229 lines
7.3 KiB
C
229 lines
7.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <memory.h>
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#include <unistd.h>
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#include "ibcomm.h"
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#include "debug.h"
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#include "mtype.h"
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#include "mcons.h"
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#include "mm_ib_test.h"
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//#define DEBUG_RDMA_WR_WITH_IMM
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#ifdef DEBUG_RDMA_WR_WITH_IMM
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#define dprintf printf
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#else
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#define dprintf(...)
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#endif
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#define TEST_NRECVBUF 10
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#define TEST_NSENDBUF 10
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#define TEST_SZBUF 10
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#define TEST_RDMA_FLG_SIZE (sizeof(unsigned short))
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#define NTRIAL 120
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#define PPOLLS 2 /* sweet spot is around 10 */
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#define NSKIPS (PPOLLS*1)
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#define PPOLLR 60 /* sweet spot is around 10 */
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#define NSKIPR (PPOLLR*1)
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enum rdma_buf_flg{
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RDMA_BUF_RESET_FLG = 0,
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RDMA_BUF_WRITE_FLG = 1,
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};
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static unsigned long rdtsc() {
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unsigned long x;
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__asm__ __volatile__("xorl %%eax, %%eax; cpuid;" : : : "%rax", "%rbx", "%rcx", "%rdx"); /* rdtsc cannot be executed earlier than this */
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__asm__ __volatile__("rdtsc; shl $32, %%rdx; or %%rdx, %%rax" : "=a"(x) : : "memory"); /* rdtsc cannot be executed earlier than here */
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__asm__ __volatile__("xorl %%eax, %%eax; cpuid;" : : : "%rax", "%rbx", "%rcx", "%rdx"); /* following instructions cannot be executed earlier than this */
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return x;
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}
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static void set_written_flg(config_t config, void *buf, int tag){
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*(unsigned short *)(buf + config.buf_size - TEST_RDMA_FLG_SIZE) = tag+RDMA_BUF_WRITE_FLG;
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}
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/**
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* Alloc all MR buffers from MIC card memory
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*
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*/
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int main(int argc, char **argv) {
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config_t config;
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int i, j, k, tag = 0, rc = 0;
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char sync_res;
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unsigned long tscs, tsce;
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resource_t res;
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pdinfo_t pdinfo;
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qpinfo_t qpinfo;
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mrinfo_t *loc_mr_list = NULL;
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int entry, wait_tag;
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mrinfo_t *mrinfo_recv_list = NULL;
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int mr_idx = 0;
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FILE* fp;
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fp = popen("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", "r");
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if(!fp) { printf("popen failed\n"); goto fn_fail; }
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char freq_str[256];
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int nread = fread(freq_str, sizeof(char), 256, fp);
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if(!nread) { printf("popen failed"); goto fn_fail; }
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freq_str[nread] = 0;
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//printf("%s", freq_str);
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long int freq = strtol(freq_str, NULL, 10) * 1000;
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printf("freq=%ld\n", freq);
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pclose(fp);
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//exit(1);
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if (read_config(&config, argc, argv)) {
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goto main_exit;
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}
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config.use_rdma = 1;
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if(config.buf_size == 0)
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config.buf_size = TEST_SZBUF;
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if (resource_create(config, &res) || pd_create(&res, &pdinfo)
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|| qp_create(&res, &pdinfo, &qpinfo)) {
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goto main_exit;
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}
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debug_printf("create all successfully..\n");
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/* create MR buffers */
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int buf_total_size = config.buf_size;
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// rdma r/w buffer
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// add rdma flag size
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void *rdma_buf = calloc(buf_total_size, sizeof(char));
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memset(rdma_buf, 0, buf_total_size);
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if (mr_create(&res, &pdinfo, buf_total_size, rdma_buf, &res.rdma_mr))
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goto main_exit;
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// local data buffers
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loc_mr_list = malloc(sizeof(mrinfo_t) * TEST_NSENDBUF);
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for (i = 0; i < TEST_NSENDBUF; i++) {
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void *loc_buf = calloc(buf_total_size, sizeof(char));
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if (config.server_flg) {
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memset(loc_buf, 's'+ i, config.buf_size);
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} else {
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memset(loc_buf, 'c'+ i, config.buf_size);
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}
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set_written_flg(config, loc_buf, 0); /* magic is 16'h0001 */
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if (mr_create(&res, &pdinfo, buf_total_size, loc_buf, &loc_mr_list[i]))
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goto main_exit;
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}
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dprintf("create RDMA buffer successfully..\n");
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/* Connect qp of each side and init them*/
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if (connect_qp(config, &res, &qpinfo)) {
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goto main_exit;
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}
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dprintf("connect done\n");
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debug_print_qp_conn_info(res, qpinfo, &config);
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/* Register fixed recv buffers */
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mrinfo_recv_list = malloc(sizeof(mrinfo_t) * TEST_NRECVBUF);
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for (i = 0; i < TEST_NRECVBUF; i++) {
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char *buf = calloc(config.buf_size, sizeof(char));
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if(buf == NULL) {
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fprintf(stderr, "cannot malloc %dth buf\n", i);
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goto main_exit;
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}
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if (mr_create(&res, &pdinfo, config.buf_size, buf, &mrinfo_recv_list[i])) {
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goto main_exit;
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}
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}
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/* Modify qp state to RTS */
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if (init_qp(config, &qpinfo)
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|| rtr_qp(config, &qpinfo) || rts_qp(config, &qpinfo)) {
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goto main_exit;
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}
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debug_printf("RTS done\n");
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#if 1
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/* barrier */
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for(i = 0; i < (config.server_flg ? config.nremote : 1); i++) {
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if(sock_sync_data(qpinfo.sock[i], 1, "R", &sync_res)){
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error_perror("sock_sync_data");
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}
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}
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#endif
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if (config.server_flg) { /* sender side */
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if(NTRIAL % PPOLLS != 0) { printf("set NTRIAL multiple of PPOLLS\n"); goto fn_fail; }
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if(NTRIAL <= NSKIPS) { printf("set NTRIAL > NSKIP\n"); goto fn_fail; }
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for (i = 0; i < NTRIAL; i++) {
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if(i == NSKIPS) { tscs = rdtsc(); }
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for(j = 0; j < config.nremote; j++) {
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entry = j % TEST_NSENDBUF;
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post_send_req(&qpinfo, &loc_mr_list[entry], IBV_WR_RDMA_WRITE_WITH_IMM, 0, &qpinfo.remote_conn_info[j], 100+0);
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int nfound = 0;
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if(i % PPOLLS == PPOLLS - 1) {
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k = 0;
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while(1) {
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int result;
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struct ibv_wc cqe[PPOLLS];
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result = ibv_poll_cq(qpinfo.scq, PPOLLS, &cqe[0]);
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if(result < 0) { printf("ibv_poll_cq"); goto fn_fail; }
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if(result > 0) {
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for(j = 0; j < result; j++) {
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if(cqe[j].status != IBV_WC_SUCCESS) { printf("cqe status\n"); goto fn_fail; }
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}
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//debug_print_mem((addr_t)loc_mr_list[entry].buf, config.buf_size);
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nfound += result;
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if(nfound == PPOLLS) { break; }
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}
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k++;
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}
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}
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}
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}
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tsce = rdtsc(); printf("send,%.0f\n", (tsce-tscs)/(double)(NTRIAL-NSKIPS));
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} else { // receiver side
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if(NSKIPR % PPOLLR !=0) { printf("set NSKIP multiple of PPOLL\n"); goto fn_fail; }
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for (i = 0; i < NTRIAL; i++) {
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if(i == NSKIPR) { tscs = rdtsc(); }
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wait_tag = i % TEST_NSENDBUF;
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post_recv_req(&qpinfo, &mrinfo_recv_list[i%TEST_NSENDBUF], i%TEST_NSENDBUF);
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int nfound = 0;
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if(i % PPOLLR == PPOLLR - 1) {
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k = 0;
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while(1) {
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int result;
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struct ibv_wc cqe[PPOLLR];
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result = ibv_poll_cq(qpinfo.rcq, 1, &cqe[0]);
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if(result < 0) { printf("poll_cq\n"); goto fn_fail; }
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if(result > 0) {
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for(j = 0; j < result; j++) {
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if(cqe[j].status != IBV_WC_SUCCESS) { printf("cqe.status"); goto fn_fail; }
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}
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//debug_print_mem((addr_t)res.rdma_mr.buf, config.buf_size);
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nfound += result;
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if(nfound == PPOLLR) { break; }
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}
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k++;
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}
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}
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}
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tsce = rdtsc(); printf("recv,%.0f\n", (tsce-tscs)/(double)(NTRIAL-NSKIPR));
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}
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fn_fail:
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main_exit:
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if (resource_destroy(&config, &res)) {
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dprintf("resource destroy failed\n");
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}
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if(loc_mr_list) { free(loc_mr_list); }
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return rc;
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}
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