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* ide: add IDE_DFLAG_NIEN_QUIRK device flagBartlomiej Zolnierkiewicz2009-06-071-1/+1
| | | | | | | | | | Add IDE_DFLAG_NIEN_QUIRK device flag and use it instead of drive->quirk_list. 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: respect quirk_drives[] list on all controllersBartlomiej Zolnierkiewicz2009-06-071-0/+1
| | | | | | | | | | | * Add ide_check_nien_quirk_list() helper to the core code and then use it in ide_port_tune_devices(). * Remove no longer needed ->quirkproc methods from hpt366.c and pdc202xx_{new,old}.c. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge branch 'for-linus' into for-nextBartlomiej Zolnierkiewicz2009-06-071-2/+4
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| * ide: preserve Host Protected Area by default (v2)Bartlomiej Zolnierkiewicz2009-06-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From the perspective of most users of recent systems, disabling Host Protected Area (HPA) can break vendor RAID formats, GPT partitions and risks corrupting firmware or overwriting vendor system recovery tools. Unfortunately the original (kernels < 2.6.30) behavior (unconditionally disabling HPA and using full disk capacity) was introduced at the time when the main use of HPA was to make the drive look small enough for the BIOS to allow the system to boot with large capacity drives. Thus to allow the maximum compatibility with the existing setups (using HPA and partitioned with HPA disabled) we automically disable HPA if any partitions overlapping HPA are detected. Additionally HPA can also be disabled using the "nohpa" module parameter (i.e. "ide_core.nohpa=0.0" to disable HPA on /dev/hda). v2: Fix ->resume HPA support. While at it: - remove stale "idebus=" entry from Documentation/kernel-parameters.txt Cc: Robert Hancock <hancockrwd@gmail.com> Cc: Frans Pop <elendil@planet.nl> Cc: "Andries E. Brouwer" <Andries.Brouwer@cwi.nl> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> [patch description was based on input from Alan Cox and Frans Pop] Emphatically-Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-gd: implement block device ->set_capacity method (v2)Bartlomiej Zolnierkiewicz2009-06-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Use ->probed_capacity to store native device capacity for ATA disks. * Add ->set_capacity method to struct ide_disk_ops. * Implement disk device ->set_capacity method for ATA disks. * Implement block device ->set_capacity method. v2: * Check if LBA and HPA are supported in ide_disk_set_capacity(). * According to the spec the SET MAX ADDRESS command shall be immediately preceded by a READ NATIVE MAX ADDRESS command. * Add ide_disk_hpa_{get_native,set}_capacity() helpers. Together with the previous patch adding ->set_capacity block device method this allows automatic disabling of Host Protected Area (HPA) if any partitions overlapping HPA are detected. Cc: Robert Hancock <hancockrwd@gmail.com> Cc: Frans Pop <elendil@planet.nl> Cc: "Andries E. Brouwer" <Andries.Brouwer@cwi.nl> Cc: Al Viro <viro@zeniv.linux.org.uk> Emphatically-Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Merge branch 'for-linus' into for-nextBartlomiej Zolnierkiewicz2009-05-221-1/+1
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| * ide: report timeouts in ide_busy_sleep()Bartlomiej Zolnierkiewicz2009-05-221-1/+1
| | | | | | | | | | | | | | * change 'hwif' argument to 'drive' * report an error on timeout Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | ide: remove hw_regs_t typedefBartlomiej Zolnierkiewicz2009-05-171-7/+7
| | | | | | | | | | | | | | | | | | Remove hw_regs_t typedef and rename struct hw_regs_s to struct ide_hw. 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: pass number of ports to ide_host_{alloc,add}() (v2)Bartlomiej Zolnierkiewicz2009-05-171-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass number of ports to ide_host_{alloc,add}() and then update all users accordingly. v2: - drop no longer needed NULL initializers in buddha.c, cmd640.c and gayle.c (noticed by Sergei) 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: remove chipset field from hw_regs_tBartlomiej Zolnierkiewicz2009-05-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert host drivers that still use hw_regs_t's chipset field to use the one in struct ide_port_info instead. * Move special handling of ide_pci chipset type from ide_hw_configure() to ide_init_port(). * Remove chipset field from hw_regs_t. While at it: - remove stale comment in delkin_cb.c 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: replace special_t typedef by IDE_SFLAG_* flagsBartlomiej Zolnierkiewicz2009-05-171-15/+6
| | | | | | | | | | | | | | | | | | | | | | Replace: - special_t typedef by IDE_SFLAG_* flags - 'special_t special' ide_drive_t's field by 'u8 special_flags' one 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-atapi: kill unused fields and callbacksTejun Heo2009-04-191-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Impact: remove fields and code paths which are no longer necessary Now that ide-tape uses standard mechanisms to transfer data, special case handling for bh handling can be dropped from ide-atapi. Drop the followings. * pc->cur_pos, b_count, bh and b_data * drive->pc_update_buffers() and pc_io_buffers(). Signed-off-by: Tejun Heo <tj@kernel.org>
* | ide-cd,atapi: use bio for internal commandsTejun Heo2009-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: unify request data buffer handling rq->data is used mostly to pass kernel buffer through request queue without using bio. There are only a couple of places which still do this in kernel and converting to bio isn't difficult. This patch converts ide-cd and atapi to use bio instead of rq->data for request sense and internal pc commands. With previous change to unify sense request handling, this is relatively easily achieved by adding blk_rq_map_kern() during sense_rq prep and PC issue. If blk_rq_map_kern() fails for sense, the error is deferred till sense issue and aborts the failed command which triggered the sense. Note that this is a slim possibility as sense prep is done on each command issue, so for the above condition to actually trigger, all preps since the last sense issue till the issue of the request which would require a sense should fail. * do_request functions might sleep now. This should be okay as ide request_fn - do_ide_request() - is invoked only from make_request and plug work. Make sure this is the case by adding might_sleep() to do_ide_request(). * Functions which access the read sense data before the sense request is complete now should access bio_data(sense_rq->bio) as the sense buffer might have been copied during blk_rq_map_kern(). * ide-tape updated to map sg. * cdrom_do_block_pc() now doesn't have to deal with REQ_TYPE_ATA_PC special case. Simplified. * tp_ops->output/input_data path dropped from ide_pc_intr(). Signed-off-by: Tejun Heo <tj@kernel.org>
* | ide-atapi: convert ide-{floppy,tape} to using preallocated sense bufferBorislav Petkov2009-04-191-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we're issuing REQ_TYPE_SENSE now we need to allow those types of rqs in the ->do_request callbacks. As a future improvement, sense_len assignment might be unified across all ATAPI devices. Borislav to check with specs and test. As a result, get rid of ide_queue_pc_head() and drive->request_sense_rq. tj: * Init request sense ide_atapi_pc from sense request. In the longer timer, it would probably better to fold ide_create_request_sense_cmd() into its only current user - ide_floppy_get_format_progress(). * ide_retry_pc() no longer takes @disk. CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | ide: add helpers for preparing sense requestsBorislav Petkov2009-04-191-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is in preparation of removing the queueing of a sense request out of the IRQ handler path. Use struct request_sense as a general sense buffer for all ATAPI devices ide-{floppy,tape,cd}. tj: * blk_get_request(__GFP_WAIT) can't be called from do_request() as it can cause deadlock. Converted to use inline struct request and blk_rq_init(). * Added xfer / cdb len selection depending on device type. * All sense prep logics folded into ide_prep_sense() which never fails. * hwif->rq clearing and sense_rq used handling moved into ide_queue_sense_rq(). * blk_rq_map_kern() conversion is moved to later patch. CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | ide kill unused ide_cmd->specialTejun Heo2009-04-191-1/+0
|/ | | | | | | | Impact: removal of unused field No one uses ide_cmd->special anymore. Kill it. Signed-off-by: Tejun Heo <tj@kernel.org>
* ide: refactor tf_read() methodSergei Shtylyov2009-04-081-2/+3
| | | | | | | | | | | | | | Simplify tf_read() method, making it deal only with 'struct ide_taskfile' and the validity flags that the upper layer passes, and factoring out the code that deals with the high order bytes into ide_tf_readback() to be called from the only two functions interested, ide_complete_cmd() and ide_dump_sector(). This should stop the needless code duplication in this method and so make it about twice smaller than it was; along with simplifying the setup for the method call, this should save both time and space... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: refactor tf_load() methodSergei Shtylyov2009-04-081-2/+2
| | | | | | | | | | | | | Simplify tf_load() method, making it deal only with 'struct ide_taskfile' and the validity flags that the upper layer passes, and moving the code that deals with the high order bytes into the only function interested, do_rw_taskfile(). This should stop the needless code duplication in this method and so make it about twice smaller than it was; along with simplifying the setup for the method call, this should save both time and space... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: simplify 'struct ide_taskfile'Sergei Shtylyov2009-04-081-34/+15
| | | | | | | | | | | | Make 'struct ide_taskfile' cover only 8 register values and thus put two such fields ('tf' and 'hob') into 'struct ide_cmd', dropping unnecessary 'tf_array' field from it. This required changing the prototype of ide_get_lba_addr() and ide_tf_dump(). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> [bart: fix setting of ATA_LBA bit for LBA48 commands in __ide_do_rw_disk()] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: replace IDE_TFLAG_* flags by IDE_VALID_*Sergei Shtylyov2009-04-081-57/+38
| | | | | | | | | | | Replace IDE_TFLAG_{IN|OUT}_* flags meaning to the taskfile register validity on input/output by the IDE_VALID_* flags and introduce 4 symmetric 8-bit register validity indicator subfields, 'valid.{input/output}.{tf|hob}', into the 'struct ide_cmd' instead of using the 'tf_flags' field for that purpose (this field can then be turned from 32-bit into 8-bit one). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: inline SELECT_DRIVE()Sergei Shtylyov2009-03-311-1/+0
| | | | | | | | Since SELECT_DRIVE() has boiled down to a mere dev_select() method call, it now makes sense to just inline it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: turn selectproc() method into dev_select() method (take 5)Sergei Shtylyov2009-03-311-3/+3
| | | | | | | | | | | Turn selectproc() method into dev_select() method by teaching it to write to the device register and moving it from 'struct ide_port_ops' to 'struct ide_tp_ops'. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: benh@kernel.crashing.org Cc: petkovbb@gmail.com [bart: add ->dev_select to at91_ide.c and tx4939.c (__BIG_ENDIAN case)] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: rename IDE_TFLAG_IN_[HOB_]FEATURESergei Shtylyov2009-03-311-4/+8
| | | | | | | | | | The feature register has never been readable -- when its location is read, one gets the error register value; hence rename IDE_TFLAG_IN_[HOB_]FEATURE into IDE_TFLAG_IN_[HOB_]ERROR and introduce the 'hob_error' field into the 'struct ide_taskfile' (despite the error register not really depending on the HOB bit). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: turn set_irq() method into write_devctl() methodSergei Shtylyov2009-03-311-4/+2
| | | | | | | | Turn set_irq() method with its software reset hack into write_devctl() method (for just writing a value into the device control register) at last... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-floppy: use ide_pio_bytes()Bartlomiej Zolnierkiewicz2009-03-311-5/+0
| | | | | | | | | | | | | | | | | | * 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: decrease size of ->pc_buf field in struct ide_atapi_pcBartlomiej Zolnierkiewicz2009-03-311-1/+1
| | | | | | | | | | 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: sanitize ide_build_sglist() and ide_destroy_dmatable()Bartlomiej Zolnierkiewicz2009-03-311-3/+3
| | | | | | | | | | | | | | * 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: add ->dma_check methodBartlomiej Zolnierkiewicz2009-03-311-0/+1
| | | | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-311-3/+4
| | | | | | | | | | | | | * 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/+1
| | | | | | | | | | | | | | | | | | | | | | 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: add ->dma_clear method and remove ->dma_timeout oneBartlomiej Zolnierkiewicz2009-03-311-2/+2
| | | | | | | | | | | | | | | | | | 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: fix non-SECTOR_SIZE-multiples PIO transfers for fs requestsBartlomiej Zolnierkiewicz2009-03-311-5/+0
| | | | | | | | 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 Zolnierkiewicz2009-03-311-0/+4
| | | | | | | | | | | | | | | | | | | | | * 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: keep track of number of bytes instead of sectors in struct ide_cmdBartlomiej Zolnierkiewicz2009-03-271-2/+2
| | | | | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-271-3/+2
| | | | | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-271-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 Zolnierkiewicz2009-03-271-4/+2
| | | | | | | | | | | | | * 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>
* ide: use do_rw_taskfile() for ATA_CMD_PACKET commandsBartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | | | | | | | | | | | | | * Pass command to ide_issue_pc() and update ->do_request methods in ide-{cd,floppy,tape}.c accordingly. * Convert ide_pktcmd_tf_load() to ide_init_packet_cmd() which just initializes command structure and use do_rw_taskfile() to load ATA_CMD_PACKET commands. While at it: * Rename ide{floppy,tape}_issue_pc() to ide_{floppy,tape}_issue_pc(). 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: pass command to ide_map_sg()Bartlomiej Zolnierkiewicz2009-03-271-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | * 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/+1
| | | | | | | | | | | | | | | | | | * 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: pass number of bytes to complete to ide_complete_rq()Bartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove BUG() from ide_complete_rq()Bartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | | | It is no longer needed so remove it, also while at it dequeue the request only on blk_end_request() success and make ide_complete_rq() return an error value. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: pass error value to ide_complete_rq()Bartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | | | | | | | Set rq->errors at ide_complete_rq() call sites and then pass error value to ide_complete_rq(). [ Some rq->errors assignments look really wrong but this patch leaves them alone to not introduce too many changes at once. ] There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_end_rq() (v2)Bartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | | | | | | | | | | | | | * Move request dequeuing from __ide_end_request() to ide_end_request(). * Rename __ide_end_request() to ide_end_rq() and export it. * Fix ide_end_rq() to pass original blk_end_request() return value. * ide_end_dequeued_request() is used only in cdrom_end_request() so inline it there and then remove the function. v2: * Remove needless BUG_ON() while at it (start_request()'s one is enough). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use ata_tf_protocols enumsBartlomiej Zolnierkiewicz2009-03-271-1/+2
| | | | | | | | | | | | | | | * Add IDE_TFLAG_MULTI_PIO taskfile flag and set it for commands using multi-PIO protocol. * Use ata_tf_protocols enums instead of TASKFILE_* defines to denote command's protocol and then rename ->data_phase field to ->protocol. * Remove no longer needed <linux/hdreg.h> includes. 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 Zolnierkiewicz2009-03-271-9/+11
| | | | | | | | | | * 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 Zolnierkiewicz2009-03-271-8/+9
| | | | | | | | | | | | | | | * 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: remove ide_task_t typedefBartlomiej Zolnierkiewicz2009-03-271-13/+13
| | | | | | | | | | | | | | While at it: - rename struct ide_task_s to struct ide_cmd - remove stale comments from idedisk_{read_native,set}_max_address() - drop unused 'cmd' argument from ide_{cmd,task}_ioctl() - drop unused 'task' argument from tx4939ide_tf_load_fixup() - rename ide_complete_task() to ide_complete_cmd() - use consistent naming for struct ide_cmd variables 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 Zolnierkiewicz2009-03-271-0/+2
| | | | | | | | | | | | | | | | * 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: return request status from ->pc_callback methodBartlomiej Zolnierkiewicz2009-03-271-1/+1
| | | | | | | | | | Make ->pc_callback method return request status and then move the request completion from ->pc_callback to ide_pc_intr(). 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>
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