| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/09/03 13:35 | flow | patch-triage |
1mArgs:null Results: {
"EnableConfigs": [
"USB_NET_AX88179",
"USB_USBNET",
"AX88796B_PHY",
"PHYLINK"
],
"FocusSymbols": [
"ax88179a_rx_fixup",
"ax88179a_tx_fixup",
"ax88179a_bind",
"ax88179a_reset",
"ax88179a_set_features",
"ax88179a_mac_link_up",
"asix_ax88279_read_status",
"asix_ax88279_config_aneg",
"asix_ax88772D_get_features",
"phylink_mac_interrupt"
],
"KMSANReasoning": "The patch series adds support for ASIX AX88179A, AX88772D, and AX88279 USB Ethernet adapters and their internal PHYs, refactoring common functionality into a shared library.\n\nA KMSAN fuzzing session is not needed for the following reasons:\n1. All dynamically allocated kernel structures and buffers (such as `struct ax88179_data` via `kzalloc`/`kzalloc_obj`, and EEPROM query buffers via `kzalloc`) are explicitly zero-initialized upon allocation.\n2. In the packet transmission path (`ax88179a_tx_fixup`), SKB padding is explicitly cleared with `skb_put_zero`, avoiding info-leaks of kernel stack/heap memory onto the wire.\n3. In the packet reception path (`ax88179a_rx_fixup`), strict length, descriptor offset, and packet count validations prevent out-of-bounds reads and ensure only valid received payload bytes are copied to returned SKBs.\n4. User-visible data paths (ethtool ops, phylink callbacks) operate on fully initialized structures or delegate to standard kernel helpers.\n5. Any potential memory-safety risks in the changes (e.g. buffer parsing or pointer handling) fall under spatial safety or life-cycle management, which are covered by standard KASAN.",
"NeedsKMSAN": false,
"Reasoning": "The patch adds support for new ASIX USB Ethernet devices (AX88179A, AX88772D, AX88279) along with PHY drivers, phylink integration, packet handling (rx_fixup / tx_fixup), and VLAN / feature configuration. This executable kernel code is fully reachable in standard QEMU environments via USB emulation and gadget fuzzing.",
"WorthFuzzing": true
} |
| 1/1 | 2026/09/03 13:35 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 8c372c361593da59a5e99b946b127757729ad34e\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Thu Sep 3 13:35:40 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/MAINTAINERS b/MAINTAINERS\nindex 0b42e898f4d8e..442e8ea3ca04e 100644\n--- a/MAINTAINERS\n+++ b/MAINTAINERS\n@@ -4020,6 +4020,12 @@ S:\tMaintained\n F:\tDocumentation/devicetree/bindings/net/asix,ax88796c.yaml\n F:\tdrivers/net/ethernet/asix/ax88796c_*\n \n+ASIX AX88179 USB ETHERNET DRIVER\n+M:\tBirger Koblitz \u003cmail@birger-koblitz.de\u003e\n+L:\tnetdev@vger.kernel.org\n+S:\tMaintained\n+F:\tdrivers/net/usb/ax88179*\n+\n ASIX PHY DRIVER [RUST]\n M:\tFUJITA Tomonori \u003cfujita.tomonori@gmail.com\u003e\n R:\tTrevor Gross \u003ctmgross@umich.edu\u003e\ndiff --git a/drivers/net/phy/ax88796b.c b/drivers/net/phy/ax88796b.c\nindex f20ddf6491499..62f6beb25f41e 100644\n--- a/drivers/net/phy/ax88796b.c\n+++ b/drivers/net/phy/ax88796b.c\n@@ -13,6 +13,19 @@\n #define PHY_ID_ASIX_AX88772A\t\t0x003b1861\n #define PHY_ID_ASIX_AX88772C\t\t0x003b1881\n #define PHY_ID_ASIX_AX88796B\t\t0x003b1841\n+#define PHY_ID_ASIX_AX88772D\t\t0x003b772d\n+#define PHY_ID_ASIX_AX88179A\t\t0x003b179a\n+#define PHY_ID_ASIX_AX88279\t\t0x003b2790\n+\n+#define AX_ADVERTISE_2500\t\t0x1000\n+\n+/* MII Vendor registers */\n+#define AX_CTRL_STATUS\t\t\t0x1d\n+#define AX_CTRL_STATUS_SPEED_MASK\t0x0c\n+#define AX_CTRL_STATUS_SPEED_10\t0x0\n+#define AX_CTRL_STATUS_SPEED_100\t0x4\n+#define AX_CTRL_STATUS_SPEED_1000\t0x8\n+#define AX_CTRL_STATUS_SPEED_2500\t0xc\n \n MODULE_DESCRIPTION(\"Asix PHY driver\");\n MODULE_AUTHOR(\"Michael Schmitz \u003cschmitzmic@gmail.com\u003e\");\n@@ -83,6 +96,103 @@ static int asix_ax88772a_read_status(struct phy_device *phydev)\n \treturn 0;\n }\n \n+static int asix_ax88279_read_status(struct phy_device *phydev)\n+{\n+\tint ret, val;\n+\n+\tret = genphy_read_status(phydev);\n+\tif (ret)\n+\t\treturn ret;\n+\n+\t/* Read actual speed from vendor register */\n+\tval = phy_read(phydev, AX_CTRL_STATUS);\n+\tswitch (val \u0026 AX_CTRL_STATUS_SPEED_MASK) {\n+\tcase AX_CTRL_STATUS_SPEED_2500:\n+\t\tphydev-\u003espeed = SPEED_2500;\n+\t\tbreak;\n+\tcase AX_CTRL_STATUS_SPEED_1000:\n+\t\tphydev-\u003espeed = SPEED_1000;\n+\t\tbreak;\n+\tcase AX_CTRL_STATUS_SPEED_100:\n+\t\tphydev-\u003espeed = SPEED_100;\n+\t\tbreak;\n+\tcase AX_CTRL_STATUS_SPEED_10:\n+\t\tphydev-\u003espeed = SPEED_10;\n+\t}\n+\n+\t/* MDIO_AN_10GBT_STAT_LP2_5G is broken, but we can deduce that\n+\t * the link-partner advertised 2500M if remotely AN succceded\n+\t * for link speed \u003e 1000M and we locally have a link speed of\n+\t * 2500M\n+\t */\n+\tval = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);\n+\tif (val \u003e= 0 \u0026\u0026 val \u0026 MDIO_AN_10GBT_STAT_REMOK) {\n+\t\tlinkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,\n+\t\t\t\t phydev-\u003elp_advertising,\n+\t\t\t\t phydev-\u003espeed == SPEED_2500);\n+\t}\n+\t/* Only supports full duplex */\n+\tphydev-\u003eduplex = DUPLEX_FULL;\n+\n+\t/* PHY switches interface between 2.5GBit and slower modes */\n+\tif (phydev-\u003espeed == SPEED_2500)\n+\t\tphydev-\u003einterface = PHY_INTERFACE_MODE_2500BASEX;\n+\telse\n+\t\tphydev-\u003einterface = PHY_INTERFACE_MODE_SGMII;\n+\n+\treturn 0;\n+}\n+\n+static int asix_ax88279_config_aneg(struct phy_device *phydev)\n+{\n+\tbool adv_2500;\n+\tint ret;\n+\n+\tif (phydev-\u003eautoneg == AUTONEG_DISABLE) {\n+\t\tphydev_warn(phydev, \"Disabling autoneg is not supported\\n\");\n+\t\treturn -EOPNOTSUPP;\n+\t}\n+\n+\tret = genphy_config_aneg(phydev);\n+\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\tadv_2500 = linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev-\u003eadvertising);\n+\tret = phy_modify(phydev, MII_ADVERTISE, AX_ADVERTISE_2500,\n+\t\t\t adv_2500 ? AX_ADVERTISE_2500 : 0);\n+\n+\treturn ret;\n+}\n+\n+static int asix_ax88279_get_features(struct phy_device *phydev)\n+{\n+\tint ret;\n+\n+\t/* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */\n+\tphydev-\u003ec45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;\n+\n+\tlinkmode_set_bit_array(phy_basic_ports_array, ARRAY_SIZE(phy_basic_ports_array),\n+\t\t\t phydev-\u003esupported);\n+\n+\tret = genphy_c45_pma_read_abilities(phydev);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\t/* AX88279 does not support reported 100baseT-half duplex mode */\n+\tlinkmode_clear_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, phydev-\u003esupported);\n+\n+\treturn 0;\n+}\n+\n+static int asix_ax88279_config_init(struct phy_device *phydev)\n+{\n+\t__set_bit(PHY_INTERFACE_MODE_2500BASEX, phydev-\u003epossible_interfaces);\n+\t__set_bit(PHY_INTERFACE_MODE_SGMII, phydev-\u003epossible_interfaces);\n+\n+\treturn 0;\n+}\n+\n static void asix_ax88772a_link_change_notify(struct phy_device *phydev)\n {\n \t/* Reset PHY, otherwise MII_LPA will provide outdated information.\n@@ -94,6 +204,25 @@ static void asix_ax88772a_link_change_notify(struct phy_device *phydev)\n \t}\n }\n \n+static int asix_ax88772D_get_features(struct phy_device *phydev)\n+{\n+\tint ret;\n+\t__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};\n+\n+\t/* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */\n+\tphydev-\u003ec45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;\n+\n+\tret = genphy_read_abilities(phydev);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\t/* AX88772D does not support reported 1000baseT mode */\n+\tlinkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, mask);\n+\tlinkmode_andnot(phydev-\u003esupported, phydev-\u003esupported, mask);\n+\n+\treturn 0;\n+}\n+\n static struct phy_driver asix_driver[] = {\n {\n \tPHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A),\n@@ -111,6 +240,35 @@ static struct phy_driver asix_driver[] = {\n \t.suspend\t= genphy_suspend,\n \t.resume\t\t= genphy_resume,\n \t.soft_reset\t= asix_soft_reset,\n+}, {\n+\tPHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D),\n+\t.name\t\t= \"Asix Electronics AX88772D\",\n+\t.flags\t\t= PHY_IS_INTERNAL,\n+\t.get_features\t= asix_ax88772D_get_features,\n+\t.read_mmd\t= genphy_read_mmd_c45,\n+\t.write_mmd\t= genphy_write_mmd_c45,\n+\t.suspend\t= genphy_suspend,\n+\t.resume\t\t= genphy_resume,\n+}, {\n+\tPHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A),\n+\t.name\t\t= \"Asix Electronics AX88179A\",\n+\t.flags\t\t= PHY_IS_INTERNAL,\n+\t.suspend\t= genphy_suspend,\n+\t.resume\t\t= genphy_resume,\n+\t.read_mmd\t= genphy_read_mmd_c45,\n+\t.write_mmd\t= genphy_write_mmd_c45,\n+}, {\n+\tPHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279),\n+\t.name\t\t= \"Asix Electronics AX88279\",\n+\t.flags\t\t= PHY_IS_INTERNAL | PHY_BROKEN_FORCED,\n+\t.get_features\t= asix_ax88279_get_features,\n+\t.read_status\t= asix_ax88279_read_status,\n+\t.config_aneg\t= asix_ax88279_config_aneg,\n+\t.config_init\t= asix_ax88279_config_init,\n+\t.read_mmd\t= genphy_read_mmd_c45,\n+\t.write_mmd\t= genphy_write_mmd_c45,\n+\t.suspend\t= genphy_suspend,\n+\t.resume\t\t= genphy_resume,\n }, {\n \tPHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B),\n \t.name\t\t= \"Asix Electronics AX88796B\",\n@@ -124,6 +282,9 @@ static const struct mdio_device_id __maybe_unused asix_tbl[] = {\n \t{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A) },\n \t{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772C) },\n \t{ PHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B) },\n+\t{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D) },\n+\t{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A) },\n+\t{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279) },\n \t{ }\n };\n \ndiff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c\nindex fce9bc7be3304..b83f938fe7c3b 100644\n--- a/drivers/net/phy/phy.c\n+++ b/drivers/net/phy/phy.c\n@@ -1190,6 +1190,10 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,\n \t duplex != DUPLEX_FULL)))\n \t\treturn -EINVAL;\n \n+\tif (autoneg == AUTONEG_DISABLE \u0026\u0026\n+\t (phydev-\u003edrv-\u003eflags \u0026 PHY_BROKEN_FORCED))\n+\t\treturn -EOPNOTSUPP;\n+\n \tmutex_lock(\u0026phydev-\u003elock);\n \tphydev-\u003eautoneg = autoneg;\n \ndiff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c\nindex 3ec3bb4391095..96ed13458e9f3 100644\n--- a/drivers/net/phy/phylink.c\n+++ b/drivers/net/phy/phylink.c\n@@ -1612,6 +1612,22 @@ static bool phylink_link_is_up(struct phylink *pl)\n \treturn pl-\u003enetdev ? netif_carrier_ok(pl-\u003enetdev) : pl-\u003eold_link_state;\n }\n \n+/**\n+ * phylink_mac_interrupt() - wrapper for phy_mac_interrupt()\n+ * @pl: a pointer to a \u0026struct phylink returned from phylink_create()\n+ *\n+ * Passes a link-change interrupt received by the MAC to phylib.\n+ */\n+void phylink_mac_interrupt(struct phylink *pl)\n+{\n+\tstruct phy_device *phy;\n+\n+\tphy = pl-\u003ephydev;\n+\tif (phy)\n+\t\tphy_mac_interrupt(phy);\n+}\n+EXPORT_SYMBOL_GPL(phylink_mac_interrupt);\n+\n static void phylink_resolve(struct work_struct *w)\n {\n \tstruct phylink *pl = container_of(w, struct phylink, resolve);\ndiff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig\nindex 52a5c0922c79f..4158455a2da76 100644\n--- a/drivers/net/usb/Kconfig\n+++ b/drivers/net/usb/Kconfig\n@@ -195,11 +195,12 @@ config USB_NET_AX8817X\n \t This driver creates an interface named \"ethX\", where X depends on\n \t what other networking devices you have in use.\n \n-config USB_NET_AX88179_178A\n-\ttristate \"ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet\"\n+config USB_NET_AX88179\n+\ttristate \"ASIX AX88179/179A/178A USB 3.0/2.0 to Gigabit Ethernet\"\n \tdepends on USB_USBNET\n+\tselect PHYLINK\n+\tselect AX88796B_PHY\n \tselect CRC32\n-\tselect PHYLIB\n \tdefault y\n \thelp\n \t This option adds support for ASIX AX88179 based USB 3.0/2.0\n@@ -207,6 +208,9 @@ config USB_NET_AX88179_178A\n \n \t This driver should work with at least the following devices:\n \t * ASIX AX88179\n+\t * ASIX AX88179A/B\n+\t * ASIX AX88279\n+\t * ASIX AX88772D/E\n \t * ASIX AX88178A\n \t * Sitcomm LN-032\n \ndiff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile\nindex 4964f7b326fbc..4026f19ecb826 100644\n--- a/drivers/net/usb/Makefile\n+++ b/drivers/net/usb/Makefile\n@@ -12,7 +12,8 @@ obj-$(CONFIG_USB_HSO)\t\t+= hso.o\n obj-$(CONFIG_USB_LAN78XX)\t+= lan78xx.o\n obj-$(CONFIG_USB_NET_AX8817X)\t+= asix.o\n asix-y := asix_devices.o asix_common.o ax88172a.o\n-obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o\n+obj-$(CONFIG_USB_NET_AX88179) += ax88179.o\n+ax88179-y := ax88179_178a.o ax88179a_devices.o ax88179_lib.o\n obj-$(CONFIG_USB_NET_CDCETHER)\t+= cdc_ether.o\n obj-$(CONFIG_USB_NET_CDC_EEM)\t+= cdc_eem.o\n obj-$(CONFIG_USB_NET_DM9601)\t+= dm9601.o\ndiff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c\nindex 81d8412ce8e2f..55564aa0ca63f 100644\n--- a/drivers/net/usb/ax88179_178a.c\n+++ b/drivers/net/usb/ax88179_178a.c\n@@ -8,179 +8,12 @@\n #include \u003clinux/module.h\u003e\n #include \u003clinux/etherdevice.h\u003e\n #include \u003clinux/mii.h\u003e\n-#include \u003clinux/usb.h\u003e\n-#include \u003clinux/crc32.h\u003e\n-#include \u003clinux/usb/usbnet.h\u003e\n #include \u003cuapi/linux/mdio.h\u003e\n #include \u003clinux/mdio.h\u003e\n-\n-#define AX88179_PHY_ID\t\t\t\t0x03\n-#define AX_EEPROM_LEN\t\t\t\t0x100\n-#define AX88179_EEPROM_MAGIC\t\t\t0x17900b95\n-#define AX_MCAST_FLTSIZE\t\t\t8\n-#define AX_MAX_MCAST\t\t\t\t64\n-#define AX_INT_PPLS_LINK\t\t\t((u32)BIT(16))\n-#define AX_RXHDR_L4_TYPE_MASK\t\t\t0x1c\n-#define AX_RXHDR_L4_TYPE_UDP\t\t\t4\n-#define AX_RXHDR_L4_TYPE_TCP\t\t\t16\n-#define AX_RXHDR_L3CSUM_ERR\t\t\t2\n-#define AX_RXHDR_L4CSUM_ERR\t\t\t1\n-#define AX_RXHDR_CRC_ERR\t\t\t((u32)BIT(29))\n-#define AX_RXHDR_DROP_ERR\t\t\t((u32)BIT(31))\n-#define AX_ACCESS_MAC\t\t\t\t0x01\n-#define AX_ACCESS_PHY\t\t\t\t0x02\n-#define AX_ACCESS_EEPROM\t\t\t0x04\n-#define AX_ACCESS_EFUS\t\t\t\t0x05\n-#define AX_RELOAD_EEPROM_EFUSE\t\t\t0x06\n-#define AX_PAUSE_WATERLVL_HIGH\t\t\t0x54\n-#define AX_PAUSE_WATERLVL_LOW\t\t\t0x55\n-\n-#define PHYSICAL_LINK_STATUS\t\t\t0x02\n-\t#define\tAX_USB_SS\t\t0x04\n-\t#define\tAX_USB_HS\t\t0x02\n-\n-#define GENERAL_STATUS\t\t\t\t0x03\n-/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */\n-\t#define\tAX_SECLD\t\t0x04\n-\n-#define AX_SROM_ADDR\t\t\t\t0x07\n-#define AX_SROM_CMD\t\t\t\t0x0a\n-\t#define EEP_RD\t\t\t0x04\n-\t#define EEP_BUSY\t\t0x10\n-\n-#define AX_SROM_DATA_LOW\t\t\t0x08\n-#define AX_SROM_DATA_HIGH\t\t\t0x09\n-\n-#define AX_RX_CTL\t\t\t\t0x0b\n-\t#define AX_RX_CTL_DROPCRCERR\t0x0100\n-\t#define AX_RX_CTL_IPE\t\t0x0200\n-\t#define AX_RX_CTL_START\t\t0x0080\n-\t#define AX_RX_CTL_AP\t\t0x0020\n-\t#define AX_RX_CTL_AM\t\t0x0010\n-\t#define AX_RX_CTL_AB\t\t0x0008\n-\t#define AX_RX_CTL_AMALL\t\t0x0002\n-\t#define AX_RX_CTL_PRO\t\t0x0001\n-\t#define AX_RX_CTL_STOP\t\t0x0000\n-\n-#define AX_NODE_ID\t\t\t\t0x10\n-#define AX_MULFLTARY\t\t\t\t0x16\n-\n-#define AX_MEDIUM_STATUS_MODE\t\t\t0x22\n-\t#define AX_MEDIUM_GIGAMODE\t0x01\n-\t#define AX_MEDIUM_FULL_DUPLEX\t0x02\n-\t#define AX_MEDIUM_EN_125MHZ\t0x08\n-\t#define AX_MEDIUM_RXFLOW_CTRLEN\t0x10\n-\t#define AX_MEDIUM_TXFLOW_CTRLEN\t0x20\n-\t#define AX_MEDIUM_RECEIVE_EN\t0x100\n-\t#define AX_MEDIUM_PS\t\t0x200\n-\t#define AX_MEDIUM_JUMBO_EN\t0x8040\n-\n-#define AX_MONITOR_MOD\t\t\t\t0x24\n-\t#define AX_MONITOR_MODE_RWLC\t0x02\n-\t#define AX_MONITOR_MODE_RWMP\t0x04\n-\t#define AX_MONITOR_MODE_PMEPOL\t0x20\n-\t#define AX_MONITOR_MODE_PMETYPE\t0x40\n-\n-#define AX_GPIO_CTRL\t\t\t\t0x25\n-\t#define AX_GPIO_CTRL_GPIO3EN\t0x80\n-\t#define AX_GPIO_CTRL_GPIO2EN\t0x40\n-\t#define AX_GPIO_CTRL_GPIO1EN\t0x20\n-\n-#define AX_PHYPWR_RSTCTL\t\t\t0x26\n-\t#define AX_PHYPWR_RSTCTL_BZ\t0x0010\n-\t#define AX_PHYPWR_RSTCTL_IPRL\t0x0020\n-\t#define AX_PHYPWR_RSTCTL_AT\t0x1000\n-\n-#define AX_RX_BULKIN_QCTRL\t\t\t0x2e\n-#define AX_CLK_SELECT\t\t\t\t0x33\n-\t#define AX_CLK_SELECT_BCS\t0x01\n-\t#define AX_CLK_SELECT_ACS\t0x02\n-\t#define AX_CLK_SELECT_ULR\t0x08\n-\n-#define AX_RXCOE_CTL\t\t\t\t0x34\n-\t#define AX_RXCOE_IP\t\t0x01\n-\t#define AX_RXCOE_TCP\t\t0x02\n-\t#define AX_RXCOE_UDP\t\t0x04\n-\t#define AX_RXCOE_TCPV6\t\t0x20\n-\t#define AX_RXCOE_UDPV6\t\t0x40\n-\n-#define AX_TXCOE_CTL\t\t\t\t0x35\n-\t#define AX_TXCOE_IP\t\t0x01\n-\t#define AX_TXCOE_TCP\t\t0x02\n-\t#define AX_TXCOE_UDP\t\t0x04\n-\t#define AX_TXCOE_TCPV6\t\t0x20\n-\t#define AX_TXCOE_UDPV6\t\t0x40\n-\n-#define AX_LEDCTRL\t\t\t\t0x73\n-\n-#define GMII_PHY_PHYSR\t\t\t\t0x11\n-\t#define GMII_PHY_PHYSR_SMASK\t0xc000\n-\t#define GMII_PHY_PHYSR_GIGA\t0x8000\n-\t#define GMII_PHY_PHYSR_100\t0x4000\n-\t#define GMII_PHY_PHYSR_FULL\t0x2000\n-\t#define GMII_PHY_PHYSR_LINK\t0x400\n-\n-#define GMII_LED_ACT\t\t\t\t0x1a\n-\t#define\tGMII_LED_ACTIVE_MASK\t0xff8f\n-\t#define\tGMII_LED0_ACTIVE\tBIT(4)\n-\t#define\tGMII_LED1_ACTIVE\tBIT(5)\n-\t#define\tGMII_LED2_ACTIVE\tBIT(6)\n-\n-#define GMII_LED_LINK\t\t\t\t0x1c\n-\t#define\tGMII_LED_LINK_MASK\t0xf888\n-\t#define\tGMII_LED0_LINK_10\tBIT(0)\n-\t#define\tGMII_LED0_LINK_100\tBIT(1)\n-\t#define\tGMII_LED0_LINK_1000\tBIT(2)\n-\t#define\tGMII_LED1_LINK_10\tBIT(4)\n-\t#define\tGMII_LED1_LINK_100\tBIT(5)\n-\t#define\tGMII_LED1_LINK_1000\tBIT(6)\n-\t#define\tGMII_LED2_LINK_10\tBIT(8)\n-\t#define\tGMII_LED2_LINK_100\tBIT(9)\n-\t#define\tGMII_LED2_LINK_1000\tBIT(10)\n-\t#define\tLED0_ACTIVE\t\tBIT(0)\n-\t#define\tLED0_LINK_10\t\tBIT(1)\n-\t#define\tLED0_LINK_100\t\tBIT(2)\n-\t#define\tLED0_LINK_1000\t\tBIT(3)\n-\t#define\tLED0_FD\t\t\tBIT(4)\n-\t#define\tLED0_USB3_MASK\t\t0x001f\n-\t#define\tLED1_ACTIVE\t\tBIT(5)\n-\t#define\tLED1_LINK_10\t\tBIT(6)\n-\t#define\tLED1_LINK_100\t\tBIT(7)\n-\t#define\tLED1_LINK_1000\t\tBIT(8)\n-\t#define\tLED1_FD\t\t\tBIT(9)\n-\t#define\tLED1_USB3_MASK\t\t0x03e0\n-\t#define\tLED2_ACTIVE\t\tBIT(10)\n-\t#define\tLED2_LINK_1000\t\tBIT(13)\n-\t#define\tLED2_LINK_100\t\tBIT(12)\n-\t#define\tLED2_LINK_10\t\tBIT(11)\n-\t#define\tLED2_FD\t\t\tBIT(14)\n-\t#define\tLED_VALID\t\tBIT(15)\n-\t#define\tLED2_USB3_MASK\t\t0x7c00\n-\n-#define GMII_PHYPAGE\t\t\t\t0x1e\n-#define GMII_PHY_PAGE_SELECT\t\t\t0x1f\n-\t#define GMII_PHY_PGSEL_EXT\t0x0007\n-\t#define GMII_PHY_PGSEL_PAGE0\t0x0000\n-\t#define GMII_PHY_PGSEL_PAGE3\t0x0003\n-\t#define GMII_PHY_PGSEL_PAGE5\t0x0005\n+#include \"ax88179_lib.h\"\n \n static int ax88179_reset(struct usbnet *dev);\n \n-struct ax88179_data {\n-\tu8 eee_enabled;\n-\tu8 eee_active;\n-\tu16 rxctl;\n-\tu8 in_pm;\n-\tu32 wol_supported;\n-\tu32 wolopts;\n-\tu8 disconnecting;\n-};\n-\n-struct ax88179_int_data {\n-\t__le32 intdata1;\n-\t__le32 intdata2;\n-};\n-\n static const struct {\n \tunsigned char ctrl, timer_l, timer_h, size, ifg;\n } AX88179_BULKIN_SIZE[] =\t{\n@@ -190,165 +23,6 @@ static const struct {\n \t{7, 0xcc, 0x4c, 0x18, 8},\n };\n \n-static void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)\n-{\n-\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n-\n-\tax179_data-\u003ein_pm = pm_mode;\n-}\n-\n-static int ax88179_in_pm(struct usbnet *dev)\n-{\n-\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n-\n-\treturn ax179_data-\u003ein_pm;\n-}\n-\n-static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n-\t\t\t u16 size, void *data)\n-{\n-\tint ret;\n-\tint (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);\n-\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n-\n-\tBUG_ON(!dev);\n-\n-\tif (!ax88179_in_pm(dev))\n-\t\tfn = usbnet_read_cmd;\n-\telse\n-\t\tfn = usbnet_read_cmd_nopm;\n-\n-\tret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,\n-\t\t value, index, data, size);\n-\n-\tif (unlikely((ret \u003c 0) \u0026\u0026 !(ret == -ENODEV \u0026\u0026 ax179_data-\u003edisconnecting)))\n-\t\tnetdev_warn(dev-\u003enet, \"Failed to read reg index 0x%04x: %d\\n\",\n-\t\t\t index, ret);\n-\n-\treturn ret;\n-}\n-\n-static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n-\t\t\t u16 size, const void *data)\n-{\n-\tint ret;\n-\tint (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);\n-\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n-\n-\tBUG_ON(!dev);\n-\n-\tif (!ax88179_in_pm(dev))\n-\t\tfn = usbnet_write_cmd;\n-\telse\n-\t\tfn = usbnet_write_cmd_nopm;\n-\n-\tret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,\n-\t\t value, index, data, size);\n-\n-\tif (unlikely((ret \u003c 0) \u0026\u0026 !(ret == -ENODEV \u0026\u0026 ax179_data-\u003edisconnecting)))\n-\t\tnetdev_warn(dev-\u003enet, \"Failed to write reg index 0x%04x: %d\\n\",\n-\t\t\t index, ret);\n-\n-\treturn ret;\n-}\n-\n-static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\n-\t\t\t\t u16 index, u16 size, void *data)\n-{\n-\tu16 buf;\n-\n-\tif (2 == size) {\n-\t\tbuf = *((u16 *)data);\n-\t\tcpu_to_le16s(\u0026buf);\n-\t\tusbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\n-\t\t\t\t USB_RECIP_DEVICE, value, index, \u0026buf,\n-\t\t\t\t size);\n-\t} else {\n-\t\tusbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\n-\t\t\t\t USB_RECIP_DEVICE, value, index, data,\n-\t\t\t\t size);\n-\t}\n-}\n-\n-static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n-\t\t\t u16 size, void *data)\n-{\n-\tint ret;\n-\n-\tif (2 == size) {\n-\t\tu16 buf = 0;\n-\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, \u0026buf);\n-\t\tle16_to_cpus(\u0026buf);\n-\t\t*((u16 *)data) = buf;\n-\t} else if (4 == size) {\n-\t\tu32 buf = 0;\n-\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, \u0026buf);\n-\t\tle32_to_cpus(\u0026buf);\n-\t\t*((u32 *)data) = buf;\n-\t} else {\n-\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, data);\n-\t}\n-\n-\treturn ret;\n-}\n-\n-static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n-\t\t\t u16 size, const void *data)\n-{\n-\tint ret;\n-\n-\tif (2 == size) {\n-\t\tu16 buf;\n-\t\tbuf = *((u16 *)data);\n-\t\tcpu_to_le16s(\u0026buf);\n-\t\tret = __ax88179_write_cmd(dev, cmd, value, index,\n-\t\t\t\t\t size, \u0026buf);\n-\t} else {\n-\t\tret = __ax88179_write_cmd(dev, cmd, value, index,\n-\t\t\t\t\t size, data);\n-\t}\n-\n-\treturn ret;\n-}\n-\n-static void ax88179_status(struct usbnet *dev, struct urb *urb)\n-{\n-\tstruct ax88179_int_data *event;\n-\tu32 link;\n-\n-\tif (urb-\u003eactual_length \u003c 8)\n-\t\treturn;\n-\n-\tevent = urb-\u003etransfer_buffer;\n-\tle32_to_cpus((void *)\u0026event-\u003eintdata1);\n-\n-\tlink = (((__force u32)event-\u003eintdata1) \u0026 AX_INT_PPLS_LINK) \u003e\u003e 16;\n-\n-\tif (netif_carrier_ok(dev-\u003enet) != link) {\n-\t\tusbnet_link_change(dev, link, 1);\n-\t\tif (!link)\n-\t\t\tnetdev_info(dev-\u003enet, \"ax88179 - Link status is: 0\\n\");\n-\t}\n-}\n-\n-static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)\n-{\n-\tstruct usbnet *dev = netdev_priv(netdev);\n-\tu16 res;\n-\n-\tax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, \u0026res);\n-\treturn res;\n-}\n-\n-static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,\n-\t\t\t int val)\n-{\n-\tstruct usbnet *dev = netdev_priv(netdev);\n-\tu16 res = (u16) val;\n-\n-\tax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, \u0026res);\n-}\n-\n static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,\n \t\t\t\t\t u16 devad)\n {\n@@ -510,146 +184,11 @@ static void ax88179_disconnect(struct usb_interface *intf)\n \tusbnet_disconnect(intf);\n }\n \n-static void\n-ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tstruct ax88179_data *priv = dev-\u003edriver_priv;\n-\n-\twolinfo-\u003esupported = priv-\u003ewol_supported;\n-\twolinfo-\u003ewolopts = priv-\u003ewolopts;\n-}\n-\n-static int\n-ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tstruct ax88179_data *priv = dev-\u003edriver_priv;\n-\n-\tif (wolinfo-\u003ewolopts \u0026 ~(priv-\u003ewol_supported))\n-\t\treturn -EINVAL;\n-\n-\tpriv-\u003ewolopts = wolinfo-\u003ewolopts;\n-\n-\treturn 0;\n-}\n-\n static int ax88179_get_eeprom_len(struct net_device *net)\n {\n \treturn AX_EEPROM_LEN;\n }\n \n-static int\n-ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,\n-\t\t u8 *data)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tu16 *eeprom_buff;\n-\tint first_word, last_word;\n-\tint i, ret;\n-\n-\tif (eeprom-\u003elen == 0)\n-\t\treturn -EINVAL;\n-\n-\teeprom-\u003emagic = AX88179_EEPROM_MAGIC;\n-\n-\tfirst_word = eeprom-\u003eoffset \u003e\u003e 1;\n-\tlast_word = (eeprom-\u003eoffset + eeprom-\u003elen - 1) \u003e\u003e 1;\n-\teeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),\n-\t\t\t\t GFP_KERNEL);\n-\tif (!eeprom_buff)\n-\t\treturn -ENOMEM;\n-\n-\t/* ax88179/178A returns 2 bytes from eeprom on read */\n-\tfor (i = first_word; i \u003c= last_word; i++) {\n-\t\tret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,\n-\t\t\t\t\t \u0026eeprom_buff[i - first_word]);\n-\t\tif (ret \u003c 0) {\n-\t\t\tkfree(eeprom_buff);\n-\t\t\treturn -EIO;\n-\t\t}\n-\t}\n-\n-\tmemcpy(data, (u8 *)eeprom_buff + (eeprom-\u003eoffset \u0026 1), eeprom-\u003elen);\n-\tkfree(eeprom_buff);\n-\treturn 0;\n-}\n-\n-static int\n-ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,\n-\t\t u8 *data)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tu16 *eeprom_buff;\n-\tint first_word;\n-\tint last_word;\n-\tint ret;\n-\tint i;\n-\n-\tnetdev_dbg(net, \"write EEPROM len %d, offset %d, magic 0x%x\\n\",\n-\t\t eeprom-\u003elen, eeprom-\u003eoffset, eeprom-\u003emagic);\n-\n-\tif (eeprom-\u003elen == 0)\n-\t\treturn -EINVAL;\n-\n-\tif (eeprom-\u003emagic != AX88179_EEPROM_MAGIC)\n-\t\treturn -EINVAL;\n-\n-\tfirst_word = eeprom-\u003eoffset \u003e\u003e 1;\n-\tlast_word = (eeprom-\u003eoffset + eeprom-\u003elen - 1) \u003e\u003e 1;\n-\n-\teeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),\n-\t\t\t\t GFP_KERNEL);\n-\tif (!eeprom_buff)\n-\t\treturn -ENOMEM;\n-\n-\t/* align data to 16 bit boundaries, read the missing data from\n-\t the EEPROM */\n-\tif (eeprom-\u003eoffset \u0026 1) {\n-\t\tret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,\n-\t\t\t\t \u0026eeprom_buff[0]);\n-\t\tif (ret \u003c 0) {\n-\t\t\tnetdev_err(net, \"Failed to read EEPROM at offset 0x%02x.\\n\", first_word);\n-\t\t\tgoto free;\n-\t\t}\n-\t}\n-\n-\tif ((eeprom-\u003eoffset + eeprom-\u003elen) \u0026 1) {\n-\t\tret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,\n-\t\t\t\t \u0026eeprom_buff[last_word - first_word]);\n-\t\tif (ret \u003c 0) {\n-\t\t\tnetdev_err(net, \"Failed to read EEPROM at offset 0x%02x.\\n\", last_word);\n-\t\t\tgoto free;\n-\t\t}\n-\t}\n-\n-\tmemcpy((u8 *)eeprom_buff + (eeprom-\u003eoffset \u0026 1), data, eeprom-\u003elen);\n-\n-\tfor (i = first_word; i \u003c= last_word; i++) {\n-\t\tnetdev_dbg(net, \"write to EEPROM at offset 0x%02x, data 0x%04x\\n\",\n-\t\t\t i, eeprom_buff[i - first_word]);\n-\t\tret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,\n-\t\t\t\t\t\u0026eeprom_buff[i - first_word]);\n-\t\tif (ret \u003c 0) {\n-\t\t\tnetdev_err(net, \"Failed to write EEPROM at offset 0x%02x.\\n\", i);\n-\t\t\tgoto free;\n-\t\t}\n-\t\tmsleep(20);\n-\t}\n-\n-\t/* reload EEPROM data */\n-\tret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);\n-\tif (ret \u003c 0) {\n-\t\tnetdev_err(net, \"Failed to reload EEPROM data\\n\");\n-\t\tgoto free;\n-\t}\n-\n-\tret = 0;\n-free:\n-\tkfree(eeprom_buff);\n-\treturn ret;\n-}\n-\n static int ax88179_get_link_ksettings(struct net_device *net,\n \t\t\t\t struct ethtool_link_ksettings *cmd)\n {\n@@ -864,125 +403,6 @@ static const struct ethtool_ops ax88179_ethtool_ops = {\n \t.get_ts_info\t\t= ethtool_op_get_ts_info,\n };\n \n-static void ax88179_set_multicast(struct net_device *net)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tstruct ax88179_data *data = dev-\u003edriver_priv;\n-\tu8 *m_filter = ((u8 *)dev-\u003edata);\n-\n-\tdata-\u003erxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);\n-\n-\tif (net-\u003eflags \u0026 IFF_PROMISC) {\n-\t\tdata-\u003erxctl |= AX_RX_CTL_PRO;\n-\t} else if (net-\u003eflags \u0026 IFF_ALLMULTI ||\n-\t\t netdev_mc_count(net) \u003e AX_MAX_MCAST) {\n-\t\tdata-\u003erxctl |= AX_RX_CTL_AMALL;\n-\t} else if (netdev_mc_empty(net)) {\n-\t\t/* just broadcast and directed */\n-\t} else {\n-\t\t/* We use dev-\u003edata for our 8 byte filter buffer\n-\t\t * to avoid allocating memory that is tricky to free later\n-\t\t */\n-\t\tu32 crc_bits;\n-\t\tstruct netdev_hw_addr *ha;\n-\n-\t\tmemset(m_filter, 0, AX_MCAST_FLTSIZE);\n-\n-\t\tnetdev_for_each_mc_addr(ha, net) {\n-\t\t\tcrc_bits = ether_crc(ETH_ALEN, ha-\u003eaddr) \u003e\u003e 26;\n-\t\t\t*(m_filter + (crc_bits \u003e\u003e 3)) |= (1 \u003c\u003c (crc_bits \u0026 7));\n-\t\t}\n-\n-\t\tax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,\n-\t\t\t\t\tAX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,\n-\t\t\t\t\tm_filter);\n-\n-\t\tdata-\u003erxctl |= AX_RX_CTL_AM;\n-\t}\n-\n-\tax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,\n-\t\t\t\t2, 2, \u0026data-\u003erxctl);\n-}\n-\n-static int\n-ax88179_set_features(struct net_device *net, netdev_features_t features)\n-{\n-\tu8 tmp;\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tnetdev_features_t changed = net-\u003efeatures ^ features;\n-\n-\tif (changed \u0026 NETIF_F_IP_CSUM) {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n-\t\ttmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;\n-\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n-\t}\n-\n-\tif (changed \u0026 NETIF_F_IPV6_CSUM) {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n-\t\ttmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;\n-\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n-\t}\n-\n-\tif (changed \u0026 NETIF_F_RXCSUM) {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, \u0026tmp);\n-\t\ttmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |\n-\t\t AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;\n-\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, \u0026tmp);\n-\t}\n-\n-\treturn 0;\n-}\n-\n-static int ax88179_change_mtu(struct net_device *net, int new_mtu)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tu16 tmp16;\n-\n-\tWRITE_ONCE(net-\u003emtu, new_mtu);\n-\tdev-\u003ehard_mtu = net-\u003emtu + net-\u003ehard_header_len;\n-\n-\tif (net-\u003emtu \u003e 1500) {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n-\t\t\t\t 2, 2, \u0026tmp16);\n-\t\ttmp16 |= AX_MEDIUM_JUMBO_EN;\n-\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n-\t\t\t\t 2, 2, \u0026tmp16);\n-\t} else {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n-\t\t\t\t 2, 2, \u0026tmp16);\n-\t\ttmp16 \u0026= ~AX_MEDIUM_JUMBO_EN;\n-\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n-\t\t\t\t 2, 2, \u0026tmp16);\n-\t}\n-\n-\t/* max qlen depend on hard_mtu and rx_urb_size */\n-\tusbnet_update_max_qlen(dev);\n-\n-\treturn 0;\n-}\n-\n-static int ax88179_set_mac_addr(struct net_device *net, void *p)\n-{\n-\tstruct usbnet *dev = netdev_priv(net);\n-\tstruct sockaddr *addr = p;\n-\tint ret;\n-\n-\tif (netif_running(net))\n-\t\treturn -EBUSY;\n-\tif (!is_valid_ether_addr(addr-\u003esa_data))\n-\t\treturn -EADDRNOTAVAIL;\n-\n-\teth_hw_addr_set(net, addr-\u003esa_data);\n-\n-\t/* Set the MAC address */\n-\tret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,\n-\t\t\t\t ETH_ALEN, net-\u003edev_addr);\n-\tif (ret \u003c 0)\n-\t\treturn ret;\n-\n-\treturn 0;\n-}\n-\n static const struct net_device_ops ax88179_netdev_ops = {\n \t.ndo_open\t\t= usbnet_open,\n \t.ndo_stop\t\t= usbnet_stop,\n@@ -1249,35 +669,6 @@ static int ax88179_led_setting(struct usbnet *dev)\n \treturn 0;\n }\n \n-static void ax88179_get_mac_addr(struct usbnet *dev)\n-{\n-\tu8 mac[ETH_ALEN];\n-\n-\tmemset(mac, 0, sizeof(mac));\n-\n-\t/* Maybe the boot loader passed the MAC address via device tree */\n-\tif (!eth_platform_get_mac_address(\u0026dev-\u003eudev-\u003edev, mac)) {\n-\t\tnetif_dbg(dev, ifup, dev-\u003enet,\n-\t\t\t \"MAC address read from device tree\");\n-\t} else {\n-\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,\n-\t\t\t\t ETH_ALEN, mac);\n-\t\tnetif_dbg(dev, ifup, dev-\u003enet,\n-\t\t\t \"MAC address read from ASIX chip\");\n-\t}\n-\n-\tif (is_valid_ether_addr(mac)) {\n-\t\teth_hw_addr_set(dev-\u003enet, mac);\n-\t\tif (!is_local_ether_addr(mac))\n-\t\t\tdev-\u003enet-\u003eaddr_assign_type = NET_ADDR_PERM;\n-\t} else {\n-\t\tnetdev_info(dev-\u003enet, \"invalid MAC address, using random\\n\");\n-\t}\n-\n-\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,\n-\t\t\t dev-\u003enet-\u003edev_addr);\n-}\n-\n static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)\n {\n \tstruct ax88179_data *ax179_data;\n@@ -1293,6 +684,22 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)\n \n \tdev-\u003edriver_priv = ax179_data;\n \n+\tax179_data-\u003eresume = ax88179_resume;\n+\tax179_data-\u003esuspend = ax88179_suspend;\n+\n+\tret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,\n+\t\t\t 1, 1, \u0026ax179_data-\u003echip_version);\n+\tif (ret \u003c 0)\n+\t\tgoto err_nodev;\n+\n+\tax179_data-\u003echip_version = (ax179_data-\u003echip_version \u0026 0xf0) \u003e\u003e 4;\n+\tax179_data-\u003eis_ax88772d = 0;\n+\tax179_data-\u003eip_align = 1;\n+\tax179_data-\u003eeeprom_read_cmd = AX_ACCESS_EEPROM;\n+\tax179_data-\u003eeeprom_write_cmd = AX_ACCESS_EEPROM;\n+\tax179_data-\u003eeeprom_block = 2;\n+\tax179_data-\u003eeeprom_wen = 0;\n+\n \tdev-\u003enet-\u003enetdev_ops = \u0026ax88179_netdev_ops;\n \tdev-\u003enet-\u003eethtool_ops = \u0026ax88179_ethtool_ops;\n \tdev-\u003enet-\u003eneeded_headroom = 8;\n@@ -1317,6 +724,12 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)\n \tax88179_reset(dev);\n \n \treturn 0;\n+\n+err_nodev:\n+\tkfree(ax179_data);\n+\tax179_data = NULL;\n+\n+\treturn ret;\n }\n \n static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)\n@@ -1619,11 +1032,10 @@ static int ax88179_reset(struct usbnet *dev)\n \tdev-\u003erx_urb_size = 1024 * 20;\n \n \t*tmp = 0x34;\n-\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp);\n \n \t*tmp = 0x52;\n-\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,\n-\t\t\t 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);\n \n \t/* Enable checksum offload */\n \t*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |\n@@ -1880,6 +1292,18 @@ static const struct driver_info at_umc2000sp_info = {\n \n static const struct usb_device_id products[] = {\n {\n+\t/* ASIX AX88179A USB 3.2 1000Mbit Ethernet */\n+\tUSB_DEVICE_VER(0x0b95, 0x1790, 0, 0x0200),\n+\t.driver_info = (unsigned long)\u0026ax88179a_info,\n+}, {\n+\t/* ASIX AX88772D USB 2.0 100Mbit Ethernet */\n+\tUSB_DEVICE_VER(0x0b95, 0x1790, 0x0300, 0x0300),\n+\t.driver_info = (unsigned long)\u0026ax88772d_info,\n+}, {\n+\t/* ASIX AX88279 USB 3.2 2500Mbit Ethernet */\n+\tUSB_DEVICE_VER(0x0b95, 0x1790, 0, 0x0400),\n+\t.driver_info = (unsigned long)\u0026ax88279_info,\n+}, {\n \t/* ASIX AX88179 10/100/1000 */\n \tUSB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x1790, 0xff, 0xff, 0),\n \t.driver_info = (unsigned long)\u0026ax88179_info,\n@@ -1936,19 +1360,19 @@ static const struct usb_device_id products[] = {\n };\n MODULE_DEVICE_TABLE(usb, products);\n \n-static struct usb_driver ax88179_178a_driver = {\n-\t.name =\t\t\"ax88179_178a\",\n+static struct usb_driver ax88179_driver = {\n+\t.name =\t\t\"ax88179\",\n \t.id_table =\tproducts,\n \t.probe =\tusbnet_probe,\n-\t.suspend =\tax88179_suspend,\n-\t.resume =\tax88179_resume,\n-\t.reset_resume =\tax88179_resume,\n+\t.suspend =\tax88179_suspend_wrapper,\n+\t.resume =\tax88179_resume_wrapper,\n+\t.reset_resume =\tax88179_resume_wrapper,\n \t.disconnect =\tax88179_disconnect,\n \t.supports_autosuspend = 1,\n \t.disable_hub_initiated_lpm = 1,\n };\n \n-module_usb_driver(ax88179_178a_driver);\n+module_usb_driver(ax88179_driver);\n \n-MODULE_DESCRIPTION(\"ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices\");\n+MODULE_DESCRIPTION(\"ASIX AX88179/179A/178A based USB 3.0/2.0 Gigabit Ethernet Devices\");\n MODULE_LICENSE(\"GPL\");\ndiff --git a/drivers/net/usb/ax88179_lib.c b/drivers/net/usb/ax88179_lib.c\nnew file mode 100644\nindex 0000000000000..db77b7d4539ec\n--- /dev/null\n+++ b/drivers/net/usb/ax88179_lib.c\n@@ -0,0 +1,506 @@\n+// SPDX-License-Identifier: GPL-2.0-or-later\n+/*\n+ * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices\n+ *\n+ * Copyright (C) 2011-2013 ASIX\n+ */\n+\n+#include \u003clinux/etherdevice.h\u003e\n+#include \"ax88179_lib.h\"\n+\n+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\n+\tax179_data-\u003ein_pm = pm_mode;\n+}\n+\n+static int ax88179_in_pm(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\n+\treturn ax179_data-\u003ein_pm;\n+}\n+\n+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n+\t\t u16 size, void *data)\n+{\n+\tint (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, void *d, u16 size);\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tint ret;\n+\n+\tif (!ax88179_in_pm(dev))\n+\t\tfn = usbnet_read_cmd;\n+\telse\n+\t\tfn = usbnet_read_cmd_nopm;\n+\n+\tret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,\n+\t\t value, index, data, size);\n+\n+\tif (unlikely(ret \u003c 0 \u0026\u0026 !(ret == -ENODEV \u0026\u0026 ax179_data-\u003edisconnecting)))\n+\t\tnetdev_warn(dev-\u003enet, \"Failed to read reg index 0x%04x: %d\\n\",\n+\t\t\t index, ret);\n+\n+\treturn ret;\n+}\n+\n+static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value,\n+\t\t\t u16 index, u16 size, const void *data)\n+{\n+\tint (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, const void *d, u16 size);\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tint ret;\n+\n+\tif (!ax88179_in_pm(dev))\n+\t\tfn = usbnet_write_cmd;\n+\telse\n+\t\tfn = usbnet_write_cmd_nopm;\n+\n+\tret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,\n+\t\t value, index, data, size);\n+\n+\tif (unlikely(ret \u003c 0 \u0026\u0026 !(ret == -ENODEV \u0026\u0026 ax179_data-\u003edisconnecting)))\n+\t\tnetdev_warn(dev-\u003enet, \"Failed to write reg index 0x%04x: %d\\n\",\n+\t\t\t index, ret);\n+\n+\treturn ret;\n+}\n+\n+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\n+\t\t\t u16 index, u16 size, void *data)\n+{\n+\tu16 buf;\n+\n+\tif (size == 2) {\n+\t\tbuf = *((u16 *)data);\n+\t\tcpu_to_le16s(\u0026buf);\n+\t\tusbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\n+\t\t\t\t USB_RECIP_DEVICE, value, index, \u0026buf,\n+\t\t\t\t size);\n+\t} else {\n+\t\tusbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\n+\t\t\t\t USB_RECIP_DEVICE, value, index, data,\n+\t\t\t\t size);\n+\t}\n+}\n+\n+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n+\t\t u16 size, void *data)\n+{\n+\tint ret;\n+\n+\tif (size == 2) {\n+\t\tu16 buf = 0;\n+\n+\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, \u0026buf);\n+\t\tle16_to_cpus(\u0026buf);\n+\t\t*((u16 *)data) = buf;\n+\t} else if (size == 4) {\n+\t\tu32 buf = 0;\n+\n+\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, \u0026buf);\n+\t\tle32_to_cpus(\u0026buf);\n+\t\t*((u32 *)data) = buf;\n+\t} else {\n+\t\tret = __ax88179_read_cmd(dev, cmd, value, index, size, data);\n+\t}\n+\n+\treturn ret;\n+}\n+\n+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n+\t\t u16 size, const void *data)\n+{\n+\tint ret;\n+\n+\tif (size == 2) {\n+\t\tu16 buf;\n+\n+\t\tbuf = *((u16 *)data);\n+\t\tcpu_to_le16s(\u0026buf);\n+\t\tret = __ax88179_write_cmd(dev, cmd, value, index,\n+\t\t\t\t\t size, \u0026buf);\n+\t} else {\n+\t\tret = __ax88179_write_cmd(dev, cmd, value, index,\n+\t\t\t\t\t size, data);\n+\t}\n+\n+\treturn ret;\n+}\n+\n+struct ax88179_data *netdev2data(struct net_device *net)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\n+\treturn dev-\u003edriver_priv;\n+}\n+\n+void ax88179_status(struct usbnet *dev, struct urb *urb)\n+{\n+\tstruct ax88179_int_data *event;\n+\tu32 link;\n+\n+\tif (urb-\u003eactual_length \u003c 8)\n+\t\treturn;\n+\n+\tevent = urb-\u003etransfer_buffer;\n+\tle32_to_cpus((void *)\u0026event-\u003eintdata1);\n+\n+\tlink = (((__force u32)event-\u003eintdata1) \u0026 AX_INT_PPLS_LINK) \u003e\u003e 16;\n+\n+\tif (netif_carrier_ok(dev-\u003enet) != link) {\n+\t\tusbnet_link_change(dev, link, 1);\n+\t\tif (!link)\n+\t\t\tnetdev_info(dev-\u003enet, \"ax88179 - Link status is: 0\\n\");\n+\t}\n+}\n+\n+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)\n+{\n+\tstruct usbnet *dev = netdev_priv(netdev);\n+\tu16 res;\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, \u0026res);\n+\treturn res;\n+}\n+\n+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)\n+{\n+\tstruct usbnet *dev = netdev_priv(netdev);\n+\tu16 res = (u16)val;\n+\n+\tax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, \u0026res);\n+}\n+\n+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct ax88179_data *priv = dev-\u003edriver_priv;\n+\n+\twolinfo-\u003esupported = priv-\u003ewol_supported;\n+\twolinfo-\u003ewolopts = priv-\u003ewolopts;\n+}\n+\n+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct ax88179_data *priv = dev-\u003edriver_priv;\n+\n+\tif (wolinfo-\u003ewolopts \u0026 ~(priv-\u003ewol_supported))\n+\t\treturn -EINVAL;\n+\n+\tpriv-\u003ewolopts = wolinfo-\u003ewolopts;\n+\n+\treturn 0;\n+}\n+\n+static void\n+ax88179_eeprom_access_params(struct ax88179_data *ax179_data, int i, u16 *value, u16 *idx)\n+{\n+\t/* AX88179 has a word-addressable EEPROM\n+\t * AX88179A uses EFUSES with 20 bytes length\n+\t * AX88279 has an EEPROM addressable in 256 byte blocks\n+\t */\n+\tif (ax179_data-\u003echip_version \u003c AX_VERSION_AX88179A) {\n+\t\t*value = i;\n+\t\t*idx = 1;\n+\t} else if (ax179_data-\u003echip_version \u003e= AX_VERSION_AX88279) {\n+\t\t*value = (i * ax179_data-\u003eeeprom_block) \u003e\u003e 16;\n+\t\t*idx = (i * ax179_data-\u003eeeprom_block) \u0026 0xffff;\n+\t} else {\n+\t\t*value = i \u003c\u003c 4;\n+\t\t*idx = 0;\n+\t}\n+}\n+\n+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct ax88179_data *ax179_data;\n+\tint first, last, i, ret;\n+\tu8 *eeprom_buff;\n+\n+\tax179_data = dev-\u003edriver_priv;\n+\n+\tif (eeprom-\u003elen == 0)\n+\t\treturn -EINVAL;\n+\n+\teeprom-\u003emagic = AX88179_EEPROM_MAGIC;\n+\n+\tfirst = eeprom-\u003eoffset / ax179_data-\u003eeeprom_block;\n+\tlast = (eeprom-\u003eoffset + eeprom-\u003elen - 1) / ax179_data-\u003eeeprom_block;\n+\n+\teeprom_buff = kzalloc((last - first + 1) * ax179_data-\u003eeeprom_block, GFP_KERNEL);\n+\tif (!eeprom_buff)\n+\t\treturn -ENOMEM;\n+\n+\tfor (i = first; i \u003c= last; i++) {\n+\t\tu16 value, idx;\n+\n+\t\tax88179_eeprom_access_params(ax179_data, i, \u0026value, \u0026idx);\n+\t\tret = __ax88179_read_cmd(dev, ax179_data-\u003eeeprom_read_cmd,\n+\t\t\t\t\t value, idx, ax179_data-\u003eeeprom_block,\n+\t\t\t\t\t eeprom_buff + (i - first) * ax179_data-\u003eeeprom_block);\n+\n+\t\tif (ret \u003c 0) {\n+\t\t\tkfree(eeprom_buff);\n+\t\t\treturn -EIO;\n+\t\t}\n+\t}\n+\n+\tmemcpy(data, eeprom_buff + eeprom-\u003eoffset % ax179_data-\u003eeeprom_block, eeprom-\u003elen);\n+\tkfree(eeprom_buff);\n+\treturn 0;\n+}\n+\n+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct ax88179_data *ax179_data;\n+\tu16 *eeprom_buff;\n+\tint first_word;\n+\tint last_word;\n+\tint ret;\n+\tint i;\n+\n+\tax179_data = dev-\u003edriver_priv;\n+\tif (ax179_data-\u003echip_version \u003e= AX_VERSION_AX88179A)\n+\t\treturn -EOPNOTSUPP;\n+\n+\tnetdev_dbg(net, \"write EEPROM len %d, offset %d, magic 0x%x\\n\",\n+\t\t eeprom-\u003elen, eeprom-\u003eoffset, eeprom-\u003emagic);\n+\n+\tif (eeprom-\u003elen == 0)\n+\t\treturn -EINVAL;\n+\n+\tif (eeprom-\u003emagic != AX88179_EEPROM_MAGIC)\n+\t\treturn -EINVAL;\n+\n+\tfirst_word = eeprom-\u003eoffset \u003e\u003e 1;\n+\tlast_word = (eeprom-\u003eoffset + eeprom-\u003elen - 1) \u003e\u003e 1;\n+\n+\teeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),\n+\t\t\t\t GFP_KERNEL);\n+\tif (!eeprom_buff)\n+\t\treturn -ENOMEM;\n+\n+\t/* align data to 16 bit boundaries, read the missing data from\n+\t * the EEPROM\n+\t */\n+\tif (eeprom-\u003eoffset \u0026 1) {\n+\t\tret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,\n+\t\t\t\t \u0026eeprom_buff[0]);\n+\t\tif (ret \u003c 0) {\n+\t\t\tnetdev_err(net, \"Failed to read EEPROM at offset 0x%02x.\\n\", first_word);\n+\t\t\tgoto free;\n+\t\t}\n+\t}\n+\n+\tif ((eeprom-\u003eoffset + eeprom-\u003elen) \u0026 1) {\n+\t\tret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,\n+\t\t\t\t \u0026eeprom_buff[last_word - first_word]);\n+\t\tif (ret \u003c 0) {\n+\t\t\tnetdev_err(net, \"Failed to read EEPROM at offset 0x%02x.\\n\", last_word);\n+\t\t\tgoto free;\n+\t\t}\n+\t}\n+\n+\tmemcpy((u8 *)eeprom_buff + (eeprom-\u003eoffset \u0026 1), data, eeprom-\u003elen);\n+\n+\tfor (i = first_word; i \u003c= last_word; i++) {\n+\t\tnetdev_dbg(net, \"write to EEPROM at offset 0x%02x, data 0x%04x\\n\",\n+\t\t\t i, eeprom_buff[i - first_word]);\n+\t\tret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,\n+\t\t\t\t\t\u0026eeprom_buff[i - first_word]);\n+\t\tif (ret \u003c 0) {\n+\t\t\tnetdev_err(net, \"Failed to write EEPROM at offset 0x%02x.\\n\", i);\n+\t\t\tgoto free;\n+\t\t}\n+\t\tmsleep(20);\n+\t}\n+\n+\t/* reload EEPROM data */\n+\tret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);\n+\tif (ret \u003c 0) {\n+\t\tnetdev_err(net, \"Failed to reload EEPROM data\\n\");\n+\t\tgoto free;\n+\t}\n+\n+\tret = 0;\n+free:\n+\tkfree(eeprom_buff);\n+\treturn ret;\n+}\n+\n+void ax88179_set_multicast(struct net_device *net)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tu8 *m_filter = ((u8 *)dev-\u003edata);\n+\tstruct ax88179_data *data;\n+\n+\tdata = dev-\u003edriver_priv;\n+\n+\tdata-\u003erxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_DROPCRCERR);\n+\tif (data-\u003eip_align)\n+\t\tdata-\u003erxctl |= AX_RX_CTL_IPE;\n+\n+\tif (net-\u003eflags \u0026 IFF_PROMISC) {\n+\t\tdata-\u003erxctl |= AX_RX_CTL_PRO;\n+\t} else if (net-\u003eflags \u0026 IFF_ALLMULTI ||\n+\t\t netdev_mc_count(net) \u003e AX_MAX_MCAST) {\n+\t\tdata-\u003erxctl |= AX_RX_CTL_AMALL;\n+\t} else if (netdev_mc_empty(net)) {\n+\t\t/* just broadcast and directed */\n+\t} else {\n+\t\t/* We use dev-\u003edata for our 8 byte filter buffer\n+\t\t * to avoid allocating memory that is tricky to free later\n+\t\t */\n+\t\tu32 crc_bits;\n+\t\tstruct netdev_hw_addr *ha;\n+\n+\t\tmemset(m_filter, 0, AX_MCAST_FLTSIZE);\n+\n+\t\tnetdev_for_each_mc_addr(ha, net) {\n+\t\t\tcrc_bits = ether_crc(ETH_ALEN, ha-\u003eaddr) \u003e\u003e 26;\n+\t\t\t*(m_filter + (crc_bits \u003e\u003e 3)) |= (1 \u003c\u003c (crc_bits \u0026 7));\n+\t\t}\n+\n+\t\tax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,\n+\t\t\t\t\tAX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,\n+\t\t\t\t\tm_filter);\n+\n+\t\tdata-\u003erxctl |= AX_RX_CTL_AM;\n+\t}\n+\n+\tax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,\n+\t\t\t\t2, 2, \u0026data-\u003erxctl);\n+}\n+\n+int ax88179_set_features(struct net_device *net, netdev_features_t features)\n+{\n+\tu8 tmp;\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct ax88179_data *data = dev-\u003edriver_priv;\n+\tnetdev_features_t changed = net-\u003efeatures ^ features;\n+\n+\tif (changed \u0026 NETIF_F_IP_CSUM) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n+\t\ttmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n+\t}\n+\n+\tif (changed \u0026 NETIF_F_IPV6_CSUM) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n+\t\ttmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, \u0026tmp);\n+\t}\n+\n+\tif (changed \u0026 NETIF_F_RXCSUM) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, \u0026tmp);\n+\t\ttmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |\n+\t\t AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, \u0026tmp);\n+\t\tdata-\u003erx_checksum = !!(features \u0026 NETIF_F_RXCSUM);\n+\t}\n+\n+\treturn 0;\n+}\n+\n+void ax88179_get_mac_addr(struct usbnet *dev)\n+{\n+\tu8 mac[ETH_ALEN];\n+\n+\tmemset(mac, 0, sizeof(mac));\n+\n+\t/* Maybe the boot loader passed the MAC address via device tree */\n+\tif (!eth_platform_get_mac_address(\u0026dev-\u003eudev-\u003edev, mac)) {\n+\t\tnetif_dbg(dev, ifup, dev-\u003enet,\n+\t\t\t \"MAC address read from device tree\");\n+\t} else {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,\n+\t\t\t\t ETH_ALEN, mac);\n+\t\tnetif_dbg(dev, ifup, dev-\u003enet,\n+\t\t\t \"MAC address read from ASIX chip\");\n+\t}\n+\n+\tif (is_valid_ether_addr(mac)) {\n+\t\teth_hw_addr_set(dev-\u003enet, mac);\n+\t\tif (!is_local_ether_addr(mac))\n+\t\t\tdev-\u003enet-\u003eaddr_assign_type = NET_ADDR_PERM;\n+\t} else {\n+\t\tnetdev_info(dev-\u003enet, \"invalid MAC address, using random\\n\");\n+\t}\n+\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,\n+\t\t\t dev-\u003enet-\u003edev_addr);\n+}\n+\n+int ax88179_change_mtu(struct net_device *net, int new_mtu)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tu16 tmp16;\n+\n+\tWRITE_ONCE(net-\u003emtu, new_mtu);\n+\tdev-\u003ehard_mtu = net-\u003emtu + net-\u003ehard_header_len;\n+\n+\tif (net-\u003emtu \u003e 1500) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n+\t\t\t\t 2, 2, \u0026tmp16);\n+\t\ttmp16 |= AX_MEDIUM_JUMBO_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n+\t\t\t\t 2, 2, \u0026tmp16);\n+\t} else {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n+\t\t\t\t 2, 2, \u0026tmp16);\n+\t\ttmp16 \u0026= ~AX_MEDIUM_JUMBO_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,\n+\t\t\t\t 2, 2, \u0026tmp16);\n+\t}\n+\n+\t/* max qlen depend on hard_mtu and rx_urb_size */\n+\tusbnet_update_max_qlen(dev);\n+\n+\treturn 0;\n+}\n+\n+int ax88179_set_mac_addr(struct net_device *net, void *p)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tstruct sockaddr *addr = p;\n+\tint ret;\n+\n+\tif (netif_running(net))\n+\t\treturn -EBUSY;\n+\tif (!is_valid_ether_addr(addr-\u003esa_data))\n+\t\treturn -EADDRNOTAVAIL;\n+\n+\teth_hw_addr_set(net, addr-\u003esa_data);\n+\n+\t/* Set the MAC address */\n+\tret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,\n+\t\t\t\tETH_ALEN, net-\u003edev_addr);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\treturn 0;\n+}\n+\n+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message)\n+{\n+\tstruct usbnet *dev = usb_get_intfdata(intf);\n+\tstruct ax88179_data *priv;\n+\n+\tpriv = dev-\u003edriver_priv;\n+\n+\treturn priv-\u003esuspend(intf, message);\n+}\n+\n+int ax88179_resume_wrapper(struct usb_interface *intf)\n+{\n+\tstruct usbnet *dev = usb_get_intfdata(intf);\n+\tstruct ax88179_data *priv;\n+\n+\tpriv = dev-\u003edriver_priv;\n+\treturn priv-\u003eresume(intf);\n+}\n+\ndiff --git a/drivers/net/usb/ax88179_lib.h b/drivers/net/usb/ax88179_lib.h\nnew file mode 100644\nindex 0000000000000..16a6dcbd6e66e\n--- /dev/null\n+++ b/drivers/net/usb/ax88179_lib.h\n@@ -0,0 +1,358 @@\n+/* SPDX-License-Identifier: GPL-2.0-or-later */\n+\n+#include \u003clinux/usb.h\u003e\n+#include \u003clinux/crc32.h\u003e\n+#include \u003clinux/phylink.h\u003e\n+#include \u003clinux/usb/usbnet.h\u003e\n+\n+#ifndef __LINUX_USBNET_AX88179_H\n+#define __LINUX_USBNET_AX88179_H\n+\n+#define AX88179_PHY_ID\t\t\t\t0x03\n+#define AX_EEPROM_LEN\t\t\t\t0x100\n+#define AX88179_EEPROM_MAGIC\t\t\t0x17900b95\n+#define AX_MCAST_FLTSIZE\t\t\t8\n+#define AX_MAX_MCAST\t\t\t\t64\n+#define AX_INT_PPLS_LINK\t\t\t((u32)BIT(16))\n+#define AX_RXHDR_L4_TYPE_MASK\t\t\t0x1c\n+#define AX_RXHDR_L4_TYPE_UDP\t\t\t4\n+#define AX_RXHDR_L4_TYPE_TCP\t\t\t16\n+#define AX_RXHDR_L3CSUM_ERR\t\t\t2\n+#define AX_RXHDR_L4CSUM_ERR\t\t\t1\n+#define AX_RXHDR_CRC_ERR\t\t\t((u32)BIT(29))\n+#define AX_RXHDR_DROP_ERR\t\t\t((u32)BIT(31))\n+#define AX_ACCESS_MAC\t\t\t\t0x01\n+#define AX_ACCESS_PHY\t\t\t\t0x02\n+#define AX_ACCESS_EEPROM\t\t\t0x04\n+#define AX_ACCESS_EFUS\t\t\t\t0x05\n+#define AX_RELOAD_EEPROM_EFUSE\t\t\t0x06\n+#define AX88179A_WAKEUP_SETTING\t\t\t0x07\n+#define AX_FW_MODE\t\t\t\t0x08\n+#define AX_GPHY_CTL\t\t\t\t0x0F\n+#define AX88179A_FLASH_READ\t\t\t0x21\n+#define AX88179A_FLASH_WEN\t\t\t0x22\n+#define AX88179A_FLASH_WDIS\t\t\t0x23\n+#define AX88179A_FLASH_WRITE\t\t\t0x24\n+#define AX88179A_PHY_CLAUSE45\t\t\t0x27\n+#define AX88179A_FLASH_ERASE_SECTION\t\t0x28\n+#define AX88179A_ACCESS_BL\t\t\t0x2A\n+#define AX88179A_PHY_POWER\t\t\t0x31\n+#define AX88179A_AUTODETACH\t\t\t0xC0\n+\n+#define AX_PAUSE_WATERLVL_LOW\t\t\t0x54\n+#define AX_PAUSE_WATERLVL_HIGH\t\t\t0x55\n+\n+#define AX_FW_MODE_179A\t\t\t\t0x01\n+#define PHYSICAL_LINK_STATUS\t\t\t0x02\n+\t#define\tAX_USB_SS\t\t0x04\n+\t#define\tAX_USB_HS\t\t0x02\n+\t#define AX_USB_FS\t\t0x01\n+\n+#define GENERAL_STATUS\t\t\t\t0x03\n+/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */\n+\t#define\tAX_SECLD\t\t0x04\n+\n+#define AX_CHIP_STATUS\t\t\t\t0x05\n+\n+#define AX_SROM_ADDR\t\t\t\t0x07\n+#define AX_SROM_CMD\t\t\t\t0x0a\n+\t#define EEP_RD\t\t\t0x04\n+\t#define EEP_BUSY\t\t0x10\n+\n+#define AX_SROM_DATA_LOW\t\t\t0x08\n+#define AX_SROM_DATA_HIGH\t\t\t0x09\n+\n+#define AX_RX_CTL\t\t\t\t0x0b\n+\t#define AX_RX_CTL_DROPCRCERR\t0x0100\n+\t#define AX_RX_CTL_IPE\t\t0x0200\n+\t#define AX_RX_CTL_START\t\t0x0080\n+\t#define AX_RX_CTL_AP\t\t0x0020\n+\t#define AX_RX_CTL_AM\t\t0x0010\n+\t#define AX_RX_CTL_AB\t\t0x0008\n+\t#define AX_RX_CTL_AMALL\t\t0x0002\n+\t#define AX_RX_CTL_PRO\t\t0x0001\n+\t#define AX_RX_CTL_STOP\t\t0x0000\n+\n+#define AX88179A_ETH_TX_GAP\t\t\t0x0D\n+\n+#define AX88179A_BFM_DATA\t\t\t0x0E\n+\t#define AX_TX_QUEUE_CFG\t\t0x02\n+\t#define AX_TX_QUEUE_SET\t\t0x08\n+\t#define AX_TX_Q1_AHB_FC_EN\t0x10\n+\t#define AX_TX_Q2_AHB_FC_EN\t0x20\n+\t#define AX_XGMII_EN\t\t0x80\n+\n+#define AX_NODE_ID\t\t\t\t0x10\n+#define AX_MULFLTARY\t\t\t\t0x16\n+\n+#define AX_MEDIUM_STATUS_MODE\t\t\t0x22\n+\t#define AX_MEDIUM_GIGAMODE\t0x01\n+\t#define AX_MEDIUM_FULL_DUPLEX\t0x02\n+\t#define AX_MEDIUM_EN_125MHZ\t0x08\n+\t#define AX_MEDIUM_RXFLOW_CTRLEN\t0x10\n+\t#define AX_MEDIUM_TXFLOW_CTRLEN\t0x20\n+\t#define AX_MEDIUM_RECEIVE_EN\t0x100\n+\t#define AX_MEDIUM_PS\t\t0x200\n+\t#define AX_MEDIUM_JUMBO_EN\t0x8040\n+\n+#define AX_MONITOR_MOD\t\t\t\t0x24\n+\t#define AX_MONITOR_MODE_RWLC\t0x02\n+\t#define AX_MONITOR_MODE_RWMP\t0x04\n+\t#define AX_MONITOR_MODE_PMEPOL\t0x20\n+\t#define AX_MONITOR_MODE_PMETYPE\t0x40\n+\n+#define AX_GPIO_CTRL\t\t\t\t0x25\n+\t#define AX_GPIO_CTRL_GPIO3EN\t0x80\n+\t#define AX_GPIO_CTRL_GPIO2EN\t0x40\n+\t#define AX_GPIO_CTRL_GPIO1EN\t0x20\n+\n+#define AX_PHYPWR_RSTCTL\t\t\t0x26\n+\t#define AX_PHYPWR_RSTCTL_BZ\t0x0010\n+\t#define AX_PHYPWR_RSTCTL_IPRL\t0x0020\n+\t#define AX_PHYPWR_RSTCTL_AT\t0x1000\n+\n+#define AX88179A_VLAN_ID_ADDRESS\t\t0x2A\n+\n+#define AX88179A_VLAN_ID_CONTROL\t\t0x2B\n+\t#define AX_VLAN_CONTROL_WE\t0x0001\n+\t#define AX_VLAN_CONTROL_RD\t0x0002\n+\t#define AX_VLAN_CONTROL_VSO\t0x0010\n+\t#define AX_VLAN_CONTROL_VFE\t0x0020\n+\n+#define AX88179A_VLAN_ID_DATA0\t\t\t0x2C\n+#define AX88179A_VLAN_ID_DATA1\t\t\t0x2D\n+\n+#define AX_RX_BULKIN_QCTRL\t\t\t0x2e\n+#define AX_GPHY_EEE_CTRL\t\t\t0x01\n+\n+#define AX_CLK_SELECT\t\t\t\t0x33\n+\t#define AX_CLK_SELECT_BCS\t0x01\n+\t#define AX_CLK_SELECT_ACS\t0x02\n+\t#define AX_CLK_SELECT_ULR\t0x08\n+\n+#define AX_RXCOE_CTL\t\t\t\t0x34\n+\t#define AX_RXCOE_IP\t\t0x01\n+\t#define AX_RXCOE_TCP\t\t0x02\n+\t#define AX_RXCOE_UDP\t\t0x04\n+\t#define AX_RXCOE_TCPV6\t\t0x20\n+\t#define AX_RXCOE_UDPV6\t\t0x40\n+\n+#define AX_TXCOE_CTL\t\t\t\t0x35\n+\t#define AX_TXCOE_IP\t\t0x01\n+\t#define AX_TXCOE_TCP\t\t0x02\n+\t#define AX_TXCOE_UDP\t\t0x04\n+\t#define AX_TXCOE_TCPV6\t\t0x20\n+\t#define AX_TXCOE_UDPV6\t\t0x40\n+\n+#define AX88179A_MAC_BM_INT_MASK\t\t0x41\n+#define AX88179A_MAC_BM_RX_DMA_CTL\t\t0x43\n+#define AX88179A_MAC_BM_TX_DMA_CTL\t\t0x46\n+\n+#define AX88179A_MAC_RX_STATUS_CDC\t\t0x6D\n+\t#define AX_LSOFC_WCNT_7_ACCESS\t0x03\n+\t#define AX_GMII_CRC_APPEND\t0x10\n+\n+#define AX_LEDCTRL\t\t\t\t0x73\n+#define AX88179A_MAC_ARC_CTRL\t\t\t0x9E\n+#define AX88179A_MAC_SWP_CTRL\t\t\t0xB1\n+\n+#define AX88179A_MAC_TX_PAUSE\t\t\t0xB2\n+\n+#define AX88179A_MAC_CDC_DELAY_TX\t\t0xB5\n+\n+#define AX88179A_MAC_PATH\t\t\t0xB7\n+\t#define AX_MAC_RX_PATH_READY\t0x01\n+\t#define AX_MAC_TX_PATH_READY\t0x02\n+\n+#define AX88179A_NEW_PAUSE_CTRL\t\t\t0xB8\n+\t#define AX_NEW_PAUSE_EN\t\t0x01\n+\n+#define AX88179A_MAC_BULK_OUT_CTRL\t\t0xB9\n+\t#define AX_MAC_EFF_EN\t\t0x02\n+\n+#define AX88179A_MAC_RX_DATA_CDC_CNT\t\t0xC0\n+\t#define AX_MAC_LSO_ERR_EN\t0x04\n+\t#define AX_MAC_MIQFFCTRL_FORMAT\t0x10\n+\t#define AX_MAC_MIQFFCTRL_DROP_CRC 0x20\n+\n+#define AX88179A_AUTODETACH_DELAY\t(5UL \u003c\u003c 8)\n+#define AX88179A_AUTODETACH_EN\t\t1\n+\n+#define AX88179A_MAC_LSO_ENHANCE_CTRL\t\t0xC3\n+\t#define AX_LSO_ENHANCE_EN\t0x01\n+\n+#define AX88179A_MAC_TX_HDR_CKSUM\t\t0xCC\n+#define AX88179A_EP5_EHR\t\t\t0xF9\n+\n+#define AX_PHY_POWER\t\t\t\t0x02\n+\n+#define EPHY_LOW_POWER_EN\t\t\t0x01\n+#define S5_WOL_EN\t\t\t\t0x04\n+#define S5_WOL_LOW_POWER\t\t\t0x20\n+\n+#define GMII_PHY_PHYSR\t\t\t\t0x11\n+\t#define GMII_PHY_PHYSR_SMASK\t0xc000\n+\t#define GMII_PHY_PHYSR_GIGA\t0x8000\n+\t#define GMII_PHY_PHYSR_100\t0x4000\n+\t#define GMII_PHY_PHYSR_FULL\t0x2000\n+\t#define GMII_PHY_PHYSR_LINK\t0x400\n+\n+#define GMII_LED_ACT\t\t\t\t0x1a\n+\t#define\tGMII_LED_ACTIVE_MASK\t0xff8f\n+\t#define\tGMII_LED0_ACTIVE\tBIT(4)\n+\t#define\tGMII_LED1_ACTIVE\tBIT(5)\n+\t#define\tGMII_LED2_ACTIVE\tBIT(6)\n+\n+#define GMII_LED_LINK\t\t\t\t0x1c\n+\t#define\tGMII_LED_LINK_MASK\t0xf888\n+\t#define\tGMII_LED0_LINK_10\tBIT(0)\n+\t#define\tGMII_LED0_LINK_100\tBIT(1)\n+\t#define\tGMII_LED0_LINK_1000\tBIT(2)\n+\t#define\tGMII_LED1_LINK_10\tBIT(4)\n+\t#define\tGMII_LED1_LINK_100\tBIT(5)\n+\t#define\tGMII_LED1_LINK_1000\tBIT(6)\n+\t#define\tGMII_LED2_LINK_10\tBIT(8)\n+\t#define\tGMII_LED2_LINK_100\tBIT(9)\n+\t#define\tGMII_LED2_LINK_1000\tBIT(10)\n+\t#define\tLED0_ACTIVE\t\tBIT(0)\n+\t#define\tLED0_LINK_10\t\tBIT(1)\n+\t#define\tLED0_LINK_100\t\tBIT(2)\n+\t#define\tLED0_LINK_1000\t\tBIT(3)\n+\t#define\tLED0_FD\t\t\tBIT(4)\n+\t#define\tLED0_USB3_MASK\t\t0x001f\n+\t#define\tLED1_ACTIVE\t\tBIT(5)\n+\t#define\tLED1_LINK_10\t\tBIT(6)\n+\t#define\tLED1_LINK_100\t\tBIT(7)\n+\t#define\tLED1_LINK_1000\t\tBIT(8)\n+\t#define\tLED1_FD\t\t\tBIT(9)\n+\t#define\tLED1_USB3_MASK\t\t0x03e0\n+\t#define\tLED2_ACTIVE\t\tBIT(10)\n+\t#define\tLED2_LINK_1000\t\tBIT(13)\n+\t#define\tLED2_LINK_100\t\tBIT(12)\n+\t#define\tLED2_LINK_10\t\tBIT(11)\n+\t#define\tLED2_FD\t\t\tBIT(14)\n+\t#define\tLED_VALID\t\tBIT(15)\n+\t#define\tLED2_USB3_MASK\t\t0x7c00\n+\n+#define GMII_PHYPAGE\t\t\t\t0x1e\n+#define GMII_PHY_PAGE_SELECT\t\t\t0x1f\n+\t#define GMII_PHY_PGSEL_EXT\t0x0007\n+\t#define GMII_PHY_PGSEL_PAGE0\t0x0000\n+\t#define GMII_PHY_PGSEL_PAGE3\t0x0003\n+\t#define GMII_PHY_PGSEL_PAGE5\t0x0005\n+\n+/* TX Descriptor */\n+#define AX179A_TX_DESC_LEN_MASK\t\t0x1FFFFF\n+#define AX179A_TX_DESC_DROP_PADD\tBIT(28)\n+#define AX179A_TX_DESC_VLAN\t\tBIT(29)\n+#define AX179A_TX_DESC_MSS_MASK\t\t0x7FFF\n+#define AX179A_TX_DESC_MSS_SHIFT\t0x20\n+#define AX179A_TX_DESC_VLAN_MASK\t0xFFFF\n+#define AX179A_TX_DESC_VLAN_SHIFT\t0x30\n+\n+/* RX Packet Descriptor */\n+#define AX179A_RX_PD_L4_ERR\t\tBIT(0)\n+#define AX179A_RX_PD_L3_ERR\t\tBIT(1)\n+#define AX179A_RX_PD_L4_TYPE_MASK\t0x1C\n+#define AX179A_RX_PD_L4_UDP\t\t0x04\n+#define AX179A_RX_PD_L4_TCP\t\t0x10\n+#define AX179A_RX_PD_L3_TYPE_MASK\t0x60\n+#define AX179A_RX_PD_L3_IP\t\t0x20\n+#define AX179A_RX_PD_L3_IP6\t\t0x40\n+\n+#define AX179A_RX_PD_VLAN\t\tBIT(10)\n+#define AX179A_RX_PD_RX_OK\t\tBIT(11)\n+#define AX179A_RX_PD_DROP\t\tBIT(31)\n+#define AX179A_RX_PD_LEN_MASK\t0x7FFF0000\n+#define AX179A_RX_PD_LEN_SHIFT\t0x10\n+#define AX179A_RX_PD_VLAN_SHIFT\t0x20\n+\n+/* RX Descriptor header */\n+#define AX179A_RX_DH_PKT_CNT_MASK\t\t0x1FFF\n+#define AX179A_RX_DH_DESC_OFFSET_MASK\t0xFFFFE000\n+#define AX179A_RX_DH_DESC_OFFSET_SHIFT\t0x0D\n+\n+#define AX179A_RX_HW_PAD\t\t\t0x02\n+\n+#define AX_ADVERTISE_2500\t\t0x1000\n+\n+enum ax_ether_link_speed {\n+\tETHER_LINK_NONE = 0,\n+\tETHER_LINK_10 = 1,\n+\tETHER_LINK_100 = 2,\n+\tETHER_LINK_1000 = 3,\n+\tETHER_LINK_2500 = 4,\n+};\n+\n+enum ax_chip_version {\n+\tAX_VERSION_INVALID\t\t= 0x0,\n+\tAX_VERSION_AX88179\t\t= 0x4,\n+\tAX_VERSION_AX88179A\t\t= 0x6,\t/* Also AX88772D */\n+\tAX_VERSION_AX88279\t\t= 0x7,\n+};\n+\n+struct ax88179_data {\n+\tu8 eee_enabled;\n+\tu8 eee_active;\n+\tu16 rxctl;\n+\tu8 in_pm;\n+\tu32 wol_supported;\n+\tu32 wolopts;\n+\tu8 disconnecting;\n+\tu8 chip_version;\n+\tu8 fw_version[4];\n+\tu8 is_ax88772d;\n+\tu8 ip_align;\n+\tu8 link;\n+\tu8 speed;\n+\tu8 full_duplex;\n+\tu8 rx_checksum;\n+\tu8 eeprom_read_cmd;\n+\tu8 eeprom_write_cmd;\n+\tu8 eeprom_wen;\n+\tu16 eeprom_block;\n+\tstruct mii_bus *mdio;\n+\tstruct phy_device *phydev;\n+\tstruct phylink *phylink;\n+\tstruct phylink_config phylink_config;\n+\tint (*resume)(struct usb_interface *intf);\n+\tint (*suspend)(struct usb_interface *intf, pm_message_t message);\n+};\n+\n+struct ax88179_int_data {\n+\t__le32 intdata1;\n+\t__le32 intdata2;\n+};\n+\n+struct ax_bulkin_settings {\n+\tunsigned char ctrl, timer_l, timer_h, size, ifg;\n+};\n+\n+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode);\n+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);\n+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);\n+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size,\n+\t\t const void *data);\n+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,\n+\t\t\t u16 size, void *data);\n+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc);\n+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val);\n+struct ax88179_data *netdev2data(struct net_device *net);\n+void ax88179_status(struct usbnet *dev, struct urb *urb);\n+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);\n+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);\n+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);\n+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);\n+void ax88179_set_multicast(struct net_device *net);\n+int ax88179_set_features(struct net_device *net, netdev_features_t features);\n+void ax88179_get_mac_addr(struct usbnet *dev);\n+int ax88179_change_mtu(struct net_device *net, int new_mtu);\n+int ax88179_set_mac_addr(struct net_device *net, void *p);\n+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message);\n+int ax88179_resume_wrapper(struct usb_interface *intf);\n+\n+extern const struct driver_info ax88179a_info;\n+extern const struct driver_info ax88772d_info;\n+extern const struct driver_info ax88279_info;\n+\n+#endif /*__LINUX_USBNET_AX88179_H */\ndiff --git a/drivers/net/usb/ax88179a_devices.c b/drivers/net/usb/ax88179a_devices.c\nnew file mode 100644\nindex 0000000000000..7408ac8c87a84\n--- /dev/null\n+++ b/drivers/net/usb/ax88179a_devices.c\n@@ -0,0 +1,1210 @@\n+// SPDX-License-Identifier: GPL-2.0-or-later\n+\n+#include \u003clinux/module.h\u003e\n+#include \u003clinux/phylink.h\u003e\n+#include \u003clinux/if_vlan.h\u003e\n+#include \"ax88179_lib.h\"\n+\n+static int ax88179a_reset(struct usbnet *dev);\n+\n+#define AX88279_EEPROM_LEN\t\t\t0x4000\n+#define AX88179A_EEPROM_LEN\t\t\t(32 * 20)\n+\n+enum ax_bulk_in_speeds {\n+\tBULK_IN_SPEED_2G5 = 0,\n+\tBULK_IN_SPEED_1G_SS = 1,\n+\tBULK_IN_SPEED_1G_HS = 2,\n+\tBULK_IN_SPEED_100_FULL_SS = 3,\n+\tBULK_IN_SPEED_100_HALF_SS = 4,\n+\tBULK_IN_SPEED_100_FULL_HS = 5,\n+\tBULK_IN_SPEED_100_HALF_HS = 6,\n+\tBULK_IN_SPEED_FS = 7,\n+};\n+\n+static const struct ax_bulkin_settings AX88179A_BULKIN_SIZE[] = {\n+\t[BULK_IN_SPEED_1G_SS]\t\t= {5, 0x7B, 0x00, 0x17, 0x0F},\n+\t[BULK_IN_SPEED_1G_HS]\t\t= {5, 0xC0, 0x02, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_100_FULL_SS]\t= {7, 0xF0, 0x00, 0x0C, 0x0F},\n+\t[BULK_IN_SPEED_100_HALF_SS]\t= {6, 0x00, 0x00, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_100_FULL_HS]\t= {5, 0xC0, 0x04, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_100_HALF_HS]\t= {7, 0xC0, 0x04, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_FS]\t\t= {7, 0x00, 0x00, 0x03, 0x3F},\n+};\n+\n+static const struct ax_bulkin_settings AX88772D_BULKIN_SIZE[] = {\n+\t[BULK_IN_SPEED_100_FULL_HS]\t= {5, 0xC0, 0x04, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_100_HALF_HS]\t= {7, 0xC0, 0x04, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_FS]\t\t= {7, 0x00, 0x00, 0x03, 0x3F},\n+};\n+\n+static const struct ax_bulkin_settings AX88279_BULKIN_SIZE[] = {\n+\t[BULK_IN_SPEED_2G5]\t\t= {5, 0x10, 0x01, 0x11, 0x0F},\n+\t[BULK_IN_SPEED_1G_SS]\t\t= {7, 0xB3, 0x01, 0x11, 0x0F},\n+\t[BULK_IN_SPEED_1G_HS]\t\t= {7, 0xC0, 0x02, 0x06, 0x0F},\n+\t[BULK_IN_SPEED_100_FULL_SS]\t= {7, 0x80, 0x01, 0x03, 0x0F},\n+\t[BULK_IN_SPEED_100_HALF_SS]\t= {7, 0x80, 0x01, 0x03, 0x0F},\n+\t[BULK_IN_SPEED_100_FULL_HS]\t= {7, 0x80, 0x01, 0x03, 0x0F},\n+\t[BULK_IN_SPEED_100_HALF_HS]\t= {7, 0x80, 0x01, 0x03, 0x0F},\n+\t[BULK_IN_SPEED_FS]\t\t= {7, 0x00, 0x00, 0x03, 0x3F},\n+};\n+\n+static int ax88179_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum)\n+{\n+\tstruct usbnet *dev = bus-\u003epriv;\n+\tstruct ax88179_data *priv;\n+\tu16 res;\n+\n+\tpriv = dev-\u003edriver_priv;\n+\t/* When reading PHYSID, return unused PHY-IDs from the ASIX vendor range */\n+\tif (phy_id == AX88179_PHY_ID \u0026\u0026 regnum == MII_PHYSID1)\n+\t\treturn 0x003b;\n+\tif (phy_id == AX88179_PHY_ID \u0026\u0026 regnum == MII_PHYSID2) {\n+\t\tif (priv-\u003echip_version == AX_VERSION_AX88179A \u0026\u0026 priv-\u003eis_ax88772d)\n+\t\t\treturn 0x772d;\n+\t\telse if (priv-\u003echip_version == AX_VERSION_AX88179A)\n+\t\t\treturn 0x179a;\n+\t\telse if (priv-\u003echip_version == AX_VERSION_AX88279)\n+\t\t\treturn 0x2790;\n+\t}\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, \u0026res);\n+\treturn res;\n+}\n+\n+static int ax88179_mdiobus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val)\n+{\n+\tstruct usbnet *dev = bus-\u003epriv;\n+\n+\treturn ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, \u0026val);\n+}\n+\n+static int ax179a_read_mmd(struct usbnet *dev, u16 dev_addr, u16 reg)\n+{\n+\tu16 res;\n+\tint ret;\n+\n+\tret = ax88179_read_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, \u0026res);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\treturn res;\n+}\n+\n+static int ax179a_write_mmd(struct usbnet *dev, u16 dev_addr, u16 reg, u16 data)\n+{\n+\treturn ax88179_write_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, \u0026data);\n+}\n+\n+static int ax88179_mdiobus_read_c45(struct mii_bus *bus, int addr, int devnum, int regnum)\n+{\n+\tstruct usbnet *dev = bus-\u003epriv;\n+\n+\tif (addr != AX88179_PHY_ID)\n+\t\treturn -EINVAL;\n+\n+\treturn ax179a_read_mmd(dev, devnum, regnum);\n+}\n+\n+static int ax88179_mdiobus_write_c45(struct mii_bus *bus, int addr, int devnum,\n+\t\t\t\t int regnum, u16 val)\n+{\n+\tstruct usbnet *dev = bus-\u003epriv;\n+\n+\tif (addr != AX88179_PHY_ID)\n+\t\treturn -EINVAL;\n+\n+\treturn ax179a_write_mmd(dev, devnum, regnum, val);\n+}\n+\n+static void ax88179a_status(struct usbnet *dev, struct urb *urb)\n+{\n+\tif (urb-\u003eactual_length \u003c 8)\n+\t\treturn;\n+\n+\tphylink_mac_interrupt(data-\u003ephylink);\n+}\n+\n+static int ax88179a_suspend(struct usb_interface *intf, pm_message_t message)\n+{\n+\tstruct usbnet *dev = usb_get_intfdata(intf);\n+\tstruct ax88179_data *priv;\n+\tu16 tmp16;\n+\tu8 tmp8;\n+\n+\tpriv = dev-\u003edriver_priv;\n+\tax88179_set_pm_mode(dev, true);\n+\n+\tif (netif_running(dev-\u003enet)) {\n+\t\trtnl_lock();\n+\t\tphylink_suspend(priv-\u003ephylink, !!priv-\u003ewolopts);\n+\t\trtnl_unlock();\n+\t}\n+\n+\t/* Enable WoL */\n+\tif (priv-\u003ewolopts) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, \u0026tmp8);\n+\t\tif (priv-\u003ewolopts \u0026 WAKE_PHY)\n+\t\t\ttmp8 |= AX_MONITOR_MODE_RWLC;\n+\t\tif (priv-\u003ewolopts \u0026 WAKE_MAGIC)\n+\t\t\ttmp8 |= AX_MONITOR_MODE_RWMP;\n+\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, \u0026tmp8);\n+\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026tmp16);\n+\t\ttmp16 |= AX_MEDIUM_RECEIVE_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026tmp16);\n+\n+\t\tif (priv-\u003echip_version == AX_VERSION_AX88279)\n+\t\t\tax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8,\n+\t\t\t\t\t EPHY_LOW_POWER_EN | S5_WOL_EN\n+\t\t\t\t\t | S5_WOL_LOW_POWER | 0x8000, 0, NULL);\n+\t\telse\n+\t\t\tax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 0,\n+\t\t\t\t\t EPHY_LOW_POWER_EN, 0, NULL);\n+\n+\t} else if (priv-\u003echip_version == AX_VERSION_AX88279) {\n+\t\tax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8, 0x8000, 0, NULL);\n+\t}\n+\n+\tusbnet_suspend(intf, message);\n+\tax88179_set_pm_mode(dev, false);\n+\treturn 0;\n+}\n+\n+static int ax88179a_auto_detach(struct usbnet *dev)\n+{\n+\tu16 tmp16;\n+\n+\ttmp16 = AX88179A_AUTODETACH_DELAY;\n+\tax88179_write_cmd(dev, AX88179A_AUTODETACH, tmp16, 0, 0, NULL);\n+\treturn 0;\n+}\n+\n+static int ax88179a_resume(struct usb_interface *intf)\n+{\n+\tstruct usbnet *dev = usb_get_intfdata(intf);\n+\tstruct ax88179_data *ax179_data;\n+\tu8 reg8;\n+\n+\tax179_data = dev-\u003edriver_priv;\n+\tax88179_set_pm_mode(dev, true);\n+\n+\tax88179_read_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026reg8);\n+\tif (!(reg8 \u0026 AX_PHY_POWER)) {\n+\t\treg8 = AX_PHY_POWER;\n+\t\tax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026reg8);\n+\t\tmsleep(250);\n+\t}\n+\tax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);\n+\n+\t/* Now, that AX_FW_MODE_179A is enabled, the PHY needs a power-cycle.\n+\t * PHY-power is re-enabled in ax88179_reset()\n+\t */\n+\treg8 = 0;\n+\tax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026reg8);\n+\tmsleep(250);\n+\n+\tax88179a_reset(dev);\n+\n+\tif (netif_running(dev-\u003enet)) {\n+\t\trtnl_lock();\n+\t\tphylink_resume(ax179_data-\u003ephylink);\n+\t\trtnl_unlock();\n+\t}\n+\n+\tax88179_set_pm_mode(dev, false);\n+\n+\treturn usbnet_resume(intf);\n+}\n+\n+static void ax88179a_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)\n+{\n+\tstruct ax88179_data *priv = netdev2data(net);\n+\n+\t/* Inherit standard device info */\n+\tusbnet_get_drvinfo(net, info);\n+\tif (priv-\u003echip_version \u003c AX_VERSION_AX88179A)\n+\t\treturn;\n+\n+\tsnprintf(info-\u003efw_version, sizeof(info-\u003efw_version), \"%d.%d.%d.%d\",\n+\t\t priv-\u003efw_version[0], priv-\u003efw_version[1],\n+\t\t priv-\u003efw_version[2], priv-\u003efw_version[3]);\n+}\n+\n+static void ax88179a_bulkin_config(struct usbnet *dev, u8 link_sts, u8 speed, bool full_duplex)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tconst struct ax_bulkin_settings *bulkin_data;\n+\tint index = 0;\n+\n+\tswitch (speed) {\n+\tcase ETHER_LINK_2500:\t/* AX88279 only */\n+\t\tindex = BULK_IN_SPEED_2G5;\n+\t\tbreak;\n+\n+\tcase ETHER_LINK_1000:\t/* AX88279 \u0026 AX88178A */\n+\t\tif (link_sts \u0026 AX_USB_SS)\n+\t\t\tindex = BULK_IN_SPEED_1G_SS;\n+\t\telse if (link_sts \u0026 AX_USB_HS)\n+\t\t\tindex = BULK_IN_SPEED_1G_HS;\n+\t\tbreak;\n+\n+\tcase ETHER_LINK_100:\n+\t\tif (link_sts \u0026 AX_USB_SS)\n+\t\t\tindex = BULK_IN_SPEED_100_FULL_SS;\n+\t\telse if (link_sts \u0026 AX_USB_HS)\n+\t\t\tindex = BULK_IN_SPEED_100_FULL_HS;\n+\t\tif (!full_duplex)\n+\t\t\tindex++;\n+\t\tbreak;\n+\n+\tcase ETHER_LINK_10:\n+\t\tindex = BULK_IN_SPEED_FS;\n+\t\tbreak;\n+\n+\tdefault:\t/* No link */\n+\t\tindex = BULK_IN_SPEED_FS;\n+\t}\n+\n+\tif (ax179_data-\u003echip_version == AX_VERSION_AX88279 \u0026\u0026 (link_sts \u0026 AX_USB_FS))\n+\t\tindex = BULK_IN_SPEED_FS;\n+\n+\tif (ax179_data-\u003echip_version == AX_VERSION_AX88279) {\n+\t\tbulkin_data = AX88279_BULKIN_SIZE;\n+\t} else {\n+\t\tif (ax179_data-\u003eis_ax88772d)\n+\t\t\tbulkin_data = AX88772D_BULKIN_SIZE;\n+\t\telse\n+\t\t\tbulkin_data = AX88179A_BULKIN_SIZE;\n+\t}\n+\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, \u0026bulkin_data[index]);\n+}\n+\n+static void ax88179a_get_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)\n+{\n+\tstruct ax88179_data *data = netdev2data(net);\n+\n+\tphylink_ethtool_get_pauseparam(data-\u003ephylink, pause);\n+}\n+\n+static int ax88179a_set_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)\n+{\n+\tstruct ax88179_data *data = netdev2data(net);\n+\n+\treturn phylink_ethtool_set_pauseparam(data-\u003ephylink, pause);\n+}\n+\n+static int ax88179a_get_eeprom_len(struct net_device *net)\n+{\n+\tstruct ax88179_data *ax179_data = netdev2data(net);\n+\n+\tif (ax179_data-\u003echip_version \u003e= AX_VERSION_AX88279)\n+\t\treturn AX88279_EEPROM_LEN;\n+\telse\n+\t\treturn AX88179A_EEPROM_LEN;\n+}\n+\n+static int ax88179a_get_eee(struct net_device *net, struct ethtool_keee *edata)\n+{\n+\tstruct ax88179_data *ax179_data = netdev2data(net);\n+\n+\treturn phylink_ethtool_get_eee(ax179_data-\u003ephylink, edata);\n+}\n+\n+static int ax88179a_set_eee(struct net_device *net, struct ethtool_keee *edata)\n+{\n+\tstruct ax88179_data *ax179_data = netdev2data(net);\n+\n+\treturn phylink_ethtool_set_eee(ax179_data-\u003ephylink, edata);\n+}\n+\n+static const struct ethtool_ops ax88179a_ethtool_ops = {\n+\t.get_drvinfo = ax88179a_get_drvinfo,\n+\t.get_link\t\t= ethtool_op_get_link,\n+\t.get_msglevel\t\t= usbnet_get_msglevel,\n+\t.set_msglevel\t\t= usbnet_set_msglevel,\n+\t.get_wol\t\t= ax88179_get_wol,\n+\t.set_wol\t\t= ax88179_set_wol,\n+\t.get_eeprom_len\t\t= ax88179a_get_eeprom_len,\n+\t.get_eeprom\t\t= ax88179_get_eeprom,\n+\t.set_eeprom\t\t= ax88179_set_eeprom,\n+\t.get_eee\t\t= ax88179a_get_eee,\n+\t.set_eee\t\t= ax88179a_set_eee,\n+\t.nway_reset\t\t= usbnet_nway_reset,\n+\t.get_link_ksettings\t= phy_ethtool_get_link_ksettings,\n+\t.set_link_ksettings\t= phy_ethtool_set_link_ksettings,\n+\t.get_pauseparam\t\t= ax88179a_get_pauseparam,\n+\t.set_pauseparam\t\t= ax88179a_set_pauseparam,\n+\t.get_ts_info\t\t= ethtool_op_get_ts_info,\n+};\n+\n+static int ax88179a_vlan_rx_kill_vid(struct net_device *net, __be16 proto, u16 vid)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tu8 vlan_ctrl;\n+\tu16 reg16;\n+\tu8 reg8;\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\tvlan_ctrl = reg8;\n+\n+\t/* Address */\n+\treg8 = (vid / 16);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\n+\n+\t/* Data */\n+\treg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, \u0026reg16);\n+\treg16 \u0026= ~(1 \u003c\u003c (vid % 16));\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, \u0026reg16);\n+\n+\treg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\n+\treturn 0;\n+}\n+\n+static int ax88179a_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tu8 vlan_ctrl;\n+\tu16 reg16;\n+\tu8 reg8;\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\tvlan_ctrl = reg8;\n+\n+\t/* Address */\n+\treg8 = (vid / 16);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\n+\n+\t/* Data */\n+\treg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, \u0026reg16);\n+\treg16 |= (1 \u003c\u003c (vid % 16));\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, \u0026reg16);\n+\n+\treg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n+\n+\treturn 0;\n+}\n+\n+static void ax88179a_mdio_unregister(struct ax88179_data *data)\n+{\n+\tmdiobus_unregister(data-\u003emdio);\n+\tmdiobus_free(data-\u003emdio);\n+}\n+\n+static int ax88179a_init_phy(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *data = dev-\u003edriver_priv;\n+\tint ret;\n+\n+\tdata-\u003ephydev = mdiobus_get_phy(data-\u003emdio, AX88179_PHY_ID);\n+\tif (!data-\u003ephydev) {\n+\t\tnetdev_err(dev-\u003enet, \"Could not find PHY\\n\");\n+\t\treturn -ENODEV;\n+\t}\n+\n+\tdata-\u003ephydev-\u003eirq = PHY_MAC_INTERRUPT;\n+\tret = phylink_connect_phy(data-\u003ephylink, data-\u003ephydev);\n+\tif (ret) {\n+\t\tnetdev_err(dev-\u003enet, \"Could not connect PHY\\n\");\n+\t\treturn ret;\n+\t}\n+\n+\tphy_suspend(data-\u003ephydev);\n+\tdata-\u003ephydev-\u003emac_managed_pm = true;\n+\n+\tphy_attached_info(data-\u003ephydev);\n+\n+\treturn 0;\n+}\n+\n+static void ax88179a_mac_config(struct phylink_config *config, unsigned int mode,\n+\t\t\t\tconst struct phylink_link_state *state)\n+{\n+\t/* Nothing to do */\n+}\n+\n+static void ax88179a_mac_link_down(struct phylink_config *config,\n+\t\t\t\t unsigned int mode, phy_interface_t interface)\n+{\n+\t/* Nothing to do */\n+}\n+\n+static void ax88179a_mac_link_up(struct phylink_config *config,\n+\t\t\t\t struct phy_device *phy,\n+\t\t\t\t unsigned int phy_mode, phy_interface_t interface,\n+\t\t\t\t int speed, int duplex,\n+\t\t\t\t bool tx_pause, bool rx_pause)\n+{\n+\tstruct usbnet *dev = netdev_priv(to_net_dev(config-\u003edev));\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tu8 tmp8, link_sts, reg8[3];\n+\tu8 bulk_config_speed = 0;\n+\tu16 tmp16, mode;\n+\n+\t/* Stop RX/TX for link configuration */\n+\ttmp16 = AX_RX_CTL_STOP;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, \u0026tmp16);\n+\ttmp8 = 0;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, \u0026tmp8);\n+\n+\ttmp8 = 0xa5;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_CDC_DELAY_TX, 1, 1, \u0026tmp8);\n+\n+\ttmp16 = 0x0410;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 2, 2, \u0026tmp16);\n+\n+\ttmp8 = 0;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_ETH_TX_GAP, 1, 1, \u0026tmp8);\n+\n+\ttmp8 = 0x07;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_EP5_EHR, 1, 1, \u0026tmp8);\n+\n+\ttmp8 = 0x28 | AX_NEW_PAUSE_EN;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_NEW_PAUSE_CTRL, 1, 1, \u0026tmp8);\n+\n+\tmode = AX_MEDIUM_RECEIVE_EN;\n+\tif (tx_pause)\n+\t\tmode |= AX_MEDIUM_TXFLOW_CTRLEN;\n+\tif (rx_pause)\n+\t\tmode |= AX_MEDIUM_RXFLOW_CTRLEN;\n+\n+\tswitch (speed) {\n+\tcase SPEED_2500:\n+\t\treg8[0] = 0x00;\n+\t\treg8[1] = 0xF8;\n+\t\treg8[2] = 0x07;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_TX_PAUSE, 3, 3, reg8);\n+\n+\t\treg8[0] = 0x78;\n+\t\treg8[1] = (AX_LSOFC_WCNT_7_ACCESS \u003c\u003c 5);\n+\t\treg8[2] = 0;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);\n+\n+\t\treg8[0] = 0x40;\n+\t\treg8[1] = AX_MAC_MIQFFCTRL_FORMAT | AX_MAC_MIQFFCTRL_DROP_CRC | AX_MAC_LSO_ERR_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 2, 2, reg8);\n+\n+\t\ttmp8 = AX_XGMII_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, \u0026tmp8);\n+\n+\t\ttmp8 = 0x1C | AX_LSO_ENHANCE_EN;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_LSO_ENHANCE_CTRL, 1, 1, \u0026tmp8);\n+\n+\t\tmode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_FULL_DUPLEX;\n+\t\tbulk_config_speed = ETHER_LINK_2500;\n+\n+\t\tbreak;\n+\n+\tcase SPEED_1000:\n+\t\tmode |= AX_MEDIUM_GIGAMODE;\n+\t\tbulk_config_speed = ETHER_LINK_1000;\n+\t\tfallthrough;\n+\n+\tcase SPEED_100:\n+\t\treg8[0] = 0x78;\n+\t\treg8[1] = (AX_LSOFC_WCNT_7_ACCESS \u003c\u003c 5) | AX_GMII_CRC_APPEND;\n+\t\treg8[2] = 0;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);\n+\n+\t\ttmp8 = 0x40;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, \u0026tmp8);\n+\t\tif (!bulk_config_speed)\n+\t\t\tbulk_config_speed = ETHER_LINK_100;\n+\t\tbreak;\n+\n+\tcase SPEED_10:\n+\t\treg8[0] = 0xFA;\n+\t\treg8[1] = (AX_LSOFC_WCNT_7_ACCESS \u003c\u003c 5) | AX_GMII_CRC_APPEND;\n+\t\treg8[2] = 0xFF;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);\n+\n+\t\ttmp8 = 0xFA;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, \u0026tmp8);\n+\n+\t\tbulk_config_speed = ETHER_LINK_10;\n+\t\tbreak;\n+\t}\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 1, 1, \u0026link_sts);\n+\tax88179a_bulkin_config(dev, link_sts, bulk_config_speed, !!duplex);\n+\n+\tif (ax179_data-\u003echip_version \u003c AX_VERSION_AX88279) {\n+\t\ttmp8 = 0;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, \u0026tmp8);\n+\t}\n+\n+\tif (duplex)\n+\t\tmode |= AX_MEDIUM_FULL_DUPLEX;\n+\n+\tif (dev-\u003enet-\u003emtu \u003e 1500)\n+\t\tmode |= AX_MEDIUM_JUMBO_EN;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026mode);\n+\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, \u0026ax179_data-\u003erxctl);\n+\n+\ttmp8 = AX_MAC_RX_PATH_READY | AX_MAC_TX_PATH_READY;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, \u0026tmp8);\n+}\n+\n+static void ax88179a_mac_disable_tx_lpi(struct phylink_config *config)\n+{\n+\tstruct usbnet *dev = netdev_priv(to_net_dev(config-\u003edev));\n+\n+\tax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, false, 0, NULL);\n+}\n+\n+static int ax88179a_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, bool tx_clk_stop)\n+{\n+\tstruct usbnet *dev = netdev_priv(to_net_dev(config-\u003edev));\n+\n+\t/* AX88179A does not provide LPI timer registers */\n+\treturn ax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, true, 0, NULL);\n+}\n+\n+static const struct phylink_mac_ops ax88179a_phylink_mac_ops = {\n+\t.mac_config = ax88179a_mac_config,\n+\t.mac_link_down = ax88179a_mac_link_down,\n+\t.mac_link_up = ax88179a_mac_link_up,\n+\t.mac_disable_tx_lpi = ax88179a_mac_disable_tx_lpi,\n+\t.mac_enable_tx_lpi = ax88179a_mac_enable_tx_lpi,\n+};\n+\n+static int ax88179a_phylink_setup(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *data = dev-\u003edriver_priv;\n+\tphy_interface_t phy_if_mode;\n+\tstruct phylink *phylink;\n+\n+\tdata-\u003ephylink_config.dev = \u0026dev-\u003enet-\u003edev;\n+\tdata-\u003ephylink_config.type = PHYLINK_NETDEV;\n+\tdata-\u003ephylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_100;\n+\tif (data-\u003eis_ax88772d)\n+\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_10;\n+\telse if (data-\u003echip_version \u003c AX_VERSION_AX88279)\n+\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_10 | MAC_1000;\n+\telse\n+\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_1000 | MAC_2500FD;\n+\n+\tif (!data-\u003eis_ax88772d) {\n+\t\tdata-\u003ephylink_config.lpi_capabilities = MAC_100FD | MAC_1000FD;\n+\t\tdata-\u003ephylink_config.eee_enabled_default = false;\n+\t}\n+\n+\tif (data-\u003echip_version == AX_VERSION_AX88279) {\n+\t\t__set_bit(PHY_INTERFACE_MODE_2500BASEX,\n+\t\t\t data-\u003ephylink_config.supported_interfaces);\n+\t\t__set_bit(PHY_INTERFACE_MODE_SGMII,\n+\t\t\t data-\u003ephylink_config.supported_interfaces);\n+\t\tphy_if_mode = PHY_INTERFACE_MODE_2500BASEX;\n+\t} else {\n+\t\t__set_bit(PHY_INTERFACE_MODE_SGMII,\n+\t\t\t data-\u003ephylink_config.supported_interfaces);\n+\t\tphy_if_mode = PHY_INTERFACE_MODE_SGMII;\n+\t}\n+\n+\tmemcpy(data-\u003ephylink_config.lpi_interfaces,\n+\t data-\u003ephylink_config.supported_interfaces,\n+\t sizeof(data-\u003ephylink_config.lpi_interfaces));\n+\n+\tphylink = phylink_create(\u0026data-\u003ephylink_config, dev-\u003enet-\u003edev.fwnode,\n+\t\t\t\t phy_if_mode, \u0026ax88179a_phylink_mac_ops);\n+\tif (IS_ERR(phylink))\n+\t\treturn PTR_ERR(phylink);\n+\n+\tdata-\u003ephylink = phylink;\n+\treturn 0;\n+}\n+\n+static int ax88179a_init_mdio(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *data = dev-\u003edriver_priv;\n+\tint ret;\n+\n+\tdata-\u003emdio = mdiobus_alloc();\n+\tif (!data-\u003emdio)\n+\t\treturn -ENOMEM;\n+\n+\tdata-\u003emdio-\u003epriv = dev;\n+\tdata-\u003emdio-\u003eread = ax88179_mdiobus_read;\n+\tdata-\u003emdio-\u003ewrite = ax88179_mdiobus_write;\n+\tdata-\u003emdio-\u003eread_c45 = ax88179_mdiobus_read_c45;\n+\tdata-\u003emdio-\u003ewrite_c45 = ax88179_mdiobus_write_c45;\n+\tdata-\u003emdio-\u003ename = \"AX88179A MDIO Bus\";\n+\tdata-\u003emdio-\u003ephy_mask = ~(1 \u003c\u003c AX88179_PHY_ID);\n+\t/* mii bus name is usb-\u003cusb bus number\u003e-\u003cusb device number\u003e */\n+\tsnprintf(data-\u003emdio-\u003eid, MII_BUS_ID_SIZE, \"usb-%03d:%03d\",\n+\t\t dev-\u003eudev-\u003ebus-\u003ebusnum, dev-\u003eudev-\u003edevnum);\n+\n+\tret = mdiobus_register(data-\u003emdio);\n+\tif (ret) {\n+\t\tnetdev_err(dev-\u003enet, \"Could not register MDIO bus (err %d)\\n\", ret);\n+\t\tmdiobus_free(data-\u003emdio);\n+\t\tdata-\u003emdio = NULL;\n+\t}\n+\n+\treturn ret;\n+}\n+\n+static int ax88179a_set_features(struct net_device *net, netdev_features_t features)\n+{\n+\tstruct usbnet *dev = netdev_priv(net);\n+\tnetdev_features_t changed;\n+\tint ret;\n+\tu8 tmp;\n+\n+\tchanged = net-\u003efeatures ^ features;\n+\n+\tret = ax88179_set_features(net, features);\n+\tif (ret)\n+\t\treturn ret;\n+\n+\tif (changed \u0026 NETIF_F_HW_VLAN_CTAG_FILTER) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026tmp);\n+\t\ttmp ^= AX_VLAN_CONTROL_VFE;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026tmp);\n+\t\tif (features \u0026 NETIF_F_HW_VLAN_CTAG_FILTER) {\n+\t\t\tfor (int i = 0; i \u003c 256; i++) {\n+\t\t\t\tu16 tmp16 = 0;\n+\t\t\t\t/* Address */\n+\t\t\t\ttmp = i;\n+\t\t\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS,\n+\t\t\t\t\t\t 1, 1, \u0026tmp);\n+\t\t\t\t/* Data */\n+\t\t\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0,\n+\t\t\t\t\t\t 2, 2, \u0026tmp16);\n+\t\t\t\ttmp = AX_VLAN_CONTROL_WE;\n+\t\t\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL,\n+\t\t\t\t\t\t 1, 1, \u0026tmp);\n+\t\t\t}\n+\t\t}\n+\t}\n+\n+\tif (changed \u0026 NETIF_F_HW_VLAN_CTAG_RX) {\n+\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026tmp);\n+\t\ttmp ^= AX_VLAN_CONTROL_VSO;\n+\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, \u0026tmp);\n+\t}\n+\n+\treturn 0;\n+}\n+\n+static const struct net_device_ops ax88179a_netdev_ops = {\n+\t.ndo_open\t\t= usbnet_open,\n+\t.ndo_stop\t\t= usbnet_stop,\n+\t.ndo_start_xmit\t\t= usbnet_start_xmit,\n+\t.ndo_tx_timeout\t\t= usbnet_tx_timeout,\n+\t.ndo_get_stats64\t= dev_get_tstats64,\n+\t.ndo_change_mtu\t\t= ax88179_change_mtu,\n+\t.ndo_set_mac_address\t= ax88179_set_mac_addr,\n+\t.ndo_validate_addr\t= eth_validate_addr,\n+\t.ndo_eth_ioctl\t\t= usbnet_mii_ioctl,\n+\t.ndo_set_rx_mode\t= ax88179_set_multicast,\n+\t.ndo_set_features\t= ax88179a_set_features,\n+\t.ndo_vlan_rx_add_vid\t= ax88179a_vlan_rx_add_vid,\n+\t.ndo_vlan_rx_kill_vid\t= ax88179a_vlan_rx_kill_vid,\n+};\n+\n+static int ax88179a_bind(struct usbnet *dev, struct usb_interface *intf)\n+{\n+\tstruct usb_device *udev = interface_to_usbdev(intf);\n+\tstruct ax88179_data *ax179_data;\n+\tint ret;\n+\tu8 reg8;\n+\n+\t/* Check if vendor configuration */\n+\tif (udev-\u003eactconfig-\u003edesc.bConfigurationValue != 1) {\n+\t\tnetdev_info(dev-\u003enet, \"Switching to vendor mode\\n\");\n+\t\tusb_driver_set_configuration(udev, 1);\n+\t\treturn -ENODEV;\n+\t}\n+\n+\tret = usbnet_get_endpoints(dev, intf);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\tax179_data = kzalloc_obj(*ax179_data);\n+\tif (!ax179_data)\n+\t\treturn -ENOMEM;\n+\n+\tdev-\u003edriver_priv = ax179_data;\n+\n+\tret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,\n+\t\t\t 1, 1, \u0026ax179_data-\u003echip_version);\n+\tif (ret \u003c 0)\n+\t\tgoto err_nodev;\n+\n+\tax179_data-\u003echip_version = (ax179_data-\u003echip_version \u0026 0xf0) \u003e\u003e 4;\n+\tax179_data-\u003eis_ax88772d = 0;\n+\tif (ax179_data-\u003echip_version == AX_VERSION_AX88179A) {\n+\t\tif (udev-\u003edescriptor.bcdDevice == 0x300)\n+\t\t\tax179_data-\u003eis_ax88772d = 1;\n+\t}\n+\n+\tfor (int i = 0; i \u003c 3; i++) {\n+\t\tret = ax88179_read_cmd(dev, AX88179A_ACCESS_BL, (0xFD + i),\n+\t\t\t\t 1, 1, \u0026ax179_data-\u003efw_version[i]);\n+\t\tif (ret \u003c 0)\n+\t\t\tax179_data-\u003efw_version[i] = 0xff;\n+\t}\n+\tnetdev_info(dev-\u003enet, \"AX88179A/279/772D Chip Version: %x, FW: %d.%d.%d.%d\\n\",\n+\t\t ax179_data-\u003echip_version,\n+\t\t ax179_data-\u003efw_version[0], ax179_data-\u003efw_version[1],\n+\t\t ax179_data-\u003efw_version[2], ax179_data-\u003efw_version[3]);\n+\n+\t/* The AX88279 requires both the AX_RX_CTL_IPE and AX_RX_CTL_DROPCRCERR\n+\t * bits set in AX_RX_CTL for creating correct RX-URBs. AX_RX_CTL_DROPCRCERR\n+\t * is anyway set for all chips, make sure AX_RX_CTL_IPE is set via ip_align.\n+\t * Also configure eeprom access parameters.\n+\t */\n+\tif (ax179_data-\u003echip_version == AX_VERSION_AX88279) {\n+\t\tax179_data-\u003eip_align = 1;\n+\t\tax179_data-\u003eeeprom_read_cmd = AX88179A_FLASH_READ;\n+\t\tax179_data-\u003eeeprom_write_cmd = AX88179A_FLASH_WRITE;\n+\t\tax179_data-\u003eeeprom_block = 256;\n+\t\tax179_data-\u003eeeprom_wen = 1;\n+\t} else {\n+\t\tax179_data-\u003eip_align = 0;\n+\t\tax179_data-\u003eeeprom_read_cmd = AX_ACCESS_EFUS;\n+\t\tax179_data-\u003eeeprom_write_cmd = AX_ACCESS_EFUS;\n+\t\tax179_data-\u003eeeprom_block = 20;\n+\t\tax179_data-\u003eeeprom_wen = 0;\n+\t}\n+\n+\tax179_data-\u003eresume = ax88179a_resume;\n+\tax179_data-\u003esuspend = ax88179a_suspend;\n+\n+\tdev-\u003enet-\u003enetdev_ops = \u0026ax88179a_netdev_ops;\n+\tdev-\u003enet-\u003eethtool_ops = \u0026ax88179a_ethtool_ops;\n+\tdev-\u003enet-\u003eneeded_headroom = 8;\n+\tdev-\u003enet-\u003eneeded_tailroom = 8;\n+\tdev-\u003enet-\u003emin_mtu = ETH_MIN_MTU;\n+\tdev-\u003ehard_mtu = 9 * 1024;\n+\tdev-\u003enet-\u003emax_mtu = dev-\u003ehard_mtu - dev-\u003enet-\u003ehard_header_len;\n+\n+\tif (!ax179_data-\u003eis_ax88772d)\n+\t\tdev-\u003emii.supports_gmii = 1;\n+\n+\tdev-\u003enet-\u003efeatures |= NETIF_F_SG | NETIF_F_IP_CSUM |\n+\t\t\t NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO |\n+\t\t\t NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |\n+\t\t\t NETIF_F_HW_VLAN_CTAG_FILTER;\n+\n+\tdev-\u003enet-\u003ehw_features |= dev-\u003enet-\u003efeatures;\n+\n+\tdev-\u003enet-\u003evlan_features = NETIF_F_SG | NETIF_F_IP_CSUM |\n+\t\t\t\t NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO;\n+\n+\tnetif_set_tso_max_size(dev-\u003enet, 16384);\n+\n+\t/* Enable Transmission of Link Speed byte in interrupt URB */\n+\tax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);\n+\tax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0, 0, 0, NULL);\n+\n+\t/* Read MAC address from DTB or ASIX chip */\n+\tax88179_get_mac_addr(dev);\n+\tmemcpy(dev-\u003enet-\u003eperm_addr, dev-\u003enet-\u003edev_addr, ETH_ALEN);\n+\n+\t/* Power PHY for probing */\n+\treg8 = AX_PHY_POWER;\n+\tax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026reg8);\n+\tmsleep(250);\n+\n+\tret = ax88179a_init_mdio(dev);\n+\tif (ret)\n+\t\tgoto err_nodev;\n+\n+\tret = ax88179a_phylink_setup(dev);\n+\tif (ret)\n+\t\tgoto phylink_err;\n+\n+\tret = ax88179a_init_phy(dev);\n+\tif (ret)\n+\t\tgoto initphy_err;\n+\n+\treturn 0;\n+\n+initphy_err:\n+\tphylink_destroy(ax179_data-\u003ephylink);\n+phylink_err:\n+\tax88179a_mdio_unregister(ax179_data);\n+err_nodev:\n+\tkfree(ax179_data);\n+\tax179_data = NULL;\n+\n+\treturn ret;\n+}\n+\n+static void ax88179a_unbind(struct usbnet *dev, struct usb_interface *intf)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tu16 tmp16;\n+\tu8 tmp8;\n+\n+\t/* Configure RX control register =\u003e stop operation */\n+\ttmp16 = AX_RX_CTL_STOP;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, \u0026tmp16);\n+\n+\trtnl_lock();\n+\tphylink_disconnect_phy(ax179_data-\u003ephylink);\n+\trtnl_unlock();\n+\tphylink_destroy(ax179_data-\u003ephylink);\n+\tax88179a_mdio_unregister(ax179_data);\n+\n+\ttmp8 = 0;\n+\tax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026tmp8);\n+\n+\tkfree(ax179_data);\n+}\n+\n+static void ax88179a_rx_checksum(struct sk_buff *skb, u64 pkt_desc)\n+{\n+\tu32 pkt_type;\n+\n+\tskb-\u003eip_summed = CHECKSUM_NONE;\n+\t/* checksum error bit is set */\n+\tif (pkt_desc \u0026 AX179A_RX_PD_L4_ERR || pkt_desc \u0026 AX179A_RX_PD_L3_ERR)\n+\t\treturn;\n+\n+\tpkt_type = pkt_desc \u0026 AX179A_RX_PD_L4_TYPE_MASK;\n+\t/* It must be a TCP or UDP packet with a valid checksum */\n+\tif (pkt_type == AX179A_RX_PD_L4_TCP || pkt_type == AX179A_RX_PD_L4_UDP)\n+\t\tskb-\u003eip_summed = CHECKSUM_UNNECESSARY;\n+}\n+\n+static int ax88179a_rx_fixup(struct usbnet *dev, struct sk_buff *skb)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tstruct sk_buff *ax_skb;\n+\tu32 hdr_off, pkt_end;\n+\tu64 *pkt_desc_ptr;\n+\tu16 vlan_tag;\n+\tu16 pkt_cnt;\n+\tu64 rx_hdr;\n+\n+\t/* SKB contents for AX179A-based chips:\n+\t * \u003cpacket 1\u003e\n+\t * ...\n+\t * \u003cpacket N\u003e\n+\t * \u003cper-packet metadata entry 1\u003e\n+\t * ...\n+\t * \u003cper-packet metadata entry N\u003e\n+\t * \u003crx_hdr\u003e\n+\t *\n+\t * where:\n+\t * \u003cpacket N\u003e contains pkt_len data bytes and padding:\n+\t *\t\t2 bytes of IP alignment (optional, depends on AX_RX_CTL_IPE flag)\n+\t *\t\tpacket data received\n+\t *\t\toptional padding to 8-bytes boundary\n+\t * \u003cper-packet metadata entry N\u003e contains 8 bytes:\n+\t *\t\tpkt_len and fields AX_RXHDR_*\n+\t * \u003crx-hdr\u003e\tcontains 8 bytes:\n+\t *\t\tpkt_cnt and hdr_off (offset of \u003cper-packet metadata entry 1\u003e)\n+\t *\n+\t * pkt_cnt is number of entries in the per-packet metadata array.\n+\t */\n+\n+\tif (!skb || skb-\u003elen \u003c sizeof(rx_hdr))\n+\t\tgoto err;\n+\n+\t/* RX Descriptor Header */\n+\tskb_trim(skb, skb-\u003elen - sizeof(rx_hdr));\n+\trx_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb));\n+\n+\t/* Check these packets */\n+\thdr_off = (rx_hdr \u0026 AX179A_RX_DH_DESC_OFFSET_MASK) \u003e\u003e AX179A_RX_DH_DESC_OFFSET_SHIFT;\n+\tpkt_cnt = rx_hdr \u0026 AX179A_RX_DH_PKT_CNT_MASK;\n+\n+\t/* Consistency check header position */\n+\tif (hdr_off != skb-\u003elen - (pkt_cnt * sizeof(rx_hdr)))\n+\t\tgoto err;\n+\n+\t/* Make sure that the bounds of the metadata array are inside the SKB\n+\t * (and in front of the counter at the end).\n+\t */\n+\tif (pkt_cnt * 8 + hdr_off \u003e skb-\u003elen)\n+\t\tgoto err;\n+\n+\t/* Packets must not overlap the metadata array */\n+\tskb_trim(skb, hdr_off);\n+\n+\tif (!pkt_cnt)\n+\t\tgoto err;\n+\n+\t/* Get the first RX packet descriptor */\n+\tpkt_desc_ptr = (u64 *)(skb-\u003edata + hdr_off);\n+\n+\tpkt_end = 0;\n+\twhile (pkt_cnt--) {\n+\t\tu64 pkt_desc = le64_to_cpup(pkt_desc_ptr);\n+\t\tu32 pkt_len_plus_padd;\n+\t\tu32 pkt_len;\n+\n+\t\tpkt_len = (u32)((pkt_desc \u0026 AX179A_RX_PD_LEN_MASK) \u003e\u003e AX179A_RX_PD_LEN_SHIFT)\n+\t\t\t - (ax179_data-\u003eip_align ? 2 : 0);\n+\t\tpkt_len_plus_padd = ((pkt_len + 7 + (ax179_data-\u003eip_align ? 2 : 0)) \u0026 0x7FFF8);\n+\n+\t\tpkt_end += pkt_len_plus_padd;\n+\t\tif (pkt_end \u003e hdr_off || (pkt_cnt == 0 \u0026\u0026 pkt_end != hdr_off))\n+\t\t\tgoto err;\n+\n+\t\tif (pkt_desc \u0026 AX179A_RX_PD_DROP || !(pkt_desc \u0026 AX179A_RX_PD_RX_OK) ||\n+\t\t pkt_len \u003e (dev-\u003ehard_mtu + AX179A_RX_HW_PAD)) {\n+\t\t\tskb_pull(skb, pkt_len_plus_padd);\n+\n+\t\t\t/* Next RX Packet Descriptor */\n+\t\t\tpkt_desc_ptr++;\n+\t\t\tcontinue;\n+\t\t}\n+\n+\t\tax_skb = netdev_alloc_skb_ip_align(dev-\u003enet, pkt_len);\n+\t\tif (!ax_skb)\n+\t\t\tgoto err;\n+\n+\t\tskb_put(ax_skb, pkt_len);\n+\t\tmemcpy(ax_skb-\u003edata, skb-\u003edata + (ax179_data-\u003eip_align ? AX179A_RX_HW_PAD : 0),\n+\t\t pkt_len);\n+\n+\t\tif (ax179_data-\u003erx_checksum)\n+\t\t\tax88179a_rx_checksum(ax_skb, pkt_desc);\n+\n+\t\tif (pkt_desc \u0026 AX179A_RX_PD_VLAN) {\n+\t\t\tvlan_tag = pkt_desc \u003e\u003e AX179A_RX_PD_VLAN_SHIFT;\n+\t\t\t__vlan_hwaccel_put_tag(ax_skb, htons(ETH_P_8021Q),\n+\t\t\t\t\t vlan_tag \u0026 VLAN_VID_MASK);\n+\t\t}\n+\n+\t\tusbnet_skb_return(dev, ax_skb);\n+\t\tskb_pull(skb, pkt_len_plus_padd);\n+\n+\t\t/* Next RX Packet Header */\n+\t\tpkt_desc_ptr++;\n+\t}\n+\n+\treturn 1;\n+\n+err:\n+\treturn 0;\n+}\n+\n+static struct sk_buff *ax88179a_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)\n+{\n+\tu64 tx_desc = skb-\u003elen \u0026 AX179A_TX_DESC_LEN_MASK;\n+\tint frame_size = dev-\u003emaxpacket;\n+\tstruct sk_buff *ax_skb;\n+\tu64 *tx_desc_ptr;\n+\tint padding_size;\n+\tint headroom;\n+\tint tailroom;\n+\tu16 tci = 0;\n+\n+\t/* TSO MSS */\n+\ttx_desc |= ((u64)(skb_shinfo(skb)-\u003egso_size \u0026 AX179A_TX_DESC_MSS_MASK)) \u003c\u003c\n+\t\t AX179A_TX_DESC_MSS_SHIFT;\n+\n+\theadroom = (skb-\u003elen + sizeof(tx_desc)) % 8;\n+\tpadding_size = headroom ? 8 - headroom : 0;\n+\n+\tif (((skb-\u003elen + sizeof(tx_desc) + padding_size) % frame_size) == 0) {\n+\t\tpadding_size += 8;\n+\t\ttx_desc |= AX179A_TX_DESC_DROP_PADD;\n+\t}\n+\n+\tif ((dev-\u003enet-\u003efeatures \u0026 NETIF_F_HW_VLAN_CTAG_TX) \u0026\u0026 (vlan_get_tag(skb, \u0026tci) \u003e= 0)) {\n+\t\ttx_desc |= AX179A_TX_DESC_VLAN;\n+\t\ttx_desc |= ((u64)tci \u0026 AX179A_TX_DESC_VLAN_MASK) \u003c\u003c AX179A_TX_DESC_VLAN_SHIFT;\n+\t}\n+\n+\tif (!dev-\u003ecan_dma_sg \u0026\u0026 (dev-\u003enet-\u003efeatures \u0026 NETIF_F_SG) \u0026\u0026 skb_linearize(skb))\n+\t\treturn NULL;\n+\n+\theadroom = skb_headroom(skb);\n+\ttailroom = skb_tailroom(skb);\n+\n+\tif (!(headroom \u003e= sizeof(tx_desc) \u0026\u0026 tailroom \u003e= padding_size)) {\n+\t\tax_skb = skb_copy_expand(skb, sizeof(tx_desc), padding_size, flags);\n+\t\tdev_kfree_skb_any(skb);\n+\t\tskb = ax_skb;\n+\t\tif (!skb)\n+\t\t\treturn NULL;\n+\t}\n+\tif (padding_size != 0)\n+\t\tskb_put_zero(skb, padding_size);\n+\t/* Copy TX header */\n+\ttx_desc_ptr = skb_push(skb, sizeof(tx_desc));\n+\t*tx_desc_ptr = cpu_to_le64(tx_desc);\n+\n+\tusbnet_set_skb_tx_stats(skb, 1, 0);\n+\n+\treturn skb;\n+}\n+\n+static int ax88179a_reset(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tu16 *tmp16;\n+\tu8 buf[5];\n+\tu8 *tmp;\n+\n+\ttmp16 = (u16 *)buf;\n+\ttmp = (u8 *)buf;\n+\n+\t/* Power up ethernet PHY */\n+\t*tmp = AX_PHY_POWER;\n+\tax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, tmp);\n+\tmsleep(250);\n+\n+\t/* Ethernet PHY Auto Detach*/\n+\tax88179a_auto_detach(dev);\n+\n+\t*tmp = AX_MAC_EFF_EN;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BULK_OUT_CTRL, 1, 1, tmp);\n+\n+\t*tmp16 = 0;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);\n+\n+\t*tmp = 0x04;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);\n+\t*tmp = 0x10;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH, 1, 1, tmp);\n+\n+\t*tmp = 0;\n+\tif (dev-\u003enet-\u003efeatures \u0026 NETIF_F_HW_VLAN_CTAG_FILTER)\n+\t\t*tmp |= AX_VLAN_CONTROL_VFE;\n+\tif (dev-\u003enet-\u003efeatures \u0026 NETIF_F_HW_VLAN_CTAG_RX)\n+\t\t*tmp |= AX_VLAN_CONTROL_VSO;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, tmp);\n+\n+\t*tmp = 0xff;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_INT_MASK, 1, 1, tmp);\n+\n+\t*tmp = 0;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_RX_DMA_CTL, 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_BM_TX_DMA_CTL, 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_ARC_CTRL, 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_SWP_CTRL, 1, 1, tmp);\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_TX_HDR_CKSUM, 1, 1, tmp);\n+\n+\t/* Read MAC address from DTB or asix chip */\n+\tax88179_get_mac_addr(dev);\n+\tmemcpy(dev-\u003enet-\u003eperm_addr, dev-\u003enet-\u003edev_addr, ETH_ALEN);\n+\n+\t/* The Bulk-Register configuration for the AX88179A is done in\n+\t * ax88179a_mac_link_up(), once the link is up for a given link and USB-speed.\n+\t */\n+\tif (ax179_data-\u003eis_ax88772d)\n+\t\tdev-\u003erx_urb_size = 1024 * 24;\n+\telse\n+\t\tdev-\u003erx_urb_size = 1024 * 48;\n+\n+\t/* Enable checksum offload */\n+\t*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |\n+\t AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);\n+\tax179_data-\u003erx_checksum = 1;\n+\n+\t*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |\n+\t AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);\n+\n+\t/* Configure RX control register =\u003e start operation */\n+\tax179_data-\u003erxctl = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_START |\n+\t\t\t AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;\n+\tif (ax179_data-\u003eip_align)\n+\t\tax179_data-\u003erxctl |= AX_RX_CTL_IPE;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, \u0026ax179_data-\u003erxctl);\n+\n+\tif (ax179_data-\u003echip_version \u003c AX_VERSION_AX88179A)\n+\t\t*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL | AX_MONITOR_MODE_RWMP;\n+\telse\n+\t\t*tmp = AX_MONITOR_MODE_RWMP;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);\n+\n+\t/* Configure default medium type =\u003e giga */\n+\t*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |\n+\t\t AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX;\n+\tif (!ax179_data-\u003eis_ax88772d)\n+\t\t*tmp16 |= AX_MEDIUM_GIGAMODE;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16);\n+\n+\t/* Check if WoL is supported */\n+\tax179_data-\u003ewol_supported = 0;\n+\tif (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,\n+\t\t\t 1, 1, \u0026tmp) \u003e 0)\n+\t\tax179_data-\u003ewol_supported = WAKE_MAGIC | WAKE_PHY;\n+\n+\t/* ax88179a_reset() may also be called from resume context, phylink\n+\t * is already started, then.\n+\t */\n+\tif (!ax179_data-\u003ein_pm)\n+\t\tphylink_start(ax179_data-\u003ephylink);\n+\n+\tusbnet_link_change(dev, 0, 0);\n+\n+\treturn 0;\n+}\n+\n+static int ax88179a_stop(struct usbnet *dev)\n+{\n+\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n+\tu16 reg16;\n+\tu8 reg8;\n+\n+\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026reg16);\n+\treg16 \u0026= ~AX_MEDIUM_RECEIVE_EN;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026reg16);\n+\n+\treg16 = 0;\n+\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, \u0026reg16);\n+\n+\treg8 = 0;\n+\tax88179_read_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, \u0026reg8);\n+\n+\tphylink_stop(ax179_data-\u003ephylink);\n+\n+\treturn 0;\n+}\n+\n+const struct driver_info ax88179a_info = {\n+\t.description = \"ASIX AX88179A USB 3.2 Gigabit Ethernet\",\n+\t.bind = ax88179a_bind,\n+\t.unbind = ax88179a_unbind,\n+\t.status = ax88179a_status,\n+\t.reset = ax88179a_reset,\n+\t.stop = ax88179a_stop,\n+\t.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS,\n+\t.rx_fixup = ax88179a_rx_fixup,\n+\t.tx_fixup = ax88179a_tx_fixup,\n+};\n+\n+const struct driver_info ax88772d_info = {\n+\t.description = \"ASIX AX88772D/E USB 2.0 Fast Ethernet\",\n+\t.bind = ax88179a_bind,\n+\t.unbind = ax88179a_unbind,\n+\t.status = ax88179a_status,\n+\t.reset = ax88179a_reset,\n+\t.stop = ax88179a_stop,\n+\t.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS,\n+\t.rx_fixup = ax88179a_rx_fixup,\n+\t.tx_fixup = ax88179a_tx_fixup,\n+};\n+\n+const struct driver_info ax88279_info = {\n+\t.description = \"ASIX AX88279 USB 3.2 2.5Gigabit Ethernet\",\n+\t.bind = ax88179a_bind,\n+\t.unbind = ax88179a_unbind,\n+\t.status = ax88179a_status,\n+\t.reset = ax88179a_reset,\n+\t.stop = ax88179a_stop,\n+\t.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_MULTI_PACKET | FLAG_AVOID_UNLINK_URBS,\n+\t.rx_fixup = ax88179a_rx_fixup,\n+\t.tx_fixup = ax88179a_tx_fixup,\n+};\ndiff --git a/include/linux/phy.h b/include/linux/phy.h\nindex 5f8d65868e0ff..d5f8e527ce8df 100644\n--- a/include/linux/phy.h\n+++ b/include/linux/phy.h\n@@ -64,6 +64,7 @@ extern const int phy_basic_ports_array[3];\n #define PHY_RST_AFTER_CLK_EN\t0x00000002\n #define PHY_POLL_CABLE_TEST\t0x00000004\n #define PHY_ALWAYS_CALL_SUSPEND\t0x00000008\n+#define PHY_BROKEN_FORCED\t0x00000010\n #define MDIO_DEVICE_IS_PHY\t0x80000000\n \n /**\ndiff --git a/include/linux/phylink.h b/include/linux/phylink.h\nindex 1dda5c7ed5f14..f6c1db837fb50 100644\n--- a/include/linux/phylink.h\n+++ b/include/linux/phylink.h\n@@ -768,6 +768,7 @@ int phylink_ethtool_set_eee(struct phylink *link, struct ethtool_keee *eee);\n int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);\n int phylink_speed_down(struct phylink *pl, bool sync);\n int phylink_speed_up(struct phylink *pl);\n+void phylink_mac_interrupt(struct phylink *pl);\n \n #define phylink_zero(bm) \\\n \tbitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)\n"
} |
| 2/1 | 2026/09/03 13:35 | agent | patch-evaluator |
0mModel:core Args: null Results: {
"EnableConfigs": [
"USB_NET_AX88179",
"USB_USBNET",
"AX88796B_PHY",
"PHYLINK"
],
"FocusSymbols": [
"ax88179a_rx_fixup",
"ax88179a_tx_fixup",
"ax88179a_bind",
"ax88179a_reset",
"ax88179a_set_features",
"ax88179a_mac_link_up",
"asix_ax88279_read_status",
"asix_ax88279_config_aneg",
"asix_ax88772D_get_features",
"phylink_mac_interrupt"
],
"Reasoning": "The patch adds support for new ASIX USB Ethernet devices (AX88179A, AX88772D, AX88279) along with PHY drivers, phylink integration, packet handling (rx_fixup / tx_fixup), and VLAN / feature configuration. This executable kernel code is fully reachable in standard QEMU environments via USB emulation and gadget fuzzing.",
"WorthFuzzing": true
}Instruction: You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.
IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.
================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.
- REACHABILITY IS THE PRIMARY GATE:
Fuzzing can only discover bugs in code that can actually execute in standard virtualized
environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
regardless of whether it adds assertions or complex logic.
- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
Patch authors routinely label changes as "cleanups", "refactorings", or state
"No functional change intended". Do NOT take these claims at face value.
Code refactorings that rearrange logic, introduce helper functions, or alter state management
in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
If reachable executable code is modified or refactored, it MUST be fuzzed.
- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
Even if the author believes the invariant always holds, fuzzing is essential to verify whether
an unusual sequence of operations can violate it.
================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:
- Non-kernel and non-executable changes:
* Modifications to Documentation/, comments, or spelling fixes.
* User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
that do not affect the compiled kernel image (vmlinux) or kernel modules.
* Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
that do not alter control flow or data structures.
* Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
* Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
* Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
physical PCI hot-unplug or manual sysfs driver unbinding.
* Code paths exclusive to architectures other than the target architecture.
================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
* Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
* Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
* Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
* Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).
================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:
- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
Do NOT list generic, ubiquitous functions called by almost every program in the corpus
(including, but not limited to: general memory allocators and deallocators, page fault
and trap handlers, or core synchronization primitives; this is not an exhaustive list).
Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
which severely dilutes fuzzing effort away from the actual changes.
- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
List functions that specifically implement the logic being added or altered, or direct API entrypoints
for the subsystem feature under review.
- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).
================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.
Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.
Prompt: Target architecture: amd64
For your convenience, here is the diff of the changes:
commit 8c372c361593da59a5e99b946b127757729ad34e
Author: syz-cluster <triage@syzkaller.com>
Date: Thu Sep 3 13:35:40 2026 +0000
syz-cluster: applied patch under review
diff --git a/MAINTAINERS b/MAINTAINERS
index 0b42e898f4d8e..442e8ea3ca04e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4020,6 +4020,12 @@ S: Maintained
F: Documentation/devicetree/bindings/net/asix,ax88796c.yaml
F: drivers/net/ethernet/asix/ax88796c_*
+ASIX AX88179 USB ETHERNET DRIVER
+M: Birger Koblitz <mail@birger-koblitz.de>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/usb/ax88179*
+
ASIX PHY DRIVER [RUST]
M: FUJITA Tomonori <fujita.tomonori@gmail.com>
R: Trevor Gross <tmgross@umich.edu>
diff --git a/drivers/net/phy/ax88796b.c b/drivers/net/phy/ax88796b.c
index f20ddf6491499..62f6beb25f41e 100644
--- a/drivers/net/phy/ax88796b.c
+++ b/drivers/net/phy/ax88796b.c
@@ -13,6 +13,19 @@
#define PHY_ID_ASIX_AX88772A 0x003b1861
#define PHY_ID_ASIX_AX88772C 0x003b1881
#define PHY_ID_ASIX_AX88796B 0x003b1841
+#define PHY_ID_ASIX_AX88772D 0x003b772d
+#define PHY_ID_ASIX_AX88179A 0x003b179a
+#define PHY_ID_ASIX_AX88279 0x003b2790
+
+#define AX_ADVERTISE_2500 0x1000
+
+/* MII Vendor registers */
+#define AX_CTRL_STATUS 0x1d
+#define AX_CTRL_STATUS_SPEED_MASK 0x0c
+#define AX_CTRL_STATUS_SPEED_10 0x0
+#define AX_CTRL_STATUS_SPEED_100 0x4
+#define AX_CTRL_STATUS_SPEED_1000 0x8
+#define AX_CTRL_STATUS_SPEED_2500 0xc
MODULE_DESCRIPTION("Asix PHY driver");
MODULE_AUTHOR("Michael Schmitz <schmitzmic@gmail.com>");
@@ -83,6 +96,103 @@ static int asix_ax88772a_read_status(struct phy_device *phydev)
return 0;
}
+static int asix_ax88279_read_status(struct phy_device *phydev)
+{
+ int ret, val;
+
+ ret = genphy_read_status(phydev);
+ if (ret)
+ return ret;
+
+ /* Read actual speed from vendor register */
+ val = phy_read(phydev, AX_CTRL_STATUS);
+ switch (val & AX_CTRL_STATUS_SPEED_MASK) {
+ case AX_CTRL_STATUS_SPEED_2500:
+ phydev->speed = SPEED_2500;
+ break;
+ case AX_CTRL_STATUS_SPEED_1000:
+ phydev->speed = SPEED_1000;
+ break;
+ case AX_CTRL_STATUS_SPEED_100:
+ phydev->speed = SPEED_100;
+ break;
+ case AX_CTRL_STATUS_SPEED_10:
+ phydev->speed = SPEED_10;
+ }
+
+ /* MDIO_AN_10GBT_STAT_LP2_5G is broken, but we can deduce that
+ * the link-partner advertised 2500M if remotely AN succceded
+ * for link speed > 1000M and we locally have a link speed of
+ * 2500M
+ */
+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
+ if (val >= 0 && val & MDIO_AN_10GBT_STAT_REMOK) {
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ phydev->lp_advertising,
+ phydev->speed == SPEED_2500);
+ }
+ /* Only supports full duplex */
+ phydev->duplex = DUPLEX_FULL;
+
+ /* PHY switches interface between 2.5GBit and slower modes */
+ if (phydev->speed == SPEED_2500)
+ phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
+ else
+ phydev->interface = PHY_INTERFACE_MODE_SGMII;
+
+ return 0;
+}
+
+static int asix_ax88279_config_aneg(struct phy_device *phydev)
+{
+ bool adv_2500;
+ int ret;
+
+ if (phydev->autoneg == AUTONEG_DISABLE) {
+ phydev_warn(phydev, "Disabling autoneg is not supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = genphy_config_aneg(phydev);
+
+ if (ret < 0)
+ return ret;
+
+ adv_2500 = linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising);
+ ret = phy_modify(phydev, MII_ADVERTISE, AX_ADVERTISE_2500,
+ adv_2500 ? AX_ADVERTISE_2500 : 0);
+
+ return ret;
+}
+
+static int asix_ax88279_get_features(struct phy_device *phydev)
+{
+ int ret;
+
+ /* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */
+ phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
+
+ linkmode_set_bit_array(phy_basic_ports_array, ARRAY_SIZE(phy_basic_ports_array),
+ phydev->supported);
+
+ ret = genphy_c45_pma_read_abilities(phydev);
+ if (ret < 0)
+ return ret;
+
+ /* AX88279 does not support reported 100baseT-half duplex mode */
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, phydev->supported);
+
+ return 0;
+}
+
+static int asix_ax88279_config_init(struct phy_device *phydev)
+{
+ __set_bit(PHY_INTERFACE_MODE_2500BASEX, phydev->possible_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_SGMII, phydev->possible_interfaces);
+
+ return 0;
+}
+
static void asix_ax88772a_link_change_notify(struct phy_device *phydev)
{
/* Reset PHY, otherwise MII_LPA will provide outdated information.
@@ -94,6 +204,25 @@ static void asix_ax88772a_link_change_notify(struct phy_device *phydev)
}
}
+static int asix_ax88772D_get_features(struct phy_device *phydev)
+{
+ int ret;
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};
+
+ /* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */
+ phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
+
+ ret = genphy_read_abilities(phydev);
+ if (ret < 0)
+ return ret;
+
+ /* AX88772D does not support reported 1000baseT mode */
+ linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, mask);
+ linkmode_andnot(phydev->supported, phydev->supported, mask);
+
+ return 0;
+}
+
static struct phy_driver asix_driver[] = {
{
PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A),
@@ -111,6 +240,35 @@ static struct phy_driver asix_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.soft_reset = asix_soft_reset,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D),
+ .name = "Asix Electronics AX88772D",
+ .flags = PHY_IS_INTERNAL,
+ .get_features = asix_ax88772D_get_features,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A),
+ .name = "Asix Electronics AX88179A",
+ .flags = PHY_IS_INTERNAL,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279),
+ .name = "Asix Electronics AX88279",
+ .flags = PHY_IS_INTERNAL | PHY_BROKEN_FORCED,
+ .get_features = asix_ax88279_get_features,
+ .read_status = asix_ax88279_read_status,
+ .config_aneg = asix_ax88279_config_aneg,
+ .config_init = asix_ax88279_config_init,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
}, {
PHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B),
.name = "Asix Electronics AX88796B",
@@ -124,6 +282,9 @@ static const struct mdio_device_id __maybe_unused asix_tbl[] = {
{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A) },
{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772C) },
{ PHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279) },
{ }
};
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index fce9bc7be3304..b83f938fe7c3b 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1190,6 +1190,10 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
duplex != DUPLEX_FULL)))
return -EINVAL;
+ if (autoneg == AUTONEG_DISABLE &&
+ (phydev->drv->flags & PHY_BROKEN_FORCED))
+ return -EOPNOTSUPP;
+
mutex_lock(&phydev->lock);
phydev->autoneg = autoneg;
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 3ec3bb4391095..96ed13458e9f3 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1612,6 +1612,22 @@ static bool phylink_link_is_up(struct phylink *pl)
return pl->netdev ? netif_carrier_ok(pl->netdev) : pl->old_link_state;
}
+/**
+ * phylink_mac_interrupt() - wrapper for phy_mac_interrupt()
+ * @pl: a pointer to a &struct phylink returned from phylink_create()
+ *
+ * Passes a link-change interrupt received by the MAC to phylib.
+ */
+void phylink_mac_interrupt(struct phylink *pl)
+{
+ struct phy_device *phy;
+
+ phy = pl->phydev;
+ if (phy)
+ phy_mac_interrupt(phy);
+}
+EXPORT_SYMBOL_GPL(phylink_mac_interrupt);
+
static void phylink_resolve(struct work_struct *w)
{
struct phylink *pl = container_of(w, struct phylink, resolve);
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 52a5c0922c79f..4158455a2da76 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -195,11 +195,12 @@ config USB_NET_AX8817X
This driver creates an interface named "ethX", where X depends on
what other networking devices you have in use.
-config USB_NET_AX88179_178A
- tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
+config USB_NET_AX88179
+ tristate "ASIX AX88179/179A/178A USB 3.0/2.0 to Gigabit Ethernet"
depends on USB_USBNET
+ select PHYLINK
+ select AX88796B_PHY
select CRC32
- select PHYLIB
default y
help
This option adds support for ASIX AX88179 based USB 3.0/2.0
@@ -207,6 +208,9 @@ config USB_NET_AX88179_178A
This driver should work with at least the following devices:
* ASIX AX88179
+ * ASIX AX88179A/B
+ * ASIX AX88279
+ * ASIX AX88772D/E
* ASIX AX88178A
* Sitcomm LN-032
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 4964f7b326fbc..4026f19ecb826 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -12,7 +12,8 @@ obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_LAN78XX) += lan78xx.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o
asix-y := asix_devices.o asix_common.o ax88172a.o
-obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o
+obj-$(CONFIG_USB_NET_AX88179) += ax88179.o
+ax88179-y := ax88179_178a.o ax88179a_devices.o ax88179_lib.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 81d8412ce8e2f..55564aa0ca63f 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -8,179 +8,12 @@
#include <linux/module.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
-#include <linux/usb.h>
-#include <linux/crc32.h>
-#include <linux/usb/usbnet.h>
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
-
-#define AX88179_PHY_ID 0x03
-#define AX_EEPROM_LEN 0x100
-#define AX88179_EEPROM_MAGIC 0x17900b95
-#define AX_MCAST_FLTSIZE 8
-#define AX_MAX_MCAST 64
-#define AX_INT_PPLS_LINK ((u32)BIT(16))
-#define AX_RXHDR_L4_TYPE_MASK 0x1c
-#define AX_RXHDR_L4_TYPE_UDP 4
-#define AX_RXHDR_L4_TYPE_TCP 16
-#define AX_RXHDR_L3CSUM_ERR 2
-#define AX_RXHDR_L4CSUM_ERR 1
-#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
-#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
-#define AX_ACCESS_MAC 0x01
-#define AX_ACCESS_PHY 0x02
-#define AX_ACCESS_EEPROM 0x04
-#define AX_ACCESS_EFUS 0x05
-#define AX_RELOAD_EEPROM_EFUSE 0x06
-#define AX_PAUSE_WATERLVL_HIGH 0x54
-#define AX_PAUSE_WATERLVL_LOW 0x55
-
-#define PHYSICAL_LINK_STATUS 0x02
- #define AX_USB_SS 0x04
- #define AX_USB_HS 0x02
-
-#define GENERAL_STATUS 0x03
-/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
- #define AX_SECLD 0x04
-
-#define AX_SROM_ADDR 0x07
-#define AX_SROM_CMD 0x0a
- #define EEP_RD 0x04
- #define EEP_BUSY 0x10
-
-#define AX_SROM_DATA_LOW 0x08
-#define AX_SROM_DATA_HIGH 0x09
-
-#define AX_RX_CTL 0x0b
- #define AX_RX_CTL_DROPCRCERR 0x0100
- #define AX_RX_CTL_IPE 0x0200
- #define AX_RX_CTL_START 0x0080
- #define AX_RX_CTL_AP 0x0020
- #define AX_RX_CTL_AM 0x0010
- #define AX_RX_CTL_AB 0x0008
- #define AX_RX_CTL_AMALL 0x0002
- #define AX_RX_CTL_PRO 0x0001
- #define AX_RX_CTL_STOP 0x0000
-
-#define AX_NODE_ID 0x10
-#define AX_MULFLTARY 0x16
-
-#define AX_MEDIUM_STATUS_MODE 0x22
- #define AX_MEDIUM_GIGAMODE 0x01
- #define AX_MEDIUM_FULL_DUPLEX 0x02
- #define AX_MEDIUM_EN_125MHZ 0x08
- #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
- #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
- #define AX_MEDIUM_RECEIVE_EN 0x100
- #define AX_MEDIUM_PS 0x200
- #define AX_MEDIUM_JUMBO_EN 0x8040
-
-#define AX_MONITOR_MOD 0x24
- #define AX_MONITOR_MODE_RWLC 0x02
- #define AX_MONITOR_MODE_RWMP 0x04
- #define AX_MONITOR_MODE_PMEPOL 0x20
- #define AX_MONITOR_MODE_PMETYPE 0x40
-
-#define AX_GPIO_CTRL 0x25
- #define AX_GPIO_CTRL_GPIO3EN 0x80
- #define AX_GPIO_CTRL_GPIO2EN 0x40
- #define AX_GPIO_CTRL_GPIO1EN 0x20
-
-#define AX_PHYPWR_RSTCTL 0x26
- #define AX_PHYPWR_RSTCTL_BZ 0x0010
- #define AX_PHYPWR_RSTCTL_IPRL 0x0020
- #define AX_PHYPWR_RSTCTL_AT 0x1000
-
-#define AX_RX_BULKIN_QCTRL 0x2e
-#define AX_CLK_SELECT 0x33
- #define AX_CLK_SELECT_BCS 0x01
- #define AX_CLK_SELECT_ACS 0x02
- #define AX_CLK_SELECT_ULR 0x08
-
-#define AX_RXCOE_CTL 0x34
- #define AX_RXCOE_IP 0x01
- #define AX_RXCOE_TCP 0x02
- #define AX_RXCOE_UDP 0x04
- #define AX_RXCOE_TCPV6 0x20
- #define AX_RXCOE_UDPV6 0x40
-
-#define AX_TXCOE_CTL 0x35
- #define AX_TXCOE_IP 0x01
- #define AX_TXCOE_TCP 0x02
- #define AX_TXCOE_UDP 0x04
- #define AX_TXCOE_TCPV6 0x20
- #define AX_TXCOE_UDPV6 0x40
-
-#define AX_LEDCTRL 0x73
-
-#define GMII_PHY_PHYSR 0x11
- #define GMII_PHY_PHYSR_SMASK 0xc000
- #define GMII_PHY_PHYSR_GIGA 0x8000
- #define GMII_PHY_PHYSR_100 0x4000
- #define GMII_PHY_PHYSR_FULL 0x2000
- #define GMII_PHY_PHYSR_LINK 0x400
-
-#define GMII_LED_ACT 0x1a
- #define GMII_LED_ACTIVE_MASK 0xff8f
- #define GMII_LED0_ACTIVE BIT(4)
- #define GMII_LED1_ACTIVE BIT(5)
- #define GMII_LED2_ACTIVE BIT(6)
-
-#define GMII_LED_LINK 0x1c
- #define GMII_LED_LINK_MASK 0xf888
- #define GMII_LED0_LINK_10 BIT(0)
- #define GMII_LED0_LINK_100 BIT(1)
- #define GMII_LED0_LINK_1000 BIT(2)
- #define GMII_LED1_LINK_10 BIT(4)
- #define GMII_LED1_LINK_100 BIT(5)
- #define GMII_LED1_LINK_1000 BIT(6)
- #define GMII_LED2_LINK_10 BIT(8)
- #define GMII_LED2_LINK_100 BIT(9)
- #define GMII_LED2_LINK_1000 BIT(10)
- #define LED0_ACTIVE BIT(0)
- #define LED0_LINK_10 BIT(1)
- #define LED0_LINK_100 BIT(2)
- #define LED0_LINK_1000 BIT(3)
- #define LED0_FD BIT(4)
- #define LED0_USB3_MASK 0x001f
- #define LED1_ACTIVE BIT(5)
- #define LED1_LINK_10 BIT(6)
- #define LED1_LINK_100 BIT(7)
- #define LED1_LINK_1000 BIT(8)
- #define LED1_FD BIT(9)
- #define LED1_USB3_MASK 0x03e0
- #define LED2_ACTIVE BIT(10)
- #define LED2_LINK_1000 BIT(13)
- #define LED2_LINK_100 BIT(12)
- #define LED2_LINK_10 BIT(11)
- #define LED2_FD BIT(14)
- #define LED_VALID BIT(15)
- #define LED2_USB3_MASK 0x7c00
-
-#define GMII_PHYPAGE 0x1e
-#define GMII_PHY_PAGE_SELECT 0x1f
- #define GMII_PHY_PGSEL_EXT 0x0007
- #define GMII_PHY_PGSEL_PAGE0 0x0000
- #define GMII_PHY_PGSEL_PAGE3 0x0003
- #define GMII_PHY_PGSEL_PAGE5 0x0005
+#include "ax88179_lib.h"
static int ax88179_reset(struct usbnet *dev);
-struct ax88179_data {
- u8 eee_enabled;
- u8 eee_active;
- u16 rxctl;
- u8 in_pm;
- u32 wol_supported;
- u32 wolopts;
- u8 disconnecting;
-};
-
-struct ax88179_int_data {
- __le32 intdata1;
- __le32 intdata2;
-};
-
static const struct {
unsigned char ctrl, timer_l, timer_h, size, ifg;
} AX88179_BULKIN_SIZE[] = {
@@ -190,165 +23,6 @@ static const struct {
{7, 0xcc, 0x4c, 0x18, 8},
};
-static void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)
-{
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- ax179_data->in_pm = pm_mode;
-}
-
-static int ax88179_in_pm(struct usbnet *dev)
-{
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- return ax179_data->in_pm;
-}
-
-static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- int ret;
- int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- BUG_ON(!dev);
-
- if (!ax88179_in_pm(dev))
- fn = usbnet_read_cmd;
- else
- fn = usbnet_read_cmd_nopm;
-
- ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, index, data, size);
-
- if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
- netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
- index, ret);
-
- return ret;
-}
-
-static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, const void *data)
-{
- int ret;
- int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- BUG_ON(!dev);
-
- if (!ax88179_in_pm(dev))
- fn = usbnet_write_cmd;
- else
- fn = usbnet_write_cmd_nopm;
-
- ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, index, data, size);
-
- if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
- netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
- index, ret);
-
- return ret;
-}
-
-static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
- u16 index, u16 size, void *data)
-{
- u16 buf;
-
- if (2 == size) {
- buf = *((u16 *)data);
- cpu_to_le16s(&buf);
- usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
- USB_RECIP_DEVICE, value, index, &buf,
- size);
- } else {
- usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
- USB_RECIP_DEVICE, value, index, data,
- size);
- }
-}
-
-static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- int ret;
-
- if (2 == size) {
- u16 buf = 0;
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
- le16_to_cpus(&buf);
- *((u16 *)data) = buf;
- } else if (4 == size) {
- u32 buf = 0;
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
- le32_to_cpus(&buf);
- *((u32 *)data) = buf;
- } else {
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, data);
- }
-
- return ret;
-}
-
-static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, const void *data)
-{
- int ret;
-
- if (2 == size) {
- u16 buf;
- buf = *((u16 *)data);
- cpu_to_le16s(&buf);
- ret = __ax88179_write_cmd(dev, cmd, value, index,
- size, &buf);
- } else {
- ret = __ax88179_write_cmd(dev, cmd, value, index,
- size, data);
- }
-
- return ret;
-}
-
-static void ax88179_status(struct usbnet *dev, struct urb *urb)
-{
- struct ax88179_int_data *event;
- u32 link;
-
- if (urb->actual_length < 8)
- return;
-
- event = urb->transfer_buffer;
- le32_to_cpus((void *)&event->intdata1);
-
- link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
-
- if (netif_carrier_ok(dev->net) != link) {
- usbnet_link_change(dev, link, 1);
- if (!link)
- netdev_info(dev->net, "ax88179 - Link status is: 0\n");
- }
-}
-
-static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res;
-
- ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
- return res;
-}
-
-static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
- int val)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res = (u16) val;
-
- ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
-}
-
static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
u16 devad)
{
@@ -510,146 +184,11 @@ static void ax88179_disconnect(struct usb_interface *intf)
usbnet_disconnect(intf);
}
-static void
-ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *priv = dev->driver_priv;
-
- wolinfo->supported = priv->wol_supported;
- wolinfo->wolopts = priv->wolopts;
-}
-
-static int
-ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *priv = dev->driver_priv;
-
- if (wolinfo->wolopts & ~(priv->wol_supported))
- return -EINVAL;
-
- priv->wolopts = wolinfo->wolopts;
-
- return 0;
-}
-
static int ax88179_get_eeprom_len(struct net_device *net)
{
return AX_EEPROM_LEN;
}
-static int
-ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
- u8 *data)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 *eeprom_buff;
- int first_word, last_word;
- int i, ret;
-
- if (eeprom->len == 0)
- return -EINVAL;
-
- eeprom->magic = AX88179_EEPROM_MAGIC;
-
- first_word = eeprom->offset >> 1;
- last_word = (eeprom->offset + eeprom->len - 1) >> 1;
- eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
- GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- /* ax88179/178A returns 2 bytes from eeprom on read */
- for (i = first_word; i <= last_word; i++) {
- ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
- &eeprom_buff[i - first_word]);
- if (ret < 0) {
- kfree(eeprom_buff);
- return -EIO;
- }
- }
-
- memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
- kfree(eeprom_buff);
- return 0;
-}
-
-static int
-ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
- u8 *data)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 *eeprom_buff;
- int first_word;
- int last_word;
- int ret;
- int i;
-
- netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
- eeprom->len, eeprom->offset, eeprom->magic);
-
- if (eeprom->len == 0)
- return -EINVAL;
-
- if (eeprom->magic != AX88179_EEPROM_MAGIC)
- return -EINVAL;
-
- first_word = eeprom->offset >> 1;
- last_word = (eeprom->offset + eeprom->len - 1) >> 1;
-
- eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
- GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- /* align data to 16 bit boundaries, read the missing data from
- the EEPROM */
- if (eeprom->offset & 1) {
- ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
- &eeprom_buff[0]);
- if (ret < 0) {
- netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
- goto free;
- }
- }
-
- if ((eeprom->offset + eeprom->len) & 1) {
- ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
- &eeprom_buff[last_word - first_word]);
- if (ret < 0) {
- netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
- goto free;
- }
- }
-
- memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
-
- for (i = first_word; i <= last_word; i++) {
- netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
- i, eeprom_buff[i - first_word]);
- ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
- &eeprom_buff[i - first_word]);
- if (ret < 0) {
- netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
- goto free;
- }
- msleep(20);
- }
-
- /* reload EEPROM data */
- ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
- if (ret < 0) {
- netdev_err(net, "Failed to reload EEPROM data\n");
- goto free;
- }
-
- ret = 0;
-free:
- kfree(eeprom_buff);
- return ret;
-}
-
static int ax88179_get_link_ksettings(struct net_device *net,
struct ethtool_link_ksettings *cmd)
{
@@ -864,125 +403,6 @@ static const struct ethtool_ops ax88179_ethtool_ops = {
.get_ts_info = ethtool_op_get_ts_info,
};
-static void ax88179_set_multicast(struct net_device *net)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *data = dev->driver_priv;
- u8 *m_filter = ((u8 *)dev->data);
-
- data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
-
- if (net->flags & IFF_PROMISC) {
- data->rxctl |= AX_RX_CTL_PRO;
- } else if (net->flags & IFF_ALLMULTI ||
- netdev_mc_count(net) > AX_MAX_MCAST) {
- data->rxctl |= AX_RX_CTL_AMALL;
- } else if (netdev_mc_empty(net)) {
- /* just broadcast and directed */
- } else {
- /* We use dev->data for our 8 byte filter buffer
- * to avoid allocating memory that is tricky to free later
- */
- u32 crc_bits;
- struct netdev_hw_addr *ha;
-
- memset(m_filter, 0, AX_MCAST_FLTSIZE);
-
- netdev_for_each_mc_addr(ha, net) {
- crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
- *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
- }
-
- ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
- AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
- m_filter);
-
- data->rxctl |= AX_RX_CTL_AM;
- }
-
- ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
- 2, 2, &data->rxctl);
-}
-
-static int
-ax88179_set_features(struct net_device *net, netdev_features_t features)
-{
- u8 tmp;
- struct usbnet *dev = netdev_priv(net);
- netdev_features_t changed = net->features ^ features;
-
- if (changed & NETIF_F_IP_CSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- }
-
- if (changed & NETIF_F_IPV6_CSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- }
-
- if (changed & NETIF_F_RXCSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
- 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);
- }
-
- return 0;
-}
-
-static int ax88179_change_mtu(struct net_device *net, int new_mtu)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 tmp16;
-
- WRITE_ONCE(net->mtu, new_mtu);
- dev->hard_mtu = net->mtu + net->hard_header_len;
-
- if (net->mtu > 1500) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- tmp16 |= AX_MEDIUM_JUMBO_EN;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- } else {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- tmp16 &= ~AX_MEDIUM_JUMBO_EN;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- }
-
- /* max qlen depend on hard_mtu and rx_urb_size */
- usbnet_update_max_qlen(dev);
-
- return 0;
-}
-
-static int ax88179_set_mac_addr(struct net_device *net, void *p)
-{
- struct usbnet *dev = netdev_priv(net);
- struct sockaddr *addr = p;
- int ret;
-
- if (netif_running(net))
- return -EBUSY;
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- eth_hw_addr_set(net, addr->sa_data);
-
- /* Set the MAC address */
- ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
- ETH_ALEN, net->dev_addr);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
static const struct net_device_ops ax88179_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
@@ -1249,35 +669,6 @@ static int ax88179_led_setting(struct usbnet *dev)
return 0;
}
-static void ax88179_get_mac_addr(struct usbnet *dev)
-{
- u8 mac[ETH_ALEN];
-
- memset(mac, 0, sizeof(mac));
-
- /* Maybe the boot loader passed the MAC address via device tree */
- if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
- netif_dbg(dev, ifup, dev->net,
- "MAC address read from device tree");
- } else {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
- ETH_ALEN, mac);
- netif_dbg(dev, ifup, dev->net,
- "MAC address read from ASIX chip");
- }
-
- if (is_valid_ether_addr(mac)) {
- eth_hw_addr_set(dev->net, mac);
- if (!is_local_ether_addr(mac))
- dev->net->addr_assign_type = NET_ADDR_PERM;
- } else {
- netdev_info(dev->net, "invalid MAC address, using random\n");
- }
-
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
- dev->net->dev_addr);
-}
-
static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
{
struct ax88179_data *ax179_data;
@@ -1293,6 +684,22 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
dev->driver_priv = ax179_data;
+ ax179_data->resume = ax88179_resume;
+ ax179_data->suspend = ax88179_suspend;
+
+ ret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,
+ 1, 1, &ax179_data->chip_version);
+ if (ret < 0)
+ goto err_nodev;
+
+ ax179_data->chip_version = (ax179_data->chip_version & 0xf0) >> 4;
+ ax179_data->is_ax88772d = 0;
+ ax179_data->ip_align = 1;
+ ax179_data->eeprom_read_cmd = AX_ACCESS_EEPROM;
+ ax179_data->eeprom_write_cmd = AX_ACCESS_EEPROM;
+ ax179_data->eeprom_block = 2;
+ ax179_data->eeprom_wen = 0;
+
dev->net->netdev_ops = &ax88179_netdev_ops;
dev->net->ethtool_ops = &ax88179_ethtool_ops;
dev->net->needed_headroom = 8;
@@ -1317,6 +724,12 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
ax88179_reset(dev);
return 0;
+
+err_nodev:
+ kfree(ax179_data);
+ ax179_data = NULL;
+
+ return ret;
}
static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
@@ -1619,11 +1032,10 @@ static int ax88179_reset(struct usbnet *dev)
dev->rx_urb_size = 1024 * 20;
*tmp = 0x34;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
+ 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_HIGH,
- 1, 1, tmp);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
/* Enable checksum offload */
*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
@@ -1880,6 +1292,18 @@ static const struct driver_info at_umc2000sp_info = {
static const struct usb_device_id products[] = {
{
+ /* ASIX AX88179A USB 3.2 1000Mbit Ethernet */
+ USB_DEVICE_VER(0x0b95, 0x1790, 0, 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 2500Mbit Ethernet */
+ USB_DEVICE_VER(0x0b95, 0x1790, 0, 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,
@@ -1936,19 +1360,19 @@ static const struct usb_device_id products[] = {
};
MODULE_DEVICE_TABLE(usb, products);
-static struct usb_driver ax88179_178a_driver = {
- .name = "ax88179_178a",
+static struct usb_driver ax88179_driver = {
+ .name = "ax88179",
.id_table = products,
.probe = usbnet_probe,
- .suspend = ax88179_suspend,
- .resume = ax88179_resume,
- .reset_resume = ax88179_resume,
+ .suspend = ax88179_suspend_wrapper,
+ .resume = ax88179_resume_wrapper,
+ .reset_resume = ax88179_resume_wrapper,
.disconnect = ax88179_disconnect,
.supports_autosuspend = 1,
.disable_hub_initiated_lpm = 1,
};
-module_usb_driver(ax88179_178a_driver);
+module_usb_driver(ax88179_driver);
-MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
+MODULE_DESCRIPTION("ASIX AX88179/179A/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/ax88179_lib.c b/drivers/net/usb/ax88179_lib.c
new file mode 100644
index 0000000000000..db77b7d4539ec
--- /dev/null
+++ b/drivers/net/usb/ax88179_lib.c
@@ -0,0 +1,506 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
+ *
+ * Copyright (C) 2011-2013 ASIX
+ */
+
+#include <linux/etherdevice.h>
+#include "ax88179_lib.h"
+
+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+
+ ax179_data->in_pm = pm_mode;
+}
+
+static int ax88179_in_pm(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+
+ return ax179_data->in_pm;
+}
+
+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, void *d, u16 size);
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ int ret;
+
+ if (!ax88179_in_pm(dev))
+ fn = usbnet_read_cmd;
+ else
+ fn = usbnet_read_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0 && !(ret == -ENODEV && ax179_data->disconnecting)))
+ netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, const void *data)
+{
+ int (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, const void *d, u16 size);
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ int ret;
+
+ if (!ax88179_in_pm(dev))
+ fn = usbnet_write_cmd;
+ else
+ fn = usbnet_write_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0 && !(ret == -ENODEV && ax179_data->disconnecting)))
+ netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data)
+{
+ u16 buf;
+
+ if (size == 2) {
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, &buf,
+ size);
+ } else {
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, data,
+ size);
+ }
+}
+
+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int ret;
+
+ if (size == 2) {
+ u16 buf = 0;
+
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
+ le16_to_cpus(&buf);
+ *((u16 *)data) = buf;
+ } else if (size == 4) {
+ u32 buf = 0;
+
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
+ le32_to_cpus(&buf);
+ *((u32 *)data) = buf;
+ } else {
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, data);
+ }
+
+ return ret;
+}
+
+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, const void *data)
+{
+ int ret;
+
+ if (size == 2) {
+ u16 buf;
+
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, &buf);
+ } else {
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, data);
+ }
+
+ return ret;
+}
+
+struct ax88179_data *netdev2data(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return dev->driver_priv;
+}
+
+void ax88179_status(struct usbnet *dev, struct urb *urb)
+{
+ struct ax88179_int_data *event;
+ u32 link;
+
+ if (urb->actual_length < 8)
+ return;
+
+ event = urb->transfer_buffer;
+ le32_to_cpus((void *)&event->intdata1);
+
+ link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
+
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ if (!link)
+ netdev_info(dev->net, "ax88179 - Link status is: 0\n");
+ }
+}
+
+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res;
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+ return res;
+}
+
+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res = (u16)val;
+
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+}
+
+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = dev->driver_priv;
+
+ wolinfo->supported = priv->wol_supported;
+ wolinfo->wolopts = priv->wolopts;
+}
+
+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = dev->driver_priv;
+
+ if (wolinfo->wolopts & ~(priv->wol_supported))
+ return -EINVAL;
+
+ priv->wolopts = wolinfo->wolopts;
+
+ return 0;
+}
+
+static void
+ax88179_eeprom_access_params(struct ax88179_data *ax179_data, int i, u16 *value, u16 *idx)
+{
+ /* AX88179 has a word-addressable EEPROM
+ * AX88179A uses EFUSES with 20 bytes length
+ * AX88279 has an EEPROM addressable in 256 byte blocks
+ */
+ if (ax179_data->chip_version < AX_VERSION_AX88179A) {
+ *value = i;
+ *idx = 1;
+ } else if (ax179_data->chip_version >= AX_VERSION_AX88279) {
+ *value = (i * ax179_data->eeprom_block) >> 16;
+ *idx = (i * ax179_data->eeprom_block) & 0xffff;
+ } else {
+ *value = i << 4;
+ *idx = 0;
+ }
+}
+
+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *ax179_data;
+ int first, last, i, ret;
+ u8 *eeprom_buff;
+
+ ax179_data = dev->driver_priv;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = AX88179_EEPROM_MAGIC;
+
+ first = eeprom->offset / ax179_data->eeprom_block;
+ last = (eeprom->offset + eeprom->len - 1) / ax179_data->eeprom_block;
+
+ eeprom_buff = kzalloc((last - first + 1) * ax179_data->eeprom_block, GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ for (i = first; i <= last; i++) {
+ u16 value, idx;
+
+ ax88179_eeprom_access_params(ax179_data, i, &value, &idx);
+ ret = __ax88179_read_cmd(dev, ax179_data->eeprom_read_cmd,
+ value, idx, ax179_data->eeprom_block,
+ eeprom_buff + (i - first) * ax179_data->eeprom_block);
+
+ if (ret < 0) {
+ kfree(eeprom_buff);
+ return -EIO;
+ }
+ }
+
+ memcpy(data, eeprom_buff + eeprom->offset % ax179_data->eeprom_block, eeprom->len);
+ kfree(eeprom_buff);
+ return 0;
+}
+
+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *ax179_data;
+ u16 *eeprom_buff;
+ int first_word;
+ int last_word;
+ int ret;
+ int i;
+
+ ax179_data = dev->driver_priv;
+ if (ax179_data->chip_version >= AX_VERSION_AX88179A)
+ return -EOPNOTSUPP;
+
+ netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
+ eeprom->len, eeprom->offset, eeprom->magic);
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ if (eeprom->magic != AX88179_EEPROM_MAGIC)
+ return -EINVAL;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ /* align data to 16 bit boundaries, read the missing data from
+ * the EEPROM
+ */
+ if (eeprom->offset & 1) {
+ ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
+ &eeprom_buff[0]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
+ goto free;
+ }
+ }
+
+ if ((eeprom->offset + eeprom->len) & 1) {
+ ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
+ &eeprom_buff[last_word - first_word]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
+ goto free;
+ }
+ }
+
+ memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
+
+ for (i = first_word; i <= last_word; i++) {
+ netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
+ i, eeprom_buff[i - first_word]);
+ ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
+ &eeprom_buff[i - first_word]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
+ goto free;
+ }
+ msleep(20);
+ }
+
+ /* reload EEPROM data */
+ ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_err(net, "Failed to reload EEPROM data\n");
+ goto free;
+ }
+
+ ret = 0;
+free:
+ kfree(eeprom_buff);
+ return ret;
+}
+
+void ax88179_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 *m_filter = ((u8 *)dev->data);
+ struct ax88179_data *data;
+
+ data = dev->driver_priv;
+
+ data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_DROPCRCERR);
+ if (data->ip_align)
+ data->rxctl |= AX_RX_CTL_IPE;
+
+ if (net->flags & IFF_PROMISC) {
+ data->rxctl |= AX_RX_CTL_PRO;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > AX_MAX_MCAST) {
+ data->rxctl |= AX_RX_CTL_AMALL;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use dev->data for our 8 byte filter buffer
+ * to avoid allocating memory that is tricky to free later
+ */
+ u32 crc_bits;
+ struct netdev_hw_addr *ha;
+
+ memset(m_filter, 0, AX_MCAST_FLTSIZE);
+
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
+ AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
+ m_filter);
+
+ data->rxctl |= AX_RX_CTL_AM;
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
+ 2, 2, &data->rxctl);
+}
+
+int ax88179_set_features(struct net_device *net, netdev_features_t features)
+{
+ u8 tmp;
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *data = dev->driver_priv;
+ netdev_features_t changed = net->features ^ features;
+
+ if (changed & NETIF_F_IP_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_IPV6_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_RXCSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
+ 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);
+ data->rx_checksum = !!(features & NETIF_F_RXCSUM);
+ }
+
+ return 0;
+}
+
+void ax88179_get_mac_addr(struct usbnet *dev)
+{
+ u8 mac[ETH_ALEN];
+
+ memset(mac, 0, sizeof(mac));
+
+ /* Maybe the boot loader passed the MAC address via device tree */
+ if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from device tree");
+ } else {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, mac);
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from ASIX chip");
+ }
+
+ if (is_valid_ether_addr(mac)) {
+ eth_hw_addr_set(dev->net, mac);
+ if (!is_local_ether_addr(mac))
+ dev->net->addr_assign_type = NET_ADDR_PERM;
+ } else {
+ netdev_info(dev->net, "invalid MAC address, using random\n");
+ }
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
+ dev->net->dev_addr);
+}
+
+int ax88179_change_mtu(struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 tmp16;
+
+ WRITE_ONCE(net->mtu, new_mtu);
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+
+ if (net->mtu > 1500) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 |= AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ } else {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 &= ~AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ }
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ return 0;
+}
+
+int ax88179_set_mac_addr(struct net_device *net, void *p)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sockaddr *addr = p;
+ int ret;
+
+ if (netif_running(net))
+ return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ eth_hw_addr_set(net, addr->sa_data);
+
+ /* Set the MAC address */
+ ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, net->dev_addr);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+
+ priv = dev->driver_priv;
+
+ return priv->suspend(intf, message);
+}
+
+int ax88179_resume_wrapper(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+
+ priv = dev->driver_priv;
+ return priv->resume(intf);
+}
+
diff --git a/drivers/net/usb/ax88179_lib.h b/drivers/net/usb/ax88179_lib.h
new file mode 100644
index 0000000000000..16a6dcbd6e66e
--- /dev/null
+++ b/drivers/net/usb/ax88179_lib.h
@@ -0,0 +1,358 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/phylink.h>
+#include <linux/usb/usbnet.h>
+
+#ifndef __LINUX_USBNET_AX88179_H
+#define __LINUX_USBNET_AX88179_H
+
+#define AX88179_PHY_ID 0x03
+#define AX_EEPROM_LEN 0x100
+#define AX88179_EEPROM_MAGIC 0x17900b95
+#define AX_MCAST_FLTSIZE 8
+#define AX_MAX_MCAST 64
+#define AX_INT_PPLS_LINK ((u32)BIT(16))
+#define AX_RXHDR_L4_TYPE_MASK 0x1c
+#define AX_RXHDR_L4_TYPE_UDP 4
+#define AX_RXHDR_L4_TYPE_TCP 16
+#define AX_RXHDR_L3CSUM_ERR 2
+#define AX_RXHDR_L4CSUM_ERR 1
+#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
+#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
+#define AX_ACCESS_MAC 0x01
+#define AX_ACCESS_PHY 0x02
+#define AX_ACCESS_EEPROM 0x04
+#define AX_ACCESS_EFUS 0x05
+#define AX_RELOAD_EEPROM_EFUSE 0x06
+#define AX88179A_WAKEUP_SETTING 0x07
+#define AX_FW_MODE 0x08
+#define AX_GPHY_CTL 0x0F
+#define AX88179A_FLASH_READ 0x21
+#define AX88179A_FLASH_WEN 0x22
+#define AX88179A_FLASH_WDIS 0x23
+#define AX88179A_FLASH_WRITE 0x24
+#define AX88179A_PHY_CLAUSE45 0x27
+#define AX88179A_FLASH_ERASE_SECTION 0x28
+#define AX88179A_ACCESS_BL 0x2A
+#define AX88179A_PHY_POWER 0x31
+#define AX88179A_AUTODETACH 0xC0
+
+#define AX_PAUSE_WATERLVL_LOW 0x54
+#define AX_PAUSE_WATERLVL_HIGH 0x55
+
+#define AX_FW_MODE_179A 0x01
+#define PHYSICAL_LINK_STATUS 0x02
+ #define AX_USB_SS 0x04
+ #define AX_USB_HS 0x02
+ #define AX_USB_FS 0x01
+
+#define GENERAL_STATUS 0x03
+/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
+ #define AX_SECLD 0x04
+
+#define AX_CHIP_STATUS 0x05
+
+#define AX_SROM_ADDR 0x07
+#define AX_SROM_CMD 0x0a
+ #define EEP_RD 0x04
+ #define EEP_BUSY 0x10
+
+#define AX_SROM_DATA_LOW 0x08
+#define AX_SROM_DATA_HIGH 0x09
+
+#define AX_RX_CTL 0x0b
+ #define AX_RX_CTL_DROPCRCERR 0x0100
+ #define AX_RX_CTL_IPE 0x0200
+ #define AX_RX_CTL_START 0x0080
+ #define AX_RX_CTL_AP 0x0020
+ #define AX_RX_CTL_AM 0x0010
+ #define AX_RX_CTL_AB 0x0008
+ #define AX_RX_CTL_AMALL 0x0002
+ #define AX_RX_CTL_PRO 0x0001
+ #define AX_RX_CTL_STOP 0x0000
+
+#define AX88179A_ETH_TX_GAP 0x0D
+
+#define AX88179A_BFM_DATA 0x0E
+ #define AX_TX_QUEUE_CFG 0x02
+ #define AX_TX_QUEUE_SET 0x08
+ #define AX_TX_Q1_AHB_FC_EN 0x10
+ #define AX_TX_Q2_AHB_FC_EN 0x20
+ #define AX_XGMII_EN 0x80
+
+#define AX_NODE_ID 0x10
+#define AX_MULFLTARY 0x16
+
+#define AX_MEDIUM_STATUS_MODE 0x22
+ #define AX_MEDIUM_GIGAMODE 0x01
+ #define AX_MEDIUM_FULL_DUPLEX 0x02
+ #define AX_MEDIUM_EN_125MHZ 0x08
+ #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
+ #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
+ #define AX_MEDIUM_RECEIVE_EN 0x100
+ #define AX_MEDIUM_PS 0x200
+ #define AX_MEDIUM_JUMBO_EN 0x8040
+
+#define AX_MONITOR_MOD 0x24
+ #define AX_MONITOR_MODE_RWLC 0x02
+ #define AX_MONITOR_MODE_RWMP 0x04
+ #define AX_MONITOR_MODE_PMEPOL 0x20
+ #define AX_MONITOR_MODE_PMETYPE 0x40
+
+#define AX_GPIO_CTRL 0x25
+ #define AX_GPIO_CTRL_GPIO3EN 0x80
+ #define AX_GPIO_CTRL_GPIO2EN 0x40
+ #define AX_GPIO_CTRL_GPIO1EN 0x20
+
+#define AX_PHYPWR_RSTCTL 0x26
+ #define AX_PHYPWR_RSTCTL_BZ 0x0010
+ #define AX_PHYPWR_RSTCTL_IPRL 0x0020
+ #define AX_PHYPWR_RSTCTL_AT 0x1000
+
+#define AX88179A_VLAN_ID_ADDRESS 0x2A
+
+#define AX88179A_VLAN_ID_CONTROL 0x2B
+ #define AX_VLAN_CONTROL_WE 0x0001
+ #define AX_VLAN_CONTROL_RD 0x0002
+ #define AX_VLAN_CONTROL_VSO 0x0010
+ #define AX_VLAN_CONTROL_VFE 0x0020
+
+#define AX88179A_VLAN_ID_DATA0 0x2C
+#define AX88179A_VLAN_ID_DATA1 0x2D
+
+#define AX_RX_BULKIN_QCTRL 0x2e
+#define AX_GPHY_EEE_CTRL 0x01
+
+#define AX_CLK_SELECT 0x33
+ #define AX_CLK_SELECT_BCS 0x01
+ #define AX_CLK_SELECT_ACS 0x02
+ #define AX_CLK_SELECT_ULR 0x08
+
+#define AX_RXCOE_CTL 0x34
+ #define AX_RXCOE_IP 0x01
+ #define AX_RXCOE_TCP 0x02
+ #define AX_RXCOE_UDP 0x04
+ #define AX_RXCOE_TCPV6 0x20
+ #define AX_RXCOE_UDPV6 0x40
+
+#define AX_TXCOE_CTL 0x35
+ #define AX_TXCOE_IP 0x01
+ #define AX_TXCOE_TCP 0x02
+ #define AX_TXCOE_UDP 0x04
+ #define AX_TXCOE_TCPV6 0x20
+ #define AX_TXCOE_UDPV6 0x40
+
+#define AX88179A_MAC_BM_INT_MASK 0x41
+#define AX88179A_MAC_BM_RX_DMA_CTL 0x43
+#define AX88179A_MAC_BM_TX_DMA_CTL 0x46
+
+#define AX88179A_MAC_RX_STATUS_CDC 0x6D
+ #define AX_LSOFC_WCNT_7_ACCESS 0x03
+ #define AX_GMII_CRC_APPEND 0x10
+
+#define AX_LEDCTRL 0x73
+#define AX88179A_MAC_ARC_CTRL 0x9E
+#define AX88179A_MAC_SWP_CTRL 0xB1
+
+#define AX88179A_MAC_TX_PAUSE 0xB2
+
+#define AX88179A_MAC_CDC_DELAY_TX 0xB5
+
+#define AX88179A_MAC_PATH 0xB7
+ #define AX_MAC_RX_PATH_READY 0x01
+ #define AX_MAC_TX_PATH_READY 0x02
+
+#define AX88179A_NEW_PAUSE_CTRL 0xB8
+ #define AX_NEW_PAUSE_EN 0x01
+
+#define AX88179A_MAC_BULK_OUT_CTRL 0xB9
+ #define AX_MAC_EFF_EN 0x02
+
+#define AX88179A_MAC_RX_DATA_CDC_CNT 0xC0
+ #define AX_MAC_LSO_ERR_EN 0x04
+ #define AX_MAC_MIQFFCTRL_FORMAT 0x10
+ #define AX_MAC_MIQFFCTRL_DROP_CRC 0x20
+
+#define AX88179A_AUTODETACH_DELAY (5UL << 8)
+#define AX88179A_AUTODETACH_EN 1
+
+#define AX88179A_MAC_LSO_ENHANCE_CTRL 0xC3
+ #define AX_LSO_ENHANCE_EN 0x01
+
+#define AX88179A_MAC_TX_HDR_CKSUM 0xCC
+#define AX88179A_EP5_EHR 0xF9
+
+#define AX_PHY_POWER 0x02
+
+#define EPHY_LOW_POWER_EN 0x01
+#define S5_WOL_EN 0x04
+#define S5_WOL_LOW_POWER 0x20
+
+#define GMII_PHY_PHYSR 0x11
+ #define GMII_PHY_PHYSR_SMASK 0xc000
+ #define GMII_PHY_PHYSR_GIGA 0x8000
+ #define GMII_PHY_PHYSR_100 0x4000
+ #define GMII_PHY_PHYSR_FULL 0x2000
+ #define GMII_PHY_PHYSR_LINK 0x400
+
+#define GMII_LED_ACT 0x1a
+ #define GMII_LED_ACTIVE_MASK 0xff8f
+ #define GMII_LED0_ACTIVE BIT(4)
+ #define GMII_LED1_ACTIVE BIT(5)
+ #define GMII_LED2_ACTIVE BIT(6)
+
+#define GMII_LED_LINK 0x1c
+ #define GMII_LED_LINK_MASK 0xf888
+ #define GMII_LED0_LINK_10 BIT(0)
+ #define GMII_LED0_LINK_100 BIT(1)
+ #define GMII_LED0_LINK_1000 BIT(2)
+ #define GMII_LED1_LINK_10 BIT(4)
+ #define GMII_LED1_LINK_100 BIT(5)
+ #define GMII_LED1_LINK_1000 BIT(6)
+ #define GMII_LED2_LINK_10 BIT(8)
+ #define GMII_LED2_LINK_100 BIT(9)
+ #define GMII_LED2_LINK_1000 BIT(10)
+ #define LED0_ACTIVE BIT(0)
+ #define LED0_LINK_10 BIT(1)
+ #define LED0_LINK_100 BIT(2)
+ #define LED0_LINK_1000 BIT(3)
+ #define LED0_FD BIT(4)
+ #define LED0_USB3_MASK 0x001f
+ #define LED1_ACTIVE BIT(5)
+ #define LED1_LINK_10 BIT(6)
+ #define LED1_LINK_100 BIT(7)
+ #define LED1_LINK_1000 BIT(8)
+ #define LED1_FD BIT(9)
+ #define LED1_USB3_MASK 0x03e0
+ #define LED2_ACTIVE BIT(10)
+ #define LED2_LINK_1000 BIT(13)
+ #define LED2_LINK_100 BIT(12)
+ #define LED2_LINK_10 BIT(11)
+ #define LED2_FD BIT(14)
+ #define LED_VALID BIT(15)
+ #define LED2_USB3_MASK 0x7c00
+
+#define GMII_PHYPAGE 0x1e
+#define GMII_PHY_PAGE_SELECT 0x1f
+ #define GMII_PHY_PGSEL_EXT 0x0007
+ #define GMII_PHY_PGSEL_PAGE0 0x0000
+ #define GMII_PHY_PGSEL_PAGE3 0x0003
+ #define GMII_PHY_PGSEL_PAGE5 0x0005
+
+/* TX Descriptor */
+#define AX179A_TX_DESC_LEN_MASK 0x1FFFFF
+#define AX179A_TX_DESC_DROP_PADD BIT(28)
+#define AX179A_TX_DESC_VLAN BIT(29)
+#define AX179A_TX_DESC_MSS_MASK 0x7FFF
+#define AX179A_TX_DESC_MSS_SHIFT 0x20
+#define AX179A_TX_DESC_VLAN_MASK 0xFFFF
+#define AX179A_TX_DESC_VLAN_SHIFT 0x30
+
+/* RX Packet Descriptor */
+#define AX179A_RX_PD_L4_ERR BIT(0)
+#define AX179A_RX_PD_L3_ERR BIT(1)
+#define AX179A_RX_PD_L4_TYPE_MASK 0x1C
+#define AX179A_RX_PD_L4_UDP 0x04
+#define AX179A_RX_PD_L4_TCP 0x10
+#define AX179A_RX_PD_L3_TYPE_MASK 0x60
+#define AX179A_RX_PD_L3_IP 0x20
+#define AX179A_RX_PD_L3_IP6 0x40
+
+#define AX179A_RX_PD_VLAN BIT(10)
+#define AX179A_RX_PD_RX_OK BIT(11)
+#define AX179A_RX_PD_DROP BIT(31)
+#define AX179A_RX_PD_LEN_MASK 0x7FFF0000
+#define AX179A_RX_PD_LEN_SHIFT 0x10
+#define AX179A_RX_PD_VLAN_SHIFT 0x20
+
+/* RX Descriptor header */
+#define AX179A_RX_DH_PKT_CNT_MASK 0x1FFF
+#define AX179A_RX_DH_DESC_OFFSET_MASK 0xFFFFE000
+#define AX179A_RX_DH_DESC_OFFSET_SHIFT 0x0D
+
+#define AX179A_RX_HW_PAD 0x02
+
+#define AX_ADVERTISE_2500 0x1000
+
+enum ax_ether_link_speed {
+ ETHER_LINK_NONE = 0,
+ ETHER_LINK_10 = 1,
+ ETHER_LINK_100 = 2,
+ ETHER_LINK_1000 = 3,
+ ETHER_LINK_2500 = 4,
+};
+
+enum ax_chip_version {
+ AX_VERSION_INVALID = 0x0,
+ AX_VERSION_AX88179 = 0x4,
+ AX_VERSION_AX88179A = 0x6, /* Also AX88772D */
+ AX_VERSION_AX88279 = 0x7,
+};
+
+struct ax88179_data {
+ u8 eee_enabled;
+ u8 eee_active;
+ u16 rxctl;
+ u8 in_pm;
+ u32 wol_supported;
+ u32 wolopts;
+ u8 disconnecting;
+ u8 chip_version;
+ u8 fw_version[4];
+ u8 is_ax88772d;
+ u8 ip_align;
+ u8 link;
+ u8 speed;
+ u8 full_duplex;
+ u8 rx_checksum;
+ u8 eeprom_read_cmd;
+ u8 eeprom_write_cmd;
+ u8 eeprom_wen;
+ u16 eeprom_block;
+ struct mii_bus *mdio;
+ struct phy_device *phydev;
+ struct phylink *phylink;
+ struct phylink_config phylink_config;
+ int (*resume)(struct usb_interface *intf);
+ int (*suspend)(struct usb_interface *intf, pm_message_t message);
+};
+
+struct ax88179_int_data {
+ __le32 intdata1;
+ __le32 intdata2;
+};
+
+struct ax_bulkin_settings {
+ unsigned char ctrl, timer_l, timer_h, size, ifg;
+};
+
+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode);
+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);
+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);
+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size,
+ const void *data);
+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data);
+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc);
+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val);
+struct ax88179_data *netdev2data(struct net_device *net);
+void ax88179_status(struct usbnet *dev, struct urb *urb);
+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);
+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);
+void ax88179_set_multicast(struct net_device *net);
+int ax88179_set_features(struct net_device *net, netdev_features_t features);
+void ax88179_get_mac_addr(struct usbnet *dev);
+int ax88179_change_mtu(struct net_device *net, int new_mtu);
+int ax88179_set_mac_addr(struct net_device *net, void *p);
+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message);
+int ax88179_resume_wrapper(struct usb_interface *intf);
+
+extern const struct driver_info ax88179a_info;
+extern const struct driver_info ax88772d_info;
+extern const struct driver_info ax88279_info;
+
+#endif /*__LINUX_USBNET_AX88179_H */
diff --git a/drivers/net/usb/ax88179a_devices.c b/drivers/net/usb/ax88179a_devices.c
new file mode 100644
index 0000000000000..7408ac8c87a84
--- /dev/null
+++ b/drivers/net/usb/ax88179a_devices.c
@@ -0,0 +1,1210 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <linux/module.h>
+#include <linux/phylink.h>
+#include <linux/if_vlan.h>
+#include "ax88179_lib.h"
+
+static int ax88179a_reset(struct usbnet *dev);
+
+#define AX88279_EEPROM_LEN 0x4000
+#define AX88179A_EEPROM_LEN (32 * 20)
+
+enum ax_bulk_in_speeds {
+ BULK_IN_SPEED_2G5 = 0,
+ BULK_IN_SPEED_1G_SS = 1,
+ BULK_IN_SPEED_1G_HS = 2,
+ BULK_IN_SPEED_100_FULL_SS = 3,
+ BULK_IN_SPEED_100_HALF_SS = 4,
+ BULK_IN_SPEED_100_FULL_HS = 5,
+ BULK_IN_SPEED_100_HALF_HS = 6,
+ BULK_IN_SPEED_FS = 7,
+};
+
+static const struct ax_bulkin_settings AX88179A_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_1G_SS] = {5, 0x7B, 0x00, 0x17, 0x0F},
+ [BULK_IN_SPEED_1G_HS] = {5, 0xC0, 0x02, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_SS] = {7, 0xF0, 0x00, 0x0C, 0x0F},
+ [BULK_IN_SPEED_100_HALF_SS] = {6, 0x00, 0x00, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_HS] = {5, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static const struct ax_bulkin_settings AX88772D_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_100_FULL_HS] = {5, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static const struct ax_bulkin_settings AX88279_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_2G5] = {5, 0x10, 0x01, 0x11, 0x0F},
+ [BULK_IN_SPEED_1G_SS] = {7, 0xB3, 0x01, 0x11, 0x0F},
+ [BULK_IN_SPEED_1G_HS] = {7, 0xC0, 0x02, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_SS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_HALF_SS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_FULL_HS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static int ax88179_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum)
+{
+ struct usbnet *dev = bus->priv;
+ struct ax88179_data *priv;
+ u16 res;
+
+ priv = dev->driver_priv;
+ /* When reading PHYSID, return unused PHY-IDs from the ASIX vendor range */
+ if (phy_id == AX88179_PHY_ID && regnum == MII_PHYSID1)
+ return 0x003b;
+ if (phy_id == AX88179_PHY_ID && regnum == MII_PHYSID2) {
+ if (priv->chip_version == AX_VERSION_AX88179A && priv->is_ax88772d)
+ return 0x772d;
+ else if (priv->chip_version == AX_VERSION_AX88179A)
+ return 0x179a;
+ else if (priv->chip_version == AX_VERSION_AX88279)
+ return 0x2790;
+ }
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, &res);
+ return res;
+}
+
+static int ax88179_mdiobus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val)
+{
+ struct usbnet *dev = bus->priv;
+
+ return ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, &val);
+}
+
+static int ax179a_read_mmd(struct usbnet *dev, u16 dev_addr, u16 reg)
+{
+ u16 res;
+ int ret;
+
+ ret = ax88179_read_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, &res);
+ if (ret < 0)
+ return ret;
+ return res;
+}
+
+static int ax179a_write_mmd(struct usbnet *dev, u16 dev_addr, u16 reg, u16 data)
+{
+ return ax88179_write_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, &data);
+}
+
+static int ax88179_mdiobus_read_c45(struct mii_bus *bus, int addr, int devnum, int regnum)
+{
+ struct usbnet *dev = bus->priv;
+
+ if (addr != AX88179_PHY_ID)
+ return -EINVAL;
+
+ return ax179a_read_mmd(dev, devnum, regnum);
+}
+
+static int ax88179_mdiobus_write_c45(struct mii_bus *bus, int addr, int devnum,
+ int regnum, u16 val)
+{
+ struct usbnet *dev = bus->priv;
+
+ if (addr != AX88179_PHY_ID)
+ return -EINVAL;
+
+ return ax179a_write_mmd(dev, devnum, regnum, val);
+}
+
+static void ax88179a_status(struct usbnet *dev, struct urb *urb)
+{
+ if (urb->actual_length < 8)
+ return;
+
+ phylink_mac_interrupt(data->phylink);
+}
+
+static int ax88179a_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+ u16 tmp16;
+ u8 tmp8;
+
+ priv = dev->driver_priv;
+ ax88179_set_pm_mode(dev, true);
+
+ if (netif_running(dev->net)) {
+ rtnl_lock();
+ phylink_suspend(priv->phylink, !!priv->wolopts);
+ rtnl_unlock();
+ }
+
+ /* Enable WoL */
+ if (priv->wolopts) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, &tmp8);
+ if (priv->wolopts & WAKE_PHY)
+ tmp8 |= AX_MONITOR_MODE_RWLC;
+ if (priv->wolopts & WAKE_MAGIC)
+ tmp8 |= AX_MONITOR_MODE_RWMP;
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, &tmp8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &tmp16);
+ tmp16 |= AX_MEDIUM_RECEIVE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &tmp16);
+
+ if (priv->chip_version == AX_VERSION_AX88279)
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8,
+ EPHY_LOW_POWER_EN | S5_WOL_EN
+ | S5_WOL_LOW_POWER | 0x8000, 0, NULL);
+ else
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 0,
+ EPHY_LOW_POWER_EN, 0, NULL);
+
+ } else if (priv->chip_version == AX_VERSION_AX88279) {
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8, 0x8000, 0, NULL);
+ }
+
+ usbnet_suspend(intf, message);
+ ax88179_set_pm_mode(dev, false);
+ return 0;
+}
+
+static int ax88179a_auto_detach(struct usbnet *dev)
+{
+ u16 tmp16;
+
+ tmp16 = AX88179A_AUTODETACH_DELAY;
+ ax88179_write_cmd(dev, AX88179A_AUTODETACH, tmp16, 0, 0, NULL);
+ return 0;
+}
+
+static int ax88179a_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *ax179_data;
+ u8 reg8;
+
+ ax179_data = dev->driver_priv;
+ ax88179_set_pm_mode(dev, true);
+
+ ax88179_read_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ if (!(reg8 & AX_PHY_POWER)) {
+ reg8 = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+ }
+ ax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);
+
+ /* Now, that AX_FW_MODE_179A is enabled, the PHY needs a power-cycle.
+ * PHY-power is re-enabled in ax88179_reset()
+ */
+ reg8 = 0;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+
+ ax88179a_reset(dev);
+
+ if (netif_running(dev->net)) {
+ rtnl_lock();
+ phylink_resume(ax179_data->phylink);
+ rtnl_unlock();
+ }
+
+ ax88179_set_pm_mode(dev, false);
+
+ return usbnet_resume(intf);
+}
+
+static void ax88179a_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
+{
+ struct ax88179_data *priv = netdev2data(net);
+
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ if (priv->chip_version < AX_VERSION_AX88179A)
+ return;
+
+ snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d.%d",
+ priv->fw_version[0], priv->fw_version[1],
+ priv->fw_version[2], priv->fw_version[3]);
+}
+
+static void ax88179a_bulkin_config(struct usbnet *dev, u8 link_sts, u8 speed, bool full_duplex)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ const struct ax_bulkin_settings *bulkin_data;
+ int index = 0;
+
+ switch (speed) {
+ case ETHER_LINK_2500: /* AX88279 only */
+ index = BULK_IN_SPEED_2G5;
+ break;
+
+ case ETHER_LINK_1000: /* AX88279 & AX88178A */
+ if (link_sts & AX_USB_SS)
+ index = BULK_IN_SPEED_1G_SS;
+ else if (link_sts & AX_USB_HS)
+ index = BULK_IN_SPEED_1G_HS;
+ break;
+
+ case ETHER_LINK_100:
+ if (link_sts & AX_USB_SS)
+ index = BULK_IN_SPEED_100_FULL_SS;
+ else if (link_sts & AX_USB_HS)
+ index = BULK_IN_SPEED_100_FULL_HS;
+ if (!full_duplex)
+ index++;
+ break;
+
+ case ETHER_LINK_10:
+ index = BULK_IN_SPEED_FS;
+ break;
+
+ default: /* No link */
+ index = BULK_IN_SPEED_FS;
+ }
+
+ if (ax179_data->chip_version == AX_VERSION_AX88279 && (link_sts & AX_USB_FS))
+ index = BULK_IN_SPEED_FS;
+
+ if (ax179_data->chip_version == AX_VERSION_AX88279) {
+ bulkin_data = AX88279_BULKIN_SIZE;
+ } else {
+ if (ax179_data->is_ax88772d)
+ bulkin_data = AX88772D_BULKIN_SIZE;
+ else
+ bulkin_data = AX88179A_BULKIN_SIZE;
+ }
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, &bulkin_data[index]);
+}
+
+static void ax88179a_get_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)
+{
+ struct ax88179_data *data = netdev2data(net);
+
+ phylink_ethtool_get_pauseparam(data->phylink, pause);
+}
+
+static int ax88179a_set_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)
+{
+ struct ax88179_data *data = netdev2data(net);
+
+ return phylink_ethtool_set_pauseparam(data->phylink, pause);
+}
+
+static int ax88179a_get_eeprom_len(struct net_device *net)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ if (ax179_data->chip_version >= AX_VERSION_AX88279)
+ return AX88279_EEPROM_LEN;
+ else
+ return AX88179A_EEPROM_LEN;
+}
+
+static int ax88179a_get_eee(struct net_device *net, struct ethtool_keee *edata)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ return phylink_ethtool_get_eee(ax179_data->phylink, edata);
+}
+
+static int ax88179a_set_eee(struct net_device *net, struct ethtool_keee *edata)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ return phylink_ethtool_set_eee(ax179_data->phylink, edata);
+}
+
+static const struct ethtool_ops ax88179a_ethtool_ops = {
+ .get_drvinfo = ax88179a_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = ax88179_get_wol,
+ .set_wol = ax88179_set_wol,
+ .get_eeprom_len = ax88179a_get_eeprom_len,
+ .get_eeprom = ax88179_get_eeprom,
+ .set_eeprom = ax88179_set_eeprom,
+ .get_eee = ax88179a_get_eee,
+ .set_eee = ax88179a_set_eee,
+ .nway_reset = usbnet_nway_reset,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_pauseparam = ax88179a_get_pauseparam,
+ .set_pauseparam = ax88179a_set_pauseparam,
+ .get_ts_info = ethtool_op_get_ts_info,
+};
+
+static int ax88179a_vlan_rx_kill_vid(struct net_device *net, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 vlan_ctrl;
+ u16 reg16;
+ u8 reg8;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+ vlan_ctrl = reg8;
+
+ /* Address */
+ reg8 = (vid / 16);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, ®8);
+
+ /* Data */
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+ reg16 &= ~(1 << (vid % 16));
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ return 0;
+}
+
+static int ax88179a_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 vlan_ctrl;
+ u16 reg16;
+ u8 reg8;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+ vlan_ctrl = reg8;
+
+ /* Address */
+ reg8 = (vid / 16);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, ®8);
+
+ /* Data */
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+ reg16 |= (1 << (vid % 16));
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ return 0;
+}
+
+static void ax88179a_mdio_unregister(struct ax88179_data *data)
+{
+ mdiobus_unregister(data->mdio);
+ mdiobus_free(data->mdio);
+}
+
+static int ax88179a_init_phy(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ int ret;
+
+ data->phydev = mdiobus_get_phy(data->mdio, AX88179_PHY_ID);
+ if (!data->phydev) {
+ netdev_err(dev->net, "Could not find PHY\n");
+ return -ENODEV;
+ }
+
+ data->phydev->irq = PHY_MAC_INTERRUPT;
+ ret = phylink_connect_phy(data->phylink, data->phydev);
+ if (ret) {
+ netdev_err(dev->net, "Could not connect PHY\n");
+ return ret;
+ }
+
+ phy_suspend(data->phydev);
+ data->phydev->mac_managed_pm = true;
+
+ phy_attached_info(data->phydev);
+
+ return 0;
+}
+
+static void ax88179a_mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state)
+{
+ /* Nothing to do */
+}
+
+static void ax88179a_mac_link_down(struct phylink_config *config,
+ unsigned int mode, phy_interface_t interface)
+{
+ /* Nothing to do */
+}
+
+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)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u8 tmp8, link_sts, reg8[3];
+ u8 bulk_config_speed = 0;
+ u16 tmp16, mode;
+
+ /* Stop RX/TX for link configuration */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, &tmp8);
+
+ tmp8 = 0xa5;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_CDC_DELAY_TX, 1, 1, &tmp8);
+
+ tmp16 = 0x0410;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 2, 2, &tmp16);
+
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_ETH_TX_GAP, 1, 1, &tmp8);
+
+ tmp8 = 0x07;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_EP5_EHR, 1, 1, &tmp8);
+
+ tmp8 = 0x28 | AX_NEW_PAUSE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_NEW_PAUSE_CTRL, 1, 1, &tmp8);
+
+ mode = AX_MEDIUM_RECEIVE_EN;
+ if (tx_pause)
+ mode |= AX_MEDIUM_TXFLOW_CTRLEN;
+ if (rx_pause)
+ mode |= AX_MEDIUM_RXFLOW_CTRLEN;
+
+ switch (speed) {
+ case SPEED_2500:
+ reg8[0] = 0x00;
+ reg8[1] = 0xF8;
+ reg8[2] = 0x07;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_TX_PAUSE, 3, 3, reg8);
+
+ reg8[0] = 0x78;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5);
+ reg8[2] = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ reg8[0] = 0x40;
+ reg8[1] = AX_MAC_MIQFFCTRL_FORMAT | AX_MAC_MIQFFCTRL_DROP_CRC | AX_MAC_LSO_ERR_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 2, 2, reg8);
+
+ tmp8 = AX_XGMII_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, &tmp8);
+
+ tmp8 = 0x1C | AX_LSO_ENHANCE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_LSO_ENHANCE_CTRL, 1, 1, &tmp8);
+
+ mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_FULL_DUPLEX;
+ bulk_config_speed = ETHER_LINK_2500;
+
+ break;
+
+ case SPEED_1000:
+ mode |= AX_MEDIUM_GIGAMODE;
+ bulk_config_speed = ETHER_LINK_1000;
+ fallthrough;
+
+ case SPEED_100:
+ reg8[0] = 0x78;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5) | AX_GMII_CRC_APPEND;
+ reg8[2] = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ tmp8 = 0x40;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, &tmp8);
+ if (!bulk_config_speed)
+ bulk_config_speed = ETHER_LINK_100;
+ break;
+
+ case SPEED_10:
+ reg8[0] = 0xFA;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5) | AX_GMII_CRC_APPEND;
+ reg8[2] = 0xFF;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ tmp8 = 0xFA;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, &tmp8);
+
+ bulk_config_speed = ETHER_LINK_10;
+ break;
+ }
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 1, 1, &link_sts);
+ ax88179a_bulkin_config(dev, link_sts, bulk_config_speed, !!duplex);
+
+ if (ax179_data->chip_version < AX_VERSION_AX88279) {
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, &tmp8);
+ }
+
+ if (duplex)
+ mode |= AX_MEDIUM_FULL_DUPLEX;
+
+ if (dev->net->mtu > 1500)
+ mode |= AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &mode);
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &ax179_data->rxctl);
+
+ tmp8 = AX_MAC_RX_PATH_READY | AX_MAC_TX_PATH_READY;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, &tmp8);
+}
+
+static void ax88179a_mac_disable_tx_lpi(struct phylink_config *config)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+
+ ax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, false, 0, NULL);
+}
+
+static int ax88179a_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, bool tx_clk_stop)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+
+ /* AX88179A does not provide LPI timer registers */
+ return ax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, true, 0, NULL);
+}
+
+static const struct phylink_mac_ops ax88179a_phylink_mac_ops = {
+ .mac_config = ax88179a_mac_config,
+ .mac_link_down = ax88179a_mac_link_down,
+ .mac_link_up = ax88179a_mac_link_up,
+ .mac_disable_tx_lpi = ax88179a_mac_disable_tx_lpi,
+ .mac_enable_tx_lpi = ax88179a_mac_enable_tx_lpi,
+};
+
+static int ax88179a_phylink_setup(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ phy_interface_t phy_if_mode;
+ struct phylink *phylink;
+
+ data->phylink_config.dev = &dev->net->dev;
+ data->phylink_config.type = PHYLINK_NETDEV;
+ data->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_100;
+ if (data->is_ax88772d)
+ data->phylink_config.mac_capabilities |= MAC_10;
+ else if (data->chip_version < AX_VERSION_AX88279)
+ data->phylink_config.mac_capabilities |= MAC_10 | MAC_1000;
+ else
+ data->phylink_config.mac_capabilities |= MAC_1000 | MAC_2500FD;
+
+ if (!data->is_ax88772d) {
+ data->phylink_config.lpi_capabilities = MAC_100FD | MAC_1000FD;
+ data->phylink_config.eee_enabled_default = false;
+ }
+
+ if (data->chip_version == AX_VERSION_AX88279) {
+ __set_bit(PHY_INTERFACE_MODE_2500BASEX,
+ data->phylink_config.supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_SGMII,
+ data->phylink_config.supported_interfaces);
+ phy_if_mode = PHY_INTERFACE_MODE_2500BASEX;
+ } else {
+ __set_bit(PHY_INTERFACE_MODE_SGMII,
+ data->phylink_config.supported_interfaces);
+ phy_if_mode = PHY_INTERFACE_MODE_SGMII;
+ }
+
+ memcpy(data->phylink_config.lpi_interfaces,
+ data->phylink_config.supported_interfaces,
+ sizeof(data->phylink_config.lpi_interfaces));
+
+ phylink = phylink_create(&data->phylink_config, dev->net->dev.fwnode,
+ phy_if_mode, &ax88179a_phylink_mac_ops);
+ if (IS_ERR(phylink))
+ return PTR_ERR(phylink);
+
+ data->phylink = phylink;
+ return 0;
+}
+
+static int ax88179a_init_mdio(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ int ret;
+
+ data->mdio = mdiobus_alloc();
+ if (!data->mdio)
+ return -ENOMEM;
+
+ data->mdio->priv = dev;
+ data->mdio->read = ax88179_mdiobus_read;
+ data->mdio->write = ax88179_mdiobus_write;
+ data->mdio->read_c45 = ax88179_mdiobus_read_c45;
+ data->mdio->write_c45 = ax88179_mdiobus_write_c45;
+ data->mdio->name = "AX88179A MDIO Bus";
+ data->mdio->phy_mask = ~(1 << AX88179_PHY_ID);
+ /* mii bus name is usb-<usb bus number>-<usb device number> */
+ snprintf(data->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+ dev->udev->bus->busnum, dev->udev->devnum);
+
+ ret = mdiobus_register(data->mdio);
+ if (ret) {
+ netdev_err(dev->net, "Could not register MDIO bus (err %d)\n", ret);
+ mdiobus_free(data->mdio);
+ data->mdio = NULL;
+ }
+
+ return ret;
+}
+
+static int ax88179a_set_features(struct net_device *net, netdev_features_t features)
+{
+ struct usbnet *dev = netdev_priv(net);
+ netdev_features_t changed;
+ int ret;
+ u8 tmp;
+
+ changed = net->features ^ features;
+
+ ret = ax88179_set_features(net, features);
+ if (ret)
+ return ret;
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ tmp ^= AX_VLAN_CONTROL_VFE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ if (features & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ for (int i = 0; i < 256; i++) {
+ u16 tmp16 = 0;
+ /* Address */
+ tmp = i;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS,
+ 1, 1, &tmp);
+ /* Data */
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0,
+ 2, 2, &tmp16);
+ tmp = AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL,
+ 1, 1, &tmp);
+ }
+ }
+ }
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ tmp ^= AX_VLAN_CONTROL_VSO;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ }
+
+ return 0;
+}
+
+static const struct net_device_ops ax88179a_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_get_stats64 = dev_get_tstats64,
+ .ndo_change_mtu = ax88179_change_mtu,
+ .ndo_set_mac_address = ax88179_set_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_eth_ioctl = usbnet_mii_ioctl,
+ .ndo_set_rx_mode = ax88179_set_multicast,
+ .ndo_set_features = ax88179a_set_features,
+ .ndo_vlan_rx_add_vid = ax88179a_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = ax88179a_vlan_rx_kill_vid,
+};
+
+static int ax88179a_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct ax88179_data *ax179_data;
+ int ret;
+ u8 reg8;
+
+ /* Check if vendor configuration */
+ if (udev->actconfig->desc.bConfigurationValue != 1) {
+ netdev_info(dev->net, "Switching to vendor mode\n");
+ usb_driver_set_configuration(udev, 1);
+ return -ENODEV;
+ }
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret < 0)
+ return ret;
+
+ ax179_data = kzalloc_obj(*ax179_data);
+ if (!ax179_data)
+ return -ENOMEM;
+
+ dev->driver_priv = ax179_data;
+
+ ret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,
+ 1, 1, &ax179_data->chip_version);
+ if (ret < 0)
+ goto err_nodev;
+
+ ax179_data->chip_version = (ax179_data->chip_version & 0xf0) >> 4;
+ ax179_data->is_ax88772d = 0;
+ if (ax179_data->chip_version == AX_VERSION_AX88179A) {
+ if (udev->descriptor.bcdDevice == 0x300)
+ ax179_data->is_ax88772d = 1;
+ }
+
+ for (int i = 0; i < 3; i++) {
+ ret = ax88179_read_cmd(dev, AX88179A_ACCESS_BL, (0xFD + i),
+ 1, 1, &ax179_data->fw_version[i]);
+ if (ret < 0)
+ ax179_data->fw_version[i] = 0xff;
+ }
+ netdev_info(dev->net, "AX88179A/279/772D Chip Version: %x, FW: %d.%d.%d.%d\n",
+ ax179_data->chip_version,
+ ax179_data->fw_version[0], ax179_data->fw_version[1],
+ ax179_data->fw_version[2], ax179_data->fw_version[3]);
+
+ /* The AX88279 requires both the AX_RX_CTL_IPE and AX_RX_CTL_DROPCRCERR
+ * bits set in AX_RX_CTL for creating correct RX-URBs. AX_RX_CTL_DROPCRCERR
+ * is anyway set for all chips, make sure AX_RX_CTL_IPE is set via ip_align.
+ * Also configure eeprom access parameters.
+ */
+ if (ax179_data->chip_version == AX_VERSION_AX88279) {
+ ax179_data->ip_align = 1;
+ ax179_data->eeprom_read_cmd = AX88179A_FLASH_READ;
+ ax179_data->eeprom_write_cmd = AX88179A_FLASH_WRITE;
+ ax179_data->eeprom_block = 256;
+ ax179_data->eeprom_wen = 1;
+ } else {
+ ax179_data->ip_align = 0;
+ ax179_data->eeprom_read_cmd = AX_ACCESS_EFUS;
+ ax179_data->eeprom_write_cmd = AX_ACCESS_EFUS;
+ ax179_data->eeprom_block = 20;
+ ax179_data->eeprom_wen = 0;
+ }
+
+ ax179_data->resume = ax88179a_resume;
+ ax179_data->suspend = ax88179a_suspend;
+
+ dev->net->netdev_ops = &ax88179a_netdev_ops;
+ dev->net->ethtool_ops = &ax88179a_ethtool_ops;
+ dev->net->needed_headroom = 8;
+ dev->net->needed_tailroom = 8;
+ dev->net->min_mtu = ETH_MIN_MTU;
+ dev->hard_mtu = 9 * 1024;
+ dev->net->max_mtu = dev->hard_mtu - dev->net->hard_header_len;
+
+ if (!ax179_data->is_ax88772d)
+ dev->mii.supports_gmii = 1;
+
+ dev->net->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_FILTER;
+
+ dev->net->hw_features |= dev->net->features;
+
+ dev->net->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO;
+
+ netif_set_tso_max_size(dev->net, 16384);
+
+ /* Enable Transmission of Link Speed byte in interrupt URB */
+ ax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);
+ ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0, 0, 0, NULL);
+
+ /* Read MAC address from DTB or ASIX chip */
+ ax88179_get_mac_addr(dev);
+ memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
+
+ /* Power PHY for probing */
+ reg8 = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+
+ ret = ax88179a_init_mdio(dev);
+ if (ret)
+ goto err_nodev;
+
+ ret = ax88179a_phylink_setup(dev);
+ if (ret)
+ goto phylink_err;
+
+ ret = ax88179a_init_phy(dev);
+ if (ret)
+ goto initphy_err;
+
+ return 0;
+
+initphy_err:
+ phylink_destroy(ax179_data->phylink);
+phylink_err:
+ ax88179a_mdio_unregister(ax179_data);
+err_nodev:
+ kfree(ax179_data);
+ ax179_data = NULL;
+
+ return ret;
+}
+
+static void ax88179a_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u16 tmp16;
+ u8 tmp8;
+
+ /* Configure RX control register => stop operation */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+
+ rtnl_lock();
+ phylink_disconnect_phy(ax179_data->phylink);
+ rtnl_unlock();
+ phylink_destroy(ax179_data->phylink);
+ ax88179a_mdio_unregister(ax179_data);
+
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, &tmp8);
+
+ kfree(ax179_data);
+}
+
+static void ax88179a_rx_checksum(struct sk_buff *skb, u64 pkt_desc)
+{
+ u32 pkt_type;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ /* checksum error bit is set */
+ if (pkt_desc & AX179A_RX_PD_L4_ERR || pkt_desc & AX179A_RX_PD_L3_ERR)
+ return;
+
+ pkt_type = pkt_desc & AX179A_RX_PD_L4_TYPE_MASK;
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (pkt_type == AX179A_RX_PD_L4_TCP || pkt_type == AX179A_RX_PD_L4_UDP)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+}
+
+static int ax88179a_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ struct sk_buff *ax_skb;
+ u32 hdr_off, pkt_end;
+ u64 *pkt_desc_ptr;
+ u16 vlan_tag;
+ u16 pkt_cnt;
+ u64 rx_hdr;
+
+ /* SKB contents for AX179A-based chips:
+ * <packet 1>
+ * ...
+ * <packet N>
+ * <per-packet metadata entry 1>
+ * ...
+ * <per-packet metadata entry N>
+ * <rx_hdr>
+ *
+ * where:
+ * <packet N> contains pkt_len data bytes and padding:
+ * 2 bytes of IP alignment (optional, depends on AX_RX_CTL_IPE flag)
+ * packet data received
+ * optional padding to 8-bytes boundary
+ * <per-packet metadata entry N> contains 8 bytes:
+ * pkt_len and fields AX_RXHDR_*
+ * <rx-hdr> contains 8 bytes:
+ * pkt_cnt and hdr_off (offset of <per-packet metadata entry 1>)
+ *
+ * pkt_cnt is number of entries in the per-packet metadata array.
+ */
+
+ if (!skb || skb->len < sizeof(rx_hdr))
+ goto err;
+
+ /* RX Descriptor Header */
+ skb_trim(skb, skb->len - sizeof(rx_hdr));
+ rx_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb));
+
+ /* Check these packets */
+ hdr_off = (rx_hdr & AX179A_RX_DH_DESC_OFFSET_MASK) >> AX179A_RX_DH_DESC_OFFSET_SHIFT;
+ pkt_cnt = rx_hdr & AX179A_RX_DH_PKT_CNT_MASK;
+
+ /* Consistency check header position */
+ if (hdr_off != skb->len - (pkt_cnt * sizeof(rx_hdr)))
+ goto err;
+
+ /* Make sure that the bounds of the metadata array are inside the SKB
+ * (and in front of the counter at the end).
+ */
+ if (pkt_cnt * 8 + hdr_off > skb->len)
+ goto err;
+
+ /* Packets must not overlap the metadata array */
+ skb_trim(skb, hdr_off);
+
+ if (!pkt_cnt)
+ goto err;
+
+ /* Get the first RX packet descriptor */
+ pkt_desc_ptr = (u64 *)(skb->data + hdr_off);
+
+ pkt_end = 0;
+ while (pkt_cnt--) {
+ u64 pkt_desc = le64_to_cpup(pkt_desc_ptr);
+ u32 pkt_len_plus_padd;
+ u32 pkt_len;
+
+ pkt_len = (u32)((pkt_desc & AX179A_RX_PD_LEN_MASK) >> AX179A_RX_PD_LEN_SHIFT)
+ - (ax179_data->ip_align ? 2 : 0);
+ pkt_len_plus_padd = ((pkt_len + 7 + (ax179_data->ip_align ? 2 : 0)) & 0x7FFF8);
+
+ pkt_end += pkt_len_plus_padd;
+ if (pkt_end > hdr_off || (pkt_cnt == 0 && pkt_end != hdr_off))
+ goto err;
+
+ if (pkt_desc & AX179A_RX_PD_DROP || !(pkt_desc & AX179A_RX_PD_RX_OK) ||
+ pkt_len > (dev->hard_mtu + AX179A_RX_HW_PAD)) {
+ skb_pull(skb, pkt_len_plus_padd);
+
+ /* Next RX Packet Descriptor */
+ pkt_desc_ptr++;
+ continue;
+ }
+
+ ax_skb = netdev_alloc_skb_ip_align(dev->net, pkt_len);
+ if (!ax_skb)
+ goto err;
+
+ skb_put(ax_skb, pkt_len);
+ memcpy(ax_skb->data, skb->data + (ax179_data->ip_align ? AX179A_RX_HW_PAD : 0),
+ pkt_len);
+
+ if (ax179_data->rx_checksum)
+ ax88179a_rx_checksum(ax_skb, pkt_desc);
+
+ if (pkt_desc & AX179A_RX_PD_VLAN) {
+ vlan_tag = pkt_desc >> AX179A_RX_PD_VLAN_SHIFT;
+ __vlan_hwaccel_put_tag(ax_skb, htons(ETH_P_8021Q),
+ vlan_tag & VLAN_VID_MASK);
+ }
+
+ usbnet_skb_return(dev, ax_skb);
+ skb_pull(skb, pkt_len_plus_padd);
+
+ /* Next RX Packet Header */
+ pkt_desc_ptr++;
+ }
+
+ return 1;
+
+err:
+ return 0;
+}
+
+static struct sk_buff *ax88179a_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ u64 tx_desc = skb->len & AX179A_TX_DESC_LEN_MASK;
+ int frame_size = dev->maxpacket;
+ struct sk_buff *ax_skb;
+ u64 *tx_desc_ptr;
+ int padding_size;
+ int headroom;
+ int tailroom;
+ u16 tci = 0;
+
+ /* TSO MSS */
+ tx_desc |= ((u64)(skb_shinfo(skb)->gso_size & AX179A_TX_DESC_MSS_MASK)) <<
+ AX179A_TX_DESC_MSS_SHIFT;
+
+ headroom = (skb->len + sizeof(tx_desc)) % 8;
+ padding_size = headroom ? 8 - headroom : 0;
+
+ if (((skb->len + sizeof(tx_desc) + padding_size) % frame_size) == 0) {
+ padding_size += 8;
+ tx_desc |= AX179A_TX_DESC_DROP_PADD;
+ }
+
+ if ((dev->net->features & NETIF_F_HW_VLAN_CTAG_TX) && (vlan_get_tag(skb, &tci) >= 0)) {
+ tx_desc |= AX179A_TX_DESC_VLAN;
+ tx_desc |= ((u64)tci & AX179A_TX_DESC_VLAN_MASK) << AX179A_TX_DESC_VLAN_SHIFT;
+ }
+
+ if (!dev->can_dma_sg && (dev->net->features & NETIF_F_SG) && skb_linearize(skb))
+ return NULL;
+
+ headroom = skb_headroom(skb);
+ tailroom = skb_tailroom(skb);
+
+ if (!(headroom >= sizeof(tx_desc) && tailroom >= padding_size)) {
+ ax_skb = skb_copy_expand(skb, sizeof(tx_desc), padding_size, flags);
+ dev_kfree_skb_any(skb);
+ skb = ax_skb;
+ if (!skb)
+ return NULL;
+ }
+ if (padding_size != 0)
+ skb_put_zero(skb, padding_size);
+ /* Copy TX header */
+ tx_desc_ptr = skb_push(skb, sizeof(tx_desc));
+ *tx_desc_ptr = cpu_to_le64(tx_desc);
+
+ usbnet_set_skb_tx_stats(skb, 1, 0);
+
+ return skb;
+}
+
+static int ax88179a_reset(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u16 *tmp16;
+ u8 buf[5];
+ u8 *tmp;
+
+ tmp16 = (u16 *)buf;
+ tmp = (u8 *)buf;
+
+ /* Power up ethernet PHY */
+ *tmp = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, tmp);
+ msleep(250);
+
+ /* Ethernet PHY Auto Detach*/
+ ax88179a_auto_detach(dev);
+
+ *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;
+ 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);
+
+ /* The Bulk-Register configuration for the AX88179A is done in
+ * ax88179a_mac_link_up(), 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 */
+ 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;
+ 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;
+ if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
+ 1, 1, &tmp) > 0)
+ ax179_data->wol_supported = WAKE_MAGIC | WAKE_PHY;
+
+ /* ax88179a_reset() may also be called from resume context, phylink
+ * is already started, then.
+ */
+ if (!ax179_data->in_pm)
+ phylink_start(ax179_data->phylink);
+
+ usbnet_link_change(dev, 0, 0);
+
+ return 0;
+}
+
+static int ax88179a_stop(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ 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);
+
+ phylink_stop(ax179_data->phylink);
+
+ return 0;
+}
+
+const struct driver_info ax88179a_info = {
+ .description = "ASIX AX88179A USB 3.2 Gigabit Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
+
+const struct driver_info ax88772d_info = {
+ .description = "ASIX AX88772D/E USB 2.0 Fast Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
+
+const struct driver_info ax88279_info = {
+ .description = "ASIX AX88279 USB 3.2 2.5Gigabit Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 5f8d65868e0ff..d5f8e527ce8df 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -64,6 +64,7 @@ extern const int phy_basic_ports_array[3];
#define PHY_RST_AFTER_CLK_EN 0x00000002
#define PHY_POLL_CABLE_TEST 0x00000004
#define PHY_ALWAYS_CALL_SUSPEND 0x00000008
+#define PHY_BROKEN_FORCED 0x00000010
#define MDIO_DEVICE_IS_PHY 0x80000000
/**
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 1dda5c7ed5f14..f6c1db837fb50 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -768,6 +768,7 @@ int phylink_ethtool_set_eee(struct phylink *link, struct ethtool_keee *eee);
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
int phylink_speed_down(struct phylink *pl, bool sync);
int phylink_speed_up(struct phylink *pl);
+void phylink_mac_interrupt(struct phylink *pl);
#define phylink_zero(bm) \
bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
|
| 3/2 | 2026/09/03 13:35 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 49189 output: 32 thoughts: 1084 Thoughts: **Patch Analysis and Fuzzing Strategy** Okay, let's break this down. My initial thought is to determine if this patch, specifically the changes related to the ASIX AX88179 USB Ethernet driver, warrants fuzzing with syzkaller. The changes are spread across several files, so I need to go through each of them methodically. First, I see the `MAINTAINERS` file has been updated, which is good housekeeping. Then, the addition of PHY IDs and associated driver callbacks in `drivers/net/phy/ax88796b.c` immediately catches my eye. PHY interactions are always interesting from a fuzzing perspective, especially around configuration and status reads. The addition of the `PHY_BROKEN_FORCED` flag check in `phy_ethtool_ksettings_set` in `drivers/net/phy/phy.c` could be a point of interest, as could the addition of `phylink_mac_interrupt` in `drivers/net/phy/phylink.c`. These are all areas that require careful attention in order to get a comprehensive view of the changes. The Kconfig and Makefile updates (in `drivers/net/usb/Kconfig` and `Makefile`) indicate the driver is being properly built and configured, and the refactoring in `drivers/net/usb/ax88179_178a.c` into `ax88179_lib.c` makes the code look cleaner. The introduction of helper functions (in `ax88179_lib.c` and `ax88179_lib.h`) suggests potentially reusable functionality related to EEPROM access, multicast settings, and MTU changes. These can be valuable areas of fuzzing. Crucially, `drivers/net/usb/ax88179a_devices.c` appears to be where the core driver logic resides, including bind/unbind, RX/TX fixups, reset, status reporting, phylink and ethtool operations, MDIO bus management, and VLAN filtering. This is the heart of the driver, and undoubtedly the most important place to focus on. The updates in `include/linux/phy.h` and `include/linux/phylink.h` are standard and will need to be cross referenced when I examine `ax88179a_devices.c`. Now, does syzkaller have the ability to reach this code? Absolutely. USB network drivers, particularly `usbnet` drivers, are well-supported in syzkaller. I can exploit this with the use of the USB Raw Gadget or USB device emulation, and it's something I have considerable experience with. This opens up the possibility of fuzzing the USB protocol, RX/TX fixups, and various ioctls (ethtool, netdev, phylink, VLAN, etc.). Syzkaller can probe USB devices with specific IDs (like 0x0b95:0x1790) or, more generally, USB network devices. However, I need to look closely at `drivers/net/usb/ax88179a_devices.c`. In particular, a quick scan reveals a potential issue in the `ax88179a_status` function. It looks like it is accessing a variable `data->phylink`, but the code doesn't seem to define `data` in that scope. That looks like a straightforward use after free. I need to confirm whether `data` is actually defined. This is a potential bug or vulnerability! I'm going to compile this code and see what `data` is. I'm also going to grep and read the file to confirm the definition, and find out what I'm dealing with. |
| 4/2 | 2026/09/03 13:35 | tool | grepper |
0mArgs:{
"Expression": "phylink_mac_interrupt",
"PathPrefix": "drivers/net/usb/"
}Results: {
"Output": "drivers/net/usb/ax88179a_devices.c=118=static void ax88179a_status(struct usbnet *dev, struct urb *urb)\n--\ndrivers/net/usb/ax88179a_devices.c-122-\ndrivers/net/usb/ax88179a_devices.c:123:\tphylink_mac_interrupt(data-\u003ephylink);\ndrivers/net/usb/ax88179a_devices.c-124-}\n"
} |
| 5/2 | 2026/09/03 13:35 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 51252 output: 45 thoughts: 55 Thoughts: Here's my take on the thought process: **Diving into the AX88179A Driver** Okay, hold on a second. I'm seeing something here that makes me pause – the `ax88179a_devices.c` file mentions `data->phylink`? That's not immediately obvious based on what I recall. This is interesting. I'm going to jump into the code right now, specifically, I need to take a look at `drivers/net/usb/ax88179a_devices.c`. I need to start digging around line 118, that should be around the area where it's declared and used. Let's see what that context reveals. I need to get a better understanding of how this particular driver is handling its PHY interface. |
| 6/2 | 2026/09/03 13:35 | tool | read-file |
0mArgs:{
"File": "drivers/net/usb/ax88179a_devices.c",
"FirstLine": 110,
"LineCount": 25
}Results: {
"Contents": " 110:\t\tstruct usbnet *dev = bus-\u003epriv;\n 111:\t\n 112:\t\tif (addr != AX88179_PHY_ID)\n 113:\t\t\treturn -EINVAL;\n 114:\t\n 115:\t\treturn ax179a_write_mmd(dev, devnum, regnum, val);\n 116:\t}\n 117:\t\n 118:\tstatic void ax88179a_status(struct usbnet *dev, struct urb *urb)\n 119:\t{\n 120:\t\tif (urb-\u003eactual_length \u003c 8)\n 121:\t\t\treturn;\n 122:\t\n 123:\t\tphylink_mac_interrupt(data-\u003ephylink);\n 124:\t}\n 125:\t\n 126:\tstatic int ax88179a_suspend(struct usb_interface *intf, pm_message_t message)\n 127:\t{\n 128:\t\tstruct usbnet *dev = usb_get_intfdata(intf);\n 129:\t\tstruct ax88179_data *priv;\n 130:\t\tu16 tmp16;\n 131:\t\tu8 tmp8;\n 132:\t\n 133:\t\tpriv = dev-\u003edriver_priv;\n 134:\t\tax88179_set_pm_mode(dev, true);\n"
} |
| 7/2 | 2026/09/03 13:35 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 51914 output: 42 thoughts: 39 Thoughts: Okay, here's my interpretation of those thoughts, summarized from my perspective as someone familiar with code and debugging: **Debugging a Missing Variable** Alright, so I'm looking at this `ax88179a_status` function, and it's complaining about `data` not being defined. Hmm, that's odd. It *should* be defined, I mean, it's not like I just made it up. Unless... is `data` maybe a global variable, accessible from anywhere? That's the only way I can see this happening. The scope of `data` has to be global for it to be recognized within the `ax88179a_status` function if it's not otherwise defined within that function's scope. Okay, let's take a quick look around and verify. I need to make sure I understand where `data` *should* be defined. If it's supposed to be local, then something's seriously wrong, and I need to figure out where the intended definition is actually located and why it's not being recognized. Let me check for that global declaration first. |
| 8/2 | 2026/09/03 13:36 | tool | grepper |
0mArgs:{
"Expression": "\\bdata\\b",
"PathPrefix": "drivers/net/usb/ax88179a_devices.c"
}Results: {
"Output": "drivers/net/usb/ax88179a_devices.c=81=static int ax179a_read_mmd(struct usbnet *dev, u16 dev_addr, u16 reg)\n--\ndrivers/net/usb/ax88179a_devices.c-91-\ndrivers/net/usb/ax88179a_devices.c:92:static int ax179a_write_mmd(struct usbnet *dev, u16 dev_addr, u16 reg, u16 data)\ndrivers/net/usb/ax88179a_devices.c-93-{\ndrivers/net/usb/ax88179a_devices.c:94:\treturn ax88179_write_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, \u0026data);\ndrivers/net/usb/ax88179a_devices.c-95-}\n--\ndrivers/net/usb/ax88179a_devices.c=118=static void ax88179a_status(struct usbnet *dev, struct urb *urb)\n--\ndrivers/net/usb/ax88179a_devices.c-122-\ndrivers/net/usb/ax88179a_devices.c:123:\tphylink_mac_interrupt(data-\u003ephylink);\ndrivers/net/usb/ax88179a_devices.c-124-}\n--\ndrivers/net/usb/ax88179a_devices.c=283=static void ax88179a_get_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)\ndrivers/net/usb/ax88179a_devices.c-284-{\ndrivers/net/usb/ax88179a_devices.c:285:\tstruct ax88179_data *data = netdev2data(net);\ndrivers/net/usb/ax88179a_devices.c-286-\ndrivers/net/usb/ax88179a_devices.c:287:\tphylink_ethtool_get_pauseparam(data-\u003ephylink, pause);\ndrivers/net/usb/ax88179a_devices.c-288-}\n--\ndrivers/net/usb/ax88179a_devices.c=290=static int ax88179a_set_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)\ndrivers/net/usb/ax88179a_devices.c-291-{\ndrivers/net/usb/ax88179a_devices.c:292:\tstruct ax88179_data *data = netdev2data(net);\ndrivers/net/usb/ax88179a_devices.c-293-\ndrivers/net/usb/ax88179a_devices.c:294:\treturn phylink_ethtool_set_pauseparam(data-\u003ephylink, pause);\ndrivers/net/usb/ax88179a_devices.c-295-}\n--\ndrivers/net/usb/ax88179a_devices.c=369=static int ax88179a_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)\n--\ndrivers/net/usb/ax88179a_devices.c-396-\ndrivers/net/usb/ax88179a_devices.c:397:static void ax88179a_mdio_unregister(struct ax88179_data *data)\ndrivers/net/usb/ax88179a_devices.c-398-{\ndrivers/net/usb/ax88179a_devices.c:399:\tmdiobus_unregister(data-\u003emdio);\ndrivers/net/usb/ax88179a_devices.c:400:\tmdiobus_free(data-\u003emdio);\ndrivers/net/usb/ax88179a_devices.c-401-}\n--\ndrivers/net/usb/ax88179a_devices.c=403=static int ax88179a_init_phy(struct usbnet *dev)\ndrivers/net/usb/ax88179a_devices.c-404-{\ndrivers/net/usb/ax88179a_devices.c:405:\tstruct ax88179_data *data = dev-\u003edriver_priv;\ndrivers/net/usb/ax88179a_devices.c-406-\tint ret;\ndrivers/net/usb/ax88179a_devices.c-407-\ndrivers/net/usb/ax88179a_devices.c:408:\tdata-\u003ephydev = mdiobus_get_phy(data-\u003emdio, AX88179_PHY_ID);\ndrivers/net/usb/ax88179a_devices.c:409:\tif (!data-\u003ephydev) {\ndrivers/net/usb/ax88179a_devices.c-410-\t\tnetdev_err(dev-\u003enet, \"Could not find PHY\\n\");\n--\ndrivers/net/usb/ax88179a_devices.c-413-\ndrivers/net/usb/ax88179a_devices.c:414:\tdata-\u003ephydev-\u003eirq = PHY_MAC_INTERRUPT;\ndrivers/net/usb/ax88179a_devices.c:415:\tret = phylink_connect_phy(data-\u003ephylink, data-\u003ephydev);\ndrivers/net/usb/ax88179a_devices.c-416-\tif (ret) {\n--\ndrivers/net/usb/ax88179a_devices.c-420-\ndrivers/net/usb/ax88179a_devices.c:421:\tphy_suspend(data-\u003ephydev);\ndrivers/net/usb/ax88179a_devices.c:422:\tdata-\u003ephydev-\u003emac_managed_pm = true;\ndrivers/net/usb/ax88179a_devices.c-423-\ndrivers/net/usb/ax88179a_devices.c:424:\tphy_attached_info(data-\u003ephydev);\ndrivers/net/usb/ax88179a_devices.c-425-\n--\ndrivers/net/usb/ax88179a_devices.c=581=static int ax88179a_phylink_setup(struct usbnet *dev)\ndrivers/net/usb/ax88179a_devices.c-582-{\ndrivers/net/usb/ax88179a_devices.c:583:\tstruct ax88179_data *data = dev-\u003edriver_priv;\ndrivers/net/usb/ax88179a_devices.c-584-\tphy_interface_t phy_if_mode;\n--\ndrivers/net/usb/ax88179a_devices.c-586-\ndrivers/net/usb/ax88179a_devices.c:587:\tdata-\u003ephylink_config.dev = \u0026dev-\u003enet-\u003edev;\ndrivers/net/usb/ax88179a_devices.c:588:\tdata-\u003ephylink_config.type = PHYLINK_NETDEV;\ndrivers/net/usb/ax88179a_devices.c:589:\tdata-\u003ephylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_100;\ndrivers/net/usb/ax88179a_devices.c:590:\tif (data-\u003eis_ax88772d)\ndrivers/net/usb/ax88179a_devices.c:591:\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_10;\ndrivers/net/usb/ax88179a_devices.c:592:\telse if (data-\u003echip_version \u003c AX_VERSION_AX88279)\ndrivers/net/usb/ax88179a_devices.c:593:\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_10 | MAC_1000;\ndrivers/net/usb/ax88179a_devices.c-594-\telse\ndrivers/net/usb/ax88179a_devices.c:595:\t\tdata-\u003ephylink_config.mac_capabilities |= MAC_1000 | MAC_2500FD;\ndrivers/net/usb/ax88179a_devices.c-596-\ndrivers/net/usb/ax88179a_devices.c:597:\tif (!data-\u003eis_ax88772d) {\ndrivers/net/usb/ax88179a_devices.c:598:\t\tdata-\u003ephylink_config.lpi_capabilities = MAC_100FD | MAC_1000FD;\ndrivers/net/usb/ax88179a_devices.c:599:\t\tdata-\u003ephylink_config.eee_enabled_default = false;\ndrivers/net/usb/ax88179a_devices.c-600-\t}\ndrivers/net/usb/ax88179a_devices.c-601-\ndrivers/net/usb/ax88179a_devices.c:602:\tif (data-\u003echip_version == AX_VERSION_AX88279) {\ndrivers/net/usb/ax88179a_devices.c-603-\t\t__set_bit(PHY_INTERFACE_MODE_2500BASEX,\ndrivers/net/usb/ax88179a_devices.c:604:\t\t\t data-\u003ephylink_config.supported_interfaces);\ndrivers/net/usb/ax88179a_devices.c-605-\t\t__set_bit(PHY_INTERFACE_MODE_SGMII,\ndrivers/net/usb/ax88179a_devices.c:606:\t\t\t data-\u003ephylink_config.supported_interfaces);\ndrivers/net/usb/ax88179a_devices.c-607-\t\tphy_if_mode = PHY_INTERFACE_MODE_2500BASEX;\n--\ndrivers/net/usb/ax88179a_devices.c-609-\t\t__set_bit(PHY_INTERFACE_MODE_SGMII,\ndrivers/net/usb/ax88179a_devices.c:610:\t\t\t data-\u003ephylink_config.supported_interfaces);\ndrivers/net/usb/ax88179a_devices.c-611-\t\tphy_if_mode = PHY_INTERFACE_MODE_SGMII;\n--\ndrivers/net/usb/ax88179a_devices.c-613-\ndrivers/net/usb/ax88179a_devices.c:614:\tmemcpy(data-\u003ephylink_config.lpi_interfaces,\ndrivers/net/usb/ax88179a_devices.c:615:\t data-\u003ephylink_config.supported_interfaces,\ndrivers/net/usb/ax88179a_devices.c:616:\t sizeof(data-\u003ephylink_config.lpi_interfaces));\ndrivers/net/usb/ax88179a_devices.c-617-\ndrivers/net/usb/ax88179a_devices.c:618:\tphylink = phylink_create(\u0026data-\u003ephylink_config, dev-\u003enet-\u003edev.fwnode,\ndrivers/net/usb/ax88179a_devices.c-619-\t\t\t\t phy_if_mode, \u0026ax88179a_phylink_mac_ops);\n--\ndrivers/net/usb/ax88179a_devices.c-622-\ndrivers/net/usb/ax88179a_devices.c:623:\tdata-\u003ephylink = phylink;\ndrivers/net/usb/ax88179a_devices.c-624-\treturn 0;\n--\ndrivers/net/usb/ax88179a_devices.c=627=static int ax88179a_init_mdio(struct usbnet *dev)\ndrivers/net/usb/ax88179a_devices.c-628-{\ndrivers/net/usb/ax88179a_devices.c:629:\tstruct ax88179_data *data = dev-\u003edriver_priv;\ndrivers/net/usb/ax88179a_devices.c-630-\tint ret;\ndrivers/net/usb/ax88179a_devices.c-631-\ndrivers/net/usb/ax88179a_devices.c:632:\tdata-\u003emdio = mdiobus_alloc();\ndrivers/net/usb/ax88179a_devices.c:633:\tif (!data-\u003emdio)\ndrivers/net/usb/ax88179a_devices.c-634-\t\treturn -ENOMEM;\ndrivers/net/usb/ax88179a_devices.c-635-\ndrivers/net/usb/ax88179a_devices.c:636:\tdata-\u003emdio-\u003epriv = dev;\ndrivers/net/usb/ax88179a_devices.c:637:\tdata-\u003emdio-\u003eread = ax88179_mdiobus_read;\ndrivers/net/usb/ax88179a_devices.c:638:\tdata-\u003emdio-\u003ewrite = ax88179_mdiobus_write;\ndrivers/net/usb/ax88179a_devices.c:639:\tdata-\u003emdio-\u003eread_c45 = ax88179_mdiobus_read_c45;\ndrivers/net/usb/ax88179a_devices.c:640:\tdata-\u003emdio-\u003ewrite_c45 = ax88179_mdiobus_write_c45;\ndrivers/net/usb/ax88179a_devices.c:641:\tdata-\u003emdio-\u003ename = \"AX88179A MDIO Bus\";\ndrivers/net/usb/ax88179a_devices.c:642:\tdata-\u003emdio-\u003ephy_mask = ~(1 \u003c\u003c AX88179_PHY_ID);\ndrivers/net/usb/ax88179a_devices.c-643-\t/* mii bus name is usb-\u003cusb bus number\u003e-\u003cusb device number\u003e */\ndrivers/net/usb/ax88179a_devices.c:644:\tsnprintf(data-\u003emdio-\u003eid, MII_BUS_ID_SIZE, \"usb-%03d:%03d\",\ndrivers/net/usb/ax88179a_devices.c-645-\t\t dev-\u003eudev-\u003ebus-\u003ebusnum, dev-\u003eudev-\u003edevnum);\ndrivers/net/usb/ax88179a_devices.c-646-\ndrivers/net/usb/ax88179a_devices.c:647:\tret = mdiobus_register(data-\u003emdio);\ndrivers/net/usb/ax88179a_devices.c-648-\tif (ret) {\ndrivers/net/usb/ax88179a_devices.c-649-\t\tnetdev_err(dev-\u003enet, \"Could not register MDIO bus (err %d)\\n\", ret);\ndrivers/net/usb/ax88179a_devices.c:650:\t\tmdiobus_free(data-\u003emdio);\ndrivers/net/usb/ax88179a_devices.c:651:\t\tdata-\u003emdio = NULL;\ndrivers/net/usb/ax88179a_devices.c-652-\t}\n--\ndrivers/net/usb/ax88179a_devices.c=883=static int ax88179a_rx_fixup(struct usbnet *dev, struct sk_buff *skb)\n--\ndrivers/net/usb/ax88179a_devices.c-902-\t * where:\ndrivers/net/usb/ax88179a_devices.c:903:\t * \u003cpacket N\u003e contains pkt_len data bytes and padding:\ndrivers/net/usb/ax88179a_devices.c-904-\t *\t\t2 bytes of IP alignment (optional, depends on AX_RX_CTL_IPE flag)\ndrivers/net/usb/ax88179a_devices.c:905:\t *\t\tpacket data received\ndrivers/net/usb/ax88179a_devices.c-906-\t *\t\toptional padding to 8-bytes boundary\n--\ndrivers/net/usb/ax88179a_devices.c-942-\t/* Get the first RX packet descriptor */\ndrivers/net/usb/ax88179a_devices.c:943:\tpkt_desc_ptr = (u64 *)(skb-\u003edata + hdr_off);\ndrivers/net/usb/ax88179a_devices.c-944-\n--\ndrivers/net/usb/ax88179a_devices.c-972-\t\tskb_put(ax_skb, pkt_len);\ndrivers/net/usb/ax88179a_devices.c:973:\t\tmemcpy(ax_skb-\u003edata, skb-\u003edata + (ax179_data-\u003eip_align ? AX179A_RX_HW_PAD : 0),\ndrivers/net/usb/ax88179a_devices.c-974-\t\t pkt_len);\n"
} |
| 9/2 | 2026/09/03 13:36 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 56776 output: 39 thoughts: 428 Thoughts: **Fuzzing Evaluation: A USB Ethernet Patch** Okay, so I'm looking at this `ax88179a_status` function within the `ax88179a_devices.c` file. Something immediately jumps out – the use of `data` without any apparent definition within the function itself. That's a red flag! Is this a compilation error that snuck through? Or perhaps a bug introduced in the patch? But wait, the triage process reminds me that these changes are *already* committed, right? So, no matter what, my task here isn't to fix the code, but to determine if this patch justifies fuzzing with syzkaller. Let's break this down systematically. The triage rules specify the goal: to uncover crashes, regressions, hidden bugs, or new assertions. That's the key. So, is this code even reachable? Absolutely. This patch introduces support for new USB ethernet adapters (AX88179A, AX88772D, AX88279) and updates PHY and phylink handling. USB network devices are *completely* reachable in a virtualized environment via USB emulation, raw gadget, or even syzkaller's own USB fuzzing capabilities. I see interactions with core USB net driver logic, packet fixup (rx_fixup, tx_fixup - complex packet splitting and parsing, ugh), phylink interaction, ethtool operations, vlan filtering, and so on. Plenty of opportunities for something to go wrong. Given the potential for interaction with complex core systems, I'm going to say this patch *definitely* warrants fuzzing. Therefore, `WorthFuzzing = true`. Now, let's look at what configuration options are needed for this code and what function symbols need to be in focus for syzkaller. I need to make sure I have the correct CONFIG options enabled and that syzkaller is targeting the relevant code paths. Time to go dig around in `drivers/net/usb/Kconfig` around `USB_NET_AX88179` to find out. |
| 10/2 | 2026/09/03 13:36 | tool | grepper |
0mArgs:{
"Expression": "config USB_NET_AX88179",
"PathPrefix": "drivers/net/usb/Kconfig"
}Results: {
"Output": "drivers/net/usb/Kconfig=166=config USB_NET_AX8817X\n--\ndrivers/net/usb/Kconfig-197-\ndrivers/net/usb/Kconfig:198:config USB_NET_AX88179\ndrivers/net/usb/Kconfig-199-\ttristate \"ASIX AX88179/179A/178A USB 3.0/2.0 to Gigabit Ethernet\"\n"
} |
| 11/2 | 2026/09/03 13:36 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 57820 output: 36 thoughts: 25 Thoughts: Here's a summary of my thought process, as requested: **Diving into the USB Networking Configuration** Alright, let's get down to brass tacks. I need to understand how the USB networking configuration is structured within the kernel. Time to dig into the `drivers/net/usb/Kconfig` file, specifically lines 190 through 220. I'm focusing on that section for a reason, likely a specific feature or subsystem I'm troubleshooting or extending. I anticipate this portion will detail the conditional compilation options, dependencies, and perhaps even some help text related to the various USB networking drivers. I'm particularly interested in how the options interact with each other. Is there a specific vendor I am working with? or a new protocol? Let's get reading! |
| 12/2 | 2026/09/03 13:36 | tool | read-file |
0mArgs:{
"File": "drivers/net/usb/Kconfig",
"FirstLine": 190,
"LineCount": 30
}Results: {
"Contents": " 190:\t\t * Sitecom LN-028\n 191:\t\t * Intellinet USB 2.0 Ethernet\n 192:\t\t * ST Lab USB 2.0 Ethernet\n 193:\t\t * TrendNet TU2-ET100\n 194:\t\n 195:\t\t This driver creates an interface named \"ethX\", where X depends on\n 196:\t\t what other networking devices you have in use.\n 197:\t\n 198:\tconfig USB_NET_AX88179\n 199:\t\ttristate \"ASIX AX88179/179A/178A USB 3.0/2.0 to Gigabit Ethernet\"\n 200:\t\tdepends on USB_USBNET\n 201:\t\tselect PHYLINK\n 202:\t\tselect AX88796B_PHY\n 203:\t\tselect CRC32\n 204:\t\tdefault y\n 205:\t\thelp\n 206:\t\t This option adds support for ASIX AX88179 based USB 3.0/2.0\n 207:\t\t to Gigabit Ethernet adapters.\n 208:\t\n 209:\t\t This driver should work with at least the following devices:\n 210:\t\t * ASIX AX88179\n 211:\t\t * ASIX AX88179A/B\n 212:\t\t * ASIX AX88279\n 213:\t\t * ASIX AX88772D/E\n 214:\t\t * ASIX AX88178A\n 215:\t\t * Sitcomm LN-032\n 216:\t\n 217:\t\t This driver creates an interface named \"ethX\", where X depends on\n 218:\t\t what other networking devices you have in use.\n 219:\t\n"
} |
| 13/2 | 2026/09/03 13:36 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 58543 output: 34 thoughts: 26 Thoughts: Here's my thought process, as if I were considering this myself: **Examining USB Networking Configuration Dependencies** Okay, so I'm diving into USB networking, specifically the `USB_USBNET` configuration option. I need to make sure I understand its dependencies thoroughly. I know the likely place to find those is the `Kconfig` file within the USB network driver directory, which is, of course, `drivers/net/usb/Kconfig`. I need to ensure that everything that *must* be enabled or considered for `USB_USBNET` to function correctly is accounted for. Gotta make sure there aren't any hidden gotchas in its build requirements that I might miss. Time to dig in and meticulously review that `Kconfig` file. |
| 14/2 | 2026/09/03 13:36 | tool | grepper |
0mArgs:{
"Expression": "config USB_USBNET",
"PathPrefix": "drivers/net/usb/Kconfig"
}Results: {
"Output": "drivers/net/usb/Kconfig=113=config USB_LAN78XX\n--\ndrivers/net/usb/Kconfig-131-\ndrivers/net/usb/Kconfig:132:config USB_USBNET\ndrivers/net/usb/Kconfig-133-\ttristate \"Multi-purpose USB Networking Framework\"\n"
} |
| 15/2 | 2026/09/03 13:36 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 58859 output: 38 thoughts: 26 Thoughts: Here's my summary, as though I'm thinking through this process: **Diving into the PHY Configuration** Okay, so I need to understand how this `AX88796B_PHY` driver is configured within the networking stack. My first instinct, and the standard practice, is to check the `Kconfig` file. That's where all the build-time configuration options live, so I'll need to look in `drivers/net/phy/Kconfig`. This should tell me: is this driver enabled by default? What dependencies does it have? Are there any specific features I can toggle on or off? What other PHYs might it conflict with? Essentially, the `Kconfig` file is the key to understanding how this particular PHY module fits into the broader networking ecosystem during the build process. It's the starting point for understanding its availability and potential customization. I'll get to work and dive into that file. |
| 16/2 | 2026/09/03 13:36 | tool | grepper |
0mArgs:{
"Expression": "config AX88796B_PHY",
"PathPrefix": "drivers/net/phy/Kconfig"
}Results: {
"Output": "drivers/net/phy/Kconfig=152=source \"drivers/net/phy/aquantia/Kconfig\"\ndrivers/net/phy/Kconfig-153-\ndrivers/net/phy/Kconfig:154:config AX88796B_PHY\ndrivers/net/phy/Kconfig-155-\ttristate \"Asix PHYs\"\n"
} |
| 17/2 | 2026/09/03 13:36 | llm | patch-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 59225 output: 295 thoughts: 895 Thoughts: **Fuzzing Target Assessment: USB Network Adapter (AX88179)** Okay, let's break this down. First, I need to confirm the configuration requirements for the AX88179 USB network adapter. My initial investigation shows it depends on `USB_NET_AX88179`, which in turn relies on `USB_USBNET`, `USB_NET_DRIVERS`, `NETDEVICES`, `USB_SUPPORT`, and `USB`. To enable this, I'll need to explicitly set `USB_NET_AX88179`, `USB_USBNET`, `AX88796B_PHY`, and `PHYLINK` in the kernel configuration. Next, I need to identify the key symbols in the relevant code to determine the most effective areas for fuzzing. I've looked at the functions within the `ax88179a_devices.c`, `ax88179_lib.c` and `ax88796b.c` files. I have identified a list of key functions based on their specificity and relevance to the network interface: `ax88179a_rx_fixup`, `ax88179a_tx_fixup`, `ax88179a_bind`, `ax88179a_reset`, `ax88179a_set_features`, `ax88179a_mac_link_up`, `asix_ax88279_read_status`, `asix_ax88279_config_aneg`, `asix_ax88772D_get_features` and `phylink_mac_interrupt`. Now for the crucial part: assessing the fuzzing potential. The combination of these symbols, specifically `rx_fixup` and `tx_fixup`, along with the `phylink` helper, points directly to packet handling, which is perfect for fuzzing. We have all the right drivers in place for fuzzing to be successful. Considering this driver touches USB networking logic, packet parsing, the PHY driver, and the phylink helper, I believe it's easily reachable within standard virtualized environments. I can use QEMU with USB gadget or USB host emulation. Given all this, it's clear this is a *definitive* "WorthFuzzing" candidate. Therefore, I can now confidently prepare the call to `set-results`. |
| 18/2 | 2026/09/03 13:36 | tool | set-results |
0mArgs:{
"EnableConfigs": [
"USB_NET_AX88179",
"USB_USBNET",
"AX88796B_PHY",
"PHYLINK"
],
"FocusSymbols": [
"ax88179a_rx_fixup",
"ax88179a_tx_fixup",
"ax88179a_bind",
"ax88179a_reset",
"ax88179a_set_features",
"ax88179a_mac_link_up",
"asix_ax88279_read_status",
"asix_ax88279_config_aneg",
"asix_ax88772D_get_features",
"phylink_mac_interrupt"
],
"Reasoning": "The patch adds support for new ASIX USB Ethernet devices (AX88179A, AX88772D, AX88279) along with PHY drivers, phylink integration, packet handling (rx_fixup / tx_fixup), and VLAN / feature configuration. This executable kernel code is fully reachable in standard QEMU environments via USB emulation and gadget fuzzing.",
"WorthFuzzing": true
}Results: {
"EnableConfigs": [
"USB_NET_AX88179",
"USB_USBNET",
"AX88796B_PHY",
"PHYLINK"
],
"FocusSymbols": [
"ax88179a_rx_fixup",
"ax88179a_tx_fixup",
"ax88179a_bind",
"ax88179a_reset",
"ax88179a_set_features",
"ax88179a_mac_link_up",
"asix_ax88279_read_status",
"asix_ax88279_config_aneg",
"asix_ax88772D_get_features",
"phylink_mac_interrupt"
],
"Reasoning": "The patch adds support for new ASIX USB Ethernet devices (AX88179A, AX88772D, AX88279) along with PHY drivers, phylink integration, packet handling (rx_fixup / tx_fixup), and VLAN / feature configuration. This executable kernel code is fully reachable in standard QEMU environments via USB emulation and gadget fuzzing.",
"WorthFuzzing": true
} |
| 19/1 | 2026/09/03 13:36 | action | If |
0mArgs:{
"WorthFuzzing": true
}Results: null |
| 20/2 | 2026/09/03 13:36 | agent | kmsan-evaluator |
0mModel:core Args: null Results: {
"KMSANReasoning": "The patch series adds support for ASIX AX88179A, AX88772D, and AX88279 USB Ethernet adapters and their internal PHYs, refactoring common functionality into a shared library.\n\nA KMSAN fuzzing session is not needed for the following reasons:\n1. All dynamically allocated kernel structures and buffers (such as `struct ax88179_data` via `kzalloc`/`kzalloc_obj`, and EEPROM query buffers via `kzalloc`) are explicitly zero-initialized upon allocation.\n2. In the packet transmission path (`ax88179a_tx_fixup`), SKB padding is explicitly cleared with `skb_put_zero`, avoiding info-leaks of kernel stack/heap memory onto the wire.\n3. In the packet reception path (`ax88179a_rx_fixup`), strict length, descriptor offset, and packet count validations prevent out-of-bounds reads and ensure only valid received payload bytes are copied to returned SKBs.\n4. User-visible data paths (ethtool ops, phylink callbacks) operate on fully initialized structures or delegate to standard kernel helpers.\n5. Any potential memory-safety risks in the changes (e.g. buffer parsing or pointer handling) fall under spatial safety or life-cycle management, which are covered by standard KASAN.",
"NeedsKMSAN": false
}Instruction: You are an expert Linux kernel security engineer specializing in kernel memory
error detectors (KASAN and KMSAN). Your job is to review the provided patch series and
determine if the code changes justify spawning a dedicated KMSAN (KernelMemorySanitizer)
fuzzing session in addition to standard KASAN fuzzing.
CRITICAL DISTINCTION BETWEEN KASAN AND KMSAN:
- Standard KASAN kernel builds (upstream-apparmor-kasan.config) already enable
a comprehensive suite of debugging tools and sanitizers, including KASAN
(out-of-bounds accesses, use-after-free, double free, invalid free), LOCKDEP
(locking bugs and deadlocks), UB-sanitizers, and memory corruption checks.
- KMSAN (KernelMemorySanitizer) detects reads of UNINITIALIZED memory (stack, heap,
or page allocations) and kernel-to-user memory info-leaks.
Rule: THERE IS NO SENSE IN RUNNING A KMSAN SESSION IF A BUG CAN BE CAUGHT BY KASAN,
LOCKDEP, OR OTHER STANDARD BUG DETECTORS.
A dedicated KMSAN fuzzing session incurs significant resource costs. You must ONLY
set NeedsKMSAN=true if the code changes introduce or expose UNINITIALIZED MEMORY risks
that are detected ONLY by KMSAN.
Look holistically at the patch series and surrounding code. Even if no direct
uninitialized field accesses or new buffer allocations are added in the diff itself,
a patch may alter control flow, bounds checking, or data length calculations in ways
that change how the rest of the code operates on existing buffers (e.g. allowing
uninitialized stack/heap memory to be read, copied to user space, or used in control
flow). Do not hesitate to use your code access tools to inspect the surrounding code,
called functions, and callers.
Set NeedsKMSAN=true ONLY IF the patch introduces or modifies:
1. Kernel structures sent to user space (via copy_to_user, put_user, netlink skb
attributes, ioctl output arguments, socket options, or BPF buffers) where fields
or structure padding might not be fully initialized/zeroed.
2. Conditional logic or branching that depends on potentially uninitialized variables
or struct fields.
3. Allocation or initialization of complex data structures where uninitialized fields
could be read later in reachable code paths.
4. Bounds checks, lengths, or logic in a way that allows surrounding code to access
uninitialized bytes of existing buffers.
Set NeedsKMSAN=false IF:
- The code changes primarily risk out-of-bounds access, array overflows, NULL pointer
dereferences, locking deadlocks, or use-after-free bugs (these are already caught
by KASAN, LOCKDEP, or standard bug detectors).
- All stack/heap structures touched or introduced by the patch are fully zeroed
or initialized (e.g. using = {0}, memset, kzalloc) before being read or copied.
- The patch does not introduce any risk of uninitialized memory usage or info-leaks.
Use your code access tools to inspect the surrounding code if necessary, then provide
detailed KMSANReasoning contrasting KASAN vs KMSAN applicability for this patch.
Prefer calling several tools at the same time to save round-trips.
Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.
Prompt: Target architecture: amd64
For your convenience, here is the diff of the changes:
commit 8c372c361593da59a5e99b946b127757729ad34e
Author: syz-cluster <triage@syzkaller.com>
Date: Thu Sep 3 13:35:40 2026 +0000
syz-cluster: applied patch under review
diff --git a/MAINTAINERS b/MAINTAINERS
index 0b42e898f4d8e..442e8ea3ca04e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4020,6 +4020,12 @@ S: Maintained
F: Documentation/devicetree/bindings/net/asix,ax88796c.yaml
F: drivers/net/ethernet/asix/ax88796c_*
+ASIX AX88179 USB ETHERNET DRIVER
+M: Birger Koblitz <mail@birger-koblitz.de>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/usb/ax88179*
+
ASIX PHY DRIVER [RUST]
M: FUJITA Tomonori <fujita.tomonori@gmail.com>
R: Trevor Gross <tmgross@umich.edu>
diff --git a/drivers/net/phy/ax88796b.c b/drivers/net/phy/ax88796b.c
index f20ddf6491499..62f6beb25f41e 100644
--- a/drivers/net/phy/ax88796b.c
+++ b/drivers/net/phy/ax88796b.c
@@ -13,6 +13,19 @@
#define PHY_ID_ASIX_AX88772A 0x003b1861
#define PHY_ID_ASIX_AX88772C 0x003b1881
#define PHY_ID_ASIX_AX88796B 0x003b1841
+#define PHY_ID_ASIX_AX88772D 0x003b772d
+#define PHY_ID_ASIX_AX88179A 0x003b179a
+#define PHY_ID_ASIX_AX88279 0x003b2790
+
+#define AX_ADVERTISE_2500 0x1000
+
+/* MII Vendor registers */
+#define AX_CTRL_STATUS 0x1d
+#define AX_CTRL_STATUS_SPEED_MASK 0x0c
+#define AX_CTRL_STATUS_SPEED_10 0x0
+#define AX_CTRL_STATUS_SPEED_100 0x4
+#define AX_CTRL_STATUS_SPEED_1000 0x8
+#define AX_CTRL_STATUS_SPEED_2500 0xc
MODULE_DESCRIPTION("Asix PHY driver");
MODULE_AUTHOR("Michael Schmitz <schmitzmic@gmail.com>");
@@ -83,6 +96,103 @@ static int asix_ax88772a_read_status(struct phy_device *phydev)
return 0;
}
+static int asix_ax88279_read_status(struct phy_device *phydev)
+{
+ int ret, val;
+
+ ret = genphy_read_status(phydev);
+ if (ret)
+ return ret;
+
+ /* Read actual speed from vendor register */
+ val = phy_read(phydev, AX_CTRL_STATUS);
+ switch (val & AX_CTRL_STATUS_SPEED_MASK) {
+ case AX_CTRL_STATUS_SPEED_2500:
+ phydev->speed = SPEED_2500;
+ break;
+ case AX_CTRL_STATUS_SPEED_1000:
+ phydev->speed = SPEED_1000;
+ break;
+ case AX_CTRL_STATUS_SPEED_100:
+ phydev->speed = SPEED_100;
+ break;
+ case AX_CTRL_STATUS_SPEED_10:
+ phydev->speed = SPEED_10;
+ }
+
+ /* MDIO_AN_10GBT_STAT_LP2_5G is broken, but we can deduce that
+ * the link-partner advertised 2500M if remotely AN succceded
+ * for link speed > 1000M and we locally have a link speed of
+ * 2500M
+ */
+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
+ if (val >= 0 && val & MDIO_AN_10GBT_STAT_REMOK) {
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ phydev->lp_advertising,
+ phydev->speed == SPEED_2500);
+ }
+ /* Only supports full duplex */
+ phydev->duplex = DUPLEX_FULL;
+
+ /* PHY switches interface between 2.5GBit and slower modes */
+ if (phydev->speed == SPEED_2500)
+ phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
+ else
+ phydev->interface = PHY_INTERFACE_MODE_SGMII;
+
+ return 0;
+}
+
+static int asix_ax88279_config_aneg(struct phy_device *phydev)
+{
+ bool adv_2500;
+ int ret;
+
+ if (phydev->autoneg == AUTONEG_DISABLE) {
+ phydev_warn(phydev, "Disabling autoneg is not supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = genphy_config_aneg(phydev);
+
+ if (ret < 0)
+ return ret;
+
+ adv_2500 = linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising);
+ ret = phy_modify(phydev, MII_ADVERTISE, AX_ADVERTISE_2500,
+ adv_2500 ? AX_ADVERTISE_2500 : 0);
+
+ return ret;
+}
+
+static int asix_ax88279_get_features(struct phy_device *phydev)
+{
+ int ret;
+
+ /* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */
+ phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
+
+ linkmode_set_bit_array(phy_basic_ports_array, ARRAY_SIZE(phy_basic_ports_array),
+ phydev->supported);
+
+ ret = genphy_c45_pma_read_abilities(phydev);
+ if (ret < 0)
+ return ret;
+
+ /* AX88279 does not support reported 100baseT-half duplex mode */
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, phydev->supported);
+
+ return 0;
+}
+
+static int asix_ax88279_config_init(struct phy_device *phydev)
+{
+ __set_bit(PHY_INTERFACE_MODE_2500BASEX, phydev->possible_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_SGMII, phydev->possible_interfaces);
+
+ return 0;
+}
+
static void asix_ax88772a_link_change_notify(struct phy_device *phydev)
{
/* Reset PHY, otherwise MII_LPA will provide outdated information.
@@ -94,6 +204,25 @@ static void asix_ax88772a_link_change_notify(struct phy_device *phydev)
}
}
+static int asix_ax88772D_get_features(struct phy_device *phydev)
+{
+ int ret;
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};
+
+ /* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */
+ phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
+
+ ret = genphy_read_abilities(phydev);
+ if (ret < 0)
+ return ret;
+
+ /* AX88772D does not support reported 1000baseT mode */
+ linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, mask);
+ linkmode_andnot(phydev->supported, phydev->supported, mask);
+
+ return 0;
+}
+
static struct phy_driver asix_driver[] = {
{
PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A),
@@ -111,6 +240,35 @@ static struct phy_driver asix_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.soft_reset = asix_soft_reset,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D),
+ .name = "Asix Electronics AX88772D",
+ .flags = PHY_IS_INTERNAL,
+ .get_features = asix_ax88772D_get_features,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A),
+ .name = "Asix Electronics AX88179A",
+ .flags = PHY_IS_INTERNAL,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+}, {
+ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279),
+ .name = "Asix Electronics AX88279",
+ .flags = PHY_IS_INTERNAL | PHY_BROKEN_FORCED,
+ .get_features = asix_ax88279_get_features,
+ .read_status = asix_ax88279_read_status,
+ .config_aneg = asix_ax88279_config_aneg,
+ .config_init = asix_ax88279_config_init,
+ .read_mmd = genphy_read_mmd_c45,
+ .write_mmd = genphy_write_mmd_c45,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
}, {
PHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B),
.name = "Asix Electronics AX88796B",
@@ -124,6 +282,9 @@ static const struct mdio_device_id __maybe_unused asix_tbl[] = {
{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772A) },
{ PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772C) },
{ PHY_ID_MATCH_MODEL(PHY_ID_ASIX_AX88796B) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88772D) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88179A) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_ASIX_AX88279) },
{ }
};
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index fce9bc7be3304..b83f938fe7c3b 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1190,6 +1190,10 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
duplex != DUPLEX_FULL)))
return -EINVAL;
+ if (autoneg == AUTONEG_DISABLE &&
+ (phydev->drv->flags & PHY_BROKEN_FORCED))
+ return -EOPNOTSUPP;
+
mutex_lock(&phydev->lock);
phydev->autoneg = autoneg;
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 3ec3bb4391095..96ed13458e9f3 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1612,6 +1612,22 @@ static bool phylink_link_is_up(struct phylink *pl)
return pl->netdev ? netif_carrier_ok(pl->netdev) : pl->old_link_state;
}
+/**
+ * phylink_mac_interrupt() - wrapper for phy_mac_interrupt()
+ * @pl: a pointer to a &struct phylink returned from phylink_create()
+ *
+ * Passes a link-change interrupt received by the MAC to phylib.
+ */
+void phylink_mac_interrupt(struct phylink *pl)
+{
+ struct phy_device *phy;
+
+ phy = pl->phydev;
+ if (phy)
+ phy_mac_interrupt(phy);
+}
+EXPORT_SYMBOL_GPL(phylink_mac_interrupt);
+
static void phylink_resolve(struct work_struct *w)
{
struct phylink *pl = container_of(w, struct phylink, resolve);
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 52a5c0922c79f..4158455a2da76 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -195,11 +195,12 @@ config USB_NET_AX8817X
This driver creates an interface named "ethX", where X depends on
what other networking devices you have in use.
-config USB_NET_AX88179_178A
- tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
+config USB_NET_AX88179
+ tristate "ASIX AX88179/179A/178A USB 3.0/2.0 to Gigabit Ethernet"
depends on USB_USBNET
+ select PHYLINK
+ select AX88796B_PHY
select CRC32
- select PHYLIB
default y
help
This option adds support for ASIX AX88179 based USB 3.0/2.0
@@ -207,6 +208,9 @@ config USB_NET_AX88179_178A
This driver should work with at least the following devices:
* ASIX AX88179
+ * ASIX AX88179A/B
+ * ASIX AX88279
+ * ASIX AX88772D/E
* ASIX AX88178A
* Sitcomm LN-032
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 4964f7b326fbc..4026f19ecb826 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -12,7 +12,8 @@ obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_LAN78XX) += lan78xx.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o
asix-y := asix_devices.o asix_common.o ax88172a.o
-obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o
+obj-$(CONFIG_USB_NET_AX88179) += ax88179.o
+ax88179-y := ax88179_178a.o ax88179a_devices.o ax88179_lib.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 81d8412ce8e2f..55564aa0ca63f 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -8,179 +8,12 @@
#include <linux/module.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
-#include <linux/usb.h>
-#include <linux/crc32.h>
-#include <linux/usb/usbnet.h>
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
-
-#define AX88179_PHY_ID 0x03
-#define AX_EEPROM_LEN 0x100
-#define AX88179_EEPROM_MAGIC 0x17900b95
-#define AX_MCAST_FLTSIZE 8
-#define AX_MAX_MCAST 64
-#define AX_INT_PPLS_LINK ((u32)BIT(16))
-#define AX_RXHDR_L4_TYPE_MASK 0x1c
-#define AX_RXHDR_L4_TYPE_UDP 4
-#define AX_RXHDR_L4_TYPE_TCP 16
-#define AX_RXHDR_L3CSUM_ERR 2
-#define AX_RXHDR_L4CSUM_ERR 1
-#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
-#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
-#define AX_ACCESS_MAC 0x01
-#define AX_ACCESS_PHY 0x02
-#define AX_ACCESS_EEPROM 0x04
-#define AX_ACCESS_EFUS 0x05
-#define AX_RELOAD_EEPROM_EFUSE 0x06
-#define AX_PAUSE_WATERLVL_HIGH 0x54
-#define AX_PAUSE_WATERLVL_LOW 0x55
-
-#define PHYSICAL_LINK_STATUS 0x02
- #define AX_USB_SS 0x04
- #define AX_USB_HS 0x02
-
-#define GENERAL_STATUS 0x03
-/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
- #define AX_SECLD 0x04
-
-#define AX_SROM_ADDR 0x07
-#define AX_SROM_CMD 0x0a
- #define EEP_RD 0x04
- #define EEP_BUSY 0x10
-
-#define AX_SROM_DATA_LOW 0x08
-#define AX_SROM_DATA_HIGH 0x09
-
-#define AX_RX_CTL 0x0b
- #define AX_RX_CTL_DROPCRCERR 0x0100
- #define AX_RX_CTL_IPE 0x0200
- #define AX_RX_CTL_START 0x0080
- #define AX_RX_CTL_AP 0x0020
- #define AX_RX_CTL_AM 0x0010
- #define AX_RX_CTL_AB 0x0008
- #define AX_RX_CTL_AMALL 0x0002
- #define AX_RX_CTL_PRO 0x0001
- #define AX_RX_CTL_STOP 0x0000
-
-#define AX_NODE_ID 0x10
-#define AX_MULFLTARY 0x16
-
-#define AX_MEDIUM_STATUS_MODE 0x22
- #define AX_MEDIUM_GIGAMODE 0x01
- #define AX_MEDIUM_FULL_DUPLEX 0x02
- #define AX_MEDIUM_EN_125MHZ 0x08
- #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
- #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
- #define AX_MEDIUM_RECEIVE_EN 0x100
- #define AX_MEDIUM_PS 0x200
- #define AX_MEDIUM_JUMBO_EN 0x8040
-
-#define AX_MONITOR_MOD 0x24
- #define AX_MONITOR_MODE_RWLC 0x02
- #define AX_MONITOR_MODE_RWMP 0x04
- #define AX_MONITOR_MODE_PMEPOL 0x20
- #define AX_MONITOR_MODE_PMETYPE 0x40
-
-#define AX_GPIO_CTRL 0x25
- #define AX_GPIO_CTRL_GPIO3EN 0x80
- #define AX_GPIO_CTRL_GPIO2EN 0x40
- #define AX_GPIO_CTRL_GPIO1EN 0x20
-
-#define AX_PHYPWR_RSTCTL 0x26
- #define AX_PHYPWR_RSTCTL_BZ 0x0010
- #define AX_PHYPWR_RSTCTL_IPRL 0x0020
- #define AX_PHYPWR_RSTCTL_AT 0x1000
-
-#define AX_RX_BULKIN_QCTRL 0x2e
-#define AX_CLK_SELECT 0x33
- #define AX_CLK_SELECT_BCS 0x01
- #define AX_CLK_SELECT_ACS 0x02
- #define AX_CLK_SELECT_ULR 0x08
-
-#define AX_RXCOE_CTL 0x34
- #define AX_RXCOE_IP 0x01
- #define AX_RXCOE_TCP 0x02
- #define AX_RXCOE_UDP 0x04
- #define AX_RXCOE_TCPV6 0x20
- #define AX_RXCOE_UDPV6 0x40
-
-#define AX_TXCOE_CTL 0x35
- #define AX_TXCOE_IP 0x01
- #define AX_TXCOE_TCP 0x02
- #define AX_TXCOE_UDP 0x04
- #define AX_TXCOE_TCPV6 0x20
- #define AX_TXCOE_UDPV6 0x40
-
-#define AX_LEDCTRL 0x73
-
-#define GMII_PHY_PHYSR 0x11
- #define GMII_PHY_PHYSR_SMASK 0xc000
- #define GMII_PHY_PHYSR_GIGA 0x8000
- #define GMII_PHY_PHYSR_100 0x4000
- #define GMII_PHY_PHYSR_FULL 0x2000
- #define GMII_PHY_PHYSR_LINK 0x400
-
-#define GMII_LED_ACT 0x1a
- #define GMII_LED_ACTIVE_MASK 0xff8f
- #define GMII_LED0_ACTIVE BIT(4)
- #define GMII_LED1_ACTIVE BIT(5)
- #define GMII_LED2_ACTIVE BIT(6)
-
-#define GMII_LED_LINK 0x1c
- #define GMII_LED_LINK_MASK 0xf888
- #define GMII_LED0_LINK_10 BIT(0)
- #define GMII_LED0_LINK_100 BIT(1)
- #define GMII_LED0_LINK_1000 BIT(2)
- #define GMII_LED1_LINK_10 BIT(4)
- #define GMII_LED1_LINK_100 BIT(5)
- #define GMII_LED1_LINK_1000 BIT(6)
- #define GMII_LED2_LINK_10 BIT(8)
- #define GMII_LED2_LINK_100 BIT(9)
- #define GMII_LED2_LINK_1000 BIT(10)
- #define LED0_ACTIVE BIT(0)
- #define LED0_LINK_10 BIT(1)
- #define LED0_LINK_100 BIT(2)
- #define LED0_LINK_1000 BIT(3)
- #define LED0_FD BIT(4)
- #define LED0_USB3_MASK 0x001f
- #define LED1_ACTIVE BIT(5)
- #define LED1_LINK_10 BIT(6)
- #define LED1_LINK_100 BIT(7)
- #define LED1_LINK_1000 BIT(8)
- #define LED1_FD BIT(9)
- #define LED1_USB3_MASK 0x03e0
- #define LED2_ACTIVE BIT(10)
- #define LED2_LINK_1000 BIT(13)
- #define LED2_LINK_100 BIT(12)
- #define LED2_LINK_10 BIT(11)
- #define LED2_FD BIT(14)
- #define LED_VALID BIT(15)
- #define LED2_USB3_MASK 0x7c00
-
-#define GMII_PHYPAGE 0x1e
-#define GMII_PHY_PAGE_SELECT 0x1f
- #define GMII_PHY_PGSEL_EXT 0x0007
- #define GMII_PHY_PGSEL_PAGE0 0x0000
- #define GMII_PHY_PGSEL_PAGE3 0x0003
- #define GMII_PHY_PGSEL_PAGE5 0x0005
+#include "ax88179_lib.h"
static int ax88179_reset(struct usbnet *dev);
-struct ax88179_data {
- u8 eee_enabled;
- u8 eee_active;
- u16 rxctl;
- u8 in_pm;
- u32 wol_supported;
- u32 wolopts;
- u8 disconnecting;
-};
-
-struct ax88179_int_data {
- __le32 intdata1;
- __le32 intdata2;
-};
-
static const struct {
unsigned char ctrl, timer_l, timer_h, size, ifg;
} AX88179_BULKIN_SIZE[] = {
@@ -190,165 +23,6 @@ static const struct {
{7, 0xcc, 0x4c, 0x18, 8},
};
-static void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)
-{
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- ax179_data->in_pm = pm_mode;
-}
-
-static int ax88179_in_pm(struct usbnet *dev)
-{
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- return ax179_data->in_pm;
-}
-
-static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- int ret;
- int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- BUG_ON(!dev);
-
- if (!ax88179_in_pm(dev))
- fn = usbnet_read_cmd;
- else
- fn = usbnet_read_cmd_nopm;
-
- ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, index, data, size);
-
- if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
- netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
- index, ret);
-
- return ret;
-}
-
-static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, const void *data)
-{
- int ret;
- int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
- struct ax88179_data *ax179_data = dev->driver_priv;
-
- BUG_ON(!dev);
-
- if (!ax88179_in_pm(dev))
- fn = usbnet_write_cmd;
- else
- fn = usbnet_write_cmd_nopm;
-
- ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, index, data, size);
-
- if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
- netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
- index, ret);
-
- return ret;
-}
-
-static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
- u16 index, u16 size, void *data)
-{
- u16 buf;
-
- if (2 == size) {
- buf = *((u16 *)data);
- cpu_to_le16s(&buf);
- usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
- USB_RECIP_DEVICE, value, index, &buf,
- size);
- } else {
- usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
- USB_RECIP_DEVICE, value, index, data,
- size);
- }
-}
-
-static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- int ret;
-
- if (2 == size) {
- u16 buf = 0;
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
- le16_to_cpus(&buf);
- *((u16 *)data) = buf;
- } else if (4 == size) {
- u32 buf = 0;
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
- le32_to_cpus(&buf);
- *((u32 *)data) = buf;
- } else {
- ret = __ax88179_read_cmd(dev, cmd, value, index, size, data);
- }
-
- return ret;
-}
-
-static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, const void *data)
-{
- int ret;
-
- if (2 == size) {
- u16 buf;
- buf = *((u16 *)data);
- cpu_to_le16s(&buf);
- ret = __ax88179_write_cmd(dev, cmd, value, index,
- size, &buf);
- } else {
- ret = __ax88179_write_cmd(dev, cmd, value, index,
- size, data);
- }
-
- return ret;
-}
-
-static void ax88179_status(struct usbnet *dev, struct urb *urb)
-{
- struct ax88179_int_data *event;
- u32 link;
-
- if (urb->actual_length < 8)
- return;
-
- event = urb->transfer_buffer;
- le32_to_cpus((void *)&event->intdata1);
-
- link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
-
- if (netif_carrier_ok(dev->net) != link) {
- usbnet_link_change(dev, link, 1);
- if (!link)
- netdev_info(dev->net, "ax88179 - Link status is: 0\n");
- }
-}
-
-static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res;
-
- ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
- return res;
-}
-
-static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
- int val)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res = (u16) val;
-
- ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
-}
-
static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
u16 devad)
{
@@ -510,146 +184,11 @@ static void ax88179_disconnect(struct usb_interface *intf)
usbnet_disconnect(intf);
}
-static void
-ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *priv = dev->driver_priv;
-
- wolinfo->supported = priv->wol_supported;
- wolinfo->wolopts = priv->wolopts;
-}
-
-static int
-ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *priv = dev->driver_priv;
-
- if (wolinfo->wolopts & ~(priv->wol_supported))
- return -EINVAL;
-
- priv->wolopts = wolinfo->wolopts;
-
- return 0;
-}
-
static int ax88179_get_eeprom_len(struct net_device *net)
{
return AX_EEPROM_LEN;
}
-static int
-ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
- u8 *data)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 *eeprom_buff;
- int first_word, last_word;
- int i, ret;
-
- if (eeprom->len == 0)
- return -EINVAL;
-
- eeprom->magic = AX88179_EEPROM_MAGIC;
-
- first_word = eeprom->offset >> 1;
- last_word = (eeprom->offset + eeprom->len - 1) >> 1;
- eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
- GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- /* ax88179/178A returns 2 bytes from eeprom on read */
- for (i = first_word; i <= last_word; i++) {
- ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
- &eeprom_buff[i - first_word]);
- if (ret < 0) {
- kfree(eeprom_buff);
- return -EIO;
- }
- }
-
- memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
- kfree(eeprom_buff);
- return 0;
-}
-
-static int
-ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
- u8 *data)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 *eeprom_buff;
- int first_word;
- int last_word;
- int ret;
- int i;
-
- netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
- eeprom->len, eeprom->offset, eeprom->magic);
-
- if (eeprom->len == 0)
- return -EINVAL;
-
- if (eeprom->magic != AX88179_EEPROM_MAGIC)
- return -EINVAL;
-
- first_word = eeprom->offset >> 1;
- last_word = (eeprom->offset + eeprom->len - 1) >> 1;
-
- eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
- GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- /* align data to 16 bit boundaries, read the missing data from
- the EEPROM */
- if (eeprom->offset & 1) {
- ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
- &eeprom_buff[0]);
- if (ret < 0) {
- netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
- goto free;
- }
- }
-
- if ((eeprom->offset + eeprom->len) & 1) {
- ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
- &eeprom_buff[last_word - first_word]);
- if (ret < 0) {
- netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
- goto free;
- }
- }
-
- memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
-
- for (i = first_word; i <= last_word; i++) {
- netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
- i, eeprom_buff[i - first_word]);
- ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
- &eeprom_buff[i - first_word]);
- if (ret < 0) {
- netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
- goto free;
- }
- msleep(20);
- }
-
- /* reload EEPROM data */
- ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
- if (ret < 0) {
- netdev_err(net, "Failed to reload EEPROM data\n");
- goto free;
- }
-
- ret = 0;
-free:
- kfree(eeprom_buff);
- return ret;
-}
-
static int ax88179_get_link_ksettings(struct net_device *net,
struct ethtool_link_ksettings *cmd)
{
@@ -864,125 +403,6 @@ static const struct ethtool_ops ax88179_ethtool_ops = {
.get_ts_info = ethtool_op_get_ts_info,
};
-static void ax88179_set_multicast(struct net_device *net)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *data = dev->driver_priv;
- u8 *m_filter = ((u8 *)dev->data);
-
- data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
-
- if (net->flags & IFF_PROMISC) {
- data->rxctl |= AX_RX_CTL_PRO;
- } else if (net->flags & IFF_ALLMULTI ||
- netdev_mc_count(net) > AX_MAX_MCAST) {
- data->rxctl |= AX_RX_CTL_AMALL;
- } else if (netdev_mc_empty(net)) {
- /* just broadcast and directed */
- } else {
- /* We use dev->data for our 8 byte filter buffer
- * to avoid allocating memory that is tricky to free later
- */
- u32 crc_bits;
- struct netdev_hw_addr *ha;
-
- memset(m_filter, 0, AX_MCAST_FLTSIZE);
-
- netdev_for_each_mc_addr(ha, net) {
- crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
- *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
- }
-
- ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
- AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
- m_filter);
-
- data->rxctl |= AX_RX_CTL_AM;
- }
-
- ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
- 2, 2, &data->rxctl);
-}
-
-static int
-ax88179_set_features(struct net_device *net, netdev_features_t features)
-{
- u8 tmp;
- struct usbnet *dev = netdev_priv(net);
- netdev_features_t changed = net->features ^ features;
-
- if (changed & NETIF_F_IP_CSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- }
-
- if (changed & NETIF_F_IPV6_CSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
- }
-
- if (changed & NETIF_F_RXCSUM) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
- 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);
- }
-
- return 0;
-}
-
-static int ax88179_change_mtu(struct net_device *net, int new_mtu)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 tmp16;
-
- WRITE_ONCE(net->mtu, new_mtu);
- dev->hard_mtu = net->mtu + net->hard_header_len;
-
- if (net->mtu > 1500) {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- tmp16 |= AX_MEDIUM_JUMBO_EN;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- } else {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- tmp16 &= ~AX_MEDIUM_JUMBO_EN;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
- 2, 2, &tmp16);
- }
-
- /* max qlen depend on hard_mtu and rx_urb_size */
- usbnet_update_max_qlen(dev);
-
- return 0;
-}
-
-static int ax88179_set_mac_addr(struct net_device *net, void *p)
-{
- struct usbnet *dev = netdev_priv(net);
- struct sockaddr *addr = p;
- int ret;
-
- if (netif_running(net))
- return -EBUSY;
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- eth_hw_addr_set(net, addr->sa_data);
-
- /* Set the MAC address */
- ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
- ETH_ALEN, net->dev_addr);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
static const struct net_device_ops ax88179_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
@@ -1249,35 +669,6 @@ static int ax88179_led_setting(struct usbnet *dev)
return 0;
}
-static void ax88179_get_mac_addr(struct usbnet *dev)
-{
- u8 mac[ETH_ALEN];
-
- memset(mac, 0, sizeof(mac));
-
- /* Maybe the boot loader passed the MAC address via device tree */
- if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
- netif_dbg(dev, ifup, dev->net,
- "MAC address read from device tree");
- } else {
- ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
- ETH_ALEN, mac);
- netif_dbg(dev, ifup, dev->net,
- "MAC address read from ASIX chip");
- }
-
- if (is_valid_ether_addr(mac)) {
- eth_hw_addr_set(dev->net, mac);
- if (!is_local_ether_addr(mac))
- dev->net->addr_assign_type = NET_ADDR_PERM;
- } else {
- netdev_info(dev->net, "invalid MAC address, using random\n");
- }
-
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
- dev->net->dev_addr);
-}
-
static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
{
struct ax88179_data *ax179_data;
@@ -1293,6 +684,22 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
dev->driver_priv = ax179_data;
+ ax179_data->resume = ax88179_resume;
+ ax179_data->suspend = ax88179_suspend;
+
+ ret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,
+ 1, 1, &ax179_data->chip_version);
+ if (ret < 0)
+ goto err_nodev;
+
+ ax179_data->chip_version = (ax179_data->chip_version & 0xf0) >> 4;
+ ax179_data->is_ax88772d = 0;
+ ax179_data->ip_align = 1;
+ ax179_data->eeprom_read_cmd = AX_ACCESS_EEPROM;
+ ax179_data->eeprom_write_cmd = AX_ACCESS_EEPROM;
+ ax179_data->eeprom_block = 2;
+ ax179_data->eeprom_wen = 0;
+
dev->net->netdev_ops = &ax88179_netdev_ops;
dev->net->ethtool_ops = &ax88179_ethtool_ops;
dev->net->needed_headroom = 8;
@@ -1317,6 +724,12 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
ax88179_reset(dev);
return 0;
+
+err_nodev:
+ kfree(ax179_data);
+ ax179_data = NULL;
+
+ return ret;
}
static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
@@ -1619,11 +1032,10 @@ static int ax88179_reset(struct usbnet *dev)
dev->rx_urb_size = 1024 * 20;
*tmp = 0x34;
- ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
+ 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_HIGH,
- 1, 1, tmp);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
/* Enable checksum offload */
*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
@@ -1880,6 +1292,18 @@ static const struct driver_info at_umc2000sp_info = {
static const struct usb_device_id products[] = {
{
+ /* ASIX AX88179A USB 3.2 1000Mbit Ethernet */
+ USB_DEVICE_VER(0x0b95, 0x1790, 0, 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 2500Mbit Ethernet */
+ USB_DEVICE_VER(0x0b95, 0x1790, 0, 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,
@@ -1936,19 +1360,19 @@ static const struct usb_device_id products[] = {
};
MODULE_DEVICE_TABLE(usb, products);
-static struct usb_driver ax88179_178a_driver = {
- .name = "ax88179_178a",
+static struct usb_driver ax88179_driver = {
+ .name = "ax88179",
.id_table = products,
.probe = usbnet_probe,
- .suspend = ax88179_suspend,
- .resume = ax88179_resume,
- .reset_resume = ax88179_resume,
+ .suspend = ax88179_suspend_wrapper,
+ .resume = ax88179_resume_wrapper,
+ .reset_resume = ax88179_resume_wrapper,
.disconnect = ax88179_disconnect,
.supports_autosuspend = 1,
.disable_hub_initiated_lpm = 1,
};
-module_usb_driver(ax88179_178a_driver);
+module_usb_driver(ax88179_driver);
-MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
+MODULE_DESCRIPTION("ASIX AX88179/179A/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/ax88179_lib.c b/drivers/net/usb/ax88179_lib.c
new file mode 100644
index 0000000000000..db77b7d4539ec
--- /dev/null
+++ b/drivers/net/usb/ax88179_lib.c
@@ -0,0 +1,506 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
+ *
+ * Copyright (C) 2011-2013 ASIX
+ */
+
+#include <linux/etherdevice.h>
+#include "ax88179_lib.h"
+
+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+
+ ax179_data->in_pm = pm_mode;
+}
+
+static int ax88179_in_pm(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+
+ return ax179_data->in_pm;
+}
+
+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, void *d, u16 size);
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ int ret;
+
+ if (!ax88179_in_pm(dev))
+ fn = usbnet_read_cmd;
+ else
+ fn = usbnet_read_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0 && !(ret == -ENODEV && ax179_data->disconnecting)))
+ netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, const void *data)
+{
+ int (*fn)(struct usbnet *dev, u8 cmd, u8 rtype, u16 val, u16 i, const void *d, u16 size);
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ int ret;
+
+ if (!ax88179_in_pm(dev))
+ fn = usbnet_write_cmd;
+ else
+ fn = usbnet_write_cmd_nopm;
+
+ ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index, data, size);
+
+ if (unlikely(ret < 0 && !(ret == -ENODEV && ax179_data->disconnecting)))
+ netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
+ index, ret);
+
+ return ret;
+}
+
+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
+ u16 index, u16 size, void *data)
+{
+ u16 buf;
+
+ if (size == 2) {
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, &buf,
+ size);
+ } else {
+ usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, value, index, data,
+ size);
+ }
+}
+
+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data)
+{
+ int ret;
+
+ if (size == 2) {
+ u16 buf = 0;
+
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
+ le16_to_cpus(&buf);
+ *((u16 *)data) = buf;
+ } else if (size == 4) {
+ u32 buf = 0;
+
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
+ le32_to_cpus(&buf);
+ *((u32 *)data) = buf;
+ } else {
+ ret = __ax88179_read_cmd(dev, cmd, value, index, size, data);
+ }
+
+ return ret;
+}
+
+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, const void *data)
+{
+ int ret;
+
+ if (size == 2) {
+ u16 buf;
+
+ buf = *((u16 *)data);
+ cpu_to_le16s(&buf);
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, &buf);
+ } else {
+ ret = __ax88179_write_cmd(dev, cmd, value, index,
+ size, data);
+ }
+
+ return ret;
+}
+
+struct ax88179_data *netdev2data(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+
+ return dev->driver_priv;
+}
+
+void ax88179_status(struct usbnet *dev, struct urb *urb)
+{
+ struct ax88179_int_data *event;
+ u32 link;
+
+ if (urb->actual_length < 8)
+ return;
+
+ event = urb->transfer_buffer;
+ le32_to_cpus((void *)&event->intdata1);
+
+ link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
+
+ if (netif_carrier_ok(dev->net) != link) {
+ usbnet_link_change(dev, link, 1);
+ if (!link)
+ netdev_info(dev->net, "ax88179 - Link status is: 0\n");
+ }
+}
+
+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res;
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+ return res;
+}
+
+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u16 res = (u16)val;
+
+ ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
+}
+
+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = dev->driver_priv;
+
+ wolinfo->supported = priv->wol_supported;
+ wolinfo->wolopts = priv->wolopts;
+}
+
+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *priv = dev->driver_priv;
+
+ if (wolinfo->wolopts & ~(priv->wol_supported))
+ return -EINVAL;
+
+ priv->wolopts = wolinfo->wolopts;
+
+ return 0;
+}
+
+static void
+ax88179_eeprom_access_params(struct ax88179_data *ax179_data, int i, u16 *value, u16 *idx)
+{
+ /* AX88179 has a word-addressable EEPROM
+ * AX88179A uses EFUSES with 20 bytes length
+ * AX88279 has an EEPROM addressable in 256 byte blocks
+ */
+ if (ax179_data->chip_version < AX_VERSION_AX88179A) {
+ *value = i;
+ *idx = 1;
+ } else if (ax179_data->chip_version >= AX_VERSION_AX88279) {
+ *value = (i * ax179_data->eeprom_block) >> 16;
+ *idx = (i * ax179_data->eeprom_block) & 0xffff;
+ } else {
+ *value = i << 4;
+ *idx = 0;
+ }
+}
+
+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *ax179_data;
+ int first, last, i, ret;
+ u8 *eeprom_buff;
+
+ ax179_data = dev->driver_priv;
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ eeprom->magic = AX88179_EEPROM_MAGIC;
+
+ first = eeprom->offset / ax179_data->eeprom_block;
+ last = (eeprom->offset + eeprom->len - 1) / ax179_data->eeprom_block;
+
+ eeprom_buff = kzalloc((last - first + 1) * ax179_data->eeprom_block, GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ for (i = first; i <= last; i++) {
+ u16 value, idx;
+
+ ax88179_eeprom_access_params(ax179_data, i, &value, &idx);
+ ret = __ax88179_read_cmd(dev, ax179_data->eeprom_read_cmd,
+ value, idx, ax179_data->eeprom_block,
+ eeprom_buff + (i - first) * ax179_data->eeprom_block);
+
+ if (ret < 0) {
+ kfree(eeprom_buff);
+ return -EIO;
+ }
+ }
+
+ memcpy(data, eeprom_buff + eeprom->offset % ax179_data->eeprom_block, eeprom->len);
+ kfree(eeprom_buff);
+ return 0;
+}
+
+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *ax179_data;
+ u16 *eeprom_buff;
+ int first_word;
+ int last_word;
+ int ret;
+ int i;
+
+ ax179_data = dev->driver_priv;
+ if (ax179_data->chip_version >= AX_VERSION_AX88179A)
+ return -EOPNOTSUPP;
+
+ netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
+ eeprom->len, eeprom->offset, eeprom->magic);
+
+ if (eeprom->len == 0)
+ return -EINVAL;
+
+ if (eeprom->magic != AX88179_EEPROM_MAGIC)
+ return -EINVAL;
+
+ first_word = eeprom->offset >> 1;
+ last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+ eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
+ GFP_KERNEL);
+ if (!eeprom_buff)
+ return -ENOMEM;
+
+ /* align data to 16 bit boundaries, read the missing data from
+ * the EEPROM
+ */
+ if (eeprom->offset & 1) {
+ ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
+ &eeprom_buff[0]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
+ goto free;
+ }
+ }
+
+ if ((eeprom->offset + eeprom->len) & 1) {
+ ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
+ &eeprom_buff[last_word - first_word]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
+ goto free;
+ }
+ }
+
+ memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
+
+ for (i = first_word; i <= last_word; i++) {
+ netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
+ i, eeprom_buff[i - first_word]);
+ ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
+ &eeprom_buff[i - first_word]);
+ if (ret < 0) {
+ netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
+ goto free;
+ }
+ msleep(20);
+ }
+
+ /* reload EEPROM data */
+ ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
+ if (ret < 0) {
+ netdev_err(net, "Failed to reload EEPROM data\n");
+ goto free;
+ }
+
+ ret = 0;
+free:
+ kfree(eeprom_buff);
+ return ret;
+}
+
+void ax88179_set_multicast(struct net_device *net)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 *m_filter = ((u8 *)dev->data);
+ struct ax88179_data *data;
+
+ data = dev->driver_priv;
+
+ data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_DROPCRCERR);
+ if (data->ip_align)
+ data->rxctl |= AX_RX_CTL_IPE;
+
+ if (net->flags & IFF_PROMISC) {
+ data->rxctl |= AX_RX_CTL_PRO;
+ } else if (net->flags & IFF_ALLMULTI ||
+ netdev_mc_count(net) > AX_MAX_MCAST) {
+ data->rxctl |= AX_RX_CTL_AMALL;
+ } else if (netdev_mc_empty(net)) {
+ /* just broadcast and directed */
+ } else {
+ /* We use dev->data for our 8 byte filter buffer
+ * to avoid allocating memory that is tricky to free later
+ */
+ u32 crc_bits;
+ struct netdev_hw_addr *ha;
+
+ memset(m_filter, 0, AX_MCAST_FLTSIZE);
+
+ netdev_for_each_mc_addr(ha, net) {
+ crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
+ *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
+ AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
+ m_filter);
+
+ data->rxctl |= AX_RX_CTL_AM;
+ }
+
+ ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
+ 2, 2, &data->rxctl);
+}
+
+int ax88179_set_features(struct net_device *net, netdev_features_t features)
+{
+ u8 tmp;
+ struct usbnet *dev = netdev_priv(net);
+ struct ax88179_data *data = dev->driver_priv;
+ netdev_features_t changed = net->features ^ features;
+
+ if (changed & NETIF_F_IP_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_IPV6_CSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
+ }
+
+ if (changed & NETIF_F_RXCSUM) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
+ 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);
+ data->rx_checksum = !!(features & NETIF_F_RXCSUM);
+ }
+
+ return 0;
+}
+
+void ax88179_get_mac_addr(struct usbnet *dev)
+{
+ u8 mac[ETH_ALEN];
+
+ memset(mac, 0, sizeof(mac));
+
+ /* Maybe the boot loader passed the MAC address via device tree */
+ if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from device tree");
+ } else {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, mac);
+ netif_dbg(dev, ifup, dev->net,
+ "MAC address read from ASIX chip");
+ }
+
+ if (is_valid_ether_addr(mac)) {
+ eth_hw_addr_set(dev->net, mac);
+ if (!is_local_ether_addr(mac))
+ dev->net->addr_assign_type = NET_ADDR_PERM;
+ } else {
+ netdev_info(dev->net, "invalid MAC address, using random\n");
+ }
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
+ dev->net->dev_addr);
+}
+
+int ax88179_change_mtu(struct net_device *net, int new_mtu)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u16 tmp16;
+
+ WRITE_ONCE(net->mtu, new_mtu);
+ dev->hard_mtu = net->mtu + net->hard_header_len;
+
+ if (net->mtu > 1500) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 |= AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ } else {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ tmp16 &= ~AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
+ 2, 2, &tmp16);
+ }
+
+ /* max qlen depend on hard_mtu and rx_urb_size */
+ usbnet_update_max_qlen(dev);
+
+ return 0;
+}
+
+int ax88179_set_mac_addr(struct net_device *net, void *p)
+{
+ struct usbnet *dev = netdev_priv(net);
+ struct sockaddr *addr = p;
+ int ret;
+
+ if (netif_running(net))
+ return -EBUSY;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ eth_hw_addr_set(net, addr->sa_data);
+
+ /* Set the MAC address */
+ ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
+ ETH_ALEN, net->dev_addr);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+
+ priv = dev->driver_priv;
+
+ return priv->suspend(intf, message);
+}
+
+int ax88179_resume_wrapper(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+
+ priv = dev->driver_priv;
+ return priv->resume(intf);
+}
+
diff --git a/drivers/net/usb/ax88179_lib.h b/drivers/net/usb/ax88179_lib.h
new file mode 100644
index 0000000000000..16a6dcbd6e66e
--- /dev/null
+++ b/drivers/net/usb/ax88179_lib.h
@@ -0,0 +1,358 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/phylink.h>
+#include <linux/usb/usbnet.h>
+
+#ifndef __LINUX_USBNET_AX88179_H
+#define __LINUX_USBNET_AX88179_H
+
+#define AX88179_PHY_ID 0x03
+#define AX_EEPROM_LEN 0x100
+#define AX88179_EEPROM_MAGIC 0x17900b95
+#define AX_MCAST_FLTSIZE 8
+#define AX_MAX_MCAST 64
+#define AX_INT_PPLS_LINK ((u32)BIT(16))
+#define AX_RXHDR_L4_TYPE_MASK 0x1c
+#define AX_RXHDR_L4_TYPE_UDP 4
+#define AX_RXHDR_L4_TYPE_TCP 16
+#define AX_RXHDR_L3CSUM_ERR 2
+#define AX_RXHDR_L4CSUM_ERR 1
+#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
+#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
+#define AX_ACCESS_MAC 0x01
+#define AX_ACCESS_PHY 0x02
+#define AX_ACCESS_EEPROM 0x04
+#define AX_ACCESS_EFUS 0x05
+#define AX_RELOAD_EEPROM_EFUSE 0x06
+#define AX88179A_WAKEUP_SETTING 0x07
+#define AX_FW_MODE 0x08
+#define AX_GPHY_CTL 0x0F
+#define AX88179A_FLASH_READ 0x21
+#define AX88179A_FLASH_WEN 0x22
+#define AX88179A_FLASH_WDIS 0x23
+#define AX88179A_FLASH_WRITE 0x24
+#define AX88179A_PHY_CLAUSE45 0x27
+#define AX88179A_FLASH_ERASE_SECTION 0x28
+#define AX88179A_ACCESS_BL 0x2A
+#define AX88179A_PHY_POWER 0x31
+#define AX88179A_AUTODETACH 0xC0
+
+#define AX_PAUSE_WATERLVL_LOW 0x54
+#define AX_PAUSE_WATERLVL_HIGH 0x55
+
+#define AX_FW_MODE_179A 0x01
+#define PHYSICAL_LINK_STATUS 0x02
+ #define AX_USB_SS 0x04
+ #define AX_USB_HS 0x02
+ #define AX_USB_FS 0x01
+
+#define GENERAL_STATUS 0x03
+/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
+ #define AX_SECLD 0x04
+
+#define AX_CHIP_STATUS 0x05
+
+#define AX_SROM_ADDR 0x07
+#define AX_SROM_CMD 0x0a
+ #define EEP_RD 0x04
+ #define EEP_BUSY 0x10
+
+#define AX_SROM_DATA_LOW 0x08
+#define AX_SROM_DATA_HIGH 0x09
+
+#define AX_RX_CTL 0x0b
+ #define AX_RX_CTL_DROPCRCERR 0x0100
+ #define AX_RX_CTL_IPE 0x0200
+ #define AX_RX_CTL_START 0x0080
+ #define AX_RX_CTL_AP 0x0020
+ #define AX_RX_CTL_AM 0x0010
+ #define AX_RX_CTL_AB 0x0008
+ #define AX_RX_CTL_AMALL 0x0002
+ #define AX_RX_CTL_PRO 0x0001
+ #define AX_RX_CTL_STOP 0x0000
+
+#define AX88179A_ETH_TX_GAP 0x0D
+
+#define AX88179A_BFM_DATA 0x0E
+ #define AX_TX_QUEUE_CFG 0x02
+ #define AX_TX_QUEUE_SET 0x08
+ #define AX_TX_Q1_AHB_FC_EN 0x10
+ #define AX_TX_Q2_AHB_FC_EN 0x20
+ #define AX_XGMII_EN 0x80
+
+#define AX_NODE_ID 0x10
+#define AX_MULFLTARY 0x16
+
+#define AX_MEDIUM_STATUS_MODE 0x22
+ #define AX_MEDIUM_GIGAMODE 0x01
+ #define AX_MEDIUM_FULL_DUPLEX 0x02
+ #define AX_MEDIUM_EN_125MHZ 0x08
+ #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
+ #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
+ #define AX_MEDIUM_RECEIVE_EN 0x100
+ #define AX_MEDIUM_PS 0x200
+ #define AX_MEDIUM_JUMBO_EN 0x8040
+
+#define AX_MONITOR_MOD 0x24
+ #define AX_MONITOR_MODE_RWLC 0x02
+ #define AX_MONITOR_MODE_RWMP 0x04
+ #define AX_MONITOR_MODE_PMEPOL 0x20
+ #define AX_MONITOR_MODE_PMETYPE 0x40
+
+#define AX_GPIO_CTRL 0x25
+ #define AX_GPIO_CTRL_GPIO3EN 0x80
+ #define AX_GPIO_CTRL_GPIO2EN 0x40
+ #define AX_GPIO_CTRL_GPIO1EN 0x20
+
+#define AX_PHYPWR_RSTCTL 0x26
+ #define AX_PHYPWR_RSTCTL_BZ 0x0010
+ #define AX_PHYPWR_RSTCTL_IPRL 0x0020
+ #define AX_PHYPWR_RSTCTL_AT 0x1000
+
+#define AX88179A_VLAN_ID_ADDRESS 0x2A
+
+#define AX88179A_VLAN_ID_CONTROL 0x2B
+ #define AX_VLAN_CONTROL_WE 0x0001
+ #define AX_VLAN_CONTROL_RD 0x0002
+ #define AX_VLAN_CONTROL_VSO 0x0010
+ #define AX_VLAN_CONTROL_VFE 0x0020
+
+#define AX88179A_VLAN_ID_DATA0 0x2C
+#define AX88179A_VLAN_ID_DATA1 0x2D
+
+#define AX_RX_BULKIN_QCTRL 0x2e
+#define AX_GPHY_EEE_CTRL 0x01
+
+#define AX_CLK_SELECT 0x33
+ #define AX_CLK_SELECT_BCS 0x01
+ #define AX_CLK_SELECT_ACS 0x02
+ #define AX_CLK_SELECT_ULR 0x08
+
+#define AX_RXCOE_CTL 0x34
+ #define AX_RXCOE_IP 0x01
+ #define AX_RXCOE_TCP 0x02
+ #define AX_RXCOE_UDP 0x04
+ #define AX_RXCOE_TCPV6 0x20
+ #define AX_RXCOE_UDPV6 0x40
+
+#define AX_TXCOE_CTL 0x35
+ #define AX_TXCOE_IP 0x01
+ #define AX_TXCOE_TCP 0x02
+ #define AX_TXCOE_UDP 0x04
+ #define AX_TXCOE_TCPV6 0x20
+ #define AX_TXCOE_UDPV6 0x40
+
+#define AX88179A_MAC_BM_INT_MASK 0x41
+#define AX88179A_MAC_BM_RX_DMA_CTL 0x43
+#define AX88179A_MAC_BM_TX_DMA_CTL 0x46
+
+#define AX88179A_MAC_RX_STATUS_CDC 0x6D
+ #define AX_LSOFC_WCNT_7_ACCESS 0x03
+ #define AX_GMII_CRC_APPEND 0x10
+
+#define AX_LEDCTRL 0x73
+#define AX88179A_MAC_ARC_CTRL 0x9E
+#define AX88179A_MAC_SWP_CTRL 0xB1
+
+#define AX88179A_MAC_TX_PAUSE 0xB2
+
+#define AX88179A_MAC_CDC_DELAY_TX 0xB5
+
+#define AX88179A_MAC_PATH 0xB7
+ #define AX_MAC_RX_PATH_READY 0x01
+ #define AX_MAC_TX_PATH_READY 0x02
+
+#define AX88179A_NEW_PAUSE_CTRL 0xB8
+ #define AX_NEW_PAUSE_EN 0x01
+
+#define AX88179A_MAC_BULK_OUT_CTRL 0xB9
+ #define AX_MAC_EFF_EN 0x02
+
+#define AX88179A_MAC_RX_DATA_CDC_CNT 0xC0
+ #define AX_MAC_LSO_ERR_EN 0x04
+ #define AX_MAC_MIQFFCTRL_FORMAT 0x10
+ #define AX_MAC_MIQFFCTRL_DROP_CRC 0x20
+
+#define AX88179A_AUTODETACH_DELAY (5UL << 8)
+#define AX88179A_AUTODETACH_EN 1
+
+#define AX88179A_MAC_LSO_ENHANCE_CTRL 0xC3
+ #define AX_LSO_ENHANCE_EN 0x01
+
+#define AX88179A_MAC_TX_HDR_CKSUM 0xCC
+#define AX88179A_EP5_EHR 0xF9
+
+#define AX_PHY_POWER 0x02
+
+#define EPHY_LOW_POWER_EN 0x01
+#define S5_WOL_EN 0x04
+#define S5_WOL_LOW_POWER 0x20
+
+#define GMII_PHY_PHYSR 0x11
+ #define GMII_PHY_PHYSR_SMASK 0xc000
+ #define GMII_PHY_PHYSR_GIGA 0x8000
+ #define GMII_PHY_PHYSR_100 0x4000
+ #define GMII_PHY_PHYSR_FULL 0x2000
+ #define GMII_PHY_PHYSR_LINK 0x400
+
+#define GMII_LED_ACT 0x1a
+ #define GMII_LED_ACTIVE_MASK 0xff8f
+ #define GMII_LED0_ACTIVE BIT(4)
+ #define GMII_LED1_ACTIVE BIT(5)
+ #define GMII_LED2_ACTIVE BIT(6)
+
+#define GMII_LED_LINK 0x1c
+ #define GMII_LED_LINK_MASK 0xf888
+ #define GMII_LED0_LINK_10 BIT(0)
+ #define GMII_LED0_LINK_100 BIT(1)
+ #define GMII_LED0_LINK_1000 BIT(2)
+ #define GMII_LED1_LINK_10 BIT(4)
+ #define GMII_LED1_LINK_100 BIT(5)
+ #define GMII_LED1_LINK_1000 BIT(6)
+ #define GMII_LED2_LINK_10 BIT(8)
+ #define GMII_LED2_LINK_100 BIT(9)
+ #define GMII_LED2_LINK_1000 BIT(10)
+ #define LED0_ACTIVE BIT(0)
+ #define LED0_LINK_10 BIT(1)
+ #define LED0_LINK_100 BIT(2)
+ #define LED0_LINK_1000 BIT(3)
+ #define LED0_FD BIT(4)
+ #define LED0_USB3_MASK 0x001f
+ #define LED1_ACTIVE BIT(5)
+ #define LED1_LINK_10 BIT(6)
+ #define LED1_LINK_100 BIT(7)
+ #define LED1_LINK_1000 BIT(8)
+ #define LED1_FD BIT(9)
+ #define LED1_USB3_MASK 0x03e0
+ #define LED2_ACTIVE BIT(10)
+ #define LED2_LINK_1000 BIT(13)
+ #define LED2_LINK_100 BIT(12)
+ #define LED2_LINK_10 BIT(11)
+ #define LED2_FD BIT(14)
+ #define LED_VALID BIT(15)
+ #define LED2_USB3_MASK 0x7c00
+
+#define GMII_PHYPAGE 0x1e
+#define GMII_PHY_PAGE_SELECT 0x1f
+ #define GMII_PHY_PGSEL_EXT 0x0007
+ #define GMII_PHY_PGSEL_PAGE0 0x0000
+ #define GMII_PHY_PGSEL_PAGE3 0x0003
+ #define GMII_PHY_PGSEL_PAGE5 0x0005
+
+/* TX Descriptor */
+#define AX179A_TX_DESC_LEN_MASK 0x1FFFFF
+#define AX179A_TX_DESC_DROP_PADD BIT(28)
+#define AX179A_TX_DESC_VLAN BIT(29)
+#define AX179A_TX_DESC_MSS_MASK 0x7FFF
+#define AX179A_TX_DESC_MSS_SHIFT 0x20
+#define AX179A_TX_DESC_VLAN_MASK 0xFFFF
+#define AX179A_TX_DESC_VLAN_SHIFT 0x30
+
+/* RX Packet Descriptor */
+#define AX179A_RX_PD_L4_ERR BIT(0)
+#define AX179A_RX_PD_L3_ERR BIT(1)
+#define AX179A_RX_PD_L4_TYPE_MASK 0x1C
+#define AX179A_RX_PD_L4_UDP 0x04
+#define AX179A_RX_PD_L4_TCP 0x10
+#define AX179A_RX_PD_L3_TYPE_MASK 0x60
+#define AX179A_RX_PD_L3_IP 0x20
+#define AX179A_RX_PD_L3_IP6 0x40
+
+#define AX179A_RX_PD_VLAN BIT(10)
+#define AX179A_RX_PD_RX_OK BIT(11)
+#define AX179A_RX_PD_DROP BIT(31)
+#define AX179A_RX_PD_LEN_MASK 0x7FFF0000
+#define AX179A_RX_PD_LEN_SHIFT 0x10
+#define AX179A_RX_PD_VLAN_SHIFT 0x20
+
+/* RX Descriptor header */
+#define AX179A_RX_DH_PKT_CNT_MASK 0x1FFF
+#define AX179A_RX_DH_DESC_OFFSET_MASK 0xFFFFE000
+#define AX179A_RX_DH_DESC_OFFSET_SHIFT 0x0D
+
+#define AX179A_RX_HW_PAD 0x02
+
+#define AX_ADVERTISE_2500 0x1000
+
+enum ax_ether_link_speed {
+ ETHER_LINK_NONE = 0,
+ ETHER_LINK_10 = 1,
+ ETHER_LINK_100 = 2,
+ ETHER_LINK_1000 = 3,
+ ETHER_LINK_2500 = 4,
+};
+
+enum ax_chip_version {
+ AX_VERSION_INVALID = 0x0,
+ AX_VERSION_AX88179 = 0x4,
+ AX_VERSION_AX88179A = 0x6, /* Also AX88772D */
+ AX_VERSION_AX88279 = 0x7,
+};
+
+struct ax88179_data {
+ u8 eee_enabled;
+ u8 eee_active;
+ u16 rxctl;
+ u8 in_pm;
+ u32 wol_supported;
+ u32 wolopts;
+ u8 disconnecting;
+ u8 chip_version;
+ u8 fw_version[4];
+ u8 is_ax88772d;
+ u8 ip_align;
+ u8 link;
+ u8 speed;
+ u8 full_duplex;
+ u8 rx_checksum;
+ u8 eeprom_read_cmd;
+ u8 eeprom_write_cmd;
+ u8 eeprom_wen;
+ u16 eeprom_block;
+ struct mii_bus *mdio;
+ struct phy_device *phydev;
+ struct phylink *phylink;
+ struct phylink_config phylink_config;
+ int (*resume)(struct usb_interface *intf);
+ int (*suspend)(struct usb_interface *intf, pm_message_t message);
+};
+
+struct ax88179_int_data {
+ __le32 intdata1;
+ __le32 intdata2;
+};
+
+struct ax_bulkin_settings {
+ unsigned char ctrl, timer_l, timer_h, size, ifg;
+};
+
+void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode);
+int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);
+int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data);
+int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size,
+ const void *data);
+void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
+ u16 size, void *data);
+int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc);
+void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc, int val);
+struct ax88179_data *netdev2data(struct net_device *net);
+void ax88179_status(struct usbnet *dev, struct urb *urb);
+void ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+int ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo);
+int ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);
+int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8 *data);
+void ax88179_set_multicast(struct net_device *net);
+int ax88179_set_features(struct net_device *net, netdev_features_t features);
+void ax88179_get_mac_addr(struct usbnet *dev);
+int ax88179_change_mtu(struct net_device *net, int new_mtu);
+int ax88179_set_mac_addr(struct net_device *net, void *p);
+int ax88179_suspend_wrapper(struct usb_interface *intf, pm_message_t message);
+int ax88179_resume_wrapper(struct usb_interface *intf);
+
+extern const struct driver_info ax88179a_info;
+extern const struct driver_info ax88772d_info;
+extern const struct driver_info ax88279_info;
+
+#endif /*__LINUX_USBNET_AX88179_H */
diff --git a/drivers/net/usb/ax88179a_devices.c b/drivers/net/usb/ax88179a_devices.c
new file mode 100644
index 0000000000000..7408ac8c87a84
--- /dev/null
+++ b/drivers/net/usb/ax88179a_devices.c
@@ -0,0 +1,1210 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <linux/module.h>
+#include <linux/phylink.h>
+#include <linux/if_vlan.h>
+#include "ax88179_lib.h"
+
+static int ax88179a_reset(struct usbnet *dev);
+
+#define AX88279_EEPROM_LEN 0x4000
+#define AX88179A_EEPROM_LEN (32 * 20)
+
+enum ax_bulk_in_speeds {
+ BULK_IN_SPEED_2G5 = 0,
+ BULK_IN_SPEED_1G_SS = 1,
+ BULK_IN_SPEED_1G_HS = 2,
+ BULK_IN_SPEED_100_FULL_SS = 3,
+ BULK_IN_SPEED_100_HALF_SS = 4,
+ BULK_IN_SPEED_100_FULL_HS = 5,
+ BULK_IN_SPEED_100_HALF_HS = 6,
+ BULK_IN_SPEED_FS = 7,
+};
+
+static const struct ax_bulkin_settings AX88179A_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_1G_SS] = {5, 0x7B, 0x00, 0x17, 0x0F},
+ [BULK_IN_SPEED_1G_HS] = {5, 0xC0, 0x02, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_SS] = {7, 0xF0, 0x00, 0x0C, 0x0F},
+ [BULK_IN_SPEED_100_HALF_SS] = {6, 0x00, 0x00, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_HS] = {5, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static const struct ax_bulkin_settings AX88772D_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_100_FULL_HS] = {5, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0xC0, 0x04, 0x06, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static const struct ax_bulkin_settings AX88279_BULKIN_SIZE[] = {
+ [BULK_IN_SPEED_2G5] = {5, 0x10, 0x01, 0x11, 0x0F},
+ [BULK_IN_SPEED_1G_SS] = {7, 0xB3, 0x01, 0x11, 0x0F},
+ [BULK_IN_SPEED_1G_HS] = {7, 0xC0, 0x02, 0x06, 0x0F},
+ [BULK_IN_SPEED_100_FULL_SS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_HALF_SS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_FULL_HS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_100_HALF_HS] = {7, 0x80, 0x01, 0x03, 0x0F},
+ [BULK_IN_SPEED_FS] = {7, 0x00, 0x00, 0x03, 0x3F},
+};
+
+static int ax88179_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum)
+{
+ struct usbnet *dev = bus->priv;
+ struct ax88179_data *priv;
+ u16 res;
+
+ priv = dev->driver_priv;
+ /* When reading PHYSID, return unused PHY-IDs from the ASIX vendor range */
+ if (phy_id == AX88179_PHY_ID && regnum == MII_PHYSID1)
+ return 0x003b;
+ if (phy_id == AX88179_PHY_ID && regnum == MII_PHYSID2) {
+ if (priv->chip_version == AX_VERSION_AX88179A && priv->is_ax88772d)
+ return 0x772d;
+ else if (priv->chip_version == AX_VERSION_AX88179A)
+ return 0x179a;
+ else if (priv->chip_version == AX_VERSION_AX88279)
+ return 0x2790;
+ }
+
+ ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, &res);
+ return res;
+}
+
+static int ax88179_mdiobus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val)
+{
+ struct usbnet *dev = bus->priv;
+
+ return ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)regnum, 2, &val);
+}
+
+static int ax179a_read_mmd(struct usbnet *dev, u16 dev_addr, u16 reg)
+{
+ u16 res;
+ int ret;
+
+ ret = ax88179_read_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, &res);
+ if (ret < 0)
+ return ret;
+ return res;
+}
+
+static int ax179a_write_mmd(struct usbnet *dev, u16 dev_addr, u16 reg, u16 data)
+{
+ return ax88179_write_cmd(dev, AX88179A_PHY_CLAUSE45, dev_addr, reg, 2, &data);
+}
+
+static int ax88179_mdiobus_read_c45(struct mii_bus *bus, int addr, int devnum, int regnum)
+{
+ struct usbnet *dev = bus->priv;
+
+ if (addr != AX88179_PHY_ID)
+ return -EINVAL;
+
+ return ax179a_read_mmd(dev, devnum, regnum);
+}
+
+static int ax88179_mdiobus_write_c45(struct mii_bus *bus, int addr, int devnum,
+ int regnum, u16 val)
+{
+ struct usbnet *dev = bus->priv;
+
+ if (addr != AX88179_PHY_ID)
+ return -EINVAL;
+
+ return ax179a_write_mmd(dev, devnum, regnum, val);
+}
+
+static void ax88179a_status(struct usbnet *dev, struct urb *urb)
+{
+ if (urb->actual_length < 8)
+ return;
+
+ phylink_mac_interrupt(data->phylink);
+}
+
+static int ax88179a_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *priv;
+ u16 tmp16;
+ u8 tmp8;
+
+ priv = dev->driver_priv;
+ ax88179_set_pm_mode(dev, true);
+
+ if (netif_running(dev->net)) {
+ rtnl_lock();
+ phylink_suspend(priv->phylink, !!priv->wolopts);
+ rtnl_unlock();
+ }
+
+ /* Enable WoL */
+ if (priv->wolopts) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, &tmp8);
+ if (priv->wolopts & WAKE_PHY)
+ tmp8 |= AX_MONITOR_MODE_RWLC;
+ if (priv->wolopts & WAKE_MAGIC)
+ tmp8 |= AX_MONITOR_MODE_RWMP;
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, &tmp8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &tmp16);
+ tmp16 |= AX_MEDIUM_RECEIVE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &tmp16);
+
+ if (priv->chip_version == AX_VERSION_AX88279)
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8,
+ EPHY_LOW_POWER_EN | S5_WOL_EN
+ | S5_WOL_LOW_POWER | 0x8000, 0, NULL);
+ else
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 0,
+ EPHY_LOW_POWER_EN, 0, NULL);
+
+ } else if (priv->chip_version == AX_VERSION_AX88279) {
+ ax88179_write_cmd(dev, AX88179A_WAKEUP_SETTING, 8, 0x8000, 0, NULL);
+ }
+
+ usbnet_suspend(intf, message);
+ ax88179_set_pm_mode(dev, false);
+ return 0;
+}
+
+static int ax88179a_auto_detach(struct usbnet *dev)
+{
+ u16 tmp16;
+
+ tmp16 = AX88179A_AUTODETACH_DELAY;
+ ax88179_write_cmd(dev, AX88179A_AUTODETACH, tmp16, 0, 0, NULL);
+ return 0;
+}
+
+static int ax88179a_resume(struct usb_interface *intf)
+{
+ struct usbnet *dev = usb_get_intfdata(intf);
+ struct ax88179_data *ax179_data;
+ u8 reg8;
+
+ ax179_data = dev->driver_priv;
+ ax88179_set_pm_mode(dev, true);
+
+ ax88179_read_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ if (!(reg8 & AX_PHY_POWER)) {
+ reg8 = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+ }
+ ax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);
+
+ /* Now, that AX_FW_MODE_179A is enabled, the PHY needs a power-cycle.
+ * PHY-power is re-enabled in ax88179_reset()
+ */
+ reg8 = 0;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+
+ ax88179a_reset(dev);
+
+ if (netif_running(dev->net)) {
+ rtnl_lock();
+ phylink_resume(ax179_data->phylink);
+ rtnl_unlock();
+ }
+
+ ax88179_set_pm_mode(dev, false);
+
+ return usbnet_resume(intf);
+}
+
+static void ax88179a_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
+{
+ struct ax88179_data *priv = netdev2data(net);
+
+ /* Inherit standard device info */
+ usbnet_get_drvinfo(net, info);
+ if (priv->chip_version < AX_VERSION_AX88179A)
+ return;
+
+ snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d.%d",
+ priv->fw_version[0], priv->fw_version[1],
+ priv->fw_version[2], priv->fw_version[3]);
+}
+
+static void ax88179a_bulkin_config(struct usbnet *dev, u8 link_sts, u8 speed, bool full_duplex)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ const struct ax_bulkin_settings *bulkin_data;
+ int index = 0;
+
+ switch (speed) {
+ case ETHER_LINK_2500: /* AX88279 only */
+ index = BULK_IN_SPEED_2G5;
+ break;
+
+ case ETHER_LINK_1000: /* AX88279 & AX88178A */
+ if (link_sts & AX_USB_SS)
+ index = BULK_IN_SPEED_1G_SS;
+ else if (link_sts & AX_USB_HS)
+ index = BULK_IN_SPEED_1G_HS;
+ break;
+
+ case ETHER_LINK_100:
+ if (link_sts & AX_USB_SS)
+ index = BULK_IN_SPEED_100_FULL_SS;
+ else if (link_sts & AX_USB_HS)
+ index = BULK_IN_SPEED_100_FULL_HS;
+ if (!full_duplex)
+ index++;
+ break;
+
+ case ETHER_LINK_10:
+ index = BULK_IN_SPEED_FS;
+ break;
+
+ default: /* No link */
+ index = BULK_IN_SPEED_FS;
+ }
+
+ if (ax179_data->chip_version == AX_VERSION_AX88279 && (link_sts & AX_USB_FS))
+ index = BULK_IN_SPEED_FS;
+
+ if (ax179_data->chip_version == AX_VERSION_AX88279) {
+ bulkin_data = AX88279_BULKIN_SIZE;
+ } else {
+ if (ax179_data->is_ax88772d)
+ bulkin_data = AX88772D_BULKIN_SIZE;
+ else
+ bulkin_data = AX88179A_BULKIN_SIZE;
+ }
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, &bulkin_data[index]);
+}
+
+static void ax88179a_get_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)
+{
+ struct ax88179_data *data = netdev2data(net);
+
+ phylink_ethtool_get_pauseparam(data->phylink, pause);
+}
+
+static int ax88179a_set_pauseparam(struct net_device *net, struct ethtool_pauseparam *pause)
+{
+ struct ax88179_data *data = netdev2data(net);
+
+ return phylink_ethtool_set_pauseparam(data->phylink, pause);
+}
+
+static int ax88179a_get_eeprom_len(struct net_device *net)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ if (ax179_data->chip_version >= AX_VERSION_AX88279)
+ return AX88279_EEPROM_LEN;
+ else
+ return AX88179A_EEPROM_LEN;
+}
+
+static int ax88179a_get_eee(struct net_device *net, struct ethtool_keee *edata)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ return phylink_ethtool_get_eee(ax179_data->phylink, edata);
+}
+
+static int ax88179a_set_eee(struct net_device *net, struct ethtool_keee *edata)
+{
+ struct ax88179_data *ax179_data = netdev2data(net);
+
+ return phylink_ethtool_set_eee(ax179_data->phylink, edata);
+}
+
+static const struct ethtool_ops ax88179a_ethtool_ops = {
+ .get_drvinfo = ax88179a_get_drvinfo,
+ .get_link = ethtool_op_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_wol = ax88179_get_wol,
+ .set_wol = ax88179_set_wol,
+ .get_eeprom_len = ax88179a_get_eeprom_len,
+ .get_eeprom = ax88179_get_eeprom,
+ .set_eeprom = ax88179_set_eeprom,
+ .get_eee = ax88179a_get_eee,
+ .set_eee = ax88179a_set_eee,
+ .nway_reset = usbnet_nway_reset,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_pauseparam = ax88179a_get_pauseparam,
+ .set_pauseparam = ax88179a_set_pauseparam,
+ .get_ts_info = ethtool_op_get_ts_info,
+};
+
+static int ax88179a_vlan_rx_kill_vid(struct net_device *net, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 vlan_ctrl;
+ u16 reg16;
+ u8 reg8;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+ vlan_ctrl = reg8;
+
+ /* Address */
+ reg8 = (vid / 16);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, ®8);
+
+ /* Data */
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+ reg16 &= ~(1 << (vid % 16));
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ return 0;
+}
+
+static int ax88179a_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)
+{
+ struct usbnet *dev = netdev_priv(net);
+ u8 vlan_ctrl;
+ u16 reg16;
+ u8 reg8;
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+ vlan_ctrl = reg8;
+
+ /* Address */
+ reg8 = (vid / 16);
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS, 1, 1, ®8);
+
+ /* Data */
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_RD;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+ reg16 |= (1 << (vid % 16));
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0, 2, 2, ®16);
+
+ reg8 = vlan_ctrl | AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, ®8);
+
+ return 0;
+}
+
+static void ax88179a_mdio_unregister(struct ax88179_data *data)
+{
+ mdiobus_unregister(data->mdio);
+ mdiobus_free(data->mdio);
+}
+
+static int ax88179a_init_phy(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ int ret;
+
+ data->phydev = mdiobus_get_phy(data->mdio, AX88179_PHY_ID);
+ if (!data->phydev) {
+ netdev_err(dev->net, "Could not find PHY\n");
+ return -ENODEV;
+ }
+
+ data->phydev->irq = PHY_MAC_INTERRUPT;
+ ret = phylink_connect_phy(data->phylink, data->phydev);
+ if (ret) {
+ netdev_err(dev->net, "Could not connect PHY\n");
+ return ret;
+ }
+
+ phy_suspend(data->phydev);
+ data->phydev->mac_managed_pm = true;
+
+ phy_attached_info(data->phydev);
+
+ return 0;
+}
+
+static void ax88179a_mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state)
+{
+ /* Nothing to do */
+}
+
+static void ax88179a_mac_link_down(struct phylink_config *config,
+ unsigned int mode, phy_interface_t interface)
+{
+ /* Nothing to do */
+}
+
+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)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u8 tmp8, link_sts, reg8[3];
+ u8 bulk_config_speed = 0;
+ u16 tmp16, mode;
+
+ /* Stop RX/TX for link configuration */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, &tmp8);
+
+ tmp8 = 0xa5;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_CDC_DELAY_TX, 1, 1, &tmp8);
+
+ tmp16 = 0x0410;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 2, 2, &tmp16);
+
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_ETH_TX_GAP, 1, 1, &tmp8);
+
+ tmp8 = 0x07;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_EP5_EHR, 1, 1, &tmp8);
+
+ tmp8 = 0x28 | AX_NEW_PAUSE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_NEW_PAUSE_CTRL, 1, 1, &tmp8);
+
+ mode = AX_MEDIUM_RECEIVE_EN;
+ if (tx_pause)
+ mode |= AX_MEDIUM_TXFLOW_CTRLEN;
+ if (rx_pause)
+ mode |= AX_MEDIUM_RXFLOW_CTRLEN;
+
+ switch (speed) {
+ case SPEED_2500:
+ reg8[0] = 0x00;
+ reg8[1] = 0xF8;
+ reg8[2] = 0x07;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_TX_PAUSE, 3, 3, reg8);
+
+ reg8[0] = 0x78;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5);
+ reg8[2] = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ reg8[0] = 0x40;
+ reg8[1] = AX_MAC_MIQFFCTRL_FORMAT | AX_MAC_MIQFFCTRL_DROP_CRC | AX_MAC_LSO_ERR_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 2, 2, reg8);
+
+ tmp8 = AX_XGMII_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, &tmp8);
+
+ tmp8 = 0x1C | AX_LSO_ENHANCE_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_LSO_ENHANCE_CTRL, 1, 1, &tmp8);
+
+ mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_FULL_DUPLEX;
+ bulk_config_speed = ETHER_LINK_2500;
+
+ break;
+
+ case SPEED_1000:
+ mode |= AX_MEDIUM_GIGAMODE;
+ bulk_config_speed = ETHER_LINK_1000;
+ fallthrough;
+
+ case SPEED_100:
+ reg8[0] = 0x78;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5) | AX_GMII_CRC_APPEND;
+ reg8[2] = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ tmp8 = 0x40;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, &tmp8);
+ if (!bulk_config_speed)
+ bulk_config_speed = ETHER_LINK_100;
+ break;
+
+ case SPEED_10:
+ reg8[0] = 0xFA;
+ reg8[1] = (AX_LSOFC_WCNT_7_ACCESS << 5) | AX_GMII_CRC_APPEND;
+ reg8[2] = 0xFF;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_STATUS_CDC, 3, 3, reg8);
+
+ tmp8 = 0xFA;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_RX_DATA_CDC_CNT, 1, 1, &tmp8);
+
+ bulk_config_speed = ETHER_LINK_10;
+ break;
+ }
+
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 1, 1, &link_sts);
+ ax88179a_bulkin_config(dev, link_sts, bulk_config_speed, !!duplex);
+
+ if (ax179_data->chip_version < AX_VERSION_AX88279) {
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_BFM_DATA, 1, 1, &tmp8);
+ }
+
+ if (duplex)
+ mode |= AX_MEDIUM_FULL_DUPLEX;
+
+ if (dev->net->mtu > 1500)
+ mode |= AX_MEDIUM_JUMBO_EN;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, &mode);
+
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &ax179_data->rxctl);
+
+ tmp8 = AX_MAC_RX_PATH_READY | AX_MAC_TX_PATH_READY;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_MAC_PATH, 1, 1, &tmp8);
+}
+
+static void ax88179a_mac_disable_tx_lpi(struct phylink_config *config)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+
+ ax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, false, 0, NULL);
+}
+
+static int ax88179a_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, bool tx_clk_stop)
+{
+ struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
+
+ /* AX88179A does not provide LPI timer registers */
+ return ax88179_write_cmd(dev, AX_GPHY_CTL, AX_GPHY_EEE_CTRL, true, 0, NULL);
+}
+
+static const struct phylink_mac_ops ax88179a_phylink_mac_ops = {
+ .mac_config = ax88179a_mac_config,
+ .mac_link_down = ax88179a_mac_link_down,
+ .mac_link_up = ax88179a_mac_link_up,
+ .mac_disable_tx_lpi = ax88179a_mac_disable_tx_lpi,
+ .mac_enable_tx_lpi = ax88179a_mac_enable_tx_lpi,
+};
+
+static int ax88179a_phylink_setup(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ phy_interface_t phy_if_mode;
+ struct phylink *phylink;
+
+ data->phylink_config.dev = &dev->net->dev;
+ data->phylink_config.type = PHYLINK_NETDEV;
+ data->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_100;
+ if (data->is_ax88772d)
+ data->phylink_config.mac_capabilities |= MAC_10;
+ else if (data->chip_version < AX_VERSION_AX88279)
+ data->phylink_config.mac_capabilities |= MAC_10 | MAC_1000;
+ else
+ data->phylink_config.mac_capabilities |= MAC_1000 | MAC_2500FD;
+
+ if (!data->is_ax88772d) {
+ data->phylink_config.lpi_capabilities = MAC_100FD | MAC_1000FD;
+ data->phylink_config.eee_enabled_default = false;
+ }
+
+ if (data->chip_version == AX_VERSION_AX88279) {
+ __set_bit(PHY_INTERFACE_MODE_2500BASEX,
+ data->phylink_config.supported_interfaces);
+ __set_bit(PHY_INTERFACE_MODE_SGMII,
+ data->phylink_config.supported_interfaces);
+ phy_if_mode = PHY_INTERFACE_MODE_2500BASEX;
+ } else {
+ __set_bit(PHY_INTERFACE_MODE_SGMII,
+ data->phylink_config.supported_interfaces);
+ phy_if_mode = PHY_INTERFACE_MODE_SGMII;
+ }
+
+ memcpy(data->phylink_config.lpi_interfaces,
+ data->phylink_config.supported_interfaces,
+ sizeof(data->phylink_config.lpi_interfaces));
+
+ phylink = phylink_create(&data->phylink_config, dev->net->dev.fwnode,
+ phy_if_mode, &ax88179a_phylink_mac_ops);
+ if (IS_ERR(phylink))
+ return PTR_ERR(phylink);
+
+ data->phylink = phylink;
+ return 0;
+}
+
+static int ax88179a_init_mdio(struct usbnet *dev)
+{
+ struct ax88179_data *data = dev->driver_priv;
+ int ret;
+
+ data->mdio = mdiobus_alloc();
+ if (!data->mdio)
+ return -ENOMEM;
+
+ data->mdio->priv = dev;
+ data->mdio->read = ax88179_mdiobus_read;
+ data->mdio->write = ax88179_mdiobus_write;
+ data->mdio->read_c45 = ax88179_mdiobus_read_c45;
+ data->mdio->write_c45 = ax88179_mdiobus_write_c45;
+ data->mdio->name = "AX88179A MDIO Bus";
+ data->mdio->phy_mask = ~(1 << AX88179_PHY_ID);
+ /* mii bus name is usb-<usb bus number>-<usb device number> */
+ snprintf(data->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+ dev->udev->bus->busnum, dev->udev->devnum);
+
+ ret = mdiobus_register(data->mdio);
+ if (ret) {
+ netdev_err(dev->net, "Could not register MDIO bus (err %d)\n", ret);
+ mdiobus_free(data->mdio);
+ data->mdio = NULL;
+ }
+
+ return ret;
+}
+
+static int ax88179a_set_features(struct net_device *net, netdev_features_t features)
+{
+ struct usbnet *dev = netdev_priv(net);
+ netdev_features_t changed;
+ int ret;
+ u8 tmp;
+
+ changed = net->features ^ features;
+
+ ret = ax88179_set_features(net, features);
+ if (ret)
+ return ret;
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ tmp ^= AX_VLAN_CONTROL_VFE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ if (features & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ for (int i = 0; i < 256; i++) {
+ u16 tmp16 = 0;
+ /* Address */
+ tmp = i;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_ADDRESS,
+ 1, 1, &tmp);
+ /* Data */
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_DATA0,
+ 2, 2, &tmp16);
+ tmp = AX_VLAN_CONTROL_WE;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL,
+ 1, 1, &tmp);
+ }
+ }
+ }
+
+ if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
+ ax88179_read_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ tmp ^= AX_VLAN_CONTROL_VSO;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX88179A_VLAN_ID_CONTROL, 1, 1, &tmp);
+ }
+
+ return 0;
+}
+
+static const struct net_device_ops ax88179a_netdev_ops = {
+ .ndo_open = usbnet_open,
+ .ndo_stop = usbnet_stop,
+ .ndo_start_xmit = usbnet_start_xmit,
+ .ndo_tx_timeout = usbnet_tx_timeout,
+ .ndo_get_stats64 = dev_get_tstats64,
+ .ndo_change_mtu = ax88179_change_mtu,
+ .ndo_set_mac_address = ax88179_set_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_eth_ioctl = usbnet_mii_ioctl,
+ .ndo_set_rx_mode = ax88179_set_multicast,
+ .ndo_set_features = ax88179a_set_features,
+ .ndo_vlan_rx_add_vid = ax88179a_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = ax88179a_vlan_rx_kill_vid,
+};
+
+static int ax88179a_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct ax88179_data *ax179_data;
+ int ret;
+ u8 reg8;
+
+ /* Check if vendor configuration */
+ if (udev->actconfig->desc.bConfigurationValue != 1) {
+ netdev_info(dev->net, "Switching to vendor mode\n");
+ usb_driver_set_configuration(udev, 1);
+ return -ENODEV;
+ }
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret < 0)
+ return ret;
+
+ ax179_data = kzalloc_obj(*ax179_data);
+ if (!ax179_data)
+ return -ENOMEM;
+
+ dev->driver_priv = ax179_data;
+
+ ret = ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CHIP_STATUS,
+ 1, 1, &ax179_data->chip_version);
+ if (ret < 0)
+ goto err_nodev;
+
+ ax179_data->chip_version = (ax179_data->chip_version & 0xf0) >> 4;
+ ax179_data->is_ax88772d = 0;
+ if (ax179_data->chip_version == AX_VERSION_AX88179A) {
+ if (udev->descriptor.bcdDevice == 0x300)
+ ax179_data->is_ax88772d = 1;
+ }
+
+ for (int i = 0; i < 3; i++) {
+ ret = ax88179_read_cmd(dev, AX88179A_ACCESS_BL, (0xFD + i),
+ 1, 1, &ax179_data->fw_version[i]);
+ if (ret < 0)
+ ax179_data->fw_version[i] = 0xff;
+ }
+ netdev_info(dev->net, "AX88179A/279/772D Chip Version: %x, FW: %d.%d.%d.%d\n",
+ ax179_data->chip_version,
+ ax179_data->fw_version[0], ax179_data->fw_version[1],
+ ax179_data->fw_version[2], ax179_data->fw_version[3]);
+
+ /* The AX88279 requires both the AX_RX_CTL_IPE and AX_RX_CTL_DROPCRCERR
+ * bits set in AX_RX_CTL for creating correct RX-URBs. AX_RX_CTL_DROPCRCERR
+ * is anyway set for all chips, make sure AX_RX_CTL_IPE is set via ip_align.
+ * Also configure eeprom access parameters.
+ */
+ if (ax179_data->chip_version == AX_VERSION_AX88279) {
+ ax179_data->ip_align = 1;
+ ax179_data->eeprom_read_cmd = AX88179A_FLASH_READ;
+ ax179_data->eeprom_write_cmd = AX88179A_FLASH_WRITE;
+ ax179_data->eeprom_block = 256;
+ ax179_data->eeprom_wen = 1;
+ } else {
+ ax179_data->ip_align = 0;
+ ax179_data->eeprom_read_cmd = AX_ACCESS_EFUS;
+ ax179_data->eeprom_write_cmd = AX_ACCESS_EFUS;
+ ax179_data->eeprom_block = 20;
+ ax179_data->eeprom_wen = 0;
+ }
+
+ ax179_data->resume = ax88179a_resume;
+ ax179_data->suspend = ax88179a_suspend;
+
+ dev->net->netdev_ops = &ax88179a_netdev_ops;
+ dev->net->ethtool_ops = &ax88179a_ethtool_ops;
+ dev->net->needed_headroom = 8;
+ dev->net->needed_tailroom = 8;
+ dev->net->min_mtu = ETH_MIN_MTU;
+ dev->hard_mtu = 9 * 1024;
+ dev->net->max_mtu = dev->hard_mtu - dev->net->hard_header_len;
+
+ if (!ax179_data->is_ax88772d)
+ dev->mii.supports_gmii = 1;
+
+ dev->net->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_FILTER;
+
+ dev->net->hw_features |= dev->net->features;
+
+ dev->net->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO;
+
+ netif_set_tso_max_size(dev->net, 16384);
+
+ /* Enable Transmission of Link Speed byte in interrupt URB */
+ ax88179_write_cmd(dev, AX_FW_MODE, AX_FW_MODE_179A, 0, 0, NULL);
+ ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0, 0, 0, NULL);
+
+ /* Read MAC address from DTB or ASIX chip */
+ ax88179_get_mac_addr(dev);
+ memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
+
+ /* Power PHY for probing */
+ reg8 = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, ®8);
+ msleep(250);
+
+ ret = ax88179a_init_mdio(dev);
+ if (ret)
+ goto err_nodev;
+
+ ret = ax88179a_phylink_setup(dev);
+ if (ret)
+ goto phylink_err;
+
+ ret = ax88179a_init_phy(dev);
+ if (ret)
+ goto initphy_err;
+
+ return 0;
+
+initphy_err:
+ phylink_destroy(ax179_data->phylink);
+phylink_err:
+ ax88179a_mdio_unregister(ax179_data);
+err_nodev:
+ kfree(ax179_data);
+ ax179_data = NULL;
+
+ return ret;
+}
+
+static void ax88179a_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u16 tmp16;
+ u8 tmp8;
+
+ /* Configure RX control register => stop operation */
+ tmp16 = AX_RX_CTL_STOP;
+ ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
+
+ rtnl_lock();
+ phylink_disconnect_phy(ax179_data->phylink);
+ rtnl_unlock();
+ phylink_destroy(ax179_data->phylink);
+ ax88179a_mdio_unregister(ax179_data);
+
+ tmp8 = 0;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, &tmp8);
+
+ kfree(ax179_data);
+}
+
+static void ax88179a_rx_checksum(struct sk_buff *skb, u64 pkt_desc)
+{
+ u32 pkt_type;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ /* checksum error bit is set */
+ if (pkt_desc & AX179A_RX_PD_L4_ERR || pkt_desc & AX179A_RX_PD_L3_ERR)
+ return;
+
+ pkt_type = pkt_desc & AX179A_RX_PD_L4_TYPE_MASK;
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (pkt_type == AX179A_RX_PD_L4_TCP || pkt_type == AX179A_RX_PD_L4_UDP)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+}
+
+static int ax88179a_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ struct sk_buff *ax_skb;
+ u32 hdr_off, pkt_end;
+ u64 *pkt_desc_ptr;
+ u16 vlan_tag;
+ u16 pkt_cnt;
+ u64 rx_hdr;
+
+ /* SKB contents for AX179A-based chips:
+ * <packet 1>
+ * ...
+ * <packet N>
+ * <per-packet metadata entry 1>
+ * ...
+ * <per-packet metadata entry N>
+ * <rx_hdr>
+ *
+ * where:
+ * <packet N> contains pkt_len data bytes and padding:
+ * 2 bytes of IP alignment (optional, depends on AX_RX_CTL_IPE flag)
+ * packet data received
+ * optional padding to 8-bytes boundary
+ * <per-packet metadata entry N> contains 8 bytes:
+ * pkt_len and fields AX_RXHDR_*
+ * <rx-hdr> contains 8 bytes:
+ * pkt_cnt and hdr_off (offset of <per-packet metadata entry 1>)
+ *
+ * pkt_cnt is number of entries in the per-packet metadata array.
+ */
+
+ if (!skb || skb->len < sizeof(rx_hdr))
+ goto err;
+
+ /* RX Descriptor Header */
+ skb_trim(skb, skb->len - sizeof(rx_hdr));
+ rx_hdr = le64_to_cpup((u64 *)skb_tail_pointer(skb));
+
+ /* Check these packets */
+ hdr_off = (rx_hdr & AX179A_RX_DH_DESC_OFFSET_MASK) >> AX179A_RX_DH_DESC_OFFSET_SHIFT;
+ pkt_cnt = rx_hdr & AX179A_RX_DH_PKT_CNT_MASK;
+
+ /* Consistency check header position */
+ if (hdr_off != skb->len - (pkt_cnt * sizeof(rx_hdr)))
+ goto err;
+
+ /* Make sure that the bounds of the metadata array are inside the SKB
+ * (and in front of the counter at the end).
+ */
+ if (pkt_cnt * 8 + hdr_off > skb->len)
+ goto err;
+
+ /* Packets must not overlap the metadata array */
+ skb_trim(skb, hdr_off);
+
+ if (!pkt_cnt)
+ goto err;
+
+ /* Get the first RX packet descriptor */
+ pkt_desc_ptr = (u64 *)(skb->data + hdr_off);
+
+ pkt_end = 0;
+ while (pkt_cnt--) {
+ u64 pkt_desc = le64_to_cpup(pkt_desc_ptr);
+ u32 pkt_len_plus_padd;
+ u32 pkt_len;
+
+ pkt_len = (u32)((pkt_desc & AX179A_RX_PD_LEN_MASK) >> AX179A_RX_PD_LEN_SHIFT)
+ - (ax179_data->ip_align ? 2 : 0);
+ pkt_len_plus_padd = ((pkt_len + 7 + (ax179_data->ip_align ? 2 : 0)) & 0x7FFF8);
+
+ pkt_end += pkt_len_plus_padd;
+ if (pkt_end > hdr_off || (pkt_cnt == 0 && pkt_end != hdr_off))
+ goto err;
+
+ if (pkt_desc & AX179A_RX_PD_DROP || !(pkt_desc & AX179A_RX_PD_RX_OK) ||
+ pkt_len > (dev->hard_mtu + AX179A_RX_HW_PAD)) {
+ skb_pull(skb, pkt_len_plus_padd);
+
+ /* Next RX Packet Descriptor */
+ pkt_desc_ptr++;
+ continue;
+ }
+
+ ax_skb = netdev_alloc_skb_ip_align(dev->net, pkt_len);
+ if (!ax_skb)
+ goto err;
+
+ skb_put(ax_skb, pkt_len);
+ memcpy(ax_skb->data, skb->data + (ax179_data->ip_align ? AX179A_RX_HW_PAD : 0),
+ pkt_len);
+
+ if (ax179_data->rx_checksum)
+ ax88179a_rx_checksum(ax_skb, pkt_desc);
+
+ if (pkt_desc & AX179A_RX_PD_VLAN) {
+ vlan_tag = pkt_desc >> AX179A_RX_PD_VLAN_SHIFT;
+ __vlan_hwaccel_put_tag(ax_skb, htons(ETH_P_8021Q),
+ vlan_tag & VLAN_VID_MASK);
+ }
+
+ usbnet_skb_return(dev, ax_skb);
+ skb_pull(skb, pkt_len_plus_padd);
+
+ /* Next RX Packet Header */
+ pkt_desc_ptr++;
+ }
+
+ return 1;
+
+err:
+ return 0;
+}
+
+static struct sk_buff *ax88179a_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
+{
+ u64 tx_desc = skb->len & AX179A_TX_DESC_LEN_MASK;
+ int frame_size = dev->maxpacket;
+ struct sk_buff *ax_skb;
+ u64 *tx_desc_ptr;
+ int padding_size;
+ int headroom;
+ int tailroom;
+ u16 tci = 0;
+
+ /* TSO MSS */
+ tx_desc |= ((u64)(skb_shinfo(skb)->gso_size & AX179A_TX_DESC_MSS_MASK)) <<
+ AX179A_TX_DESC_MSS_SHIFT;
+
+ headroom = (skb->len + sizeof(tx_desc)) % 8;
+ padding_size = headroom ? 8 - headroom : 0;
+
+ if (((skb->len + sizeof(tx_desc) + padding_size) % frame_size) == 0) {
+ padding_size += 8;
+ tx_desc |= AX179A_TX_DESC_DROP_PADD;
+ }
+
+ if ((dev->net->features & NETIF_F_HW_VLAN_CTAG_TX) && (vlan_get_tag(skb, &tci) >= 0)) {
+ tx_desc |= AX179A_TX_DESC_VLAN;
+ tx_desc |= ((u64)tci & AX179A_TX_DESC_VLAN_MASK) << AX179A_TX_DESC_VLAN_SHIFT;
+ }
+
+ if (!dev->can_dma_sg && (dev->net->features & NETIF_F_SG) && skb_linearize(skb))
+ return NULL;
+
+ headroom = skb_headroom(skb);
+ tailroom = skb_tailroom(skb);
+
+ if (!(headroom >= sizeof(tx_desc) && tailroom >= padding_size)) {
+ ax_skb = skb_copy_expand(skb, sizeof(tx_desc), padding_size, flags);
+ dev_kfree_skb_any(skb);
+ skb = ax_skb;
+ if (!skb)
+ return NULL;
+ }
+ if (padding_size != 0)
+ skb_put_zero(skb, padding_size);
+ /* Copy TX header */
+ tx_desc_ptr = skb_push(skb, sizeof(tx_desc));
+ *tx_desc_ptr = cpu_to_le64(tx_desc);
+
+ usbnet_set_skb_tx_stats(skb, 1, 0);
+
+ return skb;
+}
+
+static int ax88179a_reset(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ u16 *tmp16;
+ u8 buf[5];
+ u8 *tmp;
+
+ tmp16 = (u16 *)buf;
+ tmp = (u8 *)buf;
+
+ /* Power up ethernet PHY */
+ *tmp = AX_PHY_POWER;
+ ax88179_write_cmd(dev, AX88179A_PHY_POWER, 0, 0, 1, tmp);
+ msleep(250);
+
+ /* Ethernet PHY Auto Detach*/
+ ax88179a_auto_detach(dev);
+
+ *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;
+ 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);
+
+ /* The Bulk-Register configuration for the AX88179A is done in
+ * ax88179a_mac_link_up(), 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 */
+ 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;
+ 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;
+ if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
+ 1, 1, &tmp) > 0)
+ ax179_data->wol_supported = WAKE_MAGIC | WAKE_PHY;
+
+ /* ax88179a_reset() may also be called from resume context, phylink
+ * is already started, then.
+ */
+ if (!ax179_data->in_pm)
+ phylink_start(ax179_data->phylink);
+
+ usbnet_link_change(dev, 0, 0);
+
+ return 0;
+}
+
+static int ax88179a_stop(struct usbnet *dev)
+{
+ struct ax88179_data *ax179_data = dev->driver_priv;
+ 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);
+
+ phylink_stop(ax179_data->phylink);
+
+ return 0;
+}
+
+const struct driver_info ax88179a_info = {
+ .description = "ASIX AX88179A USB 3.2 Gigabit Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
+
+const struct driver_info ax88772d_info = {
+ .description = "ASIX AX88772D/E USB 2.0 Fast Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
+
+const struct driver_info ax88279_info = {
+ .description = "ASIX AX88279 USB 3.2 2.5Gigabit Ethernet",
+ .bind = ax88179a_bind,
+ .unbind = ax88179a_unbind,
+ .status = ax88179a_status,
+ .reset = ax88179a_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,
+};
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 5f8d65868e0ff..d5f8e527ce8df 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -64,6 +64,7 @@ extern const int phy_basic_ports_array[3];
#define PHY_RST_AFTER_CLK_EN 0x00000002
#define PHY_POLL_CABLE_TEST 0x00000004
#define PHY_ALWAYS_CALL_SUSPEND 0x00000008
+#define PHY_BROKEN_FORCED 0x00000010
#define MDIO_DEVICE_IS_PHY 0x80000000
/**
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 1dda5c7ed5f14..f6c1db837fb50 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -768,6 +768,7 @@ int phylink_ethtool_set_eee(struct phylink *link, struct ethtool_keee *eee);
int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
int phylink_speed_down(struct phylink *pl, bool sync);
int phylink_speed_up(struct phylink *pl);
+void phylink_mac_interrupt(struct phylink *pl);
#define phylink_zero(bm) \
bitmap_zero(bm, __ETHTOOL_LINK_MODE_MASK_NBITS)
|
| 21/3 | 2026/09/03 13:36 | llm | kmsan-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 48401 output: 35 thoughts: 2133 Thoughts: **KMSAN/KASAN Analysis of AX88179 Driver Patch Series**
Okay, let's break down this patch series from a memory safety perspective, specifically focusing on KMSAN and KASAN. We need to be meticulous about potential uninitialized memory reads, which is where these tools excel. I'm focusing on the code that touches user space, data structures, and any conditional logic that might be sensitive.
First, I've reviewed the patch set and the general structure looks sound. The updates to MAINTAINERS and Kconfig/Makefile are straightforward. The core focus here is adding support for new PHYs and the AX88179A family of USB ethernet devices.
The most critical areas to scrutinize are any data copied to userspace or any new data structures with potentially uninitialized fields that could be read later.
* `ax88179_get_eeprom`: This function uses `kzalloc` to allocate and zero the `eeprom_buff` before copying data to it using `memcpy`, and then passing it back to userspace, so it should be safe from uninitialized memory reads.
* `ax88179a_get_drvinfo`: This code copies information to `ethtool_drvinfo`, which is user-accessible. The `fw_version` is populated, but my first pass missed that, now I see that `kzalloc_obj` is used in `ax88179a_bind`, which initializes the `ax179_data` structure; including `fw_version`. This means `fw_version[3]` will be 0. So, it should be safe.
* `ax88179a_rx_fixup`: This one needs careful attention. It's handling incoming USB packets and allocating new skbs, copying data. The important part here is the data comes from USB, and that is copied into new skbs, so there are no uninitialized memory concerns.
* `ax88179a_tx_fixup`: Same as rx, skb manipulation. `skb_put_zero` explicitly zeroes the padding, and `skb_push` writes the TX header, so it looks like it is safe.
* `ax88179_bind`: I noted both `kzalloc` and `kzalloc_obj`, and that those calls were both zero initializing the data structures, so that is safe.
* `asix_ax88279_get_features` / `asix_ax88772D_get_features`: The `mask` variable in `asix_ax88772D_get_features` is initialized with `= {}`, so it should not introduce uninitialized memory concerns.
* `ax88179a_status`: This one has me worried. The code snippet looks incomplete. `data->phylink` is used, and it is not declared as a parameter or local variable in the code. I need to confirm the correct context of `data`. Based on the context and looking at the surrounding code in `ax88179a_devices.c`, it seems that `data` is a member of a structure, like `struct ax88179_data *data`. If this is true, then `phylink` is a valid member and this code should be safe.
Based on this analysis, I am pretty confident that the patchset is safe. The key points are the use of `kzalloc` in numerous places to ensure zero initialization and the careful handling of data that is copied to userspace and the correct initialization of the data structures.
|
| 22/3 | 2026/09/03 13:36 | tool | grepper |
0mArgs:{
"Expression": "ax88179a_status",
"PathPrefix": "drivers/net/usb/"
}Results: {
"Output": "drivers/net/usb/ax88179a_devices.c=107=static int ax88179_mdiobus_write_c45(struct mii_bus *bus, int addr, int devnum,\n--\ndrivers/net/usb/ax88179a_devices.c-117-\ndrivers/net/usb/ax88179a_devices.c:118:static void ax88179a_status(struct usbnet *dev, struct urb *urb)\ndrivers/net/usb/ax88179a_devices.c-119-{\n--\ndrivers/net/usb/ax88179a_devices.c=1176=const struct driver_info ax88179a_info = {\n--\ndrivers/net/usb/ax88179a_devices.c-1179-\t.unbind = ax88179a_unbind,\ndrivers/net/usb/ax88179a_devices.c:1180:\t.status = ax88179a_status,\ndrivers/net/usb/ax88179a_devices.c-1181-\t.reset = ax88179a_reset,\n--\ndrivers/net/usb/ax88179a_devices.c=1188=const struct driver_info ax88772d_info = {\n--\ndrivers/net/usb/ax88179a_devices.c-1191-\t.unbind = ax88179a_unbind,\ndrivers/net/usb/ax88179a_devices.c:1192:\t.status = ax88179a_status,\ndrivers/net/usb/ax88179a_devices.c-1193-\t.reset = ax88179a_reset,\n--\ndrivers/net/usb/ax88179a_devices.c=1200=const struct driver_info ax88279_info = {\n--\ndrivers/net/usb/ax88179a_devices.c-1203-\t.unbind = ax88179a_unbind,\ndrivers/net/usb/ax88179a_devices.c:1204:\t.status = ax88179a_status,\ndrivers/net/usb/ax88179a_devices.c-1205-\t.reset = ax88179a_reset,\n"
} |
| 23/3 | 2026/09/03 13:36 | llm | kmsan-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 51998 output: 45 thoughts: 30 Thoughts: Here's a summary of my mental process: **Diving into the AX88179A Driver** Okay, so I need to understand something about the AX88179A USB network driver, specifically in the kernel. I'm going to jump straight into the source code, targeting the `drivers/net/usb/ax88179a_devices.c` file. My initial focus is around line 118 – that's often where the core device initialization or configuration often happens, or perhaps a critical data structure is defined. I'm expecting this section to provide some clues. Let's see what's there. |
| 24/3 | 2026/09/03 13:36 | tool | read-file |
0mArgs:{
"File": "drivers/net/usb/ax88179a_devices.c",
"FirstLine": 115,
"LineCount": 20
}Results: {
"Contents": " 115:\t\treturn ax179a_write_mmd(dev, devnum, regnum, val);\n 116:\t}\n 117:\t\n 118:\tstatic void ax88179a_status(struct usbnet *dev, struct urb *urb)\n 119:\t{\n 120:\t\tif (urb-\u003eactual_length \u003c 8)\n 121:\t\t\treturn;\n 122:\t\n 123:\t\tphylink_mac_interrupt(data-\u003ephylink);\n 124:\t}\n 125:\t\n 126:\tstatic int ax88179a_suspend(struct usb_interface *intf, pm_message_t message)\n 127:\t{\n 128:\t\tstruct usbnet *dev = usb_get_intfdata(intf);\n 129:\t\tstruct ax88179_data *priv;\n 130:\t\tu16 tmp16;\n 131:\t\tu8 tmp8;\n 132:\t\n 133:\t\tpriv = dev-\u003edriver_priv;\n 134:\t\tax88179_set_pm_mode(dev, true);\n"
} |
| 25/3 | 2026/09/03 13:36 | llm | kmsan-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 52535 output: 46 thoughts: 486 Thoughts: **Analyzing Potential Uninitialized Variable Issues in `ax88179a_reset`** Okay, let's dive into `ax88179a_devices.c` and specifically the `ax88179a_reset` function. My initial concern, as always, is uninitialized variables, so I'm honing in on those. I see a `u8 buf[5];` declared right off the bat, which immediately grabs my attention. The use of both `tmp16 = (u16 *)buf;` and `tmp = (u8 *)buf;` for casting suggests some byte-level manipulation, which needs careful examination. Looking at the subsequent calls, it seems that `buf` is repeatedly written to through these `tmp` pointers before any of its values are read from, although its content in each step may not be obvious. Specifically, I note these patterns within the calls: * We write a single byte using `*tmp = AX_PHY_POWER;` and similar operations, with `write_cmd` being called with a size of 1. * Then we have two byte writes using `*tmp16 = 0;` and similar operations, with `write_cmd` being called with a size of 2. We also have a lot of one-byte writes to `buf[0]` and two-byte writes to `buf[0..1]`. This is standard, but the repeated writes to `buf` make me nervous. Nothing looks obviously wrong here, but that doesn't mean it's right. The repeated writes with different size values could mask a potential issue. Hold on, though. I'm seeing `ax88179_read_cmd(..., 1, 1, &tmp)`. Passing `&tmp`, which is a `u8 **`, is... intriguing. It looks like it should be the address of an `u8 *`, but that's a pointer to a pointer. I need to understand that. Maybe it's intended to read data into a temporary, but that's still an indirect addressing situation I want to clarify. Time to head over to line 1146 in the code and verify the expected functionality. This warrants a closer look to see if this double-dereference is intended. |
| 26/3 | 2026/09/03 13:36 | tool | read-file |
0mArgs:{
"File": "drivers/net/usb/ax88179a_devices.c",
"FirstLine": 1140,
"LineCount": 25
}Results: {
"Contents": "1140:\t\tif (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,\n1141:\t\t\t\t 1, 1, \u0026tmp) \u003e 0)\n1142:\t\t\tax179_data-\u003ewol_supported = WAKE_MAGIC | WAKE_PHY;\n1143:\t\n1144:\t\t/* ax88179a_reset() may also be called from resume context, phylink\n1145:\t\t * is already started, then.\n1146:\t\t */\n1147:\t\tif (!ax179_data-\u003ein_pm)\n1148:\t\t\tphylink_start(ax179_data-\u003ephylink);\n1149:\t\n1150:\t\tusbnet_link_change(dev, 0, 0);\n1151:\t\n1152:\t\treturn 0;\n1153:\t}\n1154:\t\n1155:\tstatic int ax88179a_stop(struct usbnet *dev)\n1156:\t{\n1157:\t\tstruct ax88179_data *ax179_data = dev-\u003edriver_priv;\n1158:\t\tu16 reg16;\n1159:\t\tu8 reg8;\n1160:\t\n1161:\t\tax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026reg16);\n1162:\t\treg16 \u0026= ~AX_MEDIUM_RECEIVE_EN;\n1163:\t\tax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, \u0026reg16);\n1164:\t\n"
} |
| 27/3 | 2026/09/03 13:36 | llm | kmsan-evaluator |
0mModel:gemini-3.7-flash Args: null Results: null Tokens: input: 54033 output: 320 thoughts: 1470 Thoughts: **KMSAN Assessment: Review of Potential Uninitialized Memory Accesses** Okay, so I've been digging into this code, specifically focusing on potential uninitialized memory reads that might warrant KMSAN (Kernel Memory Sanitizer). The initial concern was with `ax88179_read_cmd` and how it handles a `u8 *tmp = (u8 *)buf;` scenario, and more specifically how the address of `tmp` is passed to the function. However, the function writes a single byte to the address pointed to, which is a stack variable, so this isn't an uninitialized memory read as the memory is initialized by the write. It's just written but not used again. I expanded the search to the entire patch to identify anything that might lead to an information leak or other memory safety issues. I went through the codebase methodically, examining several key functions: 1. `ax88179_lib.c`: The `ax88179_read_cmd` family functions initialize `buf` to 0 when the data size is 2 or 4, therefore it is not an uninitialized memory read. 2. `ax88179_get_eeprom`: Uses `kzalloc`, so no uninitialized memory. 3. `ax88179_set_eeprom`: Uses `kmalloc_array`, but carefully handles reads from the EEPROM based on offset and length, and `memcpy` fills remaining parts with provided data from userspace. Again, no uninitialized memory access. 4. `asix_ax88279_read_status`: `val` is properly assigned from a read operation (`phy_read`), so there is no uninitialized memory. 5. `asix_ax88279_config_aneg`: Initializes the `adv_2500` boolean variable, so again, there is no uninitialized memory. 6. `ax88179a_tx_fixup`: `tci` is initialized, `skb` uses `skb_put_zero` to zero-out padding, so there is no uninitialized memory. 7. `ax88179a_rx_fixup`: This is more complex, handling packet headers. However, I confirmed it performs a rigorous set of checks: bounds on packet length, header offset, allocation of `ax_skb` uses `netdev_alloc_skb_ip_align` (which should zero allocate), and copies bytes from the packet payload. No uninitialized memory issues. 8. Structure allocations: `ax88179_bind` and `ax88179a_bind` use `kzalloc` or `kzalloc_obj`, which guarantees zero-initialization. Finally, I considered the four criteria for a `NeedsKMSAN` tag, as this is the deciding factor: 1. Kernel structures sent to user space with potential for uninitialized fields. **Not applicable** – ethtool calls use helpers, or `kzalloc` buffers. 2. Conditional logic based on potentially uninitialized variables. **Not applicable** – no such cases. 3. Allocation of complex data structures with later uninitialized reads. **Not applicable** – all allocations are `kzalloc`-ed. 4. Bounds checks that could expose uninitialized data. **Not applicable** – all bounds checked. Based on this comprehensive review, I'm confident that this code doesn't have any obvious uninitialized memory bugs or information leaks that would necessitate KMSAN. Standard KASAN and other bug detectors should be sufficient for ensuring this driver's safety and reliability. So I will label the patch appropriately. |
| 28/3 | 2026/09/03 13:36 | tool | set-results |
0mArgs:{
"KMSANReasoning": "The patch series adds support for ASIX AX88179A, AX88772D, and AX88279 USB Ethernet adapters and their internal PHYs, refactoring common functionality into a shared library.\n\nA KMSAN fuzzing session is not needed for the following reasons:\n1. All dynamically allocated kernel structures and buffers (such as `struct ax88179_data` via `kzalloc`/`kzalloc_obj`, and EEPROM query buffers via `kzalloc`) are explicitly zero-initialized upon allocation.\n2. In the packet transmission path (`ax88179a_tx_fixup`), SKB padding is explicitly cleared with `skb_put_zero`, avoiding info-leaks of kernel stack/heap memory onto the wire.\n3. In the packet reception path (`ax88179a_rx_fixup`), strict length, descriptor offset, and packet count validations prevent out-of-bounds reads and ensure only valid received payload bytes are copied to returned SKBs.\n4. User-visible data paths (ethtool ops, phylink callbacks) operate on fully initialized structures or delegate to standard kernel helpers.\n5. Any potential memory-safety risks in the changes (e.g. buffer parsing or pointer handling) fall under spatial safety or life-cycle management, which are covered by standard KASAN.",
"NeedsKMSAN": false
}Results: {
"KMSANReasoning": "The patch series adds support for ASIX AX88179A, AX88772D, and AX88279 USB Ethernet adapters and their internal PHYs, refactoring common functionality into a shared library.\n\nA KMSAN fuzzing session is not needed for the following reasons:\n1. All dynamically allocated kernel structures and buffers (such as `struct ax88179_data` via `kzalloc`/`kzalloc_obj`, and EEPROM query buffers via `kzalloc`) are explicitly zero-initialized upon allocation.\n2. In the packet transmission path (`ax88179a_tx_fixup`), SKB padding is explicitly cleared with `skb_put_zero`, avoiding info-leaks of kernel stack/heap memory onto the wire.\n3. In the packet reception path (`ax88179a_rx_fixup`), strict length, descriptor offset, and packet count validations prevent out-of-bounds reads and ensure only valid received payload bytes are copied to returned SKBs.\n4. User-visible data paths (ethtool ops, phylink callbacks) operate on fully initialized structures or delegate to standard kernel helpers.\n5. Any potential memory-safety risks in the changes (e.g. buffer parsing or pointer handling) fall under spatial safety or life-cycle management, which are covered by standard KASAN.",
"NeedsKMSAN": false
} |
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| Total Calls | Total Duration (Seconds) | Avg Duration (Seconds) |
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