/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2019-2020 Broadcom
+ * Copyright(c) 2019-2021 Broadcom
* All rights reserved.
*/
#define TF_SESSION_ID_INVALID 0xFFFFFFFF /** Invalid Session ID define */
/**
- * Number of EM entries. Static for now will be removed
- * when parameter added at a later date. At this stage we
- * are using fixed size entries so that each stack entry
- * represents 4 RT (f/n)blocks. So we take the total block
- * allocation for truflow and divide that by 4.
+ * At this stage we are using fixed size entries so that each
+ * stack entry represents either 2 or 4 RT (f/n)blocks. So we
+ * take the total block allocation for truflow and divide that
+ * by either 2 or 4.
*/
-#define TF_SESSION_TOTAL_FN_BLOCKS (1024 * 8) /* 8K blocks */
+#ifdef TF_EM_ENTRY_IPV4_ONLY
+#define TF_SESSION_EM_ENTRY_SIZE 2 /* 2 blocks per entry */
+#else
#define TF_SESSION_EM_ENTRY_SIZE 4 /* 4 blocks per entry */
-#define TF_SESSION_EM_POOL_SIZE \
- (TF_SESSION_TOTAL_FN_BLOCKS / TF_SESSION_EM_ENTRY_SIZE)
+#endif
/**
* Session
* tf_session_info.
*/
struct tf_session {
- /** TrueFlow Version. Used to control the structure layout
+ /** TruFlow Version. Used to control the structure layout
* when sharing sessions. No guarantee that a secondary
* process would come from the same version of an executable.
*/
*/
union tf_session_id session_id;
+ /**
+ * Boolean controlling the use and availability of shared session.
+ * Shared session will allow the application to share resources
+ * on the firmware side without having to allocate them on firmware.
+ * Additional private session core_data will be allocated if this
+ * boolean is set to 'true', default 'false'.
+ *
+ */
+ bool shared_session;
+
+ /**
+ * This flag indicates the shared session on firmware side is created
+ * by this session. Some privileges may be assigned to this session.
+ *
+ */
+ bool shared_session_creator;
+
/**
* Boolean controlling the use and availability of shadow
* copy. Shadow copy will allow the TruFlow Core to keep track
* Linked list of clients registered for this session
*/
struct ll client_ll;
+
+ /**
+ * em ext db reference for the session
+ */
+ void *em_ext_db_handle;
+
+ /**
+ * tcam db reference for the session
+ */
+ void *tcam_db_handle;
+
+ /**
+ * table db reference for the session
+ */
+ void *tbl_db_handle;
+
+ /**
+ * identifier db reference for the session
+ */
+ void *id_db_handle;
+
+ /**
+ * em db reference for the session
+ */
+ void *em_db_handle;
+
+ /**
+ * EM allocator for session
+ */
+ void *em_pool[TF_DIR_MAX];
+
+#ifdef TF_TCAM_SHARED
+ /**
+ * tcam db reference for the session
+ */
+ void *tcam_shared_db_handle;
+#endif /* TF_TCAM_SHARED */
+ /**
+ * SRAM db reference for the session
+ */
+ void *sram_handle;
};
/**
* @ref tf_session_get_fw_session_id
*
* @ref tf_session_get_session_id
+ *
+ * @ref tf_session_is_shared_session_creator
+ *
+ * @ref tf_session_get_db
+ *
+ * @ref tf_session_set_db
+ *
+ * @ref tf_session_get_bp
+ *
+ * @ref tf_session_is_shared_session
+ *
+ * #define TF_SHARED
+ * @ref tf_session_get_tcam_shared_db
+ *
+ * @ref tf_session_set_tcam_shared_db
+ * #endif
+ *
+ * @ref tf_session_get_sram_db
+ *
+ * @ref tf_session_set_sram_db
*/
/**
/**
* Looks up the device information from the TF Session.
*
- * [in] tfp
- * Pointer to TF handle
+ * [in] tfs
+ * Pointer to session handle
*
* [out] tfd
- * Pointer pointer to the device
+ * Pointer to the device
*
* Returns
* - (0) if successful.
int tf_session_get_device(struct tf_session *tfs,
struct tf_dev_info **tfd);
+/**
+ * Returns the session and the device from the tfp.
+ *
+ * [in] tfp
+ * Pointer to TF handle
+ *
+ * [out] tfs
+ * Pointer to the session
+ *
+ * [out] tfd
+ * Pointer to the device
+
+ * Returns
+ * - (0) if successful.
+ * - (-EINVAL) on failure.
+ */
+int tf_session_get(struct tf *tfp,
+ struct tf_session **tfs,
+ struct tf_dev_info **tfd);
+
/**
* Looks up the FW Session id the requested TF handle.
*
int tf_session_get_session_id(struct tf *tfp,
union tf_session_id *session_id);
+/**
+ * API to get the em_ext_db from tf_session.
+ *
+ * [in] tfp
+ * Pointer to TF handle
+ *
+ * [out] em_ext_db_handle, pointer to eem handle
+ *
+ * Returns:
+ * - (0) if successful.
+ * - (-EINVAL) on failure.
+ */
+int
+tf_session_get_em_ext_db(struct tf *tfp,
+ void **em_ext_db_handle);
+
+/**
+ * API to set the em_ext_db in tf_session.
+ *
+ * [in] tfp
+ * Pointer to TF handle
+ *
+ * [in] em_ext_db_handle, pointer to eem handle
+ *
+ * Returns:
+ * - (0) if successful.
+ * - (-EINVAL) on failure.
+ */
+int
+tf_session_set_em_ext_db(struct tf *tfp,
+ void *em_ext_db_handle);
+
+/**
+ * API to get the db from tf_session.
+ *
+ * [in] tfp
+ * Pointer to TF handle
+ *
+ * [out] db_handle, pointer to db handle
+ *
+ * Returns:
+ * - (0) if successful.
+ * - (-EINVAL) on failure.
+ */
+int
+tf_session_get_db(struct tf *tfp,
+ enum tf_module_type type,
+ void **db_handle);
+
+/**
+ * API to set the db in tf_session.
+ *
+ * [in] tfp
+ * Pointer to TF handle
+ *
+ * [in] db_handle, pointer to db handle
+ *
+ * Returns:
+ * - (0) if successful.
+ * - (-EINVAL) on failure.
+ */
+int
+tf_session_set_db(struct tf *tfp,
+ enum tf_module_type type,
+ void *db_handle);
+
+/**
+ * Check if the session is shared session.
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - true if it is shared session
+ * - false if it is not shared session
+ */
+static inline bool
+tf_session_is_shared_session(struct tf_session *tfs)
+{
+ return tfs->shared_session;
+}
+
+/**
+ * Check if the session is the shared session creator
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - true if it is the shared session creator
+ * - false if it is not the shared session creator
+ */
+static inline bool
+tf_session_is_shared_session_creator(struct tf_session *tfs)
+{
+ return tfs->shared_session_creator;
+}
+
+/**
+ * Get the pointer to the parent bnxt struct
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - the pointer to the parent bnxt struct
+ */
+static inline struct bnxt*
+tf_session_get_bp(struct tf *tfp)
+{
+ return tfp->bp;
+}
+
+/**
+ * Set the pointer to the tcam shared database
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - the pointer to the parent bnxt struct
+ */
+int
+tf_session_set_tcam_shared_db(struct tf *tfp,
+ void *tcam_shared_db_handle);
+
+/**
+ * Get the pointer to the tcam shared database
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - the pointer to the parent bnxt struct
+ */
+int
+tf_session_get_tcam_shared_db(struct tf *tfp,
+ void **tcam_shared_db_handle);
+
+/**
+ * Set the pointer to the SRAM database
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - the pointer to the parent bnxt struct
+ */
+int
+tf_session_set_sram_db(struct tf *tfp,
+ void *sram_handle);
+
+/**
+ * Get the pointer to the SRAM database
+ *
+ * [in] session, pointer to the session
+ *
+ * Returns:
+ * - the pointer to the parent bnxt struct
+ */
+int
+tf_session_get_sram_db(struct tf *tfp,
+ void **sram_handle);
+
#endif /* _TF_SESSION_H_ */
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