search for: blk_queue_max_discard_seg

Displaying 20 results from an estimated 26 matches for "blk_queue_max_discard_seg".

[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
2017 Mar 28
6
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...io_size) blk_queue_io_opt(q, blk_size * opt_io_size); + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) { + q->limits.discard_zeroes_data = 0; + q->limits.discard_alignment = blk_size; + q->limits.discard_granularity = blk_size; + blk_queue_max_discard_sectors(q, UINT_MAX); + blk_queue_max_discard_segments(q, 1); + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); + } + virtio_device_ready(vdev); device_add_disk(&vdev->dev, vblk->disk); @@ -882,14 +902,14 @@ static int virtblk_restore(struct virtio_device *vdev) VIRTIO_BLK_F_SCSI, #endif VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOL...
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
2017 Mar 28
6
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...io_size) blk_queue_io_opt(q, blk_size * opt_io_size); + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) { + q->limits.discard_zeroes_data = 0; + q->limits.discard_alignment = blk_size; + q->limits.discard_granularity = blk_size; + blk_queue_max_discard_sectors(q, UINT_MAX); + blk_queue_max_discard_segments(q, 1); + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); + } + virtio_device_ready(vdev); device_add_disk(&vdev->dev, vblk->disk); @@ -882,14 +902,14 @@ static int virtblk_restore(struct virtio_device *vdev) VIRTIO_BLK_F_SCSI, #endif VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOL...
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...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(q, 256); + + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); + } + virtio_device_ready(vdev); device_add_disk(&vdev->dev, vblk->disk); @@ -874,14 +944,14 @@ static int virtblk_restore(struct virtio_device *vdev) VIRTIO_BLK_F_...
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...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(q, 256); + + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); + } + virtio_device_ready(vdev); device_add_disk(&vdev->dev, vblk->disk); @@ -874,14 +944,14 @@ static int virtblk_restore(struct virtio_device *vdev) VIRTIO_BLK_F_...
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...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_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_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_ma...
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...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_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_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_ma...
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
2017 Jul 04
0
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...tio_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(q, 256); > + > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > + } > + > virtio_device_ready(vdev); > > device_add_disk(&vdev->dev, vblk->disk); > @@ -874,14 +944,14 @@ static int virtblk_r...
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
2018 Mar 30
0
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...(vdev, struct virtio_blk_config, max_discard_sectors, &v); > + if (v) > + blk_queue_max_discard_sectors(q, v); > + else > + blk_queue_max_discard_sectors(q, UINT_MAX); > + > + virtio_cread(vdev, struct virtio_blk_config, max_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_sect...
[PATCH v8] virtio_blk: add discard and write zeroes support
2018 Oct 12
0
[PATCH v8] virtio_blk: add discard and write zeroes support
...uct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, + &v); + if (v && v <= MAX_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) + b...
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_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_que...
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 May 29
0
[PATCH v5] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, + &v); + if (v) + blk_queue_max_discard_segments(q, v); + else + blk_queue_max_discard_segments(q, USHRT_MAX); + + 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_ma...
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, + &v); + if (v) + blk_queue_max_discard_segments(q, v); + else + blk_queue_max_discard_segments(q, USHRT_MAX); + + 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_ma...
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 Jun 06
10
[PATCH v6] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, + &v); + if (v) + blk_queue_max_discard_segments(q, v); + else + blk_queue_max_discard_segments(q, USHRT_MAX); + + 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_ma...
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
2017 Jul 05
2
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
..., 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(q, 256); > > + > > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > > + } > > + > > virtio_device_ready(vdev); > > > > device_add_disk(&vdev->dev, vblk->disk); >...
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
2017 Jul 05
2
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
..., 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(q, 256); > > + > > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > > + } > > + > > virtio_device_ready(vdev); > > > > device_add_disk(&vdev->dev, vblk->disk); >...
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
2017 Mar 28
1
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...gt; > + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) { > > + q->limits.discard_zeroes_data = 0; > > + q->limits.discard_alignment = blk_size; > > + q->limits.discard_granularity = blk_size; > > + blk_queue_max_discard_sectors(q, UINT_MAX); > > + blk_queue_max_discard_segments(q, 1); > > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > > + } > > Please add configuration space fields for these limits. Looking at the > virtio-scsi block limits code in QEMU's scsi_disk_emulate_inquiry() I > can see that the hypervisor has useful values...
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
2017 Mar 28
1
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...gt; > + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) { > > + q->limits.discard_zeroes_data = 0; > > + q->limits.discard_alignment = blk_size; > > + q->limits.discard_granularity = blk_size; > > + blk_queue_max_discard_sectors(q, UINT_MAX); > > + blk_queue_max_discard_segments(q, 1); > > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > > + } > > Please add configuration space fields for these limits. Looking at the > virtio-scsi block limits code in QEMU's scsi_disk_emulate_inquiry() I > can see that the hypervisor has useful values...
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_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_que...
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
2018 May 29
2
[PATCH v4] virtio_blk: add DISCARD and WRIET ZEROES commands support
...ignment = 0; + + virtio_cread(vdev, struct virtio_blk_config, + max_discard_sectors, &v); + if (v) + blk_queue_max_discard_sectors(q, v); + else + blk_queue_max_discard_sectors(q, UINT_MAX); + + virtio_cread(vdev, struct virtio_blk_config, max_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_que...
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
2017 Mar 27
0
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...specify a discard feature. Note that Linux 4.11 and later have support for multi-range discard ala ATA TRIM, SCSI UNMAP and NVMe deallocate which might be useful here, too. > + q->limits.discard_zeroes_data = 0; No need to clear this. Also hopefully this field goes away for 4.12 > + blk_queue_max_discard_segments(q, 1); No need to set this.