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Added link reset for ^X reboots & removed task checking in response matching code

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This commit is contained in:
John Winans
1994-06-08 10:38:31 +00:00
parent ee9bc61792
commit 7a997e7822
1 changed files with 65 additions and 23 deletions
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88
src/drv/drvPEPBitBus.c
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@@ -49,6 +49,7 @@
#include <wdLib.h>
#include <tickLib.h>
#include <vme.h>
#include <vxLib.h>
#include <task_params.h>
#include <module_types.h>
@@ -68,6 +69,7 @@
STATIC long reportBB(), initBB(), qBBReq();
STATIC int xvmeTmoHandler(), xvmeRxTask(), xvmeTxTask(), xvmeWdTask();
STATIC int xvmeIrqRdav(), xvmeIrqRcmd();
int bbKill(int link);
int bbDebug = 0; /* set to 1 from the shell to print debugging info */
@@ -124,6 +126,24 @@ reportBB()
return(OK);
}
/******************************************************************
*
* Reset hook function... takes down ALL the bitbus links and leaves
* them down.
*
******************************************************************/
STATIC void BBrebootFunc(void)
{
int i;
for (i=0; i<BB_NUM_LINKS; i++)
{
if (checkLink(i) == OK)
bbKill(i);
}
taskDelay(sysClkRateGet()); /* Give it a second in case prints something */
return;
}
/******************************************************************
* FUNCTION: initBB()
* PURPOSE : Called by iocInit processing. Initializes PB-BIT
@@ -150,6 +170,7 @@ initBB()
printf("initBB(): BB devices already initialized!\n");
return(ERROR);
}
rebootHookAdd(BBrebootFunc);
/* Figure out where the short io address space is */
sysBusToLocalAdrs(VME_AM_SUP_SHORT_IO , 0, &short_base);
@@ -553,7 +574,8 @@ int link;
/* see if node's match */
if (rxDpvtHead->txMsg.node == rxHead[4]) {
/* see if the tasks match */
if (rxDpvtHead->txMsg.tasks == rxHead[5]) {
/* if (rxDpvtHead->txMsg.tasks == rxHead[5]) */
{
/* They match, finish putting response into the rxMsg buffer */
if (bbDebug>4)
printf("xvmeRxTask(%d): reply to 0x%08.8X\n",
@@ -711,6 +733,24 @@ int link;
return(0);
}
/*******************************************************************
*
* Same as bbReset() but it takes the link down and leaves it down.
*
*******************************************************************/
int bbKill(int link)
{
if (checkLink(link) != ERROR)
{
pXvmeLink[link]->pbbLink->nukeEm = 2;
semGive(pXvmeLink[link]->watchDogSem);
}
else
printf("Link %d not installed.\n", link);
return(0);
}
/******************************************************************
* FUNCTION: xvmeWdTask()
@@ -882,6 +922,28 @@ int link;
}
pnode = npnode;
}
/* Finish the link reboot if necessary */
if (plink->nukeEm != 0)
{
/* shut down the bitbus card. */
xvmeReset(pXvmeLink[link]->bbRegs, link);
if (plink->nukeEm == 2)
{
/*
* Stop the watchdog task so the link stays dead.
* Since the busy list is locked and the nukeEm flag is still set,
* this link can not do any more work.
*/
exit();
}
/* clear the abort_flag */
pXvmeLink[link]->abortFlag = 0;
plink->nukeEm = 0;
}
if (plink->busyList.head != NULL) {
/* Restart the dog timer */
@@ -893,16 +955,6 @@ int link;
}
semGive(plink->busyList.sem);
/* Finish the link reboot if necessary */
if (plink->nukeEm != 0) {
xvmeReset(pXvmeLink[link]->bbRegs, link);
/* clear the abort_flag */
pXvmeLink[link]->abortFlag = 0;
plink->nukeEm = 0;
}
}
}
@@ -1034,8 +1086,8 @@ int link;
if (pXvmeLink[link]->abortFlag == 0) {
/* don't add to busy list if was a RAC_RESET_SLAVE */
if (pnode->txMsg.cmd != RAC_RESET_SLAVE) {
if ((pnode->txMsg.cmd != RAC_RESET_SLAVE) && (pnode->txMsg.tasks != 0))
{
/* Lock the busy list */
semTake(plink->busyList.sem, WAIT_FOREVER);
@@ -1236,13 +1288,3 @@ int dumpStat(link)
printf("stat_ctl reg: %02x\n",stat_ctl);
return(OK);
}