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* ide: HPA detect from resumeLee Trager2007-06-08
| | | | | | | | | | | | | | | | | | | Currently when system which have HPA require HPA to be detected and disabled upon resume from RAM or disk. The current IDE drivers do not do this nor does libata (obviously it since it doesn't support HPA yet). I have implemented this into the current IDE drivers and it has been tested by many others since 7/15/2006 in bug number 6840: http://bugzilla.kernel.org/show_bug.cgi?id=6840 and it has been confirmed to work fine with no problems. bart: added drv != NULL check to generic_ide_suspend() From: Lee Trager <lt73@cs.drexel.edu> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ide_use_dma()Bartlomiej Zolnierkiewicz2007-05-15
| | | | | | | | | | | ide_use_dma() duplicates a lot of ide_max_dma_mode() functionality and as all users of ide_use_dma() were converted to use ide_tune_dma() now it is possible to add missing checks to ide_tune_dma() and remove ide_use_dma() completely, so do it. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ide_dma_enable()Bartlomiej Zolnierkiewicz2007-05-15
| | | | | | | | * check ->speedproc return value in ide_tune_dma() * use ide_tune_dma() in cmd64x/cs5530/sc1200/siimage/sl82c105/scc_pata drivers * remove no longer needed ide_dma_enable() 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>
* 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>
* 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>
* ide: ide_get_best_pio_mode() returns incorrect IORDY setting (take 2)Sergei Shtylyov2007-03-03
| | | | | | | | | | | | | | | The function ide_get_best_pio_mode() fails to return the correct IORDY setting for the explicitly specified modes -- fix this along with the heading comment, and also remove the long commented out code. Also, while at it, correct the misliading comment about the PIO cycle time in <linux/ide.h> -- it actually consists of only the active and recovery periods, with only some chips also including the address setup time into equation... [ bart: sl82c105 seems to be currently the only driver affected by this fix ] Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make ide_hwif_t.ide_dma_host_on void (v2)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | | | | * since ide_hwif_t.ide_dma_host_on is called either when drive->using_dma == 1 or when return value is discarded make it void, also drop "ide_" prefix * make __ide_dma_host_on() void and drop "__" prefix v2: * while at it rename atiixp_ide_dma_host_on() to atiixp_dma_host_on() and sgiioc4_ide_dma_host_on() to sgiioc4_dma_host_on(). [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make ide_hwif_t.ide_dma_{host_off,off_quietly} void (v2)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | | | | | | * since ide_hwif_t.ide_dma_{host_off,off_quietly} always return '0' make these functions void and while at it drop "ide_" prefix * fix comment for __ide_dma_off_quietly() * make __ide_dma_{host_off,off_quietly,off}() void and drop "__" prefix v2: * while at it rename atiixp_ide_dma_host_off() to atiixp_dma_host_off(), sgiioc4_ide_dma_{host_off,off_quietly}() to sgiioc4_dma_{host_off,off_quietly}() and sl82c105_ide_dma_off_quietly() to sl82c105_dma_off_quietly() [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_set_dma() helper (v2)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | | | | * add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return -1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly) 0 when DMA needs to be enabled (== need to call ->ide_dma_on) 1 when DMA setting shouldn't be changed * fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly v2: * updated for scc_pata Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: convert ide_hwif_t.mmio into flag (v2)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | | All users of ->mmio == 1 are gone so convert ->mmio into flag. Noticed by Alan Cox. v2: * updated for scc_pata Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use PIO/MMIO operations directly where possible (v2)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | This results in smaller/faster/simpler code and allows future optimizations. Also remove no longer needed ide[_mm]_{inl,outl}() and ide_hwif_t.{INL,OUTL}. v2: * updated for scc_pata Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_use_fast_pio() helper (v3)Bartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * add ide_use_fast_pio() helper for use by host drivers * add DMA capability and hwif->autodma checks to ide_use_dma() - au1xxx-ide/it8213/it821x drivers didn't check for (id->capability & 1) [ for the IT8211/2 in SMART mode this check shouldn't be made but since in it821x_fixups() we set DMA bit explicitly: if(strstr(id->model, "Integrated Technology Express")) { /* In raid mode the ident block is slightly buggy We need to set the bits so that the IDE layer knows LBA28. LBA48 and DMA ar valid */ id->capability |= 3; /* LBA28, DMA */ we are better off using generic helper if we can ] - ide-cris driver didn't set ->autodma [ before the patch hwif->autodma was only checked in the chipset specific hwif->ide_dma_check implementations, for ide-cris it is cris_dma_check() function so there no behavior change here ] v2: * updated patch description (thanks to Alan Cox for the feedback) v3: * updated for scc_pata driver Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ide_drive_t.usageBartlomiej Zolnierkiewicz2007-02-16
| | | | | | | | | This field is no longer used by the core IDE code so fix ide-{disk,floppy} drivers to keep openers count in the driver specific objects and remove it from ide-{cd,scsi,tape} drivers (it was write-only). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove write-only ide_hwif_t.no_dsc flagBartlomiej Zolnierkiewicz2007-02-16
| | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove write-only ide_pio_data_t.blacklistedBartlomiej Zolnierkiewicz2007-02-16
| | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove clearing bmdma status from cdrom_decode_status() (rev #4)Albert Lee2007-02-16
| | | | | | | | | | | | | | patch 2/2: Remove clearing bmdma status from cdrom_decode_status() since ATA devices might need it as well. (http://lkml.org/lkml/2006/12/4/201 and http://lkml.org/lkml/2006/11/15/94) Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: "Adam W. Hawks" <awhawks@us.ibm.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: clear bmdma status in ide_intr() for ICHx controllers (revised #4)Albert Lee2007-02-16
| | | | | | | | | | | | | | | | | | patch 1/2 (revised): - Fix drive->waiting_for_dma to work with CDB-intr devices. - Do the dma status clearing in ide_intr() and add a new hwif->ide_dma_clear_irq for Intel ICHx controllers. Revised per Alan, Sergei and Bart's advice. Patch against 2.6.20-rc6. Tested ok on my ICH4 and pdc20275 adapters. Please review/apply, thanks. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: "Adam W. Hawks" <awhawks@us.ibm.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-02-07
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (23 commits) ide-acpi support warning fix ACPI support for IDE devices IDE Driver for Delkin/Lexar/etc.. cardbus CF adapter ide: it8213 IDE driver update (version 2) ide: add it8213 IDE driver tc86c001: add missing __init tag for tc86c001_ide_init() tc86c001: mark init_chipset_tc86c001() with __devinit tag tc86c001: init_hwif_tc86c001() can be static ide: add Toshiba TC86C001 IDE driver (take 2) pdc202xx_new: remove check_in_drive_lists abomination pdc202xx_new: remove useless code slc90e66: carry over fixes from piix driver piix: tuneproc() fixes/cleanups piix: fix 82371MX enablebits hpt366: HPT36x PCI clock detection fix hpt366: init code rewrite hpt366: clean up DMA timeout handling for HPT370 hpt366: merge HPT37x speedproc handlers hpt366: cache channel's MCR address hpt366: switch to using pci_get_slot ...
| * ACPI support for IDE devicesHannes Reinecke2007-02-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements ACPI integration for generic IDE devices. The ACPI spec mandates that some methods are called during suspend and resume. And consequently there most modern Laptops cannot resume properly without it. According to the spec, we should call '_GTM' (Get Timing) upon suspend to store the current IDE adapter settings. Upon resume we should call '_STM' (Set Timing) to initialize the adapter with the stored settings; afterwards '_GTF' (Get Taskfile) should be called which returns a buffer with some IDE initialisation commands. Those commands should be passed to the drive. There are two module params which control the behaviour of this patch: 'ide=noacpi' Do not call any ACPI methods (Disables any ACPI method calls) 'ide=acpigtf' Enable execution of _GTF methods upon resume. Has no effect if 'ide=noacpi' is set. 'ide=acpionboot' Enable execution of ACPI methods during boot. This might be required on some machines if 'ide=acpigtf' is selected as some machines modify the _GTF information depending on the drive identification passed down with _STM. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | PCI: add the sysfs driver name to all modulesGreg Kroah-Hartman2007-02-07
|/ | | | | | | | | | | | This adds the module name to all PCI drivers, if they are built into the kernel or not. It will show up in /sys/modules/MODULE_NAME/drivers/ It also fixes up the IDE core, which was calling __pci_register_driver() directly. Cc: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] remove blk_queue_activity_fnBoaz Harrosh2006-12-12
| | | | | | | | | | | | | | | | | | While working on bidi support at struct request level I have found that blk_queue_activity_fn is actually never used. The only user is in ide-probe.c with this code: /* enable led activity for disk drives only */ if (drive->media == ide_disk && hwif->led_act) blk_queue_activity_fn(q, hwif->led_act, drive); And led_act is never initialized anywhere. (Looking back at older kernels it was used in the PPC arch, but was removed around 2.6.18) Unless it is all for future use off course. (this patch is against linux-2.6-block.git as off 2006/12/4) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [PATCH] ide-cd: Handle strange interrupt on the Intel ESB2Alan Cox2006-12-10
| | | | | | | | | | | | | | | | The ESB2 appears to emit spurious DMA interrupts when configured for native mode and handling ATAPI devices. Stratus were able to pin this bug down and produce a patch. This is a rework which applies the fixup only to the ESB2 (for now). We can apply it to other chips later if the same problem is found. This code has been tested and confirmed to fix the problem on the tested systems. Signed-off-by: Alan Cox <alan@redhat.com> (Most of the hard work done by Stratus however) Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [PATCH] ide: Fix crash on repeated resetAlan Cox2006-10-03
| | | | | | | | | | | | | | | | | Michal Miroslaw reported a problem (bugzilla #7023) where a user initiated reset while the IDE layer was already resetting the channel caused a crash, and provided a rough fix. This is a slightly cleaner version of the fix which tracks the reset state and blocks further reset requests while a reset is in progress. Note this is not a security issue - random end users can't access the ioctl in question anyway. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Michal Miroslaw <mirq-linux@rere.qmqm.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ide: remove dma_base2 field from ide_hwif_tSergei Shtylyov2006-10-03
| | | | | | | | | | | | | Remove dma_base2 field from ide_hwif_t as it's used only in 2 drivers and without great need. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: John Keller <jpk@sgi.com> Signed-off-by: Jeremy Higdon <jeremy@sgi.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] drivers/ide/: cleanupsAdrian Bunk2006-10-03
| | | | | | | | | | | - setup-pci.c: remove the unused ide_pci_unregister_driver() - ide-dma.c: remove the unused EXPORT_SYMBOL_GPL(ide_in_drive_list) Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make number of IDE interfaces configurableMatt Mackall2006-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make IDE_HWIFS configurable if EMBEDDED This lets us lop as much as 16k off an x86 build. It's a little ugly, but it's dead simple. Note the fix for HWIFS < 2. Sizing interfaces dynamically unfortunately turns out to be pretty major surgery. add/remove: 0/1 grow/shrink: 0/11 up/down: 0/-16182 (-16182) function old new delta ide_hwifs 16920 1692 -15228 init_irq 1113 750 -363 ideprobe_init 283 138 -145 ide_pci_setup_ports 1329 1193 -136 save_match 85 - -85 ide_register_hw_with_fixup 367 287 -80 ide_setup 1364 1308 -56 is_chipset_set 40 4 -36 create_proc_ide_interfaces 225 205 -20 init_ide_data 84 67 -17 ide_probe_for_cmd640x 1198 1183 -15 ide_unregister 1452 1451 -1 Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IDE: claim extra DMA ports regardless of channelSergei Shtylylov2006-10-03
| | | | | | | | | | | | | | - Claim extra DMA I/O ports regardless of what IDE channels are present/enabled. - Remove extra ports handling from ide_mapped_mmio_dma() since it's not applicable to the custom-mapping IDE drivers. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ide: option to disable cache flushes for buggy drivesJens Axboe2006-07-28
| | | | | | | | Some drives claim they support cache flushing, but get seriously confused if you try. Add this option to be able to boot with barriers enabled by default. Signed-off-by: Jens Axboe <axboe@suse.de>
* [PATCH] lockdep: annotate enable_in_hardirq()Ingo Molnar2006-07-03
| | | | | | | | | | | | Make use of local_irq_enable_in_hardirq() API to annotate places that enable hardirqs in hardirq context. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6Linus Torvalds2006-06-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits) [PATCH] devfs: Remove it from the feature_removal.txt file [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree [PATCH] devfs: Remove devfs_remove() function from the kernel tree [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree [PATCH] devfs: Remove devfs support from the sound subsystem [PATCH] devfs: Remove devfs support from the ide subsystem. [PATCH] devfs: Remove devfs support from the serial subsystem [PATCH] devfs: Remove devfs from the init code [PATCH] devfs: Remove devfs from the partition code ...
| * [PATCH] devfs: Remove devfs support from the ide subsystem.Greg Kroah-Hartman2006-06-26
| | | | | | | | | | | | Also removes the ide drive devfs_name field as it's no longer needed Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] ide: fix error handling for drives which clear the FIFO on errorAlan Cox2006-06-28
|/ | | | | | | | | | | | | If the controller FIFO cleared automatically on error we must not try and drain it as this will hang some chips. Based in concept on a broken patch from -mm some while back Signed-off-by: Alan Cox <alan@redhat.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] IDE CD end-of media error fixAlan Cox2006-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a patch from Alan that fixes a real ide-cd.c regression causing bogus "Media Check" failures for perfectly valid Fedora install ISOs, on certain CD-ROM drives. This is a forward port to 2.6.16 (from RHEL) of the minimal changes for the end of media problem. It may not be sufficient for some controllers (promise notably) and it does not touch the locking so the error path locking is as horked as in mainstream. From: Ingo Molnar <mingo@elte.hu> I have ported the patch to 2.6.17-rc4 and tested it by provoking end-of-media IO errors with an unaligned ISO image. Unlike the vanilla kernel, the patched kernel interpreted the error condition correctly with 512 byte granularity: hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 } ide: failed opcode was: unknown ATAPI device hdc: Error: Illegal request -- (Sense key=0x05) Illegal mode for this track or incompatible medium -- (asc=0x64, ascq=0x00) The failed "Read 10" packet command was: "28 00 00 04 fb 78 00 00 06 00 00 00 00 00 00 00 " end_request: I/O error, dev hdc, sector 1306080 Buffer I/O error on device hdc, logical block 163260 Buffer I/O error on device hdc, logical block 163261 Buffer I/O error on device hdc, logical block 163262 the unpatched kernel produces an incorrect error dump: hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 } ide: failed opcode was: unknown end_request: I/O error, dev hdc, sector 1306080 Buffer I/O error on device hdc, logical block 163260 hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 } ide: failed opcode was: unknown end_request: I/O error, dev hdc, sector 1306088 Buffer I/O error on device hdc, logical block 163261 hdc: command error: status=0x51 { DriveReady SeekComplete Error } hdc: command error: error=0x54 { AbortedCommand LastFailedSense=0x05 } ide: failed opcode was: unknown end_request: I/O error, dev hdc, sector 1306096 Buffer I/O error on device hdc, logical block 163262 I do not have the right type of CD-ROM drive to reproduce the end-of-media data corruption bug myself, but this same patch in RHEL solved it. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Jens Axboe <axboe@suse.de> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Don't include linux/config.h from anywhere else in include/David Woodhouse2006-04-26
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] remove the obsolete IDEPCI_FLAG_FORCE_PDCAdrian Bunk2006-04-19
| | | | | | | | | | Noted by Sergei Shtylylov <sshtylyov@ru.mvista.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ide: Allow IDE interface to specify its not capable of 32-bit operationsKumar Gala2006-03-24
| | | | | | | | | | | | In some embedded systems the IDE hardware interface may only support 16-bit or smaller accesses. Allow the interface to specify if this is the case and don't allow the drive or user to override the setting. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] drivers/ide/ide-io.c: make __ide_end_request() staticAdrian Bunk2006-02-03
| | | | | | | | | | Since there's no longer any external user, we can make __ide_end_request() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] stop CompactFlash devices being marked as removableRichard Purdie2006-02-03
| | | | | | | | | | | | | | | | | | This patch stops CompactFlash devices being marked as removable. They are not removable (as defined by Linux) as the media and device are inseparable. When a card is removed, the whole device is removed from the system and never sits in a media-less state. This stops some nasty udev device creation/destruction loops. Further, once this change is made, there is no need for ide to can be removed from ide_drive_t. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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