Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB...
Posted by davidalfa
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... December 05, 2021 06:15AM |
Registered: 11 years ago Posts: 1,303 |
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... December 14, 2021 04:31PM |
Admin Registered: 13 years ago Posts: 18,543 |
FYI,
> But I also have to enable
> CONFIG_SUPPORT_RAW_INITRD or it'll show the initrd
> format error.
In fact, the Initrd error is a regression recently introduced during the u-boot 2022.01-rc development cycles. I spent a couple hours fixing this, but then found that somebody already submitted a patch :))
The stable version 2021.10 should work fine without CONFIG_SUPPORT_RAW_INITRD workaround.
-bodhi
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> But I also have to enable
> CONFIG_SUPPORT_RAW_INITRD or it'll show the initrd
> format error.
In fact, the Initrd error is a regression recently introduced during the u-boot 2022.01-rc development cycles. I spent a couple hours fixing this, but then found that somebody already submitted a patch :))
The stable version 2021.10 should work fine without CONFIG_SUPPORT_RAW_INITRD workaround.
-bodhi
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... December 14, 2021 04:58PM |
Registered: 2 years ago Posts: 56 |
Thanks, nice to know.
I don't work with U-boot, so it was a real pita to figure it out.
The system has been working great since, no issues with the RAM.
By the way, could you share the kernel defconfigs?
Kirwood architecture seems to be "mvebu_v5_defconfig".
Got it to boot, but almost nothing worked, I guess it was missing a lot of options!
I don't work with U-boot, so it was a real pita to figure it out.
The system has been working great since, no issues with the RAM.
By the way, could you share the kernel defconfigs?
Kirwood architecture seems to be "mvebu_v5_defconfig".
Got it to boot, but almost nothing worked, I guess it was missing a lot of options!
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... December 14, 2021 05:51PM |
Admin Registered: 13 years ago Posts: 18,543 |
> By the way, could you share the kernel
> defconfigs?
> Kirwood architecture seems to be
> "mvebu_v5_defconfig".
> Got it to boot, but almost nothing worked, I guess
> it was missing a lot of options!
It is in the release thread:
https://forum.doozan.com/read.php?2,12096
So you would get the kernel source -5.15.5 from the kernel source tree, and then copy the config-5.15.5-kirkwood-tld-1, apply the patch linux-5.15.5-kirkwood-tld-1.patch and build the kernel.
For a specific box like the Dockstar, a vanilla Kirkwood Debian kernel would work fine with your own DTS/DTB. See the specific code patches in the patch file linux-5.15.5-kirkwood-tld-1.patch (not much for the Dockstar). For other Kirkwood boxes, there are more substantial patches.
-bodhi
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> defconfigs?
> Kirwood architecture seems to be
> "mvebu_v5_defconfig".
> Got it to boot, but almost nothing worked, I guess
> it was missing a lot of options!
It is in the release thread:
https://forum.doozan.com/read.php?2,12096
Quote
This tarball contains 6 files:
linux-image-5.15.5-kirkwood-tld-1_1.0_armel.deb
linux-headers-5.15.5-kirkwood-tld-1_1.0_armel.deb
config-5.15.5-kirkwood-tld-1
zImage-5.15.5-kirkwood-tld-1
linux-dtb-5.15.5-kirkwood-tld-1.tar
linux-5.15.5-kirkwood-tld-1.patch
So you would get the kernel source -5.15.5 from the kernel source tree, and then copy the config-5.15.5-kirkwood-tld-1, apply the patch linux-5.15.5-kirkwood-tld-1.patch and build the kernel.
For a specific box like the Dockstar, a vanilla Kirkwood Debian kernel would work fine with your own DTS/DTB. See the specific code patches in the patch file linux-5.15.5-kirkwood-tld-1.patch (not much for the Dockstar). For other Kirkwood boxes, there are more substantial patches.
-bodhi
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 01, 2022 03:35PM |
Admin Registered: 13 years ago Posts: 18,543 |
Added to the Wiki thread:
Thanks David!
-bodhi
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Quote
Unbricking with Serial Console & JTAG console
How to unbrick your box using serial console with kwboot
Repair Pogo E02 with Raspberry PI (JTAG) and OpenOCD
Serial Port connector - what are people using to make it work
Serial Console hookup - GoFlex Net (external link)
Serial Console hookup - Pogoplug E02 and Pogoplug Pro V3 (external link)
OSX Serial/Net Console
Use Phone Jack - Phone Jack Serial Console Pics
Adding serial connector to Pogoplug Mobile (external link)
WD Mycloud EX2100/4100 Serial Console pic1, also pic2, pic3
Dreamplug Serial Console
kwboot on Mac OSX 10
Unbrick a Pogoplug Pro v3 OXNAS by flashing u-boot in serial console
Unbricking Synology Diskstation DS414 - See also the working thread for this unbricking session
Restore Netgear Stora FW
Unbricking Netgear Stora using chainload method
Unbricking the Netgear Ready NAS Duo v2
Unbricking (Restore Factory Firmware) Netgear ReadyNAS RN102/104
Unbricking Dockstar with JTAG and OpenOCD
Thanks David!
-bodhi
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 28, 2022 05:11PM |
Registered: 2 years ago Posts: 56 |
Had a boring afternoon today.
I wanted to play with the overclocking, but having to solder the resistors every time was a mess.
So I added switches to the bootstrap pins, now I can adjust clocks (cpu, ddr, L2 cache ) and boot source on the fly, like in old computers.
After some testing, I found that DDR was stable at CPU 1500/3=500MHz.
This gave a noticeable 20% bandwidth increase. Network is also faster, NFS went from 51 to 64MB/s.
Only overclocking the cpu achieves 58MB/s, so clearly there's a memory bottleneck.
iperf test gained almost 200Mbit/s.
CPU_CLK=0x9 (1200MHz), DDR Ratio=3 (400MHz), L2 Ratio=2:1
CPU_CLK=0xC (1500MHz), DDR Ratio=3 (500MHz), L2 Ratio=2:1
Wiring instructions:
https://i.postimg.cc/jKSbd30g/bootstrap.png
Result:
https://i.postimg.cc/TTdWN9Mz/IMG-20220128-200337.jpg
https://i.postimg.cc/YMfWxPVN/IMG-20220128-201212.jpg
I wanted to play with the overclocking, but having to solder the resistors every time was a mess.
So I added switches to the bootstrap pins, now I can adjust clocks (cpu, ddr, L2 cache ) and boot source on the fly, like in old computers.
After some testing, I found that DDR was stable at CPU 1500/3=500MHz.
This gave a noticeable 20% bandwidth increase. Network is also faster, NFS went from 51 to 64MB/s.
Only overclocking the cpu achieves 58MB/s, so clearly there's a memory bottleneck.
iperf test gained almost 200Mbit/s.
CPU_CLK=0x9 (1200MHz), DDR Ratio=3 (400MHz), L2 Ratio=2:1
[ 5.378783][ T1] raid6: int32x8 gen() 110 MB/s [ 5.548743][ T1] raid6: int32x8 xor() 69 MB/s [ 5.718752][ T1] raid6: int32x4 gen() 114 MB/s [ 5.888801][ T1] raid6: int32x4 xor() 73 MB/s [ 6.058715][ T1] raid6: int32x2 gen() 149 MB/s [ 6.228629][ T1] raid6: int32x2 xor() 89 MB/s [ 6.398767][ T1] raid6: int32x1 gen() 111 MB/s [ 6.568627][ T1] raid6: int32x1 xor() 65 MB/s [ 5.563701][ T1] raid6: using algorithm int32x2 gen() 149 MB/s [ 8.616584][ T1] xor: measuring software checksum speed [ 8.631084][ T1] arm4regs : 1113 MB/sec [ 8.650957][ T1] 8regs : 667 MB/sec [ 8.666250][ T1] 32regs : 971 MB/sec [ 8.671371][ T1] xor: using function: arm4regs (1113 MB/sec) dd if=/dev/zero of=/dev/null bs=1M count=1024 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 0.992695 s, 1.1 GB/s iperf3 [ ID] Interval Transfer Bandwidth [ 4] 0.00-10.00 sec 850 MBytes 713 Mbits/sec sender [ 4] 0.00-10.00 sec 850 MBytes 712 Mbits/sec receiver
CPU_CLK=0xC (1500MHz), DDR Ratio=3 (500MHz), L2 Ratio=2:1
[ 4.368818][ T1] raid6: int32x8 gen() 138 MB/s [ 4.538627][ T1] raid6: int32x8 xor() 87 MB/s [ 4.708653][ T1] raid6: int32x4 gen() 143 MB/s [ 4.878657][ T1] raid6: int32x4 xor() 91 MB/s [ 5.048664][ T1] raid6: int32x2 gen() 186 MB/s [ 5.218670][ T1] raid6: int32x2 xor() 111 MB/s [ 5.388786][ T1] raid6: int32x1 gen() 141 MB/s [ 5.558716][ T1] raid6: int32x1 xor() 84 MB/s [ 5.563701][ T1] raid6: using algorithm int32x2 gen() 186 MB/s [ 7.255500][ T1] xor: measuring software checksum speed [ 7.268208][ T1] arm4regs : 1379 MB/sec [ 7.285152][ T1] 8regs : 834 MB/sec [ 7.298356][ T1] 32regs : 1214 MB/sec [ 7.303458][ T1] xor: using function: arm4regs (1379 MB/sec) dd if=/dev/zero of=/dev/null bs=1M count=1024 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 0.794557 s, 1.4 GB/s iperf3 [ ID] Interval Transfer Bandwidth [ 4] 0.00-10.00 sec 1.04 GBytes 895 Mbits/sec sender [ 4] 0.00-10.00 sec 1.04 GBytes 895 Mbits/sec receiver
Wiring instructions:
https://i.postimg.cc/jKSbd30g/bootstrap.png
Result:
https://i.postimg.cc/TTdWN9Mz/IMG-20220128-200337.jpg
https://i.postimg.cc/YMfWxPVN/IMG-20220128-201212.jpg
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 28, 2022 06:03PM |
Registered: 7 years ago Posts: 366 |
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 28, 2022 06:26PM |
Admin Registered: 13 years ago Posts: 18,543 |
daviddyer is correct.
GoFlex Home benchmark (GF Home is identical to Dockstar in CPU, RAM, and Ethernet chip)
So the ~700mbs range in davidalfa test is probably either test evironment artifacts (the switch in the midle, or the box at the other end slowed it down), or the kernel.
-bodhi
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Edited 1 time(s). Last edit at 01/28/2022 06:48PM by bodhi.
GoFlex Home benchmark (GF Home is identical to Dockstar in CPU, RAM, and Ethernet chip)
iperf -n2000M -i 3 -c 192.168.0.224 ------------------------------------------------------------ Client connecting to 192.168.0.224, TCP port 5001 TCP window size: 43.8 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.0.235 port 43918 connected with 192.168.0.224 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 3.0 sec 337 MBytes 941 Mbits/sec [ 3] 3.0- 6.0 sec 337 MBytes 941 Mbits/sec [ 3] 6.0- 9.0 sec 334 MBytes 935 Mbits/sec [ 3] 9.0-12.0 sec 337 MBytes 942 Mbits/sec [ 3] 12.0-15.0 sec 337 MBytes 941 Mbits/sec [ 3] 0.0-17.8 sec 1.95 GBytes 940 Mbits/sec
So the ~700mbs range in davidalfa test is probably either test evironment artifacts (the switch in the midle, or the box at the other end slowed it down), or the kernel.
-bodhi
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Edited 1 time(s). Last edit at 01/28/2022 06:48PM by bodhi.
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 28, 2022 07:19PM |
Registered: 2 years ago Posts: 56 |
Hmm I'm still on 5.14.9.
The results where consistent, tested several times.
Maybe some daemon (samba, nfs, transmission) could affect, but everything was idling, 0% CPU usage and no transfers.
Will re-test with a clean filesystem.
Btw, dd made 110MB/s reading 2GB file from Ext4, didn't do that few months ago, maybe some improvements in the recent kernel?
Edited 1 time(s). Last edit at 01/28/2022 07:25PM by davidalfa.
The results where consistent, tested several times.
Maybe some daemon (samba, nfs, transmission) could affect, but everything was idling, 0% CPU usage and no transfers.
Will re-test with a clean filesystem.
Btw, dd made 110MB/s reading 2GB file from Ext4, didn't do that few months ago, maybe some improvements in the recent kernel?
Edited 1 time(s). Last edit at 01/28/2022 07:25PM by davidalfa.
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 28, 2022 09:05PM |
Admin Registered: 13 years ago Posts: 18,543 |
> Btw, dd made 110MB/s reading 2GB file from Ext4,
> didn't do that few months ago, maybe some
> improvements in the recent kernel?
Could be. Seems like Ext4 driver has been worked on and improved in each kernel release.
-bodhi
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> didn't do that few months ago, maybe some
> improvements in the recent kernel?
Could be. Seems like Ext4 driver has been worked on and improved in each kernel release.
-bodhi
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 29, 2022 06:15PM |
Registered: 2 years ago Posts: 56 |
The HDD performance was due the use of a diferent 2.5" disk. I switched from a 500GB to 1TB disk.
Clean rootfs, kernel 5.15.5
1.2GHz, DDR400
1.5GHz, DDR500
If the bottleneck was the computer/switch/router then the overclock wouldn't make a difference.
Strange...
Edited 1 time(s). Last edit at 01/29/2022 06:25PM by davidalfa.
Clean rootfs, kernel 5.15.5
1.2GHz, DDR400
iperf3 -n2000M -i 3 -c 192.168.0.165 Connecting to host 192.168.0.165, port 5201 [ 4] local 192.168.0.100 port 52354 connected to 192.168.0.165 port 5201 [ ID] Interval Transfer Bandwidth [ 4] 0.00-3.00 sec 254 MBytes 711 Mbits/sec [ 4] 3.00-6.00 sec 256 MBytes 716 Mbits/sec [ 4] 6.00-9.00 sec 256 MBytes 715 Mbits/sec [ 4] 9.00-12.00 sec 256 MBytes 716 Mbits/sec [ 4] 12.00-15.00 sec 256 MBytes 717 Mbits/sec [ 4] 15.00-18.00 sec 256 MBytes 715 Mbits/sec [ 4] 18.00-21.00 sec 256 MBytes 717 Mbits/sec [ 4] 21.00-23.46 sec 210 MBytes 716 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth [ 4] 0.00-23.46 sec 1.95 GBytes 715 Mbits/sec sender [ 4] 0.00-23.46 sec 1.95 GBytes 715 Mbits/sec receiver iperf Done.
1.5GHz, DDR500
iperf3 -n2000M -i 3 -c 192.168.0.165 Connecting to host 192.168.0.165, port 5201 [ 4] local 192.168.0.100 port 52318 connected to 192.168.0.165 port 5201 [ ID] Interval Transfer Bandwidth [ 4] 0.00-3.00 sec 318 MBytes 888 Mbits/sec [ 4] 3.00-6.00 sec 318 MBytes 889 Mbits/sec [ 4] 6.00-9.00 sec 319 MBytes 893 Mbits/sec [ 4] 9.00-12.00 sec 320 MBytes 895 Mbits/sec [ 4] 12.00-15.00 sec 319 MBytes 892 Mbits/sec [ 4] 15.00-18.00 sec 316 MBytes 885 Mbits/sec [ 4] 18.00-18.85 sec 89.6 MBytes 888 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth [ 4] 0.00-18.85 sec 1.95 GBytes 890 Mbits/sec sender [ 4] 0.00-18.85 sec 1.95 GBytes 890 Mbits/sec receiver iperf Done.
If the bottleneck was the computer/switch/router then the overclock wouldn't make a difference.
Strange...
Edited 1 time(s). Last edit at 01/29/2022 06:25PM by davidalfa.
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 29, 2022 07:04PM |
Admin Registered: 13 years ago Posts: 18,543 |
davidalfa,
Strange indeed.
Of course we assume that this Dockstar is the same as the GF Home regarding CPU, RAM, and network chip. My Dockstar and GF Home do have indentical specs for that.
But the Dockstar comes in 2 versions, so could you check the network chip label to see if it is 88E1116R or 88E1118R or something else?
Also, see what settings the network has currently:
I'll boot up my Dockstar if it is still a mystery.
-bodhi
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Edited 1 time(s). Last edit at 01/29/2022 07:30PM by bodhi.
Strange indeed.
Of course we assume that this Dockstar is the same as the GF Home regarding CPU, RAM, and network chip. My Dockstar and GF Home do have indentical specs for that.
But the Dockstar comes in 2 versions, so could you check the network chip label to see if it is 88E1116R or 88E1118R or something else?
Also, see what settings the network has currently:
ethtool eth0 ethtool --show-offload eth0 | grep tcp-segmentation-offload
I'll boot up my Dockstar if it is still a mystery.
-bodhi
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Edited 1 time(s). Last edit at 01/29/2022 07:30PM by bodhi.
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 30, 2022 09:25AM |
Registered: 2 years ago Posts: 56 |
It's a 88E1116R
Just in case, I compiled latest official U-Boot (2022.01-00846-g98a90b2730).
CONFIG_SUPPORT_RAW_INITRD is no longer required, as you already mentioned.
I also tested the GofFlexNet DTB.
No changes in performance in any case.
Edited 3 time(s). Last edit at 01/30/2022 11:53AM by davidalfa.
Just in case, I compiled latest official U-Boot (2022.01-00846-g98a90b2730).
CONFIG_SUPPORT_RAW_INITRD is no longer required, as you already mentioned.
I also tested the GofFlexNet DTB.
No changes in performance in any case.
root@debian:~# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: Symmetric Receive-only
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
master-slave cfg: preferred slave
master-slave status: master
Port: Twisted Pair
PHYAD: 0
Transceiver: external
MDI-X: Unknown
Supports Wake-on: d
Wake-on: d
Link detected: yes
root@debian:~# ethtool --show-offload eth0 | grep tcp-segmentation-offload
tcp-segmentation-offload: on
Edited 3 time(s). Last edit at 01/30/2022 11:53AM by davidalfa.
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Re: Dockstar mods: SATA, SD, 256MB RAM, Compiling/Modding U-boot; kernel DTB... January 30, 2022 04:44PM |
Admin Registered: 13 years ago Posts: 18,543 |
Ok, it looks normal. So still a mystery why stock Dockstar performs poorly comparing to the GF Home. I'll boot up my Dockstar when I have a chance.
-bodhi
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