From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Yevgeny Kliteynik <kliteyn@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Leon Romanovsky <leonro@mellanox.com>
Subject: [PATCH rdma-next] IB/mlx5: Support flow counters offset for bulk counters
Date: Tue, 29 Oct 2019 07:59:16 +0200 [thread overview]
Message-ID: <20191029055916.7322-1-leon@kernel.org> (raw)
From: Yevgeny Kliteynik <kliteyn@mellanox.com>
Add support for flow steering counters action with
a non-base counter ID (offset) for bulk counters.
When creating a flow counter object, save the bulk value.
This value is used when a flow action with a non-base
counter ID is requested - to validate that the required
offset is in the range of the allocated bulk.
Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/mlx5/devx.c | 12 ++++++++-
drivers/infiniband/hw/mlx5/flow.c | 34 ++++++++++++++++++++++--
drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 +-
include/uapi/rdma/mlx5_user_ioctl_cmds.h | 1 +
4 files changed, 45 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 6b1fca91d7d3..3900fcb1ccaf 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -100,6 +100,7 @@ struct devx_obj {
struct mlx5_ib_devx_mr devx_mr;
struct mlx5_core_dct core_dct;
struct mlx5_core_cq core_cq;
+ u32 flow_counter_bulk_size;
};
struct list_head event_sub; /* holds devx_event_subscription entries */
};
@@ -192,7 +193,7 @@ bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
}
}
-bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id)
+bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id, u32 *bulk_size)
{
struct devx_obj *devx_obj = obj;
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
@@ -201,6 +202,7 @@ bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id)
*counter_id = MLX5_GET(dealloc_flow_counter_in,
devx_obj->dinbox,
flow_counter_id);
+ *bulk_size = devx_obj->flow_counter_bulk_size;
return true;
}
@@ -1463,6 +1465,14 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
if (err)
goto obj_free;
+ if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) {
+ u8 bulk = MLX5_GET(alloc_flow_counter_in,
+ cmd_in,
+ flow_counter_bulk);
+ if (bulk)
+ obj->flow_counter_bulk_size = 64UL << ffs(bulk);
+ }
+
uobj->object = obj;
INIT_LIST_HEAD(&obj->event_sub);
obj->ib_dev = dev;
diff --git a/drivers/infiniband/hw/mlx5/flow.c b/drivers/infiniband/hw/mlx5/flow.c
index b198ff10cde9..05637039bcd7 100644
--- a/drivers/infiniband/hw/mlx5/flow.c
+++ b/drivers/infiniband/hw/mlx5/flow.c
@@ -85,6 +85,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata);
int len, ret, i;
u32 counter_id = 0;
+ u32 bulk_size = 0;
+ u32 *offset;
if (!capable(CAP_NET_RAW))
return -EPERM;
@@ -151,8 +153,32 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
if (len) {
devx_obj = arr_flow_actions[0]->object;
- if (!mlx5_ib_devx_is_flow_counter(devx_obj, &counter_id))
+ if (!mlx5_ib_devx_is_flow_counter(devx_obj,
+ &counter_id,
+ &bulk_size))
return -EINVAL;
+
+ if (uverbs_attr_is_valid(
+ attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET)) {
+ int num_offsets = uverbs_attr_ptr_get_array_size(
+ attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
+ sizeof(uint32_t));
+
+ if (num_offsets != 1)
+ return -EINVAL;
+
+ offset = uverbs_attr_get_alloced_ptr(
+ attrs,
+ MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET);
+
+ if (*offset && *offset >= bulk_size)
+ return -EINVAL;
+
+ counter_id += *offset;
+ }
+
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
}
@@ -598,7 +624,11 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_IDRS_ARR(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_READ, 1, 1,
- UA_OPTIONAL));
+ UA_OPTIONAL),
+ UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
+ UVERBS_ATTR_MIN_SIZE(sizeof(uint32_t)),
+ UA_OPTIONAL,
+ UA_ALLOC_AND_COPY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
MLX5_IB_METHOD_DESTROY_FLOW,
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 0bdb8b45ea15..0fb58ecccb7e 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1367,7 +1367,7 @@ struct mlx5_ib_flow_handler *mlx5_ib_raw_fs_rule_add(
struct mlx5_flow_act *flow_act, u32 counter_id,
void *cmd_in, int inlen, int dest_id, int dest_type);
bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type);
-bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id);
+bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id, u32 *bulk_size);
int mlx5_ib_get_flow_trees(const struct uverbs_object_tree_def **root);
void mlx5_ib_destroy_flow_action_raw(struct mlx5_ib_flow_action *maction);
#else
diff --git a/include/uapi/rdma/mlx5_user_ioctl_cmds.h b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
index d0da070cf0ab..20d88307f75f 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_cmds.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
@@ -198,6 +198,7 @@ enum mlx5_ib_create_flow_attrs {
MLX5_IB_ATTR_CREATE_FLOW_ARR_FLOW_ACTIONS,
MLX5_IB_ATTR_CREATE_FLOW_TAG,
MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
+ MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
};
enum mlx5_ib_destoy_flow_attrs {
--
2.20.1
next reply other threads:[~2019-10-29 5:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 5:59 Leon Romanovsky [this message]
2019-10-29 6:48 ` [PATCH rdma-next] IB/mlx5: Support flow counters offset for bulk counters Mark Bloch
2019-10-29 7:42 ` Leon Romanovsky
2019-10-29 11:57 ` Yevgeny Kliteynik
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