Re: [PATCH v3 4/4] rt2800: fix registers init for MT7620

From: Tom Psyborg <pozega.tomislav@gmail.com>
To: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Daniel Golle <daniel@makrotopia.org>,
	linux-wireless@vger.kernel.org, Mathias Kresin <dev@kresin.me>,
	Felix Fietkau <nbd@nbd.name>
Subject: Re: [PATCH v3 4/4] rt2800: fix registers init for MT7620
Date: Thu, 11 Oct 2018 14:39:25 +0200	[thread overview]
Message-ID: <CAKR_QVJJJKgtip3386yM1EW+3UV8e=DvFf-qtmw7vRFggS1FHg@mail.gmail.com> (raw)
In-Reply-To: <20181011100524.GA20794@redhat.com>

so this is RX test where I assume your 7265 card is sending data. is
that HT20 or HT40 mode and do you get regression on TX too?

can you try same case 2 test but with registers set to:

TX_SW_CFG0, 0x00000401
TX_SW_CFG1, 0x000C0000
TX_SW_CFG2, 0x00000000 (or 0x000C0408)

did you ever notice any tx power difference between nexx fw and openwrt fw?

On 11/10/2018, Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> On Wed, Oct 10, 2018 at 10:03:12PM +0200, Tom Psyborg wrote:
>> ok, that is strange. do you see any performance differences without
>> TX_SW_CFG regs? iperf test is a good pointer.
>>
>> this was a problem on xiaomi mini with old DD trunk builds on 4.4
>> kernel and LEDE builds from last year. i ain't got no chance to try
>> this on 18.06. which device you tried this on? if ipa/ilna it might
>> make no difference
>
> No diffrence for me. I have nexx wt3020 8M.
>
> However I notice this set couse performance regression for me.
> When connecting to iwl 7265 . Without the set I have:
>
> root@LEDE:~# iperf3 -c 192.168.10.243
> Connecting to host 192.168.10.243, port 5201
> [  5] local 192.168.10.1 port 59304 connected to 192.168.10.243 port 5201
> [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
> [  5]   0.00-1.00   sec  5.37 MBytes  44.9 Mbits/sec    0    279 KBytes
>
> [  5]   1.00-2.00   sec  5.80 MBytes  48.8 Mbits/sec    0    494 KBytes
>
> [  5]   2.00-3.00   sec  6.03 MBytes  50.5 Mbits/sec    0    513 KBytes
>
> [  5]   3.00-4.01   sec  5.90 MBytes  49.2 Mbits/sec    0    513 KBytes
>
> [  5]   4.01-5.01   sec  5.90 MBytes  49.5 Mbits/sec    0    515 KBytes
>
> [  5]   5.01-6.00   sec  5.78 MBytes  48.9 Mbits/sec    0    515 KBytes
>
> [  5]   6.00-7.00   sec  5.66 MBytes  47.4 Mbits/sec    0    515 KBytes
>
> [  5]   7.00-8.00   sec  6.03 MBytes  50.6 Mbits/sec    0    515 KBytes
>
> [  5]   8.00-9.00   sec  6.09 MBytes  50.9 Mbits/sec    0    515 KBytes
>
> [  5]   9.00-10.00  sec  5.72 MBytes  48.2 Mbits/sec    0    515 KBytes
>
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval           Transfer     Bitrate         Retr
> [  5]   0.00-10.00  sec  58.3 MBytes  48.9 Mbits/sec    0
> sender
> [  5]   0.00-10.00  sec  58.3 MBytes  48.9 Mbits/sec
> receiver
>
> With the set I have:
>
> root@LEDE:~# iperf3  -c 192.168.10.243
> Connecting to host 192.168.10.243, port 5201
> [  5] local 192.168.10.1 port 45824 connected to 192.168.10.243 port 5201
> [ ID] Interval           Transfer     Bitrate         Retr  Cwnd
> [  5]   0.00-1.00   sec  3.78 MBytes  31.7 Mbits/sec    0    197 KBytes
> [  5]   1.00-2.00   sec  3.71 MBytes  31.0 Mbits/sec    0    369 KBytes
> [  5]   2.00-3.00   sec  3.51 MBytes  29.5 Mbits/sec    0    484 KBytes
> [  5]   3.00-4.00   sec  3.36 MBytes  28.1 Mbits/sec    0    519 KBytes
> [  5]   4.00-5.00   sec  4.10 MBytes  34.4 Mbits/sec    0    519 KBytes
> [  5]   5.00-6.00   sec  3.73 MBytes  31.2 Mbits/sec    0    519 KBytes
> [  5]   6.00-7.00   sec  4.29 MBytes  36.0 Mbits/sec    0    519 KBytes
> [  5]   7.00-8.00   sec  4.16 MBytes  34.9 Mbits/sec    0    519 KBytes
> [  5]   8.00-9.00   sec  4.35 MBytes  36.5 Mbits/sec    0    519 KBytes
> [  5]   9.00-10.00  sec  4.41 MBytes  37.0 Mbits/sec    0    519 KBytes
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval           Transfer     Bitrate         Retr
> [  5]   0.00-10.00  sec  39.4 MBytes  33.0 Mbits/sec    0
> sender
> [  5]   0.00-10.00  sec  39.4 MBytes  33.0 Mbits/sec
> receiver
>
>
> Stanislaw
>
>