netdev - Re: [PATCH v2 intel-net 0/2] ice: xsk: ZC changes

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Date:   Wed, 31 Aug 2022 13:11:30 -0700
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
        <intel-wired-lan@...ts.osuosl.org>
CC:     <netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
        <magnus.karlsson@...el.com>, <alasdair.mcwilliam@...look.com>
Subject: Re: [PATCH v2 intel-net 0/2] ice: xsk: ZC changes



On 8/30/2022 5:51 AM, Maciej Fijalkowski wrote:
> Hi,
> 
> this set consists of two fixes to issues that were either pointed out on
> indirectly (John was reviewing AF_XDP selftests that were testing ice's
> ZC support) mailing list or were directly reported by customers.
> 
> First patch allows user space to see done descriptor in CQ even after a
> single frame being transmitted and second patch removes the need for
> having HW rings sized to power of 2 number of descriptors when used
> against AF_XDP.
> 
> I also forgot to mention that due to the current Tx cleaning algorithm,
> 4k HW ring was broken and these two patches bring it back to life, so we
> kill two birds with one stone.

Hi Maciej,

This isn't applying to net-queue.

Thanks,
Tony