181 lines
6.9 KiB
C
181 lines
6.9 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file coding_load.c
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* \brief: load library implementing coding/decoding algorithms
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* \author Francois TABURET
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* \date 2017
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* \version 0.1
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* \company NOKIA BellLabs France
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* \email: francois.taburet@nokia-bell-labs.com
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* \note
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* \warning
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*/
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#define _GNU_SOURCE
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#include <sys/types.h>
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#include "PHY/defs_common.h"
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#include "PHY/phy_extern.h"
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#include "PHY/CODING/coding_extern.h"
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#include "common/utils/load_module_shlib.h"
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#include "common/utils/telnetsrv/telnetsrv.h"
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static int coding_setmod_cmd(char *buff, int debug, telnet_printfunc_t prnt);
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static telnetshell_cmddef_t coding_cmdarray[] = {
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{"mode", "[sse,avx2,stdc,none]", coding_setmod_cmd, {NULL}, 0, NULL},
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{"", "", NULL, {NULL}, 0, NULL},
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};
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telnetshell_vardef_t coding_vardef[] = {{"maxiter", TELNET_VARTYPE_INT32, 0, &max_turbo_iterations}, {"", 0, 0, NULL}};
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/* PHY/defs.h contains MODE_DECODE_XXX macros, following table must match */
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static char *modedesc[] = {"none","sse","C","avx2"};
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static int curmode;
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/* function description array, to be used when loading the encoding/decoding shared lib */
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loader_shlibfunc_t shlib_fdesc[DECODE_NUM_FPTR];
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/* encoding decoding functions pointers, filled here and used when encoding/decoding */
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/*defined as extern in PHY?CODING/extern.h */
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decoder_if_t *decoder16;
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decoder_if_t *decoder8;
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encoder_if_t *encoder;
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extern int _may_i_use_cpu_feature(unsigned __int64);
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uint8_t nodecod(int16_t *y,
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int16_t *y2,
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uint8_t *decoded_bytes,
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uint8_t *decoded_bytes2,
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uint16_t n,
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uint8_t max_iterations,
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uint8_t crc_type,
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uint8_t F,
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time_stats_t *init_stats,
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time_stats_t *alpha_stats,
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time_stats_t *beta_stats,
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time_stats_t *gamma_stats,
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time_stats_t *ext_stats,
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time_stats_t *intl1_stats,
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time_stats_t *intl2_stats,
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decode_abort_t *ab)
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{
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return max_iterations+1;
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};
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void decoding_setmode (int mode) {
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switch (mode) {
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case MODE_DECODE_NONE:
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decoder8=nodecod;
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decoder16=nodecod;
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encoder=(encoder_if_t*)shlib_fdesc[ENCODE_C_FPTRIDX].fptr;
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break;
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case MODE_DECODE_C:
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decoder16=(decoder_if_t*)shlib_fdesc[DECODE_TD_C_FPTRIDX].fptr;
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decoder8=(decoder_if_t*)shlib_fdesc[DECODE_TD_C_FPTRIDX].fptr;
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encoder=(encoder_if_t*)shlib_fdesc[ENCODE_C_FPTRIDX].fptr;
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break;
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case MODE_DECODE_AVX2:
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decoder16=(decoder_if_t*)shlib_fdesc[DECODE_TD16_AVX2_FPTRIDX].fptr;
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decoder8=(decoder_if_t*)shlib_fdesc[DECODE_TD8_SSE_FPTRIDX].fptr;
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encoder=(encoder_if_t*)shlib_fdesc[ENCODE_SSE_FPTRIDX].fptr;
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break;
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default:
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mode=MODE_DECODE_SSE;
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case MODE_DECODE_SSE:
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decoder8=(decoder_if_t*)shlib_fdesc[DECODE_TD8_SSE_FPTRIDX].fptr;
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decoder16=(decoder_if_t*)shlib_fdesc[DECODE_TD16_SSE_FPTRIDX].fptr;
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encoder=(encoder_if_t*)shlib_fdesc[ENCODE_SSE_FPTRIDX].fptr;
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break;
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}
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curmode=mode;
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}
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int load_codinglib(void) {
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int ret;
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memset(shlib_fdesc,0,sizeof(shlib_fdesc));
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shlib_fdesc[DECODE_INITTD8_SSE_FPTRIDX].fname = "init_td8";
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shlib_fdesc[DECODE_INITTD16_SSE_FPTRIDX].fname= "init_td16";
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shlib_fdesc[DECODE_INITTD_AVX2_FPTRIDX].fname="init_td16avx2";
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shlib_fdesc[DECODE_TD8_SSE_FPTRIDX].fname= "phy_threegpplte_turbo_decoder8";
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shlib_fdesc[DECODE_TD16_SSE_FPTRIDX].fname= "phy_threegpplte_turbo_decoder16";
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shlib_fdesc[DECODE_TD_C_FPTRIDX].fname= "phy_threegpplte_turbo_decoder_scalar";
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shlib_fdesc[DECODE_TD16_AVX2_FPTRIDX].fname= "phy_threegpplte_turbo_decoder16avx2";
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shlib_fdesc[DECODE_FREETD8_FPTRIDX].fname = "free_td8";
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shlib_fdesc[DECODE_FREETD16_FPTRIDX].fname= "free_td16";
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shlib_fdesc[DECODE_FREETD_AVX2_FPTRIDX].fname= "free_td16avx2";
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shlib_fdesc[ENCODE_SSE_FPTRIDX].fname= "threegpplte_turbo_encoder_sse";
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shlib_fdesc[ENCODE_C_FPTRIDX].fname= "threegpplte_turbo_encoder";
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shlib_fdesc[ENCODE_INIT_SSE_FPTRIDX].fname= "init_encoder_sse";
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ret=load_module_shlib("coding",shlib_fdesc,DECODE_NUM_FPTR,NULL);
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if (ret < 0) exit_fun("Error loading coding library");
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/* execute encoder/decoder init functions */
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shlib_fdesc[DECODE_INITTD8_SSE_FPTRIDX].fptr();
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shlib_fdesc[DECODE_INITTD16_SSE_FPTRIDX].fptr();
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if(shlib_fdesc[DECODE_INITTD_AVX2_FPTRIDX].fptr != NULL) {
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shlib_fdesc[DECODE_INITTD_AVX2_FPTRIDX].fptr();
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}
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if(shlib_fdesc[ENCODE_INIT_SSE_FPTRIDX].fptr != NULL) {
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shlib_fdesc[ENCODE_INIT_SSE_FPTRIDX].fptr();
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}
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decoding_setmode(MODE_DECODE_SSE);
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/* look for telnet server, if it is loaded, add the coding commands to it */
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add_telnetcmd_func_t addcmd = (add_telnetcmd_func_t)get_shlibmodule_fptr("telnetsrv", TELNET_ADDCMD_FNAME);
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if (addcmd != NULL) {
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addcmd("coding",coding_vardef,coding_cmdarray);
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}
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return 0;
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}
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void free_codinglib(void) {
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shlib_fdesc[DECODE_FREETD8_FPTRIDX].fptr();
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shlib_fdesc[DECODE_FREETD16_FPTRIDX].fptr();
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shlib_fdesc[DECODE_FREETD_AVX2_FPTRIDX].fptr();
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}
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/* functions for telnet support, when telnet server is loaded */
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int coding_setmod_cmd(char *buff, int debug, telnet_printfunc_t prnt)
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{
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if (debug > 0)
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prnt( "coding_setmod_cmd received %s\n",buff);
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if (strcasestr(buff,"sse") != NULL) {
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decoding_setmode(MODE_DECODE_SSE);
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} else if (strcasestr(buff,"avx2") != NULL) {
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decoding_setmode(MODE_DECODE_AVX2);
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} else if (strcasestr(buff,"stdc") != NULL) {
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decoding_setmode(MODE_DECODE_C);
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} else if (strcasestr(buff,"none") != NULL) {
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decoding_setmode(MODE_DECODE_NONE);
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} else {
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prnt("%s: wrong setmod parameter...\n",buff);
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}
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prnt("Coding and decoding current mode: %s\n",modedesc[curmode]);
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return 0;
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}
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