diff mbox series

[net,1/2] bonding: fix xfrm offload feature setup on active-backup mode

Message ID 20241211071127.38452-2-liuhangbin@gmail.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series bond: fix xfrm offload feature during init | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success Errors and warnings before: 0 (+0) this patch: 0 (+0)
netdev/cc_maintainers success CCed 8 of 9 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 43 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 13 this patch: 13
netdev/source_inline success Was 0 now: 0

Commit Message

Hangbin Liu Dec. 11, 2024, 7:11 a.m. UTC
The active-backup bonding mode supports XFRM ESP offload. However, when
a bond is added using command like `ip link add bond0 type bond mode 1
miimon 100`, the `ethtool -k` command shows that the XFRM ESP offload is
disabled. This occurs because, in bond_newlink(), we change bond link
first and register bond device later. So the XFRM feature update in
bond_option_mode_set() is not called as the bond device is not yet
registered, leading to the offload feature not being set successfully.

To resolve this issue, we can modify the code order in bond_newlink() to
ensure that the bond device is registered first before changing the bond
link parameters. This change will allow the XFRM ESP offload feature to be
correctly enabled.

Fixes: 007ab5345545 ("bonding: fix feature flag setting at init time")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 drivers/net/bonding/bond_main.c    |  2 +-
 drivers/net/bonding/bond_netlink.c | 17 ++++++++++-------
 include/net/bonding.h              |  1 +
 3 files changed, 12 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 49dd4fe195e5..7daeab67e7b5 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4389,7 +4389,7 @@  void bond_work_init_all(struct bonding *bond)
 	INIT_DELAYED_WORK(&bond->slave_arr_work, bond_slave_arr_handler);
 }
 
-static void bond_work_cancel_all(struct bonding *bond)
+void bond_work_cancel_all(struct bonding *bond)
 {
 	cancel_delayed_work_sync(&bond->mii_work);
 	cancel_delayed_work_sync(&bond->arp_work);
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 2a6a424806aa..7fe8c62366eb 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -568,18 +568,21 @@  static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 			struct nlattr *tb[], struct nlattr *data[],
 			struct netlink_ext_ack *extack)
 {
+	struct bonding *bond = netdev_priv(bond_dev);
 	int err;
 
-	err = bond_changelink(bond_dev, tb, data, extack);
-	if (err < 0)
+	err = register_netdevice(bond_dev);
+	if (err)
 		return err;
 
-	err = register_netdevice(bond_dev);
-	if (!err) {
-		struct bonding *bond = netdev_priv(bond_dev);
+	netif_carrier_off(bond_dev);
+	bond_work_init_all(bond);
 
-		netif_carrier_off(bond_dev);
-		bond_work_init_all(bond);
+	err = bond_changelink(bond_dev, tb, data, extack);
+	if (err) {
+		bond_work_cancel_all(bond);
+		netif_carrier_on(bond_dev);
+		unregister_netdevice(bond_dev);
 	}
 
 	return err;
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 8bb5f016969f..e5e005cd2e17 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -707,6 +707,7 @@  struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev,
 int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave);
 void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay);
 void bond_work_init_all(struct bonding *bond);
+void bond_work_cancel_all(struct bonding *bond);
 
 #ifdef CONFIG_PROC_FS
 void bond_create_proc_entry(struct bonding *bond);