[LEDE-DEV] SUNXI: Network problem with kernel 4.9.51
Gerhard Bertelsmann
info at gerhard-bertelsmann.de
Tue Sep 26 02:25:57 PDT 2017
Hi Hauke,
Am 2017-09-25 22:10, schrieb Hauke Mehrtens:
> On 09/25/2017 08:47 AM, Gerhard Bertelsmann wrote:
>> Hi Hauke,
>>
>> Am 2017-09-25 00:14, schrieb Hauke Mehrtens:
>>> On 09/24/2017 04:39 PM, Hauke Mehrtens wrote:
>>>> On 09/24/2017 12:27 AM, Lucian Cristian wrote:
>>>>> On 23.09.2017 19:03, Gerhard Bertelsmann wrote:
>>>>>> Hi Zoltan,
>>>>>>
>>>>>> Am 2017-09-23 17:36, schrieb Zoltan HERPAI:
>>>>>>> Hi Gerhard,
>>>>>>>
>>>>>>> On Sat, 23 Sep 2017, Gerhard Bertelsmann wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I'm trying Lede HEAD with a BananaPI (SUNXI7 A20) and have an
>>>>>>>> issue
>>>>>>>> with the network connection:
>>>>>>>>
>>>>>>>> root at Modellbahn-BPi:/# ping -qc 100 192.168.0.9
>>>>>>>> PING 192.168.0.9 (192.168.0.9): 56 data bytes
>>>>>>> [snip]
>>>>>>>
>>>>>>>> Does anybody have a clue why this happens ?
>>>>>>>
>>>>>>> Can you please post a full dmesg.
>>>>>>
>>>>>> yes, of course:
>>>>>>
>>>>>> root at Modellbahn-BPi:~# dmesg
>>>>>> [ 0.000000] Booting Linux on physical CPU 0x0
>>>> .......
>>>>>>
>>>>>> root at Modellbahn-BPi:~# ping -qc 100 192.168.0.9
>>>>>> PING 192.168.0.9 (192.168.0.9): 56 data bytes
>>>>>>
>>>>>> --- 192.168.0.9 ping statistics ---
>>>>>> 100 packets transmitted, 94 packets received, 6% packet loss
>>>>>> round-trip min/avg/max = 0.354/0.518/1.182 ms
>>>>>>
>>>>>> root at Modellbahn-BPi:~# ip -s -d link show eth0
>>>>>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel
>>>>>> master br-lan state UP mode DEFAULT group default qlen 1000
>>>>>> link/ether 02:03:0a:43:06:44 brd ff:ff:ff:ff:ff:ff promiscuity
>>>>>> 1
>>>>>> bridge_slave state forwarding priority 32 cost 4 hairpin off
>>>>>> guard
>>>>>> off root_block off fastleave off learning on flood on port_id
>>>>>> 0x8001
>>>>>> port_no 0x1 designated_port 32769
>>>>>> RX: bytes packets errors dropped overrun mcast
>>>>>> 88003 560 0 9 0 0
>>>>>> TX: bytes packets errors dropped carrier collsns
>>>>>> 20196 210 0 0 0 0
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Gerd
>>>>>>
>>>>>> _______________________________________________
>>>>>> Lede-dev mailing list
>>>>>> Lede-dev at lists.infradead.org
>>>>>> http://lists.infradead.org/mailman/listinfo/lede-dev
>>>>>
>>>>> I don't have packet loss but I have slow upload (A20 Olimex Lime2)
>>>>> but
>>>>> maybe is the uboot bug found on the internet if is not already in
>>>>> the
>>>>> uboot mainline, if I increase the number of parallel connection the
>>>>> speed goes up to 200Mb/s
>>>>>
>>>>> UP:
>>>>>
>>>>> [ ID] Interval Transfer Bandwidth Retr Cwnd
>>>>> [ 4] 0.00-1.00 sec 2.18 MBytes 18.2 Mbits/sec 148 7.03
>>>>> KBytes
>>>>> [ 4] 1.00-2.00 sec 4.73 MBytes 39.7 Mbits/sec 317 4.22
>>>>> KBytes
>>>>> [ 4] 2.00-3.00 sec 4.38 MBytes 36.7 Mbits/sec 294 4.22
>>>>> KBytes
>>>>> [ 4] 3.00-4.00 sec 4.92 MBytes 41.2 Mbits/sec 344 2.81
>>>>> KBytes
>>>>> [ 4] 4.00-5.00 sec 3.01 MBytes 25.3 Mbits/sec 210 12.7
>>>>> KBytes
>>>>> [ 4] 5.00-6.00 sec 7.56 MBytes 63.4 Mbits/sec 503 2.81
>>>>> KBytes
>>>>> [ 4] 6.00-7.00 sec 3.13 MBytes 26.2 Mbits/sec 216 1.41
>>>>> KBytes
>>>>> [ 4] 7.00-8.00 sec 665 KBytes 5.45 Mbits/sec 58 2.81
>>>>> KBytes
>>>>> [ 4] 8.00-9.00 sec 7.97 MBytes 66.9 Mbits/sec 554 7.03
>>>>> KBytes
>>>>> [ 4] 9.00-10.00 sec 1.42 MBytes 11.9 Mbits/sec 137 2.81
>>>>> KBytes
>>>>> - - - - - - - - - - - - - - - - - - - - - - - - -
>>>>> [ ID] Interval Transfer Bandwidth Retr
>>>>> [ 4] 0.00-10.00 sec 39.9 MBytes 33.5 Mbits/sec
>>>>> 2781
>>>>> sender
>>>>> [ 4] 0.00-10.00 sec 39.6 MBytes 33.2
>>>>> Mbits/sec
>>>>> receiver
>>>>>
>>>>> DOWN:
>>>>>
>>>>> [ ID] Interval Transfer Bandwidth
>>>>> [ 4] 0.00-1.00 sec 55.2 MBytes 463 Mbits/sec
>>>>> [ 4] 1.00-2.00 sec 58.4 MBytes 490 Mbits/sec
>>>>> [ 4] 2.00-3.00 sec 55.3 MBytes 464 Mbits/sec
>>>>> [ 4] 3.00-4.00 sec 55.4 MBytes 465 Mbits/sec
>>>>> [ 4] 4.00-5.00 sec 55.8 MBytes 468 Mbits/sec
>>>>> [ 4] 5.00-6.00 sec 56.1 MBytes 471 Mbits/sec
>>>>> [ 4] 6.00-7.00 sec 55.1 MBytes 463 Mbits/sec
>>>>> [ 4] 7.00-8.00 sec 55.6 MBytes 466 Mbits/sec
>>>>> [ 4] 8.00-9.00 sec 55.3 MBytes 464 Mbits/sec
>>>>> [ 4] 9.00-10.00 sec 55.4 MBytes 465 Mbits/sec
>>>>> - - - - - - - - - - - - - - - - - - - - - - - - -
>>>>> [ ID] Interval Transfer Bandwidth Retr
>>>>> [ 4] 0.00-10.00 sec 559 MBytes 469 Mbits/sec 0
>>>>> sender
>>>>> [ 4] 0.00-10.00 sec 559 MBytes 469
>>>>> Mbits/sec
>>>>> receiver
>>>>
>>>> Hi,
>>>>
>>>> I think the U-Boot should not influence this.
>>>>
>>>> @Gred could you please remove all the patches from
>>>> target/linux/sunxi/patches-4.9/ and test with such an image and then
>>>> report back your results please? It could be that something when
>>>> wrong
>>>> when I backported some clock patches.
>>>>
>>>> Hauke
>>>
>>> Hi Gerd,
>>>
>>> Could you please also test in addition my sunxi feature branch here:
>>> https://git.lede-project.org/?p=lede/hauke/staging.git;a=shortlog;h=refs/heads/sunxi
>>>
>>>
>>> It contains an updated version of the stmmac driver, I did this
>>> mostly
>>> to add support for the A64, but it could also fix your problems.
>>>
>>> Hauke
>>
>> thanks for your assistance.
>>
>> I've tested both versions, stock Lede HEAD without patches and your
>> git.
>> Both showing the same problem with packet lost and poor upload
>> bandwidth.
>>
>>
>> Regards
>>
>> Gerd
>
> Ok they I can probably not help any more, this looks more like a bug in
> the upstream kernel introduced between kernel 4.4 and 4.9. It probably
> makes sense to talk directly to the Linux stmmac maintainers about this
> problem.
>
> Hauke
IMHO Cristian mentioned it already, there seems to some magic in the old
Uboot versions aka CONFIG_GMAC_TX_DELAY.
I adapted
https://groups.google.com/forum/#!msg/linux-sunxi/Y_Zh5juEJG4/egjJojeTgS8J
and received much better results:
U-Boot 2017.07 (Sep 24 2017 - 14:28:28 +0000) Allwinner Technology
CPU: Allwinner A20 (SUN7I)
Model: LeMaker Banana Pi
I2C: ready
DRAM: 1 GiB
MMC: SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment
=> md.l 0x1c20164 1
01c20164: 00000000 ....
=> mw.l 0x1c20164 0xc06 1
=> boot
...
root at LEDE:~# uname -a
Linux LEDE 4.9.51 #0 SMP PREEMPT Sun Sep 24 14:28:28 2017 armv7l
GNU/Linux
root at LEDE:~# ping -qc 100 192.168.0.9
PING 192.168.0.9 (192.168.0.9): 56 data bytes
--- 192.168.0.9 ping statistics ---
100 packets transmitted, 100 packets received, 0% packet loss
round-trip min/avg/max = 0.363/0.514/0.813 ms
root at LEDE:~# iperf -c 192.168.0.9 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.0.9, TCP port 5001
TCP window size: 87.5 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.0.159 port 54946 connected with 192.168.0.9 port
5001
[ 4] local 192.168.0.159 port 5001 connected with 192.168.0.9 port
52498
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-10.0 sec 695 MBytes 583 Mbits/sec
[ 4] 0.0-10.0 sec 330 MBytes 276 Mbits/sec
I'm not an Uboot expert, maybe somebody else could migrate
this parameter from the old Uboot to the new one.
Regards
Gerd
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