CN115037708B - Message processing method, system, device and computer readable storage medium - Google Patents
Message processing method, system, device and computer readable storage medium Download PDFInfo
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- CN115037708B CN115037708B CN202210953436.7A CN202210953436A CN115037708B CN 115037708 B CN115037708 B CN 115037708B CN 202210953436 A CN202210953436 A CN 202210953436A CN 115037708 B CN115037708 B CN 115037708B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3009—Header conversion, routing tables or routing tags
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/70—Virtual switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
Abstract
The application discloses a message processing method, a system, a device and a computer readable storage medium, relating to the field of computer networks. When a source message is received from a physical queue of a chip, setting identification information for the source message to obtain a target message; and sending the target message to a software queue so that the OVS can acquire the target message from the software queue and analyze the identification information, and performing flow table processing and distribution processing on the source message according to the identification information. Therefore, the mode of setting the identification information for the source message is used in the application, so that the OVS can directly acquire the target message from the software queue and analyze the identification information of the target message, and therefore, flow table processing and distribution processing can be performed on the source message according to the identification information without using a presenter port, and therefore, the problems of polling idling, long polling time, poor performance and large memory consumption caused by using the presenter port can be solved.
Description
Technical Field
The present application relates to the field of computer networks, and in particular, to a method, a system, an apparatus, and a computer-readable storage medium for processing a packet.
Background
In the using process of the intelligent network card, a software side mostly adopts a software architecture of Open VSwitch + data plane virtualization kit (virtual switch + data plane forwarding suite), when the intelligent network card is used, a predictor port is generated through an OVS bridge to serve as a soft switch port, and at the moment, if a flow table is not hit in the flow, the flow is sent to the target network virtualization device from the predictor port through the OVS + DPDK. The OVS + DPDK software architecture generally receives a message from a presenter port in a PMD (polarization Mode Driver, PMD Driver) driven polling manner, and matches a flow table corresponding to the presenter port to perform subsequent processing on the message. In addition, a "secondary packet reception" mode also exists in the prior art, specifically, a message is received from a physical port of the intelligent network card, then a software architecture in the physical port identifies features in the message, so that the message is distributed to an RXQ (Receive Queue) Queue corresponding to a presenter port corresponding to the features, and finally the OVS + DPDK polls the receiver port to Receive the message from the RXQ Queue and matches a flow table corresponding to the presenter port, so as to perform subsequent processing on the message.
By using the two modes, the flow table can be matched only by using the predictor port, and the received message can be subjected to subsequent processing. If the number of the predictor ports is large, the OVS + DPDK needs to poll all the predictor ports, and the performance is poor. Further, if there is no message in the RXQ queue corresponding to some of the presenter ports, there is also a problem of polling idleness during OVS + DPDK polling, which results in an increase in polling time and a decrease in performance. In addition, the RXQ queues corresponding to each presenter port need to be provided with corresponding receiving memories to store messages, and the memory consumption is also large.
Disclosure of Invention
The present application aims to provide a method, a system, an apparatus, and a computer-readable storage medium for processing a packet, which use a manner of setting identification information for a source packet, so that an OVS can directly obtain a target packet from a software queue and analyze the identification information of the target packet, and thus, can perform flow table processing and distribution processing on the source packet according to the identification information, without using a presenter port, and thus can avoid problems of idle performance polling, long polling time, poor performance, and large memory consumption caused by using the presenter port.
In order to solve the above technical problem, the present application provides a message processing method, including:
when a source message is received from a physical queue of a chip, setting identification information corresponding to the physical queue for the source message to obtain a target message;
and sending the target message to a software queue so that the OVS can analyze the identification information after acquiring the target message from the software queue, thereby performing flow table processing and distribution processing on the source message according to the identification information.
Preferably, the setting, for the source packet, identification information corresponding to the physical queue to obtain a target packet includes:
setting an extension header for the source message;
writing queue information corresponding to the physical queue into the extended header to obtain a target message;
the target message comprises a source message and an extension header written with the queue information.
Preferably, the software queue is an uplink queue.
Preferably, the OVS obtains the target packet from the software queue and then parses the identification information, so as to perform flow table processing and distribution processing on the source packet according to the identification information, including:
polling the software queue to obtain the target message;
analyzing the queue information in the expansion header of the target message to obtain a port index corresponding to the source message;
matching flow table information corresponding to the source message according to the port index;
and distributing and processing the source message according to the flow table information.
Preferably, after analyzing the queue information in the extension header of the target packet and obtaining the port index corresponding to the source packet, the method further includes:
and writing the port index into a port field of a first cache module so as to match flow table information corresponding to the source message according to the port index in the port field in the follow-up process.
Preferably, matching, according to the port index, flow table information corresponding to the source packet includes:
determining whether the OVS acquires the port index for the first time;
if so, matching flow table information corresponding to the source message according to the port index, and storing the port index and the matched flow table information into a second cache module;
if not, searching the flow table information corresponding to the port index from the second cache module, and distributing and processing the source message based on the searched flow table information.
Preferably, determining whether the OVS acquires the port index for the first time includes:
searching in the second cache module according to the obtained port index to determine whether a port index identical to the obtained port index exists in the second cache module;
if yes, judging that the OVS is not acquired for the first time to obtain the port index;
and if not, judging that the OVS acquires the port index for the first time.
In order to solve the above technical problem, the present application further provides a message processing system, including:
the device comprises an identification setting unit, a message sending unit and a message receiving unit, wherein the identification setting unit is used for setting identification information corresponding to a physical queue for a source message when the source message is received from the physical queue of a chip to obtain a target message;
and the message processing unit is used for sending the target message to a software queue so that the OVS can analyze the identification information after acquiring the target message from the software queue, and then flow table processing and distribution processing are carried out on the source message according to the identification information.
In order to solve the above technical problem, the present application further provides a packet processing apparatus, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the message processing method when storing the computer program.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of the message processing method are implemented.
The application provides a message processing method, and relates to the field of computer networks. When a source message is received from a physical queue of a chip, setting identification information for the source message to obtain a target message; and sending the target message to a software queue so that the OVS can acquire the target message from the software queue and analyze the identification information, and performing flow table processing and distribution processing on the source message according to the identification information. Therefore, the mode of setting the identification information for the source message is used in the application, so that the OVS can directly acquire the target message from the software queue and analyze the identification information of the target message, and thus, flow table processing and distribution processing can be performed on the source message according to the identification information without using a presenter port, and therefore, the problems of idle performance polling, long polling time, poor performance and large memory consumption caused by using the presenter port can be avoided.
The application also provides a message processing system, a message processing device and a computer readable storage medium, which have the same beneficial effects as the message processing method described above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flowchart of a message processing method provided in the present application;
fig. 2 is a schematic diagram of a target packet provided in the present application;
fig. 3 is a block diagram of a message processing system according to the present application;
fig. 4 is a block diagram of a message processing apparatus according to the present application.
Detailed Description
The core of the application is to provide a message processing method, a system, a device and a computer readable storage medium, which use a mode of setting identification information for a source message, so that an OVS can directly acquire a target message from a software queue and analyze the identification information of the target message, and thus, flow table processing and distribution processing can be performed on the source message according to the identification information, and a presenter port does not need to be used, thereby avoiding the problems of idle performance polling, long polling time, poor performance and large memory consumption caused by the use of the presenter port.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In consideration of the fact that in the prior art, a queue is polled through a presenter port, and only flow table information and the like corresponding to a message can be matched through the presenter port, subsequent flow table processing and distribution processing can be performed on the message, and if the number of the presenter ports is large, the problems of low efficiency and large memory consumption exist. Therefore, the design idea of the application is as follows: the message is acquired without using a receiver port, and flow table processing and distribution processing can be performed on the message according to the information of the message.
Referring to fig. 1, fig. 1 is a schematic flow chart of a message processing method provided in the present application, where the method includes:
s11: when a source message is received from a physical queue of a chip, setting identification information corresponding to the physical queue for the source message to obtain a target message;
s12: and sending the target message to a software queue so that the OVS can analyze the identification information after acquiring the target message from the software queue, and thus, flow table processing and distribution processing are carried out on the source message according to the identification information.
Specifically, in the present application, after a source packet is received from a physical queue of a chip, identification information corresponding to the physical queue is set for the source packet, a target packet is obtained (where the target packet includes the source packet and the identification information), and the target packet is sent to a software queue (where, as a preferred embodiment, the software queue is an uplink queue). When a subsequent OVS needs to acquire a message, the OVS directly accesses or polls the software queue to acquire a target message in the software queue, analyzes the target message after acquiring the target message to acquire identification information of the target message, and acquires information of a source message according to the analyzed identification information (such as which port of the physical queue is transmitted, and where the source message needs to be forwarded, through which port the source message needs to be forwarded and the like), and matches a corresponding flow table for the source message or the target message according to the analyzed identification information so as to perform flow table processing and distribution processing and the like in the subsequent process.
The physical queue is an entity queue corresponding to the chip, the chip may be, but is not limited to, an FPGA, and the like, and the software queue may be, but is not limited to, an uplink queue, and may also be another implementation manner, which is not particularly limited herein.
As a preferred embodiment, setting identification information corresponding to a physical queue for a source packet to obtain a target packet, including:
setting an extension header for a source message;
writing queue information corresponding to the physical queue in the expansion head to obtain a target message;
the target message includes the source message and an extension header into which queue information has been written.
The embodiment aims to provide a specific implementation manner for setting identification information corresponding to a physical queue for a source packet, and specifically, may be to encapsulate an extension header for the source packet after receiving the source packet, specifically refer to fig. 2, where fig. 2 is a schematic diagram of a target packet provided in the present application. The pkt _ data on the left side is a source message, the extra _ head on the right side is an extension header, and the extra _ head + pkt _ data serves as a target message. Wherein the queue information corresponding to the physical queue is written in the extended header.
The queue information may include, but is not limited to, a port of a source of the source packet, and the like, and the application is not limited herein.
As a preferred embodiment, the OVS obtains the target packet from the software queue and then parses the identification information, thereby performing flow table processing and distribution processing on the source packet according to the identification information, including:
polling a software queue to acquire a target message;
analyzing the queue information in the extension header of the target message to obtain a port index corresponding to the source message;
matching flow table information corresponding to the source message according to the port index;
and distributing and processing the source message according to the flow table information.
The present embodiment aims to provide a specific implementation manner in which the OVS obtains a target packet from a software queue and then parses the identification information, so as to perform flow table processing and distribution processing on a source packet according to the identification information, specifically, the OVS polls the software queue to obtain the target packet stored in the software queue, then parses queue information in an extension header in the target packet to obtain a port index (which may be specifically a port ID) corresponding to the source packet, subsequently matches flow table information corresponding to the port index for the source packet according to the port index, and then performs distribution or forwarding processing on the source packet according to content in the flow table information.
As a preferred embodiment, after analyzing the queue information in the extension header of the target packet and obtaining the port index corresponding to the source packet, the method further includes:
and writing the port index into a port field of the first cache module so as to match flow table information corresponding to the source message according to the port index in the port field in the subsequent process.
Specifically, when the two steps of analyzing the queue information in the extension header of the target packet to obtain the port index corresponding to the source packet and matching the flow table information corresponding to the source packet according to the port index are performed separately, for example, in a specific embodiment, pmd in the OVS drives polling of a software queue to acquire the target packet and analyzes the queue information in the extension header of the target packet to obtain the port index corresponding to the source packet, and when the OVS performs the step of matching the flow table information corresponding to the source packet according to the port index, pmd drives analyzing the output port index and then writes the port index into the port field of the first cache module, so that the OVS extracts the port index in the port field of the first cache module and performs the step of matching the flow table information corresponding to the source packet according to the port index.
The first cache module may be, but is not limited to, an mbuf cache.
As a preferred embodiment, matching flow table information corresponding to a source packet according to a port index includes:
determining whether the OVS acquires the port index for the first time;
if so, matching flow table information corresponding to the source message according to the port index, and storing the port index and the matched flow table information into a second cache module;
if not, the flow table information corresponding to the port index is searched from the second cache module, and the source message is distributed and processed based on the searched flow table information.
Further, in the step of matching the flow table information corresponding to the source packet according to the port index, there may be a step of simultaneously processing the flow table information corresponding to the same port index, and the same step of matching the flow table information is performed for the flow tables with the same port index, which may generate additional performance overhead.
Therefore, in the present application, after the OVS receives the port index, it is further determined whether the port index is received for the first time, if yes, a step of matching the flow table information corresponding to the source packet according to the port index is performed, and the port index and the matched flow table information are correspondingly stored in the second cache module (a mapping relationship between the port index and the flow table information may be generated by a plurality of port indexes and corresponding flow table information). Otherwise, it indicates that the port index and the corresponding flow table information are already stored in the second cache module, and directly uses the port index as navigation information to search the corresponding flow table information in the second cache module, and then performs distribution processing on the source packet based on the flow table information.
The second cache module may be, but is not limited to, a portcache mechanism.
As a preferred embodiment, determining whether the OVS acquires the port index for the first time includes:
searching in a second cache module according to the obtained port index to determine whether a port index which is the same as the obtained port index exists in the second cache module;
if yes, judging that the OVS is not acquired for the first time to obtain the port index;
and if not, judging that the OVS acquires the port index for the first time.
The present embodiment is directed to provide a specific implementation manner for determining whether an OVS acquires a port index for the first time, and specifically, after the port index is acquired, the port index is used as navigation information, and is searched in a second cache module, and it is determined whether a port index that is the same as the port index exists in the second cache module and whether flow table information corresponding to the port index exists in the second cache module, and if so, it is determined that the port index and corresponding flow table information have already been stored in the second cache module, that is, the OVS does not receive the port index for the first time. Otherwise, it is determined that the port index and the corresponding flow table information do not exist in the second cache module, that is, the OVS receives the port index for the first time.
By the mode in the embodiment, the situation that the OVS repeatedly matches the flow table information for the same port index can be avoided, and the performance of the OVS can be improved to a certain extent.
In a specific embodiment, the processing flow of the packet is as follows:
(1) After receiving a source message from a physical queue, the FPGA packages an extension head on the basis of the source message, fills queue information corresponding to the physical queue in the extension head to obtain a target message, and sends the target message to an uplink queue to wait for the next processing;
(2) An OVS-PMD drives a polling uplink Port RXQ queue to receive a packet, namely a target message is received, and queue information in an expansion head in the target message is analyzed to obtain a corresponding Port _ id (Port index);
(3) The OVS-PMD driver fills Port _ id into a Port field in mbuf (a first cache module), and sends the Port field to the OVS for the next processing;
(4) And the OVS receives the mbuf carrying the source Port _ id information to perform flow table processing and message distribution.
To sum up, when receiving a source message from a physical queue of a chip, the message processing method in the application sets identification information for the source message to obtain a target message; and sending the target message to a software queue so that the OVS can acquire the target message from the software queue and analyze the identification information, and performing flow table processing and distribution processing on the source message according to the identification information. Therefore, the mode of setting the identification information for the source message is used in the application, so that the OVS can directly acquire the target message from the software queue and analyze the identification information of the target message, and therefore, flow table processing and distribution processing can be performed on the source message according to the identification information without using a presenter port, and therefore the problems of idle performance polling, long polling time, poor performance and high memory consumption caused by using the presenter port can be solved.
To solve the above technical problem, the present application further provides a message processing system, please refer to fig. 3, where fig. 3 is a block diagram of a structure of the message processing system provided in the present application, and the system includes:
an identifier setting unit 31, configured to set identifier information corresponding to a physical queue for a source packet to obtain a target packet when the source packet is received from the physical queue of the chip;
the message processing unit 32 is configured to send the target message to the software queue, so that the OVS obtains the target message from the software queue and then parses the identification information, thereby performing flow table processing and distribution processing on the source message according to the identification information.
For the introduction of the message processing system, please refer to the above embodiments, which are not described herein again.
To solve the above technical problem, the present application further provides a message processing apparatus, please refer to fig. 4, where fig. 4 is a block diagram of a structure of the message processing apparatus provided in the present application, and the apparatus includes:
a memory 41 for storing a computer program;
the processor 42, when storing the computer program, is configured to implement the steps of the message processing method described above.
For the introduction of the message processing apparatus, please refer to the above embodiments, which are not described herein again.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the message processing method are implemented. For the introduction of the computer-readable storage medium, reference is made to the above embodiments, which are not repeated herein.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A message processing method is characterized by comprising the following steps:
when a source message is received from a physical queue of a chip, setting identification information corresponding to the physical queue for the source message to obtain a target message;
sending the target message to a software queue so that an OVS can acquire the target message from the software queue and then analyze identification information, and thus, flow table processing and distribution processing are performed on the source message according to the identification information;
setting identification information corresponding to the physical queue for the source message to obtain a target message, wherein the identification information comprises:
setting an extension header for the source message;
writing queue information corresponding to the physical queue in the expansion head to obtain a target message;
the target message comprises a source message and an expansion head written with the queue information;
the OVS obtains the target message from the software queue and then analyzes the identification information, thereby carrying out flow table processing and distribution processing on the source message according to the identification information, and the method comprises the following steps:
polling the software queue to acquire the target message;
analyzing the queue information in the expansion header of the target message to obtain a port index corresponding to the source message;
matching flow table information corresponding to the source message according to the port index;
and distributing and processing the source message according to the flow table information.
2. The message processing method according to claim 1, characterized in that the software queue is a software queue corresponding to an uplink interface.
3. The message processing method according to claim 1, wherein after analyzing the queue information in the extension header of the target message to obtain the port index corresponding to the source message, the method further comprises:
and writing the port index into a port field of a first cache module so as to match flow table information corresponding to the source message according to the port index in the port field in the follow-up process.
4. The packet processing method according to claim 1, wherein matching flow table information corresponding to the source packet according to the port index comprises:
determining whether the OVS acquires the port index for the first time;
if so, matching flow table information corresponding to the source message according to the port index, and storing the port index and the matched flow table information into a second cache module;
if not, searching the flow table information corresponding to the port index from the second cache module, and distributing and processing the source message based on the searched flow table information.
5. The message processing method according to claim 4, wherein determining whether the OVS acquires the port index for the first time includes:
searching in the second cache module according to the obtained port index to determine whether a port index identical to the obtained port index exists in the second cache module;
if yes, judging that the OVS is not acquired for the first time to obtain the port index;
and if not, judging that the OVS acquires the port index for the first time.
6. A message processing system, comprising:
the identification setting unit is used for setting identification information corresponding to a physical queue for a source message to obtain a target message when the source message is received from the physical queue of a chip;
the message processing unit is used for sending the target message to a software queue so that the OVS can analyze the identification information after acquiring the target message from the software queue, and thus flow table processing and distribution processing are carried out on the source message according to the identification information;
setting identification information corresponding to the physical queue for the source message to obtain a target message, wherein the identification information comprises:
setting an extension header for the source message;
writing queue information corresponding to the physical queue in the expansion head to obtain a target message;
the target message comprises a source message and an expansion head written with the queue information;
the OVS obtains the target message from the software queue and then analyzes the identification information, so that flow table processing and distribution processing are carried out on the source message according to the identification information, and the method comprises the following steps:
polling the software queue to obtain the target message;
analyzing the queue information in the expansion header of the target message to obtain a port index corresponding to the source message;
matching flow table information corresponding to the source message according to the port index;
and distributing and processing the source message according to the flow table information.
7. A message processing apparatus, comprising:
a memory for storing a computer program;
processor for implementing the steps of the message processing method according to any of claims 1-5, when storing a computer program.
8. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the message processing method according to any one of claims 1-5.
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| CN112866019A (en) * | 2021-01-11 | 2021-05-28 | 科大讯飞股份有限公司 | Method for limiting bandwidth of elastic IP address, related equipment and readable storage medium |
| CN113392343A (en) * | 2021-08-17 | 2021-09-14 | 深圳市信润富联数字科技有限公司 | Data extraction method, device, medium and computer program product |
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