Re: [PATCH 00/12] mmc: core: Improve code for polling and HW busy detect

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On Tue, Feb 11, 2020 at 9:17 PM Baolin Wang <baolin.wang7@xxxxxxxxx> wrote:
>
> Hi Ulf,
>
> On Tue, Feb 4, 2020 at 4:55 PM Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
> >
> > There exists several separate variants of polling loops, used to detect when
> > the card stop signals busy for various operations, in the mmc core. All of them
> > have different issues that needs to be fixed.
> >
> > The intent with this series, is to address some of these problems, via first
> > improving the mmc_poll_for_busy() function, then consolidate code by moving
> > more users to it.
> >
> > While I was working on this, I stumbled over some code here and there, that
> > deserved some cleanup, hence I also folded in a couple of patches for this.
> >
> > So far, I have only managed to extensively test the updated mmc_poll_for_busy()
> > function for CMD6 commands. Some tests for erase/trim/discard and for
> > HPI+sanitize are needed.
> >
> > Note that, there are still separate polling loops in the mmc block layer, but
> > moving that to mmc_poll_for_busy() involves some additional work. I am looking
> > into that as a next step.
> >
> > Please help review and test!
>
> That will be help if you can supply one git branch to fetch these
> patches :), and I will help to do some testing on my platform.

I've tested on my platform, incuding reading, writing, mounting and
running all cases in mmc_test.c, and I did not find any problem. So
please feel free to add my test tag. Thanks.

Tested-by: Baolin Wang <baolin.wang7@xxxxxxxxx>

> > Ulf Hansson (12):
> >   mmc: core: Throttle polling rate for CMD6
> >   mmc: core: Drop unused define
> >   mmc: core: Extend mmc_switch_status() to rid of __mmc_switch_status()
> >   mmc: core: Drop redundant in-parameter to __mmc_switch()
> >   mmc: core: Split up mmc_poll_for_busy()
> >   mmc: core: Enable re-use of mmc_blk_in_tran_state()
> >   mmc: core: Update CMD13 busy check for CMD6 commands
> >   mmc: core: Convert to mmc_poll_for_busy() for erase/trim/discard
> >   mmc: core: Drop redundant out-parameter to mmc_send_hpi_cmd()
> >   mmc: core: Convert to mmc_poll_for_busy() for HPI commands
> >   mmc: core: Fixup support for HW busy detection for HPI commands
> >   mmc: core: Re-work the error path for the eMMC sanitize command
> >
> >  drivers/mmc/core/block.c   |  55 +++++--------
> >  drivers/mmc/core/core.c    |  53 +------------
> >  drivers/mmc/core/mmc.c     |  38 ++++-----
> >  drivers/mmc/core/mmc_ops.c | 159 ++++++++++++++++++++++---------------
> >  drivers/mmc/core/mmc_ops.h |  13 ++-
> >  include/linux/mmc/core.h   |   3 -
> >  include/linux/mmc/mmc.h    |  10 +++
> >  7 files changed, 157 insertions(+), 174 deletions(-)
> >
> > --
> > 2.17.1
> >



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