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, 297 insertions, 0 deletions

diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
new file mode 100644
index 000000000..de60a70b6
--- /dev/null
+++ b/scripts/dtc/dtc-lexer.l
@@ -0,0 +1,297 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ */
+
+%option noyywrap nounput noinput never-interactive
+
+%x BYTESTRING
+%x PROPNODENAME
+%s V1
+
+PROPNODECHAR	[a-zA-Z0-9,._+*#?@-]
+PATHCHAR	({PROPNODECHAR}|[/])
+LABEL		[a-zA-Z_][a-zA-Z0-9_]*
+STRING		\"([^\\"]|\\.)*\"
+CHAR_LITERAL	'([^']|\\')*'
+WS		[[:space:]]
+COMMENT		"/*"([^*]|\*+[^*/])*\*+"/"
+LINECOMMENT	"//".*\n
+
+%{
+#include "dtc.h"
+#include "srcpos.h"
+#include "dtc-parser.tab.h"
+
+extern bool treesource_error;
+
+/* CAUTION: this will stop working if we ever use yyless() or yyunput() */
+#define	YY_USER_ACTION \
+	{ \
+		srcpos_update(&yylloc, yytext, yyleng); \
+	}
+
+/*#define LEXDEBUG	1*/
+
+#ifdef LEXDEBUG
+#define DPRINT(fmt, ...)	fprintf(stderr, fmt, ##__VA_ARGS__)
+#else
+#define DPRINT(fmt, ...)	do { } while (0)
+#endif
+
+static int dts_version = 1;
+
+#define BEGIN_DEFAULT()		DPRINT("<V1>\n"); \
+				BEGIN(V1); \
+
+static void push_input_file(const char *filename);
+static bool pop_input_file(void);
+static void PRINTF(1, 2) lexical_error(const char *fmt, ...);
+
+%}
+
+%%
+<*>"/include/"{WS}*{STRING} {
+			char *name = strchr(yytext, '\"') + 1;
+			yytext[yyleng-1] = '\0';
+			push_input_file(name);
+		}
+
+<*>^"#"(line)?[ \t]+[0-9]+[ \t]+{STRING}([ \t]+[0-9]+)* {
+			char *line, *fnstart, *fnend;
+			struct data fn;
+			/* skip text before line # */
+			line = yytext;
+			while (!isdigit((unsigned char)*line))
+				line++;
+
+			/* regexp ensures that first and list "
+			 * in the whole yytext are those at
+			 * beginning and end of the filename string */
+			fnstart = memchr(yytext, '"', yyleng);
+			for (fnend = yytext + yyleng - 1;
+			     *fnend != '"'; fnend--)
+				;
+			assert(fnstart && fnend && (fnend > fnstart));
+
+			fn = data_copy_escape_string(fnstart + 1,
+						     fnend - fnstart - 1);
+
+			/* Don't allow nuls in filenames */
+			if (memchr(fn.val, '\0', fn.len - 1))
+				lexical_error("nul in line number directive");
+
+			/* -1 since #line is the number of the next line */
+			srcpos_set_line(xstrdup(fn.val), atoi(line) - 1);
+			data_free(fn);
+		}
+
+<*><<EOF>>		{
+			if (!pop_input_file()) {
+				yyterminate();
+			}
+		}
+
+<*>{STRING}	{
+			DPRINT("String: %s\n", yytext);
+			yylval.data = data_copy_escape_string(yytext+1,
+					yyleng-2);
+			return DT_STRING;
+		}
+
+<*>"/dts-v1/"	{
+			DPRINT("Keyword: /dts-v1/\n");
+			dts_version = 1;
+			BEGIN_DEFAULT();
+			return DT_V1;
+		}
+
+<*>"/plugin/"	{
+			DPRINT("Keyword: /plugin/\n");
+			return DT_PLUGIN;
+		}
+
+<*>"/memreserve/"	{
+			DPRINT("Keyword: /memreserve/\n");
+			BEGIN_DEFAULT();
+			return DT_MEMRESERVE;
+		}
+
+<*>"/bits/"	{
+			DPRINT("Keyword: /bits/\n");
+			BEGIN_DEFAULT();
+			return DT_BITS;
+		}
+
+<*>"/delete-property/"	{
+			DPRINT("Keyword: /delete-property/\n");
+			DPRINT("<PROPNODENAME>\n");
+			BEGIN(PROPNODENAME);
+			return DT_DEL_PROP;
+		}
+
+<*>"/delete-node/"	{
+			DPRINT("Keyword: /delete-node/\n");
+			DPRINT("<PROPNODENAME>\n");
+			BEGIN(PROPNODENAME);
+			return DT_DEL_NODE;
+		}
+
+<*>"/omit-if-no-ref/"	{
+			DPRINT("Keyword: /omit-if-no-ref/\n");
+			DPRINT("<PROPNODENAME>\n");
+			BEGIN(PROPNODENAME);
+			return DT_OMIT_NO_REF;
+		}
+
+<*>{LABEL}:	{
+			DPRINT("Label: %s\n", yytext);
+			yylval.labelref = xstrdup(yytext);
+			yylval.labelref[yyleng-1] = '\0';
+			return DT_LABEL;
+		}
+
+<V1>([0-9]+|0[xX][0-9a-fA-F]+)(U|L|UL|LL|ULL)? {
+			char *e;
+			DPRINT("Integer Literal: '%s'\n", yytext);
+
+			errno = 0;
+			yylval.integer = strtoull(yytext, &e, 0);
+
+			if (*e && e[strspn(e, "UL")]) {
+				lexical_error("Bad integer literal '%s'",
+					      yytext);
+			}
+
+			if (errno == ERANGE)
+				lexical_error("Integer literal '%s' out of range",
+					      yytext);
+			else
+				/* ERANGE is the only strtoull error triggerable
+				 *  by strings matching the pattern */
+				assert(errno == 0);
+			return DT_LITERAL;
+		}
+
+<*>{CHAR_LITERAL}	{
+			struct data d;
+			DPRINT("Character literal: %s\n", yytext);
+
+			d = data_copy_escape_string(yytext+1, yyleng-2);
+			if (d.len == 1) {
+				lexical_error("Empty character literal");
+				yylval.integer = 0;
+			} else {
+				yylval.integer = (unsigned char)d.val[0];
+
+				if (d.len > 2)
+					lexical_error("Character literal has %d"
+						      " characters instead of 1",
+						      d.len - 1);
+			}
+
+			data_free(d);
+			return DT_CHAR_LITERAL;
+		}
+
+<*>\&{LABEL}	{	/* label reference */
+			DPRINT("Ref: %s\n", yytext+1);
+			yylval.labelref = xstrdup(yytext+1);
+			return DT_LABEL_REF;
+		}
+
+<*>"&{"{PATHCHAR}*\}	{	/* new-style path reference */
+			yytext[yyleng-1] = '\0';
+			DPRINT("Ref: %s\n", yytext+2);
+			yylval.labelref = xstrdup(yytext+2);
+			return DT_PATH_REF;
+		}
+
+<BYTESTRING>[0-9a-fA-F]{2} {
+			yylval.byte = strtol(yytext, NULL, 16);
+			DPRINT("Byte: %02x\n", (int)yylval.byte);
+			return DT_BYTE;
+		}
+
+<BYTESTRING>"]"	{
+			DPRINT("/BYTESTRING\n");
+			BEGIN_DEFAULT();
+			return ']';
+		}
+
+<PROPNODENAME>\\?{PROPNODECHAR}+ {
+			DPRINT("PropNodeName: %s\n", yytext);
+			yylval.propnodename = xstrdup((yytext[0] == '\\') ?
+							yytext + 1 : yytext);
+			BEGIN_DEFAULT();
+			return DT_PROPNODENAME;
+		}
+
+"/incbin/"	{
+			DPRINT("Binary Include\n");
+			return DT_INCBIN;
+		}
+
+<*>{WS}+	/* eat whitespace */
+<*>{COMMENT}+	/* eat C-style comments */
+<*>{LINECOMMENT}+ /* eat C++-style comments */
+
+<*>"<<"		{ return DT_LSHIFT; };
+<*>">>"		{ return DT_RSHIFT; };
+<*>"<="		{ return DT_LE; };
+<*>">="		{ return DT_GE; };
+<*>"=="		{ return DT_EQ; };
+<*>"!="		{ return DT_NE; };
+<*>"&&"		{ return DT_AND; };
+<*>"||"		{ return DT_OR; };
+
+<*>.		{
+			DPRINT("Char: %c (\\x%02x)\n", yytext[0],
+				(unsigned)yytext[0]);
+			if (yytext[0] == '[') {
+				DPRINT("<BYTESTRING>\n");
+				BEGIN(BYTESTRING);
+			}
+			if ((yytext[0] == '{')
+			    || (yytext[0] == ';')) {
+				DPRINT("<PROPNODENAME>\n");
+				BEGIN(PROPNODENAME);
+			}
+			return yytext[0];
+		}
+
+%%
+
+static void push_input_file(const char *filename)
+{
+	assert(filename);
+
+	srcfile_push(filename);
+
+	yyin = current_srcfile->f;
+
+	yypush_buffer_state(yy_create_buffer(yyin, YY_BUF_SIZE));
+}
+
+
+static bool pop_input_file(void)
+{
+	if (srcfile_pop() == 0)
+		return false;
+
+	yypop_buffer_state();
+	yyin = current_srcfile->f;
+
+	return true;
+}
+
+static void lexical_error(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	srcpos_verror(&yylloc, "Lexical error", fmt, ap);
+	va_end(ap);
+
+	treesource_error = true;
+}