Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: debugging TXQs being empty
To:     Johannes Berg <johannes@sipsolutions.net>,
        Kan Yan <kyan@google.com>
Cc:     =?UTF-8?Q?Toke_H=c3=b8iland-J=c3=b8rgensen?= <toke@redhat.com>,
        linux-wireless <linux-wireless@vger.kernel.org>
References: <bbc516f28782175b27ac5e19dcdeac13cd6ee76a.camel@sipsolutions.net>
 <fd23a26dea59128ede8c1c4d02fb2f3514ffb5e9.camel@sipsolutions.net>
 <CA+iem5tjTpO_2MKL_pEu7enTa-8=g5vY3=2WJKjg9f=JA2eCEw@mail.gmail.com>
 <9b89b3b294295063aec045b9e863a44ad20b8782.camel@sipsolutions.net>
 <bf0cced86a1466285f74eb845e73fbaea1dff1c0.camel@sipsolutions.net>
 <9bcbab4b562669b96198c632f476b1b74956ca09.camel@sipsolutions.net>
 <336996e4-d9fe-bf3a-72fb-6919bd0adcbf@candelatech.com>
 <98682dcf98525b9b7db16c30f85628d5a2725eb9.camel@sipsolutions.net>
 <f4e526b1-3afd-9eee-8416-46f3e97fdb00@candelatech.com>
 <9cf0c2edcfa3ade4b53263b718b0dabf3d39e9f5.camel@sipsolutions.net>
From:   Ben Greear <greearb@candelatech.com>
Organization: Candela Technologies
Message-ID: <bd06b9c7-a8c7-7ec6-ab98-8f59deb807af@candelatech.com>
Date:   Tue, 10 Dec 2019 12:47:06 -0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.1.1
MIME-Version: 1.0
In-Reply-To: <9cf0c2edcfa3ade4b53263b718b0dabf3d39e9f5.camel@sipsolutions.net>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

On 12/9/19 11:37 AM, Johannes Berg wrote:
> On Mon, 2019-12-09 at 09:49 -0800, Ben Greear wrote:
>>
>> ommit 1416758748a12963b7dc619a54fb9cef4354fa2e
>> Author: Johannes Berg <johannes.berg@intel.com>
>> Date:   Wed Nov 20 12:26:39 2019 +0200
>>
>>       iwlwifi: pcie: fix support for transmitting SKBs with fraglist
> 
> OK.
> 
>> Please point me to the other one.
> 
> This one:
> 
> commit cb1a4badf59275eb7221dcec621e8154917eabd1 (tag: wireless-drivers-2019-11-14)
> Author: Mordechay Goodstein <mordechay.goodstein@intel.com>
> Date:   Thu Nov 7 13:51:47 2019 +0200
> 
>      iwlwifi: pcie: don't consider IV len in A-MSDU
> 
> but maybe it's included already?
> 
> I just tested (in conductive setup, open network) kernel 5.4, still see
> TP significantly lower than what I'd expect... But even in RX?

We added this patch and tested.  I don't think it changed much in our setup,
so maybe we were never hitting the bug for one reason or another.

We see about 675Mbps pktgen upload, and about 1Gbps download.  AP is
/AX and configured for 160Mhz, but AP does not actually transmit at
more than 80Mhz it seems.  I currently have no good way to see what MCS and BW
AX200 is transmitting at.

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com