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-rw-r--r--net/switchdev/Makefile2
-rw-r--r--net/switchdev/switchdev.c100
2 files changed, 13 insertions, 89 deletions
diff --git a/net/switchdev/Makefile b/net/switchdev/Makefile
index bd69a3136e76..c5561d7f3a7c 100644
--- a/net/switchdev/Makefile
+++ b/net/switchdev/Makefile
@@ -3,4 +3,4 @@
# Makefile for the Switch device API
#
-obj-$(CONFIG_NET_SWITCHDEV) += switchdev.o
+obj-y += switchdev.o
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 2c1ffc9ba2eb..94113ca29dcf 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -100,15 +100,13 @@ static int switchdev_deferred_enqueue(struct net_device *dev,
static int switchdev_port_attr_notify(enum switchdev_notifier_type nt,
struct net_device *dev,
- const struct switchdev_attr *attr,
- struct switchdev_trans *trans)
+ const struct switchdev_attr *attr)
{
int err;
int rc;
struct switchdev_notifier_port_attr_info attr_info = {
.attr = attr,
- .trans = trans,
.handled = false,
};
@@ -129,34 +127,7 @@ static int switchdev_port_attr_notify(enum switchdev_notifier_type nt,
static int switchdev_port_attr_set_now(struct net_device *dev,
const struct switchdev_attr *attr)
{
- struct switchdev_trans trans;
- int err;
-
- /* Phase I: prepare for attr set. Driver/device should fail
- * here if there are going to be issues in the commit phase,
- * such as lack of resources or support. The driver/device
- * should reserve resources needed for the commit phase here,
- * but should not commit the attr.
- */
-
- trans.ph_prepare = true;
- err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr,
- &trans);
- if (err)
- return err;
-
- /* Phase II: commit attr set. This cannot fail as a fault
- * of driver/device. If it does, it's a bug in the driver/device
- * because the driver said everythings was OK in phase I.
- */
-
- trans.ph_prepare = false;
- err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr,
- &trans);
- WARN(err, "%s: Commit of attribute (id=%d) failed.\n",
- dev->name, attr->id);
-
- return err;
+ return switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr);
}
static void switchdev_port_attr_set_deferred(struct net_device *dev,
@@ -186,10 +157,6 @@ static int switchdev_port_attr_set_defer(struct net_device *dev,
* @dev: port device
* @attr: attribute to set
*
- * Use a 2-phase prepare-commit transaction model to ensure
- * system is not left in a partially updated state due to
- * failure from driver/device.
- *
* rtnl_lock must be held and must not be in atomic section,
* in case SWITCHDEV_F_DEFER flag is not set.
*/
@@ -221,7 +188,6 @@ static size_t switchdev_obj_size(const struct switchdev_obj *obj)
static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
struct net_device *dev,
const struct switchdev_obj *obj,
- struct switchdev_trans *trans,
struct netlink_ext_ack *extack)
{
int rc;
@@ -229,7 +195,6 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
struct switchdev_notifier_port_obj_info obj_info = {
.obj = obj,
- .trans = trans,
.handled = false,
};
@@ -244,48 +209,15 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
return 0;
}
-static int switchdev_port_obj_add_now(struct net_device *dev,
- const struct switchdev_obj *obj,
- struct netlink_ext_ack *extack)
-{
- struct switchdev_trans trans;
- int err;
-
- ASSERT_RTNL();
-
- /* Phase I: prepare for obj add. Driver/device should fail
- * here if there are going to be issues in the commit phase,
- * such as lack of resources or support. The driver/device
- * should reserve resources needed for the commit phase here,
- * but should not commit the obj.
- */
-
- trans.ph_prepare = true;
- err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
- dev, obj, &trans, extack);
- if (err)
- return err;
-
- /* Phase II: commit obj add. This cannot fail as a fault
- * of driver/device. If it does, it's a bug in the driver/device
- * because the driver said everythings was OK in phase I.
- */
-
- trans.ph_prepare = false;
- err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
- dev, obj, &trans, extack);
- WARN(err, "%s: Commit of object (id=%d) failed.\n", dev->name, obj->id);
-
- return err;
-}
-
static void switchdev_port_obj_add_deferred(struct net_device *dev,
const void *data)
{
const struct switchdev_obj *obj = data;
int err;
- err = switchdev_port_obj_add_now(dev, obj, NULL);
+ ASSERT_RTNL();
+ err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
+ dev, obj, NULL);
if (err && err != -EOPNOTSUPP)
netdev_err(dev, "failed (err=%d) to add object (id=%d)\n",
err, obj->id);
@@ -307,10 +239,6 @@ static int switchdev_port_obj_add_defer(struct net_device *dev,
* @obj: object to add
* @extack: netlink extended ack
*
- * Use a 2-phase prepare-commit transaction model to ensure
- * system is not left in a partially updated state due to
- * failure from driver/device.
- *
* rtnl_lock must be held and must not be in atomic section,
* in case SWITCHDEV_F_DEFER flag is not set.
*/
@@ -321,7 +249,8 @@ int switchdev_port_obj_add(struct net_device *dev,
if (obj->flags & SWITCHDEV_F_DEFER)
return switchdev_port_obj_add_defer(dev, obj);
ASSERT_RTNL();
- return switchdev_port_obj_add_now(dev, obj, extack);
+ return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
+ dev, obj, extack);
}
EXPORT_SYMBOL_GPL(switchdev_port_obj_add);
@@ -329,7 +258,7 @@ static int switchdev_port_obj_del_now(struct net_device *dev,
const struct switchdev_obj *obj)
{
return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_DEL,
- dev, obj, NULL, NULL);
+ dev, obj, NULL);
}
static void switchdev_port_obj_del_deferred(struct net_device *dev,
@@ -449,7 +378,6 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev,
bool (*check_cb)(const struct net_device *dev),
int (*add_cb)(struct net_device *dev,
const struct switchdev_obj *obj,
- struct switchdev_trans *trans,
struct netlink_ext_ack *extack))
{
struct netlink_ext_ack *extack;
@@ -460,8 +388,7 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev,
extack = switchdev_notifier_info_to_extack(&port_obj_info->info);
if (check_cb(dev)) {
- err = add_cb(dev, port_obj_info->obj, port_obj_info->trans,
- extack);
+ err = add_cb(dev, port_obj_info->obj, extack);
if (err != -EOPNOTSUPP)
port_obj_info->handled = true;
return err;
@@ -492,7 +419,6 @@ int switchdev_handle_port_obj_add(struct net_device *dev,
bool (*check_cb)(const struct net_device *dev),
int (*add_cb)(struct net_device *dev,
const struct switchdev_obj *obj,
- struct switchdev_trans *trans,
struct netlink_ext_ack *extack))
{
int err;
@@ -562,15 +488,14 @@ static int __switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr,
- struct switchdev_trans *trans))
+ const struct switchdev_attr *attr))
{
struct net_device *lower_dev;
struct list_head *iter;
int err = -EOPNOTSUPP;
if (check_cb(dev)) {
- err = set_cb(dev, port_attr_info->attr, port_attr_info->trans);
+ err = set_cb(dev, port_attr_info->attr);
if (err != -EOPNOTSUPP)
port_attr_info->handled = true;
return err;
@@ -600,8 +525,7 @@ int switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr,
- struct switchdev_trans *trans))
+ const struct switchdev_attr *attr))
{
int err;
generated by cgit (git 2.34.1) at 2024-05-23 04:16:58 +0000