Eric Lee / smarc-fsl-linux-kernel

29 Jul, 2014

1 commit

  • db1924d08   vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix() ... Browse Code »

    As result of deprecation of MSI-X/MSI enablement functions
    pci_enable_msix() and pci_enable_msi_block() all drivers
    using these two interfaces need to be updated to use the
    new pci_enable_msi_range() or pci_enable_msi_exact()
    and pci_enable_msix_range() or pci_enable_msix_exact()
    interfaces.

    Signed-off-by: Alexander Gordeev
    Acked-by: Arvind Kumar
    Signed-off-by: Christoph Hellwig

    Alexander Gordeev
     

20 Mar, 2014

3 commits

  • 028455600   [SCSI] vmw_pvscsi: Some improvements in pvscsi driver. ... Browse Code »

    This change is about the following:
    (1) If the number of targets is 16+ then default ring_pages to 32.
    (2) Change default queue depth (per device) to 254.
    (3) Implement change_queue_depth function so that queue_depth per device can
    be changed at run time. Honors the request only if coming from sysfs.
    (4) Clean up the info returned by modinfo.

    Signed-off-by: Arvind Kumar
    Signed-off-by: James Bottomley

    Arvind Kumar
     
  • 2a815b5ac   [SCSI] vmw_pvscsi: Add support for I/O requests coalescing. ... Browse Code »

    This change allows pvscsi driver to coalesce I/O requests
    before issuing them. The number of I/O's coalesced can be
    dynamically configured based on the workload.

    Signed-off-by: Rishi Mehta
    Signed-off-by: Arvind Kumar
    Signed-off-by: James Bottomley

    Rishi Mehta
     
  • a2713cceb   [SCSI] vmw_pvscsi: Fix pvscsi_abort() function. ... Browse Code »

    This change ensures that pvscsi_abort() function returns SUCCESS
    only when the command in question was actually completed, otherwise
    returns FAILURE. The code before change, was causing a bug where
    driver tries to complete a command to the mid-layer while the mid-layer
    has already requested the driver to abort that command, in response
    to which the driver has responded with SUCCESS causing mid-layer
    to free the command struct.

    Signed-off-by: Arvind Kumar
    Tested-by: Ewan Milne
    Signed-off-by: James Bottomley

    Arvind Kumar
     

14 Oct, 2013

1 commit

  • 08b7e1071   SCSI: remove unnecessary pci_set_drvdata() ... Browse Code »

    Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
    (device-core: Ensure drvdata = NULL when no driver is bound),
    the driver core clears the driver data to NULL after device_release
    or on probe failure. Thus, it is not needed to manually clear the
    device driver data to NULL.

    Signed-off-by: Jingoo Han
    Cc: James Bottomley
    Signed-off-by: Jiri Kosina

    Jingoo Han
     

04 Jan, 2013

1 commit

  • 6f0397905   Drivers: scsi: remove __dev* attributes. ... Browse Code »

    CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
    markings need to be removed.

    This change removes the use of __devinit, __devexit_p, __devinitdata,
    __devinitconst, and __devexit from these drivers.

    Based on patches originally written by Bill Pemberton, but redone by me
    in order to handle some of the coding style issues better, by hand.

    Cc: Bill Pemberton
    Cc: Adam Radford
    Cc: "James E.J. Bottomley"
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

01 Sep, 2012

1 commit

27 Mar, 2012

1 commit

02 Dec, 2011

1 commit

17 Nov, 2010

1 commit

  • f281233d3   SCSI host lock push-down ... Browse Code »

    Move the mid-layer's ->queuecommand() invocation from being locked
    with the host lock to being unlocked to facilitate speeding up the
    critical path for drivers who don't need this lock taken anyway.

    The patch below presents a simple SCSI host lock push-down as an
    equivalent transformation. No locking or other behavior should change
    with this patch. All existing bugs and locking orders are preserved.

    Additionally, add one parameter to queuecommand,
    struct Scsi_Host *
    and remove one parameter from queuecommand,
    void (*done)(struct scsi_cmnd *)

    Scsi_Host* is a convenient pointer that most host drivers need anyway,
    and 'done' is redundant to struct scsi_cmnd->scsi_done.

    Minimal code disturbance was attempted with this change. Most drivers
    needed only two one-line modifications for their host lock push-down.

    Signed-off-by: Jeff Garzik
    Acked-by: James Bottomley
    Signed-off-by: Linus Torvalds

    Jeff Garzik
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it 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>

    Tejun Heo
     

09 Feb, 2010

1 commit

05 Dec, 2009

1 commit