search for: e0d077d

...off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 75 ++++++++++++++++++++++++++++++++------------ > 1 file changed, 55 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..e0d077d 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -16,6 +16,8 @@ > > #define PART_BITS 4 > > +#define MAX_NUM_VQ 16 It would be nice to allocate virtqueues dynamically instead of hardcoding the limit. virtio-scsi also allocates virtqueues dyna...

...off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 75 ++++++++++++++++++++++++++++++++------------ > 1 file changed, 55 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..e0d077d 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -16,6 +16,8 @@ > > #define PART_BITS 4 > > +#define MAX_NUM_VQ 16 It would be nice to allocate virtqueues dynamically instead of hardcoding the limit. virtio-scsi also allocates virtqueues dyna...

...g.lei at canonical.com> >> --- >> drivers/block/virtio_blk.c | 75 ++++++++++++++++++++++++++++++++------------ >> 1 file changed, 55 insertions(+), 20 deletions(-) >> >> diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c >> index f63d358..e0d077d 100644 >> --- a/drivers/block/virtio_blk.c >> +++ b/drivers/block/virtio_blk.c >> @@ -16,6 +16,8 @@ >> >> #define PART_BITS 4 >> >> +#define MAX_NUM_VQ 16 > > It would be nice to allocate virtqueues dynamically instead of > hardcoding the limit....

Hi, This patches try to support multi virtual queues(multi-vq) in one virtio-blk device, and maps each virtual queue(vq) to blk-mq's hardware queue. With this approach, both scalability and performance problems on virtio-blk device get improved. For verifying the improvement, I implements virtio-blk multi-vq over qemu's dataplane feature, and both handling host notification from each vq

Hi, This patches try to support multi virtual queues(multi-vq) in one virtio-blk device, and maps each virtual queue(vq) to blk-mq's hardware queue. With this approach, both scalability and performance problems on virtio-blk device get improved. For verifying the improvement, I implements virtio-blk multi-vq over qemu's dataplane feature, and both handling host notification from each vq

...lem can be improved. Signed-off-by: Ming Lei <ming.lei at canonical.com> --- drivers/block/virtio_blk.c | 75 ++++++++++++++++++++++++++++++++------------ 1 file changed, 55 insertions(+), 20 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index f63d358..e0d077d 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -16,6 +16,8 @@ #define PART_BITS 4 +#define MAX_NUM_VQ 16 + static int major; static DEFINE_IDA(vd_index_ida); @@ -24,8 +26,8 @@ static struct workqueue_struct *virtblk_wq; struct virtio_blk { struct virtio_dev...