1 /******************************************************************************
3 * Copyright (c) 2020 Intel.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 *******************************************************************************/
20 * @brief This file provides the implementation of User Plane Messages APIs.
23 * @ingroup group_lte_source_xran
24 * @author Intel Corporation
28 #include <immintrin.h>
31 #include "xran_fh_o_du.h"
32 #include "xran_transport.h"
33 #include "xran_up_api.h"
34 #include "xran_printf.h"
35 #include "xran_mlog_lnx.h"
36 #include "xran_common.h"
39 * @brief Builds eCPRI header in xRAN packet
41 * @param mbuf Initialized rte_mbuf packet
42 * @param iq_data_num_bytes Number of bytes in IQ data buffer
43 * @param iq_data_offset Number of elements already sent
44 * @return int int 0 on success, non zero on failure
46 static int build_ecpri_hdr(struct rte_mbuf *mbuf,
47 const uint32_t iq_data_num_bytes,
48 const uint32_t iq_data_offset,
51 struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)
52 rte_pktmbuf_append(mbuf, sizeof(struct xran_ecpri_hdr));
54 uint16_t iq_samples_bytes_in_mbuf = rte_pktmbuf_tailroom(mbuf) -
55 sizeof(struct radio_app_common_hdr) - sizeof(struct data_section_hdr);
57 iq_samples_bytes_in_mbuf -= (iq_samples_bytes_in_mbuf % alignment);
59 if (NULL == ecpri_hdr)
62 ecpri_hdr->cmnhdr.data.data_num_1 = 0x0;
63 ecpri_hdr->cmnhdr.bits.ecpri_ver = XRAN_ECPRI_VER;
64 //ecpri_hdr->cmnhdr.bits.ecpri_resv = 0;
65 //ecpri_hdr->cmnhdr.bits.ecpri_concat = 0;
66 ecpri_hdr->cmnhdr.bits.ecpri_mesg_type = ECPRI_IQ_DATA;
68 if (iq_data_offset + iq_samples_bytes_in_mbuf > iq_data_num_bytes) {
69 ecpri_hdr->cmnhdr.bits.ecpri_payl_size =
70 rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +
71 sizeof(struct data_section_hdr) +
72 (iq_data_num_bytes - iq_data_offset) +
73 XRAN_ECPRI_HDR_SZ); //xran_get_ecpri_hdr_size());
74 ecpri_hdr->ecpri_seq_id.bits.e_bit = 1; /* last segment */
76 ecpri_hdr->cmnhdr.bits.ecpri_payl_size =
77 rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +
78 sizeof(struct data_section_hdr) +
79 iq_samples_bytes_in_mbuf +
80 XRAN_ECPRI_HDR_SZ); //xran_get_ecpri_hdr_size());
81 ecpri_hdr->ecpri_seq_id.bits.e_bit = 0;
84 ecpri_hdr->ecpri_xtc_id = 0; /* currently not used */
85 ecpri_hdr->ecpri_seq_id.bits.sub_seq_id = iq_data_offset /
86 iq_samples_bytes_in_mbuf;
92 * @brief Builds eCPRI header in xRAN packet
94 * @param mbuf Initialized rte_mbuf packet
95 * @param ecpri_mesg_type eCPRI message type
96 * @param payl_size the size in bytes of the payload part of eCPRI message
97 * @param CC_ID Component Carrier ID for ecpriRtcid/ecpriPcid
98 * @param Ant_ID Antenna ID for ecpriRtcid/ecpriPcid
99 * @param seq_id Message identifier for eCPRI message
100 * @param comp_meth Compression method
101 * @return int int 0 on success, non zero on failure
103 static inline int xran_build_ecpri_hdr_ex(struct rte_mbuf *mbuf,
104 uint8_t ecpri_mesg_type,
110 enum xran_comp_hdr_type staticEn)
112 char *pChar = rte_pktmbuf_mtod(mbuf, char*);
113 struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)(pChar + sizeof(struct rte_ether_hdr));
114 uint16_t ecpri_payl_size = payl_size
115 + sizeof(struct data_section_hdr)
116 + sizeof(struct radio_app_common_hdr)
117 + XRAN_ECPRI_HDR_SZ; //xran_get_ecpri_hdr_size();
118 if ((comp_meth != XRAN_COMPMETHOD_NONE)&&(staticEn == XRAN_COMP_HDR_TYPE_DYNAMIC))
119 ecpri_payl_size += sizeof(struct data_section_compression_hdr);
120 if (NULL == ecpri_hdr)
123 ecpri_hdr->cmnhdr.data.data_num_1 = 0x0;
124 ecpri_hdr->cmnhdr.bits.ecpri_ver = XRAN_ECPRI_VER;
125 //ecpri_hdr->cmnhdr.bits.ecpri_resv = 0; // should be zero
126 //ecpri_hdr->cmnhdr.bits.ecpri_concat = 0;
127 ecpri_hdr->cmnhdr.bits.ecpri_mesg_type = ecpri_mesg_type;
128 ecpri_hdr->cmnhdr.bits.ecpri_payl_size = rte_cpu_to_be_16(ecpri_payl_size);
130 /* one to one lls-CU to RU only and band sector is the same */
131 ecpri_hdr->ecpri_xtc_id = xran_compose_cid(0, 0, CC_ID, Ant_ID);
133 /* no transport layer fragmentation supported */
134 ecpri_hdr->ecpri_seq_id.data.data_num_1 = 0x8000;
135 ecpri_hdr->ecpri_seq_id.bits.seq_id = seq_id;
137 /* no transport layer fragmentation supported */
138 //ecpri_hdr->ecpri_seq_id.sub_seq_id = 0;
139 //ecpri_hdr->ecpri_seq_id.e_bit = 1;
146 * @brief Builds application layer of xRAN packet
148 * @param mbuf Initialized rte_mbuf packet
149 * @param app_hdr_input Radio App common header structure to be set in mbuf
151 * @return int 0 on success, non zero on failure
153 static inline int build_application_layer(
154 struct rte_mbuf *mbuf,
155 const struct radio_app_common_hdr *app_hdr_input)
157 char *pChar = rte_pktmbuf_mtod(mbuf, char*);
158 struct radio_app_common_hdr *app_hdr = (struct radio_app_common_hdr *)(pChar + sizeof(struct rte_ether_hdr)
159 + sizeof (struct xran_ecpri_hdr));
164 memcpy(app_hdr, app_hdr_input, sizeof(struct radio_app_common_hdr));
170 * @brief Builds section header in xRAN packet
172 * @param mbuf Initialized rte_mbuf packet
173 * @param sec_hdr Section header structure to be set in mbuf packet
174 * @return int 0 on success, non zero on failure
176 static inline int build_section_hdr(
177 struct rte_mbuf *mbuf,
178 const struct data_section_hdr *sec_hdr)
180 char *pChar = rte_pktmbuf_mtod(mbuf, char*);
181 struct data_section_hdr *section_hdr = (struct data_section_hdr *)
182 (pChar + sizeof(struct rte_ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr));
184 if (NULL == section_hdr)
187 memcpy(section_hdr, sec_hdr, sizeof(struct data_section_hdr));
192 * @brief Function for appending IQ samples data to the mbuf.
194 * @param mbuf Initialized rte_mbuf packet.
195 * @param iq_data_start Address of the first element in IQ data array.
196 * @param iq_data_num_bytes Size of the IQ data array.
197 * @param iq_data_offset IQ data btyes already sent.
198 * @return uint16_t Bytes that have been appended to the packet.
200 static inline uint16_t append_iq_samples_ex(
201 struct rte_mbuf *mbuf,
203 const void *iq_data_start,
204 const uint32_t iq_data_num_bytes,
205 enum xran_input_byte_order iq_buf_byte_order,
208 char *pChar = rte_pktmbuf_mtod(mbuf, char*);
211 iq_sam_buf = (pChar + iq_sam_offset);
212 if (iq_sam_buf == NULL){
213 print_err("iq_sam_buf == NULL\n");
216 if(iq_buf_byte_order == XRAN_CPU_LE_BYTE_ORDER){
218 uint16_t *psrc = (uint16_t *)iq_data_start;
219 uint16_t *pdst = (uint16_t *)iq_sam_buf;
220 /* CPU byte order (le) of IQ to network byte order (be) */
221 for (idx = 0; idx < iq_data_num_bytes/sizeof(int16_t); idx++){
222 pdst[idx] = (psrc[idx]>>8) | (psrc[idx]<<8); //rte_cpu_to_be_16(psrc[idx]);
226 else if(iq_buf_byte_order == XRAN_NE_BE_BYTE_ORDER){
228 memcpy(iq_sam_buf, (uint8_t *)iq_data_start, iq_data_num_bytes);
232 return iq_data_num_bytes;
236 * @brief Function for appending IQ samples data to the mbuf.
238 * @param mbuf Initialized rte_mbuf packet.
239 * @param iq_data_start Address of the first element in IQ data array.
240 * @param iq_data_num_bytes Size of the IQ data array.
241 * @param iq_data_offset IQ data btyes already sent.
242 * @return uint16_t Bytes that have been appended to the packet.
244 static uint16_t append_iq_samples(
245 struct rte_mbuf *mbuf,
246 const void *iq_data_start,
247 const uint32_t iq_data_num_bytes,
248 const uint32_t iq_data_offset,
249 const uint8_t alignment)
251 uint16_t iq_bytes_to_send = 0;
252 uint16_t free_space_in_pkt = rte_pktmbuf_tailroom(mbuf);
254 if (free_space_in_pkt > iq_data_num_bytes - iq_data_offset)
255 iq_bytes_to_send = iq_data_num_bytes - iq_data_offset;
257 iq_bytes_to_send = free_space_in_pkt;
259 /* don't cut off an iq in half */
260 iq_bytes_to_send -= iq_bytes_to_send % alignment;
262 void *iq_sam_buf = (void *)rte_pktmbuf_append(mbuf, iq_bytes_to_send);
264 memcpy(iq_sam_buf, (uint8_t *)iq_data_start + iq_data_offset,
267 return iq_bytes_to_send;
271 * @brief Builds compression header in xRAN packet
273 * @param mbuf Initialized rte_mbuf packet
274 * @param compression_hdr Section compression header structure
275 * to be set in mbuf packet
276 * @return int 0 on success, non zero on failure
278 static inline int build_compression_hdr(
279 struct rte_mbuf *mbuf,
280 const struct data_section_compression_hdr *compr_hdr)
282 char *pChar = rte_pktmbuf_mtod(mbuf, char*);
283 struct data_section_compression_hdr *compression_hdr = (struct data_section_compression_hdr *)
284 (pChar + sizeof(struct rte_ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr)
285 + sizeof(struct data_section_hdr));
287 if (NULL == compression_hdr)
290 memcpy(compression_hdr, compr_hdr, sizeof(*compression_hdr));
296 * @brief Appends compression parameter in xRAN packet
298 * @param mbuf Initialized rte_mbuf packet
299 * @param ud_comp_paramr Compression param to be set in mbuf packet
300 * @return int 0 on success, non zero on failure
302 static int append_comp_param(struct rte_mbuf *mbuf, union compression_params *ud_comp_param)
304 union compression_params *compr_param =
305 (union compression_params *)rte_pktmbuf_append(mbuf, sizeof(union compression_params));
307 if (NULL == compr_param)
310 memcpy(compr_param, ud_comp_param, sizeof(union compression_params));
316 * @brief Function for extracting all IQ samples from xRAN packet
317 * holding a single data section
318 * @param iq_data_start Address of the first element in IQ data array.
319 * @param symb_id Symbol ID to be extracted from ecpri header
320 * @param seq_id Sequence ID to be extracted from radio header
321 * @return int Size of remaining mbuf filled with IQ samples
324 int32_t xran_extract_iq_samples(struct rte_mbuf *mbuf,
325 void **iq_data_start,
329 uint8_t *subframe_id,
332 union ecpri_seq_id *seq_id,
334 uint16_t *start_prbu,
339 enum xran_comp_hdr_type staticComp,
344 uint32_t mlogVar[10];
345 uint32_t mlogVarCnt = 0;
347 struct xran_eaxc_info result;
351 if (NULL == iq_data_start)
354 /* Process eCPRI header. */
355 const struct xran_ecpri_hdr *ecpri_hdr = rte_pktmbuf_mtod(mbuf, void *);
356 if (ecpri_hdr == NULL)
360 *seq_id = ecpri_hdr->ecpri_seq_id;
362 if(*CC_ID == 0xFF && *Ant_ID == 0xFF) {
363 /* if not classified vi HW Queue parse packet */
364 xran_decompose_cid((uint16_t)ecpri_hdr->ecpri_xtc_id, &result);
366 *CC_ID = result.ccId;
367 *Ant_ID = result.ruPortId;
370 /* Process radio header. */
371 struct radio_app_common_hdr *radio_hdr =
372 (void *)rte_pktmbuf_adj(mbuf, sizeof(*ecpri_hdr));
373 if (radio_hdr == NULL)
374 return 0; /* packet too short */
376 radio_hdr->sf_slot_sym.value = rte_be_to_cpu_16(radio_hdr->sf_slot_sym.value);
379 *frame_id = radio_hdr->frame_id;
382 *subframe_id = radio_hdr->sf_slot_sym.subframe_id;
385 *slot_id = xran_slotid_convert(radio_hdr->sf_slot_sym.slot_id, 1);
388 *symb_id = radio_hdr->sf_slot_sym.symb_id;
390 /* Process data section hdr */
391 struct data_section_hdr *data_hdr =
392 (void *)rte_pktmbuf_adj(mbuf, sizeof(*radio_hdr));
393 if (data_hdr == NULL)
394 return 0; /* packet too short */
397 data_hdr->fields.all_bits = rte_be_to_cpu_32(data_hdr->fields.all_bits);
399 *num_prbu = data_hdr->fields.num_prbu;
400 *start_prbu = data_hdr->fields.start_prbu;
401 *sym_inc = data_hdr->fields.sym_inc;
402 *rb = data_hdr->fields.rb;
403 *sect_id = data_hdr->fields.sect_id;
406 const struct data_section_compression_hdr *data_compr_hdr;
407 if (staticComp != XRAN_COMP_HDR_TYPE_STATIC)
410 (void *) rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));
412 if (data_compr_hdr == NULL)
415 *compMeth = data_compr_hdr->ud_comp_hdr.ud_comp_meth;
416 *iqWidth = data_compr_hdr->ud_comp_hdr.ud_iq_width;
417 const uint8_t *compr_param =
418 (void *)rte_pktmbuf_adj(mbuf, sizeof(*data_compr_hdr));
420 *iq_data_start = (void *)compr_param; /*rte_pktmbuf_adj(mbuf, sizeof(*compr_param))*/;
424 *iq_data_start = rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));
429 *iq_data_start = rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));
432 if (*iq_data_start == NULL)
436 mlogVar[mlogVarCnt++] = 0xBBBBBBBB;
437 mlogVar[mlogVarCnt++] = radio_hdr->frame_id;
438 mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.subframe_id;
439 mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.slot_id;
440 mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.symb_id;
441 mlogVar[mlogVarCnt++] = data_hdr->fields.sect_id;
442 mlogVar[mlogVarCnt++] = data_hdr->fields.start_prbu;
443 mlogVar[mlogVarCnt++] = data_hdr->fields.num_prbu;
444 mlogVar[mlogVarCnt++] = rte_pktmbuf_pkt_len(mbuf);
445 MLogAddVariables(mlogVarCnt, mlogVar, MLogTick());
448 return rte_pktmbuf_pkt_len(mbuf);
452 * @brief Function for starting preparion of IQ samples portions
453 * to be sent in xRAN packet
455 * @param mbuf Initialized rte_mbuf packet.
456 * @param iq_data_start Address of the first element in IQ data array.
457 * @param iq_data_num_bytes Size of the IQ data array.
458 * @param iq_data_offset IQ data bytes already sent.
459 * @param alignment Size of IQ data alignment.
460 * @param pkt_gen_params Struct with parameters used for building packet
461 * @return int Number of bytes that have been appended
462 to the packet within all appended sections.
464 int32_t xran_prepare_iq_symbol_portion(
465 struct rte_mbuf *mbuf,
466 const void *iq_data_start,
467 const enum xran_input_byte_order iq_buf_byte_order,
468 const uint32_t iq_data_num_bytes,
469 struct xran_up_pkt_gen_params *params,
473 enum xran_comp_hdr_type staticEn,
478 if(xran_build_ecpri_hdr_ex(mbuf,
484 params->compr_hdr_param.ud_comp_hdr.ud_comp_meth,
486 print_err("xran_build_ecpri_hdr_ex return 0\n");
490 if (build_application_layer(mbuf, &(params->app_params)) != 0){
491 print_err("build_application_layer return != 0\n");
495 if (build_section_hdr(mbuf, &(params->sec_hdr)) != 0){
496 print_err("build_section_hdr return != 0\n");
500 offset = sizeof(struct rte_ether_hdr)
501 + sizeof(struct xran_ecpri_hdr)
502 + sizeof(struct radio_app_common_hdr)
503 + sizeof(struct data_section_hdr);
504 if ((params->compr_hdr_param.ud_comp_hdr.ud_comp_meth != XRAN_COMPMETHOD_NONE)&&(staticEn == XRAN_COMP_HDR_TYPE_DYNAMIC)) {
505 if (build_compression_hdr(mbuf, &(params->compr_hdr_param)) !=0)
507 offset += sizeof(struct data_section_compression_hdr);
509 return (do_copy ? append_iq_samples_ex(mbuf, offset, iq_data_start, iq_data_num_bytes, iq_buf_byte_order, do_copy) : iq_data_num_bytes);