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([2a0d:3344:5521:6b10:58fd:68f:7756:389d]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47aa0a558easm32340161f8f.27.2026.07.07.02.11.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jul 2026 02:11:32 -0700 (PDT) Message-ID: <0b75cedb-691f-44ca-891c-d42d5cd24fd2@redhat.com> Date: Tue, 7 Jul 2026 11:11:31 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/9] ax88179_178a: Add HW support for AX179A-based chips To: Birger Koblitz , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski Cc: linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260701-ax88179a-v1-0-13685df67515@birger-koblitz.de> <20260701-ax88179a-v1-2-13685df67515@birger-koblitz.de> From: Paolo Abeni Content-Language: en-US In-Reply-To: <20260701-ax88179a-v1-2-13685df67515@birger-koblitz.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 7/1/26 7:42 AM, Birger Koblitz wrote: > static int ax88179_reset(struct usbnet *dev) > { > - u8 buf[5]; > - u16 *tmp16; > - u8 *tmp; > struct ax88179_data *ax179_data = dev->driver_priv; > struct ethtool_keee eee_data; > + u16 *tmp16; > + u8 buf[5]; > + u8 *tmp; > > tmp16 = (u16 *)buf; > tmp = (u8 *)buf; > > /* Power up ethernet PHY */ > - *tmp16 = 0; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); > + if (ax179_data->chip_version < AX_VERSION_AX88179A) { > + *tmp16 = 0; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); > > - *tmp16 = AX_PHYPWR_RSTCTL_IPRL; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); > - msleep(500); > + *tmp16 = AX_PHYPWR_RSTCTL_IPRL; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16); > + msleep(500); > > - *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp); > - msleep(200); > + *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp); > + msleep(200); > + } else { > + *tmp = AX_PHY_POWER; > + ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, tmp); > + msleep(250); > + } > + > + if (ax179_data->chip_version == AX_VERSION_AX88279) { > + *tmp16 = ax88179_mdio_read(dev->net, dev->mii.phy_id, MII_ADVERTISE); > + *tmp16 &= ~(ADVERTISE_10FULL | ADVERTISE_10HALF); > + *tmp16 |= ADVERTISE_RESV; /* Advertise 2.5GBit link */ > + ax88179_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, *tmp16); > + } > > /* Ethernet PHY Auto Detach*/ > ax88179_auto_detach(dev); > > + if (ax179_data->chip_version >= AX_VERSION_AX88179A) { > + *tmp = AX_MAC_EFF_EN; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BULK_OUT_CTRL, 1, 1, tmp); > + > + *tmp16 = 0; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16); > + > + *tmp = 0x04; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp); > + *tmp = 0x10; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp); > + > + *tmp = 0; > + if (dev->net->features & NETIF_F_HW_VLAN_CTAG_FILTER) > + *tmp |= AX_VLAN_CONTROL_VFE; Does not build successfully: ../drivers/net/usb/ax88179_178a.c: In function ‘ax88179_reset’: ../drivers/net/usb/ax88179_178a.c:2376:33: error: ‘AX_VLAN_CONTROL_VFE’ undeclared (first use in this function) 2376 | *tmp |= AX_VLAN_CONTROL_VFE; Full log here: https://netdev-ctrl.bots.linux.dev/logs/build/1119419/14655119/build_32bit/stderr Side process note: the patch series shoudl include the target tree ('net-next' in this case). /P > + if (dev->net->features & NETIF_F_HW_VLAN_CTAG_RX) > + *tmp |= AX_VLAN_CONTROL_VSO; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, tmp); > + > + *tmp = 0xff; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_INT_MASK, 1, 1, tmp); > + > + *tmp = 0; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_RX_DMA_CTL, 1, 1, tmp); > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_TX_DMA_CTL, 1, 1, tmp); > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_ARC_CTRL, 1, 1, tmp); > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_SWP_CTRL, 1, 1, tmp); > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_TX_HDR_CKSUM, 1, 1, tmp); > + } > + > /* Read MAC address from DTB or asix chip */ > ax88179_get_mac_addr(dev); > memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN); > > /* RX bulk configuration */ > - memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp); > - > - dev->rx_urb_size = 1024 * 20; > - > - *tmp = 0x34; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp); > - > - *tmp = 0x52; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp); > + if (ax179_data->chip_version < AX_VERSION_AX88179A) { > + memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5); > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp); > + *tmp = 0x34; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp); > + > + *tmp = 0x52; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, > + 1, 1, tmp); > + dev->rx_urb_size = 1024 * 20; > + } else { > + /* The Bulk-Register configuration for the AX88179A is done in > + * ax88179a_link_reset(), once the link is up for a given link and USB-speed. > + */ > + if (ax179_data->is_ax88772d) > + dev->rx_urb_size = 1024 * 24; > + else > + dev->rx_urb_size = 1024 * 48; > + } > > /* Enable checksum offload */ > *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP | > AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6; > ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp); > + ax179_data->rx_checksum = 1; > > *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP | > AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6; > ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp); > > /* Configure RX control register => start operation */ > - *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START | > - AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16); > - > - *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL | > - AX_MONITOR_MODE_RWMP; > + ax179_data->rxctl = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_START | > + AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB; > + if (ax179_data->ip_align) > + ax179_data->rxctl |= AX_RX_CTL_IPE; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &ax179_data->rxctl); > + > + if (ax179_data->chip_version < AX_VERSION_AX88179A) > + *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL | AX_MONITOR_MODE_RWMP; > + else > + *tmp = AX_MONITOR_MODE_RWMP; > ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp); > > /* Configure default medium type => giga */ > *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | > - AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX | > - AX_MEDIUM_GIGAMODE; > - ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, > - 2, 2, tmp16); > + AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX; > + if (!ax179_data->is_ax88772d) > + *tmp16 |= AX_MEDIUM_GIGAMODE; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16); > > /* Check if WoL is supported */ > ax179_data->wol_supported = 0; > @@ -1653,7 +2450,11 @@ static int ax88179_reset(struct usbnet *dev) > 1, 1, &tmp) > 0) > ax179_data->wol_supported = WAKE_MAGIC | WAKE_PHY; > > - ax88179_led_setting(dev); > + /* For chips starting with AX88179A, LEDS are configured by the adapter > + * firmware directly from EEPROM/EFUSE values > + */ > + if (ax179_data->chip_version < AX_VERSION_AX88179A) > + ax88179_led_setting(dev); > > ax179_data->eee_enabled = 0; > ax179_data->eee_active = 0; > @@ -1706,6 +2507,24 @@ static int ax88179_stop(struct usbnet *dev) > return 0; > } > > +static int ax88179a_stop(struct usbnet *dev) > +{ > + u16 reg16; > + u8 reg8; > + > + ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, ®16); > + reg16 &= ~AX_MEDIUM_RECEIVE_EN; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, ®16); > + > + reg16 = 0; > + ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, ®16); > + > + reg8 = 0; > + ax88179_read_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8); > + > + return 0; > +} > + > static const struct driver_info ax88179_info = { > .description = "ASIX AX88179 USB 3.0 Gigabit Ethernet", > .bind = ax88179_bind, > @@ -1732,6 +2551,45 @@ static const struct driver_info ax88178a_info = { > .tx_fixup = ax88179_tx_fixup, > }; > > +static const struct driver_info ax88179a_info = { > + .description = "ASIX AX88179A USB 3.2 Gigabit Ethernet", > + .bind = ax88179a_bind, > + .unbind = ax88179a_unbind, > + .status = ax88179_status, > + .link_reset = ax88179a_link_reset, > + .reset = ax88179_reset, > + .stop = ax88179a_stop, > + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS, > + .rx_fixup = ax88179a_rx_fixup, > + .tx_fixup = ax88179a_tx_fixup, > +}; > + > +static const struct driver_info ax88772d_info = { > + .description = "ASIX AX88772D/E USB 2.0 Fast Ethernet", > + .bind = ax88179a_bind, > + .unbind = ax88179a_unbind, > + .status = ax88179_status, > + .link_reset = ax88179a_link_reset, > + .reset = ax88179_reset, > + .stop = ax88179a_stop, > + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS, > + .rx_fixup = ax88179a_rx_fixup, > + .tx_fixup = ax88179a_tx_fixup, > +}; > + > +static const struct driver_info ax88279_info = { > + .description = "ASIX AX88279 USB 3.2 2.5Gigabit Ethernet", > + .bind = ax88179a_bind, > + .unbind = ax88179a_unbind, > + .status = ax88179_status, > + .link_reset = ax88179a_link_reset, > + .reset = ax88179_reset, > + .stop = ax88179a_stop, > + .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS, > + .rx_fixup = ax88179a_rx_fixup, > + .tx_fixup = ax88179a_tx_fixup, > +}; > + > static const struct driver_info cypress_GX3_info = { > .description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller", > .bind = ax88179_bind, > @@ -1877,6 +2735,18 @@ static const struct driver_info at_umc2000sp_info = { > > static const struct usb_device_id products[] = { > { > + /* ASIX AX88179A/B USB 3.2 Gigabit Ethernet */ > + USB_DEVICE_VER(0x0b95, 0x1790, 0x0200, 0x0200), > + .driver_info = (unsigned long)&ax88179a_info, > +}, { > + /* ASIX AX88772D USB 2.0 100Mbit Ethernet */ > + USB_DEVICE_VER(0x0b95, 0x1790, 0x0300, 0x0300), > + .driver_info = (unsigned long)&ax88772d_info, > +}, { > + /* ASIX AX88279 USB 3.2 2.5GBit Ethernet */ > + USB_DEVICE_VER(0x0b95, 0x1790, 0x0400, 0x0400), > + .driver_info = (unsigned long)&ax88279_info, > +}, { > /* ASIX AX88179 10/100/1000 */ > USB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x1790, 0xff, 0xff, 0), > .driver_info = (unsigned long)&ax88179_info, >