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.
Tested-by: Jianhui Xu <neuromoments@gmail.com>
Signed-off-by: Birger Koblitz <mail@birger-koblitz.de>
---
Changes in v16:
- Fix error-checking in VLAN-offload code
as Suggested-by: Jianhui Xu <neuromoments@gmail.com>
- Link to v15: https://lore.kernel.org/r/20261002-ax88179a-v15-0-131d9286fcd7@birger-koblitz.de
Changes in v15:
- Removed already committed patch fixing pause watermark register
endianess
- Rebased
- Link to v14: https://lore.kernel.org/r/20260929-ax88179a-v14-0-a1f2249e42ea@birger-koblitz.de
Changes in v14:
- Fix return value handling in VLAN offload functions
- Add explanatory comment for phylink_mac_interrupt()
- Link to v13: https://lore.kernel.org/r/20260927-ax88179a-v13-0-4fac6b3e032e@birger-koblitz.de
Changes in v13:
- Add MODULE_ALIAS to ax88179_178a
- Squashed commit adding netdev2data() into the first one needing it
- Add wrappers ax88179_write_u8/ax88179_write_u16
- Use FIELD_GET() FIELD_PREP() in fixups.
- Add guard for phydev->drv NULL in phy_ethtool_ksettings_set()
- Various endianess fixes in fixups
- Add error checking for too small packets in ax88179a_rx_fixup
- Typo fixed: ax88179_read_cmd -> ax88179_write_cmd setting PHY power
- Changed call to usbnet_nway_reset by phy_ethtool_nway_reset
- ax88179a_bulkin_config() handles FS USB now for all chip versions
- Use phylink versions of calls for get/set_link_ksettings
- Add handling of return values of ax88179_read_cmd() in various places
- Removed usbnet_link_change(dev, 0, 0); at the end of ax88179a_reset().
- Add RTLN-lock to protect AX_MEDIUM_STATUS_MODE register,
WRITE_ONCE/READONCE for rxctl.
- Changed to clearing AX_XGMII_EN for all speeds != SPEED_2500 independent
of chip-id.
- Fix access to AX88179A_MAC_RX_DATA_CDC_CNT by using 2 1-byte writes.
- In ax88179a_mac_link_up initialize link_status.
- Added setting of AX_GPHY_EEE_CTRL to disabled in ax88179a_reset(),
consistent with phylink default.
- Various commit messages fixed
- Conditionally set AX_VLAN_CONTROL_VFE after loop over the VLAN-entries
- Moved code in wrong commits to the right ones (2x).
- Fix races around rx_checksum flag setting.
- Suspend/resume fixes: correct sequence of WoL settings and usbnet/phylink
suspend calls.
- Read revision number into the 4th field of software version
- Kconfig descriptiona and module description mention 2.5GBit
- Fix orphaned defconfigs
- Fix EEPROM access settings derived from chip versions
- Fix EEPROM read error checking
- Return value checking in asix_ax88279_read_status()
- Added clearing of ETHTOOL_LINK_MODE_2500baseT_Full_BIT in lp_advertising
before modifying the bit.
- In asix_ax88279_read_status() add if (!phydev->link) guard
- Linkmode cleaning code shortened.
- Link to v12: https://lore.kernel.org/r/20260916-ax88179a-v12-0-60c04c9924a2@birger-koblitz.de
Changes in v12:
- Fix BCD ranges for USB device detection
- Free SKB in ax88179a_tx_fixup() when skb_linearize() fails
- Use phylink_mii_ioctl instead of usbnet_mii_ioctl
- Link to v11: https://lore.kernel.org/r/20260914-ax88179a-v11-0-5ea7a925ba6d@birger-koblitz.de
Changes in v11:
- Fix sparse warnings
- Link to v10: https://lore.kernel.org/r/20260904-ax88179a-v10-0-b5e60eca7690@birger-koblitz.de
Changes in v10:
- Fix missing variable declaration in ax88179a_status()
- Add reviewed-bys
- Link to v9: https://lore.kernel.org/r/20260902-ax88179a-v9-0-8e6d7710a2ae@birger-koblitz.de
Changes in v9:
- Fix ax88179a_status() to not call carrier-related netif or usbnet methods
- Use genphy_read_mmd_c45() and genphy_write_mmd_c45()
- Link to v8: https://lore.kernel.org/r/20260831-ax88179a-v8-0-de905f2ee426@birger-koblitz.de
Changes in v8:
- Fix resume sequence as Suggested-by: Jianhui Xu <neuromoments@gmail.com>
- Add handling of PHYs with broken forced mode in phylib to handle AX88279 PHY
- Multple formatting fixes
- Fix transiently unused functions ax88179a_mac_disable_tx_lpi() and
ax88179a_mac_enable_tx_lpi()
- Removed unnecessary checks for dev initialized
- Link to v7: https://lore.kernel.org/r/20260810-ax88179a-v7-0-da633191c129@birger-koblitz.de
Changes in v7:
- Add phylink_mac_interrupt() function to phylink and stop
polling the PHY to prevent a race condition between the controller
and phylink when configuring a new link.
- Fix typo in ax88179_read_cmd Reported-by: Jianhui Xu <neuromoments@gmail.com>
- Return -EOPNOTSUPP in asix_ax88279_config_aneg when autoneg is being disabled
- Link to v6: https://lore.kernel.org/r/20260806-ax88179a-v6-0-fde7414619e6@birger-koblitz.de
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@birger-koblitz.de
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@birger-koblitz.de
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@birger-koblitz.de
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@birger-koblitz.de
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 <lkp@intel.com>
- Avoid white-space changes
- Link to v1: https://lore.kernel.org/r/20260701-ax88179a-v1-0-13685df67515@birger-koblitz.de
---
Birger Koblitz (13):
phylink: Add phylink_mac_interrupt
phylib: Add support for PHYs with broken forced mode
ax88179_178a: Split driver into library and device specific code
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 +
arch/loongarch/configs/loongson32_defconfig | 2 +-
arch/loongarch/configs/loongson64_defconfig | 2 +-
drivers/net/phy/ax88796b.c | 167 ++++
drivers/net/phy/phy.c | 4 +
drivers/net/phy/phylink.c | 20 +
drivers/net/usb/Kconfig | 10 +-
drivers/net/usb/Makefile | 3 +-
drivers/net/usb/ax88179_178a.c | 660 +-------------
drivers/net/usb/ax88179_lib.c | 530 +++++++++++
drivers/net/usb/ax88179_lib.h | 359 ++++++++
drivers/net/usb/ax88179a_devices.c | 1285 +++++++++++++++++++++++++++
include/linux/phy.h | 1 +
include/linux/phylink.h | 1 +
14 files changed, 2427 insertions(+), 623 deletions(-)
---
base-commit: 071876fd50482a68603a9460d80dd6dd58827ee1
change-id: 20260630-ax88179a-a1d89fe21730
Best regards,
--
Birger Koblitz <mail@birger-koblitz.de>