[meta-freescale] Possible Ethernet driver bug
Gustavo Ramon Arambula Aguilar
gustavo.arambula at nxp.com
Thu Dec 17 13:32:49 PST 2015
Hello team,
We have a case in which there appears to be a bug on the Ethernet driver, have anyone experienced this? Would you know if a fix is in the works?
Linux : fsl-yocto-L3.14.38_6ul-ga.tar.gz
We test an Ethernet function(at High load).
However, when the Receive transaction stops, some data are left in the Receive descriptor queue(and FIFO).
(Linux Kernel cannot receive data.)
If some packets are received as a dummy in addition the data in descriptor queue are sent to kernel.
It seems that in the case of high load, the Receive polling is executed by the interrupt trigger. However, an interrupt does not occur when the Receive stops. As a result, data have remained in teh Receive descriptor queue.
Regards,
Gustavo
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