It seems Changqi Lu might have left ByteDance, the email is bouncing
with a user not found error.
Any tips on how to proceed?
Alberto
On Wed, Nov 12, 2025 at 10:26 AM Alberto Faria <afaria@redhat.com> wrote:
>
> Hi Changqi,
>
> I wonder if you plan on following through with this series? It looks
> like it was/is very close to being merged. I can help or pick it up
> from here if you want, as I'm interested in seeing it merged.
>
> Thanks, Alberto
>
> On Fri, Oct 11, 2024 at 6:24 PM Changqi Lu <luchangqi.123@bytedance.com> wrote:
> >
> > Patch v14 has been modified, thanks to Stefan for the code review.
> >
> > v13->v14:
> > - Fix some protocol and spelling related issues at hw/nvme/ctrl.c.
> >
> > v12->v13:
> > - Fix byte swaps at hw/nvme/ctrl.c.
> >
> > v11->v12:
> > - Fixed endian conversion during command parsing;
> > - Add the maximum number of keys, currently limited to 128.
> >
> > v10->v11:
> > - Before executing the pr operation, check whether it is supported.
> > If it is not supported, return NVME_INVALID_OPCODE directly.
> >
> > v9->v10:
> > - When the driver does not support the pr operation, the error
> > code returned by nvme changes to Invalid Command Opcode.
> >
> > v8->v9:
> > - Fix double-free and remove persistent reservation operations at nvme_is_write().
> >
> > v7->v8:
> > - Fix num_keys may be less than 0 at scsi_pr_read_keys_complete().
> > - Fix buf memory leak at iscsi driver.
> >
> > v6->v7:
> > - Add buferlen size check at SCSI layer.
> > - Add pr_cap calculation in bdrv_merge_limits() function at block layer,
> > so the ugly bs->file->bs->bl.pr_cap in scsi and nvme layers was
> > changed to bs->bl.pr_cap.
> > - Fix memory leak at iscsi driver, and some other spelling errors.
> >
> > v5->v6:
> > - Add relevant comments in the io layer.
> >
> > v4->v5:
> > - Fixed a memory leak bug at hw/nvme/ctrl.c.
> >
> > v3->v4:
> > - At the nvme layer, the two patches of enabling the ONCS
> > function and enabling rescap are combined into one.
> > - At the nvme layer, add helper functions for pr capacity
> > conversion between the block layer and the nvme layer.
> >
> > v2->v3:
> > In v2 Persist Through Power Loss(PTPL) is enable default.
> > In v3 PTPL is supported, which is passed as a parameter.
> >
> > v1->v2:
> > - Add sg_persist --report-capabilities for SCSI protocol and enable
> > oncs and rescap for NVMe protocol.
> > - Add persistent reservation capabilities constants and helper functions for
> > SCSI and NVMe protocol.
> > - Add comments for necessary APIs.
> >
> > v1:
> > - Add seven APIs about persistent reservation command for block layer.
> > These APIs including reading keys, reading reservations, registering,
> > reserving, releasing, clearing and preempting.
> > - Add the necessary pr-related operation APIs for both the
> > SCSI protocol and NVMe protocol at the device layer.
> > - Add scsi driver at the driver layer to verify the functions
> >
> > Changqi Lu (10):
> > block: add persistent reservation in/out api
> > block/raw: add persistent reservation in/out driver
> > scsi/constant: add persistent reservation in/out protocol constants
> > scsi/util: add helper functions for persistent reservation types
> > conversion
> > hw/scsi: add persistent reservation in/out api for scsi device
> > block/nvme: add reservation command protocol constants
> > hw/nvme: add helper functions for converting reservation types
> > hw/nvme: enable ONCS and rescap function
> > hw/nvme: add reservation protocal command
> > block/iscsi: add persistent reservation in/out driver
> >
> > block/block-backend.c | 403 ++++++++++++++++++++++++++++
> > block/io.c | 164 ++++++++++++
> > block/iscsi.c | 428 ++++++++++++++++++++++++++++++
> > block/raw-format.c | 56 ++++
> > hw/nvme/ctrl.c | 350 +++++++++++++++++++++++-
> > hw/nvme/ns.c | 11 +
> > hw/nvme/nvme.h | 93 +++++++
> > hw/scsi/scsi-disk.c | 374 ++++++++++++++++++++++++++
> > include/block/block-common.h | 40 +++
> > include/block/block-io.h | 20 ++
> > include/block/block_int-common.h | 84 ++++++
> > include/block/nvme.h | 121 ++++++++-
> > include/scsi/constants.h | 52 ++++
> > include/scsi/utils.h | 8 +
> > include/sysemu/block-backend-io.h | 24 ++
> > scsi/utils.c | 81 ++++++
> > 16 files changed, 2307 insertions(+), 2 deletions(-)
> >
> > --
> > 2.20.1
> >
> >