{"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\/it\/blog\/news\/wd-razrabatyvaet-nvme-drajver-na-yazyke-rust-eksperimenty-s-rust-vo-freebsd","title":{"rendered":"WD sta sviluppando un driver NVMe in Rust. Esperimenti con Rust su FreeBSD","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Durante la conferenza Linux Plumbers 2022 in corso, un ingegnere della Western Digital ha presentato una relazione sullo sviluppo di un driver sperimentale per unit\u00e0 SSD con interfaccia NVM-Express (NVMe), scritto in Rust e funzionante a livello del kernel Linux. Sebbene il progetto sia ancora nelle fasi iniziali di sviluppo, i test condotti hanno dimostrato che le prestazioni del driver NVMe in Rust sono equivalenti a quelle del driver NVMe esistente nel kernel, scritto in C.      <center><img decoding=\"async\" alt=\"WD sta sviluppando un driver NVMe in Rust. Esperimenti con Rust su FreeBSD\" src=\"\/wp-content\/uploads\/2022\/09\/0c49f6bb2485871524d0f0427f41ad4d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <center><img decoding=\"async\" alt=\"WD sta sviluppando un driver NVMe in Rust. Esperimenti con Rust su FreeBSD\" src=\"\/wp-content\/uploads\/2022\/09\/62fa18285c0eab993e911a5345e8e228.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Nella relazione si afferma che l'attuale driver NVMe in C soddisfa completamente gli sviluppatori, ma il sottosistema NVMe rappresenta una buona piattaforma per esplorare la fattibilit\u00e0 dello sviluppo di driver in Rust, poich\u00e9 \u00e8 relativamente semplice, ampiamente utilizzato, presenta requisiti di prestazioni elevati, ha una implementazione di riferimento collaudata per il confronto e supporta diverse interfacce (dev, pci, dma, blk-mq, gendisk, sysfs).     <\/p>\n<p>Si osserva che il driver PCI NVMe in Rust fornisce gi\u00e0 le funzionalit\u00e0 necessarie per il funzionamento, ma non \u00e8 ancora pronto per un utilizzo generalizzato, poich\u00e9 richiede ulteriori lavori. Tra i piani futuri \u00e8 prevista l'eliminazione delle sezioni di codice unsafe, il supporto per le operazioni di rimozione dell'unit\u00e0 e scaricamento del driver, il supporto per l'interfaccia sysfs, la realizzazione di una inizializzazione ritardata, la creazione di un driver per blk-mq e esperimenti sull'uso di un modello di programmazione asincrona per queue_rq.        <center>  <div class=\"youtube-placeholder\" data-id=\"Xw9pKeJ-4Bw\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/Xw9pKeJ-4Bw\/hqdefault.jpg\" alt=\"Guarda il video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div>  <\/center>    <\/p>\n<p>In aggiunta, si possono notare gli esperimenti condotti dalla NCC Group sullo sviluppo di driver in Rust per il kernel FreeBSD. Come esempio, viene esaminato in dettaglio un semplice driver echo, che restituisce i dati scritti nel file \/dev\/rustmodule. Nella fase successiva degli esperimenti, la NCC Group sta considerando la possibilit\u00e0 di riscrivere in Rust i componenti fondamentali del kernel per migliorare la sicurezza delle operazioni di rete e file.     <\/p>\n<p>Tuttavia, sebbene sia stata mostrata la possibilit\u00e0 di creare moduli semplici nel linguaggio Rust, una integrazione pi\u00f9 profonda di Rust nel kernel di FreeBSD richieder\u00e0 ulteriori lavori. Ad esempio, viene menzionata la necessit\u00e0 di creare un insieme di livelli di astrazione sopra i sottosistemi e le strutture del kernel, simili a quelle preparate dal progetto Rust for Linux. In futuro, si prevede di condurre esperimenti simili con il kernel di Illumos e di estrarre astrazioni comuni in Rust che potrebbero essere utilizzate nei driver scritti in Rust per Linux, BSD e Illumos.    <\/p>\n<p>Secondo le aziende Microsoft e Google, circa il 70% delle vulnerabilit\u00e0 nei loro prodotti software sono causate da operazioni non sicure con la memoria. Si ipotizza che l'uso del linguaggio Rust possa ridurre il rischio di vulnerabilit\u00e0 causate da operazioni non sicure con la memoria e prevenire errori come l'accesso a aree di memoria dopo che sono state liberate e l'overflow del buffer.     <\/p>\n<p>La gestione sicura della memoria in Rust \u00e8 garantita durante la compilazione attraverso il controllo dei riferimenti, il tracciamento della propriet\u00e0 degli oggetti e la gestione del tempo di vita degli oggetti (ambito di visibilit\u00e0), nonch\u00e9 attraverso la valutazione della correttezza dell'accesso alla memoria durante l'esecuzione del codice. Rust fornisce anche strumenti per proteggersi dai sovraccarichi interi, richiede l'inizializzazione obbligatoria dei valori delle variabili prima dell'uso, gestisce meglio gli errori nella libreria standard, applica il concetto di immutabilit\u00e0 (immutable) per riferimenti e variabili per impostazione predefinita e offre una forte tipizzazione statica per minimizzare gli errori logici.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57774\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430 \u043f\u0440\u043e\u0445\u043e\u0434\u044f\u0449\u0435\u0439 \u0432 \u044d\u0442\u0438 \u0434\u043d\u0438 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 Linux Plumbers 2022 \u0438\u043d\u0436\u0435\u043d\u0435\u0440 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Western Digital \u0432\u044b\u0441\u0442\u0443\u043f\u0438\u043b \u0441 \u0434\u043e\u043a\u043b\u0430\u0434\u043e\u043c \u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0434\u043b\u044f SSD-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439 \u0441 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u043c NVM-Express (NVMe), \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0435\u0433\u043e \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 Linux. \u041d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u043f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e\u043a\u0430 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0440\u0430\u043d\u043d\u0435\u043c \u044d\u0442\u0430\u043f\u0435 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f, \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u043d\u043d\u043e\u0435 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u043a\u0430\u0437\u0430\u043b\u043e, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c NVMe-\u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105082,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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