Commit Graph

10 Commits

Author SHA1 Message Date
Jung-uk Kim
9857ff20da - Correct amr_enquiry3 structure[1].
- Remove redundant AMR_CONFIG_ENQ3_SOLICITED_NOTIFY from the previous
commit while I am here.

PR:		kern/29727 [1]
2006-01-13 23:50:21 +00:00
Scott Long
5351742ea2 Mega update to the LSI MegaRAID driver:
1.  Implement a large set of ioctl shims so that the Linux management apps
from LSI will work.  This includes infrastructure to support adding, deleting
and rescanning arrays at runtime.  This is based on work from Doug Ambrosko,
heavily augmented by LSI and Yahoo.

2.  Implement full 64-bit DMA support.  Systems with more than 4GB of RAM
can now operate without the cost of bounce buffers.  Cards that cannot do
64-bit DMA will automatically revert to using bounce buffers.  This option
can be forced off by setting the 'hw.amr.force_sg32" tunable in the loader.
It should only be turned off for debugging purposes.  This work was sponsored
by Yahoo.

3.  Streamline the command delivery and interrupt handler paths after
much discussion with Dell and LSI.  The logic now closely matches the
intended design, making it both more robust and much faster.  Certain
i/o failures under heavy load should be fixed with this.

4.  Optimize the locking.  In the interrupt handler, the card can be checked
for completed commands without any locks held, due to the handler being
implicitely serialized and there being no need to look at any shared data.
Only grab the lock to return the command structure to the free pool.  A
small optimization can still be made to collect all of the completions
together and then free them together under a single lock.

Items 3 and 4 significantly increase the performance of the driver.  On an
LSI 320-2X card, transactions per second went from 13,000 to 31,000 in my
testing with these changes.  However, these changes are still fairly
experimental and shouldn't be merged to 6.x until there is more testing.

Thanks to Doug Ambrosko, LSI, Dell, and Yahoo for contributing towards
this.
2005-12-14 03:26:49 +00:00
Scott Long
35e050281e Add support for the LSI 320-2E PCI-Express controller. Fix a couple of bugs
in the ioctl handler.  Update the LSI copyrights for these.

Obtained from: LSI, Corp
2005-01-23 23:25:41 +00:00
Eric Moore
e8b5e74b61 amr.c,
amr_cam.c,
amrreg.h,
amrvar.h:
- added support for 12/16 byte cdb's, effecting CAM branch only ( non-disk support )

amrreg.h:
- increased number of scatter gather elements from 16 to 26.

amr_pci.c:
- amr_pci_free(), incorrect bus tag meant for 'amr_mailbox_dmat' was being freed

all:
- copyright change requested by scottl

Reviewed by:	ps,scottl
MFC after:	1 week
2002-10-30 22:00:11 +00:00
Eric Moore
1a6b414672 (1) added LSI Logic copyright, and legal line 3 in license, and string
changes for "LSILogic"
(2) enabled non-disk support through CAM interface
(3) HA_INQ (a) enabled tagged queuing (b) disable reset during
	driver loading (b) renamed BSDi string to LSI
(4) disabled detecting disk devices during SCSI INQUIRY
(5) changed dcdb single element sglist to send one entire buffer chunk
(6) nsgelem not set in sglist
(7) ap_data_transfer_length not set for dcdb
(8) changed "struct thread" to "d_thread_t" for compatibliity { xxx_open,
	xxx_close, xxx_ioctl }
(9) miscellaneous compatiblity fixes
(10) bug fix for 0x0409/0x1000 card
(11) added compiling amr_cam.c in sys/conf/files
(12) added compiling amr_cam.c in sys/modules/amr/Makefile

Reviewed by:ps
MFC after:1 week
1 week
2002-10-18 21:29:14 +00:00
Alfred Perlstein
4f492bfab5 use __packed. 2002-09-23 18:54:32 +00:00
John Baldwin
19f0fedd94 Comment tokens after #undef <macroname> and #endif.
Reported by:	gcc30
2001-12-13 11:12:30 +00:00
Mike Smith
29e79e51ee Probe generic i960 devices for the old AMI signature as well as the current
one, in order to support adapters with older firmware.

Submitted by:	"Prasanth S." <prasanths@ami.co.in>
2000-12-22 22:23:56 +00:00
Mike Smith
9f1776230d Major update to the AMI MegaRAID driver.
- New support for 40LD firmware found in Series 475 and 471 adapters.
 - Better support for 8LD firmware adapters
 - Ioctl passthrough interface for userland utilities.
 - Improved error handling and queueing.
 - Several bugfixes (including the 'still open' shutdown bug and
   closing some small race conditions).
 - Zone-style command allocator, reducing memory wasted under heavy
   load conditions.
 - CAM interface (disabled and not fully working) for SCSI passthrough
   access to non-disk devices

Thanks to AMI for supplying a pile of new adapters and various other
help in making this happen.
2000-08-30 07:52:50 +00:00
Mike Smith
d5a51e03e7 This is a driver for the AMI MegaRAID family of controllers. It all of
the AMI PCI controllers using the 8LD firmware interface (40LD firmware
will be supported as soon as I have hardware to test with).

These controllers are rebadged by Dell as the PERC, as well as by HP
and possibly other vendors.
1999-10-07 02:23:12 +00:00