The vio_set_intr() API should be used by VIO consumers to enable/disable
Rx interrupts to facilitate deferred processing in softirq/bottom-half
context.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@xxxxxxxxxx>
---
arch/sparc/include/asm/vio.h | 2 ++
arch/sparc/kernel/vio.c | 13 ++++++++++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index e0f6c39..0847b11 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -279,6 +279,7 @@ struct vio_dev {
unsigned int tx_irq;
unsigned int rx_irq;
+ u64 rx_ino;
struct device dev;
};
@@ -407,5 +408,6 @@ int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
char *name);
void vio_port_up(struct vio_driver_state *vio);
+int vio_set_intr(unsigned long dev_ino, int state);
#endif /* _SPARC64_VIO_H */
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 8647fcc..cb5789c 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -180,8 +180,10 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp,
vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
irq = mdesc_get_property(hp, target, "rx-ino", NULL);
- if (irq)
+ if (irq) {
vdev->rx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
+ vdev->rx_ino = *irq;
+ }
chan_id = mdesc_get_property(hp, target, "id", NULL);
if (chan_id)
@@ -189,6 +191,15 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp,
}
}
+int vio_set_intr(unsigned long dev_ino, int state)
+{
+ int err;
+
+ err = sun4v_vintr_set_valid(cdev_cfg_handle, dev_ino, state);
+ return err;
+}
+EXPORT_SYMBOL(vio_set_intr);
+
static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
struct device *parent)
{
--
1.8.4.2
--
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