ngcbAcqUdp.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <netdb.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <linux/version.h>
#include <ngc/core/ngcbDrv.h>

Classes
struct	ngcb_udp_t

Macros
#define	_GNU_SOURCE
#define	_REENTRANT
#define	ETH_MTU   9000
#define	MUDPI_MTU   (ETH_MTU - 28)
#define	RTMS_MTU   (MUDPI_MTU - 32 - 2)
#define	RTMS_PL_MAX   (RTMS_MTU - 16)

Functions
int	_getIfAddr (const char *name, char *addr, char *erms)

Variables
ngcb_dma_api	ngcbAcqUdp

Detailed Description

Copyright

SPDX-FileCopyrightText: 2026 European Southern Observatory (ESO) SPDX-License-Identifier: LGPL-3.0-only

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

_REENTRANT

#define _REENTRANT

ETH_MTU

#define ETH_MTU   9000

Maximum transmission unit size (ethernet payload)

MUDPI_MTU

#define MUDPI_MTU   (ETH_MTU - 28)

Maximum space for the MUDPI packet

RTMS_MTU

#define RTMS_MTU   (MUDPI_MTU - 32 - 2)

Maximum space for the RTMS packet

RTMS_PL_MAX

#define RTMS_PL_MAX   (RTMS_MTU - 16)

Maximum RTMS payload size. This is 8922: 9000(MTU) - 28(IPv4,UDP) - 32(MUDPI hdr) - 2(MUDPI checksum) - 16(RTMS hdr)

Function Documentation

_getIfAddr()

int _getIfAddr	(	const char *	name,
		char *	addr,
		char *	erms )

Get NIC address

Variable Documentation

ngcbAcqUdp

ngcb_dma_api ngcbAcqUdp

Initial value:

= {
  .Open = _open,
  .Close = _close,
  .Alloc = _alloc,
  .Free = _free,
  .Clr = ngcbDma0Clr,
  .Init = _init,
  .Stop = _stop,
  .GetCnt = _getCnt,
  .Wait = _wait,
  .Stat = _getStatus,
  .Overflow = ngcbDma0Overflow,
  .IppCfg = ngcbDma0IppCfg,
  .DevRd = ngcbDma0DevRd,
  .DevWr = ngcbDma0DevWr,
  .param = (ngcb_dma_p_t *)NULL,
  .deviceOpen = 0
}

API