Just share with you the solution I found from dpdk dev mail list: make sure qemu flag to map the memory as shared, i.e.: -object memory-backend-file,id=mem,size=1024M,mem-path=/mnt/huge,share=on (the keyword is share=on)
the document has to mention this. Thanks, Tim 在 2015-05-23 12:11:22，"Tim Deng" <[email protected]> 写道： > >Hi, > >I am using the latest ovs code base to try vhost user based on Ciara Loftus's >patch >("[PATCH v4] netdev-dpdk: add dpdk vhost-user ports" which is not in ovs >upstream yet). > >things go smoothly during VM bootstrap, as I can see following logs: >VHOST_CONFIG: new virtio connection is 47 >VHOST_CONFIG: new device, handle is 0 >VHOST_CONFIG: read message VHOST_USER_SET_OWNER >VHOST_CONFIG: read message VHOST_USER_GET_FEATURES >VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL >VHOST_CONFIG: vring call idx:0 file:48 >VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL >VHOST_CONFIG: vring call idx:1 file:49 >VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL >VHOST_CONFIG: vring call idx:0 file:50 >VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL >VHOST_CONFIG: vring call idx:1 file:48 >VHOST_CONFIG: read message VHOST_USER_SET_FEATURES >VHOST_CONFIG: (0) Mergeable RX buffers disabled >VHOST_CONFIG: read message VHOST_USER_SET_MEM_TABLE >VHOST_CONFIG: mapped region 0 fd:49 to 0x7f6740000000 sz:0xa0000 off:0x0 >VHOST_CONFIG: REGION: 0 GPA: (nil) QEMU VA: 0x7f7340000000 SIZE (655360) >VHOST_CONFIG: mapped region 1 fd:51 to 0x7f6700000000 sz:0x40000000 off:0xc0000 >VHOST_CONFIG: REGION: 1 GPA: 0xc0000 QEMU VA: 0x7f73400c0000 SIZE (1072955392) >VHOST_CONFIG: read message VHOST_USER_SET_VRING_NUM >VHOST_CONFIG: read message VHOST_USER_SET_VRING_BASE >VHOST_CONFIG: read message VHOST_USER_SET_VRING_ADDR >VHOST_CONFIG: (0) mapped address desc: 0x7f6739fdc000 >VHOST_CONFIG: (0) mapped address avail: 0x7f6739fdd000 >VHOST_CONFIG: (0) mapped address used: 0x7f6739fde000 >VHOST_CONFIG: read message VHOST_USER_SET_VRING_KICK >VHOST_CONFIG: vring kick idx:0 file:52 >VHOST_CONFIG: virtio isn't ready for processing. >VHOST_CONFIG: read message VHOST_USER_SET_VRING_NUM >VHOST_CONFIG: read message VHOST_USER_SET_VRING_BASE >VHOST_CONFIG: read message VHOST_USER_SET_VRING_ADDR >VHOST_CONFIG: (0) mapped address desc: 0x7f6739fb4000 >VHOST_CONFIG: (0) mapped address avail: 0x7f6739fb5000 >VHOST_CONFIG: (0) mapped address used: 0x7f6739fb6000 >VHOST_CONFIG: read message VHOST_USER_SET_VRING_KICK >VHOST_CONFIG: vring kick idx:1 file:53 >VHOST_CONFIG: virtio is now ready for processing. >2015-05-23T04:02:33Z|00001|dpdk(vhost_thread2)|INFO|vHost Device >'/usr/local/var/run/openvswitch/dpdkvhostuser0' (0) has been added > >However I cannot see any packet was polled afterwards even I generated some >traffic inside the VM. > >My host and VM are using 3.19.0-15-generic, and qemu 2.2.0 is used. > >Could any one please share any hint? > >Thanks, >Tim _______________________________________________ dev mailing list [email protected] http://openvswitch.org/mailman/listinfo/dev
