Commit Graph

256 Commits

Author SHA1 Message Date
Alexander Motin
32aa80a6bd Don't duplicate path/ccb allocation code, use existing functions. 2012-10-11 19:57:11 +00:00
Alexander Motin
aa2a1aaf90 Remove 'periph == NULL' check from bunch of periph drivers.
This condition can never be true as functions are called from single place
and the checks just pollute the code and confuse Clang Static Analyzer.
2012-10-10 18:10:11 +00:00
Andriy Gapon
d50aaa6d6d ata_da: set disk::d_ident from serial number
MFC after:	10 days
2012-10-06 21:42:07 +00:00
Alexander Motin
3631c6382f Implement media change notification for DA and CD removable media devices.
It includes three parts:
 1) Modifications to CAM to detect media media changes and report them to
disk(9) layer. For modern SATA (and potentially UAS) devices it utilizes
Asynchronous Notification mechanism to receive events from hardware.
Active polling with TEST UNIT READY commands with 3 seconds period is used
for incapable hardware. After that both CD and DA drivers work the same way,
detecting two conditions: "NOT READY: Medium not present" after medium was
detected previously, and "UNIT ATTENTION: Not ready to ready change, medium
may have changed". First one reported to disk(9) as media removal, second
as media insert/change. To reliably receive second event new
AC_UNIT_ATTENTION async added to make UAs broadcasted to all periphs by
generic error handling code in cam_periph_error().
 2) Modifications to GEOM core to handle media remove and change events.
Media removal handled by spoiling all consumers attached to the provider.
Media change event also schedules provider retaste after spoiling to probe
new media. New flag G_CF_ORPHAN was added to consumers to reflect that
consumer is in process of destruction. It allows retaste to create new
geom instance of the same class, while previous one is still dying.
 3) Modifications to some GEOM classes: DEV -- to report media change
events to devd; VFS -- to handle spoiling same as orphan to prevent
accessing replaced media. PART class already handles spoiling alike to
orphan.

Reviewed by:	silence on geom@ and scsi@
Tested by:	avg
Sponsored by:	iXsystems, Inc. / PC-BSD
MFC after:	2 months
2012-07-29 11:51:48 +00:00
Christian Brueffer
97ab227579 Add and utilize defines for the ATA device register.
PR:		169764
Submitted by:	Steven Hartland <steven.hartland@multiplay.co.uk>
Reviewed by:	mav
MFC after:	2 weeks
2012-07-12 10:09:34 +00:00
Christian Brueffer
af01090551 Apply similar same change as in r238379:
Renamed the kern.cam.ada.ada_send_ordered sysctl and tunable to
kern.cam.ada.send_ordered, more in line with the other da sysctls/tunables.

Suggested by:	kib
2012-07-11 23:22:09 +00:00
Christian Brueffer
f4bd5f21f0 - fix description of SECURITY_FREEZE_LOCK (1)
- add missing underscores to SECURITY_DISABLE_PASSWORD

PR:		169763 (1)
Submitted by:	Steven Hartland <steven.hartland@multiplay.co.uk>
Reviewed by:	mav
MFC after:	1 week
2012-07-11 08:24:30 +00:00
Alexander Motin
0191d9b367 One more major cam_periph_error() rewrite to improve error handling and
reporting. It includes:
 - removing of error messages controlled by bootverbose, replacing them
with more universal and informative debugging on CAM_DEBUG_INFO level,
that is now built into the kernel by default;
 - more close following to the arguments submitted by caller, such as
SF_PRINT_ALWAYS, SF_QUIET_IR and SF_NO_PRINT; consumer knows better which
errors are usual/expected at this point and which are really informative;
 - adding two new flags SF_NO_RECOVERY and SF_NO_RETRY to allow caller
specify how much assistance it needs at this point; previously consumers
controlled that by not calling cam_periph_error() at all, but that made
behavior inconsistent and debugging complicated;
 - tuning debug messages and taken actions order to make debugging output
more readable and cause-effect relationships visible;
 - making camperiphdone() (common device recovery completion handler) to
also use cam_periph_error() in most cases, instead of own dumb code;
 - removing manual sense fetching code from cam_periph_error(); I was told
by number of people that it is SIM obligation to fetch sense data, so this
code is useless and only significantly complicates recovery logic;
 - making ada, da and pass driver to use cam_periph_error() with new limited
recovery options to handle error recovery and debugging in common way;
as one of results, CAM_REQUEUE_REQ and other retrying statuses are now
working fine with pass driver, that caused many problems before.
 - reverting r186891 by raj@ to avoid burning few seconds in tight DELAY()
loops on device probe, while device simply loads media; I think that problem
may already be fixed in other way, and even if it is not, solution must be
different.

Sponsored by:	iXsystems, Inc.
MFC after:	2 weeks
2012-06-09 13:07:44 +00:00
Alexander Motin
bc1bf6e842 ATA/SATA controllers have no idea about protocol of the connected device
until transport will do some probe actions (at least soft reset).
Make ATA/SATA SIMs to not report bogus and confusing PROTO_ATA protocol.
Make ATA/SATA transport to fill that gap by reporting protocol to SIM with
XPT_SET_TRAN_SETTINGS and patching XPT_GET_TRAN_SETTINGS results if needed.
2012-06-06 06:52:51 +00:00
Alexander Motin
7642883f10 Use default error handler when flushing disk caches. 2012-06-05 20:39:12 +00:00
Alexander Motin
a4d953c44e Tune and add some more CAM_DEBUG() points for the probe sequences. 2012-06-05 11:48:32 +00:00
Alexander Motin
fddde2b8ef Tune and add some missing CAM_DEBUG() points for better consistency. 2012-06-05 09:45:42 +00:00
Alexander Motin
c6cba2497a Remove some dead code that I doubt will ever be implemented. 2012-06-04 09:47:19 +00:00
Alexander Motin
b9c473b2ed Rewrite enabling NCQ for SATA devices in a way more alike to SCSI TCQ.
This allows to control it with `camcontrol negotiate adaX -T (en|dis)able`
on the fly, same as for SCSI devices.

Sponsored by:	iXsystems, Inc.
2012-06-02 08:29:07 +00:00
Alexander Motin
581b2e78cf Use AC_GETDEV_CHANGED async to notify ada driver about DMA and NCQ status
change. Now that allows switching between PIO and DMA modes on the fly.
2012-06-01 09:32:37 +00:00
Alexander Motin
7dc3213da1 Allow to change number of openings (used tags) for ATA/SATA devices
via `camcontrol tags ... -N ...`.  There is no need to tune it in
usual cases, but some users want to have it for debugging purposes.

MFC after:	2 weeks
2012-05-29 14:28:46 +00:00
Alexander Motin
2e3f592b09 Plug request and references leak caused by race between invalidated
ond probe periph destruction and new incoming probe request.

This at least caused problems with SATA Port Multipliers hot-plug.

MFC after:	2 weeks
2012-05-29 11:22:40 +00:00
Alexander Motin
6aca1fbc91 Add tunable/sysctl kern.cam.pmp.hide_special, controlling whether special
PMP ports such as PMP configuration or SEMB should be exposed or hidden.
These ports were always hidden before as useless and sometimes promatic.
But with updated ses driver supporting SEMB it is no longer so straight.
Keep ports hidden by default to avoid probe request ttimeouts if SEP is
not connected to PMP's SEMB via I2C, that is very often situation.
2012-05-25 08:30:09 +00:00
Alexander Motin
3089bb2e84 MFprojects/zfsd:
- Add low-level support for SATA Enclosure Management Bridge (SEMB)
devices -- SATA equivalents of the SCSI SES/SAF-TE devices.
 - Add some utility functions for SCSI SAF-TE devices access.

Sponsored by:	iXsystems, Inc.
2012-05-24 11:07:39 +00:00
Alexander Motin
6f48792444 Alike to SCSI make adaclose() to not return error if device gone.
This fixes KASSERT panic inside GEOM if kernel built with INVARIANTS.

MFC after:	1 week
2012-04-18 08:55:26 +00:00
Alexander Motin
47bb96433c Insert ordered command every 1/4 of the current command timeout, not 1/4
of the default one.

Without this change setting kern.cam.ada.default_timeout to 1 instead of 30
allowed me to trigger several false positive command timeouts under heavy
ZFS load on a SiI3132 siis(4) controller with 5 HDDs on a port multiplier.

MFC after:	1 week
2012-02-02 19:02:15 +00:00
Alexander Motin
2121d8a585 Make CAM ATA honor old hw.ata.ata_dma and hw.ata.atapi_dma tunables.
Even having more specific hint.ata.X.mode controls, global ones are
still could be useful from some points, including compatibility.

PR:		kern/164651
MFC after:	1 week
2012-02-02 14:17:58 +00:00
Alexander Motin
157bc8dd42 Remove unneeded checks for CAM_DEV_QFRZN after cam_periph_runccb() call.
cam_periph_runccb() since the beginning checks it and releases device queue.
After r203108 it even clears CAM_DEV_QFRZN flag after that to avoid double
release, so removed code is unreachable now.

MFC after:	1 month
2012-01-02 17:02:45 +00:00
Alexander Motin
643d18260b Update list of 4K physical sector hard drives. 2011-12-22 23:50:31 +00:00
Ed Schouten
6472ac3d8a Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
2011-11-07 15:43:11 +00:00
Ed Schouten
d745c852be Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.
This means that their use is restricted to a single C file.
2011-11-07 06:44:47 +00:00
Alexander Motin
10a6c3584a Higher-priority initialization request can eat request scheduling done from
adaclose(). Add immediate_priority check into adaschedule() to restore it.

Approved by:	re (kib)
MFC after:	1 week
2011-07-30 21:42:53 +00:00
Alexander Motin
1ed6aaf99e Add control for ATA disk read-ahead, alike to the previously added write
cache control. Some controller BIOS'es tend to disable read-ahead, that
dramatically reduces read performance. Previously ata(4) always enabled
read-ahead unconditionally.

Approved by:	re (kib)
2011-07-29 20:32:27 +00:00
Alexander Motin
c36bb43ca6 Do not try to execute FLUSHCACHE on close and print extra messages for
invalidated (considered lost) ada device. Exactly same already done for
the da devices.

Approved by:	re (kib)
MFC after:	1 week
2011-07-23 22:11:40 +00:00
Alexander Motin
ee2b236b98 Fix ATAPI breakage introduced by r223443. It made SCSI commands to ATAPI
device to never complete, that caused probe process (system boot) stuck.
2011-06-23 15:10:44 +00:00
Will Andrews
14f900e2cd Plumb support for the device advanced information CCB in the ATA XPT.
This was previously done only for SCSI XPT in r223081, on which the change
in r223089 depended in order to respond to serial number requests.  As a
result of r223089, da(4) and ada(4) devices register a d_getattr for geom to
use to obtain the information.

Reported by:	ache
Reviewed by:	ken
2011-06-22 21:43:10 +00:00
Konstantin Belousov
125c410fb2 Fix a typo in adagetattr() from r223089. In particular, this restores
the ability to use ahci(4) for kernel dumps.
2011-06-18 22:26:58 +00:00
Justin T. Gibbs
416494d7c9 Plumb device physical path reporting from CAM devices, through GEOM and
DEVFS, and make it accessible via the diskinfo utility.

Extend GEOM's generic attribute query mechanism into generic disk consumers.
sys/geom/geom_disk.c:
sys/geom/geom_disk.h:
sys/cam/scsi/scsi_da.c:
sys/cam/ata/ata_da.c:
	- Allow disk providers to implement a new method which can override
	  the default BIO_GETATTR response, d_getattr(struct bio *).  This
	  function returns -1 if not handled, otherwise it returns 0 or an
	  errno to be passed to g_io_deliver().

sys/cam/scsi/scsi_da.c:
sys/cam/ata/ata_da.c:
	- Don't copy the serial number to dp->d_ident anymore, as the CAM XPT
	  is now responsible for returning this information via
	  d_getattr()->(a)dagetattr()->xpt_getatr().

sys/geom/geom_dev.c:
	- Implement a new ioctl, DIOCGPHYSPATH, which returns the GEOM
	  attribute "GEOM::physpath", if possible.  If the attribute request
	  returns a zero-length string, ENOENT is returned.

usr.sbin/diskinfo/diskinfo.c:
	- If the DIOCGPHYSPATH ioctl is successful, report physical path
	  data when diskinfo is executed with the '-v' option.

Submitted by:	will
Reviewed by:	gibbs
Sponsored by:	Spectra Logic Corporation

Add generic attribute change notification support to GEOM.

sys/sys/geom/geom.h:
	Add a new attrchanged method field to both g_class
	and g_geom.

sys/sys/geom/geom.h:
sys/geom/geom_event.c:
	- Provide the g_attr_changed() function that providers
	  can use to advertise attribute changes.
	- Perform delivery of attribute change notifications
	  from a thread context via the standard GEOM event
	  mechanism.

sys/geom/geom_subr.c:
	Inherit the attrchanged method from class to geom (class instance).

sys/geom/geom_disk.c:
	Provide disk_attr_changed() to provide g_attr_changed() access
	to consumers of the disk API.

sys/cam/scsi/scsi_pass.c:
sys/cam/scsi/scsi_da.c:
sys/geom/geom_dev.c:
sys/geom/geom_disk.c:
	Use attribute changed events to track updates to physical path
	information.

sys/cam/scsi/scsi_da.c:
	Add AC_ADVINFO_CHANGED to the registered asynchronous CAM
	events for this driver.  When this event occurs, and
	the updated buffer type references our physical path
	attribute, emit a GEOM attribute changed event via the
	disk_attr_changed() API.

sys/cam/scsi/scsi_pass.c:
	Add AC_ADVINFO_CHANGED to the registered asynchronous CAM
	events for this driver.  When this event occurs, update
	the physical patch devfs alias for this pass instance.

Submitted by:	gibbs
Sponsored by:	Spectra Logic Corporation
2011-06-14 17:10:32 +00:00
Alexander Motin
8e6cab54e8 Do not report CFA devices as ATAPI, even though IDENTIFY data look alike. 2011-06-12 18:52:39 +00:00
Alexander Motin
1524677adf Increase maximum supported number of ranges per TRIM command from 256 to 512
to use full potential of Intel X25-M SSDs. On synthetic test with 32K ranges
it gives about 20% speedup, which probably costs more then 2K of RAM.
2011-06-03 07:25:36 +00:00
Alexander Motin
37ddbd16a5 When possible, join ranges of subsequest BIO_DELETE requests to handle more
(up to 2048 instead of 256 or even 64) of them with single TRIM request.

OCZ Vertex2/Vertex3 SSDs can handle no more then 64 ranges per TRIM request.
Due to lack of BIO_DELETE clustering now, it means that we could delete no
more then 2MB per request (on FS with 32K block) with limited request rate.
This change increases delete rate on Vertex2 from 250MB/s to 950MB/s.
2011-06-02 20:56:42 +00:00
Alexander Motin
d3a460d36c Add quirks to hint 4K physical sector (Advanced Format) for ATA disks not
reporting it properly (none? of known disks now).

Hitachi and WDC AF disks seem could be identified more or less formally.
For Seagate and Samsung enumerate some found models/series.
For other disks it can be forced with kern.cam.ada.X.quirks=1 tunable.
2011-05-31 09:22:52 +00:00
Alexander Motin
0d307e0905 - Add shim to simplify migration to the CAM-based ATA. For each new adaX
device in /dev/ create symbolic link with adY name, trying to mimic old ATA
numbering. Imitation is not complete, but should be enough in most cases to
mount file systems without touching /etc/fstab.
 - To know what behavior to mimic, restore ATA_STATIC_ID option in cases
where it was present before.
 - Add some more details to UPDATING.
2011-04-26 17:01:49 +00:00
Alexander Motin
cf2b9a5f0f Add basic support for DMA-capable ATA disks on DMA-incapable controller.
This is really rare situation these days, but still may happen in embedded.
2011-04-20 13:27:50 +00:00
Alexander Motin
cfba3bd7a0 Remove some used variables.
Found with:	Clang Static Analyzer
2011-04-18 13:59:56 +00:00
Alexander Motin
c3d0d168ae Make ada(4) driver put ATA disks into sleep state on suspend.
Submitted by:	jkim (original version)
2011-04-15 07:07:29 +00:00
Alexander Motin
b8b6b5d37a Make CAM report devices with ATA/SATA transport to devstat(9) as IDE. 2011-04-14 21:25:32 +00:00
Alexander Motin
781338b6fd Fix typo in write_cache tunable name and move TUNABLE_INT_FETCH() out of
the SIM lock to fix WITNESS warning.

Reported by:	jh
2011-04-14 09:11:50 +00:00
Alexander Motin
276b083449 Properly log few more ATA commands used by the kernel. 2011-04-14 08:17:45 +00:00
Alexander Motin
8d169381e4 Improve SATA Asynchronous Notification feature support in CAM:
- make SATA SIMs announce capabilities to handle SDB with Notification bit;
 - make PMP driver honor this SIMs capability;
 - make SATA XPT to negotiate and enable this feature for ATAPI devices.

This feature allows supporting SATA ATAPI devices to inform system about
some events happened, that may require attention. In my case this allows
LG GH22LS50 SATA DVR-RW drive to report tray open/close events. Events
reported to CAM in form of AC_SCSI_AEN async. Further they could be used
as a hints for checking device status and reporting media change to upper
layers, for example, via spoiling mechanism of GEOM.
2011-04-13 16:20:54 +00:00
Alexander Motin
e3a6d3a4bf - Add kern.cam.ada.X.write_cache tunables/sysctls to control write caching
on per-device basis.
- While adding support for per-device sysctls, merge from graid branch
support for ADA_TEST_FAILURE kernel option, which opens few more sysctl,
allowing to simulate read and write errors for testing purposes.
2011-04-08 14:42:29 +00:00
Alexander Motin
f513d14ca4 Make ada(4) driver to control device write cache, same as ata(4) does.
Add kern.cam.ada.write_cache sysctl/tunable to control it alike hw.ata.wc.
2011-04-07 08:17:53 +00:00
Nathan Whitehorn
65cb6238bd Add the disk ident and a human-meaningful description (here, the disk model
string) to the geom_disk config XML so that they are easily accessible from
userland.

MFC after:	1 week
2011-02-26 14:58:54 +00:00
Alexander Motin
025e2c1221 In addition to r217444 ignore also ATA status errors on DMA Auto-Activation
enabling request. Some HP disks reported to return ABORT error there while
declaring support for this feature.
2011-01-26 06:57:48 +00:00
Alexander Motin
958e4a696f Make device initialization sequence shorter when possible. Do not enable/
disable already enabled/disabled SATA features.
2011-01-26 06:37:51 +00:00
Alexander Motin
26bdaeddd8 Some old WD SATA disks report supported and enabled device-initiated
interface power management, but return ABORT error on attempt to disable
it. Make CAM SATA probe sequence ignore this error, as it is not fatal.
2011-01-15 09:43:25 +00:00
Alexander Motin
c2b82f3e61 If HBA doesn't report user-enabled SATA capabilies (like ATA_CAM wrapper) -
handle all of them as disabled. This was original cause of the problem,
workarounded by r215453.

MFC after:	1 week
2010-11-18 13:38:33 +00:00
Rebecca Cran
fd104c151b Mostly revert r203420, and add similar functionality into ada(4) since the
existing code caused problems with some SCSI controllers.

A new sysctl kern.cam.ada.spindown_shutdown has been added that controls
whether or not to spin-down disks when shutting down.
Spinning down the disks unloads/parks the heads - this is
much better than removing power when the disk is still
spinning because otherwise an Emergency Unload occurs which may cause damage
to the actuator.

PR:	kern/140752
Submitted by:   olli
Reviewed by:	arundel
Discussed with: mav
MFC after:	2 weeks
2010-10-24 16:31:57 +00:00
Justin T. Gibbs
f03f7a0ca3 Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic.
Add the BIO_ORDERED flag for struct bio and update bio clients to use it.

The barrier semantics of bioq_insert_tail() were broken in two ways:

 o In bioq_disksort(), an added bio could be inserted at the head of
   the queue, even when a barrier was present, if the sort key for
   the new entry was less than that of the last queued barrier bio.

 o The last_offset used to generate the sort key for newly queued bios
   did not stay at the position of the barrier until either the
   barrier was de-queued, or a new barrier (which updates last_offset)
   was queued.  When a barrier is in effect, we know that the disk
   will pass through the barrier position just before the
   "blocked bios" are released, so using the barrier's offset for
   last_offset is the optimal choice.

sys/geom/sched/subr_disk.c:
sys/kern/subr_disk.c:
	o Update last_offset in bioq_insert_tail().

	o Only update last_offset in bioq_remove() if the removed bio is
	  at the head of the queue (typically due to a call via
	  bioq_takefirst()) and no barrier is active.

	o In bioq_disksort(), if we have a barrier (insert_point is non-NULL),
	  set prev to the barrier and cur to it's next element.  Now that
	  last_offset is kept at the barrier position, this change isn't
	  strictly necessary, but since we have to take a decision branch
	  anyway, it does avoid one, no-op, loop iteration in the while
	  loop that immediately follows.

	o In bioq_disksort(), bypass the normal sort for bios with the
	  BIO_ORDERED attribute and instead insert them into the queue
	  with bioq_insert_tail().  bioq_insert_tail() not only gives
	  the desired command order during insertion, but also provides
	  barrier semantics so that commands disksorted in the future
	  cannot pass the just enqueued transaction.

sys/sys/bio.h:
	Add BIO_ORDERED as bit 4 of the bio_flags field in struct bio.

sys/cam/ata/ata_da.c:
sys/cam/scsi/scsi_da.c
	Use an ordered command for SCSI/ATA-NCQ commands issued in
	response to bios with the BIO_ORDERED flag set.

sys/cam/scsi/scsi_da.c
	Use an ordered tag when issuing a synchronize cache command.

	Wrap some lines to 80 columns.

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
sys/geom/geom_io.c
	Mark bios with the BIO_FLUSH command as BIO_ORDERED.

Sponsored by:	Spectra Logic Corporation
MFC after:	1 month
2010-09-02 19:40:28 +00:00
Alexander Motin
8edcf69406 Export PCI IDs of ATA/SATA controllers through CAM and ata(4) layers to
GEOM. This information needed for proper soft-RAID's on-disk metadata
reading and writing.
2010-07-25 15:43:52 +00:00
Alexander Motin
25a519a918 ATA device reset starts probe sequence from the beginning. If reset caused
by timeout/error of one of probe commands, process may continue infinitely.
Make CAM ATA more robust to faulty devices and false positive detections,
abort probe after two restarts on timeouts or ten on other errors.
2010-07-06 19:05:41 +00:00
Alexander Motin
f1893540ff Add allocation error hadling.
Found with:   Coverity Prevent(tm)
CID:          3897
2010-06-05 09:31:13 +00:00
Alexander Motin
81bfc0fc44 Fix double free on error.
Found with:   Coverity Prevent(tm)
CID:          4573
2010-06-05 08:36:37 +00:00
Matt Jacob
0e85f214e3 Add a new primitive, XPT_SCAN_TGT, to cover the range between scanning a
whole bus (XPT_SCAN_BUS) and a single lun on that bus (XPT_SCAN_LUN).

It's less resource comsumptive than scanning a whole bus when the
caller knows only one target has changes.

Reviewed by:	scsi@
Sponsored by:	Panasas
MFC after:	1 month
2010-05-26 22:49:42 +00:00
Marius Strobl
4461491b3e Change ad_firmware_geom_adjust() to operate on a struct disk * only and
hook it up to ada(4) also. While at it, rename *ad_firmware_geom_adjust()
to *ata_disk_firmware_geom_adjust() etc now that these are no longer
limited to ad(4).

Reviewed by:	mav
MFC after:	3 days
2010-05-20 12:46:19 +00:00
Marius Strobl
f399274395 Remove unnecessary headers which were inherited from cam_xpt.c without
reason.

Reviewed by:	mav
MFC after:	3 days
2010-05-20 12:44:06 +00:00
Alexander Motin
da6808c111 Make SATA XPT negotiate and enable some additional SATA features, such as:
- device initiated power management (some devices support only this way);
 - Automatic Partial to Slumber Transition (more power saving);
 - DMA auto-activation (expected to slightly improve performance).
More features could be added later, when hardware supports.
2010-05-02 12:07:47 +00:00
Alexander Motin
e2a751891f Report PMP absence using target 15, same as for precence (not a wildcard),
to not confuse target ID checks at SIMs.
2010-04-30 07:56:21 +00:00
Alexander Motin
2eb4a8dcae Update device identify data and serial number when device change detected.
Reprobe immediately following this should have fresh data.
2010-04-27 15:59:38 +00:00
Alexander Motin
699f853bed MFp4:
Move PI_TAG_ABLE check from ada driver to ATA XPT.
2010-04-26 12:03:55 +00:00
Alexander Motin
1254b6802f Make PUIS detection more strict. Previous implementation caused false
positives on VMWare's virtual CD-ROMs.
2010-02-26 10:42:46 +00:00
Alexander Motin
57079b1773 Virtualize transport part of periph announcement. 2010-02-22 19:17:17 +00:00
Alexander Motin
639c2d4fad On probe error, if restart requested, skip any retries and recovery.
Just restart probe from the beginning immediately.
2010-02-04 18:56:38 +00:00
Alexander Motin
4ef08dc5a5 MFp4:
Add Power Up In Stand-by feature support. Device with PUIS enabled
require explicit command to do initial spin-up. Mark that command
with CAM_HIGH_POWER flag, to allow CAM manage staggered spin-up.
2010-02-03 10:06:03 +00:00
Alexander Motin
a9b8edb194 - Use separate buffer for identify data fetching. We can't use main buffer
here if device already running, as data need to be formatted before use.
- Remove some saved_ccb variables. They are unused now.
2010-02-02 18:03:21 +00:00
Alexander Motin
4cca153030 - Give ATA/SATA SIMs info about ATAPI packet size, supported by device.
- Make ATA XPT to reject longer SCSI CDBs then supported by device, or
any SCSI CDBs, if device doesn't support ATAPI.
2010-02-02 11:09:28 +00:00
Alexander Motin
83c5d981ac MFp4: Large set of CAM inprovements.
- Unify bus reset/probe sequence. Whenever bus attached at boot or later,
CAM will automatically reset and scan it. It allows to remove duplicate
code from many drivers.
- Any bus, attached before CAM completed it's boot-time initialization,
will equally join to the process, delaying boot if needed.
- New kern.cam.boot_delay loader tunable should help controllers that
are still unable to register their buses in time (such as slow USB/
PCCard/ CardBus devices), by adding one more event to wait on boot.
- To allow synchronization between different CAM levels, concept of
requests priorities was extended. Priorities now split between several
"run levels". Device can be freezed at specified level, allowing higher
priority requests to pass. For example, no payload requests allowed,
until PMP driver enable port. ATA XPT negotiate transfer parameters,
periph driver configure caching and so on.
- Frozen requests are no more counted by request allocation scheduler.
It fixes deadlocks, when frozen low priority payload requests occupying
slots, required by higher levels to manage theit execution.
- Two last changes were holding proper ATA reinitialization and error
recovery implementation. Now it is done: SATA controllers and Port
Multipliers now implement automatic hot-plug and should correctly
recover from timeouts and bus resets.
- Improve SCSI error recovery for devices on buses without automatic sense
reporting, such as ATAPI or USB. For example, it allows CAM to wait, while
CD drive loads disk, instead of immediately return error status.
- Decapitalize diagnostic messages and make them more readable and sensible.
- Teach PMP driver to limit maximum speed on fan-out ports.
- Make boot wait for PMP scan completes, and make rescan more reliable.
- Fix pass driver, to return CCB to user level in case of error.
- Increase number of retries in cd driver, as device may return several UAs.
2010-01-28 08:41:30 +00:00
Alexander Motin
0025eb12c8 - Report SATA in legacy emulation mode still as SATA.
- Make ATA XPT able to handle such case.
2010-01-10 09:20:56 +00:00
Alexander Motin
1c80ec0a6b Add BIO_DELETE support to ada(4):
- For SSDs use TRIM feature of DATA SET MANAGEMENT command, as defined by
ACS-2 specification working draft.
- For CompactFlash use CFA ERASE command, same as ad(4) does.

With this patch, `newfs -E /dev/ada1` was able to restore write speed of
my heavily weared OCZ Vertex SSD (firmware 1.4) up to the initial level
for the most part of it's capacity. Previous 1.3 firmware, even reportiong
TRIM capabilty bit set, was not working, reporting ABORT error for every
DSM command.

I have no idea whether it is normal, but for some reason it takes 200ms
to handle any TRIM command on this drive, that was making delete extremely
slow. But TRIM command is able to accept long list of LBAs and the length of
that list seems doesn't affect it's execution time. Implemented request
clusting algorithm allowed me to rise delete rate up to reasonable numbers,
when many parallel DELETE requests running.
2009-12-28 20:08:01 +00:00
Alexander Motin
ce8332d468 Report stripe size only if physical sector size is not equal to logical. 2009-12-24 21:54:44 +00:00
Alexander Motin
7bdb664e50 MFp4;
- Cleanup kernel messages, mostly PMP.
- Took references on devices, while PMP reinitializes them, to not let them
go and distort freeze reference counting.
2009-12-07 16:23:25 +00:00
Alexander Motin
21cc85878c MFp4:
If we panicked with SIM lock held, do not try to flush caches.
Extra lock recursing will not make debugging easier.
2009-12-06 11:48:53 +00:00
Alexander Motin
066f913a94 MFp4:
Introduce ATA_CAM kernel option, turning ata(4) controller drivers into
cam(4) interface modules. When enabled, this options deprecates all ata(4)
peripheral drivers (ad, acd, ...) and interfaces and allows cam(4) drivers
(ada, cd, ...) and interfaces to be natively used instead.

As side effect of this, ata(4) mode setting code was completely rewritten
to make controller API more strict and permit above change. While doing
this, SATA revision was separated from PATA mode. It allows DMA-incapable
SATA devices to operate and makes hw.ata.atapi_dma tunable work again.

Also allow ata(4) controller drivers (except some specific or broken ones)
to handle larger data transfers. Previous constraint of 64K was artificial
and is not really required by PCI ATA BM specification or hardware.

Submitted by:	nwitehorn (powerpc part)
2009-12-06 00:10:13 +00:00
Alexander Motin
f3631e8d74 Add CAM_ATAIO_DMA ATA command flag to mark DMA protocol commands.
It is not needed for SATA controllers, but required for PATA.
2009-12-01 23:01:29 +00:00
Alexander Motin
b447e682d6 MFp4:
Improve ATA mode/SATA revision control.
2009-11-26 08:49:46 +00:00
Alexander Motin
1a6f09b826 Fix small copu-paste bug. 2009-11-25 14:24:14 +00:00
Alexander Motin
c8039fc667 MFp4:
- Extend XPT-SIM transfer settings control API. Now it allows to report to
SATA SIM number of tags supported by each device, implement ATA mode and
SATA revision negotiation for both SATA and PATA SIMs.
- Make ahci(4) and siis(4) to use submitted maximum tag number, when
scheduling requests. It allows to support NCQ on devices with lower tags
count then controller supports.
- Make PMP driver to report attached devices connection speeds.
- Implement ATA mode negotiation between user settings, device and
controller capabilities.
2009-11-24 12:47:58 +00:00
Alexander Motin
3a3e47990c Disable PortMultiplier Async Notifications for time of ports reset.
They are useless at that time, but confuse Marvell AHCI.

Add quirk for SiI57XX Port Multipliers, to hide extra port.
2009-11-16 15:18:02 +00:00
Alexander Motin
507e581190 MFp4:
Do not enable tagged queueing if controller reports 0 tags support.
2009-11-14 08:08:49 +00:00
Alexander Motin
30a4094f86 MFp4:
- Move tagged queueing control from ADA to ATA XPT. It allows to control
  device command queue length correctly. First step to support < 32 tags.
- Limit queue for non-tagged devices by 2 slots for ahci(4) and siis(4).
- Implement quirk matching for ATA devices.
- Move xpt_schedule_dev_sendq() from header to source file.
- Move delayed queue shrinking to the more expected place - element freeing.
- Remove some SCSIsms in ATA.
2009-11-11 11:10:36 +00:00
Alexander Motin
2a3510fd51 Fix protype. 2009-11-04 16:37:13 +00:00
Alexander Motin
fd2cc0bde8 PMP commands use short format. PMP write doesn't return result. 2009-11-04 16:16:50 +00:00
Alexander Motin
efa575b6be MFp4:
- Remove CAM_PERIPH_POLLED flag. It is broken by design. Polling can't be
periph flag. May be SIM, may be CCB, but now it works fine just without it.
- Remove check unused for at least five years. If we will ever have non-BIO
devices in CAM, this check is smallest of what we will need.
- If several controllers complete requests same time, call swi_sched()
only once.
2009-11-04 15:40:19 +00:00
Alexander Motin
c1bd46c2d3 MFp4:
- Add support for sector size > 512 bytes and physical sector of several
logical sectors, introduced by ATA-7 specification.
- Remove some obsoleted code.
2009-11-04 15:24:32 +00:00
Alexander Motin
8691755dff MFp4:
Improve reporting ATA Status error details.
2009-11-03 11:19:05 +00:00
Alexander Motin
f98d7a47e2 MFp4:
Fix reference counting bug, when device unreferenced before then
invalidated. To do it, do not handle validity flag as another
reference, but explicitly modify reference count each time flag is
modified.

Discovered by:	thompsa
2009-11-01 11:31:06 +00:00
Alexander Motin
1e637ba677 MFp4:
- Reduce code duplication in ATA XPT and PMP driver.
- Move PIO size setting from ada driver to ATA XPT. It is XPT business
to negotiate transfer details. ada driver is now stateless.
- Report PIO size to SIM. It is required for correct PATA SIM operation.
- Tune PMP scan timings. It workarounds some problems with SiI.
- If reset hapens during PMP initialization - restart it.
- Introduce early-initialized periph drivers, which are used during initial
scan process. Use it for xpt, probe, aprobe and pmp. It gives pmp chance
to finish scan before mountroot and numerate devices in right order.
2009-10-31 10:43:38 +00:00
Alexander Motin
65d0fb03ad MFp4:
Move Port Multiplier support code out of ATA XPT into pmp periph driver.
This is convinient, as PMP itself is a bus target and has own state.
2009-10-23 12:36:42 +00:00
Alexander Motin
bbfa4aa1a6 Replace most of priority numbers with defines. No logical changes. 2009-10-23 08:27:55 +00:00
Alexander Motin
4b997c49c0 MFp4:
Separate CAM_DEV_IDENTIFY_DATA_VALID flag from CAM_DEV_INQUIRY_DATA_VALID.
Add workaround for very old devices without support for mode setting.
Add some PATA bus scanning support.
Remove some SCSIsms.
2009-10-21 15:27:48 +00:00
Alexander Motin
46f118fe3f MFp4:
Add support for PIO-only devices.
Fix maxio values and 256 sectors transactions for 28bits commands.
Implement periodic ordered commands insertion, sames as da driver does.
Remove some SCSIsms.
2009-10-21 14:20:55 +00:00
Alexander Motin
8e7cccb3bd MFp4:
Report real max_target = 15. SIM doesn't need to know that target 15 is PMP.
It is XPT business.
2009-10-21 13:00:01 +00:00
Pawel Jakub Dawidek
9cdcd1c520 Export disk serial numbers for adaX disks.
Reviewed by:	mav
MFC after:	3 days
2009-10-09 09:29:59 +00:00
Alexander Motin
14a0f03de2 Report SATA 3.x devices. 2009-09-27 20:50:54 +00:00
Alexander Motin
7606b4450b Short ATA command format has 28bit address, not 36bit.
Rename ata_36bit_cmd() into ata_28bit_cmd(), while it didn't become legacy.

MFC after:	2 days
2009-08-30 16:31:25 +00:00
Alexander Motin
1ddbcde832 ATA_FLUSHCACHE is a 36bit format command, not 48. 2009-08-30 15:36:56 +00:00
Alexander Motin
5daa555d8d Fix copy/paste bug, that requests data read during ATA device probe sequence
for ATA_SETFEATURES/ATA_SF_SETXFER command which by definition transfers no
data. Most of controllers are irrelevant to this bug, but some nVidia's
doesn't.

Tested on:	current@
Approved by:	re (kib)
2009-08-18 09:27:17 +00:00
Alexander Motin
b2da774623 Fix copy-paste bug. Use regular non-polled mode for executing FLUSHCACHE
command on disk close.

Approved by:	re (implicitly)
2009-07-17 21:48:08 +00:00
Alexander Motin
3ccda2f312 Fix copy-paste bug, enabling SIM PMP support, when it was not really found.
Approved by:	re (implicitly)
2009-07-13 21:21:30 +00:00
Alexander Motin
f09f8e3e0b Rename ATA probe driver to "aprobe" to resolve name conflict with SCSI
and fix loading cam as module.

Approved by:	re (implicitly)
2009-07-13 06:12:21 +00:00
Scott Long
52c9ce25d8 Separate the parallel scsi knowledge out of the core of the XPT, and
modularize it so that new transports can be created.

Add a transport for SATA

Add a periph+protocol layer for ATA

Add a driver for AHCI-compliant hardware.

Add a maxio field to CAM so that drivers can advertise their max
I/O capability.  Modify various drivers so that they are insulated
from the value of MAXPHYS.

The new ATA/SATA code supports AHCI-compliant hardware, and will override
the classic ATA driver if it is loaded as a module at boot time or compiled
into the kernel.  The stack now support NCQ (tagged queueing) for increased
performance on modern SATA drives.  It also supports port multipliers.

ATA drives are accessed via 'ada' device nodes.  ATAPI drives are
accessed via 'cd' device nodes.  They can all be enumerated and manipulated
via camcontrol, just like SCSI drives.  SCSI commands are not translated to
their ATA equivalents; ATA native commands are used throughout the entire
stack, including camcontrol.  See the camcontrol manpage for further
details.  Testing this code may require that you update your fstab, and
possibly modify your BIOS to enable AHCI functionality, if available.

This code is very experimental at the moment.  The userland ABI/API has
changed, so applications will need to be recompiled.  It may change
further in the near future.  The 'ada' device name may also change as
more infrastructure is completed in this project.  The goal is to
eventually put all CAM busses and devices until newbus, allowing for
interesting topology and management options.

Few functional changes will be seen with existing SCSI/SAS/FC drivers,
though the userland ABI has still changed.  In the future, transports
specific modules for SAS and FC may appear in order to better support
the topologies and capabilities of these technologies.

The modularization of CAM and the addition of the ATA/SATA modules is
meant to break CAM out of the mold of being specific to SCSI, letting it
grow to be a framework for arbitrary transports and protocols.  It also
allows drivers to be written to support discrete hardware without
jeopardizing the stability of non-related hardware.  While only an AHCI
driver is provided now, a Silicon Image driver is also in the works.
Drivers for ICH1-4, ICH5-6, PIIX, classic IDE, and any other hardware
is possible and encouraged.  Help with new transports is also encouraged.

Submitted by:	scottl, mav
Approved by:	re
2009-07-10 08:18:08 +00:00