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Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MULTIQUEUE for this feature, a +new configuration field max_virtqueue_pairs to detect supported number +of virtqueues as well as a new command VIRTIO_NET_CTRL_STEERING to +program packet steering. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Changes from v3: Address Sasha's comments - drop debug fields - less fields less to debug :) - clarify max_virtqueue_pairs field and steering param field - misc typos Address Paolo's comments - Fix...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MULTIQUEUE for this feature, a +new configuration field max_virtqueue_pairs to detect supported number +of virtqueues as well as a new command VIRTIO_NET_CTRL_STEERING to +program packet steering. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Changes from v3: Address Sasha's comments - drop debug fields - less fields less to debug :) - clarify max_virtqueue_pairs field and steering param field - misc typos Address Paolo's comments - Fix...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MULTIQUEUE for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_STEERING to program packet steering. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> -- Changes from v2: Address Jason's comments on v2: - Changed STEERING_HOST to STEERING_RX_FOLLOWS_TX: this is both clearer and easier to support. It does not look like we need a separate steering...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MULTIQUEUE for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_STEERING to program packet steering. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> -- Changes from v2: Address Jason's comments on v2: - Changed STEERING_HOST to STEERING_RX_FOLLOWS_TX: this is both clearer and easier to support. It does not look like we need a separate steering...

At Jason's request, I am trying to help finalize the spec for the new multiqueue feature. Changes from Jason's rfc: - reserved vq 3: this makes all rx vqs even and tx vqs odd, which looks nicer to me. - documented packet steering, added a generalized steering programming command. Current modes are single queue and host driven multiqueue, but I envision support for guest driven multiqueue in the future. - make default vqs unused when in mq mode - this wastes some memory but makes it more efficient to switch between...

At Jason's request, I am trying to help finalize the spec for the new multiqueue feature. Changes from Jason's rfc: - reserved vq 3: this makes all rx vqs even and tx vqs odd, which looks nicer to me. - documented packet steering, added a generalized steering programming command. Current modes are single queue and host driven multiqueue, but I envision support for guest driven multiqueue in the future. - make default vqs unused when in mq mode - this wastes some memory but makes it more efficient to switch between...

...ulation > rules and decision on receive virtqueue according to > the calculated hash, provided mask to apply and > provided indirection table containing indices of > receive virqueues. The driver sends the control > command to enable multiqueue and provide parameters > for receive steering. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > 1 file changed, 40 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/l...

...ulation > rules and decision on receive virtqueue according to > the calculated hash, provided mask to apply and > provided indirection table containing indices of > receive virqueues. The driver sends the control > command to enable multiqueue and provide parameters > for receive steering. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > 1 file changed, 40 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/l...

...ue according to > > > the calculated hash, provided mask to apply and > > > provided indirection table containing indices of > > > receive virqueues. The driver sends the control > > > command to enable multiqueue and provide parameters > > > for receive steering. > > > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > > --- > > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > > 1 file changed, 40 insertions(+), 2 deletions(-) > > > > &gt...

...ue according to > > > the calculated hash, provided mask to apply and > > > provided indirection table containing indices of > > > receive virqueues. The driver sends the control > > > command to enable multiqueue and provide parameters > > > for receive steering. > > > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > > --- > > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > > 1 file changed, 40 insertions(+), 2 deletions(-) > > > > &gt...

...ide scaling) defines hash calculation rules and decision on receive virtqueue according to the calculated hash, provided mask to apply and provided indirection table containing indices of receive virqueues. The driver sends the control command to enable multiqueue and provide parameters for receive steering. Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> --- include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- 1 file changed, 40 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index 19e76b3e3a6...

...cision on receive virtqueue according to > > the calculated hash, provided mask to apply and > > provided indirection table containing indices of > > receive virqueues. The driver sends the control > > command to enable multiqueue and provide parameters > > for receive steering. > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > --- > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > 1 file changed, 40 insertions(+), 2 deletions(-) > > > > diff --git a/include/uapi/li...

...ulation > rules and decision on receive virtqueue according to > the calculated hash, provided mask to apply and > provided indirection table containing indices of > receive virqueues. The driver sends the control > command to enable multiqueue and provide parameters > for receive steering. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > 1 file changed, 40 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/l...

...> > the calculated hash, provided mask to apply and > > > > provided indirection table containing indices of > > > > receive virqueues. The driver sends the control > > > > command to enable multiqueue and provide parameters > > > > for receive steering. > > > > > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > > > --- > > > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > > > 1 file changed, 40 insertions(+), 2 deletions(-...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. --- Changes in v6: - rename RFS -> multiqueue to avoid confusion with RFS in linux mention automatic receive steering as Rusty suggested Changes in v5: - Address Rusty's comments. Changes are only in the text, not the ideas. - Some minor formatting cha...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. --- Changes in v6: - rename RFS -> multiqueue to avoid confusion with RFS in linux mention automatic receive steering as Rusty suggested Changes in v5: - Address Rusty's comments. Changes are only in the text, not the ideas. - Some minor formatting cha...

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v2: reformatted structure in patch 1 Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 100 ++++++++++++++++++++++++++++++-- 1 file changed, 96 insertions(+), 4 deletions(-) -- 2.17.1

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v2: reformatted structure in patch 1 Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 100 ++++++++++++++++++++++++++++++-- 1 file changed, 96 insertions(+), 4 deletions(-) -- 2.17.1

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Changes in v7: - 8000h -> 0x8000 at Rusty's request Changes in v6: - rename RFS -> multiqueue to avoid confusion with RFS in linux mention automatic receive steering as Rusty suggested...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Changes in v7: - 8000h -> 0x8000 at Rusty's request Changes in v6: - rename RFS -> multiqueue to avoid confusion with RFS in linux mention automatic receive steering as Rusty suggested...