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, 437 insertions, 0 deletions

diff --git a/drivers/mtd/parsers/cmdlinepart.c b/drivers/mtd/parsers/cmdlinepart.c
new file mode 100644
index 000000000..b34856def
--- /dev/null
+++ b/drivers/mtd/parsers/cmdlinepart.c
@@ -0,0 +1,437 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Read flash partition table from command line
+ *
+ * Copyright © 2002      SYSGO Real-Time Solutions GmbH
+ * Copyright © 2002-2010 David Woodhouse <dwmw2@infradead.org>
+ *
+ * The format for the command line is as follows:
+ *
+ * mtdparts=<mtddef>[;<mtddef]
+ * <mtddef>  := <mtd-id>:<partdef>[,<partdef>]
+ * <partdef> := <size>[@<offset>][<name>][ro][lk][slc]
+ * <mtd-id>  := unique name used in mapping driver/device (mtd->name)
+ * <size>    := standard linux memsize OR "-" to denote all remaining space
+ *              size is automatically truncated at end of device
+ *              if specified or truncated size is 0 the part is skipped
+ * <offset>  := standard linux memsize
+ *              if omitted the part will immediately follow the previous part
+ *              or 0 if the first part
+ * <name>    := '(' NAME ')'
+ *              NAME will appear in /proc/mtd
+ *
+ * <size> and <offset> can be specified such that the parts are out of order
+ * in physical memory and may even overlap.
+ *
+ * The parts are assigned MTD numbers in the order they are specified in the
+ * command line regardless of their order in physical memory.
+ *
+ * Examples:
+ *
+ * 1 NOR Flash, with 1 single writable partition:
+ * edb7312-nor:-
+ *
+ * 1 NOR Flash with 2 partitions, 1 NAND with one
+ * edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
+ */
+
+#define pr_fmt(fmt)	"mtd: " fmt
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/module.h>
+#include <linux/err.h>
+
+/* debug macro */
+#if 0
+#define dbg(x) do { printk("DEBUG-CMDLINE-PART: "); printk x; } while(0)
+#else
+#define dbg(x)
+#endif
+
+
+/* special size referring to all the remaining space in a partition */
+#define SIZE_REMAINING ULLONG_MAX
+#define OFFSET_CONTINUOUS ULLONG_MAX
+
+struct cmdline_mtd_partition {
+	struct cmdline_mtd_partition *next;
+	char *mtd_id;
+	int num_parts;
+	struct mtd_partition *parts;
+};
+
+/* mtdpart_setup() parses into here */
+static struct cmdline_mtd_partition *partitions;
+
+/* the command line passed to mtdpart_setup() */
+static char *mtdparts;
+static char *cmdline;
+static int cmdline_parsed;
+
+/*
+ * Parse one partition definition for an MTD. Since there can be many
+ * comma separated partition definitions, this function calls itself
+ * recursively until no more partition definitions are found. Nice side
+ * effect: the memory to keep the mtd_partition structs and the names
+ * is allocated upon the last definition being found. At that point the
+ * syntax has been verified ok.
+ */
+static struct mtd_partition * newpart(char *s,
+				      char **retptr,
+				      int *num_parts,
+				      int this_part,
+				      unsigned char **extra_mem_ptr,
+				      int extra_mem_size)
+{
+	struct mtd_partition *parts;
+	unsigned long long size, offset = OFFSET_CONTINUOUS;
+	char *name;
+	int name_len;
+	unsigned char *extra_mem;
+	char delim;
+	unsigned int mask_flags, add_flags;
+
+	/* fetch the partition size */
+	if (*s == '-') {
+		/* assign all remaining space to this partition */
+		size = SIZE_REMAINING;
+		s++;
+	} else {
+		size = memparse(s, &s);
+		if (!size) {
+			pr_err("partition has size 0\n");
+			return ERR_PTR(-EINVAL);
+		}
+	}
+
+	/* fetch partition name and flags */
+	mask_flags = 0; /* this is going to be a regular partition */
+	add_flags = 0;
+	delim = 0;
+
+	/* check for offset */
+	if (*s == '@') {
+		s++;
+		offset = memparse(s, &s);
+	}
+
+	/* now look for name */
+	if (*s == '(')
+		delim = ')';
+
+	if (delim) {
+		char *p;
+
+		name = ++s;
+		p = strchr(name, delim);
+		if (!p) {
+			pr_err("no closing %c found in partition name\n", delim);
+			return ERR_PTR(-EINVAL);
+		}
+		name_len = p - name;
+		s = p + 1;
+	} else {
+		name = NULL;
+		name_len = 13; /* Partition_000 */
+	}
+
+	/* record name length for memory allocation later */
+	extra_mem_size += name_len + 1;
+
+	/* test for options */
+	if (strncmp(s, "ro", 2) == 0) {
+		mask_flags |= MTD_WRITEABLE;
+		s += 2;
+	}
+
+	/* if lk is found do NOT unlock the MTD partition*/
+	if (strncmp(s, "lk", 2) == 0) {
+		mask_flags |= MTD_POWERUP_LOCK;
+		s += 2;
+	}
+
+	/* if slc is found use emulated SLC mode on this partition*/
+	if (!strncmp(s, "slc", 3)) {
+		add_flags |= MTD_SLC_ON_MLC_EMULATION;
+		s += 3;
+	}
+
+	/* test if more partitions are following */
+	if (*s == ',') {
+		if (size == SIZE_REMAINING) {
+			pr_err("no partitions allowed after a fill-up partition\n");
+			return ERR_PTR(-EINVAL);
+		}
+		/* more partitions follow, parse them */
+		parts = newpart(s + 1, &s, num_parts, this_part + 1,
+				&extra_mem, extra_mem_size);
+		if (IS_ERR(parts))
+			return parts;
+	} else {
+		/* this is the last partition: allocate space for all */
+		int alloc_size;
+
+		*num_parts = this_part + 1;
+		alloc_size = *num_parts * sizeof(struct mtd_partition) +
+			     extra_mem_size;
+
+		parts = kzalloc(alloc_size, GFP_KERNEL);
+		if (!parts)
+			return ERR_PTR(-ENOMEM);
+		extra_mem = (unsigned char *)(parts + *num_parts);
+	}
+
+	/*
+	 * enter this partition (offset will be calculated later if it is
+	 * OFFSET_CONTINUOUS at this point)
+	 */
+	parts[this_part].size = size;
+	parts[this_part].offset = offset;
+	parts[this_part].mask_flags = mask_flags;
+	parts[this_part].add_flags = add_flags;
+	if (name)
+		strscpy(extra_mem, name, name_len + 1);
+	else
+		sprintf(extra_mem, "Partition_%03d", this_part);
+	parts[this_part].name = extra_mem;
+	extra_mem += name_len + 1;
+
+	dbg(("partition %d: name <%s>, offset %llx, size %llx, mask flags %x\n",
+	     this_part, parts[this_part].name, parts[this_part].offset,
+	     parts[this_part].size, parts[this_part].mask_flags));
+
+	/* return (updated) pointer to extra_mem memory */
+	if (extra_mem_ptr)
+		*extra_mem_ptr = extra_mem;
+
+	/* return (updated) pointer command line string */
+	*retptr = s;
+
+	/* return partition table */
+	return parts;
+}
+
+/*
+ * Parse the command line.
+ */
+static int mtdpart_setup_real(char *s)
+{
+	cmdline_parsed = 1;
+
+	for( ; s != NULL; )
+	{
+		struct cmdline_mtd_partition *this_mtd;
+		struct mtd_partition *parts;
+		int mtd_id_len, num_parts;
+		char *p, *mtd_id, *semicol, *open_parenth;
+
+		/*
+		 * Replace the first ';' by a NULL char so strrchr can work
+		 * properly.
+		 */
+		semicol = strchr(s, ';');
+		if (semicol)
+			*semicol = '\0';
+
+		/*
+		 * make sure that part-names with ":" will not be handled as
+		 * part of the mtd-id with an ":"
+		 */
+		open_parenth = strchr(s, '(');
+		if (open_parenth)
+			*open_parenth = '\0';
+
+		mtd_id = s;
+
+		/*
+		 * fetch <mtd-id>. We use strrchr to ignore all ':' that could
+		 * be present in the MTD name, only the last one is interpreted
+		 * as an <mtd-id>/<part-definition> separator.
+		 */
+		p = strrchr(s, ':');
+
+		/* Restore the '(' now. */
+		if (open_parenth)
+			*open_parenth = '(';
+
+		/* Restore the ';' now. */
+		if (semicol)
+			*semicol = ';';
+
+		if (!p) {
+			pr_err("no mtd-id\n");
+			return -EINVAL;
+		}
+		mtd_id_len = p - mtd_id;
+
+		dbg(("parsing <%s>\n", p+1));
+
+		/*
+		 * parse one mtd. have it reserve memory for the
+		 * struct cmdline_mtd_partition and the mtd-id string.
+		 */
+		parts = newpart(p + 1,		/* cmdline */
+				&s,		/* out: updated cmdline ptr */
+				&num_parts,	/* out: number of parts */
+				0,		/* first partition */
+				(unsigned char**)&this_mtd, /* out: extra mem */
+				mtd_id_len + 1 + sizeof(*this_mtd) +
+				sizeof(void*)-1 /*alignment*/);
+		if (IS_ERR(parts)) {
+			/*
+			 * An error occurred. We're either:
+			 * a) out of memory, or
+			 * b) in the middle of the partition spec
+			 * Either way, this mtd is hosed and we're
+			 * unlikely to succeed in parsing any more
+			 */
+			 return PTR_ERR(parts);
+		 }
+
+		/* align this_mtd */
+		this_mtd = (struct cmdline_mtd_partition *)
+				ALIGN((unsigned long)this_mtd, sizeof(void *));
+		/* enter results */
+		this_mtd->parts = parts;
+		this_mtd->num_parts = num_parts;
+		this_mtd->mtd_id = (char*)(this_mtd + 1);
+		strscpy(this_mtd->mtd_id, mtd_id, mtd_id_len + 1);
+
+		/* link into chain */
+		this_mtd->next = partitions;
+		partitions = this_mtd;
+
+		dbg(("mtdid=<%s> num_parts=<%d>\n",
+		     this_mtd->mtd_id, this_mtd->num_parts));
+
+
+		/* EOS - we're done */
+		if (*s == 0)
+			break;
+
+		/* does another spec follow? */
+		if (*s != ';') {
+			pr_err("bad character after partition (%c)\n", *s);
+			return -EINVAL;
+		}
+		s++;
+	}
+
+	return 0;
+}
+
+/*
+ * Main function to be called from the MTD mapping driver/device to
+ * obtain the partitioning information. At this point the command line
+ * arguments will actually be parsed and turned to struct mtd_partition
+ * information. It returns partitions for the requested mtd device, or
+ * the first one in the chain if a NULL mtd_id is passed in.
+ */
+static int parse_cmdline_partitions(struct mtd_info *master,
+				    const struct mtd_partition **pparts,
+				    struct mtd_part_parser_data *data)
+{
+	unsigned long long offset;
+	int i, err;
+	struct cmdline_mtd_partition *part;
+	const char *mtd_id = master->name;
+
+	/* parse command line */
+	if (!cmdline_parsed) {
+		err = mtdpart_setup_real(cmdline);
+		if (err)
+			return err;
+	}
+
+	/*
+	 * Search for the partition definition matching master->name.
+	 * If master->name is not set, stop at first partition definition.
+	 */
+	for (part = partitions; part; part = part->next) {
+		if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id)))
+			break;
+	}
+
+	if (!part)
+		return 0;
+
+	for (i = 0, offset = 0; i < part->num_parts; i++) {
+		if (part->parts[i].offset == OFFSET_CONTINUOUS)
+			part->parts[i].offset = offset;
+		else
+			offset = part->parts[i].offset;
+
+		if (part->parts[i].size == SIZE_REMAINING)
+			part->parts[i].size = master->size - offset;
+
+		if (offset + part->parts[i].size > master->size) {
+			pr_warn("%s: partitioning exceeds flash size, truncating\n",
+				part->mtd_id);
+			part->parts[i].size = master->size - offset;
+		}
+		offset += part->parts[i].size;
+
+		if (part->parts[i].size == 0) {
+			pr_warn("%s: skipping zero sized partition\n",
+				part->mtd_id);
+			part->num_parts--;
+			memmove(&part->parts[i], &part->parts[i + 1],
+				sizeof(*part->parts) * (part->num_parts - i));
+			i--;
+		}
+	}
+
+	*pparts = kmemdup(part->parts, sizeof(*part->parts) * part->num_parts,
+			  GFP_KERNEL);
+	if (!*pparts)
+		return -ENOMEM;
+
+	return part->num_parts;
+}
+
+
+/*
+ * This is the handler for our kernel parameter, called from
+ * main.c::checksetup(). Note that we can not yet kmalloc() anything,
+ * so we only save the commandline for later processing.
+ *
+ * This function needs to be visible for bootloaders.
+ */
+static int __init mtdpart_setup(char *s)
+{
+	cmdline = s;
+	return 1;
+}
+
+__setup("mtdparts=", mtdpart_setup);
+
+static struct mtd_part_parser cmdline_parser = {
+	.parse_fn = parse_cmdline_partitions,
+	.name = "cmdlinepart",
+};
+
+static int __init cmdline_parser_init(void)
+{
+	if (mtdparts)
+		mtdpart_setup(mtdparts);
+	register_mtd_parser(&cmdline_parser);
+	return 0;
+}
+
+static void __exit cmdline_parser_exit(void)
+{
+	deregister_mtd_parser(&cmdline_parser);
+}
+
+module_init(cmdline_parser_init);
+module_exit(cmdline_parser_exit);
+
+MODULE_PARM_DESC(mtdparts, "Partitioning specification");
+module_param(mtdparts, charp, 0);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marius Groeger <mag@sysgo.de>");
+MODULE_DESCRIPTION("Command line configuration of MTD partitions");