Displaying 20 results from an estimated 52 matches for "req_don".
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req_done
2014 Jun 20
3
[PATCH v1 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 20
3
[PATCH v1 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 26
1
[PATCH v2 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...ns. */
> int index;
> +
> + /* num of vqs */
> + int num_vqs;
> + struct virtio_blk_vq *vqs;
> };
>
> struct virtblk_req
> @@ -133,14 +140,15 @@ static void virtblk_done(struct virtqueue *vq)
> {
> struct virtio_blk *vblk = vq->vdev->priv;
> bool req_done = false;
> + int qid = vq->index;
> struct virtblk_req *vbr;
> unsigned long flags;
> unsigned int len;
>
> - spin_lock_irqsave(&vblk->vq_lock, flags);
> + spin_lock_irqsave(&vblk->vqs[qid].lock, flags);
> do {
> virtqueue_disable_cb(vq);
&g...
2014 Jun 26
1
[PATCH v2 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...ns. */
> int index;
> +
> + /* num of vqs */
> + int num_vqs;
> + struct virtio_blk_vq *vqs;
> };
>
> struct virtblk_req
> @@ -133,14 +140,15 @@ static void virtblk_done(struct virtqueue *vq)
> {
> struct virtio_blk *vblk = vq->vdev->priv;
> bool req_done = false;
> + int qid = vq->index;
> struct virtblk_req *vbr;
> unsigned long flags;
> unsigned int len;
>
> - spin_lock_irqsave(&vblk->vq_lock, flags);
> + spin_lock_irqsave(&vblk->vqs[qid].lock, flags);
> do {
> virtqueue_disable_cb(vq);
&g...
2014 Jun 20
0
[PATCH v1 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...-47,6 +49,9 @@ struct virtio_blk
/* Ida index - used to track minor number allocations. */
int index;
+
+ /* num of vqs */
+ int num_vqs;
};
struct virtblk_req
@@ -133,14 +138,15 @@ static void virtblk_done(struct virtqueue *vq)
{
struct virtio_blk *vblk = vq->vdev->priv;
bool req_done = false;
+ int qid = vq->index;
struct virtblk_req *vbr;
unsigned long flags;
unsigned int len;
- spin_lock_irqsave(&vblk->vq_lock, flags);
+ spin_lock_irqsave(&vblk->vq_lock[qid], flags);
do {
virtqueue_disable_cb(vq);
- while ((vbr = virtqueue_get_buf(vblk->vq,...
2014 Jun 13
0
[RFC PATCH 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...-47,6 +49,9 @@ struct virtio_blk
/* Ida index - used to track minor number allocations. */
int index;
+
+ /* num of vqs */
+ int num_vqs;
};
struct virtblk_req
@@ -133,14 +138,15 @@ static void virtblk_done(struct virtqueue *vq)
{
struct virtio_blk *vblk = vq->vdev->priv;
bool req_done = false;
+ int qid = vq->index;
struct virtblk_req *vbr;
unsigned long flags;
unsigned int len;
- spin_lock_irqsave(&vblk->vq_lock, flags);
+ spin_lock_irqsave(&vblk->vq_lock[qid], flags);
do {
virtqueue_disable_cb(vq);
- while ((vbr = virtqueue_get_buf(vblk->vq,...
2014 Jun 26
0
[PATCH v2 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
..._blk
/* Ida index - used to track minor number allocations. */
int index;
+
+ /* num of vqs */
+ int num_vqs;
+ struct virtio_blk_vq *vqs;
};
struct virtblk_req
@@ -133,14 +140,15 @@ static void virtblk_done(struct virtqueue *vq)
{
struct virtio_blk *vblk = vq->vdev->priv;
bool req_done = false;
+ int qid = vq->index;
struct virtblk_req *vbr;
unsigned long flags;
unsigned int len;
- spin_lock_irqsave(&vblk->vq_lock, flags);
+ spin_lock_irqsave(&vblk->vqs[qid].lock, flags);
do {
virtqueue_disable_cb(vq);
- while ((vbr = virtqueue_get_buf(vblk->vq,...
2014 Jun 26
0
[PATCH v3 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
..._blk
/* Ida index - used to track minor number allocations. */
int index;
+
+ /* num of vqs */
+ int num_vqs;
+ struct virtio_blk_vq *vqs;
};
struct virtblk_req
@@ -133,14 +142,15 @@ static void virtblk_done(struct virtqueue *vq)
{
struct virtio_blk *vblk = vq->vdev->priv;
bool req_done = false;
+ int qid = vq->index;
struct virtblk_req *vbr;
unsigned long flags;
unsigned int len;
- spin_lock_irqsave(&vblk->vq_lock, flags);
+ spin_lock_irqsave(&vblk->vqs[qid].lock, flags);
do {
virtqueue_disable_cb(vq);
- while ((vbr = virtqueue_get_buf(vblk->vq,...
2014 Jun 22
2
[PATCH v1 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...ed to track minor number allocations. */
> int index;
> +
> + /* num of vqs */
> + int num_vqs;
> };
>
> struct virtblk_req
> @@ -133,14 +138,15 @@ static void virtblk_done(struct virtqueue *vq)
> {
> struct virtio_blk *vblk = vq->vdev->priv;
> bool req_done = false;
> + int qid = vq->index;
> struct virtblk_req *vbr;
> unsigned long flags;
> unsigned int len;
>
> - spin_lock_irqsave(&vblk->vq_lock, flags);
> + spin_lock_irqsave(&vblk->vq_lock[qid], flags);
> do {
> virtqueue_disable_cb(vq);
>...
2014 Jun 22
2
[PATCH v1 2/2] block: virtio-blk: support multi virt queues per virtio-blk device
...ed to track minor number allocations. */
> int index;
> +
> + /* num of vqs */
> + int num_vqs;
> };
>
> struct virtblk_req
> @@ -133,14 +138,15 @@ static void virtblk_done(struct virtqueue *vq)
> {
> struct virtio_blk *vblk = vq->vdev->priv;
> bool req_done = false;
> + int qid = vq->index;
> struct virtblk_req *vbr;
> unsigned long flags;
> unsigned int len;
>
> - spin_lock_irqsave(&vblk->vq_lock, flags);
> + spin_lock_irqsave(&vblk->vq_lock[qid], flags);
> do {
> virtqueue_disable_cb(vq);
>...
2014 Jun 26
6
[PATCH v3 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 26
6
[PATCH v3 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 26
7
[PATCH v2 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 26
7
[PATCH v2 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 13
6
[RFC PATCH 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2014 Jun 13
6
[RFC PATCH 0/2] block: virtio-blk: support multi vq per virtio-blk
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
2012 Aug 08
2
[PATCH V7 0/2] Improve virtio-blk performance
Hi, all
Changes in v7:
- Using vbr->flags to trace request type
- Dropped unnecessary struct virtio_blk *vblk parameter
- Reuse struct virtblk_req in bio done function
- Added performance data on normal SATA device and the reason why make it optional
Fio test shows bio-based IO path gives the following performance improvement:
1) Ramdisk device
With bio-based IO path, sequential
2012 Aug 08
2
[PATCH V7 0/2] Improve virtio-blk performance
Hi, all
Changes in v7:
- Using vbr->flags to trace request type
- Dropped unnecessary struct virtio_blk *vblk parameter
- Reuse struct virtblk_req in bio done function
- Added performance data on normal SATA device and the reason why make it optional
Fio test shows bio-based IO path gives the following performance improvement:
1) Ramdisk device
With bio-based IO path, sequential
2012 Aug 28
3
[PATCH v2 1/2] virtio-ring: Use threshold for switching to indirect descriptors
...UTEX(virtio_9p_lock);
static DECLARE_WAIT_QUEUE_HEAD(vp_wq);
@@ -501,6 +504,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
chan->vdev = vdev;
/* We expect one virtqueue, for requests. */
+ vdev->indirect_thresh = indirect_thresh;
chan->vq = virtio_find_single_vq(vdev, req_done, "requests");
if (IS_ERR(chan->vq)) {
err = PTR_ERR(chan->vq);
--
1.7.12
2012 Aug 28
3
[PATCH v2 1/2] virtio-ring: Use threshold for switching to indirect descriptors
...UTEX(virtio_9p_lock);
static DECLARE_WAIT_QUEUE_HEAD(vp_wq);
@@ -501,6 +504,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
chan->vdev = vdev;
/* We expect one virtqueue, for requests. */
+ vdev->indirect_thresh = indirect_thresh;
chan->vq = virtio_find_single_vq(vdev, req_done, "requests");
if (IS_ERR(chan->vq)) {
err = PTR_ERR(chan->vq);
--
1.7.12