netdev - Re: [patch net-next 0/5] mlxsw: Offload PRIO qdisc

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Message-ID: <0a4b6ad3-9e90-474c-4544-b34c55175495@mojatatu.com>
Date:   Fri, 12 Jan 2018 08:27:33 -0500
From:   Jamal Hadi Salim <jhs@...atatu.com>
To:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
Cc:     nogahf@...lanox.com, yuvalm@...lanox.com, davem@...emloft.net,
        idosch@...lanox.com, mlxsw@...lanox.com, xiyou.wangcong@...il.com
Subject: Re: [patch net-next 0/5] mlxsw: Offload PRIO qdisc

On 18-01-11 05:20 AM, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...lanox.com>
> 
> Add an offload support for PRIO qdisc for mlxsw driver.
> PRIO qdisc is being offloaded by using ndo_setup_tc. It has three
> commands, to set or tune the qdisc, to remove it and to get its stats.
> 
> Like RED offloading, offloading this qdisc is not enforced on the driver
> and determining its offload state is done in the dump action, when the
> stats are being updated.
> In the driver, offloading of PRIO is supported as root qdisc only. It
> supports only priorities 0-7 (the range that is used by the current static
> mapping of DSCP to skb prio and by 1:1 PCP values mapping) and up to 8
> bands.
> 
> Patches 1-2 offload DSCP to priority mapping in the mlxsw_sp driver.
> Patch 3 adds offload support for PRIO qdisc.
> Patches 4-5 Add PRIO offload support in the mlxsw_sp driver.

Strictly DSCP or 802.1p as well?

cheers,
jamal