From: hiro <23hiro@gmail.com>
To: 9front@9front.org
Subject: Re: [9front] [patch] ethervgbe: add rx checksum offloading
Date: Sun, 20 Nov 2022 13:44:54 +0100 [thread overview]
Message-ID: <CAFSF3XPh8HHM+3_j-6ArUinJByDLpbHscSp39FcUYA6-hhKZ1w@mail.gmail.com> (raw)
In-Reply-To: <C3661C96255559388B569EC7442AC25B@eigenstate.org>
my hunch is also that checksum offloading is not worth it, since we
don't have any kind of fastpath in our packet forwarding (we memcpy
every packet).
also, if we did more computationally intensive work on the packet
data, like aes encryption, i understand why somebody might want to use
accelerators for that part. but those checksums are dirt-cheap, on any
CPU.
On 11/19/22, ori@eigenstate.org <ori@eigenstate.org> wrote:
> Quoth Arne Meyer <meyer.arne83@netcologne.de>:
>> Is hw offloading something we want? I ask because I think there is
>> something wrong with ether8169 offloading and I'm working on a patch to
>> fix or axe this.
>>
>
> if it makes a real difference in performance and isn't too complex, it may
> be worth it, but I suspect software is more than fast enough for
> most of the cards we support.
>
>
next prev parent reply other threads:[~2022-11-20 12:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-11 16:13 Arne Meyer
2022-11-11 17:01 ` hiro
2022-11-11 17:35 ` Arne Meyer
2022-11-19 20:09 ` Arne Meyer
2022-11-19 21:36 ` ori
2022-11-20 12:44 ` hiro [this message]
2022-12-07 19:12 ` hiro
2022-12-08 1:41 ` cinap_lenrek
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