[dpdk-dev] [dpdk-users] ixgbe drop all the packet

[wei wang]

my enviroment:
NIC:X540
DPDK version:2.2.0

problems:
start dpdk app with traffic not stopped，app can't receive any packet
from dpdk ixgbe driver (1.2w pps udp packet).
test five times would happens 1 ~ 2 times.

The stats of the nic (ipackets==3230 and imissed == ierrors):
ipackets 3230 imissed 9780225 ierrors 9780225
ipackets 3230 imissed 9792154 ierrors 9792154
ipackets 3230 imissed 9804310 ierrors 9804310
ipackets 3230 imissed 9816177 ierrors 9816177
ipackets 3230 imissed 9828042 ierrors 9828042
ipackets 3230 imissed 9839694 ierrors 9839694
ipackets 3230 imissed 9851412 ierrors 9851412
ipackets 3230 imissed 9863134 ierrors 9863134
ipackets 3230 imissed 9874722 ierrors 9874722
ipackets 3230 imissed 9886776 ierrors 9886776
ipackets 3230 imissed 9898616 ierrors 9898616
ipackets 3230 imissed 9910648 ierrors 9910648
ipackets 3230 imissed 9922513 ierrors 9922513

The value of register RDH:1023
The value of register RDT:959

there are some desc value log for one queue, the format of the log is
[desc_idx](DD value, vlan, length, status_error) :
[959]:(0,0, 0, 0) [960]:(1,0, 2048, 1342308425) [961]:(1,0, 2048,
1342308425) [962]:(1,0, 1031, 1342308427)
[963]:(1,0, 0, 3) [964]:(1,0, 0,       3)
[965]:(1,0, 2048, 1342308425) [966]:(1,0, 2048, 1342308425)
[967]:(1,0, 1031, 1342308427) [968]:(1,0, 0, 3) [969]:(1,0, 0, 3)
[970]:(1,0, 2048, 1342308425)
[971]:(1,0, 2048, 1342308425) [972]:(1,0, 1031, 1342308427)
[973]:(1,0, 0, 3) [974]:(1,0, 0, 3)
[975]:(1,0, 2048, 1342308425) [976]:(1,0, 2048, 1342308425)
[977]:(1,0, 1031, 1342308427) [978]:(1,0, 0, 3)
[979]:(1,0, 0, 3) [980]:(1,0, 2048, 1342308425) [981]:(1,0, 2048,
1342308425) [982]:(1,0, 1031, 1342308427)
[983]:(1,0, 0, 3) [984]:(1,0, 0, 3) [985]:(1,0, 2048, 1342308425)
[986]:(1,0, 2048, 1342308425)
[987]:(1,0, 1031, 1342308427) [988]:(1,0, 0, 3) [989]:(1,0, 0, 3)
[990]:(1,0, 2048, 1342308425)
[991]:(1,0, 2048, 1342308425) [992]:(1,0, 1031, 1342308427)
[993]:(1,0, 0, 3) [994]:(1,0, 0, 3)
[995]:(1,0, 2048, 1342308425) [996]:(1,0, 2048, 1342308425)
[997]:(1,0, 1031, 1342308427) [998]:(1,0, 0, 3)
[999]:(1,0, 0, 3) [1000]:(1,0, 2048, 1342308425) [1001]:(1,0, 2048,
1342308425) [1002]:(1,0, 1031, 1342308427)
[1003]:(1,0, 0, 3) [1004]:(1,0, 0, 3) [1005]:(1,0, 2048, 1342308425)
[1006]:(1,0, 2048, 1342308425)
[1007]:(1,0, 1031, 1342308427) [1008]:(1,0, 0, 3) [1009]:(1,0, 0, 3)
[1010]:(1,0, 2048, 1342308425)
[1011]:(1,0, 2048, 1342308425) [1012]:(1,0, 1031, 1342308427)
[1013]:(1,0, 0, 3)[1014]:(1,0, 0, 3)
[1015]:(1,0, 2048, 1342308425) [1016]:(1,0, 2048, 1342308425)
[1017]:(1,0, 1031, 1342308427) [1018]:(1,0, 0, 3)
 [1019]:(1,0, 0, 3) [1020]:(1,0, 2048, 1342308425) [1021]:(1,0, 2048,
1342308425)  [1022]:(1,0, 1031, 1342308427) [1023]:(0,0, 0, 0)

other desc in the ring is all zero。

is there a bug?

PS: it was normal with linux ixgbe driver。