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, 383 insertions, 0 deletions

diff --git a/lib/raid6/recov_avx512.c b/lib/raid6/recov_avx512.c
new file mode 100644
index 000000000..fd9e15bf3
--- /dev/null
+++ b/lib/raid6/recov_avx512.c
@@ -0,0 +1,383 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2016 Intel Corporation
+ *
+ * Author: Gayatri Kammela <gayatri.kammela@intel.com>
+ * Author: Megha Dey <megha.dey@linux.intel.com>
+ */
+
+#ifdef CONFIG_AS_AVX512
+
+#include <linux/raid/pq.h>
+#include "x86.h"
+
+static int raid6_has_avx512(void)
+{
+	return boot_cpu_has(X86_FEATURE_AVX2) &&
+		boot_cpu_has(X86_FEATURE_AVX) &&
+		boot_cpu_has(X86_FEATURE_AVX512F) &&
+		boot_cpu_has(X86_FEATURE_AVX512BW) &&
+		boot_cpu_has(X86_FEATURE_AVX512VL) &&
+		boot_cpu_has(X86_FEATURE_AVX512DQ);
+}
+
+static void raid6_2data_recov_avx512(int disks, size_t bytes, int faila,
+				     int failb, void **ptrs)
+{
+	u8 *p, *q, *dp, *dq;
+	const u8 *pbmul;	/* P multiplier table for B data */
+	const u8 *qmul;		/* Q multiplier table (for both) */
+	const u8 x0f = 0x0f;
+
+	p = (u8 *)ptrs[disks-2];
+	q = (u8 *)ptrs[disks-1];
+
+	/*
+	 * Compute syndrome with zero for the missing data pages
+	 * Use the dead data pages as temporary storage for
+	 * delta p and delta q
+	 */
+
+	dp = (u8 *)ptrs[faila];
+	ptrs[faila] = (void *)raid6_empty_zero_page;
+	ptrs[disks-2] = dp;
+	dq = (u8 *)ptrs[failb];
+	ptrs[failb] = (void *)raid6_empty_zero_page;
+	ptrs[disks-1] = dq;
+
+	raid6_call.gen_syndrome(disks, bytes, ptrs);
+
+	/* Restore pointer table */
+	ptrs[faila]   = dp;
+	ptrs[failb]   = dq;
+	ptrs[disks-2] = p;
+	ptrs[disks-1] = q;
+
+	/* Now, pick the proper data tables */
+	pbmul = raid6_vgfmul[raid6_gfexi[failb-faila]];
+	qmul  = raid6_vgfmul[raid6_gfinv[raid6_gfexp[faila] ^
+		raid6_gfexp[failb]]];
+
+	kernel_fpu_begin();
+
+	/* zmm0 = x0f[16] */
+	asm volatile("vpbroadcastb %0, %%zmm7" : : "m" (x0f));
+
+	while (bytes) {
+#ifdef CONFIG_X86_64
+		asm volatile("vmovdqa64 %0, %%zmm1\n\t"
+			     "vmovdqa64 %1, %%zmm9\n\t"
+			     "vmovdqa64 %2, %%zmm0\n\t"
+			     "vmovdqa64 %3, %%zmm8\n\t"
+			     "vpxorq %4, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %5, %%zmm9, %%zmm9\n\t"
+			     "vpxorq %6, %%zmm0, %%zmm0\n\t"
+			     "vpxorq %7, %%zmm8, %%zmm8"
+			     :
+			     : "m" (q[0]), "m" (q[64]), "m" (p[0]),
+			       "m" (p[64]), "m" (dq[0]), "m" (dq[64]),
+			       "m" (dp[0]), "m" (dp[64]));
+
+		/*
+		 * 1 = dq[0]  ^ q[0]
+		 * 9 = dq[64] ^ q[64]
+		 * 0 = dp[0]  ^ p[0]
+		 * 8 = dp[64] ^ p[64]
+		 */
+
+		asm volatile("vbroadcasti64x2 %0, %%zmm4\n\t"
+			     "vbroadcasti64x2 %1, %%zmm5"
+			     :
+			     : "m" (qmul[0]), "m" (qmul[16]));
+
+		asm volatile("vpsraw $4, %%zmm1, %%zmm3\n\t"
+			     "vpsraw $4, %%zmm9, %%zmm12\n\t"
+			     "vpandq %%zmm7, %%zmm1, %%zmm1\n\t"
+			     "vpandq %%zmm7, %%zmm9, %%zmm9\n\t"
+			     "vpandq %%zmm7, %%zmm3, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm12, %%zmm12\n\t"
+			     "vpshufb %%zmm9, %%zmm4, %%zmm14\n\t"
+			     "vpshufb %%zmm1, %%zmm4, %%zmm4\n\t"
+			     "vpshufb %%zmm12, %%zmm5, %%zmm15\n\t"
+			     "vpshufb %%zmm3, %%zmm5, %%zmm5\n\t"
+			     "vpxorq %%zmm14, %%zmm15, %%zmm15\n\t"
+			     "vpxorq %%zmm4, %%zmm5, %%zmm5"
+			     :
+			     : );
+
+		/*
+		 * 5 = qx[0]
+		 * 15 = qx[64]
+		 */
+
+		asm volatile("vbroadcasti64x2 %0, %%zmm4\n\t"
+			     "vbroadcasti64x2 %1, %%zmm1\n\t"
+			     "vpsraw $4, %%zmm0, %%zmm2\n\t"
+			     "vpsraw $4, %%zmm8, %%zmm6\n\t"
+			     "vpandq %%zmm7, %%zmm0, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm8, %%zmm14\n\t"
+			     "vpandq %%zmm7, %%zmm2, %%zmm2\n\t"
+			     "vpandq %%zmm7, %%zmm6, %%zmm6\n\t"
+			     "vpshufb %%zmm14, %%zmm4, %%zmm12\n\t"
+			     "vpshufb %%zmm3, %%zmm4, %%zmm4\n\t"
+			     "vpshufb %%zmm6, %%zmm1, %%zmm13\n\t"
+			     "vpshufb %%zmm2, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm4, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm12, %%zmm13, %%zmm13"
+			     :
+			     : "m" (pbmul[0]), "m" (pbmul[16]));
+
+		/*
+		 * 1  = pbmul[px[0]]
+		 * 13 = pbmul[px[64]]
+		 */
+		asm volatile("vpxorq %%zmm5, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm15, %%zmm13, %%zmm13"
+			     :
+			     : );
+
+		/*
+		 * 1 = db = DQ
+		 * 13 = db[64] = DQ[64]
+		 */
+		asm volatile("vmovdqa64 %%zmm1, %0\n\t"
+			     "vmovdqa64 %%zmm13,%1\n\t"
+			     "vpxorq %%zmm1, %%zmm0, %%zmm0\n\t"
+			     "vpxorq %%zmm13, %%zmm8, %%zmm8"
+			     :
+			     : "m" (dq[0]), "m" (dq[64]));
+
+		asm volatile("vmovdqa64 %%zmm0, %0\n\t"
+			     "vmovdqa64 %%zmm8, %1"
+			     :
+			     : "m" (dp[0]), "m" (dp[64]));
+
+		bytes -= 128;
+		p += 128;
+		q += 128;
+		dp += 128;
+		dq += 128;
+#else
+		asm volatile("vmovdqa64 %0, %%zmm1\n\t"
+			     "vmovdqa64 %1, %%zmm0\n\t"
+			     "vpxorq %2, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %3, %%zmm0, %%zmm0"
+			     :
+			     : "m" (*q), "m" (*p), "m"(*dq), "m" (*dp));
+
+		/* 1 = dq ^ q;  0 = dp ^ p */
+
+		asm volatile("vbroadcasti64x2 %0, %%zmm4\n\t"
+			     "vbroadcasti64x2 %1, %%zmm5"
+			     :
+			     : "m" (qmul[0]), "m" (qmul[16]));
+
+		/*
+		 * 1 = dq ^ q
+		 * 3 = dq ^ p >> 4
+		 */
+		asm volatile("vpsraw $4, %%zmm1, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm1, %%zmm1\n\t"
+			     "vpandq %%zmm7, %%zmm3, %%zmm3\n\t"
+			     "vpshufb %%zmm1, %%zmm4, %%zmm4\n\t"
+			     "vpshufb %%zmm3, %%zmm5, %%zmm5\n\t"
+			     "vpxorq %%zmm4, %%zmm5, %%zmm5"
+			     :
+			     : );
+
+		/* 5 = qx */
+
+		asm volatile("vbroadcasti64x2 %0, %%zmm4\n\t"
+			     "vbroadcasti64x2 %1, %%zmm1"
+			     :
+			     : "m" (pbmul[0]), "m" (pbmul[16]));
+
+		asm volatile("vpsraw $4, %%zmm0, %%zmm2\n\t"
+			     "vpandq %%zmm7, %%zmm0, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm2, %%zmm2\n\t"
+			     "vpshufb %%zmm3, %%zmm4, %%zmm4\n\t"
+			     "vpshufb %%zmm2, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm4, %%zmm1, %%zmm1"
+			     :
+			     : );
+
+		/* 1 = pbmul[px] */
+		asm volatile("vpxorq %%zmm5, %%zmm1, %%zmm1\n\t"
+			     /* 1 = db = DQ */
+			     "vmovdqa64 %%zmm1, %0\n\t"
+			     :
+			     : "m" (dq[0]));
+
+		asm volatile("vpxorq %%zmm1, %%zmm0, %%zmm0\n\t"
+			     "vmovdqa64 %%zmm0, %0"
+			     :
+			     : "m" (dp[0]));
+
+		bytes -= 64;
+		p += 64;
+		q += 64;
+		dp += 64;
+		dq += 64;
+#endif
+	}
+
+	kernel_fpu_end();
+}
+
+static void raid6_datap_recov_avx512(int disks, size_t bytes, int faila,
+				     void **ptrs)
+{
+	u8 *p, *q, *dq;
+	const u8 *qmul;		/* Q multiplier table */
+	const u8 x0f = 0x0f;
+
+	p = (u8 *)ptrs[disks-2];
+	q = (u8 *)ptrs[disks-1];
+
+	/*
+	 * Compute syndrome with zero for the missing data page
+	 * Use the dead data page as temporary storage for delta q
+	 */
+
+	dq = (u8 *)ptrs[faila];
+	ptrs[faila] = (void *)raid6_empty_zero_page;
+	ptrs[disks-1] = dq;
+
+	raid6_call.gen_syndrome(disks, bytes, ptrs);
+
+	/* Restore pointer table */
+	ptrs[faila]   = dq;
+	ptrs[disks-1] = q;
+
+	/* Now, pick the proper data tables */
+	qmul  = raid6_vgfmul[raid6_gfinv[raid6_gfexp[faila]]];
+
+	kernel_fpu_begin();
+
+	asm volatile("vpbroadcastb %0, %%zmm7" : : "m" (x0f));
+
+	while (bytes) {
+#ifdef CONFIG_X86_64
+		asm volatile("vmovdqa64 %0, %%zmm3\n\t"
+			     "vmovdqa64 %1, %%zmm8\n\t"
+			     "vpxorq %2, %%zmm3, %%zmm3\n\t"
+			     "vpxorq %3, %%zmm8, %%zmm8"
+			     :
+			     : "m" (dq[0]), "m" (dq[64]), "m" (q[0]),
+			       "m" (q[64]));
+
+		/*
+		 * 3 = q[0] ^ dq[0]
+		 * 8 = q[64] ^ dq[64]
+		 */
+		asm volatile("vbroadcasti64x2 %0, %%zmm0\n\t"
+			     "vmovapd %%zmm0, %%zmm13\n\t"
+			     "vbroadcasti64x2 %1, %%zmm1\n\t"
+			     "vmovapd %%zmm1, %%zmm14"
+			     :
+			     : "m" (qmul[0]), "m" (qmul[16]));
+
+		asm volatile("vpsraw $4, %%zmm3, %%zmm6\n\t"
+			     "vpsraw $4, %%zmm8, %%zmm12\n\t"
+			     "vpandq %%zmm7, %%zmm3, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm8, %%zmm8\n\t"
+			     "vpandq %%zmm7, %%zmm6, %%zmm6\n\t"
+			     "vpandq %%zmm7, %%zmm12, %%zmm12\n\t"
+			     "vpshufb %%zmm3, %%zmm0, %%zmm0\n\t"
+			     "vpshufb %%zmm8, %%zmm13, %%zmm13\n\t"
+			     "vpshufb %%zmm6, %%zmm1, %%zmm1\n\t"
+			     "vpshufb %%zmm12, %%zmm14, %%zmm14\n\t"
+			     "vpxorq %%zmm0, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm13, %%zmm14, %%zmm14"
+			     :
+			     : );
+
+		/*
+		 * 1  = qmul[q[0]  ^ dq[0]]
+		 * 14 = qmul[q[64] ^ dq[64]]
+		 */
+		asm volatile("vmovdqa64 %0, %%zmm2\n\t"
+			     "vmovdqa64 %1, %%zmm12\n\t"
+			     "vpxorq %%zmm1, %%zmm2, %%zmm2\n\t"
+			     "vpxorq %%zmm14, %%zmm12, %%zmm12"
+			     :
+			     : "m" (p[0]), "m" (p[64]));
+
+		/*
+		 * 2  = p[0]  ^ qmul[q[0]  ^ dq[0]]
+		 * 12 = p[64] ^ qmul[q[64] ^ dq[64]]
+		 */
+
+		asm volatile("vmovdqa64 %%zmm1, %0\n\t"
+			     "vmovdqa64 %%zmm14, %1\n\t"
+			     "vmovdqa64 %%zmm2, %2\n\t"
+			     "vmovdqa64 %%zmm12,%3"
+			     :
+			     : "m" (dq[0]), "m" (dq[64]), "m" (p[0]),
+			       "m" (p[64]));
+
+		bytes -= 128;
+		p += 128;
+		q += 128;
+		dq += 128;
+#else
+		asm volatile("vmovdqa64 %0, %%zmm3\n\t"
+			     "vpxorq %1, %%zmm3, %%zmm3"
+			     :
+			     : "m" (dq[0]), "m" (q[0]));
+
+		/* 3 = q ^ dq */
+
+		asm volatile("vbroadcasti64x2 %0, %%zmm0\n\t"
+			     "vbroadcasti64x2 %1, %%zmm1"
+			     :
+			     : "m" (qmul[0]), "m" (qmul[16]));
+
+		asm volatile("vpsraw $4, %%zmm3, %%zmm6\n\t"
+			     "vpandq %%zmm7, %%zmm3, %%zmm3\n\t"
+			     "vpandq %%zmm7, %%zmm6, %%zmm6\n\t"
+			     "vpshufb %%zmm3, %%zmm0, %%zmm0\n\t"
+			     "vpshufb %%zmm6, %%zmm1, %%zmm1\n\t"
+			     "vpxorq %%zmm0, %%zmm1, %%zmm1"
+			     :
+			     : );
+
+		/* 1 = qmul[q ^ dq] */
+
+		asm volatile("vmovdqa64 %0, %%zmm2\n\t"
+			     "vpxorq %%zmm1, %%zmm2, %%zmm2"
+			     :
+			     : "m" (p[0]));
+
+		/* 2 = p ^ qmul[q ^ dq] */
+
+		asm volatile("vmovdqa64 %%zmm1, %0\n\t"
+			     "vmovdqa64 %%zmm2, %1"
+			     :
+			     : "m" (dq[0]), "m" (p[0]));
+
+		bytes -= 64;
+		p += 64;
+		q += 64;
+		dq += 64;
+#endif
+	}
+
+	kernel_fpu_end();
+}
+
+const struct raid6_recov_calls raid6_recov_avx512 = {
+	.data2 = raid6_2data_recov_avx512,
+	.datap = raid6_datap_recov_avx512,
+	.valid = raid6_has_avx512,
+#ifdef CONFIG_X86_64
+	.name = "avx512x2",
+#else
+	.name = "avx512x1",
+#endif
+	.priority = 3,
+};
+
+#else
+#warning "your version of binutils lacks AVX512 support"
+#endif