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1. 发明授权

US5390299A System for using three different methods to report buffer memory occupancy information regarding fullness-related and/or packet discard-related information 失效
标题翻译：用于使用三种不同方法来报告关于与丰满度和/或丢弃丢弃相关的信息的缓冲存储器占用信息的系统
公开(公告)号：US5390299A
公开(公告)日：1995-02-14
申请号：US814998
申请日：1991-12-27
申请人： Satish L. Rege , Kadangode K. Ramakrishnan , David A. Gagne
发明人： Satish L. Rege , Kadangode K. Ramakrishnan , David A. Gagne
IPC分类号： G06F13/18 , G06F13/38 , G06F13/42 , G06F12/00
CPC分类号： G06F13/387 , G06F13/18
摘要： In a network adapter for a host computer, the data occupancy level of a buffer memory used to store network packets is monitored, and the occupancy level is reported to the host. The buffer memory is organized as a plurality of fixed-size pages. A memory controller uses an allocation counter to track the number of pages available to store incoming data packets, and the value of the allocation counter is compared with a programmable threshold. A data word accompanies each packet delivered to the host to indicate whether the allocation count exceeds the threshold. When the buffer memory has insufficient free space to store an incoming packet, the packet is discarded. The network adapter keeps a count of the number of discarded packets. An adapter manager microprocessor, which is part of the network adapter, reports the count to the host computer on request. The adapter manager also reports the value of the allocation count and other important network adapter variables to the host computer.
摘要翻译：在用于主计算机的网络适配器中，监视用于存储网络分组的缓冲存储器的数据占用级别，并将占用级别报告给主机。缓冲存储器被组织为多个固定大小的页面。存储器控制器使用分配计数器来跟踪可用于存储输入数据分组的页面数量，并将分配计数器的值与可编程阈值进行比较。数据字伴随传送到主机的每个分组，以指示分配计数是否超过阈值。当缓冲存储器没有足够的可用空间来存储传入的数据包时，丢弃数据包。网络适配器保留丢弃数据包的数量。适配器管理器微处理器是网络适配器的一部分，可根据要求向计算机报告计数。适配器管理器还将分配计数和其他重要网络适配器变量的值报告给主机。

2. 发明授权

US5303347A Attribute based multiple data structures in host for network received traffic 失效
标题翻译：主机中基于属性的多个数据结构，用于网络接收流量
公开(公告)号：US5303347A
公开(公告)日：1994-04-12
申请号：US815007
申请日：1991-12-27
申请人： David A. Gagne , Satish L. Rege
发明人： David A. Gagne , Satish L. Rege
IPC分类号： G06F13/14
CPC分类号： G06F13/14
摘要： A method and apparatus for transferring packets of information with different attributes from a device interface to buffers in a host memory dedicated to particular attribute values or ranges of values. The apparatus consists of multiple shared data structures in the form of receive rings, each associated with memory buffers dedicated to a particular range of values for a particular packet attribute. The device interface determines which receive ring is associated with a buffer dedicated to the proper attribute value range by comparing the value of the attribute of the received packet with the values of attributes associated with the buffers of each ring. A sequencing ring is provided to store the order in which each receive ring must be accessed by the host cpu when retrieving packets. This sequencing ring ensures that the host cpu will retrieve the packets in the order in which they were received.
摘要翻译：用于将具有不同属性的信息的分组从设备接口传送到专用于特定属性值或值范围的主机存储器中的缓冲器的方法和装置。该装置由接收环形式的多个共享数据结构组成，每个共享数据结构与专用于特定分组属性的特定范围值的存储器缓冲器相关联。设备接口通过将接收到的分组的属性的值与每个环的缓冲器相关联的属性的值进行比较来确定哪个接收环与专用于适当属性值范围的缓冲器相关联。提供了一个排序环，用于存储在检索数据包时主机cpu中每个接收环必须被访问的顺序。此排序环确保主机cpu将按照接收的顺序检索数据包。

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