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GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > LCS / V1-5-2

Constituent: lcs_test     Tag: rad750

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LCS_fragment.c File Reference

Test reconstruction of hardware fragments. More...

#include <stdio.h>
#include <string.h>
#include <time.h>
#include "PBS/PBS.h"
#include "PBS/FORK.h"
#include "PBS/FPA.h"
#include "ITC/ITC_drvdefs.h"
#include "LCS/LCS_msgs.h"
#include "LCS_prvtest.h"

Include dependency graph for LCS_fragment.c:

Functions
static WUT_cb_status	expireTimer (void *prm, WUT_tmr *wut)
	Timer callback routine to queue a message back to a fork.
static FORK_cb_status	forkFragmentPre (FORK_cb_prm *prm, FORK_msg_hdr *msg)
	Send off a precursor message to "upset" the far side.
static FORK_cb_status	forkFragmentFrg (FORK_cb_prm *prm, FORK_msg_hdr *msg)
	Send off the small message.
static void	freeFragment (ITC_QueueItem *qitem, unsigned int status, void *prm0, void *prm1, void *prm2)
	Free allocated buffer.
unsigned int	LCS_fragment (ITC_NodeID dnid, ITC_TaskID dtid, ITC_QueueID dqid, ITC_ProtID pid, ITC_TaskID stid)
	Main routine for LCS message (hardware) fragmentation test.

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Detailed Description

Test reconstruction of hardware fragments.

CVS $Id: LCS_fragment.c,v 1.1 2005/09/08 03:54:13 apw Exp $

Author:

A.P.Waite

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Function Documentation

static WUT_cb_status expireTimer (  void *  prm, WUT_tmr *  wut )  [static]

Timer callback routine to queue a message back to a fork. Parameters: prm  (in) User context parameter wut  (in) Timer handle expireTimer() is the routine called at interrupt level by the timeout timer. It's responsible for getting the victim message sent.

static FORK_cb_status forkFragmentFrg (  FORK_cb_prm *  prm, FORK_msg_hdr *  msg )  [static]

Send off the small message. forkFragmentFrg() sends off the victim message.

static FORK_cb_status forkFragmentPre (  FORK_cb_prm *  prm, FORK_msg_hdr *  msg )  [static]

Send off a precursor message to "upset" the far side. forkFragmentPre() sends off a precursor message to the far side instructing it to start introducing fragmantation.

static void freeFragment (  ITC_QueueItem *  qitem, unsigned int  status, void *  prm0, void *  prm1, void *  prm2 )  [static]

Free allocated buffer. Parameters: qitem  (in) Queue item (unused) status  (in) Processing completion code (unused) prm0  (in) User parameter 0 (unused) prm1  (in) User parameter 1 (unused) prm2  (in) User parameter 2 (unused) freeFragment() frees the messages used in the fragmentation test.

unsigned int LCS_fragment (  ITC_NodeID  dnid, ITC_TaskID  dtid, ITC_QueueID  dqid, ITC_ProtID  pid, ITC_TaskID  stid )

Main routine for LCS message (hardware) fragmentation test. Parameters: dnid  (in) Destination ITC node ID dtid  (in) Destination ITC task ID dqid  (in) Destination ITC queue ID pid  (in) Message protocol stid  (in) Source ITC task ID LCS_fragment() sends two messages. The first (short) message causes the receiver to set up a deliberate fragmentation (at semi-random times, sets a bit in the far side LCB's LATp CSR register). The second (long) message then stumbles into that situation.

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