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From: Lukas Wunner <lukas@wunner.de>
To: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Cc: bhelgaas@google.com, austin_bolen@dell.com,
	alex_gagniuc@dellteam.com, keith.busch@intel.com,
	Shyam_Iyer@Dell.com, okaya@kernel.org, linux-pci@vger.kernel.org
Subject: Re: [PATCH RFC v2 0/4] PCI: pciehp: Do not turn off slot if presence comes up after link
Date: Thu, 21 Feb 2019 16:38:28 +0100	[thread overview]
Message-ID: <20190221153828.vd5uufymaut5j6o2@wunner.de> (raw)
In-Reply-To: <20190220012031.10741-1-mr.nuke.me@gmail.com>

On Tue, Feb 19, 2019 at 07:20:26PM -0600, Alexandru Gagniuc wrote:
> This series has two solutions for this problem, and is intended to
> serve as a bikeshedding point for which is better:
>  1. Try to wait for PDS _before_ loading the driver
>  2. Load as usual, and recognize the delayed PDS event as such
> 
> I think (2) is more generic and elegant, but a lot of people seem to
> like something similar to (1).

Either solution LGTM, by now I've also become accustomed to your
preferred solution (2) (i.e. patch [2/4]), so I'm deferring this
question to Bjorn.


> (*) ECN was approved in Nov 2018, and is normative spec text. A lot of
> the leaked PCIe 4.0 specs do not have this change.

I thought it will be incorporated into 5.0, which is why it's missing
in all 4.0 specs?

Thanks,

Lukas

  parent reply	other threads:[~2019-02-21 15:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-20  1:20 [PATCH RFC v2 0/4] PCI: pciehp: Do not turn off slot if presence comes up after link Alexandru Gagniuc
2019-02-20  1:20 ` [PATCH RFC v2 1/4] PCI: hotplug: Add support for disabling in-band presence Alexandru Gagniuc
2019-02-21  7:19   ` Lukas Wunner
2019-02-21 18:05     ` Alex_Gagniuc
2019-02-20  1:20 ` [PATCH RFC v2 2/4] PCI: pciehp: Do not turn off slot if presence comes up after link Alexandru Gagniuc
2019-02-21  7:36   ` Lukas Wunner
2019-02-22 19:56     ` Alex_Gagniuc
2019-02-23  6:49       ` Lukas Wunner
2019-02-24 22:27         ` Alex_Gagniuc
2019-02-20  1:20 ` [PATCH RFC v2 3/4] PCI: hotplug: Wait for PDS when in-band presence is disabled Alexandru Gagniuc
2019-02-20  1:20 ` [PATCH RFC v2 4/4] PCI: hotplug: Add quirk For Dell nvme pcie switches Alexandru Gagniuc
2019-02-21  7:56   ` Lukas Wunner
2019-02-21 18:35     ` Alex_Gagniuc
2019-02-22  1:20       ` Joe Perches
2019-02-22  2:04       ` Oliver
2019-02-22 19:19         ` Alex_Gagniuc
2019-02-21 15:38 ` Lukas Wunner [this message]
2019-02-21 18:17   ` [PATCH RFC v2 0/4] PCI: pciehp: Do not turn off slot if presence comes up after link Alex_Gagniuc
2019-04-19  0:01 ` Bjorn Helgaas
2019-04-19 15:22   ` [PATCH v3 " Alexandru Gagniuc
2019-04-19 15:22     ` [PATCH v3 1/4] PCI: hotplug: Add support for disabling in-band presence Alexandru Gagniuc
2019-04-19 15:22     ` [PATCH v3 2/4] PCI: pciehp: Do not turn off slot if presence comes up after link Alexandru Gagniuc
2019-04-19 15:22     ` [PATCH v3 3/4] PCI: hotplug: Wait for PDS when in-band presence is disabled Alexandru Gagniuc
2019-04-19 15:22     ` [PATCH v3 4/4] PCI: hotplug: Add quirk For Dell nvme pcie switches Alexandru Gagniuc
2019-04-19 21:00       ` Alan J. Wylie

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