search for: f63d358

...; 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 It would be nice to allocate virtqueues dynamically instead of hardcoding the limit. virtio-scsi also allocates virtqu...

...; 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 It would be nice to allocate virtqueues dynamically instead of hardcoding the limit. virtio-scsi also allocates virtqu...

...i <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...

...Signed-off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 70 +++++++++++++++++++++++++++++++------------- > 1 file changed, 50 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..7c3d686 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); > Does it work much worse if we just use...

...Signed-off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 70 +++++++++++++++++++++++++++++++------------- > 1 file changed, 50 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..7c3d686 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); > Does it work much worse if we just use...

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

Hi, These 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 on virtio-blk device can 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 and

Hi, These 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 on virtio-blk device can 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 and

...Signed-off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 109 ++++++++++++++++++++++++++++++++++++-------- > 1 file changed, 89 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..b0a49a0 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -21,11 +21,14 @@ static DEFINE_IDA(vd_index_ida); > > static struct workqueue_struct *virtblk_wq; > > +struct virtio_blk_vq { > + struct virtqueue *vq; > + spinlock_t lock; &gt...

...Signed-off-by: Ming Lei <ming.lei at canonical.com> > --- > drivers/block/virtio_blk.c | 109 ++++++++++++++++++++++++++++++++++++-------- > 1 file changed, 89 insertions(+), 20 deletions(-) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index f63d358..b0a49a0 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -21,11 +21,14 @@ static DEFINE_IDA(vd_index_ida); > > static struct workqueue_struct *virtblk_wq; > > +struct virtio_blk_vq { > + struct virtqueue *vq; > + spinlock_t lock; &gt...

...performance can be improved. Signed-off-by: Ming Lei <ming.lei at canonical.com> --- drivers/block/virtio_blk.c | 70 +++++++++++++++++++++++++++++++------------- 1 file changed, 50 insertions(+), 20 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index f63d358..7c3d686 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 v...

...ance problem 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 v...

...performance can be improved. Signed-off-by: Ming Lei <ming.lei at canonical.com> --- drivers/block/virtio_blk.c | 109 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 89 insertions(+), 20 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index f63d358..b0a49a0 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -21,11 +21,14 @@ static DEFINE_IDA(vd_index_ida); static struct workqueue_struct *virtblk_wq; +struct virtio_blk_vq { + struct virtqueue *vq; + spinlock_t lock; +} ____cacheline_aligned_in_smp; + struct virti...

...performance can be improved. Signed-off-by: Ming Lei <ming.lei at canonical.com> --- drivers/block/virtio_blk.c | 104 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 84 insertions(+), 20 deletions(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index f63d358..0a58140 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -15,17 +15,22 @@ #include <linux/numa.h> #define PART_BITS 4 +#define VQ_NAME_LEN 16 static int major; static DEFINE_IDA(vd_index_ida); static struct workqueue_struct *virtblk_wq; +struct virtio_...

Hi, These 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 on virtio-blk device can 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 and

Hi, These 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 on virtio-blk device can 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 and

Hi, These 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 on virtio-blk device can 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 and

Hi, These 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 on virtio-blk device can 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 and