X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=fhi_lib%2Flib%2Fsrc%2Fxran_transport.c;h=5251f71dc69ad609d81a257e4afb2b7840bf9590;hb=0134817ddd14e0a57f3476fdc5eaa5e7cb75c692;hp=9e1d192536dcd0e212ad162b40ad862ff7bd5e97;hpb=4745e5c88ba931c6d71cb6d8c681f76cf364eac5;p=o-du%2Fphy.git diff --git a/fhi_lib/lib/src/xran_transport.c b/fhi_lib/lib/src/xran_transport.c index 9e1d192..5251f71 100644 --- a/fhi_lib/lib/src/xran_transport.c +++ b/fhi_lib/lib/src/xran_transport.c @@ -1,101 +1,230 @@ -/****************************************************************************** -* -* 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 for Transport lyaer (eCPRI) API. - * - * @file xran_transport.c - * @ingroup group_lte_source_xran - * @author Intel Corporation - * - **/ - -#include -#include -#include -#include - -#include "xran_fh_lls_cu.h" -#include "xran_common.h" -#include "xran_transport.h" -#include "xran_up_api.h" - - -/** - * @brief Compose ecpriRtcid/ecpriPcid - * - * @param CU_Port_ID CU Port ID - * @param BanbSector_ID Band Sector ID - * @param CC_ID Component Carrier ID - * @param Ant_ID RU Port ID (antenna ID) - * @return uint16_t composed ecpriRtcid/ecpriPcid (network byte order) - */ -inline uint16_t xran_compose_cid(uint8_t CU_Port_ID, uint8_t BandSector_ID, uint8_t CC_ID, uint8_t Ant_ID) -{ - uint16_t cid; - XRANEAXCIDCONFIG *conf; - - conf = xran_get_conf_eAxC(NULL); - - cid = ((CU_Port_ID << conf->bit_cuPortId) & conf->mask_cuPortId) - | ((BandSector_ID << conf->bit_bandSectorId) & conf->mask_bandSectorId) - | ((CC_ID << conf->bit_ccId) & conf->mask_ccId) - | ((Ant_ID << conf->bit_ruPortId) & conf->mask_ruPortId); - - return (rte_cpu_to_be_16(cid)); -} - -/** - * @brief Decompose ecpriRtcid/ecpriPcid - * - * @param cid composed ecpriRtcid/ecpriPcid (network byte order) - * @param result the pointer of the structure to store decomposed values - * @return none - */ -inline void xran_decompose_cid(uint16_t cid, struct xran_eaxc_info *result) -{ - XRANEAXCIDCONFIG *conf; - - conf = xran_get_conf_eAxC(NULL); - cid = rte_be_to_cpu_16(cid); - - result->cuPortId = (cid&conf->mask_cuPortId) >> conf->bit_cuPortId; - result->bandSectorId = (cid&conf->mask_bandSectorId) >> conf->bit_bandSectorId; - result->ccId = (cid&conf->mask_ccId) >> conf->bit_ccId; - result->ruPortId = (cid&conf->mask_ruPortId) >> conf->bit_ruPortId; - - return; -} - -/** - * @brief modify the payload size of eCPRI header in xRAN packet - * - * @param mbuf Initialized rte_mbuf packet which has eCPRI header already - * @param size payload size to be updated - * @return none - */ -inline void xran_update_ecpri_payload_size(struct rte_mbuf *mbuf, int size) -{ - struct xran_ecpri_hdr *ecpri_hdr; - - ecpri_hdr = rte_pktmbuf_mtod(mbuf, struct xran_ecpri_hdr *); - - ecpri_hdr->ecpri_payl_size = rte_cpu_to_be_16(size); -} - +/****************************************************************************** +* +* 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 for Transport lyaer (eCPRI) API. + * + * @file xran_transport.c + * @ingroup group_lte_source_xran + * @author Intel Corporation + * + **/ + +#include +#include +#include +#include + +#include "xran_fh_o_du.h" +#include "xran_common.h" +#include "xran_transport.h" +#include "xran_pkt_cp.h" +#include "xran_cp_api.h" +#include "xran_up_api.h" +#include "xran_printf.h" + + +/** + * @brief return eCPRI header size without eCPRI common header + * + * @ingroup xran + * + * @return the size of eCPRI header without common header + */ +int xran_get_ecpri_hdr_size(void) +{ + return(sizeof(struct xran_ecpri_hdr) - sizeof(struct xran_ecpri_cmn_hdr)); +} + +/** + * @brief Compose ecpriRtcid/ecpriPcid + * + * @ingroup xran + * + * @param CU_Port_ID CU Port ID + * @param BanbSector_ID Band Sector ID + * @param CC_ID Component Carrier ID + * @param Ant_ID RU Port ID (antenna ID) + * @return uint16_t composed ecpriRtcid/ecpriPcid (network byte order) + */ +uint16_t xran_compose_cid(uint8_t CU_Port_ID, uint8_t BandSector_ID, uint8_t CC_ID, uint8_t Ant_ID) +{ + uint16_t cid; + struct xran_eaxcid_config *conf; + + conf = xran_get_conf_eAxC(NULL); + + cid = ((CU_Port_ID << conf->bit_cuPortId) & conf->mask_cuPortId) + | ((BandSector_ID << conf->bit_bandSectorId) & conf->mask_bandSectorId) + | ((CC_ID << conf->bit_ccId) & conf->mask_ccId) + | ((Ant_ID << conf->bit_ruPortId) & conf->mask_ruPortId); + + return (rte_cpu_to_be_16(cid)); +} + +/** + * @brief Decompose ecpriRtcid/ecpriPcid + * + * @ingroup xran + * + * @param cid composed ecpriRtcid/ecpriPcid (network byte order) + * @param result the pointer of the structure to store decomposed values + * @return none + */ +void xran_decompose_cid(uint16_t cid, struct xran_eaxc_info *result) +{ + struct xran_eaxcid_config *conf; + + conf = xran_get_conf_eAxC(NULL); + cid = rte_be_to_cpu_16(cid); + + result->cuPortId = (cid&conf->mask_cuPortId) >> conf->bit_cuPortId; + result->bandSectorId = (cid&conf->mask_bandSectorId) >> conf->bit_bandSectorId; + result->ccId = (cid&conf->mask_ccId) >> conf->bit_ccId; + result->ruPortId = (cid&conf->mask_ruPortId) >> conf->bit_ruPortId; + + return; +} + +/** + * @brief modify the payload size of eCPRI header in xRAN packet + * + * @ingroup xran + * + * @param mbuf Initialized rte_mbuf packet which has eCPRI header already + * @param size payload size to be updated + * @return none + */ +inline void xran_update_ecpri_payload_size(struct rte_mbuf *mbuf, int size) +{ + struct xran_ecpri_hdr *ecpri_hdr; + + ecpri_hdr = rte_pktmbuf_mtod(mbuf, struct xran_ecpri_hdr *); + + ecpri_hdr->cmnhdr.ecpri_payl_size = rte_cpu_to_be_16(size); +} + + +/** + * @brief Build ECPRI header and returns added length + * + * @ingroup xran + * + * @param mbuf + * The pointer of the packet buffer to be parsed + * @param CC_ID + * Component Carrier ID for this C-Plane message + * @param Ant_ID + * Antenna ID(RU Port ID) for this C-Plane message + * @param seq_id + * Sequence ID for this C-Plane message + * @param ecpri_hdr + * The pointer to ECPRI header + * @return + * added payload size on success + * XRAN_STATUS_RESOURCE if failed to allocate the space to packet buffer + */ +int xran_build_ecpri_hdr(struct rte_mbuf *mbuf, + uint8_t CC_ID, uint8_t Ant_ID, + uint8_t seq_id, + struct xran_ecpri_hdr **ecpri_hdr) +{ + uint32_t payloadlen; + struct xran_ecpri_hdr *tmp; + + + tmp = (struct xran_ecpri_hdr *)rte_pktmbuf_append(mbuf, sizeof(struct xran_ecpri_hdr)); + if(unlikely(tmp == NULL)) { + print_err("Fail to allocate the space for eCPRI hedaer!"); + return (XRAN_STATUS_RESOURCE); + } + + /* Fill common header */ + tmp->cmnhdr.ecpri_ver = XRAN_ECPRI_VER; + tmp->cmnhdr.ecpri_resv = 0; // should be zero + tmp->cmnhdr.ecpri_concat = 0; + tmp->cmnhdr.ecpri_mesg_type = ECPRI_RT_CONTROL_DATA; + tmp->ecpri_xtc_id = xran_compose_cid(0, 0, CC_ID, Ant_ID); + + /* TODO: Transport layer fragmentation is not supported */ + tmp->ecpri_seq_id.seq_id = seq_id; + tmp->ecpri_seq_id.sub_seq_id = 0; + tmp->ecpri_seq_id.e_bit = 1; + + /* Starts with eCPRI header size */ + payloadlen = xran_get_ecpri_hdr_size(); + + *ecpri_hdr = tmp; + + return (payloadlen); +} + +/** + * @brief Parse ECPRI header + * + * @ingroup xran + * + * @param mbuf + * The pointer of the packet buffer to be parsed + * @param ecpri_hdr + * The pointer to ECPRI header + * @param pkt_info + * The pointer of sturcture to store the information from header + * @return + * XRAN_STATUS_SUCCESS on success + * XRAN_STATUS_INVALID_PACKET if failed to parse the packet + */ +int xran_parse_ecpri_hdr(struct rte_mbuf *mbuf, + struct xran_ecpri_hdr **ecpri_hdr, + struct xran_recv_packet_info *pkt_info) +{ + int ret; + + + *ecpri_hdr = rte_pktmbuf_mtod(mbuf, void *); + if(*ecpri_hdr == NULL) { + print_err("Invalid packet - eCPRI hedaer!"); + return (XRAN_STATUS_INVALID_PACKET); + } + + /* Process eCPRI header */ + ret = XRAN_STATUS_SUCCESS; + if((*ecpri_hdr)->cmnhdr.ecpri_ver != XRAN_ECPRI_VER) { + print_err("Invalid eCPRI version - %d", (*ecpri_hdr)->cmnhdr.ecpri_ver); + ret = XRAN_STATUS_INVALID_PACKET; + } + if((*ecpri_hdr)->cmnhdr.ecpri_resv != 0) { + print_err("Invalid reserved field - %d", (*ecpri_hdr)->cmnhdr.ecpri_resv); + ret = XRAN_STATUS_INVALID_PACKET; + } + + if(pkt_info != NULL) { + /* store the information from header */ + pkt_info->ecpri_version = (*ecpri_hdr)->cmnhdr.ecpri_ver; + pkt_info->msg_type = (enum ecpri_msg_type)(*ecpri_hdr)->cmnhdr.ecpri_mesg_type; + pkt_info->payload_len = rte_be_to_cpu_16((*ecpri_hdr)->cmnhdr.ecpri_payl_size); + + pkt_info->seq_id = (*ecpri_hdr)->ecpri_seq_id.seq_id; + pkt_info->subseq_id = (*ecpri_hdr)->ecpri_seq_id.sub_seq_id; + pkt_info->ebit = (*ecpri_hdr)->ecpri_seq_id.e_bit; + xran_decompose_cid((*ecpri_hdr)->ecpri_xtc_id, &(pkt_info->eaxc)); + } + + return (ret); +} +