search for: vhost_backend_f_iotlb_msg_v2

...eletions(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index 453057421f80..8f624bbafee7 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -56,7 +56,9 @@ enum { > }; > > enum { > - VHOST_VDPA_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) > + VHOST_VDPA_BACKEND_FEATURES = > + (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) | > + (1ULL << VHOST_BACKEND_F_IOTLB_BATCH), > }; > > /* Currently, only network backend w/o multiqueue is supported. */ > @@ -77,6 +79,7 @@ struct vhost_vdpa { > int virtio_id; &...

...eletions(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index 453057421f80..8f624bbafee7 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -56,7 +56,9 @@ enum { > }; > > enum { > - VHOST_VDPA_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) > + VHOST_VDPA_BACKEND_FEATURES = > + (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) | > + (1ULL << VHOST_BACKEND_F_IOTLB_BATCH), > }; > > /* Currently, only network backend w/o multiqueue is supported. */ > @@ -77,6 +79,7 @@ struct vhost_vdpa { > int virtio_id; &...

...s/vhost/vdpa.c > > > index 453057421f80..8f624bbafee7 100644 > > > --- a/drivers/vhost/vdpa.c > > > +++ b/drivers/vhost/vdpa.c > > > @@ -56,7 +56,9 @@ enum { > > > }; > > > enum { > > > - VHOST_VDPA_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) > > > + VHOST_VDPA_BACKEND_FEATURES = > > > + (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) | > > > + (1ULL << VHOST_BACKEND_F_IOTLB_BATCH), > > > }; > > > /* Currently, only network backend w/o multiqueue is supported. */ > > > @@ -77...

...uapi/linux/vhost.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index b1e22c40c4b6..84c3de89696a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -176,7 +176,7 @@ struct vhost_memory { #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) /* VHOST_NET specific defines */ -- glebfm

...uapi/linux/vhost.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index b1e22c40c4b6..84c3de89696a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -176,7 +176,7 @@ struct vhost_memory { #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) /* VHOST_NET specific defines */ -- glebfm

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is deisgend to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

...7 +++++++ 3 files changed, 32 insertions(+), 7 deletions(-) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 453057421f80..8f624bbafee7 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -56,7 +56,9 @@ enum { }; enum { - VHOST_VDPA_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) + VHOST_VDPA_BACKEND_FEATURES = + (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) | + (1ULL << VHOST_BACKEND_F_IOTLB_BATCH), }; /* Currently, only network backend w/o multiqueue is supported. */ @@ -77,6 +79,7 @@ struct vhost_vdpa { int virtio_id; int minor; struct eventfd_ctx *config...

.../drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c >> index 453057421f80..8f624bbafee7 100644 >> --- a/drivers/vhost/vdpa.c >> +++ b/drivers/vhost/vdpa.c >> @@ -56,7 +56,9 @@ enum { >> }; >> >> enum { >> - VHOST_VDPA_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) >> + VHOST_VDPA_BACKEND_FEATURES = >> + (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) | >> + (1ULL << VHOST_BACKEND_F_IOTLB_BATCH), >> }; >> >> /* Currently, only network backend w/o multiqueue is supported. */ >> @@ -77,6 +79,7 @@ struct vhost...

...st.h | 18 ++++++++++++ 4 files changed, 111 insertions(+), 19 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 367d802..4e656f8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -78,6 +78,10 @@ enum { }; enum { + VHOST_NET_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) +}; + +enum { VHOST_NET_VQ_RX = 0, VHOST_NET_VQ_TX = 1, VHOST_NET_VQ_MAX = 2, @@ -1399,6 +1403,21 @@ static long vhost_net_reset_owner(struct vhost_net *n) return err; } +static int vhost_net_set_backend_features(struct vhost_net *n, u64 features) +{ + int i; + + mutex_lock(&n->d...

...st.h | 18 ++++++++++++ 4 files changed, 111 insertions(+), 19 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 367d802..4e656f8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -78,6 +78,10 @@ enum { }; enum { + VHOST_NET_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) +}; + +enum { VHOST_NET_VQ_RX = 0, VHOST_NET_VQ_TX = 1, VHOST_NET_VQ_MAX = 2, @@ -1399,6 +1403,21 @@ static long vhost_net_reset_owner(struct vhost_net *n) return err; } +static int vhost_net_set_backend_features(struct vhost_net *n, u64 features) +{ + int i; + + mutex_lock(&n->d...

...tions(+), 19 deletions(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 367d802..4e656f8 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -78,6 +78,10 @@ enum { > }; > > enum { > + VHOST_NET_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) > +}; > + > +enum { > VHOST_NET_VQ_RX = 0, > VHOST_NET_VQ_TX = 1, > VHOST_NET_VQ_MAX = 2, > @@ -1399,6 +1403,21 @@ static long vhost_net_reset_owner(struct vhost_net *n) > return err; > } > > +static int vhost_net_set_backend_features(struct vhost_net *n...

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is designed to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

...st.h | 18 ++++++++++++ 4 files changed, 111 insertions(+), 19 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 367d802..4e656f8 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -78,6 +78,10 @@ enum { }; enum { + VHOST_NET_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2) +}; + +enum { VHOST_NET_VQ_RX = 0, VHOST_NET_VQ_TX = 1, VHOST_NET_VQ_MAX = 2, @@ -1399,6 +1403,21 @@ static long vhost_net_reset_owner(struct vhost_net *n) return err; } +static int vhost_net_set_backend_features(struct vhost_net *n, u64 features) +{ + int i; + + mutex_lock(&n->d...

...letion(-) >> >> diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h >> index b1e22c40c4b6..84c3de89696a 100644 >> --- a/include/uapi/linux/vhost.h >> +++ b/include/uapi/linux/vhost.h >> @@ -176,7 +176,7 @@ struct vhost_memory { >> #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 >> >> #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) >> -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) >> +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) >> >> /* VHOST_NET specific define...

...letion(-) >> >> diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h >> index b1e22c40c4b6..84c3de89696a 100644 >> --- a/include/uapi/linux/vhost.h >> +++ b/include/uapi/linux/vhost.h >> @@ -176,7 +176,7 @@ struct vhost_memory { >> #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 >> >> #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) >> -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) >> +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) >> >> /* VHOST_NET specific define...

...hanged, 1 insertion(+), 1 deletion(-) > > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h > index b1e22c40c4b6..84c3de89696a 100644 > --- a/include/uapi/linux/vhost.h > +++ b/include/uapi/linux/vhost.h > @@ -176,7 +176,7 @@ struct vhost_memory { > #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 > > #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) > -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) > +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) > > /* VHOST_NET specific defines */ > > > -- &...

...ff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h > > > index b1e22c40c4b6..84c3de89696a 100644 > > > --- a/include/uapi/linux/vhost.h > > > +++ b/include/uapi/linux/vhost.h > > > @@ -176,7 +176,7 @@ struct vhost_memory { > > > #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 > > > #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) > > > -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) > > > +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) > > > /* VHOST_NET specific define...

Hi All: This series tries to add the support for control virtqueue in vDPA. Control virtqueue is used by networking device for accepting various commands from the driver. It's a must to support multiqueue and other configurations. When used by vhost-vDPA bus driver for VM, the control virtqueue should be shadowed via userspace VMM (Qemu) instead of being assigned directly to Guest. This is

Hi All: This series tries to add the support for control virtqueue in vDPA. Control virtqueue is used by networking device for accepting various commands from the driver. It's a must to support multiqueue and other configurations. When used by vhost-vDPA bus driver for VM, the control virtqueue should be shadowed via userspace VMM (Qemu) instead of being assigned directly to Guest. This is