| commit | 24920c8a6358bf5532f1336b990b1c0fe2b599ee | [log] [tgz] |
|---|---|---|
| author | Zhang Rui <rui.zhang@intel.com> | Fri Jul 04 13:32:17 2008 +0800 |
| committer | Jeff Garzik <jgarzik@redhat.com> | Mon Jul 14 15:59:33 2008 -0400 |
| tree | 576c2dcbde9c76e13585ed37208640fbd3dba005 | |
| parent | 1e9dbc9291738149577cc488fd441f061815e02e [diff] |
AHCI: speed up resume During resume, sleep 1 second to wait for the HBA reset to finish is a waste of time. According to the AHCI 1.2 spec, We should poll the HOST_CTL register, and return error if the host reset is not finished within 1 second. Test results show that the HBA reset can be done quickly(in usecs). And this patch may save nearly 1 second during resume. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>