Re: [PATCH v3 00/10] Add SDUC Support

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On Wed, 14 Aug 2024 at 09:31, Avri Altman <avri.altman@xxxxxxx> 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/

I realized that you didn't send this to Adrian Hunter. Please re-post
and add him, I am sure he will have some valuable feedback for us.

Kind regards
Uffe

>
> ---
> 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 (10):
>   mmc: sd: SDUC Support Recognition
>   mmc: sd: Add SD CSD version 3.0
>   mmc: sd: Add Extension memory addressing
>   mmc: core: Add open-ended Ext memory addressing
>   mmc: host: Always use manual-cmd23 in SDUC
>   mmc: core: Add close-ended Ext memory addressing
>   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  | 62 ++++++++++++++++++++++++++++++++------
>  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     | 16 ++++++----
>  drivers/mmc/core/sd_ops.c | 34 ++++++++++++++++++---
>  drivers/mmc/core/sd_ops.h |  1 +
>  drivers/mmc/host/sdhci.c  | 38 +++++++++++++++++++----
>  include/linux/mmc/card.h  |  2 +-
>  include/linux/mmc/core.h  |  1 +
>  include/linux/mmc/host.h  |  6 ++++
>  include/linux/mmc/sd.h    |  4 +++
>  14 files changed, 204 insertions(+), 45 deletions(-)
>
> --
> 2.25.1
>





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