XPS_LL_TEMAC works correctly?

Rick Moleres Rick.Moleres at xilinx.com
Tue Apr 15 01:42:33 EST 2008

There are a couple of bugs in the v1.00b version of xps_ll_temac (one in checksum offload, one in multicast address reception).  You should try dropping back to v1.00a of the core and give that a try, or if you have EDK 10.1 you can move to v1.01a of the core.





From: linuxppc-embedded-bounces+moleres=xilinx.com at ozlabs.org [mailto:linuxppc-embedded-bounces+moleres=xilinx.com at ozlabs.org] On Behalf Of Mohammad Sadegh Sadri
Sent: Monday, April 14, 2008 3:10 AM
To: Rami WEHBI; linuxppc-embedded at ozlabs.org
Subject: RE: XPS_LL_TEMAC works correctly?



Thanks for reply,

But if u study the kernel log I posted carefully, you can simply see that Kernel has mounted the root file system, 
Look at this line in my prev post : VFS: Mounted root (nfs filesystem). then init has began and after that nothing more happens. 

the NFS is working correctly and the folder can be mounted easily from other computers. I personally think that the problem can be with NFS or the root file system of ELDK. 

I have done the same things with older versions of EDK using PLB_TEMAC and every thing has worked correctly.


Subject: RE: XPS_LL_TEMAC works correctly?
Date: Mon, 14 Apr 2008 10:31:31 +0200
From: rwehbi at wirecom-tech.com
To: mamsadegh at hotmail.com



I would suggest that you verify that your system file is already mounted on the host PC (where your server NFS is installed), and that the /etc/exports file (configuration file of the nfs server) permit to your board to mount the system file.


example of an /etc/exports file:




where the ip addresse is that of nfs client, and the path indicates where I mounted the system file.


Good luck,





De : linuxppc-embedded-bounces+rami.wehbi=wirecom-tech.com at ozlabs.org [mailto:linuxppc-embedded-bounces+rami.wehbi=wirecom-tech.com at ozlabs.org] De la part de Mohammad Sadegh Sadri
Envoyé : lundi 14 avril 2008 10:16
À : linuxppc-embedded at ozlabs.org
Objet : XPS_LL_TEMAC works correctly?

Hi all,

EDK 9.2.02, 
Xilinx Linux 2.6.24-rc8-xlnx
XPS_LL_TEMAC version 1.00.b

I bring up the Linux kernel on ML403 -Rev04 board,
LL_TEMAC buffer size 128kbits, and set to use SG DMA

I encounter the following messages when the kernel wants to mount the root file system, as one can see the kernel has mounter the nfs root file system and init is initiated, but after that a Link carrier lost happens and it stops working. 

is this behavior natural? ( the PC has attansic gigabit ethernet port with kernel running, nfs works very well in other tests)


eth0: XLlTemac: speed set to 1000Mb/s
eth0: XLlTemac: Send Threshold = 24, Receive Threshold = 4
eth0: XLlTemac: Send Wait bound = 254, Receive Wait bound = 254
IP-Config: Complete:
      device=eth0, addr=, mask=, gw=,
     host=, domain=, nis-domain=(none),
     bootserver=, rootserver=, rootpath=
Looking up port of RPC 100003/2 on
Looking up port of RPC 100005/1 on
VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 88k init
eth0: XLlTemac: PHY Link carrier lost.
eth0: XLlTemac: speed set to 1000Mb/s
eth0: XLlTemac: PHY Link carrier restored.


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