On Fri, Oct 17, 2014 at 4:29 PM, Daniele Di Proietto <ddiproie...@vmware.com> wrote: > Signed-off-by: Daniele Di Proietto <ddiproie...@vmware.com>
I pushed patch to master. Thanks. > --- > INSTALL.DPDK | 40 +++++++++++++--------------------------- > 1 file changed, 13 insertions(+), 27 deletions(-) > > diff --git a/INSTALL.DPDK b/INSTALL.DPDK > index 7484b4b..0d19012 100644 > --- a/INSTALL.DPDK > +++ b/INSTALL.DPDK > @@ -11,6 +11,8 @@ It has not been thoroughly tested. > This version of Open vSwitch should be built manually with "configure" > and "make". > > +OVS needs a system with 1GB hugepages support. > + > Building and Installing: > ------------------------ > > @@ -44,6 +46,12 @@ cd $(OVS_DIR)/openvswitch > ./configure --with-dpdk=$DPDK_BUILD > make > > +To have better performance one can enable aggressive compiler optimizations > and > +use the special instructions(popcnt, crc32) that may not be available on all > +machines. Instead of typing 'make', type: > + > +make CFLAGS='-O3 -march=native' > + > Refer to INSTALL.userspace for general requirements of building > userspace OVS. > > @@ -60,24 +68,6 @@ First setup DPDK devices: > e.g. insmod $DPDK_BUILD/kmod/igb_uio.ko > - Bind network device to igb_uio. > e.g. $DPDK_DIR/tools/dpdk_nic_bind.py --bind=igb_uio eth1 > - Alternate binding method: > - Find target Ethernet devices > - lspci -nn|grep Ethernet > - Bring Down (e.g. eth2, eth3) > - ifconfig eth2 down > - ifconfig eth3 down > - Look at current devices (e.g ixgbe devices) > - ls /sys/bus/pci/drivers/ixgbe/ > - 0000:02:00.0 0000:02:00.1 bind module new_id remove_id uevent > unbind > - Unbind target pci devices from current driver (e.g. 02:00.0 ...) > - echo 0000:02:00.0 > /sys/bus/pci/drivers/ixgbe/unbind > - echo 0000:02:00.1 > /sys/bus/pci/drivers/ixgbe/unbind > - Bind to target driver (e.g. igb_uio) > - echo 0000:02:00.0 > /sys/bus/pci/drivers/igb_uio/bind > - echo 0000:02:00.1 > /sys/bus/pci/drivers/igb_uio/bind > - Check binding for listed devices > - ls /sys/bus/pci/drivers/igb_uio > - 0000:02:00.0 0000:02:00.1 bind module new_id remove_id uevent > unbind > > Prepare system: > - mount hugetlbfs > @@ -124,11 +114,11 @@ node 0 memory: > To use ovs-vswitchd with DPDK, create a bridge with datapath_type > "netdev" in the configuration database. For example: > > - ovs-vsctl add-br br0 > - ovs-vsctl set bridge br0 datapath_type=netdev > + ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev > > Now you can add dpdk devices. OVS expect DPDK device name start with dpdk > -and end with portid. vswitchd should print number of dpdk devices found. > +and end with portid. vswitchd should print (in the log file) the number of > dpdk > +devices found. > > ovs-vsctl add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk > ovs-vsctl add-port br0 dpdk1 -- set Interface dpdk1 type=dpdk > @@ -138,8 +128,6 @@ polls dpdk device in continuous loop. Therefore CPU > utilization > for that thread is always 100%. > > Test flow script across NICs (assuming ovs in /usr/src/ovs): > - Assume 1.1.1.1 on NIC port 1 (dpdk0) > - Assume 1.1.1.2 on NIC port 2 (dpdk1) > Execute script: > > ############################# Script: > @@ -152,10 +140,8 @@ cd /usr/src/ovs/utilities/ > ./ovs-ofctl del-flows br0 > > # Add flows between port 1 (dpdk0) to port 2 (dpdk1) > -./ovs-ofctl add-flow br0 in_port=1,dl_type=0x800,nw_src=1.1.1.1,\ > -nw_dst=1.1.1.2,idle_timeout=0,action=output:2 > -./ovs-ofctl add-flow br0 in_port=2,dl_type=0x800,nw_src=1.1.1.2,\ > -nw_dst=1.1.1.1,idle_timeout=0,action=output:1 > +./ovs-ofctl add-flow br0 in_port=1,action=output:2 > +./ovs-ofctl add-flow br0 in_port=2,action=output:1 > > ###################################### > > -- > 2.1.0.rc1 > > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
