公开(公告)号：US20140233571A1

公开(公告)日：2014-08-21

申请号：US14261199

申请日：2014-04-24

Applicant: SOLARFLARE COMMUNICATIONS, INC.

Inventor： Steven L. Pope ,  David Riddoch ,  Dimitri Kitariev ,  Derek Roberts

IPC: H04L12/741

CPC classification number: H04L45/74 ,  H04L49/30 ,  H04L69/22

Abstract: Roughly described, a header processing engine for a network interface device has a header recognizer to parse the headers of a data packet stored at a buffer to identify the type and position of each header in the packet; a constructor unit; and a processor including an execution pipeline. The header recognizer is configured to, for each header: select in dependence on the header type commands stored at a command memory; and form one or more messages for the constructor unit identifying the selected commands and the position of the header in the data packet. The commands selected for the packet headers are collectively such as to, if executed by the constructor unit, cause the constructor unit to generate a data structure which operates to cause the processor to process of the packet headers without accessing the data packet at the buffer.

Abstract translation: 粗略地描述，网络接口设备的报头处理引擎具有报头识别器，用于解析存储在缓冲器中的数据分组的报头以识别分组中每个报头的类型和位置; 一个构造单元; 以及包括执行流水线的处理器。 标题识别器被配置为对于每个标题：根据存储在命令存储器中的标题类型命令进行选择; 并且为构造器单元形成一个或多个消息，用于标识所选择的命令和头部在数据分组中的位置。 选择用于分组报头的命令集体地如此，如果由构造器单元执行，则使构造器单元生成数据结构，该数据结构用于使处理器处理分组报头而不访问缓冲器处的数据分组。

公开(公告)号：US09124539B2

公开(公告)日：2015-09-01

申请号：US14261199

申请日：2014-04-24

Applicant: SOLARFLARE COMMUNICATIONS, INC.

Inventor： Steven L. Pope ,  David Riddoch ,  Dimitri Kitariev ,  Derek Roberts

IPC: H04L12/28 ,  H04L12/741 ,  H04L12/935 ,  H04L29/06

CPC classification number: H04L45/74 ,  H04L49/30 ,  H04L69/22

Abstract: Roughly described, a header processing engine for a network interface device has a header recognizer to parse the headers of a data packet stored at a buffer to identify the type and position of each header in the packet; a constructor unit; and a processor including an execution pipeline. The header recognizer is configured to, for each header: select in dependence on the header type commands stored at a command memory; and form one or more messages for the constructor unit identifying the selected commands and the position of the header in the data packet. The commands selected for the packet headers are collectively such as to, if executed by the constructor unit, cause the constructor unit to generate a data structure which operates to cause the processor to process of the packet headers without accessing the data packet at the buffer.

Abstract translation: 粗略地描述，网络接口设备的报头处理引擎具有报头识别器，用于解析存储在缓冲器中的数据分组的报头以识别分组中每个报头的类型和位置; 一个构造单元; 以及包括执行流水线的处理器。 标题识别器被配置为对于每个标题：根据存储在命令存储器中的标题类型命令进行选择; 并且为构造器单元形成一个或多个消息，用于标识所选择的命令和头部在数据分组中的位置。 选择用于分组报头的命令集体地如此，如果由构造器单元执行，则使构造器单元生成数据结构，该数据结构用于使处理器处理分组报头而不访问缓冲器处的数据分组。