diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 894e7113e0b3..83467a05dc8e 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -48,7 +48,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME	"ahci"
-#define DRV_VERSION	"1.01"
+#define DRV_VERSION	"1.2"
 
 
 enum {
@@ -558,23 +558,25 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
 	pp->cmd_slot[0].opts |= cpu_to_le32(n_elem << 16);
 }
 
-static void ahci_intr_error(struct ata_port *ap, u32 irq_stat)
+static void ahci_restart_port(struct ata_port *ap, u32 irq_stat)
 {
 	void __iomem *mmio = ap->host_set->mmio_base;
 	void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
 	u32 tmp;
 	int work;
 
-	printk(KERN_WARNING "ata%u: port reset, "
-	       "p_is %x is %x pis %x cmd %x tf %x ss %x se %x\n",
-		ap->id,
-		irq_stat,
-		readl(mmio + HOST_IRQ_STAT),
-		readl(port_mmio + PORT_IRQ_STAT),
-		readl(port_mmio + PORT_CMD),
-		readl(port_mmio + PORT_TFDATA),
-		readl(port_mmio + PORT_SCR_STAT),
-		readl(port_mmio + PORT_SCR_ERR));
+	if ((ap->device[0].class != ATA_DEV_ATAPI) ||
+	    ((irq_stat & PORT_IRQ_TF_ERR) == 0))
+		printk(KERN_WARNING "ata%u: port reset, "
+		       "p_is %x is %x pis %x cmd %x tf %x ss %x se %x\n",
+			ap->id,
+			irq_stat,
+			readl(mmio + HOST_IRQ_STAT),
+			readl(port_mmio + PORT_IRQ_STAT),
+			readl(port_mmio + PORT_CMD),
+			readl(port_mmio + PORT_TFDATA),
+			readl(port_mmio + PORT_SCR_STAT),
+			readl(port_mmio + PORT_SCR_ERR));
 
 	/* stop DMA */
 	tmp = readl(port_mmio + PORT_CMD);
@@ -632,7 +634,7 @@ static void ahci_eng_timeout(struct ata_port *ap)
 		printk(KERN_ERR "ata%u: BUG: timeout without command\n",
 		       ap->id);
 	} else {
-		ahci_intr_error(ap, readl(port_mmio + PORT_IRQ_STAT));
+		ahci_restart_port(ap, readl(port_mmio + PORT_IRQ_STAT));
 
 		/* hack alert!  We cannot use the supplied completion
 	 	 * function from inside the ->eh_strategy_handler() thread.
@@ -677,7 +679,7 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
 			err_mask = AC_ERR_HOST_BUS;
 
 		/* command processing has stopped due to error; restart */
-		ahci_intr_error(ap, status);
+		ahci_restart_port(ap, status);
 
 		if (qc)
 			ata_qc_complete(qc, err_mask);
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 7a1ed94492f9..887b2b9ee4aa 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -50,7 +50,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"ata_piix"
-#define DRV_VERSION	"1.04"
+#define DRV_VERSION	"1.05"
 
 enum {
 	PIIX_IOCFG		= 0x54, /* IDE I/O configuration register */
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index ba1eb8b38e00..bb604dfbdef6 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1570,11 +1570,13 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
 
 	/*
 	 * Find the mode. 
-	*/
+	 */
 
 	if (!(s = ata_timing_find_mode(speed)))
 		return -EINVAL;
 
+	memcpy(t, s, sizeof(*s));
+
 	/*
 	 * If the drive is an EIDE drive, it can tell us it needs extended
 	 * PIO/MW_DMA cycle timing.
@@ -1595,7 +1597,7 @@ int ata_timing_compute(struct ata_device *adev, unsigned short speed,
 	 * Convert the timing to bus clock counts.
 	 */
 
-	ata_timing_quantize(s, t, T, UT);
+	ata_timing_quantize(t, t, T, UT);
 
 	/*
 	 * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, S.M.A.R.T
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 74a84e0ec0a4..8ebaa694d18e 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -29,7 +29,7 @@
 #define __LIBATA_H__
 
 #define DRV_NAME	"libata"
-#define DRV_VERSION	"1.12"	/* must be exactly four chars */
+#define DRV_VERSION	"1.20"	/* must be exactly four chars */
 
 struct ata_scsi_args {
 	u16			*id;
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 242d906987ad..8a8e3e3ef0ed 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -46,7 +46,7 @@
 #include "sata_promise.h"
 
 #define DRV_NAME	"sata_promise"
-#define DRV_VERSION	"1.02"
+#define DRV_VERSION	"1.03"
 
 
 enum {
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index 4a6d3067d23c..a8987f5ff5cc 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -41,7 +41,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"sata_qstor"
-#define DRV_VERSION	"0.04"
+#define DRV_VERSION	"0.05"
 
 enum {
 	QS_PORTS		= 4,
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 55e744d6db88..cb1933a3bd55 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -139,6 +139,7 @@ enum {
 	PORT_CS_DEV_RST		= (1 << 1), /* device reset */
 	PORT_CS_INIT		= (1 << 2), /* port initialize */
 	PORT_CS_IRQ_WOC		= (1 << 3), /* interrupt write one to clear */
+	PORT_CS_CDB16		= (1 << 5), /* 0=12b cdb, 1=16b cdb */
 	PORT_CS_RESUME		= (1 << 6), /* port resume */
 	PORT_CS_32BIT_ACTV	= (1 << 10), /* 32-bit activation */
 	PORT_CS_PM_EN		= (1 << 13), /* port multiplier enable */
@@ -188,11 +189,29 @@ enum {
 	PORT_CERR_XFR_PCIPERR	= 35, /* PSD ecode 11 - PCI prity err during transfer */
 	PORT_CERR_SENDSERVICE	= 36, /* FIS received while sending service */
 
+	/* bits of PRB control field */
+	PRB_CTRL_PROTOCOL	= (1 << 0), /* override def. ATA protocol */
+	PRB_CTRL_PACKET_READ	= (1 << 4), /* PACKET cmd read */
+	PRB_CTRL_PACKET_WRITE	= (1 << 5), /* PACKET cmd write */
+	PRB_CTRL_NIEN		= (1 << 6), /* Mask completion irq */
+	PRB_CTRL_SRST		= (1 << 7), /* Soft reset request (ign BSY?) */
+
+	/* PRB protocol field */
+	PRB_PROT_PACKET		= (1 << 0),
+	PRB_PROT_TCQ		= (1 << 1),
+	PRB_PROT_NCQ		= (1 << 2),
+	PRB_PROT_READ		= (1 << 3),
+	PRB_PROT_WRITE		= (1 << 4),
+	PRB_PROT_TRANSPARENT	= (1 << 5),
+
 	/*
 	 * Other constants
 	 */
 	SGE_TRM			= (1 << 31), /* Last SGE in chain */
-	PRB_SOFT_RST		= (1 << 7),  /* Soft reset request (ign BSY?) */
+	SGE_LNK			= (1 << 30), /* linked list
+						Points to SGT, not SGE */
+	SGE_DRD			= (1 << 29), /* discard data read (/dev/null)
+						data address ignored */
 
 	/* board id */
 	BID_SIL3124		= 0,
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 57e5a9d964c3..6e7f7c83a75a 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -54,7 +54,7 @@
 #endif /* CONFIG_PPC_OF */
 
 #define DRV_NAME	"sata_svw"
-#define DRV_VERSION	"1.06"
+#define DRV_VERSION	"1.07"
 
 /* Taskfile registers offsets */
 #define K2_SATA_TF_CMD_OFFSET		0x00
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index b4bbe48acab0..dcc3ad9a9d6e 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -46,7 +46,7 @@
 #include "sata_promise.h"
 
 #define DRV_NAME	"sata_sx4"
-#define DRV_VERSION	"0.7"
+#define DRV_VERSION	"0.8"
 
 
 enum {
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 77a6e4b9262d..fcfa486965b4 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -47,7 +47,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"sata_vsc"
-#define DRV_VERSION	"1.0"
+#define DRV_VERSION	"1.1"
 
 /* Interrupt register offsets (from chip base address) */
 #define VSC_SATA_INT_STAT_OFFSET	0x00