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Groups > linux.kernel > #1310515

Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3

From Andy Lutomirski <luto@amacapital.net>
Newsgroups linux.kernel
Subject Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3
Date 2016-01-15 23:50 +0100
Message-ID <qRllU-42W-15@gated-at.bofh.it> (permalink)
References <qQnzs-4iP-11@gated-at.bofh.it> <qQYIG-5f6-9@gated-at.bofh.it> <qRj0K-2C0-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Jan 15, 2016 at 12:13 PM, Tejun Heo <tj@kernel.org> wrote:
> Some early controllers incorrectly reported zero ports in PORTS_IMPL
> register and the ahci driver fabricates PORTS_IMPL from the number of
> ports in those cases.  This hasn't mattered but with the new nvme
> controllers there are cases where zero PORTS_IMPL is valid and should
> be honored.
>
> Disable the workaround for >= AHCI 1.3.

Tested-by: Andy Lutomirski <luto@kernel.org>

--Andy

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Thread

[PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Tejun Heo <tj@kernel.org> - 2016-01-15 21:20 +0100
  Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Andy Lutomirski <luto@amacapital.net> - 2016-01-15 23:50 +0100
  Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-01-16 11:10 +0100
    Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Tejun Heo <tj@kernel.org> - 2016-01-19 18:30 +0100
      Re: [PATCH v2] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-01-19 18:30 +0100
  [PATCH v3] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Tejun Heo <tj@kernel.org> - 2016-01-25 21:50 +0100

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