libata: separate out ata_ncq_enabled()

[powerpc.git] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 86762a9..5233e47 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -495,6 +495,7 @@ struct ata_device {
 
        /* error history */
        struct ata_ering        ering;
+       int                     spdn_cnt;
        unsigned int            horkage;        /* List of broken features */
 #ifdef CONFIG_SATA_ACPI
        /* ACPI objects info */
@@ -759,6 +760,7 @@ extern void ata_port_queue_task(struct ata_port *ap, work_func_t fn,
 extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
                             unsigned long interval_msec,
                             unsigned long timeout_msec);
+extern unsigned int ata_dev_try_classify(struct ata_port *, unsigned int, u8 *);
 
 /*
  * Default driver ops implementations
@@ -1031,6 +1033,21 @@ static inline u8 ata_chk_status(struct ata_port *ap)
        return ap->ops->check_status(ap);
 }
 
+/**
+ *     ata_ncq_enabled - Test whether NCQ is enabled
+ *     @dev: ATA device to test for
+ *
+ *     LOCKING:
+ *     spin_lock_irqsave(host lock)
+ *
+ *     RETURNS:
+ *     1 if NCQ is enabled for @dev, 0 otherwise.
+ */
+static inline int ata_ncq_enabled(struct ata_device *dev)
+{
+       return (dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
+                             ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ;
+}
 
 /**
  *     ata_pause - Flush writes and pause 400 nanoseconds.