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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
*/
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_verbs.h>
#include <rdma/uverbs_types.h>
#include <rdma/uverbs_ioctl.h>
#include <rdma/mlx5_user_ioctl_cmds.h>
#include <rdma/ib_umem.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/fs.h>
#include "mlx5_ib.h"
#define UVERBS_MODULE_NAME mlx5_ib
#include <rdma/uverbs_named_ioctl.h>
static const struct uverbs_attr_spec mlx5_ib_flow_type[] = {
[MLX5_IB_FLOW_TYPE_NORMAL] = {
.type = UVERBS_ATTR_TYPE_PTR_IN,
.u.ptr = {
.len = sizeof(u16), /* data is priority */
.min_len = sizeof(u16),
}
},
[MLX5_IB_FLOW_TYPE_SNIFFER] = {
.type = UVERBS_ATTR_TYPE_PTR_IN,
UVERBS_ATTR_NO_DATA(),
},
[MLX5_IB_FLOW_TYPE_ALL_DEFAULT] = {
.type = UVERBS_ATTR_TYPE_PTR_IN,
UVERBS_ATTR_NO_DATA(),
},
[MLX5_IB_FLOW_TYPE_MC_DEFAULT] = {
.type = UVERBS_ATTR_TYPE_PTR_IN,
UVERBS_ATTR_NO_DATA(),
},
};
static int flow_matcher_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why)
{
struct mlx5_ib_flow_matcher *obj = uobject->object;
int ret;
ret = ib_destroy_usecnt(&obj->usecnt, why, uobject);
if (ret)
return ret;
kfree(obj);
return 0;
}
static int UVERBS_HANDLER(MLX5_IB_METHOD_FLOW_MATCHER_CREATE)(
struct ib_device *ib_dev, struct ib_uverbs_file *file,
struct uverbs_attr_bundle *attrs)
{
struct ib_uobject *uobj = uverbs_attr_get_uobject(
attrs, MLX5_IB_ATTR_FLOW_MATCHER_CREATE_HANDLE);
struct mlx5_ib_dev *dev = to_mdev(uobj->context->device);
struct mlx5_ib_flow_matcher *obj;
int err;
obj = kzalloc(sizeof(struct mlx5_ib_flow_matcher), GFP_KERNEL);
if (!obj)
return -ENOMEM;
obj->mask_len = uverbs_attr_get_len(
attrs, MLX5_IB_ATTR_FLOW_MATCHER_MATCH_MASK);
err = uverbs_copy_from(&obj->matcher_mask,
attrs,
MLX5_IB_ATTR_FLOW_MATCHER_MATCH_MASK);
if (err)
goto end;
obj->flow_type = uverbs_attr_get_enum_id(
attrs, MLX5_IB_ATTR_FLOW_MATCHER_FLOW_TYPE);
if (obj->flow_type == MLX5_IB_FLOW_TYPE_NORMAL) {
err = uverbs_copy_from(&obj->priority,
attrs,
MLX5_IB_ATTR_FLOW_MATCHER_FLOW_TYPE);
if (err)
goto end;
}
err = uverbs_copy_from(&obj->match_criteria_enable,
attrs,
MLX5_IB_ATTR_FLOW_MATCHER_MATCH_CRITERIA);
if (err)
goto end;
uobj->object = obj;
obj->mdev = dev->mdev;
atomic_set(&obj->usecnt, 0);
return 0;
end:
kfree(obj);
return err;
}
DECLARE_UVERBS_NAMED_METHOD(
MLX5_IB_METHOD_FLOW_MATCHER_CREATE,
UVERBS_ATTR_IDR(MLX5_IB_ATTR_FLOW_MATCHER_CREATE_HANDLE,
MLX5_IB_OBJECT_FLOW_MATCHER,
UVERBS_ACCESS_NEW,
UA_MANDATORY),
UVERBS_ATTR_PTR_IN(
MLX5_IB_ATTR_FLOW_MATCHER_MATCH_MASK,
UVERBS_ATTR_SIZE(1, sizeof(struct mlx5_ib_match_params)),
UA_MANDATORY),
UVERBS_ATTR_ENUM_IN(MLX5_IB_ATTR_FLOW_MATCHER_FLOW_TYPE,
mlx5_ib_flow_type,
UA_MANDATORY),
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_FLOW_MATCHER_MATCH_CRITERIA,
UVERBS_ATTR_TYPE(u8),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
MLX5_IB_METHOD_FLOW_MATCHER_DESTROY,
UVERBS_ATTR_IDR(MLX5_IB_ATTR_FLOW_MATCHER_DESTROY_HANDLE,
MLX5_IB_OBJECT_FLOW_MATCHER,
UVERBS_ACCESS_DESTROY,
UA_MANDATORY));
DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_FLOW_MATCHER,
UVERBS_TYPE_ALLOC_IDR(flow_matcher_cleanup),
&UVERBS_METHOD(MLX5_IB_METHOD_FLOW_MATCHER_CREATE),
&UVERBS_METHOD(MLX5_IB_METHOD_FLOW_MATCHER_DESTROY));
DECLARE_UVERBS_OBJECT_TREE(flow_objects,
&UVERBS_OBJECT(MLX5_IB_OBJECT_FLOW_MATCHER));
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