On 05/06/15 13:33, John Baldwin wrote:
On Wednesday, May 06, 2015 02:24:24 PM Ryan Stone wrote:
On Wed, May 6, 2015 at 11:45 AM, John Baldwin <j...@freebsd.org> wrote:

There are some devices with BARs in non-standard locations. :( If there is
a flag to just disable the VF bar decoding, then ideally we should just be
doing that and leaving the global decoding flag alone while sizing the VF

Disabling SR-IOV BAR decoding in this function is currently redundant, as
it's already done in pci_iov.c, but I guess to keep the interface sane it
makes sense to do it here too.  Something like this then?
Ah, sorry, I didn't know you did it in the caller already.  Perhaps
then something more like your previous patch, but using the test you
added here (PCIR_IS_IOV) instead of your previous check against BAR
values to decide when to frob the command register?

Does the disabling of VF MSE in pci_iov_config actually protect anything else beyond what happens in pci_read_bar? I gave a read through which suggests "no", but I might have missed something. Just thinking that the code would be a bit more hardy if it were done the same way for both VFs and other devices.

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