[PATCH net-next v6 00/13] ax88179_178a: Add support for AX88179A-based chips

This adds support for the current generation of ASIX network adapter chips,
which are based on the AX88179A. This includes the AX88179A/B (1GBit-PHY),
AX88772D/E (100MBit) and AX88279 (2.5GBit).

The AX179A-based chips all provide both a CDC-NCM compatible USB interface,
and a proprietary vendor interface with more features. By default, the
proprietary vendor interface is not active and Linux will load the CDC-NCM
driver to support the devices. If the ax88179_178a module is configured by
the OS to have precedence over CDC-NCM, then this driver will switch the
device to use the vendor interface, and the device will be controlled by
the ax88179_178a driver when the device is probed again after an automatic
reset of the device bringing up the vendor interface.

The following hardware was tested:
Delock 66046 2.5GBit adapter (AX88279, FW: 1.2.0.0)
TP-Link UE306 1GBit adapter (AX88179B, FW: 1.3.0.0)
Renkforce RF-4708614 1GBit adapter (AX88179A, FW: 1.0.4.0)
UGREEN CR110 100MBit adapter (AX88722E, FW: 1.3.0.0)

The driver supports the following features
- EEE
- TCP segmentation offload
- VLAN filtering/tagging offload 
  (NETIF_F_HW_VLAN_CTAG_FILTER, NETIF_F_HW_VLAN_CTAG_RX/TX)
- RX/TX checksum offload
- FC/Pause configuration
- EEPROM read access

The code is based on the ASIX 4.1.0 out-of-tree driver published under
the GPL,, the aqc111 driver which provides support for the AX88279A,
and some tracing of USB-transfers of the Windows-driver.

Signed-off-by: Birger Koblitz <mail-+5ewKuAgbOWcE/[email protected]>
Tested-by: Jianhui Xu <[email protected]>
---
Changes in v6:
- Use genphy_read_status() in asix_ax88279_read_status()
- Use SGMII and 2500BaseX interfaces for PHY
- Fix speed determination of MAC/PHY link
- Fix bulk transfer configuration to use enums for bulk configuration types
- Link to v5: https://lore.kernel.org/r/20260802-ax88179a-v5-0-dcb9fea4acd4-+5ewKuAgbOWcE/[email protected]

Changes in v5:
- Fixed read_status() and config_aneg() in PHY driver
- Introduced netdev2data() as convenience function
- netdev_info instances and debugging relicts removed
- Several instances of badly written/formatted code that was copy and pasted from
  the original driver corrected
- select PHYLINK added to Kconfig when phylib dependency added
- PHYLINK selects PHYLIB, so not needed to specify separately
- Link to v4: https://lore.kernel.org/r/20260731-ax88179a-v4-0-2cf1f71b1dd2-+5ewKuAgbOWcE/[email protected]

Changes in v4:
- Split driver into library part and part2 for AX88179 and AX88179A-based
  controllers
- Driver renamed ax88179
- Improved phylink use: use phylink standard functions for speed and EEE-settings,
  correct MAC capabilities, removed ax88179_status() irq-urb callback
- Fixes in PHY driver for AX88179A integrated PHYs
- Link to v3: https://lore.kernel.org/r/20260724-ax88179a-v3-0-bdde4f905883-+5ewKuAgbOWcE/[email protected]

Changes in v3:
- Add PHY drivers for the PHYs of the AX88179A-based controllers
- Use phylink for the AX88179A-based chips
- Link to v2: https://lore.kernel.org/r/20260708-ax88179a-v2-0-0800fedb2e16-+5ewKuAgbOWcE/[email protected]

Changes in v2:
- Correctly use net-next prefix
- Fix compilation issue in HW support patch
- Split MMD support patch into patches for EEE/new chip support
- Do not use ADVERTISE_RESV but private flag definition
- Fix pause configuration to keep track of settings when autoneg disabled
- Fix issue with unitialized variable reported by kernel test robot <[email protected]>
- Avoid white-space changes

- Link to v1: https://lore.kernel.org/r/20260701-ax88179a-v1-0-13685df67515-+5ewKuAgbOWcE/[email protected]

---
Birger Koblitz (13):
      ax88179_178a: Fix endianness of pause watermark register
      ax88179_178a: Split driver into library and device specific code
      ax88179_178a: Add netdev2data() convenience function
      ax88179_178a: Add HW support for AX179A-based chips
      ax88179_178a: Add EEE configuration support for AX88179A MACs
      ax88179_178a: Add EEE configuration support for AX88179A PHYs
      ax88179_178a: Add VLAN offload support for AX88179A
      ax88179_178a: Add AX179A/AX279 multicast configuration
      ax88179_178a: Add Suspend/resume support for AX88179A/772D/279
      ax88179_178a: Add ethtool get_drvinfo
      ax88179_178a: Update driver name and information
      ax88179_178a: Add support for AX88179A/772D/279 EEPROM access
      ax88796b: Add support for AX88772D, AX88179A and AX88279

 MAINTAINERS                        |    6 +
 drivers/net/phy/ax88796b.c         |  180 ++++++
 drivers/net/usb/Kconfig            |   10 +-
 drivers/net/usb/Makefile           |    3 +-
 drivers/net/usb/ax88179_178a.c     |  664 ++------------------
 drivers/net/usb/ax88179_lib.c      |  515 ++++++++++++++++
 drivers/net/usb/ax88179_lib.h      |  358 +++++++++++
 drivers/net/usb/ax88179a_devices.c | 1201 ++++++++++++++++++++++++++++++++++++
 8 files changed, 2313 insertions(+), 624 deletions(-)
---
base-commit: 1a9edf8be190decb17227e3cba540513d93ebb85
change-id: 20260630-ax88179a-a1d89fe21730

Best regards,
-- 
Birger Koblitz <mail-+5ewKuAgbOWcE/[email protected]>