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Integrate channel pipeline with vrtsim

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Integrate channel pipeline library with vrtsim with two acceleration
options chosen at compile time:
 - threadpool if CUDA support is disabled
 - CUDA otherwise
This commit is contained in:
Bartosz Podrygajlo
2026-03-30 09:48:58 +02:00
parent 47ba5d3ca5
commit 96cec32eaf
4 changed files with 204 additions and 332 deletions
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common/utils/shm_iq_channel/shm_td_iq_channel.c
+16 -14
View File
@@ -33,6 +33,8 @@ typedef struct ShmTDIQChannel_s {
char name[256];
sample_t *tx_iq_data;
sample_t *rx_iq_data;
int nb_tx_ant;
int nb_rx_ant;
bool abort;
} ShmTDIQChannel;
@@ -61,6 +63,8 @@ ShmTDIQChannel *shm_td_iq_channel_create(const char *name, int num_tx_ant, int n
strncpy(channel->name, name, sizeof(channel->name) - 1);
channel->tx_iq_data = (sample_t *)(shm_ptr + 1);
channel->rx_iq_data = channel->tx_iq_data + tx_buffer_size / sizeof(sample_t);
channel->nb_tx_ant = num_tx_ant;
channel->nb_rx_ant = num_rx_ant;
channel->data = shm_ptr;
channel->type = IQ_CHANNEL_TYPE_SERVER;
pthread_mutexattr_t mutex_attr;
@@ -113,9 +117,15 @@ ShmTDIQChannel *shm_td_iq_channel_connect(const char *name, int timeout_in_secon
ShmTDIQChannel *channel = calloc_or_fail(1, sizeof(ShmTDIQChannel));
channel->data = shm_ptr;
channel->tx_iq_data = (sample_t *)(shm_ptr + 1);
sample_t *tx_buffer = (sample_t *)(shm_ptr + 1);
size_t tx_buffer_size = CIRCULAR_BUFFER_SIZE * sizeof(sample_t) * channel->data->num_antennas_tx;
channel->rx_iq_data = channel->tx_iq_data + tx_buffer_size / sizeof(sample_t);
sample_t *rx_buffer = tx_buffer + tx_buffer_size / sizeof(sample_t);
// Flip the order between TX and RX to simplify tx/rx functions
channel->tx_iq_data = rx_buffer;
channel->rx_iq_data = tx_buffer;
channel->nb_tx_ant = channel->data->num_antennas_rx;
channel->nb_rx_ant = channel->data->num_antennas_tx;
printf("\033[38;5;208mnb_tx_ant, nb_rx_ant: %d, %d\n\033[0m", channel->nb_tx_ant, channel->nb_rx_ant);
channel->type = IQ_CHANNEL_TYPE_CLIENT;
while (shm_ptr->magic != SHM_MAGIC_NUMBER) {
printf("Waiting for server to initialize shared memory\n");
@@ -131,6 +141,7 @@ IQChannelErrorType shm_td_iq_channel_tx(ShmTDIQChannel *channel,
int antenna,
const sample_t *tx_iq_data)
{
AssertFatal(antenna < channel->nb_tx_ant, "Invalid antenna index %d num_antennas %d\n", antenna, channel->nb_tx_ant);
ShmTDIQChannelData *data = channel->data;
// timestamp in the past
uint64_t current_time = data->timestamp;
@@ -142,12 +153,7 @@ IQChannelErrorType shm_td_iq_channel_tx(ShmTDIQChannel *channel,
return CHANNEL_ERROR_TOO_EARLY;
}
sample_t *base_ptr;
if (channel->type == IQ_CHANNEL_TYPE_CLIENT) {
base_ptr = channel->rx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
} else {
base_ptr = channel->tx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
}
sample_t *base_ptr = channel->tx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
uint64_t first_sample = timestamp % CIRCULAR_BUFFER_SIZE;
uint64_t last_sample = first_sample + num_samples - 1;
@@ -167,6 +173,7 @@ IQChannelErrorType shm_td_iq_channel_rx(ShmTDIQChannel *channel,
int antenna,
sample_t *tx_iq_data)
{
AssertFatal(antenna < channel->nb_rx_ant, "Invalid antenna index %d num_antennas %d\n", antenna, channel->nb_rx_ant);
ShmTDIQChannelData *data = channel->data;
// timestamp in the future
uint64_t current_time = data->timestamp;
@@ -178,12 +185,7 @@ IQChannelErrorType shm_td_iq_channel_rx(ShmTDIQChannel *channel,
return CHANNEL_ERROR_TOO_LATE;
}
sample_t *base_ptr;
if (channel->type == IQ_CHANNEL_TYPE_CLIENT) {
base_ptr = channel->tx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
} else {
base_ptr = channel->rx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
}
sample_t *base_ptr = channel->rx_iq_data + antenna * CIRCULAR_BUFFER_SIZE;
uint64_t first_sample = timestamp % CIRCULAR_BUFFER_SIZE;
uint64_t last_sample = first_sample + num_samples - 1;