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* ide: add support for CFA specified transfer modes (take 3)Sergei Shtylyov2009-03-31
| | | | | | | | | | | | | 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-iops: only clear DMA words on setting DMA modeSergei Shtylyov2009-03-31
| | | | | | | | | The bytes indicating current DMA mode in the identify data words 62, 63, and 88 should only change on setting a DMA mode, so stop clearing them on setting PIO mode in ide_config_drive_speed(). While at it, correct SW/MW DMA mode masks... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> 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 Shtylyov2009-03-31
| | | | | | | | | | | | | 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>
* au1xxx-ide: auide_{in|out}sw() should be staticSergei Shtylyov2009-03-31
| | | | | | | | Make auide_{insw|outsw}() 'static' and mark them 'inline' as there's only one call site for each: in the driver's {in|out}put_data() methods respectively... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-floppy: use ide_pio_bytes()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | * Fix ide_init_sg_cmd() setup for non-fs requests. * Convert ide_pc_intr() to use ide_pio_bytes() for floppy media. * Remove no longer needed ide_io_buffers() and sg/sg_cnt fields from struct ide_atapi_pc. * Remove partial completions; kill idefloppy_update_buffers(), as a result. * Add some more debugging statements. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-{floppy,tape}: fix padding for PIO transfersBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | | | | * Return number of bytes left to transfer from idetape_{in,out}put_buffers() and number of bytes done from ide_tape_io_buffers(). * Fix padding for PIO transfers in ide_pc_intr() so read/write buffers are always completely processed and then the transfer is padded if necessary. * Remove invalid error messages. * Remove now superfluous padding from ide{_io_buffers,tape_input_buffers}(). While at it: * Set pc->bh to NULL in idetape_input_buffers() after all bh-s are done. * Cache !!(pc->flags & PC_FLAG_WRITING) in local variable in ide_pc_intr(). Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove CONFIG_BLK_DEV_IDEDOUBLER config optionBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | Nowadays it is not worth having a separate config option for Amiga IDE Doubler support so always include it (it still needs to be explicitly enabled by module parameter). Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: decrease size of ->pc_buf field in struct ide_atapi_pcBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | struct ide_atapi_pc is often allocated on the stack and size of ->pc_buf size is 256 bytes. However since only ide_floppy_create_read_capacity_cmd() and idetape_create_inquiry_cmd() require such size allocate buffers for these pc-s explicitely and decrease ->pc_buf size to 64 bytes. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix locking in drive_release_dev()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | * Request queue cleanup should happen before freeing drive->id and marking device as non-present. Fix it. * Remove superfluous hwif->lock acquiring/releasing. Cc: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: merge ide_arm and ide_generic host driversBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | There is no need for a separate ide_arm host driver nowadays so merge it into ide_generic one. While at it: - return -EBUSY from ide_generic_init() if I/O resources are busy - scale down ide_generic_check_pci_legacy_iobases() for CONFIG_PCI=n Cc: Russell King <rmk@arm.linux.org.uk> Cc: Alexander Schulz <alex@shark-linux.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-generic: remove no longer needed sysfs interfaceBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Nowadays we have "ide_generic.probe_mask=" module parameter and ide_platform host driver so sysfs interface for adding IDE interfaces is no longer needed. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: sanitize ide_build_sglist() and ide_destroy_dmatable()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | * 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>
* trm290: use custom ->dma_{start,end} to handle trm290_prepare_drive()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | Use custom ->dma_{start,end} methods to handle trm290_prepare_drive() there instead of in ->dma_setup method. There should be no functional changes caused by this patch (DMA support is disabled currently in trm290.c). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ns87415: use custom ->dma_{start,end} to handle ns87415_prepare_drive()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Use custom ->dma_{start,end} methods to handle ns87415_prepare_drive() there instead of in ->dma_setup method. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_dma_prepare() helperBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | | | | | 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | 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 Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | 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-cd: minor ide_cdrom_setup() cleanupBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | Cache drive->queue in local variable and use max(). There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: unify transfer padding in cdrom_newpc_intr()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | * 'thislen' is always <= cmd->nleft for non-fs requests so the transfer padding inside the 'while (thislen > 0)' loop can happen only for fs requests -- then move it out of the loop and unify with the transfer padding for non-fs requests ('thislen' == 'len' for fs requests). * blk_dump_rq_flags() dumps all request flags so it is enough to pass only the function name to it. * Update my Copyrights while at it. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: use common completion path for DMA requests in cdrom_newpc_intr()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | | | | | Use the following facts: - rq->nr_sectors should now be always equal to (non-zero) rq->hard_nr_sectors for fs requests - REQ_TYPE_ATA_PC requests have never bio attached to them - rq->hard_nr_sectors == 0 for REQ_TYPE_ATA_PC requests - DMA is used only for fs, pc and REQ_TYPE_ATA_PC requests - 'uptodate' is ignored for pc requests ('rc == 0' case) and use the common completion path also for DMA requests. There should be no functional changes caused by this patch Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: use scatterlists for PIO transfers (non-fs requests) (v2)Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | Convert ide-cd to use scatterlists for PIO transfers and get rid of partial completions (except on error) also for non-fs requests. v2: Do not map dataless commands to an sg since it oopses on the virt_to_page() translation check when DEBUG_VIRTUAL is enabled. (from Borislav Petkov, reported/bisected-by Tetsuo Handa). Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: merge ide_cd_prepare_rw_request() into cdrom_start_rw()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix non-SECTOR_SIZE-multiples PIO transfers for fs requestsBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | We now support arbitrary number of bytes per-IRQ also for fs requests so remove ide_cd_check_transfer_size() and IDE_AFLAG_LIMIT_NFRAMES. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: use scatterlists for PIO transfers (fs requests)Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | | | | | | | | | | * Export ide_pio_bytes(). * Add ->last_xfer_len field to struct ide_cmd. * Add ide_cd_error_cmd() helper to ide-cd. * Convert ide-cd to use scatterlists also for PIO transfers (fs requests only for now) and get rid of partial completions (except when the error happens -- which is still subject to change later because looking at ATAPI spec it seems that the device is free to error the whole transfer with setting the Error bit only on the last transfer chunk). * Update ide_cd_{prepare_rw,restore_request,do_request}() accordingly. * Inline ide_cd_restore_request() into cdrom_start_rw(). Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: cleanup ide_cd_do_request()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: kill whole failed request in ide_cd_do_request()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Untangling cdrom_end_request() uncovered an error in completing failed requests in ide_cd_do_request(). Fix it. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: remove cdrom_end_request()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | Inline cdrom_end_request() into cdrom_newpc_intr() and ide_cd_do_request(). There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: unify cdrom_newpc_intr() exit pathsBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | * Move cdrom_end_request() calls from cdrom_decode_status() and ide_cd_check_ireason() to cdrom_newpc_intr(). * Unify cdrom_newpc_intr() exit paths. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: move setting REQ_FAILED flag out from 'end_request' exit pathBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | Move setting REQ_FAILED flag out from 'end_request' exit path in cdrom_newpc_intr() and also rename 'end_request' to 'out_end'. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: unify ide_cd_do_request() exit pathsBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | | | * Move cdrom_end_request() calls from cdrom_start_rw() and ide_cd_prepare_rw_request() to ide_cd_do_request(). * Unify ide_cd_do_request() exit paths. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: factor out failed request completion from cdrom_end_request()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: remove no longer needed 'ignore' module parameterBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | ide-scsi is gone... Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: remove needless ide_dump_status_no_sense() wrapperBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | It makes no sense to check for BSY bit being set as earlier OK_STAT() check in cdrom_end_request() makes sure that BSY bit is cleared. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: remove dead code from cdrom_decode_status()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: use ide_end_rq() also for failed non-fs requestsBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Use ide_end_rq() also for failed non-fs requests on completion of REQUEST SENSE requests + use blk_rq_bytes() while at it. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: remove dead URLsBartlomiej Zolnierkiewicz2009-03-31
| | | | | Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use PageHighMem() instead of ifdefs in ide_pio_bytes()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Use PageHighMem() instead of ifdefs in ide_pio_bytes() (=> local IRQs won't be disabled when not necessary). Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add support for arbitrary transfer lengths to ide_pio_bytes()Bartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | | | Add support for arbitrary transfer lengths to ide_pio_bytes() and then inline ide_pio_multi() into ide_pio_datablock(). There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-atapi: start DMA after issuing a packet commandBorislav Petkov2009-03-31
| | | | | | | | | | | | Apparently¹, some ATAPI devices want to see the packet command first before enabling DMA otherwise they simply hang indefinitely. Reorder the two steps and start DMA only after having issued the command first. [1] http://marc.info/?l=linux-kernel&m=123835520317235&w=2 Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Reported-by: Michael Roth <mroth@nessie.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* at91_ide: fix ->ftf_flags handlingBartlomiej Zolnierkiewicz2009-03-31
| | | | | | | | Fix some incorrect IDE_FTFLAG_* changes which slipped in commit "ide: add "flagged" taskfile flags to struct ide_taskfile (v2)" (commit 19710d25d50ae0be05eebe4231ed8918b1092d82) few days ago. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: drivers/ide/ide-atapi.c needs <linux/scatterlist.h>Geert Uytterhoeven2009-03-31
| | | | | | | | | | | | | | | | | | On m68k: | drivers/ide/ide-atapi.c: In function 'ide_io_buffers': | drivers/ide/ide-atapi.c:87: error: implicit declaration of function 'sg_page' | drivers/ide/ide-atapi.c:87: warning: passing argument 1 of 'PageHighMem' makes pointer from integer without a cast | drivers/ide/ide-atapi.c:91: warning: passing argument 1 of 'kmap_atomic' makes pointer from integer without a cast | drivers/ide/ide-atapi.c:96: error: implicit declaration of function 'sg_virt' | drivers/ide/ide-atapi.c:96: warning: assignment makes pointer from integer without a cast | drivers/ide/ide-atapi.c:107: error: implicit declaration of function 'sg_next' | drivers/ide/ide-atapi.c:107: warning: assignment makes pointer from integer without a cast [bart: Dmitri Vorobiev submitted similar patch fixing MIPS] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: Fix code dealing with sleeping devices in do_ide_request()Elias Oltmanns2009-03-31
| | | | | | | | | | | | Unfortunately, I missed a catch when reviewing the patch committed as 201bffa4. Here is the fix to the currently broken handling of sleeping devices. In particular, this is required to get the disk shock protection code working again. Reported-by: Christian Thaeter <ct@pipapo.org> Cc: stable@kernel.org Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: keep track of number of bytes instead of sectors in struct ide_cmdBartlomiej Zolnierkiewicz2009-03-27
| | | | | | | | | | | | | | | | * Pass number of bytes instead of sectors to ide_init_sg_cmd(). * Pass number of bytes to process to ide_pio_sector() and rename it to ide_pio_bytes(). * Rename ->nsect field to ->nbytes in struct ide_cmd and use ->nbytes, ->nleft and ->cursg_ofs to keep track of number of bytes instead of sectors. 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_execute_pkt_cmd() (v2)Bartlomiej Zolnierkiewicz2009-03-27
| | | | | | | | | | | | | | | | * Pass command structure to ide_execute_command() and skip __ide_set_handler() for ATAPI protocols on non-DRQ devices. * Convert ide_issue_pc() to always use ide_execute_command() and remove no longer needed ide_execute_pkt_cmd(). v2: * Fix for non-DRQ devices (based on report from Borislav). 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: add ->dma_timer_expiry method and remove ->dma_exec_cmd one (v2)Bartlomiej Zolnierkiewicz2009-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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: set hwif->expiry prior to calling [__]ide_set_handler()Bartlomiej Zolnierkiewicz2009-03-27
| | | | | | | | | | | | | * Set hwif->expiry prior to calling [__]ide_set_handler() and drop 'expiry' argument. * Set hwif->expiry to NULL in ide_{timer_expiry,intr}() and remove 'hwif->expiry = NULL' assignments. 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>
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