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, 395 insertions, 0 deletions

diff --git a/drivers/mtd/parsers/afs.c b/drivers/mtd/parsers/afs.c
new file mode 100644
index 000000000..26116694c
--- /dev/null
+++ b/drivers/mtd/parsers/afs.c
@@ -0,0 +1,395 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*======================================================================
+
+    drivers/mtd/afs.c: ARM Flash Layout/Partitioning
+
+    Copyright © 2000 ARM Limited
+    Copyright (C) 2019 Linus Walleij
+
+
+   This is access code for flashes using ARM's flash partitioning
+   standards.
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/init.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F
+#define AFSV2_FOOTER_MAGIC1 0x464C5348 /* "FLSH" */
+#define AFSV2_FOOTER_MAGIC2 0x464F4F54 /* "FOOT" */
+
+struct footer_v1 {
+	u32 image_info_base;	/* Address of first word of ImageFooter  */
+	u32 image_start;	/* Start of area reserved by this footer */
+	u32 signature;		/* 'Magic' number proves it's a footer   */
+	u32 type;		/* Area type: ARM Image, SIB, customer   */
+	u32 checksum;		/* Just this structure                   */
+};
+
+struct image_info_v1 {
+	u32 bootFlags;		/* Boot flags, compression etc.          */
+	u32 imageNumber;	/* Unique number, selects for boot etc.  */
+	u32 loadAddress;	/* Address program should be loaded to   */
+	u32 length;		/* Actual size of image                  */
+	u32 address;		/* Image is executed from here           */
+	char name[16];		/* Null terminated                       */
+	u32 headerBase;		/* Flash Address of any stripped header  */
+	u32 header_length;	/* Length of header in memory            */
+	u32 headerType;		/* AIF, RLF, s-record etc.               */
+	u32 checksum;		/* Image checksum (inc. this struct)     */
+};
+
+static u32 word_sum(void *words, int num)
+{
+	u32 *p = words;
+	u32 sum = 0;
+
+	while (num--)
+		sum += *p++;
+
+	return sum;
+}
+
+static u32 word_sum_v2(u32 *p, u32 num)
+{
+	u32 sum = 0;
+	int i;
+
+	for (i = 0; i < num; i++) {
+		u32 val;
+
+		val = p[i];
+		if (val > ~sum)
+			sum++;
+		sum += val;
+	}
+	return ~sum;
+}
+
+static bool afs_is_v1(struct mtd_info *mtd, u_int off)
+{
+	/* The magic is 12 bytes from the end of the erase block */
+	u_int ptr = off + mtd->erasesize - 12;
+	u32 magic;
+	size_t sz;
+	int ret;
+
+	ret = mtd_read(mtd, ptr, 4, &sz, (u_char *)&magic);
+	if (ret < 0) {
+		printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n",
+		       ptr, ret);
+		return false;
+	}
+	if (ret >= 0 && sz != 4)
+		return false;
+
+	return (magic == AFSV1_FOOTER_MAGIC);
+}
+
+static bool afs_is_v2(struct mtd_info *mtd, u_int off)
+{
+	/* The magic is the 8 last bytes of the erase block */
+	u_int ptr = off + mtd->erasesize - 8;
+	u32 foot[2];
+	size_t sz;
+	int ret;
+
+	ret = mtd_read(mtd, ptr, 8, &sz, (u_char *)foot);
+	if (ret < 0) {
+		printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n",
+		       ptr, ret);
+		return false;
+	}
+	if (ret >= 0 && sz != 8)
+		return false;
+
+	return (foot[0] == AFSV2_FOOTER_MAGIC1 &&
+		foot[1] == AFSV2_FOOTER_MAGIC2);
+}
+
+static int afs_parse_v1_partition(struct mtd_info *mtd,
+				  u_int off, struct mtd_partition *part)
+{
+	struct footer_v1 fs;
+	struct image_info_v1 iis;
+	u_int mask;
+	/*
+	 * Static checks cannot see that we bail out if we have an error
+	 * reading the footer.
+	 */
+	u_int iis_ptr;
+	u_int img_ptr;
+	u_int ptr;
+	size_t sz;
+	int ret;
+	int i;
+
+	/*
+	 * This is the address mask; we use this to mask off out of
+	 * range address bits.
+	 */
+	mask = mtd->size - 1;
+
+	ptr = off + mtd->erasesize - sizeof(fs);
+	ret = mtd_read(mtd, ptr, sizeof(fs), &sz, (u_char *)&fs);
+	if (ret >= 0 && sz != sizeof(fs))
+		ret = -EINVAL;
+	if (ret < 0) {
+		printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n",
+		       ptr, ret);
+		return ret;
+	}
+	/*
+	 * Check the checksum.
+	 */
+	if (word_sum(&fs, sizeof(fs) / sizeof(u32)) != 0xffffffff)
+		return -EINVAL;
+
+	/*
+	 * Hide the SIB (System Information Block)
+	 */
+	if (fs.type == 2)
+		return 0;
+
+	iis_ptr = fs.image_info_base & mask;
+	img_ptr = fs.image_start & mask;
+
+	/*
+	 * Check the image info base.  This can not
+	 * be located after the footer structure.
+	 */
+	if (iis_ptr >= ptr)
+		return 0;
+
+	/*
+	 * Check the start of this image.  The image
+	 * data can not be located after this block.
+	 */
+	if (img_ptr > off)
+		return 0;
+
+	/* Read the image info block */
+	memset(&iis, 0, sizeof(iis));
+	ret = mtd_read(mtd, iis_ptr, sizeof(iis), &sz, (u_char *)&iis);
+	if (ret < 0) {
+		printk(KERN_ERR "AFS: mtd read failed at 0x%x: %d\n",
+		       iis_ptr, ret);
+		return -EINVAL;
+	}
+
+	if (sz != sizeof(iis))
+		return -EINVAL;
+
+	/*
+	 * Validate the name - it must be NUL terminated.
+	 */
+	for (i = 0; i < sizeof(iis.name); i++)
+		if (iis.name[i] == '\0')
+			break;
+	if (i > sizeof(iis.name))
+		return -EINVAL;
+
+	part->name = kstrdup(iis.name, GFP_KERNEL);
+	if (!part->name)
+		return -ENOMEM;
+
+	part->size = (iis.length + mtd->erasesize - 1) & ~(mtd->erasesize - 1);
+	part->offset = img_ptr;
+	part->mask_flags = 0;
+
+	printk("  mtd: at 0x%08x, %5lluKiB, %8u, %s\n",
+	       img_ptr, part->size / 1024,
+	       iis.imageNumber, part->name);
+
+	return 0;
+}
+
+static int afs_parse_v2_partition(struct mtd_info *mtd,
+				  u_int off, struct mtd_partition *part)
+{
+	u_int ptr;
+	u32 footer[12];
+	u32 imginfo[36];
+	char *name;
+	u32 version;
+	u32 entrypoint;
+	u32 attributes;
+	u32 region_count;
+	u32 block_start;
+	u32 block_end;
+	u32 crc;
+	size_t sz;
+	int ret;
+	int i;
+	int pad = 0;
+
+	pr_debug("Parsing v2 partition @%08x-%08x\n",
+		 off, off + mtd->erasesize);
+
+	/* First read the footer */
+	ptr = off + mtd->erasesize - sizeof(footer);
+	ret = mtd_read(mtd, ptr, sizeof(footer), &sz, (u_char *)footer);
+	if ((ret < 0) || (ret >= 0 && sz != sizeof(footer))) {
+		pr_err("AFS: mtd read failed at 0x%x: %d\n",
+		       ptr, ret);
+		return -EIO;
+	}
+	name = (char *) &footer[0];
+	version = footer[9];
+	ptr = off + mtd->erasesize - sizeof(footer) - footer[8];
+
+	pr_debug("found image \"%s\", version %08x, info @%08x\n",
+		 name, version, ptr);
+
+	/* Then read the image information */
+	ret = mtd_read(mtd, ptr, sizeof(imginfo), &sz, (u_char *)imginfo);
+	if ((ret < 0) || (ret >= 0 && sz != sizeof(imginfo))) {
+		pr_err("AFS: mtd read failed at 0x%x: %d\n",
+		       ptr, ret);
+		return -EIO;
+	}
+
+	/* 32bit platforms have 4 bytes padding */
+	crc = word_sum_v2(&imginfo[1], 34);
+	if (!crc) {
+		pr_debug("Padding 1 word (4 bytes)\n");
+		pad = 1;
+	} else {
+		/* 64bit platforms have 8 bytes padding */
+		crc = word_sum_v2(&imginfo[2], 34);
+		if (!crc) {
+			pr_debug("Padding 2 words (8 bytes)\n");
+			pad = 2;
+		}
+	}
+	if (crc) {
+		pr_err("AFS: bad checksum on v2 image info: %08x\n", crc);
+		return -EINVAL;
+	}
+	entrypoint = imginfo[pad];
+	attributes = imginfo[pad+1];
+	region_count = imginfo[pad+2];
+	block_start = imginfo[20];
+	block_end = imginfo[21];
+
+	pr_debug("image entry=%08x, attr=%08x, regions=%08x, "
+		 "bs=%08x, be=%08x\n",
+		 entrypoint, attributes, region_count,
+		 block_start, block_end);
+
+	for (i = 0; i < region_count; i++) {
+		u32 region_load_addr = imginfo[pad + 3 + i*4];
+		u32 region_size = imginfo[pad + 4 + i*4];
+		u32 region_offset = imginfo[pad + 5 + i*4];
+		u32 region_start;
+		u32 region_end;
+
+		pr_debug("  region %d: address: %08x, size: %08x, "
+			 "offset: %08x\n",
+			 i,
+			 region_load_addr,
+			 region_size,
+			 region_offset);
+
+		region_start = off + region_offset;
+		region_end = region_start + region_size;
+		/* Align partition to end of erase block */
+		region_end += (mtd->erasesize - 1);
+		region_end &= ~(mtd->erasesize -1);
+		pr_debug("   partition start = %08x, partition end = %08x\n",
+			 region_start, region_end);
+
+		/* Create one partition per region */
+		part->name = kstrdup(name, GFP_KERNEL);
+		if (!part->name)
+			return -ENOMEM;
+		part->offset = region_start;
+		part->size = region_end - region_start;
+		part->mask_flags = 0;
+	}
+
+	return 0;
+}
+
+static int parse_afs_partitions(struct mtd_info *mtd,
+				const struct mtd_partition **pparts,
+				struct mtd_part_parser_data *data)
+{
+	struct mtd_partition *parts;
+	u_int off, sz;
+	int ret = 0;
+	int i;
+
+	/* Count the partitions by looping over all erase blocks */
+	for (i = off = sz = 0; off < mtd->size; off += mtd->erasesize) {
+		if (afs_is_v1(mtd, off)) {
+			sz += sizeof(struct mtd_partition);
+			i += 1;
+		}
+		if (afs_is_v2(mtd, off)) {
+			sz += sizeof(struct mtd_partition);
+			i += 1;
+		}
+	}
+
+	if (!i)
+		return 0;
+
+	parts = kzalloc(sz, GFP_KERNEL);
+	if (!parts)
+		return -ENOMEM;
+
+	/*
+	 * Identify the partitions
+	 */
+	for (i = off = 0; off < mtd->size; off += mtd->erasesize) {
+		if (afs_is_v1(mtd, off)) {
+			ret = afs_parse_v1_partition(mtd, off, &parts[i]);
+			if (ret)
+				goto out_free_parts;
+			i++;
+		}
+		if (afs_is_v2(mtd, off)) {
+			ret = afs_parse_v2_partition(mtd, off, &parts[i]);
+			if (ret)
+				goto out_free_parts;
+			i++;
+		}
+	}
+
+	*pparts = parts;
+	return i;
+
+out_free_parts:
+	while (--i >= 0)
+		kfree(parts[i].name);
+	kfree(parts);
+	*pparts = NULL;
+	return ret;
+}
+
+static const struct of_device_id mtd_parser_afs_of_match_table[] = {
+	{ .compatible = "arm,arm-firmware-suite" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtd_parser_afs_of_match_table);
+
+static struct mtd_part_parser afs_parser = {
+	.parse_fn = parse_afs_partitions,
+	.name = "afs",
+	.of_match_table = mtd_parser_afs_of_match_table,
+};
+module_mtd_part_parser(afs_parser);
+
+MODULE_AUTHOR("ARM Ltd");
+MODULE_DESCRIPTION("ARM Firmware Suite partition parser");
+MODULE_LICENSE("GPL");