netdev - Re: [PATCH 03/10 net-next] net/mlx5e: RX, Internal DMA mapping in page

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:   Wed, 16 Oct 2019 18:33:00 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Jonathan Lemon <jonathan.lemon@...il.com>
Cc:     <brouer@...hat.com>, <ilias.apalodimas@...aro.org>,
        <saeedm@...lanox.com>, <tariqt@...lanox.com>,
        <netdev@...r.kernel.org>, <kernel-team@...com>
Subject: Re: [PATCH 03/10 net-next] net/mlx5e: RX, Internal DMA mapping in
 page_pool

On Wed, 16 Oct 2019 15:50:21 -0700, Jonathan Lemon wrote:
> From: Tariq Toukan <tariqt@...lanox.com>
> 
> After RX page-cache is removed in previous patch, let the
> page_pool be responsible for the DMA mapping.
> 
> Issue: 1487631
> Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
> 
> Signed-off-by: Jonathan Lemon <jonathan.lemon@...il.com>

IIUC you'll need to add DMA syncs here, no? map/unmap has syncing as
side effect.