Merge branch 'upstream'

Conflicts:

	drivers/scsi/libata-core.c
	drivers/scsi/pdc_adma.c
	drivers/scsi/sata_mv.c
	drivers/scsi/sata_nv.c
	drivers/scsi/sata_promise.c
	drivers/scsi/sata_qstor.c
	drivers/scsi/sata_sx4.c
	drivers/scsi/sata_vsc.c
	include/linux/libata.h

1 files changed, 57 insertions, 35 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index b0171e9..cc6cc08 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -120,10 +120,12 @@ enum {
 	ATA_SHT_USE_CLUSTERING	= 1,
 
 	/* struct ata_device stuff */
-	ATA_DFLAG_LBA48		= (1 << 0), /* device supports LBA48 */
-	ATA_DFLAG_PIO		= (1 << 1), /* device currently in PIO mode */
-	ATA_DFLAG_LBA		= (1 << 2), /* device supports LBA */
-	ATA_DFLAG_CDB_INTR	= (1 << 3), /* device asserts INTRQ when ready for CDB */
+	ATA_DFLAG_LBA		= (1 << 0), /* device supports LBA */
+	ATA_DFLAG_LBA48		= (1 << 1), /* device supports LBA48 */
+	ATA_DFLAG_CDB_INTR	= (1 << 2), /* device asserts INTRQ when ready for CDB */
+	ATA_DFLAG_CFG_MASK	= (1 << 8) - 1,
+
+	ATA_DFLAG_PIO		= (1 << 8), /* device currently in PIO mode */
 
 	ATA_DEV_UNKNOWN		= 0,	/* unknown device */
 	ATA_DEV_ATA		= 1,	/* ATA device */
@@ -133,33 +135,35 @@ enum {
 	ATA_DEV_NONE		= 5,	/* no device */
 
 	/* struct ata_port flags */
-	ATA_FLAG_SLAVE_POSS	= (1 << 1), /* host supports slave dev */
+	ATA_FLAG_SLAVE_POSS	= (1 << 0), /* host supports slave dev */
 					    /* (doesn't imply presence) */
-	ATA_FLAG_PORT_DISABLED	= (1 << 2), /* port is disabled, ignore it */
-	ATA_FLAG_SATA		= (1 << 3),
-	ATA_FLAG_NO_LEGACY	= (1 << 4), /* no legacy mode check */
-	ATA_FLAG_SRST		= (1 << 5), /* (obsolete) use ATA SRST, not E.D.D. */
-	ATA_FLAG_MMIO		= (1 << 6), /* use MMIO, not PIO */
-	ATA_FLAG_SATA_RESET	= (1 << 7), /* (obsolete) use COMRESET */
-	ATA_FLAG_PIO_DMA	= (1 << 8), /* PIO cmds via DMA */
-	ATA_FLAG_PIO_POLLING	= (1 << 9), /* use polling PIO if LLD
-					     * doesn't handle PIO interrupts */
-	ATA_FLAG_DEBUGMSG	= (1 << 10),
-	ATA_FLAG_NO_ATAPI	= (1 << 11), /* No ATAPI support */
-
-	ATA_FLAG_SUSPENDED	= (1 << 12), /* port is suspended */
-
-	ATA_FLAG_PIO_LBA48	= (1 << 13), /* Host DMA engine is LBA28 only */
-	ATA_FLAG_IRQ_MASK	= (1 << 14), /* Mask IRQ in PIO xfers */
-
-	ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* Flush port task */
-	ATA_FLAG_IN_EH		= (1 << 16), /* EH in progress */
-
-	ATA_QCFLAG_ACTIVE	= (1 << 1), /* cmd not yet ack'd to scsi lyer */
-	ATA_QCFLAG_SG		= (1 << 3), /* have s/g table? */
-	ATA_QCFLAG_SINGLE	= (1 << 4), /* no s/g, just a single buffer */
+	ATA_FLAG_SATA		= (1 << 1),
+	ATA_FLAG_NO_LEGACY	= (1 << 2), /* no legacy mode check */
+	ATA_FLAG_MMIO		= (1 << 3), /* use MMIO, not PIO */
+	ATA_FLAG_SRST		= (1 << 4), /* (obsolete) use ATA SRST, not E.D.D. */
+	ATA_FLAG_SATA_RESET	= (1 << 5), /* (obsolete) use COMRESET */
+	ATA_FLAG_NO_ATAPI	= (1 << 6), /* No ATAPI support */
+	ATA_FLAG_PIO_DMA	= (1 << 7), /* PIO cmds via DMA */
+	ATA_FLAG_PIO_LBA48	= (1 << 8), /* Host DMA engine is LBA28 only */
+	ATA_FLAG_IRQ_MASK	= (1 << 9), /* Mask IRQ in PIO xfers */
+	ATA_FLAG_PIO_POLLING	= (1 << 10), /* use polling PIO if LLD
+					      * doesn't handle PIO interrupts */
+
+	ATA_FLAG_DEBUGMSG	= (1 << 17),
+	ATA_FLAG_FLUSH_PORT_TASK = (1 << 18), /* flush port task */
+
+	ATA_FLAG_DISABLED	= (1 << 19), /* port is disabled, ignore it */
+	ATA_FLAG_SUSPENDED	= (1 << 20), /* port is suspended */
+
+	/* bits 24:31 of ap->flags are reserved for LLDD specific flags */
+
+	/* struct ata_queued_cmd flags */
+	ATA_QCFLAG_ACTIVE	= (1 << 0), /* cmd not yet ack'd to scsi lyer */
+	ATA_QCFLAG_SG		= (1 << 1), /* have s/g table? */
+	ATA_QCFLAG_SINGLE	= (1 << 2), /* no s/g, just a single buffer */
 	ATA_QCFLAG_DMAMAP	= ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
-	ATA_QCFLAG_EH_SCHEDULED = (1 << 5), /* EH scheduled */
+	ATA_QCFLAG_IO		= (1 << 3), /* standard IO command */
+	ATA_QCFLAG_EH_SCHEDULED = (1 << 4), /* EH scheduled */
 
 	/* host set flags */
 	ATA_HOST_SIMPLEX	= (1 << 0),	/* Host is simplex, one DMA channel per host_set only */
@@ -205,10 +209,13 @@ enum {
 	/* size of buffer to pad xfers ending on unaligned boundaries */
 	ATA_DMA_PAD_SZ		= 4,
 	ATA_DMA_PAD_BUF_SZ	= ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
-	
-	/* Masks for port functions */
+
+	/* masks for port functions */
 	ATA_PORT_PRIMARY	= (1 << 0),
 	ATA_PORT_SECONDARY	= (1 << 1),
+
+	/* how hard are we gonna try to probe/recover devices */
+	ATA_PROBE_MAX_TRIES	= 3,
 };
 
 enum hsm_task_states {
@@ -394,6 +401,7 @@ struct ata_port {
 	unsigned int		mwdma_mask;
 	unsigned int		udma_mask;
 	unsigned int		cbl;	/* cable type; ATA_CBL_xxx */
+	unsigned int		sata_spd_limit;	/* SATA PHY speed limit */
 
 	struct ata_device	device[ATA_MAX_DEVICES];
 
@@ -519,9 +527,6 @@ extern void ata_host_set_remove(struct ata_host_set *host_set);
 extern int ata_scsi_detect(struct scsi_host_template *sht);
 extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
 extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
-extern int ata_scsi_error(struct Scsi_Host *host);
-extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
-extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
 extern int ata_scsi_release(struct Scsi_Host *host);
 extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
 extern int ata_scsi_device_resume(struct scsi_device *);
@@ -570,7 +575,6 @@ extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
 extern u8   ata_bmdma_status(struct ata_port *ap);
 extern void ata_bmdma_irq_clear(struct ata_port *ap);
 extern void __ata_qc_complete(struct ata_queued_cmd *qc);
-extern void ata_eng_timeout(struct ata_port *ap);
 extern void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
 			      struct scsi_cmnd *cmd,
 			      void (*done)(struct scsi_cmnd *));
@@ -625,6 +629,14 @@ extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bit
 extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_device *, unsigned long);
 #endif /* CONFIG_PCI */
 
+/*
+ * EH
+ */
+extern int ata_scsi_error(struct Scsi_Host *host);
+extern void ata_eng_timeout(struct ata_port *ap);
+extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
+extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
+
 
 static inline int
 ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc)
@@ -678,6 +690,11 @@ static inline unsigned int ata_class_disabled(unsigned int class)
 	return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP;
 }
 
+static inline unsigned int ata_class_absent(unsigned int class)
+{
+	return !ata_class_enabled(class) && !ata_class_disabled(class);
+}
+
 static inline unsigned int ata_dev_enabled(const struct ata_device *dev)
 {
 	return ata_class_enabled(dev->class);
@@ -688,6 +705,11 @@ static inline unsigned int ata_dev_disabled(const struct ata_device *dev)
 	return ata_class_disabled(dev->class);
 }
 
+static inline unsigned int ata_dev_absent(const struct ata_device *dev)
+{
+	return ata_class_absent(dev->class);
+}
+
 static inline u8 ata_chk_status(struct ata_port *ap)
 {
 	return ap->ops->check_status(ap);