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>

1 files changed, 20 insertions, 1 deletions

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 9e522639693d..e48680efe54a 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -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,