From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 28 Jul 2000 01:21:51 -0400
From: arisawa@ar.aichi-u.ac.jp
Message-Id: <200007280521.BAA08647@cse.psu.edu>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] 53c895 failed to INIT
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Hello,

nigel@9fs.org said:
>#define KPRINT if(1)print
>#define IPRINT if(1)print
>#define DEBUG(n) ((n) <= 2)

and jmk@plan9.bell-labs.com:
>Which of the fileserver kernels are you using (plan9pc, emelie, etc.)?
>They were all slightly different in the original release but will all
>be the same in the update planned this weekend.
>
>What do you have in plan9.ini?

Thanks.

My 9pcfs is based on emelie and my plan9.ini is as follows.
----- plan9.ini ----
*nomp=1
bootfile=fd0!dos!9pcfs
distname=plan9
scsi0=type=53c8xx
ether0=type=elnk3
monitor=cga
mouseport=ps2
nvr=fd!0!plan9.nvr
sysname=gaea
--------------------

Manual says known scsi type is mylex and 53c8xx.
Not ncr53c8xx.
However you will find in fs/emelie/scsi.c:

static struct {
	char*	type;
	Scsiio	(*reset)(int, ISAConf*);
} scsictlr[] = {
	{ "aha1542", buslogic, },
	{ "buslogic", buslogic, },
	{ "ncr53c8xx", ncr53c8xxreset, },
	{ 0, },
};

So I have add a line this time
	{ "53c8xx", ncr53c8xxreset, },
so that 9pcfs can go farther to the line including (*scsictlr[n].reset)(ctlrno, ctlr))
 in fs/emelie/scsi.c:
		for(n = 0; scsictlr[n].type; n++) {
			if(strcmp(scsictlr[n].type, ctlr->type))
				continue;
			if((ctlr->io = (*scsictlr[n].reset)(ctlrno, ctlr)) == 0)
				break;

However problem has not fixed; 9pcfs shows the same message as before:
scsi#0: 53c895: port 0 Failed to INIT controller
So I investigated farther.

In the function ncr53c8xxreset() in fs/emelie/scsincr53c8xx.c,
9pcfs can proceed to init(ctlr, isa, differential).
So I added the debugging code in init function as follows:
	rid = pcicfgr8(pcidev, PciRID);
	for (var = 0; var < MAXVAR; var++) {
print("scsincr53c8xx.c: init():  did=%d,%d rid=%d, %d\n",
pcidev->did,variant[var].did,rid,variant[var].maxrid);
		if (pcidev->did == variant[var].did && rid <= variant[var].maxrid)
			break;
	}
	if (var >= MAXVAR)
		return 0;
	print("scsi#%d: %s rev. 0x%.2x intr=%d command=%.4x\n",
		ctlr->ctlrno, variant[var].name, rid,
		pcidev->intl, pcicfgr16(pcidev, PciPCR));

The result is:
scsincr53c8xx.c: init():  did=12,1 rid=1,15
scsincr53c8xx.c: init():  did=12,1 rid=1,31
scsincr53c8xx.c: init():  did=12,1 rid=1,255
scsincr53c8xx.c: init():  did=12,5 rid=1,255
scsincr53c8xx.c: init():  did=12,4 rid=1,255
scsincr53c8xx.c: init():  did=12,3 rid=1,15
scsincr53c8xx.c: init():  did=12,3 rid=1,255
scsincr53c8xx.c: init():  did=12,6 rid=1,15
scsincr53c8xx.c: init():  did=12,6 rid=1,255
scsincr53c8xx.c: init():  did=12,15 rid=1,1
scsincr53c8xx.c: init():  did=12,15 rid=1,255
scsincr53c8xx.c: init():  did=12,13 rid=1,255
scsincr53c8xx.c: init():  did=12,11 rid=1,255

Thanks again.

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp