Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - BPF:
      - add syscall program type and libbpf support for generating
        instructions and bindings for in-kernel BPF loaders (BPF loaders
        for BPF), this is a stepping stone for signed BPF programs
      - infrastructure to migrate TCP child sockets from one listener to
        another in the same reuseport group/map to improve flexibility
        of service hand-off/restart
      - add broadcast support to XDP redirect

   - allow bypass of the lockless qdisc to improving performance (for
     pktgen: +23% with one thread, +44% with 2 threads)

   - add a simpler version of "DO_ONCE()" which does not require jump
     labels, intended for slow-path usage

   - virtio/vsock: introduce SOCK_SEQPACKET support

   - add getsocketopt to retrieve netns cookie

   - ip: treat lowest address of a IPv4 subnet as ordinary unicast
     address allowing reclaiming of precious IPv4 addresses

   - ipv6: use prandom_u32() for ID generation

   - ip: add support for more flexible field selection for hashing
     across multi-path routes (w/ offload to mlxsw)

   - icmp: add support for extended RFC 8335 PROBE (ping)

   - seg6: add support for SRv6 End.DT46 behavior

   - mptcp:
      - DSS checksum support (RFC 8684) to detect middlebox meddling
      - support Connection-time 'C' flag
      - time stamping support

   - sctp: packetization Layer Path MTU Discovery (RFC 8899)

   - xfrm: speed up state addition with seq set

   - WiFi:
      - hidden AP discovery on 6 GHz and other HE 6 GHz improvements
      - aggregation handling improvements for some drivers
      - minstrel improvements for no-ack frames
      - deferred rate control for TXQs to improve reaction times
      - switch from round robin to virtual time-based airtime scheduler

   - add trace points:
      - tcp checksum errors
      - openvswitch - action execution, upcalls
      - socket errors via sk_error_report

  Device APIs:

   - devlink: add rate API for hierarchical control of max egress rate
     of virtual devices (VFs, SFs etc.)

   - don't require RCU read lock to be held around BPF hooks in NAPI
     context

   - page_pool: generic buffer recycling

  New hardware/drivers:

   - mobile:
      - iosm: PCIe Driver for Intel M.2 Modem
      - support for Qualcomm MSM8998 (ipa)

   - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices

   - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches

   - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)

   - NXP SJA1110 Automotive Ethernet 10-port switch

   - Qualcomm QCA8327 switch support (qca8k)

   - Mikrotik 10/25G NIC (atl1c)

  Driver changes:

   - ACPI support for some MDIO, MAC and PHY devices from Marvell and
     NXP (our first foray into MAC/PHY description via ACPI)

   - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx

   - Mellanox/Nvidia NIC (mlx5)
      - NIC VF offload of L2 bridging
      - support IRQ distribution to Sub-functions

   - Marvell (prestera):
      - add flower and match all
      - devlink trap
      - link aggregation

   - Netronome (nfp): connection tracking offload

   - Intel 1GE (igc): add AF_XDP support

   - Marvell DPU (octeontx2): ingress ratelimit offload

   - Google vNIC (gve): new ring/descriptor format support

   - Qualcomm mobile (rmnet & ipa): inline checksum offload support

   - MediaTek WiFi (mt76)
      - mt7915 MSI support
      - mt7915 Tx status reporting
      - mt7915 thermal sensors support
      - mt7921 decapsulation offload
      - mt7921 enable runtime pm and deep sleep

   - Realtek WiFi (rtw88)
      - beacon filter support
      - Tx antenna path diversity support
      - firmware crash information via devcoredump

   - Qualcomm WiFi (wcn36xx)
      - Wake-on-WLAN support with magic packets and GTK rekeying

   - Micrel PHY (ksz886x/ksz8081): add cable test support"

* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
  tcp: change ICSK_CA_PRIV_SIZE definition
  tcp_yeah: check struct yeah size at compile time
  gve: DQO: Fix off by one in gve_rx_dqo()
  stmmac: intel: set PCI_D3hot in suspend
  stmmac: intel: Enable PHY WOL option in EHL
  net: stmmac: option to enable PHY WOL with PMT enabled
  net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
  net: use netdev_info in ndo_dflt_fdb_{add,del}
  ptp: Set lookup cookie when creating a PTP PPS source.
  net: sock: add trace for socket errors
  net: sock: introduce sk_error_report
  net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
  net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
  net: dsa: include fdb entries pointing to bridge in the host fdb list
  net: dsa: include bridge addresses which are local in the host fdb list
  net: dsa: sync static FDB entries on foreign interfaces to hardware
  net: dsa: install the host MDB and FDB entries in the master's RX filter
  net: dsa: reference count the FDB addresses at the cross-chip notifier level
  net: dsa: introduce a separate cross-chip notifier type for host FDBs
  net: dsa: reference count the MDB entries at the cross-chip notifier level
  ...

1 files changed, 124 insertions, 78 deletions

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 19a8fafb8f04..aec97b021a73 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -262,7 +262,10 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 	dev->mii.mdio_write = asix_mdio_write;
 	dev->mii.phy_id_mask = 0x3f;
 	dev->mii.reg_num_mask = 0x1f;
-	dev->mii.phy_id = asix_get_phy_addr(dev);
+
+	dev->mii.phy_id = asix_read_phy_addr(dev, true);
+	if (dev->mii.phy_id < 0)
+		return dev->mii.phy_id;
 
 	dev->net->netdev_ops = &ax88172_netdev_ops;
 	dev->net->ethtool_ops = &ax88172_ethtool_ops;
@@ -280,9 +283,29 @@ out:
 	return ret;
 }
 
+static void ax88772_ethtool_get_strings(struct net_device *netdev, u32 sset,
+					u8 *data)
+{
+	switch (sset) {
+	case ETH_SS_TEST:
+		net_selftest_get_strings(data);
+		break;
+	}
+}
+
+static int ax88772_ethtool_get_sset_count(struct net_device *ndev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_TEST:
+		return net_selftest_get_count();
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 static const struct ethtool_ops ax88772_ethtool_ops = {
 	.get_drvinfo		= asix_get_drvinfo,
-	.get_link		= asix_get_link,
+	.get_link		= usbnet_get_link,
 	.get_msglevel		= usbnet_get_msglevel,
 	.set_msglevel		= usbnet_set_msglevel,
 	.get_wol		= asix_get_wol,
@@ -290,37 +313,18 @@ static const struct ethtool_ops ax88772_ethtool_ops = {
 	.get_eeprom_len		= asix_get_eeprom_len,
 	.get_eeprom		= asix_get_eeprom,
 	.set_eeprom		= asix_set_eeprom,
-	.nway_reset		= usbnet_nway_reset,
-	.get_link_ksettings	= usbnet_get_link_ksettings_mii,
-	.set_link_ksettings	= usbnet_set_link_ksettings_mii,
+	.nway_reset		= phy_ethtool_nway_reset,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.self_test		= net_selftest,
+	.get_strings		= ax88772_ethtool_get_strings,
+	.get_sset_count		= ax88772_ethtool_get_sset_count,
 };
 
-static int ax88772_link_reset(struct usbnet *dev)
-{
-	u16 mode;
-	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
-
-	mii_check_media(&dev->mii, 1, 1);
-	mii_ethtool_gset(&dev->mii, &ecmd);
-	mode = AX88772_MEDIUM_DEFAULT;
-
-	if (ethtool_cmd_speed(&ecmd) != SPEED_100)
-		mode &= ~AX_MEDIUM_PS;
-
-	if (ecmd.duplex != DUPLEX_FULL)
-		mode &= ~AX_MEDIUM_FD;
-
-	netdev_dbg(dev->net, "ax88772_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
-		   ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
-
-	asix_write_medium_mode(dev, mode, 0);
-
-	return 0;
-}
-
 static int ax88772_reset(struct usbnet *dev)
 {
 	struct asix_data *data = (struct asix_data *)&dev->data;
+	struct asix_common_private *priv = dev->driver_priv;
 	int ret;
 
 	/* Rewrite MAC address */
@@ -339,6 +343,8 @@ static int ax88772_reset(struct usbnet *dev)
 	if (ret < 0)
 		goto out;
 
+	phy_start(priv->phydev);
+
 	return 0;
 
 out:
@@ -583,7 +589,7 @@ static const struct net_device_ops ax88772_netdev_ops = {
 	.ndo_get_stats64	= dev_get_tstats64,
 	.ndo_set_mac_address 	= asix_set_mac_address,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_do_ioctl		= asix_ioctl,
+	.ndo_do_ioctl		= phy_do_ioctl_running,
 	.ndo_set_rx_mode        = asix_set_multicast,
 };
 
@@ -592,6 +598,9 @@ static void ax88772_suspend(struct usbnet *dev)
 	struct asix_common_private *priv = dev->driver_priv;
 	u16 medium;
 
+	if (netif_running(dev->net))
+		phy_stop(priv->phydev);
+
 	/* Stop MAC operation */
 	medium = asix_read_medium_status(dev, 1);
 	medium &= ~AX_MEDIUM_RE;
@@ -599,14 +608,6 @@ static void ax88772_suspend(struct usbnet *dev)
 
 	netdev_dbg(dev->net, "ax88772_suspend: medium=0x%04x\n",
 		   asix_read_medium_status(dev, 1));
-
-	/* Preserve BMCR for restoring */
-	priv->presvd_phy_bmcr =
-		asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_BMCR);
-
-	/* Preserve ANAR for restoring */
-	priv->presvd_phy_advertise =
-		asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE);
 }
 
 static int asix_suspend(struct usb_interface *intf, pm_message_t message)
@@ -620,39 +621,22 @@ static int asix_suspend(struct usb_interface *intf, pm_message_t message)
 	return usbnet_suspend(intf, message);
 }
 
-static void ax88772_restore_phy(struct usbnet *dev)
-{
-	struct asix_common_private *priv = dev->driver_priv;
-
-	if (priv->presvd_phy_advertise) {
-		/* Restore Advertisement control reg */
-		asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE,
-				     priv->presvd_phy_advertise);
-
-		/* Restore BMCR */
-		if (priv->presvd_phy_bmcr & BMCR_ANENABLE)
-			priv->presvd_phy_bmcr |= BMCR_ANRESTART;
-
-		asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_BMCR,
-				     priv->presvd_phy_bmcr);
-
-		priv->presvd_phy_advertise = 0;
-		priv->presvd_phy_bmcr = 0;
-	}
-}
-
 static void ax88772_resume(struct usbnet *dev)
 {
+	struct asix_common_private *priv = dev->driver_priv;
 	int i;
 
 	for (i = 0; i < 3; i++)
 		if (!ax88772_hw_reset(dev, 1))
 			break;
-	ax88772_restore_phy(dev);
+
+	if (netif_running(dev->net))
+		phy_start(priv->phydev);
 }
 
 static void ax88772a_resume(struct usbnet *dev)
 {
+	struct asix_common_private *priv = dev->driver_priv;
 	int i;
 
 	for (i = 0; i < 3; i++) {
@@ -660,7 +644,8 @@ static void ax88772a_resume(struct usbnet *dev)
 			break;
 	}
 
-	ax88772_restore_phy(dev);
+	if (netif_running(dev->net))
+		phy_start(priv->phydev);
 }
 
 static int asix_resume(struct usb_interface *intf)
@@ -674,12 +659,61 @@ static int asix_resume(struct usb_interface *intf)
 	return usbnet_resume(intf);
 }
 
+static int ax88772_init_mdio(struct usbnet *dev)
+{
+	struct asix_common_private *priv = dev->driver_priv;
+
+	priv->mdio = devm_mdiobus_alloc(&dev->udev->dev);
+	if (!priv->mdio)
+		return -ENOMEM;
+
+	priv->mdio->priv = dev;
+	priv->mdio->read = &asix_mdio_bus_read;
+	priv->mdio->write = &asix_mdio_bus_write;
+	priv->mdio->name = "Asix MDIO Bus";
+	/* mii bus name is usb-<usb bus number>-<usb device number> */
+	snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+		 dev->udev->bus->busnum, dev->udev->devnum);
+
+	return devm_mdiobus_register(&dev->udev->dev, priv->mdio);
+}
+
+static int ax88772_init_phy(struct usbnet *dev)
+{
+	struct asix_common_private *priv = dev->driver_priv;
+	int ret;
+
+	ret = asix_read_phy_addr(dev, true);
+	if (ret < 0)
+		return ret;
+
+	priv->phy_addr = ret;
+
+	snprintf(priv->phy_name, sizeof(priv->phy_name), PHY_ID_FMT,
+		 priv->mdio->id, priv->phy_addr);
+
+	priv->phydev = phy_connect(dev->net, priv->phy_name, &asix_adjust_link,
+				   PHY_INTERFACE_MODE_INTERNAL);
+	if (IS_ERR(priv->phydev)) {
+		netdev_err(dev->net, "Could not connect to PHY device %s\n",
+			   priv->phy_name);
+		ret = PTR_ERR(priv->phydev);
+		return ret;
+	}
+
+	priv->phydev->mac_managed_pm = 1;
+
+	phy_attached_info(priv->phydev);
+
+	return 0;
+}
+
 static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 {
-	int ret, i;
 	u8 buf[ETH_ALEN] = {0}, chipcode = 0;
-	u32 phyid;
 	struct asix_common_private *priv;
+	int ret, i;
+	u32 phyid;
 
 	usbnet_get_endpoints(dev, intf);
 
@@ -711,14 +745,6 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	asix_set_netdev_dev_addr(dev, buf);
 
-	/* Initialize MII structure */
-	dev->mii.dev = dev->net;
-	dev->mii.mdio_read = asix_mdio_read;
-	dev->mii.mdio_write = asix_mdio_write;
-	dev->mii.phy_id_mask = 0x1f;
-	dev->mii.reg_num_mask = 0x1f;
-	dev->mii.phy_id = asix_get_phy_addr(dev);
-
 	dev->net->netdev_ops = &ax88772_netdev_ops;
 	dev->net->ethtool_ops = &ax88772_ethtool_ops;
 	dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
@@ -746,11 +772,11 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 		dev->rx_urb_size = 2048;
 	}
 
-	dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
-	if (!dev->driver_priv)
+	priv = devm_kzalloc(&dev->udev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
 		return -ENOMEM;
 
-	priv = dev->driver_priv;
+	dev->driver_priv = priv;
 
 	priv->presvd_phy_bmcr = 0;
 	priv->presvd_phy_advertise = 0;
@@ -762,13 +788,32 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 		priv->suspend = ax88772_suspend;
 	}
 
+	ret = ax88772_init_mdio(dev);
+	if (ret)
+		return ret;
+
+	return ax88772_init_phy(dev);
+}
+
+static int ax88772_stop(struct usbnet *dev)
+{
+	struct asix_common_private *priv = dev->driver_priv;
+
+	/* On unplugged USB, we will get MDIO communication errors and the
+	 * PHY will be set in to PHY_HALTED state.
+	 */
+	if (priv->phydev->state != PHY_HALTED)
+		phy_stop(priv->phydev);
+
 	return 0;
 }
 
 static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
 {
+	struct asix_common_private *priv = dev->driver_priv;
+
+	phy_disconnect(priv->phydev);
 	asix_rx_fixup_common_free(dev->driver_priv);
-	kfree(dev->driver_priv);
 }
 
 static const struct ethtool_ops ax88178_ethtool_ops = {
@@ -1081,7 +1126,10 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 	dev->mii.phy_id_mask = 0x1f;
 	dev->mii.reg_num_mask = 0xff;
 	dev->mii.supports_gmii = 1;
-	dev->mii.phy_id = asix_get_phy_addr(dev);
+
+	dev->mii.phy_id = asix_read_phy_addr(dev, true);
+	if (dev->mii.phy_id < 0)
+		return dev->mii.phy_id;
 
 	dev->net->netdev_ops = &ax88178_netdev_ops;
 	dev->net->ethtool_ops = &ax88178_ethtool_ops;
@@ -1153,8 +1201,8 @@ static const struct driver_info ax88772_info = {
 	.bind = ax88772_bind,
 	.unbind = ax88772_unbind,
 	.status = asix_status,
-	.link_reset = ax88772_link_reset,
 	.reset = ax88772_reset,
+	.stop = ax88772_stop,
 	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
 	.rx_fixup = asix_rx_fixup_common,
 	.tx_fixup = asix_tx_fixup,
@@ -1165,7 +1213,6 @@ static const struct driver_info ax88772b_info = {
 	.bind = ax88772_bind,
 	.unbind = ax88772_unbind,
 	.status = asix_status,
-	.link_reset = ax88772_link_reset,
 	.reset = ax88772_reset,
 	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 	         FLAG_MULTI_PACKET,
@@ -1201,7 +1248,6 @@ static const struct driver_info hg20f9_info = {
 	.bind = ax88772_bind,
 	.unbind = ax88772_unbind,
 	.status = asix_status,
-	.link_reset = ax88772_link_reset,
 	.reset = ax88772_reset,
 	.flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
 	         FLAG_MULTI_PACKET,