search for: vp_bus_name

...f CONFIG_PM_SLEEP static int virtio_pci_freeze(struct device *dev) { diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index a6ad9ec..ac8c9d7 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -108,6 +108,8 @@ const char *vp_bus_name(struct virtio_device *vdev); */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index); + #if IS_ENABLED(CONFIG_VIRTIO_PCI_LEGACY) int virtio_pci_legacy_probe(struct virtio_pci_device *); void virtio_pci_legacy...

...t virtio_device *vdev, unsigned nvqs, return vp_find_vqs_intx(vdev, nvqs, vqs, callbacks, names, ctx); } +/* the config->calc_num_vqs() implementation */ +unsigned short vp_calc_num_vqs(unsigned short num_vqs) +{ + return min_t(unsigned short, num_possible_cpus(), num_vqs); +} + const char *vp_bus_name(struct virtio_device *vdev) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index 0227100..cc5ac80 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -134,6 +134...

...t virtio_device *vdev, unsigned nvqs, return vp_find_vqs_intx(vdev, nvqs, vqs, callbacks, names, ctx); } +/* the config->calc_num_vqs() implementation */ +unsigned short vp_calc_num_vqs(unsigned short num_vqs) +{ + return min_t(unsigned short, num_possible_cpus(), num_vqs); +} + const char *vp_bus_name(struct virtio_device *vdev) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index 0227100..cc5ac80 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -134,6 +134...

I observed that there is one msix vector for config and one shared vector for all queues in below qemu cmdline, when the num-queues for virtio-blk is more than the number of possible cpus: qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6" # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 ... ... 24: 0

I observed that there is one msix vector for config and one shared vector for all queues in below qemu cmdline, when the num-queues for virtio-blk is more than the number of possible cpus: qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6" # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 ... ... 24: 0

...del_vqs() implementation */ +void vp_del_vqs(struct virtio_device *vdev); +/* the config->find_vqs() implementation */ +int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]); +const char *vp_bus_name(struct virtio_device *vdev); + +/* Setup the affinity for a virtqueue: + * - force the affinity for per vq vector + * - OR over all affinities for shared MSI + * - ignore the affinity request if we're using INTX + */ +int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +void virtio_pci_relea...

...del_vqs() implementation */ +void vp_del_vqs(struct virtio_device *vdev); +/* the config->find_vqs() implementation */ +int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]); +const char *vp_bus_name(struct virtio_device *vdev); + +/* Setup the affinity for a virtqueue: + * - force the affinity for per vq vector + * - OR over all affinities for shared MSI + * - ignore the affinity request if we're using INTX + */ +int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +void virtio_pci_relea...

...del_vqs() implementation */ +void vp_del_vqs(struct virtio_device *vdev); +/* the config->find_vqs() implementation */ +int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]); +const char *vp_bus_name(struct virtio_device *vdev); + +/* Setup the affinity for a virtqueue: + * - force the affinity for per vq vector + * - OR over all affinities for shared MSI + * - ignore the affinity request if we're using INTX + */ +int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +void virtio_pci_relea...

...del_vqs() implementation */ +void vp_del_vqs(struct virtio_device *vdev); +/* the config->find_vqs() implementation */ +int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]); +const char *vp_bus_name(struct virtio_device *vdev); + +/* Setup the affinity for a virtqueue: + * - force the affinity for per vq vector + * - OR over all affinities for shared MSI + * - ignore the affinity request if we're using INTX + */ +int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +void virtio_pci_relea...

...+ region->len = len; + region->addr = (u64) phys_addr + offset; + + return true; +} + static const struct virtio_config_ops virtio_pci_config_nodev_ops = { .get = NULL, .set = NULL, @@ -458,6 +551,7 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = { .bus_name = vp_bus_name, .set_vq_affinity = vp_set_vq_affinity, .get_vq_affinity = vp_get_vq_affinity, + .get_shm_region = vp_get_shm_region, }; static const struct virtio_config_ops virtio_pci_config_ops = { @@ -474,6 +568,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .bus_name = vp_bus_...

...f --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 79a31e5..764ec05 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -580,6 +580,13 @@ static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, false, false); } +static const char *vp_bus_name(struct virtio_device *vdev) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + return pci_name(vp_dev->pci_dev); +} + static struct virtio_config_ops virtio_pci_config_ops = { .get = vp_get, .set = vp_set, @@ -590,6 +597,7 @@ static struct virtio_config_ops virtio_pci_config_...

...f --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 79a31e5..764ec05 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -580,6 +580,13 @@ static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, false, false); } +static const char *vp_bus_name(struct virtio_device *vdev) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + return pci_name(vp_dev->pci_dev); +} + static struct virtio_config_ops virtio_pci_config_ops = { .get = vp_get, .set = vp_set, @@ -590,6 +597,7 @@ static struct virtio_config_ops virtio_pci_config_...

...f --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 79a31e5..764ec05 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -580,6 +580,13 @@ static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, false, false); } +static const char *vp_bus_name(struct virtio_device *vdev) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + return pci_name(vp_dev->pci_dev); +} + static struct virtio_config_ops virtio_pci_config_ops = { .get = vp_get, .set = vp_set, @@ -590,6 +597,7 @@ static struct virtio_config_ops virtio_pci_config_...

...f --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 79a31e5..764ec05 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -580,6 +580,13 @@ static int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs, false, false); } +static const char *vp_bus_name(struct virtio_device *vdev) +{ + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + return pci_name(vp_dev->pci_dev); +} + static struct virtio_config_ops virtio_pci_config_ops = { .get = vp_get, .set = vp_set, @@ -590,6 +597,7 @@ static struct virtio_config_ops virtio_pci_config_...

Hi Michael, hi Jason, This patches applies a few cleanups to the virtio PCI interrupt handling code, and then converts the virtio PCI code to use the automatic MSI-X vectors spreading, as well as using the information in virtio-blk and virtio-scsi to automatically align the blk-mq queues to the MSI-X vectors. Changes since V1: - dropped the patches already merged for 4.10-rc - new patch to

Hi Michael, hi Jason, This patches applies a few cleanups to the virtio PCI interrupt handling code, and then converts the virtio PCI code to use the automatic MSI-X vectors spreading, as well as using the information in virtio-blk and virtio-scsi to automatically align the blk-mq queues to the MSI-X vectors. Changes since V1: - dropped the patches already merged for 4.10-rc - new patch to

...cy.c | 9 +++++++++ 3 files changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index 1584833..24956c5 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -146,7 +146,6 @@ const char *vp_bus_name(struct virtio_device *vdev); * - ignore the affinity request if we're using INTX */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); -void virtio_pci_release_dev(struct device *); int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); diff --...

...| 3 ++- 3 files changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index d391805..28ee4e5 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -147,8 +147,18 @@ const char *vp_bus_name(struct virtio_device *vdev); */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +#if IS_ENABLED(CONFIG_VIRTIO_PCI_LEGACY) int virtio_pci_legacy_probe(struct virtio_pci_device *); void virtio_pci_legacy_remove(struct virtio_pci_device *); +#else +static inline int virtio_pci_legacy_pro...

...cy.c | 9 +++++++++ 3 files changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index 1584833..24956c5 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -146,7 +146,6 @@ const char *vp_bus_name(struct virtio_device *vdev); * - ignore the affinity request if we're using INTX */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); -void virtio_pci_release_dev(struct device *); int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); diff --...

...| 3 ++- 3 files changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index d391805..28ee4e5 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -147,8 +147,18 @@ const char *vp_bus_name(struct virtio_device *vdev); */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); +#if IS_ENABLED(CONFIG_VIRTIO_PCI_LEGACY) int virtio_pci_legacy_probe(struct virtio_pci_device *); void virtio_pci_legacy_remove(struct virtio_pci_device *); +#else +static inline int virtio_pci_legacy_pro...