Kill the NCCD constant by modernizing the ccd driver.
Submitted by: sobomax Reviewed by: phk
This commit is contained in:
Poul-Henning Kamp
parent
8dc609a914
commit
01706d206f
@ -87,8 +87,6 @@
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* Moffett Field, CA 94035
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*/
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#include "ccd.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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@ -108,6 +106,8 @@
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#include <sys/ccdvar.h>
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MALLOC_DEFINE(M_CCD, "CCD driver", "Concatenated Disk driver");
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#if defined(CCDDEBUG) && !defined(DEBUG)
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#define DEBUG
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#endif
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@ -121,7 +121,6 @@
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static int ccddebug = CCDB_FOLLOW | CCDB_INIT | CCDB_IO | CCDB_LABEL |
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CCDB_VNODE;
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SYSCTL_INT(_debug, OID_AUTO, ccddebug, CTLFLAG_RW, &ccddebug, 0, "");
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#undef DEBUG
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#endif
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#define ccdunit(x) dkunit(x)
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@ -157,6 +156,10 @@ struct ccdbuf {
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#define CCDLABELDEV(dev) \
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(makedev(major((dev)), dkmakeminor(ccdunit((dev)), 0, RAW_PART)))
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/* convinient macros for often-used statements */
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#define IS_ALLOCATED(unit) (ccdfind(unit) != NULL)
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#define IS_INITED(cs) (((cs)->sc_flags & CCDF_INITED) != 0)
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static d_open_t ccdopen;
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static d_close_t ccdclose;
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static d_strategy_t ccdstrategy;
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@ -183,36 +186,38 @@ static struct cdevsw ccd_cdevsw = {
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/* psize */ ccdsize,
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/* flags */ D_DISK,
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};
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static LIST_HEAD(, ccd_s) ccd_softc_list = LIST_HEAD_INITIALIZER(&ccd_softc_list);
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static struct ccd_s *ccdfind(int);
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static struct ccd_s *ccdnew(int);
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static int ccddestroy(struct ccd_s *, struct proc *);
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/* called during module initialization */
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static void ccdattach __P((void));
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static int ccd_modevent __P((module_t, int, void *));
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static void ccdattach(void);
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static int ccd_modevent(module_t, int, void *);
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/* called by biodone() at interrupt time */
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static void ccdiodone __P((struct bio *bp));
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static void ccdiodone(struct bio *bp);
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static void ccdstart __P((struct ccd_softc *, struct bio *));
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static void ccdinterleave __P((struct ccd_softc *, int));
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static void ccdintr __P((struct ccd_softc *, struct bio *));
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static int ccdinit __P((struct ccddevice *, char **, struct proc *));
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static int ccdlookup __P((char *, struct proc *p, struct vnode **));
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static void ccdbuffer __P((struct ccdbuf **ret, struct ccd_softc *,
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struct bio *, daddr_t, caddr_t, long));
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static void ccdgetdisklabel __P((dev_t));
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static void ccdmakedisklabel __P((struct ccd_softc *));
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static int ccdlock __P((struct ccd_softc *));
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static void ccdunlock __P((struct ccd_softc *));
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static void ccdstart(struct ccd_s *, struct bio *);
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static void ccdinterleave(struct ccd_s *, int);
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static void ccdintr(struct ccd_s *, struct bio *);
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static int ccdinit(struct ccd_s *, char **, struct proc *);
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static int ccdlookup(char *, struct proc *p, struct vnode **);
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static void ccdbuffer(struct ccdbuf **ret, struct ccd_s *,
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struct bio *, daddr_t, caddr_t, long);
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static void ccdgetdisklabel(dev_t);
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static void ccdmakedisklabel(struct ccd_s *);
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static int ccdlock(struct ccd_s *);
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static void ccdunlock(struct ccd_s *);
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#ifdef DEBUG
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static void printiinfo __P((struct ccdiinfo *));
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static void printiinfo(struct ccdiinfo *);
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#endif
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/* Non-private for the benefit of libkvm. */
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struct ccd_softc *ccd_softc;
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struct ccddevice *ccddevs;
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struct ccdbuf *ccdfreebufs;
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static int numccdfreebufs;
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static int numccd = 0;
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struct ccdbuf *ccdfreebufs;
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static int numccdfreebufs;
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/*
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* getccdbuf() - Allocate and zero a ccd buffer.
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@ -281,6 +286,47 @@ putccdbuf(struct ccdbuf *cbp)
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#define CCD_OFFSET 16
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#endif
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static struct ccd_s *
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ccdfind(int unit)
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{
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struct ccd_s *sc = NULL;
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/* XXX: LOCK(unique unit numbers) */
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LIST_FOREACH(sc, &ccd_softc_list, list) {
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if (sc->sc_unit == unit)
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break;
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}
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/* XXX: UNLOCK(unique unit numbers) */
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return ((sc == NULL) || (sc->sc_unit != unit) ? NULL : sc);
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}
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static struct ccd_s *
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ccdnew(int unit)
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{
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struct ccd_s *sc;
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/* XXX: LOCK(unique unit numbers) */
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if (IS_ALLOCATED(unit) || unit > DKMAXUNIT)
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return (NULL);
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MALLOC(sc, struct ccd_s *, sizeof(*sc), M_CCD, M_WAITOK | M_ZERO);
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sc->sc_unit = unit;
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LIST_INSERT_HEAD(&ccd_softc_list, sc, list);
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/* XXX: UNLOCK(unique unit numbers) */
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return (sc);
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}
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static int
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ccddestroy(struct ccd_s *sc, struct proc *p)
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{
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/* XXX: LOCK(unique unit numbers) */
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LIST_REMOVE(sc, list);
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/* XXX: UNLOCK(unique unit numbers) */
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FREE(sc, M_CCD);
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return (0);
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}
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static void
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ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
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{
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@ -292,8 +338,6 @@ ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
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i = dev_stdclone(name, &s, "ccd", &u);
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if (i != 2)
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return;
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if (u >= numccd)
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return;
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if (*s < 'a' || *s > 'h')
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return;
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if (s[1] != '\0')
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@ -304,48 +348,17 @@ ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
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/*
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* Called by main() during pseudo-device attachment. All we need
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* to do is allocate enough space for devices to be configured later, and
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* add devsw entries.
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* to do is to add devsw entries.
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*/
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static void
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ccdattach()
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{
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int i;
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int num = NCCD;
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if (num > 1)
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printf("ccd0-%d: Concatenated disk drivers\n", num-1);
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else
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printf("ccd0: Concatenated disk driver\n");
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ccd_softc = (struct ccd_softc *)malloc(num * sizeof(struct ccd_softc),
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M_DEVBUF, M_NOWAIT);
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ccddevs = (struct ccddevice *)malloc(num * sizeof(struct ccddevice),
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M_DEVBUF, M_NOWAIT);
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if ((ccd_softc == NULL) || (ccddevs == NULL)) {
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printf("WARNING: no memory for concatenated disks\n");
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if (ccd_softc != NULL)
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free(ccd_softc, M_DEVBUF);
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if (ccddevs != NULL)
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free(ccddevs, M_DEVBUF);
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return;
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}
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numccd = num;
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bzero(ccd_softc, num * sizeof(struct ccd_softc));
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bzero(ccddevs, num * sizeof(struct ccddevice));
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cdevsw_add(&ccd_cdevsw);
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/* XXX: is this necessary? */
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for (i = 0; i < numccd; ++i)
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ccddevs[i].ccd_dk = -1;
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EVENTHANDLER_REGISTER(dev_clone, ccd_clone, 0, 1000);
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}
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static int
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ccd_modevent(mod, type, data)
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module_t mod;
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int type;
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void *data;
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ccd_modevent(module_t mod, int type, void *data)
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{
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int error = 0;
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@ -368,12 +381,8 @@ ccd_modevent(mod, type, data)
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DEV_MODULE(ccd, ccd_modevent, NULL);
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static int
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ccdinit(ccd, cpaths, p)
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struct ccddevice *ccd;
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char **cpaths;
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struct proc *p;
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ccdinit(struct ccd_s *cs, char **cpaths, struct proc *p)
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{
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struct ccd_softc *cs = &ccd_softc[ccd->ccd_unit];
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struct ccdcinfo *ci = NULL; /* XXX */
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size_t size;
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int ix;
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@ -387,12 +396,10 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccdinit: unit %d\n", ccd->ccd_unit);
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printf("ccdinit: unit %d\n", cs->sc_unit);
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#endif
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cs->sc_size = 0;
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cs->sc_ileave = ccd->ccd_interleave;
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cs->sc_nccdisks = ccd->ccd_ndev;
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/* Allocate space for the component info. */
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cs->sc_cinfo = malloc(cs->sc_nccdisks * sizeof(struct ccdcinfo),
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@ -405,7 +412,7 @@ ccdinit(ccd, cpaths, p)
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maxsecsize = 0;
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minsize = 0;
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for (ix = 0; ix < cs->sc_nccdisks; ix++) {
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vp = ccd->ccd_vpp[ix];
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vp = cs->sc_vpp[ix];
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ci = &cs->sc_cinfo[ix];
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ci->ci_vp = vp;
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@ -418,7 +425,7 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccd%d: can't copy path, error = %d\n",
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ccd->ccd_unit, error);
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cs->sc_unit, error);
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#endif
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goto fail;
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}
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@ -435,7 +442,7 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccd%d: %s: ioctl failed, error = %d\n",
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ccd->ccd_unit, ci->ci_path, error);
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cs->sc_unit, ci->ci_path, error);
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#endif
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goto fail;
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}
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@ -448,7 +455,7 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccd%d: %s: incorrect partition type\n",
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ccd->ccd_unit, ci->ci_path);
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cs->sc_unit, ci->ci_path);
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#endif
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error = EFTYPE;
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goto fail;
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@ -466,7 +473,7 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccd%d: %s: size == 0\n",
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ccd->ccd_unit, ci->ci_path);
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cs->sc_unit, ci->ci_path);
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#endif
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error = ENODEV;
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goto fail;
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@ -487,7 +494,7 @@ ccdinit(ccd, cpaths, p)
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#ifdef DEBUG
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if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
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printf("ccd%d: interleave must be at least %d\n",
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ccd->ccd_unit, (maxsecsize / DEV_BSIZE));
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cs->sc_unit, (maxsecsize / DEV_BSIZE));
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#endif
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error = EINVAL;
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goto fail;
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@ -502,12 +509,12 @@ ccdinit(ccd, cpaths, p)
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* overall size. Half the space is lost when CCDF_MIRROR is
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* specified. One disk is lost when CCDF_PARITY is specified.
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*/
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if (ccd->ccd_flags & CCDF_UNIFORM) {
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if (cs->sc_flags & CCDF_UNIFORM) {
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for (ci = cs->sc_cinfo;
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ci < &cs->sc_cinfo[cs->sc_nccdisks]; ci++) {
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ci->ci_size = minsize;
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}
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if (ccd->ccd_flags & CCDF_MIRROR) {
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if (cs->sc_flags & CCDF_MIRROR) {
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/*
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* Check to see if an even number of components
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* have been specified. The interleave must also
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@ -515,21 +522,21 @@ ccdinit(ccd, cpaths, p)
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* guarentee the topology.
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*/
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if (cs->sc_nccdisks % 2) {
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printf("ccd%d: mirroring requires an even number of disks\n", ccd->ccd_unit );
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printf("ccd%d: mirroring requires an even number of disks\n", cs->sc_unit );
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error = EINVAL;
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goto fail;
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}
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if (cs->sc_ileave == 0) {
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printf("ccd%d: an interleave must be specified when mirroring\n", ccd->ccd_unit);
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printf("ccd%d: an interleave must be specified when mirroring\n", cs->sc_unit);
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error = EINVAL;
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goto fail;
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}
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cs->sc_size = (cs->sc_nccdisks/2) * minsize;
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} else if (ccd->ccd_flags & CCDF_PARITY) {
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} else if (cs->sc_flags & CCDF_PARITY) {
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cs->sc_size = (cs->sc_nccdisks-1) * minsize;
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} else {
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if (cs->sc_ileave == 0) {
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printf("ccd%d: an interleave must be specified when using parity\n", ccd->ccd_unit);
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printf("ccd%d: an interleave must be specified when using parity\n", cs->sc_unit);
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error = EINVAL;
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goto fail;
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}
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@ -540,7 +547,7 @@ ccdinit(ccd, cpaths, p)
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/*
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* Construct the interleave table.
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*/
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ccdinterleave(cs, ccd->ccd_unit);
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ccdinterleave(cs, cs->sc_unit);
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/*
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* Create pseudo-geometry based on 1MB cylinders. It's
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@ -554,14 +561,13 @@ ccdinit(ccd, cpaths, p)
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/*
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* Add an devstat entry for this device.
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*/
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devstat_add_entry(&cs->device_stats, "ccd", ccd->ccd_unit,
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devstat_add_entry(&cs->device_stats, "ccd", cs->sc_unit,
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ccg->ccg_secsize, DEVSTAT_ALL_SUPPORTED,
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DEVSTAT_TYPE_STORARRAY |DEVSTAT_TYPE_IF_OTHER,
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DEVSTAT_PRIORITY_ARRAY);
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cs->sc_flags |= CCDF_INITED;
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cs->sc_cflags = ccd->ccd_flags; /* So we can find out later... */
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cs->sc_unit = ccd->ccd_unit;
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cs->sc_cflags = cs->sc_flags; /* So we can find out later... */
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return (0);
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fail:
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while (ci > cs->sc_cinfo) {
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@ -573,9 +579,7 @@ ccdinit(ccd, cpaths, p)
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}
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static void
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ccdinterleave(cs, unit)
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struct ccd_softc *cs;
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int unit;
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ccdinterleave(struct ccd_s *cs, int unit)
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{
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struct ccdcinfo *ci, *smallci;
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struct ccdiinfo *ii;
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@ -697,13 +701,10 @@ ccdinterleave(cs, unit)
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/* ARGSUSED */
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static int
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ccdopen(dev, flags, fmt, p)
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dev_t dev;
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int flags, fmt;
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struct proc *p;
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ccdopen(dev_t dev, int flags, int fmt, struct proc *p)
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{
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int unit = ccdunit(dev);
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struct ccd_softc *cs;
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struct ccd_s *cs;
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struct disklabel *lp;
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int error = 0, part, pmask;
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@ -711,9 +712,8 @@ ccdopen(dev, flags, fmt, p)
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if (ccddebug & CCDB_FOLLOW)
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printf("ccdopen(%p, %x)\n", dev, flags);
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#endif
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if (unit >= numccd)
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return (ENXIO);
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cs = &ccd_softc[unit];
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cs = IS_ALLOCATED(unit) ? ccdfind(unit) : ccdnew(unit);
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if ((error = ccdlock(cs)) != 0)
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return (error);
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@ -728,7 +728,7 @@ ccdopen(dev, flags, fmt, p)
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* open partitions. If not, then it's safe to update
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* the in-core disklabel.
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*/
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if ((cs->sc_flags & CCDF_INITED) && (cs->sc_openmask == 0))
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if (IS_INITED(cs) && (cs->sc_openmask == 0))
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ccdgetdisklabel(dev);
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/* Check that the partition exists. */
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@ -746,13 +746,10 @@ ccdopen(dev, flags, fmt, p)
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/* ARGSUSED */
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static int
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ccdclose(dev, flags, fmt, p)
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dev_t dev;
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int flags, fmt;
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struct proc *p;
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ccdclose(dev_t dev, int flags, int fmt, struct proc *p)
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{
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int unit = ccdunit(dev);
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struct ccd_softc *cs;
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struct ccd_s *cs;
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int error = 0, part;
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#ifdef DEBUG
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@ -760,9 +757,9 @@ ccdclose(dev, flags, fmt, p)
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printf("ccdclose(%p, %x)\n", dev, flags);
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#endif
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if (unit >= numccd)
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if (!IS_ALLOCATED(unit))
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return (ENXIO);
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cs = &ccd_softc[unit];
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cs = ccdfind(unit);
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if ((error = ccdlock(cs)) != 0)
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return (error);
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@ -771,16 +768,19 @@ ccdclose(dev, flags, fmt, p)
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||||
/* ...that much closer to allowing unconfiguration... */
|
||||
cs->sc_openmask &= ~(1 << part);
|
||||
ccdunlock(cs);
|
||||
/* collect "garbage" if possible */
|
||||
if (!IS_INITED(cs) && (cs->sc_flags & CCDF_WANTED) == 0)
|
||||
ccddestroy(cs, p);
|
||||
else
|
||||
ccdunlock(cs);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
ccdstrategy(bp)
|
||||
struct bio *bp;
|
||||
ccdstrategy(struct bio *bp)
|
||||
{
|
||||
int unit = ccdunit(bp->bio_dev);
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
int s;
|
||||
int wlabel;
|
||||
struct disklabel *lp;
|
||||
@ -789,7 +789,7 @@ ccdstrategy(bp)
|
||||
if (ccddebug & CCDB_FOLLOW)
|
||||
printf("ccdstrategy(%p): unit %d\n", bp, unit);
|
||||
#endif
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0) {
|
||||
if (!IS_INITED(cs)) {
|
||||
biofinish(bp, NULL, ENXIO);
|
||||
return;
|
||||
}
|
||||
@ -854,9 +854,7 @@ ccdstrategy(bp)
|
||||
}
|
||||
|
||||
static void
|
||||
ccdstart(cs, bp)
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
ccdstart(struct ccd_s *cs, struct bio *bp)
|
||||
{
|
||||
long bcount, rcount;
|
||||
struct ccdbuf *cbp[4];
|
||||
@ -930,13 +928,7 @@ ccdstart(cs, bp)
|
||||
* Build a component buffer header.
|
||||
*/
|
||||
static void
|
||||
ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
struct ccdbuf **cb;
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
daddr_t bn;
|
||||
caddr_t addr;
|
||||
long bcount;
|
||||
ccdbuffer(struct ccdbuf **cb, struct ccd_s *cs, struct bio *bp, daddr_t bn, caddr_t addr, long bcount)
|
||||
{
|
||||
struct ccdcinfo *ci, *ci2 = NULL; /* XXX */
|
||||
struct ccdbuf *cbp;
|
||||
@ -1073,7 +1065,7 @@ ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
* context for ccdiodone
|
||||
*/
|
||||
cbp->cb_obp = bp;
|
||||
cbp->cb_unit = cs - ccd_softc;
|
||||
cbp->cb_unit = cs->sc_unit;
|
||||
cbp->cb_comp = ci - cs->sc_cinfo;
|
||||
|
||||
#ifdef DEBUG
|
||||
@ -1104,9 +1096,7 @@ ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
}
|
||||
|
||||
static void
|
||||
ccdintr(cs, bp)
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
ccdintr(struct ccd_s *cs, struct bio *bp)
|
||||
{
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & CCDB_FOLLOW)
|
||||
@ -1126,8 +1116,7 @@ ccdintr(cs, bp)
|
||||
* take a ccd interrupt.
|
||||
*/
|
||||
static void
|
||||
ccdiodone(ibp)
|
||||
struct bio *ibp;
|
||||
ccdiodone(struct bio *ibp)
|
||||
{
|
||||
struct ccdbuf *cbp = (struct ccdbuf *)ibp;
|
||||
struct bio *bp = cbp->cb_obp;
|
||||
@ -1157,7 +1146,7 @@ ccdiodone(ibp)
|
||||
if (cbp->cb_buf.bio_flags & BIO_ERROR) {
|
||||
const char *msg = "";
|
||||
|
||||
if ((ccd_softc[unit].sc_cflags & CCDF_MIRROR) &&
|
||||
if ((ccdfind(unit)->sc_cflags & CCDF_MIRROR) &&
|
||||
(cbp->cb_buf.bio_cmd == BIO_READ) &&
|
||||
(cbp->cb_pflags & CCDPF_MIRROR_DONE) == 0) {
|
||||
/*
|
||||
@ -1166,7 +1155,7 @@ ccdiodone(ibp)
|
||||
* are doing a scan we do not keep hitting the
|
||||
* bad disk first.
|
||||
*/
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
|
||||
msg = ", trying other disk";
|
||||
cs->sc_pick = 1 - cs->sc_pick;
|
||||
@ -1190,7 +1179,7 @@ ccdiodone(ibp)
|
||||
* we free the second I/O without initiating it.
|
||||
*/
|
||||
|
||||
if (ccd_softc[unit].sc_cflags & CCDF_MIRROR) {
|
||||
if (ccdfind(unit)->sc_cflags & CCDF_MIRROR) {
|
||||
if (cbp->cb_buf.bio_cmd == BIO_WRITE) {
|
||||
/*
|
||||
* When writing, handshake with the second buffer
|
||||
@ -1244,36 +1233,28 @@ ccdiodone(ibp)
|
||||
if (bp->bio_resid < 0)
|
||||
panic("ccdiodone: count");
|
||||
if (bp->bio_resid == 0)
|
||||
ccdintr(&ccd_softc[unit], bp);
|
||||
ccdintr(ccdfind(unit), bp);
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static int
|
||||
ccdioctl(dev, cmd, data, flag, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flag;
|
||||
struct proc *p;
|
||||
ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
int i, j, lookedup = 0, error = 0;
|
||||
int part, pmask, s;
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
struct ccd_ioctl *ccio = (struct ccd_ioctl *)data;
|
||||
struct ccddevice ccd;
|
||||
char **cpp;
|
||||
struct vnode **vpp;
|
||||
|
||||
if (unit >= numccd)
|
||||
if (!IS_ALLOCATED(unit))
|
||||
return (ENXIO);
|
||||
cs = &ccd_softc[unit];
|
||||
|
||||
bzero(&ccd, sizeof(ccd));
|
||||
cs = ccdfind(unit);
|
||||
|
||||
switch (cmd) {
|
||||
case CCDIOCSET:
|
||||
if (cs->sc_flags & CCDF_INITED)
|
||||
if (IS_INITED(cs))
|
||||
return (EBUSY);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1283,9 +1264,8 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
return (error);
|
||||
|
||||
/* Fill in some important bits. */
|
||||
ccd.ccd_unit = unit;
|
||||
ccd.ccd_interleave = ccio->ccio_ileave;
|
||||
if (ccd.ccd_interleave == 0 &&
|
||||
cs->sc_ileave = ccio->ccio_ileave;
|
||||
if (cs->sc_ileave == 0 &&
|
||||
((ccio->ccio_flags & CCDF_MIRROR) ||
|
||||
(ccio->ccio_flags & CCDF_PARITY))) {
|
||||
printf("ccd%d: disabling mirror/parity, interleave is 0\n", unit);
|
||||
@ -1302,7 +1282,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
unit);
|
||||
ccio->ccio_flags |= CCDF_UNIFORM;
|
||||
}
|
||||
ccd.ccd_flags = ccio->ccio_flags & CCDF_USERMASK;
|
||||
cs->sc_flags = ccio->ccio_flags & CCDF_USERMASK;
|
||||
|
||||
/*
|
||||
* Allocate space for and copy in the array of
|
||||
@ -1345,18 +1325,24 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
}
|
||||
++lookedup;
|
||||
}
|
||||
ccd.ccd_cpp = cpp;
|
||||
ccd.ccd_vpp = vpp;
|
||||
ccd.ccd_ndev = ccio->ccio_ndisks;
|
||||
cs->sc_vpp = vpp;
|
||||
cs->sc_nccdisks = ccio->ccio_ndisks;
|
||||
|
||||
/*
|
||||
* Initialize the ccd. Fills in the softc for us.
|
||||
*/
|
||||
if ((error = ccdinit(&ccd, cpp, p)) != 0) {
|
||||
if ((error = ccdinit(cs, cpp, p)) != 0) {
|
||||
for (j = 0; j < lookedup; ++j)
|
||||
(void)vn_close(vpp[j], FREAD|FWRITE,
|
||||
p->p_ucred, p);
|
||||
bzero(&ccd_softc[unit], sizeof(struct ccd_softc));
|
||||
/*
|
||||
* We can't ccddestroy() cs just yet, because nothing
|
||||
* prevents user-level app to do another ioctl()
|
||||
* without closing the device first, therefore
|
||||
* declare unit null and void and let ccdclose()
|
||||
* destroy it when it is safe to do so.
|
||||
*/
|
||||
cs->sc_flags &= (CCDF_WANTED | CCDF_LOCKED);
|
||||
free(vpp, M_DEVBUF);
|
||||
free(cpp, M_DEVBUF);
|
||||
ccdunlock(cs);
|
||||
@ -1367,7 +1353,6 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
* The ccd has been successfully initialized, so
|
||||
* we can place it into the array and read the disklabel.
|
||||
*/
|
||||
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
|
||||
ccio->ccio_unit = unit;
|
||||
ccio->ccio_size = cs->sc_size;
|
||||
ccdgetdisklabel(dev);
|
||||
@ -1377,7 +1362,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
break;
|
||||
|
||||
case CCDIOCCLR:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1394,9 +1379,8 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
return (EBUSY);
|
||||
}
|
||||
|
||||
/*
|
||||
* Free ccd_softc information and clear entry.
|
||||
*/
|
||||
/* Declare unit null and void (reset all flags) */
|
||||
cs->sc_flags &= (CCDF_WANTED | CCDF_LOCKED);
|
||||
|
||||
/* Close the components and free their pathnames. */
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i) {
|
||||
@ -1422,38 +1406,93 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
/* Free component info and interleave table. */
|
||||
free(cs->sc_cinfo, M_DEVBUF);
|
||||
free(cs->sc_itable, M_DEVBUF);
|
||||
cs->sc_flags &= ~CCDF_INITED;
|
||||
free(cs->sc_vpp, M_DEVBUF);
|
||||
|
||||
/*
|
||||
* Free ccddevice information and clear entry.
|
||||
*/
|
||||
free(ccddevs[unit].ccd_cpp, M_DEVBUF);
|
||||
free(ccddevs[unit].ccd_vpp, M_DEVBUF);
|
||||
ccd.ccd_dk = -1;
|
||||
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
|
||||
|
||||
/*
|
||||
* And remove the devstat entry.
|
||||
*/
|
||||
/* And remove the devstat entry. */
|
||||
devstat_remove_entry(&cs->device_stats);
|
||||
|
||||
/* This must be atomic. */
|
||||
s = splhigh();
|
||||
ccdunlock(cs);
|
||||
bzero(cs, sizeof(struct ccd_softc));
|
||||
splx(s);
|
||||
|
||||
break;
|
||||
|
||||
case CCDCONFINFO:
|
||||
{
|
||||
int ninit = 0;
|
||||
struct ccdconf *conf = (struct ccdconf *)data;
|
||||
struct ccd_s *tmpcs;
|
||||
struct ccd_s *ubuf = conf->buffer;
|
||||
|
||||
/* XXX: LOCK(unique unit numbers) */
|
||||
LIST_FOREACH(tmpcs, &ccd_softc_list, list)
|
||||
if (IS_INITED(tmpcs))
|
||||
ninit++;
|
||||
|
||||
if (conf->size == 0) {
|
||||
conf->size = sizeof(struct ccd_s) * ninit;
|
||||
break;
|
||||
} else if ((conf->size / sizeof(struct ccd_s) != ninit) ||
|
||||
(conf->size % sizeof(struct ccd_s) != 0)) {
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
ubuf += ninit;
|
||||
LIST_FOREACH(tmpcs, &ccd_softc_list, list) {
|
||||
if (!IS_INITED(tmpcs))
|
||||
continue;
|
||||
error = copyout(tmpcs, --ubuf,
|
||||
sizeof(struct ccd_s));
|
||||
if (error != 0)
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return (error);
|
||||
}
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
}
|
||||
break;
|
||||
|
||||
case CCDCPPINFO:
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
{
|
||||
int len = 0;
|
||||
struct ccdcpps *cpps = (struct ccdcpps *)data;
|
||||
char *ubuf = cpps->buffer;
|
||||
|
||||
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i)
|
||||
len += cs->sc_cinfo[i].ci_pathlen;
|
||||
|
||||
if (cpps->size == 0) {
|
||||
cpps->size = len;
|
||||
break;
|
||||
} else if (cpps->size != len) {
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i) {
|
||||
len = cs->sc_cinfo[i].ci_pathlen;
|
||||
error = copyout(cs->sc_cinfo[i].ci_path, ubuf,
|
||||
len);
|
||||
if (error != 0)
|
||||
return (error);
|
||||
ubuf += len;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case DIOCGDINFO:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
*(struct disklabel *)data = cs->sc_label;
|
||||
break;
|
||||
|
||||
case DIOCGPART:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
((struct partinfo *)data)->disklab = &cs->sc_label;
|
||||
@ -1463,7 +1502,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
|
||||
case DIOCWDINFO:
|
||||
case DIOCSDINFO:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1491,7 +1530,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
break;
|
||||
|
||||
case DIOCWLABEL:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1510,19 +1549,18 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
}
|
||||
|
||||
static int
|
||||
ccdsize(dev)
|
||||
dev_t dev;
|
||||
ccdsize(dev_t dev)
|
||||
{
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
int part, size;
|
||||
|
||||
if (ccdopen(dev, 0, S_IFCHR, curproc))
|
||||
return (-1);
|
||||
|
||||
cs = &ccd_softc[ccdunit(dev)];
|
||||
cs = ccdfind(ccdunit(dev));
|
||||
part = ccdpart(dev);
|
||||
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (-1);
|
||||
|
||||
if (cs->sc_label.d_partitions[part].p_fstype != FS_SWAP)
|
||||
@ -1537,8 +1575,7 @@ ccdsize(dev)
|
||||
}
|
||||
|
||||
static int
|
||||
ccddump(dev)
|
||||
dev_t dev;
|
||||
ccddump(dev_t dev)
|
||||
{
|
||||
|
||||
/* Not implemented. */
|
||||
@ -1551,10 +1588,7 @@ ccddump(dev)
|
||||
* set *vpp to the file's vnode.
|
||||
*/
|
||||
static int
|
||||
ccdlookup(path, p, vpp)
|
||||
char *path;
|
||||
struct proc *p;
|
||||
struct vnode **vpp; /* result */
|
||||
ccdlookup(char *path, struct proc *p, struct vnode **vpp)
|
||||
{
|
||||
struct nameidata nd;
|
||||
struct vnode *vp;
|
||||
@ -1564,7 +1598,7 @@ ccdlookup(path, p, vpp)
|
||||
flags = FREAD | FWRITE;
|
||||
if ((error = vn_open(&nd, &flags, 0)) != 0) {
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & CCDB_FOLLOW|CCDB_INIT)
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccdlookup: vn_open error = %d\n", error);
|
||||
#endif
|
||||
return (error);
|
||||
@ -1601,11 +1635,10 @@ ccdlookup(path, p, vpp)
|
||||
* up.
|
||||
*/
|
||||
static void
|
||||
ccdgetdisklabel(dev)
|
||||
dev_t dev;
|
||||
ccdgetdisklabel(dev_t dev)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
char *errstring;
|
||||
struct disklabel *lp = &cs->sc_label;
|
||||
struct ccdgeom *ccg = &cs->sc_geom;
|
||||
@ -1658,8 +1691,7 @@ ccdgetdisklabel(dev)
|
||||
* that a disklabel isn't present.
|
||||
*/
|
||||
static void
|
||||
ccdmakedisklabel(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdmakedisklabel(struct ccd_s *cs)
|
||||
{
|
||||
struct disklabel *lp = &cs->sc_label;
|
||||
|
||||
@ -1679,8 +1711,7 @@ ccdmakedisklabel(cs)
|
||||
* Several drivers do this; it should be abstracted and made MP-safe.
|
||||
*/
|
||||
static int
|
||||
ccdlock(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdlock(struct ccd_s *cs)
|
||||
{
|
||||
int error;
|
||||
|
||||
@ -1697,8 +1728,7 @@ ccdlock(cs)
|
||||
* Unlock and wake up any waiters.
|
||||
*/
|
||||
static void
|
||||
ccdunlock(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdunlock(struct ccd_s *cs)
|
||||
{
|
||||
|
||||
cs->sc_flags &= ~CCDF_LOCKED;
|
||||
@ -1710,8 +1740,7 @@ ccdunlock(cs)
|
||||
|
||||
#ifdef DEBUG
|
||||
static void
|
||||
printiinfo(ii)
|
||||
struct ccdiinfo *ii;
|
||||
printiinfo(struct ccdiinfo *ii)
|
||||
{
|
||||
int ix, i;
|
||||
|
||||
|
||||
@ -87,8 +87,6 @@
|
||||
* Moffett Field, CA 94035
|
||||
*/
|
||||
|
||||
#include "ccd.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
@ -108,6 +106,8 @@
|
||||
|
||||
#include <sys/ccdvar.h>
|
||||
|
||||
MALLOC_DEFINE(M_CCD, "CCD driver", "Concatenated Disk driver");
|
||||
|
||||
#if defined(CCDDEBUG) && !defined(DEBUG)
|
||||
#define DEBUG
|
||||
#endif
|
||||
@ -121,7 +121,6 @@
|
||||
static int ccddebug = CCDB_FOLLOW | CCDB_INIT | CCDB_IO | CCDB_LABEL |
|
||||
CCDB_VNODE;
|
||||
SYSCTL_INT(_debug, OID_AUTO, ccddebug, CTLFLAG_RW, &ccddebug, 0, "");
|
||||
#undef DEBUG
|
||||
#endif
|
||||
|
||||
#define ccdunit(x) dkunit(x)
|
||||
@ -157,6 +156,10 @@ struct ccdbuf {
|
||||
#define CCDLABELDEV(dev) \
|
||||
(makedev(major((dev)), dkmakeminor(ccdunit((dev)), 0, RAW_PART)))
|
||||
|
||||
/* convinient macros for often-used statements */
|
||||
#define IS_ALLOCATED(unit) (ccdfind(unit) != NULL)
|
||||
#define IS_INITED(cs) (((cs)->sc_flags & CCDF_INITED) != 0)
|
||||
|
||||
static d_open_t ccdopen;
|
||||
static d_close_t ccdclose;
|
||||
static d_strategy_t ccdstrategy;
|
||||
@ -183,36 +186,38 @@ static struct cdevsw ccd_cdevsw = {
|
||||
/* psize */ ccdsize,
|
||||
/* flags */ D_DISK,
|
||||
};
|
||||
static LIST_HEAD(, ccd_s) ccd_softc_list = LIST_HEAD_INITIALIZER(&ccd_softc_list);
|
||||
|
||||
static struct ccd_s *ccdfind(int);
|
||||
static struct ccd_s *ccdnew(int);
|
||||
static int ccddestroy(struct ccd_s *, struct proc *);
|
||||
|
||||
/* called during module initialization */
|
||||
static void ccdattach __P((void));
|
||||
static int ccd_modevent __P((module_t, int, void *));
|
||||
static void ccdattach(void);
|
||||
static int ccd_modevent(module_t, int, void *);
|
||||
|
||||
/* called by biodone() at interrupt time */
|
||||
static void ccdiodone __P((struct bio *bp));
|
||||
static void ccdiodone(struct bio *bp);
|
||||
|
||||
static void ccdstart __P((struct ccd_softc *, struct bio *));
|
||||
static void ccdinterleave __P((struct ccd_softc *, int));
|
||||
static void ccdintr __P((struct ccd_softc *, struct bio *));
|
||||
static int ccdinit __P((struct ccddevice *, char **, struct proc *));
|
||||
static int ccdlookup __P((char *, struct proc *p, struct vnode **));
|
||||
static void ccdbuffer __P((struct ccdbuf **ret, struct ccd_softc *,
|
||||
struct bio *, daddr_t, caddr_t, long));
|
||||
static void ccdgetdisklabel __P((dev_t));
|
||||
static void ccdmakedisklabel __P((struct ccd_softc *));
|
||||
static int ccdlock __P((struct ccd_softc *));
|
||||
static void ccdunlock __P((struct ccd_softc *));
|
||||
static void ccdstart(struct ccd_s *, struct bio *);
|
||||
static void ccdinterleave(struct ccd_s *, int);
|
||||
static void ccdintr(struct ccd_s *, struct bio *);
|
||||
static int ccdinit(struct ccd_s *, char **, struct proc *);
|
||||
static int ccdlookup(char *, struct proc *p, struct vnode **);
|
||||
static void ccdbuffer(struct ccdbuf **ret, struct ccd_s *,
|
||||
struct bio *, daddr_t, caddr_t, long);
|
||||
static void ccdgetdisklabel(dev_t);
|
||||
static void ccdmakedisklabel(struct ccd_s *);
|
||||
static int ccdlock(struct ccd_s *);
|
||||
static void ccdunlock(struct ccd_s *);
|
||||
|
||||
#ifdef DEBUG
|
||||
static void printiinfo __P((struct ccdiinfo *));
|
||||
static void printiinfo(struct ccdiinfo *);
|
||||
#endif
|
||||
|
||||
/* Non-private for the benefit of libkvm. */
|
||||
struct ccd_softc *ccd_softc;
|
||||
struct ccddevice *ccddevs;
|
||||
struct ccdbuf *ccdfreebufs;
|
||||
static int numccdfreebufs;
|
||||
static int numccd = 0;
|
||||
struct ccdbuf *ccdfreebufs;
|
||||
static int numccdfreebufs;
|
||||
|
||||
/*
|
||||
* getccdbuf() - Allocate and zero a ccd buffer.
|
||||
@ -281,6 +286,47 @@ putccdbuf(struct ccdbuf *cbp)
|
||||
#define CCD_OFFSET 16
|
||||
#endif
|
||||
|
||||
static struct ccd_s *
|
||||
ccdfind(int unit)
|
||||
{
|
||||
struct ccd_s *sc = NULL;
|
||||
|
||||
/* XXX: LOCK(unique unit numbers) */
|
||||
LIST_FOREACH(sc, &ccd_softc_list, list) {
|
||||
if (sc->sc_unit == unit)
|
||||
break;
|
||||
}
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return ((sc == NULL) || (sc->sc_unit != unit) ? NULL : sc);
|
||||
}
|
||||
|
||||
static struct ccd_s *
|
||||
ccdnew(int unit)
|
||||
{
|
||||
struct ccd_s *sc;
|
||||
|
||||
/* XXX: LOCK(unique unit numbers) */
|
||||
if (IS_ALLOCATED(unit) || unit > DKMAXUNIT)
|
||||
return (NULL);
|
||||
|
||||
MALLOC(sc, struct ccd_s *, sizeof(*sc), M_CCD, M_WAITOK | M_ZERO);
|
||||
sc->sc_unit = unit;
|
||||
LIST_INSERT_HEAD(&ccd_softc_list, sc, list);
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return (sc);
|
||||
}
|
||||
|
||||
static int
|
||||
ccddestroy(struct ccd_s *sc, struct proc *p)
|
||||
{
|
||||
|
||||
/* XXX: LOCK(unique unit numbers) */
|
||||
LIST_REMOVE(sc, list);
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
FREE(sc, M_CCD);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
|
||||
{
|
||||
@ -292,8 +338,6 @@ ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
|
||||
i = dev_stdclone(name, &s, "ccd", &u);
|
||||
if (i != 2)
|
||||
return;
|
||||
if (u >= numccd)
|
||||
return;
|
||||
if (*s < 'a' || *s > 'h')
|
||||
return;
|
||||
if (s[1] != '\0')
|
||||
@ -304,48 +348,17 @@ ccd_clone(void *arg, char *name, int namelen, dev_t *dev)
|
||||
|
||||
/*
|
||||
* Called by main() during pseudo-device attachment. All we need
|
||||
* to do is allocate enough space for devices to be configured later, and
|
||||
* add devsw entries.
|
||||
* to do is to add devsw entries.
|
||||
*/
|
||||
static void
|
||||
ccdattach()
|
||||
{
|
||||
int i;
|
||||
int num = NCCD;
|
||||
|
||||
if (num > 1)
|
||||
printf("ccd0-%d: Concatenated disk drivers\n", num-1);
|
||||
else
|
||||
printf("ccd0: Concatenated disk driver\n");
|
||||
|
||||
ccd_softc = (struct ccd_softc *)malloc(num * sizeof(struct ccd_softc),
|
||||
M_DEVBUF, M_NOWAIT);
|
||||
ccddevs = (struct ccddevice *)malloc(num * sizeof(struct ccddevice),
|
||||
M_DEVBUF, M_NOWAIT);
|
||||
if ((ccd_softc == NULL) || (ccddevs == NULL)) {
|
||||
printf("WARNING: no memory for concatenated disks\n");
|
||||
if (ccd_softc != NULL)
|
||||
free(ccd_softc, M_DEVBUF);
|
||||
if (ccddevs != NULL)
|
||||
free(ccddevs, M_DEVBUF);
|
||||
return;
|
||||
}
|
||||
numccd = num;
|
||||
bzero(ccd_softc, num * sizeof(struct ccd_softc));
|
||||
bzero(ccddevs, num * sizeof(struct ccddevice));
|
||||
|
||||
cdevsw_add(&ccd_cdevsw);
|
||||
/* XXX: is this necessary? */
|
||||
for (i = 0; i < numccd; ++i)
|
||||
ccddevs[i].ccd_dk = -1;
|
||||
EVENTHANDLER_REGISTER(dev_clone, ccd_clone, 0, 1000);
|
||||
}
|
||||
|
||||
static int
|
||||
ccd_modevent(mod, type, data)
|
||||
module_t mod;
|
||||
int type;
|
||||
void *data;
|
||||
ccd_modevent(module_t mod, int type, void *data)
|
||||
{
|
||||
int error = 0;
|
||||
|
||||
@ -368,12 +381,8 @@ ccd_modevent(mod, type, data)
|
||||
DEV_MODULE(ccd, ccd_modevent, NULL);
|
||||
|
||||
static int
|
||||
ccdinit(ccd, cpaths, p)
|
||||
struct ccddevice *ccd;
|
||||
char **cpaths;
|
||||
struct proc *p;
|
||||
ccdinit(struct ccd_s *cs, char **cpaths, struct proc *p)
|
||||
{
|
||||
struct ccd_softc *cs = &ccd_softc[ccd->ccd_unit];
|
||||
struct ccdcinfo *ci = NULL; /* XXX */
|
||||
size_t size;
|
||||
int ix;
|
||||
@ -387,12 +396,10 @@ ccdinit(ccd, cpaths, p)
|
||||
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccdinit: unit %d\n", ccd->ccd_unit);
|
||||
printf("ccdinit: unit %d\n", cs->sc_unit);
|
||||
#endif
|
||||
|
||||
cs->sc_size = 0;
|
||||
cs->sc_ileave = ccd->ccd_interleave;
|
||||
cs->sc_nccdisks = ccd->ccd_ndev;
|
||||
|
||||
/* Allocate space for the component info. */
|
||||
cs->sc_cinfo = malloc(cs->sc_nccdisks * sizeof(struct ccdcinfo),
|
||||
@ -405,7 +412,7 @@ ccdinit(ccd, cpaths, p)
|
||||
maxsecsize = 0;
|
||||
minsize = 0;
|
||||
for (ix = 0; ix < cs->sc_nccdisks; ix++) {
|
||||
vp = ccd->ccd_vpp[ix];
|
||||
vp = cs->sc_vpp[ix];
|
||||
ci = &cs->sc_cinfo[ix];
|
||||
ci->ci_vp = vp;
|
||||
|
||||
@ -418,7 +425,7 @@ ccdinit(ccd, cpaths, p)
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccd%d: can't copy path, error = %d\n",
|
||||
ccd->ccd_unit, error);
|
||||
cs->sc_unit, error);
|
||||
#endif
|
||||
goto fail;
|
||||
}
|
||||
@ -435,7 +442,7 @@ ccdinit(ccd, cpaths, p)
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccd%d: %s: ioctl failed, error = %d\n",
|
||||
ccd->ccd_unit, ci->ci_path, error);
|
||||
cs->sc_unit, ci->ci_path, error);
|
||||
#endif
|
||||
goto fail;
|
||||
}
|
||||
@ -448,7 +455,7 @@ ccdinit(ccd, cpaths, p)
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccd%d: %s: incorrect partition type\n",
|
||||
ccd->ccd_unit, ci->ci_path);
|
||||
cs->sc_unit, ci->ci_path);
|
||||
#endif
|
||||
error = EFTYPE;
|
||||
goto fail;
|
||||
@ -466,7 +473,7 @@ ccdinit(ccd, cpaths, p)
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccd%d: %s: size == 0\n",
|
||||
ccd->ccd_unit, ci->ci_path);
|
||||
cs->sc_unit, ci->ci_path);
|
||||
#endif
|
||||
error = ENODEV;
|
||||
goto fail;
|
||||
@ -487,7 +494,7 @@ ccdinit(ccd, cpaths, p)
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccd%d: interleave must be at least %d\n",
|
||||
ccd->ccd_unit, (maxsecsize / DEV_BSIZE));
|
||||
cs->sc_unit, (maxsecsize / DEV_BSIZE));
|
||||
#endif
|
||||
error = EINVAL;
|
||||
goto fail;
|
||||
@ -502,12 +509,12 @@ ccdinit(ccd, cpaths, p)
|
||||
* overall size. Half the space is lost when CCDF_MIRROR is
|
||||
* specified. One disk is lost when CCDF_PARITY is specified.
|
||||
*/
|
||||
if (ccd->ccd_flags & CCDF_UNIFORM) {
|
||||
if (cs->sc_flags & CCDF_UNIFORM) {
|
||||
for (ci = cs->sc_cinfo;
|
||||
ci < &cs->sc_cinfo[cs->sc_nccdisks]; ci++) {
|
||||
ci->ci_size = minsize;
|
||||
}
|
||||
if (ccd->ccd_flags & CCDF_MIRROR) {
|
||||
if (cs->sc_flags & CCDF_MIRROR) {
|
||||
/*
|
||||
* Check to see if an even number of components
|
||||
* have been specified. The interleave must also
|
||||
@ -515,21 +522,21 @@ ccdinit(ccd, cpaths, p)
|
||||
* guarentee the topology.
|
||||
*/
|
||||
if (cs->sc_nccdisks % 2) {
|
||||
printf("ccd%d: mirroring requires an even number of disks\n", ccd->ccd_unit );
|
||||
printf("ccd%d: mirroring requires an even number of disks\n", cs->sc_unit );
|
||||
error = EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
if (cs->sc_ileave == 0) {
|
||||
printf("ccd%d: an interleave must be specified when mirroring\n", ccd->ccd_unit);
|
||||
printf("ccd%d: an interleave must be specified when mirroring\n", cs->sc_unit);
|
||||
error = EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
cs->sc_size = (cs->sc_nccdisks/2) * minsize;
|
||||
} else if (ccd->ccd_flags & CCDF_PARITY) {
|
||||
} else if (cs->sc_flags & CCDF_PARITY) {
|
||||
cs->sc_size = (cs->sc_nccdisks-1) * minsize;
|
||||
} else {
|
||||
if (cs->sc_ileave == 0) {
|
||||
printf("ccd%d: an interleave must be specified when using parity\n", ccd->ccd_unit);
|
||||
printf("ccd%d: an interleave must be specified when using parity\n", cs->sc_unit);
|
||||
error = EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
@ -540,7 +547,7 @@ ccdinit(ccd, cpaths, p)
|
||||
/*
|
||||
* Construct the interleave table.
|
||||
*/
|
||||
ccdinterleave(cs, ccd->ccd_unit);
|
||||
ccdinterleave(cs, cs->sc_unit);
|
||||
|
||||
/*
|
||||
* Create pseudo-geometry based on 1MB cylinders. It's
|
||||
@ -554,14 +561,13 @@ ccdinit(ccd, cpaths, p)
|
||||
/*
|
||||
* Add an devstat entry for this device.
|
||||
*/
|
||||
devstat_add_entry(&cs->device_stats, "ccd", ccd->ccd_unit,
|
||||
devstat_add_entry(&cs->device_stats, "ccd", cs->sc_unit,
|
||||
ccg->ccg_secsize, DEVSTAT_ALL_SUPPORTED,
|
||||
DEVSTAT_TYPE_STORARRAY |DEVSTAT_TYPE_IF_OTHER,
|
||||
DEVSTAT_PRIORITY_ARRAY);
|
||||
|
||||
cs->sc_flags |= CCDF_INITED;
|
||||
cs->sc_cflags = ccd->ccd_flags; /* So we can find out later... */
|
||||
cs->sc_unit = ccd->ccd_unit;
|
||||
cs->sc_cflags = cs->sc_flags; /* So we can find out later... */
|
||||
return (0);
|
||||
fail:
|
||||
while (ci > cs->sc_cinfo) {
|
||||
@ -573,9 +579,7 @@ ccdinit(ccd, cpaths, p)
|
||||
}
|
||||
|
||||
static void
|
||||
ccdinterleave(cs, unit)
|
||||
struct ccd_softc *cs;
|
||||
int unit;
|
||||
ccdinterleave(struct ccd_s *cs, int unit)
|
||||
{
|
||||
struct ccdcinfo *ci, *smallci;
|
||||
struct ccdiinfo *ii;
|
||||
@ -697,13 +701,10 @@ ccdinterleave(cs, unit)
|
||||
|
||||
/* ARGSUSED */
|
||||
static int
|
||||
ccdopen(dev, flags, fmt, p)
|
||||
dev_t dev;
|
||||
int flags, fmt;
|
||||
struct proc *p;
|
||||
ccdopen(dev_t dev, int flags, int fmt, struct proc *p)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
struct disklabel *lp;
|
||||
int error = 0, part, pmask;
|
||||
|
||||
@ -711,9 +712,8 @@ ccdopen(dev, flags, fmt, p)
|
||||
if (ccddebug & CCDB_FOLLOW)
|
||||
printf("ccdopen(%p, %x)\n", dev, flags);
|
||||
#endif
|
||||
if (unit >= numccd)
|
||||
return (ENXIO);
|
||||
cs = &ccd_softc[unit];
|
||||
|
||||
cs = IS_ALLOCATED(unit) ? ccdfind(unit) : ccdnew(unit);
|
||||
|
||||
if ((error = ccdlock(cs)) != 0)
|
||||
return (error);
|
||||
@ -728,7 +728,7 @@ ccdopen(dev, flags, fmt, p)
|
||||
* open partitions. If not, then it's safe to update
|
||||
* the in-core disklabel.
|
||||
*/
|
||||
if ((cs->sc_flags & CCDF_INITED) && (cs->sc_openmask == 0))
|
||||
if (IS_INITED(cs) && (cs->sc_openmask == 0))
|
||||
ccdgetdisklabel(dev);
|
||||
|
||||
/* Check that the partition exists. */
|
||||
@ -746,13 +746,10 @@ ccdopen(dev, flags, fmt, p)
|
||||
|
||||
/* ARGSUSED */
|
||||
static int
|
||||
ccdclose(dev, flags, fmt, p)
|
||||
dev_t dev;
|
||||
int flags, fmt;
|
||||
struct proc *p;
|
||||
ccdclose(dev_t dev, int flags, int fmt, struct proc *p)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
int error = 0, part;
|
||||
|
||||
#ifdef DEBUG
|
||||
@ -760,9 +757,9 @@ ccdclose(dev, flags, fmt, p)
|
||||
printf("ccdclose(%p, %x)\n", dev, flags);
|
||||
#endif
|
||||
|
||||
if (unit >= numccd)
|
||||
if (!IS_ALLOCATED(unit))
|
||||
return (ENXIO);
|
||||
cs = &ccd_softc[unit];
|
||||
cs = ccdfind(unit);
|
||||
|
||||
if ((error = ccdlock(cs)) != 0)
|
||||
return (error);
|
||||
@ -771,16 +768,19 @@ ccdclose(dev, flags, fmt, p)
|
||||
|
||||
/* ...that much closer to allowing unconfiguration... */
|
||||
cs->sc_openmask &= ~(1 << part);
|
||||
ccdunlock(cs);
|
||||
/* collect "garbage" if possible */
|
||||
if (!IS_INITED(cs) && (cs->sc_flags & CCDF_WANTED) == 0)
|
||||
ccddestroy(cs, p);
|
||||
else
|
||||
ccdunlock(cs);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
ccdstrategy(bp)
|
||||
struct bio *bp;
|
||||
ccdstrategy(struct bio *bp)
|
||||
{
|
||||
int unit = ccdunit(bp->bio_dev);
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
int s;
|
||||
int wlabel;
|
||||
struct disklabel *lp;
|
||||
@ -789,7 +789,7 @@ ccdstrategy(bp)
|
||||
if (ccddebug & CCDB_FOLLOW)
|
||||
printf("ccdstrategy(%p): unit %d\n", bp, unit);
|
||||
#endif
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0) {
|
||||
if (!IS_INITED(cs)) {
|
||||
biofinish(bp, NULL, ENXIO);
|
||||
return;
|
||||
}
|
||||
@ -854,9 +854,7 @@ ccdstrategy(bp)
|
||||
}
|
||||
|
||||
static void
|
||||
ccdstart(cs, bp)
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
ccdstart(struct ccd_s *cs, struct bio *bp)
|
||||
{
|
||||
long bcount, rcount;
|
||||
struct ccdbuf *cbp[4];
|
||||
@ -930,13 +928,7 @@ ccdstart(cs, bp)
|
||||
* Build a component buffer header.
|
||||
*/
|
||||
static void
|
||||
ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
struct ccdbuf **cb;
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
daddr_t bn;
|
||||
caddr_t addr;
|
||||
long bcount;
|
||||
ccdbuffer(struct ccdbuf **cb, struct ccd_s *cs, struct bio *bp, daddr_t bn, caddr_t addr, long bcount)
|
||||
{
|
||||
struct ccdcinfo *ci, *ci2 = NULL; /* XXX */
|
||||
struct ccdbuf *cbp;
|
||||
@ -1073,7 +1065,7 @@ ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
* context for ccdiodone
|
||||
*/
|
||||
cbp->cb_obp = bp;
|
||||
cbp->cb_unit = cs - ccd_softc;
|
||||
cbp->cb_unit = cs->sc_unit;
|
||||
cbp->cb_comp = ci - cs->sc_cinfo;
|
||||
|
||||
#ifdef DEBUG
|
||||
@ -1104,9 +1096,7 @@ ccdbuffer(cb, cs, bp, bn, addr, bcount)
|
||||
}
|
||||
|
||||
static void
|
||||
ccdintr(cs, bp)
|
||||
struct ccd_softc *cs;
|
||||
struct bio *bp;
|
||||
ccdintr(struct ccd_s *cs, struct bio *bp)
|
||||
{
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & CCDB_FOLLOW)
|
||||
@ -1126,8 +1116,7 @@ ccdintr(cs, bp)
|
||||
* take a ccd interrupt.
|
||||
*/
|
||||
static void
|
||||
ccdiodone(ibp)
|
||||
struct bio *ibp;
|
||||
ccdiodone(struct bio *ibp)
|
||||
{
|
||||
struct ccdbuf *cbp = (struct ccdbuf *)ibp;
|
||||
struct bio *bp = cbp->cb_obp;
|
||||
@ -1157,7 +1146,7 @@ ccdiodone(ibp)
|
||||
if (cbp->cb_buf.bio_flags & BIO_ERROR) {
|
||||
const char *msg = "";
|
||||
|
||||
if ((ccd_softc[unit].sc_cflags & CCDF_MIRROR) &&
|
||||
if ((ccdfind(unit)->sc_cflags & CCDF_MIRROR) &&
|
||||
(cbp->cb_buf.bio_cmd == BIO_READ) &&
|
||||
(cbp->cb_pflags & CCDPF_MIRROR_DONE) == 0) {
|
||||
/*
|
||||
@ -1166,7 +1155,7 @@ ccdiodone(ibp)
|
||||
* are doing a scan we do not keep hitting the
|
||||
* bad disk first.
|
||||
*/
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
|
||||
msg = ", trying other disk";
|
||||
cs->sc_pick = 1 - cs->sc_pick;
|
||||
@ -1190,7 +1179,7 @@ ccdiodone(ibp)
|
||||
* we free the second I/O without initiating it.
|
||||
*/
|
||||
|
||||
if (ccd_softc[unit].sc_cflags & CCDF_MIRROR) {
|
||||
if (ccdfind(unit)->sc_cflags & CCDF_MIRROR) {
|
||||
if (cbp->cb_buf.bio_cmd == BIO_WRITE) {
|
||||
/*
|
||||
* When writing, handshake with the second buffer
|
||||
@ -1244,36 +1233,28 @@ ccdiodone(ibp)
|
||||
if (bp->bio_resid < 0)
|
||||
panic("ccdiodone: count");
|
||||
if (bp->bio_resid == 0)
|
||||
ccdintr(&ccd_softc[unit], bp);
|
||||
ccdintr(ccdfind(unit), bp);
|
||||
splx(s);
|
||||
}
|
||||
|
||||
static int
|
||||
ccdioctl(dev, cmd, data, flag, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flag;
|
||||
struct proc *p;
|
||||
ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
int i, j, lookedup = 0, error = 0;
|
||||
int part, pmask, s;
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
struct ccd_ioctl *ccio = (struct ccd_ioctl *)data;
|
||||
struct ccddevice ccd;
|
||||
char **cpp;
|
||||
struct vnode **vpp;
|
||||
|
||||
if (unit >= numccd)
|
||||
if (!IS_ALLOCATED(unit))
|
||||
return (ENXIO);
|
||||
cs = &ccd_softc[unit];
|
||||
|
||||
bzero(&ccd, sizeof(ccd));
|
||||
cs = ccdfind(unit);
|
||||
|
||||
switch (cmd) {
|
||||
case CCDIOCSET:
|
||||
if (cs->sc_flags & CCDF_INITED)
|
||||
if (IS_INITED(cs))
|
||||
return (EBUSY);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1283,9 +1264,8 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
return (error);
|
||||
|
||||
/* Fill in some important bits. */
|
||||
ccd.ccd_unit = unit;
|
||||
ccd.ccd_interleave = ccio->ccio_ileave;
|
||||
if (ccd.ccd_interleave == 0 &&
|
||||
cs->sc_ileave = ccio->ccio_ileave;
|
||||
if (cs->sc_ileave == 0 &&
|
||||
((ccio->ccio_flags & CCDF_MIRROR) ||
|
||||
(ccio->ccio_flags & CCDF_PARITY))) {
|
||||
printf("ccd%d: disabling mirror/parity, interleave is 0\n", unit);
|
||||
@ -1302,7 +1282,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
unit);
|
||||
ccio->ccio_flags |= CCDF_UNIFORM;
|
||||
}
|
||||
ccd.ccd_flags = ccio->ccio_flags & CCDF_USERMASK;
|
||||
cs->sc_flags = ccio->ccio_flags & CCDF_USERMASK;
|
||||
|
||||
/*
|
||||
* Allocate space for and copy in the array of
|
||||
@ -1345,18 +1325,24 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
}
|
||||
++lookedup;
|
||||
}
|
||||
ccd.ccd_cpp = cpp;
|
||||
ccd.ccd_vpp = vpp;
|
||||
ccd.ccd_ndev = ccio->ccio_ndisks;
|
||||
cs->sc_vpp = vpp;
|
||||
cs->sc_nccdisks = ccio->ccio_ndisks;
|
||||
|
||||
/*
|
||||
* Initialize the ccd. Fills in the softc for us.
|
||||
*/
|
||||
if ((error = ccdinit(&ccd, cpp, p)) != 0) {
|
||||
if ((error = ccdinit(cs, cpp, p)) != 0) {
|
||||
for (j = 0; j < lookedup; ++j)
|
||||
(void)vn_close(vpp[j], FREAD|FWRITE,
|
||||
p->p_ucred, p);
|
||||
bzero(&ccd_softc[unit], sizeof(struct ccd_softc));
|
||||
/*
|
||||
* We can't ccddestroy() cs just yet, because nothing
|
||||
* prevents user-level app to do another ioctl()
|
||||
* without closing the device first, therefore
|
||||
* declare unit null and void and let ccdclose()
|
||||
* destroy it when it is safe to do so.
|
||||
*/
|
||||
cs->sc_flags &= (CCDF_WANTED | CCDF_LOCKED);
|
||||
free(vpp, M_DEVBUF);
|
||||
free(cpp, M_DEVBUF);
|
||||
ccdunlock(cs);
|
||||
@ -1367,7 +1353,6 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
* The ccd has been successfully initialized, so
|
||||
* we can place it into the array and read the disklabel.
|
||||
*/
|
||||
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
|
||||
ccio->ccio_unit = unit;
|
||||
ccio->ccio_size = cs->sc_size;
|
||||
ccdgetdisklabel(dev);
|
||||
@ -1377,7 +1362,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
break;
|
||||
|
||||
case CCDIOCCLR:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1394,9 +1379,8 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
return (EBUSY);
|
||||
}
|
||||
|
||||
/*
|
||||
* Free ccd_softc information and clear entry.
|
||||
*/
|
||||
/* Declare unit null and void (reset all flags) */
|
||||
cs->sc_flags &= (CCDF_WANTED | CCDF_LOCKED);
|
||||
|
||||
/* Close the components and free their pathnames. */
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i) {
|
||||
@ -1422,38 +1406,93 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
/* Free component info and interleave table. */
|
||||
free(cs->sc_cinfo, M_DEVBUF);
|
||||
free(cs->sc_itable, M_DEVBUF);
|
||||
cs->sc_flags &= ~CCDF_INITED;
|
||||
free(cs->sc_vpp, M_DEVBUF);
|
||||
|
||||
/*
|
||||
* Free ccddevice information and clear entry.
|
||||
*/
|
||||
free(ccddevs[unit].ccd_cpp, M_DEVBUF);
|
||||
free(ccddevs[unit].ccd_vpp, M_DEVBUF);
|
||||
ccd.ccd_dk = -1;
|
||||
bcopy(&ccd, &ccddevs[unit], sizeof(ccd));
|
||||
|
||||
/*
|
||||
* And remove the devstat entry.
|
||||
*/
|
||||
/* And remove the devstat entry. */
|
||||
devstat_remove_entry(&cs->device_stats);
|
||||
|
||||
/* This must be atomic. */
|
||||
s = splhigh();
|
||||
ccdunlock(cs);
|
||||
bzero(cs, sizeof(struct ccd_softc));
|
||||
splx(s);
|
||||
|
||||
break;
|
||||
|
||||
case CCDCONFINFO:
|
||||
{
|
||||
int ninit = 0;
|
||||
struct ccdconf *conf = (struct ccdconf *)data;
|
||||
struct ccd_s *tmpcs;
|
||||
struct ccd_s *ubuf = conf->buffer;
|
||||
|
||||
/* XXX: LOCK(unique unit numbers) */
|
||||
LIST_FOREACH(tmpcs, &ccd_softc_list, list)
|
||||
if (IS_INITED(tmpcs))
|
||||
ninit++;
|
||||
|
||||
if (conf->size == 0) {
|
||||
conf->size = sizeof(struct ccd_s) * ninit;
|
||||
break;
|
||||
} else if ((conf->size / sizeof(struct ccd_s) != ninit) ||
|
||||
(conf->size % sizeof(struct ccd_s) != 0)) {
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
ubuf += ninit;
|
||||
LIST_FOREACH(tmpcs, &ccd_softc_list, list) {
|
||||
if (!IS_INITED(tmpcs))
|
||||
continue;
|
||||
error = copyout(tmpcs, --ubuf,
|
||||
sizeof(struct ccd_s));
|
||||
if (error != 0)
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
return (error);
|
||||
}
|
||||
/* XXX: UNLOCK(unique unit numbers) */
|
||||
}
|
||||
break;
|
||||
|
||||
case CCDCPPINFO:
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
{
|
||||
int len = 0;
|
||||
struct ccdcpps *cpps = (struct ccdcpps *)data;
|
||||
char *ubuf = cpps->buffer;
|
||||
|
||||
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i)
|
||||
len += cs->sc_cinfo[i].ci_pathlen;
|
||||
|
||||
if (cpps->size == 0) {
|
||||
cpps->size = len;
|
||||
break;
|
||||
} else if (cpps->size != len) {
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
for (i = 0; i < cs->sc_nccdisks; ++i) {
|
||||
len = cs->sc_cinfo[i].ci_pathlen;
|
||||
error = copyout(cs->sc_cinfo[i].ci_path, ubuf,
|
||||
len);
|
||||
if (error != 0)
|
||||
return (error);
|
||||
ubuf += len;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case DIOCGDINFO:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
*(struct disklabel *)data = cs->sc_label;
|
||||
break;
|
||||
|
||||
case DIOCGPART:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
((struct partinfo *)data)->disklab = &cs->sc_label;
|
||||
@ -1463,7 +1502,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
|
||||
case DIOCWDINFO:
|
||||
case DIOCSDINFO:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1491,7 +1530,7 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
break;
|
||||
|
||||
case DIOCWLABEL:
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (ENXIO);
|
||||
|
||||
if ((flag & FWRITE) == 0)
|
||||
@ -1510,19 +1549,18 @@ ccdioctl(dev, cmd, data, flag, p)
|
||||
}
|
||||
|
||||
static int
|
||||
ccdsize(dev)
|
||||
dev_t dev;
|
||||
ccdsize(dev_t dev)
|
||||
{
|
||||
struct ccd_softc *cs;
|
||||
struct ccd_s *cs;
|
||||
int part, size;
|
||||
|
||||
if (ccdopen(dev, 0, S_IFCHR, curproc))
|
||||
return (-1);
|
||||
|
||||
cs = &ccd_softc[ccdunit(dev)];
|
||||
cs = ccdfind(ccdunit(dev));
|
||||
part = ccdpart(dev);
|
||||
|
||||
if ((cs->sc_flags & CCDF_INITED) == 0)
|
||||
if (!IS_INITED(cs))
|
||||
return (-1);
|
||||
|
||||
if (cs->sc_label.d_partitions[part].p_fstype != FS_SWAP)
|
||||
@ -1537,8 +1575,7 @@ ccdsize(dev)
|
||||
}
|
||||
|
||||
static int
|
||||
ccddump(dev)
|
||||
dev_t dev;
|
||||
ccddump(dev_t dev)
|
||||
{
|
||||
|
||||
/* Not implemented. */
|
||||
@ -1551,10 +1588,7 @@ ccddump(dev)
|
||||
* set *vpp to the file's vnode.
|
||||
*/
|
||||
static int
|
||||
ccdlookup(path, p, vpp)
|
||||
char *path;
|
||||
struct proc *p;
|
||||
struct vnode **vpp; /* result */
|
||||
ccdlookup(char *path, struct proc *p, struct vnode **vpp)
|
||||
{
|
||||
struct nameidata nd;
|
||||
struct vnode *vp;
|
||||
@ -1564,7 +1598,7 @@ ccdlookup(path, p, vpp)
|
||||
flags = FREAD | FWRITE;
|
||||
if ((error = vn_open(&nd, &flags, 0)) != 0) {
|
||||
#ifdef DEBUG
|
||||
if (ccddebug & CCDB_FOLLOW|CCDB_INIT)
|
||||
if (ccddebug & (CCDB_FOLLOW|CCDB_INIT))
|
||||
printf("ccdlookup: vn_open error = %d\n", error);
|
||||
#endif
|
||||
return (error);
|
||||
@ -1601,11 +1635,10 @@ ccdlookup(path, p, vpp)
|
||||
* up.
|
||||
*/
|
||||
static void
|
||||
ccdgetdisklabel(dev)
|
||||
dev_t dev;
|
||||
ccdgetdisklabel(dev_t dev)
|
||||
{
|
||||
int unit = ccdunit(dev);
|
||||
struct ccd_softc *cs = &ccd_softc[unit];
|
||||
struct ccd_s *cs = ccdfind(unit);
|
||||
char *errstring;
|
||||
struct disklabel *lp = &cs->sc_label;
|
||||
struct ccdgeom *ccg = &cs->sc_geom;
|
||||
@ -1658,8 +1691,7 @@ ccdgetdisklabel(dev)
|
||||
* that a disklabel isn't present.
|
||||
*/
|
||||
static void
|
||||
ccdmakedisklabel(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdmakedisklabel(struct ccd_s *cs)
|
||||
{
|
||||
struct disklabel *lp = &cs->sc_label;
|
||||
|
||||
@ -1679,8 +1711,7 @@ ccdmakedisklabel(cs)
|
||||
* Several drivers do this; it should be abstracted and made MP-safe.
|
||||
*/
|
||||
static int
|
||||
ccdlock(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdlock(struct ccd_s *cs)
|
||||
{
|
||||
int error;
|
||||
|
||||
@ -1697,8 +1728,7 @@ ccdlock(cs)
|
||||
* Unlock and wake up any waiters.
|
||||
*/
|
||||
static void
|
||||
ccdunlock(cs)
|
||||
struct ccd_softc *cs;
|
||||
ccdunlock(struct ccd_s *cs)
|
||||
{
|
||||
|
||||
cs->sc_flags &= ~CCDF_LOCKED;
|
||||
@ -1710,8 +1740,7 @@ ccdunlock(cs)
|
||||
|
||||
#ifdef DEBUG
|
||||
static void
|
||||
printiinfo(ii)
|
||||
struct ccdiinfo *ii;
|
||||
printiinfo(struct ccdiinfo *ii)
|
||||
{
|
||||
int ix, i;
|
||||
|
||||
|
||||
@ -3,13 +3,7 @@
|
||||
.PATH: ${.CURDIR}/../../dev/ccd
|
||||
|
||||
KMOD= ccd
|
||||
SRCS= ccd.c ccd.h vnode_if.h
|
||||
SRCS= ccd.c vnode_if.h
|
||||
NOMAN=
|
||||
|
||||
NCCD?= 4
|
||||
CLEANFILES= ccd.h
|
||||
|
||||
ccd.h:
|
||||
echo "#define NCCD ${NCCD}" > ccd.h
|
||||
|
||||
.include <bsd.kmod.mk>
|
||||
|
||||
@ -85,19 +85,6 @@
|
||||
* Moffett Field, CA 94035
|
||||
*/
|
||||
|
||||
/*
|
||||
* A concatenated disk is described at initialization time by this structure.
|
||||
*/
|
||||
struct ccddevice {
|
||||
int ccd_unit; /* logical unit of this ccd */
|
||||
int ccd_interleave; /* interleave (DEV_BSIZE blocks) */
|
||||
int ccd_flags; /* misc. information */
|
||||
int ccd_dk; /* disk number */
|
||||
struct vnode **ccd_vpp; /* array of component vnodes */
|
||||
char **ccd_cpp; /* array of component pathnames */
|
||||
int ccd_ndev; /* number of component devices */
|
||||
};
|
||||
|
||||
/*
|
||||
* This structure is used to configure a ccd via ioctl(2).
|
||||
*/
|
||||
@ -110,12 +97,6 @@ struct ccd_ioctl {
|
||||
size_t ccio_size; /* (returned) size of ccd */
|
||||
};
|
||||
|
||||
/* ccd_flags */
|
||||
#define CCDF_SWAP 0x01 /* interleave should be dmmax */
|
||||
#define CCDF_UNIFORM 0x02 /* use LCCD of sizes for uniform interleave */
|
||||
#define CCDF_MIRROR 0x04 /* use mirroring */
|
||||
#define CCDF_PARITY 0x08 /* use parity (RAID level 5) */
|
||||
|
||||
/* Mask of user-settable ccd flags. */
|
||||
#define CCDF_USERMASK (CCDF_SWAP|CCDF_UNIFORM|CCDF_MIRROR|CCDF_PARITY)
|
||||
|
||||
@ -175,10 +156,13 @@ struct ccdgeom {
|
||||
};
|
||||
|
||||
/*
|
||||
* A concatenated disk is described after initialization by this structure.
|
||||
* A concatenated disk is described by this structure.
|
||||
*/
|
||||
struct ccd_softc {
|
||||
struct ccd_s {
|
||||
LIST_ENTRY(ccd_s) list;
|
||||
|
||||
int sc_unit; /* logical unit number */
|
||||
struct vnode **sc_vpp; /* array of component vnodes */
|
||||
int sc_flags; /* flags */
|
||||
int sc_cflags; /* configuration flags */
|
||||
size_t sc_size; /* size of ccd */
|
||||
@ -195,10 +179,14 @@ struct ccd_softc {
|
||||
};
|
||||
|
||||
/* sc_flags */
|
||||
#define CCDF_INITED 0x01 /* unit has been initialized */
|
||||
#define CCDF_WLABEL 0x02 /* label area is writable */
|
||||
#define CCDF_LABELLING 0x04 /* unit is currently being labelled */
|
||||
#define CCDF_WANTED 0x40 /* someone is waiting to obtain a lock */
|
||||
#define CCDF_SWAP 0x01 /* interleave should be dmmax */
|
||||
#define CCDF_UNIFORM 0x02 /* use LCCD of sizes for uniform interleave */
|
||||
#define CCDF_MIRROR 0x04 /* use mirroring */
|
||||
#define CCDF_PARITY 0x08 /* use parity (RAID level 5) */
|
||||
#define CCDF_INITED 0x10 /* unit has been initialized */
|
||||
#define CCDF_WLABEL 0x20 /* label area is writable */
|
||||
#define CCDF_LABELLING 0x40 /* unit is currently being labelled */
|
||||
#define CCDF_WANTED 0x60 /* someone is waiting to obtain a lock */
|
||||
#define CCDF_LOCKED 0x80 /* unit is locked */
|
||||
|
||||
/*
|
||||
@ -210,3 +198,15 @@ struct ccd_softc {
|
||||
*/
|
||||
#define CCDIOCSET _IOWR('F', 16, struct ccd_ioctl) /* enable ccd */
|
||||
#define CCDIOCCLR _IOW('F', 17, struct ccd_ioctl) /* disable ccd */
|
||||
|
||||
struct ccdconf {
|
||||
int size; /* sizeof of buffer below */
|
||||
struct ccd_s *buffer; /* pointer to a configuration array */
|
||||
};
|
||||
#define CCDCONFINFO _IOWR('F', 19, struct ccdconf) /* get config */
|
||||
|
||||
struct ccdcpps {
|
||||
int size;
|
||||
char *buffer;
|
||||
};
|
||||
#define CCDCPPINFO _IOWR('F', 20, struct ccdcpps) /* get components */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user