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1. 发明公开

EP3121731A1 MEMORY MANAGEMENT METHOD AND DEVICE 有权
标题翻译：内存管理方法和设备
公开(公告)号：EP3121731A1
公开(公告)日：2017-01-25
申请号：EP15789083.1
申请日：2015-04-15
申请人： Huawei Technologies Co. Ltd.
发明人： LIU, Yao , HUANG, Yongbing , CHEN, Mingyu , CUI, Zehan , CHEN, Licheng , RUAN, Yuan
IPC分类号： G06F12/02
CPC分类号： G06F12/1027 , G06F3/0608 , G06F3/0619 , G06F3/0647 , G06F3/0652 , G06F3/0664 , G06F3/0685 , G06F12/1009 , G06F2212/1024 , G06F2212/684
摘要： Embodiments of the present invention provide a memory management method and a device, where the method includes: receiving, by a memory manager, a memory access request, where the memory access request carries a virtual address; determining a page fault type of the virtual address if the memory manager finds, in a translation lookaside buffer TLB and a memory, no page table entry corresponding to the virtual address; allocating, by the memory manager, a corresponding page to the virtual address if the page fault type of the virtual address is a blank-page-caused page fault, where the blank-page-caused page fault means that no corresponding page is allocated to the virtual address; and updating, by the memory manager, the page table entry corresponding to the virtual address to the memory and the TLB. By determining the page fault type of the virtual address, the memory manager does not generate a page fault when a blank-page-caused page fault occurs, but allocates a corresponding page to the virtual address. Therefore, the method in the embodiments can reduce a quantity of occurrences of the page fault, thereby improving memory management efficiency.

2. 发明授权

EP1568173B1 FLOW CONTROL METHOD OF MAN TRANSMISSION DEVICE 失效
标题翻译：流量控制方法的城域网传输
公开(公告)号：EP1568173B1
公开(公告)日：2007-10-03
申请号：EP03811330.4
申请日：2003-11-19
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Wu , LIU, Yao
IPC分类号： H04L12/56
CPC分类号： H04L12/5602 , H04L47/266 , H04L47/29 , H04L47/30 , H04L49/351 , H04L49/50 , H04L2012/5632
摘要： The invention disclosed a flow control method of MAN transmission device. When congestion occurred at receiving end data transmission device data transmission port, Ethernet flow aontrol frame is fed to sending end transmission device.and running data sending port flow control; when congestion occurred at data transmission port single board, single board stage flow aontrol frame id fed to message forwarding module of data transmission port, and running single board flow control; When congestion occurred at logic sub-channel of single board, logic sub-channel of single board flow aontrol frame is fed to message forwarding module of data transmission port, and running logic sub-channel of single board flow control; the invention expanded realization flow control policy of MAN transmission device, such that more perfect the MAN flow control policy, and to satisfy the require of complicate flow control service of Ethernet MAN transmission device.

3. 发明公开

EP1568173A1 FLOW CONTROL METHOD OF MAN TRANSMISSION DEVICE 失效
标题翻译： FLUSSSTEUERUNGSVERFAHREN EINER MAN-ÜBERTRAGUNGSEINRICHTUNG
公开(公告)号：EP1568173A1
公开(公告)日：2005-08-31
申请号：EP03811330.4
申请日：2003-11-19
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Wu , LIU, Yao
IPC分类号： H04L12/26
CPC分类号： H04L12/5602 , H04L47/266 , H04L47/29 , H04L47/30 , H04L49/351 , H04L49/50 , H04L2012/5632
摘要： A flow control method of MAN transmission equipment is put forward. When congestion occurs in a data transmission port of a data transmission equipment at a receiving end, an Ethernet flow control frame is fed back to a transmission equipment at a sending end, to perform flow control of the data transmission port. When congestion occurs in a board of the data transmission port, a board-level flow control frame is fed back to a packet forwarding module of the data transmission port, to perform flow control of the board. When congestion occurs in a logical sub-channel of the board, a channel-level flow control frame is fed back to the packet forwarding module of the data transmission port, to perform flow control of the logical sub-channel. The present invention extendedly implements flow control strategy of MAN transmission equipment, making MAN flow control strategy more preferable, satisfying flow control service requirement of a complicated Ethernet MAN transmission equipment.
摘要翻译：提出了MAN传输设备的流量控制方法。当在接收端的数据传输设备的数据传输端口发生拥塞时，将以太网流控制帧反馈到发送端的传输设备，以执行数据传输端口的流量控制。当数据传输端口的板卡发生拥塞时，将板级流量控制帧反馈给数据传输端口的报文转发模块，对板进行流量控制。当在板的逻辑子信道中发生拥塞时，将信道级流控制帧反馈给数据传输端口的分组转发模块，以执行逻辑子信道的流控制。本发明扩展了MAN传输设备的流量控制策略，使MAN流量控制策略更加优化，满足了复杂以太网城域网传输设备的流量控制服务需求。

4. 发明公开

EP3279788A1 ACCESS METHOD, DEVICE AND SYSTEM FOR EXPANDING MEMORY 有权
标题翻译：用于扩展存储器的访问方法，设备和系统
公开(公告)号：EP3279788A1
公开(公告)日：2018-02-07
申请号：EP16782466.3
申请日：2016-02-03
申请人： Huawei Technologies Co. Ltd.
发明人： CUI, Zehan , CHEN, Mingyu , LIU, Yao , RUAN, Yuan
IPC分类号： G06F3/06
CPC分类号： G06F3/0608 , G06F3/06 , G06F3/0619 , G06F3/065 , G06F3/0656 , G06F12/0215 , G06F12/0623 , G06F13/1673 , G06F13/1689 , G06F13/1694 , G06F13/4234 , G06F2212/1008 , G06F2212/1024 , G06F2213/0064
摘要： A method for accessing an extended memory, a device, and a system are disclosed. The method includes: receiving N+1 memory access requests serially sent by a processor system in a computer, where access addresses in all the memory access requests are different from each other and point to a same physical address, the physical address is a storage address of to-be-accessed data in the extended memory, N≥1, and N is an integer; when a first memory access request is received, sending a read request to the extended memory, and returning a specific response message to a processor; in a process of reading the to-be-accessed data from the extended memory, each time a memory access request is received, returning a specific response message to the processor within a delay specified in a memory bus protocol until the to-be-accessed data is written into a data buffer; and then returning the to-be-accessed data to the processor system.
摘要翻译：公开了一种用于访问扩展存储器，设备和系统的方法。该方法包括：接收计算机中处理器系统串行发送的N + 1个内存访问请求，其中所有内存访问请求中的访问地址彼此不同且指向相同的物理地址，所述物理地址为存储地址扩展存储器中待访问数据的N≥1，N为整数; 当接收到第一存储器访问请求时，向所述扩展存储器发送读取请求，并且向处理器返回特定响应消息; 在从扩展存储器读取待访问数据的过程中，每当接收到存储器访问请求时，在存储器总线协议规定的延迟内向处理器返回特定的响应消息，直到要被访问数据被写入数据缓冲区; 然后将待访问数据返回给处理器系统。

5. 发明授权

EP3279788B1 ACCESS METHOD, DEVICE AND SYSTEM FOR EXPANDING MEMORY 有权
公开(公告)号：EP3279788B1
公开(公告)日：2019-08-21
申请号：EP16782466.3
申请日：2016-02-03
申请人： Huawei Technologies Co. Ltd.
发明人： CUI, Zehan , CHEN, Mingyu , LIU, Yao , RUAN, Yuan
IPC分类号： G06F3/06 , G06F13/16 , G06F13/42 , G06F12/02 , G06F12/06

6. 发明授权

EP3163451B1 MEMORY MANAGEMENT METHOD AND DEVICE, AND MEMORY CONTROLLER 有权
公开(公告)号：EP3163451B1
公开(公告)日：2018-10-10
申请号：EP15828139.4
申请日：2015-07-22
申请人： Huawei Technologies Co. Ltd.
发明人： LIU, Yao , CHEN, Licheng , CUI, Zehan , CHEN, Mingyu
IPC分类号： G06F12/00
CPC分类号： G06F12/1009 , G06F12/1027 , G06F2212/1016 , G06F2212/68 , G06F2212/681 , G06F2212/684
摘要： A memory management method and device are disclosed. The method includes: managing, by a storage management device, a memory; and when determining that a page table does not include a virtual address carried in a fetch request, managing, by the memory management device, the memory instead of triggering an interrupt of an operating system, so that load on the operating system can be reduced. When determining that the virtual address is valid, the memory management device applies for a blank page. The memory management device is located in a memory controller and is closer to a physical memory, so that memory management efficiency can be effectively improved.

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