{"id":105081,"date":"2022-09-13T09:36:41","date_gmt":"2022-09-13T07:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/wd-razrabatyvaet-nvme-drajver-na-yazyke-rust-eksperimenty-s-rust-vo-freebsd"},"modified":"2022-09-13T09:36:41","modified_gmt":"2022-09-13T07:36:42","slug":"wd-razrabatyvaet-nvme-drajver-na-yazyke-rust-eksperimenty-s-rust-vo-freebsd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/wd-razrabatyvaet-nvme-drajver-na-yazyke-rust-eksperimenty-s-rust-vo-freebsd","title":{"rendered":"WD utvecklar en NVMe-drivrutin p\u00e5 Rust-spr\u00e5ket. Experiment med Rust i FreeBSD","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Under the ongoing Linux Plumbers Conference 2022, an engineer from Western Digital presented a report on the development of an experimental driver for SSDs with an NVM-Express (NVMe) interface, written in Rust and operating at the Linux kernel level. Although the project is still in its early stages, testing has shown that the performance of the Rust NVMe driver matches that of the existing NVMe driver in the kernel, which is written in C.
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The report states that the current NVMe driver in C fully satisfies the developers, but the NVMe subsystem serves as a good testing ground for assessing the feasibility of developing drivers in Rust, as it is simple enough, widely used, demands high performance, has a tested reference implementation for comparison, and supports various interfaces (dev, pci, dma, blk-mq, gendisk, sysfs). <\/p>\n
It is noted that the PCI NVMe driver in Rust already provides the necessary functionality for operation but is not yet ready for widespread use as it requires further enhancements. Future plans include eliminating existing unsafe blocks from the code, supporting device removal and driver unloading operations, adding sysfs interface support, implementing deferred initialization, creating a driver for blk-mq, and experimenting with using an asynchronous programming model for queue_rq.
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Additionally, it can be noted that experiments conducted by NCC Group aim to develop drivers in Rust for the FreeBSD kernel. As an example, a simple echo driver that returns data written to the file \/dev\/rustmodule is examined in detail. In the next phase of the experiments, NCC Group is considering the possibility of rewriting core components in Rust to enhance the security of network and file operations. <\/p>\n
Trots att m\u00f6jligheten att skapa enkla moduler p\u00e5 Rust-spr\u00e5ket visas, kommer en djupare integration av Rust i FreeBSD-k\u00e4rnan att kr\u00e4va ytterligare arbete. Till exempel n\u00e4mns behovet av att skapa ett set av abstraktionslager \u00f6ver subsystem och k\u00e4rnstrukturer, liknande till\u00e4gg som f\u00f6rberetts av projektet Rust for Linux. I framtiden planeras liknande experiment med Illumos-k\u00e4rnan och att identifiera gemensamma abstraktioner p\u00e5 Rust som kan anv\u00e4ndas i Rust-baserade drivrutiner f\u00f6r Linux, BSD och Illumos. <\/p>\n
Enligt Microsofts och Googles uppgifter orsakar cirka 70% av s\u00e5rbarheterna i deras programvaror os\u00e4kert minnesarbete. Det antas att anv\u00e4ndningen av Rust-spr\u00e5ket kan minska risken f\u00f6r s\u00e5rbarheter orsakade av os\u00e4ker minneshantering och eliminera fel som tillg\u00e5ng till minnesomr\u00e5den efter att de har frigjorts samt buffert\u00f6verskridningar. <\/p>\n
S\u00e4ker minneshantering s\u00e4kerst\u00e4lls i Rust vid kompilering genom kontroll av referenser, sp\u00e5rning av \u00e4gande av objekt och beaktande av objektens livstid (synlighet), samt genom utv\u00e4rdering av korrekt tillg\u00e5ng till minnet under kodens k\u00f6rning. Rust tillhandah\u00e5ller ocks\u00e5 verktyg f\u00f6r skydd mot heltals\u00f6verfl\u00f6den, kr\u00e4ver obligatorisk initialisering av variabelv\u00e4rden innan anv\u00e4ndning, hanterar fel b\u00e4ttre i standardbiblioteket, till\u00e4mpar konceptet av of\u00f6r\u00e4nderliga (immutable) referenser och variabler som standard och erbjuder stark statisk typning f\u00f6r att minimera logiska fel. \n K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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<\/center> ![\"WD](\"\/wp-content\/uploads\/2022\/09\/62fa18285c0eab993e911a5345e8e228.jpg\")
<\/center> <\/p>\n![\"Spela](\"https:\/\/img.youtube.com\/vi\/Xw9pKeJ-4Bw\/hqdefault.jpg\")
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