On Thu, Jun 1, 2017 at 10:38 PM, Bjorn Helgaas [off-list ref] wrote:

On Wed, May 31, 2017 at 11:17 AM, Oza Oza [off-list ref] wrote:

quoted

On Wed, May 31, 2017 at 4:12 AM, Bjorn Helgaas [off-list ref] wrote:

quoted

On Mon, May 22, 2017 at 11:39 AM, Oza Pawandeep [off-list ref] wrote:

quoted

This patch adds support for inbound memory window
for PCI RC drivers.

It defines new function pci_create_root_bus2 which
takes inbound resources as an argument and fills in the
memory resource to PCI internal host bridge structure
as inbound_windows.

Legacy RC driver could continue to use pci_create_root_bus,
but any RC driver who wants to reseve IOVAS for their
inbound memory holes, should use new API pci_create_root_bus2.

Signed-off-by: Oza Pawandeep <redacted>
...

quoted

+struct pci_bus *pci_create_root_bus2(struct device *parent, int bus,
+               struct pci_ops *ops, void *sysdata, struct list_head *resources,
+               struct list_head *in_res)
+{
+       return pci_create_root_bus_msi(parent, bus, ops, sysdata,
+                                      resources, in_res, NULL);
+}
+EXPORT_SYMBOL_GPL(pci_create_root_bus2);

Based on your response to Lorenzo's "[RFC/RFT PATCH 03/18] PCI:
Introduce pci_scan_root_bus_bridge()", I'm hoping you can avoid adding
yet another variant of pci_create_root_bus().

So I think I can wait for that to settle out and look for a v8?

Bjorn

Sure Bjorn, please wait for v8.

But there is one more associated patch
[PATCH v7 1/3] OF/PCI: Export inbound memory interface to PCI RC
which basically aims to provide an interface to RC drivers for their
inbound resources.
RC driver already get their outbound resources from
of_pci_get_host_bridge_resources,
similar attempt for inbound dma-ranges.

Not sure I understand.  Patch 1/3 adds of_pci_get_dma_ranges(), but
none of the patches adds a caller, so I don't see the point of it yet.

In general, if I'm expecting another revision of one patch in a
series, I expect the next revision to include *all* the patches in the
series.  I normally don't pick out and apply individual patches from
the series.

Bjorn

Yes, it does not get called by anybody, because it is supposed to be called
by RC drivers who want to reserve IOVAs, not all the PCI host bridge driver
might call it, but certainly iproc based PCI driver has to call it.

Then I will have PATCH v8, and with that, I will include PCI RC driver
patch calling it as well.
Thanks for the Review.

Regards,
Oza.