From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF006351C1C; Tue, 21 Jul 2026 20:14:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784664873; cv=none; b=krLuOHqiwe48J2Q5QbVZzSRs4ed3VbDw4vHBaG6IclrRC/mGZ2aSwMf+BWCgilvKs2kID2q6HhGyI79SDHsbbMmJDjiIHGBY1IJQuOCHNy+jTc+uDxyIuAGLWFAzTWJqfxzaKrqmGdhv5L69lxiu7PFAcFcCRdNN629EPPf3kbI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784664873; c=relaxed/simple; bh=MCpUv5yqGuJ+YgmMN6Bu/wKUsuXjuBV+b2Q5KJqm5RQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZmUWlSJ8W5pZ3X0IThyDH9upPsEsz6uKqxA2Gw8v1dHtzpTEgDao00dAEgTFDCYpJmAkxRYPltmrO09lmOVPxtT9+0Uv/sdpcJYmtAg4UT24iE4+8V/u9BKA/oM/2j3qZ+LJzO1DORhsLkTE6B5mW3/NSeZst8Nj/WT7z0PAiH0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=lLN64X9o; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="lLN64X9o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28C051F00A3A; Tue, 21 Jul 2026 20:14:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784664872; bh=amjjPRBG7zQ0cgty3beebyz2SMYnVbGlcoTYM+7uTS4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=lLN64X9oKMBneEyocL1mfVFBIgD+20t87ba9VeLGol3haCup5emW18Y3x1AQy1q/+ lyVTSWI4Fu4FefBVpYTwPXQ0mhHA5oGytTfNuHd6ENdr/d2k9GIRHRHntNu06KUQl6 zpeAylDP/aRsKh6vs7DrWr3TE0VSOMraNHYR6plw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hangbin Liu , Cosmin Ratiu , Jay Vosburgh , Paolo Abeni , Wentao Guan , Sasha Levin Subject: [PATCH 6.6 0047/1266] bonding: Correctly support GSO ESP offload Date: Tue, 21 Jul 2026 17:08:04 +0200 Message-ID: <20260721152442.854889591@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152441.786066624@linuxfoundation.org> References: <20260721152441.786066624@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cosmin Ratiu [ Upstream commit 9e6c4e6b605c1fa3e24f74ee0b641e95f090188a ] The referenced fix is incomplete. It correctly computes bond_dev->gso_partial_features across slaves, but unfortunately netdev_fix_features discards gso_partial_features from the feature set if NETIF_F_GSO_PARTIAL isn't set in bond_dev->features. This is visible with ethtool -k bond0 | grep esp: tx-esp-segmentation: off [requested on] esp-hw-offload: on esp-tx-csum-hw-offload: on This patch reworks the bonding GSO offload support by: - making aggregating gso_partial_features across slaves similar to the other feature sets (this part is a no-op). - advertising the default partial gso features on empty bond devs, same as with other feature sets (also a no-op). - adding NETIF_F_GSO_PARTIAL to hw_enc_features filtered across slaves. - adding NETIF_F_GSO_PARTIAL to features in bond_setup() With all of these, 'ethtool -k bond0 | grep esp' now reports: tx-esp-segmentation: on esp-hw-offload: on esp-tx-csum-hw-offload: on Fixes: 4861333b4217 ("bonding: add ESP offload features when slaves support") Signed-off-by: Hangbin Liu Signed-off-by: Cosmin Ratiu Acked-by: Jay Vosburgh Link: https://patch.msgid.link/20250127104147.759658-1-cratiu@nvidia.com Signed-off-by: Paolo Abeni Stable-dep-of: 950803f72547 ("bonding: fix type confusion in bond_setup_by_slave()") Signed-off-by: Wentao Guan Signed-off-by: Sasha Levin --- drivers/net/bonding/bond_main.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index ec21958babe7d8..9ba63cf77cf086 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1474,17 +1474,20 @@ static netdev_features_t bond_fix_features(struct net_device *dev, NETIF_F_HIGHDMA | NETIF_F_LRO) #define BOND_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ - NETIF_F_RXCSUM | NETIF_F_GSO_SOFTWARE) + NETIF_F_RXCSUM | NETIF_F_GSO_SOFTWARE | \ + NETIF_F_GSO_PARTIAL) #define BOND_MPLS_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ NETIF_F_GSO_SOFTWARE) +#define BOND_GSO_PARTIAL_FEATURES (NETIF_F_GSO_ESP) + static void bond_compute_features(struct bonding *bond) { + netdev_features_t gso_partial_features = BOND_GSO_PARTIAL_FEATURES; unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM; - netdev_features_t gso_partial_features = NETIF_F_GSO_ESP; netdev_features_t vlan_features = BOND_VLAN_FEATURES; netdev_features_t enc_features = BOND_ENC_FEATURES; #ifdef CONFIG_XFRM_OFFLOAD @@ -1518,8 +1521,9 @@ static void bond_compute_features(struct bonding *bond) BOND_XFRM_FEATURES); #endif /* CONFIG_XFRM_OFFLOAD */ - if (slave->dev->hw_enc_features & NETIF_F_GSO_PARTIAL) - gso_partial_features &= slave->dev->gso_partial_features; + gso_partial_features = netdev_increment_features(gso_partial_features, + slave->dev->gso_partial_features, + BOND_GSO_PARTIAL_FEATURES); mpls_features = netdev_increment_features(mpls_features, slave->dev->mpls_features, @@ -1534,12 +1538,8 @@ 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) - bond_dev->gso_partial_features |= NETIF_F_GSO_ESP; - else - bond_dev->gso_partial_features &= ~NETIF_F_GSO_ESP; - done: + bond_dev->gso_partial_features = gso_partial_features; bond_dev->vlan_features = vlan_features; bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | NETIF_F_HW_VLAN_CTAG_TX | @@ -6090,6 +6090,7 @@ void bond_setup(struct net_device *bond_dev) bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; bond_dev->features |= bond_dev->hw_features; bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; + bond_dev->features |= NETIF_F_GSO_PARTIAL; #ifdef CONFIG_XFRM_OFFLOAD bond_dev->hw_features |= BOND_XFRM_FEATURES; /* Only enable XFRM features if this is an active-backup config */ -- 2.53.0