search for: vring_union

...nst char *name) > > > { > > > - struct vring vring; > > > - vring_init(&vring, num, pages, vring_align); > > > - return __vring_new_virtqueue(index, vring, vdev, weak_barriers, context, > > > - notify, callback, name); > > > + union vring_union vring; > > > + bool packed; > > > + > > > + packed = virtio_has_feature(vdev, VIRTIO_F_RING_PACKED); > > > + if (packed) > > > + vring_init_packed(&vring.vring_packed, num, pages, vring_align); > > > + else > > > + vring_init(&amp...

...} > EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -954,7 +1166,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -962,19 +1175,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) > {...

...} > EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -954,7 +1166,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -962,19 +1175,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) > {...

...*vq), > > const char *name) > > { > > - struct vring vring; > > - vring_init(&vring, num, pages, vring_align); > > - return __vring_new_virtqueue(index, vring, vdev, weak_barriers, context, > > - notify, callback, name); > > + union vring_union vring; > > + bool packed; > > + > > + packed = virtio_has_feature(vdev, VIRTIO_F_RING_PACKED); > > + if (packed) > > + vring_init_packed(&vring.vring_packed, num, pages, vring_align); > > + else > > + vring_init(&vring.vring_split, num, pages, vri...

...ng.num)); > > END_USE(vq); > return NULL; > @@ -957,7 +1423,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -965,19 +1432,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

...ng.num)); > > END_USE(vq); > return NULL; > @@ -957,7 +1423,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -965,19 +1432,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

...acked ? vq->vring_packed.num : + vq->vring.num)); END_USE(vq); return NULL; @@ -957,7 +1423,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) EXPORT_SYMBOL_GPL(vring_interrupt); struct virtqueue *__vring_new_virtqueue(unsigned int index, - struct vring vring, + union vring_union vring, + bool packed, struct virtio_device *vdev, bool weak_barriers, bool context, @@ -965,19 +1432,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, void (*callback)(struct virtqueue *), const char *name) { - unsigned int i; + unsigned int num, i...

Hello everyone, This RFC implements a subset of packed ring which is described at https://github.com/oasis-tcs/virtio-docs/blob/master/virtio-v1.1-packed-wd08.pdf The code was tested with DPDK vhost (testpmd/vhost-PMD) implemented by Jens at http://dpdk.org/ml/archives/dev/2018-January/089417.html Minor changes are needed for the vhost code, e.g. to kick the guest. It's not a complete

...irtqueue_detach_unused_buf_split(_vq); } EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); @@ -955,7 +1167,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) EXPORT_SYMBOL_GPL(vring_interrupt); struct virtqueue *__vring_new_virtqueue(unsigned int index, - struct vring vring, + union vring_union vring, + bool packed, struct virtio_device *vdev, bool weak_barriers, bool context, @@ -963,19 +1176,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, void (*callback)(struct virtqueue *), const char *name) { - unsigned int i; struct vring_virtqu...

...irtqueue_detach_unused_buf_split(_vq); } EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); @@ -954,7 +1166,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) EXPORT_SYMBOL_GPL(vring_interrupt); struct virtqueue *__vring_new_virtqueue(unsigned int index, - struct vring vring, + union vring_union vring, + bool packed, struct virtio_device *vdev, bool weak_barriers, bool context, @@ -962,19 +1175,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, void (*callback)(struct virtqueue *), const char *name) { - unsigned int i; struct vring_virtqu...

...END_USE(vq); > > return NULL; > > @@ -957,7 +1423,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > > - struct vring vring, > > + union vring_union vring, > > + bool packed, > > struct virtio_device *vdev, > > bool weak_barriers, > > bool context, > > @@ -965,19 +1432,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > > void (*callback)(struct virtqueue *), &g...

...; EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -955,7 +1167,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -963,19 +1176,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

...; EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -955,7 +1167,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -963,19 +1176,22 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

...int index, >>> unsigned int num, >>> @@ -1074,7 +1572,8 @@ struct virtqueue *vring_create_virtqueue( >>> void *queue = NULL; >>> dma_addr_t dma_addr; >>> size_t queue_size_in_bytes; >>> - struct vring vring; >>> + union vring_union vring; >>> + bool packed; >>> /* We assume num is a power of 2. */ >>> if (num & (num - 1)) { >>> @@ -1082,9 +1581,13 @@ struct virtqueue *vring_create_virtqueue( >>> return NULL; >>> } >>> + packed = virtio_has_fea...

...int index, >>> unsigned int num, >>> @@ -1074,7 +1572,8 @@ struct virtqueue *vring_create_virtqueue( >>> void *queue = NULL; >>> dma_addr_t dma_addr; >>> size_t queue_size_in_bytes; >>> - struct vring vring; >>> + union vring_union vring; >>> + bool packed; >>> /* We assume num is a power of 2. */ >>> if (num & (num - 1)) { >>> @@ -1082,9 +1581,13 @@ struct virtqueue *vring_create_virtqueue( >>> return NULL; >>> } >>> + packed = virtio_has_fea...

...; EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -955,7 +1596,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -963,19 +1605,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

...; EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); > > @@ -955,7 +1596,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) > EXPORT_SYMBOL_GPL(vring_interrupt); > > struct virtqueue *__vring_new_virtqueue(unsigned int index, > - struct vring vring, > + union vring_union vring, > + bool packed, > struct virtio_device *vdev, > bool weak_barriers, > bool context, > @@ -963,19 +1605,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, > void (*callback)(struct virtqueue *), > const char *name) &g...

Hello everyone, This RFC implements packed ring support in virtio driver. Some simple functional tests have been done with Jason's packed ring implementation in vhost (RFC v4): https://lkml.org/lkml/2018/5/16/501 Both of ping and netperf worked as expected w/ EVENT_IDX disabled. Ping worked as expected w/ EVENT_IDX enabled, but netperf didn't (A hack has been added in the driver to

Hello everyone, This RFC implements packed ring support in virtio driver. Some simple functional tests have been done with Jason's packed ring implementation in vhost (RFC v4): https://lkml.org/lkml/2018/5/16/501 Both of ping and netperf worked as expected w/ EVENT_IDX disabled. Ping worked as expected w/ EVENT_IDX enabled, but netperf didn't (A hack has been added in the driver to

...irtqueue_detach_unused_buf_split(_vq); } EXPORT_SYMBOL_GPL(virtqueue_detach_unused_buf); @@ -955,7 +1596,8 @@ irqreturn_t vring_interrupt(int irq, void *_vq) EXPORT_SYMBOL_GPL(vring_interrupt); struct virtqueue *__vring_new_virtqueue(unsigned int index, - struct vring vring, + union vring_union vring, + bool packed, struct virtio_device *vdev, bool weak_barriers, bool context, @@ -963,19 +1605,20 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index, void (*callback)(struct virtqueue *), const char *name) { - unsigned int i; + unsigned int num, i...