Messages in this thread | | | Date | Thu, 2 Nov 2023 14:17:17 +0200 | From | Mika Westerberg <> | Subject | Re: [PATCH 2/2] PCI: Ignore PCIe ports used for tunneling in pcie_bandwidth_available() |
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On Thu, Nov 02, 2023 at 07:07:39AM -0500, Bjorn Helgaas wrote: > On Thu, Nov 02, 2023 at 12:31:08PM +0200, Mika Westerberg wrote: > > On Wed, Nov 01, 2023 at 08:14:31PM -0500, Mario Limonciello wrote: > > > On 11/1/2023 17:52, Bjorn Helgaas wrote: > > > > > Lukas' brief intro in > > > > https://lore.kernel.org/all/20230925141930.GA21033@wunner.de/ really > > > > helped me connect a few dots, because things like > > > > Documentation/admin-guide/thunderbolt.rst assume we already know those > > > > details. > > > > > > Thanks for sharing that. If I move the detection mechanism as I suggested > > > above I'll reference some of that as well in the commit message to explain > > > what exactly a tunneled port is. > > > > I'm not sure it makes sense to explain from the zero all this stuff that > > people can easily look up from the corresponding spec, such as PCIe or > > USB. > > I don't know if it needs to be in the commit log. > > I mentioned thunderbolt.rst because the text at > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/thunderbolt.rst?id=v6.6#n6 > assumes that we know the terms "host router", "host controller", > "router", "tunnel", "connection manager", and I don't think that's a > good assumption in that documentation. > > A little bit of introduction based on Lukas' text could improve that.
All these are explained in the USB4 spec, I wonder if we should just link that in the document rather than expaining all of them there. Anyway, point taken, thanks for the feedback!
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