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net/colo-compare.c: Expose compare "max_queue_size" to users

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This patch allow users to set the "max_queue_size" according
to their environment.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Zhang Chen 2020-06-24 09:20:41 +08:00 • committed by Jason Wang
parent 9a8d949245
commit a2e5cb7a87
2 changed files with 45 additions and 3 deletions
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5
qemu-options.hx
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@ -4695,7 +4695,7 @@ SRST
stored. The file format is libpcap, so it can be analyzed with
tools such as tcpdump or Wireshark.
``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}``
``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}][,max_queue_size=@var{size}]``
Colo-compare gets packet from primary\_inchardevid and
secondary\_inchardevid, than compare primary packet with
secondary packet. If the packets are same, we will output
@ -4707,7 +4707,8 @@ SRST
vnet\_hdr\_len. Then compare\_timeout=@var{ms} determines the
maximum delay colo-compare wait for the packet.
The expired\_scan\_cycle=@var{ms} to set the period of scanning
expired primary node network packets.
expired primary node network packets. The max\_queue\_size=@var{size}
is to set the max compare queue size depend on user environment.
If you want to use Xen COLO, will need the notify\_dev to
notify Xen colo-frame to do checkpoint.