[LEDE-DEV] SUNXI: Network problem with kernel 4.9.51

[Hauke Mehrtens]

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