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  1. 22 4月, 2017 2 次提交
  3. 21 4月, 2017 3 次提交
  5. 06 4月, 2017 4 次提交
    • M
      IB/core: Add support for fd objects · cf8966b3
      由 Matan Barak 提交于 
      The completion channel we use in verbs infrastructure is FD based.
Previously, we had a separate way to manage this object. Since we
strive for a single way to manage any kind of object in this
infrastructure, we conceptually treat all objects as subclasses
of ib_uobject.

This commit adds the necessary mechanism to support FD based objects
like their IDR counterparts. FD objects release need to be synchronized
with context release. We use the cleanup_mutex on the uverbs_file for
that.
Signed-off-by: NMatan Barak <matanb@mellanox.com>
Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      cf8966b3
    • M
      IB/core: Change idr objects to use the new schema · fd3c7904
      由 Matan Barak 提交于 
      This changes only the handlers which deals with idr based objects to
use the new idr allocation, fetching and destruction schema.
This patch consists of the following changes:
(1) Allocation, fetching and destruction is done via idr ops.
(2) Context initializing and release is done through
    uverbs_initialize_ucontext and uverbs_cleanup_ucontext.
(3) Ditching the live flag. Mostly, this is pretty straight
    forward. The only place that is a bit trickier is in
    ib_uverbs_open_qp. Commit [1] added code to check whether
    the uobject is already live and initialized. This mostly
    happens because of a race between open_qp and events.
    We delayed assigning the uobject's pointer in order to
    eliminate this race without using the live variable.

[1] commit a040f95d
	("IB/core: Fix XRC race condition in ib_uverbs_open_qp")
Signed-off-by: NMatan Barak <matanb@mellanox.com>
Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      fd3c7904
    • M
      IB/core: Add support for idr types · 38321256
      由 Matan Barak 提交于 
      The new ioctl infrastructure supports driver specific objects.
Each such object type has a hot unplug function, allocation size and
an order of destruction.

When a ucontext is created, a new list is created in this ib_ucontext.
This list contains all objects created under this ib_ucontext.
When a ib_ucontext is destroyed, we traverse this list several time
destroying the various objects by the order mentioned in the object
type description. If few object types have the same destruction order,
they are destroyed in an order opposite to their creation.

Adding an object is done in two parts.
First, an object is allocated and added to idr tree. Then, the
command's handlers (in downstream patches) could work on this object
and fill in its required details.
After a successful command, the commit part is called and the user
objects become ucontext visible. If the handler failed, alloc_abort
should be called.

Removing an uboject is done by calling lookup_get with the write flag
and finalizing it with destroy_commit. A major change from the previous
code is that we actually destroy the kernel object itself in
destroy_commit (rather than just the uobject).

We should make sure idr (per-uverbs-file) and list (per-ucontext) could
be accessed concurrently without corrupting them.
Signed-off-by: NMatan Barak <matanb@mellanox.com>
Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      38321256
    • M
      IB/core: Refactor idr to be per uverbs_file · 771addf6
      由 Matan Barak 提交于 
      The current code creates an idr per type. Since types are currently
common for all drivers and known in advance, this was good enough.
However, the proposed ioctl based infrastructure allows each driver
to declare only some of the common types and declare its own specific
types.

Thus, we decided to implement idr to be per uverbs_file.
Signed-off-by: NMatan Barak <matanb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NHaggai Eran <haggaie@mellanox.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      771addf6
  7. 25 3月, 2017 1 次提交
  9. 15 2月, 2017 7 次提交
  11. 14 2月, 2017 1 次提交
  13. 28 1月, 2017 1 次提交
  15. 25 1月, 2017 6 次提交
  17. 13 1月, 2017 1 次提交
  19. 11 1月, 2017 1 次提交
    • P
      IB/core: added support to use rdma cgroup controller · 43579b5f
      由 Parav Pandit 提交于 
      Added support APIs for IB core to register/unregister every IB/RDMA
device with rdma cgroup for tracking rdma resources.
IB core registers with rdma cgroup controller.
Added support APIs for uverbs layer to make use of rdma controller.
Added uverbs layer to perform resource charge/uncharge functionality.
Added support during query_device uverb operation to ensure it
returns resource limits by honoring rdma cgroup configured limits.
Signed-off-by: NParav Pandit <pandit.parav@gmail.com>
Signed-off-by: NTejun Heo <tj@kernel.org>
      43579b5f
  21. 25 12月, 2016 1 次提交
  23. 14 12月, 2016 6 次提交
  25. 17 11月, 2016 1 次提交
  27. 08 10月, 2016 5 次提交