dokany
udmabuf
dokany | udmabuf | |
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14 | 3 | |
5,076 | 516 | |
0.8% | - | |
8.1 | 6.5 | |
about 2 months ago | 5 months ago | |
C | C | |
- | BSD 2-clause "Simplified" License |
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dokany
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Projected File System
It's not really the same though. A Projected File System copies the files from the backing store to somewhere on the local file system when requested and then performs IO normally on the local files.
For an actual implementation of userspace filesystems on Windows see dokany: https://github.com/dokan-dev/dokany
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Tutorial fo unlimited backup solution in these trying times with Backblaze, Raidrive and Dokany
Now that you are inside the Mirror folder with cmd, let’s start the Mirror function to attach a NAS or cloud folder as a local disk in order to get recognized by the BB client and be backed up. Write something like (read the dokany documentation for more details here): mirror.exe /r x:\ /l m , where x:\ should be the letter of the folder attached with Raidrive and m:\ the letter you want to assign to the new local disk.
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Ask HN: What are some good resources for learning about low level disk/file IO?
I lead a project that included shipping a filesystem driver and a virtual disk on Windows.
What I did to learn the lower-level APIs, and perform initial testing on the driver, was write a "mirror" drive. The user-mode code pointed to a folder on disk, the driver made a virtual disk drive, and all reads and writes in the virtual disk drive went to the mirror folder.
On Windows, you can implement something like that using Dokany, Dokan, or Winfsp. On linux, there's the Fuse API. On Mac, there's MacFUSE.
Even if you don't do a "mirror" drive, understanding the callbacks that libraries like Dokany, Dokan, Winfsp, and Fuse do helps you understand how IO happens in the driver. Many IO methods provided in popular languages provide abstractions above what the OS does. (For example, the Windows kernel has no concept of the "Stream" that's in your C# program. The "Stream"'s Position property is purely a construct within the .Net framework.)
https://dokan-dev.github.io/
https://github.com/dokan-dev/dokany
https://osxfuse.github.io/
Another place to start is the OS's documentation itself. For example, you can start with Window's CreateFileA function. This typically is what gets called "under the hood" in most programming languages when you open or create a file: https://learn.microsoft.com/en-us/windows/win32/api/fileapi/...
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Add USB connected phone as video source
You'll need this ressource installed in 1.X version to make it work : https://github.com/dokan-dev/dokany
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Cheapest Way to Backup 40TB to Backblaze
Potentially no need to buy any hardware https://github.com/dokan-dev/dokany/wiki/Use-Mirror-example
- using back blaze personal? backing up nas?
- Error when trying to unlock any vault
- User mode file system library for windows with FUSE Wrapper
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Cryptomator and Windows 11 - Experiences?
Yeah, I had an issue and had to downgrade the Dokan Library. I downloaded from here.
- ceph-dokan mount issues. Looking for the right place to ask questions.
udmabuf
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Petalinux <---> FPGA using DMA
I started off by using udmabuf to map regions of my memory to the userspace ensuring that there are no conflicts with the kernel and app.
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Petalinux and DMA with Xilinx SoC
Install the u-dma-buf kernel module to map a section of your virtual address space to be contiguous in your physical address space.
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[BEGINNER] How to send Ethernet packets from HPS to FPGA on Cyclone V ? (DMA)
Lastly, what I think would be the way - DMA so that the CPU doesn't really have to copy each and every packet into RAM - but I have no idea how to go about this, but I've seen some syscalls that shall be able to tell Linux to actually 'put' packets there (I really am a beginner, sorry guys, I'm trying my best tho!). And I've had a slight experience with u-dma-buf kernel module (https://github.com/ikwzm/udmabuf), which might be the place we wanna Linux to put packets to. Then, we'd give the FPGA the address of the buffer allocated by u-dma-buf and it would simply start the processing from there. Is that correct or am I missing something ?
What are some alternatives?
winfsp - Windows File System Proxy - FUSE for Windows
ZynqMP-FPGA-Linux - FPGA+SoC+Linux+Device Tree Overlay+FPGA Manager U-Boot&Linux Kernel&Debian11 Images (for Xilinx:Zynq Ultrascale+ MPSoC)
Cryptomator - Multi-platform transparent client-side encryption of your files in the cloud
tn40xx-driver - Linux driver for tn40xx from Tehuti Networks
reactos - A free Windows-compatible Operating System
xpadneo - Advanced Linux Driver for Xbox One Wireless Controller (shipped with Xbox One S)
fuse-overlayfs - FUSE implementation for overlayfs
linux-xlnx - The official Linux kernel from Xilinx
ifuse - A fuse filesystem to access the contents of iOS devices
fatx - Original Xbox FATX Filesystem Library, Python bindings, FUSE driver, and GUI explorer
kvm-guest-drivers-windows - Windows paravirtualized drivers for QEMU\KVM
r8125-esxi - Realtek RTL8125 driver for ESXi 6.7