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These should have been the 4.4Lite versions. duh.

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This commit is contained in:
hpeyerl 1994-07-02 06:03:47 +00:00
parent ac50c9ed77
commit 3214723fcf
2 changed files with 176 additions and 78 deletions
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242
sys/dev/ccd.c
View File

@ -1,9 +1,9 @@
/* $NetBSD: ccd.c,v 1.2 1994/06/29 06:31:30 cgd Exp $ */
/* $NetBSD: ccd.c,v 1.3 1994/07/02 06:03:47 hpeyerl Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
@ -39,7 +39,7 @@
*
* from: Utah $Hdr: cd.c 1.6 90/11/28$
*
* @(#)cd.c 7.4 (Berkeley) 5/7/91
* @(#)cd.c 8.2 (Berkeley) 11/16/93
*/
/*
@ -50,27 +50,33 @@
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/dkstat.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/stat.h>
#ifdef COMPAT_NOLABEL
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <sys/fcntl.h>
#endif
#include <dev/ccdvar.h>
#ifdef DEBUG
int ccddebug = 0x00;
#define CDB_FOLLOW 0x01
#define CDB_INIT 0x02
#define CDB_IO 0x04
#define CCDB_FOLLOW 0x01
#define CCDB_INIT 0x02
#define CCDB_IO 0x04
#endif
struct buf ccdbuf[NCCD];
struct buf *ccdbuffer();
char *ccddevtostr();
int ccdiodone();
void ccdiodone();
#define ccdunit(x) ((minor(x) >> 3) & 0x7) /* for consistency */
#define ccdunit(x) ((minor(x) >> 3) & 0xf) /* for consistency */
#define getcbuf() \
((struct buf *)malloc(sizeof(struct buf), M_DEVBUF, M_WAITOK))
@ -85,23 +91,62 @@ struct ccd_softc {
struct ccdcinfo sc_cinfo[NCCDISKS]; /* component info */
struct ccdiinfo *sc_itable; /* interleave table */
int sc_usecnt; /* number of requests active */
struct buf *sc_bp; /* "current" request */
int sc_dk; /* disk index */
} ccd_softc[NCCD];
};
/* sc_flags */
#define CDF_ALIVE 0x01
#define CDF_INITED 0x02
#define CCDF_ALIVE 0x01
#define CCDF_INITED 0x02
/*
* ccdattach() is called at boot time in new systems. We do
* nothing here since old systems will not call this.
struct ccd_softc *ccd_softc;
int numccd;
/*
* Since this is called after auto-configuration of devices,
* we can handle the initialization here.
*
* XXX this will not work if you want to use a ccd as your primary
* swap device since swapconf() has been called before now.
*/
void
ccdattach(n)
int n;
{
ccdattach(num)
int num;
{
char *mem;
register u_long size;
register struct ccddevice *ccd;
extern int dkn;
if (num <= 0)
return;
size = num * sizeof(struct ccd_softc);
mem = malloc(size, M_DEVBUF, M_NOWAIT);
if (mem == NULL) {
printf("WARNING: no memory for concatonated disks\n");
return;
}
bzero(mem, size);
ccd_softc = (struct ccd_softc *)mem;
numccd = num;
for (ccd = ccddevice; ccd->ccd_unit >= 0; ccd++) {
/*
* XXX
* Assign disk index first so that init routine
* can use it (saves having the driver drag around
* the ccddevice pointer just to set up the dk_*
* info in the open routine).
*/
if (dkn < DK_NDRIVE)
ccd->ccd_dk = dkn++;
else
ccd->ccd_dk = -1;
if (ccdinit(ccd))
printf("ccd%d configured\n", ccd->ccd_unit);
else if (ccd->ccd_dk >= 0) {
ccd->ccd_dk = -1;
dkn--;
}
}
}
ccdinit(ccd)
@ -113,9 +158,12 @@ ccdinit(ccd)
register int ix;
size_t minsize;
dev_t dev;
struct bdevsw *bsw;
int error;
struct proc *p = curproc; /* XXX */
#ifdef DEBUG
if (ccddebug & (CDB_FOLLOW|CDB_INIT))
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
printf("ccdinit: unit %d\n", ccd->ccd_unit);
#endif
cs->sc_dk = ccd->ccd_dk;
@ -132,12 +180,22 @@ ccdinit(ccd)
break;
ci = &cs->sc_cinfo[ix];
ci->ci_dev = dev;
bsw = &bdevsw[major(dev)];
/*
* Open the partition
*/
if (bsw->d_open &&
(error = (*bsw->d_open)(dev, 0, S_IFBLK, p))) {
printf("ccd%d: component %s open failed, error = %d\n",
ccd->ccd_unit, ccddevtostr(dev), error);
return(0);
}
/*
* Calculate size (truncated to interleave boundary
* if necessary.
*/
if (bdevsw[major(dev)].d_psize) {
size = (size_t) (*bdevsw[major(dev)].d_psize)(dev);
if (bsw->d_psize) {
size = (size_t) (*bsw->d_psize)(dev);
if ((int)size < 0)
size = 0;
} else
@ -146,9 +204,27 @@ ccdinit(ccd)
size -= size % cs->sc_ileave;
if (size == 0) {
printf("ccd%d: not configured (component %s missing)\n",
ccd->ccd_unit, ccddevtostr(ci->ci_dev));
ccd->ccd_unit, ccddevtostr(dev));
return(0);
}
#ifdef COMPAT_NOLABEL
/*
* XXX if this is a 'c' partition then we need to mark the
* label area writeable since there cannot be a label.
*/
if ((minor(dev) & 7) == 2 && bsw->d_open) {
int i, flag;
for (i = 0; i < nchrdev; i++)
if (ccdevsw[i].d_open == bsw->d_open)
break;
if (i != nchrdev && ccdevsw[i].d_ioctl) {
flag = 1;
(void)(*ccdevsw[i].d_ioctl)(dev, DIOCWLABEL,
(caddr_t)&flag, FWRITE, p);
}
}
#endif
if (minsize == 0 || size < minsize)
minsize = size;
ci->ci_size = size;
@ -159,7 +235,7 @@ ccdinit(ccd)
* If uniform interleave is desired set all sizes to that of
* the smallest component.
*/
if (ccd->ccd_flags & CDF_UNIFORM) {
if (ccd->ccd_flags & CCDF_UNIFORM) {
for (ci = cs->sc_cinfo;
ci < &cs->sc_cinfo[cs->sc_nccdisks]; ci++)
ci->ci_size = minsize;
@ -183,12 +259,13 @@ ccdinit(ccd)
printf("interleaved at %d blocks\n", cs->sc_ileave);
else
printf("concatenated\n");
cs->sc_flags = CDF_ALIVE | CDF_INITED;
cs->sc_flags = CCDF_ALIVE | CCDF_INITED;
return(1);
}
/*
* XXX not really ccd specific.
* Could be called something like bdevtostr in machine/conf.c.
*/
char *
ccddevtostr(dev)
@ -196,17 +273,21 @@ ccddevtostr(dev)
{
static char dbuf[5];
dbuf[1] = 'd';
switch (major(dev)) {
#ifdef hp300
case 2:
dbuf[0] = 'r';
dbuf[0] = 'r'; dbuf[1] = 'd';
break;
case 4:
dbuf[0] = 's';
dbuf[0] = 's'; dbuf[1] = 'd';
break;
case 5:
dbuf[0] = 'c';
dbuf[0] = 'c'; dbuf[1] = 'd';
break;
case 6:
dbuf[0] = 'v'; dbuf[1] = 'n';
break;
#endif
default:
dbuf[0] = dbuf[1] = '?';
break;
@ -227,7 +308,7 @@ ccdinterleave(cs)
u_long size;
#ifdef DEBUG
if (ccddebug & CDB_INIT)
if (ccddebug & CCDB_INIT)
printf("ccdinterleave(%x): ileave %d\n", cs, cs->sc_ileave);
#endif
/*
@ -254,7 +335,7 @@ ccdinterleave(cs)
}
ii->ii_ndisk = 0;
#ifdef DEBUG
if (ccddebug & CDB_INIT)
if (ccddebug & CCDB_INIT)
printiinfo(cs->sc_itable);
#endif
return(1);
@ -302,7 +383,7 @@ ccdinterleave(cs)
size = smallci->ci_size;
}
#ifdef DEBUG
if (ccddebug & CDB_INIT)
if (ccddebug & CCDB_INIT)
printiinfo(cs->sc_itable);
#endif
return(1);
@ -331,15 +412,14 @@ ccdopen(dev, flags)
register struct ccd_softc *cs = &ccd_softc[unit];
#ifdef DEBUG
if (ccddebug & CDB_FOLLOW)
if (ccddebug & CCDB_FOLLOW)
printf("ccdopen(%x, %x)\n", dev, flags);
#endif
if (unit >= NCCD || (cs->sc_flags & CDF_ALIVE) == 0)
if (unit >= numccd || (cs->sc_flags & CCDF_ALIVE) == 0)
return(ENXIO);
return(0);
}
void
ccdstrategy(bp)
register struct buf *bp;
{
@ -349,10 +429,10 @@ ccdstrategy(bp)
register int sz, s;
#ifdef DEBUG
if (ccddebug & CDB_FOLLOW)
if (ccddebug & CCDB_FOLLOW)
printf("ccdstrategy(%x): unit %d\n", bp, unit);
#endif
if ((cs->sc_flags & CDF_INITED) == 0) {
if ((cs->sc_flags & CCDF_INITED) == 0) {
bp->b_error = ENXIO;
bp->b_flags |= B_ERROR;
goto done;
@ -375,31 +455,27 @@ ccdstrategy(bp)
bp->b_resid = bp->b_bcount;
/*
* "Start" the unit.
* XXX: the use of sc_bp is just to retain the "traditional"
* interface to the start routine.
*/
s = splbio();
cs->sc_bp = bp;
ccdstart(unit);
ccdstart(cs, bp);
splx(s);
return;
done:
biodone(bp);
}
ccdstart(unit)
int unit;
ccdstart(cs, bp)
register struct ccd_softc *cs;
register struct buf *bp;
{
register struct ccd_softc *cs = &ccd_softc[unit];
register struct buf *bp = cs->sc_bp;
register long bcount, rcount;
struct buf *cbp;
caddr_t addr;
daddr_t bn;
#ifdef DEBUG
if (ccddebug & CDB_FOLLOW)
printf("ccdstart(%d)\n", unit);
if (ccddebug & CCDB_FOLLOW)
printf("ccdstart(%x, %x)\n", cs, bp);
#endif
/*
* Instumentation (not real meaningful)
@ -414,7 +490,7 @@ ccdstart(unit)
* Allocate component buffers and fire off the requests
*/
bn = bp->b_blkno;
addr = bp->b_un.b_addr;
addr = bp->b_data;
for (bcount = bp->b_bcount; bcount > 0; bcount -= rcount) {
cbp = ccdbuffer(cs, bp, bn, addr, bcount);
rcount = cbp->b_bcount;
@ -440,7 +516,7 @@ ccdbuffer(cs, bp, bn, addr, bcount)
register daddr_t cbn, cboff;
#ifdef DEBUG
if (ccddebug & CDB_IO)
if (ccddebug & CCDB_IO)
printf("ccdbuffer(%x, %x, %d, %x, %d)\n",
cs, bp, bn, addr, bcount);
#endif
@ -493,7 +569,7 @@ ccdbuffer(cs, bp, bn, addr, bcount)
cbp->b_proc = bp->b_proc;
cbp->b_dev = ci->ci_dev;
cbp->b_blkno = cbn + cboff;
cbp->b_un.b_addr = addr;
cbp->b_data = addr;
cbp->b_vp = 0;
if (cs->sc_ileave == 0)
cbp->b_bcount = dbtob(ci->ci_size - cbn);
@ -502,28 +578,27 @@ ccdbuffer(cs, bp, bn, addr, bcount)
if (cbp->b_bcount > bcount)
cbp->b_bcount = bcount;
/*
* XXX: context for ccdiodone
* XXX context for ccdiodone
*/
cbp->b_saveaddr = (caddr_t)bp;
cbp->b_pfcent = ((cs - ccd_softc) << 16) | (ci - cs->sc_cinfo);
#ifdef DEBUG
if (ccddebug & CDB_IO)
if (ccddebug & CCDB_IO)
printf(" dev %x(u%d): cbp %x bn %d addr %x bcnt %d\n",
ci->ci_dev, ci-cs->sc_cinfo, cbp, cbp->b_blkno,
cbp->b_un.b_addr, cbp->b_bcount);
cbp->b_data, cbp->b_bcount);
#endif
return(cbp);
}
ccdintr(unit)
int unit;
ccdintr(cs, bp)
register struct ccd_softc *cs;
register struct buf *bp;
{
register struct ccd_softc *cs = &ccd_softc[unit];
register struct buf *bp = cs->sc_bp;
#ifdef DEBUG
if (ccddebug & CDB_FOLLOW)
printf("ccdintr(%d): bp %x\n", unit, bp);
if (ccddebug & CCDB_FOLLOW)
printf("ccdintr(%x, %x)\n", cs, bp);
#endif
/*
* Request is done for better or worse, wakeup the top half.
@ -540,6 +615,7 @@ ccdintr(unit)
* Mark the component as done and if all components are done,
* take a ccd interrupt.
*/
void
ccdiodone(cbp)
register struct buf *cbp;
{
@ -549,14 +625,14 @@ ccdiodone(cbp)
s = splbio();
#ifdef DEBUG
if (ccddebug & CDB_FOLLOW)
if (ccddebug & CCDB_FOLLOW)
printf("ccdiodone(%x)\n", cbp);
if (ccddebug & CDB_IO) {
if (ccddebug & CCDB_IO) {
printf("ccdiodone: bp %x bcount %d resid %d\n",
bp, bp->b_bcount, bp->b_resid);
printf(" dev %x(u%d), cbp %x bn %d addr %x bcnt %d\n",
cbp->b_dev, cbp->b_pfcent & 0xFFFF, cbp,
cbp->b_blkno, cbp->b_un.b_addr, cbp->b_bcount);
cbp->b_blkno, cbp->b_data, cbp->b_bcount);
}
#endif
@ -573,24 +649,46 @@ ccdiodone(cbp)
/*
* If all done, "interrupt".
* Again, sc_bp is only used to preserve the traditional interface.
*/
bp->b_resid -= count;
if (bp->b_resid < 0)
panic("ccdiodone: count");
if (bp->b_resid == 0) {
ccd_softc[unit].sc_bp = bp;
ccdintr(unit);
}
if (bp->b_resid == 0)
ccdintr(&ccd_softc[unit], bp);
splx(s);
}
ccdioctl(dev, cmd, data, flag, p)
ccdread(dev, uio)
dev_t dev;
struct uio *uio;
{
register int unit = ccdunit(dev);
#ifdef DEBUG
if (ccddebug & CCDB_FOLLOW)
printf("ccdread(%x, %x)\n", dev, uio);
#endif
return(physio(ccdstrategy, NULL, dev, B_READ, minphys, uio));
}
ccdwrite(dev, uio)
dev_t dev;
struct uio *uio;
{
register int unit = ccdunit(dev);
#ifdef DEBUG
if (ccddebug & CCDB_FOLLOW)
printf("ccdwrite(%x, %x)\n", dev, uio);
#endif
return(physio(ccdstrategy, NULL, dev, B_WRITE, minphys, uio));
}
ccdioctl(dev, cmd, data, flag)
dev_t dev;
int cmd;
caddr_t data;
int flag;
struct proc *p;
{
return(EINVAL);
}
@ -601,7 +699,7 @@ ccdsize(dev)
int unit = ccdunit(dev);
register struct ccd_softc *cs = &ccd_softc[unit];
if (unit >= NCCD || (cs->sc_flags & CDF_INITED) == 0)
if (unit >= numccd || (cs->sc_flags & CCDF_INITED) == 0)
return(-1);
return(cs->sc_size);
}

12
sys/dev/ccdvar.h
View File

@ -1,9 +1,9 @@
/* $NetBSD: ccdvar.h,v 1.2 1994/06/29 06:31:31 cgd Exp $ */
/* $NetBSD: ccdvar.h,v 1.3 1994/07/02 06:03:49 hpeyerl Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
@ -39,7 +39,7 @@
*
* from: Utah $Hdr: cdvar.h 1.1 90/07/09$
*
* @(#)cdvar.h 7.2 (Berkeley) 11/4/90
* @(#)cdvar.h 8.1 (Berkeley) 6/10/93
*/
#define NCCDISKS 8 /* max # of component disks */
@ -56,8 +56,8 @@ struct ccddevice {
};
/* ccd_flags */
#define CDF_SWAP 0x01 /* interleave should be dmmax */
#define CDF_UNIFORM 0x02 /* use LCD of sizes for uniform interleave */
#define CCDF_SWAP 0x01 /* interleave should be dmmax */
#define CCDF_UNIFORM 0x02 /* use LCCD of sizes for uniform interleave */
/*
* Component info table.