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net: devlink: move reload fail indication to devlink core and expose to user 

Currently the fact that devlink reload failed is stored in drivers.
Move this flag into devlink core. Also, expose it to the user.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-09-12 10:49:46 +02:00 committed by David S. Miller
parent 97691069dc
commit 2670ac2625
4 changed files with 30 additions and 11 deletions
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15
drivers/net/ethernet/mellanox/mlxsw/core.c
View File

@ -80,7 +80,6 @@ struct mlxsw_core {
struct mlxsw_thermal *thermal;
struct mlxsw_core_port *ports;
unsigned int max_ports;
bool reload_fail;
bool fw_flash_in_progress;
unsigned long driver_priv[0];
/* driver_priv has to be always the last item */
@ -1002,15 +1001,11 @@ mlxsw_devlink_core_bus_device_reload_up(struct devlink *devlink,
struct netlink_ext_ack *extack)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
int err;
err = mlxsw_core_bus_device_register(mlxsw_core->bus_info,
mlxsw_core->bus,
mlxsw_core->bus_priv, true,
devlink);
mlxsw_core->reload_fail = !!err;
return err;
return mlxsw_core_bus_device_register(mlxsw_core->bus_info,
mlxsw_core->bus,
mlxsw_core->bus_priv, true,
devlink);
}
static int mlxsw_devlink_flash_update(struct devlink *devlink,
@ -1254,7 +1249,7 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core,
{
struct devlink *devlink = priv_to_devlink(mlxsw_core);
if (mlxsw_core->reload_fail) {
if (devlink_is_reload_failed(devlink)) {
if (!reload)
/* Only the parts that were not de-initialized in the
* failed reload attempt need to be de-initialized.

3
include/net/devlink.h
View File

@ -38,6 +38,7 @@ struct devlink {
struct device *dev;
possible_net_t _net;
struct mutex lock;
bool reload_failed;
char priv[0] __aligned(NETDEV_ALIGN);
};
@ -945,6 +946,8 @@ void
devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
enum devlink_health_reporter_state state);
bool devlink_is_reload_failed(const struct devlink *devlink);
void devlink_flash_update_begin_notify(struct devlink *devlink);
void devlink_flash_update_end_notify(struct devlink *devlink);
void devlink_flash_update_status_notify(struct devlink *devlink,

2
include/uapi/linux/devlink.h
View File

@ -419,6 +419,8 @@ enum devlink_attr {
DEVLINK_ATTR_TRAP_METADATA, /* nested */
DEVLINK_ATTR_TRAP_GROUP_NAME, /* string */
DEVLINK_ATTR_RELOAD_FAILED, /* u8 0 or 1 */
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,

21
net/core/devlink.c
View File

@ -471,6 +471,8 @@ static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink,
if (devlink_nl_put_handle(msg, devlink))
goto nla_put_failure;
if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed))
goto nla_put_failure;
genlmsg_end(msg, hdr);
return 0;
@ -2677,6 +2679,21 @@ static bool devlink_reload_supported(struct devlink *devlink)
return devlink->ops->reload_down && devlink->ops->reload_up;
}
static void devlink_reload_failed_set(struct devlink *devlink,
bool reload_failed)
{
if (devlink->reload_failed == reload_failed)
return;
devlink->reload_failed = reload_failed;
devlink_notify(devlink, DEVLINK_CMD_NEW);
}
bool devlink_is_reload_failed(const struct devlink *devlink)
{
return devlink->reload_failed;
}
EXPORT_SYMBOL_GPL(devlink_is_reload_failed);
static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
@ -2693,7 +2710,9 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
err = devlink->ops->reload_down(devlink, info->extack);
if (err)
return err;
return devlink->ops->reload_up(devlink, info->extack);
err = devlink->ops->reload_up(devlink, info->extack);
devlink_reload_failed_set(devlink, !!err);
return err;
}
static int devlink_nl_flash_update_fill(struct sk_buff *msg,