| Message ID | 20250127104147.759658-1-cratiu@nvidia.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [net,v3] bonding: Correctly support GSO ESP offload | expand |
Same as v2, but I added Hangbin to 'Signed-off-by'.
On Mon, Jan 27, 2025 at 10:45:21AM +0000, Cosmin Ratiu wrote: > Same as v2, but I added Hangbin to 'Signed-off-by'. > Thanks for adding me to 'Signed-off-by'. Next time you can add the change log in the patch directly. e.g. Commit description --- v3 changes v2 changes --- Codes ... Thanks Hangbin
Cosmin Ratiu <cratiu@nvidia.com> wrote: >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 <liuhangbin@gmail.com> >Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> Acked-by: Jay Vosburgh <jv@jvosburgh.net> >--- > 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 7b78c2bada81..e45bba240cbc 100644 >--- a/drivers/net/bonding/bond_main.c >+++ b/drivers/net/bonding/bond_main.c >@@ -1538,17 +1538,20 @@ 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 >@@ -1582,8 +1585,9 @@ 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, >@@ -1598,12 +1602,8 @@ 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 | >@@ -6046,6 +6046,7 @@ 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 */ >-- >2.45.0 >
Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni <pabeni@redhat.com>: On Mon, 27 Jan 2025 12:41:47 +0200 you wrote: > 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 > > [...] Here is the summary with links: - [net,v3] bonding: Correctly support GSO ESP offload https://git.kernel.org/netdev/net/c/9e6c4e6b605c You are awesome, thank you!
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 7b78c2bada81..e45bba240cbc 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1538,17 +1538,20 @@ 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 @@ -1582,8 +1585,9 @@ 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, @@ -1598,12 +1602,8 @@ 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 | @@ -6046,6 +6046,7 @@ 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 */
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 <liuhangbin@gmail.com> Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com> --- drivers/net/bonding/bond_main.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-)