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* ide/ata: Add export.h for EXPORT_SYMBOL/THIS_MODULE where neededPaul Gortmaker2011-10-311-0/+1
| | | | | | | | They were getting this implicitly by an include of module.h from device.h -- but we are going to clean that up and break that include chain, so include export.h explicitly now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* ide: clean up timed out request handlingTejun Heo2010-10-261-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8f6205cd572fece673da0255d74843680f67f879 introduced a bug where a timed out DMA request is never requeued and lost. 6072f7491f5ef391a575e18a1165e72a3eef1601 fixed this by making ide_dma_timeout_retry() requeue the request itself. While the fix is correct, it makes DMA and non-DMA paths asymmetric regarding how the in flight request is requeued. As long as hwif->rq is set, the IDE driver is assuming ownership of the request and the request should either be completed or requeued when clearing hwif->rq. In the timeout path, the ide driver holds onto the request as long as the recovery action (ie. reset) is in progress and clears it after the state machine is stopped (ide_stopped return), so the existing requeueing logic is correct. The bug occurred because ide_dma_timeout_retry() explicitly clears hwif->rq without requeueing it. ide_dma_timeout_retry() is called only by ide_timer_expiry() and returns ide_started only when ide_error() would return it - ie. after reset state machine has started in which case the state machine will eventually end up executing the ide_stopped path in ide_timer_expiry() after reset protocol is complete. So, there is no need to clear hwif->rq from ide_dma_timeout_retry(). ide_timer_expiry() will handle it the same way as PIO timeout path. Kill hwif->rq clearing and requeueing from ide_dma_timeout_retry() and let ide_timer_expiry() deal with it. The end result should remain the same. grepping shows ide_dma_timeout_retry() is the only site which clears hwif->rq without taking care of the request, so there shouldn't be similar fallouts. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6Linus Torvalds2010-04-081-0/+1
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: ide: Fix IDE taskfile with cfq scheduler ide: Must hold queue lock when requeueing ide: Requeue request after DMA timeout
| * ide: Requeue request after DMA timeoutHerbert Xu2010-04-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed that my KVM virtual machines were experiencing IDE issues resulting in processes stuck on waiting for buffers to complete. The root cause is of course race conditions in the ancient qemu backend that I'm using. However, the fact that the guest isn't recovering is a bug. I've tracked it down to the change made last year to dequeue requests at the start rather than at the end in the IDE layer. commit 8f6205cd572fece673da0255d74843680f67f879 Author: Tejun Heo <tj@kernel.org> Date: Fri May 8 11:53:59 2009 +0900 ide: dequeue in-flight request The problem is that the function ide_dma_timeout_retry does not requeue the current request, causing one request to be lost for each DMA timeout. This patch fixes this by requeueing the request. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* ide: relax DMA info validity checkingBartlomiej Zolnierkiewicz2009-06-241-21/+0
| | | | | | | | | | | | | | | | | | | There are some broken devices that report multiple DMA xfer modes enabled at once (ATA spec doesn't allow it) but otherwise work fine with DMA so just delete ide_id_dma_bug(). [ As discovered by detective work by Frans and Bart, due to how handling of the ID block was handled before commit c419993 ("ide-iops: only clear DMA words on setting DMA mode") this check was always seeing zeros in the fields or other similar garbage. Therefore this check wasn't actually checking anything. Now that the tests actually check the real bits, all we see are devices that trigger the check yet work perfectly fine, therefore killing this useless check is the best thing to do. -DaveM ] Reported-by: Frans Pop <elendil@planet.nl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-2.6.31' of ↵Linus Torvalds2009-06-121-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 * 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (29 commits) ide: re-implement ide_pci_init_one() on top of ide_pci_init_two() ide: unexport ide_find_dma_mode() ide: fix PowerMac bootup oops ide: skip probe if there are no devices on the port (v2) sl82c105: add printk() logging facility ide-tape: fix proc warning ide: add IDE_DFLAG_NIEN_QUIRK device flag ide: respect quirk_drives[] list on all controllers hpt366: enable all quirks for devices on quirk_drives[] list hpt366: sync quirk_drives[] list with pdc202xx_{new,old}.c ide: remove superfluous SELECT_MASK() call from do_rw_taskfile() ide: remove superfluous SELECT_MASK() call from ide_driveid_update() icside: remove superfluous ->maskproc method ide-tape: fix IDE_AFLAG_* atomic accesses ide-tape: change IDE_AFLAG_IGNORE_DSC non-atomically pdc202xx_old: kill resetproc() method pdc202xx_old: don't call pdc202xx_reset() on IRQ timeout pdc202xx_old: use ide_dma_test_irq() ide: preserve Host Protected Area by default (v2) ide-gd: implement block device ->set_capacity method (v2) ...
| * ide: unexport ide_find_dma_mode()Bartlomiej Zolnierkiewicz2009-06-101-1/+0
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-dma: don't reset request fields on dma_timeout_retry()Tejun Heo2009-04-211-16/+4
| | | | | | | | | | | | | | | | | | | | | | Impact: drop unnecessary code Now that everything uses bio and block operations, there is no need to reset request fields manually when retrying a request. Every field is guaranteed to be always valid. Drop unnecessary request field resetting from ide_dma_timeout_retry(). Signed-off-by: Tejun Heo <tj@kernel.org>
* | ide: convert to rq pos and nr_sectors accessorsTejun Heo2009-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ide doesn't manipulate request fields anymore and thus all hard and their soft equivalents are always equal. Convert all references to accessors. [ Impact: use pos and nr_sectors accessors ] Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | ide-dma: don't reset request fields on dma_timeout_retry()Tejun Heo2009-04-281-16/+4
|/ | | | | | | | | | | Impact: drop unnecessary code Now that everything uses bio and block operations, there is no need to reset request fields manually when retrying a request. Every field is guaranteed to be always valid. Drop unnecessary request field resetting from ide_dma_timeout_retry(). Signed-off-by: Tejun Heo <tj@kernel.org>
* ide: add support for CFA specified transfer modes (take 3)Sergei Shtylyov2009-03-311-0/+8
| | | | | | | | | | | | | Add support for the CompactFlash specific PIO modes 5/6 and MWDMA modes 3/4. Since there were no PIO5 capable hard drives produced and one would also need 66 MHz IDE clock to actually get the difference WRT the address setup timings programmed, I decided to simply replace the old non-standard PIO mode 5 timings with the CFA specified ones. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: stf_xl@wp.pl Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: identify data word 53 bit 1 doesn't cover words 62 and 63 (take 3)Sergei Shtylyov2009-03-311-18/+14
| | | | | | | | | | | | | The IDE code assumed for years that the bit 1 of the identify data word 53 also covers the validity of the SW/MW DMA information in words 62 and 63, but it has always covered only words 64 thru 70, with words 62 and 63 being defined in the original ATA spec, not in ATA-2... This fix however should only concern *very* old hard disks and rather old CF cards... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: sanitize ide_build_sglist() and ide_destroy_dmatable()Bartlomiej Zolnierkiewicz2009-03-311-25/+25
| | | | | | | | | | | | | | * Move ide_map_sg() calls out from ide_build_sglist() to ide_dma_prepare(). * Pass command to ide_destroy_dmatable(). * Rename ide_build_sglist() to ide_dma_map_sg() and ide_destroy_dmatable() to ide_dma_unmap_sg(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: set/clear drive->waiting_for_dma flag in the core codeBartlomiej Zolnierkiewicz2009-03-311-0/+4
| | | | | | | | | | Set/clear drive->waiting_for_dma flag in the core code instead of in ->dma_setup and ->dma_end methods. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: move ide_map_sg() call out of ->dma_setup method (take 2)Bartlomiej Zolnierkiewicz2009-03-311-2/+6
| | | | | | | | | | | | | | | Move ide_map_sg() call from ->dma_setup implementations and ide_destroy_dmatable() one from *_build_dmatable() to ide_dma_prepare(). There should be no functional changes caused by this patch. Sergei: Removed 'use_pio_instead' labels and replaced 'goto' with 'return 0' -- that required no changes to the follow-up patches... Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->dma_check methodBartlomiej Zolnierkiewicz2009-03-311-1/+4
| | | | | | | | | | | | | | | * Add (an optional) ->dma_check method for checking if DMA can be used for a given command and fail DMA setup in ide_dma_prepare() if necessary. * Convert alim15x3 and trm290 host drivers to use ->dma_check. * Rename ali15x3_dma_setup() to ali_dma_check() while at it. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_dma_prepare() helperBartlomiej Zolnierkiewicz2009-03-311-1/+10
| | | | | | | | | | | | | * Add ide_dma_prepare() helper. * Convert ide_issue_pc() and do_rw_taskfile() to use it. * Make ide_build_sglist() static. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: destroy DMA mappings after ending DMA (v2)Bartlomiej Zolnierkiewicz2009-03-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | Move ide_destroy_dmatable() call out from ->dma_end method to {ide_pc,cdrom_newpc,ide_dma}_intr(), ide_dma_timeout_retry() and sgiioc4_resetproc(). This causes minor/safe behavior changes w.r.t.: * cmd64x.c::cmd64{8,x}_dma_end() * cs5536.c::cs5536_dma_end() * icside.c::icside_dma_end() * it821x.c::it821x_dma_end() * scc_pata.c::__scc_dma_end() * sl82c105.c::sl82c105_dma_end() * tx4939ide.c::tx4939ide_dma_end() v2: * Fix build for CONFIG_BLK_DEV_IDEDMA=n (reported by Randy Dunlap). Cc: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: inline ide_dma_timeout() into ide_dma_timeout_retry()Bartlomiej Zolnierkiewicz2009-03-311-15/+6
| | | | | | | | | | Since ide_dma_timeout() is only used by ide_dma_timeout_retry() inline it there. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->dma_clear method and remove ->dma_timeout oneBartlomiej Zolnierkiewicz2009-03-311-4/+6
| | | | | | | | | | | | | | | | | | All custom ->dma_timeout implementations call the generic one thus it is possible to have only an optional method for resetting DMA engine instead: * Add ->dma_clear method and convert hpt366, pdc202xx_old and sl82c105 host drivers to use it. * Always use ide_dma_timeout() in ide_dma_timeout_retry() and remove ->dma_timeout method. * Make ide_dma_timeout() static. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->dma_timer_expiry method and remove ->dma_exec_cmd one (v2)Bartlomiej Zolnierkiewicz2009-03-271-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Rename dma_timer_expiry() to ide_dma_sff_timer_expiry() and export it. * Add ->dma_timer_expiry method and use it to set hwif->expiry for ATA_PROT_DMA protocol in do_rw_taskfile(). * Initialize ->dma_timer_expiry to ide_dma_sff_timer_expiry() for SFF hosts. * Move setting hwif->expiry from ide_execute_command() to its users and drop 'expiry' argument. * Use ide_execute_command() instead of ->dma_exec_cmd in do_rw_taskfile(). * Remove ->dma_exec_cmd method and its implementations. * Unexport ide_execute_command() and ide_dma_intr(). v2: * Fix CONFIG_BLK_DEV_IDEDMA=n build (noticed by Randy Dunlap). * Fix *dma_expiry naming (suggested by Sergei Shtylyov). There should be no functional changes caused by this patch. Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: pass command to ide_map_sg()Bartlomiej Zolnierkiewicz2009-03-271-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | * Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET commands. * Pass command to ->dma_setup method and update all its implementations accordingly. * Pass command instead of request to ide_build_sglist(), *_build_dmatable() and ide_map_sg(). While at it: * Fix scc_dma_setup() documentation + use ATA_DMA_WR define. * Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(), change return value type to 'int' and drop unused 'ddir' argument. * Do some minor cleanups in [tx4939]ide_dma_setup(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ide_end_request()Bartlomiej Zolnierkiewicz2009-03-271-1/+2
| | | | | | | | | | | | | | | | | | * Add ide_rq_bytes() helper. * Add blk_noretry_request() quirk to ide_complete_rq() (currently only fs requests can be marked as "noretry" so there is no change in behavior). * Switch current ide_end_request() users to use ide_complete_rq(). [ No need to check for rq->nr_sectors == 0 in {ide_dma,task_pio}_intr(), nsectors == 0 in cdrom_end_request() and err == 0 in ide_do_devset(). ] * Remove no longer needed ide_end_request(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: sanitize ide_finish_cmd()Bartlomiej Zolnierkiewicz2009-03-271-1/+4
| | | | | | | | | | * Move ide_end_request() call out from ide_finish_cmd() to its users. * Use ide_finish_cmd() in task_no_data_intr(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: move command related fields from ide_hwif_t to struct ide_cmdBartlomiej Zolnierkiewicz2009-03-271-7/+9
| | | | | | | | | | * Move command related fields from ide_hwif_t to struct ide_cmd. * Make ide_init_sg_cmd() take command and sectors number as arguments. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: pass command instead of request to ide_pio_datablock()Bartlomiej Zolnierkiewicz2009-03-271-2/+2
| | | | | | | | | | | | | | | * Add IDE_TFLAG_FS taskfile flag and set it for REQ_TYPE_FS requests. * Convert ->{in,out}put_data methods to take command instead of request as an argument. Then convert pre_task_out_intr(), task_end_request(), task_error(), task_in_unexpected(), ide_pio_sector(), ide_pio_multi() and ide_pio_datablock() in similar way. * Rename task_end_request() to ide_finish_cmd(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: call ide_build_sglist() prior to ->dma_setup (v2)Bartlomiej Zolnierkiewicz2009-03-271-2/+3
| | | | | | | | | | | | | | | | * Re-map sg table if needed in ide_build_sglist(). * Move ide_build_sglist() call from ->dma_setup to its users. * Un-export ide_build_sglist(). v2: * Build fix for CONFIG_BLK_DEV_IDEDMA=n (noticed by Randy Dunlap). There should be no functional changes caused by this patch. Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: move ide_dma_timeout_retry() to ide-dma.cBartlomiej Zolnierkiewicz2009-03-241-0/+57
| | | | | | | | Move ide_dma_timeout_retry() to ide-dma.c and add static inline version for CONFIG_BLK_DEV_IDEDMA=n. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: save the returned value of dma_map_sgFUJITA Tomonori2009-03-131-3/+9
| | | | | | | | | | | | | dma_map_sg could return a value different to 'nents' argument of dma_map_sg so the ide stack needs to save it for the later usage (e.g. for_each_sg). The ide stack also needs to save the original sg_nents value for pci_unmap_sg. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> [bart: backport to Linus' tree] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: merge ide_hwgroup_t with ide_hwif_t (v2)Bartlomiej Zolnierkiewicz2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | | * Merge ide_hwgroup_t with ide_hwif_t. * Cleanup init_irq() accordingly, then remove no longer needed ide_remove_port_from_hwgroup() and ide_ports[]. * Remove now unused HWGROUP() macro. While at it: * ide_dump_ata_error() fixups v2: * Fix ->quirk_list check in do_ide_request() (s/hwif->cur_dev/prev_port->cur_dev). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: move SFF DMA code to ide-dma-sff.cBartlomiej Zolnierkiewicz2008-10-131-362/+1
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: cleanup ide-dma.cBartlomiej Zolnierkiewicz2008-10-131-50/+38
| | | | | | | | | - s/HWIF(drive)/drive->hwif/ - s/HWGROUP(drive)/[drive->]hwif->hwgroup/ - fixup error messages in ide_dma_intr() & dma_timer_expiry() - fix checkpatch.pl errors/warnings Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: cleanup ide_build_dmatable()Bartlomiej Zolnierkiewicz2008-10-131-43/+30
| | | | | | | | | | | - use for_each_sg() - move printing 'DMA table too small' message below use_pio_instead label - merge '64KB bug' comment with function documentation - fix intendation There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove needless includes from ide-dma.cBartlomiej Zolnierkiewicz2008-10-131-8/+0
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: switch to DMA-mapping API part #2Bartlomiej Zolnierkiewicz2008-10-131-12/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Follow-up to commit 5c05ff68b9a9b40a9be949497e0aa980185565cf ("ide: switch to DMA-mapping API"): * pci_{alloc,free}_consistent() -> dma_{alloc,free}_coherent() in ide_{allocate,release}_dma_engine(). * Add ->prd_max_nents and ->prd_ent_size fields to ide_hwif_t (+ set default values in ide_allocate_dma_engine()). * Make ide_{allocate,release}_dma_engine() available also for CONFIG_BLK_DEV_IDEDMA_SFF=n. Then convert au1xxx-ide.c, scc_pata.c and sgiioc4.c to use them. * Add missing ->init_dma method to scc_pata. This patch also fixes: - ->dmatable_cpu leak for au1xxx-ide - too early realease of ->dmatable_cpu for scc_pata - wrong amount of ->dmatable_cpu memory being freed for sgiioc4 While at it: - remove superfluous ->dma_base check from ide_unregister() - return -ENOMEM on error in ide_release_dma_engine() - beautify error message in ide_release_dma_engine() Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make ide_dma_timeout() available also for CONFIG_BLK_DEV_IDEDMA_SFF=nBartlomiej Zolnierkiewicz2008-10-131-4/+5
| | | | | | | | | | | | Make ide_dma_timeout() available also for CONFIG_BLK_DEV_IDEDMA_SFF=n and convert {ics,au1xxx-}ide.c to use it. While at it: - dump ATA Status register content on error - use EXPORT_SYMBOL_GPL() to match the rest of SFF DMA functions Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make ide_dma_lost_irq() available also for CONFIG_BLK_DEV_IDEDMA_SFF=nBartlomiej Zolnierkiewicz2008-10-131-5/+4
| | | | | | | | | | | Make ide_dma_lost_irq() available also for CONFIG_BLK_DEV_IDEDMA_SFF=n and convert {ics,au1xxx-}ide.c to use it. While at it: - use EXPORT_SYMBOL_GPL() to match the rest of SFF DMA functions Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: __ide_dma_end() -> ide_dma_end()Bartlomiej Zolnierkiewicz2008-10-131-4/+3
| | | | | | | | While at it: - use EXPORT_SYMBOL_GPL() to match the rest of SFF DMA functions Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use 'drive->dn & 1' instead of drive->select.b.unitBartlomiej Zolnierkiewicz2008-10-131-1/+1
| | | | | | | | | | | | | | | | * Call ide_port_init_devices() in ide_host_register() also if 'struct ide_port_info *d' is not available. * Init drive->dn in ide_port_init_devices() instead of ide_probe_port() so it is valid also in ->init_dev. * Pass device number to ide_dev_apply_params(). * Use 'drive->dn & 1' instead of drive->select.b.unit. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove superfluous ->waiting_for_dma checksBartlomiej Zolnierkiewicz2008-10-131-3/+1
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove superfluous ->dma field from ide_hwif_tBartlomiej Zolnierkiewicz2008-10-131-2/+0
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add device flagsBartlomiej Zolnierkiewicz2008-10-131-3/+4
| | | | | | | | | | | | | | Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields to IDE_DFLAG_* flags. While at it: - IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48 - fixup some comments - remove needless g->flags zeroing from ide*_probe() There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use ATA_* defines instead of *_STAT and *_ERR onesBartlomiej Zolnierkiewicz2008-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ERR_STAT -> ATA_ERR * INDEX_STAT -> ATA_IDX * ECC_STAT -> ATA_CORR * DRQ_STAT -> ATA_DRQ * SEEK_STAT -> ATA_DSC * WRERR_STAT -> ATA_DF * READY_STAT -> ATA_DRDY * BUSY_STAT -> ATA_BUSY * MARK_ERR -> ATA_AMNF * TRK0_ERR -> ATA_TRK0NF * ABRT_ERR -> ATA_ABORTED * MCR_ERR -> ATA_MCR * ID_ERR -> ATA_IDNF * MC_ERR -> ATA_MC * ECC_ERR -> ATA_UNC * ICRC_ERR -> ATA_ICRC * BBD_ERR -> ATA_BBK Also: * ILI_ERR -> ATAPI_ILI * EOM_ERR -> ATAPI_EOM * LFS_ERR -> ATAPI_LFS * CD -> ATAPI_COD * IO -> ATAPI_IO Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove drive->driveidBartlomiej Zolnierkiewicz2008-10-101-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Factor out HDIO_[OBSOLETE,GET]_IDENTITY ioctls handling to ide_get_identity_ioctl(). * Use temporary buffer in ide_get_identity_ioctl() instead of accessing drive->id directly. * Add ide_id_to_hd_driveid() inline to convert raw id into struct hd_driveid format (needed on big-endian). * Use ide_id_to_hd_driveid() in ide_get_identity_ioctl(), cleanup ide_fix_driveid() and switch ide to use use raw id. * Remove no longer needed drive->driveid. This leaves us with 3 users of struct hd_driveid in tree: - arch/um/drivers/ubd_kern.c - drivers/block/xsysace.c - drivers/usb/storage/isd200.c While at it: * Use ata_id_u{32,64}() and ata_id_has_{dma,lba,iordy}() macros. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make drive->id an union (take 2)Bartlomiej Zolnierkiewicz2008-10-101-23/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make drive->id an unnamed union so id can be accessed either by using 'u16 *id' or 'struct hd_driveid *driveid'. Then convert all existing drive->id users accordingly (using 'u16 *id' when possible). This is an intermediate step to make ide 'struct hd_driveid'-free. While at it: - Add missing KERN_CONTs in it821x.c. - Use ATA_ID_WORDS and ATA_ID_*_LEN defines. - Remove unnecessary checks for drive->id. - s/drive_table/table/ in ide_in_drive_list(). - Cleanup ide_config_drive_speed() a bit. - s/drive1/dev1/ & s/drive0/dev0/ in ide_undecoded_slave(). v2: Fix typo in drivers/ide/ppc/pmac.c. (From Stephen Rothwell) There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-dma: fix ide_build_dmatable() for TRM290Sergei Shtylylov2008-10-051-1/+1
| | | | | | | | | | | | Apparently, 'xcount' being 0 does not mean 0 bytes for TRM290; it means 4 bytes, judging from the code immediately preceding this check. So, we must never try to "split" the PRD for TRM290. This is probably never hit anyway -- with the DMA buffers aligned to at least 512 bytes and ATAPI DMA not being used for non block I/O commands... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix pre-EIDE SWDMA support on big-endianBartlomiej Zolnierkiewicz2008-08-051-5/+1
| | | | | | | id->tDMA is of 'unsigned char' type so endianness is already correct and calling le16_to_cpu() is wrong. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: trivial sparse annotationsHarvey Harrison2008-07-241-1/+1
| | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add struct ide_tp_ops (take 2)Bartlomiej Zolnierkiewicz2008-07-231-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add struct ide_tp_ops for transport methods. * Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info and ide_hwif_t. * Set the default hwif->tp_ops in ide_init_port_data(). * Set host driver specific hwif->tp_ops in ide_init_port(). * Export ide_exec_command(), ide_read_status(), ide_read_altstatus(), ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}() and ata_{in,out}put_data(). * Convert host drivers and core code to use struct ide_tp_ops. * Remove no longer needed default_hwif_transport(). * Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops. While at it: * Use struct ide_port_info in falconide.c and q40ide.c. * Rename ata_{in,out}put_data() to ide_{in,out}put_data(). v2: * Fix missing convertion in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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