linux-kernel - Re: DMA Engine: Transfer From Userspace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200622092553.pvspklv5suu6rm7w@cwe-513-vol689.cern.ch>
Date:   Mon, 22 Jun 2020 11:25:53 +0200
From:   Federico Vaga <federico.vaga@...n.ch>
To:     Vinod Koul <vkoul@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>
CC:     <dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: DMA Engine: Transfer From Userspace

On Sat, Jun 20, 2020 at 12:47:16AM +0200, Federico Vaga wrote:
>Hello,
>
>is there the possibility of using a DMA engine channel from userspace?
>
>Something like:
>- configure DMA using ioctl() (or whatever configuration mechanism)
>- read() or write() to trigger the transfer

Let me add one more question related to my case. The dmatest module does not
perform tests on SLAVEs. why?

Thanks

>
>-- 
>Federico Vaga [CERN BE-CO-HT]
>
>