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>
This commit is contained in:
Yevgeny Kliteynik 2019-11-03 16:07:23 +02:00 коммит произвёл Jason Gunthorpe
Родитель e26e7b88f6
Коммит 208d70f562
4 изменённых файлов: 43 добавлений и 4 удалений
drivers/infiniband/hw/mlx5
include/uapi/rdma

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@ -100,6 +100,7 @@ struct devx_obj {
struct mlx5_ib_devx_mr devx_mr; struct mlx5_ib_devx_mr devx_mr;
struct mlx5_core_dct core_dct; struct mlx5_core_dct core_dct;
struct mlx5_core_cq core_cq; struct mlx5_core_cq core_cq;
u32 flow_counter_bulk_size;
}; };
struct list_head event_sub; /* holds devx_event_subscription entries */ struct list_head event_sub; /* holds devx_event_subscription entries */
}; };
@ -192,15 +193,20 @@ 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 offset, u32 *counter_id)
{ {
struct devx_obj *devx_obj = obj; struct devx_obj *devx_obj = obj;
u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode); u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) { if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) {
if (offset && offset >= devx_obj->flow_counter_bulk_size)
return false;
*counter_id = MLX5_GET(dealloc_flow_counter_in, *counter_id = MLX5_GET(dealloc_flow_counter_in,
devx_obj->dinbox, devx_obj->dinbox,
flow_counter_id); flow_counter_id);
*counter_id += offset;
return true; return true;
} }
@ -1463,6 +1469,13 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
if (err) if (err)
goto obj_free; goto obj_free;
if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) {
u8 bulk = MLX5_GET(alloc_flow_counter_in,
cmd_in,
flow_counter_bulk);
obj->flow_counter_bulk_size = 128UL * bulk;
}
uobj->object = obj; uobj->object = obj;
INIT_LIST_HEAD(&obj->event_sub); INIT_LIST_HEAD(&obj->event_sub);
obj->ib_dev = dev; obj->ib_dev = dev;

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@ -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); struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata);
int len, ret, i; int len, ret, i;
u32 counter_id = 0; u32 counter_id = 0;
u32 *offset_attr;
u32 offset = 0;
if (!capable(CAP_NET_RAW)) if (!capable(CAP_NET_RAW))
return -EPERM; return -EPERM;
@ -151,8 +153,27 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)(
if (len) { if (len) {
devx_obj = arr_flow_actions[0]->object; devx_obj = arr_flow_actions[0]->object;
if (!mlx5_ib_devx_is_flow_counter(devx_obj, &counter_id)) 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(u32));
if (num_offsets != 1)
return -EINVAL;
offset_attr = uverbs_attr_get_alloced_ptr(
attrs,
MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET);
offset = *offset_attr;
}
if (!mlx5_ib_devx_is_flow_counter(devx_obj, offset,
&counter_id))
return -EINVAL; return -EINVAL;
flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
} }
@ -598,7 +619,11 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_IDRS_ARR(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX, UVERBS_ATTR_IDRS_ARR(MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
MLX5_IB_OBJECT_DEVX_OBJ, MLX5_IB_OBJECT_DEVX_OBJ,
UVERBS_ACCESS_READ, 1, 1, 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(u32)),
UA_OPTIONAL,
UA_ALLOC_AND_COPY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY( DECLARE_UVERBS_NAMED_METHOD_DESTROY(
MLX5_IB_METHOD_DESTROY_FLOW, MLX5_IB_METHOD_DESTROY_FLOW,

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@ -1366,7 +1366,7 @@ struct mlx5_ib_flow_handler *mlx5_ib_raw_fs_rule_add(
struct mlx5_flow_act *flow_act, u32 counter_id, struct mlx5_flow_act *flow_act, u32 counter_id,
void *cmd_in, int inlen, int dest_id, int dest_type); 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_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 offset, u32 *counter_id);
int mlx5_ib_get_flow_trees(const struct uverbs_object_tree_def **root); 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); void mlx5_ib_destroy_flow_action_raw(struct mlx5_ib_flow_action *maction);
#else #else

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@ -198,6 +198,7 @@ enum mlx5_ib_create_flow_attrs {
MLX5_IB_ATTR_CREATE_FLOW_ARR_FLOW_ACTIONS, MLX5_IB_ATTR_CREATE_FLOW_ARR_FLOW_ACTIONS,
MLX5_IB_ATTR_CREATE_FLOW_TAG, MLX5_IB_ATTR_CREATE_FLOW_TAG,
MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX, MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX,
MLX5_IB_ATTR_CREATE_FLOW_ARR_COUNTERS_DEVX_OFFSET,
}; };
enum mlx5_ib_destoy_flow_attrs { enum mlx5_ib_destoy_flow_attrs {