-/******************************************************************************\r
-*\r
-* Copyright (c) 2019 Intel.\r
-*\r
-* Licensed under the Apache License, Version 2.0 (the "License");\r
-* you may not use this file except in compliance with the License.\r
-* You may obtain a copy of the License at\r
-*\r
-* http://www.apache.org/licenses/LICENSE-2.0\r
-*\r
-* Unless required by applicable law or agreed to in writing, software\r
-* distributed under the License is distributed on an "AS IS" BASIS,\r
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
-* See the License for the specific language governing permissions and\r
-* limitations under the License.\r
-*\r
-*******************************************************************************/\r
-\r
-/**\r
- * @brief This file provides the implementation of User Plane Messages APIs.\r
- *\r
- * @file xran_up_api.c\r
- * @ingroup group_lte_source_xran\r
- * @author Intel Corporation\r
- *\r
- **/\r
-#include <inttypes.h>\r
-\r
-#include <rte_memcpy.h>\r
-#include <rte_mbuf.h>\r
-\r
-#include "xran_fh_o_du.h"\r
-#include "xran_transport.h"\r
-#include "xran_up_api.h"\r
-#include "xran_printf.h"\r
-#include "xran_mlog_lnx.h"\r
-\r
-extern uint32_t xran_lib_ota_tti;\r
-\r
-/**\r
- * @brief Builds eCPRI header in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param iq_data_num_bytes Number of bytes in IQ data buffer\r
- * @param iq_data_offset Number of elements already sent\r
- * @return int int 0 on success, non zero on failure\r
- */\r
-static int build_ecpri_hdr(struct rte_mbuf *mbuf,\r
- const uint32_t iq_data_num_bytes,\r
- const uint32_t iq_data_offset,\r
- uint8_t alignment)\r
-{\r
- struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)\r
- rte_pktmbuf_append(mbuf, sizeof(struct xran_ecpri_hdr));\r
-\r
- uint16_t iq_samples_bytes_in_mbuf = rte_pktmbuf_tailroom(mbuf) -\r
- sizeof(struct radio_app_common_hdr) - sizeof(struct data_section_hdr);\r
-\r
- iq_samples_bytes_in_mbuf -= (iq_samples_bytes_in_mbuf % alignment);\r
-\r
- if (NULL == ecpri_hdr)\r
- return 1;\r
-\r
- ecpri_hdr->cmnhdr.ecpri_ver = XRAN_ECPRI_VER;\r
- ecpri_hdr->cmnhdr.ecpri_resv = 0;\r
- ecpri_hdr->cmnhdr.ecpri_concat = 0;\r
- ecpri_hdr->cmnhdr.ecpri_mesg_type = ECPRI_IQ_DATA;\r
-\r
- if (iq_data_offset + iq_samples_bytes_in_mbuf > iq_data_num_bytes) {\r
- ecpri_hdr->cmnhdr.ecpri_payl_size =\r
- rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +\r
- sizeof(struct data_section_hdr) +\r
- (iq_data_num_bytes - iq_data_offset) +\r
- xran_get_ecpri_hdr_size());\r
- ecpri_hdr->ecpri_seq_id.e_bit = 1; /* last segment */\r
- } else {\r
- ecpri_hdr->cmnhdr.ecpri_payl_size =\r
- rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +\r
- sizeof(struct data_section_hdr) +\r
- iq_samples_bytes_in_mbuf +\r
- xran_get_ecpri_hdr_size());\r
- ecpri_hdr->ecpri_seq_id.e_bit = 0;\r
- }\r
-\r
-// ecpri_hdr->ecpri_xtc_id = 0; /* currently not used */\r
- ecpri_hdr->ecpri_seq_id.seq_id = 0;\r
- ecpri_hdr->ecpri_seq_id.sub_seq_id = iq_data_offset /\r
- iq_samples_bytes_in_mbuf;\r
-\r
- return 0;\r
-}\r
-\r
-/**\r
- * @brief Builds eCPRI header in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param ecpri_mesg_type eCPRI message type\r
- * @param payl_size the size in bytes of the payload part of eCPRI message\r
- * @param CC_ID Component Carrier ID for ecpriRtcid/ecpriPcid\r
- * @param Ant_ID Antenna ID for ecpriRtcid/ecpriPcid\r
- * @param seq_id Message identifier for eCPRI message\r
- * @param comp_meth Compression method\r
- * @return int int 0 on success, non zero on failure\r
- */\r
-static int xran_build_ecpri_hdr_ex(struct rte_mbuf *mbuf,\r
- uint8_t ecpri_mesg_type,\r
- int payl_size,\r
- uint8_t CC_ID,\r
- uint8_t Ant_ID,\r
- uint8_t seq_id,\r
- uint8_t comp_meth)\r
-{\r
- char *pChar = rte_pktmbuf_mtod(mbuf, char*);\r
- struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)(pChar + sizeof(struct ether_hdr));\r
- uint16_t ecpri_payl_size = payl_size\r
- + sizeof(struct data_section_hdr)\r
- + sizeof(struct radio_app_common_hdr)\r
- + xran_get_ecpri_hdr_size();\r
-\r
- if (comp_meth != XRAN_COMPMETHOD_NONE)\r
- ecpri_payl_size += sizeof(struct data_section_compression_hdr);\r
-\r
- if (NULL == ecpri_hdr)\r
- return 1;\r
-\r
- ecpri_hdr->cmnhdr.ecpri_ver = XRAN_ECPRI_VER;\r
- ecpri_hdr->cmnhdr.ecpri_resv = 0; // should be zero\r
- ecpri_hdr->cmnhdr.ecpri_concat = 0;\r
- ecpri_hdr->cmnhdr.ecpri_mesg_type = ecpri_mesg_type;\r
- ecpri_hdr->cmnhdr.ecpri_payl_size = rte_cpu_to_be_16(ecpri_payl_size);\r
-\r
- /* one to one lls-CU to RU only and band sector is the same */\r
- ecpri_hdr->ecpri_xtc_id = xran_compose_cid(0, 0, CC_ID, Ant_ID);\r
-\r
- ecpri_hdr->ecpri_seq_id.seq_id = seq_id;\r
-\r
- /* no transport layer fragmentation supported */\r
- ecpri_hdr->ecpri_seq_id.sub_seq_id = 0;\r
- ecpri_hdr->ecpri_seq_id.e_bit = 1;\r
-\r
- return 0;\r
-}\r
-\r
-\r
-/**\r
- * @brief Builds application layer of xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param app_hdr_input Radio App common header structure to be set in mbuf\r
- * packet.\r
- * @return int 0 on success, non zero on failure\r
- */\r
-static int build_application_layer(\r
- struct rte_mbuf *mbuf,\r
- const struct radio_app_common_hdr *app_hdr_input)\r
-{\r
- char *pChar = rte_pktmbuf_mtod(mbuf, char*);\r
- struct radio_app_common_hdr *app_hdr = (struct radio_app_common_hdr *)(pChar + sizeof(struct ether_hdr)\r
- + sizeof (struct xran_ecpri_hdr));\r
-\r
- if (NULL == app_hdr)\r
- return 1;\r
-\r
- rte_memcpy(app_hdr, app_hdr_input, sizeof(struct radio_app_common_hdr));\r
-\r
- return 0;\r
-}\r
-\r
-/**\r
- * @brief Builds section header in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param sec_hdr Section header structure to be set in mbuf packet\r
- * @return int 0 on success, non zero on failure\r
- */\r
-static int build_section_hdr(\r
- struct rte_mbuf *mbuf,\r
- const struct data_section_hdr *sec_hdr)\r
-{\r
- char *pChar = rte_pktmbuf_mtod(mbuf, char*);\r
- struct data_section_hdr *section_hdr = (struct data_section_hdr *)\r
- (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr));\r
-\r
- if (NULL == section_hdr)\r
- return 1;\r
-\r
- rte_memcpy(section_hdr, sec_hdr, sizeof(struct data_section_hdr));\r
-\r
- return 0;\r
-}\r
-/**\r
- * @brief Function for appending IQ samples data to the mbuf.\r
- *\r
- * @param mbuf Initialized rte_mbuf packet.\r
- * @param iq_data_start Address of the first element in IQ data array.\r
- * @param iq_data_num_bytes Size of the IQ data array.\r
- * @param iq_data_offset IQ data btyes already sent.\r
- * @return uint16_t Bytes that have been appended to the packet.\r
- */\r
-static uint16_t append_iq_samples_ex(\r
- struct rte_mbuf *mbuf,\r
- const void *iq_data_start,\r
- const uint32_t iq_data_num_bytes,\r
- enum xran_input_byte_order iq_buf_byte_order,\r
- uint32_t do_copy)\r
-{\r
- char *pChar = rte_pktmbuf_mtod(mbuf, char*);\r
- void *iq_sam_buf = (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr)\r
- + sizeof(struct radio_app_common_hdr)\r
- + sizeof(struct data_section_hdr));\r
-\r
- if (iq_sam_buf == NULL){\r
- print_err("iq_sam_buf == NULL\n");\r
- return 0;\r
- }\r
- if(iq_buf_byte_order == XRAN_CPU_LE_BYTE_ORDER){\r
- int idx = 0;\r
- uint16_t *psrc = (uint16_t *)iq_data_start;\r
- uint16_t *pdst = (uint16_t *)iq_sam_buf;\r
- /* CPU byte order (le) of IQ to network byte order (be) */\r
- for (idx = 0; idx < iq_data_num_bytes/sizeof(int16_t); idx++){\r
- pdst[idx] = (psrc[idx]>>8) | (psrc[idx]<<8); //rte_cpu_to_be_16(psrc[idx]);\r
- }\r
- }\r
-\r
-#if 0\r
- /* do not expect to do copy anymore */\r
- else if(iq_buf_byte_order == XRAN_NE_BE_BYTE_ORDER){\r
- if(do_copy) {\r
- rte_memcpy(iq_sam_buf, (uint8_t *)iq_data_start, iq_data_num_bytes);\r
- }\r
- }\r
-#endif\r
-\r
- return iq_data_num_bytes;\r
-}\r
-\r
-/**\r
- * @brief Function for appending IQ samples data to the mbuf.\r
- *\r
- * @param mbuf Initialized rte_mbuf packet.\r
- * @param iq_data_start Address of the first element in IQ data array.\r
- * @param iq_data_num_bytes Size of the IQ data array.\r
- * @param iq_data_offset IQ data btyes already sent.\r
- * @return uint16_t Bytes that have been appended to the packet.\r
- */\r
-static uint16_t append_iq_samples(\r
- struct rte_mbuf *mbuf,\r
- const void *iq_data_start,\r
- const uint32_t iq_data_num_bytes,\r
- const uint32_t iq_data_offset,\r
- const uint8_t alignment)\r
-{\r
- uint16_t iq_bytes_to_send = 0;\r
- uint16_t free_space_in_pkt = rte_pktmbuf_tailroom(mbuf);\r
-\r
- if (free_space_in_pkt > iq_data_num_bytes - iq_data_offset)\r
- iq_bytes_to_send = iq_data_num_bytes - iq_data_offset;\r
- else\r
- iq_bytes_to_send = free_space_in_pkt;\r
-\r
- /* don't cut off an iq in half */\r
- iq_bytes_to_send -= iq_bytes_to_send % alignment;\r
-\r
- void *iq_sam_buf = (void *)rte_pktmbuf_append(mbuf, iq_bytes_to_send);\r
-\r
- rte_memcpy(iq_sam_buf, (uint8_t *)iq_data_start + iq_data_offset,\r
- iq_bytes_to_send);\r
-\r
- return iq_bytes_to_send;\r
-}\r
-\r
-/**\r
- * @brief Builds compression header in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param compression_hdr Section compression header structure\r
- * to be set in mbuf packet\r
- * @return int 0 on success, non zero on failure\r
- */\r
-static int build_compression_hdr(\r
- struct rte_mbuf *mbuf,\r
- const struct data_section_compression_hdr *compr_hdr)\r
-{\r
- char *pChar = rte_pktmbuf_mtod(mbuf, char*);\r
- struct data_section_compression_hdr *compression_hdr = (struct data_section_compression_hdr *)\r
- (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr)\r
- + sizeof(struct data_section_hdr));\r
-\r
- if (NULL == compression_hdr)\r
- return 1;\r
-\r
- rte_memcpy(compression_hdr, compr_hdr, sizeof(*compression_hdr));\r
-\r
- return 0;\r
-}\r
-\r
-/**\r
- * @brief Appends compression parameter in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet\r
- * @param ud_comp_paramr Compression param to be set in mbuf packet\r
- * @return int 0 on success, non zero on failure\r
- */\r
-static int append_comp_param(struct rte_mbuf *mbuf, union compression_params *ud_comp_param)\r
-{\r
- union compression_params *compr_param =\r
- (union compression_params *)rte_pktmbuf_append(mbuf, sizeof(union compression_params));\r
-\r
- if (NULL == compr_param)\r
- return 1;\r
-\r
- rte_memcpy(compr_param, ud_comp_param, sizeof(union compression_params));\r
-\r
- return 0;\r
-}\r
-\r
-/**\r
- * @brief Function for extracting all IQ samples from xRAN packet\r
- * holding a single data section\r
- * @param iq_data_start Address of the first element in IQ data array.\r
- * @param symb_id Symbol ID to be extracted from ecpri header\r
- * @param seq_id Sequence ID to be extracted from radio header\r
- * @return int Size of remaining mbuf filled with IQ samples\r
- zero on failure\r
- */\r
-int32_t xran_extract_iq_samples(struct rte_mbuf *mbuf,\r
- void **iq_data_start,\r
- uint8_t *CC_ID,\r
- uint8_t *Ant_ID,\r
- uint8_t *frame_id,\r
- uint8_t *subframe_id,\r
- uint8_t *slot_id,\r
- uint8_t *symb_id,\r
- struct ecpri_seq_id *seq_id,\r
- uint16_t *num_prbu,\r
- uint16_t *start_prbu,\r
- uint16_t *sym_inc,\r
- uint16_t *rb,\r
- uint16_t *sect_id,\r
- int8_t expect_comp,\r
- uint8_t *compMeth,\r
- uint8_t *iqWidth)\r
-{\r
-#if XRAN_MLOG_VAR\r
- uint32_t mlogVar[10];\r
- uint32_t mlogVarCnt = 0;\r
-#endif\r
- struct xran_eaxc_info result;\r
-\r
- if (NULL == mbuf)\r
- return 0;\r
- if (NULL == iq_data_start)\r
- return 0;\r
-\r
- /* Process eCPRI header. */\r
- const struct xran_ecpri_hdr *ecpri_hdr = rte_pktmbuf_mtod(mbuf, void *);\r
- if (ecpri_hdr == NULL)\r
- return 0;\r
-\r
- if (seq_id)\r
- *seq_id = ecpri_hdr->ecpri_seq_id;\r
-\r
- xran_decompose_cid((uint16_t)ecpri_hdr->ecpri_xtc_id, &result);\r
-\r
- *CC_ID = result.ccId;\r
- *Ant_ID = result.ruPortId;\r
-\r
- /* Process radio header. */\r
- struct radio_app_common_hdr *radio_hdr =\r
- (void *)rte_pktmbuf_adj(mbuf, sizeof(*ecpri_hdr));\r
- if (radio_hdr == NULL)\r
- return 0; /* packet too short */\r
-\r
- radio_hdr->sf_slot_sym.value = rte_be_to_cpu_16(radio_hdr->sf_slot_sym.value);\r
-\r
- if (frame_id)\r
- *frame_id = radio_hdr->frame_id;\r
-\r
- if (subframe_id)\r
- *subframe_id = radio_hdr->sf_slot_sym.subframe_id;\r
-\r
- if (slot_id)\r
- *slot_id = radio_hdr->sf_slot_sym.slot_id;\r
-\r
- if (symb_id)\r
- *symb_id = radio_hdr->sf_slot_sym.symb_id;\r
-\r
- /* Process data section hdr */\r
- struct data_section_hdr *data_hdr =\r
- (void *)rte_pktmbuf_adj(mbuf, sizeof(*radio_hdr));\r
- if (data_hdr == NULL)\r
- return 0; /* packet too short */\r
-\r
- /* cpu byte order */\r
- data_hdr->fields.all_bits = rte_be_to_cpu_32(data_hdr->fields.all_bits);\r
-\r
- *num_prbu = data_hdr->fields.num_prbu;\r
- *start_prbu = data_hdr->fields.start_prbu;\r
- *sym_inc = data_hdr->fields.sym_inc;\r
- *rb = data_hdr->fields.rb;\r
- *sect_id = data_hdr->fields.sect_id;\r
-\r
- if(expect_comp) {\r
- const struct data_section_compression_hdr *data_compr_hdr =\r
- (void *) rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));\r
-\r
- if (data_compr_hdr == NULL)\r
- return 0;\r
-\r
- *compMeth = data_compr_hdr->ud_comp_hdr.ud_comp_meth;\r
- *iqWidth = data_compr_hdr->ud_comp_hdr.ud_iq_width;\r
-\r
- const uint8_t *compr_param =\r
- (void *)rte_pktmbuf_adj(mbuf, sizeof(*data_compr_hdr));\r
-\r
- *iq_data_start = (void *)compr_param; /*rte_pktmbuf_adj(mbuf, sizeof(*compr_param))*/;\r
- } else {\r
- *iq_data_start = rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));\r
- }\r
-\r
- if (*iq_data_start == NULL)\r
- return 0;\r
-\r
-#if XRAN_MLOG_VAR\r
- mlogVar[mlogVarCnt++] = 0xBBBBBBBB;\r
- mlogVar[mlogVarCnt++] = xran_lib_ota_tti;\r
- mlogVar[mlogVarCnt++] = radio_hdr->frame_id;\r
- mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.subframe_id;\r
- mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.slot_id;\r
- mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.symb_id;\r
- mlogVar[mlogVarCnt++] = data_hdr->fields.sect_id;\r
- mlogVar[mlogVarCnt++] = data_hdr->fields.start_prbu;\r
- mlogVar[mlogVarCnt++] = data_hdr->fields.num_prbu;\r
- mlogVar[mlogVarCnt++] = rte_pktmbuf_pkt_len(mbuf);\r
- MLogAddVariables(mlogVarCnt, mlogVar, MLogTick());\r
-#endif\r
-\r
- return rte_pktmbuf_pkt_len(mbuf);\r
-}\r
-\r
-/**\r
- * @brief Function for starting preparion of IQ samples portions\r
- * to be sent in xRAN packet\r
- *\r
- * @param mbuf Initialized rte_mbuf packet.\r
- * @param iq_data_start Address of the first element in IQ data array.\r
- * @param iq_data_num_bytes Size of the IQ data array.\r
- * @param iq_data_offset IQ data bytes already sent.\r
- * @param alignment Size of IQ data alignment.\r
- * @param pkt_gen_params Struct with parameters used for building packet\r
- * @return int Number of bytes that have been appended\r
- to the packet within all appended sections.\r
- */\r
-int32_t xran_prepare_iq_symbol_portion(\r
- struct rte_mbuf *mbuf,\r
- const void *iq_data_start,\r
- const enum xran_input_byte_order iq_buf_byte_order,\r
- const uint32_t iq_data_num_bytes,\r
- struct xran_up_pkt_gen_params *params,\r
- uint8_t CC_ID,\r
- uint8_t Ant_ID,\r
- uint8_t seq_id,\r
- uint32_t do_copy)\r
-{\r
- if(xran_build_ecpri_hdr_ex(mbuf,\r
- ECPRI_IQ_DATA,\r
- iq_data_num_bytes,\r
- CC_ID,\r
- Ant_ID,\r
- seq_id,\r
- params->compr_hdr_param.ud_comp_hdr.ud_comp_meth)){\r
- print_err("xran_build_ecpri_hdr_ex return 0\n");\r
- return 0;\r
- }\r
-\r
- if (build_application_layer(mbuf, &(params->app_params)) != 0){\r
- print_err("build_application_layer return != 0\n");\r
- return 0;\r
- }\r
-\r
- if (build_section_hdr(mbuf, &(params->sec_hdr)) != 0){\r
- print_err("build_section_hdr return != 0\n");\r
- return 0;\r
- }\r
-\r
-\r
- if(params->compr_hdr_param.ud_comp_hdr.ud_comp_meth != XRAN_COMPMETHOD_NONE) {\r
- if (build_compression_hdr(mbuf, &(params->compr_hdr_param)) !=0)\r
- return 0;\r
-\r
- /* payload expected to start with udCompParam */\r
-\r
- /*if(append_comp_param(mbuf, &(params->compr_param)) !=0)\r
- return 0;*/\r
- }\r
-\r
-\r
- return append_iq_samples_ex(mbuf, iq_data_start, iq_data_num_bytes, iq_buf_byte_order, do_copy);\r
-}\r
-\r
+/******************************************************************************
+*
+* Copyright (c) 2019 Intel.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+*******************************************************************************/
+
+/**
+ * @brief This file provides the implementation of User Plane Messages APIs.
+ *
+ * @file xran_up_api.c
+ * @ingroup group_lte_source_xran
+ * @author Intel Corporation
+ *
+ **/
+#include <inttypes.h>
+
+#include <rte_memcpy.h>
+#include <rte_mbuf.h>
+
+#include "xran_fh_o_du.h"
+#include "xran_transport.h"
+#include "xran_up_api.h"
+#include "xran_printf.h"
+#include "xran_mlog_lnx.h"
+
+extern uint32_t xran_lib_ota_tti;
+
+/**
+ * @brief Builds eCPRI header in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param iq_data_num_bytes Number of bytes in IQ data buffer
+ * @param iq_data_offset Number of elements already sent
+ * @return int int 0 on success, non zero on failure
+ */
+static int build_ecpri_hdr(struct rte_mbuf *mbuf,
+ const uint32_t iq_data_num_bytes,
+ const uint32_t iq_data_offset,
+ uint8_t alignment)
+{
+ struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)
+ rte_pktmbuf_append(mbuf, sizeof(struct xran_ecpri_hdr));
+
+ uint16_t iq_samples_bytes_in_mbuf = rte_pktmbuf_tailroom(mbuf) -
+ sizeof(struct radio_app_common_hdr) - sizeof(struct data_section_hdr);
+
+ iq_samples_bytes_in_mbuf -= (iq_samples_bytes_in_mbuf % alignment);
+
+ if (NULL == ecpri_hdr)
+ return 1;
+
+ ecpri_hdr->cmnhdr.ecpri_ver = XRAN_ECPRI_VER;
+ ecpri_hdr->cmnhdr.ecpri_resv = 0;
+ ecpri_hdr->cmnhdr.ecpri_concat = 0;
+ ecpri_hdr->cmnhdr.ecpri_mesg_type = ECPRI_IQ_DATA;
+
+ if (iq_data_offset + iq_samples_bytes_in_mbuf > iq_data_num_bytes) {
+ ecpri_hdr->cmnhdr.ecpri_payl_size =
+ rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +
+ sizeof(struct data_section_hdr) +
+ (iq_data_num_bytes - iq_data_offset) +
+ xran_get_ecpri_hdr_size());
+ ecpri_hdr->ecpri_seq_id.e_bit = 1; /* last segment */
+ } else {
+ ecpri_hdr->cmnhdr.ecpri_payl_size =
+ rte_cpu_to_be_16(sizeof(struct radio_app_common_hdr) +
+ sizeof(struct data_section_hdr) +
+ iq_samples_bytes_in_mbuf +
+ xran_get_ecpri_hdr_size());
+ ecpri_hdr->ecpri_seq_id.e_bit = 0;
+ }
+
+// ecpri_hdr->ecpri_xtc_id = 0; /* currently not used */
+ ecpri_hdr->ecpri_seq_id.seq_id = 0;
+ ecpri_hdr->ecpri_seq_id.sub_seq_id = iq_data_offset /
+ iq_samples_bytes_in_mbuf;
+
+ return 0;
+}
+
+/**
+ * @brief Builds eCPRI header in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param ecpri_mesg_type eCPRI message type
+ * @param payl_size the size in bytes of the payload part of eCPRI message
+ * @param CC_ID Component Carrier ID for ecpriRtcid/ecpriPcid
+ * @param Ant_ID Antenna ID for ecpriRtcid/ecpriPcid
+ * @param seq_id Message identifier for eCPRI message
+ * @param comp_meth Compression method
+ * @return int int 0 on success, non zero on failure
+ */
+static int xran_build_ecpri_hdr_ex(struct rte_mbuf *mbuf,
+ uint8_t ecpri_mesg_type,
+ int payl_size,
+ uint8_t CC_ID,
+ uint8_t Ant_ID,
+ uint8_t seq_id,
+ uint8_t comp_meth)
+{
+ char *pChar = rte_pktmbuf_mtod(mbuf, char*);
+ struct xran_ecpri_hdr *ecpri_hdr = (struct xran_ecpri_hdr *)(pChar + sizeof(struct ether_hdr));
+ uint16_t ecpri_payl_size = payl_size
+ + sizeof(struct data_section_hdr)
+ + sizeof(struct radio_app_common_hdr)
+ + xran_get_ecpri_hdr_size();
+
+ if (comp_meth != XRAN_COMPMETHOD_NONE)
+ ecpri_payl_size += sizeof(struct data_section_compression_hdr);
+
+ if (NULL == ecpri_hdr)
+ return 1;
+
+ ecpri_hdr->cmnhdr.ecpri_ver = XRAN_ECPRI_VER;
+ ecpri_hdr->cmnhdr.ecpri_resv = 0; // should be zero
+ ecpri_hdr->cmnhdr.ecpri_concat = 0;
+ ecpri_hdr->cmnhdr.ecpri_mesg_type = ecpri_mesg_type;
+ ecpri_hdr->cmnhdr.ecpri_payl_size = rte_cpu_to_be_16(ecpri_payl_size);
+
+ /* one to one lls-CU to RU only and band sector is the same */
+ ecpri_hdr->ecpri_xtc_id = xran_compose_cid(0, 0, CC_ID, Ant_ID);
+
+ ecpri_hdr->ecpri_seq_id.seq_id = seq_id;
+
+ /* no transport layer fragmentation supported */
+ ecpri_hdr->ecpri_seq_id.sub_seq_id = 0;
+ ecpri_hdr->ecpri_seq_id.e_bit = 1;
+
+ return 0;
+}
+
+
+/**
+ * @brief Builds application layer of xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param app_hdr_input Radio App common header structure to be set in mbuf
+ * packet.
+ * @return int 0 on success, non zero on failure
+ */
+static int build_application_layer(
+ struct rte_mbuf *mbuf,
+ const struct radio_app_common_hdr *app_hdr_input)
+{
+ char *pChar = rte_pktmbuf_mtod(mbuf, char*);
+ struct radio_app_common_hdr *app_hdr = (struct radio_app_common_hdr *)(pChar + sizeof(struct ether_hdr)
+ + sizeof (struct xran_ecpri_hdr));
+
+ if (NULL == app_hdr)
+ return 1;
+
+ rte_memcpy(app_hdr, app_hdr_input, sizeof(struct radio_app_common_hdr));
+
+ return 0;
+}
+
+/**
+ * @brief Builds section header in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param sec_hdr Section header structure to be set in mbuf packet
+ * @return int 0 on success, non zero on failure
+ */
+static int build_section_hdr(
+ struct rte_mbuf *mbuf,
+ const struct data_section_hdr *sec_hdr)
+{
+ char *pChar = rte_pktmbuf_mtod(mbuf, char*);
+ struct data_section_hdr *section_hdr = (struct data_section_hdr *)
+ (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr));
+
+ if (NULL == section_hdr)
+ return 1;
+
+ rte_memcpy(section_hdr, sec_hdr, sizeof(struct data_section_hdr));
+
+ return 0;
+}
+/**
+ * @brief Function for appending IQ samples data to the mbuf.
+ *
+ * @param mbuf Initialized rte_mbuf packet.
+ * @param iq_data_start Address of the first element in IQ data array.
+ * @param iq_data_num_bytes Size of the IQ data array.
+ * @param iq_data_offset IQ data btyes already sent.
+ * @return uint16_t Bytes that have been appended to the packet.
+ */
+static uint16_t append_iq_samples_ex(
+ struct rte_mbuf *mbuf,
+ const void *iq_data_start,
+ const uint32_t iq_data_num_bytes,
+ enum xran_input_byte_order iq_buf_byte_order,
+ uint32_t do_copy)
+{
+ char *pChar = rte_pktmbuf_mtod(mbuf, char*);
+ void *iq_sam_buf = (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr)
+ + sizeof(struct radio_app_common_hdr)
+ + sizeof(struct data_section_hdr));
+
+ if (iq_sam_buf == NULL){
+ print_err("iq_sam_buf == NULL\n");
+ return 0;
+ }
+ if(iq_buf_byte_order == XRAN_CPU_LE_BYTE_ORDER){
+ int idx = 0;
+ uint16_t *psrc = (uint16_t *)iq_data_start;
+ uint16_t *pdst = (uint16_t *)iq_sam_buf;
+ /* CPU byte order (le) of IQ to network byte order (be) */
+ for (idx = 0; idx < iq_data_num_bytes/sizeof(int16_t); idx++){
+ pdst[idx] = (psrc[idx]>>8) | (psrc[idx]<<8); //rte_cpu_to_be_16(psrc[idx]);
+ }
+ }
+
+#if 0
+ /* do not expect to do copy anymore */
+ else if(iq_buf_byte_order == XRAN_NE_BE_BYTE_ORDER){
+ if(do_copy) {
+ rte_memcpy(iq_sam_buf, (uint8_t *)iq_data_start, iq_data_num_bytes);
+ }
+ }
+#endif
+
+ return iq_data_num_bytes;
+}
+
+/**
+ * @brief Function for appending IQ samples data to the mbuf.
+ *
+ * @param mbuf Initialized rte_mbuf packet.
+ * @param iq_data_start Address of the first element in IQ data array.
+ * @param iq_data_num_bytes Size of the IQ data array.
+ * @param iq_data_offset IQ data btyes already sent.
+ * @return uint16_t Bytes that have been appended to the packet.
+ */
+static uint16_t append_iq_samples(
+ struct rte_mbuf *mbuf,
+ const void *iq_data_start,
+ const uint32_t iq_data_num_bytes,
+ const uint32_t iq_data_offset,
+ const uint8_t alignment)
+{
+ uint16_t iq_bytes_to_send = 0;
+ uint16_t free_space_in_pkt = rte_pktmbuf_tailroom(mbuf);
+
+ if (free_space_in_pkt > iq_data_num_bytes - iq_data_offset)
+ iq_bytes_to_send = iq_data_num_bytes - iq_data_offset;
+ else
+ iq_bytes_to_send = free_space_in_pkt;
+
+ /* don't cut off an iq in half */
+ iq_bytes_to_send -= iq_bytes_to_send % alignment;
+
+ void *iq_sam_buf = (void *)rte_pktmbuf_append(mbuf, iq_bytes_to_send);
+
+ rte_memcpy(iq_sam_buf, (uint8_t *)iq_data_start + iq_data_offset,
+ iq_bytes_to_send);
+
+ return iq_bytes_to_send;
+}
+
+/**
+ * @brief Builds compression header in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param compression_hdr Section compression header structure
+ * to be set in mbuf packet
+ * @return int 0 on success, non zero on failure
+ */
+static int build_compression_hdr(
+ struct rte_mbuf *mbuf,
+ const struct data_section_compression_hdr *compr_hdr)
+{
+ char *pChar = rte_pktmbuf_mtod(mbuf, char*);
+ struct data_section_compression_hdr *compression_hdr = (struct data_section_compression_hdr *)
+ (pChar + sizeof(struct ether_hdr) + sizeof (struct xran_ecpri_hdr) + sizeof(struct radio_app_common_hdr)
+ + sizeof(struct data_section_hdr));
+
+ if (NULL == compression_hdr)
+ return 1;
+
+ rte_memcpy(compression_hdr, compr_hdr, sizeof(*compression_hdr));
+
+ return 0;
+}
+
+/**
+ * @brief Appends compression parameter in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet
+ * @param ud_comp_paramr Compression param to be set in mbuf packet
+ * @return int 0 on success, non zero on failure
+ */
+static int append_comp_param(struct rte_mbuf *mbuf, union compression_params *ud_comp_param)
+{
+ union compression_params *compr_param =
+ (union compression_params *)rte_pktmbuf_append(mbuf, sizeof(union compression_params));
+
+ if (NULL == compr_param)
+ return 1;
+
+ rte_memcpy(compr_param, ud_comp_param, sizeof(union compression_params));
+
+ return 0;
+}
+
+/**
+ * @brief Function for extracting all IQ samples from xRAN packet
+ * holding a single data section
+ * @param iq_data_start Address of the first element in IQ data array.
+ * @param symb_id Symbol ID to be extracted from ecpri header
+ * @param seq_id Sequence ID to be extracted from radio header
+ * @return int Size of remaining mbuf filled with IQ samples
+ zero on failure
+ */
+int32_t xran_extract_iq_samples(struct rte_mbuf *mbuf,
+ void **iq_data_start,
+ uint8_t *CC_ID,
+ uint8_t *Ant_ID,
+ uint8_t *frame_id,
+ uint8_t *subframe_id,
+ uint8_t *slot_id,
+ uint8_t *symb_id,
+ struct ecpri_seq_id *seq_id,
+ uint16_t *num_prbu,
+ uint16_t *start_prbu,
+ uint16_t *sym_inc,
+ uint16_t *rb,
+ uint16_t *sect_id,
+ int8_t expect_comp,
+ uint8_t *compMeth,
+ uint8_t *iqWidth)
+{
+#if XRAN_MLOG_VAR
+ uint32_t mlogVar[10];
+ uint32_t mlogVarCnt = 0;
+#endif
+ struct xran_eaxc_info result;
+
+ if (NULL == mbuf)
+ return 0;
+ if (NULL == iq_data_start)
+ return 0;
+
+ /* Process eCPRI header. */
+ const struct xran_ecpri_hdr *ecpri_hdr = rte_pktmbuf_mtod(mbuf, void *);
+ if (ecpri_hdr == NULL)
+ return 0;
+
+ if (seq_id)
+ *seq_id = ecpri_hdr->ecpri_seq_id;
+
+ xran_decompose_cid((uint16_t)ecpri_hdr->ecpri_xtc_id, &result);
+
+ *CC_ID = result.ccId;
+ *Ant_ID = result.ruPortId;
+
+ /* Process radio header. */
+ struct radio_app_common_hdr *radio_hdr =
+ (void *)rte_pktmbuf_adj(mbuf, sizeof(*ecpri_hdr));
+ if (radio_hdr == NULL)
+ return 0; /* packet too short */
+
+ radio_hdr->sf_slot_sym.value = rte_be_to_cpu_16(radio_hdr->sf_slot_sym.value);
+
+ if (frame_id)
+ *frame_id = radio_hdr->frame_id;
+
+ if (subframe_id)
+ *subframe_id = radio_hdr->sf_slot_sym.subframe_id;
+
+ if (slot_id)
+ *slot_id = radio_hdr->sf_slot_sym.slot_id;
+
+ if (symb_id)
+ *symb_id = radio_hdr->sf_slot_sym.symb_id;
+
+ /* Process data section hdr */
+ struct data_section_hdr *data_hdr =
+ (void *)rte_pktmbuf_adj(mbuf, sizeof(*radio_hdr));
+ if (data_hdr == NULL)
+ return 0; /* packet too short */
+
+ /* cpu byte order */
+ data_hdr->fields.all_bits = rte_be_to_cpu_32(data_hdr->fields.all_bits);
+
+ *num_prbu = data_hdr->fields.num_prbu;
+ *start_prbu = data_hdr->fields.start_prbu;
+ *sym_inc = data_hdr->fields.sym_inc;
+ *rb = data_hdr->fields.rb;
+ *sect_id = data_hdr->fields.sect_id;
+
+ if(expect_comp) {
+ const struct data_section_compression_hdr *data_compr_hdr =
+ (void *) rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));
+
+ if (data_compr_hdr == NULL)
+ return 0;
+
+ *compMeth = data_compr_hdr->ud_comp_hdr.ud_comp_meth;
+ *iqWidth = data_compr_hdr->ud_comp_hdr.ud_iq_width;
+
+ const uint8_t *compr_param =
+ (void *)rte_pktmbuf_adj(mbuf, sizeof(*data_compr_hdr));
+
+ *iq_data_start = (void *)compr_param; /*rte_pktmbuf_adj(mbuf, sizeof(*compr_param))*/;
+ } else {
+ *iq_data_start = rte_pktmbuf_adj(mbuf, sizeof(*data_hdr));
+ }
+
+ if (*iq_data_start == NULL)
+ return 0;
+
+#if XRAN_MLOG_VAR
+ mlogVar[mlogVarCnt++] = 0xBBBBBBBB;
+ mlogVar[mlogVarCnt++] = xran_lib_ota_tti;
+ mlogVar[mlogVarCnt++] = radio_hdr->frame_id;
+ mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.subframe_id;
+ mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.slot_id;
+ mlogVar[mlogVarCnt++] = radio_hdr->sf_slot_sym.symb_id;
+ mlogVar[mlogVarCnt++] = data_hdr->fields.sect_id;
+ mlogVar[mlogVarCnt++] = data_hdr->fields.start_prbu;
+ mlogVar[mlogVarCnt++] = data_hdr->fields.num_prbu;
+ mlogVar[mlogVarCnt++] = rte_pktmbuf_pkt_len(mbuf);
+ MLogAddVariables(mlogVarCnt, mlogVar, MLogTick());
+#endif
+
+ return rte_pktmbuf_pkt_len(mbuf);
+}
+
+/**
+ * @brief Function for starting preparion of IQ samples portions
+ * to be sent in xRAN packet
+ *
+ * @param mbuf Initialized rte_mbuf packet.
+ * @param iq_data_start Address of the first element in IQ data array.
+ * @param iq_data_num_bytes Size of the IQ data array.
+ * @param iq_data_offset IQ data bytes already sent.
+ * @param alignment Size of IQ data alignment.
+ * @param pkt_gen_params Struct with parameters used for building packet
+ * @return int Number of bytes that have been appended
+ to the packet within all appended sections.
+ */
+int32_t xran_prepare_iq_symbol_portion(
+ struct rte_mbuf *mbuf,
+ const void *iq_data_start,
+ const enum xran_input_byte_order iq_buf_byte_order,
+ const uint32_t iq_data_num_bytes,
+ struct xran_up_pkt_gen_params *params,
+ uint8_t CC_ID,
+ uint8_t Ant_ID,
+ uint8_t seq_id,
+ uint32_t do_copy)
+{
+ if(xran_build_ecpri_hdr_ex(mbuf,
+ ECPRI_IQ_DATA,
+ iq_data_num_bytes,
+ CC_ID,
+ Ant_ID,
+ seq_id,
+ params->compr_hdr_param.ud_comp_hdr.ud_comp_meth)){
+ print_err("xran_build_ecpri_hdr_ex return 0\n");
+ return 0;
+ }
+
+ if (build_application_layer(mbuf, &(params->app_params)) != 0){
+ print_err("build_application_layer return != 0\n");
+ return 0;
+ }
+
+ if (build_section_hdr(mbuf, &(params->sec_hdr)) != 0){
+ print_err("build_section_hdr return != 0\n");
+ return 0;
+ }
+
+
+ if(params->compr_hdr_param.ud_comp_hdr.ud_comp_meth != XRAN_COMPMETHOD_NONE) {
+ if (build_compression_hdr(mbuf, &(params->compr_hdr_param)) !=0)
+ return 0;
+
+ /* payload expected to start with udCompParam */
+
+ /*if(append_comp_param(mbuf, &(params->compr_param)) !=0)
+ return 0;*/
+ }
+
+
+ return append_iq_samples_ex(mbuf, iq_data_start, iq_data_num_bytes, iq_buf_byte_order, do_copy);
+}
+
Code Review / o-du / phy.git / blobdiff