--- wikisrc/users/mlelstv/disk-driver-template.mdwn	2016/11/28 06:11:23	1.8
+++ wikisrc/users/mlelstv/disk-driver-template.mdwn	2016/12/08 11:39:34	1.12
@@ -25,7 +25,7 @@ const struct bdevsw xxx_bdevsww= {
 	.d_dump = xxxdump,
 	.d_psize = xxxsize,
 	.d_discard = xxxdiscard,
-	.d_flag = D_DISK
+	.d_flag = D_DISK | D_MPSAFE
 };
 
 const struct cdevsw xxx_cdevsw = {
@@ -40,7 +40,7 @@ const struct cdevsw xxx_cdevsw = {
 	.d_mmap = nommap,
 	.d_kqfilter = nokqfilter,
 	.d_discard = xxxdiscard,
-	.d_flag = D_DISK
+	.d_flag = D_DISK | D_MPSAFE
 };
 
 static void     xxxminphys(struct buf *bp);
@@ -54,17 +54,20 @@ static const struct dkdriver xxxdkdriver
 	.d_open = xxxopen,
 	.d_close = xxxclose,
 	.d_strategy = xxxstrategy,
-	.d_iosize = xxx_iosize,
 	.d_minphys  = xxxminphys,
 	.d_diskstart = xxx_diskstart,
-	.d_dumpblocks = xxx_dumpblocks,
-	.d_lastclose = xxx_lastclose,
-	.d_discard = xxx_discard
+	.d_discard = xxx_discard,
+	.d_dumpblocks = xxx_dumpblocks,	/* optional */
+	.d_iosize = xxx_iosize,		/* optional */
+	.d_lastclose = xxx_lastclose,	/* optional */
+	.d_firstopen = xxx_firstopen,	/* optional */
+	.d_label = xxx_label,		/* optional */
 };
 
 static int      xxx_match(device_t, cfdata_t, void *);
 static void     xxx_attach(device_t, device_t, void *);
 static int      xxx_detach(device_t, int);
+static int      xxx_activate(device_t, enum devact);
 
 struct xxx_softc {
 	struct dk_softc         sc_dksc; /* generic disk interface */
@@ -343,6 +346,19 @@ xxx_detach(device_t self, int flags)
 	xxx_finish(self);
 #endif
 }
+
+static int
+xxx_activate(device_t self, enum devact act)
+{
+	// switch (act) {
+	// case DVACT_ACTIVATE:
+	//	return 0;
+	// case DVACT_DEACTIVATE:
+	//	return 0;
+	// }
+
+	return EOPNOTSUPP;
+}
 </code></pre>
 
 ----
@@ -448,6 +464,7 @@ static int
 xxx_dumpblocks(device_t dv, void *va, daddr_t blkno, int nblk)
 {
 	// issue polling I/O to dump a page
+	// return error
 }
 
 static void
@@ -460,7 +477,16 @@ static int
 xxx_discard(device_t dv, off_t pos, off_t len)
 {
 	// issue request to discard bytes
+	// return error
+}
+
+static void
+xxx_label(device_t dv, struct disklabel *lp)
+{
+	// lp is initialized for generic disk
+	// augment with driver specific information
 }
+
 </code></pre>
 
 ----
@@ -479,12 +505,6 @@ xxxstrategy(struct buf *bp)
 	// wake up I/O thread
 }
 
-static int
-xxx_diskstart(device_t dv, struct buf *bp)
-{
-	// issue I/O for bp
-}
-
 static void
 xxxdone(struct xxx_softc *sc, struct buf *bp)
 {
@@ -495,7 +515,7 @@ xxxdone(struct xxx_softc *sc, struct buf
 }
 
 static void
-xxx_IOTHREAD(struct dk_softc *dksc)
+xxx_iothread(struct dk_softc *dksc)
 {
 	while (!shutting_down) {
 		if (dk_strategy_pending(dksc))