colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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/*
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* COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
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* (a.k.a. Fault Tolerance or Continuous Replication)
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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* Copyright (c) 2016 FUJITSU LIMITED
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* Copyright (c) 2016 Intel Corporation
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*
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* Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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2019-05-23 14:35:08 +00:00
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#include "qemu-common.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#include "qemu/error-report.h"
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2016-09-27 02:22:27 +00:00
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#include "trace.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#include "qapi/error.h"
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#include "net/net.h"
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2016-09-27 02:22:31 +00:00
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#include "net/eth.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#include "qom/object_interfaces.h"
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#include "qemu/iov.h"
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#include "qom/object.h"
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#include "net/queue.h"
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2017-01-26 14:26:44 +00:00
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#include "chardev/char-fe.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#include "qemu/sockets.h"
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2018-05-03 19:50:56 +00:00
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#include "colo.h"
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2017-08-29 07:22:38 +00:00
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#include "sysemu/iothread.h"
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2018-09-03 04:38:43 +00:00
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#include "net/colo-compare.h"
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#include "migration/colo.h"
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2018-09-03 04:38:44 +00:00
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#include "migration/migration.h"
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2018-11-14 12:36:40 +00:00
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#include "util.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
#include "block/aio-wait.h"
|
|
|
|
#include "qemu/coroutine.h"
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
#define TYPE_COLO_COMPARE "colo-compare"
|
2020-09-03 20:43:22 +00:00
|
|
|
typedef struct CompareState CompareState;
|
2020-08-31 21:07:33 +00:00
|
|
|
DECLARE_INSTANCE_CHECKER(CompareState, COLO_COMPARE,
|
|
|
|
TYPE_COLO_COMPARE)
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
2018-09-03 04:38:43 +00:00
|
|
|
static QTAILQ_HEAD(, CompareState) net_compares =
|
|
|
|
QTAILQ_HEAD_INITIALIZER(net_compares);
|
|
|
|
|
2018-09-03 04:38:44 +00:00
|
|
|
static NotifierList colo_compare_notifiers =
|
|
|
|
NOTIFIER_LIST_INITIALIZER(colo_compare_notifiers);
|
|
|
|
|
2016-09-27 02:22:30 +00:00
|
|
|
#define COMPARE_READ_LEN_MAX NET_BUFSIZE
|
2016-09-27 02:22:29 +00:00
|
|
|
#define MAX_QUEUE_SIZE 1024
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
#define COLO_COMPARE_FREE_PRIMARY 0x01
|
|
|
|
#define COLO_COMPARE_FREE_SECONDARY 0x02
|
|
|
|
|
2020-10-16 05:52:08 +00:00
|
|
|
#define REGULAR_PACKET_CHECK_MS 1000
|
2020-03-18 08:23:19 +00:00
|
|
|
#define DEFAULT_TIME_OUT_MS 3000
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2020-07-17 09:35:17 +00:00
|
|
|
/* #define DEBUG_COLO_PACKETS */
|
|
|
|
|
2020-05-22 07:53:55 +00:00
|
|
|
static QemuMutex colo_compare_mutex;
|
|
|
|
static bool colo_compare_active;
|
2018-09-03 04:38:43 +00:00
|
|
|
static QemuMutex event_mtx;
|
|
|
|
static QemuCond event_complete_cond;
|
|
|
|
static int event_unhandled_count;
|
2020-06-24 01:20:41 +00:00
|
|
|
static uint32_t max_queue_size;
|
2018-09-03 04:38:43 +00:00
|
|
|
|
2016-09-27 02:22:27 +00:00
|
|
|
/*
|
2017-09-05 06:31:06 +00:00
|
|
|
* + CompareState ++
|
|
|
|
* | |
|
|
|
|
* +---------------+ +---------------+ +---------------+
|
|
|
|
* | conn list + - > conn + ------- > conn + -- > ......
|
|
|
|
* +---------------+ +---------------+ +---------------+
|
|
|
|
* | | | | | |
|
|
|
|
* +---------------+ +---v----+ +---v----+ +---v----+ +---v----+
|
|
|
|
* |primary | |secondary |primary | |secondary
|
|
|
|
* |packet | |packet + |packet | |packet +
|
|
|
|
* +--------+ +--------+ +--------+ +--------+
|
|
|
|
* | | | |
|
|
|
|
* +---v----+ +---v----+ +---v----+ +---v----+
|
|
|
|
* |primary | |secondary |primary | |secondary
|
|
|
|
* |packet | |packet + |packet | |packet +
|
|
|
|
* +--------+ +--------+ +--------+ +--------+
|
|
|
|
* | | | |
|
|
|
|
* +---v----+ +---v----+ +---v----+ +---v----+
|
|
|
|
* |primary | |secondary |primary | |secondary
|
|
|
|
* |packet | |packet + |packet | |packet +
|
|
|
|
* +--------+ +--------+ +--------+ +--------+
|
|
|
|
*/
|
2020-05-22 07:53:53 +00:00
|
|
|
|
|
|
|
typedef struct SendCo {
|
|
|
|
Coroutine *co;
|
|
|
|
struct CompareState *s;
|
|
|
|
CharBackend *chr;
|
|
|
|
GQueue send_list;
|
|
|
|
bool notify_remote_frame;
|
|
|
|
bool done;
|
|
|
|
int ret;
|
|
|
|
} SendCo;
|
|
|
|
|
|
|
|
typedef struct SendEntry {
|
|
|
|
uint32_t size;
|
|
|
|
uint32_t vnet_hdr_len;
|
|
|
|
uint8_t *buf;
|
|
|
|
} SendEntry;
|
|
|
|
|
2020-09-03 20:43:22 +00:00
|
|
|
struct CompareState {
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
Object parent;
|
|
|
|
|
|
|
|
char *pri_indev;
|
|
|
|
char *sec_indev;
|
|
|
|
char *outdev;
|
2019-06-09 16:44:29 +00:00
|
|
|
char *notify_dev;
|
2016-10-22 09:52:52 +00:00
|
|
|
CharBackend chr_pri_in;
|
|
|
|
CharBackend chr_sec_in;
|
|
|
|
CharBackend chr_out;
|
2019-06-09 16:44:30 +00:00
|
|
|
CharBackend chr_notify_dev;
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
SocketReadState pri_rs;
|
|
|
|
SocketReadState sec_rs;
|
2019-06-09 16:44:30 +00:00
|
|
|
SocketReadState notify_rs;
|
2020-05-22 07:53:53 +00:00
|
|
|
SendCo out_sendco;
|
|
|
|
SendCo notify_sendco;
|
2017-07-04 06:53:52 +00:00
|
|
|
bool vnet_hdr;
|
2020-10-16 05:52:05 +00:00
|
|
|
uint64_t compare_timeout;
|
2020-03-18 08:23:20 +00:00
|
|
|
uint32_t expired_scan_cycle;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2017-09-05 06:31:06 +00:00
|
|
|
/*
|
|
|
|
* Record the connection that through the NIC
|
|
|
|
* Element type: Connection
|
2016-09-27 02:22:29 +00:00
|
|
|
*/
|
|
|
|
GQueue conn_list;
|
2017-09-05 06:31:06 +00:00
|
|
|
/* Record the connection without repetition */
|
2016-09-27 02:22:27 +00:00
|
|
|
GHashTable *connection_track_table;
|
2017-02-17 02:53:12 +00:00
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
IOThread *iothread;
|
2017-02-17 02:53:14 +00:00
|
|
|
GMainContext *worker_context;
|
2017-08-29 07:22:38 +00:00
|
|
|
QEMUTimer *packet_check_timer;
|
2018-09-03 04:38:43 +00:00
|
|
|
|
|
|
|
QEMUBH *event_bh;
|
|
|
|
enum colo_event event;
|
|
|
|
|
|
|
|
QTAILQ_ENTRY(CompareState) next;
|
2020-09-03 20:43:22 +00:00
|
|
|
};
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
|
|
|
typedef struct CompareClass {
|
|
|
|
ObjectClass parent_class;
|
|
|
|
} CompareClass;
|
|
|
|
|
2016-09-27 02:22:27 +00:00
|
|
|
enum {
|
|
|
|
PRIMARY_IN = 0,
|
|
|
|
SECONDARY_IN,
|
|
|
|
};
|
|
|
|
|
2020-05-22 07:53:57 +00:00
|
|
|
static const char *colo_mode[] = {
|
|
|
|
[PRIMARY_IN] = "primary",
|
|
|
|
[SECONDARY_IN] = "secondary",
|
|
|
|
};
|
2018-09-03 04:38:57 +00:00
|
|
|
|
2017-07-04 06:53:51 +00:00
|
|
|
static int compare_chr_send(CompareState *s,
|
2020-05-22 07:53:53 +00:00
|
|
|
uint8_t *buf,
|
2017-07-04 06:53:52 +00:00
|
|
|
uint32_t size,
|
2019-06-09 16:44:31 +00:00
|
|
|
uint32_t vnet_hdr_len,
|
2020-05-22 07:53:53 +00:00
|
|
|
bool notify_remote_frame,
|
|
|
|
bool zero_copy);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2019-07-22 17:18:28 +00:00
|
|
|
static bool packet_matches_str(const char *str,
|
|
|
|
const uint8_t *buf,
|
|
|
|
uint32_t packet_len)
|
|
|
|
{
|
|
|
|
if (packet_len != strlen(str)) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2021-11-01 07:56:59 +00:00
|
|
|
return !memcmp(str, buf, packet_len);
|
2019-07-22 17:18:28 +00:00
|
|
|
}
|
|
|
|
|
2019-06-09 16:44:32 +00:00
|
|
|
static void notify_remote_frame(CompareState *s)
|
|
|
|
{
|
|
|
|
char msg[] = "DO_CHECKPOINT";
|
|
|
|
int ret = 0;
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
ret = compare_chr_send(s, (uint8_t *)msg, strlen(msg), 0, true, false);
|
2019-06-09 16:44:32 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
error_report("Notify Xen COLO-frame failed");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void colo_compare_inconsistency_notify(CompareState *s)
|
|
|
|
{
|
|
|
|
if (s->notify_dev) {
|
|
|
|
notify_remote_frame(s);
|
|
|
|
} else {
|
|
|
|
notifier_list_notify(&colo_compare_notifiers,
|
|
|
|
migrate_get_current());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-10-16 05:52:00 +00:00
|
|
|
/* Use restricted to colo_insert_packet() */
|
2017-01-24 08:53:46 +00:00
|
|
|
static gint seq_sorter(Packet *a, Packet *b, gpointer data)
|
|
|
|
{
|
2022-01-14 05:09:00 +00:00
|
|
|
return b->tcp_seq - a->tcp_seq;
|
2017-01-24 08:53:46 +00:00
|
|
|
}
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
static void fill_pkt_tcp_info(void *data, uint32_t *max_ack)
|
|
|
|
{
|
|
|
|
Packet *pkt = data;
|
2018-11-14 12:36:40 +00:00
|
|
|
struct tcp_hdr *tcphd;
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
|
2018-11-14 12:36:40 +00:00
|
|
|
tcphd = (struct tcp_hdr *)pkt->transport_header;
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
|
|
|
|
pkt->tcp_seq = ntohl(tcphd->th_seq);
|
|
|
|
pkt->tcp_ack = ntohl(tcphd->th_ack);
|
2021-11-18 03:20:10 +00:00
|
|
|
/* Need to consider ACK will bigger than uint32_t MAX */
|
|
|
|
*max_ack = pkt->tcp_ack - *max_ack > 0 ? pkt->tcp_ack : *max_ack;
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
pkt->header_size = pkt->transport_header - (uint8_t *)pkt->data
|
2021-06-08 08:23:31 +00:00
|
|
|
+ (tcphd->th_off << 2);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
pkt->payload_size = pkt->size - pkt->header_size;
|
|
|
|
pkt->seq_end = pkt->tcp_seq + pkt->payload_size;
|
|
|
|
pkt->flags = tcphd->th_flags;
|
|
|
|
}
|
|
|
|
|
2017-10-13 06:32:06 +00:00
|
|
|
/*
|
|
|
|
* Return 1 on success, if return 0 means the
|
|
|
|
* packet will be dropped
|
|
|
|
*/
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
static int colo_insert_packet(GQueue *queue, Packet *pkt, uint32_t *max_ack)
|
2017-10-13 06:32:06 +00:00
|
|
|
{
|
2020-06-24 01:20:41 +00:00
|
|
|
if (g_queue_get_length(queue) <= max_queue_size) {
|
2017-10-13 06:32:06 +00:00
|
|
|
if (pkt->ip->ip_p == IPPROTO_TCP) {
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
fill_pkt_tcp_info(pkt, max_ack);
|
2017-10-13 06:32:06 +00:00
|
|
|
g_queue_insert_sorted(queue,
|
|
|
|
pkt,
|
|
|
|
(GCompareDataFunc)seq_sorter,
|
|
|
|
NULL);
|
|
|
|
} else {
|
|
|
|
g_queue_push_tail(queue, pkt);
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:27 +00:00
|
|
|
/*
|
|
|
|
* Return 0 on success, if return -1 means the pkt
|
|
|
|
* is unsupported(arp and ipv6) and will be sent later
|
|
|
|
*/
|
2017-10-13 06:32:07 +00:00
|
|
|
static int packet_enqueue(CompareState *s, int mode, Connection **con)
|
2016-09-27 02:22:27 +00:00
|
|
|
{
|
2016-09-27 02:22:29 +00:00
|
|
|
ConnectionKey key;
|
2016-09-27 02:22:27 +00:00
|
|
|
Packet *pkt = NULL;
|
2016-09-27 02:22:29 +00:00
|
|
|
Connection *conn;
|
2020-05-22 07:53:57 +00:00
|
|
|
int ret;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
|
|
|
if (mode == PRIMARY_IN) {
|
2017-07-04 06:53:50 +00:00
|
|
|
pkt = packet_new(s->pri_rs.buf,
|
|
|
|
s->pri_rs.packet_len,
|
|
|
|
s->pri_rs.vnet_hdr_len);
|
2016-09-27 02:22:27 +00:00
|
|
|
} else {
|
2017-07-04 06:53:50 +00:00
|
|
|
pkt = packet_new(s->sec_rs.buf,
|
|
|
|
s->sec_rs.packet_len,
|
|
|
|
s->sec_rs.vnet_hdr_len);
|
2016-09-27 02:22:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (parse_packet_early(pkt)) {
|
|
|
|
packet_destroy(pkt, NULL);
|
|
|
|
pkt = NULL;
|
|
|
|
return -1;
|
|
|
|
}
|
2021-11-03 02:21:12 +00:00
|
|
|
fill_connection_key(pkt, &key, false);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
conn = connection_get(s->connection_track_table,
|
|
|
|
&key,
|
|
|
|
&s->conn_list);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
if (!conn->processing) {
|
|
|
|
g_queue_push_tail(&s->conn_list, conn);
|
|
|
|
conn->processing = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mode == PRIMARY_IN) {
|
2020-05-22 07:53:57 +00:00
|
|
|
ret = colo_insert_packet(&conn->primary_list, pkt, &conn->pack);
|
2016-09-27 02:22:29 +00:00
|
|
|
} else {
|
2020-05-22 07:53:57 +00:00
|
|
|
ret = colo_insert_packet(&conn->secondary_list, pkt, &conn->sack);
|
2016-09-27 02:22:29 +00:00
|
|
|
}
|
2020-05-22 07:53:57 +00:00
|
|
|
|
|
|
|
if (!ret) {
|
|
|
|
trace_colo_compare_drop_packet(colo_mode[mode],
|
|
|
|
"queue size too big, drop packet");
|
|
|
|
packet_destroy(pkt, NULL);
|
|
|
|
pkt = NULL;
|
|
|
|
}
|
|
|
|
|
2017-11-16 02:28:32 +00:00
|
|
|
*con = conn;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
static inline bool after(uint32_t seq1, uint32_t seq2)
|
|
|
|
{
|
|
|
|
return (int32_t)(seq1 - seq2) > 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void colo_release_primary_pkt(CompareState *s, Packet *pkt)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
ret = compare_chr_send(s,
|
|
|
|
pkt->data,
|
|
|
|
pkt->size,
|
2019-06-09 16:44:31 +00:00
|
|
|
pkt->vnet_hdr_len,
|
2020-05-22 07:53:53 +00:00
|
|
|
false,
|
|
|
|
true);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
error_report("colo send primary packet failed");
|
|
|
|
}
|
|
|
|
trace_colo_compare_main("packet same and release packet");
|
2020-05-22 07:53:53 +00:00
|
|
|
packet_destroy_partial(pkt, NULL);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:30 +00:00
|
|
|
/*
|
|
|
|
* The IP packets sent by primary and secondary
|
|
|
|
* will be compared in here
|
|
|
|
* TODO support ip fragment, Out-Of-Order
|
|
|
|
* return: 0 means packet same
|
|
|
|
* > 0 || < 0 means packet different
|
|
|
|
*/
|
2017-12-25 02:54:11 +00:00
|
|
|
static int colo_compare_packet_payload(Packet *ppkt,
|
|
|
|
Packet *spkt,
|
|
|
|
uint16_t poffset,
|
|
|
|
uint16_t soffset,
|
|
|
|
uint16_t len)
|
|
|
|
|
2016-09-27 02:22:30 +00:00
|
|
|
{
|
2020-07-17 09:35:17 +00:00
|
|
|
if (trace_event_get_state_backends(TRACE_COLO_COMPARE_IP_INFO)) {
|
2017-03-09 07:40:07 +00:00
|
|
|
char pri_ip_src[20], pri_ip_dst[20], sec_ip_src[20], sec_ip_dst[20];
|
|
|
|
|
|
|
|
strcpy(pri_ip_src, inet_ntoa(ppkt->ip->ip_src));
|
|
|
|
strcpy(pri_ip_dst, inet_ntoa(ppkt->ip->ip_dst));
|
|
|
|
strcpy(sec_ip_src, inet_ntoa(spkt->ip->ip_src));
|
|
|
|
strcpy(sec_ip_dst, inet_ntoa(spkt->ip->ip_dst));
|
|
|
|
|
|
|
|
trace_colo_compare_ip_info(ppkt->size, pri_ip_src,
|
|
|
|
pri_ip_dst, spkt->size,
|
|
|
|
sec_ip_src, sec_ip_dst);
|
|
|
|
}
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2017-12-25 02:54:11 +00:00
|
|
|
return memcmp(ppkt->data + poffset, spkt->data + soffset, len);
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:31 +00:00
|
|
|
/*
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
* return true means that the payload is consist and
|
|
|
|
* need to make the next comparison, false means do
|
|
|
|
* the checkpoint
|
|
|
|
*/
|
|
|
|
static bool colo_mark_tcp_pkt(Packet *ppkt, Packet *spkt,
|
|
|
|
int8_t *mark, uint32_t max_ack)
|
2016-09-27 02:22:30 +00:00
|
|
|
{
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
*mark = 0;
|
|
|
|
|
|
|
|
if (ppkt->tcp_seq == spkt->tcp_seq && ppkt->seq_end == spkt->seq_end) {
|
2019-09-24 14:08:29 +00:00
|
|
|
if (!colo_compare_packet_payload(ppkt, spkt,
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
ppkt->header_size, spkt->header_size,
|
|
|
|
ppkt->payload_size)) {
|
|
|
|
*mark = COLO_COMPARE_FREE_SECONDARY | COLO_COMPARE_FREE_PRIMARY;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
2016-09-27 02:22:31 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
/* one part of secondary packet payload still need to be compared */
|
|
|
|
if (!after(ppkt->seq_end, spkt->seq_end)) {
|
2019-09-24 14:08:29 +00:00
|
|
|
if (!colo_compare_packet_payload(ppkt, spkt,
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
ppkt->header_size + ppkt->offset,
|
|
|
|
spkt->header_size + spkt->offset,
|
|
|
|
ppkt->payload_size - ppkt->offset)) {
|
|
|
|
if (!after(ppkt->tcp_ack, max_ack)) {
|
|
|
|
*mark = COLO_COMPARE_FREE_PRIMARY;
|
|
|
|
spkt->offset += ppkt->payload_size - ppkt->offset;
|
|
|
|
return true;
|
|
|
|
} else {
|
|
|
|
/* secondary guest hasn't ack the data, don't send
|
|
|
|
* out this packet
|
|
|
|
*/
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* primary packet is longer than secondary packet, compare
|
|
|
|
* the same part and mark the primary packet offset
|
|
|
|
*/
|
2019-09-24 14:08:29 +00:00
|
|
|
if (!colo_compare_packet_payload(ppkt, spkt,
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
ppkt->header_size + ppkt->offset,
|
|
|
|
spkt->header_size + spkt->offset,
|
|
|
|
spkt->payload_size - spkt->offset)) {
|
|
|
|
*mark = COLO_COMPARE_FREE_SECONDARY;
|
|
|
|
ppkt->offset += spkt->payload_size - spkt->offset;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
2017-03-02 09:54:16 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
static void colo_compare_tcp(CompareState *s, Connection *conn)
|
|
|
|
{
|
|
|
|
Packet *ppkt = NULL, *spkt = NULL;
|
|
|
|
int8_t mark;
|
2016-09-27 02:22:31 +00:00
|
|
|
|
|
|
|
/*
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
* If ppkt and spkt have the same payload, but ppkt's ACK
|
|
|
|
* is greater than spkt's ACK, in this case we can not
|
|
|
|
* send the ppkt because it will cause the secondary guest
|
|
|
|
* to miss sending some data in the next. Therefore, we
|
|
|
|
* record the maximum ACK in the current queue at both
|
|
|
|
* primary side and secondary side. Only when the ack is
|
|
|
|
* less than the smaller of the two maximum ack, then we
|
|
|
|
* can ensure that the packet's payload is acknowledged by
|
|
|
|
* primary and secondary.
|
|
|
|
*/
|
2021-11-18 03:20:10 +00:00
|
|
|
uint32_t min_ack = conn->pack - conn->sack > 0 ?
|
|
|
|
conn->sack : conn->pack;
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
|
|
|
|
pri:
|
|
|
|
if (g_queue_is_empty(&conn->primary_list)) {
|
|
|
|
return;
|
|
|
|
}
|
2022-01-14 05:09:00 +00:00
|
|
|
ppkt = g_queue_pop_tail(&conn->primary_list);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
sec:
|
|
|
|
if (g_queue_is_empty(&conn->secondary_list)) {
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&conn->primary_list, ppkt);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
return;
|
2016-09-27 02:22:31 +00:00
|
|
|
}
|
2022-01-14 05:09:00 +00:00
|
|
|
spkt = g_queue_pop_tail(&conn->secondary_list);
|
2016-09-27 02:22:31 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (ppkt->tcp_seq == ppkt->seq_end) {
|
|
|
|
colo_release_primary_pkt(s, ppkt);
|
|
|
|
ppkt = NULL;
|
|
|
|
}
|
2017-12-25 02:54:11 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (ppkt && conn->compare_seq && !after(ppkt->seq_end, conn->compare_seq)) {
|
|
|
|
trace_colo_compare_main("pri: this packet has compared");
|
|
|
|
colo_release_primary_pkt(s, ppkt);
|
|
|
|
ppkt = NULL;
|
|
|
|
}
|
2017-12-25 02:54:11 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (spkt->tcp_seq == spkt->seq_end) {
|
|
|
|
packet_destroy(spkt, NULL);
|
|
|
|
if (!ppkt) {
|
|
|
|
goto pri;
|
|
|
|
} else {
|
|
|
|
goto sec;
|
|
|
|
}
|
2017-03-02 09:54:17 +00:00
|
|
|
} else {
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (conn->compare_seq && !after(spkt->seq_end, conn->compare_seq)) {
|
|
|
|
trace_colo_compare_main("sec: this packet has compared");
|
|
|
|
packet_destroy(spkt, NULL);
|
|
|
|
if (!ppkt) {
|
|
|
|
goto pri;
|
|
|
|
} else {
|
|
|
|
goto sec;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!ppkt) {
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&conn->secondary_list, spkt);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
goto pri;
|
|
|
|
}
|
2017-03-02 09:54:17 +00:00
|
|
|
}
|
2016-09-27 02:22:31 +00:00
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
if (colo_mark_tcp_pkt(ppkt, spkt, &mark, min_ack)) {
|
|
|
|
trace_colo_compare_tcp_info("pri",
|
|
|
|
ppkt->tcp_seq, ppkt->tcp_ack,
|
|
|
|
ppkt->header_size, ppkt->payload_size,
|
|
|
|
ppkt->offset, ppkt->flags);
|
|
|
|
|
|
|
|
trace_colo_compare_tcp_info("sec",
|
|
|
|
spkt->tcp_seq, spkt->tcp_ack,
|
|
|
|
spkt->header_size, spkt->payload_size,
|
|
|
|
spkt->offset, spkt->flags);
|
|
|
|
|
|
|
|
if (mark == COLO_COMPARE_FREE_PRIMARY) {
|
|
|
|
conn->compare_seq = ppkt->seq_end;
|
|
|
|
colo_release_primary_pkt(s, ppkt);
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&conn->secondary_list, spkt);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
goto pri;
|
2020-10-16 05:52:04 +00:00
|
|
|
} else if (mark == COLO_COMPARE_FREE_SECONDARY) {
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
conn->compare_seq = spkt->seq_end;
|
|
|
|
packet_destroy(spkt, NULL);
|
|
|
|
goto sec;
|
2020-10-16 05:52:04 +00:00
|
|
|
} else if (mark == (COLO_COMPARE_FREE_PRIMARY | COLO_COMPARE_FREE_SECONDARY)) {
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
conn->compare_seq = ppkt->seq_end;
|
|
|
|
colo_release_primary_pkt(s, ppkt);
|
|
|
|
packet_destroy(spkt, NULL);
|
|
|
|
goto pri;
|
|
|
|
}
|
|
|
|
} else {
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&conn->primary_list, ppkt);
|
|
|
|
g_queue_push_tail(&conn->secondary_list, spkt);
|
2016-10-17 09:23:59 +00:00
|
|
|
|
2020-07-17 09:35:17 +00:00
|
|
|
#ifdef DEBUG_COLO_PACKETS
|
2020-09-12 13:23:15 +00:00
|
|
|
qemu_hexdump(stderr, "colo-compare ppkt", ppkt->data, ppkt->size);
|
|
|
|
qemu_hexdump(stderr, "colo-compare spkt", spkt->data, spkt->size);
|
2020-07-17 09:35:17 +00:00
|
|
|
#endif
|
2016-09-27 02:22:31 +00:00
|
|
|
|
2019-06-09 16:44:32 +00:00
|
|
|
colo_compare_inconsistency_notify(s);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
}
|
2016-09-27 02:22:31 +00:00
|
|
|
}
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
|
2016-09-27 02:22:31 +00:00
|
|
|
/*
|
|
|
|
* Called from the compare thread on the primary
|
|
|
|
* for compare udp packet
|
|
|
|
*/
|
|
|
|
static int colo_packet_compare_udp(Packet *spkt, Packet *ppkt)
|
|
|
|
{
|
2017-12-25 02:54:11 +00:00
|
|
|
uint16_t network_header_length = ppkt->ip->ip_hl << 2;
|
|
|
|
uint16_t offset = network_header_length + ETH_HLEN + ppkt->vnet_hdr_len;
|
2016-09-27 02:22:31 +00:00
|
|
|
|
|
|
|
trace_colo_compare_main("compare udp");
|
2017-03-02 09:54:16 +00:00
|
|
|
|
2017-03-02 09:54:17 +00:00
|
|
|
/*
|
|
|
|
* Because of ppkt and spkt are both in the same connection,
|
|
|
|
* The ppkt's src ip, dst ip, src port, dst port, ip_proto all are
|
|
|
|
* same with spkt. In addition, IP header's Identification is a random
|
|
|
|
* field, we can handle it in IP fragmentation function later.
|
|
|
|
* COLO just concern the response net packet payload from primary guest
|
|
|
|
* and secondary guest are same or not, So we ignored all IP header include
|
|
|
|
* other field like TOS,TTL,IP Checksum. we only need to compare
|
|
|
|
* the ip payload here.
|
|
|
|
*/
|
2017-12-25 02:54:11 +00:00
|
|
|
if (ppkt->size != spkt->size) {
|
|
|
|
trace_colo_compare_main("UDP: payload size of packets are different");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (colo_compare_packet_payload(ppkt, spkt, offset, offset,
|
|
|
|
ppkt->size - offset)) {
|
2016-09-27 02:22:31 +00:00
|
|
|
trace_colo_compare_udp_miscompare("primary pkt size", ppkt->size);
|
|
|
|
trace_colo_compare_udp_miscompare("Secondary pkt size", spkt->size);
|
2020-07-17 09:35:17 +00:00
|
|
|
#ifdef DEBUG_COLO_PACKETS
|
2020-09-12 13:23:15 +00:00
|
|
|
qemu_hexdump(stderr, "colo-compare pri pkt", ppkt->data, ppkt->size);
|
|
|
|
qemu_hexdump(stderr, "colo-compare sec pkt", spkt->data, spkt->size);
|
2020-07-17 09:35:17 +00:00
|
|
|
#endif
|
2017-12-25 02:54:11 +00:00
|
|
|
return -1;
|
|
|
|
} else {
|
|
|
|
return 0;
|
2016-09-27 02:22:31 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from the compare thread on the primary
|
|
|
|
* for compare icmp packet
|
|
|
|
*/
|
|
|
|
static int colo_packet_compare_icmp(Packet *spkt, Packet *ppkt)
|
|
|
|
{
|
2017-12-25 02:54:11 +00:00
|
|
|
uint16_t network_header_length = ppkt->ip->ip_hl << 2;
|
|
|
|
uint16_t offset = network_header_length + ETH_HLEN + ppkt->vnet_hdr_len;
|
2017-03-02 09:54:17 +00:00
|
|
|
|
2016-09-27 02:22:31 +00:00
|
|
|
trace_colo_compare_main("compare icmp");
|
|
|
|
|
2017-03-02 09:54:17 +00:00
|
|
|
/*
|
|
|
|
* Because of ppkt and spkt are both in the same connection,
|
|
|
|
* The ppkt's src ip, dst ip, src port, dst port, ip_proto all are
|
|
|
|
* same with spkt. In addition, IP header's Identification is a random
|
|
|
|
* field, we can handle it in IP fragmentation function later.
|
|
|
|
* COLO just concern the response net packet payload from primary guest
|
|
|
|
* and secondary guest are same or not, So we ignored all IP header include
|
|
|
|
* other field like TOS,TTL,IP Checksum. we only need to compare
|
|
|
|
* the ip payload here.
|
|
|
|
*/
|
2017-12-25 02:54:11 +00:00
|
|
|
if (ppkt->size != spkt->size) {
|
|
|
|
trace_colo_compare_main("ICMP: payload size of packets are different");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (colo_compare_packet_payload(ppkt, spkt, offset, offset,
|
|
|
|
ppkt->size - offset)) {
|
2016-09-27 02:22:31 +00:00
|
|
|
trace_colo_compare_icmp_miscompare("primary pkt size",
|
|
|
|
ppkt->size);
|
|
|
|
trace_colo_compare_icmp_miscompare("Secondary pkt size",
|
|
|
|
spkt->size);
|
2020-07-17 09:35:17 +00:00
|
|
|
#ifdef DEBUG_COLO_PACKETS
|
2020-09-12 13:23:15 +00:00
|
|
|
qemu_hexdump(stderr, "colo-compare pri pkt", ppkt->data, ppkt->size);
|
|
|
|
qemu_hexdump(stderr, "colo-compare sec pkt", spkt->data, spkt->size);
|
2020-07-17 09:35:17 +00:00
|
|
|
#endif
|
2016-09-27 02:22:31 +00:00
|
|
|
return -1;
|
|
|
|
} else {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from the compare thread on the primary
|
|
|
|
* for compare other packet
|
|
|
|
*/
|
|
|
|
static int colo_packet_compare_other(Packet *spkt, Packet *ppkt)
|
|
|
|
{
|
2017-12-25 02:54:11 +00:00
|
|
|
uint16_t offset = ppkt->vnet_hdr_len;
|
|
|
|
|
2016-09-27 02:22:31 +00:00
|
|
|
trace_colo_compare_main("compare other");
|
2017-12-25 02:54:11 +00:00
|
|
|
if (ppkt->size != spkt->size) {
|
|
|
|
trace_colo_compare_main("Other: payload size of packets are different");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return colo_compare_packet_payload(ppkt, spkt, offset, offset,
|
|
|
|
ppkt->size - offset);
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int colo_old_packet_check_one(Packet *pkt, int64_t *check_time)
|
|
|
|
{
|
|
|
|
int64_t now = qemu_clock_get_ms(QEMU_CLOCK_HOST);
|
|
|
|
|
|
|
|
if ((now - pkt->creation_ms) > (*check_time)) {
|
|
|
|
trace_colo_old_packet_check_found(pkt->creation_ms);
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-09-03 04:38:44 +00:00
|
|
|
void colo_compare_register_notifier(Notifier *notify)
|
|
|
|
{
|
|
|
|
notifier_list_add(&colo_compare_notifiers, notify);
|
|
|
|
}
|
|
|
|
|
|
|
|
void colo_compare_unregister_notifier(Notifier *notify)
|
|
|
|
{
|
|
|
|
notifier_remove(notify);
|
|
|
|
}
|
|
|
|
|
2017-04-12 12:12:07 +00:00
|
|
|
static int colo_old_packet_check_one_conn(Connection *conn,
|
2019-06-09 16:44:32 +00:00
|
|
|
CompareState *s)
|
2016-09-27 02:22:30 +00:00
|
|
|
{
|
2020-10-16 05:52:07 +00:00
|
|
|
if (!g_queue_is_empty(&conn->primary_list)) {
|
|
|
|
if (g_queue_find_custom(&conn->primary_list,
|
|
|
|
&s->compare_timeout,
|
|
|
|
(GCompareFunc)colo_old_packet_check_one))
|
|
|
|
goto out;
|
|
|
|
}
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2020-10-16 05:52:07 +00:00
|
|
|
if (!g_queue_is_empty(&conn->secondary_list)) {
|
|
|
|
if (g_queue_find_custom(&conn->secondary_list,
|
|
|
|
&s->compare_timeout,
|
|
|
|
(GCompareFunc)colo_old_packet_check_one))
|
|
|
|
goto out;
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
2017-04-12 12:12:07 +00:00
|
|
|
|
|
|
|
return 1;
|
2020-10-16 05:52:07 +00:00
|
|
|
|
|
|
|
out:
|
|
|
|
/* Do checkpoint will flush old packet */
|
|
|
|
colo_compare_inconsistency_notify(s);
|
|
|
|
return 0;
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Look for old packets that the secondary hasn't matched,
|
|
|
|
* if we have some then we have to checkpoint to wake
|
|
|
|
* the secondary up.
|
|
|
|
*/
|
|
|
|
static void colo_old_packet_check(void *opaque)
|
|
|
|
{
|
|
|
|
CompareState *s = opaque;
|
|
|
|
|
2017-04-12 12:12:07 +00:00
|
|
|
/*
|
|
|
|
* If we find one old packet, stop finding job and notify
|
|
|
|
* COLO frame do checkpoint.
|
|
|
|
*/
|
2019-06-09 16:44:32 +00:00
|
|
|
g_queue_find_custom(&s->conn_list, s,
|
2017-04-12 12:12:07 +00:00
|
|
|
(GCompareFunc)colo_old_packet_check_one_conn);
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
static void colo_compare_packet(CompareState *s, Connection *conn,
|
|
|
|
int (*HandlePacket)(Packet *spkt,
|
|
|
|
Packet *ppkt))
|
2016-09-27 02:22:30 +00:00
|
|
|
{
|
|
|
|
Packet *pkt = NULL;
|
|
|
|
GList *result = NULL;
|
|
|
|
|
|
|
|
while (!g_queue_is_empty(&conn->primary_list) &&
|
|
|
|
!g_queue_is_empty(&conn->secondary_list)) {
|
2022-01-14 05:09:00 +00:00
|
|
|
pkt = g_queue_pop_tail(&conn->primary_list);
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
result = g_queue_find_custom(&conn->secondary_list,
|
|
|
|
pkt, (GCompareFunc)HandlePacket);
|
2016-09-27 02:22:30 +00:00
|
|
|
|
|
|
|
if (result) {
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
colo_release_primary_pkt(s, pkt);
|
2021-03-18 04:11:51 +00:00
|
|
|
packet_destroy(result->data, NULL);
|
2021-03-18 04:11:52 +00:00
|
|
|
g_queue_delete_link(&conn->secondary_list, result);
|
2016-09-27 02:22:30 +00:00
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* If one packet arrive late, the secondary_list or
|
|
|
|
* primary_list will be empty, so we can't compare it
|
2018-09-03 04:38:44 +00:00
|
|
|
* until next comparison. If the packets in the list are
|
|
|
|
* timeout, it will trigger a checkpoint request.
|
2016-09-27 02:22:30 +00:00
|
|
|
*/
|
|
|
|
trace_colo_compare_main("packet different");
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&conn->primary_list, pkt);
|
2019-06-09 16:44:32 +00:00
|
|
|
|
|
|
|
colo_compare_inconsistency_notify(s);
|
2016-09-27 02:22:30 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
colo: compare the packet based on the tcp sequence number
Packet size some time different or when network is busy.
Based on same payload size, but TCP protocol can not
guarantee send the same one packet in the same way,
like that:
We send this payload:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
primary:
ppkt1:
----------------
| header |1|2|3|
----------------
ppkt2:
------------------------
| header |4|5|6|7|8|9|0|
------------------------
secondary:
spkt1:
------------------------------
| header |1|2|3|4|5|6|7|8|9|0|
------------------------------
In the original method, ppkt1 and ppkt2 are different in size and
spkt1, so they can't compare and trigger the checkpoint.
I have tested FTP get 200M and 1G file many times, I found that
the performance was less than 1% of the native.
Now I reconstructed the comparison of TCP packets based on the
TCP sequence number. first of all, ppkt1 and spkt1 have the same
starting sequence number, so they can compare, even though their
length is different. And then ppkt1 with a smaller payload length
is used as the comparison length, if the payload is same, send
out the ppkt1 and record the offset(the length of ppkt1 payload)
in spkt1. The next comparison, ppkt2 and spkt1 can be compared
from the recorded position of spkt1.
like that:
----------------
| header |1|2|3| ppkt1
---------|-----|
| |
---------v-----v--------------
| header |1|2|3|4|5|6|7|8|9|0| spkt1
---------------|\------------|
| \offset |
---------v-------------v
| header |4|5|6|7|8|9|0| ppkt2
------------------------
In this way, the performance can reach native 20% in my multiple
tests.
Cc: Zhang Chen <zhangckid@gmail.com>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Tested-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-12-25 02:54:12 +00:00
|
|
|
/*
|
|
|
|
* Called from the compare thread on the primary
|
|
|
|
* for compare packet with secondary list of the
|
|
|
|
* specified connection when a new packet was
|
|
|
|
* queued to it.
|
|
|
|
*/
|
|
|
|
static void colo_compare_connection(void *opaque, void *user_data)
|
|
|
|
{
|
|
|
|
CompareState *s = user_data;
|
|
|
|
Connection *conn = opaque;
|
|
|
|
|
|
|
|
switch (conn->ip_proto) {
|
|
|
|
case IPPROTO_TCP:
|
|
|
|
colo_compare_tcp(s, conn);
|
|
|
|
break;
|
|
|
|
case IPPROTO_UDP:
|
|
|
|
colo_compare_packet(s, conn, colo_packet_compare_udp);
|
|
|
|
break;
|
|
|
|
case IPPROTO_ICMP:
|
|
|
|
colo_compare_packet(s, conn, colo_packet_compare_icmp);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
colo_compare_packet(s, conn, colo_packet_compare_other);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
static void coroutine_fn _compare_chr_send(void *opaque)
|
2016-09-27 02:22:27 +00:00
|
|
|
{
|
2020-05-22 07:53:53 +00:00
|
|
|
SendCo *sendco = opaque;
|
|
|
|
CompareState *s = sendco->s;
|
2016-09-27 02:22:27 +00:00
|
|
|
int ret = 0;
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
while (!g_queue_is_empty(&sendco->send_list)) {
|
|
|
|
SendEntry *entry = g_queue_pop_tail(&sendco->send_list);
|
|
|
|
uint32_t len = htonl(entry->size);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
ret = qemu_chr_fe_write_all(sendco->chr, (uint8_t *)&len, sizeof(len));
|
2019-06-09 16:44:31 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
if (ret != sizeof(len)) {
|
|
|
|
g_free(entry->buf);
|
|
|
|
g_slice_free(SendEntry, entry);
|
|
|
|
goto err;
|
|
|
|
}
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
if (!sendco->notify_remote_frame && s->vnet_hdr) {
|
|
|
|
/*
|
|
|
|
* We send vnet header len make other module(like filter-redirector)
|
|
|
|
* know how to parse net packet correctly.
|
|
|
|
*/
|
|
|
|
len = htonl(entry->vnet_hdr_len);
|
2019-06-09 16:44:31 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
ret = qemu_chr_fe_write_all(sendco->chr,
|
2019-06-09 16:44:31 +00:00
|
|
|
(uint8_t *)&len,
|
|
|
|
sizeof(len));
|
2020-05-22 07:53:53 +00:00
|
|
|
|
|
|
|
if (ret != sizeof(len)) {
|
|
|
|
g_free(entry->buf);
|
|
|
|
g_slice_free(SendEntry, entry);
|
|
|
|
goto err;
|
|
|
|
}
|
2019-06-09 16:44:31 +00:00
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
ret = qemu_chr_fe_write_all(sendco->chr,
|
|
|
|
(uint8_t *)entry->buf,
|
|
|
|
entry->size);
|
|
|
|
|
|
|
|
if (ret != entry->size) {
|
|
|
|
g_free(entry->buf);
|
|
|
|
g_slice_free(SendEntry, entry);
|
2017-07-04 06:53:52 +00:00
|
|
|
goto err;
|
|
|
|
}
|
2020-05-22 07:53:53 +00:00
|
|
|
|
|
|
|
g_free(entry->buf);
|
|
|
|
g_slice_free(SendEntry, entry);
|
2017-07-04 06:53:52 +00:00
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
sendco->ret = 0;
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
err:
|
|
|
|
while (!g_queue_is_empty(&sendco->send_list)) {
|
|
|
|
SendEntry *entry = g_queue_pop_tail(&sendco->send_list);
|
|
|
|
g_free(entry->buf);
|
|
|
|
g_slice_free(SendEntry, entry);
|
|
|
|
}
|
|
|
|
sendco->ret = ret < 0 ? ret : -EIO;
|
|
|
|
out:
|
|
|
|
sendco->co = NULL;
|
|
|
|
sendco->done = true;
|
|
|
|
aio_wait_kick();
|
|
|
|
}
|
|
|
|
|
|
|
|
static int compare_chr_send(CompareState *s,
|
|
|
|
uint8_t *buf,
|
|
|
|
uint32_t size,
|
|
|
|
uint32_t vnet_hdr_len,
|
|
|
|
bool notify_remote_frame,
|
|
|
|
bool zero_copy)
|
|
|
|
{
|
|
|
|
SendCo *sendco;
|
|
|
|
SendEntry *entry;
|
|
|
|
|
2019-06-09 16:44:31 +00:00
|
|
|
if (notify_remote_frame) {
|
2020-05-22 07:53:53 +00:00
|
|
|
sendco = &s->notify_sendco;
|
2019-06-09 16:44:31 +00:00
|
|
|
} else {
|
2020-05-22 07:53:53 +00:00
|
|
|
sendco = &s->out_sendco;
|
2019-06-09 16:44:31 +00:00
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
if (!size) {
|
2021-11-18 03:20:11 +00:00
|
|
|
return -1;
|
2016-09-27 02:22:27 +00:00
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
entry = g_slice_new(SendEntry);
|
|
|
|
entry->size = size;
|
|
|
|
entry->vnet_hdr_len = vnet_hdr_len;
|
|
|
|
if (zero_copy) {
|
|
|
|
entry->buf = buf;
|
|
|
|
} else {
|
|
|
|
entry->buf = g_malloc(size);
|
|
|
|
memcpy(entry->buf, buf, size);
|
|
|
|
}
|
2022-01-14 05:09:00 +00:00
|
|
|
g_queue_push_tail(&sendco->send_list, entry);
|
2020-05-22 07:53:53 +00:00
|
|
|
|
|
|
|
if (sendco->done) {
|
|
|
|
sendco->co = qemu_coroutine_create(_compare_chr_send, sendco);
|
|
|
|
sendco->done = false;
|
|
|
|
qemu_coroutine_enter(sendco->co);
|
|
|
|
if (sendco->done) {
|
|
|
|
/* report early errors */
|
|
|
|
return sendco->ret;
|
|
|
|
}
|
|
|
|
}
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
/* assume success */
|
|
|
|
return 0;
|
2016-09-27 02:22:27 +00:00
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:30 +00:00
|
|
|
static int compare_chr_can_read(void *opaque)
|
|
|
|
{
|
|
|
|
return COMPARE_READ_LEN_MAX;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from the main thread on the primary for packets
|
|
|
|
* arriving over the socket from the primary.
|
|
|
|
*/
|
|
|
|
static void compare_pri_chr_in(void *opaque, const uint8_t *buf, int size)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(opaque);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = net_fill_rstate(&s->pri_rs, buf, size);
|
|
|
|
if (ret == -1) {
|
2017-07-06 12:08:49 +00:00
|
|
|
qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL,
|
2016-10-22 09:53:03 +00:00
|
|
|
NULL, NULL, true);
|
2016-09-27 02:22:30 +00:00
|
|
|
error_report("colo-compare primary_in error");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from the main thread on the primary for packets
|
|
|
|
* arriving over the socket from the secondary.
|
|
|
|
*/
|
|
|
|
static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(opaque);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = net_fill_rstate(&s->sec_rs, buf, size);
|
|
|
|
if (ret == -1) {
|
2017-07-06 12:08:49 +00:00
|
|
|
qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL,
|
2016-10-22 09:53:03 +00:00
|
|
|
NULL, NULL, true);
|
2016-09-27 02:22:30 +00:00
|
|
|
error_report("colo-compare secondary_in error");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-06-09 16:44:30 +00:00
|
|
|
static void compare_notify_chr(void *opaque, const uint8_t *buf, int size)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(opaque);
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = net_fill_rstate(&s->notify_rs, buf, size);
|
|
|
|
if (ret == -1) {
|
|
|
|
qemu_chr_fe_set_handlers(&s->chr_notify_dev, NULL, NULL, NULL, NULL,
|
|
|
|
NULL, NULL, true);
|
|
|
|
error_report("colo-compare notify_dev error");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-02-17 02:53:11 +00:00
|
|
|
/*
|
|
|
|
* Check old packet regularly so it can watch for any packets
|
|
|
|
* that the secondary hasn't produced equivalents of.
|
|
|
|
*/
|
2017-08-29 07:22:38 +00:00
|
|
|
static void check_old_packet_regular(void *opaque)
|
2017-02-17 02:53:11 +00:00
|
|
|
{
|
|
|
|
CompareState *s = opaque;
|
|
|
|
|
|
|
|
/* if have old packet we will notify checkpoint */
|
|
|
|
colo_old_packet_check(s);
|
2020-10-16 05:52:06 +00:00
|
|
|
timer_mod(s->packet_check_timer, qemu_clock_get_ms(QEMU_CLOCK_HOST) +
|
2020-03-18 08:23:20 +00:00
|
|
|
s->expired_scan_cycle);
|
2017-08-29 07:22:38 +00:00
|
|
|
}
|
|
|
|
|
2018-09-03 04:38:43 +00:00
|
|
|
/* Public API, Used for COLO frame to notify compare event */
|
|
|
|
void colo_notify_compares_event(void *opaque, int event, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s;
|
2020-05-22 07:53:55 +00:00
|
|
|
qemu_mutex_lock(&colo_compare_mutex);
|
|
|
|
|
|
|
|
if (!colo_compare_active) {
|
|
|
|
qemu_mutex_unlock(&colo_compare_mutex);
|
|
|
|
return;
|
|
|
|
}
|
2018-09-03 04:38:43 +00:00
|
|
|
|
|
|
|
qemu_mutex_lock(&event_mtx);
|
|
|
|
QTAILQ_FOREACH(s, &net_compares, next) {
|
|
|
|
s->event = event;
|
|
|
|
qemu_bh_schedule(s->event_bh);
|
|
|
|
event_unhandled_count++;
|
|
|
|
}
|
|
|
|
/* Wait all compare threads to finish handling this event */
|
|
|
|
while (event_unhandled_count > 0) {
|
|
|
|
qemu_cond_wait(&event_complete_cond, &event_mtx);
|
|
|
|
}
|
|
|
|
|
|
|
|
qemu_mutex_unlock(&event_mtx);
|
2020-05-22 07:53:55 +00:00
|
|
|
qemu_mutex_unlock(&colo_compare_mutex);
|
2018-09-03 04:38:43 +00:00
|
|
|
}
|
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
static void colo_compare_timer_init(CompareState *s)
|
|
|
|
{
|
|
|
|
AioContext *ctx = iothread_get_aio_context(s->iothread);
|
2017-02-17 02:53:11 +00:00
|
|
|
|
2020-10-16 05:52:06 +00:00
|
|
|
s->packet_check_timer = aio_timer_new(ctx, QEMU_CLOCK_HOST,
|
2017-08-29 07:22:38 +00:00
|
|
|
SCALE_MS, check_old_packet_regular,
|
|
|
|
s);
|
2020-10-16 05:52:06 +00:00
|
|
|
timer_mod(s->packet_check_timer, qemu_clock_get_ms(QEMU_CLOCK_HOST) +
|
2020-03-18 08:23:20 +00:00
|
|
|
s->expired_scan_cycle);
|
2017-02-17 02:53:11 +00:00
|
|
|
}
|
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
static void colo_compare_timer_del(CompareState *s)
|
2016-09-27 02:22:30 +00:00
|
|
|
{
|
2017-08-29 07:22:38 +00:00
|
|
|
if (s->packet_check_timer) {
|
|
|
|
timer_free(s->packet_check_timer);
|
|
|
|
s->packet_check_timer = NULL;
|
|
|
|
}
|
|
|
|
}
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2018-09-03 04:38:43 +00:00
|
|
|
static void colo_flush_packets(void *opaque, void *user_data);
|
|
|
|
|
|
|
|
static void colo_compare_handle_event(void *opaque)
|
|
|
|
{
|
|
|
|
CompareState *s = opaque;
|
|
|
|
|
|
|
|
switch (s->event) {
|
|
|
|
case COLO_EVENT_CHECKPOINT:
|
|
|
|
g_queue_foreach(&s->conn_list, colo_flush_packets, s);
|
|
|
|
break;
|
|
|
|
case COLO_EVENT_FAILOVER:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
qemu_mutex_lock(&event_mtx);
|
2019-04-20 17:14:25 +00:00
|
|
|
assert(event_unhandled_count > 0);
|
2018-09-03 04:38:43 +00:00
|
|
|
event_unhandled_count--;
|
|
|
|
qemu_cond_broadcast(&event_complete_cond);
|
|
|
|
qemu_mutex_unlock(&event_mtx);
|
|
|
|
}
|
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
static void colo_compare_iothread(CompareState *s)
|
|
|
|
{
|
2020-05-22 07:53:51 +00:00
|
|
|
AioContext *ctx = iothread_get_aio_context(s->iothread);
|
2017-08-29 07:22:38 +00:00
|
|
|
object_ref(OBJECT(s->iothread));
|
|
|
|
s->worker_context = iothread_get_g_main_context(s->iothread);
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2016-10-22 09:52:55 +00:00
|
|
|
qemu_chr_fe_set_handlers(&s->chr_pri_in, compare_chr_can_read,
|
2017-07-06 12:08:49 +00:00
|
|
|
compare_pri_chr_in, NULL, NULL,
|
|
|
|
s, s->worker_context, true);
|
2016-10-22 09:52:55 +00:00
|
|
|
qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read,
|
2017-07-06 12:08:49 +00:00
|
|
|
compare_sec_chr_in, NULL, NULL,
|
|
|
|
s, s->worker_context, true);
|
2019-06-09 16:44:30 +00:00
|
|
|
if (s->notify_dev) {
|
|
|
|
qemu_chr_fe_set_handlers(&s->chr_notify_dev, compare_chr_can_read,
|
|
|
|
compare_notify_chr, NULL, NULL,
|
|
|
|
s, s->worker_context, true);
|
|
|
|
}
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
colo_compare_timer_init(s);
|
2020-05-22 07:53:51 +00:00
|
|
|
s->event_bh = aio_bh_new(ctx, colo_compare_handle_event, s);
|
2016-09-27 02:22:30 +00:00
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
static char *compare_get_pri_indev(Object *obj, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
return g_strdup(s->pri_indev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_pri_indev(Object *obj, const char *value, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
g_free(s->pri_indev);
|
|
|
|
s->pri_indev = g_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *compare_get_sec_indev(Object *obj, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
return g_strdup(s->sec_indev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_sec_indev(Object *obj, const char *value, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
g_free(s->sec_indev);
|
|
|
|
s->sec_indev = g_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *compare_get_outdev(Object *obj, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
return g_strdup(s->outdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_outdev(Object *obj, const char *value, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
g_free(s->outdev);
|
|
|
|
s->outdev = g_strdup(value);
|
|
|
|
}
|
|
|
|
|
2017-07-04 06:53:52 +00:00
|
|
|
static bool compare_get_vnet_hdr(Object *obj, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
return s->vnet_hdr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_vnet_hdr(Object *obj,
|
|
|
|
bool value,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
s->vnet_hdr = value;
|
|
|
|
}
|
|
|
|
|
2019-06-09 16:44:29 +00:00
|
|
|
static char *compare_get_notify_dev(Object *obj, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
return g_strdup(s->notify_dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_notify_dev(Object *obj, const char *value, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
|
|
|
g_free(s->notify_dev);
|
|
|
|
s->notify_dev = g_strdup(value);
|
|
|
|
}
|
|
|
|
|
2020-03-18 08:23:19 +00:00
|
|
|
static void compare_get_timeout(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
2020-10-16 05:52:05 +00:00
|
|
|
uint64_t value = s->compare_timeout;
|
2020-03-18 08:23:19 +00:00
|
|
|
|
2020-10-16 05:52:05 +00:00
|
|
|
visit_type_uint64(v, name, &value, errp);
|
2020-03-18 08:23:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_timeout(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
uint32_t value;
|
|
|
|
|
error: Eliminate error_propagate() with Coccinelle, part 1
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away. Convert
if (!foo(..., &err)) {
...
error_propagate(errp, err);
...
return ...
}
to
if (!foo(..., errp)) {
...
...
return ...
}
where nothing else needs @err. Coccinelle script:
@rule1 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
binary operator op;
constant c1, c2;
symbol false;
@@
if (
(
- fun(args, &err, args2)
+ fun(args, errp, args2)
|
- !fun(args, &err, args2)
+ !fun(args, errp, args2)
|
- fun(args, &err, args2) op c1
+ fun(args, errp, args2) op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
)
}
@rule2 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
expression var;
binary operator op;
constant c1, c2;
symbol false;
@@
- var = fun(args, &err, args2);
+ var = fun(args, errp, args2);
... when != err
if (
(
var
|
!var
|
var op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
|
return var;
)
}
@depends on rule1 || rule2@
identifier err;
@@
- Error *err = NULL;
... when != err
Not exactly elegant, I'm afraid.
The "when != lbl:" is necessary to avoid transforming
if (fun(args, &err)) {
goto out
}
...
out:
error_propagate(errp, err);
even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().
Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly. I don't know what exactly "when strict" does, only that
it helps here.
The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err". For
an example where it's too narrow, see vfio_intx_enable().
Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there. Converted manually.
Line breaks tidied up manually. One nested declaration of @local_err
deleted manually. Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-07 16:06:02 +00:00
|
|
|
if (!visit_type_uint32(v, name, &value, errp)) {
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
return;
|
2020-03-18 08:23:19 +00:00
|
|
|
}
|
|
|
|
if (!value) {
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
error_setg(errp, "Property '%s.%s' requires a positive value",
|
2020-03-18 08:23:19 +00:00
|
|
|
object_get_typename(obj), name);
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
return;
|
2020-03-18 08:23:19 +00:00
|
|
|
}
|
|
|
|
s->compare_timeout = value;
|
|
|
|
}
|
|
|
|
|
2020-03-18 08:23:20 +00:00
|
|
|
static void compare_get_expired_scan_cycle(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
uint32_t value = s->expired_scan_cycle;
|
|
|
|
|
|
|
|
visit_type_uint32(v, name, &value, errp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_set_expired_scan_cycle(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
uint32_t value;
|
|
|
|
|
error: Eliminate error_propagate() with Coccinelle, part 1
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away. Convert
if (!foo(..., &err)) {
...
error_propagate(errp, err);
...
return ...
}
to
if (!foo(..., errp)) {
...
...
return ...
}
where nothing else needs @err. Coccinelle script:
@rule1 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
binary operator op;
constant c1, c2;
symbol false;
@@
if (
(
- fun(args, &err, args2)
+ fun(args, errp, args2)
|
- !fun(args, &err, args2)
+ !fun(args, errp, args2)
|
- fun(args, &err, args2) op c1
+ fun(args, errp, args2) op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
)
}
@rule2 forall@
identifier fun, err, errp, lbl;
expression list args, args2;
expression var;
binary operator op;
constant c1, c2;
symbol false;
@@
- var = fun(args, &err, args2);
+ var = fun(args, errp, args2);
... when != err
if (
(
var
|
!var
|
var op c1
)
)
{
... when != err
when != lbl:
when strict
- error_propagate(errp, err);
... when != err
(
return;
|
return c2;
|
return false;
|
return var;
)
}
@depends on rule1 || rule2@
identifier err;
@@
- Error *err = NULL;
... when != err
Not exactly elegant, I'm afraid.
The "when != lbl:" is necessary to avoid transforming
if (fun(args, &err)) {
goto out
}
...
out:
error_propagate(errp, err);
even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().
Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly. I don't know what exactly "when strict" does, only that
it helps here.
The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err". For
an example where it's too narrow, see vfio_intx_enable().
Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there. Converted manually.
Line breaks tidied up manually. One nested declaration of @local_err
deleted manually. Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-07 16:06:02 +00:00
|
|
|
if (!visit_type_uint32(v, name, &value, errp)) {
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
return;
|
2020-03-18 08:23:20 +00:00
|
|
|
}
|
|
|
|
if (!value) {
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
error_setg(errp, "Property '%s.%s' requires a positive value",
|
2020-03-18 08:23:20 +00:00
|
|
|
object_get_typename(obj), name);
|
error: Avoid unnecessary error_propagate() after error_setg()
Replace
error_setg(&err, ...);
error_propagate(errp, err);
by
error_setg(errp, ...);
Related pattern:
if (...) {
error_setg(&err, ...);
goto out;
}
...
out:
error_propagate(errp, err);
return;
When all paths to label out are that way, replace by
if (...) {
error_setg(errp, ...);
return;
}
and delete the label along with the error_propagate().
When we have at most one other path that actually needs to propagate,
and maybe one at the end that where propagation is unnecessary, e.g.
foo(..., &err);
if (err) {
goto out;
}
...
bar(..., &err);
out:
error_propagate(errp, err);
return;
move the error_propagate() to where it's needed, like
if (...) {
foo(..., &err);
error_propagate(errp, err);
return;
}
...
bar(..., errp);
return;
and transform the error_setg() as above.
In some places, the transformation results in obviously unnecessary
error_propagate(). The next few commits will eliminate them.
Bonus: the elimination of gotos will make later patches in this series
easier to review.
Candidates for conversion tracked down with this Coccinelle script:
@@
identifier err, errp;
expression list args;
@@
- error_setg(&err, args);
+ error_setg(errp, args);
... when != err
error_propagate(errp, err);
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-34-armbru@redhat.com>
2020-07-07 16:06:01 +00:00
|
|
|
return;
|
2020-03-18 08:23:20 +00:00
|
|
|
}
|
|
|
|
s->expired_scan_cycle = value;
|
|
|
|
}
|
|
|
|
|
2020-06-24 01:20:41 +00:00
|
|
|
static void get_max_queue_size(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
uint32_t value = max_queue_size;
|
|
|
|
|
|
|
|
visit_type_uint32(v, name, &value, errp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void set_max_queue_size(Object *obj, Visitor *v,
|
|
|
|
const char *name, void *opaque,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
Error *local_err = NULL;
|
2020-10-16 05:52:05 +00:00
|
|
|
uint64_t value;
|
2020-06-24 01:20:41 +00:00
|
|
|
|
2020-10-16 05:52:05 +00:00
|
|
|
visit_type_uint64(v, name, &value, &local_err);
|
2020-06-24 01:20:41 +00:00
|
|
|
if (local_err) {
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
if (!value) {
|
|
|
|
error_setg(&local_err, "Property '%s.%s' requires a positive value",
|
|
|
|
object_get_typename(obj), name);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
max_queue_size = value;
|
|
|
|
|
|
|
|
out:
|
|
|
|
error_propagate(errp, local_err);
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
static void compare_pri_rs_finalize(SocketReadState *pri_rs)
|
|
|
|
{
|
2016-09-27 02:22:27 +00:00
|
|
|
CompareState *s = container_of(pri_rs, CompareState, pri_rs);
|
2017-10-13 06:32:07 +00:00
|
|
|
Connection *conn = NULL;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2017-10-13 06:32:07 +00:00
|
|
|
if (packet_enqueue(s, PRIMARY_IN, &conn)) {
|
2016-09-27 02:22:27 +00:00
|
|
|
trace_colo_compare_main("primary: unsupported packet in");
|
2017-07-04 06:53:52 +00:00
|
|
|
compare_chr_send(s,
|
|
|
|
pri_rs->buf,
|
|
|
|
pri_rs->packet_len,
|
2019-06-09 16:44:31 +00:00
|
|
|
pri_rs->vnet_hdr_len,
|
2020-05-22 07:53:53 +00:00
|
|
|
false,
|
2019-06-09 16:44:31 +00:00
|
|
|
false);
|
2016-09-27 02:22:30 +00:00
|
|
|
} else {
|
2017-10-13 06:32:08 +00:00
|
|
|
/* compare packet in the specified connection */
|
2017-10-13 06:32:07 +00:00
|
|
|
colo_compare_connection(conn, s);
|
2016-09-27 02:22:27 +00:00
|
|
|
}
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_sec_rs_finalize(SocketReadState *sec_rs)
|
|
|
|
{
|
2016-09-27 02:22:27 +00:00
|
|
|
CompareState *s = container_of(sec_rs, CompareState, sec_rs);
|
2017-10-13 06:32:07 +00:00
|
|
|
Connection *conn = NULL;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2017-10-13 06:32:07 +00:00
|
|
|
if (packet_enqueue(s, SECONDARY_IN, &conn)) {
|
2016-09-27 02:22:27 +00:00
|
|
|
trace_colo_compare_main("secondary: unsupported packet in");
|
2016-09-27 02:22:30 +00:00
|
|
|
} else {
|
2017-10-13 06:32:08 +00:00
|
|
|
/* compare packet in the specified connection */
|
2017-10-13 06:32:07 +00:00
|
|
|
colo_compare_connection(conn, s);
|
2016-09-27 02:22:27 +00:00
|
|
|
}
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
2019-06-09 16:44:30 +00:00
|
|
|
static void compare_notify_rs_finalize(SocketReadState *notify_rs)
|
|
|
|
{
|
2019-06-09 16:44:32 +00:00
|
|
|
CompareState *s = container_of(notify_rs, CompareState, notify_rs);
|
|
|
|
|
2019-07-22 17:18:28 +00:00
|
|
|
const char msg[] = "COLO_COMPARE_GET_XEN_INIT";
|
2019-06-09 16:44:32 +00:00
|
|
|
int ret;
|
|
|
|
|
2019-07-22 17:18:28 +00:00
|
|
|
if (packet_matches_str("COLO_USERSPACE_PROXY_INIT",
|
|
|
|
notify_rs->buf,
|
|
|
|
notify_rs->packet_len)) {
|
2020-05-22 07:53:53 +00:00
|
|
|
ret = compare_chr_send(s, (uint8_t *)msg, strlen(msg), 0, true, false);
|
2019-06-09 16:44:32 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
error_report("Notify Xen COLO-frame INIT failed");
|
|
|
|
}
|
2019-07-22 17:18:28 +00:00
|
|
|
} else if (packet_matches_str("COLO_CHECKPOINT",
|
|
|
|
notify_rs->buf,
|
|
|
|
notify_rs->packet_len)) {
|
2019-06-09 16:44:32 +00:00
|
|
|
/* colo-compare do checkpoint, flush pri packet and remove sec packet */
|
|
|
|
g_queue_foreach(&s->conn_list, colo_flush_packets, s);
|
2019-07-22 17:18:28 +00:00
|
|
|
} else {
|
|
|
|
error_report("COLO compare got unsupported instruction");
|
2019-06-09 16:44:32 +00:00
|
|
|
}
|
2019-06-09 16:44:30 +00:00
|
|
|
}
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Return 0 is success.
|
|
|
|
* Return 1 is failed.
|
|
|
|
*/
|
2016-12-07 13:20:22 +00:00
|
|
|
static int find_and_check_chardev(Chardev **chr,
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
char *chr_name,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
*chr = qemu_chr_find(chr_name);
|
|
|
|
if (*chr == NULL) {
|
|
|
|
error_setg(errp, "Device '%s' not found",
|
|
|
|
chr_name);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
net: don't poke at chardev internal QemuOpts
The vhost-user & colo code is poking at the QemuOpts instance
in the CharDriverState struct, not realizing that it is valid
for this to be NULL. e.g. the following crash shows a codepath
where it will be NULL:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000055baf6ab4adc in qemu_opt_foreach (opts=0x0, func=0x55baf696b650 <net_vhost_chardev_opts>, opaque=0x7ffc51368c00, errp=0x7ffc51368e48) at util/qemu-option.c:617
617 QTAILQ_FOREACH(opt, &opts->head, next) {
[Current thread is 1 (Thread 0x7f1d4970bb40 (LWP 6603))]
(gdb) bt
#0 0x000055baf6ab4adc in qemu_opt_foreach (opts=0x0, func=0x55baf696b650 <net_vhost_chardev_opts>, opaque=0x7ffc51368c00, errp=0x7ffc51368e48) at util/qemu-option.c:617
#1 0x000055baf696b7da in net_vhost_parse_chardev (opts=0x55baf8ff9260, errp=0x7ffc51368e48) at net/vhost-user.c:314
#2 0x000055baf696b985 in net_init_vhost_user (netdev=0x55baf8ff9250, name=0x55baf879d270 "hostnet2", peer=0x0, errp=0x7ffc51368e48) at net/vhost-user.c:360
#3 0x000055baf6960216 in net_client_init1 (object=0x55baf8ff9250, is_netdev=true, errp=0x7ffc51368e48) at net/net.c:1051
#4 0x000055baf6960518 in net_client_init (opts=0x55baf776e7e0, is_netdev=true, errp=0x7ffc51368f00) at net/net.c:1108
#5 0x000055baf696083f in netdev_add (opts=0x55baf776e7e0, errp=0x7ffc51368f00) at net/net.c:1186
#6 0x000055baf69608c7 in qmp_netdev_add (qdict=0x55baf7afaf60, ret=0x7ffc51368f50, errp=0x7ffc51368f48) at net/net.c:1205
#7 0x000055baf6622135 in handle_qmp_command (parser=0x55baf77fb590, tokens=0x7f1d24011960) at /path/to/qemu.git/monitor.c:3978
#8 0x000055baf6a9d099 in json_message_process_token (lexer=0x55baf77fb598, input=0x55baf75acd20, type=JSON_RCURLY, x=113, y=19) at qobject/json-streamer.c:105
#9 0x000055baf6abf7aa in json_lexer_feed_char (lexer=0x55baf77fb598, ch=125 '}', flush=false) at qobject/json-lexer.c:319
#10 0x000055baf6abf8f2 in json_lexer_feed (lexer=0x55baf77fb598, buffer=0x7ffc51369170 "}R\204\367\272U", size=1) at qobject/json-lexer.c:369
#11 0x000055baf6a9d13c in json_message_parser_feed (parser=0x55baf77fb590, buffer=0x7ffc51369170 "}R\204\367\272U", size=1) at qobject/json-streamer.c:124
#12 0x000055baf66221f7 in monitor_qmp_read (opaque=0x55baf77fb530, buf=0x7ffc51369170 "}R\204\367\272U", size=1) at /path/to/qemu.git/monitor.c:3994
#13 0x000055baf6757014 in qemu_chr_be_write_impl (s=0x55baf7610a40, buf=0x7ffc51369170 "}R\204\367\272U", len=1) at qemu-char.c:387
#14 0x000055baf6757076 in qemu_chr_be_write (s=0x55baf7610a40, buf=0x7ffc51369170 "}R\204\367\272U", len=1) at qemu-char.c:399
#15 0x000055baf675b3b0 in tcp_chr_read (chan=0x55baf90244b0, cond=G_IO_IN, opaque=0x55baf7610a40) at qemu-char.c:2927
#16 0x000055baf6a5d655 in qio_channel_fd_source_dispatch (source=0x55baf7610df0, callback=0x55baf675b25a <tcp_chr_read>, user_data=0x55baf7610a40) at io/channel-watch.c:84
#17 0x00007f1d3e80cbbd in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#18 0x000055baf69d3720 in glib_pollfds_poll () at main-loop.c:213
#19 0x000055baf69d37fd in os_host_main_loop_wait (timeout=126000000) at main-loop.c:258
#20 0x000055baf69d38ad in main_loop_wait (nonblocking=0) at main-loop.c:506
#21 0x000055baf676587b in main_loop () at vl.c:1908
#22 0x000055baf676d3bf in main (argc=101, argv=0x7ffc5136a6c8, envp=0x7ffc5136a9f8) at vl.c:4604
(gdb) p opts
$1 = (QemuOpts *) 0x0
The crash occurred when attaching vhost-user net via QMP:
{
"execute": "chardev-add",
"arguments": {
"id": "charnet2",
"backend": {
"type": "socket",
"data": {
"addr": {
"type": "unix",
"data": {
"path": "/var/run/openvswitch/vhost-user1"
}
},
"wait": false,
"server": false
}
}
},
"id": "libvirt-19"
}
{
"return": {
},
"id": "libvirt-19"
}
{
"execute": "netdev_add",
"arguments": {
"type": "vhost-user",
"chardev": "charnet2",
"id": "hostnet2"
},
"id": "libvirt-20"
}
Code using chardevs should not be poking at the internals of the
CharDriverState struct. What vhost-user wants is a chardev that is
operating as reconnectable network service, along with the ability
to do FD passing over the connection. The colo code simply wants
a network service. Add a feature concept to the char drivers so
that chardev users can query the actual features they wish to have
supported. The QemuOpts member is removed to prevent future mistakes
in this area.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-10-07 12:18:34 +00:00
|
|
|
if (!qemu_chr_has_feature(*chr, QEMU_CHAR_FEATURE_RECONNECTABLE)) {
|
|
|
|
error_setg(errp, "chardev \"%s\" is not reconnectable",
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
chr_name);
|
|
|
|
return 1;
|
|
|
|
}
|
2016-10-22 09:52:54 +00:00
|
|
|
|
2018-12-05 20:37:35 +00:00
|
|
|
if (!qemu_chr_has_feature(*chr, QEMU_CHAR_FEATURE_GCONTEXT)) {
|
|
|
|
error_setg(errp, "chardev \"%s\" cannot switch context",
|
|
|
|
chr_name);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from the main thread on the primary
|
|
|
|
* to setup colo-compare.
|
|
|
|
*/
|
|
|
|
static void colo_compare_complete(UserCreatable *uc, Error **errp)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(uc);
|
2016-12-07 13:20:22 +00:00
|
|
|
Chardev *chr;
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
if (!s->pri_indev || !s->sec_indev || !s->outdev || !s->iothread) {
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
error_setg(errp, "colo compare needs 'primary_in' ,"
|
2017-08-29 07:22:38 +00:00
|
|
|
"'secondary_in','outdev','iothread' property set");
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return;
|
|
|
|
} else if (!strcmp(s->pri_indev, s->outdev) ||
|
|
|
|
!strcmp(s->sec_indev, s->outdev) ||
|
|
|
|
!strcmp(s->pri_indev, s->sec_indev)) {
|
|
|
|
error_setg(errp, "'indev' and 'outdev' could not be same "
|
|
|
|
"for compare module");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2020-03-18 08:23:19 +00:00
|
|
|
if (!s->compare_timeout) {
|
|
|
|
/* Set default value to 3000 MS */
|
|
|
|
s->compare_timeout = DEFAULT_TIME_OUT_MS;
|
|
|
|
}
|
|
|
|
|
2020-03-18 08:23:20 +00:00
|
|
|
if (!s->expired_scan_cycle) {
|
|
|
|
/* Set default value to 3000 MS */
|
|
|
|
s->expired_scan_cycle = REGULAR_PACKET_CHECK_MS;
|
|
|
|
}
|
|
|
|
|
2020-06-24 01:20:41 +00:00
|
|
|
if (!max_queue_size) {
|
|
|
|
/* Set default queue size to 1024 */
|
|
|
|
max_queue_size = MAX_QUEUE_SIZE;
|
|
|
|
}
|
|
|
|
|
2016-10-22 09:52:55 +00:00
|
|
|
if (find_and_check_chardev(&chr, s->pri_indev, errp) ||
|
|
|
|
!qemu_chr_fe_init(&s->chr_pri_in, chr, errp)) {
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2016-10-22 09:52:55 +00:00
|
|
|
if (find_and_check_chardev(&chr, s->sec_indev, errp) ||
|
|
|
|
!qemu_chr_fe_init(&s->chr_sec_in, chr, errp)) {
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2016-10-22 09:52:55 +00:00
|
|
|
if (find_and_check_chardev(&chr, s->outdev, errp) ||
|
|
|
|
!qemu_chr_fe_init(&s->chr_out, chr, errp)) {
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2017-07-04 06:53:52 +00:00
|
|
|
net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize, s->vnet_hdr);
|
|
|
|
net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize, s->vnet_hdr);
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
2019-06-09 16:44:30 +00:00
|
|
|
/* Try to enable remote notify chardev, currently just for Xen COLO */
|
|
|
|
if (s->notify_dev) {
|
|
|
|
if (find_and_check_chardev(&chr, s->notify_dev, errp) ||
|
|
|
|
!qemu_chr_fe_init(&s->chr_notify_dev, chr, errp)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
net_socket_rs_init(&s->notify_rs, compare_notify_rs_finalize,
|
|
|
|
s->vnet_hdr);
|
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
s->out_sendco.s = s;
|
|
|
|
s->out_sendco.chr = &s->chr_out;
|
|
|
|
s->out_sendco.notify_remote_frame = false;
|
|
|
|
s->out_sendco.done = true;
|
|
|
|
g_queue_init(&s->out_sendco.send_list);
|
|
|
|
|
|
|
|
if (s->notify_dev) {
|
|
|
|
s->notify_sendco.s = s;
|
|
|
|
s->notify_sendco.chr = &s->chr_notify_dev;
|
|
|
|
s->notify_sendco.notify_remote_frame = true;
|
|
|
|
s->notify_sendco.done = true;
|
|
|
|
g_queue_init(&s->notify_sendco.send_list);
|
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
g_queue_init(&s->conn_list);
|
|
|
|
|
|
|
|
s->connection_track_table = g_hash_table_new_full(connection_key_hash,
|
|
|
|
connection_key_equal,
|
|
|
|
g_free,
|
|
|
|
connection_destroy);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
colo_compare_iothread(s);
|
2020-05-22 07:53:56 +00:00
|
|
|
|
|
|
|
qemu_mutex_lock(&colo_compare_mutex);
|
|
|
|
if (!colo_compare_active) {
|
|
|
|
qemu_mutex_init(&event_mtx);
|
|
|
|
qemu_cond_init(&event_complete_cond);
|
|
|
|
colo_compare_active = true;
|
|
|
|
}
|
|
|
|
QTAILQ_INSERT_TAIL(&net_compares, s, next);
|
|
|
|
qemu_mutex_unlock(&colo_compare_mutex);
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2017-02-17 02:53:12 +00:00
|
|
|
static void colo_flush_packets(void *opaque, void *user_data)
|
|
|
|
{
|
|
|
|
CompareState *s = user_data;
|
|
|
|
Connection *conn = opaque;
|
|
|
|
Packet *pkt = NULL;
|
|
|
|
|
|
|
|
while (!g_queue_is_empty(&conn->primary_list)) {
|
2022-01-14 05:09:00 +00:00
|
|
|
pkt = g_queue_pop_tail(&conn->primary_list);
|
2017-07-04 06:53:52 +00:00
|
|
|
compare_chr_send(s,
|
|
|
|
pkt->data,
|
|
|
|
pkt->size,
|
2019-06-09 16:44:31 +00:00
|
|
|
pkt->vnet_hdr_len,
|
2020-05-22 07:53:53 +00:00
|
|
|
false,
|
|
|
|
true);
|
|
|
|
packet_destroy_partial(pkt, NULL);
|
2017-02-17 02:53:12 +00:00
|
|
|
}
|
|
|
|
while (!g_queue_is_empty(&conn->secondary_list)) {
|
2022-01-14 05:09:00 +00:00
|
|
|
pkt = g_queue_pop_tail(&conn->secondary_list);
|
2017-02-17 02:53:12 +00:00
|
|
|
packet_destroy(pkt, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
static void colo_compare_class_init(ObjectClass *oc, void *data)
|
|
|
|
{
|
|
|
|
UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
|
|
|
|
|
|
|
|
ucc->complete = colo_compare_complete;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void colo_compare_init(Object *obj)
|
|
|
|
{
|
2017-07-04 06:53:52 +00:00
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
object_property_add_str(obj, "primary_in",
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_get_pri_indev, compare_set_pri_indev);
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
object_property_add_str(obj, "secondary_in",
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_get_sec_indev, compare_set_sec_indev);
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
object_property_add_str(obj, "outdev",
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_get_outdev, compare_set_outdev);
|
2017-08-29 07:22:38 +00:00
|
|
|
object_property_add_link(obj, "iothread", TYPE_IOTHREAD,
|
|
|
|
(Object **)&s->iothread,
|
|
|
|
object_property_allow_set_link,
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
OBJ_PROP_LINK_STRONG);
|
2019-06-09 16:44:29 +00:00
|
|
|
/* This parameter just for Xen COLO */
|
|
|
|
object_property_add_str(obj, "notify_dev",
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_get_notify_dev, compare_set_notify_dev);
|
2017-07-04 06:53:52 +00:00
|
|
|
|
2020-10-16 05:52:05 +00:00
|
|
|
object_property_add(obj, "compare_timeout", "uint64",
|
2020-03-18 08:23:19 +00:00
|
|
|
compare_get_timeout,
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_set_timeout, NULL, NULL);
|
2020-03-18 08:23:19 +00:00
|
|
|
|
2020-03-18 08:23:20 +00:00
|
|
|
object_property_add(obj, "expired_scan_cycle", "uint32",
|
|
|
|
compare_get_expired_scan_cycle,
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_set_expired_scan_cycle, NULL, NULL);
|
2020-03-18 08:23:20 +00:00
|
|
|
|
2020-06-24 01:20:41 +00:00
|
|
|
object_property_add(obj, "max_queue_size", "uint32",
|
|
|
|
get_max_queue_size,
|
|
|
|
set_max_queue_size, NULL, NULL);
|
|
|
|
|
2017-07-04 06:53:52 +00:00
|
|
|
s->vnet_hdr = false;
|
|
|
|
object_property_add_bool(obj, "vnet_hdr_support", compare_get_vnet_hdr,
|
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with
the same name already exists. Since our property names are all
hardcoded, failure is a programming error, and the appropriate way to
handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which
additionally fails when the child already has a parent. Parentage is
also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass
&error_abort, slightly fewer ignore errors, one test case handles
errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring
programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API.
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL. Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call. ich9_pm_add_properties(), sparc32_ledma_realize(),
sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize()
are wrong that way.
When the one appropriate choice of argument is &error_abort, letting
users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming
error": the way object_property_add() implements the magic (and
undocumented) "automatic arrayification". Don't drop @errp there.
Instead, rename object_property_add() to object_property_try_add(),
and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200505152926.18877-15-armbru@redhat.com>
[Two semantic rebase conflicts resolved]
2020-05-05 15:29:22 +00:00
|
|
|
compare_set_vnet_hdr);
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
Add the function of colo_compare_cleanup
This patch fixes the following:
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x00007f6ae4559859 in __GI_abort () at abort.c:79
#2 0x0000559aaa386720 in error_exit (err=16, msg=0x559aaa5973d0 <__func__.16227> "qemu_mutex_destroy") at util/qemu-thread-posix.c:36
#3 0x0000559aaa3868c5 in qemu_mutex_destroy (mutex=0x559aabffe828) at util/qemu-thread-posix.c:69
#4 0x0000559aaa2f93a8 in char_finalize (obj=0x559aabffe800) at chardev/char.c:285
#5 0x0000559aaa23318a in object_deinit (obj=0x559aabffe800, type=0x559aabfd7d20) at qom/object.c:606
#6 0x0000559aaa2331b8 in object_deinit (obj=0x559aabffe800, type=0x559aabfd9060) at qom/object.c:610
#7 0x0000559aaa233200 in object_finalize (data=0x559aabffe800) at qom/object.c:620
#8 0x0000559aaa234202 in object_unref (obj=0x559aabffe800) at qom/object.c:1074
#9 0x0000559aaa2356b6 in object_finalize_child_property (obj=0x559aac0dac10, name=0x559aac778760 "compare0-0", opaque=0x559aabffe800) at qom/object.c:1584
#10 0x0000559aaa232f70 in object_property_del_all (obj=0x559aac0dac10) at qom/object.c:557
#11 0x0000559aaa2331ed in object_finalize (data=0x559aac0dac10) at qom/object.c:619
#12 0x0000559aaa234202 in object_unref (obj=0x559aac0dac10) at qom/object.c:1074
#13 0x0000559aaa2356b6 in object_finalize_child_property (obj=0x559aac0c75c0, name=0x559aac0dadc0 "chardevs", opaque=0x559aac0dac10) at qom/object.c:1584
#14 0x0000559aaa233071 in object_property_del_child (obj=0x559aac0c75c0, child=0x559aac0dac10, errp=0x0) at qom/object.c:580
#15 0x0000559aaa233155 in object_unparent (obj=0x559aac0dac10) at qom/object.c:599
#16 0x0000559aaa2fb721 in qemu_chr_cleanup () at chardev/char.c:1159
#17 0x0000559aa9f9b110 in main (argc=54, argv=0x7ffeb62fa998, envp=0x7ffeb62fab50) at vl.c:4539
When chardev is cleaned up, chr_write_lock needs to be destroyed. But
the colo-compare module is not cleaned up normally before it when the
guest poweroff. It is holding chr_write_lock at this time. This will
cause qemu crash.So we add the function of colo_compare_cleanup() before
qemu_chr_cleanup() to fix the bug.
Signed-off-by: Lei Rao <lei.rao@intel.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Tested-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-08 08:23:30 +00:00
|
|
|
void colo_compare_cleanup(void)
|
|
|
|
{
|
|
|
|
CompareState *tmp = NULL;
|
|
|
|
CompareState *n = NULL;
|
|
|
|
|
|
|
|
QTAILQ_FOREACH_SAFE(tmp, &net_compares, next, n) {
|
|
|
|
object_unparent(OBJECT(tmp));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
static void colo_compare_finalize(Object *obj)
|
|
|
|
{
|
|
|
|
CompareState *s = COLO_COMPARE(obj);
|
2018-09-03 04:38:43 +00:00
|
|
|
CompareState *tmp = NULL;
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
|
2020-05-22 07:53:55 +00:00
|
|
|
qemu_mutex_lock(&colo_compare_mutex);
|
2018-09-03 04:38:43 +00:00
|
|
|
QTAILQ_FOREACH(tmp, &net_compares, next) {
|
|
|
|
if (tmp == s) {
|
|
|
|
QTAILQ_REMOVE(&net_compares, s, next);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2020-05-22 07:53:55 +00:00
|
|
|
if (QTAILQ_EMPTY(&net_compares)) {
|
|
|
|
colo_compare_active = false;
|
|
|
|
qemu_mutex_destroy(&event_mtx);
|
|
|
|
qemu_cond_destroy(&event_complete_cond);
|
|
|
|
}
|
|
|
|
qemu_mutex_unlock(&colo_compare_mutex);
|
2018-09-03 04:38:43 +00:00
|
|
|
|
2020-05-22 07:53:56 +00:00
|
|
|
qemu_chr_fe_deinit(&s->chr_pri_in, false);
|
|
|
|
qemu_chr_fe_deinit(&s->chr_sec_in, false);
|
|
|
|
qemu_chr_fe_deinit(&s->chr_out, false);
|
|
|
|
if (s->notify_dev) {
|
|
|
|
qemu_chr_fe_deinit(&s->chr_notify_dev, false);
|
|
|
|
}
|
|
|
|
|
2020-07-31 05:06:04 +00:00
|
|
|
colo_compare_timer_del(s);
|
2020-05-22 07:53:56 +00:00
|
|
|
|
|
|
|
qemu_bh_delete(s->event_bh);
|
|
|
|
|
2020-05-22 07:53:53 +00:00
|
|
|
AioContext *ctx = iothread_get_aio_context(s->iothread);
|
|
|
|
aio_context_acquire(ctx);
|
|
|
|
AIO_WAIT_WHILE(ctx, !s->out_sendco.done);
|
|
|
|
if (s->notify_dev) {
|
|
|
|
AIO_WAIT_WHILE(ctx, !s->notify_sendco.done);
|
|
|
|
}
|
|
|
|
aio_context_release(ctx);
|
|
|
|
|
2017-02-17 02:53:12 +00:00
|
|
|
/* Release all unhandled packets after compare thead exited */
|
|
|
|
g_queue_foreach(&s->conn_list, colo_flush_packets, s);
|
2020-05-22 07:53:53 +00:00
|
|
|
AIO_WAIT_WHILE(NULL, !s->out_sendco.done);
|
2017-02-17 02:53:12 +00:00
|
|
|
|
2017-02-22 05:16:06 +00:00
|
|
|
g_queue_clear(&s->conn_list);
|
2020-05-22 07:53:53 +00:00
|
|
|
g_queue_clear(&s->out_sendco.send_list);
|
|
|
|
if (s->notify_dev) {
|
|
|
|
g_queue_clear(&s->notify_sendco.send_list);
|
|
|
|
}
|
2016-09-27 02:22:30 +00:00
|
|
|
|
2017-08-29 07:22:38 +00:00
|
|
|
if (s->connection_track_table) {
|
|
|
|
g_hash_table_destroy(s->connection_track_table);
|
|
|
|
}
|
|
|
|
|
2020-07-31 05:06:04 +00:00
|
|
|
object_unref(OBJECT(s->iothread));
|
2018-09-03 04:38:43 +00:00
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
g_free(s->pri_indev);
|
|
|
|
g_free(s->sec_indev);
|
|
|
|
g_free(s->outdev);
|
2019-06-09 16:44:29 +00:00
|
|
|
g_free(s->notify_dev);
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
2020-05-22 07:53:55 +00:00
|
|
|
static void __attribute__((__constructor__)) colo_compare_init_globals(void)
|
|
|
|
{
|
|
|
|
colo_compare_active = false;
|
|
|
|
qemu_mutex_init(&colo_compare_mutex);
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx rx | | | | | tx all | rx | |
| | | | | | | | +-----------------------------------------------------------+ |
| | | +--------------+ | | | | | |
| | | filter excute order | | | | | | |
| | | +----------------> | | | +--------------------------------------------------------+ |
| +-----------------------------------------+ | | |
| | | | | |
+--------------------------------------------------------------+ +----------------------------------------------------------------+
|guest receive | guest send
| |
+--------+----------------------------v------------------------+
| | NOTE: filter direction is rx/tx/all
| tap | rx:receive packets sent to the netdev
| | tx:receive packets sent by the netdev
+--------------------------------------------------------------+
In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id
usage:
primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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static const TypeInfo colo_compare_info = {
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.name = TYPE_COLO_COMPARE,
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.parent = TYPE_OBJECT,
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.instance_size = sizeof(CompareState),
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.instance_init = colo_compare_init,
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.instance_finalize = colo_compare_finalize,
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.class_size = sizeof(CompareClass),
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.class_init = colo_compare_class_init,
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.interfaces = (InterfaceInfo[]) {
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{ TYPE_USER_CREATABLE },
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{ }
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}
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};
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static void register_types(void)
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{
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type_register_static(&colo_compare_info);
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}
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type_init(register_types);
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