X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=o-du%2Fphy.git;a=blobdiff_plain;f=fhi_lib%2Flib%2Fsrc%2Fxran_transport.c;h=325616bc30b656443942ab0afaef418a8aaaf9ed;hp=9e1d192536dcd0e212ad162b40ad862ff7bd5e97;hb=cef07f74965b1749dd909fc1322e211489fea2ea;hpb=bc60e3a69129edf1c21a01683f84a77483f6e3cc diff --git a/fhi_lib/lib/src/xran_transport.c b/fhi_lib/lib/src/xran_transport.c index 9e1d192..325616b 100644 --- a/fhi_lib/lib/src/xran_transport.c +++ b/fhi_lib/lib/src/xran_transport.c @@ -16,7 +16,6 @@ * *******************************************************************************/ - /** * @brief This file provides the implementation for Transport lyaer (eCPRI) API. * @@ -31,25 +30,42 @@ #include #include -#include "xran_fh_lls_cu.h" +#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) */ -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 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; + struct xran_eaxcid_config *conf; conf = xran_get_conf_eAxC(NULL); @@ -64,13 +80,15 @@ inline uint16_t xran_compose_cid(uint8_t CU_Port_ID, uint8_t BandSector_ID, uint /** * @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 */ -inline void xran_decompose_cid(uint16_t cid, struct xran_eaxc_info *result) +void xran_decompose_cid(uint16_t cid, struct xran_eaxc_info *result) { - XRANEAXCIDCONFIG *conf; + struct xran_eaxcid_config *conf; conf = xran_get_conf_eAxC(NULL); cid = rte_be_to_cpu_16(cid); @@ -86,6 +104,8 @@ inline void xran_decompose_cid(uint16_t cid, struct xran_eaxc_info *result) /** * @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 @@ -96,6 +116,115 @@ inline void xran_update_ecpri_payload_size(struct rte_mbuf *mbuf, int size) ecpri_hdr = rte_pktmbuf_mtod(mbuf, struct xran_ecpri_hdr *); - ecpri_hdr->ecpri_payl_size = rte_cpu_to_be_16(size); + 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); }