On 05/05/2014 01:38 PM, Thomas Petazzoni wrote: > Dear Alexander Duyck, > > On Mon, 05 May 2014 08:28:02 -0700, Alexander Duyck wrote: > >>> 1. So overall issue is any memory/config space access hangs(logs above) >>> if bus master enable bit is set on IGB NIC card,this is not observed >>> with E1000E NIC cards on same platform. >>> >>> 2. Above issue is repro'able on my ARM platform, not x86 ubuntu. Not >>> sure how much its related to ARM though. >>> >>> 3. I saw below differences in lspci -vvv output b/w e1000e and igb, I am >>> not sure if this has anything to do with above issue. >>> RC config is same for both cases. >>> >>> IGB / E1000E >>> >>> Command Status: INTx+/INTx- >>> PM Status: NoSoftRst+/NoSoftRst- >>> DevCap: FLReset-/FLReset+ >>> No Dev/Link2 Cap/Sta Registers for E1000E >>> Some differences in AER Registers >>> >>> 4. Any idea, if this card is verified on ARM by anybody? >>> >> >> It seems like you are glossing over the obvious issue. You said it >> yourself, this works fine on x86. Therefore this is likely VERY related >> to ARM, or at least your specific ARM platform configuration. > > Since I haven't seen the beginning of the thread, I might be completely > off topic. However, I wanted to mention that I have successfully used > and tested an IGB PCIe NIC on an ARM Armada XP platform. If that is > useful, I'd be happy to provide you with additional details upon > request. > > Best regards, > > Thomas >
Thomas, Glad to hear that this is working on your ARM platform as expected. I believe the issue Shiv is having is due to a problem with the specific platform as the IGB device is reporting a Data Link Protocol error via AER and I believe this is what is causing his platform issues. On enabling BME the device is likely signalling a Fatal Error message in response to the DLP error. The original error he was seeing was: Unhandled fault: imprecise external abort (0x1406) at 0x00000000 Thanks, Alex ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
