search for: d3f7674

...eck virtio_legacy_is_little_endian first. Cc: Greg Kurz <gkurz at linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/vhost.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 4772862..d3f7674 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -183,10 +183,17 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) return vq->acked_features & (1ULL << bit); } +#ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY static inline bool vhost_is_little_...

...eck virtio_legacy_is_little_endian first. Cc: Greg Kurz <gkurz at linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/vhost.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 4772862..d3f7674 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -183,10 +183,17 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) return vq->acked_features & (1ULL << bit); } +#ifdef CONFIG_VHOST_CROSS_ENDIAN_LEGACY static inline bool vhost_is_little_...

...tic int translate_desc(struct vhost_virtqueue *vq, u64 addr, u32 len, } return ret; +#endif + return translate_iotlb(vq, addr, len, iov, iov_size); } /* Each buffer in the virtqueues is actually a chain of descriptors. This diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index d3f7674..d254efc 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -68,6 +68,8 @@ struct vhost_virtqueue { struct eventfd_ctx *call_ctx; struct eventfd_ctx *error_ctx; struct eventfd_ctx *log_ctx; + struct eventfd_ctx *iotlb_ctx; + struct vhost_iotlb __user *iotlb_request; struct...

...tic int translate_desc(struct vhost_virtqueue *vq, u64 addr, u32 len, } return ret; +#endif + return translate_iotlb(vq, addr, len, iov, iov_size); } /* Each buffer in the virtqueues is actually a chain of descriptors. This diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index d3f7674..d254efc 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -68,6 +68,8 @@ struct vhost_virtqueue { struct eventfd_ctx *call_ctx; struct eventfd_ctx *error_ctx; struct eventfd_ctx *log_ctx; + struct eventfd_ctx *iotlb_ctx; + struct vhost_iotlb __user *iotlb_request; struct...

...((u64)len - s, size); _iov->iov_base = (void __user *)(unsigned long) - (reg->userspace_addr + addr - reg->guest_phys_addr); + (node->userspace_addr + addr - node->start); s += size; addr += size; ++ret; diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index d3f7674..5d64393 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -52,6 +52,25 @@ struct vhost_log { u64 len; }; +#define START(node) ((node)->start) +#define LAST(node) ((node)->last) + +struct vhost_umem_node { + struct rb_node rb; + struct list_head link; + __u64 start; + __u...

...((u64)len - s, size); _iov->iov_base = (void __user *)(unsigned long) - (reg->userspace_addr + addr - reg->guest_phys_addr); + (node->userspace_addr + addr - node->start); s += size; addr += size; ++ret; diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index d3f7674..5d64393 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -52,6 +52,25 @@ struct vhost_log { u64 len; }; +#define START(node) ((node)->start) +#define LAST(node) ((node)->last) + +struct vhost_umem_node { + struct rb_node rb; + struct list_head link; + __u64 start; + __u...

...u64 addr, u32 len, > } > > return ret; > +#endif > + return translate_iotlb(vq, addr, len, iov, iov_size); > } > > /* Each buffer in the virtqueues is actually a chain of descriptors. This > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index d3f7674..d254efc 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -68,6 +68,8 @@ struct vhost_virtqueue { > struct eventfd_ctx *call_ctx; > struct eventfd_ctx *error_ctx; > struct eventfd_ctx *log_ctx; > + struct eventfd_ctx *iotlb_ctx; > + struct vhost_...

...((u64)len - s, size); _iov->iov_base = (void __user *)(unsigned long) - (reg->userspace_addr + addr - reg->guest_phys_addr); + (node->userspace_addr + addr - node->start); s += size; addr += size; ++ret; diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index d3f7674..5d64393 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -52,6 +52,25 @@ struct vhost_log { u64 len; }; +#define START(node) ((node)->start) +#define LAST(node) ((node)->last) + +struct vhost_umem_node { + struct rb_node rb; + struct list_head link; + __u64 start; + __u...

...ov_base = (void __user *)(unsigned long) > - (reg->userspace_addr + addr - reg->guest_phys_addr); > + (node->userspace_addr + addr - node->start); > s += size; > addr += size; > ++ret; > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index d3f7674..5d64393 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -52,6 +52,25 @@ struct vhost_log { > u64 len; > }; > > +#define START(node) ((node)->start) > +#define LAST(node) ((node)->last) > + > +struct vhost_umem_node { > + struct rb...

...ov_base = (void __user *)(unsigned long) > - (reg->userspace_addr + addr - reg->guest_phys_addr); > + (node->userspace_addr + addr - node->start); > s += size; > addr += size; > ++ret; > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index d3f7674..5d64393 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -52,6 +52,25 @@ struct vhost_log { > u64 len; > }; > > +#define START(node) ((node)->start) > +#define LAST(node) ((node)->last) > + > +struct vhost_umem_node { > + struct rb...

...ov_base = (void __user *)(unsigned long) > - (reg->userspace_addr + addr - reg->guest_phys_addr); > + (node->userspace_addr + addr - node->start); > s += size; > addr += size; > ++ret; > diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h > index d3f7674..5d64393 100644 > --- a/drivers/vhost/vhost.h > +++ b/drivers/vhost/vhost.h > @@ -52,6 +52,25 @@ struct vhost_log { > u64 len; > }; > > +#define START(node) ((node)->start) > +#define LAST(node) ((node)->last) > + > +struct vhost_umem_node { > + struct rb...

Hi all: This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected

Hi all: This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected

This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected mlx4 - Guest

This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected mlx4 - Guest

This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected mlx4 - Guest

This series tries to add basic busy polling for vhost net. The idea is simple: at the end of tx/rx processing, busy polling for new tx added descriptor and rx receive socket for a while. The maximum number of time (in us) could be spent on busy polling was specified ioctl. Test A were done through: - 50 us as busy loop timeout - Netperf 2.6 - Two machines with back to back connected mlx4 - Guest

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - Fill the translation request in a preset userspace address (This

This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment (DMAR) in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the assistance of userspace to do the translation, this is done through: - Fill the translation request in a preset userspace address (This