* [PATCH v2 1/5] virtio: add support for configure interrupt
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
@ 2021-01-26 7:03 ` Cindy Lu
2021-01-26 7:03 ` [PATCH v2 2/5] vhost_net: enable configure interrupt when vhost_net start Cindy Lu
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Cindy Lu @ 2021-01-26 7:03 UTC (permalink / raw)
To: mst, jasowang, qemu-devel; +Cc: lulu
Add configure notifier and virtio_set_config_notifier_fd_handler
in virtio
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/virtio.c | 26 ++++++++++++++++++++++++++
include/hw/virtio/virtio-bus.h | 2 ++
include/hw/virtio/virtio.h | 6 ++++++
3 files changed, 34 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index ceb58fda6c..25e164cf8a 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -3502,6 +3502,16 @@ static void virtio_queue_guest_notifier_read(EventNotifier *n)
}
}
+static void virtio_config_read(EventNotifier *n)
+{
+ VirtIODevice *vdev = container_of(n, VirtIODevice, config_notifier);
+ if (!vdev->use_config_notifier) {
+ return;
+ }
+ if (event_notifier_test_and_clear(n)) {
+ virtio_notify_config(vdev);
+ }
+}
void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
bool with_irqfd)
{
@@ -3518,6 +3528,17 @@ void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
}
}
+void virtio_set_config_notifier_fd_handler(VirtIODevice *vdev, bool assign,
+ bool with_irqfd)
+{
+ if (assign && !with_irqfd) {
+ event_notifier_set_handler(&vdev->config_notifier,
+ virtio_config_read);
+ } else {
+ event_notifier_set_handler(&vdev->config_notifier, NULL);
+ }
+}
+
EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq)
{
return &vq->guest_notifier;
@@ -3591,6 +3612,11 @@ EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq)
return &vq->host_notifier;
}
+EventNotifier *virtio_get_config_notifier(VirtIODevice *vdev)
+{
+ return &vdev->config_notifier;
+
+}
void virtio_queue_set_host_notifier_enabled(VirtQueue *vq, bool enabled)
{
vq->host_notifier_enabled = enabled;
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index ef8abe49c5..97e13ec484 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -93,6 +93,8 @@ struct VirtioBusClass {
*/
bool has_variable_vring_alignment;
AddressSpace *(*get_dma_as)(DeviceState *d);
+ int (*set_config_notifiers)(DeviceState *d, bool assign);
+
};
struct VirtioBusState {
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index b7ece7a6a8..79f2f78625 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -108,6 +108,8 @@ struct VirtIODevice
bool use_guest_notifier_mask;
AddressSpace *dma_as;
QLIST_HEAD(, VirtQueue) *vector_queues;
+ EventNotifier config_notifier;
+ bool use_config_notifier;
};
struct VirtioDeviceClass {
@@ -310,11 +312,15 @@ uint16_t virtio_get_queue_index(VirtQueue *vq);
EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq);
void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
bool with_irqfd);
+void virtio_set_config_notifier_fd_handler(VirtIODevice *vdev, bool assign,
+ bool with_irqfd);
+
int virtio_device_start_ioeventfd(VirtIODevice *vdev);
int virtio_device_grab_ioeventfd(VirtIODevice *vdev);
void virtio_device_release_ioeventfd(VirtIODevice *vdev);
bool virtio_device_ioeventfd_enabled(VirtIODevice *vdev);
EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq);
+EventNotifier *virtio_get_config_notifier(VirtIODevice *vdev);
void virtio_queue_set_host_notifier_enabled(VirtQueue *vq, bool enabled);
void virtio_queue_host_notifier_read(EventNotifier *n);
void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
--
2.21.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 2/5] vhost_net: enable configure interrupt when vhost_net start
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
2021-01-26 7:03 ` [PATCH v2 1/5] virtio: " Cindy Lu
@ 2021-01-26 7:03 ` Cindy Lu
2021-01-26 7:03 ` [PATCH v2 3/5] virtio-pci: add support for configure interrupt Cindy Lu
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Cindy Lu @ 2021-01-26 7:03 UTC (permalink / raw)
To: mst, jasowang, qemu-devel; +Cc: lulu
While peer is vhost vdpa, setup the configure interrupt function
vhost_net_start and release the resource when vhost_net_stop
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/net/vhost_net.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 24d555e764..0660da474a 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -345,6 +345,15 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
error_report("Error binding guest notifier: %d", -r);
goto err;
}
+ if (ncs->peer && ncs->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
+ if (k->set_config_notifiers) {
+ r = k->set_config_notifiers(qbus->parent, true);
+ if (r < 0) {
+ error_report("Error binding config notifier: %d", -r);
+ goto err;
+ }
+ }
+ }
for (i = 0; i < total_queues; i++) {
peer = qemu_get_peer(ncs, i);
@@ -391,7 +400,15 @@ void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
for (i = 0; i < total_queues; i++) {
vhost_net_stop_one(get_vhost_net(ncs[i].peer), dev);
}
-
+ if (ncs->peer && ncs->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
+ if (k->set_config_notifiers) {
+ r = k->set_config_notifiers(qbus->parent, false);
+ if (r < 0) {
+ error_report("Error unbinding config notifier: %d", -r);
+ }
+ assert(r >= 0);
+ }
+ }
r = k->set_guest_notifiers(qbus->parent, total_queues * 2, false);
if (r < 0) {
fprintf(stderr, "vhost guest notifier cleanup failed: %d\n", r);
--
2.21.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 3/5] virtio-pci: add support for configure interrupt
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
2021-01-26 7:03 ` [PATCH v2 1/5] virtio: " Cindy Lu
2021-01-26 7:03 ` [PATCH v2 2/5] vhost_net: enable configure interrupt when vhost_net start Cindy Lu
@ 2021-01-26 7:03 ` Cindy Lu
2021-01-26 7:03 ` [PATCH v2 4/5] virtio-mmio: " Cindy Lu
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Cindy Lu @ 2021-01-26 7:03 UTC (permalink / raw)
To: mst, jasowang, qemu-devel; +Cc: lulu
Add support for configure interrupt, use kvm_irqfd_assign and set the
gsi to kernel. When the configure notifier was eventfd_signal by host
kernel, this will finally inject an msix interrupt to guest
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/virtio-pci.c | 92 ++++++++++++++++++++++++++++++++++--------
1 file changed, 75 insertions(+), 17 deletions(-)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 36524a5728..8e192600b8 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -664,7 +664,6 @@ static uint32_t virtio_read_config(PCIDevice *pci_dev,
}
static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
unsigned int vector)
{
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
@@ -691,23 +690,17 @@ static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy,
}
static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
+ EventNotifier *n,
unsigned int vector)
{
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_get_queue(vdev, queue_no);
- EventNotifier *n = virtio_queue_get_guest_notifier(vq);
return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, n, NULL, irqfd->virq);
}
static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
+ EventNotifier *n ,
unsigned int vector)
{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_get_queue(vdev, queue_no);
- EventNotifier *n = virtio_queue_get_guest_notifier(vq);
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
int ret;
@@ -722,7 +715,8 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
unsigned int vector;
int ret, queue_no;
-
+ VirtQueue *vq;
+ EventNotifier *n;
for (queue_no = 0; queue_no < nvqs; queue_no++) {
if (!virtio_queue_get_num(vdev, queue_no)) {
break;
@@ -731,7 +725,7 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
if (vector >= msix_nr_vectors_allocated(dev)) {
continue;
}
- ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector);
+ ret = kvm_virtio_pci_vq_vector_use(proxy, vector);
if (ret < 0) {
goto undo;
}
@@ -739,7 +733,9 @@ static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
* Otherwise, delay until unmasked in the frontend.
*/
if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector);
+ vq = virtio_get_queue(vdev, queue_no);
+ n = virtio_queue_get_guest_notifier(vq);
+ ret = kvm_virtio_pci_irqfd_use(proxy, n, vector);
if (ret < 0) {
kvm_virtio_pci_vq_vector_release(proxy, vector);
goto undo;
@@ -755,13 +751,69 @@ undo:
continue;
}
if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
+ vq = virtio_get_queue(vdev, queue_no);
+ n = virtio_queue_get_guest_notifier(vq);
+ kvm_virtio_pci_irqfd_release(proxy, n, vector);
}
kvm_virtio_pci_vq_vector_release(proxy, vector);
}
return ret;
}
+static int kvm_virtio_pci_vector_config_use(VirtIOPCIProxy *proxy)
+{
+
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+ unsigned int vector;
+ int ret;
+ EventNotifier *n = virtio_get_config_notifier(vdev);
+
+ vector = vdev->config_vector ;
+ ret = kvm_virtio_pci_vq_vector_use(proxy, vector);
+ if (ret < 0) {
+ goto undo;
+ }
+ ret = kvm_virtio_pci_irqfd_use(proxy, n, vector);
+ if (ret < 0) {
+ goto undo;
+ }
+ return 0;
+undo:
+ kvm_virtio_pci_irqfd_release(proxy, n, vector);
+ return ret;
+}
+static void kvm_virtio_pci_vector_config_release(VirtIOPCIProxy *proxy)
+{
+ PCIDevice *dev = &proxy->pci_dev;
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+ unsigned int vector;
+ EventNotifier *n = virtio_get_config_notifier(vdev);
+ vector = vdev->config_vector ;
+ if (vector >= msix_nr_vectors_allocated(dev)) {
+ return;
+ }
+ kvm_virtio_pci_irqfd_release(proxy, n, vector);
+ kvm_virtio_pci_vq_vector_release(proxy, vector);
+}
+
+static int virtio_pci_set_config_notifier(DeviceState *d, bool assign)
+{
+ VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+ EventNotifier *notifier = virtio_get_config_notifier(vdev);
+ int r = 0;
+ if (assign) {
+ r = event_notifier_init(notifier, 0);
+ virtio_set_config_notifier_fd_handler(vdev, true, true);
+ kvm_virtio_pci_vector_config_use(proxy);
+ } else {
+ virtio_set_config_notifier_fd_handler(vdev, false, true);
+ kvm_virtio_pci_vector_config_release(proxy);
+ event_notifier_cleanup(notifier);
+ }
+ return r;
+}
+
static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
{
PCIDevice *dev = &proxy->pci_dev;
@@ -769,7 +821,8 @@ static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
unsigned int vector;
int queue_no;
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
-
+ VirtQueue *vq;
+ EventNotifier *n;
for (queue_no = 0; queue_no < nvqs; queue_no++) {
if (!virtio_queue_get_num(vdev, queue_no)) {
break;
@@ -782,7 +835,9 @@ static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
* Otherwise, it was cleaned when masked in the frontend.
*/
if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
+ vq = virtio_get_queue(vdev, queue_no);
+ n = virtio_queue_get_guest_notifier(vq);
+ kvm_virtio_pci_irqfd_release(proxy, n, vector);
}
kvm_virtio_pci_vq_vector_release(proxy, vector);
}
@@ -823,7 +878,7 @@ static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy,
event_notifier_set(n);
}
} else {
- ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector);
+ ret = kvm_virtio_pci_irqfd_use(proxy, n, vector);
}
return ret;
}
@@ -835,13 +890,15 @@ static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy,
VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
+ VirtQueue *vq = virtio_get_queue(vdev, queue_no);
+ EventNotifier *n = virtio_queue_get_guest_notifier(vq);
/* If guest supports masking, keep irqfd but mask it.
* Otherwise, clean it up now.
*/
if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
k->guest_notifier_mask(vdev, queue_no, true);
} else {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
+ kvm_virtio_pci_irqfd_release(proxy, n, vector);
}
}
@@ -2137,6 +2194,7 @@ static void virtio_pci_bus_class_init(ObjectClass *klass, void *data)
k->ioeventfd_assign = virtio_pci_ioeventfd_assign;
k->get_dma_as = virtio_pci_get_dma_as;
k->queue_enabled = virtio_pci_queue_enabled;
+ k->set_config_notifiers = virtio_pci_set_config_notifier;
}
static const TypeInfo virtio_pci_bus_info = {
--
2.21.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 4/5] virtio-mmio: add support for configure interrupt
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
` (2 preceding siblings ...)
2021-01-26 7:03 ` [PATCH v2 3/5] virtio-pci: add support for configure interrupt Cindy Lu
@ 2021-01-26 7:03 ` Cindy Lu
2021-01-26 7:03 ` [PATCH v2 5/5] vhost-vdpa: add callback function " Cindy Lu
2021-01-26 7:18 ` [PATCH v2 0/5] vhost-vdpa: add support " no-reply
5 siblings, 0 replies; 7+ messages in thread
From: Cindy Lu @ 2021-01-26 7:03 UTC (permalink / raw)
To: mst, jasowang, qemu-devel; +Cc: lulu
add configure interrupt support for virtio-mmio bus. This
interrupt will working while backend is vhost-vdpa
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/virtio-mmio.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index e1b5c3b81e..d580f1ea9a 100644
--- a/hw/virtio/virtio-mmio.c
+++ b/hw/virtio/virtio-mmio.c
@@ -666,6 +666,21 @@ assign_error:
return r;
}
+static int virtio_mmio_set_config_notifier(DeviceState *d, bool assign)
+{
+ VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
+ VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
+ EventNotifier *notifier = virtio_get_config_notifier(vdev);
+ int r = 0;
+ if (assign) {
+ r = event_notifier_init(notifier, 0);
+ virtio_set_config_notifier_fd_handler(vdev, true, false);
+ } else {
+ virtio_set_config_notifier_fd_handler(vdev, false, false);
+ event_notifier_cleanup(notifier);
+ }
+ return r;
+}
static void virtio_mmio_pre_plugged(DeviceState *d, Error **errp)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
@@ -780,6 +795,7 @@ static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data)
k->ioeventfd_assign = virtio_mmio_ioeventfd_assign;
k->pre_plugged = virtio_mmio_pre_plugged;
k->has_variable_vring_alignment = true;
+ k->set_config_notifiers = virtio_mmio_set_config_notifier;
bus_class->max_dev = 1;
bus_class->get_dev_path = virtio_mmio_bus_get_dev_path;
}
--
2.21.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 5/5] vhost-vdpa: add callback function for configure interrupt
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
` (3 preceding siblings ...)
2021-01-26 7:03 ` [PATCH v2 4/5] virtio-mmio: " Cindy Lu
@ 2021-01-26 7:03 ` Cindy Lu
2021-01-26 7:18 ` [PATCH v2 0/5] vhost-vdpa: add support " no-reply
5 siblings, 0 replies; 7+ messages in thread
From: Cindy Lu @ 2021-01-26 7:03 UTC (permalink / raw)
To: mst, jasowang, qemu-devel; +Cc: lulu
Add call back function for configure interrupt.
Set the notifier's fd to the kernel driver when vdpa start.
also set -1 while vdpa stop. then the kernel will release
the related resource
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
hw/virtio/trace-events | 2 ++
hw/virtio/vhost-vdpa.c | 37 ++++++++++++++++++++++++++++++-
include/hw/virtio/vhost-backend.h | 4 ++++
3 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
index 2060a144a2..6710835b46 100644
--- a/hw/virtio/trace-events
+++ b/hw/virtio/trace-events
@@ -52,6 +52,8 @@ vhost_vdpa_set_vring_call(void *dev, unsigned int index, int fd) "dev: %p index:
vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRIx64
vhost_vdpa_set_owner(void *dev) "dev: %p"
vhost_vdpa_vq_get_addr(void *dev, void *vq, uint64_t desc_user_addr, uint64_t avail_user_addr, uint64_t used_user_addr) "dev: %p vq: %p desc_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" used_user_addr: 0x%"PRIx64
+vhost_vdpa_set_config_call(void *dev, int *fd)"dev: %p fd: %p"
+
# virtio.c
virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u"
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 01d2101d09..cf957fa7a3 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -467,20 +467,47 @@ static int vhost_vdpa_get_config(struct vhost_dev *dev, uint8_t *config,
}
return ret;
}
+static void vhost_vdpa_config_notify_start(struct vhost_dev *dev,
+ struct VirtIODevice *vdev, bool start)
+{
+ int fd, r;
+ if (start) {
+ fd = event_notifier_get_fd(&vdev->config_notifier);
+ vdev->use_config_notifier = true;
+ } else {
+ fd = -1;
+ vdev->use_config_notifier = false;
+ }
+ /*set the fd call back to vdpa driver*/
+ r = dev->vhost_ops->vhost_set_config_call(dev, &fd);
+ if (r) {
+ vdev->use_config_notifier = false;
+ info_report("vhost_vdpa_config_notify not started!");
+ }
+ /*active the config_notifier when vdev->use_config_notifier is true*/
+ if ((vdev->use_config_notifier) && (start)){
+ event_notifier_set(&vdev->config_notifier);
+ }
+ return;
+}
static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
{
struct vhost_vdpa *v = dev->opaque;
trace_vhost_vdpa_dev_start(dev, started);
+ VirtIODevice *vdev = dev->vdev;
+
if (started) {
uint8_t status = 0;
memory_listener_register(&v->listener, &address_space_memory);
vhost_vdpa_set_vring_ready(dev);
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK);
vhost_vdpa_call(dev, VHOST_VDPA_GET_STATUS, &status);
-
+ /*set the configure interrupt call back*/
+ vhost_vdpa_config_notify_start(dev, vdev, true);
return !(status & VIRTIO_CONFIG_S_DRIVER_OK);
} else {
+ vhost_vdpa_config_notify_start(dev, vdev, false);
vhost_vdpa_reset_device(dev);
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE |
VIRTIO_CONFIG_S_DRIVER);
@@ -546,6 +573,13 @@ static int vhost_vdpa_set_vring_call(struct vhost_dev *dev,
return vhost_vdpa_call(dev, VHOST_SET_VRING_CALL, file);
}
+static int vhost_vdpa_set_config_call(struct vhost_dev *dev,
+ int *fd)
+{
+ trace_vhost_vdpa_set_config_call(dev, fd);
+ return vhost_vdpa_call(dev, VHOST_VDPA_SET_CONFIG_CALL, fd);
+}
+
static int vhost_vdpa_get_features(struct vhost_dev *dev,
uint64_t *features)
{
@@ -611,4 +645,5 @@ const VhostOps vdpa_ops = {
.vhost_get_device_id = vhost_vdpa_get_device_id,
.vhost_vq_get_addr = vhost_vdpa_vq_get_addr,
.vhost_force_iommu = vhost_vdpa_force_iommu,
+ .vhost_set_config_call = vhost_vdpa_set_config_call,
};
diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index 8a6f8e2a7a..1a2fee8994 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -125,6 +125,9 @@ typedef int (*vhost_get_device_id_op)(struct vhost_dev *dev, uint32_t *dev_id);
typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev);
+typedef int (*vhost_set_config_call_op)(struct vhost_dev *dev,
+ int *fd);
+
typedef struct VhostOps {
VhostBackendType backend_type;
vhost_backend_init vhost_backend_init;
@@ -170,6 +173,7 @@ typedef struct VhostOps {
vhost_vq_get_addr_op vhost_vq_get_addr;
vhost_get_device_id_op vhost_get_device_id;
vhost_force_iommu_op vhost_force_iommu;
+ vhost_set_config_call_op vhost_set_config_call;
} VhostOps;
extern const VhostOps user_ops;
--
2.21.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt
2021-01-26 7:03 [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt Cindy Lu
` (4 preceding siblings ...)
2021-01-26 7:03 ` [PATCH v2 5/5] vhost-vdpa: add callback function " Cindy Lu
@ 2021-01-26 7:18 ` no-reply
5 siblings, 0 replies; 7+ messages in thread
From: no-reply @ 2021-01-26 7:18 UTC (permalink / raw)
To: lulu; +Cc: jasowang, qemu-devel, lulu, mst
Patchew URL: https://patchew.org/QEMU/20210126070351.28575-1-lulu@redhat.com/
Hi,
This series seems to have some coding style problems. See output below for
more information:
Type: series
Message-id: 20210126070351.28575-1-lulu@redhat.com
Subject: [PATCH v2 0/5] vhost-vdpa: add support for configure interrupt
=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
* [new tag] patchew/20210126070351.28575-1-lulu@redhat.com -> patchew/20210126070351.28575-1-lulu@redhat.com
Switched to a new branch 'test'
ad89485 vhost-vdpa: add callback function for configure interrupt
5418ebe virtio-mmio: add support for configure interrupt
25554b9 virtio-pci: add support for configure interrupt
7181d5a vhost_net: enable configure interrupt when vhost_net start
8912097 virtio: add support for configure interrupt
=== OUTPUT BEGIN ===
1/5 Checking commit 8912097b7139 (virtio: add support for configure interrupt)
2/5 Checking commit 7181d5abe22f (vhost_net: enable configure interrupt when vhost_net start)
3/5 Checking commit 25554b9fa73a (virtio-pci: add support for configure interrupt)
4/5 Checking commit 5418ebee9696 (virtio-mmio: add support for configure interrupt)
5/5 Checking commit ad89485a096a (vhost-vdpa: add callback function for configure interrupt)
ERROR: space required before the open brace '{'
#59: FILE: hw/virtio/vhost-vdpa.c:488:
+ if ((vdev->use_config_notifier) && (start)){
total: 1 errors, 0 warnings, 90 lines checked
Patch 5/5 has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
=== OUTPUT END ===
Test command exited with code: 1
The full log is available at
http://patchew.org/logs/20210126070351.28575-1-lulu@redhat.com/testing.checkpatch/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com
^ permalink raw reply [flat|nested] 7+ messages in thread