netdev - Re: [PATCH net-next 4/5] mlxsw: spectrum_qdisc: Support offloading of FIFO Qdisc

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Message-ID: <20200305092658.GD2190@nanopsycho>
Date:   Thu, 5 Mar 2020 10:26:58 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Ido Schimmel <idosch@...sch.org>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        jiri@...lanox.com, petrm@...lanox.com, jhs@...atatu.com,
        xiyou.wangcong@...il.com, mlxsw@...lanox.com,
        Ido Schimmel <idosch@...lanox.com>
Subject: Re: [PATCH net-next 4/5] mlxsw: spectrum_qdisc: Support offloading
 of FIFO Qdisc

Thu, Mar 05, 2020 at 08:16:43AM CET, idosch@...sch.org wrote:
>From: Petr Machata <petrm@...lanox.com>
>
>There are two peculiarities about offloading FIFO:
>
>- sometimes the qdisc has an unspecified handle (it is "invisible")
>- it may be created before the qdisc that it will be a child of
>
>These features make the offload a bit more tricky. The approach chosen in
>this patch is to make note of all the FIFOs that needed to be rejected
>because their parents were not known. Later when the parent is created,
>they are offloaded
>
>FIFO is only offloaded for its counters, queue length is ignored.
>
>Signed-off-by: Petr Machata <petrm@...lanox.com>
>Signed-off-by: Ido Schimmel <idosch@...lanox.com>

Acked-by: Jiri Pirko <jiri@...lanox.com>