| 10e1b54bbb51ac134c51996022f3bd10579fbd3b |
|
18-Jun-2011 |
Bart Van Assche <bvanassche@acm.org> |
RDMA: Allow for NULL .modify_device() and .modify_port() methods
These methods don't make sense for iWARP devices, so rather than
forcing them to implement stubs, just return -ENOSYS in the core if
the hardware driver doesn't set .modify_device and/or .modify_port.
Signed-off-by: Roland Dreier <roland@purestorage.com>
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| b2cbae2c248776d81cc265ff7d48405b6a4cc463 |
|
20-May-2011 |
Roland Dreier <roland@purestorage.com> |
RDMA: Add netlink infrastructure
Add basic RDMA netlink infrastructure that allows for registration of
RDMA clients for which data is to be exported and supplies message
construction callbacks.
Signed-off-by: Nir Muchtar <nirm@voltaire.com>
[ Reorganize a few things, add CONFIG_NET dependency. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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| fd75c789abf7948e16fe50917a6acb809927719a |
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20-May-2011 |
Nir Muchtar <nirm@voltaire.com> |
RDMA: Add error handling to ib_core_init()
Fail RDMA midlayer initialization if sysfs setup fails.
Signed-off-by: Nir Muchtar <nirm@voltaire.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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| f06267104dd9112f11586830d22501d0e26245ea |
|
19-Oct-2010 |
Tejun Heo <tj@kernel.org> |
RDMA: Update workqueue usage
* ib_wq is added, which is used as the common workqueue for infiniband
instead of the system workqueue. All system workqueue usages
including flush_scheduled_work() callers are converted to use and
flush ib_wq.
* cancel_delayed_work() + flush_scheduled_work() converted to
cancel_delayed_work_sync().
* qib_wq is removed and ib_wq is used instead.
This is to prepare for deprecation of flush_scheduled_work().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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| 9a6edb60ec10d86b1025a0cdad68fd89f1ddaf02 |
|
07-May-2010 |
Ralph Campbell <ralph.campbell@qlogic.com> |
IB/core: Allow device-specific per-port sysfs files
Add a new parameter to ib_register_device() so that low-level device
drivers can pass in a pointer to a callback function that will be
called for each port that is registered in sysfs. This allows
low-level device drivers to create files in
/sys/class/infiniband/<hca>/ports/<N>/
without having to poke through the internals of the RDMA sysfs handling.
There is no need for an unregister function since the kobject
reference will go to zero when ib_unregister_device() is called.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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| 9206dff15705267c19f8fed391c4fb95975540a3 |
|
25-Feb-2009 |
Roland Dreier <rolandd@cisco.com> |
IB: Remove sysfs files before unregistering device
Move the ib_device_unregister_sysfs() call from ib_dealloc_device() to
ib_unregister_device(). The old code allows device unregister to
proceed even if some sysfs files are open, which leaves a window where
userspace can open a file before a device is removed but then end up
reading the file after the device is removed, which leads to various
kernel crashes either because the device data structure is freed or
because the low-level driver code is gone after module removal.
By not returning from ib_unregister_device() until after all sysfs
entries are removed, we make sure that data structures and/or module
code is not freed until after all sysfs access is done.
Reported-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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| f3781d2e89f12dd5afa046dc56032af6e39bd116 |
|
15-Jul-2008 |
Roland Dreier <rolandd@cisco.com> |
RDMA: Remove subversion $Id tags
They don't get updated by git and so they're worse than useless.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 65d470b3ea52ee1402499d6fcb4632296452e5b1 |
|
10-Oct-2007 |
Roland Dreier <rolandd@cisco.com> |
IB: find_first_zero_bit() takes unsigned pointer
Fix sparse warning
drivers/infiniband/core/device.c:142:6: warning: incorrect type in argument 1 (different signedness)
drivers/infiniband/core/device.c:142:6: expected unsigned long const *addr
drivers/infiniband/core/device.c:142:6: got long *[assigned] inuse
by making the local variable inuse unsigned. Does not affect generated
code at all.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 36026ecc20e5df722bbe2ea9e451c73d686ef107 |
|
23-Jul-2007 |
Moni Shoua <monisonlists@gmail.com> |
IB/core: Ignore membership bit in ib_find_pkey()
ib_find_pkey() is used as a replacement for ib_find_cached_pkey(), and
the original function ignored the membership bit when searching for a
P_Key, so ib_find_pkey() should ignore the bit too.
In particular, IPoIB turns on the P_Key membership bit of limited
membership P_Keys when creating a child interface and looks for the
full membership P_key. This broke if a port was a partial member of a
partition when IPoIB switched from ib_find_cached_pkey() to
ib_find_pkey(), and this change fixes things again.
Signed-off-by: Moni Shoua <monis@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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| e8edc6e03a5c8562dc70a6d969f732bdb355a7e7 |
|
20-May-2007 |
Alexey Dobriyan <adobriyan@gmail.com> |
Detach sched.h from mm.h
First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.
This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
getting them indirectly
Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
they don't need sched.h
b) sched.h stops being dependency for significant number of files:
on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
after patch it's only 3744 (-8.3%).
Cross-compile tested on
all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
alpha alpha-up
arm
i386 i386-up i386-defconfig i386-allnoconfig
ia64 ia64-up
m68k
mips
parisc parisc-up
powerpc powerpc-up
s390 s390-up
sparc sparc-up
sparc64 sparc64-up
um-x86_64
x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig
as well as my two usual configs.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 1af4c435f3ab9cdf72ce86c35a455c8bef1d6536 |
|
19-May-2007 |
Roland Dreier <rolandd@cisco.com> |
IB/core: Use start_port() and end_port()
Clean up ib_query_port() and ib_modify_port() slightly by using the
just-added start_port() and end_port() helpers.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 5eb620c81ce35aa0c533131bf4d06c4c8c2bfadf |
|
14-May-2007 |
Yosef Etigin <yosefe@voltaire.com> |
IB/core: Add helpers for uncached GID and P_Key searches
Add ib_find_gid() and ib_find_pkey() functions that use uncached device
queries. The calls might block but the returns are always up-to-date.
Cache P_Key and GID table lengths in core to avoid extra port info queries.
Signed-off-by: Yosef Etigin <yosefe@voltaire.com>
Acked-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| f7c6a7b5d59980b076abbf2ceeb8735591290285 |
|
05-Mar-2007 |
Roland Dreier <rolandd@cisco.com> |
IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules
Export ib_umem_get()/ib_umem_release() and put low-level drivers in
control of when to call ib_umem_get() to pin and DMA map userspace,
rather than always calling it in ib_uverbs_reg_mr() before calling the
low-level driver's reg_user_mr method.
Also move these functions to be in the ib_core module instead of
ib_uverbs, so that driver modules using them do not depend on
ib_uverbs.
This has a number of advantages:
- It is better design from the standpoint of making generic code a
library that can be used or overridden by device-specific code as
the details of specific devices dictate.
- Drivers that do not need to pin userspace memory regions do not
need to take the performance hit of calling ib_mem_get(). For
example, although I have not tried to implement it in this patch,
the ipath driver should be able to avoid pinning memory and just
use copy_{to,from}_user() to access userspace memory regions.
- Buffers that need special mapping treatment can be identified by
the low-level driver. For example, it may be possible to solve
some Altix-specific memory ordering issues with mthca CQs in
userspace by mapping CQ buffers with extra flags.
- Drivers that need to pin and DMA map userspace memory for things
other than memory regions can use ib_umem_get() directly, instead
of hacks using extra parameters to their reg_phys_mr method. For
example, the mlx4 driver that is pending being merged needs to pin
and DMA map QP and CQ buffers, but it does not need to create a
memory key for these buffers. So the cleanest solution is for mlx4
to call ib_umem_get() in the create_qp and create_cq methods.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 9a6b090c0d1cd5c90f21db772dbe2fbcf14366de |
|
06-Feb-2007 |
Ahmed S. Darwish <darwish.07@gmail.com> |
IB/core: Use ARRAY_SIZE macro for mandatory_table
Use ARRAY_SIZE() macro already defined in kernel.h instead of open
coding equivalent code.
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 9cd330d36b32ed48d49561b165842db20bd153cc |
|
23-Sep-2006 |
Krishna Kumar <krkumar2@in.ibm.com> |
IB: Fix typo in kerneldoc for ib_set_client_data()
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 07ebafbaaa72aa6a35472879008f5a1d1d469a0c |
|
03-Aug-2006 |
Tom Tucker <tom@opengridcomputing.com> |
RDMA: iWARP Core Changes.
Modifications to the existing rdma header files, core files, drivers,
and ulp files to support iWARP, including:
- Hook iWARP CM into the build system and use it in rdma_cm.
- Convert enum ib_node_type to enum rdma_node_type, which includes
the possibility of RDMA_NODE_RNIC, and update everything for this.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 95ed644fd12f53c6fc778f3f246974e5fe3a9468 |
|
13-Jan-2006 |
Ingo Molnar <mingo@elte.hu> |
IB: convert from semaphores to mutexes
semaphore to mutex conversion by Ingo and Arjan's script.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[ Sanity-checked on real IB hardware ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| de6eb66b56d9df5ce6bd254994f05e065214e8cd |
|
02-Nov-2005 |
Roland Dreier <rolandd@cisco.com> |
[IB] kzalloc() conversions
Replace kmalloc()+memset(,0,) with kzalloc(), for a net savings of 35
source lines and about 500 bytes of text.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 116c0074ecfd6f061570856bec52b691d54dbd3c |
|
03-Oct-2005 |
Roland Dreier <rolandd@cisco.com> |
[IB] Check port number in ib_query_port()/ib_modify_port()
Check port number before passing query_port or modify_port operations
on to device driver.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 2a1d9b7f09aaaacf235656cb32a40ba2c79590b3 |
|
11-Aug-2005 |
Roland Dreier <roland@eddore.topspincom.com> |
[PATCH] IB: Add copyright notices
Make some lawyers happy and add copyright notices for people who
forgot to include them when they actually touched the code.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
|
17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
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!
|