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, 885 insertions, 0 deletions

diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c
new file mode 100644
index 000000000..0a2d32ed3
--- /dev/null
+++ b/arch/arm64/crypto/sm4-ce-glue.c
@@ -0,0 +1,885 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4 Cipher Algorithm, using ARMv8 Crypto Extensions
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (C) 2022, Alibaba Group.
+ * Copyright (C) 2022 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/cpufeature.h>
+#include <asm/neon.h>
+#include <asm/simd.h>
+#include <crypto/b128ops.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/internal/hash.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/xts.h>
+#include <crypto/sm4.h>
+
+#define BYTES2BLKS(nbytes)	((nbytes) >> 4)
+
+asmlinkage void sm4_ce_expand_key(const u8 *key, u32 *rkey_enc, u32 *rkey_dec,
+				  const u32 *fk, const u32 *ck);
+asmlinkage void sm4_ce_crypt_block(const u32 *rkey, u8 *dst, const u8 *src);
+asmlinkage void sm4_ce_crypt(const u32 *rkey, u8 *dst, const u8 *src,
+			     unsigned int nblks);
+asmlinkage void sm4_ce_cbc_enc(const u32 *rkey, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nblocks);
+asmlinkage void sm4_ce_cbc_dec(const u32 *rkey, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nblocks);
+asmlinkage void sm4_ce_cbc_cts_enc(const u32 *rkey, u8 *dst, const u8 *src,
+				   u8 *iv, unsigned int nbytes);
+asmlinkage void sm4_ce_cbc_cts_dec(const u32 *rkey, u8 *dst, const u8 *src,
+				   u8 *iv, unsigned int nbytes);
+asmlinkage void sm4_ce_cfb_enc(const u32 *rkey, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nblks);
+asmlinkage void sm4_ce_cfb_dec(const u32 *rkey, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nblks);
+asmlinkage void sm4_ce_ctr_enc(const u32 *rkey, u8 *dst, const u8 *src,
+			       u8 *iv, unsigned int nblks);
+asmlinkage void sm4_ce_xts_enc(const u32 *rkey1, u8 *dst, const u8 *src,
+			       u8 *tweak, unsigned int nbytes,
+			       const u32 *rkey2_enc);
+asmlinkage void sm4_ce_xts_dec(const u32 *rkey1, u8 *dst, const u8 *src,
+			       u8 *tweak, unsigned int nbytes,
+			       const u32 *rkey2_enc);
+asmlinkage void sm4_ce_mac_update(const u32 *rkey_enc, u8 *digest,
+				  const u8 *src, unsigned int nblocks,
+				  bool enc_before, bool enc_after);
+
+EXPORT_SYMBOL(sm4_ce_expand_key);
+EXPORT_SYMBOL(sm4_ce_crypt_block);
+EXPORT_SYMBOL(sm4_ce_cbc_enc);
+EXPORT_SYMBOL(sm4_ce_cfb_enc);
+
+struct sm4_xts_ctx {
+	struct sm4_ctx key1;
+	struct sm4_ctx key2;
+};
+
+struct sm4_mac_tfm_ctx {
+	struct sm4_ctx key;
+	u8 __aligned(8) consts[];
+};
+
+struct sm4_mac_desc_ctx {
+	unsigned int len;
+	u8 digest[SM4_BLOCK_SIZE];
+};
+
+static int sm4_setkey(struct crypto_skcipher *tfm, const u8 *key,
+		      unsigned int key_len)
+{
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	if (key_len != SM4_KEY_SIZE)
+		return -EINVAL;
+
+	kernel_neon_begin();
+	sm4_ce_expand_key(key, ctx->rkey_enc, ctx->rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+	kernel_neon_end();
+	return 0;
+}
+
+static int sm4_xts_setkey(struct crypto_skcipher *tfm, const u8 *key,
+			  unsigned int key_len)
+{
+	struct sm4_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+	int ret;
+
+	if (key_len != SM4_KEY_SIZE * 2)
+		return -EINVAL;
+
+	ret = xts_verify_key(tfm, key, key_len);
+	if (ret)
+		return ret;
+
+	kernel_neon_begin();
+	sm4_ce_expand_key(key, ctx->key1.rkey_enc,
+			  ctx->key1.rkey_dec, crypto_sm4_fk, crypto_sm4_ck);
+	sm4_ce_expand_key(&key[SM4_KEY_SIZE], ctx->key2.rkey_enc,
+			  ctx->key2.rkey_dec, crypto_sm4_fk, crypto_sm4_ck);
+	kernel_neon_end();
+
+	return 0;
+}
+
+static int sm4_ecb_do_crypt(struct skcipher_request *req, const u32 *rkey)
+{
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	err = skcipher_walk_virt(&walk, req, false);
+
+	while ((nbytes = walk.nbytes) > 0) {
+		const u8 *src = walk.src.virt.addr;
+		u8 *dst = walk.dst.virt.addr;
+		unsigned int nblks;
+
+		kernel_neon_begin();
+
+		nblks = BYTES2BLKS(nbytes);
+		if (nblks) {
+			sm4_ce_crypt(rkey, dst, src, nblks);
+			nbytes -= nblks * SM4_BLOCK_SIZE;
+		}
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(&walk, nbytes);
+	}
+
+	return err;
+}
+
+static int sm4_ecb_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	return sm4_ecb_do_crypt(req, ctx->rkey_enc);
+}
+
+static int sm4_ecb_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	return sm4_ecb_do_crypt(req, ctx->rkey_dec);
+}
+
+static int sm4_cbc_crypt(struct skcipher_request *req,
+			 struct sm4_ctx *ctx, bool encrypt)
+{
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	err = skcipher_walk_virt(&walk, req, false);
+	if (err)
+		return err;
+
+	while ((nbytes = walk.nbytes) > 0) {
+		const u8 *src = walk.src.virt.addr;
+		u8 *dst = walk.dst.virt.addr;
+		unsigned int nblocks;
+
+		nblocks = nbytes / SM4_BLOCK_SIZE;
+		if (nblocks) {
+			kernel_neon_begin();
+
+			if (encrypt)
+				sm4_ce_cbc_enc(ctx->rkey_enc, dst, src,
+					       walk.iv, nblocks);
+			else
+				sm4_ce_cbc_dec(ctx->rkey_dec, dst, src,
+					       walk.iv, nblocks);
+
+			kernel_neon_end();
+		}
+
+		err = skcipher_walk_done(&walk, nbytes % SM4_BLOCK_SIZE);
+	}
+
+	return err;
+}
+
+static int sm4_cbc_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	return sm4_cbc_crypt(req, ctx, true);
+}
+
+static int sm4_cbc_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	return sm4_cbc_crypt(req, ctx, false);
+}
+
+static int sm4_cbc_cts_crypt(struct skcipher_request *req, bool encrypt)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct scatterlist *src = req->src;
+	struct scatterlist *dst = req->dst;
+	struct scatterlist sg_src[2], sg_dst[2];
+	struct skcipher_request subreq;
+	struct skcipher_walk walk;
+	int cbc_blocks;
+	int err;
+
+	if (req->cryptlen < SM4_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == SM4_BLOCK_SIZE)
+		return sm4_cbc_crypt(req, ctx, encrypt);
+
+	skcipher_request_set_tfm(&subreq, tfm);
+	skcipher_request_set_callback(&subreq, skcipher_request_flags(req),
+				      NULL, NULL);
+
+	/* handle the CBC cryption part */
+	cbc_blocks = DIV_ROUND_UP(req->cryptlen, SM4_BLOCK_SIZE) - 2;
+	if (cbc_blocks) {
+		skcipher_request_set_crypt(&subreq, src, dst,
+					   cbc_blocks * SM4_BLOCK_SIZE,
+					   req->iv);
+
+		err = sm4_cbc_crypt(&subreq, ctx, encrypt);
+		if (err)
+			return err;
+
+		dst = src = scatterwalk_ffwd(sg_src, src, subreq.cryptlen);
+		if (req->dst != req->src)
+			dst = scatterwalk_ffwd(sg_dst, req->dst,
+					       subreq.cryptlen);
+	}
+
+	/* handle ciphertext stealing */
+	skcipher_request_set_crypt(&subreq, src, dst,
+				   req->cryptlen - cbc_blocks * SM4_BLOCK_SIZE,
+				   req->iv);
+
+	err = skcipher_walk_virt(&walk, &subreq, false);
+	if (err)
+		return err;
+
+	kernel_neon_begin();
+
+	if (encrypt)
+		sm4_ce_cbc_cts_enc(ctx->rkey_enc, walk.dst.virt.addr,
+				   walk.src.virt.addr, walk.iv, walk.nbytes);
+	else
+		sm4_ce_cbc_cts_dec(ctx->rkey_dec, walk.dst.virt.addr,
+				   walk.src.virt.addr, walk.iv, walk.nbytes);
+
+	kernel_neon_end();
+
+	return skcipher_walk_done(&walk, 0);
+}
+
+static int sm4_cbc_cts_encrypt(struct skcipher_request *req)
+{
+	return sm4_cbc_cts_crypt(req, true);
+}
+
+static int sm4_cbc_cts_decrypt(struct skcipher_request *req)
+{
+	return sm4_cbc_cts_crypt(req, false);
+}
+
+static int sm4_cfb_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	err = skcipher_walk_virt(&walk, req, false);
+
+	while ((nbytes = walk.nbytes) > 0) {
+		const u8 *src = walk.src.virt.addr;
+		u8 *dst = walk.dst.virt.addr;
+		unsigned int nblks;
+
+		kernel_neon_begin();
+
+		nblks = BYTES2BLKS(nbytes);
+		if (nblks) {
+			sm4_ce_cfb_enc(ctx->rkey_enc, dst, src, walk.iv, nblks);
+			dst += nblks * SM4_BLOCK_SIZE;
+			src += nblks * SM4_BLOCK_SIZE;
+			nbytes -= nblks * SM4_BLOCK_SIZE;
+		}
+
+		/* tail */
+		if (walk.nbytes == walk.total && nbytes > 0) {
+			u8 keystream[SM4_BLOCK_SIZE];
+
+			sm4_ce_crypt_block(ctx->rkey_enc, keystream, walk.iv);
+			crypto_xor_cpy(dst, src, keystream, nbytes);
+			nbytes = 0;
+		}
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(&walk, nbytes);
+	}
+
+	return err;
+}
+
+static int sm4_cfb_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	err = skcipher_walk_virt(&walk, req, false);
+
+	while ((nbytes = walk.nbytes) > 0) {
+		const u8 *src = walk.src.virt.addr;
+		u8 *dst = walk.dst.virt.addr;
+		unsigned int nblks;
+
+		kernel_neon_begin();
+
+		nblks = BYTES2BLKS(nbytes);
+		if (nblks) {
+			sm4_ce_cfb_dec(ctx->rkey_enc, dst, src, walk.iv, nblks);
+			dst += nblks * SM4_BLOCK_SIZE;
+			src += nblks * SM4_BLOCK_SIZE;
+			nbytes -= nblks * SM4_BLOCK_SIZE;
+		}
+
+		/* tail */
+		if (walk.nbytes == walk.total && nbytes > 0) {
+			u8 keystream[SM4_BLOCK_SIZE];
+
+			sm4_ce_crypt_block(ctx->rkey_enc, keystream, walk.iv);
+			crypto_xor_cpy(dst, src, keystream, nbytes);
+			nbytes = 0;
+		}
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(&walk, nbytes);
+	}
+
+	return err;
+}
+
+static int sm4_ctr_crypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	err = skcipher_walk_virt(&walk, req, false);
+
+	while ((nbytes = walk.nbytes) > 0) {
+		const u8 *src = walk.src.virt.addr;
+		u8 *dst = walk.dst.virt.addr;
+		unsigned int nblks;
+
+		kernel_neon_begin();
+
+		nblks = BYTES2BLKS(nbytes);
+		if (nblks) {
+			sm4_ce_ctr_enc(ctx->rkey_enc, dst, src, walk.iv, nblks);
+			dst += nblks * SM4_BLOCK_SIZE;
+			src += nblks * SM4_BLOCK_SIZE;
+			nbytes -= nblks * SM4_BLOCK_SIZE;
+		}
+
+		/* tail */
+		if (walk.nbytes == walk.total && nbytes > 0) {
+			u8 keystream[SM4_BLOCK_SIZE];
+
+			sm4_ce_crypt_block(ctx->rkey_enc, keystream, walk.iv);
+			crypto_inc(walk.iv, SM4_BLOCK_SIZE);
+			crypto_xor_cpy(dst, src, keystream, nbytes);
+			nbytes = 0;
+		}
+
+		kernel_neon_end();
+
+		err = skcipher_walk_done(&walk, nbytes);
+	}
+
+	return err;
+}
+
+static int sm4_xts_crypt(struct skcipher_request *req, bool encrypt)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct sm4_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+	int tail = req->cryptlen % SM4_BLOCK_SIZE;
+	const u32 *rkey2_enc = ctx->key2.rkey_enc;
+	struct scatterlist sg_src[2], sg_dst[2];
+	struct skcipher_request subreq;
+	struct scatterlist *src, *dst;
+	struct skcipher_walk walk;
+	unsigned int nbytes;
+	int err;
+
+	if (req->cryptlen < SM4_BLOCK_SIZE)
+		return -EINVAL;
+
+	err = skcipher_walk_virt(&walk, req, false);
+	if (err)
+		return err;
+
+	if (unlikely(tail > 0 && walk.nbytes < walk.total)) {
+		int nblocks = DIV_ROUND_UP(req->cryptlen, SM4_BLOCK_SIZE) - 2;
+
+		skcipher_walk_abort(&walk);
+
+		skcipher_request_set_tfm(&subreq, tfm);
+		skcipher_request_set_callback(&subreq,
+					      skcipher_request_flags(req),
+					      NULL, NULL);
+		skcipher_request_set_crypt(&subreq, req->src, req->dst,
+					   nblocks * SM4_BLOCK_SIZE, req->iv);
+
+		err = skcipher_walk_virt(&walk, &subreq, false);
+		if (err)
+			return err;
+	} else {
+		tail = 0;
+	}
+
+	while ((nbytes = walk.nbytes) >= SM4_BLOCK_SIZE) {
+		if (nbytes < walk.total)
+			nbytes &= ~(SM4_BLOCK_SIZE - 1);
+
+		kernel_neon_begin();
+
+		if (encrypt)
+			sm4_ce_xts_enc(ctx->key1.rkey_enc, walk.dst.virt.addr,
+				       walk.src.virt.addr, walk.iv, nbytes,
+				       rkey2_enc);
+		else
+			sm4_ce_xts_dec(ctx->key1.rkey_dec, walk.dst.virt.addr,
+				       walk.src.virt.addr, walk.iv, nbytes,
+				       rkey2_enc);
+
+		kernel_neon_end();
+
+		rkey2_enc = NULL;
+
+		err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+		if (err)
+			return err;
+	}
+
+	if (likely(tail == 0))
+		return 0;
+
+	/* handle ciphertext stealing */
+
+	dst = src = scatterwalk_ffwd(sg_src, req->src, subreq.cryptlen);
+	if (req->dst != req->src)
+		dst = scatterwalk_ffwd(sg_dst, req->dst, subreq.cryptlen);
+
+	skcipher_request_set_crypt(&subreq, src, dst, SM4_BLOCK_SIZE + tail,
+				   req->iv);
+
+	err = skcipher_walk_virt(&walk, &subreq, false);
+	if (err)
+		return err;
+
+	kernel_neon_begin();
+
+	if (encrypt)
+		sm4_ce_xts_enc(ctx->key1.rkey_enc, walk.dst.virt.addr,
+			       walk.src.virt.addr, walk.iv, walk.nbytes,
+			       rkey2_enc);
+	else
+		sm4_ce_xts_dec(ctx->key1.rkey_dec, walk.dst.virt.addr,
+			       walk.src.virt.addr, walk.iv, walk.nbytes,
+			       rkey2_enc);
+
+	kernel_neon_end();
+
+	return skcipher_walk_done(&walk, 0);
+}
+
+static int sm4_xts_encrypt(struct skcipher_request *req)
+{
+	return sm4_xts_crypt(req, true);
+}
+
+static int sm4_xts_decrypt(struct skcipher_request *req)
+{
+	return sm4_xts_crypt(req, false);
+}
+
+static struct skcipher_alg sm4_algs[] = {
+	{
+		.base = {
+			.cra_name		= "ecb(sm4)",
+			.cra_driver_name	= "ecb-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.setkey		= sm4_setkey,
+		.encrypt	= sm4_ecb_encrypt,
+		.decrypt	= sm4_ecb_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "cbc(sm4)",
+			.cra_driver_name	= "cbc-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.setkey		= sm4_setkey,
+		.encrypt	= sm4_cbc_encrypt,
+		.decrypt	= sm4_cbc_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "cfb(sm4)",
+			.cra_driver_name	= "cfb-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= 1,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.chunksize	= SM4_BLOCK_SIZE,
+		.setkey		= sm4_setkey,
+		.encrypt	= sm4_cfb_encrypt,
+		.decrypt	= sm4_cfb_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "ctr(sm4)",
+			.cra_driver_name	= "ctr-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= 1,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.chunksize	= SM4_BLOCK_SIZE,
+		.setkey		= sm4_setkey,
+		.encrypt	= sm4_ctr_crypt,
+		.decrypt	= sm4_ctr_crypt,
+	}, {
+		.base = {
+			.cra_name		= "cts(cbc(sm4))",
+			.cra_driver_name	= "cts-cbc-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE,
+		.max_keysize	= SM4_KEY_SIZE,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.walksize	= SM4_BLOCK_SIZE * 2,
+		.setkey		= sm4_setkey,
+		.encrypt	= sm4_cbc_cts_encrypt,
+		.decrypt	= sm4_cbc_cts_decrypt,
+	}, {
+		.base = {
+			.cra_name		= "xts(sm4)",
+			.cra_driver_name	= "xts-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_xts_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.min_keysize	= SM4_KEY_SIZE * 2,
+		.max_keysize	= SM4_KEY_SIZE * 2,
+		.ivsize		= SM4_BLOCK_SIZE,
+		.walksize	= SM4_BLOCK_SIZE * 2,
+		.setkey		= sm4_xts_setkey,
+		.encrypt	= sm4_xts_encrypt,
+		.decrypt	= sm4_xts_decrypt,
+	}
+};
+
+static int sm4_cbcmac_setkey(struct crypto_shash *tfm, const u8 *key,
+			     unsigned int key_len)
+{
+	struct sm4_mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+
+	if (key_len != SM4_KEY_SIZE)
+		return -EINVAL;
+
+	kernel_neon_begin();
+	sm4_ce_expand_key(key, ctx->key.rkey_enc, ctx->key.rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+	kernel_neon_end();
+
+	return 0;
+}
+
+static int sm4_cmac_setkey(struct crypto_shash *tfm, const u8 *key,
+			   unsigned int key_len)
+{
+	struct sm4_mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+	be128 *consts = (be128 *)ctx->consts;
+	u64 a, b;
+
+	if (key_len != SM4_KEY_SIZE)
+		return -EINVAL;
+
+	memset(consts, 0, SM4_BLOCK_SIZE);
+
+	kernel_neon_begin();
+
+	sm4_ce_expand_key(key, ctx->key.rkey_enc, ctx->key.rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+
+	/* encrypt the zero block */
+	sm4_ce_crypt_block(ctx->key.rkey_enc, (u8 *)consts, (const u8 *)consts);
+
+	kernel_neon_end();
+
+	/* gf(2^128) multiply zero-ciphertext with u and u^2 */
+	a = be64_to_cpu(consts[0].a);
+	b = be64_to_cpu(consts[0].b);
+	consts[0].a = cpu_to_be64((a << 1) | (b >> 63));
+	consts[0].b = cpu_to_be64((b << 1) ^ ((a >> 63) ? 0x87 : 0));
+
+	a = be64_to_cpu(consts[0].a);
+	b = be64_to_cpu(consts[0].b);
+	consts[1].a = cpu_to_be64((a << 1) | (b >> 63));
+	consts[1].b = cpu_to_be64((b << 1) ^ ((a >> 63) ? 0x87 : 0));
+
+	return 0;
+}
+
+static int sm4_xcbc_setkey(struct crypto_shash *tfm, const u8 *key,
+			   unsigned int key_len)
+{
+	struct sm4_mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
+	u8 __aligned(8) key2[SM4_BLOCK_SIZE];
+	static u8 const ks[3][SM4_BLOCK_SIZE] = {
+		{ [0 ... SM4_BLOCK_SIZE - 1] = 0x1},
+		{ [0 ... SM4_BLOCK_SIZE - 1] = 0x2},
+		{ [0 ... SM4_BLOCK_SIZE - 1] = 0x3},
+	};
+
+	if (key_len != SM4_KEY_SIZE)
+		return -EINVAL;
+
+	kernel_neon_begin();
+
+	sm4_ce_expand_key(key, ctx->key.rkey_enc, ctx->key.rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+
+	sm4_ce_crypt_block(ctx->key.rkey_enc, key2, ks[0]);
+	sm4_ce_crypt(ctx->key.rkey_enc, ctx->consts, ks[1], 2);
+
+	sm4_ce_expand_key(key2, ctx->key.rkey_enc, ctx->key.rkey_dec,
+			  crypto_sm4_fk, crypto_sm4_ck);
+
+	kernel_neon_end();
+
+	return 0;
+}
+
+static int sm4_mac_init(struct shash_desc *desc)
+{
+	struct sm4_mac_desc_ctx *ctx = shash_desc_ctx(desc);
+
+	memset(ctx->digest, 0, SM4_BLOCK_SIZE);
+	ctx->len = 0;
+
+	return 0;
+}
+
+static int sm4_mac_update(struct shash_desc *desc, const u8 *p,
+			  unsigned int len)
+{
+	struct sm4_mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+	struct sm4_mac_desc_ctx *ctx = shash_desc_ctx(desc);
+	unsigned int l, nblocks;
+
+	if (len == 0)
+		return 0;
+
+	if (ctx->len || ctx->len + len < SM4_BLOCK_SIZE) {
+		l = min(len, SM4_BLOCK_SIZE - ctx->len);
+
+		crypto_xor(ctx->digest + ctx->len, p, l);
+		ctx->len += l;
+		len -= l;
+		p += l;
+	}
+
+	if (len && (ctx->len % SM4_BLOCK_SIZE) == 0) {
+		kernel_neon_begin();
+
+		if (len < SM4_BLOCK_SIZE && ctx->len == SM4_BLOCK_SIZE) {
+			sm4_ce_crypt_block(tctx->key.rkey_enc,
+					   ctx->digest, ctx->digest);
+			ctx->len = 0;
+		} else {
+			nblocks = len / SM4_BLOCK_SIZE;
+			len %= SM4_BLOCK_SIZE;
+
+			sm4_ce_mac_update(tctx->key.rkey_enc, ctx->digest, p,
+					  nblocks, (ctx->len == SM4_BLOCK_SIZE),
+					  (len != 0));
+
+			p += nblocks * SM4_BLOCK_SIZE;
+
+			if (len == 0)
+				ctx->len = SM4_BLOCK_SIZE;
+		}
+
+		kernel_neon_end();
+
+		if (len) {
+			crypto_xor(ctx->digest, p, len);
+			ctx->len = len;
+		}
+	}
+
+	return 0;
+}
+
+static int sm4_cmac_final(struct shash_desc *desc, u8 *out)
+{
+	struct sm4_mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+	struct sm4_mac_desc_ctx *ctx = shash_desc_ctx(desc);
+	const u8 *consts = tctx->consts;
+
+	if (ctx->len != SM4_BLOCK_SIZE) {
+		ctx->digest[ctx->len] ^= 0x80;
+		consts += SM4_BLOCK_SIZE;
+	}
+
+	kernel_neon_begin();
+	sm4_ce_mac_update(tctx->key.rkey_enc, ctx->digest, consts, 1,
+			  false, true);
+	kernel_neon_end();
+
+	memcpy(out, ctx->digest, SM4_BLOCK_SIZE);
+
+	return 0;
+}
+
+static int sm4_cbcmac_final(struct shash_desc *desc, u8 *out)
+{
+	struct sm4_mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+	struct sm4_mac_desc_ctx *ctx = shash_desc_ctx(desc);
+
+	if (ctx->len) {
+		kernel_neon_begin();
+		sm4_ce_crypt_block(tctx->key.rkey_enc, ctx->digest,
+				   ctx->digest);
+		kernel_neon_end();
+	}
+
+	memcpy(out, ctx->digest, SM4_BLOCK_SIZE);
+
+	return 0;
+}
+
+static struct shash_alg sm4_mac_algs[] = {
+	{
+		.base = {
+			.cra_name		= "cmac(sm4)",
+			.cra_driver_name	= "cmac-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_mac_tfm_ctx)
+							+ SM4_BLOCK_SIZE * 2,
+			.cra_module		= THIS_MODULE,
+		},
+		.digestsize	= SM4_BLOCK_SIZE,
+		.init		= sm4_mac_init,
+		.update		= sm4_mac_update,
+		.final		= sm4_cmac_final,
+		.setkey		= sm4_cmac_setkey,
+		.descsize	= sizeof(struct sm4_mac_desc_ctx),
+	}, {
+		.base = {
+			.cra_name		= "xcbc(sm4)",
+			.cra_driver_name	= "xcbc-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= SM4_BLOCK_SIZE,
+			.cra_ctxsize		= sizeof(struct sm4_mac_tfm_ctx)
+							+ SM4_BLOCK_SIZE * 2,
+			.cra_module		= THIS_MODULE,
+		},
+		.digestsize	= SM4_BLOCK_SIZE,
+		.init		= sm4_mac_init,
+		.update		= sm4_mac_update,
+		.final		= sm4_cmac_final,
+		.setkey		= sm4_xcbc_setkey,
+		.descsize	= sizeof(struct sm4_mac_desc_ctx),
+	}, {
+		.base = {
+			.cra_name		= "cbcmac(sm4)",
+			.cra_driver_name	= "cbcmac-sm4-ce",
+			.cra_priority		= 400,
+			.cra_blocksize		= 1,
+			.cra_ctxsize		= sizeof(struct sm4_mac_tfm_ctx),
+			.cra_module		= THIS_MODULE,
+		},
+		.digestsize	= SM4_BLOCK_SIZE,
+		.init		= sm4_mac_init,
+		.update		= sm4_mac_update,
+		.final		= sm4_cbcmac_final,
+		.setkey		= sm4_cbcmac_setkey,
+		.descsize	= sizeof(struct sm4_mac_desc_ctx),
+	}
+};
+
+static int __init sm4_init(void)
+{
+	int err;
+
+	err = crypto_register_skciphers(sm4_algs, ARRAY_SIZE(sm4_algs));
+	if (err)
+		return err;
+
+	err = crypto_register_shashes(sm4_mac_algs, ARRAY_SIZE(sm4_mac_algs));
+	if (err)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	crypto_unregister_skciphers(sm4_algs, ARRAY_SIZE(sm4_algs));
+	return err;
+}
+
+static void __exit sm4_exit(void)
+{
+	crypto_unregister_shashes(sm4_mac_algs, ARRAY_SIZE(sm4_mac_algs));
+	crypto_unregister_skciphers(sm4_algs, ARRAY_SIZE(sm4_algs));
+}
+
+module_cpu_feature_match(SM4, sm4_init);
+module_exit(sm4_exit);
+
+MODULE_DESCRIPTION("SM4 ECB/CBC/CFB/CTR/XTS using ARMv8 Crypto Extensions");
+MODULE_ALIAS_CRYPTO("sm4-ce");
+MODULE_ALIAS_CRYPTO("sm4");
+MODULE_ALIAS_CRYPTO("ecb(sm4)");
+MODULE_ALIAS_CRYPTO("cbc(sm4)");
+MODULE_ALIAS_CRYPTO("cfb(sm4)");
+MODULE_ALIAS_CRYPTO("ctr(sm4)");
+MODULE_ALIAS_CRYPTO("cts(cbc(sm4))");
+MODULE_ALIAS_CRYPTO("xts(sm4)");
+MODULE_ALIAS_CRYPTO("cmac(sm4)");
+MODULE_ALIAS_CRYPTO("xcbc(sm4)");
+MODULE_ALIAS_CRYPTO("cbcmac(sm4)");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_LICENSE("GPL v2");