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2017-11-13Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds3-55/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smp/hotplug updates from Thomas Gleixner: "No functional changes, just removal of obsolete and outdated defines, macros and documentation" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Get rid of CPU hotplug notifier leftovers cpu/hotplug: Remove obsolete notifier macros
2017-11-14net: dsa: Fix dependencies on bridgeAndrew Lunn1-0/+1
DSA now uses one of the symbols exported by the bridge, br_vlan_enabled(). This has a stub, if the bridge is not enabled. However, if the bridge is enabled, we cannot have DSA built in and the bridge as a module, otherwise we get undefined symbols at link time: net/dsa/port.o: In function `dsa_port_vlan_add': net/dsa/port.c:255: undefined reference to `br_vlan_enabled' net/dsa/port.o: In function `dsa_port_vlan_del': net/dsa/port.c:270: undefined reference to `br_vlan_enabled' Reported-by: kbuild test robot <[email protected]> Signed-off-by: Andrew Lunn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-11-13Merge branch 'timers-core-for-linus' of ↵Linus Torvalds253-1864/+1810
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ...
2017-11-13Merge branch 'irq-core-for-linus' of ↵Linus Torvalds57-408/+2490
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq core updates from Thomas Gleixner: "A rather large update for the interrupt core code and the irq chip drivers: - Add a new bitmap matrix allocator and supporting changes, which is used to replace the x86 vector allocator which comes with separate pull request. This allows to replace the convoluted nested loop allocation function in x86 with a facility which supports the recently added property of managed interrupts proper and allows to switch to a best effort vector reservation scheme, which addresses problems with vector exhaustion. - A large update to the ARM GIC-V3-ITS driver adding support for range selectors. - New interrupt controllers: - Meson and Meson8 GPIO - BCM7271 L2 - Socionext EXIU If you expected that this will stop at some point, I have to disappoint you. There are new ones posted already. Sigh! - STM32 interrupt controller support for new platforms. - A pile of fixes, cleanups and updates to the MIPS GIC driver - The usual small fixes, cleanups and updates all over the place. Most visible one is to move the irq chip drivers Kconfig switches into a separate Kconfig menu" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) genirq: Fix type of shifting literal 1 in __setup_irq() irqdomain: Drop pointless NULL check in virq_debug_show_one genirq/proc: Return proper error code when irq_set_affinity() fails irq/work: Use llist_for_each_entry_safe irqchip: mips-gic: Print warning if inherited GIC base is used irqchip/mips-gic: Add pr_fmt and reword pr_* messages irqchip/stm32: Move the wakeup on interrupt mask irqchip/stm32: Fix initial values irqchip/stm32: Add stm32h7 support dt-bindings/interrupt-controllers: Add compatible string for stm32h7 irqchip/stm32: Add multi-bank management irqchip/stm32: Select GENERIC_IRQ_CHIP irqchip/exiu: Add support for Socionext Synquacer EXIU controller dt-bindings: Add description of Socionext EXIU interrupt controller irqchip/gic-v3-its: Fix VPE activate callback return value irqchip: mips-gic: Make IPI bitmaps static irqchip: mips-gic: Share register writes in gic_set_type() irqchip: mips-gic: Remove gic_vpes variable irqchip: mips-gic: Use num_possible_cpus() to reserve IPIs irqchip: mips-gic: Configure EIC when CPUs come online ...
2017-11-13Merge branch 'next' into for-linusDmitry Torokhov28314-569856/+1438799
Prepare input updates for 4.15 merge window.
2017-11-13Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds21-108/+155
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle were: - a refactoring of the early virt init code by merging 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init', which allows simplifications and also the addition of a new ->guest_late_init() callback. (Juergen Gross) - timer_setup() conversion of the UV code (Kees Cook)" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/virt/xen: Use guest_late_init to detect Xen PVH guest x86/virt, x86/platform: Add ->guest_late_init() callback to hypervisor_x86 structure x86/virt, x86/acpi: Add test for ACPI_FADT_NO_VGA x86/virt: Add enum for hypervisors to replace x86_hyper x86/virt, x86/platform: Merge 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init' x86/platform/UV: Convert timers to use timer_setup()
2017-11-13Merge branch 'x86-debug-for-linus' of ↵Linus Torvalds1-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 debug update from Ingo Molnar: "A single change enhancing stack traces by hiding wrapper function entries" * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/stacktrace: Avoid recording save_stack_trace() wrappers
2017-11-13Merge branch 'x86-cleanups-for-linus' of ↵Linus Torvalds4-8/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Ingo Molnar: "Two changes: Propagate const/__initconst, and use ARRAY_SIZE() some more" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/events/amd/iommu: Make iommu_pmu const and __initconst x86: Use ARRAY_SIZE
2017-11-13Merge branch 'x86-boot-for-linus' of ↵Linus Torvalds7-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot updates from Ingo Molnar: "Three smaller changes: - clang fix - boot message beautification - unnecessary header inclusion removal" * 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Disable Clang warnings about GNU extensions x86/boot: Remove unnecessary #include <generated/utsrelease.h> x86/boot: Spell out "boot CPU" for BP
2017-11-13dt-bindings: usb: add #phy-cells to usb-nop-xceivRob Herring1-0/+2
Consumers of usb-nop-xceiv use the phy binding, but #phy-cells is missing from the binding. This is probably because this binding predates the common phy binding. So add #phy-cells as a required property. This should not break any users as missing should be treated as 0 cells. Signed-off-by: Rob Herring <[email protected]>
2017-11-13Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds110-1145/+4067
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Ingo Molnar: "Note that in this cycle most of the x86 topics interacted at a level that caused them to be merged into tip:x86/asm - but this should be a temporary phenomenon, hopefully we'll back to the usual patterns in the next merge window. The main changes in this cycle were: Hardware enablement: - Add support for the Intel UMIP (User Mode Instruction Prevention) CPU feature. This is a security feature that disables certain instructions such as SGDT, SLDT, SIDT, SMSW and STR. (Ricardo Neri) [ Note that this is disabled by default for now, there are some smaller enhancements in the pipeline that I'll follow up with in the next 1-2 days, which allows this to be enabled by default.] - Add support for the AMD SEV (Secure Encrypted Virtualization) CPU feature, on top of SME (Secure Memory Encryption) support that was added in v4.14. (Tom Lendacky, Brijesh Singh) - Enable new SSE/AVX/AVX512 CPU features: AVX512_VBMI2, GFNI, VAES, VPCLMULQDQ, AVX512_VNNI, AVX512_BITALG. (Gayatri Kammela) Other changes: - A big series of entry code simplifications and enhancements (Andy Lutomirski) - Make the ORC unwinder default on x86 and various objtool enhancements. (Josh Poimboeuf) - 5-level paging enhancements (Kirill A. Shutemov) - Micro-optimize the entry code a bit (Borislav Petkov) - Improve the handling of interdependent CPU features in the early FPU init code (Andi Kleen) - Build system enhancements (Changbin Du, Masahiro Yamada) - ... plus misc enhancements, fixes and cleanups" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (118 commits) x86/build: Make the boot image generation less verbose selftests/x86: Add tests for the STR and SLDT instructions selftests/x86: Add tests for User-Mode Instruction Prevention x86/traps: Fix up general protection faults caused by UMIP x86/umip: Enable User-Mode Instruction Prevention at runtime x86/umip: Force a page fault when unable to copy emulated result to user x86/umip: Add emulation code for UMIP instructions x86/cpufeature: Add User-Mode Instruction Prevention definitions x86/insn-eval: Add support to resolve 16-bit address encodings x86/insn-eval: Handle 32-bit address encodings in virtual-8086 mode x86/insn-eval: Add wrapper function for 32 and 64-bit addresses x86/insn-eval: Add support to resolve 32-bit address encodings x86/insn-eval: Compute linear address in several utility functions resource: Fix resource_size.cocci warnings X86/KVM: Clear encryption attribute when SEV is active X86/KVM: Decrypt shared per-cpu variables when SEV is active percpu: Introduce DEFINE_PER_CPU_DECRYPTED x86: Add support for changing memory encryption attribute in early boot x86/io: Unroll string I/O when SEV is active x86/boot: Add early boot support when running with SEV active ...
2017-11-13RDMA/core: Rename kernel modify_cq to better describe its usageLeon Romanovsky4-7/+8
Current ib_modify_cq() is used to set CQ moderation parameters. This patch renames ib_modify_cq() to be rdma_set_cq_moderation(), because the kernel version of RDMA API doesn't need to follow already exposed to user's API pattern (create_XXX/modify_XXX/query_XXX/destroy_XXX) and better to have more accurate name which describes the actual usage. Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx5: Add CQ moderation capability to query_deviceYonatan Cohen1-0/+7
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx4: Add CQ moderation capability to query_deviceYonatan Cohen1-0/+3
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/uverbs: Add CQ moderation capability to query_deviceYonatan Cohen3-0/+22
The query_device function can now obtain the maximum values for cq_max_count and cq_period, needed for CQ moderation. cq_max_count is a 16 bits number that determines the number of CQEs to accumulate before generating an event. cq_period is a 16 bits number that determines the timeout in micro seconds from the last event generated, upon which a new event will be generated even if cq_max_count was not reached. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx5: Exposing modify CQ callback to uverbs layerYonatan Cohen3-1/+8
Exposed mlx5_ib_modify_cq to be called from ib device verb list. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx4: Exposing modify CQ callback to uverbs layerYonatan Cohen3-0/+7
Exposed mlx4_ib_modify_cq to be called from ib device verb list. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/uverbs: Allow CQ moderation with modify CQYonatan Cohen5-1/+62
Uverbs support in modify_cq for CQ moderation only. Gives ability to change cq_max_count and cq_period. CQ moderation enhance performance by moderating the number of CQEs needed to create an event instead of application having to suffer from event per-CQE. To achieve CQ moderation the application needs to set cq_max_count and cq_period. cq_max_count - defines the number of CQEs needed to create an event. cq_period - defines the timeout (micro seconds) between last event and a new one that will occur even if cq_max_count was not satisfied Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: atomically flush the qpSteve Wise1-8/+11
__flush_qp() has a race condition where during the flush operation, the qp lock is released allowing another thread to possibly post a WR, which corrupts the queue state, possibly causing crashes. The lock was released to preserve the cq/qp locking hierarchy of cq first, then qp. However releasing the qp lock is not necessary; both RQ and SQ CQ locks can be acquired first, followed by the qp lock, and then the RQ and SQ flushing can be done w/o unlocking. Signed-off-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: only call the cq comp_handler when the cq is armedSteve Wise2-11/+17
The ULPs completion handler should only be called if the CQ is armed for notification. Signed-off-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: Fix possible circular dependency locking warningBharat Potnuri3-25/+39
Locking sequence of iw_cxgb4 and RoCE drivers in ib_register_device() is slightly different and this leads to possible circular dependency locking warning when both the devices are brought up. Here is the locking sequence upto ib_register_device(): iw_cxgb4: rtnl_mutex(net stack) --> uld_mutex --> device_mutex RoCE drivers: device_mutex --> rtnl_mutex Here is the possibility of cross locking: CPU #0 (iw_cxgb4) CPU #1 (RoCE drivers) -> on interface up cxgb4_up() executed with rtnl_mutex held -> hold uld_mutex and try registering ib device -> In ib_register_device() hold device_mutex -> hold device mutex in ib_register_device -> try acquiring rtnl_mutex in ib_enum_roce_netdev() Current patch schedules the ib_register_device() functionality of iw_cxgb4 to a workqueue to prevent the possible cross-locking. Also rename the labels in c4iw_reister_device(). Signed-off-by: Potnuri Bharat Teja <[email protected]> Reviewed-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13Merge branch 'sched-core-for-linus' of ↵Linus Torvalds31-774/+1270
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: "The main updates in this cycle were: - Group balancing enhancements and cleanups (Brendan Jackman) - Move CPU isolation related functionality into its separate kernel/sched/isolation.c file, with related 'housekeeping_*()' namespace and nomenclature et al. (Frederic Weisbecker) - Improve the interactive/cpu-intense fairness calculation (Josef Bacik) - Improve the PELT code and related cleanups (Peter Zijlstra) - Improve the logic of pick_next_task_fair() (Uladzislau Rezki) - Improve the RT IPI based balancing logic (Steven Rostedt) - Various micro-optimizations: - better !CONFIG_SCHED_DEBUG optimizations (Patrick Bellasi) - better idle loop (Cheng Jian) - ... plus misc fixes, cleanups and updates" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) sched/core: Optimize sched_feat() for !CONFIG_SCHED_DEBUG builds sched/sysctl: Fix attributes of some extern declarations sched/isolation: Document isolcpus= boot parameter flags, mark it deprecated sched/isolation: Add basic isolcpus flags sched/isolation: Move isolcpus= handling to the housekeeping code sched/isolation: Handle the nohz_full= parameter sched/isolation: Introduce housekeeping flags sched/isolation: Split out new CONFIG_CPU_ISOLATION=y config from CONFIG_NO_HZ_FULL sched/isolation: Rename is_housekeeping_cpu() to housekeeping_cpu() sched/isolation: Use its own static key sched/isolation: Make the housekeeping cpumask private sched/isolation: Provide a dynamic off-case to housekeeping_any_cpu() sched/isolation, watchdog: Use housekeeping_cpumask() instead of ad-hoc version sched/isolation: Move housekeeping related code to its own file sched/idle: Micro-optimize the idle loop sched/isolcpus: Fix "isolcpus=" boot parameter handling when !CONFIG_CPUMASK_OFFSTACK x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter sched/rt: Simplify the IPI based RT balancing logic block/ioprio: Use a helper to check for RT prio sched/rt: Add a helper to test for a RT task ...
2017-11-13Merge branch 'ras-core-for-linus' of ↵Linus Torvalds2-13/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Ingo Molnar: "Two minor updates to AMD SMCA support, plus a timer_setup() conversion" * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/MCE/AMD: Fix mce_severity_amd_smca() signature x86/MCE/AMD: Always give panic severity for UC errors in kernel context x86/mce: Convert timers to use timer_setup()
2017-11-13RDMA/bnxt_re: report vlan_id and sl in qp1 recv completionDevesh Sharma2-1/+35
In a real RoCE v2 network it is possible to have two Sections of network have same IP hence same gid. However those may have different vlans. During connection resolution it is important to report the actual vlan on which the MAD packet was received instead of relying on other means to resolve vlan-id. ib_find_gid_index should not be used to resolve the vlan-id using sgid of the local system where the packet was received. Our device has the capability to report the actual VLAN-ID in the GSI qp completions. Since we have the capability our driver should move away from resolving the vlan-id with the help of SGID at the destination port. Signed-off-by: Devesh Sharma <[email protected]> Reported-by: Parav Pandit <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/core: Only maintain real QPs in the security listsDaniel Jurgens1-23/+28
When modify QP is called on a shared QP update the security context for the real QP. When security is subsequently enforced the shared QP handles will be checked as well. Without this change shared QP handles get added to the port/pkey lists, which is a bug, because not all shared QP handles will be checked for access. Also the shared QP security context wouldn't get removed from the port/pkey lists causing access to free memory and list corruption when they are destroyed. Cc: [email protected] Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs") Signed-off-by: Daniel Jurgens <[email protected]> Reviewed-by: Parav Pandit <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/ocrdma_hw: remove unnecessary code in ocrdma_mbx_dealloc_lkeyGustavo A. R. Silva1-4/+2
Check on return value and goto label mbx_err are unnecessary. Addresses-Coverity-ID: 1268780 Signed-off-by: Gustavo A. R. Silva <[email protected]> Reviewed-by: Yuval Shaia <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/core: Make function rdma_copy_addr return voidYuval Shaia3-21/+19
Function returns zero - make it void. While there make struct net_device const. Signed-off-by: Yuval Shaia <[email protected]> Reviewed-by: Parav Pandit <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/vmw_pvrdma: Add shared receive queue supportBryan Tan9-14/+523
Add the required functions needed to support SRQs. Currently, kernel clients are not supported. SRQs will only be available in userspace. Reviewed-by: Adit Ranadive <[email protected]> Reviewed-by: Aditya Sarwade <[email protected]> Reviewed-by: Jorgen Hansen <[email protected]> Reviewed-by: Nitish Bhat <[email protected]> Signed-off-by: Bryan Tan <[email protected]> Reviewed-by: Yuval Shaia <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/core: avoid uninitialized variable warning in create_udataArnd Bergmann1-11/+10
As Dan pointed out, the rework I did makes it harder for smatch and other static checkers to figure out what is going on with the uninitialized pointers. By open-coding the call in create_udata(), we make it more readable for both humans and tools. Reported-by: Dan Carpenter <[email protected]> Fixes: 12f727721eee ("IB/uverbs: clean up INIT_UDATA_BUF_OR_NULL usage") Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_TimeBjorn Helgaas1-1/+1
Every Port that supports the L1.2 substate advertises its Port Common_Mode_Restore_Time, i.e., the time the Port requires to re-establish common mode when exiting L1.2 (see PCIe r3.1, sec 7.33.2). Per sec 5.5.3.3.1, when exiting L1.2, the Downstream Port (the device at the upstream end of the link) must send TS1 training sequences for at least T(COMMONMODE) after it detects electrical idle exit on the Link. We want this to be long enough for both ends of the Link, so we should set it to the maximum of the Port Common_Mode_Restore_Time for the upstream and downstream components on the Link. Previously we only looked at the Port Common_Mode_Restore_Time of the upstream device, so if the downstream device required more time, we didn't program the upstream device's T(COMMONMODE) correctly. Fixes: f1f0366dd6be ("PCI/ASPM: Calculate and save the L1.2 timing parameters") Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Vidya Sagar <[email protected]> Acked-by: Rajat Jain <[email protected]> CC: [email protected] # v4.11+
2017-11-13Merge branch 'perf-core-for-linus' of ↵Linus Torvalds182-2521/+8370
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The main changes in this cycle were: Kernel: - kprobes updates: use better W^X patterns for code modifications, improve optprobes, remove jprobes. (Masami Hiramatsu, Kees Cook) - core fixes: event timekeeping (enabled/running times statistics) fixes, perf_event_read() locking fixes and cleanups, etc. (Peter Zijlstra) - Extend x86 Intel free-running PEBS support and support x86 user-register sampling in perf record and perf script. (Andi Kleen) Tooling: - Completely rework the way inline frames are handled. Instead of querying for the inline nodes on-demand in the individual tools, we now create proper callchain nodes for inlined frames. (Milian Wolff) - 'perf trace' updates (Arnaldo Carvalho de Melo) - Implement a way to print formatted output to per-event files in 'perf script' to facilitate generate flamegraphs, elliminating the need to write scripts to do that separation (yuzhoujian, Arnaldo Carvalho de Melo) - Update vendor events JSON metrics for Intel's Broadwell, Broadwell Server, Haswell, Haswell Server, IvyBridge, IvyTown, JakeTown, Sandy Bridge, Skylake, SkyLake Server - and Goldmont Plus V1 (Andi Kleen, Kan Liang) - Multithread the synthesizing of PERF_RECORD_ events for pre-existing threads in 'perf top', speeding up that phase, greatly improving the user experience in systems such as Intel's Knights Mill (Kan Liang) - Introduce the concept of weak groups in 'perf stat': try to set up a group, but if it's not schedulable fallback to not using a group. That gives us the best of both worlds: groups if they work, but still a usable fallback if they don't. E.g: (Andi Kleen) - perf sched timehist enhancements (David Ahern) - ... various other enhancements, updates, cleanups and fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (139 commits) kprobes: Don't spam the build log with deprecation warnings arm/kprobes: Remove jprobe test case arm/kprobes: Fix kretprobe test to check correct counter perf srcline: Show correct function name for srcline of callchains perf srcline: Fix memory leak in addr2inlines() perf trace beauty kcmp: Beautify arguments perf trace beauty: Implement pid_fd beautifier tools include uapi: Grab a copy of linux/kcmp.h perf callchain: Fix double mapping al->addr for children without self period perf stat: Make --per-thread update shadow stats to show metrics perf stat: Move the shadow stats scale computation in perf_stat__update_shadow_stats perf tools: Add perf_data_file__write function perf tools: Add struct perf_data_file perf tools: Rename struct perf_data_file to perf_data perf script: Print information about per-event-dump files perf trace beauty prctl: Generate 'option' string table from kernel headers tools include uapi: Grab a copy of linux/prctl.h perf script: Allow creating per-event dump files perf evsel: Restore evsel->priv as a tool private area perf script: Use event_format__fprintf() ...
2017-11-13Merge branches 'vfio/fixes' and 'vfio/platform' into vfio-next-20171113.0Alex Williamson3-0/+123
2017-11-13RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbsSelvin Xavier1-5/+10
Synchronize poll_cq and req_notify_cq verbs using cq_lock, instead of the lower level qplib->hwq.lock. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QPSelvin Xavier3-0/+9
Destroy_qp shall wait for any outstanding CQ notification to be flushed out before proceeding with QP destroy. Flushing the WQ before destroying the QP. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Set QP state in case of response completion errorsSelvin Xavier1-0/+3
Moves the driver QP state to error in case of response completion errors. Handles the scenarios which doesn't generate a terminal CQE. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Add memory barriers when processing CQ/EQ entriesSomnath Kotur2-0/+25
The code determines if the next ring entry is valid before proceeding further to read the rest of the entry. The CPU can re-order and read the rest of the entry first, possibly reading a stale entry, if DMA of a new entry happens right after reading it. Signed-off-by: Somnath Kotur <[email protected]> Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Handle initial value of 0 for CCTI settingDennis Dalessandro1-1/+5
When the driver is loaded it sets the default CCTI value to be 0. When the FM starts and CCA is disabled the driver sets the max value to 65535 due the driver subtracting 1 from 0 and the fact that the CCTI value is a u16. Special case the subtraction to find the index for a 0 value. Reviewed-by: Mike Marciniszyn <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Mask upper 16Bits of Extended LID prior to rvt_cq_entryDon Hiatt4-6/+6
Pass only the lower 16Bits of an Extended LIDs to rvt_cq_entry to avoid triggering a WARN_ON_ONCE during conversion there. These upper 16Bits are okay to drop as they are obtained elsewhere. Fixes: 62ede7779904 ("Add OPA extended LID support") Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Don Hiatt <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/core: Convert OPA AH to IB for Extended LIDs onlyDon Hiatt1-2/+1
When deciding to convert an OPA AH to IB we were incorrectly including the IB multicast range. At this layer, all Extended LIDs will be larger than IB_LID_PERMISSIVE. Change comparison accordingly. Fixes: d541e45500bd ("IB/core: Convert ah_attr from OPA to IB when copying to user") Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Don Hiatt <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Send 'reboot' as planned down remote reasonJan Sokolowski1-3/+3
On host shutdown, driver sends 'SMA_Disabled' as a reason for link down. This is incorrect. Send 'reboot' as a linkdown reason. Signed-off-by: Jan Sokolowski <[email protected]> Reviewed-by: Jakub Byczkowski <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Prohibit invalid Init to Armed state transitionGrzegorz Morys1-14/+18
It is invalid to change Link state from Init to Armed if IsSmConfigurationStarted bit is not set in Attribute modifier for Set subnet management method in case of PortInfo and PortStateInfo attribute. Set response MAD status field bits accordingly to react correctly in such situations and avoid changing Link state. Reviewed-by: Ira Weiny <[email protected]> Reviewed-by: Michael J. Ruhl <[email protected]> Signed-off-by: Grzegorz Morys <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Do not allocate PIO send contexts for VNICNiranjana Vishwanathapura6-68/+10
OPA VNIC does not use PIO contexts and instead only uses SDMA engines. Do not allocate PIO contexts for VNIC ports. Reviewed-by: Michael J. Ruhl <[email protected]> Signed-off-by: Niranjana Vishwanathapura <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Remove unnecessary if checkJan Sokolowski1-15/+15
A for loop condition of data_iovs in user_sdma_free_request is unnecessarily repeated before the loop as an if check. Remove the if enveloping the loop. Reviewed-by: Jakub Byczkowski <[email protected]> Signed-off-by: Jan Sokolowski <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Fix a wrapping test to insure the correct timeoutMike Marciniszyn3-5/+5
The "2 * UINT_MAX" statement: if ((u64)(ts - cce->timestamp) > 2 * UINT_MAX) { is equivalent to: if ((u64)(ts - cce->timestamp) > UINT_MAX - 1) { This results in a premature timeout of the cong log entry. Fix by using unsigned 64 bit integers, removing casts, and using an algebraic equivalent test to avoid the "2 * UINT_MAX" issue. Also make use of kernel API to get nanoseconds instead of open coding. Reported-by: Dan Carpenter <[email protected]> Reviewed-by: Dennis Dalessandro <[email protected]> Signed-off-by: Mike Marciniszyn <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Remove wrapper function in mmu_rbKamenee Arumugam1-17/+7
Wrapper functions were used to call the same function mmu_notifier_mem_invalidate for 2 callbacks in mmu_notifier. The commit 7def96f0a973 ("IB/hfi1: update to new mmu_notifier semantic") removed the invalidate_page callback. Therefore, the wrapper function is no longer needed. Reviewed-by: Michael J. Ruhl <[email protected]> Reviewed-by: Alex Estrin <[email protected]> Signed-off-by: Kamenee Arumugam <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Reduce 8051 command timeoutJakub Byczkowski1-1/+1
Timeout of 20 seconds is too long for active wait performed for 8051 command completion. It was required for scenarios when transition to polling was requested before offline.quiet state was reached. Currently wait for offline.quiet is properly implemented and timeout can be reduced to 1 second. Reviewed-by: Dean Luick <[email protected]> Reviewed-by: Duane McCrory <[email protected]> Signed-off-by: Jakub Byczkowski <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Allow MgmtAllowed on B2B setupsJan Sokolowski3-38/+47
HFI's are hard-wired to send Device Info frames with MgmtAllowed bit set to 0. This means in B2B setups, MgmtAllowed would never be allowed, which prevents remote opa management tools from working properly. Assume MgmtAllowed if a neighbor is also an HFI. Fixes: 98b9ee2002a8 ("IB/hfi1: Cache neighbor secure data after link up") Reviewed-by: Sebastian Sanchez <[email protected]> Reviewed-by: Michael J. Ruhl <[email protected]> Signed-off-by: Jan Sokolowski <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13Merge branch 'locking-core-for-linus' of ↵Linus Torvalds307-1672/+1252
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core locking updates from Ingo Molnar: "The main changes in this cycle are: - Another attempt at enabling cross-release lockdep dependency tracking (automatically part of CONFIG_PROVE_LOCKING=y), this time with better performance and fewer false positives. (Byungchul Park) - Introduce lockdep_assert_irqs_enabled()/disabled() and convert open-coded equivalents to lockdep variants. (Frederic Weisbecker) - Add down_read_killable() and use it in the VFS's iterate_dir() method. (Kirill Tkhai) - Convert remaining uses of ACCESS_ONCE() to READ_ONCE()/WRITE_ONCE(). Most of the conversion was Coccinelle driven. (Mark Rutland, Paul E. McKenney) - Get rid of lockless_dereference(), by strengthening Alpha atomics, strengthening READ_ONCE() with smp_read_barrier_depends() and thus being able to convert users of lockless_dereference() to READ_ONCE(). (Will Deacon) - Various micro-optimizations: - better PV qspinlocks (Waiman Long), - better x86 barriers (Michael S. Tsirkin) - better x86 refcounts (Kees Cook) - ... plus other fixes and enhancements. (Borislav Petkov, Juergen Gross, Miguel Bernal Marin)" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) locking/x86: Use LOCK ADD for smp_mb() instead of MFENCE rcu: Use lockdep to assert IRQs are disabled/enabled netpoll: Use lockdep to assert IRQs are disabled/enabled timers/posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled sched/clock, sched/cputime: Use lockdep to assert IRQs are disabled/enabled irq_work: Use lockdep to assert IRQs are disabled/enabled irq/timings: Use lockdep to assert IRQs are disabled/enabled perf/core: Use lockdep to assert IRQs are disabled/enabled x86: Use lockdep to assert IRQs are disabled/enabled smp/core: Use lockdep to assert IRQs are disabled/enabled timers/hrtimer: Use lockdep to assert IRQs are disabled/enabled timers/nohz: Use lockdep to assert IRQs are disabled/enabled workqueue: Use lockdep to assert IRQs are disabled/enabled irq/softirqs: Use lockdep to assert IRQs are disabled/enabled locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled() locking/pvqspinlock: Implement hybrid PV queued/unfair locks locking/rwlocks: Fix comments x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized block, locking/lockdep: Assign a lock_class per gendisk used for wait_for_completion() workqueue: Remove now redundant lock acquisitions wrt. workqueue flushes ...
2017-11-13IB/srpt: Ensure that modifying the use_srq configfs attribute worksBart Van Assche1-0/+12
The use_srq configfs attribute is created after it is read. Hence modify srpt_tpg_attrib_use_srq_store() such that this function switches dynamically between non-SRQ and SRQ mode. Reported-by: Mike Marciniszyn <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/srpt: Wait until channel release has finished during module unloadBart Van Assche1-23/+20
Introduce the helper function srpt_set_enabled(). Protect sport->enabled changes with sdev->mutex. Makes configfs writes into 'enabled' wait until all channel resources have been freed. Wait until channel release has finished during kernel module unload. Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
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