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* Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-05-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: ide: fix PIO setup on resume for ATAPI devices ide: legacy PCI bus order probing fixes ide: add ide_proc_register_port() ide: add "initializing" argument to ide_register_hw() ide: cable detection fixes (take 2) ide: move IDE settings handling to ide-proc.c ide: split off ioctl handling from IDE settings (v2) ide: make /proc/ide/ optional ide: add ide_tune_dma() helper ide: rework the code for selecting the best DMA transfer mode (v3) ide: fix UDMA/MWDMA/SWDMA masks (v3)
| * ide: fix PIO setup on resume for ATAPI devicesBartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | PIO should be restored also for ATAPI devices during resume, fix it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: legacy PCI bus order probing fixesBartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE PCI host drivers should register themselves with IDE core only when IDE driver is built-in, otherwise (IDE driver is modular and thus IDE PCI host drivers are also modular) the code has no effect and just complicates the probing. Fix it by adding new config option CONFIG_IDEPCI_PCIBUS (defined only when needed and invisible to the user) and covering by #ifdef/#endif the code in question. It turned out that "ide=reverse" was silently accepted but did nothing in case when IDE driver was modular, this is fixed now. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add ide_proc_register_port()Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * create_proc_ide_interfaces() tries to add /proc entries for every probed and initialized IDE port, replace it by ide_proc_register_port() which does it only for the given port (also rename destroy_proc_ide_interface() to ide_proc_unregister_port() for consistency) * convert {create,destroy}_proc_ide_interface[s]() users to use new functions * pmac driver depended on proc_ide_create() to add /proc port entries, fix it * au1xxx-ide, swarm and cs5520 drivers depended indirectly on ide-generic driver (CONFIG_IDE_GENERIC=y) to add port /proc entries, fix them * there is now no need to add /proc entries for IDE ports in proc_ide_create() so don't do it * proc_ide_create() needs now to be called before drivers are probed - fix it, while at it make proc_ide_create() create /proc "ide" directory Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add "initializing" argument to ide_register_hw()Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | Add "initializing" argument to ide_register_hw() and use it instead of ide.c wide variable of the same name. Update all users of ide_register_hw() accordingly. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: cable detection fixes (take 2)Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tejun's recent eighty_ninty_three() fix has inspired me to do more thorough review of the cable detection code... * print user-friendly warning about limiting the maximum transfer speed to UDMA33 (and the reason behind it) when 80-wire cable is not detected, also while at it cleanup eighty_ninty_three() a bit * use eighty_ninty_three() in ide_ata66_check(), this actually fixes 3 bugs: - bit 14 (word 93 validity check) == 1 && bit 13 (80-wire cable test) == 1 were used as 80-wire cable present test for CONFIG_IDEDMA_IVB=n case (please see FIXME comment in eighty_ninty_three() for more details) - CONFIG_IDEDMA_IVB=y/n cases were interchanged - check for SATA devices was missing * remove private cable warnings from pdc_202xx{old,new} drivers now that core code provides this functionality (plus, in pdc202xx_new case the test could give false warnings for ATAPI devices because pdc202xx_new driver doesn't even support ATAPI DMA) Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: move IDE settings handling to ide-proc.cBartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * move __ide_add_setting() ide_add_setting() __ide_remove_setting() auto_remove_settings() ide_find_setting_by_name() ide_read_setting() ide_write_setting() set_xfer_rate() ide_add_generic_settings() ide_register_subdriver() ide_unregister_subdriver() from ide.c to ide-proc.c * set_{io_32bit,pio_mode,using_dma}() cannot be marked static now, fix it * rename ide_[un]register_subdriver() to ide_proc_[un]register_driver(), update device drivers to use new names * add CONFIG_IDE_PROC_FS=n versions of ide_proc_[un]register_driver() and ide_add_generic_settings() * make ide_find_setting_by_name(), ide_{read,write}_setting() and ide_{add,remove}_proc_entries() static * cover IDE settings code in device drivers with CONFIG_IDE_PROC_FS #ifdef, also while at it cover with CONFIG_IDE_PROC_FS #ifdef ide_driver_t.proc * remove bogus comment from ide.h * cover with CONFIG_IDE_PROC_FS #ifdef .proc and .settings in ide_drive_t Besides saner code this patch results in the IDE core smaller by ~2 kB (on x86-32) and IDE disk driver by ~1 kB (ditto) when CONFIG_IDE_PROC_FS=n. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: split off ioctl handling from IDE settings (v2)Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * do write permission and min/max checks in ide_procset_t functions * ide-disk.c: drive->id is always available so cleanup "multcount" setting accordingly * ide-disk.c: "address" setting was incorrectly defined as type TYPE_INTA, fix it by using type TYPE_BYTE and updating ide_drive_t->adressing field, the bug didn't trigger because this IDE setting uses custom ->set function * ide.c: add set_ksettings() for handling HDIO_SET_KEEPSETTINGS ioctl * ide.c: add set_unmaskirq() for handling HDIO_SET_UNMASKINTR ioctl * handle ioctls directly in generic_ide_ioclt() and idedisk_ioctl() instead of using IDE settings to deal with them * remove no longer needed ide_find_setting_by_ioctl() and {read,write}_ioctl fields from ide_settings_t, also remove now unused TYPE_INTA handling v2: * add missing EXPORT_SYMBOL_GPL(ide_setting_sem) needed now for ide-disk Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: make /proc/ide/ optionalBartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | All important information/features should be already available through sysfs and ioctl interfaces. Add CONFIG_IDE_PROC_FS (CONFIG_SCSI_PROC_FS rip-off) config option, disabling it makes IDE driver ~5 kB smaller (on x86-32). While at it add CONFIG_PROC_FS=n versions of proc_ide_{create,destroy}() and remove no longer needed #ifdefs. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add ide_tune_dma() helperBartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | After reworking the code responsible for selecting the best DMA transfer mode it is now possible to add generic ide_tune_dma() helper. Convert some IDE PCI host drivers to use it (the ones left need more work). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: rework the code for selecting the best DMA transfer mode (v3)Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Depends on the "ide: fix UDMA/MWDMA/SWDMA masks" patch. * add ide_hwif_t.udma_filter hook for filtering UDMA mask (use it in alim15x3, hpt366, siimage and serverworks drivers) * add ide_max_dma_mode() for finding best DMA mode for the device (loosely based on some older libata-core.c code) * convert ide_dma_speed() users to use ide_max_dma_mode() * make ide_rate_filter() take "ide_drive_t *drive" as an argument instead of "u8 mode" and teach it to how to use UDMA mask to do filtering * use ide_rate_filter() in hpt366 driver * remove no longer needed ide_dma_speed() and *_ratemask() * unexport eighty_ninty_three() v2: * rename ->filter_udma_mask to ->udma_filter [ Suggested by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] v3: * updated for scc_pata driver (fixes XFER_UDMA_6 filtering for user-space originated transfer mode change requests when 100MHz clock is used) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: fix UDMA/MWDMA/SWDMA masks (v3)Bartlomiej Zolnierkiewicz2007-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * use 0x00 instead of 0x80 to disable ->{ultra,mwdma,swdma}_mask * add udma_mask field to ide_pci_device_t and use it to initialize ->ultra_mask in aec62xx, cmd64x, pdc202xx_{new,old} and piix drivers * fix UDMA masks to match with chipset specific *_ratemask() (alim15x3, hpt366, serverworks and siimage drivers need UDMA mask filtering method - done in the next patch) v2: * piix: fix cable detection for 82801AA_1 and 82372FB_1 [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] * cmd64x: use hwif->cds->udma_mask [ Suggested by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] * aec62xx: fix newly introduced bug - check DMA status not command register [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] v3: * piix: use hwif->cds->udma_mask [ Suggested by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Fix occurrences of "the the "Michael Opdenacker2007-05-09
|/ | | | | Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Merge branch 'linux-2.6'Paul Mackerras2007-05-07
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| * ide-cs: recognize 2GB CompactFlash from TranscendFabrice Aeschbacher2007-05-05
| | | | | | | | | | | | | | | | | | | | | | Without the following patch, the kernel does not automatically detect 2GB CompactFlash cards from Transcend. Signed-off-by: Fabrice Aeschbacher <fabrice.aeschbacher@siemens.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Peter Stuge <peter@stuge.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * hpt366: don't check enablebits for HPT36xSergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | HPT36x chip don't seem to have the channel enable bits, so prevent the IDE core from checking them... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Michal Kepien <michal.kepien@poczta.onet.pl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-cris: fix ->speedproc and wrong ->swdma_maskBartlomiej Zolnierkiewicz2007-05-05
| | | | | | | | | | | | | | | | | | | | * fix ->speedproc to set the drive speed * this driver doesn't support SWDMA so use the correct ->swdma_mask * BUG() if an unsupported mode is passed to ->speedproc Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * siimage: fix wrong ->swdma_maskBartlomiej Zolnierkiewicz2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver doesn't support SWDMA so use the correct ->swdma_mask. While at it: * no need to call config_chipset_for_pio() in config_chipset_for_dma(), if DMA is not available config_chipset_for_pio() will be called by siimage_config_drive_for_dma() and if DMA is available config_siimage_chipset_for_pio() will be called by siimage_tune_chipset() * remove needless config_chipset_for_pio() wrapper * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * it821x: PIO mode setup fixesBartlomiej Zolnierkiewicz2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * limit max PIO mode to PIO4, this driver doesn't support PIO5 and attempt to setup PIO5 by it821x_tuneproc() could result in incorrect PIO timings + incorrect base clock being set for controller in the passthrough mode * move code limiting max PIO according to the pair device capabilities from config_it821x_chipset_for_pio() to it821x_tuneproc() so the check is also applied for mode change requests coming through ->tuneproc and ->speedproc interfaces * set device speed in it821x_tuneproc() * in it821x_tune_chipset() call it821x_tuneproc() also if the controller is in the smart mode (so the check for pair device max PIO is done) * rename it821x_tuneproc() to it821x_tune_pio(), then add it821x_tuneproc() wrapper which does the max PIO mode check; it worked by the pure luck previously, pio[4] and pio_want[4] arrays were used with index == 255 so random PIO timings and base clock were set for the controller in the passthrough mode, thankfully PIO timings and base clock were corrected later by config_it821x_chipset_for_pio() call (but it was not called for PIO-only devices during resume and for user requested PIO autotuning) * remove config_it821x_chipset_for_pio() call from config_chipset_for_dma() as the driver sets ->autotune to 1 and ->tuneproc does the proper job now * convert the last user of config_it821x_chipset_for_pio() to use it821x_tuneproc(drive, 255) and remove no longer needed function While at it: * fix few comments * bump driver version Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * pdc202xx_new: enable DMA for all ATAPI devicesBartlomiej Zolnierkiewicz2007-05-05
| | | | | | | | | | | | There is no reason to limit DMA to ide_cdrom type devices. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * alim15x3: PIO fallback fixBartlomiej Zolnierkiewicz2007-05-05
| | | | | | | | | | | | | | If DMA tuning fails always set the best PIO mode. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * aec62xx: fix PIO/DMA setup issuesSergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach the driver's tuneproc() method to do PIO auto-runing properly since it treated 5 instead of 255 as auto-tune request, and also passed the mode limit of PIO5 to ide_get_best_pio_mode() despite supporting up to PIO4 only. While at it, also: - remove the driver's wrong claim about supporting SWDMA modes; - stop hooking ide_dma_timeout() method as the handler clearly doesn't fit for the task... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cmd64x: use interrupt status from MRDMODE register (take 2)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | Fold the parts of the ide_dma_end() methods identical to __ide_dma_end() into a mere call to it. Start using faster versions of the ide_dma_end() and ide_dma_test_irq() methods for the PCI0646U and newer chips that have the duplicate interrupt status bits in the I/O mapped MRDMODE register, determing what methods to use at the driver load time. Do some cleanup/renaming in the "old" ide_dma_test_irq() method too. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cmd64x: procfs code fixes/cleanups (take 2)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix several issues with the driver's procfs output: - when testing if channel is enabled, the code looks at the "simplex" bits, not at the real enable bits -- add #define for the primary channel enable bit; - UltraDMA modes 0, 1, 3 for slave drive reported incorrectly due to using the master drive's clock cycle resolution bit. While at it, also perform the following cleanups: - don't print extra newline before the first controller's dump; - correct the chipset names (from CMDxxx to PCI-xxx) - don't read from the registers which aren't used for dump; - better align the table column sizes; - rework UltraDMA mode dump code; - remove PIO mode dump code that has never been finished; - remove the duplicate interrupt status (the MRDMODE register bits mirror those those in the CFR and ARTTIM23 registers) and fold the dump into single line; - correct the style of the ?: operators... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cmd64x: add/fix enablebits (take 2)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The IDE core looks at the wrong bit when checking if the secondary channel is enabled on PCI0646 -- CNTRL register bit 7 is read-ahead disable, bit 3 is the correct one. Starting with PCI0646U chip, the primary channel can also be enabled/disabled -- so, add 'enablebits' initializers to each 'ide_pci_device_t' structure, handling the original PCI0646 via adding the init_setup() method and clearing the 'reg' field there if necessary... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cmd64x: interrupt status fixes (take 2)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver's ide_dma_test_irq() method was reading the MRDMODE register even on PCI0643/6 where it was write-only -- fix this by always reading the "backward- compatible" interrupt bits, renaming dma_alt_stat to irq_stat as the interrupt status bits are not coupled to DMA. In addition, wrong interrupt bit was tested/cleared for the primary channel -- it's bit 2 in all the chip specs and the driver used bit 1... :-/ Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cmd64x: fix multiword and remove single-word DMA supportSergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the multiword DMA and drop the single-word DMA support (which nobody will miss, I think). In order to do it, a number of changes was necessary: - rename program_drive_counts() to program_cycle_times(), pass to it cycle's total/active times instead of the clock counts, and convert them into the active/recovery clocks there instead of cmd64x_tune_pio() -- this causes quantize_timing() to also move; - contrarywise, move all the code handling the address setup timing into cmd64x_tune_pio(), so that setting MWDMA mode wouldn't change address setup; - remove from the speedproc() method the bogus code pretending to set the DMA timings by twiddling bits in the BMIDE status register, handle setting MWDMA by just calling program_cycle_times(); while at it, improve the style of that whole switch statement; - stop fiddling with the DMA capable bits in the speedproc() method -- they do not enable DMA, and are properly dealt with by the dma_host_{on,off} methods; - don't set hwif->swdma_mask in the init_hwif() method anymore. In addition to those changes, do the following: - in cmd64x_tune_pio(), when writing to ARTTIM23 register preserve the interrupt status bit, eliminate local_irq_{save|restore}() around this code as there's *no* actual race with the interrupt handler, and move cmdprintk() to a more fitting place -- after ide_get_best_pio_mode() call; - make {arttim|drwtim}_regs arrays single-dimensional, indexed with drive->dn; - rename {setup|recovery}_counts[] into more fitting {setup|recovery}_values[]; - in the speedproc() method, get rid of the duplicate reads/writes from/to the UDIDETCRx registers and of the extra variable used to store the transfer mode value after filtering, use another method of determining master/slave drive, and cleanup useless parens; - beautify cmdprintk() output here and there. While at it, remove meaningless comment about the driver being used only on UltraSPARC and long non-relevant RCS tag. :-) Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sl82c105: DMA support code cleanup (take 4)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fold the now equivalent code in the ide_dma_check() method into a mere call to ide_use_dma(). Make config_for_dma() return non-zero if DMA mode has been set and call it from the ide_dma_check() method instead of ide_dma_on(). Defer writing the DMA timings to the chip registers until DMA is really turned on (and do not enable IORDY for DMA). Remove unneeded code from the init_hwif() method, improve its overall looks. Rename the dma_start(), ide_dma_check(), and ide_dma_lostirq() methods, and also use more proper hwif->dma_command, fix printk() and comment in the latter one as well. While at it, cleanup style in several places. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sl82c105: rework PIO support (take 2)Sergei Shtylyov2007-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the 'pio_speed' member of 'ide_drive_t' that was only used by this driver by storing the PIO mode timings in the 'drive_data' instead -- this allows us to greatly simplify the process of "reloading" of the chip's timing register and do it right in sl82c150_dma_off_quietly() and to get rid of two extra arguments to config_for_pio() -- which got renamed to sl82c105_tune_pio() and now returns a PIO mode selected, with ide_config_drive_speed() call moved into the tuneproc() method, now called sl82c105_tune_drive() with the code to set drive's 'io_32bit' and 'unmask' flags in its turn moved to its proper place in the init_hwif() method. Also, while at it, rename get_timing_sl82c105() into get_pio_timings() and get rid of the code in it clamping cycle counts to 32 which was both incorrect and never executed anyway... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | [POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell2007-05-07
| | | | | | | | | | | | | | | | | | | | | | for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Rename get_property to of_get_property: driversStephen Rothwell2007-05-02
|/ | | | | | | | These are all the remaining instances of get_property. Simple rename of get_property to of_get_property. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* IDE: remove rwsem use from ide-proc coreGreg Kroah-Hartman2007-04-27
| | | | | | | | | | | The subsystem rwsem is not used by the driver core at all, so the use of it in the ide-proc code of it doesn't make any sense. Perhaps a local lock might be needed, but I do not really think so. Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: linux ide <linux-ide@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ide/Kconfig: add missing range check for IDE_MAX_HWIFSBartlomiej Zolnierkiewicz2007-04-20
| | | | | | | ide_hwif_to_major[] has only 10 entries as there are 10 major numbers reserved for IDE (if somebody needs more it shouldn't be hard to fix). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* hpt366: fix kernel oops with HPT302NSergei Shtylyov2007-04-20
| | | | | | | | | | The driver crashes the kernel on HPT302N chips due to the missing initializer for 'hpt302n.settings' having been unfortunately overlooked so far. :-< Much thanks to Mike Mattie for pin-pointing the reason of crash. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/pci/delkin_cb.c: add new PCI IDMark Lord2007-04-20
| | | | | | | Add PCI ID for a newer variant of cardbus CF/IDE adapter card. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add "optical" to sysfs "media" attributeDanny Kukawka2007-04-10
| | | | | | | Add "optical" to sysfs "media" attribute as already in /proc Signed-off-by: Danny Kukawka <dkukawka@suse.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: ugly messages trying to open CD drive with no media presentStuart Hayes2007-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | I get the following error messages when trying to open a CD device (specifically, the Teac CD-ROM CD-224E) that has no media present: hda: packet command error: status=3D0x51 { DriveReady SeekComplete Error } hda: packet command error: error=3D0x54 { AbortedCommand LastFailedSense=0x05 } ide: failed opcode was: unknown This happens when a "start stop unit" command (0x1b 0 0 0 3 0 0 0 0 0) is sent to the drive to try to close the CD-ROM tray, but this drive doesn't have that capability (it's a slim portable-type CD-ROM), so it reports sense key 5 (illegal request) with asc/ascq 24/0. This is exactly how SFF8090i says it should respond. But ide-cd.c (in cdrom_decode_status() ) just sees sense key 5 and spews out an error. It then goes on to request sense data, and cdrom_log_sense() understands this error and doesn't log it. The patch, for kernel 2.6.20.4, suppresses this error message. Signed-off-by: Stuart Hayes <stuart_hayes@dell.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: correctly prevent IDE timer expiry function to run if request was ↵Suleiman Souhlal2007-04-10
| | | | | | | | | | | | | | | | | | | | | | already handled It is possible for the timer expiry function to run even though the request has already been handled: ide_timer_expiry() only checks that the handler is not NULL, but it is possible that we have handled a request (thus clearing the handler) and then started a new request (thus starting the timer again, and setting a handler). A simple way to exhibit this is to set the DMA timeout to 1 jiffy and run dd: The kernel will panic after a few minutes because ide_timer_expiry() tries to add a timer when it's already active. To fix this, we simply add a request generation count that gets incremented at every interrupt, and check in ide_timer_expiry() that we have not already handled a new interrupt before running the expiry function. Signed-off-by: Suleiman Souhlal <suleiman@google.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use correct IDE error recoverySuleiman Souhlal2007-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | IDE error recovery is using IDLE IMMEDIATE if the drive is busy or has DRQ set. This violates the ATA spec (can only send IDLE IMMEDIATE when drive is not busy) and really hoses up some drives (modern drives will not be able to recover using this error handling). The correct thing to do is issue a SRST followed by a SET FEATURES command. This is what Western Digital recommends for error recovery and what Western Digital says Windows does.  It also does not violate the ATA spec as far as I can tell. Bart: * port the patch over the current tree * undo the recalibration code removal * send SET FEATURES command after checking for good drive status * don't check whether the current request is of REQ_TYPE_ATA_{CMD,TASK} type because we need to send SET FEATURES before handling any requests * some pre-ATA4 drives require INITIALIZE DEVICE PARAMETERS command before other commands (except IDENTIFY) so send SET FEATURES only if there are no pending drive->special requests * update comments and patch description * any bugs introduced by this patch are mine and not Suleiman's :-) Signed-off-by: Suleiman Souhlal <suleiman@google.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* pdc202xx_new: Enable ATAPI DMAAlbert Lee2007-03-26
| | | | | | | | | | | | | | [ bart: the ressurection of 2 years old patch which slipped thru the cracks (thanks to Sergei Shtylyov for finding it) ] These is the patch to turn on pdc202xx_new for ATAPI DMA. When testing, it works fine without the (request_bufflen % 256) workaround as needed in libata. ide-scsi filters out (pc->request_transfer % 1024) and use PIO, so the pdc202xx ATAPI DMA problem is avoid. Both ide-cd and ide-scsi won't hit the ATAPI DMA problem on pdc202xx_new. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: cosmetic adaption of drivers/ide/Kconfig concerning SATAPatrick Ringl2007-03-26
| | | | | | | | | | Since especially Serial ATA has it's own menu point now, I guess we can change the description of the deprecated SATA driver as well, since the new libATA subsystem is not configured through a SCSI low-level driver anymore, but has it's own menu point. From: Patrick Ringl <patrick_@freenet.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix locking for manual DMA enable/disable ("hdparm -d")Bartlomiej Zolnierkiewicz2007-03-26
| | | | | | | | | | | | | | | | | Since hwif->ide_dma_check and hwif->ide_dma_on never queue any commands (ide_config_drive_speed() sets transfer mode using polling and has no error recovery) we are safe with setting hwgroup->busy for the time while DMA setting for a drive is changed (so it won't race against I/O commands in fly). I audited briefly all ->ide_dma_check/->ide_dma_on/->tuneproc/->speedproc implementations and they all look OK wrt to this change. This patch finally allowed me to close kernel bugzilla bug #8169 (once again thanks to Patrick Horn for reporting the issue & testing patches). Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: revert "ide: fix drive side 80c cable check, take 2" for nowBartlomiej Zolnierkiewicz2007-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | "ide: fix drive side 80c cable check, take 2" patch from Tejun Heo (commit fab59375b9543f84d1714f7dd00f5d11e531bd3e) fixed 80c bit test (bit13 of word93) but we also need to fix master/slave IDENTIFY order (slave device should be probed first in order to make it release PDIAG- signal) and we should also check for pre-ATA3 slave devices (which may not release PDIAG- signal). [ Unfortunately the fact that IDE driver doesn't reset devices itself helps only a bit as it seems that some BIOS-es reset ATA devices after programming the chipset, some BIOS-es can be set to not probe/configure selected devices, there may be no BIOS in case of add-on cards etc. ] Since we are quite late in the release cycle and the required changes will affect a lot of systems just revert the fix for now. [ Please also see libata commit f31f0cc2f0b7527072d94d02da332d9bb8d7d94c. ] Thanks goes out to Fernando Mitio Yamada for reporting the problem and patiently testing patches. Acked-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove CONFIG_IDEDMA_{ICS,PCI}_AUTO config optionsBartlomiej Zolnierkiewicz2007-03-17
| | | | | | | | | | | | | | | | All modern distributions have been setting these options to "y" for ages. (additionally "n" cases have been obsoleted for few years). Therefore use DMA by default and remove CONFIG_IDEDMA_{ICS,PCI}_AUTO (also remove no longer needed CONFIG_IDEDMA_AUTO). This fixes DMA support for rare configurations where CONFIG_IDEDMA_{ICS,PCI}_AUTO was set to "n" but "hdparm -d 1" was used to enable DMA support and which were forced to PIO mode by "ide: don't allow DMA to be enabled if CONFIG_IDEDMA_{ICS,PCI}_AUTO=n" patch. There is no functionality loss because "ide=nodma" kernel option is still available. Cc: Patrick Horn <phrh@yahoo.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: don't allow DMA to be enabled if CONFIG_IDEDMA_{ICS,PCI}_AUTO=nBartlomiej Zolnierkiewicz2007-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | For CONFIG_IDEDMA_{ICS,PCI}_AUTO=n and/or "ide=nodma" option the host/device are not programmed for DMA and it is also explicitly disabled by ide_set_dma() (->ide_dma_check returns "-1"). However the code responsible for manually enabling DMA ("hdparm -d 1") has a bug which results in DMA being erroneously enabled - ide_set_dma() incorrectly passes "0" return value to set_using_dma(). This may work if BIOS/firmware configured the host/device for DMA and chipset allows independent configuration of DMA/PIO modes but won't work after suspend and is generally unsafe on many chipsets (possibly including data corruption if the same registers are used for DMA/PIO timings). This patch fixes kernel bugzilla bug #8169 (piix host driver fixes for setting PIO mode exposed the problem described above). The side-effect of the fix is that some rare configuration may be forced to PIO mode when DMA mode was previously used - this is addressed by the next patch which removes CONFIG_IDEDMA_{PCI,ICS}_AUTO config option completely. Thanks goes out to Patrick Horn for reporting the issue, narrowing it down to the specific commit and testing the fix. Also thanks to Sergei Shtylyov for help in debugging the problem. Cc: Patrick Horn <phrh@yahoo.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* scc_pata: dependency fixKou Ishizaki2007-03-17
| | | | | | | | | | | | This patch fixes: * the dependency of scc_pata on BLK_DEV_IDEDMA_PCI * incorrect link to ide-core * move scc_pata from ide/ppc to ide/pci Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp> Cc: Al Viro <viro@ftp.linux.org.uk>, Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* jmicron: make ide jmicron driver play nice with libata onesTejun Heo2007-03-17
| | | | | | | | | | | | | | | | | | When libata is configured, the device is configured such that SATA and PATA ports live in separate functions with different programming interfaces. pata_jmicron and ide jmicron drivers can drive only the PATA part. This patch makes jmicron match PCI class code such that it doesn't attach itself to the SATA part preventing the proper ahci driver from attaching. This change is suggested by Bartlomiej. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: justin@jmicron.com Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: au1xxx: fix use of mixed declarations and codeRalf Baechle2007-03-17
| | | | | | | | drivers/ide/mips/au1xxx-ide.c:684: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* cmd64x: fix recovery time calculation (take 3)Sergei Shtylyov2007-03-17
| | | | | | | | | | | | | | | | | The driver wrongly takes the address setup time into account when calculating the PIO recovery time -- this leads to slight overclocking of the PIO modes 0 and 1 (so, the prayers failed to help, as usual :-). Rework the code to be calculating recovery clock count as a difference between the total cycle count and the active count (we don't need to calculate the recovery time itself since it's not specified for the PIO modes 0 to 2, and for modes 3 and 4 this formula gives enough recovery time anyway in the chip's supported PCI frequency range). This patch has been inspired by reading the datasheets and looking at what the libata driver does; it has been compile-tested only (as usual :-) but anyway, the new code gives the same or longer recovery times than the old one... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* [PATCH] BLK_DEV_IDE_CELLEB dependency fixAl Viro2007-03-14
| | | | | | | It's bool and it depends on IDE => should depend on IDE=y Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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