All,
below is the validation of the submitted patch - I used the default rx free
thresh (0) and 64 & it now works for both cases.
Thank you!
Bryan Benson
-- Validation --
[bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c
0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2
--enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024
--txd=1024 -i
... <Text Removed> ...
testpmd> set fwd csum
Set csum packet forwarding mode
testpmd> start
csum packet forwarding - CRC stripping enabled - packets/burst=16
nb forwarding cores=2 - nb forwarding ports=2
RX queues=1 - RX desc=1024 - RX free threshold=0
RX threshold registers: pthresh=8 hthresh=8 wthresh=4
TX queues=1 - TX desc=1024 - TX free threshold=0
TX threshold registers: pthresh=36 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ flags=0x0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 505103 RX-dropped: 0 RX-total: 505103
Bad-ipcsum: 505088 Bad-l4csum: 0
TX-packets: 508688 TX-dropped: 0 TX-total: 508688
----------------------------------------------------------------------------
---------------------- Forward statistics for port 1 ----------------------
RX-packets: 508944 RX-dropped: 0 RX-total: 508944
Bad-ipcsum: 0 Bad-l4csum: 508672
TX-packets: 505103 TX-dropped: 0 TX-total: 505103
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 1014047 RX-dropped: 0 RX-total: 1014047
TX-packets: 1013791 TX-dropped: 0 TX-total: 1013791
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
testpmd> quit
[bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c
0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2
--enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024
--txd=1024 --rxfreet=64 -i
... <Text Removed> ...
testpmd> set fwd csum
Set csum packet forwarding mode
testpmd> start
csum packet forwarding - CRC stripping enabled - packets/burst=16
nb forwarding cores=2 - nb forwarding ports=2
RX queues=1 - RX desc=1024 - RX free threshold=64
RX threshold registers: pthresh=8 hthresh=8 wthresh=4
TX queues=1 - TX desc=1024 - TX free threshold=0
TX threshold registers: pthresh=36 hthresh=0 wthresh=0
TX RS bit threshold=0 - TXQ flags=0x0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 314382 RX-dropped: 0 RX-total: 314382
Bad-ipcsum: 314368 Bad-l4csum: 0
TX-packets: 317453 TX-dropped: 0 TX-total: 317453
----------------------------------------------------------------------------
---------------------- Forward statistics for port 1 ----------------------
RX-packets: 317492 RX-dropped: 0 RX-total: 317492
Bad-ipcsum: 0 Bad-l4csum: 317440
TX-packets: 314382 TX-dropped: 0 TX-total: 314382
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 631874 RX-dropped: 0 RX-total: 631874
TX-packets: 631835 TX-dropped: 0 TX-total: 631835
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
________________________________________
From: Thomas Monjalon [thomas.monja...@6wind.com]
Sent: Thursday, November 07, 2013 3:44 AM
To: Benson, Bryan
Cc: dev at dpdk.org; LiuFeng
Subject: Re: [dpdk-dev] RX checksum offloading
07/11/2013 10:06, Thomas Monjalon :
> 07/11/2013 04:44, Benson, Bryan :
> > RX queues=1 - RX desc=1024 - RX free threshold=16
> >
> > ---------------------- Forward statistics for port 0
> >
> > RX-total: 543761 Bad-ipcsum: 543558 Bad-l4csum: 0
> >
> > ---------------------- Forward statistics for port 1
> >
> > RX-total: 542226 Bad-ipcsum: 0 Bad-l4csum: 542005
> >
> > RX queues=1 - RX desc=1024 - RX free threshold=32
> >
> > ---------------------- Forward statistics for port 0
> >
> > RX-total: 378894 Bad-ipcsum: 0 Bad-l4csum: 0
> >
> > ---------------------- Forward statistics for port 1
> >
> > RX-total: 381197 Bad-ipcsum: 0 Bad-l4csum: 0
>
> Excellent report, thank you !
>
> We need to fix it now :)
LiuFeng had seen this issue with additonal comments:
http://www.dpdk.org/ml/archives/dev/2013-September/000529.html
--
Thomas
