search for: slba

Displaying 7 results from an estimated 7 matches for "slba".

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2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...32 block_size = queue_logical_block_size(req->q); + struct virtio_blk_discard *range; + struct bio *bio; + + if (block_size < 512 || !block_size) + return -1; + + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); + if (!range) + return -1; + + __rq_for_each_bio(bio, req) { + u64 slba = (bio->bi_iter.bi_sector << 9) / block_size; + u32 nlb = bio->bi_iter.bi_size / block_size; + + range[n].reserved = cpu_to_le32(0); + range[n].nlba = cpu_to_le32(nlb); + range[n].slba = cpu_to_le64(slba); + n++; + } + + if (WARN_ON_ONCE(n != segments)) { + kfree(range); + return...
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...32 block_size = queue_logical_block_size(req->q); + struct virtio_blk_discard *range; + struct bio *bio; + + if (block_size < 512 || !block_size) + return -1; + + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); + if (!range) + return -1; + + __rq_for_each_bio(bio, req) { + u64 slba = (bio->bi_iter.bi_sector << 9) / block_size; + u32 nlb = bio->bi_iter.bi_size / block_size; + + range[n].reserved = cpu_to_le32(0); + range[n].nlba = cpu_to_le32(nlb); + range[n].slba = cpu_to_le64(slba); + n++; + } + + if (WARN_ON_ONCE(n != segments)) { + kfree(range); + return...
2017 Jul 04
0
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...struct virtio_blk_discard *range; > + struct bio *bio; > + > + if (block_size < 512 || !block_size) > + return -1; > + > + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); > + if (!range) > + return -1; > + > + __rq_for_each_bio(bio, req) { > + u64 slba = (bio->bi_iter.bi_sector << 9) / block_size; > + u32 nlb = bio->bi_iter.bi_size / block_size; > + > + range[n].reserved = cpu_to_le32(0); > + range[n].nlba = cpu_to_le32(nlb); > + range[n].slba = cpu_to_le64(slba); > + n++; > + } > + > + if (WARN_ON_ONCE...
2017 Jul 05
2
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...o *bio; > > + > > + if (block_size < 512 || !block_size) > > + return -1; > > + > > + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); > > + if (!range) > > + return -1; > > + > > + __rq_for_each_bio(bio, req) { > > + u64 slba = (bio->bi_iter.bi_sector << 9) / block_size; > > + u32 nlb = bio->bi_iter.bi_size / block_size; > > + > > + range[n].reserved = cpu_to_le32(0); > > + range[n].nlba = cpu_to_le32(nlb); > > + range[n].slba = cpu_to_le64(slba); > > + n++; > >...
2017 Jul 05
2
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...o *bio; > > + > > + if (block_size < 512 || !block_size) > > + return -1; > > + > > + range = kmalloc_array(segments, sizeof(*range), GFP_ATOMIC); > > + if (!range) > > + return -1; > > + > > + __rq_for_each_bio(bio, req) { > > + u64 slba = (bio->bi_iter.bi_sector << 9) / block_size; > > + u32 nlb = bio->bi_iter.bi_size / block_size; > > + > > + range[n].reserved = cpu_to_le32(0); > > + range[n].nlba = cpu_to_le32(nlb); > > + range[n].slba = cpu_to_le64(slba); > > + n++; > >...
2015 Sep 10
6
[RFC PATCH 0/2] virtio nvme
Hi all, These 2 patches added virtio-nvme to kernel and qemu, basically modified from virtio-blk and nvme code. As title said, request for your comments. Play it in Qemu with: -drive file=disk.img,format=raw,if=none,id=D22 \ -device virtio-nvme-pci,drive=D22,serial=1234,num_queues=4 The goal is to have a full NVMe stack from VM guest(virtio-nvme) to host(vhost_nvme) to LIO NVMe-over-fabrics
2015 Sep 10
6
[RFC PATCH 0/2] virtio nvme
Hi all, These 2 patches added virtio-nvme to kernel and qemu, basically modified from virtio-blk and nvme code. As title said, request for your comments. Play it in Qemu with: -drive file=disk.img,format=raw,if=none,id=D22 \ -device virtio-nvme-pci,drive=D22,serial=1234,num_queues=4 The goal is to have a full NVMe stack from VM guest(virtio-nvme) to host(vhost_nvme) to LIO NVMe-over-fabrics