From: Sinan Kaya <okaya@kernel.org>
To: Zhangfei Gao <zhangfei.gao@linaro.org>,
Jean-Philippe Brucker <jean-philippe@linaro.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>,
kenneth-lee-2012@foxmail.com, Wangzhou <wangzhou1@hisilicon.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] PCI: Remove End-End TLP as PASID dependency
Date: Thu, 11 Jun 2020 10:11:30 -0400 [thread overview]
Message-ID: <a849234d-453a-8faa-93dd-12ea1b0165ab@kernel.org> (raw)
In-Reply-To: <f59c5a39-b13e-8232-57cb-089a8d62a2a7@linaro.org>
On 6/10/2020 4:00 AM, Zhangfei Gao wrote:
>> Why not set the eetlp_prefix_path bit from a PCI quirk? Unlike the stall
>> problem from the other thread, this one looks like a simple design
>> mistake
>> that can be fixed easily in future iterations of the platform: just set
>> the "End-End TLP Prefix Supported" bit in the Device Capability 2
>> Register
>> of all bridges.
> Yes, we can still set eetlp_prefix_path bit from a PCI quirk.
I agree. Vendor specific quirk should be the way to go here if it is not
compliant with the spec.
next prev parent reply other threads:[~2020-06-11 14:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-10 4:18 [RFC PATCH] PCI: Remove End-End TLP as PASID dependency Zhangfei Gao
2020-06-10 7:46 ` Jean-Philippe Brucker
2020-06-10 8:00 ` Zhangfei Gao
2020-06-11 14:11 ` Sinan Kaya [this message]
2020-06-11 17:41 ` Bjorn Helgaas
2020-06-13 13:49 ` Zhangfei Gao
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