On Wed, Dec 16, 2020 at 9:41 PM Richardson, Bruce <[email protected]> wrote: > > > > > -----Original Message----- > > From: Tonghao Zhang <[email protected]> > > Sent: Wednesday, December 16, 2020 1:58 AM > > To: Richardson, Bruce <[email protected]> > > Cc: Ilya Maximets <[email protected]>; Pai G, Sunil > > <[email protected]>; ovs dev <[email protected]>; David Marchand > > <[email protected]>; Stokes, Ian <[email protected]> > > Subject: Re: [ovs-dev] [PATCH dpdk-latest v4] build: Add support for DPDK > > meson build. > > > > On Tue, Dec 15, 2020 at 9:38 PM Richardson, Bruce > > <[email protected]> wrote: > > > > > > <snip> > > > > > > > > > Hi Ilya > > > > > > I tested the patch > > > > > > https://patchwork.ozlabs.org/project/openvswitch/patch/1607977825- > > > > 30877-1- > > > > > > [email protected]/ > > > > > > As I said if we update the pkg-conf to new version. and we config > > the > > > > > > ovs --with-dpdk=static, ovs works fine. > > > > > > but if we build ovs --with-dpdk=shared, ovs doesn't work, there is > > > > error > > > > > > log: > > > > > > 2020-12-14T20:15:07.940Z|00018|dpdk|INFO|EAL ARGS: ovs-vswitchd -a > > > > > > > > > > > > 0000:82:00.0,dv_flow_en=1,dv_esw_en=1,l3_vxlan_en=1,dv_xmeta_en=2,represen > > > > > > tor=[0-6] > > > > > > -c 0xe --huge-dir /dev/hugepages --socket-mem 1024,1024 --socket- > > limit > > > > > > 1024,1024. > > > > > > 2020-12-14T20:15:07.946Z|00019|dpdk|INFO|EAL: Detected 56 lcore(s) > > > > > > 2020-12-14T20:15:07.946Z|00020|dpdk|INFO|EAL: Detected 2 NUMA > > nodes > > > > > > 2020-12-14T20:15:07.946Z|00021|dpdk|ERR|EAL: failed to parse > > device > > > > > > "0000:82:00.0" > > > > > > 2020-12-14T20:15:07.946Z|00022|dpdk|ERR|EAL: Unable to parse > > device > > > > > > > > > > > > '0000:82:00.0,dv_flow_en=1,dv_esw_en=1,l3_vxlan_en=1,dv_xmeta_en=2,represe > > > > > > ntor=[0-6]' > > > > > > 2020-12-14T20:15:07.946Z|00023|dpdk|EMER|Unable to initialize > > DPDK: No > > > > > > such device > > > > > > > > > > > > because pci bus was not registered. > > > > > > > > > > > > In dpdk: > > > > > > eal_plugins_init > > > > > > rte_pci_scan > > > > > > eal_option_device_parse -- no pci bus > > > > > > > > > > > > > > > > > > > > > > Is DPDK installed systemwide so that the drivers - including pci bus > > > > > driver - can be picked up automatically on init? If not, you may > > well > > > > > need to pass the path to the drivers via the "-d" flag on startup. > > > > Hi > > > > I build ovs, shown as below: > > > > > > > > export DPDK_TARGET=x86_64-native-linuxapp-gcc > > > > meson -Dprefix=/root/local/dpdk-next-net -Dmax_ethports=256 > > > > -Dbuildtype=debug > > > > -Ddisable_drivers=event/*,net/tap,net/nfb,net/mlx4,crypto/* > > > > $DPDK_TARGET > > > > ninja -C $DPDK_TARGET install > > > > ldconfig > > > > > > > > export LD_LIBRARY_PATH=/root/local/dpdk-next- > > net/lib64:$LD_LIBRARY_PATH > > > > export PKG_CONFIG_PATH=/root/local/dpdk-next- > > > > net/lib64/pkgconfig/:$PKG_CONFIG_PATH > > > > ./configure --enable-Werror --prefix=/root/local/openvswitch-2.14 > > > > --disable-ssl --disable-libcapng --with-dpdk=shared 'CFLAGS=-g -O0 > > > > -Wno-deprecated-declarations' > > > > make && make install > > > > > > > > One question if we export LD_LIBRARY_PATH, we also use "-d" flag ? > > > > > > > > > Regards, > > > > > /Bruce > > > > > > In the case above, I think the drivers should all be loaded > > automatically > > > from "/root/local/dpdk-next-net/lib64/dpdk/pmds-21.0/". The > > RTE_EAL_PMD_PATH > > > should point to that location. > > > > > > To verify, can you check the "rte_build_config.h" file in your DPDK > > build, > > > and confirm that the path given there for RTE_EAL_PMD_PATH corresponds > > to > > > the path where the actual driver .so files are installed? > > In the rte_build_config.h: > > #define RTE_EAL_PMD_PATH "/root/local/dpdk-next-net/lib64/dpdk/pmds-21.1" > > > That looks a correct path. Can you confirm that the actual pmd .so files are > in that directory on your system? Yes, librte_net_mlx5.so librte_common_mlx5.so
But note that there is not mlx5 so the ldd output ldd /root/local/openvswitch-2.14/sbin/ovs-vswitchd | grep -i mlx5 I debugged it and found that pci was not in bus_list, so pci device was not attached to ovs. -- Best regards, Tonghao _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
