Eric Lee / smarc-fsl-linux-kernel

27 Jul, 2008

1 commit

  • 3dabec717   [SCSI] 3w-9xxx: add MSI support and misc fixes ... Browse Code »

    This patch for the 3w-9xxx scsi driver applies on top of the
    BKL-pushdown changes in -git9.

    This patch does the following:

    - Increase max AENs drained to 256.
    - Add MSI support and "use_msi" module parameter.
    - Fix bug in twa_get_param() on 4GB+.
    - Use pci_resource_len() for ioremap().

    Signed-off-by: James Bottomley

    adam radford
     

15 Jul, 2008

1 commit

21 Jun, 2008

2 commits

23 May, 2008

1 commit

  • 9bcf09108   scsi: fix integer as NULL pointer warning ... Browse Code »

    drivers/scsi/aha152x.c:3585:60: warning: Using plain integer as NULL pointer
    drivers/scsi/aha152x.c:3845:56: warning: Using plain integer as NULL pointer
    drivers/scsi/qla1280.c:2814:37: warning: Using plain integer as NULL pointer
    drivers/scsi/atp870u.c:750:47: warning: Using plain integer as NULL pointer
    drivers/scsi/3w-9xxx.c:1281:36: warning: Using plain integer as NULL pointer
    drivers/scsi/3w-9xxx.c:1293:36: warning: Using plain integer as NULL pointer
    drivers/scsi/3w-9xxx.c:1301:35: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:447:10: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:457:10: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:479:24: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:483:22: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:1213:23: warning: Using plain integer as NULL pointer
    drivers/scsi/hptiop.c:1214:23: warning: Using plain integer as NULL pointer

    Signed-off-by: Harvey Harrison
    Signed-off-by: Linus Torvalds

    Harvey Harrison
     

20 Apr, 2008

1 commit

08 Apr, 2008

2 commits

31 Jan, 2008

1 commit

  • d3f46f39b   [SCSI] remove use_sg_chaining ... Browse Code »

    With the sg table code, every SCSI driver is now either chain capable
    or broken (or has sg_tablesize set so chaining is never activated), so
    there's no need to have a check in the host template.

    Also tidy up the code by moving the scatterlist size defines into the
    SCSI includes and permit the last entry of the scatterlist pools not
    to be a power of two.
    Signed-off-by: James Bottomley

    James Bottomley
     

12 Jan, 2008

1 commit

  • 1e6c38cec   [SCSI] 3w-9xxx: fix abysmal write performance on some motherboards ... Browse Code »

    The 3ware 9500S-8 SATA RAID controller exhibits terrible write
    performance when PCI memory-write-and-invalidate is disabled. This is
    easy to demonstrate by replacing pci_try_set_mwi() in the patch below
    with pci_clear_mwi(). My benchmarks show the following:

    MWI disabled: 15 MB/s write, 330 MB/s read
    MWI enabled: 240 MB/s write, 330 MB/s read

    Most motherboards will enable MWI without the driver having to set it
    explicitly, so most people probably wouldn't encounter this problem.
    For the few motherboards that don't enable it, this patch could give a
    16x performance improvement for writing.

    This issue does not seem to affect the 9550SX controller, but the patch
    doesn't hurt it either. I haven't tested any of the other 3ware
    controllers.

    Signed-off-by: Tony Battersby
    Acked-by: adam radford
    Signed-off-by: James Bottomley

    Tony Battersby
     

23 Oct, 2007

1 commit

16 Oct, 2007

1 commit

23 Jul, 2007

1 commit

  • e6f194d8f   Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (60 commits)
    [SCSI] libsas: make ATA functions selectable by a config option
    [SCSI] bsg: unexport sg v3 helper functions
    [SCSI] bsg: fix bsg_unregister_queue
    [SCSI] bsg: make class backlinks
    [SCSI] 3w-9xxx: add support for 9690SA
    [SCSI] bsg: fix bsg_register_queue error path
    [SCSI] ESP: Increase ESP_BUS_TIMEOUT to 275.
    [SCSI] libsas: fix scr_read/write users and update the libata documentation
    [SCSI] mpt fusion: update Kconfig help
    [SCSI] scsi_transport_sas: add destructor for bsg
    [SCSI] iscsi_tcp: buggered kmalloc()
    [SCSI] qla2xxx: Update version number to 8.02.00-k2.
    [SCSI] qla2xxx: Add ISP25XX support.
    [SCSI] qla2xxx: Use pci_try_set_mwi().
    [SCSI] qla2xxx: Use PCI-X/PCI-Express read control interfaces.
    [SCSI] qla2xxx: Re-factor isp_operations to static structures.
    [SCSI] qla2xxx: Validate mid-layer 'underflow' during check-condition handling.
    [SCSI] qla2xxx: Correct setting of 'current' and 'supported' speeds during FDMI registration.
    [SCSI] qla2xxx: Generalize iIDMA support.
    [SCSI] qla2xxx: Generalize FW-Interface-2 support.
    ...

    Linus Torvalds
     

21 Jul, 2007

1 commit

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

31 May, 2007

2 commits

13 Feb, 2007

1 commit

  • 00977a59b   [PATCH] mark struct file_operations const 6 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

09 Nov, 2006

1 commit

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

27 Sep, 2006

1 commit

03 Jul, 2006

1 commit

06 Jun, 2006

1 commit

  • 5d5ff44fe   [SCSI] fix up request buffer reference in various scsi drivers ... Browse Code »

    Various scsi drivers use scsi_cmnd.buffer and scsi_cmnd.bufflen in their
    queuecommand functions. Those fields are internal storage for the
    midlayer only and are used to restore the original payload after
    request_buffer and request_bufflen have been overwritten for EH. Using
    the buffer and bufflen fields means they do very broken things in error
    handling.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: James Bottomley

    Christoph Hellwig
     

14 Apr, 2006

1 commit

29 Mar, 2006

1 commit

20 Mar, 2006

1 commit

06 Feb, 2006

1 commit

  • 62288f105   [SCSI] 3ware 9000 driver >4GB memory fix ... Browse Code »

    The attached patch fixes a bug in the 3ware 9000 series driver:

    - Fix use_sg == 0 mapping on systems with 4GB or higher.

    This fixes REPORT_LUNS (0xa0) failing with 3ware 9000 controllers on systems
    with lots of ram, mentioned in bugzilla # 6009:

    http://bugzilla.kernel.org/show_bug.cgi?id=6009

    Signed-off-by: Adam Radford
    Signed-off-by: James Bottomley

    adam radford
     

15 Jan, 2006

1 commit

  • a12e25bd5   [SCSI] sem2mutex 3w-[x9]xxx ... Browse Code »

    Convert a the 3w-9xxx.c and 3w-xxxx.c drivers to use mutexes instead
    of semaphores. Untested, but compiles and looks obviously correct.

    Signed-off-by: Jes Sorensen
    Signed-off-by: James Bottomley

    Jes Sorensen
     

07 Nov, 2005

1 commit

  • c9475cb0c   [PATCH] kfree cleanup: drivers/scsi ... Browse Code »

    This is the drivers/scsi/ part of the big kfree cleanup patch.

    Remove pointless checks for NULL prior to calling kfree() in drivers/scsi/.

    Signed-off-by: Jesper Juhl
    Cc: James Bottomley
    Acked-by: Kai Makisara
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jesper Juhl
     

29 Oct, 2005

1 commit

25 Sep, 2005

1 commit

10 Sep, 2005

1 commit

  • d327d0823   [SCSI] 3ware 9000: handle use_sg != 0 for emulated commands ... Browse Code »

    The attached patch updates the driver for the 3ware 9000 series to do
    the following:

    - Correctly handle single sgl's with use_sg = 1.

    This is needed with the latest scsi-block-2.6 merge otherwise the 3w-9xxx
    driver will not work. I tested the patch James sent a few weeks back to fix
    this, and it had a bug where the request_buffer was accessed in
    twa_scsiop_execute_scsi_complete() when it was invalid. This is a corrected
    variation of that patch.

    Signed-off-by: Adam Radford
    Signed-off-by: James Bottomley

    adam radford
     

28 Jun, 2005

1 commit

18 Jun, 2005

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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!

    Linus Torvalds