[v2,00/10] Add SDUC Support

Message

Avri Altman Aug. 7, 2024, 6:02 a.m. UTC

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/

---
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  | 45 +++++++++++++++++++++++++++++-------
 drivers/mmc/core/bus.c    |  4 +++-
 drivers/mmc/core/card.h   |  3 +++
 drivers/mmc/core/core.c   | 48 +++++++++++++++++++++++++++++++--------
 drivers/mmc/core/core.h   |  2 +-
 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, 169 insertions(+), 36 deletions(-)

Comments

Ricky WU Aug. 9, 2024, 6:54 a.m. UTC | #1

Hi Avri,

I tested this SDUC patch for Realtek card readers and it works  


> 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/
> 
> ---
> 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  | 45 +++++++++++++++++++++++++++++-------
>  drivers/mmc/core/bus.c    |  4 +++-
>  drivers/mmc/core/card.h   |  3 +++
>  drivers/mmc/core/core.c   | 48 +++++++++++++++++++++++++++++++--------
>  drivers/mmc/core/core.h   |  2 +-
>  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, 169 insertions(+), 36 deletions(-)
> 
> --
> 2.25.1

Avri Altman Aug. 9, 2024, 7:37 a.m. UTC | #2

> 
> Hi Avri,
> 
> I tested this SDUC patch for Realtek card readers and it works
Ricky thanks.  Will add your "Tested-by" tag to my next spin.

Would appreciate any further constructive reviews - helping to move this series forward.
Thanks a lot,
Avri