On Fri, Nov 25, 2011 at 10:55 AM, Benjamin Herrenschmidt <b...@kernel.crashing.org> wrote: > On Fri, 2011-11-18 at 10:33 +0530, Prashant Bhole wrote: >> Hi, >> I have been facing problem with ibm_newemac driver (v3.54). >> The board gets disconnected and can not be pinged in between >> some heavy network traffic. In my case I am running IOmeter >> "All-in-One" 8 threads on the iSCSI target. MTU is 4088. >> >> I found that after executing emac_full_tx_reset(), the board can >> be pinged again. Again after some heavy traffic of 5-6 seconds, >> traffic stops. This can be repeated after full tx reset. >> >> Is this a known issue? what could cause this? >> Any pointers would be greatly appreciated. > > Not that I know of. Can you check if any of the error reporting > registers trip anything ? Could it just be a fifo overflow which we may > not be handling properly in the driver ? > > Cheers, > Ben.
Still couldn't find anything like fifo overflow... I noticed one more thing, this problem happens only when mtu size on the initiator (the other end) is set to 4088, regardless of any mtu size set for EMAC. - Prashant _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
