1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2020 Mellanox Technologies Ltd. */
4 #ifndef __MLX5_VDPA_H__
5 #define __MLX5_VDPA_H__
7 #include <linux/etherdevice.h>
8 #include <linux/if_vlan.h>
9 #include <linux/vdpa.h>
10 #include <linux/mlx5/driver.h>
12 #define MLX5V_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
14 struct mlx5_vdpa_direct_mr {
18 struct mlx5_core_mkey mr;
19 struct sg_table sg_head;
23 struct list_head list;
28 struct mlx5_core_mkey mkey;
30 /* list of direct MRs descendants of this indirect mr */
31 struct list_head head;
32 unsigned long num_directs;
33 unsigned long num_klms;
36 /* serialize mkey creation and destruction */
37 struct mutex mkey_mtx;
40 struct mlx5_vdpa_resources {
42 struct mlx5_uars_page *uar;
43 void __iomem *kick_addr;
49 struct mlx5_vdpa_dev {
50 struct vdpa_device vdev;
51 struct mlx5_core_dev *mdev;
52 struct mlx5_vdpa_resources res;
60 struct mlx5_vdpa_mr mr;
63 int mlx5_vdpa_alloc_pd(struct mlx5_vdpa_dev *dev, u32 *pdn, u16 uid);
64 int mlx5_vdpa_dealloc_pd(struct mlx5_vdpa_dev *dev, u32 pdn, u16 uid);
65 int mlx5_vdpa_get_null_mkey(struct mlx5_vdpa_dev *dev, u32 *null_mkey);
66 int mlx5_vdpa_create_tis(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tisn);
67 void mlx5_vdpa_destroy_tis(struct mlx5_vdpa_dev *mvdev, u32 tisn);
68 int mlx5_vdpa_create_rqt(struct mlx5_vdpa_dev *mvdev, void *in, int inlen, u32 *rqtn);
69 void mlx5_vdpa_destroy_rqt(struct mlx5_vdpa_dev *mvdev, u32 rqtn);
70 int mlx5_vdpa_create_tir(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tirn);
71 void mlx5_vdpa_destroy_tir(struct mlx5_vdpa_dev *mvdev, u32 tirn);
72 int mlx5_vdpa_alloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 *tdn);
73 void mlx5_vdpa_dealloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 tdn);
74 int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev);
75 void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev);
76 int mlx5_vdpa_create_mkey(struct mlx5_vdpa_dev *mvdev, struct mlx5_core_mkey *mkey, u32 *in,
78 int mlx5_vdpa_destroy_mkey(struct mlx5_vdpa_dev *mvdev, struct mlx5_core_mkey *mkey);
79 int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb,
81 int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb);
82 void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev);
84 #define mlx5_vdpa_warn(__dev, format, ...) \
85 dev_warn((__dev)->mdev->device, "%s:%d:(pid %d) warning: " format, __func__, __LINE__, \
86 current->pid, ##__VA_ARGS__)
88 #define mlx5_vdpa_info(__dev, format, ...) \
89 dev_info((__dev)->mdev->device, "%s:%d:(pid %d): " format, __func__, __LINE__, \
90 current->pid, ##__VA_ARGS__)
92 #define mlx5_vdpa_dbg(__dev, format, ...) \
93 dev_debug((__dev)->mdev->device, "%s:%d:(pid %d): " format, __func__, __LINE__, \
94 current->pid, ##__VA_ARGS__)
96 #endif /* __MLX5_VDPA_H__ */