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2017-04-27mailbox: handle empty message in tx_tickSudeep Holla
We already check if the message is empty before calling the client tx_done callback. Calling completion on a wait event is also invalid if the message is empty. This patch moves the existing empty message check earlier. Fixes: 2b6d83e2b8b7 ("mailbox: Introduce framework for mailbox") Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-04-27mailbox: skip complete wait event if timer expiredSudeep Holla
If a wait_for_completion_timeout() call returns due to a timeout, complete() can get called after returning from the wait which is incorrect and can cause subsequent transmissions on a channel to fail. Since the wait_for_completion_timeout() sees the completion variable is non-zero caused by the erroneous/spurious complete() call, and it immediately returns without waiting for the time as expected by the client. This patch fixes the issue by skipping complete() call for the timer expiry. Fixes: 2b6d83e2b8b7 ("mailbox: Introduce framework for mailbox") Reported-by: Alexey Klimov <alexey.klimov@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-04-27mailbox: always wait in mbox_send_message for blocking Tx modeSudeep Holla
There exists a race when msg_submit return immediately as there was an active request being processed which may have completed just before it's checked again in mbox_send_message. This will result in return to the caller without waiting in mbox_send_message even when it's blocking Tx. This patch fixes the issue by waiting for the completion always if Tx is in blocking mode. Fixes: 2b6d83e2b8b7 ("mailbox: Introduce framework for mailbox") Reported-by: Alexey Klimov <alexey.klimov@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Alexey Klimov <alexey.klimov@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-29mailbox: Remove depends on COMPILE_TEST for BCM_FLEXRM_MBOXAnup Patel
The Broadcom FlexRM mailbox driver uses platform MSI support but not all ARCHs provide asm/msi.h. Due to this, we get compilation error in Broadcom FlexRM mailbox driver via linux/msi.h on ARCHs which lack asm/msi.h. This patch removes "depends on COMPILE_TEST" for Kconfig option BCM_FLEXRM_MBOX so that Broadcom FlexRM mailbox driver is only compiled for ARM64. Signed-off-by: Anup Patel <anup.patel@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28mailbox: check ->last_tx_done for NULL in case of timer-based pollingAlexey Klimov
It is allowed by code to register mailbox controller that sets txdone_poll flag to request timer-based polling with missed ->last_tx_done() method. If such thing happens and since presence of last_tx_done() is not checked it will fail in hrtimer callback function txdone_hrtimer() when first message will be transmitted. This patch adds check for this method and logging of error on registration of mailbox controller if it requested timer-based polling. Signed-off-by: Alexey Klimov <alexey.klimov@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28dt-bindings: Add DT bindings info for FlexRM ring managerAnup Patel
This patch adds device tree bindings document for the FlexRM ring manager found on Broadcom iProc SoCs. Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Anup Patel <anup.patel@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28mailbox: Add driver for Broadcom FlexRM ring managerAnup Patel
Some of the Broadcom iProc SoCs have FlexRM ring manager which provides a ring-based programming interface to various offload engines (e.g. RAID, Crypto, etc). This patch adds a common mailbox driver for Broadcom FlexRM ring manager which can be shared by various offload engine drivers (implemented as mailbox clients). Reviewed-by: Ray Jui <ray.jui@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Pramod KUMAR <pramod.kumar@broadcom.com> Signed-off-by: Anup Patel <anup.patel@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28dt-bindings: mailbox: Update doc with NSP PDC/mailbox supportSteve Lin
Update the DT bindings documentation to reflect the new NSP version of PDC driver compatibility string. Signed-off-by: Steve Lin <steven.lin1@broadcom.com> Acked-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28mailbox: bcm-pdc: Add Northstar Plus support to PDC driverSteve Lin
Adds support for Northstar Plus (NS+) products to the PDC mailbox driver. The PDC driver was originally written to support the PDC ring manager in the Northstar2 (64-bit) device. The NS+ (32 bit device) uses an almost identical ring manager, though with a different name. We just need to check for the type of hardware in use, in order to write the appropriate interrupt configuration register. Also updated DMA width to be correct for both NS+ and NS2. Tested on NS+ and NS2. Signed-off-by: Steve Lin <steven.lin1@broadcom.com> Acked-by: Jon Mason <jon.mason@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-28mailbox: constify mbox_chan_ops structuresBhumika Goyal
Check for mbox_chan_ops structures that are only stored in the ops field of a mbox_controller structure. This field is of type const struct mbox_chan_ops *, so mbox_chan_ops structures having this property can be declared as const. Done using Coccinelle: @r1 disable optional_qualifier @ identifier i; position p; @@ struct mbox_chan_ops i@p = {...}; @ok1@ identifier r1.i; struct hi6220_mbox mbox; struct slimpro_mbox ctx; position p; @@ ( mbox.controller.ops=&i@p | ctx.mb_ctrl.ops=&i@p ) @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct mbox_chan_ops i; File size details: text data bss dec hex filename 2310 248 0 2558 9fe drivers/mailbox/hi6220-mailbox.o 2366 192 0 2558 9fe drivers/mailbox/hi6220-mailbox.o 1500 248 0 1748 6d4 mailbox/mailbox-xgene-slimpro.o 1556 192 0 1748 6d4 mailbox/mailbox-xgene-slimpro.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2017-03-27Merge tag 'edac_for_4.11_2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull EDAC updates from Borislav Petkov: "A new EDAC driver for the Pondicherry2 memory controller IP found in the Intel Apollo Lake platform and the Denverton microserver. Plus small fixlets. Normally I had this queued for 4.12 but Tony requested for the pnd2_edac driver to possibly land in 4.11 therefore I'm sending it to you now. It is a driver for new hardware which people don't have yet so it shouldn't cause any regressions. The couple of patches ontop of it show that Qiuxu actually did test it on the hardware he has access to :)" * tag 'edac_for_4.11_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC, pnd2_edac: Fix reported DIMM number EDAC, pnd2_edac: Fix !EDAC_DEBUG build EDAC: Select DEBUG_FS EDAC, pnd2_edac: Add new EDAC driver for Intel SoC platforms EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro EDAC, xgene: Fix wrongly spelled "procesing"
2017-03-27Merge tag 'pinctrl-v4.11-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull more pin control fixes from Linus Walleij: "Here is a bunch of pin control fixes again A bit more than I'd like for this subsystem at this point, but what can I do. They are all driver fixes for hardware issues, as like "we forgot", "we didn't think of the fact that this could happen", "oops that one goes there" etc - Kconfig fixup for the TI IOdelay pinctrl-single add-on - fix up a typo in the meson i2c ao groups - switch a remapping back to use devm_ioremap() as devm_ioremap_resource() does not allow for sharing memory regions - do not clear the Qualcomm irq status bit in irq_unmask(), as this can lead to missing interrupts while the irq handler is executing - add irq_request/release_resources() on the ST driver - add a bunch of mysteriously missing pingroups for high numbered pins in the Qualcomm ipq4019 driver" * tag 'pinctrl-v4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: qcom: ipq4019: add missing pingroups for pins > 70 pinctrl: st: add irq_request/release_resources callbacks pinctrl: qcom: Don't clear status bit on irq_unmask pinctrl: samsung: Fix memory mapping code pinctrl: meson-gxbb: Fix typo in i2c ao groups pinctrl: ti: The IODelay driver is a DRA7xxx feature so depend on that SoC
2017-03-27Merge tag 'm68k-for-v4.11-tag2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: - build warning fix - defconfig updates - wire up new statx syscall * tag 'm68k-for-v4.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Wire up statx m68k/defconfig: Update defconfigs for v4.11-rc1 m68k/bitops: Correct signature of test_bit()
2017-03-26Linux 4.11-rc4Linus Torvalds
2017-03-26Merge tag 'char-misc-4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "A smattering of different small fixes for some random driver subsystems. Nothing all that major, just resolutions for reported issues and bugs. All have been in linux-next with no reported issues" * tag 'char-misc-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits) extcon: int3496: Set the id pin to direction-input if necessary extcon: int3496: Use gpiod_get instead of gpiod_get_index extcon: int3496: Add dependency on X86 as it's Intel specific extcon: int3496: Add GPIO ACPI mapping table extcon: int3496: Rename GPIO pins in accordance with binding vmw_vmci: handle the return value from pci_alloc_irq_vectors correctly ppdev: fix registering same device name parport: fix attempt to write duplicate procfiles auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches Drivers: hv: vmbus: Don't leak memory when a channel is rescinded Drivers: hv: vmbus: Don't leak channel ids Drivers: hv: util: don't forget to init host_ts.lock Drivers: hv: util: move waiting for release to hv_utils_transport itself vmbus: remove hv_event_tasklet_disable/enable vmbus: use rcu for per-cpu channel list mei: don't wait for os version message reply mei: fix deadlock on mei reset intel_th: pci: Add Gemini Lake support intel_th: pci: Add Denverton SOC support intel_th: Don't leak module refcount on failure to activate ...
2017-03-26Merge tag 'driver-core-4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fix from Greg KH: "Here is a single kernfs fix for 4.11-rc4 that resolves a reported issue. It has been in linux-next with no reported issues" * tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()
2017-03-26Merge tag 'tty-4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are some tty and serial driver fixes for 4.11-rc4. One of these fix a long-standing issue in the ldisc code that was found by Dmitry Vyukov with his great fuzzing work. The other fixes resolve other reported issues, and there is one revert of a patch in 4.11-rc1 that wasn't correct. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: fix data race in tty_ldisc_ref_wait() tty: don't panic on OOM in tty_set_ldisc() Revert "tty: serial: pl011: add ttyAMA for matching pl011 console" tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision serial: 8250_dw: Fix breakage when HAVE_CLK=n serial: 8250_dw: Honor clk_round_rate errors in dw8250_set_termios
2017-03-26Merge tag 'staging-4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull IIO driver fixes from Greg KH: "Here are some small IIO driver fixes for 4.11-rc4 that resolve a number of tiny reported issues. All of these have been in linux-next for a while with no reported issues" * tag 'staging-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: imu: st_lsm6dsx: fix FIFO_CTRL2 overwrite during watermark configuration iio: adc: ti_am335x_adc: fix fifo overrun recovery iio: sw-device: Fix config group initialization iio: magnetometer: ak8974: remove incorrect __exit markups iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
2017-03-26Merge tag 'usb-4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY fixes from Greg KH: "Here are a number of small USB and PHY driver fixes for 4.11-rc4. Nothing major here, just an bunch of small fixes, and a handfull of good fixes from Johan for devices with crazy descriptors. There are a few new device ids in here as well. All of these have been in linux-next with no reported issues" * tag 'usb-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits) usb: gadget: f_hid: fix: Don't access hidg->req without spinlock held usb: gadget: udc: remove pointer dereference after free usb: gadget: f_uvc: Sanity check wMaxPacketSize for SuperSpeed usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval usb: gadget: acm: fix endianness in notifications usb: dwc3: gadget: delay unmap of bounced requests USB: serial: qcserial: add Dell DW5811e usb: hub: Fix crash after failure to read BOS descriptor ACM gadget: fix endianness in notifications USB: usbtmc: fix probe error path USB: usbtmc: add missing endpoint sanity check USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems usb: musb: fix possible spinlock deadlock usb: musb: dsps: fix iounmap in error and exit paths usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk uwb: i1480-dfu: fix NULL-deref at probe uwb: hwa-rc: fix NULL-deref at probe USB: wusbcore: fix NULL-deref at probe USB: uss720: fix NULL-deref at probe ...
2017-03-26Merge tag 'powerpc-4.11-6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull more powerpc fixes from Michael Ellerman: "These are all pretty minor. The fix for idle wakeup would be a bad bug but has not been observed in practice. The update to the gcc-plugins docs was Cc'ed to Kees and Jon, Kees OK'ed it going via powerpc and I didn't hear from Jon. - cxl: Route eeh events to all slices for pci_channel_io_perm_failure state - powerpc/64s: Fix idle wakeup potential to clobber registers - Revert "powerpc/64: Disable use of radix under a hypervisor" - gcc-plugins: update architecture list in documentation Thanks to: Andrew Donnellan, Nicholas Piggin, Paul Mackerras, Vaibhav Jain" * tag 'powerpc-4.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: gcc-plugins: update architecture list in documentation Revert "powerpc/64: Disable use of radix under a hypervisor" powerpc/64s: Fix idle wakeup potential to clobber registers cxl: Route eeh events to all slices for pci_channel_io_perm_failure state
2017-03-26Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix a memory leak on an error path, and two races when modifying inodes relating to the inline_data and metadata checksum features" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix two spelling nits ext4: lock the xattr block before checksuming it jbd2: don't leak memory if setting up journal fails ext4: mark inode dirty after converting inline directory
2017-03-26EDAC, pnd2_edac: Fix reported DIMM numberQiuxu Zhuo
DIMM number passed to edac_mc_handle_error() was accidentally hardcoded to zero. Pass in the correct daddr->dimm value. Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de>
2017-03-25Merge tag 'fscrypt-for-linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt Pull fscrypto fixes from Ted Ts'o: "A code cleanup and bugfix for fs/crypto" * tag 'fscrypt-for-linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt: fscrypt: eliminate ->prepare_context() operation fscrypt: remove broken support for detecting keyring key revocation
2017-03-25Merge tag 'hwmon-for-linus-v4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - bug fixes in asus_atk0110, it87 and max31790 drivers - added missing API definition to hwmon core * tag 'hwmon-for-linus-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (asus_atk0110) fix uninitialized data access hwmon: Add missing HWMON_T_ALARM hwmon: (it87) Avoid registering the same chip on both SIO addresses hwmon: (max31790) Set correct PWM value
2017-03-25Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "This has been a slow -rc cycle for the RDMA subsystem. We really haven't had a lot of rc fixes come in. This pull request is the first of this entire rc cycle and it has all of the suitable fixes so far and it's still only about 20 patches. The fix for the minor breakage cause by the dma mapping patchset is in here, as well as a couple other potential oops fixes, but the rest is more minor. Summary: - fix for dma_ops change in this kernel, resolving the s390, powerpc, and IOMMU operation - a few other oops fixes - the rest are all minor fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/qib: fix false-postive maybe-uninitialized warning RDMA/iser: Fix possible mr leak on device removal event IB/device: Convert ib-comp-wq to be CPU-bound IB/cq: Don't process more than the given budget IB/rxe: increment msn only when completing a request uapi: fix rdma/mlx5-abi.h userspace compilation errors IB/core: Restore I/O MMU, s390 and powerpc support IB/rxe: Update documentation link RDMA/ocrdma: fix a type issue in ocrdma_put_pd_num() IB/rxe: double free on error RDMA/vmw_pvrdma: Activate device on ethernet link up RDMA/vmw_pvrdma: Dont hardcode QP header page RDMA/vmw_pvrdma: Cleanup unused variables infiniband: Fix alignment of mmap cookies to support VIPT caching IB/core: Protect against self-requeue of a cq work item i40iw: Receive netdev events post INET_NOTIFIER state
2017-03-25Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/auditLinus Torvalds
Pull audit fix from Paul Moore: "We've got an audit fix, and unfortunately it is big. While I'm not excited that we need to be sending you something this large during the -rcX phase, it does fix some very real, and very tangled, problems relating to locking, backlog queues, and the audit daemon connection. This code has passed our testsuite without problem and it has held up to my ad-hoc stress tests (arguably better than the existing code), please consider pulling this as fix for the next v4.11-rcX tag" * 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit: audit: fix auditd/kernel connection state tracking
2017-03-25ext4: fix two spelling nitsTheodore Ts'o
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2017-03-25ext4: lock the xattr block before checksuming itTheodore Ts'o
We must lock the xattr block before calculating or verifying the checksum in order to avoid spurious checksum failures. https://bugzilla.kernel.org/show_bug.cgi?id=193661 Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
2017-03-25Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A handful of Sunxi and Rockchip clk driver fixes and a core framework one where we need to copy a string because we can't guarantee it isn't freed sometime later" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: sunxi-ng: fix recalc_rate formula of NKMP clocks clk: sunxi-ng: Fix div/mult settings for osc12M on A64 clk: rockchip: Make uartpll a child of the gpll on rk3036 clk: rockchip: add "," to mux_pll_src_apll_dpll_gpll_usb480m_p on rk3036 clk: core: Copy connection id dt-bindings: arm: update Armada CP110 system controller binding clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock clk: sunxi: ccu-sun5i needs nkmp clk: sunxi-ng: mp: Adjust parent rate for pre-dividers
2017-03-24IB/qib: fix false-postive maybe-uninitialized warningArnd Bergmann
aarch64-linux-gcc-7 complains about code it doesn't fully understand: drivers/infiniband/hw/qib/qib_iba7322.c: In function 'qib_7322_txchk_change': include/asm-generic/bitops/non-atomic.h:105:35: error: 'shadow' may be used uninitialized in this function [-Werror=maybe-uninitialized] The code is right, and despite trying hard, I could not come up with a version that I liked better than just adding a fake initialization here to shut up the warning. Fixes: f931551bafe1 ("IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24RDMA/iser: Fix possible mr leak on device removal eventSagi Grimberg
When the rdma device is removed, we must cleanup all the rdma resources within the DEVICE_REMOVAL event handler to let the device teardown gracefully. When this happens with live I/O, some memory regions are occupied. Thus, track them too and dereg all the mr's. We are safe with mr access by iscsi_iser_cleanup_task. Reported-by: Raju Rangoju <rajur@chelsio.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/device: Convert ib-comp-wq to be CPU-boundSagi Grimberg
This workqueue is used by our storage target mode ULPs via the new CQ API. Recent observations when working with very high-end flash storage devices reveal that UNBOUND workqueue threads can migrate between cpu cores and even numa nodes (although some numa locality is accounted for). While this attribute can be useful in some workloads, it does not fit in very nicely with the normal run-to-completion model we usually use in our target-mode ULPs and the block-mq irq<->cpu affinity facilities. The whole block-mq concept is that the completion will land on the same cpu where the submission was performed. The fact that our submitter thread is migrating cpus can break this locality. We assume that as a target mode ULP, we will serve multiple initiators/clients and we can spread the load enough without having to use unbound kworkers. Also, while we're at it, expose this workqueue via sysfs which is harmless and can be useful for debug. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>-- Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/cq: Don't process more than the given budgetSagi Grimberg
The caller might not want this overhead. Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/rxe: increment msn only when completing a requestDavid Marchand
According to C9-147, MSN should only be incremented when the last packet of a multi packet request has been received. "Logically, the requester associates a sequential Send Sequence Number (SSN) with each WQE posted to the send queue. The SSN bears a one- to-one relationship to the MSN returned by the responder in each re- sponse packet. Therefore, when the requester receives a response, it in- terprets the MSN as representing the SSN of the most recent request completed by the responder to determine which send WQE(s) can be completed." Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: David Marchand <david.marchand@6wind.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24uapi: fix rdma/mlx5-abi.h userspace compilation errorsDmitry V. Levin
Consistently use types from linux/types.h to fix the following rdma/mlx5-abi.h userspace compilation errors: /usr/include/rdma/mlx5-abi.h:69:25: error: 'u64' undeclared here (not in a function) MLX5_LIB_CAP_4K_UAR = (u64)1 << 0, /usr/include/rdma/mlx5-abi.h:69:29: error: expected ',' or '}' before numeric constant MLX5_LIB_CAP_4K_UAR = (u64)1 << 0, Include <linux/if_ether.h> to fix the following rdma/mlx5-abi.h userspace compilation error: /usr/include/rdma/mlx5-abi.h:286:12: error: 'ETH_ALEN' undeclared here (not in a function) __u8 dmac[ETH_ALEN]; Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/core: Restore I/O MMU, s390 and powerpc supportBart Van Assche
Avoid that the following error message is reported on the console while loading an RDMA driver with I/O MMU support enabled: DMAR: Allocating domain for mlx5_0 failed Ensure that DMA mapping operations that use to_pci_dev() to access to struct pci_dev see the correct PCI device. E.g. the s390 and powerpc DMA mapping operations use to_pci_dev() even with I/O MMU support disabled. This patch preserves the following changes of the DMA mapping updates patch series: - Introduction of dma_virt_ops. - Removal of ib_device.dma_ops. - Removal of struct ib_dma_mapping_ops. - Removal of an if-statement from each ib_dma_*() operation. - IB HW drivers no longer set dma_device directly. Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reported-by: Parav Pandit <parav@mellanox.com> Fixes: commit 99db9494035f ("IB/core: Remove ib_device.dma_device") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: parav@mellanox.com Tested-by: parav@mellanox.com Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/rxe: Update documentation linkLeon Romanovsky
All Soft-RoCE (rxe) is handled now in rdma-core user space library, so the documentation. The patch below updates the documentation link to that new location. Reported-by: Josh Beavers <josh.beavers@gmail.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24RDMA/ocrdma: fix a type issue in ocrdma_put_pd_num()Dan Carpenter
We want to return zero on success or negative error codes. The type should be int and not u8. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/rxe: double free on errorDan Carpenter
"goto err;" has it's own kfree_skb() call so it's a double free. We only need to free on the "goto exit;" path. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24RDMA/vmw_pvrdma: Activate device on ethernet link upAditya Sarwade
Restore device state when ethernet link changes to active. Acked-by: George Zhang <georgezhang@vmware.com> Acked-by: Jorgen Hansen <jhansen@vmware.com> Acked-by: Bryan Tan <bryantan@vmware.com> Signed-off-by: Aditya Sarwade <asarwade@vmware.com> Signed-off-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24RDMA/vmw_pvrdma: Dont hardcode QP header pageAdit Ranadive
Moved the header page count to a macro. Reported-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Aditya Sarwade <asarwade@vmware.com> Tested-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24RDMA/vmw_pvrdma: Cleanup unused variablesAdit Ranadive
Removed the unused nreq and redundant index variables. Moved hardcoded async and cq ring pages number to macro. Reported-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Adit Ranadive <aditr@vmware.com> Reviewed-by: Aditya Sarwade <asarwade@vmware.com> Tested-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24Merge tag 'vfio-v4.11-rc4' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO fix from Alex Williamson: "Rework sanity check for mdev driver group notifier de-registration (Alex Williamson)" * tag 'vfio-v4.11-rc4' of git://github.com/awilliam/linux-vfio: vfio: Rework group release notifier warning
2017-03-24Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A few fixes for the current series that should go into -rc4. This contains: - a fix for a potential corruption of un-started requests from Ming. - a blk-stat fix from Omar, ensuring we flush the stat batch before checking nr_samples. - a set of fixes from Sagi for the nvmeof family" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: don't complete un-started request in timeout handler nvme-loop: handle cpu unplug when re-establishing the controller nvme-rdma: handle cpu unplug when re-establishing the controller nvmet-rdma: Fix a possible uninitialized variable dereference nvmet: confirm sq percpu has scheduled and switched to atomic nvme-loop: fix a possible use-after-free when destroying the admin queue blk-stat: fix blk_stat_sum() if all samples are batched
2017-03-24Merge tag 'ceph-for-4.11-rc4' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fix from Ilya Dryomov: "A fix for a writeback deadlock caused by a GFP_KERNEL allocation on the reclaim path, tagged for stable" * tag 'ceph-for-4.11-rc4' of git://github.com/ceph/ceph-client: libceph: force GFP_NOIO for socket allocations
2017-03-24Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: - a couple of OMAP 4.11 regression fixes, including a boot regression for SmartReflex, hypervisor mode in thumb2 mode, and reference counting of device nodes - a fix for cpu_idle on at91 - minor DT fixes on across several platforms: sunxi, bcm53xx, at91, nsp, ns2, ux500, omap - a fix to correct an API change in the reset controllers * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits) arm64: dts: NS2: Add dma-coherent to relevant DT entries reset: fix optional reset_control_get stubs to return NULL ARM: sun8i: a23/a33: drop bl_en_pin GPIO pinmux in reference design DTSI ARM: dts: sun7i: lamobo-r1: Fix CPU port RGMII settings ARM: dts: NSP: GPIO reboot open-source ARM: at91: pm: cpu_idle: switch DDR to power-down mode ARM: dts: add the AB8500 clocks to the device tree ARM: dts: imx6sx-udoo-neo: Fix reboot hang ARM: sun8i: Fix the mali clock rate ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags ARM: dts: BCM5301X: Fix memory start address ARM: dts: BCM5301X: Fix UARTs on bcm953012k Revert "ARM: at91/dt: sama5d2: Use new compatible for ohci node" ARM: OMAP2+: Release device node after it is no longer needed. ARM: OMAP2+: Fix device node reference counts ARM: OMAP2+: Remove legacy gpmc-nand.c ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure ARM: dts: am335x-pcm953: Fix legacy wakeup source binding ARM: omap2plus_defconfig: Enable INPUT_MOUSEDEV as loadable modules ARM: dts: am57xx-idk: tpic2810 is on I2C bus, not SPI ...
2017-03-24Merge tag 'for-linus-4.11b-rc4-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Fixes for PM under Xen" * tag 'for-linus-4.11b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/acpi: upload PM state from init-domain to Xen xen/acpi: Replace hard coded "ACPI0007"
2017-03-24Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "There's a kaslr fix and then two patches to update our native and compat syscall tables. Arnd asked that we take the addition of statx to the asm-generic unistd.h via arm64, as he didn't have anything queued in the asm-generic tree. Summary: - Fix mapping of kernel image under certain kaslr offsets - Hook up new statx syscall in asm-generic syscall table - Update compat syscall table to match arch/arm/ (pkeys and statx)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: kaslr: Fix up the kernel image alignment arm64: compat: Update compat syscalls generic syscalls: Wire up statx syscall
2017-03-24Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes regressions in the crypto ccp driver and the hwrng drivers for amd and geode" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: hwrng: geode - Revert managed API changes hwrng: amd - Revert managed API changes crypto: ccp - Assign DMA commands to the channel's CCP
2017-03-24infiniband: Fix alignment of mmap cookies to support VIPT cachingJason Gunthorpe
When vmalloc_user is used to create memory that is supposed to be mmap'd to user space, it is necessary for the mmap cookie (eg the offset) to be aligned to SHMLBA. This creates a situation where all virtual mappings of the same physical page share the same virtual cache index and guarantees VIPT coherence. Otherwise the cache is non-coherent and the kernel will not see writes by userspace when reading the shared page (or vice-versa). Reported-by: Josh Beavers <josh.beavers@gmail.com> Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>