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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
*/
#include <net/genetlink.h>
#include "devl_internal.h"
void *
devlink_health_reporter_priv(struct devlink_health_reporter *reporter)
{
return reporter->priv;
}
EXPORT_SYMBOL_GPL(devlink_health_reporter_priv);
static struct devlink_health_reporter *
__devlink_health_reporter_find_by_name(struct list_head *reporter_list,
const char *reporter_name)
{
struct devlink_health_reporter *reporter;
list_for_each_entry(reporter, reporter_list, list)
if (!strcmp(reporter->ops->name, reporter_name))
return reporter;
return NULL;
}
struct devlink_health_reporter *
devlink_health_reporter_find_by_name(struct devlink *devlink,
const char *reporter_name)
{
return __devlink_health_reporter_find_by_name(&devlink->reporter_list,
reporter_name);
}
struct devlink_health_reporter *
devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port,
const char *reporter_name)
{
return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list,
reporter_name);
}
static struct devlink_health_reporter *
__devlink_health_reporter_create(struct devlink *devlink,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv)
{
struct devlink_health_reporter *reporter;
if (WARN_ON(graceful_period && !ops->recover))
return ERR_PTR(-EINVAL);
reporter = kzalloc(sizeof(*reporter), GFP_KERNEL);
if (!reporter)
return ERR_PTR(-ENOMEM);
reporter->priv = priv;
reporter->ops = ops;
reporter->devlink = devlink;
reporter->graceful_period = graceful_period;
reporter->auto_recover = !!ops->recover;
reporter->auto_dump = !!ops->dump;
mutex_init(&reporter->dump_lock);
return reporter;
}
/**
* devl_port_health_reporter_create() - create devlink health reporter for
* specified port instance
*
* @port: devlink_port to which health reports will relate
* @ops: devlink health reporter ops
* @graceful_period: min time (in msec) between recovery attempts
* @priv: driver priv pointer
*/
struct devlink_health_reporter *
devl_port_health_reporter_create(struct devlink_port *port,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv)
{
struct devlink_health_reporter *reporter;
devl_assert_locked(port->devlink);
if (__devlink_health_reporter_find_by_name(&port->reporter_list,
ops->name))
return ERR_PTR(-EEXIST);
reporter = __devlink_health_reporter_create(port->devlink, ops,
graceful_period, priv);
if (IS_ERR(reporter))
return reporter;
reporter->devlink_port = port;
list_add_tail(&reporter->list, &port->reporter_list);
return reporter;
}
EXPORT_SYMBOL_GPL(devl_port_health_reporter_create);
struct devlink_health_reporter *
devlink_port_health_reporter_create(struct devlink_port *port,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv)
{
struct devlink_health_reporter *reporter;
struct devlink *devlink = port->devlink;
devl_lock(devlink);
reporter = devl_port_health_reporter_create(port, ops,
graceful_period, priv);
devl_unlock(devlink);
return reporter;
}
EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create);
/**
* devl_health_reporter_create - create devlink health reporter
*
* @devlink: devlink instance which the health reports will relate
* @ops: devlink health reporter ops
* @graceful_period: min time (in msec) between recovery attempts
* @priv: driver priv pointer
*/
struct devlink_health_reporter *
devl_health_reporter_create(struct devlink *devlink,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv)
{
struct devlink_health_reporter *reporter;
devl_assert_locked(devlink);
if (devlink_health_reporter_find_by_name(devlink, ops->name))
return ERR_PTR(-EEXIST);
reporter = __devlink_health_reporter_create(devlink, ops,
graceful_period, priv);
if (IS_ERR(reporter))
return reporter;
list_add_tail(&reporter->list, &devlink->reporter_list);
return reporter;
}
EXPORT_SYMBOL_GPL(devl_health_reporter_create);
struct devlink_health_reporter *
devlink_health_reporter_create(struct devlink *devlink,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv)
{
struct devlink_health_reporter *reporter;
devl_lock(devlink);
reporter = devl_health_reporter_create(devlink, ops,
graceful_period, priv);
devl_unlock(devlink);
return reporter;
}
EXPORT_SYMBOL_GPL(devlink_health_reporter_create);
static void
devlink_health_reporter_free(struct devlink_health_reporter *reporter)
{
mutex_destroy(&reporter->dump_lock);
if (reporter->dump_fmsg)
devlink_fmsg_free(reporter->dump_fmsg);
kfree(reporter);
}
/**
* devl_health_reporter_destroy() - destroy devlink health reporter
*
* @reporter: devlink health reporter to destroy
*/
void
devl_health_reporter_destroy(struct devlink_health_reporter *reporter)
{
devl_assert_locked(reporter->devlink);
list_del(&reporter->list);
devlink_health_reporter_free(reporter);
}
EXPORT_SYMBOL_GPL(devl_health_reporter_destroy);
void
devlink_health_reporter_destroy(struct devlink_health_reporter *reporter)
{
struct devlink *devlink = reporter->devlink;
devl_lock(devlink);
devl_health_reporter_destroy(reporter);
devl_unlock(devlink);
}
EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy);
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