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, 216 insertions, 0 deletions

diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
new file mode 100644
index 000000000..34baf5c0f
--- /dev/null
+++ b/fs/reiserfs/objectid.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+#include <linux/string.h>
+#include <linux/time.h>
+#include <linux/uuid.h>
+#include "reiserfs.h"
+
+/* find where objectid map starts */
+#define objectid_map(s,rs) (old_format_only (s) ? \
+                         (__le32 *)((struct reiserfs_super_block_v1 *)(rs) + 1) :\
+			 (__le32 *)((rs) + 1))
+
+#ifdef CONFIG_REISERFS_CHECK
+
+static void check_objectid_map(struct super_block *s, __le32 * map)
+{
+	if (le32_to_cpu(map[0]) != 1)
+		reiserfs_panic(s, "vs-15010", "map corrupted: %lx",
+			       (long unsigned int)le32_to_cpu(map[0]));
+
+	/* FIXME: add something else here */
+}
+
+#else
+static void check_objectid_map(struct super_block *s, __le32 * map)
+{;
+}
+#endif
+
+/*
+ * When we allocate objectids we allocate the first unused objectid.
+ * Each sequence of objectids in use (the odd sequences) is followed
+ * by a sequence of objectids not in use (the even sequences).  We
+ * only need to record the last objectid in each of these sequences
+ * (both the odd and even sequences) in order to fully define the
+ * boundaries of the sequences.  A consequence of allocating the first
+ * objectid not in use is that under most conditions this scheme is
+ * extremely compact.  The exception is immediately after a sequence
+ * of operations which deletes a large number of objects of
+ * non-sequential objectids, and even then it will become compact
+ * again as soon as more objects are created.  Note that many
+ * interesting optimizations of layout could result from complicating
+ * objectid assignment, but we have deferred making them for now.
+ */
+
+/* get unique object identifier */
+__u32 reiserfs_get_unused_objectid(struct reiserfs_transaction_handle *th)
+{
+	struct super_block *s = th->t_super;
+	struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s);
+	__le32 *map = objectid_map(s, rs);
+	__u32 unused_objectid;
+
+	BUG_ON(!th->t_trans_id);
+
+	check_objectid_map(s, map);
+
+	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
+	/* comment needed -Hans */
+	unused_objectid = le32_to_cpu(map[1]);
+	if (unused_objectid == U32_MAX) {
+		reiserfs_warning(s, "reiserfs-15100", "no more object ids");
+		reiserfs_restore_prepared_buffer(s, SB_BUFFER_WITH_SB(s));
+		return 0;
+	}
+
+	/*
+	 * This incrementation allocates the first unused objectid. That
+	 * is to say, the first entry on the objectid map is the first
+	 * unused objectid, and by incrementing it we use it.  See below
+	 * where we check to see if we eliminated a sequence of unused
+	 * objectids....
+	 */
+	map[1] = cpu_to_le32(unused_objectid + 1);
+
+	/*
+	 * Now we check to see if we eliminated the last remaining member of
+	 * the first even sequence (and can eliminate the sequence by
+	 * eliminating its last objectid from oids), and can collapse the
+	 * first two odd sequences into one sequence.  If so, then the net
+	 * result is to eliminate a pair of objectids from oids.  We do this
+	 * by shifting the entire map to the left.
+	 */
+	if (sb_oid_cursize(rs) > 2 && map[1] == map[2]) {
+		memmove(map + 1, map + 3,
+			(sb_oid_cursize(rs) - 3) * sizeof(__u32));
+		set_sb_oid_cursize(rs, sb_oid_cursize(rs) - 2);
+	}
+
+	journal_mark_dirty(th, SB_BUFFER_WITH_SB(s));
+	return unused_objectid;
+}
+
+/* makes object identifier unused */
+void reiserfs_release_objectid(struct reiserfs_transaction_handle *th,
+			       __u32 objectid_to_release)
+{
+	struct super_block *s = th->t_super;
+	struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(s);
+	__le32 *map = objectid_map(s, rs);
+	int i = 0;
+
+	BUG_ON(!th->t_trans_id);
+	/*return; */
+	check_objectid_map(s, map);
+
+	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
+	journal_mark_dirty(th, SB_BUFFER_WITH_SB(s));
+
+	/*
+	 * start at the beginning of the objectid map (i = 0) and go to
+	 * the end of it (i = disk_sb->s_oid_cursize).  Linear search is
+	 * what we use, though it is possible that binary search would be
+	 * more efficient after performing lots of deletions (which is
+	 * when oids is large.)  We only check even i's.
+	 */
+	while (i < sb_oid_cursize(rs)) {
+		if (objectid_to_release == le32_to_cpu(map[i])) {
+			/* This incrementation unallocates the objectid. */
+			le32_add_cpu(&map[i], 1);
+
+			/*
+			 * Did we unallocate the last member of an
+			 * odd sequence, and can shrink oids?
+			 */
+			if (map[i] == map[i + 1]) {
+				/* shrink objectid map */
+				memmove(map + i, map + i + 2,
+					(sb_oid_cursize(rs) - i -
+					 2) * sizeof(__u32));
+				set_sb_oid_cursize(rs, sb_oid_cursize(rs) - 2);
+
+				RFALSE(sb_oid_cursize(rs) < 2 ||
+				       sb_oid_cursize(rs) > sb_oid_maxsize(rs),
+				       "vs-15005: objectid map corrupted cur_size == %d (max == %d)",
+				       sb_oid_cursize(rs), sb_oid_maxsize(rs));
+			}
+			return;
+		}
+
+		if (objectid_to_release > le32_to_cpu(map[i]) &&
+		    objectid_to_release < le32_to_cpu(map[i + 1])) {
+			/* size of objectid map is not changed */
+			if (objectid_to_release + 1 == le32_to_cpu(map[i + 1])) {
+				le32_add_cpu(&map[i + 1], -1);
+				return;
+			}
+
+			/*
+			 * JDM comparing two little-endian values for
+			 * equality -- safe
+			 */
+			/*
+			 * objectid map must be expanded, but
+			 * there is no space
+			 */
+			if (sb_oid_cursize(rs) == sb_oid_maxsize(rs)) {
+				PROC_INFO_INC(s, leaked_oid);
+				return;
+			}
+
+			/* expand the objectid map */
+			memmove(map + i + 3, map + i + 1,
+				(sb_oid_cursize(rs) - i - 1) * sizeof(__u32));
+			map[i + 1] = cpu_to_le32(objectid_to_release);
+			map[i + 2] = cpu_to_le32(objectid_to_release + 1);
+			set_sb_oid_cursize(rs, sb_oid_cursize(rs) + 2);
+			return;
+		}
+		i += 2;
+	}
+
+	reiserfs_error(s, "vs-15011", "tried to free free object id (%lu)",
+		       (long unsigned)objectid_to_release);
+}
+
+int reiserfs_convert_objectid_map_v1(struct super_block *s)
+{
+	struct reiserfs_super_block *disk_sb = SB_DISK_SUPER_BLOCK(s);
+	int cur_size = sb_oid_cursize(disk_sb);
+	int new_size = (s->s_blocksize - SB_SIZE) / sizeof(__u32) / 2 * 2;
+	int old_max = sb_oid_maxsize(disk_sb);
+	struct reiserfs_super_block_v1 *disk_sb_v1;
+	__le32 *objectid_map;
+	int i;
+
+	disk_sb_v1 =
+	    (struct reiserfs_super_block_v1 *)(SB_BUFFER_WITH_SB(s)->b_data);
+	objectid_map = (__le32 *) (disk_sb_v1 + 1);
+
+	if (cur_size > new_size) {
+		/*
+		 * mark everyone used that was listed as free at
+		 * the end of the objectid map
+		 */
+		objectid_map[new_size - 1] = objectid_map[cur_size - 1];
+		set_sb_oid_cursize(disk_sb, new_size);
+	}
+	/* move the smaller objectid map past the end of the new super */
+	for (i = new_size - 1; i >= 0; i--) {
+		objectid_map[i + (old_max - new_size)] = objectid_map[i];
+	}
+
+	/* set the max size so we don't overflow later */
+	set_sb_oid_maxsize(disk_sb, new_size);
+
+	/* Zero out label and generate random UUID */
+	memset(disk_sb->s_label, 0, sizeof(disk_sb->s_label));
+	generate_random_uuid(disk_sb->s_uuid);
+
+	/* finally, zero out the unused chunk of the new super */
+	memset(disk_sb->s_unused, 0, sizeof(disk_sb->s_unused));
+	return 0;
+}