Displaying 20 results from an estimated 476 matches for "irq_handl".
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irq_handled
2009 May 07
1
[PATCH 2/3] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 May 07
1
[PATCH 2/3] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 May 13
0
[PATCHv5 2/3] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 May 14
0
[PATCHv6 3/4] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 May 13
0
[PATCHv5 2/3] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 May 14
0
[PATCHv6 3/4] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2014 Sep 22
1
[PATCH] virtio: unify config_changed handling
Replace duplicated code in all transports with a single wrapper in
virtio.c.
The only functional change is in virtio_mmio.c: if a buggy device sends
us an interrupt before driver is set, we previously returned IRQ_NONE,
now we return IRQ_HANDLED.
As this must not happen in practice, this does not look like a big deal.
See also commit 3fff0179e33cd7d0a688dab65700c46ad089e934
virtio-pci: do not oops on config change if driver not loaded.
for the original motivation behind the driver check.
Signed-off-by: Michael S. Tsirkin <mst at r...
2014 Sep 22
1
[PATCH] virtio: unify config_changed handling
Replace duplicated code in all transports with a single wrapper in
virtio.c.
The only functional change is in virtio_mmio.c: if a buggy device sends
us an interrupt before driver is set, we previously returned IRQ_NONE,
now we return IRQ_HANDLED.
As this must not happen in practice, this does not look like a big deal.
See also commit 3fff0179e33cd7d0a688dab65700c46ad089e934
virtio-pci: do not oops on config change if driver not loaded.
for the original motivation behind the driver check.
Signed-off-by: Michael S. Tsirkin <mst at r...
2011 Jan 17
8
[PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
...Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
* it ends up to issue several memory accesses upon percpu data and
* thus adds unnecessary traffic to other paths.
@@ -99,7 +101,13 @@ static int xen_slab_ready;
static irqreturn_t
xen_dummy_handler(int irq, void *dev_id)
{
+ return IRQ_HANDLED;
+}
+static irqreturn_t
+xen_resched_handler(int irq, void *dev_id)
+{
+ scheduler_ipi();
return IRQ_HANDLED;
}
@@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqaction = {
};
static struct irqaction xen_resched_irqaction = {
- .handler = xen_dummy_handler,
+ .handler = xen_resche...
2011 Jan 17
8
[PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
...Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
* it ends up to issue several memory accesses upon percpu data and
* thus adds unnecessary traffic to other paths.
@@ -99,7 +101,13 @@ static int xen_slab_ready;
static irqreturn_t
xen_dummy_handler(int irq, void *dev_id)
{
+ return IRQ_HANDLED;
+}
+static irqreturn_t
+xen_resched_handler(int irq, void *dev_id)
+{
+ scheduler_ipi();
return IRQ_HANDLED;
}
@@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqaction = {
};
static struct irqaction xen_resched_irqaction = {
- .handler = xen_dummy_handler,
+ .handler = xen_resche...
2011 Jan 17
8
[PATCH] sched: provide scheduler_ipi() callback in response to smp_send_reschedule()
...Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ,
* it ends up to issue several memory accesses upon percpu data and
* thus adds unnecessary traffic to other paths.
@@ -99,7 +101,13 @@ static int xen_slab_ready;
static irqreturn_t
xen_dummy_handler(int irq, void *dev_id)
{
+ return IRQ_HANDLED;
+}
+static irqreturn_t
+xen_resched_handler(int irq, void *dev_id)
+{
+ scheduler_ipi();
return IRQ_HANDLED;
}
@@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqaction = {
};
static struct irqaction xen_resched_irqaction = {
- .handler = xen_dummy_handler,
+ .handler = xen_resche...
2014 Nov 06
2
[RFC PATCH] virtio-mmio: support for multiple irqs
...o_mmio_device *vm_dev = opaque;
>> + struct virtio_driver *vdrv = container_of(vm_dev->vdev.dev.driver,
>> + struct virtio_driver, driver);
>> +
>> + if (vdrv && vdrv->config_changed)
>> + vdrv->config_changed(&vm_dev->vdev);
>> + return IRQ_HANDLED;
>> +}
>> +
>> /* Notify all virtqueues on an interrupt. */
>> -static irqreturn_t vm_interrupt(int irq, void *opaque)
>> +static irqreturn_t vm_vring_interrupt(int irq, void *opaque)
>> {
>> struct virtio_mmio_device *vm_dev = opaque;
>> stru...
2014 Nov 06
2
[RFC PATCH] virtio-mmio: support for multiple irqs
...o_mmio_device *vm_dev = opaque;
>> + struct virtio_driver *vdrv = container_of(vm_dev->vdev.dev.driver,
>> + struct virtio_driver, driver);
>> +
>> + if (vdrv && vdrv->config_changed)
>> + vdrv->config_changed(&vm_dev->vdev);
>> + return IRQ_HANDLED;
>> +}
>> +
>> /* Notify all virtqueues on an interrupt. */
>> -static irqreturn_t vm_interrupt(int irq, void *opaque)
>> +static irqreturn_t vm_vring_interrupt(int irq, void *opaque)
>> {
>> struct virtio_mmio_device *vm_dev = opaque;
>> stru...
2017 Feb 03
1
[PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info
...virtio_pci_vq_info *info;
> irqreturn_t ret = IRQ_NONE;
> - unsigned long flags;
> + struct virtqueue *vq;
>
> - spin_lock_irqsave(&vp_dev->lock, flags);
> - list_for_each_entry(info, &vp_dev->virtqueues, node) {
> - if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
> + list_for_each_entry(vq, &vp_dev->vdev.vqs, list) {
> + if (vq->callback && vring_interrupt(irq, vq) == IRQ_HANDLED)
The check of vq->callback seems redundant, we will check it soon in
vring_interrupt().
Thanks
2017 Feb 03
1
[PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info
...virtio_pci_vq_info *info;
> irqreturn_t ret = IRQ_NONE;
> - unsigned long flags;
> + struct virtqueue *vq;
>
> - spin_lock_irqsave(&vp_dev->lock, flags);
> - list_for_each_entry(info, &vp_dev->virtqueues, node) {
> - if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
> + list_for_each_entry(vq, &vp_dev->vdev.vqs, list) {
> + if (vq->callback && vring_interrupt(irq, vq) == IRQ_HANDLED)
The check of vq->callback seems redundant, we will check it soon in
vring_interrupt().
Thanks
2009 Apr 27
0
[PATCH 7/8] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2009 Apr 27
0
[PATCH 7/8] virtio_pci: split up vp_interrupt
...changed(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ return IRQ_HANDLED;
+}
+
+/* Notify all virtqueues on an interrupt. */
+static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, fla...
2008 May 30
2
[PATCH 1/3] virtio: VIRTIO_F_NOTIFY_ON_EMPTY to force callback on empty
...deletions(-)
diff -r 95a02f0e0e21 drivers/virtio/virtio_ring.c
--- a/drivers/virtio/virtio_ring.c Tue May 27 12:45:17 2008 +1000
+++ b/drivers/virtio/virtio_ring.c Tue May 27 15:53:41 2008 +1000
@@ -253,13 +253,6 @@ irqreturn_t vring_interrupt(int irq, voi
if (unlikely(vq->broken))
return IRQ_HANDLED;
- /* Other side may have missed us turning off the interrupt,
- * but we should preserve disable semantic for virtio users. */
- if (unlikely(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)) {
- pr_debug("virtqueue interrupt after disable for %p\n", vq);
- return IR...
2008 May 30
2
[PATCH 1/3] virtio: VIRTIO_F_NOTIFY_ON_EMPTY to force callback on empty
...deletions(-)
diff -r 95a02f0e0e21 drivers/virtio/virtio_ring.c
--- a/drivers/virtio/virtio_ring.c Tue May 27 12:45:17 2008 +1000
+++ b/drivers/virtio/virtio_ring.c Tue May 27 15:53:41 2008 +1000
@@ -253,13 +253,6 @@ irqreturn_t vring_interrupt(int irq, voi
if (unlikely(vq->broken))
return IRQ_HANDLED;
- /* Other side may have missed us turning off the interrupt,
- * but we should preserve disable semantic for virtio users. */
- if (unlikely(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)) {
- pr_debug("virtqueue interrupt after disable for %p\n", vq);
- return IR...
2017 Feb 07
2
[PATCH 1/9] virtio_pci: remove struct virtio_pci_vq_info
...virtio_pci_vq_info *info;
> irqreturn_t ret = IRQ_NONE;
> - unsigned long flags;
> + struct virtqueue *vq;
>
> - spin_lock_irqsave(&vp_dev->lock, flags);
> - list_for_each_entry(info, &vp_dev->virtqueues, node) {
> - if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
> + list_for_each_entry(vq, &vp_dev->vdev.vqs, list) {
> + if (vq->callback && vring_interrupt(irq, vq) == IRQ_HANDLED)
> ret = IRQ_HANDLED;
> }
The check is still there.
Thanks