ethtool: move firmware flashing flag to struct ethtool_netdev_state

Commit 31e0aa9 ("ethtool: Veto some operations during firmware flashing process")
 added a flag module_fw_flash_in_progress to struct net_device.  As
 this is ethtool related state, move it to the recently created
 struct ethtool_netdev_state, accessed via the 'ethtool' member of
 struct net_device.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20240703121849.652893-1-edward.cree@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: Edward Cree

include/linux/ethtool.h

@@ -1107,11 +1107,13 @@ int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
  * @rss_lock:		Protects entries in @rss_ctx.  May be taken from
  *			within RTNL.
  * @wol_enabled:	Wake-on-LAN is enabled
+ * @module_fw_flash_in_progress: Module firmware flashing is in progress.
  */
 struct ethtool_netdev_state {
 	struct xarray		rss_ctx;
 	struct mutex		rss_lock;
 	unsigned		wol_enabled:1;
+	unsigned		module_fw_flash_in_progress:1;
 };
 
 struct phy_device;

include/linux/netdevice.h

@@ -1989,8 +1989,6 @@ enum netdev_reg_state {
  *
  *	@threaded:	napi threaded mode is enabled
  *
- *	@module_fw_flash_in_progress:	Module firmware flashing is in progress.
- *
  *	@net_notifier_list:	List of per-net netdev notifier block
  *				that follow this device when it is moved
  *				to another network namespace.
@@ -2376,7 +2374,6 @@ struct net_device {
 	bool			proto_down;
 	bool			threaded;
 
-	unsigned		module_fw_flash_in_progress:1;
 	struct list_head	net_notifier_list;
 
 #if IS_ENABLED(CONFIG_MACSEC)

net/ethtool/eeprom.c

@@ -91,7 +91,7 @@ static int get_module_eeprom_by_page(struct net_device *dev,
 {
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 
-	if (dev->module_fw_flash_in_progress) {
+	if (dev->ethtool->module_fw_flash_in_progress) {
 		NL_SET_ERR_MSG(extack,
 			       "Module firmware flashing is in progress");
 		return -EBUSY;

net/ethtool/ioctl.c

@@ -658,7 +658,7 @@ static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
 	if (!dev->ethtool_ops->get_link_ksettings)
 		return -EOPNOTSUPP;
 
-	if (dev->module_fw_flash_in_progress)
+	if (dev->ethtool->module_fw_flash_in_progress)
 		return -EBUSY;
 
 	memset(&link_ksettings, 0, sizeof(link_ksettings));
@@ -1572,7 +1572,7 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr)
 	if (!dev->ethtool_ops->reset)
 		return -EOPNOTSUPP;
 
-	if (dev->module_fw_flash_in_progress)
+	if (dev->ethtool->module_fw_flash_in_progress)
 		return -EBUSY;
 
 	if (copy_from_user(&reset, useraddr, sizeof(reset)))
@@ -2588,7 +2588,7 @@ int ethtool_get_module_info_call(struct net_device *dev,
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 	struct phy_device *phydev = dev->phydev;
 
-	if (dev->module_fw_flash_in_progress)
+	if (dev->ethtool->module_fw_flash_in_progress)
 		return -EBUSY;
 
 	if (dev->sfp_bus)
@@ -2628,7 +2628,7 @@ int ethtool_get_module_eeprom_call(struct net_device *dev,
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 	struct phy_device *phydev = dev->phydev;
 
-	if (dev->module_fw_flash_in_progress)
+	if (dev->ethtool->module_fw_flash_in_progress)
 		return -EBUSY;
 
 	if (dev->sfp_bus)

net/ethtool/module.c

@@ -37,7 +37,7 @@ static int module_get_power_mode(struct net_device *dev,
 	if (!ops->get_module_power_mode)
 		return 0;
 
-	if (dev->module_fw_flash_in_progress) {
+	if (dev->ethtool->module_fw_flash_in_progress) {
 		NL_SET_ERR_MSG(extack,
 			       "Module firmware flashing is in progress");
 		return -EBUSY;
@@ -119,7 +119,7 @@ ethnl_set_module_validate(struct ethnl_req_info *req_info,
 	if (!tb[ETHTOOL_A_MODULE_POWER_MODE_POLICY])
 		return 0;
 
-	if (req_info->dev->module_fw_flash_in_progress) {
+	if (req_info->dev->ethtool->module_fw_flash_in_progress) {
 		NL_SET_ERR_MSG(info->extack,
 			       "Module firmware flashing is in progress");
 		return -EBUSY;
@@ -226,7 +226,7 @@ static void module_flash_fw_work(struct work_struct *work)
 	ethtool_cmis_fw_update(&module_fw->fw_update);
 
 	module_flash_fw_work_list_del(&module_fw->list);
-	module_fw->fw_update.dev->module_fw_flash_in_progress = false;
+	module_fw->fw_update.dev->ethtool->module_fw_flash_in_progress = false;
 	netdev_put(module_fw->fw_update.dev, &module_fw->dev_tracker);
 	release_firmware(module_fw->fw_update.fw);
 	kfree(module_fw);
@@ -318,7 +318,7 @@ module_flash_fw_schedule(struct net_device *dev, const char *file_name,
 	if (err < 0)
 		goto err_release_firmware;
 
-	dev->module_fw_flash_in_progress = true;
+	dev->ethtool->module_fw_flash_in_progress = true;
 	netdev_hold(dev, &module_fw->dev_tracker, GFP_KERNEL);
 	fw_update->dev = dev;
 	fw_update->ntf_params.portid = info->snd_portid;
@@ -385,7 +385,7 @@ static int ethnl_module_fw_flash_validate(struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 
-	if (dev->module_fw_flash_in_progress) {
+	if (dev->ethtool->module_fw_flash_in_progress) {
 		NL_SET_ERR_MSG(extack, "Module firmware flashing already in progress");
 		return -EBUSY;
 	}

net/ethtool/netlink.c

@@ -807,7 +807,7 @@ static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
 		ethnl_notify_features(ptr);
 		break;
 	case NETDEV_PRE_UP:
-		if (dev->module_fw_flash_in_progress) {
+		if (dev->ethtool->module_fw_flash_in_progress) {
 			NL_SET_ERR_MSG(extack, "Can't set port up while flashing module firmware");
 			return NOTIFY_BAD;
 		}