netdev - Re: net: tso: add UDP segmentation support: adds regression for ax200 upload

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Message-ID: <CANn89i++Kgkj57ms70a5GDOQ-Cpewx3NQkzP3EmZmLYQ4eHzww@mail.gmail.com>
Date:   Thu, 17 Dec 2020 19:20:42 +0100
From:   Eric Dumazet <edumazet@...gle.com>
To:     Ben Greear <greearb@...delatech.com>
Cc:     netdev <netdev@...r.kernel.org>
Subject: Re: net: tso: add UDP segmentation support: adds regression for ax200 upload

On Thu, Dec 17, 2020 at 7:13 PM Ben Greear <greearb@...delatech.com> wrote:
>

>
> It is the iwlwifi/mvm logic that supports ax200.

Let me ask again :

I see two different potential call points :

drivers/net/wireless/intel/iwlwifi/pcie/tx.c:1529:
tso_build_hdr(skb, hdr_page->pos, &tso, data_left, !total_len);
drivers/net/wireless/intel/iwlwifi/queue/tx.c:427:
tso_build_hdr(skb, hdr_page->pos, &tso, data_left, !total_len);

To the best of your knowledge, which one would be used in your case ?

Both are horribly complex, I do not want to spend time studying two
implementations.

Thanks.