RE: [PATCH v4 0/9] Add SDUC Support

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> 
> On 25/08/24 10:41, Avri Altman wrote:
> > Ultra Capacity SD cards (SDUC) was already introduced in SD7.0.  Those
> > cards support capacity larger than 2TB and up to including 128TB.
> > Thus, the address range of the card expands beyond the 32-bit command
> > argument. To that end, a new command - CMD22 is defined, to carry the
> > extra 6-bit upper part of the 38-bit block address that enable access
> > to 128TB memory space.
> >
> > SDUC capacity is agnostic to the interface mode: UHS-I and UHS-II –
> > Same as SDXC.
> >
> > The spec defines several extensions/modifications to the current SDXC
> > cards, which we address in patches 1 - 10.  Otherwise requirements are
> > out-of-scope of this change.  Specifically, CMDQ (CMD44+CMD45), and
> > Extension for Video Speed Class (CMD20).
> >
> > First publication of SDUC was in [1].  This series was developed and
> > tested separately from [1] and does not borrow from it.
> >
> > [1] https://lwn.net/Articles/982566/
> 
> Perhaps add support for mmc_test, and it would be better if enabling SDUC
> was the last patch, so bisecting doesn't leave a kernel that half-supports SDUC.
Done.

Thanks,
Avri

> 
> >
> > ---
> > Changes in v4:
> >  - Squash patches 1 & 2 (Ulf)
> >  - Amend SD_OCR_2T to SD_OCR_CCS in mmc_sd_get_cid (Ulf)
> >  - Use card state instead of caps2 (Ricky & Ulf)
> >  - Switch patches 5 & 6 (Ulf)
> >
> > Changes in v3:
> >  - Some more kernel test robot fixes
> >  - Fix a typo in a commit log (Ricky WU)
> >  - Fix ACMD22 returned value
> >  - Add 'Tested-by' tag for the whole series (Ricky WU)
> >
> > Changes in v2:
> >  - Attend kernel test robot warnings
> >
> > ---
> >
> > Avri Altman (9):
> >   mmc: sd: SDUC Support Recognition
> >   mmc: sd: Add Extension memory addressing
> >   mmc: core: Add open-ended Ext memory addressing
> >   mmc: core: Add close-ended Ext memory addressing
> >   mmc: host: Always use manual-cmd23 in SDUC
> >   mmc: host: Add close-ended Ext memory addressing
> >   mmc: core: Allow mmc erase to carry large addresses
> >   mmc: core: Add Ext memory addressing for erase
> >   mmc: core: Adjust ACMD22 to SDUC
> >
> >  drivers/mmc/core/block.c  | 56 ++++++++++++++++++++++++++++------
> >  drivers/mmc/core/bus.c    |  4 ++-
> >  drivers/mmc/core/card.h   |  3 ++
> >  drivers/mmc/core/core.c   | 63 ++++++++++++++++++++++++++++---------
> --
> >  drivers/mmc/core/core.h   | 14 +++++++--
> >  drivers/mmc/core/queue.h  |  1 +
> >  drivers/mmc/core/sd.c     | 36 ++++++++++++++--------
> >  drivers/mmc/core/sd.h     |  2 +-
> >  drivers/mmc/core/sd_ops.c | 16 ++++++++++  drivers/mmc/core/sd_ops.h
> > |  1 +
> >  drivers/mmc/core/sdio.c   |  2 +-
> >  drivers/mmc/host/sdhci.c  | 40 +++++++++++++++++++++----
> > include/linux/mmc/card.h  |  2 +-  include/linux/mmc/core.h  |  1 +
> >  include/linux/mmc/sd.h    |  4 +++
> >  15 files changed, 195 insertions(+), 50 deletions(-)
> >





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