--- ata-disk.c.orig	Mon Aug 25 18:01:49 2003
+++ ata-disk.c	Tue Sep  2 00:15:31 2003
@@ -55,6 +55,7 @@
 
 /* prototypes */
 static void ad_detach(struct ata_device *);
+static void ad_reinit(struct ata_device *);
 static void ad_start(struct ata_device *);
 static void ad_done(struct ata_request *);
 static disk_open_t adopen;
@@ -152,6 +153,7 @@
 
     /* setup the function ptrs */
     atadev->detach = ad_detach;
+    atadev->reinit = ad_reinit;
     atadev->start = ad_start;
     atadev->softc = adp;
 
@@ -202,6 +204,19 @@
     atadev->softc = NULL;
     atadev->flags = 0;
     free(adp, M_AD);
+}
+
+static void
+ad_reinit(struct ata_device *atadev)
+{
+    struct ad_softc *adp = atadev->softc;
+
+    ata_controlcmd(atadev, ATA_SET_MULTI, 0, 0, (adp->max_iosize / DEV_BSIZE));
+
+    if (ata_dma && atadev->channel->dma)
+        atadev->setmode(atadev, ATA_DMA_MAX);
+    else
+        atadev->setmode(atadev, ATA_PIO_MAX);
 }
 
 static int