1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Freescale Layerscape MC I/O wrapper 4 * Data Path Buffer Pool API 5 * Contains initialization APIs and runtime control APIs for DPBP 6 * 7 * Copyright 2013-2016 Freescale Semiconductor, Inc. 8 * Copyright 2017-2023 NXP 9 */ 10 11 #ifndef __FSL_DPBP_H 12 #define __FSL_DPBP_H 13 14 /* DPBP Version */ 15 #define DPBP_VER_MAJOR 3 16 #define DPBP_VER_MINOR 3 17 18 /* Command IDs */ 19 #define DPBP_CMDID_CLOSE 0x8001 20 #define DPBP_CMDID_OPEN 0x8041 21 #define DPBP_CMDID_CREATE 0x9041 22 #define DPBP_CMDID_DESTROY 0x9841 23 #define DPBP_CMDID_GET_API_VERSION 0xa041 24 25 #define DPBP_CMDID_ENABLE 0x0021 26 #define DPBP_CMDID_DISABLE 0x0031 27 #define DPBP_CMDID_GET_ATTR 0x0041 28 #define DPBP_CMDID_RESET 0x0051 29 30 #pragma pack(push, 1) 31 32 struct dpbp_cmd_open { 33 __le32 dpbp_id; 34 }; 35 36 struct dpbp_cmd_destroy { 37 __le32 object_id; 38 }; 39 40 struct dpbp_rsp_get_attributes { 41 __le16 pad; 42 __le16 bpid; 43 __le32 id; 44 }; 45 46 #pragma pack(pop) 47 48 struct fsl_mc_io; 49 50 int dpbp_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpbp_id, u16 *token); 51 52 int dpbp_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); 53 54 /** 55 * struct dpbp_cfg - Structure representing DPBP configuration 56 * @options: place holder 57 */ 58 struct dpbp_cfg { 59 u32 options; 60 }; 61 62 int dpbp_create(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags, 63 const struct dpbp_cfg *cfg, u32 *obj_id); 64 65 int dpbp_destroy(struct fsl_mc_io *mc_io, u16 dprc_token, u32 cmd_flags, 66 u32 obj_id); 67 68 int dpbp_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); 69 70 int dpbp_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); 71 72 int dpbp_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); 73 74 /** 75 * struct dpbp_attr - Structure representing DPBP attributes 76 * @id: DPBP object ID 77 * @version: DPBP version 78 * @bpid: Hardware buffer pool ID; should be used as an argument in 79 * acquire/release operations on buffers 80 */ 81 struct dpbp_attr { 82 u32 id; 83 u16 bpid; 84 }; 85 86 int dpbp_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, 87 struct dpbp_attr *attr); 88 89 int dpbp_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags, 90 u16 *major_ver, u16 *minor_ver); 91 92 #endif /* __FSL_DPBP_H */ 93