On Tue, Jan 21, 2025 at 08:55:25AM +0000, Hangbin Liu wrote:

The fixed commit adds NETIF_F_GSO_ESP bit for bonding gso_partial_features. However, if we don't set the dev NETIF_F_GSO_PARTIAL bit, the later netdev_change_features() -> netdev_fix_features() will remove the NETIF_F_GSO_ESP bit from the dev features. This causes ethtool to show that the bond does not support tx-esp-segmentation. For example

# ethtool -k bond0 | grep esp tx-esp-segmentation: off [requested on] esp-hw-offload: on esp-tx-csum-hw-offload: on

Add the NETIF_F_GSO_PARTIAL bit to bond dev features when set gso_partial_features to fix this issue.

Fixes: 4861333b4217 ("bonding: add ESP offload features when slaves support") Reported-by: Liang Li liali@redhat.com Signed-off-by: Hangbin Liu liuhangbin@gmail.com

---

drivers/net/bonding/bond_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 7b78c2bada81..e1c054416d5e 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1598,10 +1598,12 @@ static void bond_compute_features(struct bonding *bond) } bond_dev->hard_header_len = max_hard_header_len;

• if (gso_partial_features & NETIF_F_GSO_ESP)

• if (gso_partial_features & NETIF_F_GSO_ESP) { bond_dev->gso_partial_features |= NETIF_F_GSO_ESP;

• else

• bond_dev->features |= NETIF_F_GSO_PARTIAL;
  

• } else { bond_dev->gso_partial_features &= ~NETIF_F_GSO_ESP;
• }

Hmm, looks we need to remove NETIF_F_GSO_PARTIAL when remove the gso_partial_features.

BTW, I saw some drivers set NETIF_F_GSO_PARTIAL on dev->features. Some other drivers set NETIF_F_GSO_PARTIAL on dev->hw_enc_features. I haven't see a doc about where we should set. Please tell me if you have any comments.

Thanks Hangbin