Looks like , this is known issue.. Please check this part "6.6. Not all variants of supported NIC types have been used in testing" <http://dpdk.org/doc/guides-1.8/rel_notes/known_issues.html>
Thanks Sakthivel S On Fri, May 6, 2016 at 1:28 PM, Upendra Pathrikar <uspathrikar at gmail.com> wrote: > Hi, > > I am using machine with > > on board NIC - pci-e connection - Intel Corporation Ethernet Connection > I217-LM (rev 04) -e1000e kernel deriver > add on card - pci conncetion - Intel Corporation 82540EM Gigabit Ethernet > Controller (rev 02) -e1000 kernel driver > > whenever i bind only I217-LM with igb_uio, testpmd($ sudo ./testpmd -c 0xff > -n 4 -- -i) runs well without any error and pmd identify port and > everything. > > but whenever i bind 82540EM with igb_uio, testpmd($ sudo ./testpmd -c 0xff > -n 4 -- -i) runs with error "EAL: Error reading from file descriptor 21: > Input/output error" though it runs and identify port etc. But continues > "EAL: Error reading from file descriptor 21: Input/output error" is printed > on screen. > > So is this error specfic to nic or driver e1000 or pci connection ? > > I am unable to identify. If i add one more card of Intel Corporation > 82540EM Gigabit Ethernet Controller (rev 02) -e1000 kernel driver with pci > connection, now it gives two errors "EAL: Error reading from file > descriptor 21: Input/output error" and "EAL: Error reading from file > descriptor 23: Input/output error" one after another in continues stream > > I tried for dpdk-2.0.0, dpdk-2.2.0 and dpdk-16.04 > > What is exact problem behind error and how can we resolve this. > > -- > > > > > *Regards,Upendra Sunil PathrikarBharti School of Telecom Technology and > Management,Indian Institute of Technology, Delhi.* >
