On Thu, Mar 23, 2023 at 01:28:24PM +0800, Sam Li wrote: > This patch adds zoned storage emulation to the virtio-blk driver. > > The patch implements the virtio-blk ZBD support standardization that is > recently accepted by virtio-spec. The link to related commit is at > > https://github.com/oasis-tcs/virtio-spec/commit/b4e8efa0fa6c8d844328090ad15db65af8d7d981 > > The Linux zoned device code that implemented by Dmitry Fomichev has been > released at the latest Linux version v6.3-rc1. > > Aside: adding zoned=on alike options to virtio-blk device will be > considered in following-up plan. > > v7: > - address Stefan's review comments > * rm aio_context_acquire/release in handle_req > * rename function return type > * rename BLOCK_ACCT_APPEND to BLOCK_ACCT_ZONE_APPEND for clarity > > v6: > - update headers to v6.3-rc1 > > v5: > - address Stefan's review comments > * restore the way writing zone append result to buffer > * fix error checking case and other errands > > v4: > - change the way writing zone append request result to buffer > - change zone state, zone type value of virtio_blk_zone_descriptor > - add trace events for new zone APIs > > v3: > - use qemuio_from_buffer to write status bit [Stefan] > - avoid using req->elem directly [Stefan] > - fix error checkings and memory leak [Stefan] > > v2: > - change units of emulated zone op coresponding to block layer APIs > - modify error checking cases [Stefan, Damien] > > v1: > - add zoned storage emulation > > Sam Li (4): > include: update virtio_blk headers to v6.3-rc1 > virtio-blk: add zoned storage emulation for zoned devices > block: add accounting for zone append operation > virtio-blk: add some trace events for zoned emulation > > block/qapi-sysemu.c | 11 + > block/qapi.c | 18 + > hw/block/trace-events | 7 + > hw/block/virtio-blk-common.c | 2 + > hw/block/virtio-blk.c | 405 +++++++++++++++++++ > include/block/accounting.h | 1 + > include/standard-headers/drm/drm_fourcc.h | 12 + > include/standard-headers/linux/ethtool.h | 48 ++- > include/standard-headers/linux/fuse.h | 45 ++- > include/standard-headers/linux/pci_regs.h | 1 + > include/standard-headers/linux/vhost_types.h | 2 + > include/standard-headers/linux/virtio_blk.h | 105 +++++ > linux-headers/asm-arm64/kvm.h | 1 + > linux-headers/asm-x86/kvm.h | 34 +- > linux-headers/linux/kvm.h | 9 + > linux-headers/linux/vfio.h | 15 +- > linux-headers/linux/vhost.h | 8 + > qapi/block-core.json | 62 ++- > qapi/block.json | 4 + > 19 files changed, 769 insertions(+), 21 deletions(-) > > -- > 2.39.2 > I'll wait for the next version that addresses the comments before merging, but I'm happy now: Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
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