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, 271 insertions, 0 deletions

diff --git a/fs/ufs/util.c b/fs/ufs/util.c
new file mode 100644
index 000000000..08ddf41ea
--- /dev/null
+++ b/fs/ufs/util.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  linux/fs/ufs/util.c
+ *
+ * Copyright (C) 1998
+ * Daniel Pirkl <daniel.pirkl@email.cz>
+ * Charles University, Faculty of Mathematics and Physics
+ */
+ 
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/buffer_head.h>
+
+#include "ufs_fs.h"
+#include "ufs.h"
+#include "swab.h"
+#include "util.h"
+
+struct ufs_buffer_head * _ubh_bread_ (struct ufs_sb_private_info * uspi,
+	struct super_block *sb, u64 fragment, u64 size)
+{
+	struct ufs_buffer_head * ubh;
+	unsigned i, j ;
+	u64  count = 0;
+	if (size & ~uspi->s_fmask)
+		return NULL;
+	count = size >> uspi->s_fshift;
+	if (count > UFS_MAXFRAG)
+		return NULL;
+	ubh = kmalloc (sizeof (struct ufs_buffer_head), GFP_NOFS);
+	if (!ubh)
+		return NULL;
+	ubh->fragment = fragment;
+	ubh->count = count;
+	for (i = 0; i < count; i++)
+		if (!(ubh->bh[i] = sb_bread(sb, fragment + i)))
+			goto failed;
+	for (; i < UFS_MAXFRAG; i++)
+		ubh->bh[i] = NULL;
+	return ubh;
+failed:
+	for (j = 0; j < i; j++)
+		brelse (ubh->bh[j]);
+	kfree(ubh);
+	return NULL;
+}
+
+struct ufs_buffer_head * ubh_bread_uspi (struct ufs_sb_private_info * uspi,
+	struct super_block *sb, u64 fragment, u64 size)
+{
+	unsigned i, j;
+	u64 count = 0;
+	if (size & ~uspi->s_fmask)
+		return NULL;
+	count = size >> uspi->s_fshift;
+	if (count <= 0 || count > UFS_MAXFRAG)
+		return NULL;
+	USPI_UBH(uspi)->fragment = fragment;
+	USPI_UBH(uspi)->count = count;
+	for (i = 0; i < count; i++)
+		if (!(USPI_UBH(uspi)->bh[i] = sb_bread(sb, fragment + i)))
+			goto failed;
+	for (; i < UFS_MAXFRAG; i++)
+		USPI_UBH(uspi)->bh[i] = NULL;
+	return USPI_UBH(uspi);
+failed:
+	for (j = 0; j < i; j++)
+		brelse (USPI_UBH(uspi)->bh[j]);
+	return NULL;
+}
+
+void ubh_brelse (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for (i = 0; i < ubh->count; i++)
+		brelse (ubh->bh[i]);
+	kfree (ubh);
+}
+
+void ubh_brelse_uspi (struct ufs_sb_private_info * uspi)
+{
+	unsigned i;
+	if (!USPI_UBH(uspi))
+		return;
+	for ( i = 0; i < USPI_UBH(uspi)->count; i++ ) {
+		brelse (USPI_UBH(uspi)->bh[i]);
+		USPI_UBH(uspi)->bh[i] = NULL;
+	}
+}
+
+void ubh_mark_buffer_dirty (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	for ( i = 0; i < ubh->count; i++ )
+		mark_buffer_dirty (ubh->bh[i]);
+}
+
+void ubh_mark_buffer_uptodate (struct ufs_buffer_head * ubh, int flag)
+{
+	unsigned i;
+	if (!ubh)
+		return;
+	if (flag) {
+		for ( i = 0; i < ubh->count; i++ )
+			set_buffer_uptodate (ubh->bh[i]);
+	} else {
+		for ( i = 0; i < ubh->count; i++ )
+			clear_buffer_uptodate (ubh->bh[i]);
+	}
+}
+
+void ubh_sync_block(struct ufs_buffer_head *ubh)
+{
+	if (ubh) {
+		unsigned i;
+
+		for (i = 0; i < ubh->count; i++)
+			write_dirty_buffer(ubh->bh[i], 0);
+
+		for (i = 0; i < ubh->count; i++)
+			wait_on_buffer(ubh->bh[i]);
+	}
+}
+
+void ubh_bforget (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	if (!ubh) 
+		return;
+	for ( i = 0; i < ubh->count; i++ ) if ( ubh->bh[i] ) 
+		bforget (ubh->bh[i]);
+}
+ 
+int ubh_buffer_dirty (struct ufs_buffer_head * ubh)
+{
+	unsigned i;
+	unsigned result = 0;
+	if (!ubh)
+		return 0;
+	for ( i = 0; i < ubh->count; i++ )
+		result |= buffer_dirty(ubh->bh[i]);
+	return result;
+}
+
+void _ubh_ubhcpymem_(struct ufs_sb_private_info * uspi, 
+	unsigned char * mem, struct ufs_buffer_head * ubh, unsigned size)
+{
+	unsigned len, bhno;
+	if (size > (ubh->count << uspi->s_fshift))
+		size = ubh->count << uspi->s_fshift;
+	bhno = 0;
+	while (size) {
+		len = min_t(unsigned int, size, uspi->s_fsize);
+		memcpy (mem, ubh->bh[bhno]->b_data, len);
+		mem += uspi->s_fsize;
+		size -= len;
+		bhno++;
+	}
+}
+
+void _ubh_memcpyubh_(struct ufs_sb_private_info * uspi, 
+	struct ufs_buffer_head * ubh, unsigned char * mem, unsigned size)
+{
+	unsigned len, bhno;
+	if (size > (ubh->count << uspi->s_fshift))
+		size = ubh->count << uspi->s_fshift;
+	bhno = 0;
+	while (size) {
+		len = min_t(unsigned int, size, uspi->s_fsize);
+		memcpy (ubh->bh[bhno]->b_data, mem, len);
+		mem += uspi->s_fsize;
+		size -= len;
+		bhno++;
+	}
+}
+
+dev_t
+ufs_get_inode_dev(struct super_block *sb, struct ufs_inode_info *ufsi)
+{
+	__u32 fs32;
+	dev_t dev;
+
+	if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
+		fs32 = fs32_to_cpu(sb, ufsi->i_u1.i_data[1]);
+	else
+		fs32 = fs32_to_cpu(sb, ufsi->i_u1.i_data[0]);
+	switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUNx86:
+	case UFS_ST_SUN:
+		if ((fs32 & 0xffff0000) == 0 ||
+		    (fs32 & 0xffff0000) == 0xffff0000)
+			dev = old_decode_dev(fs32 & 0x7fff);
+		else
+			dev = MKDEV(sysv_major(fs32), sysv_minor(fs32));
+		break;
+
+	default:
+		dev = old_decode_dev(fs32);
+		break;
+	}
+	return dev;
+}
+
+void
+ufs_set_inode_dev(struct super_block *sb, struct ufs_inode_info *ufsi, dev_t dev)
+{
+	__u32 fs32;
+
+	switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
+	case UFS_ST_SUNx86:
+	case UFS_ST_SUN:
+		fs32 = sysv_encode_dev(dev);
+		if ((fs32 & 0xffff8000) == 0) {
+			fs32 = old_encode_dev(dev);
+		}
+		break;
+
+	default:
+		fs32 = old_encode_dev(dev);
+		break;
+	}
+	if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
+		ufsi->i_u1.i_data[1] = cpu_to_fs32(sb, fs32);
+	else
+		ufsi->i_u1.i_data[0] = cpu_to_fs32(sb, fs32);
+}
+
+/**
+ * ufs_get_locked_page() - locate, pin and lock a pagecache page, if not exist
+ * read it from disk.
+ * @mapping: the address_space to search
+ * @index: the page index
+ *
+ * Locates the desired pagecache page, if not exist we'll read it,
+ * locks it, increments its reference
+ * count and returns its address.
+ *
+ */
+
+struct page *ufs_get_locked_page(struct address_space *mapping,
+				 pgoff_t index)
+{
+	struct inode *inode = mapping->host;
+	struct page *page = find_lock_page(mapping, index);
+	if (!page) {
+		page = read_mapping_page(mapping, index, NULL);
+
+		if (IS_ERR(page)) {
+			printk(KERN_ERR "ufs_change_blocknr: "
+			       "read_mapping_page error: ino %lu, index: %lu\n",
+			       mapping->host->i_ino, index);
+			return page;
+		}
+
+		lock_page(page);
+
+		if (unlikely(page->mapping == NULL)) {
+			/* Truncate got there first */
+			unlock_page(page);
+			put_page(page);
+			return NULL;
+		}
+	}
+	if (!page_has_buffers(page))
+		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+	return page;
+}