Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 357 insertions, 0 deletions

diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
new file mode 100644
index 000000000..9e8d4a6fb
--- /dev/null
+++ b/fs/sysv/inode.c
@@ -0,0 +1,357 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/fs/sysv/inode.c
+ *
+ *  minix/inode.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  xenix/inode.c
+ *  Copyright (C) 1992  Doug Evans
+ *
+ *  coh/inode.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Paul B. Monday
+ *
+ *  sysv/inode.c
+ *  Copyright (C) 1993  Bruno Haible
+ *  Copyright (C) 1997, 1998  Krzysztof G. Baranowski
+ *
+ *  This file contains code for allocating/freeing inodes and for read/writing
+ *  the superblock.
+ */
+
+#include <linux/highuid.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/buffer_head.h>
+#include <linux/vfs.h>
+#include <linux/writeback.h>
+#include <linux/namei.h>
+#include <asm/byteorder.h>
+#include "sysv.h"
+
+static int sysv_sync_fs(struct super_block *sb, int wait)
+{
+	struct sysv_sb_info *sbi = SYSV_SB(sb);
+	u32 time = (u32)ktime_get_real_seconds(), old_time;
+
+	mutex_lock(&sbi->s_lock);
+
+	/*
+	 * If we are going to write out the super block,
+	 * then attach current time stamp.
+	 * But if the filesystem was marked clean, keep it clean.
+	 */
+	old_time = fs32_to_cpu(sbi, *sbi->s_sb_time);
+	if (sbi->s_type == FSTYPE_SYSV4) {
+		if (*sbi->s_sb_state == cpu_to_fs32(sbi, 0x7c269d38u - old_time))
+			*sbi->s_sb_state = cpu_to_fs32(sbi, 0x7c269d38u - time);
+		*sbi->s_sb_time = cpu_to_fs32(sbi, time);
+		mark_buffer_dirty(sbi->s_bh2);
+	}
+
+	mutex_unlock(&sbi->s_lock);
+
+	return 0;
+}
+
+static int sysv_remount(struct super_block *sb, int *flags, char *data)
+{
+	struct sysv_sb_info *sbi = SYSV_SB(sb);
+
+	sync_filesystem(sb);
+	if (sbi->s_forced_ro)
+		*flags |= SB_RDONLY;
+	return 0;
+}
+
+static void sysv_put_super(struct super_block *sb)
+{
+	struct sysv_sb_info *sbi = SYSV_SB(sb);
+
+	if (!sb_rdonly(sb)) {
+		/* XXX ext2 also updates the state here */
+		mark_buffer_dirty(sbi->s_bh1);
+		if (sbi->s_bh1 != sbi->s_bh2)
+			mark_buffer_dirty(sbi->s_bh2);
+	}
+
+	brelse(sbi->s_bh1);
+	if (sbi->s_bh1 != sbi->s_bh2)
+		brelse(sbi->s_bh2);
+
+	kfree(sbi);
+}
+
+static int sysv_statfs(struct dentry *dentry, struct kstatfs *buf)
+{
+	struct super_block *sb = dentry->d_sb;
+	struct sysv_sb_info *sbi = SYSV_SB(sb);
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = sb->s_blocksize;
+	buf->f_blocks = sbi->s_ndatazones;
+	buf->f_bavail = buf->f_bfree = sysv_count_free_blocks(sb);
+	buf->f_files = sbi->s_ninodes;
+	buf->f_ffree = sysv_count_free_inodes(sb);
+	buf->f_namelen = SYSV_NAMELEN;
+	buf->f_fsid = u64_to_fsid(id);
+	return 0;
+}
+
+/* 
+ * NXI <-> N0XI for PDP, XIN <-> XIN0 for le32, NIX <-> 0NIX for be32
+ */
+static inline void read3byte(struct sysv_sb_info *sbi,
+	unsigned char * from, unsigned char * to)
+{
+	if (sbi->s_bytesex == BYTESEX_PDP) {
+		to[0] = from[0];
+		to[1] = 0;
+		to[2] = from[1];
+		to[3] = from[2];
+	} else if (sbi->s_bytesex == BYTESEX_LE) {
+		to[0] = from[0];
+		to[1] = from[1];
+		to[2] = from[2];
+		to[3] = 0;
+	} else {
+		to[0] = 0;
+		to[1] = from[0];
+		to[2] = from[1];
+		to[3] = from[2];
+	}
+}
+
+static inline void write3byte(struct sysv_sb_info *sbi,
+	unsigned char * from, unsigned char * to)
+{
+	if (sbi->s_bytesex == BYTESEX_PDP) {
+		to[0] = from[0];
+		to[1] = from[2];
+		to[2] = from[3];
+	} else if (sbi->s_bytesex == BYTESEX_LE) {
+		to[0] = from[0];
+		to[1] = from[1];
+		to[2] = from[2];
+	} else {
+		to[0] = from[1];
+		to[1] = from[2];
+		to[2] = from[3];
+	}
+}
+
+static const struct inode_operations sysv_symlink_inode_operations = {
+	.get_link	= page_get_link,
+	.getattr	= sysv_getattr,
+};
+
+void sysv_set_inode(struct inode *inode, dev_t rdev)
+{
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &sysv_file_inode_operations;
+		inode->i_fop = &sysv_file_operations;
+		inode->i_mapping->a_ops = &sysv_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &sysv_dir_inode_operations;
+		inode->i_fop = &sysv_dir_operations;
+		inode->i_mapping->a_ops = &sysv_aops;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &sysv_symlink_inode_operations;
+		inode_nohighmem(inode);
+		inode->i_mapping->a_ops = &sysv_aops;
+	} else
+		init_special_inode(inode, inode->i_mode, rdev);
+}
+
+struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
+{
+	struct sysv_sb_info * sbi = SYSV_SB(sb);
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	struct sysv_inode_info * si;
+	struct inode *inode;
+	unsigned int block;
+
+	if (!ino || ino > sbi->s_ninodes) {
+		printk("Bad inode number on dev %s: %d is out of range\n",
+		       sb->s_id, ino);
+		return ERR_PTR(-EIO);
+	}
+
+	inode = iget_locked(sb, ino);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+	if (!(inode->i_state & I_NEW))
+		return inode;
+
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode) {
+		printk("Major problem: unable to read inode from dev %s\n",
+		       inode->i_sb->s_id);
+		goto bad_inode;
+	}
+	/* SystemV FS: kludge permissions if ino==SYSV_ROOT_INO ?? */
+	inode->i_mode = fs16_to_cpu(sbi, raw_inode->i_mode);
+	i_uid_write(inode, (uid_t)fs16_to_cpu(sbi, raw_inode->i_uid));
+	i_gid_write(inode, (gid_t)fs16_to_cpu(sbi, raw_inode->i_gid));
+	set_nlink(inode, fs16_to_cpu(sbi, raw_inode->i_nlink));
+	inode->i_size = fs32_to_cpu(sbi, raw_inode->i_size);
+	inode->i_atime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_atime);
+	inode->i_mtime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_mtime);
+	inode->i_ctime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_ctime);
+	inode->i_ctime.tv_nsec = 0;
+	inode->i_atime.tv_nsec = 0;
+	inode->i_mtime.tv_nsec = 0;
+	inode->i_blocks = 0;
+
+	si = SYSV_I(inode);
+	for (block = 0; block < 10+1+1+1; block++)
+		read3byte(sbi, &raw_inode->i_data[3*block],
+				(u8 *)&si->i_data[block]);
+	brelse(bh);
+	si->i_dir_start_lookup = 0;
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		sysv_set_inode(inode,
+			       old_decode_dev(fs32_to_cpu(sbi, si->i_data[0])));
+	else
+		sysv_set_inode(inode, 0);
+	unlock_new_inode(inode);
+	return inode;
+
+bad_inode:
+	iget_failed(inode);
+	return ERR_PTR(-EIO);
+}
+
+static int __sysv_write_inode(struct inode *inode, int wait)
+{
+	struct super_block * sb = inode->i_sb;
+	struct sysv_sb_info * sbi = SYSV_SB(sb);
+	struct buffer_head * bh;
+	struct sysv_inode * raw_inode;
+	struct sysv_inode_info * si;
+	unsigned int ino, block;
+	int err = 0;
+
+	ino = inode->i_ino;
+	if (!ino || ino > sbi->s_ninodes) {
+		printk("Bad inode number on dev %s: %d is out of range\n",
+		       inode->i_sb->s_id, ino);
+		return -EIO;
+	}
+	raw_inode = sysv_raw_inode(sb, ino, &bh);
+	if (!raw_inode) {
+		printk("unable to read i-node block\n");
+		return -EIO;
+	}
+
+	raw_inode->i_mode = cpu_to_fs16(sbi, inode->i_mode);
+	raw_inode->i_uid = cpu_to_fs16(sbi, fs_high2lowuid(i_uid_read(inode)));
+	raw_inode->i_gid = cpu_to_fs16(sbi, fs_high2lowgid(i_gid_read(inode)));
+	raw_inode->i_nlink = cpu_to_fs16(sbi, inode->i_nlink);
+	raw_inode->i_size = cpu_to_fs32(sbi, inode->i_size);
+	raw_inode->i_atime = cpu_to_fs32(sbi, inode->i_atime.tv_sec);
+	raw_inode->i_mtime = cpu_to_fs32(sbi, inode->i_mtime.tv_sec);
+	raw_inode->i_ctime = cpu_to_fs32(sbi, inode->i_ctime.tv_sec);
+
+	si = SYSV_I(inode);
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+		si->i_data[0] = cpu_to_fs32(sbi, old_encode_dev(inode->i_rdev));
+	for (block = 0; block < 10+1+1+1; block++)
+		write3byte(sbi, (u8 *)&si->i_data[block],
+			&raw_inode->i_data[3*block]);
+	mark_buffer_dirty(bh);
+	if (wait) {
+                sync_dirty_buffer(bh);
+                if (buffer_req(bh) && !buffer_uptodate(bh)) {
+                        printk ("IO error syncing sysv inode [%s:%08x]\n",
+                                sb->s_id, ino);
+                        err = -EIO;
+                }
+        }
+	brelse(bh);
+	return err;
+}
+
+int sysv_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+	return __sysv_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
+}
+
+int sysv_sync_inode(struct inode *inode)
+{
+	return __sysv_write_inode(inode, 1);
+}
+
+static void sysv_evict_inode(struct inode *inode)
+{
+	truncate_inode_pages_final(&inode->i_data);
+	if (!inode->i_nlink) {
+		inode->i_size = 0;
+		sysv_truncate(inode);
+	}
+	invalidate_inode_buffers(inode);
+	clear_inode(inode);
+	if (!inode->i_nlink)
+		sysv_free_inode(inode);
+}
+
+static struct kmem_cache *sysv_inode_cachep;
+
+static struct inode *sysv_alloc_inode(struct super_block *sb)
+{
+	struct sysv_inode_info *si;
+
+	si = alloc_inode_sb(sb, sysv_inode_cachep, GFP_KERNEL);
+	if (!si)
+		return NULL;
+	return &si->vfs_inode;
+}
+
+static void sysv_free_in_core_inode(struct inode *inode)
+{
+	kmem_cache_free(sysv_inode_cachep, SYSV_I(inode));
+}
+
+static void init_once(void *p)
+{
+	struct sysv_inode_info *si = (struct sysv_inode_info *)p;
+
+	inode_init_once(&si->vfs_inode);
+}
+
+const struct super_operations sysv_sops = {
+	.alloc_inode	= sysv_alloc_inode,
+	.free_inode	= sysv_free_in_core_inode,
+	.write_inode	= sysv_write_inode,
+	.evict_inode	= sysv_evict_inode,
+	.put_super	= sysv_put_super,
+	.sync_fs	= sysv_sync_fs,
+	.remount_fs	= sysv_remount,
+	.statfs		= sysv_statfs,
+};
+
+int __init sysv_init_icache(void)
+{
+	sysv_inode_cachep = kmem_cache_create("sysv_inode_cache",
+			sizeof(struct sysv_inode_info), 0,
+			SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_ACCOUNT,
+			init_once);
+	if (!sysv_inode_cachep)
+		return -ENOMEM;
+	return 0;
+}
+
+void sysv_destroy_icache(void)
+{
+	/*
+	 * Make sure all delayed rcu free inodes are flushed before we
+	 * destroy cache.
+	 */
+	rcu_barrier();
+	kmem_cache_destroy(sysv_inode_cachep);
+}