From: Ronak Doshi <doshir@vmware.com>
Date: Sun, 19 Jun 2022 17:10:13 -0700
Subject: vmxnet3: disable overlay offloads if UPT device does not support
Patch-mainline: v6.0-rc1
Git-commit: a56b158a5078b8120d3d72fc9fd44efed5123b12
References: bsc#1200431

'Commit 6f91f4ba046e ("vmxnet3: add support for capability registers")'
added support for capability registers. These registers are used
to advertize capabilities of the device.

The patch updated the dev_caps to disable outer checksum offload if
PTCR register does not support it. However, it missed to update
other overlay offloads. This patch fixes this issue.

Fixes: 6f91f4ba046e ("vmxnet3: add support for capability registers")
Signed-off-by: Ronak Doshi <doshir@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/vmxnet3/vmxnet3_drv.c     |    9 ++++++++-
 drivers/net/vmxnet3/vmxnet3_ethtool.c |    6 ++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3365,10 +3365,17 @@ vmxnet3_declare_features(struct vmxnet3_
 		adapter->dev_caps[0] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 		spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 
+		if (!(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_CHECKSUM_OFFLOAD)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_CHECKSUM_OFFLOAD)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_TSO)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_TSO))) {
+			netdev->hw_enc_features &= ~NETIF_F_GSO_UDP_TUNNEL;
+			netdev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL;
+		}
 		if (!(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_OUTER_CHECKSUM_OFFLOAD)) &&
 		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_OUTER_CHECKSUM_OFFLOAD))) {
 			netdev->hw_enc_features &= ~NETIF_F_GSO_UDP_TUNNEL_CSUM;
-			netdev->features &= ~NETIF_F_GSO_UDP_TUNNEL_CSUM;
+			netdev->hw_features &= ~NETIF_F_GSO_UDP_TUNNEL_CSUM;
 		}
 	}
 
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
@@ -346,6 +346,12 @@ static void vmxnet3_enable_encap_offload
 		adapter->dev_caps[0] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 		spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 
+		if (!(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_CHECKSUM_OFFLOAD)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_CHECKSUM_OFFLOAD)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_TSO)) &&
+		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_TSO))) {
+			netdev->hw_enc_features &= ~NETIF_F_GSO_UDP_TUNNEL;
+		}
 		if (!(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_GENEVE_OUTER_CHECKSUM_OFFLOAD)) &&
 		    !(adapter->dev_caps[0] & (1UL << VMXNET3_CAP_VXLAN_OUTER_CHECKSUM_OFFLOAD))) {
 			netdev->hw_enc_features &= ~NETIF_F_GSO_UDP_TUNNEL_CSUM;