static void
rdmasniff_cleanup(pcap_t *handle)
{
struct pcap_rdmasniff *priv = handle->priv;
ibv_dereg_mr(priv->mr);
ibv_destroy_flow(priv->flow);
ibv_destroy_qp(priv->qp);
ibv_destroy_cq(priv->cq);
ibv_dealloc_pd(priv->pd);
ibv_destroy_comp_channel(priv->channel);
ibv_close_device(priv->context);
free(priv->oneshot_buffer);
pcap_cleanup_live_common(handle);
}
/*
* Main function. implements raw_ethernet_send_lat
*/
int main(int argc, char *argv[])
{
struct ibv_device *ib_dev = NULL;
struct pingpong_context ctx;
struct raw_ethernet_info my_dest_info,rem_dest_info;
int ret_parser;
struct perftest_parameters user_param;
#ifdef HAVE_RAW_ETH_EXP
struct ibv_exp_flow *flow_create_result = NULL;
struct ibv_exp_flow_attr *flow_rules = NULL;
struct ibv_exp_flow *flow_promisc = NULL;
#else
struct ibv_flow *flow_create_result = NULL;
struct ibv_flow_attr *flow_rules = NULL;
#endif
struct report_options report;
//allocate memory space for user parameters
memset(&ctx, 0, sizeof(struct pingpong_context));
memset(&user_param, 0, sizeof(struct perftest_parameters));
memset(&my_dest_info, 0 , sizeof(struct raw_ethernet_info));
memset(&rem_dest_info, 0 , sizeof(struct raw_ethernet_info));
/* init default values to user's parameters that's relvant for this test:
* Raw Ethernet Send Latency Test
*/
user_param.verb = SEND;
user_param.tst = LAT;
strncpy(user_param.version, VERSION, sizeof(user_param.version));
user_param.connection_type = RawEth;
user_param.r_flag = &report;
if (check_flow_steering_support()) {
return 1;
}
/* Configure the parameters values according to user
arguments or default values. */
ret_parser = parser(&user_param, argv,argc);
//check for parsing errors
if (ret_parser) {
if (ret_parser != VERSION_EXIT && ret_parser != HELP_EXIT)
fprintf(stderr," Parser function exited with Error\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 1;
}
//this is a bidirectional test, so we need to let the init functions
//to think we are in duplex mode
//TODO: ask Ido if that's ok, or should I add another field in user_param
user_param.duplex = 1;
// Find the selected IB device (or default if the user didn't select one).
ib_dev = ctx_find_dev(user_param.ib_devname);
if (!ib_dev) {
fprintf(stderr," Unable to find the Infiniband/RoCE device\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 1;
}
// Getting the relevant context from the device
ctx.context = ibv_open_device(ib_dev);
if (!ctx.context) {
fprintf(stderr, " Couldn't get context for the device\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 1;
}
// See if MTU and link type are valid and supported.
if (check_link_and_mtu(ctx.context, &user_param)) {
fprintf(stderr, " Couldn't get context for the device\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return FAILURE;
}
// Allocating arrays needed for the test.
alloc_ctx(&ctx, &user_param);
// Print basic test information.
ctx_print_test_info(&user_param);
//set up the connection, return the required flow rules (notice that user_param->duplex == TRUE)
//so the function will setup like it's a bidirectional test
if (send_set_up_connection(&flow_rules, &ctx, &user_param, &my_dest_info, &rem_dest_info)) {
fprintf(stderr," Unable to set up socket connection\n");
return 1;
}
//print specifications of the test
print_spec(flow_rules,&user_param);
// Create (if necessary) the rdma_cm ids and channel.
if (user_param.work_rdma_cm == ON) {
//create resources
if (create_rdma_resources(&ctx, &user_param)) {
fprintf(stderr," Unable to create the rdma_resources\n");
return FAILURE;
}
if (user_param.machine == CLIENT) {
//Connects the client to a QP on the other machine with rdma_cm
if (rdma_client_connect(&ctx, &user_param)) {
fprintf(stderr,"Unable to perform rdma_client function\n");
return FAILURE;
}
} else if (rdma_server_connect(&ctx, &user_param)) {
//Assigning a server to listen on rdma_cm port and connect to it.
fprintf(stderr,"Unable to perform rdma_server function\n");
return FAILURE;
}
} else {
// initalize IB resources (data buffer, PD, MR, CQ and events channel)
if (ctx_init(&ctx, &user_param)) {
fprintf(stderr, " Couldn't create IB resources\n");
return FAILURE;
}
}
//attaching the qp to the spec
#ifdef HAVE_RAW_ETH_EXP
flow_create_result = ibv_exp_create_flow(ctx.qp[0], flow_rules);
#else
flow_create_result = ibv_create_flow(ctx.qp[0], flow_rules);
#endif
if (!flow_create_result){
perror("error");
fprintf(stderr, "Couldn't attach QP\n");
return FAILURE;
}
#ifdef HAVE_RAW_ETH_EXP
if (user_param.use_promiscuous) {
struct ibv_exp_flow_attr attr = {
.type = IBV_EXP_FLOW_ATTR_ALL_DEFAULT,
.num_of_specs = 0,
.port = user_param.ib_port,
.flags = 0
};
if ((flow_promisc = ibv_exp_create_flow(ctx.qp[0], &attr)) == NULL) {
perror("error");
fprintf(stderr, "Couldn't attach promiscous rule QP\n");
}
}
#endif
//build ONE Raw Ethernet packets on ctx buffer
create_raw_eth_pkt(&user_param,&ctx, &my_dest_info , &rem_dest_info);
if (user_param.output == FULL_VERBOSITY) {
printf(RESULT_LINE);
printf("%s",(user_param.test_type == ITERATIONS) ? RESULT_FMT_LAT : RESULT_FMT_LAT_DUR);
printf((user_param.cpu_util_data.enable ? RESULT_EXT_CPU_UTIL : RESULT_EXT));
}
// Prepare IB resources for rtr(ready to read)/rts(ready to send)
if (user_param.work_rdma_cm == OFF) {
if (ctx_connect(&ctx, NULL, &user_param, NULL)) {
fprintf(stderr," Unable to Connect the HCA's through the link\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 1;
}
}
//Post Send send_wqes for current message size
ctx_set_send_wqes(&ctx,&user_param,NULL);
// Post receive recv_wqes for current message size
if (ctx_set_recv_wqes(&ctx,&user_param)) {
fprintf(stderr," Failed to post receive recv_wqes\n");
return 1;
}
//latency test function for SEND verb latency test.
if (run_iter_lat_send(&ctx, &user_param))
{
return 17;
}
//print report (like print_report_bw) in the correct format
// (as set before: FMT_LAT or FMT_LAT_DUR)
user_param.test_type == ITERATIONS ? print_report_lat(&user_param) :
print_report_lat_duration(&user_param);
//destory promisc flow
#ifdef HAVE_RAW_ETH_EXP
if (user_param.use_promiscuous) {
if (ibv_exp_destroy_flow(flow_promisc)) {
perror("error");
fprintf(stderr, "Couldn't Destory promisc flow\n");
return FAILURE;
}
}
#endif
//destroy flow
#ifdef HAVE_RAW_ETH_EXP
if (ibv_exp_destroy_flow(flow_create_result)) {
#else
if (ibv_destroy_flow(flow_create_result)) {
#endif
perror("error");
fprintf(stderr, "Couldn't Destory flow\n");
return FAILURE;
}
free(flow_rules);
//Deallocate all perftest resources.
if (destroy_ctx(&ctx, &user_param)) {
fprintf(stderr,"Failed to destroy_ctx\n");
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 1;
}
if (user_param.output == FULL_VERBOSITY)
printf(RESULT_LINE);
DEBUG_LOG(TRACE,"<<<<<<%s",__FUNCTION__);
return 0;
}
static int
mlx5_glue_destroy_flow(struct ibv_flow *flow_id)
{
return ibv_destroy_flow(flow_id);
}
static int
rdmasniff_activate(pcap_t *handle)
{
struct pcap_rdmasniff *priv = handle->priv;
struct ibv_qp_init_attr qp_init_attr;
struct ibv_qp_attr qp_attr;
struct ibv_flow_attr flow_attr;
struct ibv_port_attr port_attr;
int i;
priv->context = ibv_open_device(priv->rdma_device);
if (!priv->context) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to open device %s", handle->opt.device);
goto error;
}
priv->pd = ibv_alloc_pd(priv->context);
if (!priv->pd) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to alloc PD for device %s", handle->opt.device);
goto error;
}
priv->channel = ibv_create_comp_channel(priv->context);
if (!priv->channel) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to create comp channel for device %s", handle->opt.device);
goto error;
}
priv->cq = ibv_create_cq(priv->context, RDMASNIFF_NUM_RECEIVES,
NULL, priv->channel, 0);
if (!priv->cq) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to create CQ for device %s", handle->opt.device);
goto error;
}
ibv_req_notify_cq(priv->cq, 0);
memset(&qp_init_attr, 0, sizeof qp_init_attr);
qp_init_attr.send_cq = qp_init_attr.recv_cq = priv->cq;
qp_init_attr.cap.max_recv_wr = RDMASNIFF_NUM_RECEIVES;
qp_init_attr.cap.max_recv_sge = 1;
qp_init_attr.qp_type = IBV_QPT_RAW_PACKET;
priv->qp = ibv_create_qp(priv->pd, &qp_init_attr);
if (!priv->qp) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to create QP for device %s", handle->opt.device);
goto error;
}
memset(&qp_attr, 0, sizeof qp_attr);
qp_attr.qp_state = IBV_QPS_INIT;
qp_attr.port_num = priv->port_num;
if (ibv_modify_qp(priv->qp, &qp_attr, IBV_QP_STATE | IBV_QP_PORT)) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to modify QP to INIT for device %s", handle->opt.device);
goto error;
}
memset(&qp_attr, 0, sizeof qp_attr);
qp_attr.qp_state = IBV_QPS_RTR;
if (ibv_modify_qp(priv->qp, &qp_attr, IBV_QP_STATE)) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to modify QP to RTR for device %s", handle->opt.device);
goto error;
}
memset(&flow_attr, 0, sizeof flow_attr);
flow_attr.type = IBV_FLOW_ATTR_SNIFFER;
flow_attr.size = sizeof flow_attr;
flow_attr.port = priv->port_num;
priv->flow = ibv_create_flow(priv->qp, &flow_attr);
if (!priv->flow) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to create flow for device %s", handle->opt.device);
goto error;
}
handle->bufsize = RDMASNIFF_NUM_RECEIVES * RDMASNIFF_RECEIVE_SIZE;
handle->buffer = malloc(handle->bufsize);
if (!handle->buffer) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to allocate receive buffer for device %s", handle->opt.device);
goto error;
}
priv->oneshot_buffer = malloc(RDMASNIFF_RECEIVE_SIZE);
if (!priv->oneshot_buffer) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to allocate oneshot buffer for device %s", handle->opt.device);
goto error;
}
priv->mr = ibv_reg_mr(priv->pd, handle->buffer, handle->bufsize, IBV_ACCESS_LOCAL_WRITE);
if (!priv->mr) {
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Failed to register MR for device %s", handle->opt.device);
goto error;
}
for (i = 0; i < RDMASNIFF_NUM_RECEIVES; ++i) {
rdmasniff_post_recv(handle, i);
}
if (!ibv_query_port(priv->context, priv->port_num, &port_attr) &&
port_attr.link_layer == IBV_LINK_LAYER_INFINIBAND) {
handle->linktype = DLT_INFINIBAND;
} else {
handle->linktype = DLT_EN10MB;
}
if (handle->snapshot <= 0 || handle->snapshot > RDMASNIFF_RECEIVE_SIZE)
handle->snapshot = RDMASNIFF_RECEIVE_SIZE;
handle->offset = 0;
handle->read_op = rdmasniff_read;
handle->stats_op = rdmasniff_stats;
handle->cleanup_op = rdmasniff_cleanup;
handle->setfilter_op = install_bpf_program;
handle->setdirection_op = NULL;
handle->set_datalink_op = NULL;
handle->getnonblock_op = pcap_getnonblock_fd;
handle->setnonblock_op = pcap_setnonblock_fd;
handle->oneshot_callback = rdmasniff_oneshot;
handle->selectable_fd = priv->channel->fd;
return 0;
error:
if (priv->mr) {
ibv_dereg_mr(priv->mr);
}
if (priv->flow) {
ibv_destroy_flow(priv->flow);
}
if (priv->qp) {
ibv_destroy_qp(priv->qp);
}
if (priv->cq) {
ibv_destroy_cq(priv->cq);
}
if (priv->channel) {
ibv_destroy_comp_channel(priv->channel);
}
if (priv->pd) {
ibv_dealloc_pd(priv->pd);
}
if (priv->context) {
ibv_close_device(priv->context);
}
if (priv->oneshot_buffer) {
free(priv->oneshot_buffer);
}
return PCAP_ERROR;
}
