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, 237 insertions, 0 deletions

diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c
new file mode 100644
index 000000000..7f21a8c57
--- /dev/null
+++ b/arch/ia64/kernel/patch.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Instruction-patching support.
+ *
+ * Copyright (C) 2003 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/patch.h>
+#include <asm/processor.h>
+#include <asm/sections.h>
+#include <asm/unistd.h>
+
+/*
+ * This was adapted from code written by Tony Luck:
+ *
+ * The 64-bit value in a "movl reg=value" is scattered between the two words of the bundle
+ * like this:
+ *
+ * 6  6         5         4         3         2         1
+ * 3210987654321098765432109876543210987654321098765432109876543210
+ * ABBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCDEEEEEFFFFFFFFFGGGGGGG
+ *
+ * CCCCCCCCCCCCCCCCCCxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+ * xxxxAFFFFFFFFFEEEEEDxGGGGGGGxxxxxxxxxxxxxBBBBBBBBBBBBBBBBBBBBBBB
+ */
+static u64
+get_imm64 (u64 insn_addr)
+{
+	u64 *p = (u64 *) (insn_addr & -16);	/* mask out slot number */
+
+	return ( (p[1] & 0x0800000000000000UL) << 4)  | /*A*/
+		((p[1] & 0x00000000007fffffUL) << 40) | /*B*/
+		((p[0] & 0xffffc00000000000UL) >> 24) | /*C*/
+		((p[1] & 0x0000100000000000UL) >> 23) | /*D*/
+		((p[1] & 0x0003e00000000000UL) >> 29) | /*E*/
+		((p[1] & 0x07fc000000000000UL) >> 43) | /*F*/
+		((p[1] & 0x000007f000000000UL) >> 36);  /*G*/
+}
+
+/* Patch instruction with "val" where "mask" has 1 bits. */
+void
+ia64_patch (u64 insn_addr, u64 mask, u64 val)
+{
+	u64 m0, m1, v0, v1, b0, b1, *b = (u64 *) (insn_addr & -16);
+#	define insn_mask ((1UL << 41) - 1)
+	unsigned long shift;
+
+	b0 = b[0]; b1 = b[1];
+	shift = 5 + 41 * (insn_addr % 16); /* 5 bits of template, then 3 x 41-bit instructions */
+	if (shift >= 64) {
+		m1 = mask << (shift - 64);
+		v1 = val << (shift - 64);
+	} else {
+		m0 = mask << shift; m1 = mask >> (64 - shift);
+		v0 = val  << shift; v1 = val >> (64 - shift);
+		b[0] = (b0 & ~m0) | (v0 & m0);
+	}
+	b[1] = (b1 & ~m1) | (v1 & m1);
+}
+
+void
+ia64_patch_imm64 (u64 insn_addr, u64 val)
+{
+	/* The assembler may generate offset pointing to either slot 1
+	   or slot 2 for a long (2-slot) instruction, occupying slots 1
+	   and 2.  */
+  	insn_addr &= -16UL;
+	ia64_patch(insn_addr + 2,
+		   0x01fffefe000UL, (  ((val & 0x8000000000000000UL) >> 27) /* bit 63 -> 36 */
+				     | ((val & 0x0000000000200000UL) <<  0) /* bit 21 -> 21 */
+				     | ((val & 0x00000000001f0000UL) <<  6) /* bit 16 -> 22 */
+				     | ((val & 0x000000000000ff80UL) << 20) /* bit  7 -> 27 */
+				     | ((val & 0x000000000000007fUL) << 13) /* bit  0 -> 13 */));
+	ia64_patch(insn_addr + 1, 0x1ffffffffffUL, val >> 22);
+}
+
+void
+ia64_patch_imm60 (u64 insn_addr, u64 val)
+{
+	/* The assembler may generate offset pointing to either slot 1
+	   or slot 2 for a long (2-slot) instruction, occupying slots 1
+	   and 2.  */
+  	insn_addr &= -16UL;
+	ia64_patch(insn_addr + 2,
+		   0x011ffffe000UL, (  ((val & 0x0800000000000000UL) >> 23) /* bit 59 -> 36 */
+				     | ((val & 0x00000000000fffffUL) << 13) /* bit  0 -> 13 */));
+	ia64_patch(insn_addr + 1, 0x1fffffffffcUL, val >> 18);
+}
+
+/*
+ * We need sometimes to load the physical address of a kernel
+ * object.  Often we can convert the virtual address to physical
+ * at execution time, but sometimes (either for performance reasons
+ * or during error recovery) we cannot to this.  Patch the marked
+ * bundles to load the physical address.
+ */
+void __init
+ia64_patch_vtop (unsigned long start, unsigned long end)
+{
+	s32 *offp = (s32 *) start;
+	u64 ip;
+
+	while (offp < (s32 *) end) {
+		ip = (u64) offp + *offp;
+
+		/* replace virtual address with corresponding physical address: */
+		ia64_patch_imm64(ip, ia64_tpa(get_imm64(ip)));
+		ia64_fc((void *) ip);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}
+
+/*
+ * Disable the RSE workaround by turning the conditional branch
+ * that we tagged in each place the workaround was used into an
+ * unconditional branch.
+ */
+void __init
+ia64_patch_rse (unsigned long start, unsigned long end)
+{
+	s32 *offp = (s32 *) start;
+	u64 ip, *b;
+
+	while (offp < (s32 *) end) {
+		ip = (u64) offp + *offp;
+
+		b = (u64 *)(ip & -16);
+		b[1] &= ~0xf800000L;
+		ia64_fc((void *) ip);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}
+
+void __init
+ia64_patch_mckinley_e9 (unsigned long start, unsigned long end)
+{
+	static int first_time = 1;
+	int need_workaround;
+	s32 *offp = (s32 *) start;
+	u64 *wp;
+
+	need_workaround = (local_cpu_data->family == 0x1f && local_cpu_data->model == 0);
+
+	if (first_time) {
+		first_time = 0;
+		if (need_workaround)
+			printk(KERN_INFO "Leaving McKinley Errata 9 workaround enabled\n");
+	}
+	if (need_workaround)
+		return;
+
+	while (offp < (s32 *) end) {
+		wp = (u64 *) ia64_imva((char *) offp + *offp);
+		wp[0] = 0x0000000100000011UL; /* nop.m 0; nop.i 0; br.ret.sptk.many b6 */
+		wp[1] = 0x0084006880000200UL;
+		wp[2] = 0x0000000100000000UL; /* nop.m 0; nop.i 0; nop.i 0 */
+		wp[3] = 0x0004000000000200UL;
+		ia64_fc(wp); ia64_fc(wp + 2);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}
+
+static void __init
+patch_fsyscall_table (unsigned long start, unsigned long end)
+{
+	extern unsigned long fsyscall_table[NR_syscalls];
+	s32 *offp = (s32 *) start;
+	u64 ip;
+
+	while (offp < (s32 *) end) {
+		ip = (u64) ia64_imva((char *) offp + *offp);
+		ia64_patch_imm64(ip, (u64) fsyscall_table);
+		ia64_fc((void *) ip);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}
+
+static void __init
+patch_brl_fsys_bubble_down (unsigned long start, unsigned long end)
+{
+	extern char fsys_bubble_down[];
+	s32 *offp = (s32 *) start;
+	u64 ip;
+
+	while (offp < (s32 *) end) {
+		ip = (u64) offp + *offp;
+		ia64_patch_imm60((u64) ia64_imva((void *) ip),
+				 (u64) (fsys_bubble_down - (ip & -16)) / 16);
+		ia64_fc((void *) ip);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}
+
+void __init
+ia64_patch_gate (void)
+{
+#	define START(name)	((unsigned long) __start_gate_##name##_patchlist)
+#	define END(name)	((unsigned long)__end_gate_##name##_patchlist)
+
+	patch_fsyscall_table(START(fsyscall), END(fsyscall));
+	patch_brl_fsys_bubble_down(START(brl_fsys_bubble_down), END(brl_fsys_bubble_down));
+	ia64_patch_vtop(START(vtop), END(vtop));
+	ia64_patch_mckinley_e9(START(mckinley_e9), END(mckinley_e9));
+}
+
+void ia64_patch_phys_stack_reg(unsigned long val)
+{
+	s32 * offp = (s32 *) __start___phys_stack_reg_patchlist;
+	s32 * end = (s32 *) __end___phys_stack_reg_patchlist;
+	u64 ip, mask, imm;
+
+	/* see instruction format A4: adds r1 = imm13, r3 */
+	mask = (0x3fUL << 27) | (0x7f << 13);
+	imm = (((val >> 7) & 0x3f) << 27) | (val & 0x7f) << 13;
+
+	while (offp < end) {
+		ip = (u64) offp + *offp;
+		ia64_patch(ip, mask, imm);
+		ia64_fc((void *)ip);
+		++offp;
+	}
+	ia64_sync_i();
+	ia64_srlz_i();
+}