* Re: [PATCH v2] fm10k: Add skb->xmit_more support
From: Jeff Kirsher @ 2014-10-11 11:14 UTC (permalink / raw)
To: alexander.duyck; +Cc: e1000-devel, netdev, davem, matthew.vick
In-Reply-To: <20141010213013.20973.19209.stgit@ahduyck-workstation.home>
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On Fri, 2014-10-10 at 14:30 -0700, alexander.duyck@gmail.com wrote:
> From: Alexander Duyck <alexander.h.duyck@redhat.com>
>
> This change adds support for skb->xmit_more based on the changes that
> were
> made to igb to support the feature. The main changes are moving up
> the
> check for maybe_stop_tx so that we can check netif_xmit_stopped to
> determine
> if we must write the tail because we can add no further buffers.
>
> Acked-by: Matthew Vick <matthew.vick@intel.com>
> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
> ---
>
> v2: Minor fix to patch description for typo.
>
> drivers/net/ethernet/intel/fm10k/fm10k_main.c | 65
> +++++++++++++------------
> 1 file changed, 34 insertions(+), 31 deletions(-)
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Its like you never left Intel Alex... :-)
Dave, please pull this.
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^ permalink raw reply
* Re: [PATCH net 1/1] hyperv: Fix a bug in netvsc_send()
From: Sitsofe Wheeler @ 2014-10-11 10:36 UTC (permalink / raw)
To: Long Li
Cc: olaf@aepfle.de, netdev@vger.kernel.org, jasowang@redhat.com,
linux-kernel@vger.kernel.org, apw@canonical.com,
devel@linuxdriverproject.org, David Miller
In-Reply-To: <96f3d4f6b90a461686b23f64aedcb4fc@BL2PR03MB132.namprd03.prod.outlook.com>
On Fri, Oct 10, 2014 at 11:39:00PM +0000, Long Li wrote:
> Thanks Sitsofe. Can you provide more details on the test setup?
>
> The kernel trace shows that skb->mac_header=0xffff (which means not
> yet set, it's in RCX: 000000000000ffff).
See reply below.
> -----Original Message-----
> From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On Behalf Of Sitsofe Wheeler
> Sent: Thursday, October 09, 2014 6:32 AM
> To: David Miller
> Cc: olaf@aepfle.de; netdev@vger.kernel.org; jasowang@redhat.com;
> linux-kernel@vger.kernel.org; apw@canonical.com;
> devel@linuxdriverproject.org Subject: Re: [PATCH net 1/1] hyperv: Fix
> a bug in netvsc_send()
>
> On Sun, Oct 05, 2014 at 09:11:29PM -0400, David Miller wrote:
> > From: "K. Y. Srinivasan" <kys@microsoft.com>
> > Date: Sun, 5 Oct 2014 10:42:51 -0700
> >
> > > After the packet is successfully sent, we should not touch the
> > > packet as it may have been freed. This patch is based on the work
> > > done by Long Li <longli@microsoft.com>.
> > >
> > > David, please queue this up for stable.
>
> With 3.17.0 g782d59c (which should include this patch) I'm still seeing the following:
>
> Oct 09 13:14:51 a dhclient[538]: DHCPREQUEST on eth0 to 255.255.255.255 port 67 (xid=0x1dd33078) Oct 09 13:14:51 a dhclient[538]: DHCPACK from 10.x.x.x (xid=0x1dd33078) Oct 09 13:14:55 a kernel: BUG: unable to handle kernel paging request at ffff8800ed2e72e3 Oct 09 13:14:55 a kernel: IP: [<ffffffff814ede1d>] netvsc_select_queue+0x3d/0x150 Oct 09 13:14:55 a kernel: PGD 2db5067 PUD 2075be067 PMD 207454067 PTE 80000000ed2e7060 Oct 09 13:14:55 a kernel: Oops: 0000 [#1] SMP DEBUG_PAGEALLOC Oct 09 13:14:55 a kernel: CPU: 6 PID: 566 Comm: arping Not tainted 3.17.0.x86_64-05585-g782d59c #147 Oct 09 13:14:55 a kernel: Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 Oct 09 13:14:55 a kernel: task: ffff8801f978b9f0 ti: ffff8801f3b84000 task.ti: ffff8801
f3b84000 Oct 09 13:14:55 a kernel: RIP: 0010:[<ffffffff814ede1d>] [<ffffffff814ede1d>] netvsc_select_queue+0x3d/0x150 Oct 09 13:14:55 a kernel: RSP: 0018:ffff8801f3b87c60 EFLAGS: 00010202
Oct 09 13:14:55 a kernel: RAX: 0000000000000000 RBX: ffff8800f13e8000 RCX: 000000000000ffff Oct 09 13:14:55 a kernel: RDX: ffff8800ed2d72d8 RSI: ffff8801fabca1c0 RDI: ffff8800f13e8000 Oct 09 13:14:55 a kernel: RBP: ffff8801f3b87c88 R08: 000000000000002a R09: 0000000000000000 Oct 09 13:14:55 a kernel: R10: ffff8801f83b3f60 R11: 0000000000000008 R12: ffff8801fabca1c0 Oct 09 13:14:55 a kernel: R13: 0000000000000000 R14: ffff8800ed359bd8 R15: ffff8801fabca1c0 Oct 09 13:14:55 a kernel: FS: 00007f943a5c9740(0000) GS:ffff880206cc0000(0000) knlGS:0000000000000000 Oct 09 13:14:55 a kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 09 13:14:55 a kernel: CR2: ffff8800ed2e72e3 CR3: 00000001f3957000 CR4: 00000000000406e0 Oct 09 13:14:55 a kernel: Stack:
I'm not quite sure what's happened to the formatting above but oh well.
My kernel config is essentially the same as the one described in
https://lkml.org/lkml/2014/8/19/708 but the key might be that it is
configured to do extra verification setup/checks. The guest is currently
configured to have 8 vpcus and 8GBytes of RAM.
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.17.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=".x86_64"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
# CONFIG_TICK_CPU_ACCOUNTING is not set
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_RCU_USER_QS is not set
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
CONFIG_ARCH_USES_NUMA_PROT_NONE=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_NUMA_BALANCING=y
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_MEMCG=y
CONFIG_MEMCG_KMEM=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_JUMP_LABEL=y
CONFIG_UPROBES=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_CFQ_GROUP_IOSCHED=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUE_RWLOCK=y
CONFIG_QUEUE_RWLOCK=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
# CONFIG_X86_UV is not set
# CONFIG_X86_GOLDFISH is not set
CONFIG_X86_INTEL_LPSS=y
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_PARAVIRT_SPINLOCKS is not set
# CONFIG_XEN is not set
# CONFIG_KVM_GUEST is not set
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=16
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
# CONFIG_MICROCODE_INTEL_EARLY is not set
# CONFIG_MICROCODE_AMD_EARLY is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=9
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTREMOVE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
# CONFIG_HWPOISON_INJECT is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_CLEANCACHE=y
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
CONFIG_EFI=y
CONFIG_EFI_STUB=y
# CONFIG_EFI_MIXED is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
# CONFIG_SUSPEND is not set
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
# CONFIG_ACPI_PROCFS_POWER is not set
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_INITRD_TABLE_OVERRIDE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
# CONFIG_ACPI_SBS is not set
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_EXTLOG is not set
CONFIG_SFI=y
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
#
# x86 CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_ACPI_CPUFREQ is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set
#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIE_ECRC=y
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_IOAPIC=y
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
# CONFIG_HOTPLUG_PCI_ACPI_IBM is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
# CONFIG_IA32_EMULATION is not set
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_IOSF_MBI=y
CONFIG_PMC_ATOM=y
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_GENEVE is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_TCP_CONG_DCTCP is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
# CONFIG_IPV6 is not set
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set
#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_AUDIT is not set
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_SECMARK is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
CONFIG_NF_REJECT_IPV4=y
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
# CONFIG_IP_NF_ARPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFB is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_MQPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
# CONFIG_NET_SCH_INGRESS is not set
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_CLS_BPF is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
# CONFIG_NET_EMATCH_CMP is not set
# CONFIG_NET_EMATCH_NBYTE is not set
# CONFIG_NET_EMATCH_U32 is not set
# CONFIG_NET_EMATCH_META is not set
# CONFIG_NET_EMATCH_TEXT is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_IPT is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_MMAP=y
# CONFIG_NETLINK_DIAG is not set
# CONFIG_NET_MPLS_GSO is not set
# CONFIG_HSR is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NET_DROP_MONITOR=y
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
# CONFIG_DMA_SHARED_BUFFER is not set
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_BLK_DEV_SKD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Bus Driver
#
# CONFIG_INTEL_MIC_BUS is not set
#
# Intel MIC Host Driver
#
#
# Intel MIC Card Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=y
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ISCSI_TCP=y
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
# CONFIG_MEGARAID_MM is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_VMWARE_PVSCSI is not set
CONFIG_HYPERV_STORAGE=y
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
CONFIG_SCSI_DH=y
# CONFIG_SCSI_DH_RDAC is not set
# CONFIG_SCSI_DH_HP_SW is not set
# CONFIG_SCSI_DH_EMC is not set
# CONFIG_SCSI_DH_ALUA is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
CONFIG_PATA_ACPI=y
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BCACHE=y
CONFIG_BCACHE_DEBUG=y
# CONFIG_BCACHE_CLOSURES_DEBUG is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=y
CONFIG_DM_BIO_PRISON=y
CONFIG_DM_PERSISTENT_DATA=y
# CONFIG_DM_DEBUG_BLOCK_STACK_TRACING is not set
# CONFIG_DM_CRYPT is not set
CONFIG_DM_SNAPSHOT=y
# CONFIG_DM_THIN_PROVISIONING is not set
CONFIG_DM_CACHE=y
CONFIG_DM_CACHE_MQ=y
CONFIG_DM_CACHE_CLEANER=y
# CONFIG_DM_ERA is not set
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
# CONFIG_DM_RAID is not set
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=y
CONFIG_DM_MULTIPATH_QL=y
CONFIG_DM_MULTIPATH_ST=y
CONFIG_DM_DELAY=y
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=y
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set
#
# CAIF transport drivers
#
#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
# CONFIG_NET_DSA_MV88E6171 is not set
# CONFIG_NET_DSA_BCM_SF2 is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_XGENE is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_IP1000 is not set
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_MLX5_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_QLGE is not set
# CONFIG_NETXEN_NIC is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
# CONFIG_SFC is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
#
# Host-side USB support is needed for USB Network Adapter support
#
# CONFIG_WLAN is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
CONFIG_HYPERV_NET=y
# CONFIG_ISDN is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
CONFIG_HYPERV_KEYBOARD=y
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_NOZOMI is not set
# CONFIG_ISI is not set
# CONFIG_N_HDLC is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_FINTEK is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_KGDB_NMI is not set
# CONFIG_SERIAL_MFD_HSU is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_INTEL is not set
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_VIA is not set
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
# CONFIG_ACPI_I2C_OPREGION is not set
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_I801 is not set
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
CONFIG_I2C_PIIX4=y
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
#
# PPS support
#
# CONFIG_PPS is not set
#
# PPS generators support
#
#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
# CONFIG_DP83640_PHY is not set
CONFIG_PINCTRL=y
#
# Pin controllers
#
# CONFIG_DEBUG_PINCTRL is not set
CONFIG_PINCTRL_BAYTRAIL=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
#
# Memory mapped GPIO drivers:
#
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_IT8761E is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_LYNXPOINT is not set
#
# I2C GPIO expanders:
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_SX150X is not set
# CONFIG_GPIO_ADP5588 is not set
#
# PCI GPIO expanders:
#
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_INTEL_MID is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders:
#
#
# AC97 GPIO expanders:
#
#
# LPC GPIO expanders:
#
#
# MODULbus GPIO expanders:
#
#
# USB GPIO expanders:
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_SMB347 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_HTU21 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
# CONFIG_X86_PKG_TEMP_THERMAL is not set
# CONFIG_ACPI_INT3403_THERMAL is not set
# CONFIG_INTEL_SOC_DTS_THERMAL is not set
#
# Texas Instruments thermal drivers
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_AXP20X is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_INTEL_SOC_PMIC is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
#
# Direct Rendering Manager
#
# CONFIG_DRM is not set
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
# CONFIG_FB_MODE_HELPERS is not set
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
CONFIG_FB_HYPERV=y
# CONFIG_FB_SIMPLE is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# CONFIG_SOUND is not set
#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
CONFIG_HID_HYPERV_MOUSE=y
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_LM355x is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
CONFIG_ACCESSIBILITY=y
CONFIG_A11Y_BRAILLE_CONSOLE=y
# CONFIG_INFINIBAND is not set
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
# CONFIG_RTC_SYSTOHC is not set
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_EFI is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_XGENE is not set
#
# HID Sensor RTC drivers
#
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
# CONFIG_INTEL_MID_DMAC is not set
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_DW_DMAC_CORE is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
CONFIG_DMA_ACPI=y
CONFIG_AUXDISPLAY=y
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
CONFIG_HYPERV=y
CONFIG_HYPERV_UTILS=y
CONFIG_HYPERV_BALLOON=y
CONFIG_STAGING=y
# CONFIG_SLICOSS is not set
# CONFIG_RTS5208 is not set
# CONFIG_FB_XGI is not set
# CONFIG_FT1000 is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_CLEARPAD_TM1217 is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
CONFIG_STAGING_MEDIA=y
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
# CONFIG_GS_FPGABOOT is not set
# CONFIG_CRYPTO_SKEIN is not set
# CONFIG_CRYPTO_THREEFISH is not set
# CONFIG_UNISYSSPAR is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_INTEL_RST is not set
CONFIG_INTEL_SMARTCONNECT=y
# CONFIG_PVPANIC is not set
CONFIG_CHROME_PLATFORMS=y
# CONFIG_CHROMEOS_LAPTOP is not set
# CONFIG_CHROMEOS_PSTORE is not set
#
# SOC (System On Chip) specific Drivers
#
# CONFIG_SOC_TI is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
#
# Common Clock Framework
#
# CONFIG_COMMON_CLK_SI5351 is not set
#
# Hardware Spinlock drivers
#
#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
# CONFIG_AMD_IOMMU_V2 is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_IRQ_REMAP=y
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
CONFIG_RAS=y
# CONFIG_THUNDERBOLT is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_VARS_PSTORE=y
CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
# CONFIG_FUSE_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EFIVAR_FS=y
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
CONFIG_READABLE_ASM=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_WANT_PAGE_DEBUG_FLAGS=y
CONFIG_PAGE_GUARD=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
CONFIG_SLUB_DEBUG_ON=y
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_VMACACHE=y
CONFIG_DEBUG_VM_RB=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_DEBUG_SHIRQ=y
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=0
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
CONFIG_TIMER_STATS=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
CONFIG_TRACE_IRQFLAGS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_KOBJECT_RELEASE is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_PI_LIST=y
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_DEBUG_CREDENTIALS=y
#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
CONFIG_SPARSE_RCU_POINTER=y
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_CPU_STALL_INFO is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
CONFIG_FAIL_MAKE_REQUEST=y
# CONFIG_FAIL_IO_TIMEOUT is not set
# CONFIG_FAULT_INJECTION_DEBUG_FS is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_UPROBE_EVENT=y
CONFIG_PROBE_EVENTS=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
CONFIG_ATOMIC64_SELFTEST=y
# CONFIG_TEST_STRING_HELPERS is not set
CONFIG_TEST_KSTRTOX=y
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
CONFIG_DMA_API_DEBUG=y
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
CONFIG_KGDB_TESTS=y
# CONFIG_KGDB_TESTS_ON_BOOT is not set
CONFIG_KGDB_LOW_LEVEL_TRAP=y
CONFIG_KGDB_KDB=y
CONFIG_KDB_KEYBOARD=y
CONFIG_KDB_CONTINUE_CATASTROPHIC=0
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_EFI=y
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_RODATA=y
CONFIG_DEBUG_RODATA_TEST=y
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_STATIC_CPU_HAS=y
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_INTEL_TXT=y
CONFIG_LSM_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
# CONFIG_IMA is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
# CONFIG_CRYPTO_MCRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_ABLK_HELPER=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y
#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_SEQIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=y
#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
# CONFIG_CRYPTO_CRC32 is not set
CONFIG_CRYPTO_CRC32_PCLMUL=y
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=y
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
# CONFIG_CRYPTO_SHA1_MB is not set
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=y
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_AES_NI_INTEL=y
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_X86_64 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
# CONFIG_CRYPTO_DEV_CCP is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_PERCPU_RWSEM=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
# CONFIG_CPUMASK_OFFSTACK is not set
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_ARCH_HAS_SG_CHAIN=y
--
Sitsofe | http://sucs.org/~sits/
^ permalink raw reply
* [bisected] e341694e3eb5 netlink_lookup() rcu conversion causes latencies
From: Heiko Carstens @ 2014-10-11 8:36 UTC (permalink / raw)
To: Thomas Graf, Nikolay Aleksandrov, David S. Miller
Cc: netdev, linux-kernel, Ursula Braun
Hi all,
it just came to my attention that commit e341694e3eb5
"netlink: Convert netlink_lookup() to use RCU protected hash table"
causes network latencies for me on s390.
The testcase is quite simple and 100% reproducible on s390:
Simply login via ssh to a remote system which has the above mentioned
patch applied. Any action like pressing return now has significant
latencies. Or in other words, working via such a connection becomes
a pain ;)
I haven't debugged it, however I assume the problem is that a) the
commit introduces a synchronize_net() call und b) s390 kernels
usually get compiled with CONFIG_HZ_100 while most other architectures
use CONFIG_HZ_1000.
If I change the kernel config to CONFIG_HZ_1000 the problem goes away,
however I don't consider this a fix...
Another reason why this hasn't been observed on x86 may or may not be
that we haven't implemented CONFIG_HAVE_CONTEXT_TRACKING on s390 (yet).
But that's just guessing...
^ permalink raw reply
* [PATCH net-next RFC 3/3] virtio-net: conditionally enable tx interrupt
From: Jason Wang @ 2014-10-11 7:16 UTC (permalink / raw)
To: rusty, mst, virtualization, netdev, linux-kernel; +Cc: linux-api, kvm
In-Reply-To: <1413011806-3813-1-git-send-email-jasowang@redhat.com>
We free transmitted packets in ndo_start_xmit() in the past to get better
performance in the past. One side effect is that skb_orphan() needs to be
called in ndo_start_xmit() which makes sk_wmem_alloc not accurate in
fact. For TCP protocol, this means several optimization could not work well
such as TCP small queue and auto corking. This can lead extra low
throughput of small packets stream.
Thanks to the urgent descriptor support. This patch tries to solve this
issue by enable the tx interrupt selectively for stream packets. This means
we don't need to orphan TCP stream packets in ndo_start_xmit() but enable
tx interrupt for those packets. After we get tx interrupt, a tx napi was
scheduled to free those packets.
With this method, sk_wmem_alloc of TCP socket were more accurate than in
the past which let TCP can batch more through TSQ and auto corking.
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/net/virtio_net.c | 164 ++++++++++++++++++++++++++++++++++++-----------
1 file changed, 128 insertions(+), 36 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5810841..b450fc4 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -72,6 +72,8 @@ struct send_queue {
/* Name of the send queue: output.$index */
char name[40];
+
+ struct napi_struct napi;
};
/* Internal representation of a receive virtqueue */
@@ -217,15 +219,40 @@ static struct page *get_a_page(struct receive_queue *rq, gfp_t gfp_mask)
return p;
}
+static int free_old_xmit_skbs(struct send_queue *sq, int budget)
+{
+ struct sk_buff *skb;
+ unsigned int len;
+ struct virtnet_info *vi = sq->vq->vdev->priv;
+ struct virtnet_stats *stats = this_cpu_ptr(vi->stats);
+ int sent = 0;
+
+ while (sent < budget &&
+ (skb = virtqueue_get_buf(sq->vq, &len)) != NULL) {
+ pr_debug("Sent skb %p\n", skb);
+
+ u64_stats_update_begin(&stats->tx_syncp);
+ stats->tx_bytes += skb->len;
+ stats->tx_packets++;
+ u64_stats_update_end(&stats->tx_syncp);
+
+ dev_kfree_skb_any(skb);
+ sent++;
+ }
+
+ return sent;
+}
+
static void skb_xmit_done(struct virtqueue *vq)
{
struct virtnet_info *vi = vq->vdev->priv;
+ struct send_queue *sq = &vi->sq[vq2txq(vq)];
- /* Suppress further interrupts. */
- virtqueue_disable_cb(vq);
-
- /* We were probably waiting for more output buffers. */
- netif_wake_subqueue(vi->dev, vq2txq(vq));
+ if (napi_schedule_prep(&sq->napi)) {
+ virtqueue_disable_cb(vq);
+ virtqueue_disable_cb_urgent(vq);
+ __napi_schedule(&sq->napi);
+ }
}
static unsigned int mergeable_ctx_to_buf_truesize(unsigned long mrg_ctx)
@@ -772,7 +799,38 @@ again:
return received;
}
+static int virtnet_poll_tx(struct napi_struct *napi, int budget)
+{
+ struct send_queue *sq =
+ container_of(napi, struct send_queue, napi);
+ struct virtnet_info *vi = sq->vq->vdev->priv;
+ struct netdev_queue *txq = netdev_get_tx_queue(vi->dev, vq2txq(sq->vq));
+ unsigned int r, sent = 0;
+
+again:
+ __netif_tx_lock(txq, smp_processor_id());
+ sent += free_old_xmit_skbs(sq, budget - sent);
+
+ if (sent < budget) {
+ r = virtqueue_enable_cb_prepare_urgent(sq->vq);
+ napi_complete(napi);
+ __netif_tx_unlock(txq);
+ if (unlikely(virtqueue_poll(sq->vq, r)) &&
+ napi_schedule_prep(napi)) {
+ virtqueue_disable_cb_urgent(sq->vq);
+ __napi_schedule(napi);
+ goto again;
+ }
+ } else {
+ __netif_tx_unlock(txq);
+ }
+
+ netif_wake_subqueue(vi->dev, vq2txq(sq->vq));
+ return sent;
+}
+
#ifdef CONFIG_NET_RX_BUSY_POLL
+
/* must be called with local_bh_disable()d */
static int virtnet_busy_poll(struct napi_struct *napi)
{
@@ -820,31 +878,13 @@ static int virtnet_open(struct net_device *dev)
if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
schedule_delayed_work(&vi->refill, 0);
virtnet_napi_enable(&vi->rq[i]);
+ napi_enable(&vi->sq[i].napi);
}
return 0;
}
-static void free_old_xmit_skbs(struct send_queue *sq)
-{
- struct sk_buff *skb;
- unsigned int len;
- struct virtnet_info *vi = sq->vq->vdev->priv;
- struct virtnet_stats *stats = this_cpu_ptr(vi->stats);
-
- while ((skb = virtqueue_get_buf(sq->vq, &len)) != NULL) {
- pr_debug("Sent skb %p\n", skb);
-
- u64_stats_update_begin(&stats->tx_syncp);
- stats->tx_bytes += skb->len;
- stats->tx_packets++;
- u64_stats_update_end(&stats->tx_syncp);
-
- dev_kfree_skb_any(skb);
- }
-}
-
-static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
+static int xmit_skb(struct send_queue *sq, struct sk_buff *skb, bool urgent)
{
struct skb_vnet_hdr *hdr;
const unsigned char *dest = ((struct ethhdr *)skb->data)->h_dest;
@@ -908,7 +948,43 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
sg_set_buf(sq->sg, hdr, hdr_len);
num_sg = skb_to_sgvec(skb, sq->sg + 1, 0, skb->len) + 1;
}
- return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
+ if (urgent)
+ return virtqueue_add_outbuf_urgent(sq->vq, sq->sg, num_sg,
+ skb, GFP_ATOMIC);
+ else
+ return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb,
+ GFP_ATOMIC);
+}
+
+static bool virtnet_skb_needs_intr(struct sk_buff *skb)
+{
+ union {
+ unsigned char *network;
+ struct iphdr *ipv4;
+ struct ipv6hdr *ipv6;
+ } hdr;
+ struct tcphdr *th = tcp_hdr(skb);
+ u16 payload_len;
+
+ hdr.network = skb_network_header(skb);
+
+ /* Only IPv4/IPv6 with TCP is supported */
+ if ((skb->protocol == htons(ETH_P_IP)) &&
+ hdr.ipv4->protocol == IPPROTO_TCP) {
+ payload_len = ntohs(hdr.ipv4->tot_len) - hdr.ipv4->ihl * 4 -
+ th->doff * 4;
+ } else if ((skb->protocol == htons(ETH_P_IPV6) ||
+ hdr.ipv6->nexthdr == IPPROTO_TCP)) {
+ payload_len = ntohs(hdr.ipv6->payload_len) - th->doff * 4;
+ } else {
+ return false;
+ }
+
+ /* We don't want to dealy packet with PUSH bit and pure ACK packet */
+ if (!th->psh && payload_len)
+ return true;
+
+ return false;
}
static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
@@ -916,13 +992,15 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
struct virtnet_info *vi = netdev_priv(dev);
int qnum = skb_get_queue_mapping(skb);
struct send_queue *sq = &vi->sq[qnum];
- int err;
+ bool urgent = virtnet_skb_needs_intr(skb);
+ int err, qsize = virtqueue_get_vring_size(sq->vq);
+ virtqueue_disable_cb_urgent(sq->vq);
/* Free up any pending old buffers before queueing new ones. */
- free_old_xmit_skbs(sq);
+ free_old_xmit_skbs(sq, qsize);
/* Try to transmit */
- err = xmit_skb(sq, skb);
+ err = xmit_skb(sq, skb, urgent);
/* This should not happen! */
if (unlikely(err)) {
@@ -935,22 +1013,26 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_OK;
}
- /* Don't wait up for transmitted skbs to be freed. */
- skb_orphan(skb);
- nf_reset(skb);
+ if (!urgent) {
+ skb_orphan(skb);
+ nf_reset(skb);
+ }
/* Apparently nice girls don't return TX_BUSY; stop the queue
* before it gets out of hand. Naturally, this wastes entries. */
if (sq->vq->num_free < 2+MAX_SKB_FRAGS) {
netif_stop_subqueue(dev, qnum);
+ virtqueue_disable_cb_urgent(sq->vq);
if (unlikely(!virtqueue_enable_cb_delayed(sq->vq))) {
/* More just got used, free them then recheck. */
- free_old_xmit_skbs(sq);
+ free_old_xmit_skbs(sq, qsize);
if (sq->vq->num_free >= 2+MAX_SKB_FRAGS) {
netif_start_subqueue(dev, qnum);
virtqueue_disable_cb(sq->vq);
}
}
+ } else if (virtqueue_enable_cb_urgent(sq->vq)) {
+ free_old_xmit_skbs(sq, qsize);
}
if (__netif_subqueue_stopped(dev, qnum) || !skb->xmit_more)
@@ -1132,8 +1214,10 @@ static int virtnet_close(struct net_device *dev)
/* Make sure refill_work doesn't re-enable napi! */
cancel_delayed_work_sync(&vi->refill);
- for (i = 0; i < vi->max_queue_pairs; i++)
+ for (i = 0; i < vi->max_queue_pairs; i++) {
napi_disable(&vi->rq[i].napi);
+ napi_disable(&vi->sq[i].napi);
+ }
return 0;
}
@@ -1452,8 +1536,10 @@ static void virtnet_free_queues(struct virtnet_info *vi)
{
int i;
- for (i = 0; i < vi->max_queue_pairs; i++)
+ for (i = 0; i < vi->max_queue_pairs; i++) {
netif_napi_del(&vi->rq[i].napi);
+ netif_napi_del(&vi->sq[i].napi);
+ }
kfree(vi->rq);
kfree(vi->sq);
@@ -1607,6 +1693,8 @@ static int virtnet_alloc_queues(struct virtnet_info *vi)
netif_napi_add(vi->dev, &vi->rq[i].napi, virtnet_poll,
napi_weight);
napi_hash_add(&vi->rq[i].napi);
+ netif_napi_add(vi->dev, &vi->sq[i].napi, virtnet_poll_tx,
+ napi_weight);
sg_init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg));
ewma_init(&vi->rq[i].mrg_avg_pkt_len, 1, RECEIVE_AVG_WEIGHT);
@@ -1912,8 +2000,10 @@ static int virtnet_freeze(struct virtio_device *vdev)
if (netif_running(vi->dev)) {
for (i = 0; i < vi->max_queue_pairs; i++) {
napi_disable(&vi->rq[i].napi);
+ napi_disable(&vi->sq[i].napi);
napi_hash_del(&vi->rq[i].napi);
netif_napi_del(&vi->rq[i].napi);
+ netif_napi_del(&vi->sq[i].napi);
}
}
@@ -1938,8 +2028,10 @@ static int virtnet_restore(struct virtio_device *vdev)
if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
schedule_delayed_work(&vi->refill, 0);
- for (i = 0; i < vi->max_queue_pairs; i++)
+ for (i = 0; i < vi->max_queue_pairs; i++) {
virtnet_napi_enable(&vi->rq[i]);
+ napi_enable(&vi->sq[i].napi);
+ }
}
netif_device_attach(vi->dev);
--
1.8.3.1
^ permalink raw reply related
* [PATCH net-next RFC 2/3] vhost: support urgent descriptors
From: Jason Wang @ 2014-10-11 7:16 UTC (permalink / raw)
To: rusty, mst, virtualization, netdev, linux-kernel; +Cc: linux-api, kvm
In-Reply-To: <1413011806-3813-1-git-send-email-jasowang@redhat.com>
This patches let vhost-net support urgent descriptors. For zerocopy case,
two new types of length was introduced to make it work.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/net.c | 43 +++++++++++++++++++++++++++++++------------
drivers/vhost/scsi.c | 23 +++++++++++++++--------
drivers/vhost/test.c | 5 +++--
drivers/vhost/vhost.c | 44 +++++++++++++++++++++++++++++---------------
drivers/vhost/vhost.h | 19 +++++++++++++------
5 files changed, 91 insertions(+), 43 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 8dae2f7..37b0bb5 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -48,9 +48,13 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
* status internally; used for zerocopy tx only.
*/
/* Lower device DMA failed */
-#define VHOST_DMA_FAILED_LEN 3
+#define VHOST_DMA_FAILED_LEN 5
+/* Lower device DMA doen, urgent bit set */
+#define VHOST_DMA_DONE_LEN_URGENT 4
/* Lower device DMA done */
-#define VHOST_DMA_DONE_LEN 2
+#define VHOST_DMA_DONE_LEN 3
+/* Lower device DMA in progress, urgent bit set */
+#define VHOST_DMA_URGENT 2
/* Lower device DMA in progress */
#define VHOST_DMA_IN_PROGRESS 1
/* Buffer unused */
@@ -284,11 +288,13 @@ static void vhost_zerocopy_signal_used(struct vhost_net *net,
container_of(vq, struct vhost_net_virtqueue, vq);
int i, add;
int j = 0;
+ bool urgent = false;
for (i = nvq->done_idx; i != nvq->upend_idx; i = (i + 1) % UIO_MAXIOV) {
if (vq->heads[i].len == VHOST_DMA_FAILED_LEN)
vhost_net_tx_err(net);
if (VHOST_DMA_IS_DONE(vq->heads[i].len)) {
+ urgent = urgent || vq->heads[i].len == VHOST_DMA_DONE_LEN_URGENT;
vq->heads[i].len = VHOST_DMA_CLEAR_LEN;
++j;
} else
@@ -296,7 +302,7 @@ static void vhost_zerocopy_signal_used(struct vhost_net *net,
}
while (j) {
add = min(UIO_MAXIOV - nvq->done_idx, j);
- vhost_add_used_and_signal_n(vq->dev, vq,
+ vhost_add_used_and_signal_n(vq->dev, vq, urgent,
&vq->heads[nvq->done_idx], add);
nvq->done_idx = (nvq->done_idx + add) % UIO_MAXIOV;
j -= add;
@@ -311,9 +317,14 @@ static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
rcu_read_lock_bh();
- /* set len to mark this desc buffers done DMA */
- vq->heads[ubuf->desc].len = success ?
- VHOST_DMA_DONE_LEN : VHOST_DMA_FAILED_LEN;
+ if (success) {
+ if (vq->heads[ubuf->desc].len == VHOST_DMA_IN_PROGRESS)
+ vq->heads[ubuf->desc].len = VHOST_DMA_DONE_LEN;
+ else
+ vq->heads[ubuf->desc].len = VHOST_DMA_DONE_LEN_URGENT;
+ } else {
+ vq->heads[ubuf->desc].len = VHOST_DMA_FAILED_LEN;
+ }
cnt = vhost_net_ubuf_put(ubufs);
/*
@@ -363,6 +374,7 @@ static void handle_tx(struct vhost_net *net)
zcopy = nvq->ubufs;
for (;;) {
+ bool urgent;
/* Release DMAs done buffers first */
if (zcopy)
vhost_zerocopy_signal_used(net, vq);
@@ -374,7 +386,7 @@ static void handle_tx(struct vhost_net *net)
% UIO_MAXIOV == nvq->done_idx))
break;
- head = vhost_get_vq_desc(vq, vq->iov,
+ head = vhost_get_vq_desc(vq, &urgent, vq->iov,
ARRAY_SIZE(vq->iov),
&out, &in,
NULL, NULL);
@@ -417,7 +429,8 @@ static void handle_tx(struct vhost_net *net)
ubuf = nvq->ubuf_info + nvq->upend_idx;
vq->heads[nvq->upend_idx].id = head;
- vq->heads[nvq->upend_idx].len = VHOST_DMA_IN_PROGRESS;
+ vq->heads[nvq->upend_idx].len = urgent ?
+ VHOST_DMA_URGENT : VHOST_DMA_IN_PROGRESS;
ubuf->callback = vhost_zerocopy_callback;
ubuf->ctx = nvq->ubufs;
ubuf->desc = nvq->upend_idx;
@@ -445,7 +458,7 @@ static void handle_tx(struct vhost_net *net)
pr_debug("Truncated TX packet: "
" len %d != %zd\n", err, len);
if (!zcopy_used)
- vhost_add_used_and_signal(&net->dev, vq, head, 0);
+ vhost_add_used_and_signal(&net->dev, vq, urgent, head, 0);
else
vhost_zerocopy_signal_used(net, vq);
total_len += len;
@@ -488,6 +501,7 @@ static int peek_head_len(struct sock *sk)
* returns number of buffer heads allocated, negative on error
*/
static int get_rx_bufs(struct vhost_virtqueue *vq,
+ bool *urgentp,
struct vring_used_elem *heads,
int datalen,
unsigned *iovcount,
@@ -502,11 +516,13 @@ static int get_rx_bufs(struct vhost_virtqueue *vq,
int r, nlogs = 0;
while (datalen > 0 && headcount < quota) {
+ bool urgent = false;
+
if (unlikely(seg >= UIO_MAXIOV)) {
r = -ENOBUFS;
goto err;
}
- r = vhost_get_vq_desc(vq, vq->iov + seg,
+ r = vhost_get_vq_desc(vq, &urgent, vq->iov + seg,
ARRAY_SIZE(vq->iov) - seg, &out,
&in, log, log_num);
if (unlikely(r < 0))
@@ -527,6 +543,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq,
nlogs += *log_num;
log += *log_num;
}
+ *urgentp = *urgentp || urgent;
heads[headcount].id = d;
heads[headcount].len = iov_length(vq->iov + seg, in);
datalen -= heads[headcount].len;
@@ -590,9 +607,11 @@ static void handle_rx(struct vhost_net *net)
mergeable = vhost_has_feature(vq, VIRTIO_NET_F_MRG_RXBUF);
while ((sock_len = peek_head_len(sock->sk))) {
+ bool urgent = false;
+
sock_len += sock_hlen;
vhost_len = sock_len + vhost_hlen;
- headcount = get_rx_bufs(vq, vq->heads, vhost_len,
+ headcount = get_rx_bufs(vq, &urgent, vq->heads, vhost_len,
&in, vq_log, &log,
likely(mergeable) ? UIO_MAXIOV : 1);
/* On error, stop handling until the next kick. */
@@ -654,7 +673,7 @@ static void handle_rx(struct vhost_net *net)
vhost_discard_vq_desc(vq, headcount);
break;
}
- vhost_add_used_and_signal_n(&net->dev, vq, vq->heads,
+ vhost_add_used_and_signal_n(&net->dev, vq, urgent, vq->heads,
headcount);
if (unlikely(vq_log))
vhost_log_write(vq, vq_log, log, vhost_len);
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 69906ca..0a7e5bc 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -72,6 +72,8 @@ struct tcm_vhost_cmd {
int tvc_vq_desc;
/* virtio-scsi initiator task attribute */
int tvc_task_attr;
+ /* Descriptor urgent? */
+ bool tvc_vq_desc_urgent;
/* virtio-scsi initiator data direction */
enum dma_data_direction tvc_data_direction;
/* Expected data transfer length from virtio-scsi header */
@@ -606,6 +608,7 @@ tcm_vhost_do_evt_work(struct vhost_scsi *vs, struct tcm_vhost_evt *evt)
struct virtio_scsi_event __user *eventp;
unsigned out, in;
int head, ret;
+ bool urgent;
if (!vq->private_data) {
vs->vs_events_missed = true;
@@ -614,7 +617,7 @@ tcm_vhost_do_evt_work(struct vhost_scsi *vs, struct tcm_vhost_evt *evt)
again:
vhost_disable_notify(&vs->dev, vq);
- head = vhost_get_vq_desc(vq, vq->iov,
+ head = vhost_get_vq_desc(vq, &urgent, vq->iov,
ARRAY_SIZE(vq->iov), &out, &in,
NULL, NULL);
if (head < 0) {
@@ -643,7 +646,7 @@ again:
eventp = vq->iov[out].iov_base;
ret = __copy_to_user(eventp, event, sizeof(*event));
if (!ret)
- vhost_add_used_and_signal(&vs->dev, vq, head, 0);
+ vhost_add_used_and_signal(&vs->dev, vq, urgent, head, 0);
else
vq_err(vq, "Faulted on tcm_vhost_send_event\n");
}
@@ -704,7 +707,8 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
ret = copy_to_user(cmd->tvc_resp, &v_rsp, sizeof(v_rsp));
if (likely(ret == 0)) {
struct vhost_scsi_virtqueue *q;
- vhost_add_used(cmd->tvc_vq, cmd->tvc_vq_desc, 0);
+ vhost_add_used(cmd->tvc_vq, cmd->tvc_vq_desc_urgent,
+ cmd->tvc_vq_desc, 0);
q = container_of(cmd->tvc_vq, struct vhost_scsi_virtqueue, vq);
vq = q - vs->vqs;
__set_bit(vq, signal);
@@ -947,6 +951,7 @@ static void tcm_vhost_submission_work(struct work_struct *work)
static void
vhost_scsi_send_bad_target(struct vhost_scsi *vs,
struct vhost_virtqueue *vq,
+ bool urgent,
int head, unsigned out)
{
struct virtio_scsi_cmd_resp __user *resp;
@@ -958,7 +963,7 @@ vhost_scsi_send_bad_target(struct vhost_scsi *vs,
resp = vq->iov[out].iov_base;
ret = __copy_to_user(resp, &rsp, sizeof(rsp));
if (!ret)
- vhost_add_used_and_signal(&vs->dev, vq, head, 0);
+ vhost_add_used_and_signal(&vs->dev, vq, urgent, head, 0);
else
pr_err("Faulted on virtio_scsi_cmd_resp\n");
}
@@ -980,6 +985,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
u8 *target, *lunp, task_attr;
bool hdr_pi;
void *req, *cdb;
+ bool urgent;
mutex_lock(&vq->mutex);
/*
@@ -993,7 +999,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
vhost_disable_notify(&vs->dev, vq);
for (;;) {
- head = vhost_get_vq_desc(vq, vq->iov,
+ head = vhost_get_vq_desc(vq, &urgent, vq->iov,
ARRAY_SIZE(vq->iov), &out, &in,
NULL, NULL);
pr_debug("vhost_get_vq_desc: head: %d, out: %u in: %u\n",
@@ -1067,7 +1073,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
/* virtio-scsi spec requires byte 0 of the lun to be 1 */
if (unlikely(*lunp != 1)) {
- vhost_scsi_send_bad_target(vs, vq, head, out);
+ vhost_scsi_send_bad_target(vs, vq, urgent, head, out);
continue;
}
@@ -1075,7 +1081,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
/* Target does not exist, fail the request */
if (unlikely(!tpg)) {
- vhost_scsi_send_bad_target(vs, vq, head, out);
+ vhost_scsi_send_bad_target(vs, vq, urgent, head, out);
continue;
}
@@ -1187,6 +1193,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
* tcm_vhost_queue_data_in() and tcm_vhost_queue_status()
*/
cmd->tvc_vq_desc = head;
+ cmd->tvc_vq_desc_urgent = urgent;
/*
* Dispatch tv_cmd descriptor for cmwq execution in process
* context provided by tcm_vhost_workqueue. This also ensures
@@ -1203,7 +1210,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
err_free:
vhost_scsi_free_cmd(cmd);
err_cmd:
- vhost_scsi_send_bad_target(vs, vq, head, out);
+ vhost_scsi_send_bad_target(vs, vq, urgent, head, out);
out:
mutex_unlock(&vq->mutex);
}
diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
index d9c501e..757f3a2 100644
--- a/drivers/vhost/test.c
+++ b/drivers/vhost/test.c
@@ -42,6 +42,7 @@ static void handle_vq(struct vhost_test *n)
int head;
size_t len, total_len = 0;
void *private;
+ bool urgent;
mutex_lock(&vq->mutex);
private = vq->private_data;
@@ -53,7 +54,7 @@ static void handle_vq(struct vhost_test *n)
vhost_disable_notify(&n->dev, vq);
for (;;) {
- head = vhost_get_vq_desc(vq, vq->iov,
+ head = vhost_get_vq_desc(vq, &urgent, vq->iov,
ARRAY_SIZE(vq->iov),
&out, &in,
NULL, NULL);
@@ -79,7 +80,7 @@ static void handle_vq(struct vhost_test *n)
vq_err(vq, "Unexpected 0 len for TX\n");
break;
}
- vhost_add_used_and_signal(&n->dev, vq, head, 0);
+ vhost_add_used_and_signal(&n->dev, vq, urgent, head, 0);
total_len += len;
if (unlikely(total_len >= VHOST_TEST_WEIGHT)) {
vhost_poll_queue(&vq->poll);
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index c90f437..8a35e14 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -186,6 +186,7 @@ static void vhost_vq_reset(struct vhost_dev *dev,
vq->last_used_idx = 0;
vq->signalled_used = 0;
vq->signalled_used_valid = false;
+ vq->urgent = false;
vq->used_flags = 0;
vq->log_used = false;
vq->log_addr = -1ull;
@@ -1201,7 +1202,7 @@ static int get_indirect(struct vhost_virtqueue *vq,
* This function returns the descriptor number found, or vq->num (which is
* never a valid descriptor number) if none was found. A negative code is
* returned on error. */
-int vhost_get_vq_desc(struct vhost_virtqueue *vq,
+int vhost_get_vq_desc(struct vhost_virtqueue *vq, bool *urgent,
struct iovec iov[], unsigned int iov_size,
unsigned int *out_num, unsigned int *in_num,
struct vhost_log *log, unsigned int *log_num)
@@ -1211,6 +1212,8 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
u16 last_avail_idx;
int ret;
+ *urgent = false;
+
/* Check it isn't doing very strange things with descriptor numbers. */
last_avail_idx = vq->last_avail_idx;
if (unlikely(__get_user(vq->avail_idx, &vq->avail->idx))) {
@@ -1274,6 +1277,8 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
i, vq->desc + i);
return -EFAULT;
}
+ if (desc.flags & VRING_DESC_F_URGENT)
+ *urgent = true;
if (desc.flags & VRING_DESC_F_INDIRECT) {
ret = get_indirect(vq, iov, iov_size,
out_num, in_num,
@@ -1333,11 +1338,11 @@ EXPORT_SYMBOL_GPL(vhost_discard_vq_desc);
/* After we've used one of their buffers, we tell them about it. We'll then
* want to notify the guest, using eventfd. */
-int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
+int vhost_add_used(struct vhost_virtqueue *vq, bool urgent, unsigned int head, int len)
{
struct vring_used_elem heads = { head, len };
- return vhost_add_used_n(vq, &heads, 1);
+ return vhost_add_used_n(vq, urgent, &heads, 1);
}
EXPORT_SYMBOL_GPL(vhost_add_used);
@@ -1386,7 +1391,8 @@ static int __vhost_add_used_n(struct vhost_virtqueue *vq,
/* After we've used one of their buffers, we tell them about it. We'll then
* want to notify the guest, using eventfd. */
-int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads,
+int vhost_add_used_n(struct vhost_virtqueue *vq, bool urgent,
+ struct vring_used_elem *heads,
unsigned count)
{
int start, n, r;
@@ -1416,13 +1422,14 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads,
if (vq->log_ctx)
eventfd_signal(vq->log_ctx, 1);
}
+ vq->urgent = vq->urgent || urgent;
return r;
}
EXPORT_SYMBOL_GPL(vhost_add_used_n);
static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
{
- __u16 old, new, event;
+ __u16 old, new, event, flags;
bool v;
/* Flush out used index updates. This is paired
* with the barrier that the Guest executes when enabling
@@ -1433,14 +1440,17 @@ static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
unlikely(vq->avail_idx == vq->last_avail_idx))
return true;
- if (!vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX)) {
- __u16 flags;
- if (__get_user(flags, &vq->avail->flags)) {
- vq_err(vq, "Failed to get flags");
- return true;
- }
- return !(flags & VRING_AVAIL_F_NO_INTERRUPT);
+ if (__get_user(flags, &vq->avail->flags)) {
+ vq_err(vq, "Failed to get flags");
+ return true;
}
+
+ if (!vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX))
+ return !(flags & VRING_AVAIL_F_NO_INTERRUPT);
+
+ if (vq->urgent && !(flags & VRING_AVAIL_F_NO_URGENT_INTERRUPT))
+ return true;
+
old = vq->signalled_used;
v = vq->signalled_used_valid;
new = vq->signalled_used = vq->last_used_idx;
@@ -1460,17 +1470,20 @@ static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
void vhost_signal(struct vhost_dev *dev, struct vhost_virtqueue *vq)
{
/* Signal the Guest tell them we used something up. */
- if (vq->call_ctx && vhost_notify(dev, vq))
+ if (vq->call_ctx && vhost_notify(dev, vq)) {
eventfd_signal(vq->call_ctx, 1);
+ vq->urgent = false;
+ }
}
EXPORT_SYMBOL_GPL(vhost_signal);
/* And here's the combo meal deal. Supersize me! */
void vhost_add_used_and_signal(struct vhost_dev *dev,
struct vhost_virtqueue *vq,
+ bool urgent,
unsigned int head, int len)
{
- vhost_add_used(vq, head, len);
+ vhost_add_used(vq, urgent, head, len);
vhost_signal(dev, vq);
}
EXPORT_SYMBOL_GPL(vhost_add_used_and_signal);
@@ -1478,9 +1491,10 @@ EXPORT_SYMBOL_GPL(vhost_add_used_and_signal);
/* multi-buffer version of vhost_add_used_and_signal */
void vhost_add_used_and_signal_n(struct vhost_dev *dev,
struct vhost_virtqueue *vq,
+ bool urgent,
struct vring_used_elem *heads, unsigned count)
{
- vhost_add_used_n(vq, heads, count);
+ vhost_add_used_n(vq, urgent, heads, count);
vhost_signal(dev, vq);
}
EXPORT_SYMBOL_GPL(vhost_add_used_and_signal_n);
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 3eda654..61ca542 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -96,6 +96,9 @@ struct vhost_virtqueue {
/* Last used index value we have signalled on */
bool signalled_used_valid;
+ /* Urgent descriptor was used */
+ bool urgent;
+
/* Log writes to used structure. */
bool log_used;
u64 log_addr;
@@ -138,20 +141,24 @@ long vhost_vring_ioctl(struct vhost_dev *d, int ioctl, void __user *argp);
int vhost_vq_access_ok(struct vhost_virtqueue *vq);
int vhost_log_access_ok(struct vhost_dev *);
-int vhost_get_vq_desc(struct vhost_virtqueue *,
+int vhost_get_vq_desc(struct vhost_virtqueue *, bool *urgent,
struct iovec iov[], unsigned int iov_count,
unsigned int *out_num, unsigned int *in_num,
struct vhost_log *log, unsigned int *log_num);
void vhost_discard_vq_desc(struct vhost_virtqueue *, int n);
int vhost_init_used(struct vhost_virtqueue *);
-int vhost_add_used(struct vhost_virtqueue *, unsigned int head, int len);
-int vhost_add_used_n(struct vhost_virtqueue *, struct vring_used_elem *heads,
- unsigned count);
-void vhost_add_used_and_signal(struct vhost_dev *, struct vhost_virtqueue *,
+int vhost_add_used(struct vhost_virtqueue *, bool urgent,
+ unsigned int head, int len);
+int vhost_add_used_n(struct vhost_virtqueue *, bool urgent,
+ struct vring_used_elem *heads, unsigned count);
+void vhost_add_used_and_signal(struct vhost_dev *,
+ struct vhost_virtqueue *,
+ bool urgent,
unsigned int id, int len);
void vhost_add_used_and_signal_n(struct vhost_dev *, struct vhost_virtqueue *,
- struct vring_used_elem *heads, unsigned count);
+ bool urgent,
+ struct vring_used_elem *heads, unsigned count);
void vhost_signal(struct vhost_dev *, struct vhost_virtqueue *);
void vhost_disable_notify(struct vhost_dev *, struct vhost_virtqueue *);
bool vhost_enable_notify(struct vhost_dev *, struct vhost_virtqueue *);
--
1.8.3.1
^ permalink raw reply related
* [PATCH net-next RFC 1/3] virtio: support for urgent descriptors
From: Jason Wang @ 2014-10-11 7:16 UTC (permalink / raw)
To: rusty, mst, virtualization, netdev, linux-kernel; +Cc: linux-api, kvm
In-Reply-To: <1413011806-3813-1-git-send-email-jasowang@redhat.com>
Below should be useful for some experiments Jason is doing.
I thought I'd send it out for early review/feedback.
event idx feature allows us to defer interrupts until
a specific # of descriptors were used.
Sometimes it might be useful to get an interrupt after
a specific descriptor, regardless.
This adds a descriptor flag for this, and an API
to create an urgent output descriptor.
This is still an RFC:
we'll need a feature bit for drivers to detect this,
but we've run out of feature bits for virtio 0.X.
For experimentation purposes, drivers can assume
this is set, or add a driver-specific feature bit.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/virtio/virtio_ring.c | 75 +++++++++++++++++++++++++++++++++++++---
include/linux/virtio.h | 14 ++++++++
include/uapi/linux/virtio_ring.h | 5 ++-
3 files changed, 89 insertions(+), 5 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 4d08f45a..a5188c6 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -115,6 +115,7 @@ static inline struct scatterlist *sg_next_arr(struct scatterlist *sg,
/* Set up an indirect table of descriptors and add it to the queue. */
static inline int vring_add_indirect(struct vring_virtqueue *vq,
+ bool urgent,
struct scatterlist *sgs[],
struct scatterlist *(*next)
(struct scatterlist *, unsigned int *),
@@ -173,6 +174,8 @@ static inline int vring_add_indirect(struct vring_virtqueue *vq,
/* Use a single buffer which doesn't continue */
head = vq->free_head;
vq->vring.desc[head].flags = VRING_DESC_F_INDIRECT;
+ if (urgent)
+ vq->vring.desc[head].flags |= VRING_DESC_F_URGENT;
vq->vring.desc[head].addr = virt_to_phys(desc);
/* kmemleak gives a false positive, as it's hidden by virt_to_phys */
kmemleak_ignore(desc);
@@ -185,6 +188,7 @@ static inline int vring_add_indirect(struct vring_virtqueue *vq,
}
static inline int virtqueue_add(struct virtqueue *_vq,
+ bool urgent,
struct scatterlist *sgs[],
struct scatterlist *(*next)
(struct scatterlist *, unsigned int *),
@@ -227,7 +231,7 @@ static inline int virtqueue_add(struct virtqueue *_vq,
/* If the host supports indirect descriptor tables, and we have multiple
* buffers, then go indirect. FIXME: tune this threshold */
if (vq->indirect && total_sg > 1 && vq->vq.num_free) {
- head = vring_add_indirect(vq, sgs, next, total_sg, total_out,
+ head = vring_add_indirect(vq, urgent, sgs, next, total_sg, total_out,
total_in,
out_sgs, in_sgs, gfp);
if (likely(head >= 0))
@@ -256,6 +260,10 @@ static inline int virtqueue_add(struct virtqueue *_vq,
for (n = 0; n < out_sgs; n++) {
for (sg = sgs[n]; sg; sg = next(sg, &total_out)) {
vq->vring.desc[i].flags = VRING_DESC_F_NEXT;
+ if (urgent) {
+ vq->vring.desc[head].flags |= VRING_DESC_F_URGENT;
+ urgent = false;
+ }
vq->vring.desc[i].addr = sg_phys(sg);
vq->vring.desc[i].len = sg->length;
prev = i;
@@ -265,6 +273,10 @@ static inline int virtqueue_add(struct virtqueue *_vq,
for (; n < (out_sgs + in_sgs); n++) {
for (sg = sgs[n]; sg; sg = next(sg, &total_in)) {
vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE;
+ if (urgent) {
+ vq->vring.desc[head].flags |= VRING_DESC_F_URGENT;
+ urgent = false;
+ }
vq->vring.desc[i].addr = sg_phys(sg);
vq->vring.desc[i].len = sg->length;
prev = i;
@@ -305,6 +317,8 @@ add_head:
/**
* virtqueue_add_sgs - expose buffers to other end
+ * @urgent: in case virtqueue_enable_cb_delayed was called, cause an interrupt
+ * after this descriptor was completed
* @vq: the struct virtqueue we're talking about.
* @sgs: array of terminated scatterlists.
* @out_num: the number of scatterlists readable by other side
@@ -337,7 +351,7 @@ int virtqueue_add_sgs(struct virtqueue *_vq,
for (sg = sgs[i]; sg; sg = sg_next(sg))
total_in++;
}
- return virtqueue_add(_vq, sgs, sg_next_chained,
+ return virtqueue_add(_vq, false, sgs, sg_next_chained,
total_out, total_in, out_sgs, in_sgs, data, gfp);
}
EXPORT_SYMBOL_GPL(virtqueue_add_sgs);
@@ -360,11 +374,35 @@ int virtqueue_add_outbuf(struct virtqueue *vq,
void *data,
gfp_t gfp)
{
- return virtqueue_add(vq, &sg, sg_next_arr, num, 0, 1, 0, data, gfp);
+ return virtqueue_add(vq, false, &sg, sg_next_arr, num, 0, 1, 0, data, gfp);
}
EXPORT_SYMBOL_GPL(virtqueue_add_outbuf);
/**
+ * virtqueue_add_outbuf - expose output buffers to other end
+ * in case virtqueue_enable_cb_delayed was called, cause an interrupt
+ * after this descriptor was completed
+ * @vq: the struct virtqueue we're talking about.
+ * @sgs: array of scatterlists (need not be terminated!)
+ * @num: the number of scatterlists readable by other side
+ * @data: the token identifying the buffer.
+ * @gfp: how to do memory allocations (if necessary).
+ *
+ * Caller must ensure we don't call this with other virtqueue operations
+ * at the same time (except where noted).
+ *
+ * Returns zero or a negative error (ie. ENOSPC, ENOMEM, EIO).
+ */
+int virtqueue_add_outbuf_urgent(struct virtqueue *vq,
+ struct scatterlist sg[], unsigned int num,
+ void *data,
+ gfp_t gfp)
+{
+ return virtqueue_add(vq, true, &sg, sg_next_arr, num, 0, 1, 0, data, gfp);
+}
+EXPORT_SYMBOL_GPL(virtqueue_add_outbuf_urgent);
+
+/**
* virtqueue_add_inbuf - expose input buffers to other end
* @vq: the struct virtqueue we're talking about.
* @sgs: array of scatterlists (need not be terminated!)
@@ -382,7 +420,7 @@ int virtqueue_add_inbuf(struct virtqueue *vq,
void *data,
gfp_t gfp)
{
- return virtqueue_add(vq, &sg, sg_next_arr, 0, num, 0, 1, data, gfp);
+ return virtqueue_add(vq, false, &sg, sg_next_arr, 0, num, 0, 1, data, gfp);
}
EXPORT_SYMBOL_GPL(virtqueue_add_inbuf);
@@ -595,6 +633,14 @@ void virtqueue_disable_cb(struct virtqueue *_vq)
}
EXPORT_SYMBOL_GPL(virtqueue_disable_cb);
+void virtqueue_disable_cb_urgent(struct virtqueue *_vq)
+{
+ struct vring_virtqueue *vq = to_vvq(_vq);
+
+ vq->vring.avail->flags |= VRING_AVAIL_F_NO_URGENT_INTERRUPT;
+}
+EXPORT_SYMBOL_GPL(virtqueue_disable_cb_urgent);
+
/**
* virtqueue_enable_cb_prepare - restart callbacks after disable_cb
* @vq: the struct virtqueue we're talking about.
@@ -626,6 +672,19 @@ unsigned virtqueue_enable_cb_prepare(struct virtqueue *_vq)
}
EXPORT_SYMBOL_GPL(virtqueue_enable_cb_prepare);
+unsigned virtqueue_enable_cb_prepare_urgent(struct virtqueue *_vq)
+{
+ struct vring_virtqueue *vq = to_vvq(_vq);
+ u16 last_used_idx;
+
+ START_USE(vq);
+ vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_URGENT_INTERRUPT;
+ last_used_idx = vq->last_used_idx;
+ END_USE(vq);
+ return last_used_idx;
+}
+EXPORT_SYMBOL_GPL(virtqueue_enable_cb_prepare_urgent);
+
/**
* virtqueue_poll - query pending used buffers
* @vq: the struct virtqueue we're talking about.
@@ -662,6 +721,14 @@ bool virtqueue_enable_cb(struct virtqueue *_vq)
}
EXPORT_SYMBOL_GPL(virtqueue_enable_cb);
+bool virtqueue_enable_cb_urgent(struct virtqueue *_vq)
+{
+ unsigned last_used_idx = virtqueue_enable_cb_prepare_urgent(_vq);
+
+ return !virtqueue_poll(_vq, last_used_idx);
+}
+EXPORT_SYMBOL_GPL(virtqueue_enable_cb_urgent);
+
/**
* virtqueue_enable_cb_delayed - restart callbacks after disable_cb.
* @vq: the struct virtqueue we're talking about.
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index b46671e..68be5f2 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -39,6 +39,12 @@ int virtqueue_add_outbuf(struct virtqueue *vq,
void *data,
gfp_t gfp);
+int virtqueue_add_outbuf_urgent(struct virtqueue *vq,
+ struct scatterlist sg[], unsigned int num,
+ void *data,
+ gfp_t gfp);
+
+
int virtqueue_add_inbuf(struct virtqueue *vq,
struct scatterlist sg[], unsigned int num,
void *data,
@@ -61,10 +67,18 @@ void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len);
void virtqueue_disable_cb(struct virtqueue *vq);
+void virtqueue_disable_cb_urgent(struct virtqueue *vq);
+
bool virtqueue_enable_cb(struct virtqueue *vq);
+bool virtqueue_enable_cb_urgent(struct virtqueue *vq);
+
+bool virtqueue_enable_cb_urgent(struct virtqueue *vq);
+
unsigned virtqueue_enable_cb_prepare(struct virtqueue *vq);
+unsigned virtqueue_enable_cb_prepare_urgent(struct virtqueue *vq);
+
bool virtqueue_poll(struct virtqueue *vq, unsigned);
bool virtqueue_enable_cb_delayed(struct virtqueue *vq);
diff --git a/include/uapi/linux/virtio_ring.h b/include/uapi/linux/virtio_ring.h
index a99f9b7..daf5bb0 100644
--- a/include/uapi/linux/virtio_ring.h
+++ b/include/uapi/linux/virtio_ring.h
@@ -39,6 +39,9 @@
#define VRING_DESC_F_WRITE 2
/* This means the buffer contains a list of buffer descriptors. */
#define VRING_DESC_F_INDIRECT 4
+/* This means the descriptor should cause an interrupt
+ * ignoring avail event idx. */
+#define VRING_DESC_F_URGENT 8
/* The Host uses this in used->flags to advise the Guest: don't kick me when
* you add a buffer. It's unreliable, so it's simply an optimization. Guest
@@ -48,7 +51,7 @@
* when you consume a buffer. It's unreliable, so it's simply an
* optimization. */
#define VRING_AVAIL_F_NO_INTERRUPT 1
-
+#define VRING_AVAIL_F_NO_URGENT_INTERRUPT 2
/* We support indirect buffer descriptors */
#define VIRTIO_RING_F_INDIRECT_DESC 28
--
1.8.3.1
^ permalink raw reply related
* [PATCH net-next RFC 0/3] virtio-net: Conditionally enable tx interrupt
From: Jason Wang @ 2014-10-11 7:16 UTC (permalink / raw)
To: rusty-8n+1lVoiYb80n/F98K4Iww, mst-H+wXaHxf7aLQT0dZR+AlfA,
virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
netdev-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: linux-api-u79uwXL29TY76Z2rM5mHXA, kvm-u79uwXL29TY76Z2rM5mHXA,
Jason Wang
Hello all:
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there. This was used to reduce the overhead of
tx interrupt to achieve better performance. But this may not work for some
protocols such as TCP stream. TCP depends on the value of sk_wmem_alloc to
implement various optimization for small packets stream such as TCP small
queue and auto corking. But orphaning packets early in ndo_start_xmit()
disable such things more or less since sk_wmem_alloc was not accurate. This
lead extra low throughput for TCP stream of small writes.
This series tries to solve this issue by enable tx interrupts for all TCP
packets other than the ones with push bit or pure ACK. This is done through
the support of urgent descriptor which can force an interrupt for a
specified packet. If tx interrupt was enabled for a packet, there's no need
to orphan it in ndo_start_xmit(), we can free it tx napi which is scheduled
by tx interrupt. Then sk_wmem_alloc was more accurate than before and TCP
can batch more for small write. More larger skb was produced by TCP in this
case to improve both throughput and cpu utilization.
Test shows great improvements on small write tcp streams. For most of the
other cases, the throughput and cpu utilization are the same in the
past. Only few cases, more cpu utilization was noticed which needs more
investigation.
Review and comments are welcomed.
Thanks
Test result:
- Two Intel Corporation Xeon 5600s (8 cores) with back to back connected
82599ES:
- netperf test between guest and remote host
- 1 queue 2 vcpus with zercopy enabled vhost_net
- both host and guest are net-next.git with the patches.
- Value with '[]' means obvious difference (the significance is greater
than 95%).
- he significance of the differences between the two averages is calculated
using unpaired T-test that takes into account the SD of the averages.
Guest RX
size/sessions/throughput-+%/cpu-+%/per cpu throughput -+%/
64/1/+3.7872%/+3.2307%/+0.5390%/
64/2/-0.2325%/+2.9552%/-3.0962%/
64/4/[-2.0296%]/+2.2955%/[-4.2280%]/
64/8/+0.0944%/[+2.2654%]/-2.4662%/
256/1/+1.1947%/-2.5462%/+3.8386%/
256/2/-1.6477%/+3.4421%/-4.9301%/
256/4/[-5.9526%]/[+6.8861%]/[-11.9951%]/
256/8/-3.6470%/-1.5887%/-2.0916%/
1024/1/-4.2225%/-1.3238%/-2.9376%/
1024/2/+0.3568%/+1.8439%/-1.4601%/
1024/4/-0.7065%/-0.0099%/-2.3483%/
1024/8/-1.8620%/-2.4774%/+0.6310%/
4096/1/+0.0115%/-0.3693%/+0.3823%/
4096/2/-0.0209%/+0.8730%/-0.8862%/
4096/4/+0.0729%/-7.0303%/+7.6403%/
4096/8/-2.3720%/+0.0507%/-2.4214%/
16384/1/+0.0222%/-1.8672%/+1.9254%/
16384/2/+0.0986%/+3.2968%/-3.0961%/
16384/4/-1.2059%/+7.4291%/-8.0379%/
16384/8/-1.4893%/+0.3403%/-1.8234%/
65535/1/-0.0445%/-1.4060%/+1.3808%/
65535/2/-0.0311%/+0.9610%/-0.9827%/
65535/4/-0.7015%/+0.3660%/-1.0637%/
65535/8/-3.1585%/+11.1302%/[-12.8576%]/
Guest TX
size/sessions/throughput-+%/cpu-+%/per cpu throughput -+%/
64/1/[+75.2622%]/[-14.3928%]/[+104.7283%]/
64/2/[+68.9596%]/[-12.6655%]/[+93.4625%]/
64/4/[+68.0126%]/[-12.7982%]/[+92.6710%]/
64/8/[+67.9870%]/[-12.6297%]/[+92.2703%]/
256/1/[+160.4177%]/[-26.9643%]/[+256.5624%]/
256/2/[+48.4357%]/[-24.3380%]/[+96.1825%]/
256/4/[+48.3663%]/[-24.1127%]/[+95.5087%]/
256/8/[+47.9722%]/[-24.2516%]/[+95.3469%]/
1024/1/[+54.4474%]/[-52.9223%]/[+228.0694%]/
1024/2/+0.0742%/[-12.7444%]/[+14.6908%]/
1024/4/[+0.5524%]/-0.0327%/+0.5853%/
1024/8/[-1.2783%]/[+6.2902%]/[-7.1206%]/
4096/1/+0.0778%/-13.1121%/+15.1804%/
4096/2/+0.0189%/[-11.3176%]/[+12.7832%]/
4096/4/+0.0218%/-1.0389%/+1.0718%/
4096/8/-1.3774%/[+12.7396%]/[-12.5218%]/
16384/1/+0.0136%/-2.5043%/+2.5826%/
16384/2/+0.0509%/[-15.3846%]/[+18.2420%]/
16384/4/-0.0163%/[-4.8808%]/[+5.1141%]/
16384/8/[-1.7249%]/[+13.9174%]/[-13.7313%]/
65535/1/+0.0686%/-5.4942%/+5.8862%/
65535/2/+0.0043%/[-7.5816%]/[+8.2082%]/
65535/4/+0.0080%/[-7.2993%]/[+7.8827%]/
65535/8/[-1.3669%]/[+16.6536%]/[-15.4479%]/
Guest TCP_RR
size/sessions/throughput-+%/cpu-+%/per cpu throughput -+%/
256/1/-0.2914%/+12.6457%/-11.4848%/
256/25/-0.5968%/-5.0531%/+4.6935%/
256/50/+0.0262%/+0.2079%/-0.1813%/
4096/1/+2.6965%/[+16.1248%]/[-11.5636%]/
4096/25/-0.5002%/+0.5449%/-1.0395%/
4096/50/[-2.0987%]/-0.0330%/[-2.0664%]/
Tests on mlx4 was ongoing, will post the result in next week.
Jason Wang (3):
virtio: support for urgent descriptors
vhost: support urgent descriptors
virtio-net: conditionally enable tx interrupt
drivers/net/virtio_net.c | 164 ++++++++++++++++++++++++++++++---------
drivers/vhost/net.c | 43 +++++++---
drivers/vhost/scsi.c | 23 ++++--
drivers/vhost/test.c | 5 +-
drivers/vhost/vhost.c | 44 +++++++----
drivers/vhost/vhost.h | 19 +++--
drivers/virtio/virtio_ring.c | 75 +++++++++++++++++-
include/linux/virtio.h | 14 ++++
include/uapi/linux/virtio_ring.h | 5 +-
9 files changed, 308 insertions(+), 84 deletions(-)
--
1.8.3.1
^ permalink raw reply
* [PATCH] ipv6: remove aca_lock spinlock from struct ifacaddr6
From: roy.qing.li @ 2014-10-11 5:03 UTC (permalink / raw)
To: netdev
From: Li RongQing <roy.qing.li@gmail.com>
no user uses this lock.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
---
include/net/if_inet6.h | 1 -
net/ipv6/anycast.c | 1 -
2 files changed, 2 deletions(-)
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 55a8d40..98e5f95 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -146,7 +146,6 @@ struct ifacaddr6 {
struct ifacaddr6 *aca_next;
int aca_users;
atomic_t aca_refcnt;
- spinlock_t aca_lock;
unsigned long aca_cstamp;
unsigned long aca_tstamp;
};
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index f5e319a..baf2742 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -235,7 +235,6 @@ static struct ifacaddr6 *aca_alloc(struct rt6_info *rt,
/* aca_tstamp should be updated upon changes */
aca->aca_cstamp = aca->aca_tstamp = jiffies;
atomic_set(&aca->aca_refcnt, 1);
- spin_lock_init(&aca->aca_lock);
return aca;
}
--
1.7.10.4
^ permalink raw reply related
* [PATCH] net: fec: Fix sparse warnings with different lock contexts for basic block
From: Fugang Duan @ 2014-10-11 3:00 UTC (permalink / raw)
To: davem; +Cc: netdev, festevam, sparse, b20596, b38611
reproduce:
make ARCH=arm C=1 2>fec.txt drivers/net/ethernet/freescale/fec_main.o
cat fec.txt
sparse warnings:
drivers/net/ethernet/freescale/fec_main.c:2916:12: warning: context imbalance
in 'fec_set_features' - different lock contexts for basic block
Christopher Li suggest to change as below:
if (need_lock) {
lock();
do_something_real();
unlock();
} else {
do_something_real();
}
Reported-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Christopher Li <sparse@chrisli.org>
---
drivers/net/ethernet/freescale/fec_main.c | 24 ++++++++++++++----------
1 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 87975b5..7a8209e 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2912,20 +2912,12 @@ static void fec_poll_controller(struct net_device *dev)
#endif
#define FEATURES_NEED_QUIESCE NETIF_F_RXCSUM
-
-static int fec_set_features(struct net_device *netdev,
+static inline void fec_enet_set_netdev_features(struct net_device *netdev,
netdev_features_t features)
{
struct fec_enet_private *fep = netdev_priv(netdev);
netdev_features_t changed = features ^ netdev->features;
- /* Quiesce the device if necessary */
- if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
- napi_disable(&fep->napi);
- netif_tx_lock_bh(netdev);
- fec_stop(netdev);
- }
-
netdev->features = features;
/* Receive checksum has been changed */
@@ -2935,13 +2927,25 @@ static int fec_set_features(struct net_device *netdev,
else
fep->csum_flags &= ~FLAG_RX_CSUM_ENABLED;
}
+}
+
+static int fec_set_features(struct net_device *netdev,
+ netdev_features_t features)
+{
+ struct fec_enet_private *fep = netdev_priv(netdev);
+ netdev_features_t changed = features ^ netdev->features;
- /* Resume the device after updates */
if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
+ napi_disable(&fep->napi);
+ netif_tx_lock_bh(netdev);
+ fec_stop(netdev);
+ fec_enet_set_netdev_features(netdev, features);
fec_restart(netdev);
netif_tx_wake_all_queues(netdev);
netif_tx_unlock_bh(netdev);
napi_enable(&fep->napi);
+ } else {
+ fec_enet_set_netdev_features(netdev, features);
}
return 0;
--
1.7.8
^ permalink raw reply related
* [PATCH v2 net] x86: bpf_jit: fix two bugs in eBPF JIT compiler
From: Alexei Starovoitov @ 2014-10-11 3:30 UTC (permalink / raw)
To: David S. Miller
Cc: Darrick J. Wong, Eric Dumazet, Daniel Borkmann, H. Peter Anvin,
Thomas Gleixner, Ingo Molnar, netdev, linux-kernel
1.
JIT compiler using multi-pass approach to converge to final image size,
since x86 instructions are variable length. It starts with large
gaps between instructions (so some jumps may use imm32 instead of imm8)
and iterates until total program size is the same as in previous pass.
This algorithm works only if program size is strictly decreasing.
Programs that use LD_ABS insn need additional code in prologue, but it
was not emitted during 1st pass, so there was a chance that 2nd pass would
adjust imm32->imm8 jump offsets to the same number of bytes as increase in
prologue, which may cause algorithm to erroneously decide that size converged.
Fix it by always emitting largest prologue in the first pass which
is detected by oldproglen==0 check.
Also change error check condition 'proglen != oldproglen' to fail gracefully.
2.
while staring at the code realized that 64-byte buffer may not be enough
when 1st insn is large, so increase it to 128 to avoid buffer overflow
(theoretical maximum size of prologue+div is 109) and add runtime check.
Fixes: 622582786c9e ("net: filter: x86: internal BPF JIT")
Reported-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
---
v1->v2: reduce chances of stack corruption in case of future bugs (suggested by Eric)
note in classic BPF programs 1st insn is always short move, but native eBPF
programs may trigger buffer overflow. I couldn't force the crash with overflow,
since there are no further calls while this part of stack is used.
Both are ugly bugs regardless.
When net-next opens I will add narrowed down testcase from 'nmap' to testsuite.
arch/x86/net/bpf_jit_comp.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index d56cd1f..3f62734 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -182,12 +182,17 @@ struct jit_context {
bool seen_ld_abs;
};
+/* maximum number of bytes emitted while JITing one eBPF insn */
+#define BPF_MAX_INSN_SIZE 128
+#define BPF_INSN_SAFETY 64
+
static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
int oldproglen, struct jit_context *ctx)
{
struct bpf_insn *insn = bpf_prog->insnsi;
int insn_cnt = bpf_prog->len;
- u8 temp[64];
+ bool seen_ld_abs = ctx->seen_ld_abs | (oldproglen == 0);
+ u8 temp[BPF_MAX_INSN_SIZE + BPF_INSN_SAFETY];
int i;
int proglen = 0;
u8 *prog = temp;
@@ -225,7 +230,7 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
EMIT2(0x31, 0xc0); /* xor eax, eax */
EMIT3(0x4D, 0x31, 0xED); /* xor r13, r13 */
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
/* r9d : skb->len - skb->data_len (headlen)
* r10 : skb->data
*/
@@ -685,7 +690,7 @@ xadd: if (is_imm8(insn->off))
case BPF_JMP | BPF_CALL:
func = (u8 *) __bpf_call_base + imm32;
jmp_offset = func - (image + addrs[i]);
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
EMIT2(0x41, 0x52); /* push %r10 */
EMIT2(0x41, 0x51); /* push %r9 */
/* need to adjust jmp offset, since
@@ -699,7 +704,7 @@ xadd: if (is_imm8(insn->off))
return -EINVAL;
}
EMIT1_off32(0xE8, jmp_offset);
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
EMIT2(0x41, 0x59); /* pop %r9 */
EMIT2(0x41, 0x5A); /* pop %r10 */
}
@@ -804,7 +809,8 @@ emit_jmp:
goto common_load;
case BPF_LD | BPF_ABS | BPF_W:
func = CHOOSE_LOAD_FUNC(imm32, sk_load_word);
-common_load: ctx->seen_ld_abs = true;
+common_load:
+ ctx->seen_ld_abs = seen_ld_abs = true;
jmp_offset = func - (image + addrs[i]);
if (!func || !is_simm32(jmp_offset)) {
pr_err("unsupported bpf func %d addr %p image %p\n",
@@ -878,6 +884,11 @@ common_load: ctx->seen_ld_abs = true;
}
ilen = prog - temp;
+ if (ilen > BPF_MAX_INSN_SIZE) {
+ pr_err("bpf_jit_compile fatal insn size error\n");
+ return -EFAULT;
+ }
+
if (image) {
if (unlikely(proglen + ilen > oldproglen)) {
pr_err("bpf_jit_compile fatal error\n");
@@ -934,9 +945,11 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
goto out;
}
if (image) {
- if (proglen != oldproglen)
+ if (proglen != oldproglen) {
pr_err("bpf_jit: proglen=%d != oldproglen=%d\n",
proglen, oldproglen);
+ goto out;
+ }
break;
}
if (proglen == oldproglen) {
--
1.7.9.5
^ permalink raw reply related
* Re: [PATCH net] x86: bpf_jit: fix two bugs in eBPF JIT compiler
From: Alexei Starovoitov @ 2014-10-11 3:16 UTC (permalink / raw)
To: Eric Dumazet
Cc: David S. Miller, Darrick J. Wong, Eric Dumazet, Daniel Borkmann,
H. Peter Anvin, Thomas Gleixner, Ingo Molnar, Network Development,
LKML
In-Reply-To: <1412997161.9362.34.camel@edumazet-glaptop2.roam.corp.google.com>
On Fri, Oct 10, 2014 at 8:12 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> On Fri, 2014-10-10 at 19:44 -0700, Alexei Starovoitov wrote:
>
>> 2.
>> while staring at the code realized that 64-byte buffer may not be enough
>> when 1st insn is large, so increase it to 128 to avoid buffer overflow
>> (theoretical maximum size of prologue+div is 109) and add runtime check.
>>
>
>
>> diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
>> index d56cd1f..8266896 100644
>> --- a/arch/x86/net/bpf_jit_comp.c
>> +++ b/arch/x86/net/bpf_jit_comp.c
>> @@ -187,7 +187,8 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
>> {
>> struct bpf_insn *insn = bpf_prog->insnsi;
>> int insn_cnt = bpf_prog->len;
>> - u8 temp[64];
>> + bool seen_ld_abs = ctx->seen_ld_abs | (oldproglen == 0);
>> + u8 temp[128];
>
> Hmmm. I would use some guard like :
>
> #define BPF_MAX_INSN_SIZE 128
> #define BPF_INSN_SAFETY 64
>
> u8 temp[MAX_INSN_SIZE + BPF_INSN_SAFETY];
>
>
>> + if (ilen >= sizeof(temp)) {
>
> if (ilen > BPF_MAX_INSN_SIZE) {
> ...
>
>> + pr_err("bpf_jit_compile fatal insn size error\n");
>> + return -EFAULT;
>> + }
>> +
>
> Otherwise, we might have corrupted stack and panic anyway.
well, it only reduces the chances of stack corruption.. but yeah,
let's reduce them. will respin.
^ permalink raw reply
* Re: [PATCH net] x86: bpf_jit: fix two bugs in eBPF JIT compiler
From: Eric Dumazet @ 2014-10-11 3:12 UTC (permalink / raw)
To: Alexei Starovoitov
Cc: David S. Miller, Darrick J. Wong, Eric Dumazet, Daniel Borkmann,
H. Peter Anvin, Thomas Gleixner, Ingo Molnar, netdev,
linux-kernel
In-Reply-To: <1412995493-16100-1-git-send-email-ast@plumgrid.com>
On Fri, 2014-10-10 at 19:44 -0700, Alexei Starovoitov wrote:
> 2.
> while staring at the code realized that 64-byte buffer may not be enough
> when 1st insn is large, so increase it to 128 to avoid buffer overflow
> (theoretical maximum size of prologue+div is 109) and add runtime check.
>
> diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
> index d56cd1f..8266896 100644
> --- a/arch/x86/net/bpf_jit_comp.c
> +++ b/arch/x86/net/bpf_jit_comp.c
> @@ -187,7 +187,8 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
> {
> struct bpf_insn *insn = bpf_prog->insnsi;
> int insn_cnt = bpf_prog->len;
> - u8 temp[64];
> + bool seen_ld_abs = ctx->seen_ld_abs | (oldproglen == 0);
> + u8 temp[128];
Hmmm. I would use some guard like :
#define BPF_MAX_INSN_SIZE 128
#define BPF_INSN_SAFETY 64
u8 temp[MAX_INSN_SIZE + BPF_INSN_SAFETY];
> + if (ilen >= sizeof(temp)) {
if (ilen > BPF_MAX_INSN_SIZE) {
...
> + pr_err("bpf_jit_compile fatal insn size error\n");
> + return -EFAULT;
> + }
> +
Otherwise, we might have corrupted stack and panic anyway.
^ permalink raw reply
* [PATCH net] x86: bpf_jit: fix two bugs in eBPF JIT compiler
From: Alexei Starovoitov @ 2014-10-11 2:44 UTC (permalink / raw)
To: David S. Miller
Cc: Darrick J. Wong, Eric Dumazet, Daniel Borkmann, H. Peter Anvin,
Thomas Gleixner, Ingo Molnar, netdev, linux-kernel
1.
JIT compiler using multi-pass approach to converge to final image size,
since x86 instructions are variable length. It starts with large
gaps between instructions (so some jumps may use imm32 instead of imm8)
and iterates until total program size is the same as in previous pass.
This algorithm works only if program size is strictly decreasing.
Programs that use LD_ABS insn need additional code in prologue, but it
was not emitted during 1st pass, so there was a chance that 2nd pass would
adjust imm32->imm8 jump offsets to the same number of bytes as increase in
prologue, which may cause algorithm to erroneously decide that size converged.
Fix it by always emitting largest prologue in the first pass which
is detected by oldproglen==0 check.
Also change error check condition 'proglen != oldproglen' to fail gracefully.
2.
while staring at the code realized that 64-byte buffer may not be enough
when 1st insn is large, so increase it to 128 to avoid buffer overflow
(theoretical maximum size of prologue+div is 109) and add runtime check.
Fixes: 622582786c9e ("net: filter: x86: internal BPF JIT")
Reported-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
---
note in classic BPF programs 1st insn is always short move, but native eBPF
programs may trigger buffer overflow. I couldn't force the crash with overflow,
since there are no further calls while this part of stack is used.
Both are ugly bugs regardless.
When net-next opens I will add narrowed down testcase from 'nmap' to testsuite.
arch/x86/net/bpf_jit_comp.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index d56cd1f..8266896 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -187,7 +187,8 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
{
struct bpf_insn *insn = bpf_prog->insnsi;
int insn_cnt = bpf_prog->len;
- u8 temp[64];
+ bool seen_ld_abs = ctx->seen_ld_abs | (oldproglen == 0);
+ u8 temp[128];
int i;
int proglen = 0;
u8 *prog = temp;
@@ -225,7 +226,7 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
EMIT2(0x31, 0xc0); /* xor eax, eax */
EMIT3(0x4D, 0x31, 0xED); /* xor r13, r13 */
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
/* r9d : skb->len - skb->data_len (headlen)
* r10 : skb->data
*/
@@ -685,7 +686,7 @@ xadd: if (is_imm8(insn->off))
case BPF_JMP | BPF_CALL:
func = (u8 *) __bpf_call_base + imm32;
jmp_offset = func - (image + addrs[i]);
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
EMIT2(0x41, 0x52); /* push %r10 */
EMIT2(0x41, 0x51); /* push %r9 */
/* need to adjust jmp offset, since
@@ -699,7 +700,7 @@ xadd: if (is_imm8(insn->off))
return -EINVAL;
}
EMIT1_off32(0xE8, jmp_offset);
- if (ctx->seen_ld_abs) {
+ if (seen_ld_abs) {
EMIT2(0x41, 0x59); /* pop %r9 */
EMIT2(0x41, 0x5A); /* pop %r10 */
}
@@ -804,7 +805,8 @@ emit_jmp:
goto common_load;
case BPF_LD | BPF_ABS | BPF_W:
func = CHOOSE_LOAD_FUNC(imm32, sk_load_word);
-common_load: ctx->seen_ld_abs = true;
+common_load:
+ ctx->seen_ld_abs = seen_ld_abs = true;
jmp_offset = func - (image + addrs[i]);
if (!func || !is_simm32(jmp_offset)) {
pr_err("unsupported bpf func %d addr %p image %p\n",
@@ -878,6 +880,11 @@ common_load: ctx->seen_ld_abs = true;
}
ilen = prog - temp;
+ if (ilen >= sizeof(temp)) {
+ pr_err("bpf_jit_compile fatal insn size error\n");
+ return -EFAULT;
+ }
+
if (image) {
if (unlikely(proglen + ilen > oldproglen)) {
pr_err("bpf_jit_compile fatal error\n");
@@ -934,9 +941,11 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
goto out;
}
if (image) {
- if (proglen != oldproglen)
+ if (proglen != oldproglen) {
pr_err("bpf_jit: proglen=%d != oldproglen=%d\n",
proglen, oldproglen);
+ goto out;
+ }
break;
}
if (proglen == oldproglen) {
--
1.7.9.5
^ permalink raw reply related
* Re: fec_main: context imbalance in 'fec_set_features'
From: Christopher Li @ 2014-10-11 2:07 UTC (permalink / raw)
To: Fabio Estevam
Cc: Frank Li, Duan Fugang-B38611, David S. Miller,
netdev@vger.kernel.org, Linux-Sparse
In-Reply-To: <CAOMZO5CJKp7+d8EPRZdr-3Bd9UxVU8fxLybFZ4uLn+cUQjPH8w@mail.gmail.com>
On Thu, Oct 2, 2014 at 8:15 AM, Fabio Estevam <festevam@gmail.com> wrote:
> Hi,
>
> sparse complains the following:
>
> drivers/net/ethernet/freescale/fec_main.c:2835:12: warning: context
> imbalance in 'fec_set_features' - different lock contexts for basic
> block
That is expected to receive warnings. Sparse can't really tell the lock
and unlock are actually on the same condition and it never change.
>
> The code looks like this:
>
> static int fec_set_features(struct net_device *netdev,
> netdev_features_t features)
> {
> struct fec_enet_private *fep = netdev_priv(netdev);
> netdev_features_t changed = features ^ netdev->features;
>
> /* Quiesce the device if necessary */
> if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
e.g. netdev is running here, you take the lock.
> napi_disable(&fep->napi);
> netif_tx_lock_bh(netdev);
> fec_stop(netdev);
> }
>
> netdev->features = features;
>>
> /* Resume the device after updates */
> if (netif_running(netdev) && changed & FEATURES_NEED_QUIESCE) {
Then there is race some one shutdown the netdev before the code hits
here (is it possible? it is hard to tell from this source alone.)
Then the unlock is skipped.
> fec_restart(netdev);
> netif_tx_wake_all_queues(netdev);
Sparse is complaining, there exist a code path, from execution flow
point of view, (without considering the data flow analyze), there exists a
code path lock and unlock are not balanced.
It is possible that warning code path is not actually executable
due to data flow reason(e.g. "changed" never change during the same function).
But sparse did not have data flow analyze to know that.
If you move the code, e.g. the code inside the lock area into a function.
You can write:
if (need_lock) {
lock();
do_something_real();
unlock();
} else {
do_something_real();
}
That way, sparse don't see such a code path can trigger lock unbalanced.
Chris
^ permalink raw reply
* [PATCH net] tcp: fix ooo_okay setting vs Small Queues
From: Eric Dumazet @ 2014-10-11 1:06 UTC (permalink / raw)
To: David Miller; +Cc: netdev
From: Eric Dumazet <edumazet@google.com>
TCP Small Queues (tcp_tsq_handler()) can hold one reference on
sk->sk_wmem_alloc, preventing skb->ooo_okay being set.
We should relax test done to set skb->ooo_okay to take care
of this extra reference.
Minimal truesize of skb containing one byte of payload is
SKB_TRUESIZE(1)
Without this fix, we have more chance locking flows into the wrong
transmit queue.
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
net/ipv4/tcp_output.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 8d4eac793700..e2be1f80e0be 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -914,9 +914,13 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
tcp_ca_event(sk, CA_EVENT_TX_START);
/* if no packet is in qdisc/device queue, then allow XPS to select
- * another queue.
+ * another queue. We can be called from tcp_tsq_handler()
+ * which holds one reference to sk_wmem_alloc.
+ *
+ * TODO: Ideally, in-flight pure ACK packets should not matter here.
+ * One way to get this would be to set skb->truesize = 2 on them.
*/
- skb->ooo_okay = sk_wmem_alloc_get(sk) == 0;
+ skb->ooo_okay = sk_wmem_alloc_get(sk) < SKB_TRUESIZE(1);
skb_push(skb, tcp_header_size);
skb_reset_transport_header(skb);
^ permalink raw reply related
* RE: [PATCH net 1/1] hyperv: Fix a bug in netvsc_send()
From: Long Li @ 2014-10-10 23:39 UTC (permalink / raw)
To: Sitsofe Wheeler, David Miller
Cc: olaf@aepfle.de, netdev@vger.kernel.org, jasowang@redhat.com,
linux-kernel@vger.kernel.org, apw@canonical.com,
devel@linuxdriverproject.org
In-Reply-To: <20141009133200.GA17134@sucs.org>
Thanks Sitsofe. Can you provide more details on the test setup?
The kernel trace shows that skb->mac_header=0xffff (which means not yet set, it's in RCX: 000000000000ffff).
-----Original Message-----
From: devel [mailto:driverdev-devel-bounces@linuxdriverproject.org] On Behalf Of Sitsofe Wheeler
Sent: Thursday, October 09, 2014 6:32 AM
To: David Miller
Cc: olaf@aepfle.de; netdev@vger.kernel.org; jasowang@redhat.com; linux-kernel@vger.kernel.org; apw@canonical.com; devel@linuxdriverproject.org
Subject: Re: [PATCH net 1/1] hyperv: Fix a bug in netvsc_send()
On Sun, Oct 05, 2014 at 09:11:29PM -0400, David Miller wrote:
> From: "K. Y. Srinivasan" <kys@microsoft.com>
> Date: Sun, 5 Oct 2014 10:42:51 -0700
>
> > After the packet is successfully sent, we should not touch the
> > packet as it may have been freed. This patch is based on the work
> > done by Long Li <longli@microsoft.com>.
> >
> > David, please queue this up for stable.
With 3.17.0 g782d59c (which should include this patch) I'm still seeing the following:
Oct 09 13:14:51 a network[428]: Bringing up interface eth0:
Oct 09 13:14:51 a dhclient[538]: DHCPREQUEST on eth0 to 255.255.255.255 port 67 (xid=0x1dd33078) Oct 09 13:14:51 a dhclient[538]: DHCPACK from 10.x.x.x (xid=0x1dd33078) Oct 09 13:14:55 a kernel: BUG: unable to handle kernel paging request at ffff8800ed2e72e3 Oct 09 13:14:55 a kernel: IP: [<ffffffff814ede1d>] netvsc_select_queue+0x3d/0x150 Oct 09 13:14:55 a kernel: PGD 2db5067 PUD 2075be067 PMD 207454067 PTE 80000000ed2e7060 Oct 09 13:14:55 a kernel: Oops: 0000 [#1] SMP DEBUG_PAGEALLOC Oct 09 13:14:55 a kernel: CPU: 6 PID: 566 Comm: arping Not tainted 3.17.0.x86_64-05585-g782d59c #147 Oct 09 13:14:55 a kernel: Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 Oct 09 13:14:55 a kernel: task: ffff8801f978b9f0 ti: ffff8801f3b84000 task.ti: ffff8801f3
b84000 Oct 09 13:14:55 a kernel: RIP: 0010:[<ffffffff814ede1d>] [<ffffffff814ede1d>] netvsc_select_queue+0x3d/0x150 Oct 09 13:14:55 a kernel: RSP: 0018:ffff8801f3b87c60 EFLAGS: 00010202 Oc
t 09 13:14:55 a kernel: RAX: 0000000000000000 RBX: ffff8800f13e8000 RCX: 000000000000ffff Oct 09 13:14:55 a kernel: RDX: ffff8800ed2d72d8 RSI: ffff8801fabca1c0 RDI: ffff8800f13e8000 Oct 09 13:14:55 a kernel: RBP: ffff8801f3b87c88 R08: 000000000000002a R09: 0000000000000000 Oct 09 13:14:55 a kernel: R10: ffff8801f83b3f60 R11: 0000000000000008 R12: ffff8801fabca1c0 Oct 09 13:14:55 a kernel: R13: 0000000000000000 R14: ffff8800ed359bd8 R15: ffff8801fabca1c0 Oct 09 13:14:55 a kernel: FS: 00007f943a5c9740(0000) GS:ffff880206cc0000(0000) knlGS:0000000000000000 Oct 09 13:14:55 a kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 09 13:14:55 a kernel: CR2: ffff8800ed2e72e3 CR3: 00000001f3957000 CR4: 00000000000406e0 Oct 09 13:14:55 a kernel: Stack:
Oct 09 13:14:55 a kernel: ffffffff816a0221 ffff8800f13e8000 000000000000001c 0000000000000000 Oct 09 13:14:55 a kernel: ffff8800ed359bd8 ffff8801f3b87d48 ffffffff816a3fce ffff8801f3b87cb0 Oct 09 13:14:55 a kernel: ffffffff816c34a7 0000000000000001 ffff8801f3b87db8 000000000000001c Oct 09 13:14:55 a kernel: Call Trace:
Oct 09 13:14:55 a kernel: [<ffffffff816a0221>] ? packet_pick_tx_queue+0x31/0xa0 Oct 09 13:14:55 a kernel: [<ffffffff816a3fce>] packet_sendmsg+0xc6e/0xe30 Oct 09 13:14:55 a kernel: [<ffffffff816c34a7>] ? _raw_spin_unlock+0x27/0x40 Oct 09 13:14:55 a kernel: [<ffffffff81091bba>] ? prepare_creds+0x3a/0x170 Oct 09 13:14:55 a kernel: [<ffffffff815d2e08>] sock_sendmsg+0x88/0xb0 Oct 09 13:14:55 a kernel: [<ffffffff81188f83>] ? might_fault+0xa3/0xb0 Oct 09 13:14:55 a kernel: [<ffffffff81188f3a>] ? might_fault+0x5a/0xb0 Oct 09 13:14:55 a kernel: [<ffffffff815d2f3e>] SYSC_sendto+0x10e/0x150 Oct 09 13:14:55 a kernel: [<ffffffff81188f3a>] ? might_fault+0x5a/0xb0 Oct 09 13:14:55 a kernel: [<ffffffff816c41d5>] ? sysret_check+0x22/0x5d Oct 09 13:14:55 a kernel: [<ffffffff810ba3fd>] ? trace_hard
irqs_on_caller+0x17d/0x210
Oct 09 13:14:55 a kernel: [<ffffffff813a20ee>] ? trace_hardirqs_on_thunk+0x3a/0x3f Oct 09 13:14:55 a kernel: [<ffffffff815d3f1e>] SyS_sendto+0xe/0x10 Oct 09 13:14:55 a kernel: [<ffffffff816c41a9>] system_call_fastpath+0x16/0x1b Oct 09 13:14:55 a kernel: Code: 00 4d 85 d2 0f 84 1c 01 00 00 44 8b 9f 8c 03 00 00 31 c0 41 83 fb 01 0f 86 1b 01 00 00 0f b7 8e b6 00 00 00 Oct 09 13:14:55 a kernel: RIP [<ffffffff814ede1d>] netvsc_select_queue+0x3d/0x150 Oct 09 13:14:55 a kernel: RSP <ffff8801f3b87c60> Oct 09 13:14:55 a kernel: CR2: ffff8800ed2e72e3 Oct 09 13:14:55 a kernel: ---[ end trace e52f922dd7435e0d ]---
Was the above meant to have been fixed by the patch "[PATCH 1/1]
Drivers: net: hyperv: Cleanup netvsc_change_mtu ()" from
https://lkml.org/lkml/2014/8/29/369 ? If so will that patch be resent?
--
Sitsofe | http://sucs.org/~sits/
_______________________________________________
devel mailing list
devel@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
^ permalink raw reply
* Re: [RFC v2 3/6] kthread: warn on kill signal if not OOM
From: Tom Gundersen @ 2014-10-10 22:45 UTC (permalink / raw)
To: Anatol Pomozov
Cc: One Thousand Gnomes, Takashi Iwai, Kay Sievers, Sreekanth Reddy,
James Bottomley, Praveen Krishnamoorthy, hare,
Nagalakshmi Nandigama, Wu Zhangjin, Tetsuo Handa,
mpt-fusionlinux.pdl, Tim Gardner, Benjamin Poirier,
Santosh Rastapur, Casey Leedom, Hariprasad S, Pierre Fersing,
Arjan van de Ven, Abhijit Mahajan, systemd Mailing List
In-Reply-To: <CAOMFOmVSwPAbPtNzPn93QGjbXh1B3QC7B2Ahd1Qxc=gWb6H7fQ@mail.gmail.com>
On Fri, Oct 10, 2014 at 11:54 PM, Anatol Pomozov
<anatol.pomozov@gmail.com> wrote:
> 1) Why not to make the timeout configurable through config file? There
> is already udev.conf you can put config option there. Thus people with
> modprobe issues can easily "fix" the problem. And then decrease
> default timeout back to 30 seconds. I agree that long module loading
> (more than 30 secs) is abnormal and should be investigated by driver
> authors.
We can already configure this either on the udev or kernel
commandline, is that not sufficient (I don't object to also adding it
to the config file, just asking)?
> 2) Could you add 'echo w > /proc/sysrq-trigger' to udev code right
> before killing the "modprobe" thread? sysrq will print information
> about stuck threads (including modprobe itself) this will make
> debugging easier. e.g. dmesg here
> https://bugs.archlinux.org/task/40454 says nothing where the threads
> were stuck.
Are the current warnings (in udev git) sufficient (should tell you
which module is taking long, but still won't tell you which kernel
thread of course)?
Cheers,
Tom
^ permalink raw reply
* Problem - Connection reset - Ralink RT3290 - HP Split 13 x2
From: Vincent Fortier @ 2014-10-10 22:39 UTC (permalink / raw)
To: netdev
My connection stop really really often. Sometimes it works for up to
an hour but usually within 10-15 minutes it just stop/reset.
Presumably networkmanager restarts it.
Tested using 3.16 & 3.17.
Device:
03:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
Subsystem: Hewlett-Packard Company Ralink RT3290LE 802.11bgn 1x1
Wi-Fi and Bluetooth 4.0 Combo Adapter
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at b0410000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: rt2800pci
Getting the following messsages in syslog:
Oct 10 17:45:36 brutus kernel: [ 4.937845] ieee80211 phy0:
rt2x00_set_rt: Info - RT chipset 3290, rev 0015 detected
Oct 10 17:45:36 brutus kernel: [ 4.941563] ieee80211 phy0:
rt2x00_set_rf: Info - RF chipset 3290 detected
Oct 10 17:45:36 brutus kernel: [ 4.983868] ieee80211 phy0: Selected
rate control algorithm 'minstrel_ht'
Oct 10 17:45:37 brutus NetworkManager[877]: <info> rfkill0: found WiFi
radio killswitch (at
/sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/ieee80211/phy0/rfkill0)
(driver rt2800pci)
Oct 10 17:45:37 brutus kernel: [ 5.610165] ieee80211 phy0:
rt2x00lib_request_firmware: Info - Loading firmware file 'rt3290.bin'
Oct 10 17:45:37 brutus kernel: [ 5.611453] ieee80211 phy0:
rt2x00lib_request_firmware: Info - Firmware detected - version: 0.37
Oct 10 17:46:01 brutus kernel: [ 29.621979] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:01 brutus kernel: [ 30.070125] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 0 failed to flush
Oct 10 17:46:01 brutus kernel: [ 30.230153] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:02 brutus kernel: [ 30.678194] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:02 brutus kernel: [ 31.190166] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 0 failed to flush
Oct 10 17:46:02 brutus kernel: [ 31.350260] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:03 brutus kernel: [ 31.798309] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:03 brutus kernel: [ 32.246352] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 0 failed to flush
Oct 10 17:46:03 brutus kernel: [ 32.406369] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:46:04 brutus kernel: [ 32.918438] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:49:01 brutus kernel: [ 210.316739] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:49:02 brutus kernel: [ 210.764804] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:49:02 brutus kernel: [ 211.276854] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:49:03 brutus kernel: [ 211.724905] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:50:04 brutus kernel: [ 272.647105] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:51:27 brutus kernel: [ 355.999778] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:51:28 brutus kernel: [ 357.183902] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:53:11 brutus kernel: [ 460.055960] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:57:10 brutus kernel: [ 699.528350] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 0 failed to flush
Oct 10 17:57:11 brutus kernel: [ 699.688416] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 17:57:11 brutus kernel: [ 700.136713] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 18:01:10 brutus kernel: [ 939.336908] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Oct 10 18:01:11 brutus kernel: [ 939.801190] ieee80211 phy0:
rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
Help much appreciated. Thnx in advance.
- vin
^ permalink raw reply
* [PATCHv2 1/1] ip-link: add switch to show human readable output
From: Christian Hesse @ 2014-10-10 22:27 UTC (permalink / raw)
To: netdev; +Cc: Christian Hesse
Byte and packet count can increase to really big numbers. This adds a
switch to show human readable output.
% ip -s link ls wl
4: wl: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether 00:de:ad:be:ee:ef brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
113570876 156975 0 0 0 0
TX: bytes packets errors dropped carrier collsns
27290790 94313 0 0 0 0
% ip -s -h link ls wl
4: wl: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether 00:de:ad:be:ee:ef brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped overrun mcast
122368888 169840 0 0 0 0
116.7Mi 165.8Ki 0 0 0 0
TX: bytes packets errors dropped carrier collsns
29087507 102309 0 0 0 0
27.7Mi 99.9Ki 0 0 0 0
---
include/utils.h | 1 +
ip/ip.c | 5 ++
ip/ipaddress.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++--
man/man8/ip-link.8.in | 1 +
4 files changed, 146 insertions(+), 4 deletions(-)
diff --git a/include/utils.h b/include/utils.h
index 704dc51..7bb19e9 100644
--- a/include/utils.h
+++ b/include/utils.h
@@ -11,6 +11,7 @@
#include "rtm_map.h"
extern int preferred_family;
+extern int human_readable;
extern int show_stats;
extern int show_details;
extern int show_raw;
diff --git a/ip/ip.c b/ip/ip.c
index 739b88d..6b352c8 100644
--- a/ip/ip.c
+++ b/ip/ip.c
@@ -24,6 +24,7 @@
#include "ip_common.h"
int preferred_family = AF_UNSPEC;
+int human_readable = 0;
int show_stats = 0;
int show_details = 0;
int resolve_hosts = 0;
@@ -47,6 +48,7 @@ static void usage(void)
" tunnel | tuntap | maddr | mroute | mrule | monitor | xfrm |\n"
" netns | l2tp | tcp_metrics | token | netconf }\n"
" OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
+" -h[uman-readable] |\n"
" -f[amily] { inet | inet6 | ipx | dnet | bridge | link } |\n"
" -4 | -6 | -I | -D | -B | -0 |\n"
" -l[oops] { maximum-addr-flush-attempts } |\n"
@@ -212,6 +214,9 @@ int main(int argc, char **argv)
preferred_family = AF_DECnet;
} else if (strcmp(opt, "-B") == 0) {
preferred_family = AF_BRIDGE;
+ } else if (matches(opt, "-human") == 0 ||
+ matches(opt, "-human-readable") == 0) {
+ ++human_readable;
} else if (matches(opt, "-stats") == 0 ||
matches(opt, "-statistics") == 0) {
++show_stats;
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 45729d8..d625434 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -319,6 +319,54 @@ static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
}
}
+static void print_human64(FILE *fp, int length, uint64_t count)
+{
+ int written;
+
+ if (count > 1125899906842624) /* 2**50 */
+ written = fprintf(fp, "%"PRIu64".%"PRIu64"Pi",
+ count / 1125899906842624,
+ count * 10 / 1125899906842624 % 10);
+ else if (count > 1099511627776) /* 2**40 */
+ written = fprintf(fp, "%"PRIu64".%"PRIu64"Ti",
+ count / 1099511627776,
+ count * 10 / 1099511627776 % 10);
+ else if (count > 1073741824) /* 2**30 */
+ written = fprintf(fp, "%"PRIu64".%"PRIu64"Gi",
+ count / 1073741824, count * 10 / 1073741824 % 10);
+ else if (count > 1048576) /* 2**20 */
+ written = fprintf(fp, "%"PRIu64".%"PRIu64"Mi",
+ count / 1048576, count * 10 / 1048576 % 10);
+ else if (count > 1024) /* 2**10 */
+ written = fprintf(fp, "%"PRIu64".%"PRIu64"Ki",
+ count / 1024, count * 10 / 1024 % 10);
+ else
+ written = fprintf(fp, "%"PRIu64, count);
+
+ while(written++ <= length)
+ fputc(' ', fp);
+}
+
+static void print_human32(FILE *fp, int length, uint32_t count)
+{
+ int written;
+
+ if (count > 1073741824) /* 2**30 */
+ written = fprintf(fp, "%u.%uGi",
+ count / 1073741824, count * 10 / 1073741824 % 10);
+ else if (count > 1048576) /* 2**20 */
+ written = fprintf(fp, "%u.%uMi",
+ count / 1048576, count * 10 / 1048576 % 10);
+ else if (count > 1024) /* 2**10 */
+ written = fprintf(fp, "%u.%uKi",
+ count / 1024, count * 10 / 1024 % 10);
+ else
+ written = fprintf(fp, "%u", count);
+
+ while(written++ <= length)
+ fputc(' ', fp);
+}
+
static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s,
const struct rtattr *carrier_changes)
{
@@ -334,15 +382,36 @@ static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s,
if (s->rx_compressed)
fprintf(fp, " %-7"PRIu64"",
(uint64_t)s->rx_compressed);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human64(fp, 10, (uint64_t)s->rx_bytes);
+ print_human64(fp, 8, (uint64_t)s->rx_packets);
+ print_human64(fp, 7, (uint64_t)s->rx_errors);
+ print_human64(fp, 7, (uint64_t)s->rx_dropped);
+ print_human64(fp, 7, (uint64_t)s->rx_over_errors);
+ print_human64(fp, 7, (uint64_t)s->multicast);
+ if (s->rx_compressed)
+ print_human64(fp, 7, (uint64_t)s->rx_compressed);
+ }
if (show_stats > 1) {
fprintf(fp, "%s", _SL_);
fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
- fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
+ fprintf(fp, " %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
(uint64_t)s->rx_length_errors,
(uint64_t)s->rx_crc_errors,
(uint64_t)s->rx_frame_errors,
(uint64_t)s->rx_fifo_errors,
(uint64_t)s->rx_missed_errors);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human64(fp, 8, (uint64_t)s->rx_length_errors);
+ print_human64(fp, 7, (uint64_t)s->rx_crc_errors);
+ print_human64(fp, 7, (uint64_t)s->rx_frame_errors);
+ print_human64(fp, 7, (uint64_t)s->rx_fifo_errors);
+ print_human64(fp, 7, (uint64_t)s->rx_missed_errors);
+ }
}
fprintf(fp, "%s", _SL_);
fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
@@ -357,13 +426,25 @@ static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s,
if (s->tx_compressed)
fprintf(fp, " %-7"PRIu64"",
(uint64_t)s->tx_compressed);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human64(fp, 10, (uint64_t)s->tx_bytes);
+ print_human64(fp, 8, (uint64_t)s->tx_packets);
+ print_human64(fp, 7, (uint64_t)s->tx_errors);
+ print_human64(fp, 7, (uint64_t)s->tx_dropped);
+ print_human64(fp, 7, (uint64_t)s->tx_carrier_errors);
+ print_human64(fp, 7, (uint64_t)s->collisions);
+ if (s->tx_compressed)
+ print_human64(fp, 7, (uint64_t)s->tx_compressed);
+ }
if (show_stats > 1) {
fprintf(fp, "%s", _SL_);
fprintf(fp, " TX errors: aborted fifo window heartbeat");
if (carrier_changes)
fprintf(fp, " transns");
fprintf(fp, "%s", _SL_);
- fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-8"PRIu64"",
+ fprintf(fp, " %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-8"PRIu64"",
(uint64_t)s->tx_aborted_errors,
(uint64_t)s->tx_fifo_errors,
(uint64_t)s->tx_window_errors,
@@ -371,6 +452,17 @@ static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s,
if (carrier_changes)
fprintf(fp, " %-7u",
*(uint32_t*)RTA_DATA(carrier_changes));
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human64(fp, 8, (uint64_t)s->tx_aborted_errors);
+ print_human64(fp, 7, (uint64_t)s->tx_fifo_errors);
+ print_human64(fp, 7, (uint64_t)s->tx_window_errors);
+ print_human64(fp, 7, (uint64_t)s->tx_heartbeat_errors);
+ if (carrier_changes)
+ print_human64(fp, 7, (uint64_t)*(uint32_t*)RTA_DATA(carrier_changes));
+ }
+
}
}
@@ -386,16 +478,37 @@ static void print_link_stats32(FILE *fp, const struct rtnl_link_stats *s,
);
if (s->rx_compressed)
fprintf(fp, " %-7u", s->rx_compressed);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human32(fp, 10, s->rx_bytes);
+ print_human32(fp, 8, s->rx_packets);
+ print_human32(fp, 7, s->rx_errors);
+ print_human32(fp, 7, s->rx_dropped);
+ print_human32(fp, 7, s->rx_over_errors);
+ print_human32(fp, 7, s->multicast);
+ if (s->rx_compressed)
+ print_human32(fp, 7, s->rx_compressed);
+ }
if (show_stats > 1) {
fprintf(fp, "%s", _SL_);
fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
- fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
+ fprintf(fp, " %-8u %-7u %-7u %-7u %-7u",
s->rx_length_errors,
s->rx_crc_errors,
s->rx_frame_errors,
s->rx_fifo_errors,
s->rx_missed_errors
);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human32(fp, 8, s->rx_length_errors);
+ print_human32(fp, 7, s->rx_crc_errors);
+ print_human32(fp, 7, s->rx_frame_errors);
+ print_human32(fp, 7, s->rx_fifo_errors);
+ print_human32(fp, 7, s->rx_missed_errors);
+ }
}
fprintf(fp, "%s", _SL_);
fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
@@ -405,13 +518,25 @@ static void print_link_stats32(FILE *fp, const struct rtnl_link_stats *s,
s->tx_dropped, s->tx_carrier_errors, s->collisions);
if (s->tx_compressed)
fprintf(fp, " %-7u", s->tx_compressed);
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human32(fp, 10, s->tx_bytes);
+ print_human32(fp, 8, s->tx_packets);
+ print_human32(fp, 7, s->tx_errors);
+ print_human32(fp, 7, s->tx_dropped);
+ print_human32(fp, 7, s->tx_carrier_errors);
+ print_human32(fp, 7, s->collisions);
+ if (s->tx_compressed)
+ print_human32(fp, 7, s->tx_compressed);
+ }
if (show_stats > 1) {
fprintf(fp, "%s", _SL_);
fprintf(fp, " TX errors: aborted fifo window heartbeat");
if (carrier_changes)
fprintf(fp, " transns");
fprintf(fp, "%s", _SL_);
- fprintf(fp, " %-7u %-7u %-7u %-8u",
+ fprintf(fp, " %-8u %-7u %-7u %-8u",
s->tx_aborted_errors,
s->tx_fifo_errors,
s->tx_window_errors,
@@ -420,6 +545,16 @@ static void print_link_stats32(FILE *fp, const struct rtnl_link_stats *s,
if (carrier_changes)
fprintf(fp, " %-7u",
*(uint32_t*)RTA_DATA(carrier_changes));
+ if (human_readable) {
+ fprintf(fp, "%s", _SL_);
+ fprintf(fp, " ");
+ print_human32(fp, 8, s->tx_aborted_errors);
+ print_human32(fp, 7, s->tx_fifo_errors);
+ print_human32(fp, 7, s->tx_window_errors);
+ print_human32(fp, 7, s->tx_heartbeat_errors);
+ if (carrier_changes)
+ print_human32(fp, 7, *(uint32_t*)RTA_DATA(carrier_changes));
+ }
}
}
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 383917a..9c20dd0 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -16,6 +16,7 @@ ip-link \- network device configuration
.ti -8
.IR OPTIONS " := { "
\fB\-V\fR[\fIersion\fR] |
+\fB\-h\fR[\fIuman-readable\fR] |
\fB\-s\fR[\fItatistics\fR] |
\fB\-r\fR[\fIesolve\fR] |
\fB\-f\fR[\fIamily\fR] {
--
2.1.2
^ permalink raw reply related
* Re: [PATCH net 1/3] net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks
From: Daniel Borkmann @ 2014-10-10 22:06 UTC (permalink / raw)
To: Joshua Kinard; +Cc: davem, linux-sctp, netdev, Vlad Yasevich
In-Reply-To: <5437AF27.2030506@gentoo.org>
On 10/10/2014 12:04 PM, Joshua Kinard wrote:
...
> If I am reading correctly, this crash can only be triggered by actually getting
> through the SCTP handshake, then sending this specially-crafted ASCONF chunk?
> Meaning a blind nmap scan using this tactic against a random netblock wouldn't
> just randomly knock servers offline? This would seem to reduce the attack
> surface a quite bit by requiring the remote endpoint to actually respond.
Sorry, have been on travel almost whole day ... yes, handshake has to be
completed before that. So a scan/probe would need to establish a connection
first and ASCONF would need to be supported.
> Is there a CVE # for this?
CVE-2014-3673
^ permalink raw reply
* Re: [PATCH net 2/3] net: sctp: fix panic on duplicate ASCONF chunks
From: Daniel Borkmann @ 2014-10-10 22:02 UTC (permalink / raw)
To: Neil Horman; +Cc: davem, linux-sctp, netdev, Vlad Yasevich
In-Reply-To: <20141010153954.GE19499@hmsreliant.think-freely.org>
On 10/10/2014 05:39 PM, Neil Horman wrote:
...
> Is it worth adding a WARN_ON, to indicate that two ASCONF chunks have been
> received with duplicate serials?
Don't think so, as this would be triggerable from outside.
Thanks,
Daniel
^ permalink raw reply
* Re: [PATCH v1 2/3] drivers: net: xgene: Add SGMII based 1GbE support
From: Francois Romieu @ 2014-10-10 22:01 UTC (permalink / raw)
To: Iyappan Subramanian
Cc: davem, netdev, devicetree, linux-arm-kernel, patches, kchudgar
In-Reply-To: <1412972316-16344-3-git-send-email-isubramanian@apm.com>
Iyappan Subramanian <isubramanian@apm.com> :
[...]
> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
> index c8f3824..63ea194 100644
> --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
> @@ -410,7 +410,6 @@ static void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
> addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
> (dev_addr[1] << 8) | dev_addr[0];
> addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
> - addr1 |= pdata->phy_addr & 0xFFFF;
phy_addr removal is harmless (all zeroes from netdev priv data) but it's
unrelated to $SUBJECT.
You may split this patch as:
1. prettyfication / cruft removal
2. add link_state in xgene_mac_ops / pdata->rm shuffle
3. SGMII based 1GbE support
Mostly stylistic review below.
[...]
> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
> index 15ec426..dc024c1 100644
> --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
[...]
> @@ -179,7 +180,6 @@ enum xgene_enet_rm {
> #define TUND_ADDR 0x4a
>
> #define TSO_IPPROTO_TCP 1
> -#define FULL_DUPLEX 2
See above.
>
> #define USERINFO_POS 0
> #define USERINFO_LEN 32
[...]
> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
> new file mode 100644
> index 0000000..6038596
> --- /dev/null
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
[...]
> +static void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata,
> + u32 offset, u32 val)
> +{
> + void __iomem *addr = pdata->eth_csr_addr + offset;
> +
> + iowrite32(val, addr);
> +}
Replace 'pdata' with one of 'xp', 'pd', 'p' ?
You should be able to pack a lot.
static void xgene_enet_wr_csr(struct xgene_enet_pdata *p, u32 offset, u32 val)
{
iowrite32(val, p->eth_csr_addr + offset);
}
There are several of those.
[...]
> +static bool xgene_enet_wr_indirect(void __iomem *addr, void __iomem *wr,
> + void __iomem *cmd, void __iomem *cmd_done,
> + u32 wr_addr, u32 wr_data)
> +{
> + u32 done;
> + u8 wait = 10;
> +
> + iowrite32(wr_addr, addr);
> + iowrite32(wr_data, wr);
> + iowrite32(XGENE_ENET_WR_CMD, cmd);
> +
> + /* wait for write command to complete */
> + while (!(done = ioread32(cmd_done)) && wait--)
> + udelay(1);
> +
> + if (!done)
> + return false;
int i;
for (i = 0; i < 10; i++) {
if (ioread32(cmd_done)) {
iowrite32(0, cmd);
return true;
}
udelay(1);
}
return false;
> +
> + iowrite32(0, cmd);
> +
> + return true;
> +}
> +
> +static void xgene_enet_wr_mac(struct xgene_enet_pdata *pdata,
> + u32 wr_addr, u32 wr_data)
> +{
> + void __iomem *addr, *wr, *cmd, *cmd_done;
> +
> + addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
> + wr = pdata->mcx_mac_addr + MAC_WRITE_REG_OFFSET;
> + cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
> + cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
struct xgene_indirect_ctl {
void __iomem *addr;
void __iomem *ctl;
void __iomem *cmd;
void __iomem *cmd_done;
};
static void xgene_enet_wr_mac(struct xgene_enet_pdata *p, u32 addr, u32 data)
{
struct xgene_indirect_ctl ctl = {
.addr = p->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
.ctl = p->mcx_mac_addr + MAC_WRITE_REG_OFFSET;
.cmd = p->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
.cmd_done = p->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
};
if (!xgene_enet_wr_indirect(&ctl, wr_addr, wr_data)) {
...
It's syntaxic sugar that avoids (an excess of) 'void *' parameters.
You could reuse it for xgene_enet_rd_mac.
> +
> + if (!xgene_enet_wr_indirect(addr, wr, cmd, cmd_done, wr_addr, wr_data))
> + netdev_err(pdata->ndev, "MCX mac write failed, addr: %04x\n",
> + wr_addr);
> +}
> +
> +static void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata,
> + u32 offset, u32 *val)
> +{
> + void __iomem *addr = pdata->eth_csr_addr + offset;
> +
> + *val = ioread32(addr);
> +}
static u32 xgene_enet_rd_csr(struct xgene_enet_pdata *pdata, u32 offset)
{
return ioread32(pdata->eth_csr_addr + offset);
}
> +
> +static void xgene_enet_rd_diag_csr(struct xgene_enet_pdata *pdata,
> + u32 offset, u32 *val)
> +{
> + void __iomem *addr = pdata->eth_diag_csr_addr + offset;
> +
> + *val = ioread32(addr);
> +}
> +
> +static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd,
> + void __iomem *cmd, void __iomem *cmd_done,
> + u32 rd_addr, u32 *rd_data)
> +{
> + u32 done;
> + u8 wait = 10;
> +
> + iowrite32(rd_addr, addr);
> + iowrite32(XGENE_ENET_RD_CMD, cmd);
> +
> + /* wait for read command to complete */
> + while (!(done = ioread32(cmd_done)) && wait--)
> + udelay(1);
> +
> + if (!done)
> + return false;
See above.
[...]
> +static void xgene_sgmac_rx_enable(struct xgene_enet_pdata *pdata)
> +{
> + u32 data;
> +
> + xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
> + xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN);
> +}
> +
> +static void xgene_sgmac_tx_enable(struct xgene_enet_pdata *pdata)
> +{
> + u32 data;
> +
> + xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
> + xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN);
> +}
static void _xgene_sgmac_rxtx(struct xgene_enet_pdata *p, bool set, u32 bits)
{
u32 data;
xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
if (set)
data |= bits;
else
data &= ~bits;
xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data);
}
(or _xgene_sgmac_rxtx(struct xgene_enet_pdata *p, u32 set, u32 clear))
static void xgene_sgmac_rxtx_set(struct xgene_enet_pdata *p, u32 bits)
{
_xgene_sgmac_rxtx(p, true, bits);
}
static void xgene_sgmac_rx_enable(struct xgene_enet_pdata *p)
{
xgene_sgmac_rxtx_set(p, RX_EN);
}
static void xgene_sgmac_tx_enable(struct xgene_enet_pdata *p)
{
xgene_sgmac_rxtx_set(p, TX_EN);
}
static void xgene_sgmac_rxtx_clear(struct xgene_enet_pdata *p, u32 bits)
{
_xgene_sgmac_rxtx(p, false, bits);
}
etc.
[...]
> +struct xgene_mac_ops xgene_sgmac_ops = {
> + .init = xgene_sgmac_init,
> + .reset = xgene_sgmac_reset,
> + .rx_enable = xgene_sgmac_rx_enable,
> + .tx_enable = xgene_sgmac_tx_enable,
> + .rx_disable = xgene_sgmac_rx_disable,
> + .tx_disable = xgene_sgmac_tx_disable,
> + .set_mac_addr = xgene_sgmac_set_mac_addr,
> + .link_state = xgene_enet_link_state
Please use tabs before '='.
> +};
> +
> +struct xgene_port_ops xgene_sgport_ops = {
> + .reset = xgene_enet_reset,
> + .cle_bypass = xgene_enet_cle_bypass,
> + .shutdown = xgene_enet_shutdown,
See above.
[...]
> diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h
> new file mode 100644
> index 0000000..de43246
> --- /dev/null
> +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.h
[...]
> +#define PHY_ADDR(src) (((src)<<8) & GENMASK(12, 8))
#define PHY_ADDR(src) (((src) << 8) & GENMASK(12, 8))
--
Ueimor
^ permalink raw reply
* Re: [RFC v2 3/6] kthread: warn on kill signal if not OOM
From: Anatol Pomozov @ 2014-10-10 21:54 UTC (permalink / raw)
To: Luis R. Rodriguez
Cc: One Thousand Gnomes, Takashi Iwai, Kay Sievers, Sreekanth Reddy,
Praveen Krishnamoorthy, hare, Nagalakshmi Nandigama, Wu Zhangjin,
Tetsuo Handa, mpt-fusionlinux.pdl, Tim Gardner, Benjamin Poirier,
Santosh Rastapur, Casey Leedom, Hariprasad S, Pierre Fersing,
Arjan van de Ven, Andrew Morton, Abhijit Mahajan,
systemd Mailing List, Lin
In-Reply-To: <CAB=NE6XS9pWmfO7xjTpLFG1OdOJ=UktbOK5pjJCK8hzfXagfXQ@mail.gmail.com>
Hi
On Fri, Sep 12, 2014 at 1:09 PM, Luis R. Rodriguez
<mcgrof@do-not-panic.com> wrote:
> On Thu, Sep 11, 2014 at 10:48 PM, Tom Gundersen <teg@jklm.no> wrote:
>> On Fri, Sep 12, 2014 at 12:26 AM, Luis R. Rodriguez
>> <mcgrof@do-not-panic.com> wrote:
>>> On Thu, Sep 11, 2014 at 2:43 PM, Tom Gundersen <teg@jklm.no> wrote:
>>>> How about simply introducing a new flag to finit_module() to indicate
>>>> that the caller does not care about asynchronicity. We could then pass
>>>> this from udev, but existing scripts calling modprobe/insmod will not
>>>> be affected.
>>>
>>> Do you mean that you *do want asynchronicity*?
>>
>> Precisely, udev would opt-in, but existing scripts etc would not.
>
> Sure that's the other alternative that Tejun was mentioning.
>
>>>> But isn't finit_module() taking a long time a serious problem given
>>>> that it means no other module can be loaded in parallel?
>>>
>>> Indeed but having a desire to make the init() complete fast is
>>> different than the desire to have the combination of both init and
>>> probe fast synchronously.
>>
>> I guess no one is arguing that probe should somehow be required to be
>> fast, but rather:
>>
>>> If userspace wants init to be fast and let
>>> probe be async then userspace has no option but to deal with the fact
>>> that async probe will be async, and it should then use other methods
>>> to match any dependencies if its doing that itself.
>>
>> Correct. And this therefore likely needs to be opt-in behaviour per
>> finit_module() invocation to avoid breaking old assumptions.
>
> Sure.
>
>>> For example
>>> networking should not kick off after a network driver is loaded but
>>> rather one the device creeps up on udev. We should be good with
>>> networking dealing with this correctly today but not sure about other
>>> subsystems. depmod should be able to load the required modules in
>>> order and if bus drivers work right then probe of the remnant devices
>>> should happen asynchronously. The one case I can think of that is a
>>> bit different is modules-load.d things but those *do not rely on the
>>> timeout*, but are loaded prior to a service requirement. Note though
>>> that if those modules had probe and they then run async'd then systemd
>>> service would probably need to consider that the requirements may not
>>> be there until later. If this is not carefully considered that could
>>> introduce regression to users of modules-load.d when async probe is
>>> fully deployed. The same applies to systemd making assumptions of kmod
>>> loading a module and a dependency being complete as probe would have
>>> run it before.
>>
>> Yeah, these all needs to be considered when deciding whether or not to
>> enable async in each specific case.
>
> Yes and come to think of it I'd recommend opting out of async
> functionality for modules-load.d given that it does *not* hooked with
> the timeout and there is a good chances its users likely do want to
> wait for probe to run at this point.
>
> Given this I also am inclined now for the per module request to be
> async or not (default) from userspace. The above would be a good
> example starting use case.
>
>>> I believe one concern here lies in on whether or not userspace
>>> is properly equipped to deal with the requirements on module loading
>>> doing async probing and that possibly failing. Perhaps systemd might
>>> think all userspace is ready for that but are we sure that's the case?
>>
>> There almost certainly are custom things out there relying on the
>> synchronous behaviour, but if we make it opt-in we should not have a
>> problem.
We recently discussed this "timeout module loading" issue in Arch IRC
and here are few more ideas:
1) Why not to make the timeout configurable through config file? There
is already udev.conf you can put config option there. Thus people with
modprobe issues can easily "fix" the problem. And then decrease
default timeout back to 30 seconds. I agree that long module loading
(more than 30 secs) is abnormal and should be investigated by driver
authors.
2) Could you add 'echo w > /proc/sysrq-trigger' to udev code right
before killing the "modprobe" thread? sysrq will print information
about stuck threads (including modprobe itself) this will make
debugging easier. e.g. dmesg here
https://bugs.archlinux.org/task/40454 says nothing where the threads
were stuck.
^ permalink raw reply
* [PATCH v2] fm10k: Add skb->xmit_more support
From: alexander.duyck @ 2014-10-10 21:30 UTC (permalink / raw)
To: e1000-devel, netdev, davem, jeffrey.t.kirsher; +Cc: matthew.vick
From: Alexander Duyck <alexander.h.duyck@redhat.com>
This change adds support for skb->xmit_more based on the changes that were
made to igb to support the feature. The main changes are moving up the
check for maybe_stop_tx so that we can check netif_xmit_stopped to determine
if we must write the tail because we can add no further buffers.
Acked-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
---
v2: Minor fix to patch description for typo.
drivers/net/ethernet/intel/fm10k/fm10k_main.c | 65 +++++++++++++------------
1 file changed, 34 insertions(+), 31 deletions(-)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 6c800a3..8ad7ff4 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -930,6 +930,30 @@ static bool fm10k_tx_desc_push(struct fm10k_ring *tx_ring,
return i == tx_ring->count;
}
+static int __fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
+{
+ netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
+
+ smp_mb();
+
+ /* We need to check again in a case another CPU has just
+ * made room available. */
+ if (likely(fm10k_desc_unused(tx_ring) < size))
+ return -EBUSY;
+
+ /* A reprieve! - use start_queue because it doesn't call schedule */
+ netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index);
+ ++tx_ring->tx_stats.restart_queue;
+ return 0;
+}
+
+static inline int fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
+{
+ if (likely(fm10k_desc_unused(tx_ring) >= size))
+ return 0;
+ return __fm10k_maybe_stop_tx(tx_ring, size);
+}
+
static void fm10k_tx_map(struct fm10k_ring *tx_ring,
struct fm10k_tx_buffer *first)
{
@@ -1023,13 +1047,18 @@ static void fm10k_tx_map(struct fm10k_ring *tx_ring,
tx_ring->next_to_use = i;
+ /* Make sure there is space in the ring for the next send. */
+ fm10k_maybe_stop_tx(tx_ring, DESC_NEEDED);
+
/* notify HW of packet */
- writel(i, tx_ring->tail);
+ if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
+ writel(i, tx_ring->tail);
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
+ /* we need this if more than one processor can write to our tail
+ * at a time, it synchronizes IO on IA64/Altix systems
+ */
+ mmiowb();
+ }
return;
dma_error:
@@ -1049,30 +1078,6 @@ dma_error:
tx_ring->next_to_use = i;
}
-static int __fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
-{
- netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index);
-
- smp_mb();
-
- /* We need to check again in a case another CPU has just
- * made room available. */
- if (likely(fm10k_desc_unused(tx_ring) < size))
- return -EBUSY;
-
- /* A reprieve! - use start_queue because it doesn't call schedule */
- netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index);
- ++tx_ring->tx_stats.restart_queue;
- return 0;
-}
-
-static inline int fm10k_maybe_stop_tx(struct fm10k_ring *tx_ring, u16 size)
-{
- if (likely(fm10k_desc_unused(tx_ring) >= size))
- return 0;
- return __fm10k_maybe_stop_tx(tx_ring, size);
-}
-
netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
struct fm10k_ring *tx_ring)
{
@@ -1117,8 +1122,6 @@ netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
fm10k_tx_map(tx_ring, first);
- fm10k_maybe_stop_tx(tx_ring, DESC_NEEDED);
-
return NETDEV_TX_OK;
out_drop:
^ permalink raw reply related
* Re: kernel crash in bpf_jit on x86_64 when running nmap
From: Alexei Starovoitov @ 2014-10-10 21:17 UTC (permalink / raw)
To: Darrick J. Wong
Cc: David S. Miller, linux-kernel, Daniel Borkmann, H. Peter Anvin,
Thomas Gleixner, Ingo Molnar, Network Development
In-Reply-To: <20141010204403.GA30018@birch.djwong.org>
On Fri, Oct 10, 2014 at 1:44 PM, Darrick J. Wong
<darrick.wong@oracle.com> wrote:
> Hi everyone,
>
> I was running nmap on a x86_64 qemu guest and experienced the following crash:
>
> # nmap -sS -O -vvv 192.168.122.1
> Starting Nmap 6.40 ( http://nmap.org ) at 2014-10-10 13:14 PDT
> Initiating ARP Ping Scan at 13:14
> Scanning 192.168.122.1 [1 port]
> <kaboom>
>
> dmesg output is as follows (I set net.core.bpf_jit_enable=2 the second time):
>
> [ 32.376291] flen=3 proglen=82 pass=0 image=ffffffffc01ac65b
> [ 32.377595] JIT code: 00000000: 55 48 89 e5 48 81 ec 28 02 00 00 48 89 9d d8 fd
> [ 32.379243] JIT code: 00000010: ff ff 4c 89 ad e0 fd ff ff 4c 89 b5 e8 fd ff ff
> [ 32.380984] JIT code: 00000020: 4c 89 bd f0 fd ff ff 31 c0 4d 31 ed 48 89 fb b8
> [ 32.382606] JIT code: 00000030: 00 00 00 00 48 8b 9d d8 fd ff ff 4c 8b ad e0 fd
> [ 32.384280] JIT code: 00000040: ff ff 4c 8b b5 e8 fd ff ff 4c 8b bd f0 fd ff ff
> [ 32.385911] JIT code: 00000050: c9 c3
> [ 32.386841] bpf_jit: proglen=265 != oldproglen=269
thanks for the report. The line above indicates that JIT tried to emit
4 byte longer program than during pre-final pass.
Will look at it asap.
^ permalink raw reply
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