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  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, 20 May 2020 14:01:54 -0700
From:   Jakub Kicinski <>
To:     Igor Russkikh <>
Cc:     <>, "David S . Miller" <>,
        Mark Starovoytov <>,
        Dmitry Bezrukov <>
Subject: Re: [PATCH net-next 03/12] net: atlantic: changes for multi-TC

On Wed, 20 May 2020 16:47:25 +0300 Igor Russkikh wrote:
> From: Dmitry Bezrukov <>
> This patch contains the following changes:
> * add cfg->is_ptp (used for PTP enable/disable switch, which
>   is described in more details below);
> * add cfg->tc_mode (A1 supports 2 HW modes only);
> * setup queue to TC mapping based on TC mode on A2;
> * remove hw_tx_tc_mode_get / hw_rx_tc_mode_get hw_ops.
> In the first generation of our hardware (A1), a whole traffic class is
> consumed for PTP handling in FW (FW uses it to send the ptp data and to
> send back timestamps).
> Since this conflicts with QoS (user is unable to use the reserved TC2),
> we suggest using module param to give the user a choice: disabling PTP
> allows using all available TCs.

Is there really no way to get the config automatically chosen
when user sets up TCs or does SIOCSHWTSTAMP? It's fine to return
-EOPNOTSUPP when too many things are enabled, but user having to set
module parameters upfront is quite painful.

Powered by blists - more mailing lists