- 16 Dec, 2014 3 commits
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Haggai Eran authored
In order to allow umems that do not pin memory, we need the umem to keep track of its region's address. This makes the offset field redundant, and so this patch removes it. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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Haggai Eran authored
The current UMR interface doesn't allow partial updates to a memory region's page tables. This patch changes the interface to allow that. It also changes the way the UMR operation validates the memory region's state. When set, IB_SEND_UMR_FAIL_IF_FREE will cause the UMR operation to fail if the MKEY is in the free state. When it is unchecked the operation will check that it isn't in the free state. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Shachar Raindel <raindel@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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Haggai Eran authored
Since UMR code now uses its own context struct on the stack, the pas and dma pointers for the UMR operation that remained in the mlx5_ib_mr struct are not necessary. This patch removes them. Fixes: a74d2416 ("IB/mlx5: Refactor UMR to have its own context struct") Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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- 11 Dec, 2014 37 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds authored
Pull networking updates from David Miller: 1) New offloading infrastructure and example 'rocker' driver for offloading of switching and routing to hardware. This work was done by a large group of dedicated individuals, not limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend, Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu 2) Start making the networking operate on IOV iterators instead of modifying iov objects in-situ during transfers. Thanks to Al Viro and Herbert Xu. 3) A set of new netlink interfaces for the TIPC stack, from Richard Alpe. 4) Remove unnecessary looping during ipv6 routing lookups, from Martin KaFai Lau. 5) Add PAUSE frame generation support to gianfar driver, from Matei Pavaluca. 6) Allow for larger reordering levels in TCP, which are easily achievable in the real world right now, from Eric Dumazet. 7) Add a variable of napi_schedule that doesn't need to disable cpu interrupts, from Eric Dumazet. 8) Use a doubly linked list to optimize neigh_parms_release(), from Nicolas Dichtel. 9) Various enhancements to the kernel BPF verifier, and allow eBPF programs to actually be attached to sockets. From Alexei Starovoitov. 10) Support TSO/LSO in sunvnet driver, from David L Stevens. 11) Allow controlling ECN usage via routing metrics, from Florian Westphal. 12) Remote checksum offload, from Tom Herbert. 13) Add split-header receive, BQL, and xmit_more support to amd-xgbe driver, from Thomas Lendacky. 14) Add MPLS support to openvswitch, from Simon Horman. 15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen Klassert. 16) Do gro flushes on a per-device basis using a timer, from Eric Dumazet. This tries to resolve the conflicting goals between the desired handling of bulk vs. RPC-like traffic. 17) Allow userspace to ask for the CPU upon what a packet was received/steered, via SO_INCOMING_CPU. From Eric Dumazet. 18) Limit GSO packets to half the current congestion window, from Eric Dumazet. 19) Add a generic helper so that all drivers set their RSS keys in a consistent way, from Eric Dumazet. 20) Add xmit_more support to enic driver, from Govindarajulu Varadarajan. 21) Add VLAN packet scheduler action, from Jiri Pirko. 22) Support configurable RSS hash functions via ethtool, from Eyal Perry. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits) Fix race condition between vxlan_sock_add and vxlan_sock_release net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header net/mlx4: Add support for A0 steering net/mlx4: Refactor QUERY_PORT net/mlx4_core: Add explicit error message when rule doesn't meet configuration net/mlx4: Add A0 hybrid steering net/mlx4: Add mlx4_bitmap zone allocator net/mlx4: Add a check if there are too many reserved QPs net/mlx4: Change QP allocation scheme net/mlx4_core: Use tasklet for user-space CQ completion events net/mlx4_core: Mask out host side virtualization features for guests net/mlx4_en: Set csum level for encapsulated packets be2net: Export tunnel offloads only when a VxLAN tunnel is created gianfar: Fix dma check map error when DMA_API_DEBUG is enabled cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call net: fec: only enable mdio interrupt before phy device link up net: fec: clear all interrupt events to support i.MX6SX net: fec: reset fep link status in suspend function net: sock: fix access via invalid file descriptor net: introduce helper macro for_each_cmsghdr ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound updates from Takashi Iwai: "This became a fairly large pull request. In addition to the usual driver updates / fixes, there have been a high amount of cleanups in ASoC area, as well as control API helpers and kernel documentations fixes touching through the whole tree. In the driver side, the biggest changes are the support for new Intel SoC found on new x86 machines, and the updates of FireWire dice and oxfw drivers. Some remarkable items are below: ALSA core: - PCM mmap code cleanup, removal of arch-dependent codes - PCM xrun injection support - PCM hwptr tracepoint support - Refactoring of snd_pcm_action(), simplification of PCM locking - Robustified sequecner auto-load functionality - New control API helpers and lots of cleanups along with them - Lots of kerneldoc fixes and cleanups USB-audio: - The mixer resume code was largely rewritten, and the devices with quirks are resumed properly. - New hardware support: Focusrite Scarlett, Digidesign Mbox1, Denon/Marantz DACs, Zoom R16/24 FireWire: - DICE driver updates with better duplex and sync support, including MIDI support - New OXFW driver for Oxford Semiconductor FW970/971 chipset, including the previous LaCie Speakers device. Fullduplex and MIDI support included as well as DICE driver. HD-audio: - Refactoring the driver-caps quirk handling in snd-hda-intel - More consistent control names representing the topology better - Fixups: HP mute LED with ALC268 codec, Ideapad S210 built-in mic fix, ASUS Z99He laptop EAPD ASoC: - Conversion of AC'97 drivers to use regmap, bringing us closer to the removal of the ASoC level I/O code - Clean up a lot of old drivers that were open coding things that have subsequently been implemented in the core - Some DAPM performance improvements - Removal of the now seldom used CODEC mutex - Lots of updates for the newer Intel SoC support, including support for the DSP and some Cherrytrail and Braswell machine drivers - Support for Samsung boards using rt5631 as the CODEC - Removal of the obsolete AFEB9260 machine driver - Driver support for the TI TS3A227E headset driver used in some Chrombeooks Others: - ASIHPI driver update and cleanups - Lots of dev_*() printk conversions - Lots of trivial cleanups for the codes spotted by Coccinelle" * tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits) ALSA: pcxhr: NULL dereference on probe failure ALSA: lola: NULL dereference on probe failure ALSA: hda - Add "eapd" model string for AD1986A codec ALSA: hda - Add EAPD fixup for ASUS Z99He laptop ALSA: oxfw: Add hwdep interface ALSA: oxfw: Add support for capture/playback MIDI messages ALSA: oxfw: add support for capturing PCM samples ALSA: oxfw: Add support AMDTP in-stream ALSA: oxfw: Add support for Behringer/Mackie devices ALSA: oxfw: Change the way to start stream ALSA: oxfw: Add proc interface for debugging purpose ALSA: oxfw: Change the way to make PCM rules/constraints ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formation ALSA: oxfw: Change the way to name card ALSA: dice: Add support for MIDI capture/playback ALSA: dice: Add support for capturing PCM samples ALSA: dice: Support for non SYT-Match sampling clock source mode ALSA: dice: Add support for duplex streams with synchronization ALSA: dice: Change the way to start stream ALSA: jack: Add dummy snd_jack_set_key() definition ...
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git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linuxLinus Torvalds authored
Pull devicetree changes from Grant Likely: "Lots of activity in the devicetree code for v3.18. Most of it is related to getting all of the overlay support code in place, but there are other important things in there. Highlights: - OF_RECONFIG notifiers for SPI, I2C and Platform devices. Those subsystems can now respond to live changes to the device tree. - CONFIG_OF_OVERLAY method for applying live changes to the device tree - Removal of the of_allnodes list. This used to be used to iterate over all the nodes in the device tree, but it is unnecessary because the same thing can be done by iterating over the list of child pointers. Getting rid of of_allnodes saves some memory and avoids the possibility of of_allnodes being sorted differently from the child lists. - Support for retrieving original DTB blob via sysfs. Needed by kexec. - More unittests - Documentation and minor bug fixes" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (42 commits) of: Delete unnecessary check before calling "of_node_put()" of: Drop ->next pointer from struct device_node spi: Check for spi_of_notifier when CONFIG_OF_DYNAMIC=y of: support passing console options with stdout-path of: add optional options parameter to of_find_node_by_path() of: Add bindings for chosen node, stdout-path of: Remove unneeded and incorrect MODULE_DEVICE_TABLE ARM: dt: fix up PL011 device tree bindings of: base, fix of_property_read_string_helper kernel-doc of: remove select of non-existant OF_DEVICE config symbol spi/of: Add OF notifier handler spi/of: Create new device registration method and accessors i2c/of: Add OF_RECONFIG notifier handler i2c/of: Factor out Devicetree registration code of/overlay: Add overlay unittests of/overlay: Introduce DT overlay support of/reconfig: Add OF_DYNAMIC notifier for platform_bus_type of/reconfig: Always use the same structure for notifiers of/reconfig: Add debug output for OF_RECONFIG notifiers of/reconfig: Add empty stubs for the of_reconfig methods ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linuxLinus Torvalds authored
Pull fbdev updates from Tomi Valkeinen: - support for mx6sl and mx6sx - OMAP HDMI audio rewrite to make it finally work - OMAP video PLL work to prepare for new DRA7xx SoCs - simplefb DT related improvements * tag 'fbdev-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (81 commits) video: uvesafb: Deletion of an unnecessary check before the function call "platform_device_put" video: fbdev-VIA: Deletion of an unnecessary check before the function call "framebuffer_release" video: fbdev-MMP: Deletion of an unnecessary check before the function call "mmp_unregister_path" video: mx3fb: Deletion of an unnecessary check before the function call "backlight_device_unregister" video: fbdev-OMAP2: Deletion of unnecessary checks before the function call "i2c_put_adapter" video: fbdev-SIS: Deletion of unnecessary checks before the function call "pci_dev_put" video: smscufx: Deletion of unnecessary checks before the function call "vfree" video: udlfb: Deletion of unnecessary checks before the function call "vfree" video: uvesafb: Deletion of an unnecessary check before the function call "uvesafb_free" video: fbdev-LCDC: Deletion of an unnecessary check before the function call "vfree" video: fbdev: arkfb: suppress build warning video: fbdev: s3fb: suppress build warning video: fbdev: vt8623fb: suppress build warning OMAPDSS: hdmi5: Fix bit field for IEC958_AES2_CON_SOURCE OMAPDSS: hdmi: Remove __exit qualifier from hdmi_uninit_output() OMAPDSS: hdmi5: Change hdmi_wp idlemode to to no_idle for audio playback OMAPDSS: Remove all references to obsolete HDMI audio callbacks ASoC: omap: Remove obsolete HDMI audio code and Kconfig options OMAPDSS: hdmi5: Register ASoC platform device for omap hdmi audio OMAPDSS: hdmi5: Remove callbacks for the old ASoC DAI driver ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull virtio updates from Michael Tsirkin: "virtio: virtio 1.0 support, misc patches This adds a lot of infrastructure for virtio 1.0 support. Notable missing pieces: virtio pci, virtio balloon (needs spec extension), vhost scsi. Plus, there are some minor fixes in a couple of places. Note: some net drivers are affected by these patches. David said he's fine with merging these patches through my tree. Rusty's on vacation, he acked using my tree for these, too" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (70 commits) virtio_ccw: finalize_features error handling virtio_ccw: future-proof finalize_features virtio_pci: rename virtio_pci -> virtio_pci_common virtio_pci: update file descriptions and copyright virtio_pci: split out legacy device support virtio_pci: setup config vector indirectly virtio_pci: setup vqs indirectly virtio_pci: delete vqs indirectly virtio_pci: use priv for vq notification virtio_pci: free up vq->priv virtio_pci: fix coding style for structs virtio_pci: add isr field virtio: drop legacy_only driver flag virtio_balloon: drop legacy_only driver flag virtio_ccw: rev 1 devices set VIRTIO_F_VERSION_1 virtio: allow finalize_features to fail virtio_ccw: legacy: don't negotiate rev 1/features virtio: add API to detect legacy devices virtio_console: fix sparse warnings vhost: remove unnecessary forward declarations in vhost.h ...
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git://git.linaro.org/landing-teams/working/fujitsu/integrationLinus Torvalds authored
Pull mailbox framework updates from Jassi Brar. * 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration: Mailbox: Add support for Platform Communication Channel mailbox/omap: adapt to the new mailbox framework mailbox: add tx_prepare client callback mailbox: Don't unnecessarily re-arm the polling timer
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "Not a huge amount going on this release, mainly new drivers (there's a couple more waiting that didn't quite make the cut for this release too): - An interface for querying if the current transfer is the last in a message, allowing controllers that need special handling for the final transfer to use the core message parsing. - Support for Amlogic Meson SPIFC, Imagination Technologies SFPI, Intel Quark X1000 and Samsung Exynos 7 controllers" * tag 'spi-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (38 commits) spi/s3c64xx: Remove redundant runtime PM management spi: fsl-spi: remove unused variable assignment spi: spi-fsl-spi: Return an error code in fsl_spi_do_one_msg() spi: core: Do not mangle error code from kthread_run() spi: fsl-espi: add (un)prepare_transfer_hardware calls to save power if SPI is not in use spi: fsl-(e)spi: migrate to generic master queueing spi/txx9: Deletion of an unnecessary check before the function call "clk_disable" spi: cadence: Fix 3-to-8 mux mode spi: cadence: Init HW after reading devicetree attributes spi: meson: Select REGMAP_MMIO spi: s3c64xx: add support for exynos7 SPI controller spi: spi-pxa2xx: SPI support for Intel Quark X1000 spi: meson: meson_spifc_setup_speed() can be static spi: spi-pxa2xx: Add helpers for regiseters' accessing spi: spi-mxs: Fix mapping from vmalloc-ed buffer to scatter list spi: atmel: introduce probe deferring spi: atmel: remove compat for non DT board when requesting dma chan spi: meson: Add support for Amlogic Meson SPIFC spi: meson: Add device tree bindings documentation for SPIFC spi: core: Add spi_transfer_is_last() helper ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edacLinus Torvalds authored
Pull edac updates from Mauro Carvalho Chehab: - Broadwell-DE support on sb-edac driver - Some fixes at sb-edac driver * tag 'edac/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: sb_edac: Fix typo computing number of banks sb_edac: Add support for Broadwell-DE processor sb_edac: Fix discovery of top-of-low-memory for Haswell sb_edac: Fix erroneous bytes->gigabytes conversion sb_edac: Fix off-by-one error in number of channels
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Marcelo Leitner authored
Currently, when trying to reuse a socket, vxlan_sock_add will grab vn->sock_lock, locate a reusable socket, inc refcount and release vn->sock_lock. But vxlan_sock_release() will first decrement refcount, and then grab that lock. refcnt operations are atomic but as currently we have deferred works which hold vs->refcnt each, this might happen, leading to a use after free (specially after vxlan_igmp_leave): CPU 1 CPU 2 deferred work vxlan_sock_add ... ... spin_lock(&vn->sock_lock) vs = vxlan_find_sock(); vxlan_sock_release dec vs->refcnt, reaches 0 spin_lock(&vn->sock_lock) vxlan_sock_hold(vs), refcnt=1 spin_unlock(&vn->sock_lock) hlist_del_rcu(&vs->hlist); vxlan_notify_del_rx_port(vs) spin_unlock(&vn->sock_lock) So when we look for a reusable socket, we check if it wasn't freed already before reusing it. Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Fixes: 7c47cedf ("vxlan: move IGMP join/leave to work queue") Signed-off-by: David S. Miller <davem@davemloft.net>
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Cyrille Pitchen authored
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: - Two new dvb frontend drivers: mn88472 and mn88473 - A new driver for some PCIe DVBSky cards - A new remote controller driver: meson-ir - One LIRC staging driver got rewritten and promoted to mainstream: igorplugusb - A new tuner driver (m88rs6000t) - The old omap2 media driver got removed from staging. This driver uses an old DMA API and it is likely broken on recent kernels. Nobody cared enough to fix it - Media bus format moved to a separate header, as DRM will also use the definitions there - mem2mem_testdev were renamed to vim2m, in order to use the same naming convention taken by the other virtual test driver (vivid) - Added a new driver for coda SoC (coda-jpeg) - The cx88 driver got converted to use videobuf2 core - Make DMABUF export buffer to work with DMA Scatter/Gather and Vmalloc cores - Lots of other fixes, improvements and cleanups on the drivers. * tag 'media/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (384 commits) [media] mn88473: One function call less in mn88473_init() after error [media] mn88473: Remove uneeded check before release_firmware() [media] lirc_zilog: Deletion of unnecessary checks before vfree() [media] MAINTAINERS: Add myself as img-ir maintainer [media] img-ir: Don't set driver's module owner [media] img-ir: Depend on METAG or MIPS or COMPILE_TEST [media] img-ir/hw: Drop [un]register_decoder declarations [media] img-ir/hw: Fix potential deadlock stopping timer [media] img-ir/hw: Always read data to clear buffer [media] redrat3: ensure dma is setup properly [media] ddbridge: remove unneeded check before dvb_unregister_device() [media] si2157: One function call less in si2157_init() after error [media] tuners: remove uneeded checks before release_firmware() [media] arm: omap2: rx51-peripherals: fix build warning [media] stv090x: add an extra protetion against buffer overflow [media] stv090x: Remove an unreachable code [media] stv090x: Some whitespace cleanups [media] em28xx: checkpatch cleanup: whitespaces/new lines cleanups [media] si2168: add support for firmware files in new format [media] si2168: debug printout for firmware version ...
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David S. Miller authored
Or Gerlitz says: ==================== mlx4 driver update This series from Matan, Jenny, Dotan and myself is mostly about adding support to a new performance optimized flow steering mode (patches 4-10). The 1st two patches are small fixes (one for VXLAN and one for SRIOV), and the third patch is a fix to avoid hard-lockup situation when many (hunderds) processes holding user-space QPs/CQs get events. Matan and Or. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
Add the required firmware commands for A0 steering and a way to enable that. The firmware support focuses on INIT_HCA, QUERY_HCA, QUERY_PORT, QUERY_DEV_CAP and QUERY_FUNC_CAP commands. Those commands are used to configure and query the device. The different A0 DMFS (steering) modes are: Static - optimized performance, but flow steering rules are limited. This mode should be choosed explicitly by the user in order to be used. Dynamic - this mode should be explicitly choosed by the user. In this mode, the FW works in optimized steering mode as long as it can and afterwards automatically drops to classic (full) DMFS. Disable - this mode should be explicitly choosed by the user. The user instructs the system not to use optimized steering, even if the FW supports Dynamic A0 DMFS (and thus will be able to use optimized steering in Default A0 DMFS mode). Default - this mode is implicitly choosed. In this mode, if the FW supports Dynamic A0 DMFS, it'll work in this mode. Otherwise, it'll work at Disable A0 DMFS mode. Under SRIOV configuration, when the A0 steering mode is enabled, older guest VF drivers who aren't using the RX QP allocation flag (MLX4_RESERVE_A0_QP) will get a QP from the general range and fail when attempting to register a steering rule. To avoid that, the PF context behaviour is changed once on A0 static mode, to require support for the allocation flag in VF drivers too. In order to enable A0 steering, we use log_num_mgm_entry_size param. If the value of the parameter is not positive, we treat the absolute value of log_num_mgm_entry_size as a bit field. Setting bit 2 of this bit field enables static A0 steering. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
Currently QUERY_PORT is done as a part of QUERY_DEV_CAP firmware command. Since we would like to use it without querying all device capabilities, extract this part to be a function of its own. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
When a given flow steering rule is invalid in respect to the current steering configuration, print the correct error message to the system log. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
A0 hybrid steering is a form of high performance flow steering. By using this mode, mlx4 cards use a fast limited table based steering, in order to enable fast steering of unicast packets to a QP. In order to implement A0 hybrid steering we allocate resources from different zones: (1) General range (2) Special MAC-assigned QPs [RSS, Raw-Ethernet] each has its own region. When we create a rss QP or a raw ethernet (A0 steerable and BF ready) QP, we try hard to allocate the QP from range (2). Otherwise, we try hard not to allocate from this range. However, when the system is pushed to its limits and one needs every resource, the allocator uses every region it can. Meaning, when we run out of raw-eth qps, the allocator allocates from the general range (and the special-A0 area is no longer active). If we run out of RSS qps, the mechanism tries to allocate from the raw-eth QP zone. If that is also exhausted, the allocator will allocate from the general range (and the A0 region is no longer active). Note that if a raw-eth qp is allocated from the general range, it attempts to allocate the range such that bits 6 and 7 (blueflame bits) in the QP number are not set. When the feature is used in SRIOV, the VF has to notify the PF what kind of QP attributes it needs. In order to do that, along with the "Eth QP blueflame" bit, we reserve a new "A0 steerable QP". According to the combination of these bits, the PF tries to allocate a suitable QP. In order to maintain backward compatibility (with older PFs), the PF notifies which QP attributes it supports via QUERY_FUNC_CAP command. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
The zone allocator is a mechanism which manages a few mlx4_bitmaps. When allocating a resource, the user indicates the desired zone of which this resource will be allocated from. If possible, the resource will be allocated from this zone. Otherwise, the resource will be allocated from a less-than, equal-to, higher-than priority zone, according to the desired zone's properties with that respective allocation order. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dotan Barak authored
The number of reserved QPs is affected both from the firmware and from the driver's requirements. This patch adds a check that validates that this number is indeed feasable. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eugenia Emantayev authored
When using BF (Blue-Flame), the QPN overrides the VLAN, CV, and SV fields in the WQE. Thus, BF may only be used for QPNs with bits 6,7 unset. The current Ethernet driver code reserves a Tx QP range with 256b alignment. This is wrong because if there are more than 64 Tx QPs in use, QPNs >= base + 65 will have bits 6/7 set. This problem is not specific for the Ethernet driver, any entity that tries to reserve more than 64 BF-enabled QPs should fail. Also, using ranges is not necessary here and is wasteful. The new mechanism introduced here will support reservation for "Eth QPs eligible for BF" for all drivers: bare-metal, multi-PF, and VFs (when hypervisors support WC in VMs). The flow we use is: 1. In mlx4_en, allocate Tx QPs one by one instead of a range allocation, and request "BF enabled QPs" if BF is supported for the function 2. In the ALLOC_RES FW command, change param1 to: a. param1[23:0] - number of QPs b. param1[31-24] - flags controlling QPs reservation Bit 31 refers to Eth blueflame supported QPs. Those QPs must have bits 6 and 7 unset in order to be used in Ethernet. Bits 24-30 of the flags are currently reserved. When a function tries to allocate a QP, it states the required attributes for this QP. Those attributes are considered "best-effort". If an attribute, such as Ethernet BF enabled QP, is a must-have attribute, the function has to check that attribute is supported before trying to do the allocation. In a lower layer of the code, mlx4_qp_reserve_range masks out the bits which are unsupported. If SRIOV is used, the PF validates those attributes and masks out unsupported attributes as well. In order to notify VFs which attributes are supported, the VF uses QUERY_FUNC_CAP command. This command's mailbox is filled by the PF, which notifies which QP allocation attributes it supports. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matan Barak authored
Previously, we've fired all our completion callbacks straight from our ISR. Some of those callbacks were lightweight (for example, mlx4_en's and IPoIB napi callbacks), but some of them did more work (for example, the user-space RDMA stack uverbs' completion handler). Besides that, doing more than the minimal work in ISR is generally considered wrong, it could even lead to a hard lockup of the system. Since when a lot of completion events are generated by the hardware, the loop over those events could be so long, that we'll get into a hard lockup by the system watchdog. In order to avoid that, add a new way of invoking completion events callbacks. In the interrupt itself, we add the CQs which receive completion event to a per-EQ list and schedule a tasklet. In the tasklet context we loop over all the CQs in the list and invoke the user callback. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Or Gerlitz authored
When VFs (guests in this context) issue the QUERY_DEV_CAP command, they need not be told that host side virtualization features such as VST, FSM (MAC anti-spoofing) and running > 80 VFs are supported by the device. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Or Gerlitz authored
This was dropped by mistake for the napi_gro_frags flow, fix that. Fixes: dd65beac ('net/mlx4_en: Extend usage of napi_gro_frags') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlightLinus Torvalds authored
Pull backlight updates from Lee Jones: - Clean-up leaky resources; pwm_bl - Simplify Device Tree initialisation; lp855x_bl - Add Regulator support; lp855x - Remove Bryan from the Maintainer list -- new baby, no time :) * tag 'backlight-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: MAINTAINERS: Remove my name from Backlight subsystem backlight: lp855x: Add supply regulator to lp855x backlight: lp855x: Refactor DT parsing code backlight: pwm: Clean-up pwm requested using legacy API
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Sriharsha Basavapatna authored
The encapsulated offload flags shouldn't be unconditionally exported to the stack. The stack expects offloading to work across all tunnel types when those flags are set. This would break other tunnels (like GRE) since be2net currently supports tunnel offload for VxLAN only. Also, with VxLANs Skyhawk-R can offload only 1 UDP dport. If more than 1 UDP port is added, we should disable offloads in that case too. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kevin Hao authored
We need to use dma_mapping_error() to check the dma address returned by dma_map_single/page(). Otherwise we would get warning like this: WARNING: at lib/dma-debug.c:1140 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.0-rc2-next-20141029 #196 task: c0834300 ti: effe6000 task.ti: c0874000 NIP: c02b2c98 LR: c02b2c98 CTR: c030abc4 REGS: effe7d70 TRAP: 0700 Not tainted (3.18.0-rc2-next-20141029) MSR: 00021000 <CE,ME> CR: 22044022 XER: 20000000 GPR00: c02b2c98 effe7e20 c0834300 00000098 00021000 00000000 c030b898 00000003 GPR08: 00000001 00000000 00000001 749eec9d 22044022 1001abe0 00000020 ef278678 GPR16: ef278670 ef278668 ef278660 070a8040 c087f99c c08cdc60 00029000 c0840d44 GPR24: c08be6e8 c0840000 effe7e78 ef041340 00000600 ef114e10 00000000 c08be6e0 NIP [c02b2c98] check_unmap+0x51c/0x9e4 LR [c02b2c98] check_unmap+0x51c/0x9e4 Call Trace: [effe7e20] [c02b2c98] check_unmap+0x51c/0x9e4 (unreliable) [effe7e70] [c02b31d8] debug_dma_unmap_page+0x78/0x8c [effe7ed0] [c03d1640] gfar_clean_rx_ring+0x208/0x488 [effe7f40] [c03d1a9c] gfar_poll_rx_sq+0x3c/0xa8 [effe7f60] [c04f8714] net_rx_action+0xc0/0x178 [effe7f90] [c00435a0] __do_softirq+0x100/0x1fc [effe7fe0] [c0043958] irq_exit+0xa4/0xc8 [effe7ff0] [c000d14c] call_do_irq+0x24/0x3c [c0875e90] [c00048a0] do_IRQ+0x8c/0xf8 [c0875eb0] [c000ed10] ret_from_except+0x0/0x18 For TX, we need to unmap the pages which has already been mapped and free the skb before return. For RX, move the dma mapping and error check to gfar_new_skb(). We would reuse the original skb in the rx ring when either allocating skb failure or dma mapping error. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Reviewed-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai authored
Remove use of calls into t4_fw_hello() with MASTER_MUST, which results in FW_HELLO_CMD_MASTERFORCE being set. The firmware doesn't support this and of course any existing PF Drivers will totally go for a toss. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control changes from Linus Walleij: "Here is a stash of pin control changes I have collected for the v3.19 series. Mainly new hardware support, with Intels new embedded SoC as the especially interesting thing standing out, fully using the subsystem. - Force conversion of the ux500 pin control device trees and parsers to use the generic pin control bindings. - New driver and device tree bindings for the Qualcomm PMIC MPP pin controller and GPIO. - Some ACPI infrastructure for pin controllers. - New driver for the Intel CherryView/Braswell pin controller, the first Intel pin controller to fully take advantage of the pin control subsystem. - Support the Freescale i.MX VF610 variant. - Support the sunxi A80 variant. - Support the Samsung Exynos 4415 and Exynos 7 variants. - Split out Intel pin controllers to their own subdirectory. - A large slew of rockchip pin control updates, including suspend/resume support. - A large slew of Samsung Exynos pin controller updates. - Various minor updates and fixes" * tag 'pinctrl-v3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (49 commits) pinctrl: at91: enhance (debugfs) at91_gpio_dbg_show pinctrl: meson: add device tree bindings documentation gpio: tz1090: Fix error handling of irq_of_parse_and_map pinctrl: tz1090-pinctrl.txt: Fix typo in binding pinctrl: pinconf-generic: Declare dt_params/conf_items const pinctrl: exynos: Add support for Exynos4415 pinctrl: exynos: Add initial driver data for Exynos7 pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts pinctrl: exynos: Consolidate irq domain callbacks pinctrl: exynos: Generalize the eint16_31 demux code pinctrl: samsung: Separate per-bank init and runtime data pinctrl: samsung: Constify samsung_pin_ctrl struct pinctrl: samsung: Constify samsung_pin_bank_type struct pinctrl: samsung: Drop unused label field in samsung_pin_ctrl struct pinctrl: samsung: Make samsung_pinctrl_get_soc_data use ERR_PTR() pinctrl: Add Intel Cherryview/Braswell pin controller support gpio / ACPI: Add knowledge about pin controllers to acpi_get_gpiod() pinctrl: Fix path error in documentation pinctrl: rockchip: save and restore gpio6_c6 pinmux in suspend/resume pinctrl: rockchip: add suspend/resume functions ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI and power management updates from Rafael Wysocki: "This time we have some more new material than we used to have during the last couple of development cycles. The most important part of it to me is the introduction of a unified interface for accessing device properties provided by platform firmware. It works with Device Trees and ACPI in a uniform way and drivers using it need not worry about where the properties come from as long as the platform firmware (either DT or ACPI) makes them available. It covers both devices and "bare" device node objects without struct device representation as that turns out to be necessary in some cases. This has been in the works for quite a few months (and development cycles) and has been approved by all of the relevant maintainers. On top of that, some drivers are switched over to the new interface (at25, leds-gpio, gpio_keys_polled) and some additional changes are made to the core GPIO subsystem to allow device drivers to manipulate GPIOs in the "canonical" way on platforms that provide GPIO information in their ACPI tables, but don't assign names to GPIO lines (in which case the driver needs to do that on the basis of what it knows about the device in question). That also has been approved by the GPIO core maintainers and the rfkill driver is now going to use it. Second is support for hardware P-states in the intel_pstate driver. It uses CPUID to detect whether or not the feature is supported by the processor in which case it will be enabled by default. However, it can be disabled entirely from the kernel command line if necessary. Next is support for a platform firmware interface based on ACPI operation regions used by the PMIC (Power Management Integrated Circuit) chips on the Intel Baytrail-T and Baytrail-T-CR platforms. That interface is used for manipulating power resources and for thermal management: sensor temperature reporting, trip point setting and so on. Also the ACPI core is now going to support the _DEP configuration information in a limited way. Basically, _DEP it supposed to reflect off-the-hierarchy dependencies between devices which may be very indirect, like when AML for one device accesses locations in an operation region handled by another device's driver (usually, the device depended on this way is a serial bus or GPIO controller). The support added this time is sufficient to make the ACPI battery driver work on Asus T100A, but it is general enough to be able to cover some other use cases in the future. Finally, we have a new cpufreq driver for the Loongson1B processor. In addition to the above, there are fixes and cleanups all over the place as usual and a traditional ACPICA update to a recent upstream release. As far as the fixes go, the ACPI LPSS (Low-power Subsystem) driver for Intel platforms should be able to handle power management of the DMA engine correctly, the cpufreq-dt driver should interact with the thermal subsystem in a better way and the ACPI backlight driver should handle some more corner cases, among other things. On top of the ACPICA update there are fixes for race conditions in the ACPICA's interrupt handling code which might lead to some random and strange looking failures on some systems. In the cleanups department the most visible part is the series of commits targeted at getting rid of the CONFIG_PM_RUNTIME configuration option. That was triggered by a discussion regarding the generic power domains code during which we realized that trying to support certain combinations of PM config options was painful and not really worth it, because nobody would use them in production anyway. For this reason, we decided to make CONFIG_PM_SLEEP select CONFIG_PM_RUNTIME and that lead to the conclusion that the latter became redundant and CONFIG_PM could be used instead of it. The material here makes that replacement in a major part of the tree, but there will be at least one more batch of that in the second part of the merge window. Specifics: - Support for retrieving device properties information from ACPI _DSD device configuration objects and a unified device properties interface for device drivers (and subsystems) on top of that. As stated above, this works with Device Trees and ACPI and allows device drivers to be written in a platform firmware (DT or ACPI) agnostic way. The at25, leds-gpio and gpio_keys_polled drivers are now going to use this new interface and the GPIO subsystem is additionally modified to allow device drivers to assign names to GPIO resources returned by ACPI _CRS objects (in case _DSD is not present or does not provide the expected data). The changes in this set are mostly from Mika Westerberg, Rafael J Wysocki, Aaron Lu, and Darren Hart with some fixes from others (Fabio Estevam, Geert Uytterhoeven). - Support for Hardware Managed Performance States (HWP) as described in Volume 3, section 14.4, of the Intel SDM in the intel_pstate driver. CPUID is used to detect whether or not the feature is supported by the processor. If supported, it will be enabled automatically unless the intel_pstate=no_hwp switch is present in the kernel command line. From Dirk Brandewie. - New Intel Broadwell-H ID for intel_pstate (Dirk Brandewie). - Support for firmware interface based on ACPI operation regions used by the PMIC chips on the Intel Baytrail-T and Baytrail-T-CR platforms for power resource control and thermal management (Aaron Lu). - Limited support for retrieving off-the-hierarchy dependencies between devices from ACPI _DEP device configuration objects and deferred probing support for the ACPI battery driver based on the _DEP information to make that driver work on Asus T100A (Lan Tianyu). - New cpufreq driver for the Loongson1B processor (Kelvin Cheung). - ACPICA update to upstream revision 20141107 which only affects tools (Bob Moore). - Fixes for race conditions in the ACPICA's interrupt handling code and in the ACPI code related to system suspend and resume (Lv Zheng and Rafael J Wysocki). - ACPI core fix for an RCU-related issue in the ioremap() regions management code that slowed down significantly after CPUs had been allowed to enter idle states even if they'd had RCU callbakcs queued and triggered some problems in certain proprietary graphics driver (and elsewhere). The fix replaces synchronize_rcu() in that code with synchronize_rcu_expedited() which makes the issue go away. From Konstantin Khlebnikov. - ACPI LPSS (Low-Power Subsystem) driver fix to handle power management of the DMA engine included into the LPSS correctly. The problem is that the DMA engine doesn't have ACPI PM support of its own and it simply is turned off when the last LPSS device having ACPI PM support goes into D3cold. To work around that, the PM domain used by the ACPI LPSS driver is redesigned so at least one device with ACPI PM support will be on as long as the DMA engine is in use. From Andy Shevchenko. - ACPI backlight driver fix to avoid using it on "Win8-compatible" systems where it doesn't work and where it was used by default by mistake (Aaron Lu). - Assorted minor ACPI core fixes and cleanups from Tomasz Nowicki, Sudeep Holla, Huang Rui, Hanjun Guo, Fabian Frederick, and Ashwin Chaugule (mostly related to the upcoming ARM64 support). - Intel RAPL (Running Average Power Limit) power capping driver fixes and improvements including new processor IDs (Jacob Pan). - Generic power domains modification to power up domains after attaching devices to them to meet the expectations of device drivers and bus types assuming devices to be accessible at probe time (Ulf Hansson). - Preliminary support for controlling device clocks from the generic power domains core code and modifications of the ARM/shmobile platform to use that feature (Ulf Hansson). - Assorted minor fixes and cleanups of the generic power domains core code (Ulf Hansson, Geert Uytterhoeven). - Assorted minor fixes and cleanups of the device clocks control code in the PM core (Geert Uytterhoeven, Grygorii Strashko). - Consolidation of device power management Kconfig options by making CONFIG_PM_SLEEP select CONFIG_PM_RUNTIME and removing the latter which is now redundant (Rafael J Wysocki and Kevin Hilman). That is the first batch of the changes needed for this purpose. - Core device runtime power management support code cleanup related to the execution of callbacks (Andrzej Hajda). - cpuidle ARM support improvements (Lorenzo Pieralisi). - cpuidle cleanup related to the CPUIDLE_FLAG_TIME_VALID flag and a new MAINTAINERS entry for ARM Exynos cpuidle (Daniel Lezcano and Bartlomiej Zolnierkiewicz). - New cpufreq driver callback (->ready) to be executed when the cpufreq core is ready to use a given policy object and cpufreq-dt driver modification to use that callback for cooling device registration (Viresh Kumar). - cpufreq core fixes and cleanups (Viresh Kumar, Vince Hsu, James Geboski, Tomeu Vizoso). - Assorted fixes and cleanups in the cpufreq-pcc, intel_pstate, cpufreq-dt, pxa2xx cpufreq drivers (Lenny Szubowicz, Ethan Zhao, Stefan Wahren, Petr Cvek). - OPP (Operating Performance Points) framework modification to allow OPPs to be removed too and update of a few cpufreq drivers (cpufreq-dt, exynos5440, imx6q, cpufreq) to remove OPPs (added during initialization) on driver removal (Viresh Kumar). - Hibernation core fixes and cleanups (Tina Ruchandani and Markus Elfring). - PM Kconfig fix related to CPU power management (Pankaj Dubey). - cpupower tool fix (Prarit Bhargava)" * tag 'pm+acpi-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (120 commits) i2c-omap / PM: Drop CONFIG_PM_RUNTIME from i2c-omap.c dmaengine / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM tools: cpupower: fix return checks for sysfs_get_idlestate_count() drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM e1000e / igb / PM: Eliminate CONFIG_PM_RUNTIME MMC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM MFD / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM media / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM input / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM leds: leds-gpio: Fix multiple instances registration without 'label' property iio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM hsi / OMAP / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM i2c-hid / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM drm / exynos / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM gpio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM hwrandom / exynos / PM: Use CONFIG_PM in #ifdef block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM USB / PM: Drop CONFIG_PM_RUNTIME from the USB core PM: Merge the SET*_RUNTIME_PM_OPS() macros ...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI changes from Bjorn Helgaas: "Here are the PCI changes intended for v3.19. I don't think there's anything very exciting here, but there was a lot of MSI-related stuff coming via Thomas. Details: NUMA - Allow numa_node override via sysfs (Prarit Bhargava) Resource management - Restore detection of read-only BARs (Myron Stowe) - Shrink decoding-disabled window while sizing BARs (Myron Stowe) - Add informational printk for invalid BARs (Myron Stowe) - Remove fixed parameter in pci_iov_resource_bar() (Myron Stowe) MSI - Add pci_msi_ignore_mask to prevent writes to MSI/MSI-X Mask Bits (Yijing Wang) - Revert "PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()" (Yijing Wang) - s390/MSI: Use __msi_mask_irq() instead of default_msi_mask_irq() (Yijing Wang) Virtualization - xen: Process failure for pcifront_(re)scan_root() (Chen Gang) - Make FLR and AF FLR reset warning messages different (Gavin Shan) Generic host bridge driver - Allocate config space windows after limiting bus number range (Lorenzo Pieralisi) - Convert to DT resource parsing API (Lorenzo Pieralisi) Freescale Layerscape - Add Freescale Layerscape PCIe driver (Minghuan Lian) NVIDIA Tegra - Do not build on 64-bit ARM (Thierry Reding) - Add Kconfig help text (Thierry Reding) Renesas R-Car - Make rcar_pci static (Jingoo Han) Samsung Exynos - Add exynos prefix to add_pcie_port(), pcie_init() (Jingoo Han) ST Microelectronics SPEAr13xx - Add spear prefix to add_pcie_port(), pcie_init() (Jingoo Han) - Make spear13xx_add_pcie_port() __init (Jingoo Han) - Remove unnecessary OOM message (Jingoo Han) TI DRA7xx - Add dra7xx prefix to add_pcie_port() (Jingoo Han) - Make dra7xx_add_pcie_port() __init (Jingoo Han) TI Keystone - Make ks_dw_pcie_msi_domain_ops static (Jingoo Han) - Remove unnecessary OOM message (Jingoo Han) Miscellaneous - Delete unnecessary NULL pointer checks (Markus Elfring) - Remove unused to_hotplug_slot() (Gavin Shan) - Whitespace cleanup (Jingoo Han) - Simplify if-return sequences (Quentin Lambert)" * tag 'pci-v3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (28 commits) PCI: Remove fixed parameter in pci_iov_resource_bar() PCI: Add informational printk for invalid BARs PCI: tegra: Add Kconfig help text PCI: tegra: Do not build on 64-bit ARM PCI: spear: Remove unnecessary OOM message PCI: mvebu: Add a blank line after declarations PCI: designware: Add a blank line after declarations PCI: exynos: Remove unnecessary return statement PCI: imx6: Use tabs for indentation PCI: keystone: Remove unnecessary OOM message PCI: Remove unused and broken to_hotplug_slot() PCI: Make FLR and AF FLR reset warning messages different PCI: dra7xx: Add __init annotation to dra7xx_add_pcie_port() PCI: spear: Add __init annotation to spear13xx_add_pcie_port() PCI: spear: Rename add_pcie_port(), pcie_init() to spear13xx_add_pcie_port(), etc. PCI: dra7xx: Rename add_pcie_port() to dra7xx_add_pcie_port() PCI: layerscape: Add Freescale Layerscape PCIe driver PCI: Simplify if-return sequences PCI: Delete unnecessary NULL pointer checks PCI: Shrink decoding-disabled window while sizing BARs ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktestLinus Torvalds authored
Pull ktest changes from Steven Rostedt: "The following ktest updates were done: - Fix handling the make kernelrelease change - Fix make_min_config that was broken by new bisect_config changes - Allow tests to undefine default options (not just being able to override them) - Print name of test (if defined) to start of test output" * tag 'ktest-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Add back "tail -1" to kernelrelease make ktest: Add name to running title ktest: Allow tests to undefine default options ktest: Fix make_min_config to handle new assign_configs call ktest: Use make -s kernelrelease
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David S. Miller authored
Fugang Duan says: ==================== net: fec: driver code clean and bug fix The patch serial include code clean and bug fix: Patch#1: avoid dummy operation during suspend/resume test. Patch#2: bug fix for i.MX6SX SOC that clean all interrupt events during MAC initial process. Patch#3: before phy device link status is up, only enable MDIO bus interrupt. V2: - Modify the comment form from David's suggestion. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Nimrod Andy authored
Before phy device link up, we only enable FEC mdio interrupt, which is more reasonable. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nimrod Andy authored
For i.MX6SX FEC controller, there have interrupt mask and event field extension. To support all SOCs FEC, we clear all interrupt events during MAVC initial process. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nimrod Andy authored
On some i.MX6 serial boards, phy power and refrence clock are supplied or controlled by SOC. When do suspend/resume test, the power and clock are disabled, so phy device link down. For current driver, fep->link is still up status, which cause extra operation like below code. To avoid the dumy operation, we set fep->link to down when phy device is real down. ... if (fep->link) { napi_disable(&fep->napi); netif_tx_lock_bh(ndev); fec_stop(ndev); netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); fep->link = phy_dev->link; status_change = 1; } ... Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull nmi-safe seq_buf printk update from Steven Rostedt: "This code is a fork from the trace-3.19 pull as it needed the trace_seq clean ups from that branch. This code solves the issue of performing stack dumps from NMI context. The issue is that printk() is not safe from NMI context as if the NMI were to trigger when a printk() was being performed, the NMI could deadlock from the printk() internal locks. This has been seen in practice. With lots of review from Petr Mladek, this code went through several iterations, and we feel that it is now at a point of quality to be accepted into mainline. Here's what is contained in this patch set: - Creates a "seq_buf" generic buffer utility that allows a descriptor to be passed around where functions can write their own "printk()" formatted strings into it. The generic version was pulled out of the trace_seq() code that was made specifically for tracing. - The seq_buf code was change to model the seq_file code. I have a patch (not included for 3.19) that converts the seq_file.c code over to use seq_buf.c like the trace_seq.c code does. This was done to make sure that seq_buf.c is compatible with seq_file.c. I may try to get that patch in for 3.20. - The seq_buf.c file was moved to lib/ to remove it from being dependent on CONFIG_TRACING. - The printk() was updated to allow for a per_cpu "override" of the internal calls. That is, instead of writing to the console, a call to printk() may do something else. This made it easier to allow the NMI to change what printk() does in order to call dump_stack() without needing to update that code as well. - Finally, the dump_stack from all CPUs via NMI code was converted to use the seq_buf code. The caller to trigger the NMI code would wait till all the NMIs finished, and then it would print the seq_buf data to the console safely from a non NMI context One added bonus is that this code also makes the NMI dump stack work on PREEMPT_RT kernels. As printk() includes sleeping locks on PREEMPT_RT, printk() only writes to console if the console does not use any rt_mutex converted spin locks. Which a lot do" * tag 'trace-seq-buf-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: x86/nmi: Fix use of unallocated cpumask_var_t printk/percpu: Define printk_func when printk is not defined x86/nmi: Perform a safe NMI stack trace on all CPUs printk: Add per_cpu printk func to allow printk to be diverted seq_buf: Move the seq_buf code to lib/ seq-buf: Make seq_buf_bprintf() conditional on CONFIG_BINARY_PRINTF tracing: Add seq_buf_get_buf() and seq_buf_commit() helper functions tracing: Have seq_buf use full buffer seq_buf: Add seq_buf_can_fit() helper function tracing: Add paranoid size check in trace_printk_seq() tracing: Use trace_seq_used() and seq_buf_used() instead of len tracing: Clean up tracing_fill_pipe_page() seq_buf: Create seq_buf_used() to find out how much was written tracing: Add a seq_buf_clear() helper and clear len and readpos in init tracing: Convert seq_buf fields to be like seq_file fields tracing: Convert seq_buf_path() to be like seq_path() tracing: Create seq_buf layer in trace_seq
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Alexei Starovoitov authored
0day robot reported the following crash: [ 21.233581] BUG: unable to handle kernel NULL pointer dereference at 0000000000000007 [ 21.234709] IP: [<ffffffff8156ebda>] sk_attach_bpf+0x39/0xc2 It's due to bpf_prog_get() returning ERR_PTR. Check it properly. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Fixes: 89aa0758 ("net: sock: allow eBPF programs to be attached to sockets") Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull ftrace self-test updates from Steven Rostedt: "Updates for the ftrace self tests: - Added kprobes on ftrace testcase - Sort test cases - Add file to hold helper functions - Use logfile name supported by busybox's mktemp - Clear trace buffer after running kprobe test - Fix show descriptions when run on dash shell - Add --verbose option for showing echo output" * tag 'ftracetest-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftracetest: Add --verbose option for showing echo output ftracetest: Fix to show descriptions on dash ftracetest: Add basic event tracing test cases ftracetest: Clear trace buffer after running kprobe testcases ftracetest: Use logfile name supported by busybox's mktemp ftracetest: Add a couple of ftrace test cases ftracetest: Add functions file that holds helper functions ftracetest: Sort testcases ftracetest: Add kprobes on ftrace testcase
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