Merge tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Continue Netlink conversions to per-namespace RTNL lock
     (IPv4 routing, routing rules, routing next hops, ARP ioctls)

   - Continue extending the use of netdev instance locks. As a driver
     opt-in protect queue operations and (in due course) ethtool
     operations with the instance lock and not RTNL lock.

   - Support collecting TCP timestamps (data submitted, sent, acked) in
     BPF, allowing for transparent (to the application) and lower
     overhead tracking of TCP RPC performance.

   - Tweak existing networking Rx zero-copy infra to support zero-copy
     Rx via io_uring.

   - Optimize MPTCP performance in single subflow mode by 29%.

   - Enable GRO on packets which went thru XDP CPU redirect (were queued
     for processing on a different CPU). Improving TCP stream
     performance up to 2x.

   - Improve performance of contended connect() by 200% by searching for
     an available 4-tuple under RCU rather than a spin lock. Bring an
     additional 229% improvement by tweaking hash distribution.

   - Avoid unconditionally touching sk_tsflags on RX, improving
     performance under UDP flood by as much as 10%.

   - Avoid skb_clone() dance in ping_rcv() to improve performance under
     ping flood.

   - Avoid FIB lookup in netfilter if socket is available, 20% perf win.

   - Rework network device creation (in-kernel) API to more clearly
     identify network namespaces and their roles. There are up to 4
     namespace roles but we used to have just 2 netns pointer arguments,
     interpreted differently based on context.

   - Use sysfs_break_active_protection() instead of trylock to avoid
     deadlocks between unregistering objects and sysfs access.

   - Add a new sysctl and sockopt for capping max retransmit timeout in
     TCP.

   - Support masking port and DSCP in routing rule matches.

   - Support dumping IPv4 multicast addresses with RTM_GETMULTICAST.

   - Support specifying at what time packet should be sent on AF_XDP
     sockets.

   - Expose TCP ULP diagnostic info (for TLS and MPTCP) to non-admin
     users.

   - Add Netlink YAML spec for WiFi (nl80211) and conntrack.

   - Introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() for symbols
     which only need to be exported when IPv6 support is built as a
     module.

   - Age FDB entries based on Rx not Tx traffic in VxLAN, similar to
     normal bridging.

   - Allow users to specify source port range for GENEVE tunnels.

   - netconsole: allow attaching kernel release, CPU ID and task name to
     messages as metadata

  Driver API:

   - Continue rework / fixing of Energy Efficient Ethernet (EEE) across
     the SW layers. Delegate the responsibilities to phylink where
     possible. Improve its handling in phylib.

   - Support symmetric OR-XOR RSS hashing algorithm.

   - Support tracking and preserving IRQ affinity by NAPI itself.

   - Support loopback mode speed selection for interface selftests.

  Device drivers:

   - Remove the IBM LCS driver for s390

   - Remove the sb1000 cable modem driver

   - Add support for SFP module access over SMBus

   - Add MCTP transport driver for MCTP-over-USB

   - Enable XDP metadata support in multiple drivers

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - add PCIe TLP Processing Hints (TPH) support for new AMD
           platforms
         - support dumping RoCE queue state for debug
         - opt into instance locking
      - Intel (100G, ice, idpf):
         - ice: rework MSI-X IRQ management and distribution
         - ice: support for E830 devices
         - iavf: add support for Rx timestamping
         - iavf: opt into instance locking
      - nVidia/Mellanox:
         - mlx4: use page pool memory allocator for Rx
         - mlx5: support for one PTP device per hardware clock
         - mlx5: support for 200Gbps per-lane link modes
         - mlx5: move IPSec policy check after decryption
      - AMD/Solarflare:
         - support FW flashing via devlink
      - Cisco (enic):
         - use page pool memory allocator for Rx
         - enable 32, 64 byte CQEs
         - get max rx/tx ring size from the device
      - Meta (fbnic):
         - support flow steering and RSS configuration
         - report queue stats
         - support TCP segmentation
         - support IRQ coalescing
         - support ring size configuration
      - Marvell/Cavium:
         - support AF_XDP
      - Wangxun:
         - support for PTP clock and timestamping
      - Huawei (hibmcge):
         - checksum offload
         - add more statistics

   - Ethernet virtual:
      - VirtIO net:
         - aggressively suppress Tx completions, improve perf by 96%
           with 1 CPU and 55% with 2 CPUs
         - expose NAPI to IRQ mapping and persist NAPI settings
      - Google (gve):
         - support XDP in DQO RDA Queue Format
         - opt into instance locking
      - Microsoft vNIC:
         - support BIG TCP

   - Ethernet NICs consumer, and embedded:
      - Synopsys (stmmac):
         - cleanup Tx and Tx clock setting and other link-focused
           cleanups
         - enable SGMII and 2500BASEX mode switching for Intel platforms
         - support Sophgo SG2044
      - Broadcom switches (b53):
         - support for BCM53101
      - TI:
         - iep: add perout configuration support
         - icssg: support XDP
      - Cadence (macb):
         - implement BQL
      - Xilinx (axinet):
         - support dynamic IRQ moderation and changing coalescing at
           runtime
         - implement BQL
         - report standard stats
      - MediaTek:
         - support phylink managed EEE
      - Intel:
         - igc: don't restart the interface on every XDP program change
      - RealTek (r8169):
         - support reading registers of internal PHYs directly
         - increase max jumbo packet size on RTL8125/RTL8126
      - Airoha:
         - support for RISC-V NPU packet processing unit
         - enable scatter-gather and support MTU up to 9kB
      - Tehuti (tn40xx):
         - support cards with TN4010 MAC and an Aquantia AQR105 PHY

   - Ethernet PHYs:
      - support for TJA1102S, TJA1121
      - dp83tg720: add randomized polling intervals for link detection
      - dp83822: support changing the transmit amplitude voltage
      - support for LEDs on 88q2xxx

   - CAN:
      - canxl: support Remote Request Substitution bit access
      - flexcan: add S32G2/S32G3 SoC

   - WiFi:
      - remove cooked monitor support
      - strict mode for better AP testing
      - basic EPCS support
      - OMI RX bandwidth reduction support
      - batman-adv: add support for jumbo frames

   - WiFi drivers:
      - RealTek (rtw88):
         - support RTL8814AE and RTL8814AU
      - RealTek (rtw89):
         - switch using wiphy_lock and wiphy_work
         - add BB context to manipulate two PHY as preparation of MLO
         - improve BT-coexistence mechanism to play A2DP smoothly
      - Intel (iwlwifi):
         - add new iwlmld sub-driver for latest HW/FW combinations
      - MediaTek (mt76):
         - preparation for mt7996 Multi-Link Operation (MLO) support
      - Qualcomm/Atheros (ath12k):
         - continued work on MLO
      - Silabs (wfx):
         - Wake-on-WLAN support

   - Bluetooth:
      - add support for skb TX SND/COMPLETION timestamping
      - hci_core: enable buffer flow control for SCO/eSCO
      - coredump: log devcd dumps into the monitor

   - Bluetooth drivers:
      - intel: add support to configure TX power
      - nxp: handle bootloader error during cmd5 and cmd7"

* tag 'net-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1681 commits)
  unix: fix up for "apparmor: add fine grained af_unix mediation"
  mctp: Fix incorrect tx flow invalidation condition in mctp-i2c
  net: usb: asix: ax88772: Increase phy_name size
  net: phy: Introduce PHY_ID_SIZE — minimum size for PHY ID string
  net: libwx: fix Tx L4 checksum
  net: libwx: fix Tx descriptor content for some tunnel packets
  atm: Fix NULL pointer dereference
  net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards
  net: tn40xx: prepare tn40xx driver to find phy of the TN9510 card
  net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus
  net: phy: aquantia: add essential functions to aqr105 driver
  net: phy: aquantia: search for firmware-name in fwnode
  net: phy: aquantia: add probe function to aqr105 for firmware loading
  net: phy: Add swnode support to mdiobus_scan
  gve: add XDP DROP and PASS support for DQ
  gve: update XDP allocation path support RX buffer posting
  gve: merge packet buffer size fields
  gve: update GQ RX to use buf_size
  gve: introduce config-based allocation for XDP
  gve: remove xdp_xsk_done and xdp_xsk_wakeup statistics
  ...

1 files changed, 41 insertions, 46 deletions

diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index 4c2098ac9d72..fff13a8b48f1 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -10,6 +10,7 @@
 #include <linux/wireless.h>
 #include <linux/if_bridge.h>
 #include <net/dsa_stubs.h>
+#include <net/netdev_lock.h>
 #include <net/wext.h>
 
 #include "dev.h"
@@ -110,7 +111,7 @@ static int dev_getifmap(struct net_device *dev, struct ifreq *ifr)
 	return 0;
 }
 
-static int dev_setifmap(struct net_device *dev, struct ifreq *ifr)
+static int netif_setifmap(struct net_device *dev, struct ifreq *ifr)
 {
 	struct compat_ifmap *cifmap = (struct compat_ifmap *)&ifr->ifr_map;
 
@@ -240,20 +241,6 @@ int net_hwtstamp_validate(const struct kernel_hwtstamp_config *cfg)
 	return 0;
 }
 
-static int dev_eth_ioctl(struct net_device *dev,
-			 struct ifreq *ifr, unsigned int cmd)
-{
-	const struct net_device_ops *ops = dev->netdev_ops;
-
-	if (!ops->ndo_eth_ioctl)
-		return -EOPNOTSUPP;
-
-	if (!netif_device_present(dev))
-		return -ENODEV;
-
-	return ops->ndo_eth_ioctl(dev, ifr, cmd);
-}
-
 /**
  * dev_get_hwtstamp_phylib() - Get hardware timestamping settings of NIC
  *	or of attached phylib PHY
@@ -305,7 +292,9 @@ static int dev_get_hwtstamp(struct net_device *dev, struct ifreq *ifr)
 		return -ENODEV;
 
 	kernel_cfg.ifr = ifr;
+	netdev_lock_ops(dev);
 	err = dev_get_hwtstamp_phylib(dev, &kernel_cfg);
+	netdev_unlock_ops(dev);
 	if (err)
 		return err;
 
@@ -429,7 +418,9 @@ static int dev_set_hwtstamp(struct net_device *dev, struct ifreq *ifr)
 	if (!netif_device_present(dev))
 		return -ENODEV;
 
+	netdev_lock_ops(dev);
 	err = dev_set_hwtstamp_phylib(dev, &kernel_cfg, &extack);
+	netdev_unlock_ops(dev);
 	if (err)
 		return err;
 
@@ -504,10 +495,14 @@ static int dev_siocbond(struct net_device *dev,
 	const struct net_device_ops *ops = dev->netdev_ops;
 
 	if (ops->ndo_siocbond) {
+		int ret = -ENODEV;
+
+		netdev_lock_ops(dev);
 		if (netif_device_present(dev))
-			return ops->ndo_siocbond(dev, ifr, cmd);
-		else
-			return -ENODEV;
+			ret = ops->ndo_siocbond(dev, ifr, cmd);
+		netdev_unlock_ops(dev);
+
+		return ret;
 	}
 
 	return -EOPNOTSUPP;
@@ -519,10 +514,14 @@ static int dev_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
 	const struct net_device_ops *ops = dev->netdev_ops;
 
 	if (ops->ndo_siocdevprivate) {
+		int ret = -ENODEV;
+
+		netdev_lock_ops(dev);
 		if (netif_device_present(dev))
-			return ops->ndo_siocdevprivate(dev, ifr, data, cmd);
-		else
-			return -ENODEV;
+			ret = ops->ndo_siocdevprivate(dev, ifr, data, cmd);
+		netdev_unlock_ops(dev);
+
+		return ret;
 	}
 
 	return -EOPNOTSUPP;
@@ -533,10 +532,14 @@ static int dev_siocwandev(struct net_device *dev, struct if_settings *ifs)
 	const struct net_device_ops *ops = dev->netdev_ops;
 
 	if (ops->ndo_siocwandev) {
+		int ret = -ENODEV;
+
+		netdev_lock_ops(dev);
 		if (netif_device_present(dev))
-			return ops->ndo_siocwandev(dev, ifs);
-		else
-			return -ENODEV;
+			ret = ops->ndo_siocwandev(dev, ifs);
+		netdev_unlock_ops(dev);
+
+		return ret;
 	}
 
 	return -EOPNOTSUPP;
@@ -551,7 +554,6 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
 	int err;
 	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
 	const struct net_device_ops *ops;
-	netdevice_tracker dev_tracker;
 
 	if (!dev)
 		return -ENODEV;
@@ -580,11 +582,16 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
 		memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,
 		       min(sizeof(ifr->ifr_hwaddr.sa_data_min),
 			   (size_t)dev->addr_len));
+		netdev_lock_ops(dev);
 		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+		netdev_unlock_ops(dev);
 		return 0;
 
 	case SIOCSIFMAP:
-		return dev_setifmap(dev, ifr);
+		netdev_lock_ops(dev);
+		err = netif_setifmap(dev, ifr);
+		netdev_unlock_ops(dev);
+		return err;
 
 	case SIOCADDMULTI:
 		if (!ops->ndo_set_rx_mode ||
@@ -592,7 +599,10 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
 			return -EINVAL;
 		if (!netif_device_present(dev))
 			return -ENODEV;
-		return dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data);
+		netdev_lock_ops(dev);
+		err = dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data);
+		netdev_unlock_ops(dev);
+		return err;
 
 	case SIOCDELMULTI:
 		if (!ops->ndo_set_rx_mode ||
@@ -600,7 +610,10 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
 			return -EINVAL;
 		if (!netif_device_present(dev))
 			return -ENODEV;
-		return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
+		netdev_lock_ops(dev);
+		err = dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
+		netdev_unlock_ops(dev);
+		return err;
 
 	case SIOCSIFTXQLEN:
 		if (ifr->ifr_qlen < 0)
@@ -614,22 +627,6 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
 	case SIOCWANDEV:
 		return dev_siocwandev(dev, &ifr->ifr_settings);
 
-	case SIOCBRADDIF:
-	case SIOCBRDELIF:
-		if (!netif_device_present(dev))
-			return -ENODEV;
-		if (!netif_is_bridge_master(dev))
-			return -EOPNOTSUPP;
-
-		netdev_hold(dev, &dev_tracker, GFP_KERNEL);
-		rtnl_net_unlock(net);
-
-		err = br_ioctl_call(net, netdev_priv(dev), cmd, ifr, NULL);
-
-		netdev_put(dev, &dev_tracker);
-		rtnl_net_lock(net);
-		return err;
-
 	case SIOCDEVPRIVATE ... SIOCDEVPRIVATE + 15:
 		return dev_siocdevprivate(dev, ifr, data, cmd);
 
@@ -812,8 +809,6 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr,
 	case SIOCBONDRELEASE:
 	case SIOCBONDSETHWADDR:
 	case SIOCBONDCHANGEACTIVE:
-	case SIOCBRADDIF:
-	case SIOCBRDELIF:
 	case SIOCSHWTSTAMP:
 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;