From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: [PATCH v3 0/5] virtio-scsi multiqueue Date: Tue, 12 Feb 2013 14:06:26 +0100 Message-ID: <1360674391-2661-1-git-send-email-pbonzini@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: linux-kernel@vger.kernel.org Cc: linux-scsi@vger.kernel.org, kvm@vger.kernel.org, mst@redhat.com, JBottomley@parallels.com, virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.org 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(-)