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authorRaed Salem <raeds@mellanox.com>2018-05-31 16:43:31 +0300
committerLeon Romanovsky <leonro@mellanox.com>2018-06-02 07:33:54 +0300
commitfa9b1802d140f4d4a781b3444aadf47fa511cabb (patch)
tree0359ae5d48794348d0230274a112281161f97e2d /include/rdma
parent3efa38125b81fb4eb7dbb43295cb82a203dc0398 (diff)
downloadlinux-fa9b1802d140f4d4a781b3444aadf47fa511cabb.tar.xz
IB/core: Introduce counters object and its create/destroy
A verbs application may need to get statistics and info on various aspects of a verb object (e.g. Flow, QP, ...), in general case the application will state which object's counters its interested in (we refer to this action as attach), bind this new counters object to the appropriate verb object and on later stage read their values using the counters object. This series introduces a general API for counters object that may accumulate any ib object counters type, bound and read on demand. Counters instance is allocated on an IB context and belongs to that context. Upon successful creation the counters can be bound to a verbs object so that hardware counter instances can be created and read. Downstream patches in this series will introduce the attach, bind and the read functionality. Counters instance can be de-allocated, upon successful destruction the related hardware resources are released. Prior to destroy call the user must first make sure that the counters is not being used by any IB object, e.g. not attached to any of its counted type otherwise an EBUSY error is invoked. Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Raed Salem <raeds@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 9fc8a825aa28..4f5d9fd4f920 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2180,6 +2180,13 @@ struct ib_port_pkey_list {
struct list_head pkey_list;
};
+struct ib_counters {
+ struct ib_device *device;
+ struct ib_uobject *uobject;
+ /* num of objects attached */
+ atomic_t usecnt;
+};
+
struct uverbs_attr_bundle;
struct ib_device {
@@ -2451,6 +2458,10 @@ struct ib_device {
struct ib_mr * (*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm,
struct ib_dm_mr_attr *attr,
struct uverbs_attr_bundle *attrs);
+ struct ib_counters * (*create_counters)(struct ib_device *device,
+ struct uverbs_attr_bundle *attrs);
+ int (*destroy_counters)(struct ib_counters *counters);
+
/**
* rdma netdev operation
*