发明公开
EP1692582A2 REDUCING NUMBER OF WRITE OPERATIONS RELATIVE TO DELIVERY OF OUT-OF-ORDER RDMA SEND MESSAGES
有权
基本信息:
- 专利标题： REDUCING NUMBER OF WRITE OPERATIONS RELATIVE TO DELIVERY OF OUT-OF-ORDER RDMA SEND MESSAGES
- 专利标题（中）：异径写操作的数量相对于输送来自外部的顺序发生RDMA SEND新闻
- 申请号：EP04813117.1 申请日：2004-12-07
- 公开(公告)号：EP1692582A2 公开(公告)日：2006-08-23
- 发明人： BIRAN, Giora , MACHULSKY, Zorik , MAKHERVAKS, Vadim
- 申请人： International Business Machines Corporation
- 申请人地址： New Orchard Road Armonk, N.Y. 10504 US
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： New Orchard Road Armonk, N.Y. 10504 US
- 代理机构： Williams, Julian David
- 优先权： US733594 20031211
- 国际公布： WO2005060579 20050707
- 主分类号： G06C1/00
- IPC分类号： G06C1/00
摘要：
An RNIC (16) implementation that performs direct data placement to memory where all segments of a particular connection are aligned, or moves data through reassembly buffers (34) where all segments of a particular connection are non-aligned. The type of connection that cuts-through without accessing the reassembly buffers (34) is referred to as a “Fast” connection because it is highly likely to be aligned, while the other type is referred to as a “Slow” connection. When a consumer establishes a connection, it specifies a connection type. The connection type can change from Fast to Slow and back. The invention reduces memory bandwidth, latency, error recovery using TCP retransmit and provides for a “graceful recovery” from an empty receive queue. The implementation also may conduct CRC validation for a majority of inbound DDP segments in the Fast connection before sending a TCP acknowledgement (Ack) confirming segment reception.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06C | 计算均用机械方式实现的数字计算机 |
| ------G06C1/00 | 计算器具，其中计算的构件至少构成显示结果的部件，并且是直接用手操纵的，例如算盘、袖珍加法器 |