From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- lib/raid6/test/Makefile | 137 +++++++++++++++++++++++++++++++++++++++++++ lib/raid6/test/test.c | 152 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 289 insertions(+) create mode 100644 lib/raid6/test/Makefile create mode 100644 lib/raid6/test/test.c (limited to 'lib/raid6/test') diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile new file mode 100644 index 000000000..4fb7700a7 --- /dev/null +++ b/lib/raid6/test/Makefile @@ -0,0 +1,137 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# This is a simple Makefile to test some of the RAID-6 code +# from userspace. +# + +pound := \# + +CC = gcc +OPTFLAGS = -O2 # Adjust as desired +CFLAGS = -I.. -I ../../../include -g $(OPTFLAGS) +LD = ld +AWK = awk -f +AR = ar +RANLIB = ranlib +OBJS = int1.o int2.o int4.o int8.o int16.o int32.o recov.o algos.o tables.o + +ARCH := $(shell uname -m 2>/dev/null | sed -e /s/i.86/i386/) +ifeq ($(ARCH),i386) + CFLAGS += -DCONFIG_X86_32 + IS_X86 = yes +endif +ifeq ($(ARCH),x86_64) + CFLAGS += -DCONFIG_X86_64 + IS_X86 = yes +endif + +ifeq ($(ARCH),arm) + CFLAGS += -I../../../arch/arm/include -mfpu=neon + HAS_NEON = yes +endif +ifeq ($(ARCH),aarch64) + CFLAGS += -I../../../arch/arm64/include + HAS_NEON = yes +endif + +ifeq ($(IS_X86),yes) + OBJS += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o + CFLAGS += -DCONFIG_X86 + CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" | \ + gcc -c -x assembler - >/dev/null 2>&1 && \ + rm ./-.o && echo -DCONFIG_AS_AVX512=1) +else ifeq ($(HAS_NEON),yes) + OBJS += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o + CFLAGS += -DCONFIG_KERNEL_MODE_NEON=1 +else + HAS_ALTIVEC := $(shell printf '$(pound)include \nvector int a;\n' |\ + gcc -c -x c - >/dev/null && rm ./-.o && echo yes) + ifeq ($(HAS_ALTIVEC),yes) + CFLAGS += -I../../../arch/powerpc/include + CFLAGS += -DCONFIG_ALTIVEC + OBJS += altivec1.o altivec2.o altivec4.o altivec8.o \ + vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o + endif +endif + +.c.o: + $(CC) $(CFLAGS) -c -o $@ $< + +%.c: ../%.c + cp -f $< $@ + +%.uc: ../%.uc + cp -f $< $@ + +all: raid6.a raid6test + +raid6.a: $(OBJS) + rm -f $@ + $(AR) cq $@ $^ + $(RANLIB) $@ + +raid6test: test.c raid6.a + $(CC) $(CFLAGS) -o raid6test $^ + +neon1.c: neon.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=1 < neon.uc > $@ + +neon2.c: neon.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=2 < neon.uc > $@ + +neon4.c: neon.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=4 < neon.uc > $@ + +neon8.c: neon.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=8 < neon.uc > $@ + +altivec1.c: altivec.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=1 < altivec.uc > $@ + +altivec2.c: altivec.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=2 < altivec.uc > $@ + +altivec4.c: altivec.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=4 < altivec.uc > $@ + +altivec8.c: altivec.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=8 < altivec.uc > $@ + +vpermxor1.c: vpermxor.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=1 < vpermxor.uc > $@ + +vpermxor2.c: vpermxor.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=2 < vpermxor.uc > $@ + +vpermxor4.c: vpermxor.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=4 < vpermxor.uc > $@ + +vpermxor8.c: vpermxor.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=8 < vpermxor.uc > $@ + +int1.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=1 < int.uc > $@ + +int2.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=2 < int.uc > $@ + +int4.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=4 < int.uc > $@ + +int8.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=8 < int.uc > $@ + +int16.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=16 < int.uc > $@ + +int32.c: int.uc ../unroll.awk + $(AWK) ../unroll.awk -vN=32 < int.uc > $@ + +tables.c: mktables + ./mktables > tables.c + +clean: + rm -f *.o *.a mktables mktables.c *.uc int*.c altivec*.c vpermxor*.c neon*.c tables.c raid6test + +spotless: clean + rm -f *~ diff --git a/lib/raid6/test/test.c b/lib/raid6/test/test.c new file mode 100644 index 000000000..841a55242 --- /dev/null +++ b/lib/raid6/test/test.c @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright 2002-2007 H. Peter Anvin - All Rights Reserved + * + * ----------------------------------------------------------------------- */ + +/* + * raid6test.c + * + * Test RAID-6 recovery with various algorithms + */ + +#include +#include +#include +#include + +#define NDISKS 16 /* Including P and Q */ + +const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); + +char *dataptrs[NDISKS]; +char data[NDISKS][PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); +char recovi[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); +char recovj[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); + +static void makedata(int start, int stop) +{ + int i, j; + + for (i = start; i <= stop; i++) { + for (j = 0; j < PAGE_SIZE; j++) + data[i][j] = rand(); + + dataptrs[i] = data[i]; + } +} + +static char disk_type(int d) +{ + switch (d) { + case NDISKS-2: + return 'P'; + case NDISKS-1: + return 'Q'; + default: + return 'D'; + } +} + +static int test_disks(int i, int j) +{ + int erra, errb; + + memset(recovi, 0xf0, PAGE_SIZE); + memset(recovj, 0xba, PAGE_SIZE); + + dataptrs[i] = recovi; + dataptrs[j] = recovj; + + raid6_dual_recov(NDISKS, PAGE_SIZE, i, j, (void **)&dataptrs); + + erra = memcmp(data[i], recovi, PAGE_SIZE); + errb = memcmp(data[j], recovj, PAGE_SIZE); + + if (i < NDISKS-2 && j == NDISKS-1) { + /* We don't implement the DQ failure scenario, since it's + equivalent to a RAID-5 failure (XOR, then recompute Q) */ + erra = errb = 0; + } else { + printf("algo=%-8s faila=%3d(%c) failb=%3d(%c) %s\n", + raid6_call.name, + i, disk_type(i), + j, disk_type(j), + (!erra && !errb) ? "OK" : + !erra ? "ERRB" : + !errb ? "ERRA" : "ERRAB"); + } + + dataptrs[i] = data[i]; + dataptrs[j] = data[j]; + + return erra || errb; +} + +int main(int argc, char *argv[]) +{ + const struct raid6_calls *const *algo; + const struct raid6_recov_calls *const *ra; + int i, j, p1, p2; + int err = 0; + + makedata(0, NDISKS-1); + + for (ra = raid6_recov_algos; *ra; ra++) { + if ((*ra)->valid && !(*ra)->valid()) + continue; + + raid6_2data_recov = (*ra)->data2; + raid6_datap_recov = (*ra)->datap; + + printf("using recovery %s\n", (*ra)->name); + + for (algo = raid6_algos; *algo; algo++) { + if ((*algo)->valid && !(*algo)->valid()) + continue; + + raid6_call = **algo; + + /* Nuke syndromes */ + memset(data[NDISKS-2], 0xee, 2*PAGE_SIZE); + + /* Generate assumed good syndrome */ + raid6_call.gen_syndrome(NDISKS, PAGE_SIZE, + (void **)&dataptrs); + + for (i = 0; i < NDISKS-1; i++) + for (j = i+1; j < NDISKS; j++) + err += test_disks(i, j); + + if (!raid6_call.xor_syndrome) + continue; + + for (p1 = 0; p1 < NDISKS-2; p1++) + for (p2 = p1; p2 < NDISKS-2; p2++) { + + /* Simulate rmw run */ + raid6_call.xor_syndrome(NDISKS, p1, p2, PAGE_SIZE, + (void **)&dataptrs); + makedata(p1, p2); + raid6_call.xor_syndrome(NDISKS, p1, p2, PAGE_SIZE, + (void **)&dataptrs); + + for (i = 0; i < NDISKS-1; i++) + for (j = i+1; j < NDISKS; j++) + err += test_disks(i, j); + } + + } + printf("\n"); + } + + printf("\n"); + /* Pick the best algorithm test */ + raid6_select_algo(); + + if (err) + printf("\n*** ERRORS FOUND ***\n"); + + return err; +} -- cgit v1.2.3