From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Boris Pismenny <borisp@mellanox.com>,
Matan Barak <matanb@mellanox.com>,
"Michael J . Ruhl" <michael.j.ruhl@intel.com>,
Or Gerlitz <ogerlitz@mellanox.com>,
Raed Salem <raeds@mellanox.com>,
Yishai Hadas <yishaih@mellanox.com>,
Saeed Mahameed <saeedm@mellanox.com>,
linux-netdev <netdev@vger.kernel.org>
Subject: [PATCH rdma-next v3 06/14] IB/core: Introduce counters read verb
Date: Thu, 31 May 2018 16:43:33 +0300 [thread overview]
Message-ID: <20180531134341.18441-7-leon@kernel.org> (raw)
In-Reply-To: <20180531134341.18441-1-leon@kernel.org>
From: Raed Salem <raeds@mellanox.com>
The user supplies counters instance and a reference to an output
array of uint64_t.
The driver reads the hardware counters values and writes them to
the output index location in the user supplied array.
All counters values are represented as uint64_t types.
To be able to successfully read the data the counters must be
first bound to an IB object.
Downstream patches will present binding method for
flow counters.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
include/rdma/ib_verbs.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 90c548437c8a..ba49e874c841 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2219,6 +2219,17 @@ struct ib_counters {
atomic_t usecnt;
};
+enum ib_read_counters_flags {
+ /* prefer read values from driver cache */
+ IB_READ_COUNTERS_ATTR_PREFER_CACHED = 1 << 0,
+};
+
+struct ib_counters_read_attr {
+ u64 *counters_buff;
+ u32 ncounters;
+ u32 flags; /* use enum ib_read_counters_flags */
+};
+
struct uverbs_attr_bundle;
struct ib_device {
@@ -2493,6 +2504,9 @@ struct ib_device {
struct ib_counters * (*create_counters)(struct ib_device *device,
struct uverbs_attr_bundle *attrs);
int (*destroy_counters)(struct ib_counters *counters);
+ int (*read_counters)(struct ib_counters *counters,
+ struct ib_counters_read_attr *counters_read_attr,
+ struct uverbs_attr_bundle *attrs);
/**
* rdma netdev operation
--
2.14.3
next prev parent reply other threads:[~2018-05-31 13:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 13:43 [PATCH rdma-next v3 00/14] Verbs flow counters support Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 01/14] IB/uverbs: Add an ib_uobject getter to ioctl() infrastructure Leon Romanovsky
2018-05-31 13:43 ` [PATCH mlx5-next v3 02/14] net/mlx5: Use flow counter pointer as input to the query function Leon Romanovsky
2018-05-31 13:43 ` [PATCH mlx5-next v3 03/14] net/mlx5: Export flow counter related API Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 04/14] IB/core: Introduce counters object and its create/destroy Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 05/14] IB/uverbs: Add create/destroy counters support Leon Romanovsky
2018-06-01 20:54 ` Jason Gunthorpe
2018-06-02 5:05 ` Leon Romanovsky
2018-05-31 13:43 ` Leon Romanovsky [this message]
2018-05-31 13:43 ` [PATCH rdma-next v3 07/14] IB/uverbs: Add read " Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 08/14] IB/core: Support passing uhw for create_flow Leon Romanovsky
2018-05-31 14:42 ` Ruhl, Michael J
2018-05-31 15:09 ` Yishai Hadas
2018-05-31 13:43 ` [PATCH rdma-next v3 09/14] IB/core: Add support for flow counters Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 10/14] IB/uverbs: " Leon Romanovsky
2018-05-31 14:49 ` Ruhl, Michael J
2018-05-31 17:23 ` Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 11/14] IB/mlx5: Add counters create and destroy support Leon Romanovsky
2018-05-31 13:43 ` [PATCH mlx5-next v3 12/14] IB/mlx5: Add flow counters binding support Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 13/14] IB/mlx5: Add flow counters read support Leon Romanovsky
2018-05-31 13:43 ` [PATCH rdma-next v3 14/14] IB/mlx5: Add " Leon Romanovsky
2018-05-31 16:15 ` [PATCH rdma-next v3 00/14] Verbs flow counters support Yishai Hadas
2018-06-01 21:11 ` Jason Gunthorpe
2018-06-02 5:04 ` Leon Romanovsky
2018-06-04 14:53 ` Jason Gunthorpe
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