diff --git a/CMakeLists.txt b/CMakeLists.txt index f9f55511a8..9cab7a17cb 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -494,6 +494,25 @@ target_link_libraries(shlib_loader PRIVATE CONFIG_LIB) ########################################################## +# LDPC offload library - AMD T2 Accelerator Card +########################################################## + +add_boolean_option(ENABLE_LDPC_T2 OFF "Build support for LDPC Offload to T2 library" OFF) +set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/usr/local/lib/x86_64-linux-gnu/pkgconfig") +if (ENABLE_LDPC_T2) + pkg_check_modules(LIBDPDK_T2 REQUIRED libdpdk=20.11.7) + find_library(PMD_T2 NAMES rte_baseband_accl_ldpc HINTS "/opt/dpdk-t2/lib/x86_64-linux-gnu/") + if (NOT PMD_T2) + message(FATAL_ERROR "could not find PMD T2") + endif() + message(STATUS "T2 build: use ${PMD_T2}") + add_library(ldpc_t2 MODULE ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_offload.c) + set_target_properties(ldpc_t2 PROPERTIES COMPILE_FLAGS "-DALLOW_EXPERIMENTAL_API") + target_link_libraries(ldpc_t2 ${LIBDPDK_T2_LDFLAGS} ${PMD_T2}) +endif() + +########################################################## + include_directories ("${OPENAIR_DIR}/radio/COMMON") ############################################################## @@ -801,19 +820,30 @@ set(PHY_LDPC_ORIG_SRC ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder.c ) +add_library(ldpc_orig MODULE ${PHY_LDPC_ORIG_SRC} ) +target_link_libraries(ldpc_orig PRIVATE ldpc_gen_HEADERS) set(PHY_LDPC_OPTIM_SRC ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim.c -) + ) +add_library(ldpc_optim MODULE ${PHY_LDPC_OPTIM_SRC} ) +target_link_libraries(ldpc_optim PRIVATE ldpc_gen_HEADERS) + set(PHY_LDPC_OPTIM8SEG_SRC ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8seg.c ) +add_library(ldpc_optim8seg MODULE ${PHY_LDPC_OPTIM8SEG_SRC} ) +target_link_libraries(ldpc_optim8seg PRIVATE ldpc_gen_HEADERS) + set(PHY_LDPC_OPTIM8SEGMULTI_SRC ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8segmulti.c -) + ) +add_library(ldpc MODULE ${PHY_LDPC_OPTIM8SEGMULTI_SRC} ) +target_link_libraries(ldpc PRIVATE ldpc_gen_HEADERS) + set(PHY_LDPC_CUDA_SRC ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_decoder_LYC/nrLDPC_decoder_LYC.cu ${OPENAIR1_DIR}/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8segmulti.c @@ -2057,6 +2087,10 @@ endif() add_dependencies(nr-softmodem ldpc_orig ldpc_optim ldpc_optim8seg ldpc) +if (ENABLE_LDPC_T2) + add_dependencies(nr-softmodem ldpc_t2) +endif() + # force the generation of ASN.1 so that we don't need to wait during the build target_link_libraries(nr-softmodem PRIVATE asn1_lte_rrc asn1_nr_rrc asn1_s1ap asn1_ngap asn1_m2ap asn1_m3ap asn1_x2ap asn1_f1ap asn1_lpp) @@ -2270,6 +2304,10 @@ add_executable(nr_ulsim ${PHY_INTERFACE_DIR}/queue_t.c ) +if (ENABLE_LDPC_T2) + add_dependencies(nr_ulsim ldpc_t2) +endif() + target_link_libraries(nr_ulsim PRIVATE -Wl,--start-group UTIL SIMU SIMU_ETH PHY_COMMON PHY_NR_COMMON PHY_NR PHY_NR_UE SCHED_NR_LIB SCHED_NR_UE_LIB MAC_UE_NR MAC_NR_COMMON nr_rrc CONFIG_LIB L2_NR HASHTABLE x2ap SECURITY ngap -lz -Wl,--end-group m pthread ${T_LIB} ITTI dl shlib_loader diff --git a/cmake_targets/build_oai b/cmake_targets/build_oai index f8ac4692f7..31d54ab9ea 100755 --- a/cmake_targets/build_oai +++ b/cmake_targets/build_oai @@ -46,7 +46,7 @@ BUILD_DOXYGEN=0 DISABLE_HARDWARE_DEPENDENCY="False" CMAKE_BUILD_TYPE="RelWithDebInfo" CMAKE_CMD="$CMAKE" -OPTIONAL_LIBRARIES="telnetsrv enbscope uescope nrscope nrqtscope ldpc_cuda websrv oai_iqplayer" +OPTIONAL_LIBRARIES="telnetsrv enbscope uescope nrscope nrqtscope ldpc_cuda ldpc_t2 websrv oai_iqplayer" TARGET_LIST="" function print_help() { diff --git a/doc/LDPC_T2_OFFLOAD_SETUP.md b/doc/LDPC_T2_OFFLOAD_SETUP.md new file mode 100644 index 0000000000..c8fdbf447a --- /dev/null +++ b/doc/LDPC_T2_OFFLOAD_SETUP.md @@ -0,0 +1,84 @@ + + + + + +
+ + + + + + OAI T1/T2 LDPC offload +
+ +**Table of Contents** + +[[_TOC_]] + +This documentation aims to provide a tutorial for AMD Xilinx T2 Telco card integration into OAI and its usage. +## Prerequisites +Offload of the channel decoding was tested with the T2 card in following setup: + +**AMD Xilinx T2 card** + - bitstream image and PMD driver provided by AccelerComm + - DPDK 20.11.3 with patch from Accelercomm (also tested with DPDK 20.11.7 + version) + - tested on RHEL7.9, RHEL9.2, Ubuntu 20.04, Ubuntu 22.04 + +## DPDK setup + - check the presence of the card on the host + - `lspci | grep "Xilinx"` + - binding of the device with igb_uio driver + - `./dpdk-devbind.py -b igb_uio
` + - hugepages setup (10 x 1GB hugepages) + - `./dpdk-hugepages.py -p 1G --setup 10G` + +*Note: Commands to run from dpdk/usertool folder* + +## Compilation +Deployment of the OAI is precisely described in the following tutorials. + - [BUILD](https://gitlab.eurecom.fr/oai/openairinterface5g/-/blob/develop/doc/BUILD.md) + - [NR_SA_CN5G_gNB_USRP_COTS_UE_Tutorial](https://gitlab.eurecom.fr/oai/openairinterface5g/-/blob/develop/doc/NR_SA_Tutorial_COTS_UE.md) + +Shared object file *libldpc_t2.so* is created during the compilation. This object is conditionally compiled. Selection of the library to compile is done using *--build-lib ldpc_t2*. Example command to build OAI with support for LDPC offload to T2 card is: + +`./build_oai -P --gNB -w USRP --build-lib "ldpc_t2" --ninja` + +*Required poll mode driver has to be present on the host machine and required DPDK version has to be installed on the host, prior to the build of OAI* + +## nr_ulsim test +Offload of the channel decoding to the AMD Xilinx T2 card is in nr_ulsim specified by *-o* option. Example command for running nr_ulsim with LDPC decoding offload to the T2 card: + +`sudo ./nr_ulsim -n100 -s20 -m20 -r273 -o` + +## nr_dlsim test +Offload of the channel encoding to the AMD Xilinx T2 card is in nr_dlsim specified by *-c* option. Example command for running nr_dlsim with LDPC encoding offload to the T2 card: + +`sudo ./nr_dlsim -n300 -s30 -R 106 -e 27 -c` + +## OTA and RFSIM test +Offload of the channel encoding and decoding to the AMD Xilinx T2 card is enabled by *--ldpc-offload-enable 1* option. Example command for running nr-softmodem with LDPC processing on the T2 card: + +`./nr-softmodem -O config_file.conf --sa --ldpc-offload-enable 1` + +### LDPC encoding/decoding with CPU/GPU +Available LDPC implementations and loading particular libraries is well described in *openair1/PHY/CODING/DOC/LDPCImplementation.md*. Default library for LDPC processing is called `libldpc.so`. Sample command for running nr-softmodem with selected library (in this case we want to replace `libldpc.so` by `libldpc_optim.so` library): +`./nr-softmodem -O config_file.conf --sa --loader.ldpc.shlibversion _optim` + +Available options: +- --loader.ldpc.shlibversion _optim8seg +- --loader.ldpc.shlibversion _optim +- --loader.ldpc.shlibversion _orig +- --loader.ldpc.shlibversion _cuda +- --loader.ldpc.shlibversion _cl + +## Limitations +### AMD Xilinx T1 card + - offload of the LDPC decoding implemented only for MCS > 9, decoding of the smaller TBs on the T1 card leads to blocking of the card + - HARQ is not functional with LDPC decoding offload to the T1 card (restricted in the code to avoid blocking of the card) + - LDPC encoding offload not implemented for the T1 card + - not supported in current develop branch, please checkout to *2023.w43* +### AMD Xilinx T2 card + - offload of the LDPC encoding implemented for MCS > 2 + - occasional blocking of the card in decoder function - issue is investigated diff --git a/executables/nr-gnb.c b/executables/nr-gnb.c index e3b7a0402d..3738fa3f28 100644 --- a/executables/nr-gnb.c +++ b/executables/nr-gnb.c @@ -593,6 +593,7 @@ void init_eNB_afterRU(void) { LOG_I(PHY,"RC.nb_nr_CC[inst:%d]:%p\n", inst, RC.gNB[inst]); gNB = RC.gNB[inst]; + gNB->ldpc_offload_flag = ldpc_offload_flag; gNB->reorder_thread_disable = get_softmodem_params()->reorder_thread_disable; phy_init_nr_gNB(gNB); diff --git a/executables/nr-softmodem-common.h b/executables/nr-softmodem-common.h index 19760bdd26..da743e4342 100644 --- a/executables/nr-softmodem-common.h +++ b/executables/nr-softmodem-common.h @@ -98,6 +98,7 @@ #define CONFIG_HLP_WORKER_CMD "two option for worker 'WORKER_DISABLE' or 'WORKER_ENABLE'\n" #define CONFIG_HLP_USRP_THREAD "having extra thead for usrp tx\n" #define CONFIG_HLP_DISABLNBIOT "disable nb-iot, even if defined in config\n" +#define CONFIG_HLP_LDPC_OFFLOAD "enable LDPC offload to AMD Xilinx T2 card\n" #define CONFIG_HLP_USRP_ARGS "set the arguments to identify USRP (same syntax as in UHD)\n" #define CONFIG_HLP_TX_SUBDEV "set the arguments to select tx_subdev (same syntax as in UHD)\n" #define CONFIG_HLP_RX_SUBDEV "set the arguments to select rx_subdev (same syntax as in UHD)\n" diff --git a/executables/nr-softmodem.h b/executables/nr-softmodem.h index e7eed10cff..d4414291df 100644 --- a/executables/nr-softmodem.h +++ b/executables/nr-softmodem.h @@ -29,6 +29,7 @@ {"D" , CONFIG_HLP_DLBM_PHYTEST, 0, .u64ptr=&dlsch_slot_bitmap, .defintval=0, TYPE_UINT64, 0}, \ {"U" , CONFIG_HLP_ULBM_PHYTEST, 0, .u64ptr=&ulsch_slot_bitmap, .defintval=0, TYPE_UINT64, 0}, \ {"usrp-tx-thread-config", CONFIG_HLP_USRP_THREAD, 0, .iptr=&usrp_tx_thread, .defstrval=0, TYPE_INT, 0}, \ + {"ldpc-offload-enable", CONFIG_HLP_LDPC_OFFLOAD, 0, .iptr=&ldpc_offload_flag, .defstrval=0, TYPE_INT, 0}, \ {"uecap_file", CONFIG_HLP_UECAP_FILE, 0, .strptr=&uecap_file, .defstrval="./uecap_ports1.xml", TYPE_STRING, 0}, \ {"s" , CONFIG_HLP_SNR, 0, .dblptr=&snr_dB, .defdblval=25, TYPE_DOUBLE, 0}, \ } @@ -43,6 +44,7 @@ extern uint32_t target_ul_bw; extern uint64_t dlsch_slot_bitmap; extern uint64_t ulsch_slot_bitmap; extern char *uecap_file; +extern int ldpc_offload_flag; // In nr-gnb.c extern void init_gNB(int single_thread_flag,int wait_for_sync); diff --git a/executables/nr-uesoftmodem.c b/executables/nr-uesoftmodem.c index 034eb8a5e5..3a5532af43 100644 --- a/executables/nr-uesoftmodem.c +++ b/executables/nr-uesoftmodem.c @@ -429,7 +429,7 @@ int NB_UE_INST = 1; configmodule_interface_t *uniqCfg = NULL; // A global var to reduce the changes size -ldpc_interface_t ldpc_interface = {0}; +ldpc_interface_t ldpc_interface = {0}, ldpc_interface_offload = {0}; int main( int argc, char **argv ) { int set_exe_prio = 1; diff --git a/executables/softmodem-common.c b/executables/softmodem-common.c index 316a5b14c9..f72d201622 100644 --- a/executables/softmodem-common.c +++ b/executables/softmodem-common.c @@ -47,6 +47,7 @@ char *parallel_config=NULL; char *worker_config=NULL; int usrp_tx_thread = 0; char *nfapi_str=NULL; +int ldpc_offload_flag=0; uint8_t nfapi_mode=0; static mapping softmodem_funcs[] = MAPPING_SOFTMODEM_FUNCTIONS; diff --git a/executables/softmodem-common.h b/executables/softmodem-common.h index 25e4580e7e..e72e4dd824 100644 --- a/executables/softmodem-common.h +++ b/executables/softmodem-common.h @@ -368,6 +368,7 @@ extern int32_t uplink_frequency_offset[MAX_NUM_CCs][4]; extern int usrp_tx_thread; extern uint16_t sl_ahead; extern uint16_t sf_ahead; +extern int ldpc_offload_flag; extern int oai_exit; void tx_func(void *param); diff --git a/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_offload.c b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_offload.c new file mode 100644 index 0000000000..9c08f10f10 --- /dev/null +++ b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder_offload.c @@ -0,0 +1,1140 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2017 Intel Corporation + */ + +/*!\file nrLDPC_decoder_offload.c + * \brief Defines the LDPC decoder + * \author openairinterface + * \date 12-06-2021 + * \version 1.0 + * \note: based on testbbdev test_bbdev_perf.c functions. Harq buffer offset added. + * \mbuf and mempool allocated at the init step, LDPC parameters updated from OAI. + * \warning + */ + +#include +#include "PHY/sse_intrin.h" +#include "nrLDPCdecoder_defs.h" +#include "nrLDPC_types.h" +#include "nrLDPC_init.h" +#include "nrLDPC_mPass.h" +#include "nrLDPC_cnProc.h" +#include "nrLDPC_bnProc.h" +#include +#define NR_LDPC_ENABLE_PARITY_CHECK + +#ifdef NR_LDPC_DEBUG_MODE +#include "nrLDPC_tools/nrLDPC_debug.h" +#endif + +#include "openair1/PHY/CODING/nrLDPC_extern.h" + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include "nrLDPC_offload.h" + +#include + +#include +#include +#include +#include +#include +#include +#include + +// this socket is the NUMA socket, so the hardware CPU id (numa is complex) +#define GET_SOCKET(socket_id) (((socket_id) == SOCKET_ID_ANY) ? 0 : (socket_id)) + +#define MAX_QUEUES 16 + +#define OPS_CACHE_SIZE 256U +#define OPS_POOL_SIZE_MIN 511U /* 0.5K per queue */ + +#define SYNC_WAIT 0 +#define SYNC_START 1 +#define INVALID_OPAQUE -1 +#define TIME_OUT_POLL 1e8 +#define INVALID_QUEUE_ID -1 +/* Increment for next code block in external HARQ memory */ +#define HARQ_INCR 32768 +/* Headroom for filler LLRs insertion in HARQ buffer */ +#define FILLER_HEADROOM 1024 + +pthread_mutex_t encode_mutex; +pthread_mutex_t decode_mutex; + +const char *typeStr[] = { + "RTE_BBDEV_OP_NONE", /**< Dummy operation that does nothing */ + "RTE_BBDEV_OP_TURBO_DEC", /**< Turbo decode */ + "RTE_BBDEV_OP_TURBO_ENC", /**< Turbo encode */ + "RTE_BBDEV_OP_LDPC_DEC", /**< LDPC decode */ + "RTE_BBDEV_OP_LDPC_ENC", /**< LDPC encode */ + "RTE_BBDEV_OP_TYPE_COUNT", /**< Count of different op types */ +}; + +/* Represents tested active devices */ +struct active_device { + const char *driver_name; + uint8_t dev_id; + int dec_queue; + int enc_queue; + uint16_t queue_ids[MAX_QUEUES]; + uint16_t nb_queues; + struct rte_mempool *bbdev_dec_op_pool; + struct rte_mempool *bbdev_enc_op_pool; + struct rte_mempool *in_mbuf_pool; + struct rte_mempool *hard_out_mbuf_pool; + struct rte_mempool *soft_out_mbuf_pool; + struct rte_mempool *harq_in_mbuf_pool; + struct rte_mempool *harq_out_mbuf_pool; +} active_devs[RTE_BBDEV_MAX_DEVS]; +static int nb_active_devs; + +/* Data buffers used by BBDEV ops */ +struct test_buffers { + struct rte_bbdev_op_data *inputs; + struct rte_bbdev_op_data *hard_outputs; + struct rte_bbdev_op_data *soft_outputs; + struct rte_bbdev_op_data *harq_inputs; + struct rte_bbdev_op_data *harq_outputs; +}; + +/* Operation parameters specific for given test case */ +struct test_op_params { + struct rte_mempool *mp_dec; + struct rte_mempool *mp_enc; + struct rte_bbdev_dec_op *ref_dec_op; + struct rte_bbdev_enc_op *ref_enc_op; + uint16_t burst_sz; + uint16_t num_to_process; + uint16_t num_lcores; + int vector_mask; + rte_atomic16_t sync; + struct test_buffers q_bufs[RTE_MAX_NUMA_NODES][MAX_QUEUES]; +}; + +/* Contains per lcore params */ +struct thread_params { + uint8_t dev_id; + uint16_t queue_id; + uint32_t lcore_id; + uint64_t start_time; + double ops_per_sec; + double mbps; + uint8_t iter_count; + double iter_average; + double bler; + struct nrLDPCoffload_params *p_offloadParams; + uint8_t *p_out; + uint8_t r; + uint8_t harq_pid; + uint8_t ulsch_id; + rte_atomic16_t nb_dequeued; + rte_atomic16_t processing_status; + rte_atomic16_t burst_sz; + struct test_op_params *op_params; + struct rte_bbdev_dec_op *dec_ops[MAX_BURST]; + struct rte_bbdev_enc_op *enc_ops[MAX_BURST]; +}; + +// DPDK BBDEV copy +static inline void +mbuf_reset(struct rte_mbuf *m) +{ + m->pkt_len = 0; + + do { + m->data_len = 0; + m = m->next; + } while (m != NULL); +} + +/* Read flag value 0/1 from bitmap */ +// DPDK BBDEV copy +static inline bool +check_bit(uint32_t bitmap, uint32_t bitmask) +{ + return bitmap & bitmask; +} + +/* calculates optimal mempool size not smaller than the val */ +// DPDK BBDEV copy +static unsigned int +optimal_mempool_size(unsigned int val) +{ + return rte_align32pow2(val + 1) - 1; +} + +// DPDK BBDEV modified - sizes passed to the function, use of data_len and nb_segments, remove code related to Soft outputs, HARQ +// inputs, HARQ outputs +static int create_mempools(struct active_device *ad, int socket_id, uint16_t num_ops, int out_buff_sz, int in_max_sz) +{ + unsigned int ops_pool_size, mbuf_pool_size, data_room_size = 0; + uint8_t nb_segments = 1; + ops_pool_size = optimal_mempool_size(RTE_MAX( + /* Ops used plus 1 reference op */ + RTE_MAX((unsigned int)(ad->nb_queues * num_ops + 1), + /* Minimal cache size plus 1 reference op */ + (unsigned int)(1.5 * rte_lcore_count() * OPS_CACHE_SIZE + 1)), + OPS_POOL_SIZE_MIN)); + + /* Decoder ops mempool */ + ad->bbdev_dec_op_pool = rte_bbdev_op_pool_create("bbdev_op_pool_dec", RTE_BBDEV_OP_LDPC_DEC, + /* Encoder ops mempool */ ops_pool_size, OPS_CACHE_SIZE, socket_id); + ad->bbdev_enc_op_pool = rte_bbdev_op_pool_create("bbdev_op_pool_enc", RTE_BBDEV_OP_LDPC_ENC, + ops_pool_size, OPS_CACHE_SIZE, socket_id); + + if ((ad->bbdev_dec_op_pool == NULL) || (ad->bbdev_enc_op_pool == NULL)) + TEST_ASSERT_NOT_NULL(NULL, "ERROR Failed to create %u items ops pool for dev %u on socket %d.", + ops_pool_size, ad->dev_id, socket_id); + + /* Inputs */ + mbuf_pool_size = optimal_mempool_size(ops_pool_size * nb_segments); + data_room_size = RTE_MAX(in_max_sz + RTE_PKTMBUF_HEADROOM + FILLER_HEADROOM, (unsigned int)RTE_MBUF_DEFAULT_BUF_SIZE); + ad->in_mbuf_pool = rte_pktmbuf_pool_create("in_mbuf_pool", mbuf_pool_size, 0, 0, data_room_size, socket_id); + TEST_ASSERT_NOT_NULL(ad->in_mbuf_pool, + "ERROR Failed to create %u items input pktmbuf pool for dev %u on socket %d.", + mbuf_pool_size, ad->dev_id, socket_id); + + /* Hard outputs */ + data_room_size = RTE_MAX(out_buff_sz + RTE_PKTMBUF_HEADROOM + FILLER_HEADROOM, (unsigned int)RTE_MBUF_DEFAULT_BUF_SIZE); + ad->hard_out_mbuf_pool = rte_pktmbuf_pool_create("hard_out_mbuf_pool", mbuf_pool_size, 0, 0, data_room_size, socket_id); + TEST_ASSERT_NOT_NULL(ad->hard_out_mbuf_pool, + "ERROR Failed to create %u items hard output pktmbuf pool for dev %u on socket %d.", + mbuf_pool_size, ad->dev_id, socket_id); + return 0; +} + +const char *ldpcenc_flag_bitmask[] = { + /** Set for bit-level interleaver bypass on output stream. */ + "RTE_BBDEV_LDPC_INTERLEAVER_BYPASS", + /** If rate matching is to be performed */ + "RTE_BBDEV_LDPC_RATE_MATCH", + /** Set for transport block CRC-24A attach */ + "RTE_BBDEV_LDPC_CRC_24A_ATTACH", + /** Set for code block CRC-24B attach */ + "RTE_BBDEV_LDPC_CRC_24B_ATTACH", + /** Set for code block CRC-16 attach */ + "RTE_BBDEV_LDPC_CRC_16_ATTACH", + /** Set if a device supports encoder dequeue interrupts. */ + "RTE_BBDEV_LDPC_ENC_INTERRUPTS", + /** Set if a device supports scatter-gather functionality. */ + "RTE_BBDEV_LDPC_ENC_SCATTER_GATHER", + /** Set if a device supports concatenation of non byte aligned output */ + "RTE_BBDEV_LDPC_ENC_CONCATENATION", +}; + +const char *ldpcdec_flag_bitmask[] = { + /** Set for transport block CRC-24A checking */ + "RTE_BBDEV_LDPC_CRC_TYPE_24A_CHECK", + /** Set for code block CRC-24B checking */ + "RTE_BBDEV_LDPC_CRC_TYPE_24B_CHECK", + /** Set to drop the last CRC bits decoding output */ + "RTE_BBDEV_LDPC_CRC_TYPE_24B_DROP" + /** Set for bit-level de-interleaver bypass on Rx stream. */ + "RTE_BBDEV_LDPC_DEINTERLEAVER_BYPASS", + /** Set for HARQ combined input stream enable. */ + "RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE", + /** Set for HARQ combined output stream enable. */ + "RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE", + /** Set for LDPC decoder bypass. + * RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE must be set. + */ + "RTE_BBDEV_LDPC_DECODE_BYPASS", + /** Set for soft-output stream enable */ + "RTE_BBDEV_LDPC_SOFT_OUT_ENABLE", + /** Set for Rate-Matching bypass on soft-out stream. */ + "RTE_BBDEV_LDPC_SOFT_OUT_RM_BYPASS", + /** Set for bit-level de-interleaver bypass on soft-output stream. */ + "RTE_BBDEV_LDPC_SOFT_OUT_DEINTERLEAVER_BYPASS", + /** Set for iteration stopping on successful decode condition + * i.e. a successful syndrome check. + */ + "RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE", + /** Set if a device supports decoder dequeue interrupts. */ + "RTE_BBDEV_LDPC_DEC_INTERRUPTS", + /** Set if a device supports scatter-gather functionality. */ + "RTE_BBDEV_LDPC_DEC_SCATTER_GATHER", + /** Set if a device supports input/output HARQ compression. */ + "RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION", + /** Set if a device supports input LLR compression. */ + "RTE_BBDEV_LDPC_LLR_COMPRESSION", + /** Set if a device supports HARQ input from + * device's internal memory. + */ + "RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE", + /** Set if a device supports HARQ output to + * device's internal memory. + */ + "RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE", + /** Set if a device supports loop-back access to + * HARQ internal memory. Intended for troubleshooting. + */ + "RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_LOOPBACK", + /** Set if a device includes LLR filler bits in the circular buffer + * for HARQ memory. If not set, it is assumed the filler bits are not + * in HARQ memory and handled directly by the LDPC decoder. + */ + "RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_FILLERS", +}; + +// DPDK BBDEV modified - in DPDK this function is named add_bbdev_dev, removed code for RTE_BASEBAND_ACC100, IMO we can also remove +// RTE_LIBRTE_PMD_BBDEV_FPGA_LTE_FEC and RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC - to be checked +static int add_dev(uint8_t dev_id, struct rte_bbdev_info *info) +{ + int ret; + struct active_device *ad = &active_devs[nb_active_devs]; + unsigned int nb_queues; + nb_queues = RTE_MIN(rte_lcore_count(), info->drv.max_num_queues); + nb_queues = RTE_MIN(nb_queues, (unsigned int)MAX_QUEUES); + + /* Display for debug the capabilities of the card */ + for (int i = 0; info->drv.capabilities[i].type != RTE_BBDEV_OP_NONE; i++) { + printf("device: %d, capability[%d]=%s\n", dev_id, i, typeStr[info->drv.capabilities[i].type]); + if (info->drv.capabilities[i].type == RTE_BBDEV_OP_LDPC_ENC) { + const struct rte_bbdev_op_cap_ldpc_enc cap = info->drv.capabilities[i].cap.ldpc_enc; + printf(" buffers: src = %d, dst = %d\n capabilites: ", cap.num_buffers_src, cap.num_buffers_dst); + for (int j = 0; j < sizeof(cap.capability_flags) * 8; j++) + if (cap.capability_flags & (1ULL << j)) + printf("%s ", ldpcenc_flag_bitmask[j]); + printf("\n"); + } + if (info->drv.capabilities[i].type == RTE_BBDEV_OP_LDPC_DEC) { + const struct rte_bbdev_op_cap_ldpc_dec cap = info->drv.capabilities[i].cap.ldpc_dec; + printf(" buffers: src = %d, hard out = %d, soft_out %d, llr size %d, llr decimals %d \n capabilities: ", + cap.num_buffers_src, + cap.num_buffers_hard_out, + cap.num_buffers_soft_out, + cap.llr_size, + cap.llr_decimals); + for (int j = 0; j < sizeof(cap.capability_flags) * 8; j++) + if (cap.capability_flags & (1ULL << j)) + printf("%s ", ldpcdec_flag_bitmask[j]); + printf("\n"); + } + } + + /* setup device */ + ret = rte_bbdev_setup_queues(dev_id, nb_queues, info->socket_id); + if (ret < 0) { + printf("rte_bbdev_setup_queues(%u, %u, %d) ret %i\n", dev_id, nb_queues, info->socket_id, ret); + return TEST_FAILED; + } + + /* setup device queues */ + struct rte_bbdev_queue_conf qconf = { + .socket = info->socket_id, + .queue_size = info->drv.default_queue_conf.queue_size, + }; + + // Search a queue linked to HW capability ldpc decoding + qconf.op_type = RTE_BBDEV_OP_LDPC_ENC; + int queue_id; + for (queue_id = 0; queue_id < nb_queues; ++queue_id) { + ret = rte_bbdev_queue_configure(dev_id, queue_id, &qconf); + if (ret == 0) { + printf("Found LDCP encoding queue (id=%u) at prio%u on dev%u\n", queue_id, qconf.priority, dev_id); + qconf.priority++; + //ret = rte_bbdev_queue_configure(ad->dev_id, queue_id, &qconf); + ad->enc_queue = queue_id; + ad->queue_ids[queue_id] = queue_id; + break; + } + } + TEST_ASSERT(queue_id != nb_queues, "ERROR Failed to configure encoding queues on dev %u", dev_id); + + // Search a queue linked to HW capability ldpc encoding + qconf.op_type = RTE_BBDEV_OP_LDPC_DEC; + for (queue_id++; queue_id < nb_queues; ++queue_id) { + ret = rte_bbdev_queue_configure(dev_id, queue_id, &qconf); + if (ret == 0) { + printf("Found LDCP decoding queue (id=%u) at prio%u on dev%u\n", queue_id, qconf.priority, dev_id); + qconf.priority++; + //ret = rte_bbdev_queue_configure(ad->dev_id, queue_id, &qconf); + ad->dec_queue = queue_id; + ad->queue_ids[queue_id] = queue_id; + break; + } + } + TEST_ASSERT(queue_id != nb_queues, "ERROR Failed to configure encoding queues on dev %u", dev_id); + ad->nb_queues = 2; + return TEST_SUCCESS; +} + +// DPDK BBDEV modified - nb_segments used, we are not using struct op_data_entries *ref_entries, but struct rte_mbuf *m_head, +// rte_pktmbuf_reset(m_head) added? if ((op_type == DATA_INPUT) || (op_type == DATA_HARQ_INPUT)) -> no code in else? +static int init_op_data_objs(struct rte_bbdev_op_data *bufs, + uint8_t *input, + uint32_t data_len, + struct rte_mbuf *m_head, + struct rte_mempool *mbuf_pool, + const uint16_t n, + enum op_data_type op_type, + uint16_t min_alignment) +{ + int ret; + unsigned int i, j; + bool large_input = false; + uint8_t nb_segments = 1; + for (i = 0; i < n; ++i) { + char *data; + if (data_len > RTE_BBDEV_LDPC_E_MAX_MBUF) { + /* + * Special case when DPDK mbuf cannot handle + * the required input size + */ + printf("Warning: Larger input size than DPDK mbuf %u\n", data_len); + large_input = true; + } + bufs[i].data = m_head; + bufs[i].offset = 0; + bufs[i].length = 0; + + if ((op_type == DATA_INPUT) || (op_type == DATA_HARQ_INPUT)) { + if ((op_type == DATA_INPUT) && large_input) { + /* Allocate a fake overused mbuf */ + data = rte_malloc(NULL, data_len, 0); + TEST_ASSERT_NOT_NULL(data, "rte malloc failed with %u bytes", data_len); + memcpy(data, input, data_len); + m_head->buf_addr = data; + m_head->buf_iova = rte_malloc_virt2iova(data); + m_head->data_off = 0; + m_head->data_len = data_len; + } else { + // rte_pktmbuf_reset added + rte_pktmbuf_reset(m_head); + data = rte_pktmbuf_append(m_head, data_len); + + TEST_ASSERT_NOT_NULL(data, "Couldn't append %u bytes to mbuf from %d data type mbuf pool", data_len, op_type); + + TEST_ASSERT(data == RTE_PTR_ALIGN(data, min_alignment), + "Data addr in mbuf (%p) is not aligned to device min alignment (%u)", + data, + min_alignment); + rte_memcpy(data, input, data_len); + } + + bufs[i].length += data_len; + + for (j = 1; j < nb_segments; ++j) { + struct rte_mbuf *m_tail = rte_pktmbuf_alloc(mbuf_pool); + TEST_ASSERT_NOT_NULL(m_tail, + "Not enough mbufs in %d data type mbuf pool (needed %d, available %u)", + op_type, + n * nb_segments, + mbuf_pool->size); + + data = rte_pktmbuf_append(m_tail, data_len); + TEST_ASSERT_NOT_NULL(data, "Couldn't append %u bytes to mbuf from %d data type mbuf pool", data_len, op_type); + + TEST_ASSERT(data == RTE_PTR_ALIGN(data, min_alignment), + "Data addr in mbuf (%p) is not aligned to device min alignment (%u)", + data, + min_alignment); + rte_memcpy(data, input, data_len); + bufs[i].length += data_len; + + ret = rte_pktmbuf_chain(m_head, m_tail); + TEST_ASSERT_SUCCESS(ret, "Couldn't chain mbufs from %d data type mbuf pool", op_type); + } + } else { + /* allocate chained-mbuf for output buffer */ + /*for (j = 1; j < nb_segments; ++j) { + struct rte_mbuf *m_tail = + rte_pktmbuf_alloc(mbuf_pool); + TEST_ASSERT_NOT_NULL(m_tail, + "Not enough mbufs in %d data type mbuf pool (needed %u, available %u)", + op_type, + n * nb_segments, + mbuf_pool->size); + + ret = rte_pktmbuf_chain(m_head, m_tail); + TEST_ASSERT_SUCCESS(ret, + "Couldn't chain mbufs from %d data type mbuf pool", + op_type); + }*/ + } + } + + return 0; +} + +// DPDK BBEV copy +static int allocate_buffers_on_socket(struct rte_bbdev_op_data **buffers, const int len, const int socket) +{ + int i; + + *buffers = rte_zmalloc_socket(NULL, len, 0, socket); + if (*buffers == NULL) { + printf("WARNING: Failed to allocate op_data on socket %d\n", socket); + /* try to allocate memory on other detected sockets */ + for (i = 0; i < socket; i++) { + *buffers = rte_zmalloc_socket(NULL, len, 0, i); + if (*buffers != NULL) + break; + } + } + + return (*buffers == NULL) ? TEST_FAILED : TEST_SUCCESS; +} + +// DPDK BBDEV copy +static void +free_buffers(struct active_device *ad, struct test_op_params *op_params) +{ + rte_mempool_free(ad->bbdev_dec_op_pool); + rte_mempool_free(ad->bbdev_enc_op_pool); + rte_mempool_free(ad->in_mbuf_pool); + rte_mempool_free(ad->hard_out_mbuf_pool); + rte_mempool_free(ad->soft_out_mbuf_pool); + rte_mempool_free(ad->harq_in_mbuf_pool); + rte_mempool_free(ad->harq_out_mbuf_pool); + + for (int i = 0; i < rte_lcore_count(); ++i) { + for (int j = 0; j < RTE_MAX_NUMA_NODES; ++j) { + rte_free(op_params->q_bufs[j][i].inputs); + rte_free(op_params->q_bufs[j][i].hard_outputs); + rte_free(op_params->q_bufs[j][i].soft_outputs); + rte_free(op_params->q_bufs[j][i].harq_inputs); + rte_free(op_params->q_bufs[j][i].harq_outputs); + } + } +} + +// OAI / DPDK BBDEV modified - in DPDK named copy_reference_dec_op, here we are passing t_nrLDPCoffload_params *p_offloadParams to +// the function, check what is value of n, commented code for code block mode +static void +set_ldpc_dec_op(struct rte_bbdev_dec_op **ops, unsigned int n, + unsigned int start_idx, + struct test_buffers *bufs, + struct rte_bbdev_dec_op *ref_op, + uint8_t r, + uint8_t harq_pid, + uint8_t ulsch_id, + t_nrLDPCoffload_params *p_offloadParams) +{ + unsigned int i; + for (i = 0; i < n; ++i) { + ops[i]->ldpc_dec.cb_params.e = p_offloadParams->E; + ops[i]->ldpc_dec.basegraph = p_offloadParams->BG; + ops[i]->ldpc_dec.z_c = p_offloadParams->Z; + ops[i]->ldpc_dec.q_m = p_offloadParams->Qm; + ops[i]->ldpc_dec.n_filler = p_offloadParams->F; + ops[i]->ldpc_dec.n_cb = p_offloadParams->n_cb; + ops[i]->ldpc_dec.iter_max = 20; + ops[i]->ldpc_dec.rv_index = p_offloadParams->rv; + ops[i]->ldpc_dec.op_flags = RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE | + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE | + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE | + RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE; + if (ops[i]->ldpc_dec.rv_index != 0) { + ops[i]->ldpc_dec.op_flags |= RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE; + } + ops[i]->ldpc_dec.code_block_mode = 1; // ldpc_dec->code_block_mode; + ops[i]->ldpc_dec.harq_combined_input.offset = ulsch_id * (32 * 1024 * 1024) + harq_pid * (2 * 1024 * 1024) + r * (1024 * 32); + ops[i]->ldpc_dec.harq_combined_output.offset = ulsch_id * (32 * 1024 * 1024) + harq_pid * (2 * 1024 * 1024) + r * (1024 * 32); + + if (bufs->hard_outputs != NULL) + ops[i]->ldpc_dec.hard_output = bufs->hard_outputs[start_idx + i]; + if (bufs->inputs != NULL) + ops[i]->ldpc_dec.input = bufs->inputs[start_idx + i]; + if (bufs->soft_outputs != NULL) + ops[i]->ldpc_dec.soft_output = bufs->soft_outputs[start_idx + i]; + if (bufs->harq_inputs != NULL) + ops[i]->ldpc_dec.harq_combined_input = bufs->harq_inputs[start_idx + i]; + if (bufs->harq_outputs != NULL) + ops[i]->ldpc_dec.harq_combined_output = bufs->harq_outputs[start_idx + i]; + } +} + +static void set_ldpc_enc_op(struct rte_bbdev_enc_op **ops, + unsigned int n, + unsigned int start_idx, + struct rte_bbdev_op_data *inputs, + struct rte_bbdev_op_data *outputs, + struct rte_bbdev_enc_op *ref_op, + t_nrLDPCoffload_params *p_offloadParams) +{ + // struct rte_bbdev_op_ldpc_enc *ldpc_enc = &ref_op->ldpc_enc; + for (int i = 0; i < n; ++i) { + ops[i]->ldpc_enc.cb_params.e = 3 * p_offloadParams->E; // Fix mee: what is the correct size for "e" ??? + ops[i]->ldpc_enc.basegraph = p_offloadParams->BG; + ops[i]->ldpc_enc.z_c = p_offloadParams->Z; + ops[i]->ldpc_enc.q_m = p_offloadParams->Qm; + ops[i]->ldpc_enc.n_filler = p_offloadParams->F; + ops[i]->ldpc_enc.n_cb = p_offloadParams->n_cb; + ops[i]->ldpc_enc.rv_index = p_offloadParams->rv; + ops[i]->ldpc_enc.op_flags = RTE_BBDEV_LDPC_INTERLEAVER_BYPASS; // RTE_BBDEV_LDPC_RATE_MATCH; + ops[i]->ldpc_enc.code_block_mode = 1; + ops[i]->ldpc_enc.output = outputs[start_idx + i]; + ops[i]->ldpc_enc.input = inputs[start_idx + i]; + } +} + +// DPDK BBDEV modified - in DPDK called validate_dec_op, int8_t* p_out added, remove code related to op_data_entries, turbo_dec +// replaced by ldpc_dec, removed coderelated to soft_output, memcpy(p_out, data+m->data_off, data_len) +static int retrieve_ldpc_dec_op(struct rte_bbdev_dec_op **ops, + const uint16_t n, + struct rte_bbdev_dec_op *ref_op, + const int vector_mask, + uint8_t *p_out) +{ + struct rte_bbdev_op_data *hard_output; + struct rte_mbuf *m; + unsigned int i; + char *data; + for (i = 0; i < n; ++i) { + hard_output = &ops[i]->ldpc_dec.hard_output; + m = hard_output->data; + uint16_t data_len = rte_pktmbuf_data_len(m) - hard_output->offset; + data = m->buf_addr; + memcpy(p_out, data + m->data_off, data_len); + } + return 0; +} + +static int retrieve_ldpc_enc_op(struct rte_bbdev_enc_op **ops, const uint16_t n, struct rte_bbdev_enc_op *ref_op, uint8_t *p_out) +{ + struct rte_bbdev_op_data *output; + struct rte_mbuf *m; + unsigned int i; + char *data; + for (i = 0; i < n; ++i) { + output = &ops[i]->ldpc_enc.output; + m = output->data; + uint16_t data_len = min((384 * 68) / 8, rte_pktmbuf_data_len(m)); // fix me + data = m->buf_addr; + for (int byte = 0; byte < data_len; byte++) + for (int bit = 0; bit < 8; bit++) + p_out[byte * 8 + bit] = (data[m->data_off + byte] >> (7 - bit)) & 1; + } + return 0; +} + +// DPDK BBDEV copy +static int init_test_op_params(struct test_op_params *op_params, + enum rte_bbdev_op_type op_type, + struct rte_mempool *ops_mp, + uint16_t burst_sz, + uint16_t num_to_process, + uint16_t num_lcores) +{ + int ret = 0; + if (op_type == RTE_BBDEV_OP_LDPC_DEC) { + ret = rte_bbdev_dec_op_alloc_bulk(ops_mp, &op_params->ref_dec_op, 1); + op_params->mp_dec = ops_mp; + } else { + ret = rte_bbdev_enc_op_alloc_bulk(ops_mp, &op_params->ref_enc_op, 1); + op_params->mp_enc = ops_mp; + } + + TEST_ASSERT_SUCCESS(ret, "rte_bbdev_op_alloc_bulk() failed"); + + op_params->burst_sz = burst_sz; + op_params->num_to_process = num_to_process; + op_params->num_lcores = num_lcores; + return 0; +} + +// DPDK BBDEV modified - in DPDK called throughput_pmd_lcore_ldpc_dec, code related to extDdr removed +static int +pmd_lcore_ldpc_dec(void *arg) +{ + struct thread_params *tp = arg; + uint16_t enq, deq; + const uint16_t queue_id = tp->queue_id; + const uint16_t burst_sz = tp->op_params->burst_sz; + const uint16_t num_ops = tp->op_params->num_to_process; + struct rte_bbdev_dec_op *ops_enq[num_ops]; + struct rte_bbdev_dec_op *ops_deq[num_ops]; + struct rte_bbdev_dec_op *ref_op = tp->op_params->ref_dec_op; + uint8_t r = tp->r; + uint8_t harq_pid = tp->harq_pid; + uint8_t ulsch_id = tp->ulsch_id; + struct test_buffers *bufs = NULL; + int i, j, ret; + struct rte_bbdev_info info; + uint16_t num_to_enq; + uint8_t *p_out = tp->p_out; + t_nrLDPCoffload_params *p_offloadParams = tp->p_offloadParams; + + TEST_ASSERT_SUCCESS((burst_sz > MAX_BURST), "BURST_SIZE should be <= %u", MAX_BURST); + rte_bbdev_info_get(tp->dev_id, &info); + + bufs = &tp->op_params->q_bufs[GET_SOCKET(info.socket_id)][queue_id]; + while (rte_atomic16_read(&tp->op_params->sync) == SYNC_WAIT) + rte_pause(); + ret = rte_mempool_get_bulk(tp->op_params->mp_dec, (void **)ops_enq, num_ops); + // looks like a bbdev internal error for the free operation, workaround here + ops_enq[0]->mempool = tp->op_params->mp_dec; + // ret = rte_bbdev_dec_op_alloc_bulk(tp->op_params->mp, ops_enq, num_ops); + TEST_ASSERT_SUCCESS(ret, "Allocation failed for %d ops", num_ops); + + set_ldpc_dec_op(ops_enq, + num_ops, + 0, + bufs, + ref_op, + r, + harq_pid, + ulsch_id, + p_offloadParams); + + /* Set counter to validate the ordering */ + for (j = 0; j < num_ops; ++j) + ops_enq[j]->opaque_data = (void *)(uintptr_t)j; + + for (enq = 0, deq = 0; enq < num_ops;) { + num_to_enq = burst_sz; + if (unlikely(num_ops - enq < num_to_enq)) + num_to_enq = num_ops - enq; + + enq += rte_bbdev_enqueue_ldpc_dec_ops(tp->dev_id, queue_id, &ops_enq[enq], num_to_enq); + deq += rte_bbdev_dequeue_ldpc_dec_ops(tp->dev_id, queue_id, &ops_deq[deq], enq - deq); + } + + /* dequeue the remaining */ + int time_out = 0; + while (deq < enq) { + deq += rte_bbdev_dequeue_ldpc_dec_ops(tp->dev_id, queue_id, &ops_deq[deq], enq - deq); + time_out++; + DevAssert(time_out <= TIME_OUT_POLL); + } + + // This if statement is not in DPDK + if (deq == enq) { + tp->iter_count = 0; + /* get the max of iter_count for all dequeued ops */ + for (i = 0; i < num_ops; ++i) { + tp->iter_count = RTE_MAX(ops_enq[i]->ldpc_dec.iter_count, tp->iter_count); + } + ret = retrieve_ldpc_dec_op(ops_deq, num_ops, ref_op, tp->op_params->vector_mask, p_out); + TEST_ASSERT_SUCCESS(ret, "Validation failed!"); + } + + if (num_ops > 0) + rte_mempool_put_bulk(ops_enq[0]->mempool, (void **)ops_enq, num_ops); + + // Return the worst decoding number of iterations for all segments + return tp->iter_count; +} + +// DPDK BBDEV copy - in DPDK called throughput_pmd_lcore_ldpc_enc +static int pmd_lcore_ldpc_enc(void *arg) +{ + struct thread_params *tp = arg; + uint16_t enq, deq; + const uint16_t queue_id = tp->queue_id; + const uint16_t burst_sz = tp->op_params->burst_sz; + const uint16_t num_ops = tp->op_params->num_to_process; + struct rte_bbdev_enc_op *ops_enq[num_ops]; + struct rte_bbdev_enc_op *ops_deq[num_ops]; + struct rte_bbdev_enc_op *ref_op = tp->op_params->ref_enc_op; + int j, ret; + uint16_t num_to_enq; + uint8_t *p_out = tp->p_out; + t_nrLDPCoffload_params *p_offloadParams = tp->p_offloadParams; + + TEST_ASSERT_SUCCESS((burst_sz > MAX_BURST), "BURST_SIZE should be <= %u", MAX_BURST); + + struct rte_bbdev_info info; + rte_bbdev_info_get(tp->dev_id, &info); + + TEST_ASSERT_SUCCESS((num_ops > info.drv.queue_size_lim), "NUM_OPS cannot exceed %u for this device", info.drv.queue_size_lim); + + struct test_buffers *bufs = &tp->op_params->q_bufs[GET_SOCKET(info.socket_id)][queue_id]; + + while (rte_atomic16_read(&tp->op_params->sync) == SYNC_WAIT) + rte_pause(); + + ret = rte_mempool_get_bulk(tp->op_params->mp_enc, (void **)ops_enq, num_ops); + // ret = rte_bbdev_enc_op_alloc_bulk(tp->op_params->mp, ops_enq, num_ops); + TEST_ASSERT_SUCCESS(ret, "Allocation failed for %d ops", num_ops); + ops_enq[0]->mempool = tp->op_params->mp_enc; + + set_ldpc_enc_op(ops_enq, num_ops, 0, bufs->inputs, bufs->hard_outputs, ref_op, p_offloadParams); + + /* Set counter to validate the ordering */ + for (j = 0; j < num_ops; ++j) + ops_enq[j]->opaque_data = (void *)(uintptr_t)j; + + for (j = 0; j < num_ops; ++j) + mbuf_reset(ops_enq[j]->ldpc_enc.output.data); + + for (enq = 0, deq = 0; enq < num_ops;) { + num_to_enq = burst_sz; + if (unlikely(num_ops - enq < num_to_enq)) + num_to_enq = num_ops - enq; + + enq += rte_bbdev_enqueue_ldpc_enc_ops(tp->dev_id, queue_id, &ops_enq[enq], num_to_enq); + deq += rte_bbdev_dequeue_ldpc_enc_ops(tp->dev_id, queue_id, &ops_deq[deq], enq - deq); + } + /* dequeue the remaining */ + int time_out = 0; + while (deq < enq) { + deq += rte_bbdev_dequeue_ldpc_enc_ops(tp->dev_id, queue_id, &ops_deq[deq], enq - deq); + time_out++; + DevAssert(time_out <= TIME_OUT_POLL); + } + + ret = retrieve_ldpc_enc_op(ops_deq, num_ops, ref_op, p_out); + TEST_ASSERT_SUCCESS(ret, "Validation failed!"); + // rte_bbdev_enc_op_free_bulk(ops_enq, num_ops); + + if (num_ops > 0) + rte_mempool_put_bulk(ops_enq[0]->mempool, (void **)ops_enq, num_ops); + + return ret; +} + + +/* + * Test function that determines how long an enqueue + dequeue of a burst + * takes on available lcores. + */ +// OAI / DPDK BBDEV modified - in DPDK called throughput_test, here we pass more parameters to the function (t_nrLDPCoffload_params +// *p_offloadParams, uint8_t r, ...), many commented lines Removed code which specified which function to use based on the op_type, +// now we are using only pmd_lcore_ldpc_dec for RTE_BBDEV_OP_LDPC_DEC op type. Encoder is RTE_BBDEV_OP_LDPC_ENC op type, +// pmd_lcore_ldpc_enc to be implemented. +int start_pmd_dec(struct active_device *ad, + struct test_op_params *op_params, + t_nrLDPCoffload_params *p_offloadParams, + uint8_t r, + uint8_t harq_pid, + uint8_t ulsch_id, + uint8_t *p_out) +{ + int ret; + unsigned int lcore_id, used_cores = 0; + // struct rte_bbdev_info info; + uint16_t num_lcores; + // rte_bbdev_info_get(ad->dev_id, &info); + /* Set number of lcores */ + num_lcores = (ad->nb_queues < (op_params->num_lcores)) ? ad->nb_queues : op_params->num_lcores; + /* Allocate memory for thread parameters structure */ + struct thread_params *t_params = rte_zmalloc(NULL, num_lcores * sizeof(struct thread_params), RTE_CACHE_LINE_SIZE); + TEST_ASSERT_NOT_NULL(t_params, + "Failed to alloc %zuB for t_params", + RTE_ALIGN(sizeof(struct thread_params) * num_lcores, RTE_CACHE_LINE_SIZE)); + rte_atomic16_set(&op_params->sync, SYNC_WAIT); + + /* Master core is set at first entry */ + t_params[0].dev_id = ad->dev_id; + t_params[0].lcore_id = 15; + t_params[0].op_params = op_params; + t_params[0].queue_id = ad->dec_queue; + used_cores++; + t_params[0].iter_count = 0; + t_params[0].p_out = p_out; + t_params[0].p_offloadParams = p_offloadParams; + t_params[0].r = r; + t_params[0].harq_pid = harq_pid; + t_params[0].ulsch_id = ulsch_id; + + // For now, we never enter here, we don't use the DPDK thread pool + RTE_LCORE_FOREACH_WORKER(lcore_id) { + if (used_cores >= num_lcores) + break; + t_params[used_cores].dev_id = ad->dev_id; + t_params[used_cores].lcore_id = lcore_id; + t_params[used_cores].op_params = op_params; + t_params[used_cores].queue_id = ad->queue_ids[used_cores]; + t_params[used_cores].iter_count = 0; + t_params[used_cores].p_out = p_out; + t_params[used_cores].p_offloadParams = p_offloadParams; + t_params[used_cores].r = r; + t_params[used_cores].harq_pid = harq_pid; + t_params[used_cores].ulsch_id = ulsch_id; + rte_eal_remote_launch(pmd_lcore_ldpc_dec, &t_params[used_cores++], lcore_id); + } + + rte_atomic16_set(&op_params->sync, SYNC_START); + + ret = pmd_lcore_ldpc_dec(&t_params[0]); + + /* Master core is always used */ + // for (used_cores = 1; used_cores < num_lcores; used_cores++) + // ret |= rte_eal_wait_lcore(t_params[used_cores].lcore_id); + + /* Return if test failed */ + if (ret < 0) { + rte_free(t_params); + return ret; + } + + rte_free(t_params); + return ret; +} + +int32_t start_pmd_enc(struct active_device *ad, + struct test_op_params *op_params, + t_nrLDPCoffload_params *p_offloadParams, + uint8_t *p_out) +{ + int ret; + unsigned int lcore_id, used_cores = 0; + + uint16_t num_lcores; + num_lcores = (ad->nb_queues < (op_params->num_lcores)) ? ad->nb_queues : op_params->num_lcores; + /* Allocate memory for thread parameters structure */ + struct thread_params *t_params = rte_zmalloc(NULL, num_lcores * sizeof(struct thread_params), RTE_CACHE_LINE_SIZE); + TEST_ASSERT_NOT_NULL(t_params, + "Failed to alloc %zuB for t_params", + RTE_ALIGN(sizeof(struct thread_params) * num_lcores, RTE_CACHE_LINE_SIZE)); + rte_atomic16_set(&op_params->sync, SYNC_WAIT); + + /* Master core is set at first entry */ + t_params[0].dev_id = ad->dev_id; + t_params[0].lcore_id = 14; + t_params[0].op_params = op_params; + // t_params[0].queue_id = ad->queue_ids[used_cores++]; + used_cores++; + t_params[0].queue_id = ad->enc_queue; + t_params[0].iter_count = 0; + t_params[0].p_out = p_out; + t_params[0].p_offloadParams = p_offloadParams; + + // For now, we never enter here, we don't use the DPDK thread pool + RTE_LCORE_FOREACH_WORKER(lcore_id) { + if (used_cores >= num_lcores) + break; + t_params[used_cores].dev_id = ad->dev_id; + t_params[used_cores].lcore_id = lcore_id; + t_params[used_cores].op_params = op_params; + t_params[used_cores].queue_id = ad->queue_ids[1]; + t_params[used_cores].iter_count = 0; + rte_eal_remote_launch(pmd_lcore_ldpc_enc, &t_params[used_cores++], lcore_id); + } + + rte_atomic16_set(&op_params->sync, SYNC_START); + ret = pmd_lcore_ldpc_enc(&t_params[0]); + if (ret) { + rte_free(t_params); + return ret; + } + + rte_free(t_params); + return ret; +} + +struct test_op_params *op_params = NULL; + +struct rte_mbuf *m_head[DATA_NUM_TYPES]; + +// OAI CODE +int32_t LDPCinit() +{ + pthread_mutex_init(&encode_mutex, NULL); + pthread_mutex_init(&decode_mutex, NULL); + int ret; + int dev_id = 0; + struct rte_bbdev_info info; + struct active_device *ad = active_devs; + char *dpdk_dev = "41:00.0"; //PCI address of the card + char *argv_re[] = {"bbdev", "-a", dpdk_dev, "-l", "14-15", "--file-prefix=b6", "--"}; + // EAL initialization, if already initialized (init in xran lib) try to probe DPDK device + ret = rte_eal_init(5, argv_re); + if (ret < 0) { + printf("EAL initialization failed, probing DPDK device %s\n", dpdk_dev); + if (rte_dev_probe(dpdk_dev) != 0) { + LOG_E(PHY, "T2 card %s not found\n", dpdk_dev); + return (-1); + } + } + // Use only device 0 - first detected device + rte_bbdev_info_get(0, &info); + // Set number of queues based on number of initialized cores (-l option) and driver + // capabilities + TEST_ASSERT_SUCCESS(add_dev(dev_id, &info), "Failed to setup bbdev"); + TEST_ASSERT_SUCCESS(rte_bbdev_stats_reset(dev_id), "Failed to reset stats of bbdev %u", dev_id); + TEST_ASSERT_SUCCESS(rte_bbdev_start(dev_id), "Failed to start bbdev %u", dev_id); + + //the previous calls have populated this global variable (beurk) + // One more global to remove, not thread safe global op_params + op_params = rte_zmalloc(NULL, sizeof(struct test_op_params), RTE_CACHE_LINE_SIZE); + TEST_ASSERT_NOT_NULL(op_params, "Failed to alloc %zuB for op_params", + RTE_ALIGN(sizeof(struct test_op_params), RTE_CACHE_LINE_SIZE)); + + int socket_id = GET_SOCKET(info.socket_id); + int out_max_sz = 8448; // max code block size (for BG1), 22 * 384 + int in_max_sz = 25344; // max number of encoded bits (for BG1), 66 * 384 + int num_ops = 1; + int f_ret = create_mempools(ad, socket_id, num_ops, out_max_sz, in_max_sz); + if (f_ret != TEST_SUCCESS) { + printf("Couldn't create mempools"); + return -1; + } + // get_num_lcores() hardcoded to 1: we use one core for decode, and another for encode + // this code from bbdev test example is not considering encode and decode test + // get_num_ops() replaced by 1: LDPC decode and ldpc encode (7th param) + f_ret = init_test_op_params(op_params, RTE_BBDEV_OP_LDPC_DEC, ad->bbdev_dec_op_pool, 1, 1, 1); + f_ret |= init_test_op_params(op_params, RTE_BBDEV_OP_LDPC_ENC, ad->bbdev_enc_op_pool, 1, 1, 1); + if (f_ret != TEST_SUCCESS) { + printf("Couldn't init test op params"); + return -1; + } + + // fill_queue_buffers -> allocate_buffers_on_socket + for (int i = 0; i < ad->nb_queues; ++i) { + const uint16_t n = op_params->num_to_process; + struct rte_mempool *in_mp = ad->in_mbuf_pool; + struct rte_mempool *hard_out_mp = ad->hard_out_mbuf_pool; + struct rte_mempool *soft_out_mp = ad->soft_out_mbuf_pool; + struct rte_mempool *harq_in_mp = ad->harq_in_mbuf_pool; + struct rte_mempool *harq_out_mp = ad->harq_out_mbuf_pool; + struct rte_mempool *mbuf_pools[DATA_NUM_TYPES] = {in_mp, soft_out_mp, hard_out_mp, harq_in_mp, harq_out_mp}; + uint8_t queue_id = ad->queue_ids[i]; + struct rte_bbdev_op_data **queue_ops[DATA_NUM_TYPES] = {&op_params->q_bufs[socket_id][queue_id].inputs, + &op_params->q_bufs[socket_id][queue_id].soft_outputs, + &op_params->q_bufs[socket_id][queue_id].hard_outputs, + &op_params->q_bufs[socket_id][queue_id].harq_inputs, + &op_params->q_bufs[socket_id][queue_id].harq_outputs}; + + for (enum op_data_type type = DATA_INPUT; type < 3; type += 2) { + int ret = allocate_buffers_on_socket(queue_ops[type], n * sizeof(struct rte_bbdev_op_data), socket_id); + TEST_ASSERT_SUCCESS(ret, "Couldn't allocate memory for rte_bbdev_op_data structs"); + m_head[type] = rte_pktmbuf_alloc(mbuf_pools[type]); + TEST_ASSERT_NOT_NULL(m_head[type], + "Not enough mbufs in %d data type mbuf pool (needed %d, available %u)", + type, + 1, + mbuf_pools[type]->size); + } + } + + return 0; +} + +int32_t LDPCshutdown() +{ + struct active_device *ad = active_devs; + int dev_id = 0; + struct rte_bbdev_stats stats; + free_buffers(ad, op_params); + rte_free(op_params); + // Stop and close bbdev + rte_bbdev_stats_get(dev_id, &stats); + rte_bbdev_stop(dev_id); + rte_bbdev_close(dev_id); + memset(active_devs, 0, sizeof(active_devs)); + nb_active_devs = 0; + return 0; +} + +int32_t LDPCdecoder(struct nrLDPC_dec_params *p_decParams, + uint8_t harq_pid, + uint8_t ulsch_id, + uint8_t C, + int8_t *p_llr, + int8_t *p_out, + t_nrLDPC_time_stats *p_profiler, + decode_abort_t *ab) +{ + pthread_mutex_lock(&decode_mutex); + + // hardcoded we use first device + struct active_device *ad = active_devs; + t_nrLDPCoffload_params offloadParams = {.E = p_decParams->E, + .n_cb = (p_decParams->BG == 1) ? (66 * p_decParams->Z) : (50 * p_decParams->Z), + .BG = p_decParams->BG, + .Z = p_decParams->Z, + .rv = p_decParams->rv, + .F = p_decParams->F, + .Qm = p_decParams->Qm}; + LOG_D(PHY,"E %d\n",p_decParams->E); + struct rte_bbdev_info info; + rte_bbdev_info_get(ad->dev_id, &info); + int socket_id = GET_SOCKET(info.socket_id); + // fill_queue_buffers -> init_op_data_objs + struct rte_mempool *in_mp = ad->in_mbuf_pool; + struct rte_mempool *hard_out_mp = ad->hard_out_mbuf_pool; + struct rte_mempool *soft_out_mp = ad->soft_out_mbuf_pool; + struct rte_mempool *harq_in_mp = ad->harq_in_mbuf_pool; + struct rte_mempool *harq_out_mp = ad->harq_out_mbuf_pool; + struct rte_mempool *mbuf_pools[DATA_NUM_TYPES] = {in_mp, soft_out_mp, hard_out_mp, harq_in_mp, harq_out_mp}; + uint8_t queue_id = ad->dec_queue; + struct rte_bbdev_op_data **queue_ops[DATA_NUM_TYPES] = {&op_params->q_bufs[socket_id][queue_id].inputs, + &op_params->q_bufs[socket_id][queue_id].soft_outputs, + &op_params->q_bufs[socket_id][queue_id].hard_outputs, + &op_params->q_bufs[socket_id][queue_id].harq_inputs, + &op_params->q_bufs[socket_id][queue_id].harq_outputs}; + // this should be modified + // enum rte_bbdev_op_type op_type = RTE_BBDEV_OP_LDPC_DEC; + for (enum op_data_type type = DATA_INPUT; type < 3; type += 2) { + int ret = init_op_data_objs(*queue_ops[type], + (uint8_t *)p_llr, + p_decParams->E, + m_head[type], + mbuf_pools[type], + 1, + type, + info.drv.min_alignment); + TEST_ASSERT_SUCCESS(ret, "Couldn't init rte_bbdev_op_data structs"); + } + int ret = start_pmd_dec(ad, op_params, &offloadParams, C, harq_pid, ulsch_id, (uint8_t *)p_out); + if (ret < 0) { + printf("Couldn't start pmd dec\n"); + pthread_mutex_unlock(&decode_mutex); + return (20); // Fix me: we should propoagate max_iterations properly in the call (impp struct) + } + pthread_mutex_unlock(&decode_mutex); + return ret; +} + +int32_t LDPCencoder(unsigned char **input, unsigned char **output, encoder_implemparams_t *impp) +{ + pthread_mutex_lock(&encode_mutex); + // hardcoded to use the first found board + struct active_device *ad = active_devs; + int Zc = impp->Zc; + int BG = impp->BG; + t_nrLDPCoffload_params offloadParams = {.E = impp->E, + .n_cb = (BG == 1) ? (66 * Zc) : (50 * Zc), + .BG = BG, + .Z = Zc, + .rv = 0, //impp->rv, + .F = 0, //impp->F, + .Qm = impp->Qm, + .Kr = impp->Kr}; + struct rte_bbdev_info info; + rte_bbdev_info_get(ad->dev_id, &info); + int socket_id = GET_SOCKET(info.socket_id); + // fill_queue_buffers -> init_op_data_objs + struct rte_mempool *in_mp = ad->in_mbuf_pool; + struct rte_mempool *hard_out_mp = ad->hard_out_mbuf_pool; + struct rte_mempool *soft_out_mp = ad->soft_out_mbuf_pool; + struct rte_mempool *harq_in_mp = ad->harq_in_mbuf_pool; + struct rte_mempool *harq_out_mp = ad->harq_out_mbuf_pool; + struct rte_mempool *mbuf_pools[DATA_NUM_TYPES] = {in_mp, soft_out_mp, hard_out_mp, harq_in_mp, harq_out_mp}; + uint8_t queue_id = ad->enc_queue; + struct rte_bbdev_op_data **queue_ops[DATA_NUM_TYPES] = {&op_params->q_bufs[socket_id][queue_id].inputs, + &op_params->q_bufs[socket_id][queue_id].soft_outputs, + &op_params->q_bufs[socket_id][queue_id].hard_outputs, + &op_params->q_bufs[socket_id][queue_id].harq_inputs, + &op_params->q_bufs[socket_id][queue_id].harq_outputs}; + for (enum op_data_type type = DATA_INPUT; type < 3; type += 2) { + int ret = init_op_data_objs(*queue_ops[type], + *input, + (offloadParams.Kr + 7) / 8, + m_head[type], + mbuf_pools[type], + 1, + type, + info.drv.min_alignment); + TEST_ASSERT_SUCCESS(ret, "Couldn't init rte_bbdev_op_data structs"); + } + int ret=start_pmd_enc(ad, op_params, &offloadParams, *output); + pthread_mutex_unlock(&encode_mutex); + return ret; +} diff --git a/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_offload.h b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_offload.h new file mode 100644 index 0000000000..80a9395d0b --- /dev/null +++ b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_offload.h @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2017 Intel Corporation + */ + +#ifndef _MAIN_H_ +#define _MAIN_H_ + +#include +#include + +#include +#include +#include + +#define TEST_SUCCESS 0 +#define TEST_FAILED -1 +#define TEST_SKIPPED 1 + +#define MAX_BURST 512U +#define DEFAULT_BURST 32U +#define DEFAULT_OPS 64U +#define DEFAULT_ITER 6U + +enum op_data_type { + DATA_INPUT = 0, + DATA_SOFT_OUTPUT, + DATA_HARD_OUTPUT, + DATA_HARQ_INPUT, + DATA_HARQ_OUTPUT, + DATA_NUM_TYPES, +}; + +#define TEST_ASSERT(cond, msg, ...) do { \ + if (!(cond)) { \ + printf("TestCase %s() line %d failed: " \ + msg "\n", __func__, __LINE__, ##__VA_ARGS__); \ + return TEST_FAILED; \ + } \ +} while (0) + +/* Compare two buffers (length in bytes) */ +#define TEST_ASSERT_BUFFERS_ARE_EQUAL(a, b, len, msg, ...) do { \ + if (memcmp((a), (b), len)) { \ + printf("TestCase %s() line %d failed: " \ + msg "\n", __func__, __LINE__, ##__VA_ARGS__); \ + rte_memdump(stdout, "Buffer A", (a), len); \ + rte_memdump(stdout, "Buffer B", (b), len); \ + return TEST_FAILED; \ + } \ +} while (0) + +#define TEST_ASSERT_SUCCESS(val, msg, ...) do { \ + typeof(val) _val = (val); \ + if (!(_val == 0)) { \ + printf("TestCase %s() line %d failed (err %d): " \ + msg "\n", __func__, __LINE__, _val, \ + ##__VA_ARGS__); \ + return TEST_FAILED; \ + } \ +} while (0) + +#define TEST_ASSERT_FAIL(val, msg, ...) \ + TEST_ASSERT_SUCCESS(!(val), msg, ##__VA_ARGS__) + +#define TEST_ASSERT_NOT_NULL(val, msg, ...) do { \ + if ((val) == NULL) { \ + printf("TestCase %s() line %d failed (null): " \ + msg "\n", __func__, __LINE__, ##__VA_ARGS__); \ + return TEST_FAILED; \ + } \ +} while (0) + +struct unit_test_case { + int (*setup)(void); + void (*teardown)(void); + int (*testcase)(void); + const char *name; +}; + +#define TEST_CASE(testcase) {NULL, NULL, testcase, #testcase} + +#define TEST_CASE_ST(setup, teardown, testcase) \ + {setup, teardown, testcase, #testcase} + +#define TEST_CASES_END() {NULL, NULL, NULL, NULL} + +struct unit_test_suite { + const char *suite_name; + int (*setup)(void); + void (*teardown)(void); + struct unit_test_case unit_test_cases[]; +}; + +int unit_test_suite_runner(struct unit_test_suite *suite); + +typedef int (test_callback)(void); +TAILQ_HEAD(test_commands_list, test_command); +struct test_command { + TAILQ_ENTRY(test_command) next; + const char *command; + test_callback *callback; +}; + +void add_test_command(struct test_command *t); + +/* Register a test function */ +#define REGISTER_TEST_COMMAND(name, testsuite) \ + static int test_func_##name(void) \ + { \ + return unit_test_suite_runner(&testsuite); \ + } \ + static struct test_command test_struct_##name = { \ + .command = RTE_STR(name), \ + .callback = test_func_##name, \ + }; \ + RTE_INIT(test_register_##name) \ + { \ + add_test_command(&test_struct_##name); \ + } + +const char *get_vector_filename(void); + +unsigned int get_num_ops(void); + +unsigned int get_burst_sz(void); + +unsigned int get_num_lcores(void); + +double get_snr(void); + +unsigned int get_iter_max(void); + +bool get_init_device(void); + +#endif diff --git a/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_types.h b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_types.h index 3679020149..3326ab279e 100644 --- a/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_types.h +++ b/openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_types.h @@ -96,6 +96,17 @@ typedef struct nrLDPC_dec_params { int (*check_crc)(uint8_t* decoded_bytes, uint32_t n, uint8_t crc_type); } t_nrLDPC_dec_params; +typedef struct nrLDPCoffload_params { + uint8_t BG; /**< Base graph */ + uint16_t Z; + uint16_t Kr; + uint8_t rv; + uint32_t E; + uint16_t n_cb; + uint16_t F; /**< Filler bits */ + uint8_t Qm; /**< Modulation */ +} t_nrLDPCoffload_params; + /** Structure containing LDPC decoder processing time statistics. */ diff --git a/openair1/PHY/CODING/nrLDPC_extern.h b/openair1/PHY/CODING/nrLDPC_extern.h index 82f587aa37..dbfdae21b2 100644 --- a/openair1/PHY/CODING/nrLDPC_extern.h +++ b/openair1/PHY/CODING/nrLDPC_extern.h @@ -31,7 +31,7 @@ typedef struct ldpc_interface_s { } ldpc_interface_t; // Global var to limit the rework of the dirty legacy code -extern ldpc_interface_t ldpc_interface; +extern ldpc_interface_t ldpc_interface, ldpc_interface_offload; /* functions to load the LDPC shared lib, implemented in openair1/PHY/CODING/nrLDPC_load.c */ int load_LDPClib(char *version, ldpc_interface_t *); diff --git a/openair1/PHY/INIT/nr_init.c b/openair1/PHY/INIT/nr_init.c index f3fda0969f..c10a0071a7 100644 --- a/openair1/PHY/INIT/nr_init.c +++ b/openair1/PHY/INIT/nr_init.c @@ -502,7 +502,7 @@ int init_codebook_gNB(PHY_VARS_gNB *gNB) { } // A global var to reduce the changes size -ldpc_interface_t ldpc_interface = {0}; +ldpc_interface_t ldpc_interface = {0}, ldpc_interface_offload = {0}; int phy_init_nr_gNB(PHY_VARS_gNB *gNB) { @@ -533,6 +533,8 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB) load_LDPClib(NULL, &ldpc_interface); + if (gNB->ldpc_offload_flag) + load_LDPClib("_t2", &ldpc_interface_offload); gNB->max_nb_pdsch = MAX_MOBILES_PER_GNB; init_codebook_gNB(gNB); diff --git a/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c b/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c index 0779812a5f..0b240ac488 100644 --- a/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c +++ b/openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c @@ -380,25 +380,60 @@ int nr_dlsch_encoding(PHY_VARS_gNB *gNB, impp.tparity = tparity; impp.toutput = toutput; impp.harq = harq; - notifiedFIFO_t nf; - initNotifiedFIFO(&nf); - int nbJobs = 0; - for (int j = 0; j < (impp.n_segments / 8 + ((impp.n_segments & 7) == 0 ? 0 : 1)); j++) { - notifiedFIFO_elt_t *req = newNotifiedFIFO_elt(sizeof(impp), j, &nf, ldpc8blocks); - encoder_implemparams_t *perJobImpp = (encoder_implemparams_t *)NotifiedFifoData(req); - *perJobImpp = impp; - perJobImpp->macro_num = j; - pushTpool(&gNB->threadPool, req); - nbJobs++; + if (gNB->ldpc_offload_flag && *rel15->mcsIndex > 2) { + impp.Qm = rel15->qamModOrder[0]; + impp.rv = rel15->rvIndex[0]; + int nb_re_dmrs = + (rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1) ? (6 * rel15->numDmrsCdmGrpsNoData) : (4 * rel15->numDmrsCdmGrpsNoData); + impp.G = nr_get_G(rel15->rbSize, + rel15->NrOfSymbols, + nb_re_dmrs, + get_num_dmrs(rel15->dlDmrsSymbPos), + harq->unav_res, + rel15->qamModOrder[0], + rel15->nrOfLayers); + uint8_t tmp[68 * 384] __attribute__((aligned(32))); + uint8_t *d = tmp; + int r_offset = 0; + for (int r = 0; r < impp.n_segments; r++) { + impp.E = nr_get_E(impp.G, impp.n_segments, impp.Qm, rel15->nrOfLayers, r); + impp.Kr = impp.K; + ldpc_interface_offload.LDPCencoder(&harq->c[r], &d, &impp); + uint8_t e[impp.E]; + bzero(e, impp.E); + nr_rate_matching_ldpc(rel15->maintenance_parms_v3.tbSizeLbrmBytes, + impp.BG, + impp.Zc, + tmp, + e, + impp.n_segments, + impp.F, + impp.K - impp.F - 2 * impp.Zc, + impp.rv, + impp.E); + nr_interleaving_ldpc(impp.E, impp.Qm, e, impp.output + r_offset); + r_offset += impp.E; + } + } else { + notifiedFIFO_t nf; + initNotifiedFIFO(&nf); + int nbJobs = 0; + for (int j = 0; j < (impp.n_segments / 8 + ((impp.n_segments & 7) == 0 ? 0 : 1)); j++) { + notifiedFIFO_elt_t *req = newNotifiedFIFO_elt(sizeof(impp), j, &nf, ldpc8blocks); + encoder_implemparams_t *perJobImpp = (encoder_implemparams_t *)NotifiedFifoData(req); + *perJobImpp = impp; + perJobImpp->macro_num = j; + pushTpool(&gNB->threadPool, req); + nbJobs++; + } + while (nbJobs) { + notifiedFIFO_elt_t *req = pullTpool(&nf, &gNB->threadPool); + if (req == NULL) + break; // Tpool has been stopped + delNotifiedFIFO_elt(req); + nbJobs--; + } } - while (nbJobs) { - notifiedFIFO_elt_t *req = pullTpool(&nf, &gNB->threadPool); - if (req == NULL) - break; // Tpool has been stopped - delNotifiedFIFO_elt(req); - nbJobs--; - } - VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_gNB_DLSCH_ENCODING, VCD_FUNCTION_OUT); return 0; } diff --git a/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c b/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c index b43c67e6b9..13e2a5514f 100644 --- a/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c +++ b/openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c @@ -222,6 +222,101 @@ static void nr_processULSegment(void *arg) memcpy(ulsch_harq->c[r],llrProcBuf, Kr>>3); } +int decode_offload(PHY_VARS_gNB *phy_vars_gNB, + uint8_t ULSCH_id, + short *ulsch_llr, + nfapi_nr_pusch_pdu_t *pusch_pdu, + t_nrLDPC_dec_params *decParams, + uint8_t harq_pid, + uint32_t G) +{ + NR_gNB_ULSCH_t *ulsch = &phy_vars_gNB->ulsch[ULSCH_id]; + NR_UL_gNB_HARQ_t *harq_process = ulsch->harq_process; + int16_t z_ol[68 * 384 + 16] __attribute__((aligned(16))); + int8_t l_ol[68 * 384 + 16] __attribute__((aligned(16))); + uint8_t Qm = pusch_pdu->qam_mod_order; + uint8_t n_layers = pusch_pdu->nrOfLayers; + const int Kr = harq_process->K; + const int Kr_bytes = Kr >> 3; + uint32_t A = (harq_process->TBS) << 3; + const int kc = decParams->BG == 2 ? 52 : 68; + ulsch->max_ldpc_iterations = 20; + int decodeIterations = 2; + int r_offset = 0, offset = 0; + for (int r = 0; r < harq_process->C; r++) { + int E = nr_get_E(G, harq_process->C, Qm, n_layers, r); + memset(harq_process->c[r], 0, Kr_bytes); + decParams->R = nr_get_R_ldpc_decoder(pusch_pdu->pusch_data.rv_index, + E, + decParams->BG, + decParams->Z, + &harq_process->llrLen, + harq_process->round); + + memcpy(z_ol, ulsch_llr + r_offset, E * sizeof(short)); + simde__m128i *pv_ol128 = (simde__m128i *)&z_ol; + simde__m128i *pl_ol128 = (simde__m128i *)&l_ol; + for (int i = 0, j = 0; j < ((kc * harq_process->Z) >> 4) + 1; i += 2, j++) { + pl_ol128[j] = simde_mm_packs_epi16(pv_ol128[i], pv_ol128[i + 1]); + } + decParams->E = E; + decParams->rv = pusch_pdu->pusch_data.rv_index; + decParams->F = harq_process->F; + decParams->Qm = Qm; + decodeIterations = + ldpc_interface_offload + .LDPCdecoder(decParams, harq_pid, ULSCH_id, r, (int8_t *)&pl_ol128[0], (int8_t *)harq_process->c[r], NULL, NULL); + if (decodeIterations < 0) { + LOG_E(PHY, "ulsch_decoding.c: Problem in LDPC decoder offload\n"); + return -1; + } + bool decodeSuccess = check_crc((uint8_t *)harq_process->c[r], lenWithCrc(harq_process->C, A), crcType(harq_process->C, A)); + if (decodeSuccess) { + memcpy(harq_process->b + offset, harq_process->c[r], Kr_bytes - (harq_process->F >> 3) - ((harq_process->C > 1) ? 3 : 0)); + offset += (Kr_bytes - (harq_process->F >> 3) - ((harq_process->C > 1) ? 3 : 0)); + harq_process->processedSegments++; + } else { + LOG_D(PHY, "uplink segment error %d/%d\n", r, harq_process->C); + LOG_D(PHY, "ULSCH %d in error\n", ULSCH_id); + } + r_offset += E; + } + bool crc_valid = false; + if (harq_process->processedSegments == harq_process->C) { + // When the number of code blocks is 1 (C = 1) and ulsch_harq->processedSegments = 1, we can assume a good TB because of the + // CRC check made by the LDPC for early termination, so, no need to perform CRC check twice for a single code block + crc_valid = true; + if (harq_process->C > 1) { + crc_valid = check_crc(harq_process->b, lenWithCrc(1, A), crcType(1, A)); + } + } + if (crc_valid) { + LOG_D(PHY, "ULSCH: Setting ACK for slot %d TBS %d\n", ulsch->slot, harq_process->TBS); + ulsch->active = false; + harq_process->round = 0; + LOG_D(PHY, "ULSCH received ok \n"); + nr_fill_indication(phy_vars_gNB, ulsch->frame, ulsch->slot, ULSCH_id, harq_pid, 0, 0); + } else { + LOG_D(PHY, + "[gNB %d] ULSCH: Setting NAK for SFN/SF %d/%d (pid %d, status %d, round %d, TBS %d)\n", + phy_vars_gNB->Mod_id, + ulsch->frame, + ulsch->slot, + harq_pid, + ulsch->active, + harq_process->round, + harq_process->TBS); + ulsch->handled = 1; + decodeIterations = ulsch->max_ldpc_iterations + 1; + LOG_D(PHY, "ULSCH %d in error\n", ULSCH_id); + nr_fill_indication(phy_vars_gNB, ulsch->frame, ulsch->slot, ULSCH_id, harq_pid, 1, 0); + } + + ulsch->last_iteration_cnt = decodeIterations; + VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_ULSCH_DECODING,0); + return 0; +} + int nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB, uint8_t ULSCH_id, short *ulsch_llr, @@ -332,6 +427,9 @@ int nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB, harq_process->harq_to_be_cleared = false; } + if (phy_vars_gNB->ldpc_offload_flag) + return decode_offload(phy_vars_gNB, ULSCH_id, ulsch_llr, pusch_pdu, &decParams, harq_pid, G); + uint32_t offset = 0, r_offset = 0; set_abort(&harq_process->abort_decode, false); for (int r = 0; r < harq_process->C; r++) { diff --git a/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c b/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c index ca9d020c8e..961da87922 100644 --- a/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c +++ b/openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_coding.c @@ -202,12 +202,20 @@ int nr_ulsch_encoding(PHY_VARS_NR_UE *ue, VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_LDPC_ENCODER_OPTIM, VCD_FUNCTION_IN); start_meas(&ue->ulsch_ldpc_encoding_stats); - for (int j = 0; j < (harq_process->C / 8 + 1); j++) { - impp.macro_num = j; - impp.E = nr_get_E(G, harq_process->C, mod_order, ulsch->pusch_pdu.nrOfLayers, j); - impp.Kr = Kr; - ldpc_interface.LDPCencoder(harq_process->c, harq_process->d, &impp); - } + if (ldpc_interface_offload.LDPCencoder) + for (int j = 0; j < harq_process->C; j++) { + impp.macro_num = j; + impp.E = nr_get_E(G, harq_process->C, mod_order, ulsch->pusch_pdu.nrOfLayers, j); + impp.Kr = Kr; + ldpc_interface_offload.LDPCencoder(&harq_process->c[j], &harq_process->d[j], &impp); + } + else + for (int j = 0; j < (harq_process->C / 8 + 1); j++) { + impp.macro_num = j; + impp.E = nr_get_E(G, harq_process->C, mod_order, ulsch->pusch_pdu.nrOfLayers, j); + impp.Kr = Kr; + ldpc_interface.LDPCencoder(harq_process->c, harq_process->d, &impp); + } VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_LDPC_ENCODER_OPTIM, VCD_FUNCTION_OUT); //stop_meas(te_stats); diff --git a/openair1/PHY/defs_gNB.h b/openair1/PHY/defs_gNB.h index b4c7e25e43..5c3a5490af 100644 --- a/openair1/PHY/defs_gNB.h +++ b/openair1/PHY/defs_gNB.h @@ -642,6 +642,8 @@ typedef struct PHY_VARS_gNB_s { /// OFDM symbol offset divisor for UL uint32_t ofdm_offset_divisor; + int ldpc_offload_flag; + int reorder_thread_disable; int max_ldpc_iterations; diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c index 6bd282c054..20aabed512 100644 --- a/openair1/SIMULATION/NR_PHY/dlsim.c +++ b/openair1/SIMULATION/NR_PHY/dlsim.c @@ -291,6 +291,7 @@ int main(int argc, char **argv) uint8_t n_tx=1,n_rx=1; uint8_t round; uint8_t num_rounds = 4; + int ldpc_offload_flag = 0; char gNBthreads[128]="n"; channel_desc_t *gNB2UE; @@ -398,6 +399,10 @@ int main(int argc, char **argv) n_trials = atoi(optarg); break; + case 'c': + ldpc_offload_flag = 1; + break; + case 's': snr0 = atof(optarg); printf("Setting SNR0 to %f\n",snr0); @@ -562,6 +567,7 @@ int main(int argc, char **argv) //printf("-j Relative strength of second intefering gNB (in dB) - cell_id mod 3 = 2\n"); printf("-R N_RB_DL\n"); printf("-O oversampling factor (1,2,4,8,16)\n"); + printf("-c ldpc offload flag\n"); printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); //printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); printf("-f raw file containing RRC configuration (generated by gNB)\n"); @@ -620,6 +626,7 @@ int main(int argc, char **argv) gNB = RC.gNB[0]; gNB->ofdm_offset_divisor = UINT_MAX; + gNB->ldpc_offload_flag = ldpc_offload_flag; frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH) frame_parms->nb_antennas_tx = n_tx; frame_parms->nb_antennas_rx = n_rx; @@ -1325,6 +1332,9 @@ int main(int argc, char **argv) free(UE->phy_sim_pdsch_dl_ch_estimates_ext); free(UE->phy_sim_dlsch_b); + if (gNB->ldpc_offload_flag) + free_LDPClib(&ldpc_interface_offload); + if (output_fd) fclose(output_fd); diff --git a/openair1/SIMULATION/NR_PHY/ulsim.c b/openair1/SIMULATION/NR_PHY/ulsim.c index 8209088da8..57e88bd666 100644 --- a/openair1/SIMULATION/NR_PHY/ulsim.c +++ b/openair1/SIMULATION/NR_PHY/ulsim.c @@ -186,6 +186,7 @@ int main(int argc, char *argv[]) double effRate; double effTP; float eff_tp_check = 100; + int ldpc_offload_flag = 0; uint8_t max_rounds = 4; int chest_type[2] = {0}; int enable_ptrs = 0; @@ -329,6 +330,10 @@ int main(int argc, char *argv[]) n_trials = atoi(optarg); break; + case 'o': + ldpc_offload_flag = 1; + break; + case 'p': extended_prefix_flag = 1; break; @@ -488,6 +493,7 @@ int main(int argc, char *argv[]) printf("-k 3/4 sampling\n"); printf("-m MCS value\n"); printf("-n Number of trials to simulate\n"); + printf("-o ldpc offload flag\n"); printf("-p Use extended prefix mode\n"); printf("-q MCS table\n"); printf("-r Number of allocated resource blocks for PUSCH\n"); @@ -623,6 +629,7 @@ int main(int argc, char *argv[]) cfg->carrier_config.num_rx_ant.value = n_rx; // nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,0,0x01); + gNB->ldpc_offload_flag = ldpc_offload_flag; gNB->chest_freq = chest_type[0]; gNB->chest_time = chest_type[1]; @@ -1604,6 +1611,8 @@ int main(int argc, char *argv[]) num_dmrs_cdm_grps_no_data); free_MIB_NR(mib); + if (gNB->ldpc_offload_flag) + free_LDPClib(&ldpc_interface_offload); if (output_fd) fclose(output_fd);