Re: [PATCH net-next v5 04/13] ax88179_178a: Add HW support for AX179A-based chips

From: Birger Koblitz

Date: Thu Aug 06 2026 - 15:34:45 EST


On 02/08/2026 23:36, Andrew Lunn wrote:
+static void ax88179a_bulkin_config(struct usbnet *dev, u8 link_sts)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ const struct ax_bulkin_settings *bulkin_data;
+ int index = 0;
+
+ switch (ax179_data->speed) {

What is setting ->speed?
A leftover from before refactoring, sorry!
Fixed in v6.


+static void ax88179a_mac_link_up(struct phylink_config *config,
+ struct phy_device *phy,
+ unsigned int phy_mode, phy_interface_t interface,
+ int speed, int duplex,
+ bool tx_pause, bool rx_pause)
+{

It should be coming from there, but i don't see any code setting it.

+ ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 1, 1, &link_sts);
+ ax88179a_bulkin_config(dev, link_sts);

It might be better to pass speed as a parameter.

I would probably play with ethtool and set the advertised speeds to
only include slower speeds, like 10Half, and make sure the link works
correctly.
Indeed. The speed now comes now from phylink. I tested all speeds (including
unsupported ones) and the mac_link_up() implementationn now works
as expected, including after suspend/resume.

Birger