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This patch adds a check for the presence of the LPAE feature during the
CPU initialisation. If not present, it reports an error when
CONFIG_DEBUG_LL is enabled.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This change ensures the platform device name matches nuc900-ac97 platform
driver name.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Since the arch/arm/mach-s3c2410/include/mach/system-reset.h has
been removed by commit f88b8979 ("ARM: restart: remove the now
empty arch_reset()"), so the inclusion of <mach/system-reset.h>
should be removed at the plat-s3c24xx/cpu.c file.
The build error happens like following:
arch/arm/plat-s3c24xx/cpu.c:41: fatal error: mach/system-reset.h: No such file or directory
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Commit 44986ab "ARM: 7240/1: Make ARCH_NR_GPIO a Kconfig variable"
spelled ARCH_NR_GPIOS as ARCH_NR_GPIO, hence making the change
ineffective. This change fixes that.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (21 commits)
m68k/mac: Make CONFIG_HEARTBEAT unavailable on Mac
m68k/serial: Remove references to obsolete serial config options
m68k/net: Remove obsolete IRQ_FLG_* users
m68k: Don't comment out syscalls used by glibc
m68k/atari: Move declaration of atari_SCC_reset_done to header file
m68k/serial: Remove references to obsolete CONFIG_SERIAL167
m68k/hp300: Export hp300_ledstate
m68k: Initconst section fixes
m68k/mac: cleanup macro case
mac_scsi: fix mac_scsi on some powerbooks
m68k/mac: fix powerbook 150 adb_type
m68k/mac: fix baboon irq disable and shutdown
m68k/mac: oss irq fixes
m68k/mac: fix nubus slot irq disable and shutdown
m68k/mac: enable via_alt_mapping on performa 580
m68k/mac: cleanup forward declarations
m68k/mac: cleanup mac_irq_pending
m68k/mac: cleanup mac_clear_irq
m68k/mac: early console
m68k/mvme16x: Add support for EARLY_PRINTK
...
Fix up trivial conflict in arch/m68k/Kconfig.debug due to new
EARLY_PRINTK config option addition clashing with movement of the
BOOTPARAM options.
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git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'for-linus' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (207 commits)
ARM: 7267/1: Remove BUILD_BUG_ON from asm/bug.h
ARM: 7269/1: mach-sa1100: fix sched_clock breakage
ARM: 7198/1: arm/imx6: add restart support for imx6q
ARM: restart: remove the now empty arch_reset()
ARM: restart: remove comments about adding code to arch_reset()
ARM: restart: lpc32xx & u300: remove unnecessary printk
ARM: restart: plat-samsung: remove plat/reset.h and s5p_reset_hook
ARM: restart: w90x900: use new restart hook
ARM: restart: Versatile Express: use new restart hook
ARM: restart: versatile: use new restart hook
ARM: restart: u300: use new restart hook
ARM: restart: tegra: use new restart hook
ARM: restart: spear: use new restart hook
ARM: restart: shark: use new restart hook
ARM: restart: sa1100: use new restart hook
ARM: 7252/1: restart: S5PV210: use new restart hook
ARM: 7251/1: restart: S5PC100: use new restart hook
ARM: 7250/1: restart: S5P64X0: use new restart hook
ARM: 7266/1: restart: S3C64XX: use new restart hook
ARM: 7265/1: restart: S3C24XX: use new restart hook
...
Fix up trivial conflict in arch/arm/mm/init.c due to removal of
memblock_init() clashing with the movement of the sorting of the meminfo
array.
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git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
sound: aaci: Enable module alias autogeneration for AMBA drivers
watchdog: sp805: Enable module alias autogeneration for AMBA drivers
fbdev: amba: Enable module alias autogeneration for AMBA drivers
serial: pl011: Enable module alias autogeneration for AMBA drivers
serial: pl010: Enable module alias autogeneration for AMBA drivers
spi: pl022: Enable module alias autogeneration for AMBA drivers
rtc: pl031: Enable module alias autogeneration for AMBA drivers
rtc: pl030: Enable module alias autogeneration for AMBA drivers
mmc: mmci: Enable module alias autogeneration for AMBA drivers
input: ambakmi: Enable module alias autogeneration for AMBA drivers
gpio: pl061: Enable module alias autogeneration for AMBA drivers
dmaengine: pl330: Enable module alias autogeneration for AMBA drivers
dmaengine: pl08x: Enable module alias autogeneration for AMBA drivers
hwrng: nomadik: Enable module alias autogeneration for AMBA drivers
ARM: amba: Auto-generate AMBA driver module aliases during modpost
ARM: amba: Move definition of struct amba_id to mod_devicetable.h
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
pstore: gracefully handle NULL pstore_info functions
pstore: pass reason to backend write callback
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'misc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
ia64: pcibr: Use kmemdup rather than duplicating its implementation
ia64: sn: Use kmemdup rather than duplicating its implementation
ia64: tioca: Use kmemdup rather than duplicating its implementation
[IA64] Merge overlapping reserved regions at boot
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (56 commits)
m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled
m68k/Kconfig: Separate classic m68k and coldfire early
m68k: add ColdFire with MMU enabled support to the m68k mem init code
m68k: do not use m68k startup or interrupt code for ColdFire CPUs
m68k: add ColdFire FPU support for the V4e ColdFire CPUs
m68k: adjustments to stack frame for ColdFire with MMU enabled
m68k: use non-MMU linker script for ColdFire MMU builds
m68k: ColdFire with MMU enabled uses same clocking code as non-MMU
m68k: add code to setup a ColdFire 54xx platform when MMU enabled
m68k: use non-MMU entry.S code when compiling for ColdFire CPU
m68k: create ColdFire MMU pgalloc code
m68k: compile appropriate mm arch files for ColdFire MMU support
m68k: ColdFire V4e MMU paging init code and miss handler
m68k: use ColdFire MMU read/write bit flags when ioremapping
m68k: modify cache push and clear code for ColdFire with MMU enable
m68k: use tracehook_report_syscall_entry/exit for ColdFire MMU ptrace path
m68k: ColdFire V4e MMU context support code
m68k: MMU enabled ColdFire needs 8k ELF alignment
m68k: set ColdFire MMU page size
m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled
...
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits)
powerpc: fix compile error with 85xx/p1010rdb.c
powerpc: fix compile error with 85xx/p1023_rds.c
powerpc/fsl: add MSI support for the Freescale hypervisor
arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
powerpc/fsl: Add support for Integrated Flash Controller
powerpc/fsl: update compatiable on fsl 16550 uart nodes
powerpc/85xx: fix PCI and localbus properties in p1022ds.dts
powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
powerpc/fsl: Update defconfigs to enable some standard FSL HW features
powerpc: Add TBI PHY node to first MDIO bus
sbc834x: put full compat string in board match check
powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit
offb: Fix setting of the pseudo-palette for >8bpp
offb: Add palette hack for qemu "standard vga" framebuffer
offb: Fix bug in calculating requested vram size
powerpc/boot: Change the WARN to INFO for boot wrapper overlap message
powerpc/44x: Fix build error on currituck platform
powerpc/boot: Change the load address for the wrapper to fit the kernel
powerpc/44x: Enable CRASH_DUMP for 440x
...
Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to
the additional sparse-checking code for cputime_t.
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits)
net: pack skb_shared_info more efficiently
net_sched: red: split red_parms into parms and vars
net_sched: sfq: extend limits
cnic: Improve error recovery on bnx2x devices
cnic: Re-init dev->stats_addr after chip reset
net_sched: Bug in netem reordering
bna: fix sparse warnings/errors
bna: make ethtool_ops and strings const
xgmac: cleanups
net: make ethtool_ops const
vmxnet3" make ethtool ops const
xen-netback: make ops structs const
virtio_net: Pass gfp flags when allocating rx buffers.
ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call
netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call
igb: reset PHY after recovering from PHY power down
igb: add basic runtime PM support
igb: Add support for byte queue limits.
e1000: cleanup CE4100 MDIO registers access
e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: add IRQ context simulation in module mce-inject
x86, mce, therm_throt: Don't report power limit and package level thermal throttle events in mcelog
x86, MCE: Drain mcelog buffer
x86, mce: Add wrappers for registering on the decode chain
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode, AMD: Update copyrights
x86, microcode, AMD: Exit early on success
x86, microcode, AMD: Simplify ucode verification
x86, microcode, AMD: Add a reusable buffer
x86, microcode, AMD: Add a vendor-specific exit function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
random: Use arch_get_random_int instead of cycle counter if avail
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, centaur: Enable cx8 for VIA Eden too
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Use "do { } while(0)" for empty lock_cmos()/unlock_cmos() macros
x86: Use "do { } while(0)" for empty flush_tlb_fix_spurious_fault() macro
x86, CPU: Drop superfluous get_cpu_cap() prototype
arch/x86/mm/pageattr.c: Quiet sparse noise; local functions should be static
arch/x86/kernel/ptrace.c: Quiet sparse noise
x86: Use kmemdup() in copy_thread(), rather than duplicating its implementation
x86: Replace the EVT_TO_HPET_DEV() macro with an inline function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86: Fix atomic64_xxx_cx8() functions
x86: Fix and improve cmpxchg_double{,_local}()
x86_64, asm: Optimise fls(), ffs() and fls64()
x86, bitops: Move fls64.h inside __KERNEL__
x86: Fix and improve percpu_cmpxchg{8,16}b_double()
x86: Report cpb and eff_freq_ro flags correctly
x86/i386: Use less assembly in strlen(), speed things up a bit
x86: Use the same node_distance for 32 and 64-bit
x86: Fix rflags in FAKE_STACK_FRAME
x86: Clean up and extend do_int3()
x86: Call do_notify_resume() with interrupts enabled
x86/div64: Add a micro-optimization shortcut if base is power of two
x86-64: Cleanup some assembly entry points
x86-64: Slightly shorten line system call entry and exit paths
x86-64: Reduce amount of redundant code generated for invalidate_interruptNN
x86-64: Slightly shorten int_ret_from_sys_call
x86, efi: Convert efi_phys_get_time() args to physical addresses
x86: Default to vsyscall=emulate
x86-64: Set siginfo and context on vsyscall emulation faults
x86: consolidate xchg and xadd macros
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Skip cpus with apic-ids >= 255 in !x2apic_mode
x86, x2apic: Allow "nox2apic" to disable x2apic mode setup by BIOS
x86, x2apic: Fallback to xapic when BIOS doesn't setup interrupt-remapping
x86, acpi: Skip acpi x2apic entries if the x2apic feature is not present
x86, apic: Add probe() for apic_flat
x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86'
x86: Convert per-cpu counter icr_read_retry_count into a member of irq_stat
x86: Add per-cpu stat counter for APIC ICR read tries
pci, x86/io-apic: Allow PCI_IOAPIC to be user configurable on x86
x86: Fix the !CONFIG_NUMA build of the new CPU ID fixup code support
x86: Add NumaChip support
x86: Add x86_init platform override to fix up NUMA core numbering
x86: Make flat_init_apic_ldr() available
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, tsc: Skip TSC synchronization checks for tsc=reliable
clocksource: Convert tcb_clksrc to use clocksource_register_hz/khz
clocksource: cris: Convert to clocksource_register_khz
clocksource: xtensa: Convert to clocksource_register_hz/khz
clocksource: um: Convert to clocksource_register_hz/khz
clocksource: parisc: Convert to clocksource_register_hz/khz
clocksource: m86k: Convert to clocksource_register_hz/khz
time: x86: Replace LATCH with PIT_LATCH in i8253 clocksource driver
time: x86: Remove CLOCK_TICK_RATE from acpi_pm clocksource driver
time: x86: Remove CLOCK_TICK_RATE from mach_timer.h
time: x86: Remove CLOCK_TICK_RATE from tsc code
time: Fix spelling mistakes in new comments
time: fix bogus comment in timekeeping_get_ns_raw
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
sched/tracing: Add a new tracepoint for sleeptime
sched: Disable scheduler warnings during oopses
sched: Fix cgroup movement of waking process
sched: Fix cgroup movement of newly created process
sched: Fix cgroup movement of forking process
sched: Remove cfs bandwidth period check in tg_set_cfs_period()
sched: Fix load-balance lock-breaking
sched: Replace all_pinned with a generic flags field
sched: Only queue remote wakeups when crossing cache boundaries
sched: Add missing rcu_dereference() around ->real_parent usage
[S390] fix cputime overflow in uptime_proc_show
[S390] cputime: add sparse checking and cleanup
sched: Mark parent and real_parent as __rcu
sched, nohz: Fix missing RCU read lock
sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer
sched, nohz: Fix the idle cpu check in nohz_idle_balance
sched: Use jump_labels for sched_feat
sched/accounting: Fix parameter passing in task_group_account_field
sched/accounting: Fix user/system tick double accounting
sched/accounting: Re-use scheduler statistics for the root cgroup
...
Fix up conflicts in
- arch/ia64/include/asm/cputime.h, include/asm-generic/cputime.h
usecs_to_cputime64() vs the sparse cleanups
- kernel/sched/fair.c, kernel/time/tick-sched.c
scheduler changes in multiple branches
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (106 commits)
perf kvm: Fix copy & paste error in description
perf script: Kill script_spec__delete
perf top: Fix a memory leak
perf stat: Introduce get_ratio_color() helper
perf session: Remove impossible condition check
perf tools: Fix feature-bits rework fallout, remove unused variable
perf script: Add generic perl handler to process events
perf tools: Use for_each_set_bit() to iterate over feature flags
perf tools: Unify handling of features when writing feature section
perf report: Accept fifos as input file
perf tools: Moving code in some files
perf tools: Fix out-of-bound access to struct perf_session
perf tools: Continue processing header on unknown features
perf tools: Improve macros for struct feature_ops
perf: builtin-record: Document and check that mmap_pages must be a power of two.
perf: builtin-record: Provide advice if mmap'ing fails with EPERM.
perf tools: Fix truncated annotation
perf script: look up thread using tid instead of pid
perf tools: Look up thread names for system wide profiling
perf tools: Fix comm for processes with named threads
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
cpu: Export cpu_up()
rcu: Apply ACCESS_ONCE() to rcu_boost() return value
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
docs: Additional LWN links to RCU API
rcu: Augment rcu_batch_end tracing for idle and callback state
rcu: Add rcutorture tests for srcu_read_lock_raw()
rcu: Make rcutorture test for hotpluggability before offlining CPUs
driver-core/cpu: Expose hotpluggability to the rest of the kernel
rcu: Remove redundant rcu_cpu_stall_suppress declaration
rcu: Adaptive dyntick-idle preparation
rcu: Keep invoking callbacks if CPU otherwise idle
rcu: Irq nesting is always 0 on rcu_enter_idle_common
rcu: Don't check irq nesting from rcu idle entry/exit
rcu: Permit dyntick-idle with callbacks pending
rcu: Document same-context read-side constraints
rcu: Identify dyntick-idle CPUs on first force_quiescent_state() pass
rcu: Remove dynticks false positives and RCU failures
rcu: Reduce latency of rcu_prepare_for_idle()
rcu: Eliminate RCU_FAST_NO_HZ grace-period hang
rcu: Avoid needlessly IPIing CPUs at GP end
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
printk, lockdep: Switch to tracked irq ops
printk, lockdep: Remove superfluous preempt_disable()
printk, lockdep: Disable lock debugging on zap_locks()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
memblock: Reimplement memblock allocation using reverse free area iterator
memblock: Kill early_node_map[]
score: Use HAVE_MEMBLOCK_NODE_MAP
s390: Use HAVE_MEMBLOCK_NODE_MAP
mips: Use HAVE_MEMBLOCK_NODE_MAP
ia64: Use HAVE_MEMBLOCK_NODE_MAP
SuperH: Use HAVE_MEMBLOCK_NODE_MAP
sparc: Use HAVE_MEMBLOCK_NODE_MAP
powerpc: Use HAVE_MEMBLOCK_NODE_MAP
memblock: Implement memblock_add_node()
memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users
memblock: Track total size of regions automatically
powerpc: Cleanup memblock usage
memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove()
memblock: Make memblock functions handle overflowing range @size
memblock: Reimplement __memblock_remove() using memblock_isolate_range()
memblock: Separate out memblock_isolate_range() from memblock_set_node()
memblock: Kill memblock_init()
memblock: Kill sentinel entries at the end of static region arrays
memblock: Add __memblock_dump_all()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep/waitqueues: Add better annotation
lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging
lockdep: Print lock name in lockdep_init_error()
init/main.c: Execute lockdep_init() as early as possible
lockdep, kmemcheck: Annotate ->lock in lockdep_init_map()
lockdep, rtmutex, bug: Show taint flags on error
lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep
lockdep: Always try to set ->class_cache in register_lock_class() lockdep_init_map()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timer: Use debugobjects to catch deletion of uninitialized timers
timer: Setup uninitialized timer with a stub callback
debugobjects: Extend to assert that an object is initialized
debugobjects: Be smarter about static objects
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We're doing some odd things there, which already messes up various users
(see the net/socket.c code that this removes), and it was going to add
yet more crud to the block layer because of the incorrect error code
translation.
ENOIOCTLCMD is not an error return that should be returned to user mode
from the "ioctl()" system call, but it should *not* be translated as
EINVAL ("Invalid argument"). It should be translated as ENOTTY
("Inappropriate ioctl for device").
That EINVAL confusion has apparently so permeated some code that the
block layer actually checks for it, which is sad. We continue to do so
for now, but add a big comment about how wrong that is, and we should
remove it entirely eventually. In the meantime, this tries to keep the
changes localized to just the EINVAL -> ENOTTY fix, and removing code
that makes it harder to do the right thing.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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nr_frags can be 8 bits since 256 is plenty of fragments. This allows it to be
packed with tx_flags.
Also by moving ip6_frag_id and dataref (both 4 bytes) next to each other we can
avoid a hole between ip6_frag_id and frag_list on 64 bit systems.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch splits the red_parms structure into two components.
One holding the RED 'constant' parameters, and one containing the
variables.
This permits a size reduction of GRED qdisc, and is a preliminary step
to add an optional RED unit to SFQ.
SFQRED will have a single red_parms structure shared by all flows, and a
private red_vars per flow.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dave Taht <dave.taht@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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SFQ as implemented in Linux is very limited, with at most 127 flows
and limit of 127 packets. [ So if 127 flows are active, we have one
packet per flow ]
This patch brings to SFQ following features to cope with modern needs.
- Ability to specify a smaller per flow limit of inflight packets.
(default value being at 127 packets)
- Ability to have up to 65408 active flows (instead of 127)
- Ability to have head drops instead of tail drops
(to drop old packets from a flow)
Example of use : No more than 20 packets per flow, max 8000 flows, max
20000 packets in SFQ qdisc, hash table of 65536 slots.
tc qdisc add ... sfq \
flows 8000 \
depth 20 \
headdrop \
limit 20000 \
divisor 65536
Ram usage :
2 bytes per hash table entry (instead of previous 1 byte/entry)
32 bytes per flow on 64bit arches, instead of 384 for QFQ, so much
better cache hit ratio.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dave Taht <dave.taht@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a bnx2x device encounters parity errors, it will not respond to all
SPQ messages. As a result, the shutdown sequence before reset can take
a long time as the ulp drivers (bnx2i/bnx2fc) have to wait for timeout
of all such messages.
To improve this scenario, when bnx2x returns error on the SPQ, we'll send
an immediate response to the ulp drivers to avoid such lengthy timeouts.
Adjust the return code of relevant functions to return error only if
the message cannot be sent on the SPQ so that we'll generate an error
completion to the ulp drivers.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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because bnx2x frees the old and allocates new memory during chip reset.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Not now, but it looks you are correct. q->qdisc is NULL until another
additional qdisc is attached (beside tfifo). See 50612537e9ab2969312.
The following patch should work.
From: Hagen Paul Pfeifer <hagen@jauu.net>
netem: catch NULL pointer by updating the real qdisc statistic
Reported-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes a several sparse warnings.
* the __iomem tag was being used incorrectly (needs to be a prefix)
* several variables should have been static since local to one file
* the firmware was not being forwared declared
and was const one place and not the other
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make local function static, make ethtool_ops const.
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Auditing all usage of ethtool_ops found several drivers that
are not declaring the struct const when it should be.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All tables of function pointers should be const to make hacks
more difficult. Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All tables of function pointers should be const to make hacks
more difficult. Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, the refill path for RX buffers will always allocate the
buffers as GFP_ATOMIC, even if we are in process context. This will
fail to apply memory pressure as the worker thread will not contribute
to the freeing of memory.
Fix this by changing add_recvbuf_small to use the gfp variant allocator,
__netdev_alloc_skb_ip_align().
Signed-off-by: Mike Waychison <mikew@google.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch implements support for ndo_get_fcoe_hbainfo()
call in the ixgbe driver.
This function will be called by the FCoE protocol stack to
obtain device specific information from the underlying
device configured to do FCoE.
Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds a new ndo_get_fcoe_hbainfo() call in
net_device_ops for FCoE protocol stack.
If supported by the underlying device, the FCoE protocol
stack will call this to get device specific information
from the underlying device.
This information will then be utilized by the FCoE protocol
stack to register Fiber Channel HBA attributes with the
Fiber Channel Management Service via Fabric Device
Management Interface (FDMI) as per the T11 FC-GS
specification.
Changes in v2:
- As per comments from David Miller aligning the parameters
of the ndo_get_fcoe_hbainfo()
Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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According to 82576_Datasheet.pdf, PHY setting is lost after PHY power down.
So resetting PHY is needed when recovering from PHY power down to set a default
setting to PHY register.
Owing to this lack, NIC doesn't link up in some rare situation.
Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the runtime power management framework to add basic runtime PM support
to the igb driver. Namely, make the driver suspend the device when the link
is off and set it up for generating a wakeup event after the link has been
detected again. This feature is disabled by default.
Based on e1000e's runtime PM code.
Changes since v1:
Don't suspend the device when shutting down the interface.
Avoid race between runtime suspending and ethtool operations.
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds support for byte queue limits (BQL)
Since this driver collects bytes count in 'bytecount' field, use it also
in igb_tx_map()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A global variable is currently used to hold the virtual address of the
CE4100 MDIO base register address. Store the address in the e1000_hw
structure and update macros accordingly.
Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We are not unmapping ce4100_gbe_mdio_base_virt in exit path in case
we are running on a CE4100 adapter, fix that.
Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As reported by Steven Rostedt, e1000 has a lockdep splat added
during the recent merge window. The issue is that
cancel_delayed_work is called while holding our private mutex.
There is no reason that I can see to hold the mutex during pci
shutdown, it was more just paranoia that I put the mutex_lock
around the call to e1000_down.
In a quick survey lots of drivers handle locking differently when
being called by the pci layer. The assumption here is that we
don't need the mutexes' protection in this function because
the driver could not be unloaded while in the shutdown handler
which is only called at reboot or poweroff.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
drivers/net/wireless/b43legacy/dma.c
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