Commit Graph

55 Commits

Author SHA1 Message Date
Tejun Heo afb5a7cb84 [PATCH] sata_sil: add suspend/sleep support
Add suspend/sleep support.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 22:16:28 -04:00
Tejun Heo 3d8ec91352 [PATCH] sata_sil: separate out sil_init_controller()
Separate out controller initialization from sil_init_one() into
sil_init_controller().  This will be used by resume.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 22:16:28 -04:00
Tejun Heo b51e9e5db0 [PATCH] libata: add ap->pflags and move core dynamic flags to it
ap->flags is way too clamped.  Separate out core dynamic flags to
ap->pflags.  ATA_FLAG_DISABLED is a dynamic flag but left alone as
it's referenced by a lot of LLDs and it's gonna be removed once all
LLDs are converted to new EH.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-05 21:51:42 -04:00
Thomas Gleixner 1d6f359a2e [PATCH] irq-flags: scsi: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:53 -07:00
Tejun Heo 201ce85946 [PATCH] sata_sil: disable hotplug interrupts on two ATI IXPs
Some SATA controllers embedded in ATI IXPs seem to have broken
SATA_IRQ bit in their bmdma2 registers which is always stuck at 1.
This makes the driver believe that there has been a hotplug event and
freeze the port whenever there's an interrupt thus failing all
commands.

This patch disables SATA_IRQ for those controllers.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-26 21:02:36 -04:00
Jeff Garzik 8676ce07d3 [libata] Bump versions
Update major version for libata, and several drivers.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-26 20:41:33 -04:00
Tejun Heo d4c85325a8 [PATCH] sata_sil: update device hotplug handling, take #2
SIEN on some 3112 controllers doesn't mask SATA IRQ properly.  IRQ
stays asserted even after SIEN is masked and IRQ is acked.  Also, even
while frozen, any SATA PHY event including hardreset raises SATA IRQ.
Clearing SError seems to be the only way to deassert SATA IRQ.

This patch makes sil_host_intr() clear SError on SATA IRQs and ignore
SATA IRQs reported while frozen so that hardreset doesn't trigger
hotplug event (which ends up hardresetting again).

In such cases, the port still gets re-frozen to minimize the danger of
screaming interrupts.  This results in one nil EH repeat on
controllers with broken SIEN but other than that does no harm.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-12 09:37:21 -04:00
Tejun Heo 23fa961809 [PATCH] sata_sil: add controller unplug detection in sil_interrupt()
Short-circuit interrupt handling if BMDMA2 is reported as 0xffffffff
indicating device removal.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-12 02:10:26 -04:00
Tejun Heo e573890b00 [PATCH] sata_sil: convert to new probing mechanism and add hotplug support
Convert to new probing mechanism and add hotplug support by enabling
SATA IRQ for SError.N, marking ehi for hotplug and scheduling EH on
SATA IRQs.

Sil3112/3512/3114 family of controllers use COMRESET as TF clearing
point and can reliably wait for D2H FIS after COMRESET whether the FIS
is the first D2H FIS after POR or in response to the COMRESET.  Thus,
setting ATA_FLAG_HRST_TO_RESUME is enough for device detection after
hotplug.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 18:28:16 +09:00
Tejun Heo ccf68c3405 [PATCH] libata-hp: hook warmplug
Hook transportt->user_scan() and hostt->slave_destroy().

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 18:28:09 +09:00
Tejun Heo cbe88fbc72 [PATCH] sata_sil: new interrupt handler
The DMA complete bit of these controllers reflects ATA IRQ status
while no DMA command is in progress.  So, we can tell whether the
controller is raising an interrupt or not in deterministic manner.
This patch gives sata_sil its own interrupt handler which behaves much
better than the original one in terms of error detection and handling.
This change is also necessary for later hotplug support.

Further improvements are possible, in both 2 and 4 ports versions, we
can get all status with only one readl and using custom bmdma
operations can further cut down register accesses.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 18:27:55 +09:00
Tejun Heo 20888d8368 [PATCH] sata_sil: add new constants in preparation for new interrupt handler
sata_sil is about to get a brand new interrupt handler.  Add relevant
constants.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 18:27:53 +09:00
Alan Cox a6b2c5d475 [PATCH] PATCH: libata. Add ->data_xfer method
We need to pass the device in order to do per device checks such as
32bit I/O enables. With the changes to include dev->ap we now don't have
to add parameters however just clean them up. Also add data_xfer methods
to the existing drivers except ata_piix (which is in the other block of
patches). If you reject the piix one just add a data_xfer to it...

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-24 01:58:54 -04:00
Tejun Heo f6aae27ed0 [PATCH] sata_sil: convert to new EH
Convert sata_sil to new EH.  As these controllers have hardware
interrupt mask and are known to have screaming interrupts issues, use
hardware IRQ masking for freezing.  sil_freeze() masks interrupts for
the port and sil_thaw() unmasks them.  As ports are automatically
frozen before probing reset, there is no need to initialize interrupt
masks sil_init_onde().  Remove related code.

Other than freezing, sata_sil uses stock BMDMA EH routines.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 20:58:27 +09:00
Tejun Heo f15a1dafed [PATCH] libata: use ATA printk helpers
Use ATA printk helpers.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 20:57:56 +09:00
Jeff Garzik 10a5fd5e6b Merge branch 'master'
Conflicts:

	drivers/scsi/libata-scsi.c
	include/linux/libata.h
2006-04-11 12:51:40 -04:00
Christoph Hellwig 9227c33de8 [PATCH] move ->eh_strategy_handler to the transport class
Overriding the whole EH code is a per-transport, not per-host thing.
Move ->eh_strategy_handler to the transport class, same as
->eh_timed_out.

Downside is that scsi_host_alloc can't check for the total lack of EH
anymore, but the transition period from old EH where we needed it is
long gone already.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-10 14:15:47 -04:00
Jeff Garzik af64371ada [libata] bump versions 2006-04-02 20:41:36 -04:00
Jeff Garzik 4bced2d405 [libata] kill bogus cut-n-pasted comments in three drivers 2006-04-02 20:17:48 -04:00
Tejun Heo e1211e3fa7 [PATCH] libata: implement ata_dev_enabled and disabled()
This patch renames ata_dev_present() to ata_dev_enabled() and adds
ata_dev_disabled().  This is to discern the state where a device is
present but disabled from not-present state.  This disctinction is
necessary when configuring transfer mode because device selection
timing must not be violated even if a device fails to configure.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-01 12:33:45 -05:00
Tejun Heo 5a52913955 [PATCH] libata: make per-dev transfer mode limits per-dev
Now that each ata_device has xfer masks, per-dev limits can be made
per-dev instead of per-port.  Make per-dev limits per-dev.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24 09:28:33 -05:00
Tejun Heo 30afc84cf7 [SCSI] libata: implement minimal transport template for ->eh_timed_out
SCSI midlayer has moved hostt->eh_timed_out to transport template.  As
libata doesn't need full-blown transport support yet, implement
minimal transport for libata.  No transport class or whatsoever, just
empty transport template with ->eh_timed_out hook.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-21 13:07:05 -06:00
Tejun Heo e653a1e613 [PATCH] sata_sil: cosmetic flag/constant changes
Collect common host flags into SIL_DFL_HOST_FLAGS and add comments to
constants.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05 02:39:55 -05:00
Tejun Heo 48d4ef2a1d [PATCH] sata_sil: replace register address constants with sil_port[] entry
Kill SIL_FIFO_* and SIL_IDE2_BMDMA and replace them with proper
sil_port[] entry.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05 02:39:55 -05:00
Tejun Heo 9a5314432a [PATCH] sata_sil: use kzalloc
Use kzalloc instead of kmalloc/memset.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05 02:39:55 -05:00
Tejun Heo 81c2af3561 [PATCH] sata_sil: replace sil_3112_m15w board id with sil_3112
All 3112's have m15w.  Replace sil_3112_m15w with sil_3112 and flag
sil_3112 with SIL_FLAG_MOD15WRITE.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Carlos Pardo <Carlos.Pardo@siliconimage.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05 02:39:55 -05:00
Tejun Heo 348edc59a8 [PATCH] sata_sil: remove unneeded ATA_FLAG_SRST from 3512 port info
Now unneeded ATA_FLAG_SRST sneaked into sil_3512 port info while
merging upstream-fixes.  Kill it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-01 14:56:05 -05:00
Jeff Garzik cccc65a3b6 Merge branch 'master' 2006-02-27 11:49:05 -05:00
Tejun Heo e4e10e3e79 [PATCH] sata_sil: implement R_ERR on DMA activate FIS errata fix
Silicon Image has disclosed a new sil3114/3152 errata and workaround
which causes the controller to return R_ERR on DMA activate FIS if the
FIS is received while the next PRD is being fetched.  This patch
implements the workaround.

This errata results in lock up and doesn't trigger if m15w workaround
is in effect.  We stopped applying m15w to 3512 and 3114 in 2.6.14-rc1
which makes 3512/3114 lock up with some drives on all kernel versions
since 2.6.14-rc1 upto now (2.6.16-rc4).  This patch should fix the
regression.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-02-25 16:52:31 -05:00
Tejun Heo 0ee304d580 [PATCH] sata_sil: add board ID for 3512
3512 is slightly different from 3112 errata-wise.  Differentiate it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-02-25 16:52:31 -05:00
Tejun Heo 6a62a04d47 [PATCH] libata: rename ata_dev_id_[c_]string()
This patch renames ata_dev_id_[c_]string() to ata_id_[c_]string().
All other functions which read data from ATA ID data start with ata_id
and those two function names were getting too long.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-20 04:54:22 -05:00
Tejun Heo 49430f97dd [PATCH] libata: kill sht->max_sectors
The previous dev->max_sectors patch made sht->max_sectors meaningless.
Kill all initializations of sht->max_sectors.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12 14:36:30 -05:00
Tejun Heo b00eec1d58 [PATCH] libata: add per-device max_sectors
If a low level driver wants to control max_sectors, it had to adjust
ap->host->max_sectors and set ATA_DFLAG_LOCK_SECTORS to tell
ata_scsi_slave_config not to override the limit.  This is not only
cumbersome but also incorrect for hosts which support more than one
devices per port.

This patch adds per-device ->max_sectors.  If the field is unset
(zero), libata core layer will adjust ->max_sectors according to
default rules.  If the field is set, libata honors the setting.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12 14:36:30 -05:00
Tejun Heo 2e02671daa [PATCH] libata: use ata_dev_id_c_string()
Use ata_dev_id_c_string()

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-12 14:24:41 -05:00
Tejun Heo 531db7aa0d [PATCH] sata_sil: convert to new reset mechanism
Convert sata_sil to use new reset mechanism.  sata_sil is fairly
generic and can directly use std routine.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-10 10:30:11 -05:00
Tejun Heo 35daeb8f9b [PATCH] libata: use ata_scsi_timed_out()
Make all libata low level drivers use ata_scsi_timed_out().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-10 06:50:46 -05:00
Jeff Garzik 51e9f2ff83 [libata sata_sil] implement 'slow_down' module parameter
On occasion, a user will submit a patch that enables the "mod15write"
quirk for their device.  Enabling this quirk has the effect of clamping
all ATA commands to no more than 15 sectors.  The intended use of this
quirk is to stop the controller from generating FIS's of unusual size
("but Wesley, what about the FOUS's?"), which in turn works around
problems in a <list> of hard drives.

One side effect of this quirk is greatly decreased performance.  Users
often enable the mod15write quirk to fix various system, power, chip,
and/or driver problems.  For a few rare problematic cases, enabling this
has cured lockups or data corruption.

Rather than add bogus listings to the mod15write quirk list (I get a
patch every month doing such), we add a 'slow_down' module parameter.
This allows users to employ a performance sledgehammer in the hopes
of curing a problem.  It defaults to off (0), of course.
2006-01-27 16:50:27 -05:00
Tejun Heo 93c9338713 [BLOCK] update libata to use new blk_ordered for barriers
Reflect changes in SCSI midlayer and updated to use new
ordered request implementation

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-06 09:55:00 +01:00
Arjan van de Ven 98ac62defe [PATCH] mark several libata datastructures const
Hi,

the patch below marks several libata (and libata-driver) structures
const so that they end up in the .rodata segment and don't false-share
cachelines with things that get dirtied often.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:29:35 -05:00
Jeff Garzik 3b7d697dfb [libata] constify PCI ID table in several drivers 2005-11-10 11:04:11 -05:00
Jeff Garzik 193515d51c [libata] eliminate use of drivers/scsi/scsi.h compatibility header/defines 2005-11-07 00:59:37 -05:00
Jeff Garzik a9524a76f7 [libata] use dev_printk() throughout drivers
A few drivers were not following the standard meme of printing out
their driver name and version at module load time; this is fixed
as well.
2005-10-30 14:39:11 -05:00
Jeff Garzik 057ace5e79 libata: const-ification bombing run
Enforce access rules where appropriate.

If the compiler is smart enough, this may buy us an optimization or two
as a side effect.
2005-10-22 14:27:05 -04:00
Al Viro 9aa36e89b5 [PATCH] iomem annotations (sata_sil)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-21 02:05:31 -04:00
Jeff Garzik 374b187357 [libata] update several drivers to use pci_iomap()/pci_iounmap() 2005-08-30 05:42:52 -04:00
Jeff Garzik ea6ba10bbb [libata] __iomem annotations for various drivers 2005-08-30 05:18:18 -04:00
Jeff Garzik 70d374ea99 Merge /spare/repo/linux-2.6/ 2005-08-29 15:59:42 -04:00
Jeff Garzik af36d7f0df [libata] license change, other bits
- changes license of all code from OSL+GPL to plain ole GPL
  - except for NVIDIA, who hasn't yet responded about sata_nv
  - copyright holders were already contacted privately

- adds info in each driver about where hardware/protocol docs may be
  obtained

- where I have made major contributions, updated copyright dates
2005-08-28 20:18:39 -04:00
Jeff Garzik 953d1137fc [libata sata_sil] list documentation URL, since its public 2005-08-26 19:46:24 -04:00
Tejun Heo e4deec6304 [PATCH] sil: apply M15W quirk selectively (take 2)
As SII reports that only original 3112's are affected by M15W quirk,
This patch adds SIL_FLAG_MOD15WRITE to selectively apply M15W quirk
depending on chipsets.  As of yet, we don't know exactly which PCI IDs
are for original 3112, so M15W quirk is applied to all except for 3512
and 3124.  Once more info is avaliable, we can change some of these
sil_3112_m15w's to sil_3112.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-23 01:05:55 -04:00