similar to: [PATCHv7] add mergeable buffers support to vhost_net

This patch adds mergeable receive buffer support to vhost_net. +-DLS Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-v0/drivers/vhost/net.c net-next-v6/drivers/vhost/net.c --- net-next-v0/drivers/vhost/net.c 2010-04-24 21:36:54.000000000 -0700 +++ net-next-v6/drivers/vhost/net.c 2010-04-26 01:13:04.000000000 -0700 @@ -109,7 +109,7 @@ static void

This patch adds mergeable receive buffer support to vhost_net. +-DLS Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-v0/drivers/vhost/net.c net-next-v6/drivers/vhost/net.c --- net-next-v0/drivers/vhost/net.c 2010-04-24 21:36:54.000000000 -0700 +++ net-next-v6/drivers/vhost/net.c 2010-04-26 01:13:04.000000000 -0700 @@ -109,7 +109,7 @@ static void

This patch adds the mergeable RX buffers feature to vhost. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-p0/drivers/vhost/net.c net-next-v4/drivers/vhost/net.c --- net-next-p0/drivers/vhost/net.c 2010-03-22 12:04:38.000000000 -0700 +++ net-next-v4/drivers/vhost/net.c 2010-04-19 14:23:38.000000000 -0700 @@ -108,7 +108,7 @@ static void handle_tx(struct

This patch adds the mergeable RX buffers feature to vhost. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-p0/drivers/vhost/net.c net-next-v4/drivers/vhost/net.c --- net-next-p0/drivers/vhost/net.c 2010-03-22 12:04:38.000000000 -0700 +++ net-next-v4/drivers/vhost/net.c 2010-04-19 14:23:38.000000000 -0700 @@ -108,7 +108,7 @@ static void handle_tx(struct

This patch adds mergeable receive buffers support to vhost. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-v0/drivers/vhost/net.c net-next-v5/drivers/vhost/net.c --- net-next-v0/drivers/vhost/net.c 2010-04-22 11:31:57.000000000 -0700 +++ net-next-v5/drivers/vhost/net.c 2010-04-22 12:41:17.000000000 -0700 @@ -109,7 +109,7 @@ static void handle_tx(struct

This patch adds mergeable receive buffers support to vhost. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruNp net-next-v0/drivers/vhost/net.c net-next-v5/drivers/vhost/net.c --- net-next-v0/drivers/vhost/net.c 2010-04-22 11:31:57.000000000 -0700 +++ net-next-v5/drivers/vhost/net.c 2010-04-22 12:41:17.000000000 -0700 @@ -109,7 +109,7 @@ static void handle_tx(struct

This patch adds support for the Mergeable Receive Buffers feature to vhost_net. +-DLS Changes from previous revision: 1) renamed: vhost_discard_vq_desc -> vhost_discard_desc vhost_get_heads -> vhost_get_desc_n vhost_get_vq_desc -> vhost_get_desc 2) added heads as argument to ghost_get_desc_n 3) changed "vq->heads" from iovec to vring_used_elem, removed casts 4)

This patch adds support for the Mergeable Receive Buffers feature to vhost_net. +-DLS Changes from previous revision: 1) renamed: vhost_discard_vq_desc -> vhost_discard_desc vhost_get_heads -> vhost_get_desc_n vhost_get_vq_desc -> vhost_get_desc 2) added heads as argument to ghost_get_desc_n 3) changed "vq->heads" from iovec to vring_used_elem, removed casts 4)

This patch adds vnet_hdr processing for mergeable buffer support to vhost-net. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruN net-next-p1/drivers/vhost/net.c net-next-p2/drivers/vhost/net.c --- net-next-p1/drivers/vhost/net.c 2010-03-01 11:44:22.000000000 -0800 +++ net-next-p2/drivers/vhost/net.c 2010-03-02 13:01:34.000000000 -0800 @@ -109,7 +109,6 @@

This patch adds vnet_hdr processing for mergeable buffer support to vhost-net. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruN net-next-p1/drivers/vhost/net.c net-next-p2/drivers/vhost/net.c --- net-next-p1/drivers/vhost/net.c 2010-03-01 11:44:22.000000000 -0800 +++ net-next-p2/drivers/vhost/net.c 2010-03-02 13:01:34.000000000 -0800 @@ -109,7 +109,6 @@

No need to check the support of mergeable buffer inside the recevie loop as the whole handle_rx()_xx is in the read critical region. So this patch move it ahead of the receiving loop. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index

No need to check the support of mergeable buffer inside the recevie loop as the whole handle_rx()_xx is in the read critical region. So this patch move it ahead of the receiving loop. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/net.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index

This patch generalizes buffer handling functions to support multiple buffer heads. In-line for viewing, attached for applying. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruN net-next-p0/drivers/vhost/net.c net-next-p1/drivers/vhost/net.c --- net-next-p0/drivers/vhost/net.c 2010-02-24 12:59:24.000000000 -0800 +++ net-next-p1/drivers/vhost/net.c 2010-03-01

This patch generalizes buffer handling functions to support multiple buffer heads. In-line for viewing, attached for applying. Signed-off-by: David L Stevens <dlstevens at us.ibm.com> diff -ruN net-next-p0/drivers/vhost/net.c net-next-p1/drivers/vhost/net.c --- net-next-p0/drivers/vhost/net.c 2010-02-24 12:59:24.000000000 -0800 +++ net-next-p1/drivers/vhost/net.c 2010-03-01

On 2020/6/2 ??9:06, Michael S. Tsirkin wrote: > Convert vhost net to use the new format-agnostic API. > In particular, don't poke at vq internals such as the > heads array. > > Signed-off-by: Michael S. Tsirkin <mst at redhat.com> > --- > drivers/vhost/net.c | 153 +++++++++++++++++++++++--------------------- > 1 file changed, 81 insertions(+), 72 deletions(-)

Hi all: This RFC implement packed ring layout. The code were tested with Tiwei's RFC V2 a thttps://lkml.org/lkml/2018/4/1/48. Some fixups and tweaks were needed on top of Tiwei's code to make it run. TCP stream and pktgen does not show obvious difference compared with split ring. Changes from V2: - do not use & in checking desc_event_flags - off should be most significant bit -

Hi all: This RFC implement packed ring layout. The code were tested with Tiwei's RFC V2 a thttps://lkml.org/lkml/2018/4/1/48. Some fixups and tweaks were needed on top of Tiwei's code to make it run. TCP stream and pktgen does not show obvious difference compared with split ring. Changes from V2: - do not use & in checking desc_event_flags - off should be most significant bit -

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 series implements packed virtqueues. The code were tested with Tiwei's guest driver series at https://patchwork.ozlabs.org/cover/942297/ 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