The new function pci_enable_msi_block_auto() tries to allocate
maximum possible number of MSIs up to the number the device
supports. It generalizes a pattern when pci_enable_msi_block()
is contiguously called until it succeeds or fails.

Opposite to pci_enable_msi_block() which takes the number of
MSIs to allocate as a input parameter,
pci_enable_msi_block_auto() could be used by device drivers to
obtain the number of assigned MSIs and the number of MSIs the
device supports.
Signed-off-by: NAlexander Gordeev <agordeev@redhat.com>
Acked-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/c3de2419df94a0f95ca1a6f755afc421486455e6.1353324359.git.agordeev@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

... as per Randy Dunlap's wishes :-P
Message-Id: <20110717114023.2b4cce91.rdunlap@xenotime.net>
Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Signed-off-by: NMichael Witten <mfwitten@gmail.com>
Acked-by: NMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>

Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: NLucas De Marchi <lucas.demarchi@profusion.mobi>

Encourage driver writers to think about supporting a variable number
of MSI-X interrupts, and give an example of how to do such a
request.
Acked-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Add the new API pci_enable_msi_block() to allow drivers to
request multiple MSI and reimplement pci_enable_msi in terms of
pci_enable_msi_block.  Ensure that the architecture back ends don't
have to know about multiple MSI.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

I didn't find the previous version very useful, so I rewrote it.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Reviewed-by: NRandy Dunlap <randy.dunlap@oracle.com>
Reviewed-by: NGrant Grundler <grundler@parisc-linunx.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Create Documentation/blockdev/ sub-directory and populate it.
Populate the Documentation/serial/ sub-directory.
Move MSI-HOWTO.txt to Documentation/PCI/.
Move ioctl-number.txt to Documentation/ioctl/.
Update all relevant 00-INDEX files.
Update all relevant Kconfig files and source files.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>

The current MSI-HOWTO.txt says that device drivers should not request the
memory space that contains MSI-X tables.  This is because the original
MSI-X implementation did a request_mem_region() on this space, but that
code was removed long ago (in the pre-git era, in fact).  Years after the
code was changed, we might as well clean up the documention to avoid a
confusing mention of requesting regions: drivers using MSI-X can just use
pci_request_regions() just like any other driver, and so there's no need
for MSI-HOWTO.txt to talk about this at all.
Signed-off-by: NRoland Dreier <roland@digitalvampire.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

The MSI vector reservation system described in Documentation/MSI-HOWTO.txt
was removed by Eric in 92db6d10. Remove
the references to it in the documentation.

While we're here § 5.5.1 refers to x86 hardware requirements, so make that
clear.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Fix various typos in kernel docs and Kconfigs, 2.6.21-rc4.
Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

This patch fixes typos in various Documentation txts. The patch addresses some
+words starting with the letters 'U-Z'.

Looks like I made it through the alphabet...just in time to start over again
+too!  Maybe I can fit more profound fixes into the next round...?  Time will
+tell. :)
Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Update MSI-HOWTO.txt according to pci_msi_supported().
Signed-off-by: NBrice Goglin <brice@myri.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'Q'-'R'.
Signed-off-by: NMatt LaPlante <kernel1@cyberdogtech.com>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAdrian Bunk <bunk@stusta.de>

Clean up typos, kernel function interfaces, acronyms, add whitespace,
improve readability.
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The attached patch fixes the following spelling errors in Documentation/
        - double "the"
        - Several misspellings of function/functionality
        - infomation
        - memeory
        - Recieved
        - wether
and possibly others which I forgot ;-)
Trailing whitespaces on the same line as the typo are also deleted.
Signed-off-by: NTobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: NDomen Puncer <domen@coderock.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

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!