1. 11 5月, 2008 1 次提交
  2. 08 5月, 2008 7 次提交
  3. 07 5月, 2008 13 次提交
  4. 06 5月, 2008 19 次提交
    • A
      pata_atiixp: Don't disable · 05177f17
      Alan Cox 提交于
      A couple of distributions (Fedora, Ubuntu) were having weird problems with the
      ATI IXP series PATA controllers being reported as simplex.  At the heart of
      the problem is that both distros ignored the recommendations to load pata_acpi
      and ata_generic *AFTER* specific host drivers.
      
      The underlying cause however is that if you D3 and then D0 an ATI IXP it
      helpfully throws away some configuration and won't let you rewrite it.
      
      Add checks to ata_generic and pata_acpi to pin ATIIXP devices.  Possibly the
      real answer here is to quirk them and pin them, but right now we can't do that
      before they've been pcim_enable()'d by a driver.
      
      I'm indebted to David Gero for this.  His bug report not only reported the
      problem but identified the cause correctly and he had tested the right values
      to prove what was going on
      
      [If you backport this for 2.6.24 you will need to pull in the 2.6.25
      removal of the bogus WARN_ON() in pcim_enagle]
      Signed-off-by: NAlan Cox <alan@redhat.com>
      Tested-by: NDavid Gero <davidg@havidave.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      05177f17
    • T
      sata_inic162x: update intro comment, up the version and drop EXPERIMENTAL · 22bfc6d5
      Tejun Heo 提交于
      sata_inic162x is now ready for production use.  Bump the version,
      explain what's working and what's not and drop EXPERIMENTAL.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      22bfc6d5
    • T
      sata_inic162x: add cardbus support · ba66b242
      Tejun Heo 提交于
      When attached to cardbus, mmio region is at BAR 1.  Other than that,
      everything else is the same.  Add support for it.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      ba66b242
    • T
      sata_inic162x: kill now unused SFF related stuff · f8b0685a
      Tejun Heo 提交于
      sata_inic162x now doesn't use any SFF features.  Remove all SFF
      related stuff.
      
      * Mask unsolicited ATA interrupts.  This removes our primary source of
        spurious interrupts and spurious interrupt handling can be tightened
        up.  There's no need to clear ATA interrupts by reading status
        register either.
      
      * Don't dance with IDMA_CTL_ATA_NIEN and simplify accesses to
        IDMA_CTL.
      
      * Inherit from sata_port_ops instead of ata_sff_port_ops.
      
      * Don't initialize or use ioaddr.  There's no need to map BAR0-4
        anymore.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      f8b0685a
    • T
      sata_inic162x: use IDMA for ATAPI commands · b3f677e5
      Tejun Heo 提交于
      Use IDMA for ATAPI commands.  Write and some misc commands time out
      when executed using ATAPI_PROT_DMA but ATAPI_PROT_PIO works fine.  As
      PIO is driven by DMA too, it doesn't make any noticeable difference
      for native SATA devices.  inic_check_atapi_dma() is implemented to
      force PIO for those ATAPI commands.
      
      After this change, sata_inic162x issues all commands using IDMA.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      b3f677e5
    • T
      sata_inic162x: use IDMA for non DMA ATA commands · 049e8e04
      Tejun Heo 提交于
      Use IDMA for PIO and non-data commands.  This allows sata_inic162x to
      safely drive LBA48 devices.  Kill inic_dev_config() which contains
      code to reject LBA48 devices.
      
      With this change, status checking in inic_qc_issue() to avoid hard
      lock up after hotplug can go away too.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      049e8e04
    • T
      sata_inic162x: kill now unused bmdma related stuff · ab5b0235
      Tejun Heo 提交于
      sata_inic162x doesn't use BMDMA anymore.  Kill bmdma related stuff.
      
      * prdctl manipulation
      
      * port IRQ mask manipulation
      
      * inherit ATA_BASE_SHT instead of ATA_BMDMA_SHT
      
      * BMDMA methods
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      ab5b0235
    • T
      sata_inic162x: use IDMA for ATA_PROT_DMA · 3ad400a9
      Tejun Heo 提交于
      The modified driver on initio site has enough clue on how to use IDMA.
      Use IDMA for ATA_PROT_DMA.
      
      * LBA48 now works as long as it uses DMA (LBA48 devices still aren't
        allowed as it can destroy data if PIO is used for any reason).
      
      * No need to mask IRQs for read DMAs as IDMA_DONE is properly raised
        after transfer to memory is actually completed.  There will be some
        spurious interrupts but host_intr will handle it correctly and
        manipulating port IRQ mask interacts badly with the other port for
        some reason, so command type dependent port IRQ masking is not used
        anymore.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      3ad400a9
    • T
      sata_inic162x: update TF read handling · 364fac0e
      Tejun Heo 提交于
      inic162x can't reliably read back TF or at least we don't know how to
      do it yet.  The only values which seem reliable are status and error.
      This patch updates access to TF.
      
      * implement inic_tf_read() which reads the TF area in mmio area
      
      * implement custom inic_qc_fill_rtf() which only returns true if
        status indicates device error.  it'll be returning bogus addresses
        for device errors but it'll be able to report why it failed at
        least.
      
      * implement custom inic_check_ready() and use ata_wait_after_reset()
        instead of the SFF version.
      
      * use inic_tf_read() for classification.
      
      This is not perfect but it fixes hotplug detection failure and at
      least makes the driver report 0's instead of random garbages while
      reporting valid status and error for device errors.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      364fac0e
    • T
      sata_inic162x: add / update constants · b0dd9b8e
      Tejun Heo 提交于
      * add a bunch of constants, most are from the datasheet, a few
        undocumented ones are from initio's modified driver
      
      * HCTL_PWRDWN is bit 12 not 13
      
      This is in preparation of further inic162x updates.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      b0dd9b8e
    • T
      sata_inic162x: misc clean ups · 36f674d9
      Tejun Heo 提交于
      * use larger indents for structure member definitions
      
      * kill unused variable @addr in inic_scr_write()
      
      * kill unnecessary flushes in inic_freeze/thaw()
      
      * kill buggy explicit kfree() on devres managed port private data
      
      This is in preparation of further inic162x updates.
      Signed-off-by: NTejun Heo <htejun@gmail.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      36f674d9
    • M
      sata_mv use hweight16() for bit counting (V2) · c46938cc
      Mark Lord 提交于
      Some tidying as suggested by Grant Grundler.
      
      Nuke local bit-counting function from sata_mv in favour of using hweight16().
      Also add a short explanation for the 15msec timeout used when waiting for empty/idle.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      c46938cc
    • M
      sata_mv NCQ-EH for FIS-based switching · 4c299ca3
      Mark Lord 提交于
      Convert sata_mv's EH for FIS-based switching (FBS) over to the
      sequence recommended by Marvell.  This enables us to catch/analyze
      multiple failed links on a port-multiplier when using NCQ.
      
      To do this, we clear the ERR_DEV bit in the EDMA Halt-Conditions register,
      so that the EDMA engine doesn't self-disable on the first NCQ error.
      
      Our EH code sets the MV_PP_FLAG_DELAYED_EH flag to prevent new commands
      being queued while we await completion of all outstanding NCQ commands
      on all links of the failed PM.
      
      The SATA Test Control register tells us which links have failed,
      so we must only wait for any other active links to finish up
      before we stop the EDMA and run the .error_handler afterward.
      
      The patch also includes skeleton code for handling of non-NCQ FBS operation.
      This is more for documentation purposes right now, as that mode is not yet
      enabled in sata_mv.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      4c299ca3
    • M
      sata_mv delayed eh handling · 29d187bb
      Mark Lord 提交于
      Introduce a new "delayed error handling" mechanism in sata_mv,
      to enable us to eventually deal with multiple simultaneous NCQ
      failures on a single host link when a PM is present.
      
      This involves a port flag (MV_PP_FLAG_DELAYED_EH) to prevent new
      commands being queued, and a pmp bitmap to indicate which pmp links
      had NCQ errors.
      
      The new mv_pmp_error_handler() uses those values to invoke
      ata_eh_analyze_ncq_error() on each failed link, prior to freezing
      the port and passing control to sata_pmp_error_handler().
      
      This is based upon a strategy suggested by Tejun.
      
      For now, we just implement the delayed mechanism.
      The next patch in this series will add the multiple-NCQ EH code
      to take advantage of it.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      29d187bb
    • M
      libata: export ata_eh_analyze_ncq_error · 10acf3b0
      Mark Lord 提交于
      Export ata_eh_analyze_ncq_error() for subsequent use by sata_mv,
      as suggested by Tejun.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      10acf3b0
    • M
      sata_mv new mv_port_intr function · a9010329
      Mark Lord 提交于
      Separate out the inner loop body of mv_host_intr()
      into it's own function called mv_port_intr().
      
      This should help maintainabilty.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      a9010329
    • M
      sata_mv fix mv_host_intr bug for hc_irq_cause · eabd5eb1
      Mark Lord 提交于
      Remove the unwanted reads of hc_irq_cause from mv_host_intr(),
      thereby removing a bug whereby we were not always reading it when needed..
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      eabd5eb1
    • M
      sata_mv NCQ and SError fixes for mv_err_intr · 37b9046a
      Mark Lord 提交于
      Sigh.  Undo some earlier changes to mv_port_intr(),
      so that we now read/clear SError again in all cases.
      
      Arrange the top of the function to be as close as possible
      to what we need for a later update (in this series) for ERR_DEV handling.
      
      Fix things so that libata-eh can attempt a READ_LOG_EXT_10H
      in response to a failed NCQ command, by just doing a local
      mv_eh_freeze() rather than ata_port_freeze().
      
      This will now fully handle NCQ errors much of the time,
      but more fixes are needed for FBS/PMP, and for certain chip errata.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      37b9046a
    • M
      sata_mv rearrange mv_config_fbs · 00f42eab
      Mark Lord 提交于
      Rearrange mv_config_fbs() to more closely follow the (corrected) datasheet
      recommendations for NCQ and FIS-based switching (FBS).
      
      Also, maintain a port flag to let us know when FBS is enabled.
      We will make more use of that flag later in this patch series.
      Signed-off-by: NMark Lord <mlord@pobox.com>
      Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
      00f42eab