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(parent: 250c7b2) | patch
powerpc/pci: Add PCI resource alignment documentation
authorWei Yang <weiyang@linux.vnet.ibm.com>
Wed, 25 Mar 2015 08:24:01 +0000 (16:24 +0800)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 31 Mar 2015 02:02:38 +0000 (13:02 +1100)
commit330524404298b2142d2e3a2f64251ca855d55d72
tree540e5426b795f4126ec0afa0618057d5fe194b83tree | snapshot (tar.gz zip)
parent250c7b277c65e801a3312061dc2e919233468916commit | diff
powerpc/pci: Add PCI resource alignment documentation

In order to enable SRIOV on PowerNV platform, the PF's IOV BAR needs to be
adjusted:

    1. size expanded
    2. aligned to M64BT size

This patch documents this change on the reason and how.

[bhelgaas: reformat, clarify, expand]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Documentation/powerpc/pci_iov_resource_on_powernv.txt [new file with mode: 0644] blob