search for: kvm_del_vqs

...kdev = to_kvmdev(vdev); + int i; + + /* We must have this many virtqueues. */ + if (nvqs > kdev->desc->num_vq) + return -ENOENT; + + for (i = 0; i < nvqs; ++i) { + vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]); + if (IS_ERR(vqs[i])) + goto error; + } + return 0; + +error: + kvm_del_vqs(vdev); + return PTR_ERR(vqs[i]); +} + /* * The config ops structure as defined by virtio config */ @@ -238,8 +270,8 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .get_status = kvm_get_status, .set_status = kvm_set_status, .reset = kvm_reset, - .find_vq = kvm_find_vq, - .d...

...kdev = to_kvmdev(vdev); + int i; + + /* We must have this many virtqueues. */ + if (nvqs > kdev->desc->num_vq) + return -ENOENT; + + for (i = 0; i < nvqs; ++i) { + vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]); + if (IS_ERR(vqs[i])) + goto error; + } + return 0; + +error: + kvm_del_vqs(vdev); + return PTR_ERR(vqs[i]); +} + /* * The config ops structure as defined by virtio config */ @@ -238,8 +270,8 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .get_status = kvm_get_status, .set_status = kvm_set_status, .reset = kvm_reset, - .find_vq = kvm_find_vq, - .d...

...f --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index ba8995f..e38e5d3 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -227,6 +227,38 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs(struct virtio_device *vdev) +{ + struct virtqueue *vq, *n; + + list_for_each_entry_safe(vq, n, &vdev->vqs, list) + kvm_del_vq(vq); +} + +static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]) +...

...f --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index ba8995f..e38e5d3 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -227,6 +227,38 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs(struct virtio_device *vdev) +{ + struct virtqueue *vq, *n; + + list_for_each_entry_safe(vq, n, &vdev->vqs, list) + kvm_del_vq(vq); +} + +static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]) +...

...*kvm_devices; struct kvm_device { struct virtio_device vdev; + + /* Array of virtqueues */ + struct virtqueue **vqs; + int nvqs; + struct kvm_device_desc *desc; }; @@ -226,6 +231,61 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs(struct virtio_device *vdev) +{ + struct kvm_device *kdev = to_kvmdev(vdev); + int i; + if (!kdev->vqs) + return; + for (i = 0; i < ldev->nvqs; ++i) + kvm_del_vq(kdev->vqs[i]); + kfree(ldev->vqs); + ldev->vqs = NULL; + ldev->nvqs = 0; +} + +static int kvm_find_vqs(struct virti...

...*kvm_devices; struct kvm_device { struct virtio_device vdev; + + /* Array of virtqueues */ + struct virtqueue **vqs; + int nvqs; + struct kvm_device_desc *desc; }; @@ -226,6 +231,61 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs(struct virtio_device *vdev) +{ + struct kvm_device *kdev = to_kvmdev(vdev); + int i; + if (!kdev->vqs) + return; + for (i = 0; i < ldev->nvqs; ++i) + kvm_del_vq(kdev->vqs[i]); + kfree(ldev->vqs); + ldev->vqs = NULL; + ldev->nvqs = 0; +} + +static int kvm_find_vqs(struct virti...

...kdev = to_kvmdev(vdev); + int i; + + /* We must have this many virtqueues. */ + if (nvqs > kdev->desc->num_vq) + return -ENOENT; + + for (i = 0; i < nvqs; ++i) { + vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]); + if (IS_ERR(vqs[i])) + goto error; + } + return 0; + +error: + kvm_del_vqs(vdev); + return PTR_ERR(vqs[i]); +} + /* * The config ops structure as defined by virtio config */ @@ -238,8 +271,8 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .get_status = kvm_get_status, .set_status = kvm_set_status, .reset = kvm_reset, - .find_vq = kvm_find_vq, - .d...

...kdev = to_kvmdev(vdev); + int i; + + /* We must have this many virtqueues. */ + if (nvqs > kdev->desc->num_vq) + return -ENOENT; + + for (i = 0; i < nvqs; ++i) { + vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]); + if (IS_ERR(vqs[i])) + goto error; + } + return 0; + +error: + kvm_del_vqs(vdev); + return PTR_ERR(vqs[i]); +} + /* * The config ops structure as defined by virtio config */ @@ -238,8 +271,8 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .get_status = kvm_get_status, .set_status = kvm_set_status, .reset = kvm_reset, - .find_vq = kvm_find_vq, - .d...

...GN)); -out: - return ERR_PTR(err); -} - -static void kvm_del_vq(struct virtqueue *vq) -{ - struct kvm_vqconfig *config = vq->priv; - - vring_del_virtqueue(vq); - vmem_remove_mapping(config->address, - vring_size(config->num, - KVM_S390_VIRTIO_RING_ALIGN)); -} - -static void kvm_del_vqs(struct virtio_device *vdev) -{ - struct virtqueue *vq, *n; - - list_for_each_entry_safe(vq, n, &vdev->vqs, list) - kvm_del_vq(vq); -} - -static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, - struct virtqueue *vqs[], - vq_callback_t *callbacks[], - const char * const nam...

...GN)); -out: - return ERR_PTR(err); -} - -static void kvm_del_vq(struct virtqueue *vq) -{ - struct kvm_vqconfig *config = vq->priv; - - vring_del_virtqueue(vq); - vmem_remove_mapping(config->address, - vring_size(config->num, - KVM_S390_VIRTIO_RING_ALIGN)); -} - -static void kvm_del_vqs(struct virtio_device *vdev) -{ - struct virtqueue *vq, *n; - - list_for_each_entry_safe(vq, n, &vdev->vqs, list) - kvm_del_vq(vq); -} - -static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, - struct virtqueue *vqs[], - vq_callback_t *callbacks[], - const char * const nam...

...; }; struct virtqueue *vqs[2]; struct virtproc_info *vrp; void *bufs_va; diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c index 53fb975..1d060fd 100644 --- a/drivers/s390/virtio/kvm_virtio.c +++ b/drivers/s390/virtio/kvm_virtio.c @@ -255,7 +255,7 @@ static void kvm_del_vqs(struct virtio_device *vdev) static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char *names[]) + const char * const names[]) { struct kvm_device *kdev = to_kvmdev(vdev); int i; diff --git a/drivers/s390/vi...

...; }; struct virtqueue *vqs[2]; struct virtproc_info *vrp; void *bufs_va; diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c index 53fb975..1d060fd 100644 --- a/drivers/s390/virtio/kvm_virtio.c +++ b/drivers/s390/virtio/kvm_virtio.c @@ -255,7 +255,7 @@ static void kvm_del_vqs(struct virtio_device *vdev) static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char *names[]) + const char * const names[]) { struct kvm_device *kdev = to_kvmdev(vdev); int i; diff --git a/drivers/s390/vi...

From: Christian Borntraeger <borntraeger at de.ibm.com> This patch implements kvm guest kernel support for paravirtualized devices and contains two parts: o a basic virtio stub using virtio_ring and external interrupts and hypercalls o full hypercall implementation in kvm_para.h Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems more complicated that providing an

From: Christian Borntraeger <borntraeger at de.ibm.com> This patch implements kvm guest kernel support for paravirtualized devices and contains two parts: o a basic virtio stub using virtio_ring and external interrupts and hypercalls o full hypercall implementation in kvm_para.h Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems more complicated that providing an

...+static const char *kvm_bus_name(struct virtio_device *vdev) +{ + return ""; +} + /* * The config ops structure as defined by virtio config */ @@ -276,6 +281,7 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .reset = kvm_reset, .find_vqs = kvm_find_vqs, .del_vqs = kvm_del_vqs, + .bus_name = kvm_bus_name, }; /* diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index acc5e43..2f57380 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -361,7 +361,12 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,...

...+static const char *kvm_bus_name(struct virtio_device *vdev) +{ + return ""; +} + /* * The config ops structure as defined by virtio config */ @@ -276,6 +281,7 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .reset = kvm_reset, .find_vqs = kvm_find_vqs, .del_vqs = kvm_del_vqs, + .bus_name = kvm_bus_name, }; /* diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index acc5e43..2f57380 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -361,7 +361,12 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,...

...har *kvm_bus_name(struct virtio_device *vdev) +{ + return "Not Implemented"; +} + /* * The config ops structure as defined by virtio config */ @@ -276,6 +281,7 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .reset = kvm_reset, .find_vqs = kvm_find_vqs, .del_vqs = kvm_del_vqs, + .bus_name = kvm_bus_name, }; /* diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index acc5e43..2f57380 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -361,7 +361,12 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,...

...har *kvm_bus_name(struct virtio_device *vdev) +{ + return "Not Implemented"; +} + /* * The config ops structure as defined by virtio config */ @@ -276,6 +281,7 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { .reset = kvm_reset, .find_vqs = kvm_find_vqs, .del_vqs = kvm_del_vqs, + .bus_name = kvm_bus_name, }; /* diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index acc5e43..2f57380 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -361,7 +361,12 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,...

...gt;find_vqs(vdev, 2, vqs, vq_cbs, names, NULL); if (err) goto free_vrp; diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c index 5e5c11f..2ce0b3e 100644 --- a/drivers/s390/virtio/kvm_virtio.c +++ b/drivers/s390/virtio/kvm_virtio.c @@ -255,7 +255,8 @@ static void kvm_del_vqs(struct virtio_device *vdev) static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char * const names[]) + const char * const names[], + struct irq_affinity *desc) { struct kvm_device *kdev = to_kvmdev(vdev);...

Hi all: This series try to share MSIX irq for each tx/rx queue pair. This is done through: - introducing virtio pci channel which are group of virtqueues that sharing a single MSIX irq (Patch 1) - expose channel setting to virtio core api (Patch 2) - try to use channel setting in virtio-net (Patch 3) For the transport that does not support channel, channel paramters were simply ignored. For