Hi Flavio,
I think it should be fine as we even do a similar adjustment of splitting
OVS_DPDK_START into DB and daemon start ops for existing tests as well.
What do you think?.

Thanks,
Gowrishankar

On Thu, Jul 9, 2020 at 6:26 PM Flavio Leitner <[email protected]> wrote:

>
> Hi Gowrishankar,
>
> On Thu, Jul 09, 2020 at 11:34:33AM +0530, Gowrishankar Muthukrishnan wrote:
> > This patch adds minimal check for userspace-tso in system-dpdk
> > tests, starting with verification on virtio negotiation.
> >
> > Signed-off-by: Gowrishankar Muthukrishnan <[email protected]>
> > ---
> > v7:
> >  - fixed ovs stop log check for added tests.
> >  - test #8 is skipped using AT_ macro.
> >
> > Sample test output:
> > ## ------------------------------- ##
> > ## openvswitch 2.13.90 test suite. ##
> > ## ------------------------------- ##
> >
> > OVS-DPDK unit tests
> >
> >   1: OVS-DPDK - EAL init                             ok
> >   2: OVS-DPDK - add standard DPDK port               skipped (
> system-dpdk.at:36)
> >   3: OVS-DPDK - add vhost-user-client port           ok
> >   4: OVS-DPDK - ping vhost-user ports                ok
> >   5: OVS-DPDK - ping vhost-user-client ports         ok
> >   6: OVS-DPDK - validate negotiation when both ovs and testpmd have tso
> on ok
> >   7: OVS-DPDK - validate negotiation when ovs alone has tso on ok
> >   8: OVS-DPDK - validate negotiation when ovs alone has tso off skipped (
> system-dpdk.at:448)
> >   9: OVS-DPDK - validate negotiation when both ovs and testpmd have tso
> off ok
> >
> > ## ------------- ##
> > ## Test results. ##
> > ## ------------- ##
> >
> > 7 tests were successful.
> > 2 tests were skipped.
> >
> > ---
> >  tests/system-dpdk-macros.at |  17 ++-
> >  tests/system-dpdk.at        | 301
> +++++++++++++++++++++++++++++++++++++++++++-
> >  2 files changed, 309 insertions(+), 9 deletions(-)
> >
> > diff --git a/tests/system-dpdk-macros.at b/tests/system-dpdk-macros.at
> > index c6708ca..9e55f10 100644
> > --- a/tests/system-dpdk-macros.at
> > +++ b/tests/system-dpdk-macros.at
> > @@ -33,13 +33,11 @@ m4_define([OVS_DPDK_PRE_PHY_SKIP],
> >  ])
> >
> >
> > -# OVS_DPDK_START()
> > +# OVS_DB_START()
> >  #
> > -# Create an empty database and start ovsdb-server. Add special
> configuration
> > -# dpdk-init to enable DPDK functionality. Start ovs-vswitchd connected
> to that
> > -# database using system devices (no dummies).
> > +# Create an empty database and start ovsdb-server.
> >  #
> > -m4_define([OVS_DPDK_START],
> > +m4_define([OVS_DB_START],
> >    [dnl Create database.
> >     AT_CHECK([touch .conf.db.~lock~])
> >     AT_CHECK([ovsdb-tool create conf.db
> $abs_top_srcdir/vswitchd/vswitch.ovsschema])
> > @@ -54,7 +52,16 @@ m4_define([OVS_DPDK_START],
> >
> >     dnl Initialize database.
> >     AT_CHECK([ovs-vsctl --no-wait init])
> > +])
> > +
> >
> > +# OVS_DPDK_START()
> > +#
> > +# Add special configuration dpdk-init to enable DPDK functionality.
> > +# Start ovs-vswitchd connected to that database using system devices
> (no dummies).
> > +#
> > +m4_define([OVS_DPDK_START],
> > +  [
> >     dnl Enable DPDK functionality
> >     AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch .
> other_config:dpdk-init=true])
> >
> > diff --git a/tests/system-dpdk.at b/tests/system-dpdk.at
> > index a015d52..ef03fb2 100644
> > --- a/tests/system-dpdk.at
> > +++ b/tests/system-dpdk.at
> > @@ -1,6 +1,11 @@
> >  m4_define([CONFIGURE_VETH_OFFLOADS],
> >     [AT_CHECK([ethtool -K $1 tx off], [0], [ignore], [ignore])])
> >
> > +m4_define([SET_NUMA_NODE],
> > +   [
> > +    AT_CHECK([lscpu | awk '/NUMA node\(s\)/ {c=1; while (c++<$(3))
> {printf "$1,"}; print "$1"}' > NUMA_NODE])
> > +])
> > +
> >  AT_BANNER([OVS-DPDK unit tests])
> >
> >  dnl
> --------------------------------------------------------------------------
> > @@ -8,6 +13,7 @@ dnl Check if EAL init is successful
> >  AT_SETUP([OVS-DPDK - EAL init])
> >  AT_KEYWORDS([dpdk])
> >  OVS_DPDK_PRE_CHECK()
> > +OVS_DB_START()
> >  OVS_DPDK_START()
> >  AT_CHECK([grep "DPDK Enabled - initializing..." ovs-vswitchd.log], [],
> [stdout])
> >  AT_CHECK([grep "EAL" ovs-vswitchd.log], [], [stdout])
> > @@ -15,6 +21,7 @@ AT_CHECK([grep "DPDK Enabled - initialized"
> ovs-vswitchd.log], [], [stdout])
> >  OVS_VSWITCHD_STOP(["/Global register is changed during/d
> >  /EAL:   Invalid NUMA socket, default to 0/d
> >  /EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
> unreliable clock cycles !/d
> > +/EAL: No available hugepages reported in hugepages-1048576kB/d
> >  /EAL: No free hugepages reported in hugepages-1048576kB/d"])
> >  AT_CLEANUP
> >  dnl
> --------------------------------------------------------------------------
>
> The addition of the hugepages message in the filter is good
> in this and other tests as well, but it should be on a
> separate patch altogether because this one is only about
> tso negotiation, correct?
>
> Otherwise it looks good to me.
> Thanks
> fbl
>
>
>
>
> > @@ -27,6 +34,7 @@ AT_SETUP([OVS-DPDK - add standard DPDK port])
> >  AT_KEYWORDS([dpdk])
> >
> >  OVS_DPDK_PRE_PHY_SKIP()
> > +OVS_DB_START()
> >  OVS_DPDK_START()
> >
> >  dnl Add userspace bridge and attach it to OVS
> > @@ -41,6 +49,7 @@ OVS_VSWITCHD_STOP("/does not exist. The Open vSwitch
> kernel module is probably n
> >  /Failed to enable flow control/d
> >  /Global register is changed during/d
> >  /EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
> unreliable clock cycles !/d
> > +/EAL: No available hugepages reported in hugepages-1048576kB/d
> >  /EAL: No free hugepages reported in hugepages-1048576kB/d
> >  ")
> >  AT_CLEANUP
> > @@ -53,6 +62,7 @@ dnl Add vhost-user-client port
> >  AT_SETUP([OVS-DPDK - add vhost-user-client port])
> >  AT_KEYWORDS([dpdk])
> >  OVS_DPDK_PRE_CHECK()
> > +OVS_DB_START()
> >  OVS_DPDK_START()
> >
> >  dnl Add userspace bridge and attach it to OVS
> > @@ -74,6 +84,7 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open vSwitch
> kernel module is probably
> >  \@Global register is changed during@d
> >  \@EAL:   Invalid NUMA socket, default to 0@d
> >  \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
> unreliable clock cycles !@d
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> >  \@EAL: No free hugepages reported in hugepages-1048576kB@d"])
> >  AT_CLEANUP
> >  dnl
> --------------------------------------------------------------------------
> > @@ -86,11 +97,11 @@ AT_SETUP([OVS-DPDK - ping vhost-user ports])
> >  AT_KEYWORDS([dpdk])
> >  OVS_DPDK_PRE_CHECK()
> >  AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> >  OVS_DPDK_START()
> >
> >  dnl Find number of sockets
> > -AT_CHECK([lscpu], [], [stdout])
> > -AT_CHECK([cat stdout | grep "NUMA node(s)" | awk '{c=1; while
> (c++<$(3)) {printf "512,"}; print "512"}' > NUMA_NODE])
> > +SET_NUMA_NODE([512])
> >
> >  dnl Add userspace bridge and attach it to OVS
> >  AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > @@ -153,6 +164,7 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open
> vSwitch kernel module is probably
> >  \@failed to enumerate system datapaths: No such file or directory@d
> >  \@EAL:   Invalid NUMA socket, default to 0@d
> >  \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
> unreliable clock cycles !@d
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> >  \@EAL: No free hugepages reported in hugepages-1048576kB@d"])
> >  AT_CLEANUP
> >  dnl
> --------------------------------------------------------------------------
> > @@ -163,11 +175,11 @@ AT_SETUP([OVS-DPDK - ping vhost-user-client ports])
> >  AT_KEYWORDS([dpdk])
> >  OVS_DPDK_PRE_CHECK()
> >  AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> >  OVS_DPDK_START()
> >
> >  dnl Find number of sockets
> > -AT_CHECK([lscpu], [], [stdout])
> > -AT_CHECK([cat stdout | grep "NUMA node(s)" | awk '{c=1; while
> (c++<$(3)) {printf "512,"}; print "512"}' > NUMA_NODE])
> > +SET_NUMA_NODE([512])
> >
> >  dnl Add userspace bridge and attach it to OVS
> >  AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > @@ -229,6 +241,287 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open
> vSwitch kernel module is probably
> >  \@failed to enumerate system datapaths: No such file or directory@d
> >  \@EAL:   Invalid NUMA socket, default to 0@d
> >  \@EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using
> unreliable clock cycles !@d
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> >  \@EAL: No free hugepages reported in hugepages-1048576kB@d"])
> >  AT_CLEANUP
> >  dnl
> --------------------------------------------------------------------------
> > +
> > +dnl
> --------------------------------------------------------------------------
> > +dnl validate negotiation when both ovs and testpmd have tso on
> > +AT_SETUP([OVS-DPDK - validate negotiation when both ovs and testpmd
> have tso on])
> > +AT_KEYWORDS([dpdk])
> > +OVS_DPDK_PRE_CHECK()
> > +AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> > +AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch .
> other_config:userspace-tso-enable=true])
> > +OVS_DPDK_START()
> > +AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support
> enabled' \
> > +          ovs-vswitchd.log],[ignore],[dnl
> > +1
> > +])
> > +dnl Find number of sockets
> > +SET_NUMA_NODE([512])
> > +
> > +dnl Add userspace bridge and attach it to OVS
> > +AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > +
> > +dnl Add vhostuser port (client mode)
> > +AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface
> \
> > +          dpdkvhostuserclient0 \
> > +          type=dpdkvhostuserclient \
> > +          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
> > +         [stdout], [stderr])
> > +AT_CHECK([ovs-vsctl show], [], [stdout])
> > +
> > +dnl Execute testpmd in background
> > +on_exit "pkill -f -x -9 'tail -f /dev/null'"
> > +AT_CHECK([echo "show device info all" > CMDFILE])
> > +AT_CHECK([echo "stop" >> CMDFILE])
> > +AT_CHECK([echo "port stop 0" >> CMDFILE])
> > +AT_CHECK([echo "tso set 1500 0" >> CMDFILE])
> > +AT_CHECK([echo "csum set tcp hw 0" >> CMDFILE])
> > +AT_CHECK([echo "port start 0" >> CMDFILE])
> > +AT_CHECK([echo "start" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
> > +tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
> > +
>  --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
> > +           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
> > +           --single-file-segments -- --cmdline-file=CMDFILE \
> > +           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
> > +
> > +dnl Give settling time to the testpmd processes - NOTE: this is bad
> form.
> > +sleep 10
> > +
> > +dnl Clean up the testpmd now
> > +pkill -f -x -9 'tail -f /dev/null'
> > +sleep 1
> > +
> > +dnl Check whether TSO is turned on (host side)
> > +AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
> > +           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
> > +AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12))
> ))],[],[1801])
> > +
> > +dnl Check whether TSO is turned on (guest side)
> > +AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++}
> END{printf n}' \
> > +           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[1])
> > +
> > +dnl Clean up
> > +AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout],
> [stderr])
> > +OVS_VSWITCHD_STOP(["
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> > +\@EAL:   Invalid NUMA socket, default to 0@d
> > +\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No
> such file or directory@d
> > +"])
> > +AT_CLEANUP
> > +dnl
> --------------------------------------------------------------------------
> > +
> > +dnl
> --------------------------------------------------------------------------
> > +dnl validate negotiation when ovs alone has tso on
> > +AT_SETUP([OVS-DPDK - validate negotiation when ovs alone has tso on])
> > +AT_KEYWORDS([dpdk])
> > +OVS_DPDK_PRE_CHECK()
> > +AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> > +AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch .
> other_config:userspace-tso-enable=true])
> > +OVS_DPDK_START()
> > +AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support
> enabled' \
> > +          ovs-vswitchd.log],[ignore],[dnl
> > +1
> > +])
> > +dnl Find number of sockets
> > +SET_NUMA_NODE([512])
> > +
> > +dnl Add userspace bridge and attach it to OVS
> > +AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > +
> > +dnl Add vhostuser port (client mode)
> > +AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface
> \
> > +          dpdkvhostuserclient0 \
> > +          type=dpdkvhostuserclient \
> > +          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
> > +         [stdout], [stderr])
> > +AT_CHECK([ovs-vsctl show], [], [stdout])
> > +
> > +dnl Execute testpmd in background
> > +on_exit "pkill -f -x -9 'tail -f /dev/null'"
> > +AT_CHECK([echo "show device info all" > CMDFILE])
> > +AT_CHECK([echo "stop" >> CMDFILE])
> > +AT_CHECK([echo "port stop 0" >> CMDFILE])
> > +AT_CHECK([echo "port start 0" >> CMDFILE])
> > +AT_CHECK([echo "start" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
> > +tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
> > +
>  --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
> > +           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
> > +           --single-file-segments -- --cmdline-file=CMDFILE \
> > +           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
> > +
> > +dnl Give settling time to the testpmd processes - NOTE: this is bad
> form.
> > +sleep 10
> > +
> > +dnl Clean up the testpmd now
> > +pkill -f -x -9 'tail -f /dev/null'
> > +sleep 1
> > +
> > +dnl Check whether TSO is turned off (host side)
> > +AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
> > +           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
> > +AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12))
> ))],[],[0])
> > +
> > +dnl Check whether TSO is turned off (guest side)
> > +AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++}
> END{printf n}' \
> > +           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
> > +
> > +dnl Clean up
> > +AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout],
> [stderr])
> > +OVS_VSWITCHD_STOP(["
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> > +\@EAL:   Invalid NUMA socket, default to 0@d
> > +\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No
> such file or directory@d
> > +"])
> > +AT_CLEANUP
> > +dnl
> --------------------------------------------------------------------------
> > +
> > +dnl
> --------------------------------------------------------------------------
> > +dnl validate negotiation when ovs alone has tso off
> > +AT_SETUP([OVS-DPDK - validate negotiation when ovs alone has tso off])
> > +AT_KEYWORDS([dpdk])
> > +OVS_DPDK_PRE_CHECK()
> > +AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> > +AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch .
> other_config:userspace-tso-enable=false])
> > +OVS_DPDK_START()
> > +AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support
> enabled' \
> > +          ovs-vswitchd.log],[ignore],[dnl
> > +0
> > +])
> > +dnl Find number of sockets
> > +SET_NUMA_NODE([512])
> > +
> > +dnl Add userspace bridge and attach it to OVS
> > +AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > +
> > +dnl Add vhostuser port (client mode)
> > +AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface
> \
> > +          dpdkvhostuserclient0 \
> > +          type=dpdkvhostuserclient \
> > +          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
> > +         [stdout], [stderr])
> > +AT_CHECK([ovs-vsctl show], [], [stdout])
> > +
> > +dnl Execute testpmd in background
> > +on_exit "pkill -f -x -9 'tail -f /dev/null'"
> > +AT_CHECK([echo "show device info all" > CMDFILE])
> > +AT_CHECK([echo "stop" >> CMDFILE])
> > +AT_CHECK([echo "port stop 0" >> CMDFILE])
> > +AT_CHECK([echo "tso set 1500 0" >> CMDFILE])
> > +AT_CHECK([echo "csum set tcp hw 0" >> CMDFILE])
> > +AT_CHECK([echo "port start 0" >> CMDFILE])
> > +AT_CHECK([echo "start" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
> > +tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
> > +
>  --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
> > +           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
> > +           --single-file-segments -- --cmdline-file=CMDFILE \
> > +           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
> > +
> > +dnl Give settling time to the testpmd processes - NOTE: this is bad
> form.
> > +sleep 10
> > +
> > +dnl Clean up the testpmd now
> > +pkill -f -x -9 'tail -f /dev/null'
> > +sleep 1
> > +
> > +dnl Check whether TSO is turned off (host side)
> > +AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
> > +           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
> > +AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12))
> ))],[],[0])
> > +
> > +dnl Check whether TSO is turned off (guest side)
> > +dnl KNOWN BUG in dpdk/testpmd:
> > +dnl Once TSO is turned on in testpmd, at the same time TSO was off in
> OVS,
> > +dnl testpmd should not allow turning on TSO flag in driver. Testpmd
> needs to be
> > +dnl fixed.
> > +AT_SKIP_IF([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++}
> END{printf n}' \
> > +           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
> > +
> > +dnl Clean up
> > +AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout],
> [stderr])
> > +OVS_VSWITCHD_STOP(["
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> > +\@EAL:   Invalid NUMA socket, default to 0@d
> > +\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No
> such file or directory@d
> > +"])
> > +AT_CLEANUP
> > +dnl
> --------------------------------------------------------------------------
> > +
> > +dnl
> --------------------------------------------------------------------------
> > +dnl validate negotiation when both ovs and testpmd have tso off
> > +AT_SETUP([OVS-DPDK - validate negotiation when both ovs and testpmd
> have tso off])
> > +AT_KEYWORDS([dpdk])
> > +OVS_DPDK_PRE_CHECK()
> > +AT_SKIP_IF([! which testpmd >/dev/null 2>/dev/null])
> > +OVS_DB_START()
> > +AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch .
> other_config:userspace-tso-enable=false])
> > +OVS_DPDK_START()
> > +AT_CHECK([grep -c 'Userspace TCP Segmentation Offloading support
> enabled' \
> > +          ovs-vswitchd.log],[ignore],[dnl
> > +0
> > +])
> > +dnl Find number of sockets
> > +SET_NUMA_NODE([512])
> > +
> > +dnl Add userspace bridge and attach it to OVS
> > +AT_CHECK([ovs-vsctl add-br br10 -- set bridge br10
> datapath_type=netdev])
> > +
> > +dnl Add vhostuser port (client mode)
> > +AT_CHECK([ovs-vsctl add-port br10 dpdkvhostuserclient0 -- set Interface
> \
> > +          dpdkvhostuserclient0 \
> > +          type=dpdkvhostuserclient \
> > +          options:vhost-server-path=$OVS_RUNDIR/dpdkvhostclient0], [],
> > +         [stdout], [stderr])
> > +AT_CHECK([ovs-vsctl show], [], [stdout])
> > +
> > +dnl Execute testpmd in background
> > +on_exit "pkill -f -x -9 'tail -f /dev/null'"
> > +AT_CHECK([echo "show device info all" > CMDFILE])
> > +AT_CHECK([echo "stop" >> CMDFILE])
> > +AT_CHECK([echo "port stop 0" >> CMDFILE])
> > +AT_CHECK([echo "port start 0" >> CMDFILE])
> > +AT_CHECK([echo "start" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload capabilities" >> CMDFILE])
> > +AT_CHECK([echo "show port 0 tx_offload configuration" >> CMDFILE])
> > +tail -f /dev/null | testpmd --socket-mem="$(cat NUMA_NODE)" --no-pci\
> > +
>  --vdev="net_virtio_user,path=$OVS_RUNDIR/dpdkvhostclient0,server=1" \
> > +           --vdev="net_tap0,iface=tap0" --file-prefix page0 \
> > +           --single-file-segments -- --cmdline-file=CMDFILE \
> > +           -a >$OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log 2>&1 &
> > +
> > +dnl Give settling time to the testpmd processes - NOTE: this is bad
> form.
> > +sleep 10
> > +
> > +dnl Clean up the testpmd now
> > +pkill -f -x -9 'tail -f /dev/null'
> > +sleep 1
> > +
> > +dnl Check whether TSO is turned off (host side)
> > +AT_CHECK([awk '/negotiated Virtio features/ {a=$NF} END{print a}' \
> > +           $OVS_RUNDIR/ovs-vswitchd.log],[],[stdout])
> > +AT_CHECK([printf "%X" $(( $(cat stdout) & ((1<<0)|(1<<11)|(1<<12))
> ))],[],[0])
> > +
> > +dnl Check whether TSO is turned off (guest side)
> > +AT_CHECK([awk 'BEGIN{n=0} /Port :/ && /TCP_CKSUM/ && /TCP_TSO/ {n++}
> END{printf n}' \
> > +           $OVS_RUNDIR/testpmd-dpdkvhostuserclient0.log],[0],[0])
> > +
> > +dnl Clean up
> > +AT_CHECK([ovs-vsctl del-port br10 dpdkvhostuserclient0], [], [stdout],
> [stderr])
> > +OVS_VSWITCHD_STOP(["
> > +\@EAL: No available hugepages reported in hugepages-1048576kB@d
> > +\@EAL:   Invalid NUMA socket, default to 0@d
> > +\@VHOST_CONFIG: failed to connect to $OVS_RUNDIR/dpdkvhostclient0: No
> such file or directory@d
> > +"])
> > +AT_CLEANUP
> > +dnl
> --------------------------------------------------------------------------
> > --
> > 1.8.3.1
> >
>
> --
> fbl
>
>

-- 
Gowrishankar M
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