Commit Graph

252 Commits

Author SHA1 Message Date
Søren Schmidt
d78c6e89ae Make certain the the 48bit flag is reset if we dont translate LBA. 2005-05-17 12:31:54 +00:00
Søren Schmidt
6667b30d15 Change the way ioctls are issue to ATA.
The most prominent part is that its now possible to issue ata_requests
directly to say acd0, instead of going through the cumbersome /dev/ata
device.
2005-05-16 13:07:27 +00:00
Søren Schmidt
265da99ce9 Cleanup comments 2005-05-13 10:25:19 +00:00
Søren Schmidt
eeda55ce8e Reshape the dma code to be a bit more flexible so it can cope with
new HW that has new and different demands.
Fix a few nits in former commit in this cleanup crusade.

Sponsored by:	pair.com
2005-05-03 07:55:07 +00:00
Søren Schmidt
0068f98f88 Take newbusification one step further, ie use the device_t more consequently
all way through the code down the layers, instead of the mix'n'match that
resulted from the conversion done earlier.

Sponsored by:	pair.com
2005-04-30 16:22:07 +00:00
Søren Schmidt
e47099593a Now that probing is working in the new fashion, we need to go back to
having ata_getparm issue an ata_request and not fool around with the HW
on its own.
Needed for new HW support.
2005-04-29 11:30:03 +00:00
Søren Schmidt
8dad6b7be5 Rearrange the way the reset code is called.
Prepare for different looking controllers.
2005-04-28 22:08:08 +00:00
Søren Schmidt
1d968d225f Rehash the timeout code to make it more simple.
This also removes the warning timeout on the taskqueues stalling as
I'm tired of getting ATA error reports for problems in other parts ;)
Misc cosmetic and comment cleanups now we are here.
2005-04-21 11:13:39 +00:00
Søren Schmidt
77662bd705 Properly hook in devices found by SATA connect events.
This broke on the changes done to get atapicam happy earlier.
2005-04-20 12:51:54 +00:00
Poul-Henning Kamp
73fbaa74e5 Add a named reference-count KPI to hold off mounting of the root filesystem.
While we wait for holds to be released, print a list of who holds us
back once per second.

Use the new KPI from GEOM instead of vfs_mount.c calling g_waitidle().

Use the new KPI also from ata.

With ATAmkIII's newbusification, ata could narrowly miss the window
and ad0 would not exist when we tried to mount root.
2005-04-18 21:21:26 +00:00
Søren Schmidt
b3c3ba2ed7 Add uma zone for composite ops.
Submitted by:	des
2005-04-18 16:01:56 +00:00
Søren Schmidt
d1719942b3 Make things compile again with ATA_STATIC_ID. 2005-04-15 14:19:41 +00:00
Søren Schmidt
9f2ea2bcd5 Move the creation of ata_channel child devices to the channel code.
This allows to attach to the children (ATA devices) even without a
driver being attached. This allows atapi-cam to do its work both
with and without the pure ATAPI driver being present.

ATA patches by /me
ATAPI-cam pathes by Thomas
2005-04-15 10:20:52 +00:00
Søren Schmidt
b0a7e6a56a Generalise the SATA PHY handling code so it wont be duplicated for
each SATA chip.
Promise and Silicon Image are the current candidates for this.
2005-04-08 09:37:47 +00:00
Søren Schmidt
0e1eb6828c Add support for controllers that doesn't have the usual taskfile
layout.  No functional changes.
2005-04-06 10:22:56 +00:00
Søren Schmidt
5a5b148dd8 Change the ata_* methods to use a channel device instead of a
controller device. This helps when there is no controller parent
to a channel (PPC port).
2005-03-31 15:05:40 +00:00
Søren Schmidt
8ca4df3299 This is the much rumoured ATA mkIII update that I've been working on.
o       ATA is now fully newbus'd and split into modules.
        This means that on a modern system you just load "atapci and ata"
        to get the base support, and then one or more of the device
        subdrivers "atadisk atapicd atapifd atapist ataraid".
        All can be loaded/unloaded anytime, but for obvious reasons you
        dont want to unload atadisk when you have mounted filesystems.

o       The device identify part of the probe has been rewritten to fix
        the problems with odd devices the old had, and to try to remove
        so of the long delays some HW could provoke. Also probing is done
	without the need for interrupts, making earlier probing possible.

o       SATA devices can be hot inserted/removed and devices will be created/
        removed in /dev accordingly.
	NOTE: only supported on controllers that has this feature:
	Promise and Silicon Image for now.
	On other controllers the usual atacontrol detach/attach dance is
	still needed.

o	Support for "atomic" composite ATA requests used for RAID.

o       ATA RAID support has been rewritten and and now supports these
        metadata formats:
                 "Adaptec HostRAID"
                 "Highpoint V2 RocketRAID"
                 "Highpoint V3 RocketRAID"
                 "Intel MatrixRAID"
                 "Integrated Technology Express"
                 "LSILogic V2 MegaRAID"
                 "LSILogic V3 MegaRAID"
                 "Promise FastTrak"
                 "Silicon Image Medley"
		 "FreeBSD PseudoRAID"

o       Update the ioctl API to match new RAID levels etc.

o       Update atacontrol to know about the new RAID levels etc
        NOTE: you need to recompile atacontrol with the new sys/ata.h,
        make world will take care of that.
	NOTE2: that rebuild is done differently from the old system as
	the rebuild is now done piggybacked on read requests to the
	array, so atacontrol simply starts a background "dd" to rebuild
	the array.

o       The reinit code has been worked over to be much more robust.

o       The timeout code has been overhauled for races.

o	Support of new chipsets.

o       Lots of fixes for bugs found while doing the modulerization and
        reviewing the old code.

Missing or changed features from current ATA:

o       atapi-cd no longer has support for ATAPI changers. Todays its
        much cheaper and alot faster to copy those CD images to disk
        and serve them from there. Besides they dont seem to be made
        anymore, maybe for that exact reason.

o       ATA RAID can only read metadata from all the above metadata formats,
	not write all of them (Promise and Highpoint V2 so far). This means
	that arrays can be picked up from the BIOS, but they cannot be
	created from FreeBSD. There is more to it than just the missing
	write metadata support, those formats are not unique to a given
	controller like Promise and Highpoint formats, instead they exist
	for several types, and even worse, some controllers can have
	different formats and its impossible to tell which one.
	The outcome is that we cannot reliably create the metadata of those
	formats and be sure the controller BIOS will understand it.
	However write support is needed to update/fail/rebuild the arrays
	properly so it sits fairly high on the TODO list.

o       So far atapicam is not supported with these changes. When/if this
	will change is up to the maintainer of atapi-cam so go there for
	questions.

HW donated by:  Webveveriet AS
HW donated by:  Frode Nordahl
HW donated by:  Yahoo!
HW donated by:  Sentex
Patience by:	Vife and my boys (and even the cats)
2005-03-30 12:03:40 +00:00
Matthew N. Dodd
5b525a3230 Avoid using tsleep() in the resume path as it may result in the
system hanging if timer interrupts aren't running yet.

This allows my Thinkpad to resume successfully with APM.

Approved by:	 sos
MFC after:	 2 weeks
2005-02-07 17:14:42 +00:00
Søren Schmidt
39c7a710c6 Return ATA register values in the request struct when ATAREQUEST returns. 2004-11-24 10:47:26 +00:00
Søren Schmidt
61efd2a8b3 Idle the channel earlier in reinit().
Cosmetic change to suspend, dont call tsleep an extra time at exit.
2004-10-19 20:13:38 +00:00
Søren Schmidt
b2d35a0408 Refine locking so it covers the "running" variable as well.
Adjust comments etc to fit the new locking system.
2004-10-13 15:16:35 +00:00
Søren Schmidt
b913aa0b7f Dont sleep with lock held. 2004-10-10 13:24:39 +00:00
Søren Schmidt
e59142714c Add SHARP to the pool of drives that doesn not need byteswapping of
the model etc fields from identify.
2004-10-07 11:43:25 +00:00
Søren Schmidt
6192895db8 Fix the PC98 lockups on boot.
The interchannel locking for PC98 needed to be updated to match the
rest of the locking in ATA.
2004-10-06 19:46:08 +00:00
Søren Schmidt
b5dee91f5f Remove the old ATA_*LOCK_CH macros that used atomic ops and use
mutexes instead.
This closes the last (known) race issues in ATA which should fix
the various hangs etc seen on heavy loaded systems.

Change from using timeout functions to using callout functions in
the timeout code. This together with above closes the race that could
happen if timeout and device interrupt occured simultaniously.

Also fix the possible recursion in ata_reinit() on very dodgy
devices that could take us down in the probe.
2004-09-26 11:48:43 +00:00
Søren Schmidt
a49513587b Ignore leading '_' in model name returned by devices.
This make "_NEC" devices appear as "NEC" which is more corrent.
The reason is tha NEC originally screwed up on the byteorder in the
model string, so now that they have realized that they prefixed the '_'
so that not every ATA driver on the planet would call them "EN C" :)
2004-09-16 09:35:01 +00:00
Søren Schmidt
6c893545ad Release the hold on ata_delayed_attach earlier so we can use tsleep
in the boot probe as well.

Suggested by:	gibbs
2004-09-09 13:25:46 +00:00
Søren Schmidt
0f7cfb8473 Introduce ata_udelay() that uses tsleep instead of DELAY if possible.
In places where we have long delays that doesn't depend on too accurate
timing, use ata_udelay() instead of DELAY() so we dont uselessly spin
the CPU if not nessesary;
2004-09-03 12:10:44 +00:00
Søren Schmidt
dc26948b0c Fix the handling of "inflight" requests when doing reinit's.
Add missing untimeout that would get lost in handling of some
error situations, and caused what looked like random timeouts
afterwards when the timeout fired.
2004-08-27 14:48:32 +00:00
Søren Schmidt
741d64783e Always pick up giant before returning from an ioctl call. 2004-08-24 15:09:05 +00:00
Søren Schmidt
5f7a48ef1e Improve (hopefully) on the workaround code for devices that doesn't
interrupt when command is done, ie some ATAPI CD drives with no
media loaded.
2004-08-16 09:32:35 +00:00
Søren Schmidt
d53fc3e41c Change the order of ata_dmainit/ata_allocate in preparation of
supporting new chipsets where this is needed.
2004-08-12 08:20:36 +00:00
Søren Schmidt
74f492f9bf Close a race in ata_reinit(). 2004-08-09 12:02:32 +00:00
John-Mark Gurney
3633dce05f make sure that ioctl's to ata use the proper cmd IOCATA...
Reviewed by:	sos
2004-08-09 06:47:53 +00:00
Søren Schmidt
7e6d75884f Try to narrow down the race window on HW that does not have ways to
poll for which channel actually pulled the irq line.
2004-08-05 21:13:41 +00:00
Søren Schmidt
601d3a344e Change the default to switch on DMA on ATAPI devices if they can
do UDMA2 (ATA33) mode and beyond.
2004-08-01 12:31:38 +00:00
Søren Schmidt
eaf8d2de9e Fix the panic (""memory modified after free") when ata_getparam() fails
and retries.

Found by:	Nate Lawson
2004-07-31 10:29:29 +00:00
Søren Schmidt
cc97de873c Attempt to handle suspend/resume better. 2004-07-12 10:50:50 +00:00
Søren Schmidt
29dc49f725 Use the right ordering of args on mtx_init(). No functional changes
since the args in question was all zero's.

Found by: Jimmy Olgeni <olgeni@FreeBSD.org>
2004-06-22 11:18:25 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Søren Schmidt
821b5752b3 Oops, backout debug code.. 2004-06-15 11:38:48 +00:00
Søren Schmidt
ebb6fc23c2 Dont set prefetch etc on VIA chips, causes problems on newer chips and
ATAPI devices.
2004-06-15 11:16:36 +00:00
Dag-Erling Smørgrav
76b108abfe Whitespace cleanup. 2004-05-20 14:49:12 +00:00
Søren Schmidt
ad452ba45c Spring cleanup of macros 2004-04-30 16:21:34 +00:00
Søren Schmidt
f2972d7eb8 Add support for the Promise command sequencer present on all modern Promise
controllers (PDC203** PDC206**).

This also adds preliminary support for the Promise SX4/SX4000 but *only*
as a "normal" Promise ATA controller (ATA RAID's are supported though
but only RAID0, RAID1 and RAID0+1).

This cuts off yet another 5-8% of the command overhead on promise controllers,
making them the fastest we have ever had support for.

Work is now continuing to add support for this in ATA RAID, to accellerate
ATA RAID quite a bit on these controllers, and especially the SX4/SX4000
series as they have quite a few tricks in there..

This commit also adds a few fixes to the SATA code needed for proper support.
2004-04-13 09:44:20 +00:00
Nate Lawson
5f96beb9e0 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
Søren Schmidt
498e55436a Add support for detaching PCI controllers.
This adds support for cardbus ATA/SATA controllers. I get roughly the
same transfer speeds as on true PCI controllers. Nice to be able to add
a couble of "real" disks to a laptop :)
2004-03-15 12:03:48 +00:00
Søren Schmidt
e7c9858a8f Remember to mtx_destroy mutexes. 2004-03-01 13:17:07 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Søren Schmidt
367d380b54 Be more robust in the probe. We dont want to get into a loop with
reinitting when we try to identify devices. If they dont interrupt
on identify we retry once. If this fails we simply ignore that device.
2004-01-30 19:16:08 +00:00