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

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Message-ID: <CANn89iLZ9Y0fMk8X1a4=J7Xf2H=M0oLK_SekOLZypN+2-8a0yw@mail.gmail.com>
Date:   Tue, 19 Jan 2021 11:02:47 +0100
From:   Eric Dumazet <edumazet@...gle.com>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     Ben Greear <greearb@...delatech.com>,
        Rainer Suhm <automat@...teo.de>,
        Jakub Kicinski <kuba@...nel.org>,
        Luca Coelho <luciano.coelho@...el.com>,
        netdev <netdev@...r.kernel.org>, linux-wireless@...r.kernel.org,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: net: tso: add UDP segmentation support: adds regression for ax200 upload

On Tue, Jan 19, 2021 at 9:53 AM Johannes Berg <johannes@...solutions.net> wrote:
>
> Hi Eric, all,
>
> Sorry we've been so silent on this.
>
> > --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
> > +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
> > @@ -773,6 +773,7 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb,
> > unsigned int num_subframes,
> >
> >         next = skb_gso_segment(skb, netdev_flags);
> >         skb_shinfo(skb)->gso_size = mss;
> > +       skb_shinfo(skb)->gso_type = ipv4 ? SKB_GSO_TCPV4 : SKB_GSO_TCPV6;
> >         if (WARN_ON_ONCE(IS_ERR(next)))
> >                 return -EINVAL;
> >         else if (next)
> > @@ -795,6 +796,7 @@ iwl_mvm_tx_tso_segment(struct sk_buff *skb,
> > unsigned int num_subframes,
> >
> >                 if (tcp_payload_len > mss) {
> >                         skb_shinfo(tmp)->gso_size = mss;
> > +                       skb_shinfo(tmp)->gso_type = ipv4 ?
> > SKB_GSO_TCPV4 : SKB_GSO_TCPV6;
> >                 } else {
> >                         if (qos) {
> >                                 u8 *qc;
>
> This does fix the problems reported on iwlwifi, were you planning to
> submit it as a proper patch?

Sure, I will do, thanks !