[200] Developing Apps for C200

[lundman]

Well, its beta, not sure it should play dvds yet, but definitely strange it can not play them over NFS.

Could be talking to OSX nfsd maybe, my gb switch maybe..

Code:

./ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Link detected: yes


eth0      Link encap:Ethernet  HWaddr 00:06:DC:80:68:2D  
          inet addr:192.168.11.27  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:199296 errors:7413 dropped:0 overruns:0 frame:36
          TX packets:129222 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:256
          RX bytes:291171006 (277.6 MiB)  TX bytes:11192889 (10.6 MiB)
          Interrupt:46

Only strange thing is the "errors:"

[OwL]

The errors part is probably why NFS did not work out.. try mounting NFS using TCP instead of the default UDP (using -o tcp when mounting, causing resend of erroneous packets)... then your NFS will probably work... but... Now we need to investigate why you get so many errors....

Edit: Lets hope it's not a broken eth controller in your PCH... I had a similar issue with NFS on my MythTV Frontend a while ago... turned out to be a damaged eth controller... switched it, and NFS worked again...

Regards // R

(09-09-2009 01:09 PM)lundman Wrote:  Well, its beta, not sure it should play dvds yet, but definitely strange it can not play them over NFS.

Could be talking to OSX nfsd maybe, my gb switch maybe..

Code:

./ethtool eth0
Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Link detected: yes


eth0      Link encap:Ethernet  HWaddr 00:06:DC:80:68:2D  
          inet addr:192.168.11.27  Bcast:192.168.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:199296 errors:7413 dropped:0 overruns:0 frame:36
          TX packets:129222 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:256
          RX bytes:291171006 (277.6 MiB)  TX bytes:11192889 (10.6 MiB)
          Interrupt:46

Only strange thing is the "errors:"

[dc11ab]

Does using the nfs-tcp:// connect string make any difference?

[chris57]

If you have one try a 100mbs switch in between as gigabit seems to not be performing that well yet.

I'm using NFS from my Synology and funnily enough the mount is my test files that I have built up.

[halfelite]

I have not had a problem with my gigabit switch yet. Works just fine.

[chris57]

I didn't at first either, I got 15Mb/s and 12Mb/s via FTP and SMB. Now I get 9-10Mb/s and 10Mb/s respectively. It is something that they are aware of as those alpha testers with a gigabit connection suffered similarly.

[halfelite]

(09-10-2009 07:33 AM)chris57 Wrote:  I didn't at first either, I got 15Mb/s and 12Mb/s via FTP and SMB. Now I get 9-10Mb/s and 10Mb/s respectively. It is something that they are aware of as those alpha testers with a gigabit connection suffered similarly.

Could also be switch type. I have a $$$$ switch that handles traffic control better then most. I never had a problem with my a110 on the switch either.

[kiranos]

I dont think its a switch issue, most probably firmware, how is computer to computer through the switch? 10Mb/s? if so faulty switch which ever brand.

[chris57]

It happens across brands but I do not want to take this thread totally off topic and it is beta firmware and a big priority to improve, so they are on it. I was just suggesting that as there are issues to be fixed with gigabit putting a 100mbs switch in may help resolve the rrors in the meantime and perhaps help target what the problem lies. Just trying to be helpful.

Back to hacking in to the box please.

[lundman]

8MB/s FTP to c200, adn 11mb/s from. Which makes me think it's at 100mb/s. I'll double check whats going on when I get home, but even at 7mb/s, it should play DVDs perfectly.

[halfelite]

FTP I get 17MB/s. and Through llink on a fast forward of x264 1080p I hit 8MB/s

[chris57]

Well I've just been grovelling around under the table to get to my gigabit switch when I realised that I had forgot to place my NAS on the switch rather than straight into my 100mbs router port. Whilst plugging it into the switch I noticed that the C200 cable has worked slightly loose. Firmly seating it has jumped my FTP speed back to 14MB/s. 9 times out of 10 it's always the things you discount that cause the problems.

[lundman]

Anyone found a better way to use their toolchain but specifying -EL for little endian? I have come across a few piece of software that don't use *FLAGS variables or similar, and it is a bit of a pain. I was hoping I could just make symlinks with mipsel- names, but it is not THAT dynamic.

At the moment, I use this compile line which works most of the time:

Code:

./configure --host=mips-linux-gnu CFLAGS=-EL CXXFLAGS=-EL LDFLAGS=-EL CPPFLAGS=-EL ASFLAGS=-EL CC="mips-linux-gnu-gcc -EL"

The last one was needed for something that used libtool to create a shared library, but ditching CFLAGS.

Eventually, I'll just break down and compile a mipsel tool chain, cos this is a pain

[journey4712]

i found the -EL to go missing sometimes when using libtool, quite annoying. Good suggestion on adjusting CC to include that flag, i opened up libtool and added it by hand to the "archive_cmds" variable. With the codesourcery you can also use -march=74kc which i think is the right target(c200 reports sigma designs tangoX MIPS 74K V4.9 FPU V0.0) and should encourage gcc to order the assembly for best performance on the C200. Not sure what the trailing c represents though.

journey4712

[Ger Teunis]

I've added this Lundmans' shell to CSI for C200:
http://www.networkedmediatank.com/showth...?tid=27251

Just install it using CSI and use nc (netcat) to start the shell.
More instructions after installation.

Windows users: use netcat for windows:
http://www.securityfocus.com/tools/139