search for: vring_desc_st

...int i; > + struct vring_virtqueue *vq; > > - /* We assume num is a power of 2. */ > - if (num & (num - 1)) { > - dev_warn(&vdev->dev, "Bad virtqueue length %u\n", num); > - return NULL; > - } > - > - vq = kmalloc(sizeof(*vq) + num * sizeof(struct vring_desc_state), > + vq = kmalloc(sizeof(*vq) + vring.num * sizeof(struct vring_desc_state), > GFP_KERNEL); > if (!vq) > return NULL; > > - vring_init(&vq->vring, num, pages, vring_align); > + vq->vring = vring; > vq->vq.callback = callback; > vq->v...

...int i; > + struct vring_virtqueue *vq; > > - /* We assume num is a power of 2. */ > - if (num & (num - 1)) { > - dev_warn(&vdev->dev, "Bad virtqueue length %u\n", num); > - return NULL; > - } > - > - vq = kmalloc(sizeof(*vq) + num * sizeof(struct vring_desc_state), > + vq = kmalloc(sizeof(*vq) + vring.num * sizeof(struct vring_desc_state), > GFP_KERNEL); > if (!vq) > return NULL; > > - vring_init(&vq->vring, num, pages, vring_align); > + vq->vring = vring; > vq->vq.callback = callback; > vq->v...

...#include <linux/hrtimer.h> > #include <linux/kmemleak.h> > +#include <linux/dma-mapping.h> > > #ifdef DEBUG > /* For development, we want to crash whenever the ring is screwed. */ > @@ -54,6 +55,12 @@ > #define END_USE(vq) > #endif > > +struct vring_desc_state > +{ > + void *data; /* Data for callback. */ > + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > +}; > + > struct vring_virtqueue > { > struct virtqueue vq; > @@ -93,12 +100,45 @@ struct vring_virtqueue > ktime_t last_add_time; > #en...

...#include <linux/hrtimer.h> > #include <linux/kmemleak.h> > +#include <linux/dma-mapping.h> > > #ifdef DEBUG > /* For development, we want to crash whenever the ring is screwed. */ > @@ -54,6 +55,12 @@ > #define END_USE(vq) > #endif > > +struct vring_desc_state > +{ > + void *data; /* Data for callback. */ > + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > +}; > + > struct vring_virtqueue > { > struct virtqueue vq; > @@ -93,12 +100,45 @@ struct vring_virtqueue > ktime_t last_add_time; > #en...

...) { - struct vring_virtqueue *vq; unsigned int i; + struct vring_virtqueue *vq; - /* We assume num is a power of 2. */ - if (num & (num - 1)) { - dev_warn(&vdev->dev, "Bad virtqueue length %u\n", num); - return NULL; - } - - vq = kmalloc(sizeof(*vq) + num * sizeof(struct vring_desc_state), + vq = kmalloc(sizeof(*vq) + vring.num * sizeof(struct vring_desc_state), GFP_KERNEL); if (!vq) return NULL; - vring_init(&vq->vring, num, pages, vring_align); + vq->vring = vring; vq->vq.callback = callback; vq->vq.vdev = vdev; vq->vq.name = name; - vq-...

...-24,6 +24,7 @@ #include <linux/module.h> #include <linux/hrtimer.h> #include <linux/kmemleak.h> +#include <linux/dma-mapping.h> #ifdef DEBUG /* For development, we want to crash whenever the ring is screwed. */ @@ -54,6 +55,12 @@ #define END_USE(vq) #endif +struct vring_desc_state +{ + void *data; /* Data for callback. */ + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ +}; + struct vring_virtqueue { struct virtqueue vq; @@ -93,12 +100,45 @@ struct vring_virtqueue ktime_t last_add_time; #endif - /* Tokens for callbacks. */ - void *data[]; + /...

...ude <linux/kmemleak.h> > > +#include <linux/dma-mapping.h> > > > > #ifdef DEBUG > > /* For development, we want to crash whenever the ring is screwed. */ > > @@ -54,6 +55,12 @@ > > #define END_USE(vq) > > #endif > > > > +struct vring_desc_state > > +{ > > + void *data; /* Data for callback. */ > > + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > > +}; > > + > > struct vring_virtqueue > > { > > struct virtqueue vq; > > @@ -93,12 +100,45 @@ struct vring_virt...

...-24,6 +24,7 @@ #include <linux/module.h> #include <linux/hrtimer.h> #include <linux/kmemleak.h> +#include <linux/dma-mapping.h> #ifdef DEBUG /* For development, we want to crash whenever the ring is screwed. */ @@ -54,6 +55,11 @@ #define END_USE(vq) #endif +struct vring_desc_state { + void *data; /* Data for callback. */ + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ +}; + struct vring_virtqueue { struct virtqueue vq; @@ -98,8 +104,8 @@ struct vring_virtqueue { ktime_t last_add_time; #endif - /* Tokens for callbacks. */ - void *data[]; + /...

...> 2 files changed, 546 insertions(+), 263 deletions(-) > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > index 71458f493cf8..f5ef5f42a7cf 100644 > --- a/drivers/virtio/virtio_ring.c > +++ b/drivers/virtio/virtio_ring.c > @@ -61,11 +61,15 @@ struct vring_desc_state { > struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > }; > > +struct vring_desc_state_packed { > + int next; /* The next desc state. */ > +}; > + > struct vring_virtqueue { > struct virtqueue vq; > > - /* Actual memory layout f...

...> 2 files changed, 546 insertions(+), 263 deletions(-) > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > index 71458f493cf8..f5ef5f42a7cf 100644 > --- a/drivers/virtio/virtio_ring.c > +++ b/drivers/virtio/virtio_ring.c > @@ -61,11 +61,15 @@ struct vring_desc_state { > struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > }; > > +struct vring_desc_state_packed { > + int next; /* The next desc state. */ > +}; > + > struct vring_virtqueue { > struct virtqueue vq; > > - /* Actual memory layout f...

...lude/linux/virtio_ring.h | 8 +- 2 files changed, 546 insertions(+), 263 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 71458f493cf8..f5ef5f42a7cf 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -61,11 +61,15 @@ struct vring_desc_state { struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ }; +struct vring_desc_state_packed { + int next; /* The next desc state. */ +}; + struct vring_virtqueue { struct virtqueue vq; - /* Actual memory layout for this queue */ - struct vring vring; + /* Is this a packed...

...lude/linux/virtio_ring.h | 8 +- 2 files changed, 546 insertions(+), 263 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 814b395007b2..c4f8abc7445a 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -60,11 +60,15 @@ struct vring_desc_state { struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ }; +struct vring_desc_state_packed { + int next; /* The next desc state. */ +}; + struct vring_virtqueue { struct virtqueue vq; - /* Actual memory layout for this queue */ - struct vring vring; + /* Is this a packed...

...include <linux/hrtimer.h> > #include <linux/kmemleak.h> > +#include <linux/dma-mapping.h> > > #ifdef DEBUG > /* For development, we want to crash whenever the ring is screwed. */ > @@ -54,6 +55,11 @@ > #define END_USE(vq) > #endif > > +struct vring_desc_state { > + void *data; /* Data for callback. */ > + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > +}; > + > struct vring_virtqueue { > struct virtqueue vq; > > @@ -98,8 +104,8 @@ struct vring_virtqueue { > ktime_t last_add_time; > #endif &...

...include <linux/hrtimer.h> > #include <linux/kmemleak.h> > +#include <linux/dma-mapping.h> > > #ifdef DEBUG > /* For development, we want to crash whenever the ring is screwed. */ > @@ -54,6 +55,11 @@ > #define END_USE(vq) > #endif > > +struct vring_desc_state { > + void *data; /* Data for callback. */ > + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > +}; > + > struct vring_virtqueue { > struct virtqueue vq; > > @@ -98,8 +104,8 @@ struct vring_virtqueue { > ktime_t last_add_time; > #endif &...

...lt;linux/module.h> #include <linux/hrtimer.h> #include <linux/kmemleak.h> +#include <linux/dma-mapping.h> #ifdef DEBUG /* For development, we want to crash whenever the ring is screwed. */ @@ -54,7 +55,14 @@ #define END_USE(vq) #endif -struct vring_virtqueue { +struct vring_desc_state +{ + void *data; /* Data for callback. */ + struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ +}; + +struct vring_virtqueue +{ struct virtqueue vq; /* Actual memory layout for this queue */ @@ -92,12 +100,71 @@ struct vring_virtqueue { ktime_t last_add_time; #endif -...

This switches virtio to use the DMA API on Xen and if requested by module option. This fixes virtio on Xen, and it should break anything because it's off by default on everything except Xen PV on x86. To the Xen people: is this okay? If it doesn't work on other Xen variants (PVH? HVM?), can you submit follow-up patches to fix it? To everyone else: we've waffled on this for way too

This switches virtio to use the DMA API on Xen and if requested by module option. This fixes virtio on Xen, and it should break anything because it's off by default on everything except Xen PV on x86. To the Xen people: is this okay? If it doesn't work on other Xen variants (PVH? HVM?), can you submit follow-up patches to fix it? To everyone else: we've waffled on this for way too

...changed, 618 insertions(+), 89 deletions(-) > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > index eb30f3e09a47..393778a2f809 100644 > --- a/drivers/virtio/virtio_ring.c > +++ b/drivers/virtio/virtio_ring.c > @@ -58,14 +58,14 @@ > > struct vring_desc_state { > void *data; /* Data for callback. */ > - struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > + void *indir_desc; /* Indirect descriptor, if any. */ > + int num; /* Descriptor list length. */ > }; > > struct vring_virtqueue { > struct...

...changed, 618 insertions(+), 89 deletions(-) > > diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c > index eb30f3e09a47..393778a2f809 100644 > --- a/drivers/virtio/virtio_ring.c > +++ b/drivers/virtio/virtio_ring.c > @@ -58,14 +58,14 @@ > > struct vring_desc_state { > void *data; /* Data for callback. */ > - struct vring_desc *indir_desc; /* Indirect descriptor, if any. */ > + void *indir_desc; /* Indirect descriptor, if any. */ > + int num; /* Descriptor list length. */ > }; > > struct vring_virtqueue { > struct...

This switches virtio to use the DMA API on Xen and if requested by module option. This fixes virtio on Xen, and it should break anything because it's off by default on everything except Xen PV on x86. To the Xen people: is this okay? If it doesn't work on other Xen variants (PVH? HVM?), can you submit follow-up patches to fix it? To everyone else: we've waffled on this for way too