10 May, 2010

1 commit

  • Now that core network takes care of trans_start updates, dont do it
    in drivers themselves, if possible. Drivers can avoid one cache miss
    (on dev->trans_start) in their start_xmit() handler.

    Exceptions are NETIF_F_LLTX drivers

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

12 Apr, 2010

1 commit


04 Apr, 2010

1 commit

  • Converts the list and the core manipulating with it to be the same as uc_list.

    +uses two functions for adding/removing mc address (normal and "global"
    variant) instead of a function parameter.
    +removes dev_mcast.c completely.
    +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
    manipulation with lists on a sandbox (used in bonding and 80211 drivers)

    Signed-off-by: Jiri Pirko
    Signed-off-by: David S. Miller

    Jiri Pirko
     

30 Mar, 2010

1 commit

  • …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
     

01 Mar, 2010

1 commit


28 Feb, 2010

1 commit


26 Feb, 2010

1 commit


13 Feb, 2010

1 commit


16 Apr, 2009

1 commit


04 Nov, 2008

1 commit


28 Oct, 2008

1 commit

  • This converts pretty much everything to print_mac. There were
    a few things that had conflicts which I have just dropped for
    now, no harm done.

    I've built an allyesconfig with this and looked at the files
    that weren't built very carefully, but it's a huge patch.

    Signed-off-by: Johannes Berg
    Signed-off-by: David S. Miller

    Johannes Berg
     

14 Oct, 2008

1 commit

  • Clean up the various different email addresses of mine listed in the code
    to a single current and valid address. As Dave says his network merges
    for 2.6.28 are now done this seems a good point to send them in where
    they won't risk disrupting real changes.

    Signed-off-by: Alan Cox
    Signed-off-by: David S. Miller

    Alan Cox
     

19 May, 2008

1 commit


14 Oct, 2007

1 commit


11 Oct, 2007

3 commits

  • This is nicer than the MAC_FMT stuff.

    Signed-off-by: Joe Perches
    Signed-off-by: David S. Miller

    Joe Perches
     
  • We now have struct net_device_stats embedded in struct net_device,
    and the default ->get_stats() hook does the obvious thing for us.

    Run through drivers/net/* and remove the driver-local storage of
    statistics, and driver-local ->get_stats() hook where applicable.

    This was just the low-hanging fruit in drivers/net; plenty more drivers
    remain to be updated.

    [ Resolved conflicts with napi_struct changes and fix sunqe build
    regression... -DaveM ]

    Signed-off-by: Jeff Garzik
    Signed-off-by: David S. Miller

    Jeff Garzik
     
  • It's been a useless no-op for long enough in 2.6 so I figured it's time to
    remove it. The number of people that could object because they're
    maintaining unified 2.4 and 2.6 drivers is probably rather small.

    [ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ]

    Signed-off-by: Ralf Baechle
    Signed-off-by: Jeff Garzik
    Signed-off-by: David S. Miller

    Ralf Baechle
     

11 Jul, 2007

1 commit


05 May, 2007

1 commit

  • Fix a race condition in the transmit code, where the dma interrupt could update
    the free tx buffer count concurrently and wedge the tx queue.

    Fix the misuse of the rx frame status and rx frame length registers: no more
    "fifo overrun" errors caused by the OFLOW bit being tested in the frame length
    register (instead of the status register), and no more missed packets due to
    incorrect length taken from status register (instead of the frame length
    register).

    Fix a panic (skb_over_panic BUG) caused by allocating and then copying an
    incoming packet while the packet length register was changing.

    Cut-and-paste the reset code from the powermac mace driver (mace.c), so the NIC
    functions when MacOS does not initialise it (important for anyone wanting to
    use the Emile boot loader).

    Cut-and-paste the error counting and timeout recovery code from mace.c.

    Fix over allocation of rx buffer memory (it's page order, not page count).

    Converted to driver model.

    Converted to DMA API.

    Since I've run out of ways to make it fail, and since it performs well now,
    promote the driver from EXPERIMENTAL status. Tested on both quadra 840av and
    660av.

    Signed-off-by: Finn Thain
    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Linus Torvalds

    Finn Thain
     

26 Apr, 2007

2 commits


06 Feb, 2007

1 commit

  • Use bitrev8 for bmac, mace, macmace, macsonic, and skfp drivers.

    [akpm@osdl.org: use the API, not the array]
    Cc: Jeff Garzik
    Cc: Paul Mackerras
    Cc: Mirko Lindner
    Cc: Thomas Bogendoerfer
    Signed-off-by: Akinobu Mita
    Signed-off-by: Andrew Morton
    Signed-off-by: Jeff Garzik

    Akinobu Mita
     

05 Oct, 2006

1 commit

  • 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
     

14 Sep, 2006

1 commit


17 Apr, 2005

1 commit

  • 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