search for: virtio_add_

This is the only driver which doesn't hand virtqueue_add_inbuf and virtqueue_add_outbuf a well-formed, well-terminated sg. Fix it, so we can make virtio_add_* simpler. pktgen results: modprobe pktgen echo 'add_device eth0' > /proc/net/pktgen/kpktgend_0 echo nowait 1 > /proc/net/pktgen/eth0 echo count 1000000 > /proc/net/pktgen/eth0 echo clone_skb 100000 > /proc/net/pktgen/eth0 echo dst_mac 4e:14:25:a9:30:ac > /proc/net/pktg...

I resurrected these patches after prompting from Andy Lutomirski's recent patches. I put them on the back-burner because vring_bench had a 15% slowdown on my laptop: pktgen testing revealed a speedup, if anything, so I've cleaned them up. Rusty Russell (3): virtio_net: pass well-formed sgs to virtqueue_add_*() virtio_ring: assume sgs are always well-formed. virtio_ring: unify

I resurrected these patches after prompting from Andy Lutomirski's recent patches. I put them on the back-burner because vring_bench had a 15% slowdown on my laptop: pktgen testing revealed a speedup, if anything, so I've cleaned them up. Rusty Russell (3): virtio_net: pass well-formed sgs to virtqueue_add_*() virtio_ring: assume sgs are always well-formed. virtio_ring: unify

...concern about reducing stack usage, hence the stack measurements). Cheers, Rusty. Subject: virtio_net: pass well-formed sg to virtqueue_add_inbuf() This is the only place which doesn't hand virtqueue_add_inbuf or virtqueue_add_outbuf a well-formed, well-terminated sg. Fix it, so we can make virtio_add_* simpler. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8a852b5f215f..63299b04cdf2 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -590,6 +590,8 @@ static int add_recvbuf_big(struct rece...

...concern about reducing stack usage, hence the stack measurements). Cheers, Rusty. Subject: virtio_net: pass well-formed sg to virtqueue_add_inbuf() This is the only place which doesn't hand virtqueue_add_inbuf or virtqueue_add_outbuf a well-formed, well-terminated sg. Fix it, so we can make virtio_add_* simpler. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 8a852b5f215f..63299b04cdf2 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -590,6 +590,8 @@ static int add_recvbuf_big(struct rece...

This fixes virtio on Xen guests as well as on any other platform on which physical addresses don't match bus addresses. This can be tested with: virtme-run --xen xen --kimg arch/x86/boot/bzImage --console using virtme from here: https://git.kernel.org/cgit/utils/kernel/virtme/virtme.git Without these patches, the guest hangs forever. With these patches, everything works. There

This fixes virtio on Xen guests as well as on any other platform on which physical addresses don't match bus addresses. This can be tested with: virtme-run --xen xen --kimg arch/x86/boot/bzImage --console using virtme from here: https://git.kernel.org/cgit/utils/kernel/virtme/virtme.git Without these patches, the guest hangs forever. With these patches, everything works. There