50bea5c0d583e255e3d8a193f8b20e177bac8ec8 |
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08-May-2013 |
Andrew Morton <akpm@linux-foundation.org> |
drivers/infiniband/hw: rename random32() to prandom_u32() Use preferable function name which implies using a pseudo-random number generator. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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cc529c0d72bd2490801ce324caf2ea0a0c1d7b1e |
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04-Mar-2013 |
Akinobu Mita <akinobu.mita@gmail.com> |
RDMA: Rename random32() to prandom_u32() Use more preferable function name which implies using a pseudo-random number generator. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Cc: Roland Dreier <roland@kernel.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Steve Wise <swise@chelsio.com> Cc: linux-rdma@vger.kernel.org Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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9842c38e917636fa7dc6b88aff17a8f1fd7f0cc0 |
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21-Dec-2009 |
Stefani Seibold <stefani@seibold.net> |
kfifo: fix warn_unused_result Fix the "ignoring return value of '...', declared with attribute warn_unused_result" compiler warning in several users of the new kfifo API. It removes the __must_check attribute from kfifo_in() and kfifo_in_locked() which must not necessary performed. Fix the allocation bug in the nozomi driver file, by moving out the kfifo_alloc from the interrupt handler into the probe function. Fix the kfifo_out() and kfifo_out_locked() users to handle a unexpected end of fifo. Signed-off-by: Stefani Seibold <stefani@seibold.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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7acd72eb85f1c7a15e8b5eb554994949241737f1 |
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21-Dec-2009 |
Stefani Seibold <stefani@seibold.net> |
kfifo: rename kfifo_put... into kfifo_in... and kfifo_get... into kfifo_out... rename kfifo_put... into kfifo_in... to prevent miss use of old non in kernel-tree drivers ditto for kfifo_get... -> kfifo_out... Improve the prototypes of kfifo_in and kfifo_out to make the kerneldoc annotations more readable. Add mini "howto porting to the new API" in kfifo.h Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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e64c026dd09b73faf20707711402fc5ed55a8e70 |
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21-Dec-2009 |
Stefani Seibold <stefani@seibold.net> |
kfifo: cleanup namespace change name of __kfifo_* functions to kfifo_*, because the prefix __kfifo should be reserved for internal functions only. Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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c1e13f25674ed564948ecb7dfe5f83e578892896 |
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21-Dec-2009 |
Stefani Seibold <stefani@seibold.net> |
kfifo: move out spinlock Move the pointer to the spinlock out of struct kfifo. Most users in tree do not actually use a spinlock, so the few exceptions now have to call kfifo_{get,put}_locked, which takes an extra argument to a spinlock. Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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45465487897a1c6d508b14b904dc5777f7ec7e04 |
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21-Dec-2009 |
Stefani Seibold <stefani@seibold.net> |
kfifo: move struct kfifo in place This is a new generic kernel FIFO implementation. The current kernel fifo API is not very widely used, because it has to many constrains. Only 17 files in the current 2.6.31-rc5 used it. FIFO's are like list's a very basic thing and a kfifo API which handles the most use case would save a lot of development time and memory resources. I think this are the reasons why kfifo is not in use: - The API is to simple, important functions are missing - A fifo can be only allocated dynamically - There is a requirement of a spinlock whether you need it or not - There is no support for data records inside a fifo So I decided to extend the kfifo in a more generic way without blowing up the API to much. The new API has the following benefits: - Generic usage: For kernel internal use and/or device driver. - Provide an API for the most use case. - Slim API: The whole API provides 25 functions. - Linux style habit. - DECLARE_KFIFO, DEFINE_KFIFO and INIT_KFIFO Macros - Direct copy_to_user from the fifo and copy_from_user into the fifo. - The kfifo itself is an in place member of the using data structure, this save an indirection access and does not waste the kernel allocator. - Lockless access: if only one reader and one writer is active on the fifo, which is the common use case, no additional locking is necessary. - Remove spinlock - give the user the freedom of choice what kind of locking to use if one is required. - Ability to handle records. Three type of records are supported: - Variable length records between 0-255 bytes, with a record size field of 1 bytes. - Variable length records between 0-65535 bytes, with a record size field of 2 bytes. - Fixed size records, which no record size field. - Preserve memory resource. - Performance! - Easy to use! This patch: Since most users want to have the kfifo as part of another object, reorganize the code to allow including struct kfifo in another data structure. This requires changing the kfifo_alloc and kfifo_init prototypes so that we pass an existing kfifo pointer into them. This patch changes the implementation and all existing users. [akpm@linux-foundation.org: fix warning] Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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0e9913362a967377eb886bbdf305ec58aa07a878 |
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07-May-2008 |
Roland Dreier <rolandd@cisco.com> |
RDMA/cxgb3: Don't add PBL memory to gen_pool in chunks Current iw_cxgb3 code adds PBL memory to the driver's gen_pool in 2 MB chunks. This limits the largest single allocation that can be done to the same size, which means that with 4 KB pages, each of which takes 8 bytes of PBL memory, the largest memory region that can be allocated is 1 GB (256K PBL entries * 4 KB/entry). Remove this limit by adding all the PBL memory in a single gen_pool chunk, if possible. Add code that falls back to smaller chunks if gen_pool_add() fails, which can happen if there is not sufficient contiguous lowmem for the internal gen_pool bitmap. Signed-off-by: Roland Dreier <rolandd@cisco.com>
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3371836383d63b627b228875f5ac63023cbf11d2 |
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17-Apr-2008 |
Harvey Harrison <harvey.harrison@gmail.com> |
IB: Replace remaining __FUNCTION__ occurrences with __func__ __FUNCTION__ is gcc-specific, use __func__ instead. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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2b540355cd2f46c5445030995e72c4b4fb2b775e |
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21-Feb-2007 |
Adrian Bunk <bunk@stusta.de> |
RDMA/cxgb3: cleanups - don't mark static functions in C files as inline - gcc should know best whether inlining makes sense - never compile the unused cxio_dbg.c - make the following needlessly global functions static: - cxio_hal.c: cxio_hal_clear_qp_ctx() - iwch_provider.c: iwch_get_qp() - remove the following unused global functions: - cxio_hal.c: cxio_allocate_stag() - cxio_resource.: cxio_hal_get_rhdl() - cxio_resource.: cxio_hal_put_rhdl() Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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c52daa29760818772ee4211be4ee8d1c78b888d5 |
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15-Feb-2007 |
Steve Wise <swise@opengridcomputing.com> |
RDMA/cxgb3: Remove Open Grid Computing copyrights in iw_cxgb3 driver Remove the Open Grid Computing copyright. It shouldn't be there. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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b038ced7b3705bf0ac9b30e118af0f56ab48b847 |
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13-Feb-2007 |
Steve Wise <swise@opengridcomputing.com> |
RDMA/cxgb3: Add driver for Chelsio T3 RNIC Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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