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2011-08-18drivers/ata/sata_dwc_460ex.c: add missing kfreeJulia Lawall
Currently, error handling code in this function calls the function sata_dwc_port_stop, but this function has essentially no effect if hsdevp has not been stored in ap, which is the case throughout this function. The only effect is to print a debugging message including ap->print_id. The code is rewritten to not call sata_dwc_port_stop, but instead to jump to a local label that prints the original error message and the print_id information. In the case where hsdevp has been already allocated (but not yet stored in ap), this value is freed as well. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @exists@ local idexpression x; statement S,S1; expression E; identifier fl; expression *ptr != NULL; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...kfree(x)...+> } when any when != true x == NULL x->fl ...> ( if (x == NULL) S1 | if (...) { ... when != x when forall ( return \(0\|<+...x...+>\|ptr\); | * return ...; ) } ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18ata: Add iMX pata supportArnaud Patard (Rtp)
Add basic support for pata on iMX. It has been tested only on imx51. SDMA support will probably be added later so this version supports only PIO. v2: - enable only when needed IORDY - use dev_get_drvdata v3: - add missing clk_put() calls - use platform_get_irq() - fix resume code to avoid disabling IORDY on resume v4: - Remove EXPERIMENTAL and switch to depends on ARCH_MXC - Use devm_kzalloc() - make clock a must-have - Use only 1 ioremap Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-18pata_via: disable ATAPI DMA on AVERATEC 3200Tejun Heo
On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA, which often leads to random kernel oops. The cause of the problem is not well understood yet and only small subset of machines using the controller seem affected. Blacklist ATAPI DMA on the machine. Signed-off-by: Tejun Heo <tj@kernel.org> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426 Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-08-18[libata] sata_sil: fix used-uninit warningJeff Garzik
Init 'serror' to silence the following warning: drivers/ata/sata_sil.c: In function ‘sil_interrupt’: drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in this function [-Wuninitialized] This is not a 'can never happen' but is nonetheless extremely unlikely. The easiest and cleanest warning fix is simply to init the var, rather than worry about marking the var uninit-ok. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-08-02Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits) ACPI: delete stale reference in kernel-parameters.txt ACPI: add missing _OSI strings ACPI: remove NID_INVAL thermal: make THERMAL_HWMON implementation fully internal thermal: split hwmon lookup to a separate function thermal: hide CONFIG_THERMAL_HWMON ACPI print OSI(Linux) warning only once ACPI: DMI workaround for Asus A8N-SLI Premium and Asus A8N-SLI DELUX ACPI / Battery: propagate sysfs error in acpi_battery_add() ACPI / Battery: avoid acpi_battery_add() use-after-free ACPI: introduce "acpi_rsdp=" parameter for kdump ACPI: constify ops structs ACPI: fix CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS ACPI: fix 80 char overflow ACPI / Battery: Resolve the race condition in the sysfs_remove_battery() ACPI / Battery: Add the check before refresh sysfs in the battery_notify() ACPI / Battery: Add the hibernation process in the battery_notify() ACPI / Battery: Rename acpi_battery_quirks2 with acpi_battery_quirks ACPI / Battery: Change 16-bit signed negative battery current into correct value ACPI / Battery: Add the power unit macro ...
2011-07-25drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possibleRakib Mullick
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: David Airlie <airlied@linux.ie> Cc: Tejun Heo <tj@kernel.org> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-23ata: PATA_ARASAN_CF depends on DMADEVICESRandy Dunlap
Fix kconfig unmet dependency warning: warning: (PATA_ARASAN_CF && VIDEO_TIMBERDALE && SND_SOC_SH4_SIU) selects DMA_ENGINE which has unmet direct dependencies (DMADEVICES) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: remove unnecessary codeGreg Dietsche
Compile tested. remove unnecessary code that matches this coccinelle pattern if (...) return ret; return ret; Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23[libata] Prevent warning during PMP error recoveryGwendal Grignou
Cleanup sff_pio_task_link when a command is cancel while the pio_task thread has been scheduled. Signed-off-by: Gwendal Grignou <gwendal@google.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ahci: RAID-mode SATA patch for Intel Panther Point DeviceIDsSeth Heasley
This patch adds an additional SATA RAID controller DeviceID for the Intel Panther Point PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23pata_it821x: Fix RAID type display, by adding missing commaJean Delvare
The missing comma causes the wrong RAID type to be displayed. Introduced by commit 963e4975c6f93c148ca809d986d412201df9af89 three years ago, odd that nobody noticed before. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23sata_dwc_460ex: fix error pathVasiliy Kulikov
Fixed hsdev memleak on sata_dwc_probe() error. As dma_dwc_exit() can be called multiple times without sata_dma_regs and irq_dma changes, it might lead to double free on sequential dma_dwc_exit() calls. So, zero these fields after free calls. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ahci: Enable SB600 64bit DMA on Asus M3AMark Nelson
Like e65cc194f7628ecaa02462f22f42fb09b50dcd49 this patch enables 64bit DMA for the AHCI SATA controller of a board that has the SB600 southbridge. In this case though we're enabling 64bit DMA for the Asus M3A motherboard. It is a new enough board that all of the BIOS releases since the initial release (0301 from 2007-10-22) work correctly with 64bit DMA enabled. Signed-off-by: Mark Nelson <mdnelson8@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23libata: report link resume failure as KERN_WARNING instead of ERRTejun Heo
Link resume failure in itself isn't an error condition and may happen regularly depending on hardware configuration. Reporting it as KERN_ERR makes the condition unnecessarily prominent (e.g. reported during boot). Use KERN_WARNING instead. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: David Shaw <dshaw@jabberwocky.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ahci: move ahci_sb600_softreset to libahci.c and rename itYuan-Hsin Chen
ahci_sb600_softreset was in ahci.c. This function is used to fix soft reset failure and renames as ahci_pmp_retry_softreset in libahci.c. Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23libata: leave port thawed after reset failureTejun Heo
libata EH intentionally left a port frozen if it failed ata_eh_reset(). The intention was avoiding continuous loop of resets when the controller or attached device is flaky and reporting spurious hotplug events. Once port enters this state, it can be recovered with manual rescan, which seemed reasonable. However, outside of my convoluted test setup, there have been very few reports justifying this choice while there have been more cases where the automatic freezing of the port after hotplug attempt of a faulty device caused confusion and led to unnecessary resets. This patch changes the behavior so that the port is thawed after reset failure. This change doesn't necessarily solve but makes it easier and more intuitive to work around hotplug related problems (ie. re-pluggin or power cycling the device) as reported in the followings. https://bugzilla.kernel.org/show_bug.cgi?id=34712 http://thread.gmane.org/gmane.linux.kernel/1123265/focus=49548 Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Reartes Guillermo <rtguille@gmail.com> Reported-by: Bruce Stenning <b.stenning@indigovision.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: sata_via: Use dev_dbgJoe Perches
Use normal debugging path for dynamic debug capability. Convert dev_printk(KERN_DEBUG to dev_dbg( Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: Add and use ata_print_version_onceJoe Perches
Use a single mechanism to show driver version. Reduces text a tiny bit too. Remove uses of static int printed_version Add and use ata_print_version(const struct device *, const char *ver) and ata_print_version_once. $ size drivers/ata/built-in.* text data bss dec hex filename 544969 73893 116584 735446 b38d6 drivers/ata/built-in.allyesconfig.ata.o 543870 73893 116592 734355 b34ad drivers/ata/built-in.allyesconfig.print_once.o 141328 14689 4220 160237 271ed drivers/ata/built-in.defconfig.ata.o 141212 14689 4220 160121 27179 drivers/ata/built-in.defconfig.print_once.o Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: Convert ata_<foo>_printk(KERN_<LEVEL> to ata_<foo>_<level>Joe Perches
Saves text by removing nearly duplicated text format strings by creating ata_<foo>_printk functions and printf extension %pV. ata defconfig size shrinks ~5% (~8KB), allyesconfig ~2.5% (~13KB) Format string duplication comes from: #define ata_link_printk(link, lv, fmt, args...) do { \ if (sata_pmp_attached((link)->ap) || (link)->ap->slave_link) \ printk("%sata%u.%02u: "fmt, lv, (link)->ap->print_id, \ (link)->pmp , ##args); \ else \ printk("%sata%u: "fmt, lv, (link)->ap->print_id , ##args); \ } while(0) Coalesce long formats. $ size drivers/ata/built-in.* text data bss dec hex filename 544969 73893 116584 735446 b38d6 drivers/ata/built-in.allyesconfig.ata.o 558429 73893 117864 750186 b726a drivers/ata/built-in.allyesconfig.dev_level.o 141328 14689 4220 160237 271ed drivers/ata/built-in.defconfig.ata.o 149567 14689 4220 168476 2921c drivers/ata/built-in.defconfig.dev_level.o Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-23ata: Convert dev_printk(KERN_<LEVEL> to dev_<level>(Joe Perches
Saves a bit of text as the call takes fewer args. Coalesce a few formats. Convert a few bare printks to pr_cont. $ size drivers/ata/built-in.o* text data bss dec hex filename 558429 73893 117864 750186 b726a drivers/ata/built-in.o.allyesconfig.new 559574 73893 117888 751355 b76fb drivers/ata/built-in.o.allyesconfig.old 149567 14689 4220 168476 2921c drivers/ata/built-in.o.defconfig.new 149851 14689 4220 168760 29338 drivers/ata/built-in.o.defconfig.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-07-16ACPI: constify ops structsVasiliy Kulikov
Structs battery_file, acpi_dock_ops, file_operations, thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops are not changed in runtime. It is safe to make them const. register_hotplug_dock_device() was altered to take const "ops" argument to respect acpi_dock_ops' const notion. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
2011-06-29ahci: change 'masking port_map' printk to KERN_WARNING levelLinus Torvalds
It's not so much an error as a warning about normal Marvell crazines. So don't use KERN_ERR that ends up spamming the console even in quiet mode, it's not _that_ critical. Explained by Jeff: "Long explanation, it's a mess: Marvell took standard AHCI, and bastardized it to include a weird mode whereby PATA devices appear inside the AHCI DMA and interrupt infrastructure you're familiar with. So, PATA devices appear via pata_marvell driver, using basic legacy IDE programming interface. But SATA devices, which might also be attached to this chip, either work in under-performing mode or simply don't work at all (e.g. newer 6 Gbps devices or port multiplier attachments, NCQ, ...) On the other hand, 'ahci' driver loads and works with the chip's attached SATA devices quite beautifully, but is completely unable to drive any attached PATA devices, due to the Marvell-specific PATA-under-AHCI interface. The "masking port_map 0x7 -> 0x3" message is the ahci driver "hiding" the PATA port(s) from itself, making sure it will only drive the SATA ports it knows how to drive." Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-24pata_marvell: Add support for 88SE91A0, 88SE91A4Paweł Drewniak
This patch enables support for Marvell IDE PATA controllers found on Asus P8P67LE motherboard. The formatting has been corrected and I also received a report from two users of this motherboard that the patch works. Signed-off-by: Paweł Drewniak <czajernia@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-06-23libata/sas: only set FROZEN flag if new EH is supportedNishanth Aravamudan
On 16.06.2011 [08:28:39 -0500], Brian King wrote: > On 06/16/2011 02:51 AM, Tejun Heo wrote: > > On Wed, Jun 15, 2011 at 04:34:17PM -0700, Nishanth Aravamudan wrote: > >>> That looks like the right thing to do. For ipr's usage of > >>> libata, we don't have the concept of a port frozen state, so this flag > >>> should really never get set. The alternate way to fix this would be to > >>> only set ATA_PFLAG_FROZEN in ata_port_alloc if ap->ops->error_handler > >>> is not NULL. > >> > >> It seemed like ipr is as you say, but I wasn't sure if it was > >> appropriate to make the change above in the common libata-scis code or > >> not. I don't want to break some other device on accident. > >> > >> Also, I tried your suggestion, but I don't think that can happen in > >> ata_port_alloc? ata_port_alloc is allocated ap itself, and it seems like > >> ap->ops typically gets set only after ata_port_alloc returns? > > > > Maybe we can test error_handler in ata_sas_port_start()? > > Good point. Since libsas is converted to the new eh now, we would need to have > this test. Commit 7b3a24c57d2eeda8dba9c205342b12689c4679f9 ("ahci: don't enable port irq before handler is registered") caused a regression for CD-ROMs attached to the IPR SATA bus on Power machines: ata_port_alloc: ENTER ata_port_probe: ata1: bus probe begin ata1.00: ata_dev_read_id: ENTER ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40) ata1.00: ata_dev_read_id: ENTER ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40) ata1.00: limiting speed to UDMA7:PIO5 ata1.00: ata_dev_read_id: ENTER ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40) ata1.00: disabled ata_port_probe: ata1: bus probe end scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured The FROZEN flag added in that commit is only cleared by the new EH code, which is not used by ipr. Clear this flag in the SAS code if we don't support new EH. Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-06-23libata: apply NOSETXFER horkage to the affected Pioneer drivesTejun Heo
regardless of firmware revision It's unlikely NOSETXFER works for a revision of drive but doesn't for another and pioneer doesn't seem to be fixing firmwares for the affected drives. Apply NOSETXFER to the affected pioneer drives regardless of firmware revision. http://article.gmane.org/gmane.linux.ide/49734 Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: fl-00@gmx.de Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-06-23drivers/ata/sata_dwc_460ex: Fix typo 'corrresponding'Justin P. Mattock
The patch below fixes a typo. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-06-07libata: fix unexpectedly frozen port after ata_eh_reset()Tejun Heo
To work around controllers which can't properly plug events while reset, ata_eh_reset() clears error states and ATA_PFLAG_EH_PENDING after reset but before RESET is marked done. As reset is the final recovery action and full verification of devices including onlineness and classfication match is done afterwards, this shouldn't lead to lost devices or missed hotplug events. Unfortunately, it forgot to thaw the port when clearing EH_PENDING, so if the condition happens after resetting an empty port, the port could be left frozen and EH will end without thawing it, making the port unresponsive to further hotplug events. Thaw if the port is frozen after clearing EH_PENDING. This problem is reported by Bruce Stenning in the following thread. http://thread.gmane.org/gmane.linux.kernel/1123265 stable: I think we should weather this patch a bit longer in -rcX before sending it to -stable. Please wait at least a month after this patch makes upstream. Thanks. -v2: Fixed spelling in the comment per Dave Howorth. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Bruce Stenning <b.stenning@indigovision.com> Cc: stable@kernel.org Cc: Dave Howorth <dhoworth@mrc-lmb.cam.ac.uk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-25Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block: (40 commits) cfq-iosched: free cic_index if cfqd allocation fails cfq-iosched: remove unused 'group_changed' in cfq_service_tree_add() cfq-iosched: reduce bit operations in cfq_choose_req() cfq-iosched: algebraic simplification in cfq_prio_to_maxrq() blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time block: move bd_set_size() above rescan_partitions() in __blkdev_get() block: call elv_bio_merged() when merged cfq-iosched: Make IO merge related stats per cpu cfq-iosched: Fix a memory leak of per cpu stats for root group backing-dev: Kill set but not used var in bdi_debug_stats_show() block: get rid of on-stack plugging debug checks blk-throttle: Make no throttling rule group processing lockless blk-cgroup: Make cgroup stat reset path blkg->lock free for dispatch stats blk-cgroup: Make 64bit per cpu stats safe on 32bit arch blk-throttle: Make dispatch stats per cpu blk-throttle: Free up a group only after one rcu grace period blk-throttle: Use helper function to add root throtl group to lists blk-throttle: Introduce a helper function to fill in device details blk-throttle: Dynamically allocate root group blk-cgroup: Allow sleeping while dynamically allocating a group ...
2011-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: Make struct pcmcia_device_id const, sound drivers edition staging: pcmcia: Convert pcmcia_device_id declarations to const pcmcia: Convert pcmcia_device_id declarations to const pcmcia: Make declaration and uses of struct pcmcia_device_id const pcmcia/sa1100: put sa11x0_pcmcia_hw_init[] to .devinit.data
2011-05-20Merge 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: libata: Power off empty ports libata-pmp: add support for Thermaltake BlackX Duet esata drive dock ATA: Don't powerdown Compaq Triflex IDE device on suspend libata: Use Maximum Write Same Length to report discard size limit drivers/ata/acard-ahci.c: fix enum warning pata_at91: SMC settings calculation bugfixes, support for t6z and IORDY libata-sff: prevent irq descriptions for dummy ports pata_cm64x: fix boot crash on parisc
2011-05-20Merge commit 'v2.6.39' into for-2.6.40/coreJens Axboe
Since for-2.6.40/core was forked off the 2.6.39 devel tree, we've had churn in the core area that makes it difficult to handle patches for eg cfq or blk-throttle. Instead of requiring that they be based in older versions with bugs that have been fixed later in the rc cycle, merge in 2.6.39 final. Also fixes up conflicts in the below files. Conflicts: drivers/block/paride/pcd.c drivers/cdrom/viocd.c drivers/ide/ide-cd.c Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-19libata: Power off empty portsKristen Carlson Accardi
Give users the option of completely powering off unoccupied SATA ports using the existing min_power link_power_management_policy option. When the use selects this option on an empty port, we will power the port off by setting DET to off. For occupied ports, behavior is unchanged. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-19libata-pmp: add support for Thermaltake BlackX Duet esata drive dockPavel Herrmann
Some errors still show up, but the dock works, both drives can be accessed at the same time The chip maker and designation is unknown - possibly jmicron JMB350? Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-19ATA: Don't powerdown Compaq Triflex IDE device on suspendMikulas Patocka
Don't powerdown Compaq Triflex IDE device on suspend This fixes APM suspend on Compaq Armada 7400. APM BIOS doesn't suspend if IDE is powered down when suspending. The Triflex controller is found only on old Compaq boards, so this patch will hopefully have no side effects. Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-19libata: Use Maximum Write Same Length to report discard size limitMartin K. Petersen
Previously we used Maximum Unmap LBA Count in the Block Limits VPD to signal the maximum number of sectors we could handle in a single Write Same command. Starting with SBC3r26 the Block Limits VPD has an explicit limit on the number of blocks in a Write Same. This means we can stop abusing a field related to the Unmap command and let our SAT use the proper value in the VPD (Maximum Write Same Length). Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com> Cc: stable@kernel.org
2011-05-19drivers/ata/acard-ahci.c: fix enum warningJeff Garzik
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-05-14Merge 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: libata: fix oops when LPM is used with PMP
2011-05-14pata_at91: SMC settings calculation bugfixes, support for t6z and IORDYIgor Plyatov
* New code correctly calculates SMC registers values, adjusts calculated to admissible ranges, enlarges cycles when required and converts values into SMC's format. * Support for TDF cycles (ATA t6z) and IORDY line added. * Eliminate need in the initial_timing structure. * Code cleanup. Signed-off-by: Igor Plyatov <plyatov@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-14libata-sff: prevent irq descriptions for dummy portsJames Bottomley
This is a cosmetic change to prevent libata-sff adding irq descriptions to dummy ports, since the information, while largely unused, is erroneous. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-14pata_cm64x: fix boot crash on pariscJames Bottomley
The old IDE cmd64x checks the status of the CNTRL register to see if the ports are enabled before probing them. pata_cmd64x doesn't do this, which causes a HPMC on parisc when it tries to poke at the secondary port because apparently the BAR isn't wired up (and a non-responding piece of memory causes a HPMC). Fix this by porting the CNTRL register port detection logic from IDE cmd64x. In addition, following converns from Alan Cox, add a check to see if a mobility electronics bridge is the immediate parent and forgo the check if it is (prevents problems on hotplug controllers). Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-14libata: fix oops when LPM is used with PMPTejun Heo
ae01b2493c (libata: Implement ATA_FLAG_NO_DIPM and apply it to mcp65) added ATA_FLAG_NO_DIPM and made ata_eh_set_lpm() check the flag. However, @ap is NULL if @link points to a PMP link and thus the unconditional @ap->flags dereference leads to the following oops. BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff813f98e1>] ata_eh_recover+0x9a1/0x1510 ... Pid: 295, comm: scsi_eh_4 Tainted: P 2.6.38.5-core2 #1 System76, Inc. Serval Professional/Serval Professional RIP: 0010:[<ffffffff813f98e1>] [<ffffffff813f98e1>] ata_eh_recover+0x9a1/0x1510 RSP: 0018:ffff880132defbf0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff880132f40000 RCX: 0000000000000000 RDX: ffff88013377c000 RSI: ffff880132f40000 RDI: 0000000000000000 RBP: ffff880132defce0 R08: ffff88013377dc58 R09: ffff880132defd98 R10: 0000000000000000 R11: 00000000ffffffff R12: 0000000000000000 R13: 0000000000000000 R14: ffff88013377c000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8800bf700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000018 CR3: 0000000001a03000 CR4: 00000000000406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process scsi_eh_4 (pid: 295, threadinfo ffff880132dee000, task ffff880133b416c0) Stack: 0000000000000000 ffff880132defcc0 0000000000000000 ffff880132f42738 ffffffff813ee8f0 ffffffff813eefe0 ffff880132defd98 ffff88013377f190 ffffffffa00b3e30 ffffffff813ef030 0000000032defc60 ffff880100000000 Call Trace: [<ffffffff81400867>] sata_pmp_error_handler+0x607/0xc30 [<ffffffffa00b273f>] ahci_error_handler+0x1f/0x70 [libahci] [<ffffffff813faade>] ata_scsi_error+0x5be/0x900 [<ffffffff813cf724>] scsi_error_handler+0x124/0x650 [<ffffffff810834b6>] kthread+0x96/0xa0 [<ffffffff8100cd64>] kernel_thread_helper+0x4/0x10 Code: 8b 95 70 ff ff ff b8 00 00 00 00 48 3b 9a 10 2e 00 00 48 0f 44 c2 48 89 85 70 ff ff ff 48 8b 8d 70 ff ff ff f6 83 69 02 00 00 01 <48> 8b 41 18 0f 85 48 01 00 00 48 85 c9 74 12 48 8b 51 08 48 83 RIP [<ffffffff813f98e1>] ata_eh_recover+0x9a1/0x1510 RSP <ffff880132defbf0> CR2: 0000000000000018 Fix it by testing @link->ap->flags instead. stable: ATA_FLAG_NO_DIPM was added during 2.6.39 cycle but was backported to 2.6.37 and 38. This is a fix for that and thus also applicable to 2.6.37 and 38. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: "Nathan A. Mourey II" <nmoureyii@ne.rr.com> LKML-Reference: <1304555277.2059.2.camel@localhost.localdomain> Cc: Connor H <cmdkhh@gmail.com> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-05-14Revert "libata: ahci_start_engine compliant to AHCI spec"Tejun Heo
This reverts commit 270dac35c26433d06a89150c51e75ca0181ca7e4. The commits causes command timeouts on AC plug/unplug. It isn't yet clear why. As the commit was for a single rather obscure controller, revert the change for now. The problem was reported and bisected by Gu Rui in bug#34692. https://bugzilla.kernel.org/show_bug.cgi?id=34692 Also, reported by Rafael and Michael in the following thread. http://thread.gmane.org/gmane.linux.kernel/1138771 Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Gu Rui <chaos.proton@gmail.com> Reported-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Michael Leun <lkml20100708@newton.leun.net> Cc: Jian Peng <jipeng2005@gmail.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-06SATA: enable non-queueable flush flagshaohua.li@intel.com
Enable non-queueable flush flag for SATA. Stable: 2.6.39 only Cc: stable@kernel.org Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-06pcmcia: Convert pcmcia_device_id declarations to constJoe Perches
Saves about 50KB of data. Old/new size of all objects: text data bss dec hex filename 563015 80096 130684 773795 bcea3 (TOTALS) 610916 32256 130632 773804 bceac (TOTALS) Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> (for drivers/net/can/softing/softing_cs.c) Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2011-04-24libata: ahci_start_engine compliant to AHCI specJian Peng
At the end of section 10.1 of AHCI spec (rev 1.3), it states Software shall not set PxCMD.ST to 1 until it is determined that a functoinal device is present on the port as determined by PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h Even though most AHCI host controller works without this check, specific controller will fail under this condition. Signed-off-by: Jian Peng <jipeng2005@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-04-24ata: pata_at91.c bugfix for initial_timing initialisationIgor Plyatov
The "struct ata_timing" must contain 10 members, but ".dmack_hold" member was forgotten for "initial_timing" initialisation. This patch fixes such a problem. Signed-off-by: Igor Plyatov <plyatov@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-04-24ata: pata_at91.c bugfix for high master clockIgor Plyatov
The AT91SAM9 microcontrollers with master clock higher then 105 MHz and PIO0, have overflow of the NCS_RD_PULSE value in the MSB. This lead to "NCS_RD_PULSE" pulse longer then "NRD_CYCLE" pulse and driver does not detect ATA device. Signed-off-by: Igor Plyatov <plyatov@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-04-24ahci: AHCI-mode SATA patch for Intel Panther Point DeviceIDsSeth Heasley
The previously submitted patch was word-wrapped. This patch adds the AHCI-mode SATA DeviceIDs for the Intel Panther Point PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-04-24ata_piix: IDE-mode SATA patch for Intel Panther Point DeviceIDsSeth Heasley
The previously submitted patch was word-wrapped. This patch adds the IDE-mode SATA DeviceIDs for the Intel Panther Point PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2011-04-24libata: Pioneer DVR-216D can't do SETXFERJeff Mahoney
Commit 4a5610a04d415ed94af75bb1159d2621d62c8328 fixed an issue with the Pioneer DVR-212D not handling SETXFER correctly. An openSUSE user reported a similar issue with his DVR-216D that the NOSETXFER horkage worked around for him as well. This patch adds the DVR-216D (1.08) to the horkage list for NOSETXFER. The issue was reported at: https://bugzilla.novell.com/show_bug.cgi?id=679143 Reported-by: Volodymyr Kyrychenko <vladimir.kirichenko@gmail.com> Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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