1. 14 Nov, 2019 4 commits
  2. 13 Nov, 2019 6 commits
  3. 11 Nov, 2019 2 commits
  4. 10 Nov, 2019 13 commits
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 44866956
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "A set of fixes that have trickled in over the last couple of weeks:
      
         - MAINTAINER update for Cavium/Marvell ThunderX2
      
         - stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for
           CAN interfaces
      
         - i.MX fixes for voltage regulator GPIO mappings, fixes voltage
           scaling issues
      
         - More i.MX fixes for various issues on i.MX eval boards: interrupt
           storm due to u-boot leaving pins in new states, fixing power button
           config, a couple of compatible-string corrections.
      
         - Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
      
         - A few documentation tweaks and a fix of a memory leak in the reset
           subsystem"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
        MAINTAINERS: update Cavium ThunderX2 maintainers
        ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
        ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
        ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
        ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
        arm64: dts: zii-ultra: fix ARM regulator GPIO handle
        ARM: sunxi: Fix CPU powerdown on A83T
        ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
        arm64: dts: imx8mn: fix compatible string for sdma
        arm64: dts: imx8mm: fix compatible string for sdma
        reset: fix reset_control_ops kerneldoc comment
        ARM: dts: imx6-logicpd: Re-enable SNVS power key
        soc: imx: gpc: fix initialiser format
        ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
        arm64: dts: ls1028a: fix a compatible issue
        reset: fix reset_control_get_exclusive kerneldoc comment
        reset: fix reset_control_lookup kerneldoc comment
        reset: fix of_reset_control_get_count kerneldoc comment
        reset: fix of_reset_simple_xlate kerneldoc comment
        reset: Fix memory leak in reset_control_array_put()
      44866956
    • Linus Torvalds's avatar
      Merge tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · dd892625
      Linus Torvalds authored
      Pull IIO fixes and staging driver from Greg KH:
       "Here is a mix of a number of IIO driver fixes for 5.4-rc7, and a whole
        new staging driver.
      
        The IIO fixes resolve some reported issues, all are tiny.
      
        The staging driver addition is the vboxsf filesystem, which is the
        VirtualBox guest shared folder code. Hans has been trying to get
        filesystem reviewers to review the code for many months now, and
        Christoph finally said to just merge it in staging now as it is
        stand-alone and the filesystem people can review it easier over time
        that way.
      
        I know it's late for this big of an addition, but it is stand-alone.
      
        The code has been in linux-next for a while, long enough to pick up a
        few tiny fixes for it already so people are looking at it.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: Fix error return code in vboxsf_fill_super()
        staging: vboxsf: fix dereference of pointer dentry before it is null checked
        staging: vboxsf: Remove unused including <linux/version.h>
        staging: Add VirtualBox guest shared folder (vboxsf) support
        iio: adc: stm32-adc: fix stopping dma
        iio: imu: inv_mpu6050: fix no data on MPU6050
        iio: srf04: fix wrong limitation in distance measuring
        iio: imu: adis16480: make sure provided frequency is positive
      dd892625
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 3de2a3e9
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are a number of late-arrival driver fixes for issues reported for
        some char/misc drivers for 5.4-rc7
      
        These all come from the different subsystem/driver maintainers as
        things that they had reports for and wanted to see fixed.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        intel_th: pci: Add Jasper Lake PCH support
        intel_th: pci: Add Comet Lake PCH support
        intel_th: msu: Fix possible memory leak in mode_store()
        intel_th: msu: Fix overflow in shift of an unsigned int
        intel_th: msu: Fix missing allocation failure check on a kstrndup
        intel_th: msu: Fix an uninitialized mutex
        intel_th: gth: Fix the window switching sequence
        soundwire: slave: fix scanf format
        soundwire: intel: fix intel_register_dai PDI offsets and numbers
        interconnect: Add locking in icc_set_tag()
        interconnect: qcom: Fix icc_onecell_data allocation
        soundwire: depend on ACPI || OF
        soundwire: depend on ACPI
        thunderbolt: Drop unnecessary read when writing LC command in Ice Lake
        thunderbolt: Fix lockdep circular locking depedency warning
        thunderbolt: Read DP IN adapter first two dwords in one go
      3de2a3e9
    • Linus Torvalds's avatar
      Merge tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs · a5871fcb
      Linus Torvalds authored
      Pull configfs regression fix from Christoph Hellwig:
       "Fix a regression from this merge window in the configfs symlink
        handling (Honggang Li)"
      
      * tag 'configfs-for-5.4-2' of git://git.infradead.org/users/hch/configfs:
        configfs: calculate the depth of parent item
      a5871fcb
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9805a683
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A small set of fixes for x86:
      
         - Make the tsc=reliable/nowatchdog command line parameter work again.
           It was broken with the introduction of the early TSC clocksource.
      
         - Prevent the evaluation of exception stacks before they are set up.
           This causes a crash in dumpstack because the stack walk termination
           gets screwed up.
      
         - Prevent a NULL pointer dereference in the rescource control file
           system.
      
         - Avoid bogus warnings about APIC id mismatch related to the LDR
           which can happen when the LDR is not in use and therefore not
           initialized. Only evaluate that when the APIC is in logical
           destination mode"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early
        x86/dumpstack/64: Don't evaluate exception stacks before setup
        x86/apic/32: Avoid bogus LDR warnings
        x86/resctrl: Prevent NULL pointer dereference when reading mondata
      9805a683
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 621084cd
      Linus Torvalds authored
      Pull timer fixes from Thomas Gleixner:
       "A small set of fixes for timekeepoing and clocksource drivers:
      
         - VDSO data was updated conditional on the availability of a VDSO
           capable clocksource. This causes the VDSO functions which do not
           depend on a VDSO capable clocksource to operate on stale data.
           Always update unconditionally.
      
         - Prevent a double free in the mediatek driver
      
         - Use the proper helper in the sh_mtu2 driver so it won't attempt to
           initialize non-existing interrupts"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        timekeeping/vsyscall: Update VDSO data unconditionally
        clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name()
        clocksource/drivers/mediatek: Fix error handling
      621084cd
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 81388c2b
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "Two fixes for scheduler regressions:
      
         - Plug a subtle race condition which was introduced with the rework
           of the next task selection functionality. The change of task
           properties became unprotected which can be observed inconsistently
           causing state corruption.
      
         - A trivial compile fix for CONFIG_CGROUPS=n"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched: Fix pick_next_task() vs 'change' pattern race
        sched/core: Fix compilation error when cgroup not selected
      81388c2b
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b584a176
      Linus Torvalds authored
      Pull perf tooling fixes from Thomas Gleixner:
      
       - Fix the time sorting algorithm which was broken due to truncation of
         big numbers
      
       - Fix the python script generator fail caused by a broken tracepoint
         array iterator
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf tools: Fix time sorting
        perf tools: Remove unused trace_find_next_event()
        perf scripting engines: Iterate on tep event arrays directly
      b584a176
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ffba65ea
      Linus Torvalds authored
      Pull irq fixlet from Thomas Gleixner:
       "A trivial fix for a kernel doc regression where an argument change was
        not reflected in the documentation"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irq/irqdomain: Update __irq_domain_alloc_fwnode() function documentation
      ffba65ea
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 20c7e296
      Linus Torvalds authored
      Pull stacktrace fix from Thomas Gleixner:
       "A small fix for a stacktrace regression.
      
        Saving a stacktrace for a foreign task skipped an extra entry which
        makes e.g. the output of /proc/$PID/stack incomplete"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        stacktrace: Don't skip first entry on noncurrent tasks
      20c7e296
    • Linus Torvalds's avatar
      Merge tag '5.4-rc7-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6 · 79a64063
      Linus Torvalds authored
      Pull cifs fix from Steve French:
       "Small fix for an smb3 reconnect bug (also marked for stable)"
      
      * tag '5.4-rc7-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6:
        SMB3: Fix persistent handles reconnect
      79a64063
    • Corentin Labbe's avatar
      lib: Remove select of inexistant GENERIC_IO · 820b7c71
      Corentin Labbe authored
      config option GENERIC_IO was removed but still selected by lib/kconfig
      This patch finish the cleaning.
      
      Fixes: 9de8da47 ("kconfig: kill off GENERIC_IO option")
      Acked-by: default avatarRob Herring <robh@kernel.org>
      Signed-off-by: default avatarCorentin Labbe <clabbe@baylibre.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      820b7c71
    • Linus Torvalds's avatar
      Merge tag 'pinctrl-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · 4763c089
      Linus Torvalds authored
      Pull pin control fixes from Linus Walleij:
      
       - Fix glitch risks in the Intel GPIO
      
       - Fix the Intel Cherryview valid irq mask calculation.
      
       - Allocate the Intel Cherryview irqchip dynamically.
      
       - Fix the valid mask init sequency on the ST STMFX driver.
      
      * tag 'pinctrl-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
        pinctrl: stmfx: fix valid_mask init sequence
        pinctrl: cherryview: Allocate IRQ chip dynamic
        pinctrl: cherryview: Fix irq_valid_mask calculation
        pinctrl: intel: Avoid potential glitches if pin is in GPIO mode
      4763c089
  5. 09 Nov, 2019 15 commits
    • Linus Torvalds's avatar
      Merge tag 'for-5.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 00aff683
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "A few regressions and fixes for stable.
      
        Regressions:
      
         - fix a race leading to metadata space leak after task received a
           signal
      
         - un-deprecate 2 ioctls, marked as deprecated by mistake
      
        Fixes:
      
         - fix limit check for number of devices during chunk allocation
      
         - fix a race due to double evaluation of i_size_read inside max()
           macro, can cause a crash
      
         - remove wrong device id check in tree-checker"
      
      * tag 'for-5.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: un-deprecate ioctls START_SYNC and WAIT_SYNC
        btrfs: save i_size to avoid double evaluation of i_size_read in compress_file_range
        Btrfs: fix race leading to metadata space leak after task received signal
        btrfs: tree-checker: Fix wrong check on max devid
        btrfs: Consider system chunk array size for new SYSTEM chunks
      00aff683
    • Linus Torvalds's avatar
      Merge tag 'linux-watchdog-5.4-rc7' of git://www.linux-watchdog.org/linux-watchdog · 4aba1a7e
      Linus Torvalds authored
      Pull watchdog fixes from Wim Van Sebroeck:
      
       - cpwd: fix build regression
      
       - pm8916_wdt: fix pretimeout registration flow
      
       - meson: Fix the wrong value of left time
      
       - imx_sc_wdt: Pretimeout should follow SCU firmware format
      
       - bd70528: Add MODULE_ALIAS to allow module auto loading
      
      * tag 'linux-watchdog-5.4-rc7' of git://www.linux-watchdog.org/linux-watchdog:
        watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading
        watchdog: imx_sc_wdt: Pretimeout should follow SCU firmware format
        watchdog: meson: Fix the wrong value of left time
        watchdog: pm8916_wdt: fix pretimeout registration flow
        watchdog: cpwd: fix build regression
      4aba1a7e
    • Greg Kroah-Hartman's avatar
      Merge tag 'soundwire-5.5-rc1' of... · a61ead03
      Greg Kroah-Hartman authored
      Merge tag 'soundwire-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
      
      Vinod writes:
      
      soundwire updates for v5.5-rc1
      
      This round we have bunch of core and Intel driver updates spearheaded
      by Pierre
      
      Details
       - Update unique id checks in core and ACPI helpers
       - Improvements to to Intel driver and cadence lib
      
      * tag 'soundwire-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
        soundwire: ignore uniqueID when irrelevant
        soundwire: slave: add helper to extract slave ID
        soundwire: remove bitfield for unique_id, use u8
        soundwire: intel: fix PDI/stream mapping for Bulk
        soundwire: cadence_master: make clock stop exit configurable on init
        soundwire: intel/cadence: add flag for interrupt enable
        soundwire: intel: add helper for initialization
        soundwire: cadence_master: add hw_reset capability in debugfs
        soundwire: intel/cadence: fix startup sequence
        soundwire: intel: use correct header for io calls
        soundwire: cadence_master: improve PDI allocation
        soundwire: intel: don't filter out PDI0/1
        soundwire: cadence/intel: simplify PDI/port mapping
        soundwire: intel: remove playback/capture stream_name
        soundwire: remove DAI_ID_RANGE definitions
        soundwire: intel: remove X86 dependency
        soundwire: intel: add missing headers for cross-compilation
      a61ead03
    • Pierre-Louis Bossart's avatar
      soundwire: ignore uniqueID when irrelevant · 2e8c4ad1
      Pierre-Louis Bossart authored
      The uniqueID is useful when there are two or more devices of the same
      type (identical manufacturer ID, part ID) on the same link.
      
      When there is a single device of a given type on a link, its uniqueID
      is irrelevant. It's not uncommon on actual platforms to see variations
      of the uniqueID, or differences between devID registers and ACPI _ADR
      fields.
      
      This patch suggests a filter on startup to identify 'single' devices
      and tag them accordingly. The uniqueID is then not used for the probe,
      and the device name omits the uniqueID as well.
      Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
      Link: https://lore.kernel.org/r/20191022234808.17432-4-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
      2e8c4ad1
    • Pierre-Louis Bossart's avatar
      soundwire: slave: add helper to extract slave ID · de5b174b
      Pierre-Louis Bossart authored
      Simplify the loop with a helper. The only functionality change is that
      we continue the loop even with an ACPI error.
      
      Follow-up patches will build on this change.
      Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
      Link: https://lore.kernel.org/r/20191022234808.17432-3-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
      de5b174b
    • Pierre-Louis Bossart's avatar
      soundwire: remove bitfield for unique_id, use u8 · 5bd54539
      Pierre-Louis Bossart authored
      There is no good reason why the unique_id needs to be stored as 4
      bits. The code will work without changes with a u8 since all values
      are already filtered while parsing the ACPI tables and Slave devID
      registers.
      
      Use u8 representation. This will allow us to encode a
      "IGNORE_UNIQUE_ID" value to account for firmware/BIOS creativity.
      Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
      Link: https://lore.kernel.org/r/20191022234808.17432-2-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
      5bd54539
    • Pierre-Louis Bossart's avatar
      soundwire: intel: fix PDI/stream mapping for Bulk · c134f914
      Pierre-Louis Bossart authored
      The previous formula is incorrect for PDI0/1, the mapping is not
      linear but has a discontinuity between PDI1 and PDI2.
      
      This change has no effect on PCM PDIs (same mapping).
      Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
      Link: https://lore.kernel.org/r/20191022232948.17156-1-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
      c134f914
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 0058b0a5
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) BPF sample build fixes from Björn Töpel
      
       2) Fix powerpc bpf tail call implementation, from Eric Dumazet.
      
       3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet.
      
       4) Fix crash in ebtables when using dnat target, from Florian Westphal.
      
       5) Fix port disable handling whne removing bcm_sf2 driver, from Florian
          Fainelli.
      
       6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski.
      
       7) Various KCSAN fixes all over the networking, from Eric Dumazet.
      
       8) Memory leaks in mlx5 driver, from Alex Vesker.
      
       9) SMC interface refcounting fix, from Ursula Braun.
      
      10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu.
      
      11) Add a TX lock to synchonize the kTLS TX path properly with crypto
          operations. From Jakub Kicinski.
      
      12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano
          Garzarella.
      
      13) Infinite loop in Intel ice driver, from Colin Ian King.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
        ixgbe: need_wakeup flag might not be set for Tx
        i40e: need_wakeup flag might not be set for Tx
        igb/igc: use ktime accessors for skb->tstamp
        i40e: Fix for ethtool -m issue on X722 NIC
        iavf: initialize ITRN registers with correct values
        ice: fix potential infinite loop because loop counter being too small
        qede: fix NULL pointer deref in __qede_remove()
        net: fix data-race in neigh_event_send()
        vsock/virtio: fix sock refcnt holding during the shutdown
        net: ethernet: octeon_mgmt: Account for second possible VLAN header
        mac80211: fix station inactive_time shortly after boot
        net/fq_impl: Switch to kvmalloc() for memory allocation
        mac80211: fix ieee80211_txq_setup_flows() failure path
        ipv4: Fix table id reference in fib_sync_down_addr
        ipv6: fixes rt6_probe() and fib6_nh->last_probe init
        net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
        net: usb: qmi_wwan: add support for DW5821e with eSIM support
        CDC-NCM: handle incomplete transfer of MTU
        nfc: netlink: fix double device reference drop
        NFC: st21nfca: fix double free
        ...
      0058b0a5
    • Linus Torvalds's avatar
      Merge tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block · 5cb8418c
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - Two NVMe device removal crash fixes, and a compat fixup for for an
         ioctl that was introduced in this release (Anton, Charles, Max - via
         Keith)
      
       - Missing error path mutex unlock for drbd (Dan)
      
       - cgroup writeback fixup on dead memcg (Tejun)
      
       - blkcg online stats print fix (Tejun)
      
      * tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block:
        cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
        block: drbd: remove a stray unlock in __drbd_send_protocol()
        blkcg: make blkcg_print_stat() print stats only for online blkgs
        nvme: change nvme_passthru_cmd64 to explicitly mark rsvd
        nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths
        nvme-rdma: fix a segmentation fault during module unload
      5cb8418c
    • David S. Miller's avatar
      Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue · a2582cdc
      David S. Miller authored
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Fixes 2019-11-08
      
      This series contains fixes to igb, igc, ixgbe, i40e, iavf and ice
      drivers.
      
      Colin Ian King fixes a potentially wrap-around counter in a for-loop.
      
      Nick fixes the default ITR values for the iavf driver to 50 usecs
      interval.
      
      Arkadiusz fixes 'ethtool -m' for X722 devices where the correct value
      cannot be obtained from the firmware, so add X722 to the check to ensure
      the wrong value is not returned.
      
      Jake fixes igb and igc drivers in their implementation of launch time
      support by declaring skb->tstamp value as ktime_t instead of s64.
      
      Magnus fixes ixgbe and i40e where the need_wakeup flag for transmit may
      not be set for AF_XDP sockets that are only used to send packets.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a2582cdc
    • Magnus Karlsson's avatar
      ixgbe: need_wakeup flag might not be set for Tx · 0843aa8f
      Magnus Karlsson authored
      The need_wakeup flag for Tx might not be set for AF_XDP sockets that
      are only used to send packets. This happens if there is at least one
      outstanding packet that has not been completed by the hardware and we
      get that corresponding completion (which will not generate an
      interrupt since interrupts are disabled in the napi poll loop) between
      the time we stopped processing the Tx completions and interrupts are
      enabled again. In this case, the need_wakeup flag will have been
      cleared at the end of the Tx completion processing as we believe we
      will get an interrupt from the outstanding completion at a later point
      in time. But if this completion interrupt occurs before interrupts
      are enable, we lose it and should at that point really have set the
      need_wakeup flag since there are no more outstanding completions that
      can generate an interrupt to continue the processing. When this
      happens, user space will see a Tx queue need_wakeup of 0 and skip
      issuing a syscall, which means will never get into the Tx processing
      again and we have a deadlock.
      
      This patch introduces a quick fix for this issue by just setting the
      need_wakeup flag for Tx to 1 all the time. I am working on a proper
      fix for this that will toggle the flag appropriately, but it is more
      challenging than I anticipated and I am afraid that this patch will
      not be completed before the merge window closes, therefore this easier
      fix for now. This fix has a negative performance impact in the range
      of 0% to 4%. Towards the higher end of the scale if you have driver
      and application on the same core and issue a lot of packets, and
      towards no negative impact if you use two cores, lower transmission
      speeds and/or a workload that also receives packets.
      Signed-off-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      0843aa8f
    • Magnus Karlsson's avatar
      i40e: need_wakeup flag might not be set for Tx · 70563957
      Magnus Karlsson authored
      The need_wakeup flag for Tx might not be set for AF_XDP sockets that
      are only used to send packets. This happens if there is at least one
      outstanding packet that has not been completed by the hardware and we
      get that corresponding completion (which will not generate an
      interrupt since interrupts are disabled in the napi poll loop) between
      the time we stopped processing the Tx completions and interrupts are
      enabled again. In this case, the need_wakeup flag will have been
      cleared at the end of the Tx completion processing as we believe we
      will get an interrupt from the outstanding completion at a later point
      in time. But if this completion interrupt occurs before interrupts
      are enable, we lose it and should at that point really have set the
      need_wakeup flag since there are no more outstanding completions that
      can generate an interrupt to continue the processing. When this
      happens, user space will see a Tx queue need_wakeup of 0 and skip
      issuing a syscall, which means will never get into the Tx processing
      again and we have a deadlock.
      
      This patch introduces a quick fix for this issue by just setting the
      need_wakeup flag for Tx to 1 all the time. I am working on a proper
      fix for this that will toggle the flag appropriately, but it is more
      challenging than I anticipated and I am afraid that this patch will
      not be completed before the merge window closes, therefore this easier
      fix for now. This fix has a negative performance impact in the range
      of 0% to 4%. Towards the higher end of the scale if you have driver
      and application on the same core and issue a lot of packets, and
      towards no negative impact if you use two cores, lower transmission
      speeds and/or a workload that also receives packets.
      Signed-off-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      70563957
    • Jacob Keller's avatar
      igb/igc: use ktime accessors for skb->tstamp · 6acab13b
      Jacob Keller authored
      When implementing launch time support in the igb and igc drivers, the
      skb->tstamp value is assumed to be a s64, but it's declared as a ktime_t
      value.
      
      Although ktime_t is typedef'd to s64 it wasn't always, and the kernel
      provides accessors for ktime_t values.
      
      Use the ktime_to_timespec64 and ktime_set accessors instead of directly
      assuming that the variable is always an s64.
      
      This improves portability if the code is ever moved to another kernel
      version, or if the definition of ktime_t ever changes again in the
      future.
      Signed-off-by: default avatarJacob Keller <jacob.e.keller@intel.com>
      Acked-by: default avatarVinicius Costa Gomes <vinicius.gomes@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      6acab13b
    • Arkadiusz Kubalewski's avatar
      i40e: Fix for ethtool -m issue on X722 NIC · 4c9da6f2
      Arkadiusz Kubalewski authored
      This patch contains fix for a problem with command:
      'ethtool -m <dev>'
      which breaks functionality of:
      'ethtool <dev>'
      when called on X722 NIC
      
      Disallowed update of link phy_types on X722 NIC
      Currently correct value cannot be obtained from FW
      Previously wrong value returned by FW was used and was
      a root cause for incorrect output of 'ethtool <dev>' command
      Signed-off-by: default avatarArkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      4c9da6f2
    • Nicholas Nunley's avatar
      iavf: initialize ITRN registers with correct values · 4eda4e00
      Nicholas Nunley authored
      Since commit 92418fb1 ("i40e/i40evf: Use usec value instead of reg
      value for ITR defines") the driver tracks the interrupt throttling
      intervals in single usec units, although the actual ITRN registers are
      programmed in 2 usec units. Most register programming flows in the driver
      correctly handle the conversion, although it is currently not applied when
      the registers are initialized to their default values. Most of the time
      this doesn't present a problem since the default values are usually
      immediately overwritten through the standard adaptive throttling mechanism,
      or updated manually by the user, but if adaptive throttling is disabled and
      the interval values are left alone then the incorrect value will persist.
      
      Since the intended default interval of 50 usecs (vs. 100 usecs as
      programmed) performs better for most traffic workloads, this can lead to
      performance regressions.
      
      This patch adds the correct conversion when writing the initial values to
      the ITRN registers.
      Signed-off-by: default avatarNicholas Nunley <nicholas.d.nunley@intel.com>
      Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
      Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
      4eda4e00