kernel/linux.git/drivers/net/usb/asix.h, branch linux-7.1.y

net: usb: remove unnecessary get_drvinfo code and driver versions

2026-01-31T01:44:18+00:00

Many USB network drivers define get_drvinfo functions which add no value over usbnet_get_drvinfo, only setting the driver name and version. usbnet_get_drvinfo automatically sets the driver name, and separate driver versions are now frowned upon in the kernel. Remove all driver versions and replace these get_drvinfo functions with references to usbnet_get_drvinfo where possible. Where that is not possible, remove unnecessary code to set the driver name. Also remove two unnecessary initializations from aqc111_get_drvinfo, an inaccurate comment in pegasus.c, and an unused macro in catc.c. Reviewed-by: Andrew Lunn Reviewed-by: Andy Shevchenko Reviewed-by: Peter Korsgaard (for dm9601.c) Signed-off-by: Ethan Nelson-Moore Link: https://patch.msgid.link/20260129042435.13395-2-enelsonmoore@gmail.com Signed-off-by: Jakub Kicinski

usbnet: asix AX88772: leave the carrier control to phylink

2025-04-11T01:42:50+00:00

ASIX AX88772B based USB 10/100 Ethernet adapter doesn't come up ("carrier off"), despite the built-in 100BASE-FX PHY positive link indication. The internal PHY is configured (using EEPROM) in fixed 100 Mbps full duplex mode. The primary problem appears to be using carrier_netif_{on,off}() while, at the same time, delegating carrier management to phylink. Use only the latter and remove "manual control" in the asix driver. I don't have any other AX88772 board here, but the problem doesn't seem specific to a particular board or settings - it's probably timing-dependent. Remove unused asix_adjust_link() as well. Signed-off-by: Krzysztof Hałasa Tested-by: Oleksij Rempel Link: https://patch.msgid.link/m3plhmdfte.fsf_-_@t19.piap.pl Signed-off-by: Jakub Kicinski

net: asix: ax88772: migrate to phylink

2022-08-26T09:00:52+00:00

There are some exotic ax88772 based devices which may require functionality provide by the phylink framework. For example: - US100A20SFP, USB 2.0 auf LWL Converter with SFP Cage - AX88772B USB to 100Base-TX Ethernet (with RMII) demo board, where it is possible to switch between internal PHY and external RMII based connection. So, convert this driver to phylink as soon as possible. Tested with: - AX88772A + internal PHY - AX88772B + external DP83TD510E T1L PHY Signed-off-by: Oleksij Rempel Signed-off-by: David S. Miller

net: asix: change the type of asix_set_sw/hw_mii to static

2022-07-06T01:40:01+00:00

The functions of asix_set_sw/hw_mii are not called in other files, so change them to static. Signed-off-by: Zhengchao Shao Link: https://lore.kernel.org/r/20220704123448.128980-1-shaozhengchao@huawei.com Signed-off-by: Jakub Kicinski

net: usb: asix: do not force pause frames support

2022-06-28T05:04:33+00:00

We should respect link partner capabilities and not force flow control support on every link. Even more, in current state the MAC driver do not advertises pause support so we should not keep flow control enabled at all. Fixes: e532a096be0e ("net: usb: asix: ax88772: add phylib support") Reported-by: Anton Lundin Signed-off-by: Oleksij Rempel Tested-by: Anton Lundin Link: https://lore.kernel.org/r/20220624075139.3139300-2-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski

net: usb: asix: suspend embedded PHY if external is used

2022-03-12T11:50:56+00:00

In case external PHY is used, we need to take care of embedded PHY. Since there are no methods to disable this PHY from the MAC side and keeping RMII reference clock, we need to suspend it. This patch will reduce electrical noise (PHY is continuing to send FLPs) and power consumption by 0,22W. Signed-off-by: Oleksij Rempel Signed-off-by: David S. Miller

net: usb: asix: make use of mdiobus_get_phy and phy_connect_direct

2022-03-12T11:50:56+00:00

In most cases we use own mdio bus, there is no need to create and store string for the PHY address. Signed-off-by: Oleksij Rempel Signed-off-by: David S. Miller

net: usb: asix: store chipid to avoid reading it on reset

2022-03-12T11:50:56+00:00

We already read chipid on probe. There is no need to read it on reset. Signed-off-by: Oleksij Rempel Signed-off-by: David S. Miller

net: usb: asix: unify ax88772_resume code

2022-03-12T11:50:56+00:00

The only difference is the reset code, so remove not needed duplicates. Signed-off-by: Oleksij Rempel Signed-off-by: David S. Miller

net: asix: add proper error handling of usb read errors

2022-02-07T12:28:36+00:00

Syzbot once again hit uninit value in asix driver. The problem still the same -- asix_read_cmd() reads less bytes, than was requested by caller. Since all read requests are performed via asix_read_cmd() let's catch usb related error there and add __must_check notation to be sure all callers actually check return value. So, this patch adds sanity check inside asix_read_cmd(), that simply checks if bytes read are not less, than was requested and adds missing error handling of asix_read_cmd() all across the driver code. Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter") Reported-and-tested-by: syzbot+6ca9f7867b77c2d316ac@syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin Tested-by: Oleksij Rempel Reviewed-by: Greg Kroah-Hartman Signed-off-by: David S. Miller