tree 833d63cf7fac90e693f0a2503e90d4a1f7362b9d
parent 65101355450df2d935f8d56ac3abef279f28a0e2
author Mark Haverkamp <markh@osdl.org> 1158681583 -0700
committer James Bottomley <jejb@mulgrave.il.steeleye.com> 1159060143 -0500

[SCSI] aacraid: expose physical devices

Received from Mark Salyzyn:

I am placing this functionality into an insmod parameter. Normally the physical
components are exported to sg, and are blocked from showing up in sd.

Note that the pass-through I/O path via the driver through the Firmware to the
physical disks is not an optimized path, the card is designed for Hardware
RAID, elevator sorting and caching. This should not be used as a means for
utilizing the aacraid based controllers as a generic scsi/SATA/SAS controller,
performance should suck by a few percentage points, any RAID meta-data on the
drives will confuse the controller about who owns the drives and there is a
high risk of destroying content in both directions. Unreliable and for
experimentation or strange controlled circumstances only.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>