Displaying 20 results from an estimated 20 matches for "max_write_zeroes_sectors".
2018 Jun 07
2
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...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 discard
> > command, maximum discard sectors size in field 'max_discard_sectors' and
> > max...
2018 Jun 07
2
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...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 discard
> > command, maximum discard sectors size in field 'max_discard_sectors' and
> > max...
2020 Aug 05
1
[PATCH v3 06/38] virtio_blk: correct tags for config space fields
...must be aligned to this number of sectors. */
- __u32 discard_sector_alignment;
+ __virtio32 discard_sector_alignment;
/* the next 3 entries are guarded by VIRTIO_BLK_F_WRITE_ZEROES */
/*
* The maximum number of write zeroes sectors (in 512-byte sectors) in
* one segment.
*/
- __u32 max_write_zeroes_sectors;
+ __virtio32 max_write_zeroes_sectors;
/*
* The maximum number of segments in a write zeroes
* command.
*/
- __u32 max_write_zeroes_seg;
+ __virtio32 max_write_zeroes_seg;
/*
* Set if a VIRTIO_BLK_T_WRITE_ZEROES request may result in the
* deallocation of one or more of the sect...
2018 Jun 11
1
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...t;
> > > > 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 discard
> > > > command, maximum discard sectors s...
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 Jun 07
0
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...onfiguration 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 discard
> command, maximum discard sectors size in field 'max_discard_sectors' and
> maximum discard segment number in fie...
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...D 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 discard
command, maximum discard sectors size in field 'max_discard_sectors' and
maximum discard segment number in field 'max_discard_seg'.
New...
2018 Jun 08
0
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...figuration 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 discard
> > > command, maximum discard sectors size in field 'max_discard_...
2020 Aug 03
0
[PATCH v2 06/24] virtio_blk: correct tags for config space fields
...must be aligned to this number of sectors. */
- __u32 discard_sector_alignment;
+ __virtio32 discard_sector_alignment;
/* the next 3 entries are guarded by VIRTIO_BLK_F_WRITE_ZEROES */
/*
* The maximum number of write zeroes sectors (in 512-byte sectors) in
* one segment.
*/
- __u32 max_write_zeroes_sectors;
+ __virtio32 max_write_zeroes_sectors;
/*
* The maximum number of segments in a write zeroes
* command.
*/
- __u32 max_write_zeroes_seg;
+ __virtio32 max_write_zeroes_seg;
/*
* Set if a VIRTIO_BLK_T_WRITE_ZEROES request may result in the
* deallocation of one or more of the sect...
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, USHRT_MAX);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config, max_write_zeroes_sectors, &v);
+ if (v)
+ blk_queue_max_write_zeroes_sectors(q, v);
+ else
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
+ }
+
virtblk_update_capacity(vblk, false);
virtio_device_ready(vdev);
@@ -885,14 +975,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCS...
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, USHRT_MAX);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config, max_write_zeroes_sectors, &v);
+ if (v)
+ blk_queue_max_write_zeroes_sectors(q, v);
+ else
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
+ }
+
virtblk_update_capacity(vblk, false);
virtio_device_ready(vdev);
@@ -885,14 +975,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCS...
2018 Nov 01
1
[PATCH v9] virtio_blk: add discard and write zeroes support
...scard_segments(q,
> + min_not_zero(v,
> + MAX_DISCARD_SEGMENTS));
> +
> + blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
> + }
> +
> + if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
> + virtio_cread(vdev, struct virtio_blk_config,
> + max_write_zeroes_sectors, &v);
> + blk_queue_max_write_zeroes_sectors(q, v ? v : UINT_MAX);
> + }
> +
> virtblk_update_capacity(vblk, false);
> virtio_device_ready(vdev);
>
> @@ -895,14 +974,14 @@ static unsigned int features_legacy[] = {
> VIRTIO_BLK_F_SCSI,
> #endif
> VIRTIO_...
2018 Mar 30
0
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...queue_max_discard_segments(q, v);
> + else
> + blk_queue_max_discard_segments(q, USHRT_MAX);
> +
> + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
> + }
> +
> + if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
> + virtio_cread(vdev, struct virtio_blk_config, max_write_zeroes_sectors, &v);
> + if (v)
> + blk_queue_max_write_zeroes_sectors(q, v);
> + else
> + blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
> + }
> +
> virtblk_update_capacity(vblk, false);
> virtio_device_ready(vdev);
>
> @@ -885,14 +975,14 @@ static int virtblk_rest...
2018 Oct 12
0
[PATCH v8] virtio_blk: add discard and write zeroes support
...AX_DISCARD_SEGMENTS)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, MAX_DISCARD_SEGMENTS);
+
+ blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config,
+ max_write_zeroes_sectors, &v);
+ if (v)
+ blk_queue_max_write_zeroes_sectors(q, v);
+ else
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
+ }
+
virtblk_update_capacity(vblk, false);
virtio_device_ready(vdev);
@@ -885,14 +976,14 @@ static unsigned int features_legacy[] = {
VIRTIO_BLK_F_SCSI,
#endif...
2018 Nov 01
0
[PATCH v9] virtio_blk: add discard and write zeroes support
...rd_seg,
+ &v);
+ blk_queue_max_discard_segments(q,
+ min_not_zero(v,
+ MAX_DISCARD_SEGMENTS));
+
+ blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config,
+ max_write_zeroes_sectors, &v);
+ blk_queue_max_write_zeroes_sectors(q, v ? v : UINT_MAX);
+ }
+
virtblk_update_capacity(vblk, false);
virtio_device_ready(vdev);
@@ -895,14 +974,14 @@ static unsigned int features_legacy[] = {
VIRTIO_BLK_F_SCSI,
#endif
VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_C...
2020 Aug 03
51
[PATCH v2 00/24] virtio: config space endian-ness cleanup
Config space endian-ness is currently a mess: fields are
not tagged with the correct endian-ness so it's easy
to make mistakes like instanciating config space in
native endian-ness.
The following patches adding sparse tagging are currently in my tree.
Lightly tested.
As a follow-up, I plan to add new APIs that handle modern config space
in a more efficient way (bypassing the version check).