
|
&ib_port_attr_sm_lid.attr, |
|
&ib_port_attr_sm_sl.attr, |
|
&ib_port_attr_cap_mask.attr, |
|
&ib_port_attr_rate.attr, |
|
&ib_port_attr_phys_state.attr, |
|
&ib_port_attr_link_layer.attr, |
|
NULL |
|
}; |
|
|
|
static ssize_t print_ndev(const struct ib_gid_attr *gid_attr, char *buf) |
|
{ |
|
struct net_device *ndev; |
|
int ret = -EINVAL; |
|
|
|
rcu_read_lock(); |
|
ndev = rcu_dereference(gid_attr->ndev); |
|
if (ndev) |
|
ret = sysfs_emit(buf, "%s\n", ndev->name); |
|
rcu_read_unlock(); |
|
return ret; |
|
} |
|
|
|
static ssize_t print_gid_type(const struct ib_gid_attr *gid_attr, char *buf) |
|
{ |
|
return sysfs_emit(buf, "%s\n", |
|
ib_cache_gid_type_str(gid_attr->gid_type)); |
|
} |
|
|
|
static ssize_t _show_port_gid_attr( |
|
struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, |
|
char *buf, |
|
ssize_t (*print)(const struct ib_gid_attr *gid_attr, char *buf)) |
|
{ |
|
struct port_table_attribute *tab_attr = |
|
container_of(attr, struct port_table_attribute, attr); |
|
const struct ib_gid_attr *gid_attr; |
|
ssize_t ret; |
|
|
|
gid_attr = rdma_get_gid_attr(ibdev, port_num, tab_attr->index); |
|
if (IS_ERR(gid_attr)) |
|
/* -EINVAL is returned for user space compatibility reasons. */ |
|
return -EINVAL; |
|
|
|
ret = print(gid_attr, buf); |
|
rdma_put_gid_attr(gid_attr); |
|
return ret; |
|
} |
|
|
|
static ssize_t show_port_gid(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, char *buf) |
|
{ |
|
struct port_table_attribute *tab_attr = |
|
container_of(attr, struct port_table_attribute, attr); |
|
const struct ib_gid_attr *gid_attr; |
|
int len; |
|
|
|
gid_attr = rdma_get_gid_attr(ibdev, port_num, tab_attr->index); |
|
if (IS_ERR(gid_attr)) { |
|
const union ib_gid zgid = {}; |
|
|
|
/* If reading GID fails, it is likely due to GID entry being |
|
* empty (invalid) or reserved GID in the table. User space |
|
* expects to read GID table entries as long as it given index |
|
* is within GID table size. Administrative/debugging tool |
|
* fails to query rest of the GID entries if it hits error |
|
* while querying a GID of the given index. To avoid user |
|
* space throwing such error on fail to read gid, return zero |
|
* GID as before. This maintains backward compatibility. |
|
*/ |
|
return sysfs_emit(buf, "%pI6\n", zgid.raw); |
|
} |
|
|
|
len = sysfs_emit(buf, "%pI6\n", gid_attr->gid.raw); |
|
rdma_put_gid_attr(gid_attr); |
|
return len; |
|
} |
|
|
|
static ssize_t show_port_gid_attr_ndev(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, |
|
char *buf) |
|
{ |
|
return _show_port_gid_attr(ibdev, port_num, attr, buf, print_ndev); |
|
} |
|
|
|
static ssize_t show_port_gid_attr_gid_type(struct ib_device *ibdev, |
|
u32 port_num, |
|
struct ib_port_attribute *attr, |
|
char *buf) |
|
{ |
|
return _show_port_gid_attr(ibdev, port_num, attr, buf, print_gid_type); |
|
} |
|
|
|
static ssize_t show_port_pkey(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *attr, char *buf) |
|
{ |
|
struct port_table_attribute *tab_attr = |
|
container_of(attr, struct port_table_attribute, attr); |
|
u16 pkey; |
|
int ret; |
|
|
|
ret = ib_query_pkey(ibdev, port_num, tab_attr->index, &pkey); |
|
if (ret) |
|
return ret; |
|
|
|
return sysfs_emit(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), \ |
|
.attr_id = IB_PMA_PORT_COUNTERS, \ |
|
} |
|
|
|
#define PORT_PMA_ATTR_EXT(_name, _width, _offset) \ |
|
struct port_table_attribute port_pma_attr_ext_##_name = { \ |
|
.attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ |
|
.index = (_offset) | ((_width) << 16), \ |
|
.attr_id = IB_PMA_PORT_COUNTERS_EXT, \ |
|
} |
|
|
|
/* |
|
* Get a Perfmgmt MAD block of data. |
|
* Returns error code or the number of bytes retrieved. |
|
*/ |
|
static int get_perf_mad(struct ib_device *dev, int port_num, __be16 attr, |
|
void *data, int offset, size_t size) |
|
{ |
|
struct ib_mad *in_mad; |
|
struct ib_mad *out_mad; |
|
size_t mad_size = sizeof(*out_mad); |
|
u16 out_mad_pkey_index = 0; |
|
ssize_t ret; |
|
|
|
if (!dev->ops.process_mad) |
|
return -ENOSYS; |
|
|
|
in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); |
|
out_mad = kzalloc(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 = attr; |
|
|
|
if (attr != IB_PMA_CLASS_PORT_INFO) |
|
in_mad->data[41] = port_num; /* PortSelect field */ |
|
|
|
if ((dev->ops.process_mad(dev, IB_MAD_IGNORE_MKEY, port_num, NULL, NULL, |
|
in_mad, out_mad, &mad_size, |
|
&out_mad_pkey_index) & |
|
(IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != |
|
(IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
memcpy(data, out_mad->data + offset, size); |
|
ret = size; |
|
out: |
|
kfree(in_mad); |
|
kfree(out_mad); |
|
return ret; |
|
} |
|
|
|
static ssize_t show_pma_counter(struct ib_device *ibdev, u32 port_num, |
|
struct ib_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; |
|
int ret; |
|
u8 data[8]; |
|
int len; |
|
|
|
ret = get_perf_mad(ibdev, port_num, tab_attr->attr_id, &data, |
|
40 + offset / 8, sizeof(data)); |
|
if (ret < 0) |
|
return ret; |
|
|
|
switch (width) { |
|
case 4: |
|
len = sysfs_emit(buf, "%d\n", |
|
(*data >> (4 - (offset % 8))) & 0xf); |
|
break; |
|
case 8: |
|
len = sysfs_emit(buf, "%u\n", *data); |
|
break; |
|
case 16: |
|
len = sysfs_emit(buf, "%u\n", be16_to_cpup((__be16 *)data)); |
|
break; |
|
case 32: |
|
len = sysfs_emit(buf, "%u\n", be32_to_cpup((__be32 *)data)); |
|
break; |
|
case 64: |
|
len = sysfs_emit(buf, "%llu\n", be64_to_cpup((__be64 *)data)); |
|
break; |
|
default: |
|
len = 0; |
|
break; |
|
} |
|
|
|
return len; |
|
} |
|
|
|
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 const struct attribute_group pma_group = { |
|
.name = "counters", |
|
.attrs = pma_attrs |
|
}; |
|
|
|
static const struct attribute_group pma_group_ext = { |
|
.name = "counters", |
|
.attrs = pma_attrs_ext |
|
}; |
|
|
|
static const struct attribute_group pma_group_noietf = { |
|
.name = "counters", |
|
.attrs = pma_attrs_noietf |
|
}; |
|
|
|
static void ib_port_release(struct kobject *kobj) |
|
{ |
|
struct ib_port *port = container_of(kobj, struct ib_port, kobj); |
|
int i; |
|
|
|
for (i = 0; i != ARRAY_SIZE(port->groups); i++) |
|
kfree(port->groups[i].attrs); |
|
if (port->hw_stats_data) |
|
kfree(port->hw_stats_data->stats); |
|
kfree(port->hw_stats_data); |
|
kfree(port); |
|
} |
|
|
|
static void ib_port_gid_attr_release(struct kobject *kobj) |
|
{ |
|
struct gid_attr_group *gid_attr_group = |
|
container_of(kobj, struct gid_attr_group, kobj); |
|
int i; |
|
|
|
for (i = 0; i != ARRAY_SIZE(gid_attr_group->groups); i++) |
|
kfree(gid_attr_group->groups[i].attrs); |
|
kfree(gid_attr_group); |
|
} |
|
|
|
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 |
|
}; |
|
|
|
/* |
|
* Figure out which counter table to use depending on |
|
* the device capabilities. |
|
*/ |
|
static const 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, |
|
u32 port_num, int index) |
|
{ |
|
int ret; |
|
|
|
if (time_is_after_eq_jiffies(stats->timestamp + stats->lifespan)) |
|
return 0; |
|
ret = dev->ops.get_hw_stats(dev, stats, port_num, index); |
|
if (ret < 0) |
|
return ret; |
|
if (ret == stats->num_counters) |
|
stats->timestamp = jiffies; |
|
|
|
return 0; |
|
} |
|
|
|
static int print_hw_stat(struct ib_device *dev, int port_num, |
|
struct rdma_hw_stats *stats, int index, char *buf) |
|
{ |
|
u64 v = rdma_counter_get_hwstat_value(dev, port_num, index); |
|
|
|
return sysfs_emit(buf, "%llu\n", stats->value[index] + v); |
|
} |
|
|
|
static ssize_t show_hw_stats(struct ib_device *ibdev, |
|
struct rdma_hw_stats *stats, unsigned int index, |
|
unsigned int port_num, char *buf) |
|
{ |
|
int ret; |
|
|
|
mutex_lock(&stats->lock); |
|
ret = update_hw_stats(ibdev, stats, port_num, index); |
|
if (ret) |
|
goto unlock; |
|
ret = print_hw_stat(ibdev, port_num, stats, index, buf); |
|
unlock: |
|
mutex_unlock(&stats->lock); |
|
|
|
return ret; |
|
} |
|
|
|
static ssize_t show_stats_lifespan(struct ib_device *ibdev, |
|
struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, |
|
char *buf) |
|
{ |
|
int msecs; |
|
|
|
mutex_lock(&stats->lock); |
|
msecs = jiffies_to_msecs(stats->lifespan); |
|
mutex_unlock(&stats->lock); |
|
|
|
return sysfs_emit(buf, "%d\n", msecs); |
|
} |
|
|
|
static ssize_t set_stats_lifespan(struct ib_device *ibdev, |
|
struct rdma_hw_stats *stats, |
|
unsigned int index, unsigned int port_num, |
|
const char *buf, size_t count) |
|
{ |
|
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); |
|
|
|
mutex_lock(&stats->lock); |
|
stats->lifespan = jiffies; |
|
mutex_unlock(&stats->lock); |
|
|
|
return count; |
|
} |
|
|
|
static struct hw_stats_device_data * |
|
alloc_hw_stats_device(struct ib_device *ibdev) |
|
{ |
|
struct hw_stats_device_data *data; |
|
struct rdma_hw_stats *stats; |
|
|
|
if (!ibdev->ops.alloc_hw_device_stats) |
|
return ERR_PTR(-EOPNOTSUPP); |
|
stats = ibdev->ops.alloc_hw_device_stats(ibdev); |
|
if (!stats) |
|
return ERR_PTR(-ENOMEM); |
|
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 |
|
*/ |
|
data = kzalloc(struct_size(data, attrs, stats->num_counters + 1), |
|
GFP_KERNEL); |
|
if (!data) |
|
goto err_free_stats; |
|
data->group.attrs = kcalloc(stats->num_counters + 2, |
|
sizeof(*data->group.attrs), GFP_KERNEL); |
|
if (!data->group.attrs) |
|
goto err_free_data; |
|
|
|
mutex_init(&stats->lock); |
|
data->group.name = "hw_counters"; |
|
data->stats = stats; |
|
return data; |
|
|
|
err_free_data: |
|
kfree(data); |
|
err_free_stats: |
|
kfree(stats); |
|
return ERR_PTR(-ENOMEM); |
|
} |
|
|
|
void ib_device_release_hw_stats(struct hw_stats_device_data *data) |
|
{ |
|
kfree(data->group.attrs); |
|
kfree(data->stats); |
|
kfree(data); |
|
} |
|
|
|
int ib_setup_device_attrs(struct ib_device *ibdev) |
|
{ |
|
struct hw_stats_device_attribute *attr; |
|
struct hw_stats_device_data *data; |
|
int i, ret; |
|
|
|
data = alloc_hw_stats_device(ibdev); |
|
if (IS_ERR(data)) { |
|
if (PTR_ERR(data) == -EOPNOTSUPP) |
|
return 0; |
|
return PTR_ERR(data); |
|
} |
|
ibdev->hw_stats_data = data; |
|
|
|
ret = ibdev->ops.get_hw_stats(ibdev, data->stats, 0, |
|
data->stats->num_counters); |
|
if (ret != data->stats->num_counters) { |
|
if (WARN_ON(ret >= 0)) |
|
return -EINVAL; |
|
return ret; |
|
} |
|
|
|
data->stats->timestamp = jiffies; |
|
|
|
for (i = 0; i < data->stats->num_counters; i++) { |
|
attr = &data->attrs[i]; |
|
sysfs_attr_init(&attr->attr.attr); |
|
attr->attr.attr.name = data->stats->names[i]; |
|
attr->attr.attr.mode = 0444; |
|
attr->attr.show = hw_stat_device_show; |
|
attr->show = show_hw_stats; |
|
data->group.attrs[i] = &attr->attr.attr; |
|
} |
|
|
|
attr = &data->attrs[i]; |
|
sysfs_attr_init(&attr->attr.attr); |
|
attr->attr.attr.name = "lifespan"; |
|
attr->attr.attr.mode = 0644; |
|
attr->attr.show = hw_stat_device_show; |
|
attr->show = show_stats_lifespan; |
|
attr->attr.store = hw_stat_device_store; |
|
attr->store = set_stats_lifespan; |
|
data->group.attrs[i] = &attr->attr.attr; |
|
for (i = 0; i != ARRAY_SIZE(ibdev->groups); i++) |
|
if (!ibdev->groups[i]) { |
|
ibdev->groups[i] = &data->group; |
|
return 0; |
|
} |
|
WARN(true, "struct ib_device->groups is too small"); |
|
return -EINVAL; |
|
} |
|
|
|
static struct hw_stats_port_data * |
|
alloc_hw_stats_port(struct ib_port *port, struct attribute_group *group) |
|
{ |
|
struct ib_device *ibdev = port->ibdev; |
|
struct hw_stats_port_data *data; |
|
struct rdma_hw_stats *stats; |
|
|
|
if (!ibdev->ops.alloc_hw_port_stats) |
|
return ERR_PTR(-EOPNOTSUPP); |
|
stats = ibdev->ops.alloc_hw_port_stats(port->ibdev, port->port_num); |
|
if (!stats) |
|
return ERR_PTR(-ENOMEM); |
|
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 |
|
*/ |
|
data = kzalloc(struct_size(data, attrs, stats->num_counters + 1), |
|
GFP_KERNEL); |
|
if (!data) |
|
goto err_free_stats; |
|
group->attrs = kcalloc(stats->num_counters + 2, |
|
sizeof(*group->attrs), GFP_KERNEL); |
|
if (!group->attrs) |
|
goto err_free_data; |
|
|
|
mutex_init(&stats->lock); |
|
group->name = "hw_counters"; |
|
data->stats = stats; |
|
return data; |
|
|
|
err_free_data: |
|
kfree(data); |
|
err_free_stats: |
|
kfree(stats); |
|
return ERR_PTR(-ENOMEM); |
|
} |
|
|
|
static int setup_hw_port_stats(struct ib_port *port, |
|
struct attribute_group *group) |
|
{ |
|
struct hw_stats_port_attribute *attr; |
|
struct hw_stats_port_data *data; |
|
int i, ret; |
|
|
|
data = alloc_hw_stats_port(port, group); |
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
ret = port->ibdev->ops.get_hw_stats(port->ibdev, data->stats, |
|
port->port_num, |
|
data->stats->num_counters); |
|
if (ret != data->stats->num_counters) { |
|
if (WARN_ON(ret >= 0)) |
|
return -EINVAL; |
|
return ret; |
|
} |
|
|
|
data->stats->timestamp = jiffies; |
|
|
|
for (i = 0; i < data->stats->num_counters; i++) { |
|
attr = &data->attrs[i]; |
|
sysfs_attr_init(&attr->attr.attr); |
|
attr->attr.attr.name = data->stats->names[i]; |
|
attr->attr.attr.mode = 0444; |
|
attr->attr.show = hw_stat_port_show; |
|
attr->show = show_hw_stats; |
|
group->attrs[i] = &attr->attr.attr; |
|
} |
|
|
|
attr = &data->attrs[i]; |
|
sysfs_attr_init(&attr->attr.attr); |
|
attr->attr.attr.name = "lifespan"; |
|
attr->attr.attr.mode = 0644; |
|
attr->attr.show = hw_stat_port_show; |
|
attr->show = show_stats_lifespan; |
|
attr->attr.store = hw_stat_port_store; |
|
attr->store = set_stats_lifespan; |
|
group->attrs[i] = &attr->attr.attr; |
|
|
|
port->hw_stats_data = data; |
|
return 0; |
|
} |
|
|
|
struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev, |
|
u32 port_num) |
|
{ |
|
if (!ibdev->port_data || !rdma_is_port_valid(ibdev, port_num) || |
|
!ibdev->port_data[port_num].sysfs->hw_stats_data) |
|
return NULL; |
|
return ibdev->port_data[port_num].sysfs->hw_stats_data->stats; |
|
} |
|
|
|
static int |
|
alloc_port_table_group(const char *name, struct attribute_group *group, |
|
struct port_table_attribute *attrs, size_t num, |
|
ssize_t (*show)(struct ib_device *ibdev, u32 port_num, |
|
struct ib_port_attribute *, char *buf)) |
|
{ |
|
struct attribute **attr_list; |
|
int i; |
|
|
|
attr_list = kcalloc(num + 1, sizeof(*attr_list), GFP_KERNEL); |
|
if (!attr_list) |
|
return -ENOMEM; |
|
|
|
for (i = 0; i < num; i++) { |
|
struct port_table_attribute *element = &attrs[i]; |
|
|
|
if (snprintf(element->name, sizeof(element->name), "%d", i) >= |
|
sizeof(element->name)) |
|
goto err; |
|
|
|
sysfs_attr_init(&element->attr.attr); |
|
element->attr.attr.name = element->name; |
|
element->attr.attr.mode = 0444; |
|
element->attr.show = show; |
|
element->index = i; |
|
|
|
attr_list[i] = &element->attr.attr; |
|
} |
|
group->name = name; |
|
group->attrs = attr_list; |
|
return 0; |
|
err: |
|
kfree(attr_list); |
|
return -EINVAL; |
|
} |
|
|
|
/* |
|
* Create the sysfs: |
|
* ibp0s9/ports/XX/gid_attrs/{ndevs,types}/YYY |
|
* YYY is the gid table index in decimal |
|
*/ |
|
static int setup_gid_attrs(struct ib_port *port, |
|
const struct ib_port_attr *attr) |
|
{ |
|
struct gid_attr_group *gid_attr_group; |
|
int ret; |
|
|
|
gid_attr_group = kzalloc(struct_size(gid_attr_group, attrs_list, |
|
attr->gid_tbl_len * 2), |
|
GFP_KERNEL); |
|
if (!gid_attr_group) |
|
return -ENOMEM; |
|
gid_attr_group->port = port; |
|
kobject_init(&gid_attr_group->kobj, &gid_attr_type); |
|
|
|
ret = alloc_port_table_group("ndevs", &gid_attr_group->groups[0], |
|
gid_attr_group->attrs_list, |
|
attr->gid_tbl_len, |
|
show_port_gid_attr_ndev); |
|
if (ret) |
|
goto err_put; |
|
gid_attr_group->groups_list[0] = &gid_attr_group->groups[0]; |
|
|
|
ret = alloc_port_table_group( |
|
"types", &gid_attr_group->groups[1], |
|
gid_attr_group->attrs_list + attr->gid_tbl_len, |
|
attr->gid_tbl_len, show_port_gid_attr_gid_type); |
|
if (ret) |
|
goto err_put; |
|
gid_attr_group->groups_list[1] = &gid_attr_group->groups[1]; |
|
|
|
ret = kobject_add(&gid_attr_group->kobj, &port->kobj, "gid_attrs"); |
|
if (ret) |
|
goto err_put; |
|
ret = sysfs_create_groups(&gid_attr_group->kobj, |
|
gid_attr_group->groups_list); |
|
if (ret) |
|
goto err_del; |
|
port->gid_attr_group = gid_attr_group; |
|
return 0; |
|
|
|
err_del: |
|
kobject_del(&gid_attr_group->kobj); |
|
err_put: |
|
kobject_put(&gid_attr_group->kobj); |
|
return ret; |
|
} |
|
|
|
static void destroy_gid_attrs(struct ib_port *port) |
|
{ |
|
struct gid_attr_group *gid_attr_group = port->gid_attr_group; |
|
|
|
if (!gid_attr_group) |
|
return; |
|
sysfs_remove_groups(&gid_attr_group->kobj, gid_attr_group->groups_list); |
|
kobject_del(&gid_attr_group->kobj); |
|
kobject_put(&gid_attr_group->kobj); |
|
} |
|
|
|
/* |
|
* Create the sysfs: |
|
* ibp0s9/ports/XX/{gids,pkeys,counters}/YYY |
|
*/ |
|
static struct ib_port *setup_port(struct ib_core_device *coredev, int port_num, |
|
const struct ib_port_attr *attr) |
|
{ |
|
struct ib_device *device = rdma_device_to_ibdev(&coredev->dev); |
|
bool is_full_dev = &device->coredev == coredev; |
|
const struct attribute_group **cur_group; |
|
struct ib_port *p; |
|
int ret; |
|
|
|
p = kzalloc(struct_size(p, attrs_list, |
|
attr->gid_tbl_len + attr->pkey_tbl_len), |
|
GFP_KERNEL); |
|
if (!p) |
|
return ERR_PTR(-ENOMEM); |
|
p->ibdev = device; |
|
p->port_num = port_num; |
|
kobject_init(&p->kobj, &port_type); |
|
|
|
cur_group = p->groups_list; |
|
ret = alloc_port_table_group("gids", &p->groups[0], p->attrs_list, |
|
attr->gid_tbl_len, show_port_gid); |
|
if (ret) |
|
goto err_put; |
|
*cur_group++ = &p->groups[0]; |
|
|
|
if (attr->pkey_tbl_len) { |
|
ret = alloc_port_table_group("pkeys", &p->groups[1], |
|
p->attrs_list + attr->gid_tbl_len, |
|
attr->pkey_tbl_len, show_port_pkey); |
|
if (ret) |
|
goto err_put; |
|
*cur_group++ = &p->groups[1]; |
|
} |
|
|
|
/* |
|
* If port == 0, it means hw_counters are per device and not per |
|
* port, so holder should be device. Therefore skip per port |
|
* counter initialization. |
|
*/ |
|
if (port_num && is_full_dev) { |
|
ret = setup_hw_port_stats(p, &p->groups[2]); |
|
if (ret && ret != -EOPNOTSUPP) |
|
goto err_put; |
|
if (!ret) |
|
*cur_group++ = &p->groups[2]; |
|
} |
|
|
|
if (device->ops.process_mad && is_full_dev) |
|
*cur_group++ = get_counter_table(device, port_num); |
|
|
|
ret = kobject_add(&p->kobj, coredev->ports_kobj, "%d", port_num); |
|
if (ret) |
|
goto err_put; |
|
ret = sysfs_create_groups(&p->kobj, p->groups_list); |
|
if (ret) |
|
goto err_del; |
|
if (is_full_dev) { |
|
ret = sysfs_create_groups(&p->kobj, device->ops.port_groups); |
|
if (ret) |
|
goto err_groups; |
|
} |
|
|
|
list_add_tail(&p->kobj.entry, &coredev->port_list); |
|
if (device->port_data && is_full_dev) |
|
device->port_data[port_num].sysfs = p; |
|
|
|
return p; |
|
|
|
err_groups: |
|
sysfs_remove_groups(&p->kobj, p->groups_list); |
|
err_del: |
|
kobject_del(&p->kobj); |
|
err_put: |
|
kobject_put(&p->kobj); |
|
return ERR_PTR(ret); |
|
} |
|
|
|
static void destroy_port(struct ib_core_device *coredev, struct ib_port *port) |
|
{ |
|
bool is_full_dev = &port->ibdev->coredev == coredev; |
|
|
|
if (port->ibdev->port_data && |
|
port->ibdev->port_data[port->port_num].sysfs == port) |
|
port->ibdev->port_data[port->port_num].sysfs = NULL; |
|
list_del(&port->kobj.entry); |
|
if (is_full_dev) |
|
sysfs_remove_groups(&port->kobj, port->ibdev->ops.port_groups); |
|
sysfs_remove_groups(&port->kobj, port->groups_list); |
|
kobject_del(&port->kobj); |
|
kobject_put(&port->kobj); |
|
} |
|
|
|
static const char *node_type_string(int node_type) |
|
{ |
|
switch (node_type) { |
|
case RDMA_NODE_IB_CA: |
|
return "CA"; |
|
case RDMA_NODE_IB_SWITCH: |
|
return "switch"; |
|
case RDMA_NODE_IB_ROUTER: |
|
return "router"; |
|
case RDMA_NODE_RNIC: |
|
return "RNIC"; |
|
case RDMA_NODE_USNIC: |
|
return "usNIC"; |
|
case RDMA_NODE_USNIC_UDP: |
|
return "usNIC UDP"; |
|
case RDMA_NODE_UNSPECIFIED: |
|
return "unspecified"; |
|
} |
|
return "<unknown>"; |
|
} |
|
|
|
static ssize_t node_type_show(struct device *device, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct ib_device *dev = rdma_device_to_ibdev(device); |
|
|
|
return sysfs_emit(buf, "%u: %s\n", dev->node_type, |
|
node_type_string(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 = rdma_device_to_ibdev(device); |
|
__be16 *guid = (__be16 *)&dev->attrs.sys_image_guid; |
|
|
|
return sysfs_emit(buf, "%04x:%04x:%04x:%04x\n", |
|
be16_to_cpu(guid[0]), |
|
be16_to_cpu(guid[1]), |
|
be16_to_cpu(guid[2]), |
|
be16_to_cpu(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 = rdma_device_to_ibdev(device); |
|
__be16 *node_guid = (__be16 *)&dev->node_guid; |
|
|
|
return sysfs_emit(buf, "%04x:%04x:%04x:%04x\n", |
|
be16_to_cpu(node_guid[0]), |
|
be16_to_cpu(node_guid[1]), |
|
be16_to_cpu(node_guid[2]), |
|
be16_to_cpu(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 = rdma_device_to_ibdev(device); |
|
|
|
return sysfs_emit(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 = rdma_device_to_ibdev(device); |
|
struct ib_device_modify desc = {}; |
|
int ret; |
|
|
|
if (!dev->ops.modify_device) |
|
return -EOPNOTSUPP; |
|
|
|
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 = rdma_device_to_ibdev(device); |
|
char version[IB_FW_VERSION_NAME_MAX] = {}; |
|
|
|
ib_get_device_fw_str(dev, version); |
|
|
|
return sysfs_emit(buf, "%s\n", version); |
|
} |
|
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, |
|
}; |
|
|
|
const struct attribute_group ib_dev_attr_group = { |
|
.attrs = ib_dev_attrs, |
|
}; |
|
|
|
void ib_free_port_attrs(struct ib_core_device *coredev) |
|
{ |
|
struct kobject *p, *t; |
|
|
|
list_for_each_entry_safe(p, t, &coredev->port_list, entry) { |
|
struct ib_port *port = container_of(p, struct ib_port, kobj); |
|
|
|
destroy_gid_attrs(port); |
|
destroy_port(coredev, port); |
|
} |
|
|
|
kobject_put(coredev->ports_kobj); |
|
} |
|
|
|
int ib_setup_port_attrs(struct ib_core_device *coredev) |
|
{ |
|
struct ib_device *device = rdma_device_to_ibdev(&coredev->dev); |
|
u32 port_num; |
|
int ret; |
|
|
|
coredev->ports_kobj = kobject_create_and_add("ports", |
|
&coredev->dev.kobj); |
|
if (!coredev->ports_kobj) |
|
return -ENOMEM; |
|
|
|
rdma_for_each_port (device, port_num) { |
|
struct ib_port_attr attr; |
|
struct ib_port *port; |
|
|
|
ret = ib_query_port(device, port_num, &attr); |
|
if (ret) |
|
goto err_put; |
|
|
|
port = setup_port(coredev, port_num, &attr); |
|
if (IS_ERR(port)) { |
|
ret = PTR_ERR(port); |
|
goto err_put; |
|
} |
|
|
|
ret = setup_gid_attrs(port, &attr); |
|
if (ret) |
|
goto err_put; |
|
} |
|
return 0; |
|
|
|
err_put: |
|
ib_free_port_attrs(coredev); |
|
return ret; |
|
} |
|
|
|
/** |
|
* ib_port_register_client_groups - Add an ib_client's attributes to the port |
|
* |
|
* @ibdev: IB device to add counters |
|
* @port_num: valid port number |
|
* @groups: Group list of attributes |
|
* |
|
* Do not use. Only for legacy sysfs compatibility. |
|
*/ |
|
int ib_port_register_client_groups(struct ib_device *ibdev, u32 port_num, |
|
const struct attribute_group **groups) |
|
{ |
|
return sysfs_create_groups(&ibdev->port_data[port_num].sysfs->kobj, |
|
groups); |
|
} |
|
EXPORT_SYMBOL(ib_port_register_client_groups); |
|
|
|
void ib_port_unregister_client_groups(struct ib_device *ibdev, u32 port_num, |
|
const struct attribute_group **groups) |
|
{ |
|
return sysfs_remove_groups(&ibdev->port_data[port_num].sysfs->kobj, |
|
groups); |
|
} |
|
EXPORT_SYMBOL(ib_port_unregister_client_groups);
|
|
|