[U-Boot] [PATCH 03/11] DM: add block controller core
Marek Vasut
marex at denx.de
Fri Sep 21 14:51:33 CEST 2012
Dear Pavel Herrmann,
> On Thursday 20 of September 2012 22:05:36 Marek Vasut wrote:
> > Dear Pavel Herrmann,
> >
> > > This core provides unified access to different block controllers (SATA,
> > > SCSI).
> >
> > Description of the patch missing or is sub-par. You should work on this
> > skill.
> >
> > > Signed-off-by: Pavel Herrmann <morpheus.ibis at gmail.com>
> > > ---
> > >
> > > Makefile | 1 +
> > > drivers/blockctrl/Makefile | 42 ++++++
> > > drivers/blockctrl/core.c | 349
> > >
> > > +++++++++++++++++++++++++++++++++++++++++++++ include/dm/blockctrl.h
> > > |
> > >
> > > 75 ++++++++++
> > > 4 files changed, 467 insertions(+)
> > > create mode 100644 drivers/blockctrl/Makefile
> > > create mode 100644 drivers/blockctrl/core.c
> > > create mode 100644 include/dm/blockctrl.h
> > >
> > > diff --git a/Makefile b/Makefile
> > > index e43fd9d..4420484 100644
> > > --- a/Makefile
> > > +++ b/Makefile
> > > @@ -304,6 +304,7 @@ LIBS-y += test/libtest.o
> > >
> > > LIBS-$(CONFIG_DM) += common/dm/libdm.o
> > > LIBS-$(CONFIG_DM) += drivers/demo/libdemo.o
> > > LIBS-${CONFIG_DM_BLOCK} += drivers/blockdev/libblockdev.o
> > >
> > > +LIBS-${CONFIG_DM_BLOCK} += drivers/blockctrl/libblockctrl.o
> >
> > ${} ? What is this ?
Why not just reuse drivers/block and in drivers/block compile in the libblock.o
so you don't polute the top-level makefile ? Easy as that.
> > [..]
> >
> > This handles SCSI? Sata ? what ?
> >
> > Should this not be called scsi_core ? sata_core ? What did the previous
> > core do? sata? scsi? block? I'm lost.
>
> the previous core handled disks (and cards and stuff) and partitions (think
> /dev/sdxy), and was largely a replacement of /disk
> this core handles any interface those disks are connected to (SATA, PATA,
> SCSI), and should replace /drivers/block
Why is this not in the commit message then ? I have a proposal, before you
submit a patchset, prepare it, work on something else for a bit, then read again
the commit message only and see if you still understand what it means.
Am I correct that this will look as such:
user -> [ 01/11 ] -> [ 03/11 or something else ] -> [ if 03/11, then disc ]
> > I stop here, I don't know what this is all about, sorry.
> >
> > Best regards,
> > Marek Vasut
Best regards,
Marek Vasut
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