Commit graph

72 commits

Author SHA1 Message Date
Bartlomiej Zolnierkiewicz
f212ff28f0 ide: move ide_rate_filter() calls to the upper layer (take 2)
* Move ide_rate_filter() calls from host drivers to IDE core.

* Make ide_rate_filter() static.

* Make 'speed' argument of ->speedproc const.

v2:
* Fix it8213_tune_chipset() comment.

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Bartlomiej Zolnierkiewicz
7670df73fb ide: mode limiting fixes for user requested speed changes
* Add an extra argument to ide_max_dma_mode() for passing requested transfer
  mode.  Use it as an upper limit when finding the best DMA for device/host.

* Rename ide_max_dma_mode() to ide_find_dma_mode() and at the same time add
  ide_max_dma_mode() wrapper which passes XFER_UDMA_6 as a requested mode to
  ide_find_dma_mode().  Also add inline ide_find_dma_mode() version for
  CONFIG_BLK_DEV_IDEDMA=n case.

* Pass requested transfer mode from ide_find_dma_mode() to ide_get_mode_mask()
  to avoid false warning from eighty_ninty_three().

* Use ide_find_dma_mode() to limit the user requested transfer mode in
  ide_rate_filter().  Also limit the requested mode by host max PIO mode.


Above changes make ide_rate_filter() to:

* Clip desired transfer mode down if it is invalid (values 0x0F, 0x13-0x19
  and 0x25-0x39, values > 0x46 were already clipped down, same for values
  0x25-0x39 but iff UDMA was not supported by the host).

* Clip desired transfer mode down if it is currently unsupported by IDE core
  (PIO6 and MWDMA3-4, the latter were already clipped down but iff UDMA was
  not supported by the host).

* Clip desired transfer mode down according to the host capabilities
  (UDMA modes were already clipped down but MWDMA/SWDMA/PIO weren't,
  also ->atapi_dma flag was not respected).

* Clip desired transfer mode down according to the device capabilities
  (except PIO modes for now which require mode work) - shouldn't be a
  problem since ide_set_xfer_rate() is called _after_ device has accepted
  given transfer mode.

and also result in a number of host driver specific bugfixes:

* icside
  - clip unsupported PIO5 mode down
  - fix unsupported/invalid modes being set in drive->current_speed

* ide-cris
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
  - fix BUG() on unsupported/invalid modes

* au1xxx-ide
  - clip unsupported PIO5, SWDMA0-2 and MWDMA0-2
    (if BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=n) modes down

* aec62xx
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
  - fix 0x00 being programmed as PIO timing for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* alim15x3
  - clip DMA modes down for ATAPI devices (chipset revision == 0x20 only)
  - fix theoretical OOPS for 0x0F mode
  - fix unsupported/invalid modes being set on the device

* amd74xx
  - clip unsupported SWDMA0-2 (on COBRA_7401 revs <= 7) modes down
  - fix random PIO timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* atiixp
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix cached MWDMA mode being cleared for unsupported/invalid modes
  - fix PIO{0,2} timings being programmed for unsupported/invalid modes
  - fix theoretical OOPS for PIO5-6 and 0x0F modes
  - fix unsupported/invalid modes being set on the device

* cmd64x
  - clip unsupported SWDMA0-2 modes down

* cs5530
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix BUG() on unsupported/invalid modes
    (which happened if the device accepted the setting)

* cs5535
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix theoretical OOPS for PIO5-6 and 0x0F modes

* hpt34x
  - clip DMA modes down for ATAPI devices
  - fix invalid timings being programmed for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* hpt366
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix PIO0 timings being programmed for unsupported/invalid modes
  - fix DMA timings being cleared for MWDMA3-4 and 0x25-0x39 modes
  - fix unsupported/invalid modes being set on the device

* it8213
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* it821x
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
    (chipset in smart mode and revision 0x10 in pass-through mode)

* jmicron
  - clip unsupported SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device

* pdc202xx_new
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device

* pdc202xx_old
  - clip unsupported PIO5 mode down
  - fix incorrect timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* piix
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* sc1200
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix BUG() on unsupported/invalid modes
    (which happened if the device accepted the setting)

* scc_pata
  - clip unsupported PIO5, SWDMA0-2 and MWDMA0-2 modes down

* serverworks
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix DMA/UDMA timings/settings being cleared for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* siimage
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices (SATA chipsets)

* sis5513
  - clip unsupported PIO5 mode down
  - fix BUG() on unsupported/invalid modes

* sl82c105
  - clip unsupported SWDMA0-2 modes down

* slc90e66
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* tc86c001
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix PIO0 timings being programmed for PIO5/0x0F/SWDMA0-2/0x13-0x19 modes
  - fix invalid 0x00 DMA timing being programmed for MWDMA3-4/0x25-0x39 modes
  - fix unsupported/invalid modes being set on the device

* triflex
  - clip unsupported PIO5 mode down

* via82cxxx
  - fix random PIO timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* pmac
  - clip unsupported PIO5 and SWDMA0-2 modes down

* cmd640/ht6560b
  - clip DMA modes down (if CONFIG_BLK_DEV_IDEDMA=y)
  - fix PIO5 being clipped to PIO4 (if CONFIG_BLK_DEV_IDEDMA=n)

* opti621
  - clip DMA modes down (if CONFIG_BLK_DEV_IDEDMA=y)
  - clip unsupported PIO4 to PIO3 (if CONFIG_BLK_DEV_IDEDMA=n)


While at it:

* Use ide_rate_filter() in cs5520.c::cs5520_tune_chipset().

* Remove no longer needed checks from hpt366.c::hpt3{6,7}x_tune_chipset().

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Bartlomiej Zolnierkiewicz
6a824c92db ide: remove ide_find_best_pio_mode()
* Add ->host_flags to ide_hwif_t to store ide_pci_device_t.host_flags,
  assign it in setup-pci.c:ide_pci_setup_ports().

* Add IDE_HFLAG_PIO_NO_{BLACKLIST,DOWNGRADE} to ide_pci_device_t.host_flags
  and teach ide_get_best_pio_mode() about them.  Also remove needless
  !drive->id check while at it (drive->id is always present).

* Convert amd74xx, via82cxxx and ide-timing.h to use ide_get_best_pio_mode()
  and then remove no longer needed ide_find_best_pio_mode().

There should be no functionality changes caused by this patch.

Acked-by: Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20 01:11:58 +02:00
Bartlomiej Zolnierkiewicz
2134758d2a ide: drop "PIO data" argument from ide_get_best_pio_mode()
* Drop no longer needed "PIO data" argument from ide_get_best_pio_mode()
  and convert all users accordingly.

* Remove no longer needed ide_pio_data_t.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20 01:11:58 +02:00
Bartlomiej Zolnierkiewicz
7dd00083b1 ide: add ide_pio_cycle_time() helper (take 2)
* Add ide_pio_cycle_time() helper.

* Use it in ali14xx/ht6560b/qd65xx/cmd64{0,x}/sl82c105 and pmac host drivers
  (previously cycle time given by the device was only used for "pio" == 255).

* Remove no longer needed ide_pio_data_t.cycle_time field.

v2:
* Fix "ata_" prefix (Noticed by Jeff).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20 01:11:56 +02:00
Bartlomiej Zolnierkiewicz
2229833c13 ide: add ide_dev_has_iordy() helper (take 4)
* Add ide_dev_has_iordy() helper and use it sl82c105 host driver.

* Remove no longer needed ide_pio_data_t.use_iordy field.

v2/v3:
* Fix issues noticed by Sergei:
  - correct patch description
  - fix comment in ide_get_best_pio_mode()

v4:
* Fix "ata_" prefix (Noticed by Jeff).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20 01:11:55 +02:00
Bartlomiej Zolnierkiewicz
342cdb6d47 ide: make ide_get_best_pio_mode() print info if overriding PIO mode
* Print info about overriding PIO mode in ide_get_best_pio_mode().

* Remove info about overriding PIO mode from cmd64{0,x} host drivers.

* Remove no longer needed ide_pio_data_t.overridden field.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20 01:11:55 +02:00
Bartlomiej Zolnierkiewicz
4728d546d7 ide: remove ide_dma_enable()
* 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>
2007-05-16 00:51:46 +02:00
Bartlomiej Zolnierkiewicz
7f8f48af08 ide: cable detection fixes (take 2)
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>
2007-05-10 00:01:10 +02:00
Bartlomiej Zolnierkiewicz
2d5eaa6dd7 ide: rework the code for selecting the best DMA transfer mode (v3)
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>
2007-05-10 00:01:08 +02:00
Sergei Shtylyov
81d368e0e2 ide: ide_get_best_pio_mode() returns incorrect IORDY setting (take 2)
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>
2007-03-03 17:48:53 +01:00
Bartlomiej Zolnierkiewicz
7569e8dc22 ide: add ide_use_fast_pio() helper (v3)
* 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>
2007-02-17 02:40:25 +01:00
Bartlomiej Zolnierkiewicz
056a697b73 ide: unexport ide_set_xfer_rate() (v2)
In cmd64x, siimage and scc_pata drivers:
* don't set drive->init_speed as it should be already
  set by successful execution of ide_set_xfer_rate()
* use hwif->speedproc functions directly

Above changes allows removal of EXPORT_SYMBOL_GPL(ide_set_xfer_rate).

v2:
* updated for scc_pata driver

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17 02:40:24 +01:00
Bartlomiej Zolnierkiewicz
6679054895 ide: remove write-only ide_pio_data_t.blacklisted
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17 02:40:24 +01:00
Sergei Shtylyov
0750508ae6 [PATCH] ide_dma_speed() fixes
ide_dma_speed() fails to actually honor the IDE drivers' mode support
masks) because of the bogus checks -- thus, selecting the DMA transfer mode
that the driver explicitly refuses to support is possible.  Additionally,
there is no check for validity of the UltraDMA mode data in the drive ID,
and the function is misdocumented.

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>
2006-10-03 08:04:07 -07:00
Jens Axboe
4aff5e2333 [PATCH] Split struct request ->flags into two parts
Right now ->flags is a bit of a mess: some are request types, and
others are just modifiers. Clean this up by splitting it into
->cmd_type and ->cmd_flags. This allows introduction of generic
Linux block message types, useful for sending generic Linux commands
to block devices.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-09-30 20:23:37 +02:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Ingo Molnar
3d1c1cc962 [PATCH] fix IDE deadlock in error reporting code
Michal Piotrowski reported the following validator assert:

 hdd: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
 hdd: set_drive_speed_status: error=0xb4 { AbortedCommand LastFailedSense=0x0b }

 ============================
 [ BUG: illegal lock usage! ]
 ----------------------------
 illegal {in-hardirq-W} -> {hardirq-on-W} usage.
 hdparm/1821 [HC0[0]:SC0[0]:HE1:SE1] takes:
  (ide_lock){++..}, at: [<c0268388>] ide_dump_opcode+0x13/0x9b

 [...]

 stack backtrace:
  [<c0104513>] show_trace+0x1b/0x20
  [<c01045f1>] dump_stack+0x1f/0x24
  [<c013976c>] print_usage_bug+0x1a5/0x1b1
  [<c0139e90>] mark_lock+0x2ca/0x4f7
  [<c013aa96>] __lockdep_acquire+0x47e/0xaa4
  [<c013b536>] lockdep_acquire+0x67/0x7f
  [<c030552d>] _spin_lock+0x24/0x32
  [<c0268388>] ide_dump_opcode+0x13/0x9b
  [<c02688b6>] ide_dump_status+0x4a6/0x4cc
  [<c0267ae6>] ide_config_drive_speed+0x32a/0x33a
  [<c0262dc5>] piix_tune_chipset+0x2ed/0x2f8
  [<c0262e31>] piix_config_drive_xfer_rate+0x61/0xb5
  [<c0263a82>] set_using_dma+0x2f/0x60
  [<c0263bee>] ide_write_setting+0x4a/0xc3
  [<c02647ca>] generic_ide_ioctl+0x8a/0x47f
  [<f886003a>] idecd_ioctl+0xfd/0x133 [ide_cd]
  [<c01f1fff>] blkdev_driver_ioctl+0x4b/0x5f
  [<c01f2783>] blkdev_ioctl+0x770/0x7bd
  [<c017dc0d>] block_ioctl+0x1f/0x21
  [<c0189353>] do_ioctl+0x27/0x6e
  [<c0189604>] vfs_ioctl+0x26a/0x280
  [<c0189667>] sys_ioctl+0x4d/0x7e
  [<c0305ed2>] sysenter_past_esp+0x63/0xa1

in ide_dump_opcode() takes the ide_lock in an irq-unsafe manner, i.e.  this
function expects to be called with irqs disabled.  But
ide_dump_ata[pi]_status() doesnt do that - it enables interrupts specifically.
 That is a no-no - what guarantees that another IDE port couldnt generate an
IDE interrupt while we are dumping this error?  The fix is to turn the
irq-enabling in these functions into irq-disabling.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: 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>
2006-06-26 09:58:28 -07:00
Eric Sesterhenn
125e18745f [PATCH] More BUG_ON conversion
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:08 -07:00
James Bottomley
6593178dd4 [PATCH] ide: fix ide_toggle_bounce() to not try to bounce if we have an IOMMU
The following patch fixes a crash caused by attempting to bounce buffer
when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a 
HP PA-RISC workstation.]

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-18 23:13:33 +01:00
Denis Vlasenko
13bbbf28fb [PATCH] ide: fix line break in ide messages
From: Denis Vlasenko <vda@ilport.com.ua>

* printk("\n") is misplaced, resulting in stray empty line in kernel log
* cleanups nerby: some back-to-back printks are combined, etc

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-07-03 17:09:13 +02:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00