Messages in this thread | | | From | Paolo Bonzini <> | Subject | [PATCH v3 0/5] virtio-scsi multiqueue | Date | Tue, 12 Feb 2013 14:06:26 +0100 |
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This series implements virtio-scsi queue steering, which gives performance improvements of up to 50% (measured both with QEMU and tcm_vhost backends). The patches build on top of the new virtio APIs at http://permalink.gmane.org/gmane.linux.kernel.virtualization/18431; the new API simplifies the locking of the virtio-scsi driver nicely, thus it makes sense to require them as a prerequisite.
Changes from the previous post, which can be found at http://permalink.gmane.org/gmane.linux.kernel.virtualization/17869:
- patches 1 and 2 ("virtio: add functions for piecewise addition of buffers", "virtio-scsi: use functions for piecewise composition of buffers") split into their own series
- new cleanup patch "virtio-scsi: push vq lock/unlock into virtscsi_vq_done"
- reorganized code to move ACCESS_ONCE in a clearer place
- included Wanlong Gao's CPU hotplug patches
Ok for 3.9? It would probably be easier to get it in via Rusty's tree because of the prerequisites. James, can I get your Acked-by?
Paolo
Paolo Bonzini (4): virtio-scsi: redo allocation of target data virtio-scsi: pass struct virtio_scsi to virtqueue completion function virtio-scsi: push vq lock/unlock into virtscsi_vq_done virtio-scsi: introduce multiqueue support
Wanlong Gao (1): virtio-scsi: reset virtqueue affinity when doing cpu hotplug
drivers/scsi/virtio_scsi.c | 360 +++++++++++++++++++++++++++++++++++--------- 1 files changed, 292 insertions(+), 68 deletions(-)
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