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2024-07-09dt-bindings: fsi: Document the IBM SBEFIFO engineEddie James1-0/+46
The SBEFIFO engine provides an interface to the POWER processor Self Boot Engine (SBE). Signed-off-by: Eddie James <[email protected]> Acked-by: Conor Dooley <[email protected]> Reviewed-by: Andrew Jeffery <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: fsi: p9-occ: Convert to json-schemaEddie James2-16/+40
Conver to json-schema for the OCC documentation. Also document the fact that the OCC "bridge" device will often have the hwmon node as a child. Signed-off-by: Eddie James <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: fsi: Document the IBM SCOM engineEddie James1-0/+37
The SCOM engine provides an interface to the POWER processor PIB (Pervasive Interconnect Bus). Signed-off-by: Eddie James <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: fsi: fsi2spi: Document SPI controller child nodesEddie James1-4/+32
The FSI2SPI bridge has several SPI controllers behind it, which should be documented. Also, therefore the node needs to specify address and size cells. Signed-off-by: Eddie James <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: interrupt-controller: convert fsl,ls-scfg-msi to yamlFrank Li2-30/+79
Convert device tree binding fsl,ls-scfg-msi to yaml format. Additional changes: - Include gic.h and use predefined macro in example. - Remove label in example. - Change node name to interrupt-controller in example. - Fix error in example. - ls1046a allow 4 irqs, other platform only 1 irq. - Add $ref: msi-controller.yaml - Add #msi-cells. Signed-off-by: Frank Li <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: soc: fsl: Convert q(b)man-* to yaml formatFrank Li9-514/+407
Convert qman, bman, qman-portals, bman-portals to yaml format. Additional Change for fsl,q(b)man-portal: - Only keep one example. - Add fsl,qman-channel-id property. - Use interrupt type macro. - Remove top level qman-portals@ff4200000 at example. Additional change for fsl,q(b)man: - Fixed example error. - Remove redundent part, only keep fsl,qman node. - Change memory-regions to memory-region. - fsl,q(b)man-portals is not required property Additional change for fsl,qman-fqd.yaml: - Fixed example error. - Only keep one example. - Ref to reserve-memory.yaml - Merge fsl,bman reserver memory part Signed-off-by: Frank Li <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: misc: fsl,qoriq-mc: convert to yaml formatFrank Li3-197/+188
Convert fsl,qoriq-mc from txt to yaml format. Addition changes: - Child node name allow 'ethernet'. - Use 32bit address in example. - Fixed missed ';' in example. - Allow dma-coherent. - Remove smmu, its part in example. - Change child node name as 'ethernet' Signed-off-by: Frank Li <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: drop stale Anson Huang from maintainersKrzysztof Kozlowski24-24/+52
Emails to Anson Huang bounce: Diagnostic-Code: smtp; 550 5.4.1 Recipient address rejected: Access denied. Add IMX platform maintainers for bindings which would become orphaned. Acked-by: Uwe Kleine-König <[email protected]> Reviewed-by: Fabio Estevam <[email protected]> Acked-by: Peng Fan <[email protected]> Acked-by: Wolfram Sang <[email protected]> # for I2C Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Mark Brown <[email protected]> Acked-by: Jonathan Cameron <[email protected]> # for IIO Acked-by: Andi Shyti <[email protected]> Acked-by: Abel Vesa <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09kbuild: verify dtoverlay files against schemaDmitry Baryshkov1-1/+8
Currently only the single part device trees are validated against DT schema. For the multipart DT files only the base DTB is validated. Extend the fdtoverlay commands to validate the resulting DTB file against schema. Signed-off-by: Dmitry Baryshkov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09dt-bindings: clock: drop obsolete stericsson,abx500.txtStanislav Jakubek1-20/+0
These bindings are already (better) described in mfd/stericsson,ab8500.yaml, drop these now obsolete bindings. Signed-off-by: Stanislav Jakubek <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/Zm7I2Zbq1JNPoEJp@standask-GA-A55M-S2HP Signed-off-by: Rob Herring (Arm) <[email protected]>
2024-07-09soundwire: intel_auxdevice: add cs42l43 codec to wake_capable_listBard Liao1-0/+1
cs42l43 has wake capability. Add it to the wake_capable_list. Signed-off-by: Bard Liao <[email protected]> Reviewed-by: Pierre-Louis Bossart <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>
2024-07-09tools/power turbostat: Fix typo in turbostat.8Patryk Wlazlyn1-1/+1
"After" was missing an "r", nothing to see here. Signed-off-by: Patryk Wlazlyn <[email protected]> Signed-off-by: Len Brown <[email protected]>
2024-07-09tools/power turbostat: Add perf added counter example to turbostat.8Patryk Wlazlyn1-0/+18
We had few lines about the feature, but without any complete examples. Signed-off-by: Patryk Wlazlyn <[email protected]> Signed-off-by: Len Brown <[email protected]>
2024-07-09tools/power turbostat: Fix formatting in turbostat.8Patryk Wlazlyn1-4/+4
We had an extra "+" at the beginning of some lines that look like a poorly formated patch. Signed-off-by: Patryk Wlazlyn <[email protected]> Signed-off-by: Len Brown <[email protected]>
2024-07-09Merge tag 'zynqmp-soc2-for-6.11' of https://github.com/Xilinx/linux-xlnx ↵Arnd Bergmann6-37/+152
into soc/drivers arm64: Xilinx SoC changes for 6.11 Timer - Fix u32 overflow issue in 32-bit width PWM mode. Event manager: - rename cpu_number1 to dummy_cpu_number Power: - Add cb event for subsystem restart - check return status of get_api_version() Firmware: - Move FIRMWARE_VERSION_MASK to xlnx-zynqmp.h * tag 'zynqmp-soc2-for-6.11' of https://github.com/Xilinx/linux-xlnx: drivers: soc: xilinx: check return status of get_api_version() firmware: xilinx: Move FIRMWARE_VERSION_MASK to xlnx-zynqmp.h soc: xilinx: Add cb event for subsystem restart soc: xilinx: rename cpu_number1 to dummy_cpu_number pwm: xilinx: Fix u32 overflow issue in 32-bit width PWM mode. Link: https://lore.kernel.org/r/CAHTX3dKMtqgNpkEvrw0p2w+SPN83Ai1_kzhefUGOO5rMkPaH_w@mail.gmail.com Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ti: omap: MAINTAINERS: move Benoît Cousson to CREDITSKrzysztof Kozlowski2-2/+5
Last email from Benoît Cousson was in 2014 [1], so remove him from maintainers of the TI OMAP platform. Stale maintainer entries hide information whether subsystem needs help, has a bus-factor or is even orphaned. Benoît Cousson, thank you for TI OMAP contributions and maintenance. [1] https://lore.kernel.org/all/?q=f%3Abcousson%40baylibre.com Acked-by: Benoît Cousson <[email protected]> Cc: Benoît Cousson <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: Paul Walmsley <[email protected]> Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09amazon: MAINTAINERS: change to odd fixes and Tsahee Zidenberg to CREDITSKrzysztof Kozlowski2-2/+5
Last email from Tsahee Zidenberg was in 2016 [1], so move Tsahee from Amazon platform maintainers to credits (thank you for your contributions and maintenance!). Stale maintainer entries hide information whether subsystem needs help, has a bus-factor or is even orphaned. The Amazon platform still has active maintainer - Antoine Tenart - however there was no maintenance activities coming from Antoine. All my patches from last 4 years related to Amazon remained unanswered - no acks, no picks - so document the actual not active status of the platform by changing it to Odd Fixes. [1] https://lore.kernel.org/all/?q=f%3Atsahee%40annapurnalabs.com Cc: Tsahee Zidenberg <[email protected]> Cc: Antoine Tenart <[email protected]> Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09MAINTAINERS: thead: add git treeDrew Fustini1-0/+2
Add git tree for T-Head device tree files and, in the future, drivers for the T-Head TH1520 SoC. Signed-off-by: Drew Fustini <[email protected]> Acked-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09Merge tag 'imx-soc-6.11' of ↵Arnd Bergmann1-1/+0
https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/arm i.MX SoC change for 6.11: - Remove redundant EDAC_SUPPORT selection from ARCH_LAYERSCAPE * tag 'imx-soc-6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: layerscape: remove redundant EDAC_SUPPORT selection Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes for the ADS7846 touchscreenLinus Walleij1-25/+15
Convert the Spitz to use software nodes to describe GPIOs for the ADS7846 touchscreen. As part of the conversion switch from the custom wait_for_sync() callback to defining hsync GPIO that can be used by the ads7846 driver to detect hsync. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes to describe LED GPIOsDmitry Torokhov1-21/+50
Convert Spitz to use software nodes for specifying GPIOs for the LEDs. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes to describe MMC GPIOsDmitry Torokhov5-30/+31
Convert Spitz to use software nodes for specifying GPIOs for the MMC. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes to describe LCD GPIOsDmitry Torokhov1-19/+19
Convert Spitz to use software nodes for specifying GPIOs for the LCD. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes to describe audio GPIOsDmitry Torokhov1-22/+44
Convert Spitz to use software nodes for specifying GPIOs for the audio chip. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Use software nodes to describe SPI CS linesLinus Walleij2-11/+11
Convert the Spitz to use software nodes for specifying SPI CS. Because the SPI core can figure out the number of chipselects from the number of GPIO handles specified in properties, setting "num-cs" property is no longer needed. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: Simplify instantiating SPI controllerDmitry Torokhov1-15/+9
platform_device_register_full() to instantiate SPI controller in one go instead of allocating it, creating a software node, and registering the platform device as separate steps. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: pxa/gumstix: convert vbus gpio to use software nodesDmitry Torokhov4-15/+16
Switch vbus gpios from using a custom GPIO lookup table to software properties using PROPERTY_ENTRY_GPIO() constructs which closely mimic device tree gpio properties. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: pxa: consolidate GPIO chip platform dataDmitry Torokhov3-13/+15
The platform data for the GPIO controllers for the boards using non-DT setup is the same between PXA25x (gumstix) and PXA27x (Spitz) devices. Move it into devices.c to consolidate code. It will help with conversion to software nodes/properties. Signed-off-by: Dmitry Torokhov <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09ARM: spitz: fix GPIO assignment for backlightDmitry Torokhov1-20/+10
GPIOs controlling backlight on Spitz and Akita are coming from GPIO expanders, not the pxa27xx-gpio block, correct it. Additionally GPIO lookup tables operate with pin numbers rather than legacy GPIO numbers, fix that as well. Use raw numbers instead of legacy GPIO names to avoid confusion. Fixes: ee0c8e494cc3 ("backlight: corgi: Convert to use GPIO descriptors") Reviewed-by: Linus Walleij <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09Merge tag 'tegra-for-6.11-arm-core' of ↵Arnd Bergmann1-18/+32
https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/arm ARM: tegra: Core changes for v6.11-rc1 Uses software nodes to describe rfkill instead of using a GPIO lookup table. * tag 'tegra-for-6.11-arm-core' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: paz00: Use software nodes to describe GPIOs for WiFi rfkill Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09tools/power turbostat: Extend --add option with perf countersPatryk Wlazlyn3-11/+557
User can now read perf counters using "--add perf/<device>/<event>". Other details work similarly to how --add works with MSRs. Signed-off-by: Patryk Wlazlyn <[email protected]> Signed-off-by: Len Brown <[email protected]>
2024-07-09tools/power turbostat: Group SMI counter with APERF and MPERFPatryk Wlazlyn1-355/+280
These three counters now are treated similar to other perf counters groups. This simplifies and gets rid of a lot of special cases for APERF and MPERF. Signed-off-by: Patryk Wlazlyn <[email protected]> Signed-off-by: Len Brown <[email protected]>
2024-07-09platform: cznic: turris-omnia-mcu: Depend on WATCHDOGMarek Behún1-0/+1
Add depend on WATCHDOG, otherwise modpost fails with ERROR: modpost: "watchdog_init_timeout" [drivers/platform/cznic/turris-omnia-mcu.ko] undefined! ERROR: modpost: "devm_watchdog_register_device" [drivers/platform/cznic/turris-omnia-mcu.ko] undefined! Fixes: ab89fb5fb92c ("platform: cznic: turris-omnia-mcu: Add support for MCU watchdog") Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ Signed-off-by: Marek Behún <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09platform: cznic: turris-omnia-mcu: Depend on OFMarek Behún1-0/+1
Add depend on OF, otherwise the compilation fails with error: no member named 'of_gpio_n_cells' in 'struct gpio_chip' error: no member named 'of_xlate' in 'struct gpio_chip' Fixes: dfa556e45ae9 ("platform: cznic: turris-omnia-mcu: Add support for MCU connected GPIOs") Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ Signed-off-by: Marek Behún <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2024-07-09net: phy: microchip: lan937x: add support for 100BaseTX PHYOleksij Rempel1-1/+125
Add support of 100BaseTX PHY build in to LAN9371 and LAN9372 switches. Signed-off-by: Oleksij Rempel <[email protected]> Reviewed-by: Florian Fainelli <[email protected]> Reviewed-by: Michal Kubiak <[email protected]> Acked-by: Arun Ramadoss <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
2024-07-09drm/panel: jd9365da: Break some CMDS into helper functionsCong Yang1-36/+53
These panels have some common cmds (e0h~e3h,80h), let's break them into helper functions. Signed-off-by: Cong Yang <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Reviewed-by: Douglas Anderson <[email protected]> Link: https://lore.kernel.org/r/20240704045017.2781991-4-yangcong5@huaqin.corp-partner.google.com Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20240704045017.2781991-4-yangcong5@huaqin.corp-partner.google.com
2024-07-09drm/panel: jd9365da: Support for Melfas lmfbx101117480 MIPI-DSI panelCong Yang1-0/+246
The Melfas lmfbx101117480 is a 10.1" WXGA TFT-LCD panel, use jd9365da controller, which fits in nicely with the existing panel-jadard-jd9365da-h3 driver. Hence, we add a new compatible with panel specific config. Signed-off-by: Cong Yang <[email protected]> Acked-by: Linus Walleij <[email protected]> Reviewed-by: Douglas Anderson <[email protected]> Link: https://lore.kernel.org/r/20240704045017.2781991-3-yangcong5@huaqin.corp-partner.google.com Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20240704045017.2781991-3-yangcong5@huaqin.corp-partner.google.com
2024-07-09dt-bindings: display: panel: Add compatible for melfas lmfbx101117480Cong Yang1-0/+1
The Melfas lmfbx101117480 is a 10.1" WXGA TFT LCD panel with jadard-jd9365da controller. Hence, we add a new compatible with panel specific config. Signed-off-by: Cong Yang <[email protected]> Acked-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/20240704045017.2781991-2-yangcong5@huaqin.corp-partner.google.com Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20240704045017.2781991-2-yangcong5@huaqin.corp-partner.google.com
2024-07-09drm/panel: himax-hx8394: Add Support for Microchip AC40T08A MIPI Display PanelManikandan Muralidharan1-0/+151
Add support for the Microchip AC40T08A MIPI Display panel. This panel uses a Himax HX8394 display controller and requires a vendor provided init sequence. The display resolution is 720x1280@60Hz with width and height of 76mm and 132mm respectively. Signed-off-by: Manikandan Muralidharan <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2024-07-09drm/panel: himax-hx8394: switch to devm_gpiod_get_optional() for reset_gpioManikandan Muralidharan1-1/+1
Switch the driver to use devm_gpiod_get_optional() on reset_gpio to avoid driver probe issues when reset line is not specified. Signed-off-by: Manikandan Muralidharan <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2024-07-09dt-bindings: display: himax-hx8394: Add Microchip AC40T08A MIPI Display panelManikandan Muralidharan1-4/+13
Add compatible string for the Microchip's AC40T08A MIPI Display panel.This panel uses a Himax HX8394 display controller. The reset line is not populated and leads to driver probe issues, thus add conditional block to narrow reset-gpio property per variant. Signed-off-by: Manikandan Muralidharan <[email protected]> Reviewed-by: Conor Dooley <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2024-07-09vdpa/mlx5: Don't enable non-active VQs in .set_vq_ready()Dragos Tatulea1-0/+3
VQ indices in the range [cur_num_qps, max_vqs) represent queues that have not yet been activated. .set_vq_ready should not activate these VQs. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Don't reset VQs more than necessaryDragos Tatulea1-3/+27
The vdpa device can be reset many times in sequence without any significant state changes in between. Previously this was not a problem: VQs were torn down only on first reset. But after VQ pre-creation was introduced, each reset will delete and re-create the hardware VQs and their associated resources. To solve this problem, avoid resetting hardware VQs if the VQs are still in a blank state. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Re-create HW VQs under certain conditionsDragos Tatulea2-0/+16
There are a few conditions under which the hardware VQs need a full teardown and setup: - VQ size changed to something else than default value. Hardware VQ size modification is not supported. - User turns off certain device features: mergeable buffers, checksum virtio 1.0 compliance. In these cases, the TIR and RQT need to be re-created. Add a needs_teardown configuration variable and set it when detecting the above scenarios. On next DRIVER_OK, the resources will be torn down first. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Pre-create hardware VQs at vdpa .dev_add timeDragos Tatulea1-5/+32
Currently, hardware VQs are created right when the vdpa device gets into DRIVER_OK state. That is easier because most of the VQ state is known by then. This patch switches to creating all VQs and their associated resources at device creation time. The motivation is to reduce the vdpa device live migration downtime by moving the expensive operation of creating all the hardware VQs and their associated resources out of downtime on the destination VM. The VQs are now created in a blank state. The VQ configuration will happen later, on DRIVER_OK. Then the configuration will be applied when the VQs are moved to the Ready state. When .set_vq_ready() is called on a VQ before DRIVER_OK, special care is needed: now that the VQ is already created a resume_vq() will be triggered too early when no mr has been configured yet. Skip calling resume_vq() in this case, let it be handled during DRIVER_OK. For virtio-vdpa, the device configuration is done earlier during .vdpa_dev_add() by vdpa_register_device(). Avoid calling setup_vq_resources() a second time in that case. On a 64 CPU, 256 GB VM with 1 vDPA device of 16 VQps, the full VQ resource creation + resume time was ~370ms. Now it's down to 60 ms (only VQ config and resume). The measurements were done on a ConnectX6DX based vDPA device. Signed-off-by: Dragos Tatulea <[email protected]> Reviewed-by: Cosmin Ratiu <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Use suspend/resume during VQP changeDragos Tatulea1-3/+11
Resume a VQ if it is already created when the number of VQ pairs increases. This is done in preparation for VQ pre-creation which is coming in a later patch. It is necessary because calling setup_vq() on an already created VQ will return early and will not enable the queue. For symmetry, suspend a VQ instead of tearing it down when the number of VQ pairs decreases. But only if the resume operation is supported. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Forward error in suspend/resume deviceDragos Tatulea1-4/+8
Start using the suspend/resume_vq() error return codes previously added. Reviewed-by: Cosmin Ratiu <[email protected]> Reviewed-by: Zhu Yanjun <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Eugenio Pérez <[email protected]> Reviewed-by: Eugenio Pérez <[email protected]>
2024-07-09vdpa/mlx5: Consolidate all VQ modify to Ready to use resume_vq()Dragos Tatulea1-12/+6
There are a few more places modifying the VQ to Ready directly. Let's consolidate them into resume_vq(). The redundant warnings for resume_vq() errors can also be dropped. There is one special case that needs to be handled for virtio-vdpa: the initialized flag must be set to true earlier in setup_vq() so that resume_vq() doesn't return early. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Add error code for suspend/resume VQDragos Tatulea1-23/+54
Instead of blindly calling suspend/resume_vqs(), make then return error codes. To keep compatibility, keep suspending or resuming VQs on error and return the last error code. The assumption here is that the error code would be the same. Reviewed-by: Cosmin Ratiu <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Signed-off-by: Dragos Tatulea <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
2024-07-09vdpa/mlx5: Accept Init -> Ready VQ transition in resume_vq()Dragos Tatulea1-2/+22
Until now resume_vq() was used only for the suspend/resume scenario. This change also allows calling resume_vq() to bring it from Init to Ready state (VQ initialization). Signed-off-by: Dragos Tatulea <[email protected]> Reviewed-by: Cosmin Ratiu <[email protected]> Message-Id: <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> Acked-by: Eugenio Pérez <[email protected]> Acked-by: Eugenio Pérez <[email protected]>
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