Commit Graph

85392 Commits

Author SHA1 Message Date
David S. Miller 9ab8273606 [SPARC]: Merge include/asm-sparc{,64}/auxvec.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 04:00:03 -08:00
David S. Miller 75b2a0254d [SPARC]: Merge include/asm-sparc{,64}/of_device.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:58:32 -08:00
David S. Miller 97b4872c8d [SPARC]: Merge include/asm-sparc{,64}/prom.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:56:20 -08:00
Stephen Rothwell 7b98ac24ef [SPARC]: Remove of_platform_device_create
There are no callers of this on the Sparc platforms.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:49:58 -08:00
Stephen Hemminger 268bcca1e7 [PKT_SCHED] ematch: oops from uninitialized variable (resend)
Setting up a meta match causes a kernel OOPS because of uninitialized
elements in tree.

[   37.322381] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[   37.322381] IP: [<ffffffff883fc717>] :em_meta:em_meta_destroy+0x17/0x80

[   37.322381] Call Trace:
[   37.322381]  [<ffffffff803ec83d>] tcf_em_tree_destroy+0x2d/0xa0
[   37.322381]  [<ffffffff803ecc8c>] tcf_em_tree_validate+0x2dc/0x4a0
[   37.322381]  [<ffffffff803f06d2>] nla_parse+0x92/0xe0
[   37.322381]  [<ffffffff883f9672>] :cls_basic:basic_change+0x202/0x3c0
[   37.322381]  [<ffffffff802a3917>] kmem_cache_alloc+0x67/0xa0
[   37.322381]  [<ffffffff803ea221>] tc_ctl_tfilter+0x3b1/0x580
[   37.322381]  [<ffffffff803dffd0>] rtnetlink_rcv_msg+0x0/0x260
[   37.322381]  [<ffffffff803ee944>] netlink_rcv_skb+0x74/0xa0
[   37.322381]  [<ffffffff803dffc8>] rtnetlink_rcv+0x18/0x20
[   37.322381]  [<ffffffff803ee6c3>] netlink_unicast+0x263/0x290
[   37.322381]  [<ffffffff803cf276>] __alloc_skb+0x96/0x160
[   37.322381]  [<ffffffff803ef014>] netlink_sendmsg+0x274/0x340
[   37.322381]  [<ffffffff803c7c3b>] sock_sendmsg+0x12b/0x140
[   37.322381]  [<ffffffff8024de90>] autoremove_wake_function+0x0/0x30
[   37.322381]  [<ffffffff8024de90>] autoremove_wake_function+0x0/0x30
[   37.322381]  [<ffffffff803c7c3b>] sock_sendmsg+0x12b/0x140
[   37.322381]  [<ffffffff80288611>] zone_statistics+0xb1/0xc0
[   37.322381]  [<ffffffff803c7e5e>] sys_sendmsg+0x20e/0x360
[   37.322381]  [<ffffffff803c7411>] sockfd_lookup_light+0x41/0x80
[   37.322381]  [<ffffffff8028d04b>] handle_mm_fault+0x3eb/0x7f0
[   37.322381]  [<ffffffff8020c2fb>] system_call_after_swapgs+0x7b/0x80

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:47:19 -08:00
David S. Miller ab1ecbabb1 Merge branch 'pending' of master.kernel.org:/pub/scm/linux/kernel/git/vxy/lksctp-dev 2008-02-09 03:44:25 -08:00
David S. Miller d38f122066 [SPARC64]: Add kretprobe support.
Passes the smoke tests at least, powerpc implementation was used
as a guide.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:42:22 -08:00
David S. Miller 13fa14e185 [SPARC64]: Add SG merging support back into IOMMU code.
Mimicks almost perfectly the powerpc IOMMU code, except that it
doesn't have the IOMMU_PAGE_SIZE != PAGE_SIZE handling, and it also
lacks the device dma mask support bits.

I'll add that later as time permits, but this gets us at least back to
where we were beforehand.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:36 -08:00
David S. Miller d284142cba [SPARC64]: IOMMU allocations using iommu-helper layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:04 -08:00
David S. Miller 19814ea24e [SPARC64]: iommu_common.h tidy ups...
Add missing multiple-include guards and update copyright.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:04 -08:00
David S. Miller 0507468a80 [SPARC64]: Remove unused declarations from iommu_common.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:03 -08:00
Michal Sojka ed2c9fa53b Kbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without-digit>
If CONIFIG_LOCALVERSION is set for example to -loop, the following error
message was generated.

dpkg-deb - error: Debian revision (`loop') doesn't contain any digits
dpkg-deb: 1 errors in control file

The patch solves this by adding a numeric revision to package version.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:51:47 +01:00
Sam Ravnborg ec7748b59e ide: introduce HAVE_IDE
To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.

This is a step towards introducing drivers/Kconfig for arm.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-09 10:46:40 +01:00
Mike Frysinger d75f4c683f kbuild: silence CHK/UPD messages according to $(quiet)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:43:58 +01:00
Sam Ravnborg a3eadd7cb0 scsi: fix makefile for aic7(3*x)
Fix bug introduced by my latest fix to the aic7xxx Makefile.
Test build on x86 32 and 64 bit.
Without and with -j (parallel build)
Building firmaware is br0ken with O=... but this
is unrelated to this bug-fix.

Tested-by: Adrian Bunk <bunk@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:43:58 +01:00
Geert Uytterhoeven 7c0ac495e3 kbuild/modpost: Use warn() for announcing section mismatches
modpost: Use warn() for announcing section mismatches, for easy grepping for
warnings in build logs.

Also change an existing call from fprintf() to warn() while we're at it.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:43:58 +01:00
Uwe Kleine-König ff739b611f Add binoffset to gitignore
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:43:58 +01:00
Sam Ravnborg f666751a0a kbuild/modpost: improve warnings if symbol is unknown
If we cannot determine the symbol then print
(unknown) to hint the reader that we failed to
find the symbol.
This happens with REL relocation records
in arm object files.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-09 10:43:58 +01:00
Len Brown a52500c917 Merge branches 'release', 'wmi' and 'laptop-docs' into release 2008-02-09 04:32:55 -05:00
Len Brown d47b180c26 Merge branches 'release' and 'bugzilla-9910' into release 2008-02-09 04:32:47 -05:00
Len Brown 249d621a85 Merge branches 'release' and 'buildfix' into release 2008-02-09 04:32:40 -05:00
Carlos Corbacho 16111c7979 acer-wmi - Add documentation
Add some initial documentation detailing what acer-wmi is, and how to use
it. Update the Kconfig entry with a reference to the documentation.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:16:07 -05:00
Carlos Corbacho 018a651a9c sonypi - Move sonypi.txt to Documentation/laptops
Also update references to sonypi.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:15:53 -05:00
Carlos Corbacho f04b7c402b sony-laptop - Move sony-laptop.txt to Documentation/laptops
Also update references to sony-laptop.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:15:40 -05:00
Carlos Corbacho f191dc6b55 thinkpad-acpi - Move thinkpad-acpi.txt to Documentation/laptops
Also update references to thinkpad-acpi.txt in Kconfig.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:15:23 -05:00
Carlos Corbacho d6ff365577 Documentation - Create laptops sub-directory
There are currently various laptop drivers floating about with no central
place for their documentation, which is currently scattered around the top
level Documentation/ directory.

So, as a first step, lets create a Documentation sub-directory, and update
the relevant index files. The work of then moving the existing laptop
driver related documentation will then be handled later.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:14:59 -05:00
Len Brown a0dd25b2c8 ACPI: thermal: buildfix for CONFIG_THERMAL=n
This fixes the build, but acpi_fan_add() still needs
to be updated to handle thermal_cooling_device_register()
returning NULL as a non-fatal condition.

Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 04:01:48 -05:00
Venki Pallipadi a6869cc4cf cpuidle: build fix for non-x86
The last posted version of this patch gave compile error
on IA64. So, here goes yet another rewrite of the patch.

Convert cpu_idle_wait() to cpuidle_kick_cpus() which is
SMP-only, and gives error on non supported CPU.

Changes from last patch sent by Kevin:
Moved the definition of kick_cpus back to cpuidle.c from cpuidle.h:
* Having it in .h gives #error on archs which includes the header file without
  actually having CPU_IDLE configured. To make it work in .h, we need one more
  #ifdef around that code which makes it messy.
* Also, the function is only called from one file. So, it can be in declared
  statically in .c rather than making it available to everyone who includes
  the .h file.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 03:33:40 -05:00
Carlos Corbacho 4609d029aa acer-wmi: Fix backlight on AMW0 (V1) laptops
There is some leftover cruft from the old quirk infrastructure that causes
us to be unable to set the backlight on older laptops.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 03:29:33 -05:00
Carlos Corbacho b013682919 tc1100-wmi: Mark as experimental
tc1100-wmi has not undergone as much testing as acer-wmi, so it certainly
should be marked as experimental as well until we get more user feedback.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 03:29:04 -05:00
Alexey Starikovskiy bbafbecb24 ACPI: SBS: Host controller must initialize before SBS.
In static case sbshc must be compiled ahead of sbs, so that
hc is configured first.

http://bugzilla.kernel.org/show_bug.cgi?id=9910

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-09 03:22:13 -05:00
Mart Raudsepp 641f43669f [MTD] [NAND] cs553x_nand: command line partitioning support
Implements kernel command line partitioning support for the CS5535/CS5536 chipsets driver.

For that the following is done:

* cs553x_cleanup(): try the cleanup for all chip selects to not leak memory
* Assign a unique name for each chip select to be separately addressable in the command line mtd-id portion(s)
* Use the already defined PIN_OPT_IDE constant where appropriate for readability
* Include command line partitioning support when CONFIG_MTD_PARTS is set

Signed-off-by: Mart Raudsepp <mart.raudsepp@artecdesign.ee>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-09 08:21:31 +00:00
Nick Piggin b1d0e4f535 mm: special mapping nopage
Convert special mapping install from nopage to fault.

Because the "vm_file" is NULL for the special mapping, the generic VM
code has messed up "vm_pgoff" thinking that it's an anonymous mapping
and the offset does't matter.  For that reason, we need to undo the
vm_pgoff offset that got added into vmf->pgoff.

[ We _really_ should clean that up - either by making this whole special
  mapping code just use a real file entry rather than that ugly array of
  "struct page" pointers, or by just making the VM code realize that
  even if vm_file is NULL it may not be a regular anonymous mmap.
							 - Linus ]

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 18:57:39 -08:00
Linus Torvalds 6a306e8b4c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix large MCA bootmem allocation
  [IA64] Simplify cpu_idle_wait
  [IA64] Synchronize RBS on PTRACE_ATTACH
  [IA64] Synchronize kernel RSE to user-space and back
  [IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME
  [IA64] Wire up timerfd_{create,settime,gettime} syscalls
2008-02-08 15:40:28 -08:00
Ingo Molnar 3bf8f5a92c x86: fix pgtable_t build breakage
Commit 2f569afd9c ("CONFIG_HIGHPTE vs.
sub-page page tables") caused some build breakage due to pgtable_t only
getting declared in the CONFIG_X86_PAE case.

Move the declaration outside the PAE section.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:37:13 -08:00
Linus Torvalds f0e2dcffae Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Remove unused struct ib_device.flags member
  IB/core: Add IP checksum offload support
  IPoIB: Add send gather support
  IPoIB: Add high DMA feature flag
  IB/mlx4: Use multiple WQ blocks to post smaller send WQEs
  mlx4_core: Clean up struct mlx4_buf
  mlx4_core: For 64-bit systems, vmap() kernel queue buffers
  IB/mlx4: Consolidate code to get an entry from a struct mlx4_buf
2008-02-08 15:34:26 -08:00
Linus Torvalds 04a94babd6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (24 commits)
  [Blackfin] arch: import defines for BF547 -- it is just like the BF548, but no CAN
  [Blackfin] arch: fix build fails only include header files when enabled
  [Blackfin] arch: declare default INSTALL_PATH for Blackfin ports
  [Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support
  [Blackfin] arch: Enable UART2 and UART3 for bf548
  [Blackfin] arch: Enable NET2272 on BF561-EZkit - remove request_mem_region
  [Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show complete info
  [Blackfin] arch: remove duplicated definitions of the line discipline numbers N_* in asm-blackfin/termios.h
  [Blackfin] arch: fix building with mtd uclinux by putting the mtd_phys option into the function it actually gets used in
  [Blackfin] arch: simpler header and update dates
  [Blackfin] arch: move the init sections to the end of memory
  [Blackfin] arch: change the trace buffer control start/stop logic in the exception handlers
  [Blackfin] arch: fix typo in printk message
  [Blackfin] arch: this is an ezkit, not a stamp, so fixup the init function name
  [Blackfin] arch: add slightly better help text for CPLB_INFO
  [Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
  [Blackfin] arch: Fix header file information
  [Blackfin] arch: Add Support for ISP1362
  [Blackfin] arch: add support for cmdline partitioning to the BF533-STAMP flash map driver and enable it as a module by default
  [Blackfin] arch: hook up set_irq_wake in Blackfin's irq code
  ...
2008-02-08 15:33:45 -08:00
Kay Sievers 765cdb6cef DCA: convert struct class_device to struct device.
Thanks to Kay for keeping us honest.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:33 -08:00
Alan Cox 11b0cc3a4a x25_asy: Fix ref count rule violation
x25_asy does not take an ldisc reference before calling the flush method.
Fix it to use the helper function we provide.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:33 -08:00
Guennadi Liakhovetski 4600ecfcf3 lib/scatterlist.o needed by a module only - link it in unconditionally
lib/scatterlist.c is needed by drivers/media/video/videobuf-dma-sg.c, and
we would like to be able to use the latter without PCI too, for example, on
PXA270 ARM CPU.  It is then possible to create a configuration with
CONFIG_BLOCK=n, where only module code will need scatterlist.c.  Therefore
it must be in obj-y.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:33 -08:00
Adrian Bunk 3a984a8505 fix xtensa timerfd breakage
In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/xtensa/kernel/syscall.c:39:
include2/asm/unistd.h:681: error: 'sys_timerfd' undeclared here (not in a function)

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Christian Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:32 -08:00
Mathieu Desnoyers 6784fd5931 Fix FRV cmpxchg_local
Fix the FRV cmpxchg_local by breaking the following header dependency loop :

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h
  -> asm-frv/system.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

and

linux/kernel.h -> linux/bitops.h -> asm-frv/bitops.h -> asm-frv/atomic.h ->
  asm-generic/cmpxchg_local.h -> typecheck() defined in linux/kernel.h

In order to fix this :
- Move the atomic_test_and_ *_mask inlines from asm-frv/atomic.h (why are they
  there at all anyway ? They are not touching atomic_t variables!) to
  asm-frv/bitops.h.

Also fix a build issue with cmpxchg : it does not cast to (unsigned long *)
like other architectures, to deal with it in the cmpxchg_local macro.

FRV builds fine with this patch.

Thanks to Adrian Bunk <bunk@kernel.org> for spotting this bug.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:32 -08:00
Andrew Morton b55fcb22d4 revert "proc: fix the threaded proc self"
Revert commit c6caeb7c45 ("proc: fix the
threaded /proc/self"), since Eric says "The patch really is wrong.
There is at least one corner case in procps that cares."

Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Guillaume Chazarain" <guichaz@yahoo.fr>
Cc: "Pavel Emelyanov" <xemul@openvz.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 15:33:32 -08:00
Roland Dreier 5128bdc97a IB/core: Remove unused struct ib_device.flags member
Avoid confusion about what it might mean, since it's never initialized.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08 14:47:26 -08:00
Eli Cohen e0605d9199 IB/core: Add IP checksum offload support
Add a device capability to show when it can handle checksum offload.
Also add a send flag for inserting checksums and a csum_ok field to
the completion record.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08 14:37:56 -08:00
Eli Cohen 7143740d26 IPoIB: Add send gather support
This patch acts as a preparation for using checksum offload for IB
devices capable of inserting/verifying checksum in IP packets.  The
patch does not actaully turn on NETIF_F_SG - we defer that to the
patches adding checksum offload capabilities.

We only add support for send gathers for datagram mode, since existing
HW does not support checksum offload on connected QPs.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08 14:32:37 -08:00
Eli Cohen eb14032f9e IPoIB: Add high DMA feature flag
All current InfiniBand devices can handle all DMA addresses, and it's
hard to imagine anyone would be silly enough to build a new device
that couldn't.  Therefore, enable the NETIF_F_HIGHDMA feature for IPoIB.

This has no effect for no, but is needed when we enable gather/scatter
support and checksum stateless offloads.

Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08 13:39:26 -08:00
Jack Morgenstein ea54b10c77 IB/mlx4: Use multiple WQ blocks to post smaller send WQEs
ConnectX HCA supports shrinking WQEs, so that a single work request
can be made of multiple units of wqe_shift.  This way, WRs can differ
in size, and do not have to be a power of 2 in size, saving memory and
speeding up send WR posting.  Unfortunately, if we do this then the
wqe_index field in CQEs can't be used to look up the WR ID anymore, so
our implementation does this only if selective signaling is off.

Further, on 32-bit platforms, we can't use vmap() to make the QP
buffer virtually contigious. Thus we have to use constant-sized WRs to
make sure a WR is always fully within a single page-sized chunk.

Finally, we use WRs with the NOP opcode to avoid wrapping around the
queue buffer in the middle of posting a WR, and we set the
NoErrorCompletion bit to avoid getting completions with error for NOP
WRs.  However, NEC is only supported starting with firmware 2.2.232,
so we use constant-sized WRs for older firmware.  And, since MLX QPs
only support SEND, we use constant-sized WRs in this case.

When stamping during NOP posting, do stamping following setting of the
NOP WQE valid bit.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-02-08 13:30:02 -08:00
Russ Anderson 785285fc8b [IA64] Fix large MCA bootmem allocation
The MCA code allocates bootmem memory for NR_CPUS, regardless
of how many cpus the system actually has.  This change allocates
memory only for cpus that actually exist.

On my test system with NR_CPUS = 1024, reserved memory was reduced by 130944k.

Before: Memory: 27886976k/28111168k available (8282k code, 242304k reserved, 5928k data, 1792k init)
After:  Memory: 28017920k/28111168k available (8282k code, 111360k reserved, 5928k data, 1792k init)

Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-02-08 12:01:53 -08:00
Tony Luck 427639354f [IA64] Simplify cpu_idle_wait
This is just Venki's patch[*] for x86 ported to ia64.

* http://marc.info/?l=linux-kernel&m=120249201318159&w=2

Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-02-08 12:01:40 -08:00