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Commit ca605b7d authored by Sowmini Varadhan's avatar Sowmini Varadhan Committed by David S. Miller
Browse files

sparc64: Add vio_set_intr() to enable/disable Rx interrupts 



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: default avatarSowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d0aedcd4

arch/sparc/include/asm/vio.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -298,6 +298,7 @@ struct vio_dev { 




	unsigned int		tx_irq;

	unsigned int		tx_irq;

	unsigned int		rx_irq;

	unsigned int		rx_irq;

	u64			rx_ino;





	struct device		dev;

	struct device		dev;

};

};
@@ -453,5 +454,6 @@ int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev, 
		    char *name);

		    char *name);





void vio_port_up(struct vio_driver_state *vio);

void vio_port_up(struct vio_driver_state *vio);

int vio_set_intr(unsigned long dev_ino, int state);





#endif /* _SPARC64_VIO_H */
 
#endif /* _SPARC64_VIO_H */

arch/sparc/kernel/vio.c

+12 −1
Original line number Original line Diff line number Diff line
@@ -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);

			vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);





		irq = mdesc_get_property(hp, target, "rx-ino", NULL);

		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_irq = sun4v_build_virq(cdev_cfg_handle, *irq);

			vdev->rx_ino = *irq;

		}





		chan_id = mdesc_get_property(hp, target, "id", NULL);

		chan_id = mdesc_get_property(hp, target, "id", NULL);

		if (chan_id)

		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,

static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,

				      struct device *parent)

				      struct device *parent)

{

{