Displaying 20 results from an estimated 190 matches for "virtio_blk_config".
2008 Apr 16
1
[PATCH] add virtio disk geometry feature
...ectors = 1 << 5;
- geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+ struct virtio_blk *vblk = bd->bd_disk->private_data;
+ int err = 0;
+
+ /* see if the host passed in geometry config */
+ err = virtio_config_val(vblk->vdev, VIRTIO_BLK_F_GEOMETRY,
+ offsetof(struct virtio_blk_config, cylinders),
+ &geo->cylinders);
+
+ /* if host sets geo flag, all 3 values must be present */
+ if (!err) {
+ __virtio_config_val(vblk->vdev,
+ offsetof(struct virtio_blk_config, heads),
+ &geo->heads);
+ __virtio_config_val(vblk->vdev,
+ offsetof(struct virtio_b...
2008 Apr 16
1
[PATCH] add virtio disk geometry feature
...ectors = 1 << 5;
- geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+ struct virtio_blk *vblk = bd->bd_disk->private_data;
+ int err = 0;
+
+ /* see if the host passed in geometry config */
+ err = virtio_config_val(vblk->vdev, VIRTIO_BLK_F_GEOMETRY,
+ offsetof(struct virtio_blk_config, cylinders),
+ &geo->cylinders);
+
+ /* if host sets geo flag, all 3 values must be present */
+ if (!err) {
+ __virtio_config_val(vblk->vdev,
+ offsetof(struct virtio_blk_config, heads),
+ &geo->heads);
+ __virtio_config_val(vblk->vdev,
+ offsetof(struct virtio_b...
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
..._IN);
@@ -777,6 +835,38 @@ static int virtblk_probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config, discard_sector_alignment, &v);
+ if (v)
+ q->limits.discard_alignment = v << 9;
+ else
+ q->limits.discard_alignment = 0;
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_sectors, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_m...
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
..._IN);
@@ -777,6 +835,38 @@ static int virtblk_probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config, discard_sector_alignment, &v);
+ if (v)
+ q->limits.discard_alignment = v << 9;
+ else
+ q->limits.discard_alignment = 0;
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_sectors, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_m...
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2018 Nov 01
1
[PATCH v9] virtio_blk: add discard and write zeroes support
...nt virtblk_probe(struct virtio_device *vdev)
> if (!err && opt_io_size)
> blk_queue_io_opt(q, blk_size * opt_io_size);
>
> + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
> + q->limits.discard_granularity = blk_size;
> +
> + virtio_cread(vdev, struct virtio_blk_config,
> + discard_sector_alignment, &v);
> + q->limits.discard_alignment = v ? v << SECTOR_SHIFT : 0;
> +
> + virtio_cread(vdev, struct virtio_blk_config,
> + max_discard_sectors, &v);
> + blk_queue_max_discard_sectors(q, v ? v : UINT_MAX);
> +
>...
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_alignment = blk_size;
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, -1U);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_num, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments...
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_alignment = blk_size;
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, -1U);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_num, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments...
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2018 Mar 30
0
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...nt virtblk_probe(struct virtio_device *vdev)
> if (!err && opt_io_size)
> blk_queue_io_opt(q, blk_size * opt_io_size);
>
> + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
> + q->limits.discard_granularity = blk_size;
> +
> + virtio_cread(vdev, struct virtio_blk_config, discard_sector_alignment, &v);
> + if (v)
> + q->limits.discard_alignment = v << 9;
> + else
> + q->limits.discard_alignment = 0;
> +
> + virtio_cread(vdev, struct virtio_blk_config, max_discard_sectors, &v);
> + if (v)
> + blk_queue_max_discar...
2018 Oct 12
0
[PATCH v8] virtio_blk: add discard and write zeroes support
...RITE)
@@ -777,6 +832,42 @@ static int virtblk_probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config,
+ discard_sector_alignment, &v);
+ if (v)
+ q->limits.discard_alignment = v << SECTOR_SHIFT;
+ else
+ q->limits.discard_alignment = 0;
+
+ virtio_cread(vdev, struct virtio_blk_config,
+ max_discard_sectors, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+...
2018 Nov 01
0
[PATCH v9] virtio_blk: add discard and write zeroes support
...RITE)
@@ -802,6 +855,32 @@ static int virtblk_probe(struct virtio_device *vdev)
if (!err && opt_io_size)
blk_queue_io_opt(q, blk_size * opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_granularity = blk_size;
+
+ virtio_cread(vdev, struct virtio_blk_config,
+ discard_sector_alignment, &v);
+ q->limits.discard_alignment = v ? v << SECTOR_SHIFT : 0;
+
+ virtio_cread(vdev, struct virtio_blk_config,
+ max_discard_sectors, &v);
+ blk_queue_max_discard_sectors(q, v ? v : UINT_MAX);
+
+ virtio_cread(vdev, struct virtio_blk...
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ors for DISCARD and WRITE
ZEROES, if both DISCARD and WRITE ZEROES are supported, field 'unmap'
maybe used for WRITE ZEROES command with DISCARD enabled.
We also extended the virtio-blk configuration space to let backend
device put DISCARD and WRITE ZEROES configuration parameters.
struct virtio_blk_config {
[...]
le32 max_discard_sectors;
le32 max_discard_seg;
le32 discard_sector_alignment;
le32 max_write_zeroes_sectors;
le32 max_write_zeroes_seg;
u8 write_zeroes_may_unmap;
}
New feature bit [VIRTIO_BLK_F_DISCARD (13)]: Device can support dis...
2017 Jun 09
3
[PATCH v1] virtio_blk: Use sysfs_match_string() helper
...->vdev, VIRTIO_BLK_F_CONFIG_WCE));
- for (i = ARRAY_SIZE(virtblk_cache_types); --i >= 0; )
- if (sysfs_streq(buf, virtblk_cache_types[i]))
- break;
-
+ i = sysfs_match_string(virtblk_cache_types, buf);
if (i < 0)
- return -EINVAL;
+ return i;
virtio_cwrite8(vdev, offsetof(struct virtio_blk_config, wce), i);
virtblk_update_cache_mode(vdev);
--
2.11.0
2017 Jun 09
3
[PATCH v1] virtio_blk: Use sysfs_match_string() helper
...->vdev, VIRTIO_BLK_F_CONFIG_WCE));
- for (i = ARRAY_SIZE(virtblk_cache_types); --i >= 0; )
- if (sysfs_streq(buf, virtblk_cache_types[i]))
- break;
-
+ i = sysfs_match_string(virtblk_cache_types, buf);
if (i < 0)
- return -EINVAL;
+ return i;
virtio_cwrite8(vdev, offsetof(struct virtio_blk_config, wce), i);
virtblk_update_cache_mode(vdev);
--
2.11.0
2020 Aug 05
1
[PATCH v3 06/38] virtio_blk: correct tags for config space fields
...+++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 0f99d7b49ede..d888f013d9ff 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -57,20 +57,20 @@
struct virtio_blk_config {
/* The capacity (in 512-byte sectors). */
- __u64 capacity;
+ __virtio64 capacity;
/* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */
- __u32 size_max;
+ __virtio32 size_max;
/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
- __u32 seg_max;
+ __virtio32 seg_max;
/* ge...
2013 Apr 05
8
[PATCH 0/7] virtio cleanups
Aiming these for coming merge window.
Nothing should change, but get ready for a non-guest-endian config transports,
and > 32 features bits.
Final one is just an overdue consolidation.
Cheers,
Rusty.
Rusty Russell (7):
virtio_config: introduce size-based accessors.
virtio: use size-based config accessors.
virtio_config: helpers for non-converting accessors.
virtio_config: make