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linux/drivers/scsi/aacraid
Mark Haverkamp bed30de47b [SCSI] aacraid: interupt mitigation
Received from Mark Salyzyn from Adaptec:

If more than two commands are outstanding to the controller, there is no
need to notify the adapter via a PCI bus transaction of additional
commands added into the queue; it will get to them when it works through
the produce/consumer indexes.

This reduced the PCI traffic in the driver to submit a command to the
queue to near zero allowing a significant number of commands to be
turned around with no need to block for the PCI bridge to flush the
notify request to the adapter.

Interrupt mitigation has always been present in the driver; it was
turned off because of a bug that prevented one from realizing the
usefulness of the feature. This bug is fixed in this patch.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-05 16:49:46 -05:00
..
aachba.c [SCSI] aacraid: New products patch 2005-06-26 08:33:10 -05:00
aacraid.h [SCSI] aacraid: New products patch 2005-06-26 08:33:10 -05:00
commctrl.c Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 2005-07-26 13:28:47 -07:00
comminit.c [SCSI] aacraid: interupt mitigation 2005-08-05 16:49:46 -05:00
commsup.c [SCSI] aacraid: interupt mitigation 2005-08-05 16:49:46 -05:00
dpcsup.c [SCSI] aacraid: remove sparse warnings 2005-05-20 12:53:38 -05:00
linit.c [SCSI] aacraid: New products patch 2005-06-26 08:33:10 -05:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
README [SCSI] aacraid: New products patch 2005-06-26 08:33:10 -05:00
rkt.c [SCSI] 2.6 aacraid: Variable FIB size (updated patch) 2005-05-20 15:48:00 -05:00
rx.c [SCSI] 2.6 aacraid: Variable FIB size (updated patch) 2005-05-20 15:48:00 -05:00
sa.c [SCSI] 2.6 aacraid: Variable FIB size (updated patch) 2005-05-20 15:48:00 -05:00
TODO [SCSI] aacraid: New products patch 2005-06-26 08:33:10 -05:00

AACRAID Driver for Linux (take two)

Introduction
-------------------------
The aacraid driver adds support for Adaptec (http://www.adaptec.com)
RAID controllers. This is a major rewrite from the original 
Adaptec supplied driver. It has signficantly cleaned up both the code
and the running binary size (the module is less than half the size of
the original).

Supported Cards/Chipsets
-------------------------
	Adaptec 2020S
	Adaptec 2025S
	Adaptec 2120S
	Adaptec 2130S
	Adaptec 2200S
	Adaptec 2230S
	Adaptec 2240S
	Adaptec 2410SA
	Adaptec 2610SA
	Adaptec 2810SA
	Adaptec 21610SA
	Adaptec 3230S
	Adaptec 3240S
	Adaptec 4000SAS
	Adaptec 4005SAS
	Adaptec 4800SAS
	Adaptec 4805SAS
	Adaptec 5400S
	Dell PERC 2 Quad Channel
	Dell PERC 2/Si
	Dell PERC 3/Si
	Dell PERC 3/Di
	Dell CERC 2
	HP NetRAID-4M
	Legend S220
	Legend S230
	IBM ServeRAID 8i
	ICP 9014R0
	ICP 9024R0
	ICP 9047MA
	ICP 9087MA
	ICP 9085LI
	ICP 5085AU

People
-------------------------
Alan Cox <alan@redhat.com>
Christoph Hellwig <hch@infradead.org>	(updates for new-style PCI probing and SCSI host registration,
					 small cleanups/fixes)
Matt Domsch <matt_domsch@dell.com>	(revision ioctl, adapter messages)
Deanna Bonds                            (non-DASD support, PAE fibs and 64 bit, added new adaptec controllers
					 added new ioctls, changed scsi interface to use new error handler,
					 increased the number of fibs and outstanding commands to a container)

					(fixed 64bit and 64G memory model, changed confusing naming convention
					 where fibs that go to the hardware are consistently called hw_fibs and
					 not just fibs like the name of the driver tracking structure)
Mark Salyzyn <Mark_Salyzyn@adaptec.com> Fixed panic issues and added some new product ids for upcoming hbas.

Original Driver
-------------------------
Adaptec Unix OEM Product Group

Mailing List
-------------------------
linux-scsi@vger.kernel.org (Interested parties troll here)
Also note this is very different to Brian's original driver
so don't expect him to support it.
Adaptec does support this driver.  Contact either tech support or Mark Salyzyn.

Original by Brian Boerner February 2001
Rewritten by Alan Cox, November 2001