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net: usb: r8152: Add MAC passthrough support for more Lenovo Docks 

Like ThinkaPad Thunderbolt 4 Dock, more Lenovo docks start to use the original
Realtek USB ethernet chip ID 0bda:8153.

Lenovo Docks always use their own IDs for usb hub, even for older Docks.
If parent hub is from Lenovo, then r8152 should try MAC passthrough.
Verified on Lenovo TBT3 dock too.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Aaron Ma 2021-11-16 22:19:17 +08:00 committed by David S. Miller
parent 9311ccef27
commit f77b83b5bb
1 changed files with 3 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/usb/r8152.c
View File

@ -9603,12 +9603,9 @@ static int rtl8152_probe(struct usb_interface *intf,
netdev->hw_features &= ~NETIF_F_RXCSUM;
}
if (le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_LENOVO) {
switch (le16_to_cpu(udev->descriptor.idProduct)) {
case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2:
case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2:
tp->lenovo_macpassthru = 1;
}
if (udev->parent &&
le16_to_cpu(udev->parent->descriptor.idVendor) == VENDOR_ID_LENOVO) {
tp->lenovo_macpassthru = 1;
}
if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial &&