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Add the compression for IF5 and RTT measurements for FH and RF

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This commit is contained in:
pyroclaste
2017-02-17 11:38:44 +01:00
parent 9e55f8ebcd
commit 3dd1faadd4
40 changed files with 1477 additions and 252 deletions
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targets/ARCH/ETHERNET/USERSPACE/LIB/eth_raw.c
+88 -27
View File
@@ -145,21 +145,28 @@ int trx_eth_write_raw(openair0_device *device, openair0_timestamp timestamp, voi
memcpy(buff2,(void*)&eth->eh,MAC_HEADER_SIZE_BYTES);
*(int16_t *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int16_t))=1+(i<<1);
*(openair0_timestamp *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int32_t)) = timestamp;
int sent_byte;
if (eth->compression = ALAW_COMPRESS) {
sent_byte = RAW_PACKET_SIZE_BYTES_ALAW(nsamps);
} else {
sent_byte = RAW_PACKET_SIZE_BYTES(nsamps);
}
/*printf("[RRH]write mod_%d %d , len %d, buff %p \n",
Mod_id,eth->sockfd[Mod_id],RAW_PACKET_SIZE_BYTES(nsamps), buff2);*/
while(bytes_sent < RAW_PACKET_SIZE_BYTES(nsamps)) {
while(bytes_sent < sent_byte) {
#if DEBUG
printf("------- TX ------: buff2 current position=%d remaining_bytes=%d bytes_sent=%d \n",
(void *)(buff2+bytes_sent),
RAW_PACKET_SIZE_BYTES(nsamps) - bytes_sent,
sent_byte - bytes_sent,
bytes_sent);
#endif
/* Send packet */
bytes_sent += send(eth->sockfd,
buff2,
RAW_PACKET_SIZE_BYTES(nsamps),
sent_byte,
sendto_flag);
if ( bytes_sent == -1) {
eth->num_tx_errors++;
@@ -172,7 +179,7 @@ int trx_eth_write_raw(openair0_device *device, openair0_timestamp timestamp, voi
*(int16_t *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int16_t)),
*(openair0_timestamp *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int32_t)),
bytes_sent);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, RAW_PACKET_SIZE_BYTES(nsamps), TX_FLAG);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, sent_byte, TX_FLAG);
#endif
eth->tx_actual_nsamps=bytes_sent>>2;
eth->tx_count++;
@@ -240,6 +247,8 @@ int trx_eth_read_raw(openair0_device *device, openair0_timestamp *timestamp, voi
int i=0;
eth_state_t *eth = (eth_state_t*)device->priv;
int rcvfrom_flag =0;
int block_cnt=0;
int again_cnt=0;
eth->rx_nsamps=nsamps;
@@ -247,25 +256,54 @@ int trx_eth_read_raw(openair0_device *device, openair0_timestamp *timestamp, voi
/* buff[i] points to the position in rx buffer where the payload to be received will be placed
buff2 points to the position in rx buffer where the packet header will be placed */
void *buff2 = (void*)(buff[i]-APP_HEADER_SIZE_BYTES-MAC_HEADER_SIZE_BYTES);
/* we don't want to ovewrite with the header info the previous rx buffer data so we store it*/
struct ether_header temp = *(struct ether_header *)buff2;
int32_t temp0 = *(int32_t *)(buff2 + MAC_HEADER_SIZE_BYTES);
openair0_timestamp temp1 = *(openair0_timestamp *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int32_t));
bytes_received=0;
int receive_bytes;
if (eth->compression == ALAW_COMPRESS) {
receive_bytes = RAW_PACKET_SIZE_BYTES_ALAW(nsamps);
} else {
receive_bytes = RAW_PACKET_SIZE_BYTES(nsamps);
}
while(bytes_received < RAW_PACKET_SIZE_BYTES(nsamps)) {
while(bytes_received < receive_bytes) {
again:
bytes_received +=recv(eth->sockfd,
buff2,
RAW_PACKET_SIZE_BYTES(nsamps),
receive_bytes,
rcvfrom_flag);
if (bytes_received ==-1) {
eth->num_rx_errors++;
perror("ETHERNET IF5 READ: ");
if (errno == EAGAIN) continue;
exit(-1);
if (errno == EAGAIN) {
again_cnt++;
usleep(10);
if (again_cnt == 1000) {
perror("ETHERNET IF5 READ (EAGAIN): ");
exit(-1);
} else {
printf("AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN \n");
goto again;
}
} else if (errno == EWOULDBLOCK) {
block_cnt++;
usleep(10);
if (block_cnt == 1000) {
perror("ETHERNET IF5 READ (EWOULDBLOCK): ");
exit(-1);
} else {
printf("BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK \n");
goto again;
}
} else {
perror("ETHERNET IF5 READ");
printf("(%s):\n", strerror(errno));
exit(-1);
}
} else {
/* store the timestamp value from packet's header */
*timestamp = *(openair0_timestamp *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int32_t));
@@ -280,7 +318,7 @@ int trx_eth_read_raw(openair0_device *device, openair0_timestamp *timestamp, voi
*(int16_t *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int16_t)),
*(openair0_timestamp *)(buff2 + MAC_HEADER_SIZE_BYTES + sizeof(int32_t)),
bytes_received);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, RAW_PACKET_SIZE_BYTES(nsamps),RX_FLAG);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, receive_bytes, RX_FLAG);
#endif
@@ -303,19 +341,43 @@ int trx_eth_read_raw_IF4p5(openair0_device *device, openair0_timestamp *timestam
ssize_t packet_size = MAC_HEADER_SIZE_BYTES + sizeof_IF4p5_header_t;
IF4p5_header_t *test_header = (IF4p5_header_t*)(buff[0] + MAC_HEADER_SIZE_BYTES);
int block_cnt=0;
int again_cnt=0;
#ifdef DEBUG
printf("Reading from device %p, eth %p, sockfd %d\n",device,eth,eth->sockfd);
#endif
bytes_received = recv(eth->sockfd,
buff[0],
packet_size,
MSG_PEEK);
if (bytes_received ==-1) {
eth->num_rx_errors++;
perror("ETHERNET IF4p5 READ (header): ");
exit(-1);
while (bytes_received < packet_size) {
again:
bytes_received = recv(eth->sockfd,
buff[0],
packet_size,
MSG_PEEK);
if (bytes_received ==-1) {
eth->num_rx_errors++;
if (errno == EAGAIN) {
again_cnt++;
usleep(10);
if (again_cnt == 1000) {
perror("ETHERNET IF4p5 READ (EAGAIN): ");
exit(-1);
} else {
printf("AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN \n");
goto again;
}
} else if (errno == EWOULDBLOCK) {
block_cnt++;
usleep(10);
if (block_cnt == 1000) {
perror("ETHERNET IF4p5 READ (EWOULDBLOCK): ");
exit(-1);
} else {
printf("BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK BLOCK \n");
goto again;
}
} else {
perror("ETHERNET IF4p5 READ");
printf("(%s):\n", strerror(errno));
exit(-1);
}
}
}
#ifdef DEBUG
for (int i=0;i<packet_size;i++)
@@ -331,8 +393,7 @@ int trx_eth_read_raw_IF4p5(openair0_device *device, openair0_timestamp *timestam
packet_size = RAW_IF4p5_PULFFT_SIZE_BYTES(nblocks);
} else {
packet_size = RAW_IF4p5_PRACH_SIZE_BYTES;
}
}
while(bytes_received < packet_size) {
bytes_received = recv(eth->sockfd,
targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
+39 -24
View File
@@ -260,22 +260,30 @@ int trx_eth_write_udp(openair0_device *device, openair0_timestamp timestamp, voi
// eth->pck_header.seq_num = pck_seq_num;
//eth->pck_header.antenna_id = 1+(i<<1);
//eth->pck_header.timestamp = timestamp;
*(uint16_t *)buff2 = pck_seq_num;
*(uint16_t *)buff2 = eth->pck_seq_num;
*(uint16_t *)(buff2 + sizeof(uint16_t)) = 1+(i<<1);
*(openair0_timestamp *)(buff2 + sizeof(int32_t)) = timestamp;
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TX_SEQ_NUM, pck_seq_num);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TX_SEQ_NUM, eth->pck_seq_num);
int sent_byte;
if (eth->compression == ALAW_COMPRESS) {
sent_byte = UDP_PACKET_SIZE_BYTES_ALAW(nsamps);
} else {
sent_byte = UDP_PACKET_SIZE_BYTES(nsamps);
}
while(bytes_sent < UDP_PACKET_SIZE_BYTES(nsamps)) {
//while(bytes_sent < sent_byte) {
//printf("eth->pck_seq_num: %d\n", eth->pck_seq_num);
#if DEBUG
printf("------- TX ------: buff2 current position=%d remaining_bytes=%d bytes_sent=%d \n",
(void *)(buff2+bytes_sent),
UDP_PACKET_SIZE_BYTES(nsamps) - bytes_sent,
sent_byte - bytes_sent,
bytes_sent);
#endif
/* Send packet */
bytes_sent += sendto(eth->sockfd,
buff2,
UDP_PACKET_SIZE_BYTES(nsamps),
sent_byte,
sendto_flag,
(struct sockaddr*)&eth->dest_addr,
eth->addr_len);
@@ -291,14 +299,15 @@ int trx_eth_write_udp(openair0_device *device, openair0_timestamp timestamp, voi
*(int16_t *)(buff2 + sizeof(int16_t)),
*(openair0_timestamp *)(buff2 + sizeof(int32_t)),
bytes_sent);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, UDP_PACKET_SIZE_BYTES(nsamps), TX_FLAG);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, sent_byte, TX_FLAG);
#endif
eth->tx_actual_nsamps=bytes_sent>>2;
eth->tx_count++;
pck_seq_num++;
if ( pck_seq_num > MAX_PACKET_SEQ_NUM(nsamps,device->openair0_cfg->samples_per_frame) ) pck_seq_num = 1;
eth->pck_seq_num++;
if ( eth->pck_seq_num > MAX_PACKET_SEQ_NUM(nsamps,device->openair0_cfg->samples_per_frame) ) eth->pck_seq_num = 1;
}
}
//}
/* tx buffer values restored */
*(int32_t *)buff2 = temp0;
*(openair0_timestamp *)(buff2 + sizeof(int32_t)) = temp1;
@@ -332,19 +341,24 @@ int trx_eth_read_udp(openair0_device *device, openair0_timestamp *timestamp, voi
bytes_received=0;
block_cnt=0;
int receive_bytes;
if (eth->compression == ALAW_COMPRESS) {
receive_bytes = UDP_PACKET_SIZE_BYTES_ALAW(nsamps);
} else {
receive_bytes = UDP_PACKET_SIZE_BYTES(nsamps);
}
while(bytes_received < UDP_PACKET_SIZE_BYTES(nsamps)) {
while(bytes_received < receive_bytes) {
again:
#if DEBUG
printf("------- RX------: buff2 current position=%d remaining_bytes=%d bytes_recv=%d \n",
(void *)(buff2+bytes_received),
UDP_PACKET_SIZE_BYTES(nsamps) - bytes_received,
receive_bytes - bytes_received,
bytes_received);
#endif
bytes_received +=recvfrom(eth->sockfd,
buff2,
UDP_PACKET_SIZE_BYTES(nsamps),
receive_bytes,
rcvfrom_flag,
(struct sockaddr *)&eth->dest_addr,
(socklen_t *)&eth->addr_len);
@@ -379,28 +393,29 @@ int trx_eth_read_udp(openair0_device *device, openair0_timestamp *timestamp, voi
*(int16_t *)(buff2 + sizeof(int16_t)),
*(openair0_timestamp *)(buff2 + sizeof(int32_t)),
bytes_received);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, UDP_PACKET_SIZE_BYTES(nsamps),RX_FLAG);
dump_packet((device->host_type == BBU_HOST)? "BBU":"RRH", buff2, receive_bytes, RX_FLAG);
#endif
/* store the timestamp value from packet's header */
*timestamp = *(openair0_timestamp *)(buff2 + sizeof(int32_t));
/* store the sequence number of the previous packet received */
if (pck_seq_num_cur == 0) {
pck_seq_num_prev = *(uint16_t *)buff2;
if (eth->pck_seq_num_cur == 0) {
eth->pck_seq_num_prev = *(uint16_t *)buff2;
} else {
pck_seq_num_prev = pck_seq_num_cur;
eth->pck_seq_num_prev = eth->pck_seq_num_cur;
}
/* get the packet sequence number from packet's header */
pck_seq_num_cur = *(uint16_t *)buff2;
//printf("cur=%d prev=%d buff=%d\n",pck_seq_num_cur,pck_seq_num_prev,*(uint16_t *)(buff2));
if ( ( pck_seq_num_cur != (pck_seq_num_prev + 1) ) && !((pck_seq_num_prev==MAX_PACKET_SEQ_NUM(nsamps,device->openair0_cfg->samples_per_frame)) && (pck_seq_num_cur==1 )) && !((pck_seq_num_prev==1) && (pck_seq_num_cur==1))) {
printf("out of order packet received1! %d|%d|%d\n",pck_seq_num_cur,pck_seq_num_prev,(int)*timestamp);
eth->pck_seq_num_cur = *(uint16_t *)buff2;
if ( ( eth->pck_seq_num_cur != (eth->pck_seq_num_prev + 1) ) && !((eth->pck_seq_num_prev==MAX_PACKET_SEQ_NUM(nsamps,device->openair0_cfg->samples_per_frame)) && (eth->pck_seq_num_cur==1 )) && !((eth->pck_seq_num_prev==1) && (eth->pck_seq_num_cur==1))) {
//#if DEBUG
printf("Out of order packet received: current_packet=%d previous_packet=%d timestamp=%llu\n",eth->pck_seq_num_cur,eth->pck_seq_num_prev,*timestamp);
//#endif
}
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_SEQ_NUM,pck_seq_num_cur);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_SEQ_NUM_PRV,pck_seq_num_prev);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_SEQ_NUM,eth->pck_seq_num_cur);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_SEQ_NUM_PRV,eth->pck_seq_num_prev);
eth->rx_actual_nsamps=bytes_received>>2;
eth->rx_count++;
}
}
}
/* tx buffer values restored */
targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
+54 -11
View File
@@ -41,16 +41,24 @@
#include <netinet/ether.h>
#include <unistd.h>
#include <errno.h>
#include <linux/sysctl.h>
#include <sys/sysctl.h>
#include "common_lib.h"
#include "ethernet_lib.h"
int num_devices_eth = 0;
struct sockaddr_in dest_addr[MAX_INST];
int dest_addr_len[MAX_INST];
int trx_eth_start(openair0_device *device) {
eth_state_t *eth = (eth_state_t*)device->priv;
/* initialize socket */
if (eth->flags == ETH_RAW_MODE) {
if (eth->flags == ETH_RAW_MODE) {
printf("Setting ETHERNET to ETH_RAW_IF5_MODE\n");
if (eth_socket_init_raw(device)!=0) return -1;
/* RRH gets openair0 device configuration - BBU sets openair0 device configuration*/
@@ -60,10 +68,14 @@ int trx_eth_start(openair0_device *device) {
if(eth_get_dev_conf_raw(device)!=0) return -1;
}
/* adjust MTU wrt number of samples per packet */
if(ethernet_tune (device,MTU_SIZE,RAW_PACKET_SIZE_BYTES(device->openair0_cfg->samples_per_packet))!=0) return -1;
if(eth->compression == ALAW_COMPRESS) {
if(ethernet_tune (device,MTU_SIZE,RAW_PACKET_SIZE_BYTES_ALAW(device->openair0_cfg->samples_per_packet))!=0) return -1;
} else {
if(ethernet_tune (device,MTU_SIZE,RAW_PACKET_SIZE_BYTES(device->openair0_cfg->samples_per_packet))!=0) return -1;
}
if(ethernet_tune (device,RCV_TIMEOUT,999999)!=0) return -1;
} else if (eth->flags == ETH_RAW_IF4p5_MODE) {
printf("Setting ETHERNET to ETH_RAW_IF4p5_MODE\n");
if (eth_socket_init_raw(device)!=0) return -1;
/* RRH gets openair0 device configuration - BBU sets openair0 device configuration*/
@@ -74,11 +86,11 @@ int trx_eth_start(openair0_device *device) {
}
/* adjust MTU wrt number of samples per packet */
if(ethernet_tune (device,MTU_SIZE,RAW_IF4p5_PRACH_SIZE_BYTES)!=0) return -1;
if(ethernet_tune (device,RCV_TIMEOUT,999999)!=0) return -1;
} else if (eth->flags == ETH_UDP_IF4p5_MODE) {
printf("Setting ETHERNET to UDP_IF4p5_MODE\n");
if (eth_socket_init_udp(device)!=0) return -1;
if (eth_socket_init_udp(device)!=0) return -1;
if (device->host_type == BBU_HOST) {
if(eth_set_dev_conf_udp(device)!=0) return -1;
} else {
@@ -102,7 +114,9 @@ int trx_eth_start(openair0_device *device) {
/* apply additional configuration */
if(ethernet_tune (device, SND_BUF_SIZE,2000000000)!=0) return -1;
if(ethernet_tune (device, RCV_BUF_SIZE,2000000000)!=0) return -1;
if(ethernet_tune (device, KERNEL_SND_BUF_MAX_SIZE, 200000000)!=0) return -1;
if(ethernet_tune (device, KERNEL_RCV_BUF_MAX_SIZE, 200000000)!=0) return -1;
return 0;
}
@@ -183,10 +197,12 @@ int ethernet_tune(openair0_device *device, unsigned int option, int value) {
eth_state_t *eth = (eth_state_t*)device->priv;
struct timeval timeout;
struct ifreq ifr;
char system_cmd[256];
// char* if_name=DEFAULT_IF;
// struct in_addr ia;
// struct if_nameindex *ids;
char system_cmd[256];
int rname[] = { CTL_NET, NET_CORE, NET_CORE_RMEM_MAX };
int wname[] = { CTL_NET, NET_CORE, NET_CORE_WMEM_MAX };
int namelen=3;
int newval[1];
int newlen=sizeof(newval);
int ret=0;
// int i=0;
@@ -309,7 +325,25 @@ int ethernet_tune(openair0_device *device, unsigned int option, int value) {
perror("[ETHERNET] Can't set ring parameters\n");
}
break;
case KERNEL_RCV_BUF_MAX_SIZE:
newval[0] = value;
ret=sysctl(rname, namelen, NULL, 0, newval, newlen);
if (ret) {
fprintf(stderr,"[ETHERNET] Error using sysctl():%s\n",strerror(errno));
} else{
printf("[ETHERNET] Kernel network receive buffer max size is set to %u\n",newval[0]);
}
break;
case KERNEL_SND_BUF_MAX_SIZE:
newval[0] = value;
ret=sysctl(wname, namelen, NULL, 0, newval, newlen);
if (ret) {
fprintf(stderr,"[ETHERNET] Error using sysctl():%s\n",strerror(errno));
} else{
printf("[ETHERNET] Kernel network send buffer max size is set to %u\n",newval[0]);
}
break;
default:
break;
}
@@ -337,6 +371,15 @@ int transport_init(openair0_device *device, openair0_config_t *openair0_cfg, eth
printf("transport_init: Unknown transport preference %d - default to RAW", eth_params->transp_preference);
eth->flags = ETH_RAW_MODE;
}
if (eth_params->if_compress == 0) {
eth->compression = NO_COMPRESS;
} else if (eth_params->if_compress == 1) {
eth->compression = ALAW_COMPRESS;
} else {
printf("transport_init: Unknown compression scheme %d - default to ALAW", eth_params->if_compress);
eth->compression = ALAW_COMPRESS;
}
printf("[ETHERNET]: Initializing openair0_device for %s ...\n", ((device->host_type == BBU_HOST) ? "BBU": "RRH"));
device->Mod_id = 0;//num_devices_eth++;
targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.h
+13 -1
View File
@@ -78,6 +78,8 @@ typedef struct {
unsigned int tx_timeout_ms;
/*!\brief runtime flags */
uint32_t flags;
/*!\compression enalbe */
uint32_t compression;
/*!\ time offset between transmiter timestamp and receiver timestamp */
double tdiff;
/*!\ calibration */
@@ -98,7 +100,7 @@ typedef struct {
int num_seq_errors;
/*!\brief number of errors in interface's receiver */
int num_rx_errors;
/*!\brief umber of errors in interface's transmitter */
/*!\brief number of errors in interface's transmitter */
int num_tx_errors;
/*!\brief current TX timestamp */
@@ -117,6 +119,12 @@ typedef struct {
uint64_t tx_count;
/*!\brief number of packets received */
uint64_t rx_count;
/*!\brief TX sequence number*/
uint16_t pck_seq_num;
/*!\brief Current RX sequence number*/
uint16_t pck_seq_num_cur;
/*!\brief Previous RX sequence number */
uint16_t pck_seq_num_prev;
struct ether_header eh;
@@ -155,6 +163,10 @@ typedef enum {
COALESCE_PAR,
/*!\brief pause parameters of ethernet device */
PAUSE_PAR,
/*!\brief kernel network receive buffer maximun size */
KERNEL_RCV_BUF_MAX_SIZE,
/*!\brief kernel network send buffer maximun size */
KERNEL_SND_BUF_MAX_SIZE,
MAX_OPT
} eth_opt_t;
targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h
+12
View File
@@ -47,6 +47,14 @@
#define ETH_RAW_IF5_MOBIPASS 4
#endif
// COMMOM HEADER LENGTHS
#define NO_COMPRESS 0
#define ALAW_COMPRESS 1
#define UDP_HEADER_SIZE_BYTES 8
#define IPV4_HEADER_SIZE_BYTES 60 // This is the maximum IPv4 header length
// Time domain RRH packet sizes
#define MAC_HEADER_SIZE_BYTES (sizeof(struct ether_header))
#define MAX_PACKET_SEQ_NUM(spp,spf) (spf/spp)
@@ -54,6 +62,10 @@
#define UDP_PACKET_SIZE_BYTES(nsamps) (APP_HEADER_SIZE_BYTES + PAYLOAD_SIZE_BYTES(nsamps))
#define RAW_PACKET_SIZE_BYTES(nsamps) (APP_HEADER_SIZE_BYTES + MAC_HEADER_SIZE_BYTES + PAYLOAD_SIZE_BYTES(nsamps))
#define PAYLOAD_SIZE_BYTES_ALAW(nsamps) (nsamps<<1)
#define UDP_PACKET_SIZE_BYTES_ALAW(nsamps) (APP_HEADER_SIZE_BYTES + PAYLOAD_SIZE_BYTES_ALAW(nsamps))
#define RAW_PACKET_SIZE_BYTES_ALAW(nsamps) (APP_HEADER_SIZE_BYTES + MAC_HEADER_SIZE_BYTES + PAYLOAD_SIZE_BYTES_ALAW(nsamps))
// Packet sizes for IF4p5 interface format
#define DATA_BLOCK_SIZE_BYTES(scaled_nblocks) (sizeof(uint16_t)*scaled_nblocks)
#define PRACH_HARD_CODED_NUM_SAMPLES (839*2)