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2008-08-05avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>Haavard Skinnemoen
Update all avr32-specific files to use the new platform-specific header locations. Drivers shared with ARM are left alone for now. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-07-31pata_it821x: Driver updates and reworkingAlan Cox
- Add support for the RDC 1010 variant - Rework the core library to have a read_id method. This allows the hacky bits of it821x to go and prepares us for pata_hd - Switch from WARN to BUG in ata_id_string as it will reboot if you get it wrong so WARN won't be seen - Allow the issue of command 0xFC on the 821x. This is needed to query rebuild status. - Tidy up printk formatting - Do more ident rewriting on RAID volumes to handle firmware provided ident data which is rather wonky - Report the firmware revision and device layout in RAID mode - Don't try and disable raid on the 8211 or RDC - they don't have the relevant bits Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31ata_piix: subsys 106b:00a3 is apple ich8m tooTejun Heo
Subsys 106b:00a3 also is the weird apple ich8m which chokes when the latter two ports are accessed, add it. Reported by Felipe Sere. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Felipe Sere <dodofxp@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31libata-core: make sure that ata_force_tbl is freed in case of an errorElias Oltmanns
Fix a potential memory leak when ata_init() encounters an error. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Cc: Tejun Heo <tj@kernel.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31libata: update atapi disable handlingTejun Heo
Global and per-LLD ATAPI disable checks were done in the command issue path probably because it was left out during EH conversion. On affected machines, this can cause lots of warning messages. Move them to where they belong - the probing path. Reported by Chunbo Luo. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Chunbo Luo <chunbo.luo@windriver.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31pata_via: add VX800 flag; add function for fixing h/w bugsJosephChan@via.com.tw
Add flag VIA_SATA_PATA for vx800, VX800 uses the same chipset(0x0581/0x5324) as CX700, which has 1 PATA channel(Master/Slave) and 1 SATA channel(Master/Slave) Add function <via_ata_tf_load>. This is to fix the internal bug of VIA chipsets, which will reset the device register after changing the IEN bit in CTL register Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Tejun Heo <tj@kernel.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-31pata_ali: misplaced pci_dev_put()Ben Dooks
The ali_init_one() function does a search for an isa_bridge, but then fails to release it if the revision information was not correctly found. the problem comes from: isa_bridge = pci_get_device(...); if (isa_bridge && ...) { pci_dev_put(isa_bridge); } where the pci_dev_put() is never called if isa_bridge was valid but the extra checks on the chip-revision fail to match. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-27[ARM] 5179/1: Replace obsolete IRQT_* and __IRQT_* values with IRQ_TYPE_*Dmitry Baryshkov
IRQT_* and __IRQT_* were obsoleted long ago by patch [3692/1]. Remove them completely. Sed script for the reference: s/__IRQT_RISEDGE/IRQ_TYPE_EDGE_RISING/g s/__IRQT_FALEDGE/IRQ_TYPE_EDGE_FALLING/g s/__IRQT_LOWLVL/IRQ_TYPE_LEVEL_LOW/g s/__IRQT_HIGHLVL/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_RISING/IRQ_TYPE_EDGE_RISING/g s/IRQT_FALLING/IRQ_TYPE_EDGE_FALLING/g s/IRQT_BOTHEDGE/IRQ_TYPE_EDGE_BOTH/g s/IRQT_LOW/IRQ_TYPE_LEVEL_LOW/g s/IRQT_HIGH/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_PROBE/IRQ_TYPE_PROBE/g s/IRQT_NOEDGE/IRQ_TYPE_NONE/g Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-25Fix ahci driver 'flags' typeLinus Torvalds
The new type checking of the flags arguments to irqsave and friends (commit 3f307891ce0e7b0438c432af1aacd656a092ff45) pointed out this thing with a big nice warning. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-16Merge commit 'origin/master'Benjamin Herrenschmidt
Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
2008-07-15Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: AHCI: Remove an unnecessary flush from ahci_qc_issue AHCI: speed up resume [libata] Add support for VPD page b1 ata: endianness annotations in pata drivers libata-eh: update atapi_eh_request_sense() to take @dev instead of @qc [libata] sata_svw: update code comments relating to data corruption libata/ahci: enclosure management support libata: improve EH internal command timeout handling libata: use ULONG_MAX to terminate reset timeout table libata: improve EH retry delay handling libata: consistently use msecs for time durations
2008-07-15Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-buildBenjamin Herrenschmidt
Manual fixup of: arch/powerpc/Kconfig
2008-07-15Merge commit 'gcl/gcl-next'Benjamin Herrenschmidt
2008-07-14Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: (37 commits) splice: fix generic_file_splice_read() race with page invalidation ramfs: enable splice write drivers/block/pktcdvd.c: avoid useless memset cdrom: revert commit 22a9189 (cdrom: use kmalloced buffers instead of buffers on stack) scsi: sr avoids useless buffer allocation block: blk_rq_map_kern uses the bounce buffers for stack buffers block: add blk_queue_update_dma_pad DAC960: push down BKL pktcdvd: push BKL down into driver paride: push ioctl down into driver block: use get_unaligned_* helpers block: extend queue_flag bitops block: request_module(): use format string Add bvec_merge_data to handle stacked devices and ->merge_bvec() block: integrity flags can't use bit ops on unsigned short cmdfilter: extend default read filter sg: fix odd style (extra parenthesis) introduced by cmd filter patch block: add bounce support to blk_rq_map_user_iov cfq-iosched: get rid of enable_idle being unused warning allow userspace to modify scsi command filter on per device basis ...
2008-07-14AHCI: Remove an unnecessary flush from ahci_qc_issueMatthew Wilcox
In an I/O heavy workload (IOZone), ahci_qc_issue is the second-highest consumer of CPU cycles. Removing the flush gets us approximately 10% bandwidth improvement. I believe this to be because the CPU can start queueing the next request instead of waiting for the readl() to flush the writes to the device. The flush isn't necessary because we're using a 'queue' metaphor; we don't guarantee the command has got to the device, nor do we need to guarantee the command has got to the controller. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14AHCI: speed up resumeZhang Rui
During resume, sleep 1 second to wait for the HBA reset to finish is a waste of time. According to the AHCI 1.2 spec, We should poll the HOST_CTL register, and return error if the host reset is not finished within 1 second. Test results show that the HBA reset can be done quickly(in usecs). And this patch may save nearly 1 second during resume. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14[libata] Add support for VPD page b1Matthew Wilcox
SCSI VPD page b1 reports the nominal rotation speed and physical size of the device. Devices that conform to ATA-8 can return this information in words 217 and 168 of the identify data. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14ata: endianness annotations in pata driversHarvey Harrison
drivers/ata/pata_qdi.c:142:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_qdi.c:142:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_qdi.c:142:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_qdi.c:146:15: warning: cast to restricted __le32 drivers/ata/pata_winbond.c:110:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_winbond.c:110:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_winbond.c:110:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_winbond.c:114:15: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:310:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_legacy.c:310:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_legacy.c:310:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_legacy.c:314:15: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:752:11: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:756:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_legacy.c:756:9: expected unsigned int [unsigned] [addressable] [assigned] [usertype] pad drivers/ata/pata_legacy.c:756:9: got restricted __le32 [usertype] <noident> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata-eh: update atapi_eh_request_sense() to take @dev instead of @qcTejun Heo
Update atapi_eh_request_sense() to take @dev, @sense_buf and @dfl_sense_key instead of taking @qc and extracting information from it. This change is to make the function more generic and allow it to be called from other places. While at it, make cdb initialization use initializer. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14[libata] sata_svw: update code comments relating to data corruptionPavel Machek
Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata/ahci: enclosure management supportKristen Carlson Accardi
Add Enclosure Management support to libata and ahci. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata: improve EH internal command timeout handlingTejun Heo
ATA_TMOUT_INTERNAL which was 30secs were used for all internal commands which is way too long when something goes wrong. This patch implements command type based stepped timeouts. Different command types can use different timeouts and each command type can use different timeout values after timeouts. ie. the initial timeout is set to a value which should cover most of the cases but not too long so that run away cases don't delay things too much. After the first try times out, the second try can use longer timeout and if that one times out too, it can go for full 30sec timeout. IDENTIFYs use 5s - 10s - 30s timeout and all other commands use 5s - 10s timeouts. This patch significantly cuts down the needed time to handle failure cases while still allowing libata to work with nut job devices through retries. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata: use ULONG_MAX to terminate reset timeout tableTejun Heo
This doesn't introduce any functional changes. This is to make reset timeout table consistent with to-be-added command timeout tables. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata: improve EH retry delay handlingTejun Heo
EH retries were delayed by 5 seconds to ensure that resets don't occur back-to-back. However, this 5 second delay is superflous or excessive in many cases. For example, after IDENTIFY times out, there's no reason to wait five more seconds before retrying. This patch adds ehc->last_reset timestamp and record the timestamp for the last reset trial or success and uses it to space resets by ATA_EH_RESET_COOL_DOWN which is 5 secs and removes unconditional 5 sec sleeps. As this change makes inter-try waits often shorter and they're redundant in nature, this patch also removes the "retrying..." messages. While at it, convert explicit rounding up division to DIV_ROUND_UP(). This change speeds up EH in many cases w/o sacrificing robustness. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-14libata: consistently use msecs for time durationsTejun Heo
libata has been using mix of jiffies and msecs for time druations. This is getting confusing. As writing sub HZ values in jiffies is PITA and msecs_to_jiffies() can't be used as initializer, unify unit for all time durations to msecs. So, durations are in msecs and deadlines are in jiffies. ata_deadline() is added to compute deadline from a start time and duration in msecs. While at it, drop now superflous _msec suffix from arguments and rename @timeout to @deadline if it represents a fixed point in time rather than duration. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-12powerpc/pata_mpc52xx: use linux/of_platform.h instead of asmStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-11libata-acpi: don't call sleeping function from invalid contextZhang Rui
The problem is introduced by commit 664d080c41463570b95717b5ad86e79dc1be0877. acpi_evaluate_integer is a sleeping function, and it should not be called with spin_lock_irqsave. https://bugzilla.redhat.com/show_bug.cgi?id=451399 Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-11Added Targa Visionary 1000 IDE adapter to pata_sis.cKai Krakow
This enables short 40-wire detection for my laptop thus enabling UDMA/100. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-11libata-acpi: filter out DIPM enableTejun Heo
Some BIOSen enable DIPM via _GTF which causes command timeouts under certain configuration. This didn't occur on 2.6.25 because 2.6.25 defaulted to SRST, so _GTF wasn't executed during boot probe, so ahci host reset disabled DIPM and as _GTF wasn't executed after SRST, DIPM wasn't enabled. On 2.6.26, hardreset is used during probe and after probe _GTF is executed enabling DIPM and thus the failures. This patch could theoretically disable DIPM on machines which used to have it enabled on 2.6.25 but AFAIK ahci is currently the only driver which uses SATA ACPI hierarchy (_SDD) and as the host reset would have always disabled DIPM, this shouldn't happen. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-05ahci: give another shot at clearing all bits in irq_statTejun Heo
Commit ea0c62f7cf70f13a67830471b613337bd0c9a62e tried to clear all bits in irq_stat but it didn't actually achieve that as irq_stat was anded with port_map right after read. This patch makes ahci driver always use the unmasked value to clear irq_status. While at it, add explanation on the peculiarities of ahci IRQ clearing. This was spotted by Linus Torvalds. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-04sata_mv: safer logic for limit_warningsMark Lord
There is a miniscule chance that two separate host controllers might be in sata_mv at the same time and manage to decrement the static limit_warnings variable below zero. Fix the comparison to deal with it. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-04libata-sff: improve HSM violation reportingTejun Heo
Improve SFF HSM violation reporting such that each HSM violation can be distinguished using ehi_desc. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-04ahci: always clear all bits in irq_statTejun Heo
Some AHCI controllers (ICH7 was reported) set pending bit in HOST_IRQ_STAT for non-existent ports and when it's not cleared falls into IRQ storm. Always clear full irq_stat instead of only the bits that are handled. As nothing changes for recognized ports, the risk of breaking things is pretty low. Reported and verified by Philipp Thomas in the following suse bugzilla. https://bugzilla.novell.com/attachment.cgi?id=215692 Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Philipp Thomas <pth@novell.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-04sata_sil24: add DID for another adaptec flavorTejun Heo
There's another DID used for Adaptec card. Add it. Reported by Travis Read. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Travis Read <ics@dark.net.au> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-04block: add blk_queue_update_dma_padFUJITA Tomonori
This adds blk_queue_update_dma_pad to prevent LLDs from overwriting the dma pad mask wrongly (we added blk_queue_update_dma_alignment due to the same reason). This also converts libata to use blk_queue_update_dma_pad instead of blk_queue_dma_pad. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Tejun Heo <htejun@gmail.com> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-27sata_uli: hardreset is brokenTejun Heo
sata_uli can't do hardresets reliably and lock up. This went unnoticed till now as softreset was the default and hardreset was only used after softreset failed. Reported by Christian Casteyde in bz#10860. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Christian Casteyde <casteyde.christian@free.fr> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: BAST: Remove old IDE driver pcmcia ide kingston compactflash's have a new manufacturer id pcmcia: add another pata/ide ID pcmcia: add an pata/ide ID ide: increase timeout in wait_drive_not_busy() palm_bk3710: fix resource management
2008-06-20pcmcia: add another pata/ide IDKristoffer Ericson
Addition of Transcend 1GB 45x id so that it is properly detected. [bart: fix typo in ide-cs's ID spotted by Alan Cox] Signed-off-by: William Peters <w1ll14@gmail.com> Signed-off-by: Kristoffer Ericson <Kristoffer_e1@hotmail.com> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> CC: linux-ide@vger.kernel.org Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-20pcmcia: add an pata/ide IDMatt Reimer
Add an id for: product info: "M-Systems", "CF300", "" manfid: 0x000a, 0x0000 function: 4 (fixed disk) Signed-off-by: Matt Reimer <mreimer@vpop.net> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> CC: linux-ide@vger.kernel.org Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-18ahci: sis can't do PMPTejun Heo
From: Piter PUNK <piterpunk@slackware.com> SiS AHCIs say they can do PMP but can't and fail detection if SRST w/ pmp==15 is used. Turn off PMP support. tj: added patch description, adapted patch to #upstream-fixes and renamed board_ahci_sis to board_ahci_nopmp. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18ata_piix: add TECRA M4 to broken suspend listTejun Heo
TOSHIBA also used "TECRA M4" in additon to "Tecra M4", add it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18LIBATA: Add HAVE_PATA_PLATFORM to select PATA_PLATFORM driverBen Dooks
Add HAVE_PATA_PLATFORM to select the pata platform driver to ensure that we do not end up with a long 'depends on' list when other users of this driver turn up. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18sata_mv: warn on PIO with multiple DRQsMark Lord
Chip errata sometimes prevents reliable use of PIO commands which involve more than a single DRQ (data request). In normal operation, libata should not generate such PIO commands (uses DMA instead), but they could be sent in via SG_IO from userspace. A full workaround might be to break up such commands into sequences of single DRQ ones, but that's just way too complex for something that doesn't normally happen in real life. So, allow the attempt (it often works, despite the errata), but log the event for reference when somebody screams. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18sata_mv: enable async_notify for 60x1 Rev.C0 and higherMark Lord
The early chipsets cannot safely handle Async Notification (AN), but 6041/6081 chip revision "C0" (and newer) can handle it. So allow AN for "C0" and higher. This enables use of hotplug on PMP ports for the 6041/6081 PCI Rev.9 chips. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18libata: don't check whether to use DMA or not for no data commandsTejun Heo
There's no reason to check whether to use DMA or not for no data commands. Don't do it. While at it, make local variable using_pio in atapi_xlat() set iff ATAPI_PROT_PIO is going to be used and rename ata_check_atapi_dma() to atapi_check_dma() for consistency. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-18ahci: jmb361 has only one portTejun Heo
JMB361 has only one port but reports it has two causing longish probe failure on the second one. Quirk it. Reported by Gajo Petrovic in bz 10911. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Gajo Petrovic <gajo01@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-13ahci: Workaround HW bug for SB600/700 SATA controller PMP supportShane Huang
There is one bug in ATI SATA PMP of SB600 and SB700 old revision, which leads to soft reset failure. This patch can fix the bug. Signed-off-by: Shane Huang <shane.huang@amd.com> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-13ahci: workarounds for mcp65Tejun Heo
MCP65 ahci can do NCQ but doesn't set the CAP bit and rev A0 and A1 can't do MSI but have MSI capability. Implement AHCI_HFLAG_YES_NCQ and apply appropriate workarounds. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Peer Chen <pchen@nvidia.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-05libata: fix G5 SATA broken on -rc5Hugh Dickins
Fix G5 SATA irq 18: nobody cared, reported on -rc5 by Olaf Hering: fixlet to a57c1bade5a0ee5cd8b74502db9cbebb7f5780b2 libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl Signed-off-by: Hugh Dickins <hugh@veritas.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Tested-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctlAlan Cox
- Make ata_sff_altstatus private so nobody uses it by mistake - Drop the 400nS delay from it Add ata_sff_irq_status - encapsulates the IRQ check logic This function keeps the existing behaviour for altstatus using devices. I actually suspect the logic was wrong before the changes but -rc isn't the time to play with that ata_sff_sync - ensure writes hit the device Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so that we can fix the nasty delay this causes on most systems. - ata_sff_pause - 400nS delay Ensure the command hit the device and delay 400nS - ata_sff_dma_pause Ensure the I/O hit the device and enforce an HDMA1:0 transition delay. Requires altstatus register exists, BUG if not so we don't risk corruption in MWDMA modes. (UDMA the checksum will save your backside in theory) The only other complication then is devices with their own handlers. rb532 can use dma_pause but scc needs to access its own altstatus register for internal errata workarounds so directly call the drivers own altstatus function. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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