[Bug 230465] ixl: not working in netmap mode

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230465

slw at zxy.spb.ru changed:

           What    |Removed                     |Added
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                 CC|                            |slw at zxy.spb.ru

--- Comment #43 from slw at zxy.spb.ru ---
(In reply to Vincenzo Maffione from comment #42)

Looks like netmap don't worked:

# /usr/obj/usr/src/amd64.amd64/tools/tools/netmap/pkt-gen -i ixl1 -f tx
321.990539 main [2921] interface is ixl1
321.990568 main [3044] using default burst size: 512
321.990573 main [3052] running on 1 cpus (have 24)
321.990640 extract_ip_range [476] range is 10.0.0.1:1234 to 10.0.0.1:1234
321.990645 extract_ip_range [476] range is 10.1.0.1:1234 to 10.1.0.1:1234
Sending on netmap:ixl1: 5 queues, 1 threads and 1 cpus.
10.0.0.1 -> 10.1.0.1 (00:00:00:00:00:00 -> ff:ff:ff:ff:ff:ff)
322.096770 main [3255] Sending 512 packets every  0.000000000 s
322.096813 start_threads [2580] Wait 2 secs for phy reset
324.222299 start_threads [2582] Ready...
324.222365 sender_body [1599] start, fd 3 main_fd 3
324.222392 sender_body [1657] frags 1 frag_size 60
324.234391 sender_body [1695] drop copy
325.285776 main_thread [2671] 2.794 Mpps (2.971 Mpkts 1.341 Gbps in 1063411
usec) 15.05 avg_batch 0 min_space
326.348859 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063084 usec)
0.00 avg_batch 99999 min_space
326.472386 sender_body [1682] poll error on queue 0: timeout
327.411859 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063000 usec)
0.00 avg_batch 99999 min_space
328.473456 sender_body [1682] poll error on queue 0: timeout
328.474874 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063015 usec)
0.00 avg_batch 99999 min_space
329.537820 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1062945 usec)
0.00 avg_batch 99999 min_space
330.474386 sender_body [1682] poll error on queue 0: timeout
330.600771 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1062951 usec)
0.00 avg_batch 99999 min_space
331.663860 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063090 usec)
0.00 avg_batch 99999 min_space
332.475381 sender_body [1682] poll error on queue 0: timeout
332.726861 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063001 usec)
0.00 avg_batch 99999 min_space
^C333.671467 sigint_h [573] received control-C on thread 0x800a12000
333.671475 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 944614 usec)
0.00 avg_batch 99999 min_space
334.476434 sender_body [1737] flush tail 576 head 576 on thread 0x800a12700
334.734834 main_thread [2671] 0.000 pps (0.000 pkts 0.000 bps in 1063359 usec)
0.00 avg_batch 99999 min_space
Sent 2971392 packets 178283520 bytes 197414 events 60 bytes each in 10.25
seconds.
Speed: 289.777 Kpps Bandwidth: 139.093 Mbps (raw 139.093 Mbps). Average batch:
15.05 pkts


Additional, in my application I am see logical errors from kernel:

I a send 3 packets in ring 0, c/h/t is 3/3/2047
do NIOCTXSYNC, c/h/t is 3/3/0
do not send any packets, just do NIOCTXSYNC, c/h/t is 3/3/3 now!
i.e. like TX ring is full and stalled. Any transmission staled after this.

13-stable.

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