[PATCHBOMB] libata: Port Multiplier support

[PATCHBOMB] libata: Port Multiplier support

[Tejun Heo]

Hello, all.

I'm about to post an updated version of PMP support.  Well, as always,
it took longer than I expected but it's complete now and looking good.
It's composed of the following four patchsets.

1. misc-updates patchset : This patchset contains 12 patches which
   updates various stuff.  A few are just improvements found during
   PMP work.  Others are related to PMP support in indirect way.  All
   patches in this patchset are independent.

2. pmp-link patchset : This patchset contains 16 patches which
   implement a new abstraction layer - ata_link - to represent the ATA
   link or PHY.  PMP bascially adds a bunch of PHYs to the host and it
   is represented by multiple ata_links associated with a host.  After
   this patchset, all parts are ready to deal with multiple links per
   host.

3. libata-pmp-prep patchset : This patchset contains 11 patches
   implementing features to be used by PMP support including qc_defer
   mechanism and link quirks.

4. libata-pmp: This patchset contains 11 patches implementing core PMP
   functionality and PMP support in sata_sil24 and ahci.

One of the biggest changes from the last time is lack of
hotplug-by-polling.  hp-poll needs more work and is pushed back
accordingly.  AHCI PMP support is also added.

Each patchset contains detailed description including list of changes
from the last take.  All in all, this patchset behaves much better EH
wise compared to the previous take.  SIMG 3726/4726 quirks are now
properly handled and except for some corner cases for 4726 which I
don't think there exists a solution, they always behave pretty good
(oh well mines, at least).  New SIMG 5744 also works well.

Thanks.

--
tejun

Re: patchset gmane links and git tree

[Tejun Heo]

Okay, all patches are sent.  Here are gmane links and git trees for
patchsets.  Git trees are all stacked (of course), so you really need
the last one (pmp).

1. misc-updates patchset

  http://thread.gmane.org/gmane.linux.ide/20081
  http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=misc-updates
  git://htj.dyndns.org/libata-tj misc-updates

2. pmp-link patchset

  http://thread.gmane.org/gmane.linux.ide/20099
  http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=link
  git://htj.dyndns.org/libata-tj link

3. libata-pmp-prep patchset

  http://thread.gmane.org/gmane.linux.ide/20115
  http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=pmp-prep
  git://htj.dyndns.org/libata-tj pmp-prep

4. libata-pmp

  http://thread.gmane.org/gmane.linux.ide/20128
  http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=pmp
  git://htj.dyndns.org/libata-tj pmp

Thanks.

-- 
tejun

Re: [PATCHBOMB] libata: Port Multiplier support

[Robin H. Johnson]

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On Sun, Jul 01, 2007 at 06:30:15PM +0900, Tejun Heo wrote:
> it took longer than I expected but it's complete now and looking good.
> It's composed of the following four patchsets.
These are looking great Tejun.

My previous porting attempt got delayed partway through with other work
stuff.

I can't change kernels on my PMP box right now, but I'll test a bit
later this week.

-- 
Robin Hugh Johnson
Gentoo Linux Developer & Council Member
E-Mail     : robbat2@gentoo.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

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Re: [PATCHBOMB] libata: Port Multiplier support

[Tejun Heo]

Robin H. Johnson wrote:
> On Sun, Jul 01, 2007 at 06:30:15PM +0900, Tejun Heo wrote:
>> it took longer than I expected but it's complete now and looking good.
>> It's composed of the following four patchsets.
> These are looking great Tejun.
> 
> My previous porting attempt got delayed partway through with other work
> stuff.
> 
> I can't change kernels on my PMP box right now, but I'll test a bit
> later this week.

Thanks.  Patches against 2.6.22-rc6 are available too.

http://home-tj.org/files/libata-tj-stable/libata-tj-2.6.22-rc6-20070702.tar.bz2

-- 
tejun