WO2018035681A1 - 建立端口连接的方法及端口芯片 - Google Patents

建立端口连接的方法及端口芯片 Download PDF

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Publication number
WO2018035681A1
WO2018035681A1 PCT/CN2016/096249 CN2016096249W WO2018035681A1 WO 2018035681 A1 WO2018035681 A1 WO 2018035681A1 CN 2016096249 W CN2016096249 W CN 2016096249W WO 2018035681 A1 WO2018035681 A1 WO 2018035681A1
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Prior art keywords
port
rate
type
list
rates
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PCT/CN2016/096249
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English (en)
French (fr)
Inventor
李旭慧
王娜
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华为技术有限公司
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Priority to PCT/CN2016/096249 priority Critical patent/WO2018035681A1/zh
Priority to CN201680003258.4A priority patent/CN108476245B/zh
Publication of WO2018035681A1 publication Critical patent/WO2018035681A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof

Definitions

  • the present invention relates to the field of network connection technologies, and in particular, to a method for establishing a port connection and a port chip.
  • a Fibre Channel (Fiber Channel) or Internet Small Computer System Interface (iSCSI) Ethernet is generally used for network connection, but with 10 Gigabit Ethernet ( 10Gbe) can integrate 10 Gigabit Ethernet into a storage area network connected by Fibre Channel (Fibre Channel), that is, in a storage area network, FC network and 10 Gigabit Ethernet exist at the same time, users can choose according to their needs. Different network connections, so that you can add 10 Gigabit Ethernet connections to the existing FC network architecture without having to replace the existing FC network architecture to achieve the old purpose.
  • Fibre Channel Fibre Channel
  • FC network and 10 Gigabit Ethernet exist at the same time, users can choose according to their needs.
  • Different network connections so that you can add 10 Gigabit Ethernet connections to the existing FC network architecture without having to replace the existing FC network architecture to achieve the old purpose.
  • the existing SAN architecture connected through the FC network is connected to the FC switch 103 through the FC Host Bus Adapter (HBA) 102, and the FC switch 103 is connected to the storage device through the FC HBA port 102. 104.
  • HBA Fibre Channel Bus Adapter
  • an FCoE/iSCSI switch 105 is added to the existing FC network, and an Ethernet (ETH) HBA 106 of the server 101 is connected.
  • ETH Ethernet
  • a Unified Interface Adapter (UTA) 107 is provided on the storage device 104, and the FC switch 103 and the FCoE/iSCSI switch 105 are simultaneously connected to the UTA 107.
  • the UTA 107 supports the FC port and the ETH.
  • the mutual conversion of ports When you need to use the FC network to transmit data, you need to manually set the UTA port to an FC port, and then manually change the optical module to an FC optical module.
  • the application provides a method for establishing a port connection and a port chip, which can automatically perform different Switching of network ports.
  • a first aspect of the embodiments of the present invention provides a method for establishing a port connection, where the method is applied to a port chip, the port chip includes a port, and the port supports at least one port type, and the port chip executes the The method performs port type switching.
  • the method includes receiving, by using the port, a negotiation signal sent by a peer end, and determining, according to the negotiation signal, a communication rate between the port and the peer end, and after determining the communication rate, determining the port according to the determined communication rate.
  • the port type should be set, and then the port is set to the port type that should be set. After the port type of the port is determined, the connection between the port and the peer can be established.
  • the communication speed of the two ends can be determined according to the signal sent by the opposite end, and the port type that should be set by the port is determined according to the determined communication rate, and the port is set to the corresponding port type, and both ends can be set according to the
  • the port type performs data communication, so that the port type of the port can be set according to the negotiation signal sent by the peer end, and no manual setting is needed, thereby improving the efficiency of switching between different types of networks and simplifying the operation.
  • each of the at least one port type supported by the port corresponds to a set of rates, such that when determining the type of the port according to the communication rate, First determining a set of rates at which the communication rate is located, and then determining a port type of the port based on the set of rates.
  • the port type of the port can be accurately and quickly determined by the different rates supported by each type of port.
  • each port type corresponds to a port protocol, so when the port is set to the port type, first, corresponding to the port type is obtained according to the determined port type.
  • a port protocol that invokes the port protocol to set the port to the port type.
  • the port can support multiple port types, and after the port type is determined, the port can be set to the corresponding port type by calling the corresponding type of port protocol.
  • each port type supported by the port corresponds to a rate set
  • the port chip further stores a receiving rate list and Transmission rate list, the reception rate list and transmission
  • the rate in the rate list is the total rate in the rate set corresponding to all the port types.
  • the rates of all the port types supported by the port are concentrated in one set, which improves the efficiency of rate negotiation.
  • the type of the port is a fiber port or an Ethernet port.
  • a second aspect of the present invention provides a port chip, the port chip includes a port, and the port supports a plurality of port types, and the port chip further includes a signal receiving module, a rate determining module, a port setting module, and a connection establishing module.
  • the signal receiving module is configured to receive, by using the port, a negotiation signal sent by the peer end, where the rate determining module is configured to determine, according to the negotiation signal, a communication rate between the port and the peer end, where the port setting module is configured to use
  • the communication rate determines the port type that should be set for the port and sets the port to the port type that should be set, and the establishing connection module is used to establish a connection between the port and the opposite end.
  • the port chip can determine the communication speed of the two ends according to the signal sent by the opposite end, determine the port type to be set according to the determined communication rate, and set the port to the corresponding port type, and the two ends can be set according to the port.
  • the type carries out data communication, so that the port type of the port can be set according to the negotiation signal sent by the opposite end, and no manual setting is needed, thereby improving the efficiency of switching between different types of networks and simplifying the operation.
  • each of the multiple port types supported by the port corresponds to a rate set, and when the port setting module determines the port type of the port, Specifically, it is used to determine a rate set in which the communication rate is located, and determine a port type of the port according to the rate set.
  • the port type of the port can be accurately and quickly determined by the different rates supported by each type of port.
  • each port type corresponds to a port protocol
  • the port setting module first acquires the port according to the determined port type when the port is set to the port type.
  • Port protocol corresponding to the port type then tune The port is set to the port type using the port protocol.
  • the port can support multiple port types, and after the port type is determined, the port can be set to the corresponding port type by calling the corresponding type of port protocol.
  • the port is an optical port
  • the signal sent by the peer end is an optical signal
  • the rate determining module is specifically used to determine the communication rate between the port and the peer end.
  • the received optical signal negotiates with the opposite end and the communication speed of the opposite end.
  • the optical module supports the rate supported by multiple types of optical modules. In this manner, the optical module can identify optical signals transmitted by different types of ports. Therefore, when performing port switching, different types of optical modules are not required to be replaced.
  • each port type supported by the port corresponds to a rate set
  • the port chip further stores a receiving rate list and a transmission rate list, where the rate in the receiving rate list and the sending rate list is all the rates in the set of rates corresponding to all the port types, and the receiving rate is determined according to the negotiation signal to determine the communication rate between the port and the peer end.
  • the list and the rate in the list of transmission rates are negotiated in descending order.
  • rate negotiation the rate of all port types supported by the port is concentrated in a large set, which improves the efficiency of rate negotiation.
  • the type of the port is a fiber port or an Ethernet port.
  • a third aspect of the present invention provides a port chip, the port chip includes a port, a memory, a processor, and a bus, wherein the processor is connected to the port and the memory through the bus, and the memory stores program instructions.
  • the processor executes the program instructions to perform the method of establishing an inter-port connection in any one of the first to fourth embodiments of the first aspect or the first aspect.
  • a fourth aspect of the present invention provides a storage device, where the storage device includes a port chip, the port chip includes a port, a memory, a processor, and a bus, and the processor is connected to the port and the memory through the bus.
  • a program instruction is stored in the memory, and the processor runs the program instruction to perform the first aspect or the first aspect of the first aspect A method of establishing an inter-port connection to any of the fifth embodiments.
  • the embodiment of the present invention sets a network port as a smart port capable of automatically setting a port type in a SAN network having multiple network connections, and the smart port can support multiple types of network ports, and the smart port can Determining the type of the smart port according to the received negotiation signal of the opposite end, and then setting the smart port to the determined type of network port, so that when switching for different network connections, the smart port can be based on the received signal
  • the port type setting is automatically performed without manual setting, which improves the efficiency of switching between different networks and simplifies operation.
  • FIG. 1 is a structural diagram of a storage area network in which a network connection is performed through an FC network in the prior art.
  • FIG. 2 is a structural diagram of a storage area network connected through an FC network and an ETH network in the prior art.
  • FIG. 3 is a structural diagram of a storage area network connected through an FC network and an ETH network according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a smart port chip according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for establishing a connection between a smart port chip and a peer end according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for negotiating and determining a communication rate between a smart port chip and a peer end according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of a smart port chip in an embodiment of the present invention.
  • the UTA port in FIG. 3 the smart port 108 can automatically identify the type of the signal sent by the received peer, and switch the smart port 108 to a port corresponding to the signal type, thereby automatically The type of signal sent by the terminal sets the port type of the smart port 108 without manual setting.
  • the smart port 108 is provided by a smart port chip 40 (shown in FIG. 4).
  • the smart port chip 40 is installed in the storage device 104 and provides a smart port for the storage device 104.
  • the smart port chip 40 can be installed in any device that requires a smart port, and is not limited to being installed in a storage device.
  • FIG. 4 it is a structural diagram of the smart port chip 40 that provides the smart port 108 in the embodiment of the present invention.
  • the smart port chip 40 includes a processor 401, a memory 402, at least one smart port 108, and a bus 404.
  • the processor 401 is coupled to other components via bus 404 to communicate with other components.
  • the signal sent by the opposite end is an optical signal
  • the smart port 108 is also an optical port
  • an optical module 405 can be connected.
  • the optical module 405 can receive the optical module 405.
  • the optical signal sent by the opposite end converts the received optical signal into an electrical signal and transmits it to the smart port 108, and the smart port 108 transmits the electrical signal to the processor 401 for processing.
  • the smart port 108 communicates with the peer.
  • the optical module 405 includes a receiving end Rx and a transmitting end Tx.
  • the receiving end Rx is configured to receive an optical signal sent by the opposite end, and convert the received optical signal into an electrical signal, and the converted electrical signal passes the smart signal.
  • Port 108 is transmitted to the processor 401 for processing, where The 401 sends the information to be sent to the smart port 108.
  • the optical module 405 converts the electrical signal transmitted by the smart port 108 into an optical signal, and then sends it to the opposite end by the transmitting end Tx of the optical module 405.
  • the memory 402 may be a non-volatile memory (NVM) in which a port type determining program 406 and a port protocol corresponding to a port type supported by the smart port chip 40, such as an ETH port protocol, are stored. 407 and the FC port protocol 408.
  • NVM non-volatile memory
  • the smart port 108 can support at least two port types, and each port type corresponds to a port protocol.
  • the rate negotiation is performed, and after the rate negotiation is performed, the current port type of the smart port 108 is determined according to the negotiated rate, and the port protocol corresponding to the port type is started to set the smart port 108 to establish a connection with the peer to establish a connection.
  • the data signal transmitted by the opposite end can be received, and the received data signal is transmitted to the controller 1041 of the storage device 104 for processing, so that normal data communication can be established with the opposite end.
  • FIG. 5 a flowchart of a method for establishing a connection between the smart port chip 40 and a peer end.
  • the method is specifically performed by the processor 401 running the port type determination program 406.
  • the method includes:
  • Step S501 Receive a negotiation signal sent by the opposite end.
  • the negotiation signal sent by the opposite end is a negotiation signal sent by the FC or ETH switch connected to the smart port 108.
  • the negotiation signal sent by the opposite end is sent. It may be a negotiation signal sent directly by the FC port or ETH port of the server.
  • the negotiation signal has a specific code. After receiving the signal sent by the opposite end, the processor 401 first identifies whether the received signal has a specific code, and if it is a signal with a specific code, it can determine the received code.
  • the signal is a negotiation signal.
  • Step S502 negotiating a communication rate with the peer according to the received negotiation signal.
  • the rate negotiation between the two ports follows the FC-FS-3 (Fibre Channel Framing and Signaling-3) standard.
  • FC-FS-3 Fibre Channel Framing and Signaling-3) standard.
  • Step S503 determining, according to the negotiated communication rate, the setting of the smart port 108 Set the port type.
  • the memory 402 further stores a set of rate values supported by each port type supported by the smart port chip 40.
  • the set of rate values supported by the FC port is ⁇ 4 Gbps, 8 Gbps, and 16 Gbps. , 32Gbps ⁇
  • the set of rate values supported by the ETH port is ⁇ 10Gbps, 25Gbps ⁇ .
  • the port type is the port type of the smart port. For example, if the determined communication rate is 10 Gbps, which is one of the rates supported by the ETH port, it can be determined that the type of the smart port is an ETH port.
  • Step S504 Acquire a port protocol according to the determined port type that should be set, and set a port type of the smart port.
  • the memory 402 stores a communication protocol of all port types that the smart port 108 can support. After the port type of the smart port 108 is determined, the communication protocol corresponding to the port type can be invoked. The smart port 108 is set to a corresponding type of port, so that the automatic setting of the smart port 108 can be completed without manual intervention.
  • Step S505 establishing a connection with the peer end to perform data communication with the opposite end.
  • the smart port 108 can automatically identify the type of the negotiation signal sent by the received peer, and switch the smart port 108 to a port corresponding to the signal type, thereby automatically The type of signal sent by the side sets the port type of the smart port without manual setting.
  • FIG. 6 a flowchart of a method for the processor 401 to negotiate a communication rate with the peer according to the received negotiation signal.
  • Step S61 the processor 401 detects a negotiation signal sent by the opposite end.
  • the peer can be the port of the switch or the port of the server.
  • the port that sends the negotiation signal to the peer can be either the FC port or the Ethernet port.
  • the receiving end Rx of the optical module 405 of the smart port 108 can detect the negotiation signal transmitted by the opposite end, and the opposite end can also detect the optical module of the smart port 108.
  • the energy generated by the peer signal can be set to be detected every once in a period of time, for example, 1.6 ms.
  • Step S62 after detecting the negotiation signal sent by the opposite end, the processor 401 sets the receiving rate Rxv of the receiving end Rx of the smart port 108 to the maximum rate Rxmax in the receiving rate list, and sets the transmitting end Tx of the smart port 108.
  • the transmission rate Txv is the maximum rate Txmax in the transmission rate list, and starts the reception rate timer and the transmission rate timer.
  • the receiving end rate list and the sending end rate list list all the rates supported by the smart port 108 in descending order of the rate, that is, each supported by the smart port 108.
  • the total set of rates supported by the port type For example, the smart port 108 supports port types such as an FC port and an ETH port, and the FC port supports a rate of ⁇ 4 Gbps, 8 Gbps, 16 Gbps, and 32 Gbps ⁇ , and the ETH port supports a rate of ⁇ 10 Gbps, 25 Gbps ⁇ .
  • the receiver rate list and the sender rate list are ⁇ 4 Gbps, 8 Gbps, 10 Gbps, 16 Gbps, 25 Gbps, 32 Gbps ⁇ .
  • the rate at which the smart port 108 can communicate with the peer is the rate supported by the smart port.
  • the smart port 108 can perform rate negotiation according to the rate list listed in the receiving end and the rate listed in the sending rate list.
  • a reception rate timer and a transmission rate timer are further provided, and the reception rate timer is used to control a negotiation time of a reception rate, and the transmission rate timer is used to control a negotiation time of a transmission rate. Please refer to the description below for specific applications.
  • Step S63 Determine the rate of the received negotiation signal of the opposite end every first preset time.
  • the negotiation signals sent by the two ends of the rate negotiation are constantly changing. Therefore, the rate of the received negotiation signal is re-determined every first preset time to trigger a receiving end. Rate negotiation.
  • step S64 it is determined whether the rate of the received negotiation signal is consistent with the received rate Rxv of the smart terminal 108. If not, if there is no negotiation, step S66 is performed. If they are consistent, the smart port 108 supports For the rate of the peer port transmission, step S65 is performed.
  • Step S65 determining whether the current receiving rate is greater than or equal to the current sending rate of the set smart port 108. If it is greater than or equal to, the current negotiated rate is determined. That is, the current receiving rate is the maximum rate supported by both ends, and the smart port 108 negotiates with the peer end. Then, the step S67 is performed, and the current receiving rate is used as the negotiation rate between the smart port and the peer. If the value is less than, the smart port 108 supports the sending rate of the peer end. However, the sending rate may not be the maximum rate supported by the smart port and the peer port. Therefore, if the negotiation continues, step S66 is performed.
  • Step S66 determining whether the timing of the receiving rate timer is greater than a second preset time.
  • the second preset time is a preset duration of receiving rate negotiation, and the second preset time is related to the number of rates in the first preset time and the receiving rate list, and the first preset time is multiplied by the receiving.
  • the number of rates in the rate list is the second preset time, so that all the rates in the receiving rate list are negotiated once in the second preset time.
  • Step S68 the current receiving rate Rxv is updated, and the updated current receiving rate is the next rate Rxnext of the current receiving rate Rxv before the update in the receiving rate list, in preparation for negotiating the next rate Rxnext, and the The next rate Rxnext is recorded as a temporary reception rate for use in subsequent transmission rate negotiation, and then returns to step S63.
  • step S69 the current reception rate Rxv is set to be equal to the current transmission rate Txv.
  • Step S70 determining whether the rate of the received negotiation signal is consistent with the current receiving rate Rxv, if the agreement, the received negotiation signal rate is negotiated with the current transmission rate Txv of the smart port 108, then step S67; If they do not match, step S71 is performed.
  • Steps S69 and S70 are performed, that is, after the current reception rate Rxv is set to be the current transmission rate Txv, and then the rate of the received negotiation signal is negotiated once, if the negotiation is performed, the subsequent adjustment of the current transmission rate is not required. The process of negotiation continues, so that the negotiation rate can be quickly determined.
  • Step S71 determining whether the time duration of the transmission rate timer exceeds the third preset time. long.
  • the third preset duration is used to control the negotiation duration of the sending rate, where the third preset duration is related to the second preset duration and the number of sending rates in the sending rate list, that is, the third The preset duration is equal to the second preset duration multiplied by the number of transmission rates in the transmission rate list, so that each transmission rate in the transmission rate list is guaranteed to be in the third period.
  • step S72 If the time length of the transmission rate timer exceeds the third preset duration, step S72 is performed. If the duration of the transmission rate timer does not exceed the third preset duration, step 73 is performed.
  • Step 72 Update the current sending rate Txv, the updated current sending rate Txv is the next rate Txnext of the current sending rate before the update in the sending rate list, set the current receiving rate to the temporary receiving rate recorded in step 68, and then return Step S63. That is, after the current transmission rate Txv is updated, another round of negotiation is performed on the reception rate in the reception rate list.
  • the current reception rate Rxv is set to the temporary reception rate Rxmem, and after the current transmission rate Txv is updated, the reception rate is started from the temporary reception rate Rxmem recorded when the reception rate timer ends counting.
  • step S73 the connection fails and the negotiation ends.
  • the communication rate between the smart port 108 and the peer end can be determined by the foregoing method, and the processing unit can determine the port type of the smart port according to the determined communication rate.
  • FIG. 7 is a block diagram of a smart port 700 according to an embodiment of the present invention.
  • the smart port includes a signal receiving module 701, a rate determining module 702, a port setting module 703, and a connection establishing module 704.
  • the signal receiving module 701 is configured to receive a negotiation signal sent by the opposite end, and corresponds to step S501 of the method for establishing a connection described in FIG. 5.
  • the rate determining module 702 is configured to negotiate a communication rate with the peer according to the received negotiation signal, corresponding to step S501 of the method for establishing a connection described in FIG. 5.
  • the rate negotiation of the negotiation signal between the two ports is in accordance with the FC-FS-3 (Fibre Channel Framing and Signaling-3) standard.
  • FC-FS-3 Fibre Channel Framing and Signaling-3) standard.
  • the port setting module 703 is configured to determine a port type of the smart port according to a communication rate negotiated by the rate determining module 702, and obtain a port protocol corresponding to the port type according to the determined port type, to set the The port type of the smart port, Corresponding to steps S503 and S504 of the method of establishing a connection as described in FIG.
  • the method for determining the port type of the smart port is the same as the method for determining the port type in the method for establishing a connection as described in FIG. 5, and details are not described herein again.
  • the establishing connection module 704 is configured to establish a connection with the peer end after the port setting module sets the smart port to perform data communication with the peer end.
  • the smart port 108 can automatically identify the signal type of the received negotiation signal sent by the opposite end, and switch the smart port 108 to a port corresponding to the signal type, thereby automatically transmitting the negotiation signal according to the opposite end.
  • the signal type sets the port type of the smart port without manual setting.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD.

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Abstract

本发明实施例提供一种建立端口连接的方法及端口芯片。所述方法应用于所述端口芯片，所述方法包括：通过所述端口接收对端发送的协商信号；根据所述协商信号确定所述端口与对端的通讯速率；根据所述通讯速率确定所述端口的应设置的端口类型，并将所述端口设置为所述应设置的端口类型；建立所述端口与所述对端的连接。使用本发明能自动根据对端发送的信号类型设置智能端口的端口类型，而无需手动设置。

Description

建立端口连接的方法及端口芯片 技术领域
本发明涉及网络连接技术领域，特别涉及建立端口连接的方法及端口芯片。
背景技术
在存储区域网络(Storage Area Network,SAN)中，一般使用光纤通道(Fiber Channel)或者互联网小型计算机系统端口(Internet Small Computer System Interface，iSCSI)以太网进行网络连接，但随着万兆以太网(10Gbe)的发展，可以将万兆以太网整合至用光纤通道(Fiber Channel)连接的存储区域网络中，即在一个存储区域网络中，同时存在FC网络及万兆以太网，用户可以根据需要选择不同的网络连接，这样，可以在现有的FC网络架构中加入万兆以太网的连接，而无需更换现有的FC网络架构，达到利旧的目的。
如图1所示，现有的通过FC网络连接的SAN架构为服务器101通过FC主机总线适配器(Host Bus Adapter,HBA)102连接至FC交换机103，FC交换机103通过FC HBA端口102连接至存储设备104。为了在现有的FC网络架构上建立万兆以太网络，则如图2所示，在现有的FC网络中加入FCoE/iSCSI交换机105，并将服务器101的以太网(Ethernet,ETH)HBA106连接至PCoE/iSCSI交换机105，而在存储设备104上设置统一接口卡(Unified Target Adapters，UTA)107，将FC交换机103及FCoE/iSCSI交换机105同时连接至所述UTA107，该UTA107支持FC端口及ETH端口的互相转换。在需要使用FC网络传输数据时，需要人工将该UTA端口设置成FC端口，然后手动将光模块换成FC光模块，在需要使用ETH网络传输数据时，需要人工将该UTA设置成ETH端口，然后将光模块更换为ETH光模块。
发明内容
本申请提供建立端口连接的方法及端口芯片，能够自动进行不同 网络端口的切换。
本发明实施例的第一方面，提供一种建立端口连接的方法，所述方法应用于一端口芯片，所述端口芯片包括端口，所述端口支持至少一种端口类型，所述端口芯片执行所述方法进行端口类型的切换。所述方法包括通过所述端口接收对端发送的协商信号，并根据所述协商信号确定所述端口与对端的通讯速率，在通讯速率确定后，即可根据所确定的通讯速率确定所述端口的应设置的端口类型，然后将所述端口设置为所述应设置的端口类型，在所述端口的端口类型确定好之后，即可建立所述端口与所述对端的连接。
通过上述方法，可以根据对端发送的信号确定两端的通讯速率，根据所确定的通讯速率来确定端口的应设置的端口类型，并将端口设置为相应的端口类型，两端即可根据设置的端口类型进行数据通讯，如此根据对端发送的协商信号即可设置端口的端口类型，不需要手动设置，从而提高了不同类型网络间进行切换的效率，并简化了操作。
在第一方面的第一种实施方式中，所述端口所支持的至少一种端口类型中的每种端口类型对应一速率集合，这样，在根据所述通讯速率确定所述端口的类型时，首先确定所述通讯速率所在的速率集合，然后根据所述速率集合确定所述端口的端口类型。
通过每种类型端口所支持的不同的速率，可以准确且快速的确定所述端口的端口类型。
在第一方面的第二种实施方式中，每种端口类型对应一端口协议，这样，在将所述端口设置为所述端口类型时，首先根据所确定的端口类型获取所述端口类型对应的端口协议，调用所述端口协议将所述端口设置为所述端口类型。
通过在端口芯片中存储端口所支持的所有类型的端口协议，可以使端口支持多种端口类型，且在端口类型确定后，通过调用对应类型的端口协议即可将端口设置为相应的端口类型。
在第一方面的第三种实施方式中，在所述第二实施方式的基础上，所述端口所支持的每种端口类型对应一速率集合，所述端口芯片中还存储有接收速率列表及发送速率列表，所述接收速率列表及发送 速率列表中的速率均为所有端口类型对应的速率集合中的全部速率，在根据所述协商信号确定所述端口与对端的通讯速率时，按照接收速率列表及发送速率列表中的速率的从大到小的顺序进行协商。
在速率协商的时候，将所述端口所支持的所有端口类型的速率集中在一个集合中，提高了速率的协商效率。
在第一方面的第四种实施方式中，在上述第一方面或者第一至第三实施方式的任一种实施方式中，所述端口的类型为光纤端口或者以太网端口。
本发明第二方面提供一种端口芯片，所述端口芯片包括端口，所述端口支持多种端口类型，所述端口芯片还包括信号接收模块，速率确定模块，端口设置模块，及建立连接模块。所述信号接收模块用于通过所述端口接收对端发送的协商信号，所述速率确定模块用于根据所述协商信号确定所述端口与对端的通讯速率，所述端口设置模块用于根据所述通讯速率确定所述端口的应设置的端口类型及将所述端口设置为所述应设置的端口类型，所述建立连接模块用于建立所述端口与所述对端的连接。
上述端口芯片可以根据对端发送的信号确定两端的通讯速率，根据所确定的通讯速率来确定端口的应设置的端口类型，并将端口设置为相应的端口类型，两端即可根据设置的端口类型进行数据通讯，如此根据对端发送的协商信号即可设置端口的端口类型，不需要手动设置，从而提高了不同类型网络间进行切换的效率，并简化了操作。
在本发明第二方面的第一种实施方式中，所述端口所支持的多种端口类型中的每种端口类型对应一速率集合，所述端口设置模块在确定所述端口的端口类型时，具体用于确定所述通讯速率所在的速率集合，根据所述速率集合确定所述端口的端口类型。
通过每种类型端口所支持的不同的速率，可以准确且快速的确定所述端口的端口类型。
在本发明第二方面的第二种实施方式中，每种端口类型对应一端口协议，所述端口设置模块在将所述端口设置为所述端口类型时，首先根据所确定的端口类型获取所述端口类型对应的端口协议；然后调 用所述端口协议将所述端口设置为所述端口类型。
通过在端口芯片中存储端口所支持的所有类型的端口协议，可以使端口支持多种端口类型，且在端口类型确定后，通过调用对应类型的端口协议即可将端口设置为相应的端口类型。
在第二方面的第三种实施方式中，所述端口为光端口，对端发送的信号为光信号，所述速率确定模块在确定所述端口与对端的通讯速率时，具体用于根据所接收到的光信号与对端协商与对端的通讯速率。
所述光模块支持多种类型的光模块所支持速率，这样，光模块可识别不同类型的端口发射的光信号，所以，在进行端口切换时，不需要进行不同类型光模块的更换。
在第二方面的第四种实施方式中，在所述第三实施方式的基础上，所述端口所支持的每种端口类型对应一速率集合，所述端口芯片中还存储有接收速率列表及发送速率列表，所述接收速率列表及发送速率列表中的速率均为所有端口类型对应的速率集合中的全部速率，在根据所述协商信号确定所述端口与对端的通讯速率时，按照接收速率列表及发送速率列表中的速率的从大到小的顺序进行协。
在速率协商的时候，将所述端口所支持的所有端口类型的速率集中在一个大集合中，提高了速率的协商效率。
在第二方面的第五种实施方式中，在上述第一至第四实施方式的任一种实施方式中，所述端口的类型为光纤端口或者以太网端口。
本发明第三方面提供一种端口芯片，所述端口芯片包括端口、存储器、处理器及总线，所述处理器通过所述总线与所述端口及存储器连接，所述存储器中存储有程序指令，所述处理器运行所述程序指令以执行第一方面或第一方面的第一至第四实施方式中的任意一种建立端口间连接的方法。
本发明第四方面提供一种存储设备，所述存储设备包括端口芯片，所述端口芯片包括端口、存储器、处理器及总线，所述处理器通过所述总线与所述端口及存储器连接，所述存储器中存储有程序指令，所述处理器运行所述程序指令以执行第一方面或第一方面的第一 至第五实施方式中的任意一种建立端口间连接的方法。
综上，本发明的实施例通过在具有多种网络连接的SAN网络中，将网络端口设置为能够自动设置端口类型的智能端口，该智能端口能够支持多种类型的网络端口，该智能端口能够根据接收到的对端的协商信号确定智能端口的类型，然后将所述智能端口设置为所确定的类型的网络端口，如此，在进行不同网络连接的切换时，该智能端口可以根据所接收的信号自动进行端口类型的设置，不需要手动设置，从而提高了不同网络间进行切换的效率，并简化了操作。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中通过FC网络进行网络连接的存储区域网络的架构图。
图2为现有技术中在通过FC网络及ETH网络连接的存储区域网络的架构图。
图3为本发明实施例中通过FC网络及ETH网络连接的存储区域网络的架构图。
图4为本发明实施例中的智能端口芯片的结构图。
图5为本发明实施例中的智能端口芯片与对端建立连接的方法的流程图。
图6为本发明实施例中的智能端口芯片与对端进行协商确定与对端的通讯速率的方法的流程图。
图7为本发明实施例中的智能端口芯片的模块图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
基于图2所示的同时包括FC网络及以太网络的SAN中，在进行不同网络切换时，需要手动设置UTA的端口类型的问题，本发明实施例将图2中的UTA端口更换为一种如图3所示的智能端口108，所述智能端口108能自动识别所接收的对端发送的信号的类型，并将所述智能端口108切换为与所述信号类型对应的端口，从而自动根据对端发送的信号类型设置智能端口108的端口类型，而无需手动设置。
所述智能端口108由一智能端口芯片40(如图4所示)提供，本实施例中，所述智能端口芯片40安装在所述存储设备104中，并为所述存储设备104提供智能端口功能。但在实际使用时，所述智能端口芯片40可安装在任意需要智能端口的设备中，而并不仅限于安装至存储设备中。
如图4所示，是本发明实施例中的提供所述智能端口108的智能端口芯片40的结构图。
所述智能端口芯片40包括处理器401、存储器402、至少一个智能端口108、总线404。所述处理器401通过总线404与其他元件连接，以与其他元件进行通讯。
本实施例中，对端发送的信号为光信号，所述智能端口108也为光端口，可连接一个光模块405，当光模块405连接至智能端口108后，所述光模块405即可接收对端发来的光信号，并将接收到的光信号转换为电信号后传输给所述智能端口108，智能端口108将电信号传输至所述处理器401进行处理，如此，即可实现所述智能端口108与对端进行通讯。
所述光模块405包括接收端Rx及发送端Tx，所述接收端Rx用于接收对端发送的光信号，并将接收到的光信号转换为电信号，转换后的电信号通过所述智能端口108传输至所述处理器401进行处理，所述处 理器401将要发送的信息传输至所述智能端口108，所述光模块405将智能端口108传输的电信号转换为光信号后，由所述光模块405的发送端Tx发送至对端。
所述存储器402可以为非易失性存储器(non-volatile memory,NVM)，其中存储有端口类型确定程序406，及所述智能端口芯片40所支持的端口类型对应的端口协议，例如ETH端口协议407及FC端口协议408，本发明实施例中，所述智能端口108可支持至少两种端口类型，每种端口类型对应一种端口协议。在所述光模块405插入所述智能端口108后，所述处理器401侦测到对端传输的协商信号时，即运行所述端口类型确定程序406并根据所述协商信号与对端端口进行速率协商，并在速率协商好之后，根据所协商的速率确定所述智能端口108当前的端口类型，并启动该端口类型对应的端口协议设置所述智能端口108，以与对端建立连接，建立连接之后，即可接收对端传输的数据信号，并将所接收的数据信号传输至所述存储设备104的控制器1041进行处理，如此即可与对端建立正常的数据通讯。
如图5所示，为所述智能端口芯片40与对端建立连接的方法的流程图。所述方法具体由所述处理器401运行所述端口类型确定程序406来执行。所述方法包括：
步骤S501，接收对端发送的协商信号。
本实施例中，所述对端发送的协商信号是由与所述智能端口108连接的FC或者ETH交换机发送的协商信号，在服务器与存储设备直接相连的实施例中，对端发送的协商信号可以是直接由服务器的FC端口或者ETH端口发送的协商信号。
所述协商信号具有特定的编码，所述处理器401在接收到对端发送的信号后，首先识别所接收的信号是否具有特定的编码，如果是具有特定编码的信号，即可确定所接收的信号为协商信号。
步骤S502，根据接收到的协商信号协商与对端的通讯速率。
此处，两个端口之间的速率协商遵循FC-FS-3(Fibre Channel Framing and Signaling–3)标准，具体协商的方法请参照图6的描述。
步骤S503，根据所协商的通讯速率确定所述智能端口108的应设 置的端口类型。
本实施例，所述存储器402中还存储有所述智能端口芯片40所支持的每种端口类型所支持的速率值的集合，例如FC端口所支持的速率值的集合为{4Gbps、8Gbps、16Gbps、32Gbps}，ETH端口所支持的速率值的集合为{10Gbps、25Gbps}。如此，通过将所确定的通讯速率与存储器402中存储的每种类型端口所支持的速率进行比对，如果所述通讯速率与一个速率集合中的其中一个速率一致，则可确定该速率集合对应的端口类型即为所述智能端口的端口类型。例如，若所确定的通讯速率为10Gbps，为ETH端口所支持的其中一种速率，则可确定所述智能端口的类型为ETH端口。
步骤S504，根据所确定的应设置的端口类型获取端口协议，设置所述智能端口的端口类型。
如上所述，所述存储器402中存储有所述智能端口108所能支持的所有端口类型的通讯协议，在所述智能端口108的端口类型确定之后，即可调用所述端口类型对应的通讯协议，将所述智能端口108设置为相应类型的端口，如此即可完成对所述智能端口108的自动设置，而无需人工干预。
步骤S505，建立与对端的连接，以与对端进行数据通讯。
通过本发明的上述实施例，所述智能端口108能自动识别所接收的对端发送的协商信号的类型，并将所述智能端口108切换为与所述信号类型对应的端口，从而自动根据对端发送的信号类型设置智能端口的端口类型，而无需手动设置。
如图6所示，为所述处理器401根据接收到的协商信号协商与对端的通讯速率的方法的流程图。
步骤S61，所述处理器401侦测对端发送的协商信号。
对端可以是交换机的端口也可以是服务器的端口，对端发送协商信号的端口可以是FC端口，也可以是以太网端口。在两端的光模块都连接上之后，所述智能端口108的光模块405的接收端Rx即可侦测到对端发射的协商信号，对端也可以侦测到所述智能端口108的光模块405的发送端Tx发射的协商信号。在本发明实施例中，为了节省侦测 对端信号产生的能耗，则可设定每隔一段时间，例如1.6ms侦测一次。
步骤S62，在侦测到对端发送的协商信号后，所述处理器401设置智能端口108的接收端Rx的接收速率Rxv为接收速率列表中的最大速率Rxmax，设置智能端口108的发送端Tx的发送速率Txv为发送速率列表中的最大速率Txmax，并启动接收速率计时器及发送速率计时器。
本实施例中，所述接收端速率列表及发送端速率列表按照速率从大到小的顺序列出了所述智能端口108所支持的所有速率，也即为所述智能端口108所支持的每种端口类型所支持的速率的总的集合。例如，所述智能端口108支持的端口类型有FC端口及ETH端口，FC端口所支持的速率为{4Gbps、8Gbps、16Gbps、32Gbps}，ETH端口所支持的速率为{10Gbps、25Gbps}，则所述接收端速率列表及发送端速率列表为{4Gbps、8Gbps、10Gbps、16Gbps、25Gbps、32Gbps}。所述智能端口108能与对端进行通讯的速率即为所述智能端口所支持的速率。所述智能端口108即可根据所述接收端速率列表及发送端速率列表中列出的速率进行速率协商。
另外，在本实施例中，还设置了接收速率计时器及发送速率计时器，所述接收速率计时器用于控制接收速率的协商时间，所述发送速率计时器用于控制发送速率的协商时间。具体应用请参考下文的描述。
步骤S63，每隔第一预设时间，确定所接收的对端的协商信号的速率。
在速率协商的过程中，进行速率协商的两端所发送的协商信号是不断变化的，所以要每隔第一预设时间，重新确定一次所接收到的协商信号的速率，以触发一次接收端速率的协商。
步骤S64，确定所接收的协商信号的速率是否与所设置的智能终端108的接收速率Rxv一致，若不一致，则说明没有协商上，则执行步骤S66，若一致，则说明所述智能端口108支持对端端口发送的速率，则执行步骤S65。
步骤S65，判断所述当前接收速率是否大于等于所设置的智能端口108的当前发送速率，若大于或者等于，则说明当前所协商的速率， 即所述当前接收速率为两端都支持的最大速率，则说明所述智能端口108与对端的速率协商上了，则执行步骤S67，将所述当前接收速率作为智能端口与对端的协商速率。若小于，则说明智能端口108支持对端的发送速率，但是，该发送速率可能不是智能端口与对端端口所共同支持的速率的最大值，所以还要继续协商，则执行步骤S66。
步骤S66，判断所述接收速率计时器的计时是否大于第二预设时间。
所述第二预设时间为预先设置的进行接收速率协商的时长，该第二预设时间与第一预设时间及接收速率列表中的速率的个数有关，第一预设时间乘以接收速率列表中的速率的个数即为第二预设时间，这样可以保证在第二预设时间内，所述接收速率列表中的所有速率都协商过一次。当所述接收速率计时器的计时不大于所述第二预设时间时，则执行步骤S68，当所述接收速率计时器的计时大于所述第二预设时间时，则执行步骤S69。
步骤S68，更新当前接收速率Rxv，更新后的当前接收速率为接收速率列表中更新前的当前接收速率Rxv的下一个速率Rxnext，以准备对所述下一个速率Rxnext进行协商，还可以将所述下一个速率Rxnext记录为一临时接收速率，以方便后面进行发送速率协商时使用，然后返回步骤S63。
步骤S69，将当前接收速率Rxv设置为与当前的发送速率Txv相等。
步骤S70，确定所接收到的协商信号的速率是否与当前接收速率Rxv一致，若一致，则说明所接收到的协商信号速率与智能端口108的当前发送速率Txv协商上了，则执行步骤S67；若不一致，则执行步骤S71。
执行步骤S69及S70，即将当前接收速率Rxv设置为与当前的发送速率Txv后，再与所接收到的协商信号的速率进行一次协商，如果协商上了，则不需要执行后续调节当前发送速率而继续进行协商的过程，从而可以快速的确定协商速率。
步骤S71，判断发送速率计时器所计时时长是否超过第三预设时 长。该第三预设时长用于控制发送速率的协商时长，所述第三预设时长与所述第二预设时长及所述发送速率列表中的发送速率的个数有关，即所述第三预设时长等于所述第二预设时长乘以所述发送速率列表中的发送速率的个数，这样可以保证在所述第三周期内，所述发送速率列表中的每个发送速率都被协商过一次。若所述发送速率计时器所计时时长超过第三预设时长，则执行步骤S72，若所述发送速率计时器所计时时长没有超过第三预设时长，则执行步骤73。
步骤72，更新当前发送速率Txv，更新后的当前发送速率Txv为发送速率列表中更新前的当前发送速率的下一速率Txnext，设置当前的接收速率为步骤68中记录的临时接收速率，然后返回步骤S63。即在当前发送速率Txv更新后，对接收速率列表中的接收速率再进行一轮协商。将当前接收速率Rxv设置为所述临时接收速率Rxmem，可以在当前发送速率Txv更新后，使接收速率从接收速率计时器结束计时时所记录的临时接收速率Rxmem处开始协商。
步骤S73，本次连接失败，结束协商。
通过上述方法即可确定所述智能端口108与对端的通讯速率，处理单元根据所确定的通讯速率即可确定所述智能端口的端口类型。
如图7所示，为本发明实施例提供的一种智能端口700的模块图。所述智能端口包括信号接收模块701、速率确定模块702、端口设置模块703、及建立连接模块704。
所述信号接收模块701用于接收对端发送的协商信号，与图5所描述的建立连接的方法的步骤S501对应。
所述速率确定模块702用于根据接收到的协商信号协商与对端的通讯速率，与图5所描述的建立连接的方法的步骤S501对应。此处，两个端口之间的协商信号的速率协商遵循FC-FS-3(Fibre Channel Framing and Signaling–3)标准，具体协商的方法请参照图6的描述，在此不再赘述。
所述端口设置模块703用于根据所述速率确定模块702所协商的通讯速率确定所述智能端口的端口类型，并根据所确定的端口类型获取所述端口类型对应的端口协议，以设置所述智能端口的端口类型， 与图5所描述的建立连接的方法的步骤S503及S504对应。
本实施例，所述智能端口的端口类型的确定方式与图5所描述的建立连接的方法中端口类型的确定方式一致，在此不再赘述。
所述建立连接模块704，用于在所述端口设置模块将所述智能端口设置好之后，即可建立与对端的连接，以与对端进行数据通讯。
如此，所述智能端口108能自动识别所接收的对端发送的协商信号的信号类型，并将所述智能端口108切换为与所述信号类型对应的端口，从而自动根据对端发送的协商信号的信号类型设置智能端口的端口类型，而无需手动设置。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
以上对本发明实施例所提供的数据块写入装置及方法进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种建立端口连接的方法，应用于端口芯片，所述端口芯片包括端口，所述端口支持至少一种端口类型，其特征在于，所述方法包括：
    通过所述端口接收对端发送的协商信号；
    根据所述协商信号确定所述端口与对端的通讯速率；
    根据所述通讯速率确定所述端口的应设置的端口类型，并将所述端口设置为所述应设置的端口类型；
    建立所述端口与所述对端的连接。
  2. 如权利要求1所述的方法，其特征在于，所述端口所支持的至少一种端口类型中的每种端口类型对应一速率集合，所述根据所述通讯速率确定所述端口的类型包括：
    确定所述通讯速率所在的速率集合；
    根据所述速率集合确定所述端口的应设置的端口类型。
  3. 如权利要求1所述的方法，其特征在于，每种端口类型对应一端口协议，所述将所述端口设置为所述端口类型包括：
    根据所确定的应设置的端口类型获取所述端口类型对应的端口协议；
    调用所述端口协议将所述端口设置为所述端口类型。
  4. 如权利要求3所述的方法，其特征在于，所述端口所支持的至少一种端口类型中的每种端口类型对应一速率集合，所述端口芯片中还存储有接收速率列表及发送速率列表，所述接收速率列表及发送速率列表中的速率均为所有端口类型对应的速率集合中的全部速率，在根据所述协商信号确定所述端口与对端的通讯速率时，按照接收速率列表及发送速率列表中的速率的从大到小的顺序进行协商。
  5. 一种端口芯片，包括端口，所述端口支持多种端口类型，其特征在于，所述端口芯片还包括：
    信号接收模块，用于通过所述端口接收对端发送的协商信号；
    速率确定模块，用于根据所述协商信号确定所述端口与对端的通 讯速率；
    端口设置模块，用于根据所述通讯速率确定所述端口的应设置的端口类型，并将所述端口设置为所述应设置的端口类型；
    建立连接模块，用于建立所述端口与所述对端的连接。
  6. 如权利要求5所述的端口芯片，其特征在于，所述端口所支持的多种端口类型中的每种端口类型对应一速率集合，所述端口设置模块在确定所述端口的端口类型时，具体用于确定所述通讯速率所在的速率集合，根据所述速率集合确定所述端口的端口类型。
  7. 如权利要求5所述的端口芯片，其特征在于，每种端口类型对应一端口协议，所述端口设置模块在将所述端口设置为所述端口类型时，具体用于：
    根据所确定的应设置的端口类型获取所述端口类型对应的端口协议；
    调用所述端口协议将所述端口设置为所述端口类型。
  8. 如权利要求5所述的端口芯片，其特征在于，所述端口为光端口，所述光端口包括光模块，所述光模块支持所述端口所支持的所有端口类型对应的速率。
  9. 如权利要求8所述的端口芯片，其特征在于，所述端口所支持的多种端口类型中的每种端口类型对应一速率集合，所述端口芯片中还存储有接收速率列表及发送速率列表，所述接收速率列表及发送速率列表中的速率均为所有端口类型对应的速率集合中的全部速率，在根据所述协商信号确定所述端口与对端的通讯速率时，按照接收速率列表及发送速率列表中的速率的从大到小的顺序进行协商。
  10. 一种端口芯片，包括端口、存储器、处理器及总线，所述处理器通过所述总线与所述端口及存储器连接，所述存储器中存储有程序指令，所述处理器运行所述程序指令以执行权利要求1-4中任意一项所述的方法。
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