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, 230 insertions, 0 deletions

diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
new file mode 100644
index 000000000..7b498a0d0
--- /dev/null
+++ b/fs/reiserfs/resize.c
@@ -0,0 +1,230 @@
+/*
+ * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/*
+ * Written by Alexander Zarochentcev.
+ *
+ * The kernel part of the (on-line) reiserfs resizer.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include "reiserfs.h"
+#include <linux/buffer_head.h>
+
+int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
+{
+	int err = 0;
+	struct reiserfs_super_block *sb;
+	struct reiserfs_bitmap_info *bitmap;
+	struct reiserfs_bitmap_info *info;
+	struct reiserfs_bitmap_info *old_bitmap = SB_AP_BITMAP(s);
+	struct buffer_head *bh;
+	struct reiserfs_transaction_handle th;
+	unsigned int bmap_nr_new, bmap_nr;
+	unsigned int block_r_new, block_r;
+
+	struct reiserfs_list_bitmap *jb;
+	struct reiserfs_list_bitmap jbitmap[JOURNAL_NUM_BITMAPS];
+
+	unsigned long int block_count, free_blocks;
+	int i;
+	int copy_size;
+	int depth;
+
+	sb = SB_DISK_SUPER_BLOCK(s);
+
+	if (SB_BLOCK_COUNT(s) >= block_count_new) {
+		printk("can\'t shrink filesystem on-line\n");
+		return -EINVAL;
+	}
+
+	/* check the device size */
+	depth = reiserfs_write_unlock_nested(s);
+	bh = sb_bread(s, block_count_new - 1);
+	reiserfs_write_lock_nested(s, depth);
+	if (!bh) {
+		printk("reiserfs_resize: can\'t read last block\n");
+		return -EINVAL;
+	}
+	bforget(bh);
+
+	/*
+	 * old disk layout detection; those partitions can be mounted, but
+	 * cannot be resized
+	 */
+	if (SB_BUFFER_WITH_SB(s)->b_blocknr * SB_BUFFER_WITH_SB(s)->b_size
+	    != REISERFS_DISK_OFFSET_IN_BYTES) {
+		printk
+		    ("reiserfs_resize: unable to resize a reiserfs without distributed bitmap (fs version < 3.5.12)\n");
+		return -ENOTSUPP;
+	}
+
+	/* count used bits in last bitmap block */
+	block_r = SB_BLOCK_COUNT(s) -
+			(reiserfs_bmap_count(s) - 1) * s->s_blocksize * 8;
+
+	/* count bitmap blocks in new fs */
+	bmap_nr_new = block_count_new / (s->s_blocksize * 8);
+	block_r_new = block_count_new - bmap_nr_new * s->s_blocksize * 8;
+	if (block_r_new)
+		bmap_nr_new++;
+	else
+		block_r_new = s->s_blocksize * 8;
+
+	/* save old values */
+	block_count = SB_BLOCK_COUNT(s);
+	bmap_nr = reiserfs_bmap_count(s);
+
+	/* resizing of reiserfs bitmaps (journal and real), if needed */
+	if (bmap_nr_new > bmap_nr) {
+		/* reallocate journal bitmaps */
+		if (reiserfs_allocate_list_bitmaps(s, jbitmap, bmap_nr_new) < 0) {
+			printk
+			    ("reiserfs_resize: unable to allocate memory for journal bitmaps\n");
+			return -ENOMEM;
+		}
+		/*
+		 * the new journal bitmaps are zero filled, now we copy i
+		 * the bitmap node pointers from the old journal bitmap
+		 * structs, and then transfer the new data structures
+		 * into the journal struct.
+		 *
+		 * using the copy_size var below allows this code to work for
+		 * both shrinking and expanding the FS.
+		 */
+		copy_size = min(bmap_nr_new, bmap_nr);
+		copy_size =
+		    copy_size * sizeof(struct reiserfs_list_bitmap_node *);
+		for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) {
+			struct reiserfs_bitmap_node **node_tmp;
+			jb = SB_JOURNAL(s)->j_list_bitmap + i;
+			memcpy(jbitmap[i].bitmaps, jb->bitmaps, copy_size);
+
+			/*
+			 * just in case vfree schedules on us, copy the new
+			 * pointer into the journal struct before freeing the
+			 * old one
+			 */
+			node_tmp = jb->bitmaps;
+			jb->bitmaps = jbitmap[i].bitmaps;
+			vfree(node_tmp);
+		}
+
+		/*
+		 * allocate additional bitmap blocks, reallocate
+		 * array of bitmap block pointers
+		 */
+		bitmap =
+		    vzalloc(array_size(bmap_nr_new,
+				       sizeof(struct reiserfs_bitmap_info)));
+		if (!bitmap) {
+			/*
+			 * Journal bitmaps are still supersized, but the
+			 * memory isn't leaked, so I guess it's ok
+			 */
+			printk("reiserfs_resize: unable to allocate memory.\n");
+			return -ENOMEM;
+		}
+		for (i = 0; i < bmap_nr; i++)
+			bitmap[i] = old_bitmap[i];
+
+		/*
+		 * This doesn't go through the journal, but it doesn't have to.
+		 * The changes are still atomic: We're synced up when the
+		 * journal transaction begins, and the new bitmaps don't
+		 * matter if the transaction fails.
+		 */
+		for (i = bmap_nr; i < bmap_nr_new; i++) {
+			int depth;
+			/*
+			 * don't use read_bitmap_block since it will cache
+			 * the uninitialized bitmap
+			 */
+			depth = reiserfs_write_unlock_nested(s);
+			bh = sb_bread(s, i * s->s_blocksize * 8);
+			reiserfs_write_lock_nested(s, depth);
+			if (!bh) {
+				vfree(bitmap);
+				return -EIO;
+			}
+			memset(bh->b_data, 0, sb_blocksize(sb));
+			reiserfs_set_le_bit(0, bh->b_data);
+			reiserfs_cache_bitmap_metadata(s, bh, bitmap + i);
+
+			set_buffer_uptodate(bh);
+			mark_buffer_dirty(bh);
+			depth = reiserfs_write_unlock_nested(s);
+			sync_dirty_buffer(bh);
+			reiserfs_write_lock_nested(s, depth);
+			/* update bitmap_info stuff */
+			bitmap[i].free_count = sb_blocksize(sb) * 8 - 1;
+			brelse(bh);
+		}
+		/* free old bitmap blocks array */
+		SB_AP_BITMAP(s) = bitmap;
+		vfree(old_bitmap);
+	}
+
+	/*
+	 * begin transaction, if there was an error, it's fine. Yes, we have
+	 * incorrect bitmaps now, but none of it is ever going to touch the
+	 * disk anyway.
+	 */
+	err = journal_begin(&th, s, 10);
+	if (err)
+		return err;
+
+	/* Extend old last bitmap block - new blocks have been made available */
+	info = SB_AP_BITMAP(s) + bmap_nr - 1;
+	bh = reiserfs_read_bitmap_block(s, bmap_nr - 1);
+	if (!bh) {
+		int jerr = journal_end(&th);
+		if (jerr)
+			return jerr;
+		return -EIO;
+	}
+
+	reiserfs_prepare_for_journal(s, bh, 1);
+	for (i = block_r; i < s->s_blocksize * 8; i++)
+		reiserfs_clear_le_bit(i, bh->b_data);
+	info->free_count += s->s_blocksize * 8 - block_r;
+
+	journal_mark_dirty(&th, bh);
+	brelse(bh);
+
+	/* Correct new last bitmap block - It may not be full */
+	info = SB_AP_BITMAP(s) + bmap_nr_new - 1;
+	bh = reiserfs_read_bitmap_block(s, bmap_nr_new - 1);
+	if (!bh) {
+		int jerr = journal_end(&th);
+		if (jerr)
+			return jerr;
+		return -EIO;
+	}
+
+	reiserfs_prepare_for_journal(s, bh, 1);
+	for (i = block_r_new; i < s->s_blocksize * 8; i++)
+		reiserfs_set_le_bit(i, bh->b_data);
+	journal_mark_dirty(&th, bh);
+	brelse(bh);
+
+	info->free_count -= s->s_blocksize * 8 - block_r_new;
+	/* update super */
+	reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
+	free_blocks = SB_FREE_BLOCKS(s);
+	PUT_SB_FREE_BLOCKS(s,
+			   free_blocks + (block_count_new - block_count -
+					  (bmap_nr_new - bmap_nr)));
+	PUT_SB_BLOCK_COUNT(s, block_count_new);
+	PUT_SB_BMAP_NR(s, bmap_would_wrap(bmap_nr_new) ? : bmap_nr_new);
+
+	journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
+
+	SB_JOURNAL(s)->j_must_wait = 1;
+	return journal_end(&th);
+}