On Thu, 16 May 2024 10:05:33 -0700
fan <nifan....@gmail.com> wrote:

> On Fri, Apr 19, 2024 at 02:24:36PM -0400, Gregory Price wrote:
> > On Thu, Apr 18, 2024 at 04:10:51PM -0700, nifan....@gmail.com wrote:  
> > > A git tree of this series can be found here (with one extra commit on top
> > > for printing out accepted/pending extent list): 
> > > https://github.com/moking/qemu/tree/dcd-v7
> > > 
> > > v6->v7:
> > > 
> > > 1. Fixed the dvsec range register issue mentioned in the the cover letter 
> > > in v6.
> > >    Only relevant bits are set to mark the device ready (Patch 6). 
> > > (Jonathan)
> > > 2. Moved the if statement in cxl_setup_memory from Patch 6 to Patch 4. 
> > > (Jonathan)
> > > 3. Used MIN instead of if statement to get record_count in Patch 7. 
> > > (Jonathan)
> > > 4. Added "Reviewed-by" tag to Patch 7.
> > > 5. Modified cxl_dc_extent_release_dry_run so the updated extent list can 
> > > be
> > >    reused in cmd_dcd_release_dyn_cap to simplify the process in Patch 8. 
> > > (Jørgen) 
> > > 6. Added comments to indicate further "TODO" items in 
> > > cmd_dcd_add_dyn_cap_rsp.
> > >     (Jonathan)
> > > 7. Avoided irrelevant code reformat in Patch 8. (Jonathan)
> > > 8. Modified QMP interfaces for adding/releasing DC extents to allow 
> > > passing
> > >    tags, selection policy, flags in the interface. (Jonathan, Gregory)
> > > 9. Redesigned the pending list so extents in the same requests are grouped
> > >     together. A new data structure is introduced to represent "extent 
> > > group"
> > >     in pending list.  (Jonathan)
> > > 10. Added support in QMP interface for "More" flag. 
> > > 11. Check "Forced removal" flag for release request and not let it pass 
> > > through.
> > > 12. Removed the dynamic capacity log type from CxlEventLog definition in 
> > > cxl.json
> > >    to avoid the side effect it may introduce to inject error to DC event 
> > > log.
> > >    (Jonathan)
> > > 13. Hard coded the event log type to dynamic capacity event log in QMP
> > >     interfaces. (Jonathan)
> > > 14. Adding space in between "-1]". (Jonathan)
> > > 15. Some minor comment fixes.
> > > 
> > > The code is tested with similar setup and has passed similar tests as 
> > > listed
> > > in the cover letter of v5[1] and v6[2].
> > > Also, the code is tested with the latest DCD kernel patchset[3].
> > > 
> > > [1] Qemu DCD patchset v5: 
> > > https://lore.kernel.org/linux-cxl/20240304194331.1586191-1-nifan....@gmail.com/T/#t
> > > [2] Qemu DCD patchset v6: 
> > > https://lore.kernel.org/linux-cxl/20240325190339.696686-1-nifan....@gmail.com/T/#t
> > > [3] DCD kernel patches: 
> > > https://lore.kernel.org/linux-cxl/20240324-dcd-type2-upstream-v1-0-b7b00d623...@intel.com/T/#m11c571e21c4fe17c7d04ec5c2c7bc7cbf2cd07e3
> > >  
> > 
> > added review to all patches, will hopefully be able to add a Tested-by
> > tag early next week, along with a v1 RFC for MHD bit-tracking.
> > 
> > We've been testing v5/v6 for a bit, so I expect as soon as we get the
> > MHD code ported over to v7 i'll ship a tested-by tag pretty quick.
> > 
> > The super-set release will complicate a few things but this doesn't
> > look like a blocker on our end, just a change to how we track bits in a
> > shared bit/bytemap.
> >   
> 
> Hi Gregory,
> I am planning to address all the concerns in this series and send out v8
> next week. Jonathan mentioned you have few related patches built on top
> of this series, can you point me to the latest version so I can look
> into it? Also, would you like me to carry them over to send together
> with my series in next version? It could be easier for you to avoid the
> potential rebase needed for your patches?

I wasn't clear - I meant other way around.
This series is built on a couple of Gregory's patches.  Gregory can suffer
the pain of rebasing his stuff ;) (or I'll do it depending on when things
land).

hw/cxl/mailbox: change CCI cmd set structure to be a member, not a reference 
https://gitlab.com/jic23/qemu/-/commit/f44ebc5a455ccdd6535879b0c5824e0d76b04da5
hw/cxl/mailbox: interface to add CCI commands to an existing CCI 
https://gitlab.com/jic23/qemu/-/commit/00a4dd8b388add03c588298f665ee918626296a5

I was suggesting your next posting should just include those two with
your sign-off added. That way if everyone is happy with v8 Michael Tsirkin
can pick it up directly, saving a step.

Make sure to add Michael to the to list as well for next version.

Thanks,

Jonathan

> 
> Let me know.
> 
> Thanks,
> Fan
> 
> > > 
> > > Fan Ni (12):
> > >   hw/cxl/cxl-mailbox-utils: Add dc_event_log_size field to output
> > >     payload of identify memory device command
> > >   hw/cxl/cxl-mailbox-utils: Add dynamic capacity region representative
> > >     and mailbox command support
> > >   include/hw/cxl/cxl_device: Rename mem_size as static_mem_size for
> > >     type3 memory devices
> > >   hw/mem/cxl_type3: Add support to create DC regions to type3 memory
> > >     devices
> > >   hw/mem/cxl-type3: Refactor ct3_build_cdat_entries_for_mr to take mr
> > >     size instead of mr as argument
> > >   hw/mem/cxl_type3: Add host backend and address space handling for DC
> > >     regions
> > >   hw/mem/cxl_type3: Add DC extent list representative and get DC extent
> > >     list mailbox support
> > >   hw/cxl/cxl-mailbox-utils: Add mailbox commands to support add/release
> > >     dynamic capacity response
> > >   hw/cxl/events: Add qmp interfaces to add/release dynamic capacity
> > >     extents
> > >   hw/mem/cxl_type3: Add DPA range validation for accesses to DC regions
> > >   hw/cxl/cxl-mailbox-utils: Add superset extent release mailbox support
> > >   hw/mem/cxl_type3: Allow to release extent superset in QMP interface
> > > 
> > >  hw/cxl/cxl-mailbox-utils.c  | 620 ++++++++++++++++++++++++++++++++++-
> > >  hw/mem/cxl_type3.c          | 633 +++++++++++++++++++++++++++++++++---
> > >  hw/mem/cxl_type3_stubs.c    |  20 ++
> > >  include/hw/cxl/cxl_device.h |  81 ++++-
> > >  include/hw/cxl/cxl_events.h |  18 +
> > >  qapi/cxl.json               |  69 ++++
> > >  6 files changed, 1396 insertions(+), 45 deletions(-)
> > > 
> > > -- 
> > > 2.43.0
> > >   


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