发明名称 |
Dynamically allocating limited system memory for DMA among multiple adapters |
摘要 |
A method, apparatus, and computer program product dynamically allocate limited system memory for direct memory access (DMA) among a plurality of input/output (I/O) adapters in a system partition. Initially a minimum entitlement of I/O entitled memory capacity is allocated to each of the respective multiple I/O adapters. The minimum entitlement enables operation of an I/O adapter driver. Additional entitlement of I/O entitled memory capacity is selectively allocated based upon I/O demands of each I/O adapter. |
申请公布号 |
US8135934(B2) |
申请公布日期 |
2012.03.13 |
申请号 |
US20090473573 |
申请日期 |
2009.05.28 |
申请人 |
DEVILBISS COLIN R.;HOLM WAYNE G.;MURRAY DAVID B.;WHITNEY KRISTOPHER C.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
DEVILBISS COLIN R.;HOLM WAYNE G.;MURRAY DAVID B.;WHITNEY KRISTOPHER C. |
分类号 |
G06F12/02 |
主分类号 |
G06F12/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|