152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/*
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* Copyright 2017 Cisco Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _VNF_P7_H_
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#define _VNF_P7_H_
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#include "nfapi_vnf_interface.h"
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#define TIMEHR_SEC(_time_hr) ((uint32_t)(_time_hr) >> 20)
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#define TIMEHR_USEC(_time_hr) ((uint32_t)(_time_hr) & 0xFFFFF)
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#define TIME2TIMEHR(_time) (((uint32_t)(_time.tv_sec) & 0xFFF) << 20 | ((uint32_t)(_time.tv_usec) & 0xFFFFF))
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typedef struct {
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uint8_t* buffer;
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uint32_t length;
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} vnf_p7_rx_message_segment_t;
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typedef struct vnf_p7_rx_message vnf_p7_rx_message_t;
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typedef struct vnf_p7_rx_message {
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uint8_t sequence_number;
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uint8_t num_segments_received;
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uint8_t num_segments_expected;
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// the spec allows of upto 128 segments, this does seem excessive
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vnf_p7_rx_message_segment_t segments[128];
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uint32_t rx_hr_time;
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vnf_p7_rx_message_t* next;
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} vnf_p7_rx_message_t;
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typedef struct {
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vnf_p7_rx_message_t* msg_queue;
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} vnf_p7_rx_reassembly_queue_t;
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typedef struct nfapi_vnf_p7_connection_info {
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/*! The PHY id */
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int phy_id;
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// this does not belong here...
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uint8_t stream_id;
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/*! Flag indicating the sync state of the P7 conenction */
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uint8_t in_sync;
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int dl_out_sync_offset;
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int dl_out_sync_period; // ms (as a pow2)
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int dl_in_sync_offset;
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int dl_in_sync_period; // ms (as a pow2)
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uint8_t filtered_adjust;
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uint16_t min_sync_cycle_count;
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uint32_t latency[8];
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uint32_t average_latency;
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int32_t sf_offset_filtered;
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int32_t sf_offset_trend;
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int32_t sf_offset;
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int32_t slot_offset;
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int32_t slot_offset_trend;
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int32_t slot_offset_filtered;
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uint16_t zero_count;
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int32_t adjustment;
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int32_t insync_minor_adjustment;
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int32_t insync_minor_adjustment_duration;
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uint32_t previous_t1;
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uint32_t previous_t2;
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int32_t previous_sf_offset_filtered;
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int32_t previous_slot_offset_filtered;
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int sfn_sf;
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int sfn;
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int slot;
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int mu; // some 5G slot calculations need the numerology to know the number
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// of slots
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int socket;
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struct sockaddr_in local_addr;
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struct sockaddr_in remote_addr;
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vnf_p7_rx_reassembly_queue_t reassembly_queue;
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uint8_t* reassembly_buffer;
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uint32_t reassembly_buffer_size;
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uint32_t sequence_number;
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struct nfapi_vnf_p7_connection_info* next;
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} nfapi_vnf_p7_connection_info_t;
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typedef struct vnf_p7_s {
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nfapi_vnf_p7_config_t _public;
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// private data
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uint8_t terminate;
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nfapi_vnf_p7_connection_info_t* p7_connections;
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int socket;
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uint32_t sf_start_time_hr;
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uint32_t slot_start_time_hr;
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uint8_t* rx_message_buffer; // would this be better put in the p7 conenction info?
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uint16_t rx_message_buffer_size;
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} vnf_p7_t;
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uint32_t vnf_get_current_time_hr(void);
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uint16_t increment_sfn_sf(uint16_t sfn_sf);
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int vnf_sync(vnf_p7_t* vnf_p7, nfapi_vnf_p7_connection_info_t* p7_info);
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int vnf_nr_sync(vnf_p7_t* vnf_p7, nfapi_vnf_p7_connection_info_t* p7_info);
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int send_mac_subframe_indications(vnf_p7_t* config);
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int send_mac_slot_indications(vnf_p7_t* config);
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int vnf_p7_read_dispatch_message(vnf_p7_t* vnf_p7 );
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void vnf_nr_handle_p7_message(void *pRecvMsg, int recvMsgLen, vnf_p7_t* vnf_p7);
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vnf_p7_rx_message_t* vnf_p7_rx_reassembly_queue_add_segment(vnf_p7_t* vnf_p7, vnf_p7_rx_reassembly_queue_t* queue, uint16_t sequence_number, uint16_t segment_number, uint8_t m, uint8_t* data, uint16_t data_len);
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void* vnf_p7_malloc(vnf_p7_t* vnf_p7, size_t size);
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void vnf_p7_free(vnf_p7_t* vnf_p7, void* ptr);
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void vnf_p7_rx_reassembly_queue_remove_msg(vnf_p7_t* vnf_p7, vnf_p7_rx_reassembly_queue_t* queue, vnf_p7_rx_message_t* msg);
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void vnf_p7_rx_reassembly_queue_remove_old_msgs(vnf_p7_t* vnf_p7, vnf_p7_rx_reassembly_queue_t* queue, uint32_t delta);
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uint32_t calculate_transmit_timestamp(int mu, uint16_t sfn, uint16_t slot, uint32_t slot_start_time_hr);
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void vnf_p7_connection_info_list_add(vnf_p7_t* vnf_p7, nfapi_vnf_p7_connection_info_t* node);
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nfapi_vnf_p7_connection_info_t* vnf_p7_connection_info_list_find(vnf_p7_t* vnf_p7, uint16_t phy_id);
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nfapi_vnf_p7_connection_info_t* vnf_p7_connection_info_list_delete(vnf_p7_t* vnf_p7, uint16_t phy_id);
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int vnf_p7_pack_and_send_p7_msg(vnf_p7_t* vnf_p7, nfapi_p7_message_header_t* header);
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void vnf_p7_release_msg(vnf_p7_t* vnf_p7, nfapi_p7_message_header_t* header);
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void vnf_p7_release_pdu(vnf_p7_t* vnf_p7, void* pdu);
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#endif // _VNF_P7_H_
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