8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
What: /sys/module/xen_blkback/parameters/max_buffer_pages
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Date: March 2013
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KernelVersion: 3.11
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Contact: Roger Pau Monné <roger.pau@citrix.com>
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Description:
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Maximum number of free pages to keep in each block
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backend buffer.
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What: /sys/module/xen_blkback/parameters/max_persistent_grants
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Date: March 2013
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KernelVersion: 3.11
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Contact: Roger Pau Monné <roger.pau@citrix.com>
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Description:
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Maximum number of grants to map persistently in
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blkback. If the frontend tries to use more than
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max_persistent_grants, the LRU kicks in and starts
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removing 5% of max_persistent_grants every 100ms.
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What: /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds
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Date: August 2018
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KernelVersion: 4.19
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Contact: Roger Pau Monné <roger.pau@citrix.com>
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Description:
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How long a persistent grant is allowed to remain
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allocated without being in use. The time is in
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seconds, 0 means indefinitely long.
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The default is 60 seconds.
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What: /sys/module/xen_blkback/parameters/buffer_squeeze_duration_ms
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Date: December 2019
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KernelVersion: 5.6
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Contact: SeongJae Park <sjpark@amazon.de>
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Description:
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When memory pressure is reported to blkback this option
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controls the duration in milliseconds that blkback will not
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cache any page not backed by a grant mapping.
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The default is 10ms.
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What: /sys/module/xen_blkback/parameters/feature_persistent
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Date: September 2020
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KernelVersion: 5.10
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Contact: SeongJae Park <sjpark@amazon.de>
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Description:
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Whether to enable the persistent grants feature or not. Note
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that this option only takes effect on newly connected backends.
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The default is Y (enable).
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