search for: vq_access_ok_packed

...rivers/vhost/vhost.h | 10 ++- > 2 files changed, 185 insertions(+), 16 deletions(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 0f3f07c..cccbc82 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1115,10 +1115,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, > struct vring_used __user *used) > { > struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; > + struct vring_packed_desc_event *driver_event = > + (struct vring_packed_desc_event *)avail; > + struct vrin...

...rivers/vhost/vhost.h | 10 ++- > 2 files changed, 185 insertions(+), 16 deletions(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 0f3f07c..cccbc82 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1115,10 +1115,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, > struct vring_used __user *used) > { > struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; > + struct vring_packed_desc_event *driver_event = > + (struct vring_packed_desc_event *)avail; > + struct vrin...

...+- >> 2 files changed, 185 insertions(+), 16 deletions(-) >> >> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c >> index 0f3f07c..cccbc82 100644 >> --- a/drivers/vhost/vhost.c >> +++ b/drivers/vhost/vhost.c >> @@ -1115,10 +1115,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, >> struct vring_used __user *used) >> { >> struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; >> + struct vring_packed_desc_event *driver_event = >> + (struct vring_packed_desc_event *)av...

...+1137,22 @@ static int vhost_iotlb_miss(struct vhost_virtqueue *vq, u64 iova, int access) return 0; } -static int vq_access_ok(struct vhost_virtqueue *vq, unsigned int num, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) +static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, + struct vring_desc __user *desc, + struct vring_avail __user *avail, + struct vring_used __user *used) +{ + struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + + /* FIXME: check device area and driver area...

...2,22 @@ static int vhost_iotlb_miss(struct vhost_virtqueue *vq, u64 iova, int access) return 0; } -static bool vq_access_ok(struct vhost_virtqueue *vq, unsigned int num, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) +static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, + struct vring_desc __user *desc, + struct vring_avail __user *avail, + struct vring_used __user *used) +{ + struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + + /* FIXME: check device area and driver area...

...| 10 ++- include/uapi/linux/virtio_ring.h | 19 +++++ 3 files changed, 182 insertions(+), 15 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index f2a0f5b..afdf4c1 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1108,10 +1108,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, struct vring_used __user *used) { struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + struct vring_packed_desc_event *driver_event = + (struct vring_packed_desc_event *)avail; + struct vring_packed_desc_event *device_ev...

...| 10 ++- include/uapi/linux/virtio_ring.h | 19 +++++ 3 files changed, 183 insertions(+), 15 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 6177e4d..ff83a2e 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1143,10 +1143,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, struct vring_used __user *used) { struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + struct vring_packed_desc_event *driver_event = + (struct vring_packed_desc_event *)avail; + struct vring_packed_desc_event *device_ev...

...++++++++++++++++++++++++++++---- drivers/vhost/vhost.h | 10 ++- 2 files changed, 185 insertions(+), 16 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 0f3f07c..cccbc82 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1115,10 +1115,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, struct vring_used __user *used) { struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + struct vring_packed_desc_event *driver_event = + (struct vring_packed_desc_event *)avail; + struct vring_packed_desc_event *device_ev...

...| 10 +- include/uapi/linux/virtio_ring.h | 19 ++++ 3 files changed, 204 insertions(+), 16 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index a36e5ad2..112f680 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1112,10 +1112,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, struct vring_used __user *used) { struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; + struct vring_packed_desc_event *driver_event = + (struct vring_packed_desc_event *)avail; + struct vring_packed_desc_event *device_ev...

Hi all: This RFC implement a subset of packed ring which was described at https://github.com/oasis-tcs/virtio-docs/blob/master/virtio-v1.1-packed-wd07.pdf . The code were tested with pmd implement by Jens at http://dpdk.org/ml/archives/dev/2018-January/089417.html. Minor change was needed for pmd codes to kick virtqueue since it assumes a busy polling backend. Test were done between localhost

Hi all: This RFC implement a subset of packed ring which was described at https://github.com/oasis-tcs/virtio-docs/blob/master/virtio-v1.1-packed-wd07.pdf . The code were tested with pmd implement by Jens at http://dpdk.org/ml/archives/dev/2018-January/089417.html. Minor change was needed for pmd codes to kick virtqueue since it assumes a busy polling backend. Test were done between localhost

...9,22 @@ static int vhost_iotlb_miss(struct vhost_virtqueue *vq, u64 iova, int access) return 0; } -static bool vq_access_ok(struct vhost_virtqueue *vq, unsigned int num, - struct vring_desc __user *desc, - struct vring_avail __user *avail, - struct vring_used __user *used) +static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, + struct vring_desc __user *desc, + struct vring_avail __user *avail, + struct vring_used __user *used) +{ + struct vring_packed_desc *packed = (struct vring_packed_desc *)desc; + + /* TODO: check device area and driver area *...

...inux/virtio_ring.h | 19 ++++ > 3 files changed, 204 insertions(+), 16 deletions(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index a36e5ad2..112f680 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1112,10 +1112,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, > struct vring_used __user *used) > { > struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; > + struct vring_packed_desc_event *driver_event = > + (struct vring_packed_desc_event *)avail; > + struct vrin...

...inux/virtio_ring.h | 19 ++++ > 3 files changed, 204 insertions(+), 16 deletions(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index a36e5ad2..112f680 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -1112,10 +1112,15 @@ static int vq_access_ok_packed(struct vhost_virtqueue *vq, unsigned int num, > struct vring_used __user *used) > { > struct vring_desc_packed *packed = (struct vring_desc_packed *)desc; > + struct vring_packed_desc_event *driver_event = > + (struct vring_packed_desc_event *)avail; > + struct vrin...

Hi all: This RFC implement packed ring layout. The code were tested with Tiwei's RFC V5 at https://lkml.org/lkml/2018/5/22/138. Some fixups and tweaks were needed on top of Tiwei's code to make it run for event index. Pktgen reports about 20% improvement on TX PPS when doing pktgen from guest to host. No ovbious improvement on RX PPS. We can do lots of optimizations on top but for simple

Hi all: This series implements packed virtqueues. The code were tested with Tiwei's RFC V6 at https://lkml.org/lkml/2018/6/5/120. Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test virtio-net pmd as well when

Hi all: This series implements packed virtqueues. The code were tested with Tiwei's RFC V6 at https://lkml.org/lkml/2018/6/5/120. Pktgen test for both RX and TX does not show obvious difference with split virtqueues. The main bottleneck is the guest Linux driver, since it can not stress vhost for a 100% CPU utilization. A full TCP benchmark is ongoing. Will test virtio-net pmd as well when

Hi all: This RFC implement packed ring layout. The code were tested with pmd implement by Jens at http://dpdk.org/ml/archives/dev/2018-January/089417.html. Minor change was needed for pmd codes to kick virtqueue since it assumes a busy polling backend. Test were done between localhost and guest. Testpmd (rxonly) in guest reports 2.4Mpps. Testpmd (txonly) repots about 2.1Mpps. Notes: The event

Hi all: This RFC implement packed ring layout. The code were tested with pmd implement by Jens at http://dpdk.org/ml/archives/dev/2018-January/089417.html. Minor change was needed for pmd codes to kick virtqueue since it assumes a busy polling backend. Test were done between localhost and guest. Testpmd (rxonly) in guest reports 2.4Mpps. Testpmd (txonly) repots about 2.1Mpps. Notes: The event

Hi all: This RFC implement packed ring layout. The code were tested with Tiwei's RFC V3 ahttps://lkml.org/lkml/2018/4/25/34. Some fixups and tweaks were needed on top of Tiwei's code to make it run for event index. Pktgen reports about 20% improvement on PPS (event index is off). More testing is ongoing. Notes for tester: - Start from this version, vhost need qemu co-operation to work