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IB/mlx5: Support flow counters offset for bulk counters
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. Link: https://lore.kernel.org/r/20191103140723.77411-1-leon@kernel.org Signed-off-by: Yevgeny Kliteynik <kliteyn@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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parent
e26e7b88f6
commit
208d70f562
4 changed files with 43 additions and 4 deletions
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@ -100,6 +100,7 @@ struct devx_obj {
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struct mlx5_ib_devx_mr devx_mr;
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struct mlx5_core_dct core_dct;
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struct mlx5_core_cq core_cq;
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u32 flow_counter_bulk_size;
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};
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struct list_head event_sub; /* holds devx_event_subscription entries */
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};
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@ -192,15 +193,20 @@ bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
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}
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}
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bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id)
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bool mlx5_ib_devx_is_flow_counter(void *obj, u32 offset, u32 *counter_id)
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{
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struct devx_obj *devx_obj = obj;
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u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
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if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) {
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if (offset && offset >= devx_obj->flow_counter_bulk_size)
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return false;
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*counter_id = MLX5_GET(dealloc_flow_counter_in,
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devx_obj->dinbox,
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flow_counter_id);
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*counter_id += offset;
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return true;
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}
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@ -1463,6 +1469,13 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
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if (err)
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goto obj_free;
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if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) {
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u8 bulk = MLX5_GET(alloc_flow_counter_in,
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cmd_in,
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flow_counter_bulk);
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obj->flow_counter_bulk_size = 128UL * bulk;
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}
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uobj->object = obj;
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INIT_LIST_HEAD(&obj->event_sub);
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obj->ib_dev = dev;
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@ -85,6 +85,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
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struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata);
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int len, ret, i;
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u32 counter_id = 0;
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u32 *offset_attr;
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u32 offset = 0;
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if (!capable(CAP_NET_RAW))
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return -EPERM;
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@ -151,8 +153,27 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
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if (len) {
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devx_obj = arr_flow_actions[0]->object;
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if (!mlx5_ib_devx_is_flow_counter(devx_obj, &counter_id))
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if (uverbs_attr_is_valid(attrs,
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MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET)) {
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int num_offsets = uverbs_attr_ptr_get_array_size(
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attrs,
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MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
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sizeof(u32));
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if (num_offsets != 1)
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return -EINVAL;
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offset_attr = uverbs_attr_get_alloced_ptr(
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attrs,
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MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET);
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offset = *offset_attr;
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}
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if (!mlx5_ib_devx_is_flow_counter(devx_obj, offset,
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&counter_id))
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return -EINVAL;
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flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
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}
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@ -598,7 +619,11 @@ DECLARE_UVERBS_NAMED_METHOD(
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UVERBS_ATTR_IDRS_ARR(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
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MLX5_IB_OBJECT_DEVX_OBJ,
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UVERBS_ACCESS_READ, 1, 1,
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UA_OPTIONAL));
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UA_OPTIONAL),
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UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
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UVERBS_ATTR_MIN_SIZE(sizeof(u32)),
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UA_OPTIONAL,
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UA_ALLOC_AND_COPY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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MLX5_IB_METHOD_DESTROY_FLOW,
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@ -1366,7 +1366,7 @@ struct mlx5_ib_flow_handler *mlx5_ib_raw_fs_rule_add(
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struct mlx5_flow_act *flow_act, u32 counter_id,
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void *cmd_in, int inlen, int dest_id, int dest_type);
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bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type);
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bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id);
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bool mlx5_ib_devx_is_flow_counter(void *obj, u32 offset, u32 *counter_id);
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int mlx5_ib_get_flow_trees(const struct uverbs_object_tree_def **root);
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void mlx5_ib_destroy_flow_action_raw(struct mlx5_ib_flow_action *maction);
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#else
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@ -198,6 +198,7 @@ enum mlx5_ib_create_flow_attrs {
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MLX5_IB_ATTR_CREATE_FLOW_ARR_FLOW_ACTIONS,
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MLX5_IB_ATTR_CREATE_FLOW_TAG,
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MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
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MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
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};
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enum mlx5_ib_destoy_flow_attrs {
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