1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019-2020 Broadcom
9 #include "tf_resources.h"
16 /* Internal macro to determine appropriate allocation pools based on
17 * DIRECTION parm, also performs error checking for DIRECTION parm. The
18 * SESSION_POOL and SESSION pointers are set appropriately upon
19 * successful return (the GLOBAL_POOL is used to globally manage
20 * resource allocation and the SESSION_POOL is used to track the
21 * resources that have been allocated to the session)
25 * enum tf_dir direction
26 * struct bitalloc **session_pool
27 * string base_pool_name - used to form pointers to the
28 * appropriate bit allocation
29 * pools, both directions of the
30 * session pools must have same
31 * base name, for example if
32 * POOL_NAME is feat_pool: - the
33 * ptr's to the session pools
34 * are feat_pool_rx feat_pool_tx
36 * int rc - return code
38 * -1 - invalid DIRECTION parm
40 #define TF_RM_GET_POOLS(tfs, direction, session_pool, pool_name, rc) do { \
42 if ((direction) == TF_DIR_RX) { \
43 *(session_pool) = (tfs)->pool_name ## _RX; \
44 } else if ((direction) == TF_DIR_TX) { \
45 *(session_pool) = (tfs)->pool_name ## _TX; \
51 #define TF_RM_GET_POOLS_RX(tfs, session_pool, pool_name) \
52 (*(session_pool) = (tfs)->pool_name ## _RX)
54 #define TF_RM_GET_POOLS_TX(tfs, session_pool, pool_name) \
55 (*(session_pool) = (tfs)->pool_name ## _TX)
58 * Resource query single entry
60 struct tf_rm_query_entry {
61 /** Minimum guaranteed number of elements */
63 /** Maximum non-guaranteed number of elements */
68 * Resource single entry
71 /** Starting index of the allocated resource */
73 /** Number of allocated elements */
78 * Resource query array of HW entities
80 struct tf_rm_hw_query {
81 /** array of HW resource entries */
82 struct tf_rm_query_entry hw_query[TF_RESC_TYPE_HW_MAX];
86 * Resource allocation array of HW entities
88 struct tf_rm_hw_alloc {
89 /** array of HW resource entries */
90 uint16_t hw_num[TF_RESC_TYPE_HW_MAX];
94 * Resource query array of SRAM entities
96 struct tf_rm_sram_query {
97 /** array of SRAM resource entries */
98 struct tf_rm_query_entry sram_query[TF_RESC_TYPE_SRAM_MAX];
102 * Resource allocation array of SRAM entities
104 struct tf_rm_sram_alloc {
105 /** array of SRAM resource entries */
106 uint16_t sram_num[TF_RESC_TYPE_SRAM_MAX];
110 * Initializes the Resource Manager and the associated database
111 * entries for HW and SRAM resources. Must be called before any other
112 * Resource Manager functions.
115 * Pointer to TF handle
117 void tf_rm_init(struct tf *tfp);
120 * Allocates and validates both HW and SRAM resources per the NVM
121 * configuration. If any allocation fails all resources for the
122 * session is deallocated.
125 * Pointer to TF handle
128 * - (0) if successful.
129 * - (-EINVAL) on failure.
131 int tf_rm_allocate_validate(struct tf *tfp);
134 * Closes the Resource Manager and frees all allocated resources per
135 * the associated database.
138 * Pointer to TF handle
141 * - (0) if successful.
142 * - (-EINVAL) on failure.
143 * - (-ENOTEMPTY) if resources are not cleaned up before close
145 int tf_rm_close(struct tf *tfp);
146 #endif /* TF_RM_H_ */