Hi, There are other user reporting same issue while using mainline kernel but using Ubuntu, so this is for sure not Distribution related. For me see the [0]. I hope someone would get time after 4.12 release to try fix this issue.
Regards, [0] http://forum.khadas.com/t/ubuntu-server-rom-linux-mainline-v170624-pre-alpha-version-emmc-installation/803/12 On Thu, Jun 15, 2017 at 4:40 PM, crow <c...@linux.org.ba> wrote: > Hi, > > On Sun, Jun 11, 2017 at 7:03 PM, crow <c...@linux.org.ba> wrote: >> Hi Andrew, >> >> On Sun, Jun 11, 2017 at 5:21 PM, Andrew Lunn <and...@lunn.ch> wrote: >>>> Thank your for the suggestion, and thanks Martin to explaining me over >>>> IRC what actually I should do. >>>> >>>> I recompiled mainline kernel 4.12-rc4 with the Amlogic driver: >>>> replaced drivers/net/phy/meson-gxl.c with >>>> https://github.com/khadas/linux/blob/ubuntu-4.9/drivers/amlogic/ethernet/phy/amlogic.c >>>> >>>> But this did not solve the issue. As soon as i start git clone i lose >>>> network connection to device (no session timeout/disconnect this time, >>>> but I am unable to reconnect over SSH or to get OK ping replay back). >>> >> >> 1) First problem reported I can't reproduce anymore, every reboot/cold >> boot with mainline kernel the Ethernet speed is detected as >> "100Mbps/Full" , but as seen in first post there was this issue. > > Once I did setup u-boot to have network in u-boot and did just an ping > to activate network. And after boot Ethernet was detected as 10Mbps. > But again was not able to reproduce it. I double check that I have 5E > cable. > > in u-boot Ethernet is detected as below > kvim#ping x.x.x.x > Speed: 100, full duplex > Using dwmac.c9410000 device > host x.x.x.x is alive > kvim# > > then I let ArchLinuxArm to boot and found out I can't connect to > device over SSH. Check over serial console and found: > > # dmesg | tail -n 10 > [ 8.334790] meson8b-dwmac c9410000.ethernet eth0: device MAC > address 00:15:18:01:81:31 > [ 8.436668] Meson GXL Internal PHY 0.e40908ff:08: attached PHY > driver [Meson GXL Internal PHY] (mii_bus:phy_addr=0.e40908ff:08, > irq=-1) > [ 8.535171] meson8b-dwmac c9410000.ethernet eth0: PTP not supported by HW > [ 10.225264] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = > wl0: Mar 1 2015 07:29:38 version 7.45.18 (r538002) FWID 01-6a2c8ad4 > [ 10.635703] meson8b-dwmac c9410000.ethernet eth0: Link is Up - > 10Mbps/Half - flow control off > # uname -a > Linux khadasvimpro 4.12.0-rc4-3-ARCH #1 SMP Thu Jun 8 00:17:20 CEST > 2017 aarch64 GNU/Linux > # > # mii-tool -vvv eth0 > Using SIOCGMIIPHY=0x8947 > eth0: no autonegotiation,, link ok > registers for MII PHY 8: > 1000 782d 0181 4400 01e1 0001 0005 2001 > ffff ffff ffff ffff ffff ffff ffff ffff > 0040 0002 40e8 5400 1c1c 0000 0000 aaaa > fff0 ffff 0000 000a 1407 0040 0000 105a > product info: vendor 00:60:51, model 0 rev 0 > basic mode: autonegotiation enabled > basic status: autonegotiation complete, link ok > capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > advertising: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > # > # ifconfig eth0 down && ifconfig eth0 up > [ 1972.596690] Meson GXL Internal PHY 0.e40908ff:08: attached PHY > driver [Meson GXL Internal PHY] (mii_bus:phy_addr=0.e40908ff:08, > irq=-1) > [ 1972.704156] meson8b-dwmac c9410000.ethernet eth0: PTP not supported by HW > [ 1974.795698] meson8b-dwmac c9410000.ethernet eth0: Link is Up - > 100Mbps/Full - flow control off > # > # mii-tool -vvv eth0 > Using SIOCGMIIPHY=0x8947 > eth0: negotiated 1000baseT-HD flow-control, link ok > registers for MII PHY 8: > 1000 782d 0181 4400 01e1 c1e1 000f 2001 > ffff ffff ffff ffff ffff ffff ffff ffff > 0040 0002 40e8 5400 1c1c 0000 0000 aaaa > fff0 ffff 0000 020a 1407 00ca 0000 105a > product info: vendor 00:60:51, model 0 rev 0 > basic mode: autonegotiation enabled > basic status: autonegotiation complete, link ok > capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > advertising: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > link partner: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD > 10baseT-FD 10baseT-HD > # > > 2) see below >> 2) see below >> >>> So this shows it is more than a PHY problem. The Ethernet MAC driver >>> is probably also part of the problem. >> >> There are some stmmac fixes [1] in soon to be rc5, compiled current >> master (without amlogic.c) with the fixes but for me the issue still >> persist. I will compile once released rc5 with amlogic.c and report >> back. >> >>> Are there any mainline kernels which work O.K? >> >> Khadas VIM support was added in 4.12-rc1. And I did test all four rc's >> but without success. > > I did test many Kernel builds but all test have failed when > downloading bigger files / doing git clone. > As Martin Blumenstingl suggested I start with first commit where > Khadas VIM support was added [0]. Then also Neil Armstrong suggested > [1]. Then all 4.12-rc1 - rc5. > Martin Blumenstingl have also found himself that: "I can reproduce the > Ethernet problem (tried downloading a 1GiB test file from leaseweb, > network got stuck after downloading ~70 MiB)". He suggested that I > should "play with the settings on your switch (disable jumbo frames, > etc.) to rule out the "exotic" stuff?". Well other device (x86_64) > connected on this same Switch port does not have any problem > downloading big files or doing git clone, as well as Khadas VIM with > Amlogic kernel. Also jumbo frames are not enabled, switch does have > only standard settings. > > I also get questioned which qdisc I use: > And it seems I am already using fq_codel (ArchLinuxArm uses systemd): > $ tc -s -p qdisc > qdisc noqueue 0: dev lo root refcnt 2 > Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) > backlog 0b 0p requeues 0 > qdisc mq 0: dev eth0 root > Sent 7382956 bytes 60703 pkt (dropped 0, overlimits 0 requeues 18) > backlog 0b 0p requeues 18 > qdisc fq_codel 0: dev eth0 parent :1 limit 10240p flows 1024 quantum > 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn > Sent 7382956 bytes 60703 pkt (dropped 0, overlimits 0 requeues 18) > backlog 0b 0p requeues 18 > maxpacket 54 drop_overlimit 0 new_flow_count 14 ecn_mark 0 > new_flows_len 0 old_flows_len 0 > $ pacman -Qi systemd > Name : systemd > Version : 232-8 > Description : system and service manager > Architecture : aarch64 > ... > $ > > > Regards, > >>> Andrew >> >> [1] >> https://github.com/torvalds/linux/commit/426849e6611f2092553f8d53372ae310818a6292 > > [0] > https://github.com/torvalds/linux/commit/e15d2774b8c096f116bf7192b37e8652da71369e > [1] > https://kernel.googlesource.com/pub/scm/linux/kernel/git/khilman/linux-amlogic/+/v4.12/integ
