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Add a couple of undocumented test options to MD(4) to aid in regression

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testting of GEOM.
This commit is contained in:
Poul-Henning Kamp 2003-04-09 11:59:29 +00:00
parent ce5b934709
commit 4e8bfe1482
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=113289
3 changed files with 47 additions and 24 deletions
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12
sbin/mdconfig/mdconfig.c
View File

@ -54,7 +54,7 @@ main(int argc, char **argv)
int cmdline = 0;
for (;;) {
ch = getopt(argc, argv, "ab:df:lo:s:S:t:u:");
ch = getopt(argc, argv, "ab:df:lo:s:S:t:u:x:y:");
if (ch == -1)
break;
switch (ch) {
@ -163,6 +163,16 @@ main(int argc, char **argv)
errx(1, "bad unit: %s", optarg);
mdio.md_options &= ~MD_AUTOUNIT;
break;
case 'x':
if (cmdline != 2)
usage();
mdio.md_fwsectors = strtoul(optarg, &p, 0);
break;
case 'y':
if (cmdline != 2)
usage();
mdio.md_fwheads = strtoul(optarg, &p, 0);
break;
default:
usage();
}

55
sys/dev/md/md.c
View File

@ -147,6 +147,8 @@ struct md_s {
unsigned nsect;
unsigned opencount;
unsigned secsize;
unsigned fwheads;
unsigned fwsectors;
unsigned flags;
char name[20];
struct proc *procp;
@ -366,11 +368,6 @@ g_md_start(struct bio *bp)
sc = bp->bio_to->geom->softc;
switch(bp->bio_cmd) {
case BIO_GETATTR:
g_io_deliver(bp, EOPNOTSUPP);
return;
}
bp->bio_blkno = bp->bio_offset >> DEV_BSHIFT;
bp->bio_pblkno = bp->bio_offset / sc->secsize;
bp->bio_bcount = bp->bio_length;
@ -586,23 +583,33 @@ md_kthread(void *arg)
continue;
}
mtx_unlock(&sc->queue_mtx);
switch (sc->type) {
case MD_MALLOC:
error = mdstart_malloc(sc, bp);
break;
case MD_PRELOAD:
error = mdstart_preload(sc, bp);
break;
case MD_VNODE:
error = mdstart_vnode(sc, bp);
break;
case MD_SWAP:
error = mdstart_swap(sc, bp);
break;
default:
panic("Impossible md(type)");
break;
if (bp->bio_cmd == BIO_GETATTR) {
if (sc->fwsectors && sc->fwheads &&
(g_handleattr_int(bp, "GEOM::fwsectors",
sc->fwsectors) ||
g_handleattr_int(bp, "GEOM::fwheads",
sc->fwheads)))
error = -1;
else
error = EOPNOTSUPP;
} else {
switch (sc->type) {
case MD_MALLOC:
error = mdstart_malloc(sc, bp);
break;
case MD_PRELOAD:
error = mdstart_preload(sc, bp);
break;
case MD_VNODE:
error = mdstart_vnode(sc, bp);
break;
case MD_SWAP:
error = mdstart_swap(sc, bp);
break;
default:
panic("Impossible md(type)");
break;
}
}
if (error != -1) {
@ -752,6 +759,10 @@ mdcreate_malloc(struct md_ioctl *mdio)
sc->secsize = mdio->md_secsize;
else
sc->secsize = DEV_BSIZE;
if (mdio->md_fwsectors != 0)
sc->fwsectors = mdio->md_fwsectors;
if (mdio->md_fwheads != 0)
sc->fwheads = mdio->md_fwheads;
sc->nsect = mdio->md_size;
sc->nsect /= (sc->secsize / DEV_BSIZE);
sc->flags = mdio->md_options & (MD_COMPRESS | MD_FORCE);

4
sys/sys/mdioctl.h
View File

@ -53,7 +53,7 @@ enum md_types {MD_MALLOC, MD_PRELOAD, MD_VNODE, MD_SWAP};
* Ioctl definitions for memory disk pseudo-device.
*/
#define MDNPAD 99
#define MDNPAD 97
struct md_ioctl {
unsigned md_version; /* Structure layout version */
unsigned md_unit; /* unit number */
@ -63,6 +63,8 @@ struct md_ioctl {
unsigned md_options; /* options */
u_int64_t md_base; /* base address */
int md_secsize; /* sectorsize */
int md_fwheads; /* firmware heads */
int md_fwsectors; /* firmware sectors */
int md_pad[MDNPAD]; /* padding for future ideas */
};