- 根目录:
- drivers
- infiniband
- hw
- mlx4
- sysfs.c
/*
* Copyright (c) 2012 Mellanox Technologies. 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 "mlx4_ib.h"
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <rdma/ib_mad.h>
/*show_admin_alias_guid returns the administratively assigned value of that GUID.
* Values returned in buf parameter string:
* 0 - requests opensm to assign a value.
* ffffffffffffffff - delete this entry.
* other - value assigned by administrator.
*/
static ssize_t show_admin_alias_guid(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
__be64 sysadmin_ag_val;
sysadmin_ag_val = mlx4_get_admin_guid(mdev->dev,
mlx4_ib_iov_dentry->entry_num,
port->num);
return sprintf(buf, "%llx\n", be64_to_cpu(sysadmin_ag_val));
}
/* store_admin_alias_guid stores the (new) administratively assigned value of that GUID.
* Values in buf parameter string:
* 0 - requests opensm to assign a value.
* 0xffffffffffffffff - delete this entry.
* other - guid value assigned by the administrator.
*/
static ssize_t store_admin_alias_guid(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int record_num;/*0-15*/
int guid_index_in_rec; /*0 - 7*/
struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
u64 sysadmin_ag_val;
unsigned long flags;
record_num = mlx4_ib_iov_dentry->entry_num / 8;
guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8;
if (0 == record_num && 0 == guid_index_in_rec) {
pr_err("GUID 0 block 0 is RO\n");
return count;
}
spin_lock_irqsave(&mdev->sriov.alias_guid.ag_work_lock, flags);
sscanf(buf, "%llx", &sysadmin_ag_val);
*(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1].
all_rec_per_port[record_num].
all_recs[GUID_REC_SIZE * guid_index_in_rec] =
cpu_to_be64(sysadmin_ag_val);
/* Change the state to be pending for update */
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status
= MLX4_GUID_INFO_STATUS_IDLE ;
mlx4_set_admin_guid(mdev->dev, cpu_to_be64(sysadmin_ag_val),
mlx4_ib_iov_dentry->entry_num,
port->num);
/* set the record index */
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes
|= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec);
spin_unlock_irqrestore(&mdev->sriov.alias_guid.ag_work_lock, flags);
mlx4_ib_init_alias_guid_work(mdev, port->num - 1);
return count;
}
static ssize_t show_port_gid(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
union ib_gid gid;
ssize_t ret;
ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num,
mlx4_ib_iov_dentry->entry_num, &gid, 1);
if (ret)
return ret;
ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
be16_to_cpu(((__be16 *) gid.raw)[0]),
be16_to_cpu(((__be16 *) gid.raw)[1]),
be16_to_cpu(((__be16 *) gid.raw)[2]),
be16_to_cpu(((__be16 *) gid.raw)[3]),
be16_to_cpu(((__be16 *) gid.raw)[4]),
be16_to_cpu(((__be16 *) gid.raw)[5]),
be16_to_cpu(((__be16 *) gid.raw)[6]),
be16_to_cpu(((__be16 *) gid.raw)[7]));
return ret;
}
static ssize_t show_phys_port_pkey(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
u16 pkey;
ssize_t ret;
ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num,
mlx4_ib_iov_dentry->entry_num, &pkey, 1);
if (ret)
return ret;
return sprintf(buf, "0x%04x\n", pkey);
}
#define DENTRY_REMOVE(_dentry) \
do { \
sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \
} while (0);
static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry,
char *_name, struct kobject *_kobj,
ssize_t (*show)(struct device *dev,
struct device_attribute *attr,
char *buf),
ssize_t (*store)(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
)
{
int ret = 0;
struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry;
vdentry->ctx = _ctx;
vdentry->dentry.show = show;
vdentry->dentry.store = store;
sysfs_attr_init(&vdentry->dentry.attr);
vdentry->dentry.attr.name = vdentry->name;
vdentry->dentry.attr.mode = 0;
vdentry->kobj = _kobj;
snprintf(vdentry->name, 15, "%s", _name);
if (vdentry->dentry.store)
vdentry->dentry.attr.mode |= S_IWUSR;
if (vdentry->dentry.show)
vdentry->dentry.attr.mode |= S_IRUGO;
ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr);
if (ret) {
pr_err("failed to create %s\n", vdentry->dentry.attr.name);
vdentry->ctx = NULL;
return ret;
}
return ret;
}
int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
struct attribute *attr)
{
struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
int ret;
ret = sysfs_create_file(port->mcgs_parent, attr);
if (ret)
pr_err("failed to create %s\n", attr->name);
return ret;
}
void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
struct attribute *attr)
{
struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
sysfs_remove_file(port->mcgs_parent, attr);
}
static int add_port_entries(struct mlx4_ib_dev *device, int port_num)
{
int i;
char buff[10];
struct mlx4_ib_iov_port *port = NULL;
int ret = 0 ;
struct ib_port_attr attr;
/* get the physical gid and pkey table sizes.*/
ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1);
if (ret)
goto err;
port = &device->iov_ports[port_num - 1];
port->dev = device;
port->num = port_num;
/* Directory structure:
* iov -
* port num -
* admin_guids
* gids (operational)
* mcg_table
*/
port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar),
GFP_KERNEL);
if (!port->dentr_ar) {
ret = -ENOMEM;
goto err;
}
sprintf(buff, "%d", port_num);
port->cur_port = kobject_create_and_add(buff,
kobject_get(device->ports_parent));
if (!port->cur_port) {
ret = -ENOMEM;
goto kobj_create_err;
}
/* admin GUIDs */
port->admin_alias_parent = kobject_create_and_add("admin_guids",
kobject_get(port->cur_port));
if (!port->admin_alias_parent) {
ret = -ENOMEM;
goto err_admin_guids;
}
for (i = 0 ; i < attr.gid_tbl_len; i++) {
sprintf(buff, "%d", i);
port->dentr_ar->dentries[i].entry_num = i;
ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i],
buff, port->admin_alias_parent,
show_admin_alias_guid, store_admin_alias_guid);
if (ret)
goto err_admin_alias_parent;
}
/* gids subdirectory (operational gids) */
port->gids_parent = kobject_create_and_add("gids",
kobject_get(port->cur_port));
if (!port->gids_parent) {
ret = -ENOMEM;
goto err_gids;
}
for (i = 0 ; i < attr.gid_tbl_len; i++) {
sprintf(buff, "%d", i);
port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i;
ret = create_sysfs_entry(port,
&port->dentr_ar->dentries[attr.gid_tbl_len + i],
buff,
port->gids_parent, show_port_gid, NULL);
if (ret)
goto err_gids_parent;
}
/* physical port pkey table */
port->pkeys_parent =
kobject_create_and_add("pkeys", kobject_get(port->cur_port));
if (!port->pkeys_parent) {
ret = -ENOMEM;
goto err_pkeys;
}
for (i = 0 ; i < attr.pkey_tbl_len; i++) {
sprintf(buff, "%d", i);
port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i;
ret = create_sysfs_entry(port,
&port->dentr_ar->dentries[2 * attr.gid_tbl_len + i],
buff, port->pkeys_parent,
show_phys_port_pkey, NULL);
if (ret)
goto err_pkeys_parent;
}
/* MCGs table */
port->mcgs_parent =
kobject_create_and_add("mcgs", kobject_get(port->cur_port));
if (!port->mcgs_parent) {
ret = -ENOMEM;
goto err_mcgs;
}
return 0;
err_mcgs:
kobject_put(port->cur_port);
err_pkeys_parent:
kobject_put(port->pkeys_parent);
err_pkeys:
kobject_put(port->cur_port);
err_gids_parent:
kobject_put(port->gids_parent);
err_gids:
kobject_put(port->cur_port);
err_admin_alias_parent:
kobject_put(port->admin_alias_parent);
err_admin_guids:
kobject_put(port->cur_port);
kobject_put(port->cur_port); /* once more for create_and_add buff */
kobj_create_err:
kobject_put(device->ports_parent);
kfree(port->dentr_ar);
err:
pr_err("add_port_entries FAILED: for port:%d, error: %d\n",
port_num, ret);
return ret;
}
static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max)
{
char base_name[9];
/* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */
strlcpy(name, pci_name(dev->dev->persist->pdev), max);
strncpy(base_name, name, 8); /*till xxxx:yy:*/
base_name[8] = '\0';
/* with no ARI only 3 last bits are used so when the fn is higher than 8
* need to add it to the dev num, so count in the last number will be
* modulo 8 */
sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8));
}
struct mlx4_port {
struct kobject kobj;
struct mlx4_ib_dev *dev;
struct attribute_group pkey_group;
struct attribute_group gid_group;
struct device_attribute enable_smi_admin;
struct device_attribute smi_enabled;
int slave;
u8 port_num;
};
static void mlx4_port_release(struct kobject *kobj)
{
struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
struct attribute *a;
int i;
for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
kfree(a);
kfree(p->pkey_group.attrs);
for (i = 0; (a = p->gid_group.attrs[i]); ++i)
kfree(a);
kfree(p->gid_group.attrs);
kfree(p);
}
struct port_attribute {
struct attribute attr;
ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf);
ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
const char *buf, size_t count);
};
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 mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
if (!port_attr->show)
return -EIO;
return port_attr->show(p, port_attr, buf);
}
static ssize_t port_attr_store(struct kobject *kobj,
struct attribute *attr,
const char *buf, size_t size)
{
struct port_attribute *port_attr =
container_of(attr, struct port_attribute, attr);
struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
if (!port_attr->store)
return -EIO;
return port_attr->store(p, port_attr, buf, size);
}
static const struct sysfs_ops port_sysfs_ops = {
.show = port_attr_show,
.store = port_attr_store,
};
static struct kobj_type port_type = {
.release = mlx4_port_release,
.sysfs_ops = &port_sysfs_ops,
};
struct port_table_attribute {
struct port_attribute attr;
char name[8];
int index;
};
static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
char *buf)
{
struct port_table_attribute *tab_attr =
container_of(attr, struct port_table_attribute, attr);
ssize_t ret = -ENODEV;
if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >=
(p->dev->dev->caps.pkey_table_len[p->port_num]))
ret = sprintf(buf, "none\n");
else
ret = sprintf(buf, "%d\n",
p->dev->pkeys.virt2phys_pkey[p->slave]
[p->port_num - 1][tab_attr->index]);
return ret;
}
static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
const char *buf, size_t count)
{
struct port_table_attribute *tab_attr =
container_of(attr, struct port_table_attribute, attr);
int idx;
int err;
/* do not allow remapping Dom0 virtual pkey table */
if (p->slave == mlx4_master_func_num(p->dev->dev))
return -EINVAL;
if (!strncasecmp(buf, "no", 2))
idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1;
else if (sscanf(buf, "%i", &idx) != 1 ||
idx >= p->dev->dev->caps.pkey_table_len[p->port_num] ||
idx < 0)
return -EINVAL;
p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1]
[tab_attr->index] = idx;
mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num,
tab_attr->index, idx);
err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num);
if (err) {
pr_err("mlx4_gen_pkey_eqe failed for slave %d,"
" port %d, index %d\n", p->slave, p->port_num, idx);
return err;
}
return count;
}
static ssize_t show_port_gid_idx(struct mlx4_port *p,
struct port_attribute *attr, char *buf)
{
return sprintf(buf, "%d\n", p->slave);
}
static struct attribute **
alloc_group_attrs(ssize_t (*show)(struct mlx4_port *,
struct port_attribute *, char *buf),
ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
const char *buf, size_t count),
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;
}
sysfs_attr_init(&element->attr.attr);
element->attr.attr.name = element->name;
if (store) {
element->attr.attr.mode = S_IWUSR | S_IRUGO;
element->attr.store = store;
} else
element->attr.attr.mode = S_IRUGO;
element->attr.show = show;
element->index = i;
tab_attr[i] = &element->attr.attr;
}
return tab_attr;
err:
while (--i >= 0)
kfree(tab_attr[i]);
kfree(tab_attr);
return NULL;
}
static ssize_t sysfs_show_smi_enabled(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct mlx4_port *p =
container_of(attr, struct mlx4_port, smi_enabled);
ssize_t len = 0;
if (mlx4_vf_smi_enabled(p->dev->dev, p->slave, p->port_num))
len = sprintf(buf, "%d\n", 1);
else
len = sprintf(buf, "%d\n", 0);
return len;
}
static ssize_t sysfs_show_enable_smi_admin(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct mlx4_port *p =
container_of(attr, struct mlx4_port, enable_smi_admin);
ssize_t len = 0;
if (mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, p->port_num))
len = sprintf(buf, "%d\n", 1);
else
len = sprintf(buf, "%d\n", 0);
return len;
}
static ssize_t sysfs_store_enable_smi_admin(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct mlx4_port *p =
container_of(attr, struct mlx4_port, enable_smi_admin);
int enable;
if (sscanf(buf, "%i", &enable) != 1 ||
enable < 0 || enable > 1)
return -EINVAL;
if (mlx4_vf_set_enable_smi_admin(p->dev->dev, p->slave, p->port_num, enable))
return -EINVAL;
return count;
}
static int add_vf_smi_entries(struct mlx4_port *p)
{
int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) ==
IB_LINK_LAYER_ETHERNET;
int ret;
/* do not display entries if eth transport, or if master */
if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev))
return 0;
sysfs_attr_init(&p->smi_enabled.attr);
p->smi_enabled.show = sysfs_show_smi_enabled;
p->smi_enabled.store = NULL;
p->smi_enabled.attr.name = "smi_enabled";
p->smi_enabled.attr.mode = 0444;
ret = sysfs_create_file(&p->kobj, &p->smi_enabled.attr);
if (ret) {
pr_err("failed to create smi_enabled\n");
return ret;
}
sysfs_attr_init(&p->enable_smi_admin.attr);
p->enable_smi_admin.show = sysfs_show_enable_smi_admin;
p->enable_smi_admin.store = sysfs_store_enable_smi_admin;
p->enable_smi_admin.attr.name = "enable_smi_admin";
p->enable_smi_admin.attr.mode = 0644;
ret = sysfs_create_file(&p->kobj, &p->enable_smi_admin.attr);
if (ret) {
pr_err("failed to create enable_smi_admin\n");
sysfs_remove_file(&p->kobj, &p->smi_enabled.attr);
return ret;
}
return 0;
}
static void remove_vf_smi_entries(struct mlx4_port *p)
{
int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) ==
IB_LINK_LAYER_ETHERNET;
if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev))
return;
sysfs_remove_file(&p->kobj, &p->smi_enabled.attr);
sysfs_remove_file(&p->kobj, &p->enable_smi_admin.attr);
}
static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave)
{
struct mlx4_port *p;
int i;
int ret;
p = kzalloc(sizeof *p, GFP_KERNEL);
if (!p)
return -ENOMEM;
p->dev = dev;
p->port_num = port_num;
p->slave = slave;
ret = kobject_init_and_add(&p->kobj, &port_type,
kobject_get(dev->dev_ports_parent[slave]),
"%d", port_num);
if (ret)
goto err_alloc;
p->pkey_group.name = "pkey_idx";
p->pkey_group.attrs =
alloc_group_attrs(show_port_pkey, store_port_pkey,
dev->dev->caps.pkey_table_len[port_num]);
if (!p->pkey_group.attrs) {
ret = -ENOMEM;
goto err_alloc;
}
ret = sysfs_create_group(&p->kobj, &p->pkey_group);
if (ret)
goto err_free_pkey;
p->gid_group.name = "gid_idx";
p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1);
if (!p->gid_group.attrs) {
ret = -ENOMEM;
goto err_free_pkey;
}
ret = sysfs_create_group(&p->kobj, &p->gid_group);
if (ret)
goto err_free_gid;
ret = add_vf_smi_entries(p);
if (ret)
goto err_free_gid;
list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]);
return 0;
err_free_gid:
kfree(p->gid_group.attrs[0]);
kfree(p->gid_group.attrs);
err_free_pkey:
for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i)
kfree(p->pkey_group.attrs[i]);
kfree(p->pkey_group.attrs);
err_alloc:
kobject_put(dev->dev_ports_parent[slave]);
kfree(p);
return ret;
}
static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave)
{
char name[32];
int err;
int port;
struct kobject *p, *t;
struct mlx4_port *mport;
struct mlx4_active_ports actv_ports;
get_name(dev, name, slave, sizeof name);
dev->pkeys.device_parent[slave] =
kobject_create_and_add(name, kobject_get(dev->iov_parent));
if (!dev->pkeys.device_parent[slave]) {
err = -ENOMEM;
goto fail_dev;
}
INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]);
dev->dev_ports_parent[slave] =
kobject_create_and_add("ports",
kobject_get(dev->pkeys.device_parent[slave]));
if (!dev->dev_ports_parent[slave]) {
err = -ENOMEM;
goto err_ports;
}
actv_ports = mlx4_get_active_ports(dev->dev, slave);
for (port = 1; port <= dev->dev->caps.num_ports; ++port) {
if (!test_bit(port - 1, actv_ports.ports))
continue;
err = add_port(dev, port, slave);
if (err)
goto err_add;
}
return 0;
err_add:
list_for_each_entry_safe(p, t,
&dev->pkeys.pkey_port_list[slave],
entry) {
list_del(&p->entry);
mport = container_of(p, struct mlx4_port, kobj);
sysfs_remove_group(p, &mport->pkey_group);
sysfs_remove_group(p, &mport->gid_group);
remove_vf_smi_entries(mport);
kobject_put(p);
}
kobject_put(dev->dev_ports_parent[slave]);
err_ports:
kobject_put(dev->pkeys.device_parent[slave]);
/* extra put for the device_parent create_and_add */
kobject_put(dev->pkeys.device_parent[slave]);
fail_dev:
kobject_put(dev->iov_parent);
return err;
}
static int register_pkey_tree(struct mlx4_ib_dev *device)
{
int i;
if (!mlx4_is_master(device->dev))
return 0;
for (i = 0; i <= device->dev->persist->num_vfs; ++i)
register_one_pkey_tree(device, i);
return 0;
}
static void unregister_pkey_tree(struct mlx4_ib_dev *device)
{
int slave;
struct kobject *p, *t;
struct mlx4_port *port;
if (!mlx4_is_master(device->dev))
return;
for (slave = device->dev->persist->num_vfs; slave >= 0; --slave) {
list_for_each_entry_safe(p, t,
&device->pkeys.pkey_port_list[slave],
entry) {
list_del(&p->entry);
port = container_of(p, struct mlx4_port, kobj);
sysfs_remove_group(p, &port->pkey_group);
sysfs_remove_group(p, &port->gid_group);
remove_vf_smi_entries(port);
kobject_put(p);
kobject_put(device->dev_ports_parent[slave]);
}
kobject_put(device->dev_ports_parent[slave]);
kobject_put(device->pkeys.device_parent[slave]);
kobject_put(device->pkeys.device_parent[slave]);
kobject_put(device->iov_parent);
}
}
int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev)
{
int i;
int ret = 0;
if (!mlx4_is_master(dev->dev))
return 0;
dev->iov_parent =
kobject_create_and_add("iov",
kobject_get(dev->ib_dev.ports_parent->parent));
if (!dev->iov_parent) {
ret = -ENOMEM;
goto err;
}
dev->ports_parent =
kobject_create_and_add("ports",
kobject_get(dev->iov_parent));
if (!dev->ports_parent) {
ret = -ENOMEM;
goto err_ports;
}
for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) {
ret = add_port_entries(dev, i);
if (ret)
goto err_add_entries;
}
ret = register_pkey_tree(dev);
if (ret)
goto err_add_entries;
return 0;
err_add_entries:
kobject_put(dev->ports_parent);
err_ports:
kobject_put(dev->iov_parent);
err:
kobject_put(dev->ib_dev.ports_parent->parent);
pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret);
return ret;
}
static void unregister_alias_guid_tree(struct mlx4_ib_dev *device)
{
struct mlx4_ib_iov_port *p;
int i;
if (!mlx4_is_master(device->dev))
return;
for (i = 0; i < device->dev->caps.num_ports; i++) {
p = &device->iov_ports[i];
kobject_put(p->admin_alias_parent);
kobject_put(p->gids_parent);
kobject_put(p->pkeys_parent);
kobject_put(p->mcgs_parent);
kobject_put(p->cur_port);
kobject_put(p->cur_port);
kobject_put(p->cur_port);
kobject_put(p->cur_port);
kobject_put(p->cur_port);
kobject_put(p->dev->ports_parent);
kfree(p->dentr_ar);
}
}
void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device)
{
unregister_alias_guid_tree(device);
unregister_pkey_tree(device);
kobject_put(device->ports_parent);
kobject_put(device->iov_parent);
kobject_put(device->iov_parent);
kobject_put(device->ib_dev.ports_parent->parent);
}