linux-kernel - Re: [PATCH v2] nvme: allow use of cmb on v1.4 controllers

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:   Fri, 15 Jan 2021 07:32:18 +0100
From:   Klaus Jensen <its@...elevant.dk>
To:     linux-nvme@...ts.infradead.org
Cc:     Sagi Grimberg <sagi@...mberg.me>,
        Klaus Jensen <k.jensen@...sung.com>,
        linux-kernel@...r.kernel.org, Jens Axboe <axboe@...com>,
        Keith Busch <kbusch@...nel.org>, Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v2] nvme: allow use of cmb on v1.4 controllers

On Jan 15 07:30, Klaus Jensen wrote:
> From: Klaus Jensen <k.jensen@...sung.com>
> 
> Since NVMe v1.4 the Controller Memory Buffer must be explicitly enabled
> by the host.
> 

Sorry, messed up and missed adding the changes for v2.

v2:
  - Do not explicitly check the NVMe version, rely on the presence of
    the new register instead. (Christoph)
  - Use hi_lo_writeq. (Christoph, Keith)
  - Fix missing offset and use pci_bus_address(). (Keith)

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)