[PATCH v4 0/4] Support VFIO sparse mmap in PCI bus

[David Marchand]

Hello Chenbo, Patrick,


On Thu, Jun 8, 2023 at 8:50 AM Xia, Chenbo <chenbo.xia at intel.com> wrote:
> > > This series introduces a VFIO standard capability, called sparse
> > > mmap to PCI bus. In linux kernel, it's defined as
> > > VFIO_REGION_INFO_CAP_SPARSE_MMAP. Sparse mmap means instead of
> > > mmap whole BAR region into DPDK process, only mmap part of the
> > > BAR region after getting sparse mmap information from kernel.
> > > For the rest of BAR region that is not mmap-ed, DPDK process
> > > can use pread/pwrite system calls to access. Sparse mmap is
> > > useful when kernel does not want userspace to mmap whole BAR
> > > region, or kernel wants to control over access to specific BAR
> > > region. Vendors can choose to enable this feature or not for
> > > their devices in their specific kernel modules.
> > >
> >
> > Hello,
> >
> > I see the build failure Patrick reported as well and can confirm it's
> > caused by 095cf6e68b28 ("bus/pci: introduce MMIO read/write").
> > Bugzilla ticket: https://bugs.dpdk.org/show_bug.cgi?id=1245
>
> Thanks Ali. I just read the bz and understand what's missing. I will send
> a patch today.
>
> But since last time CI is not reporting the error, this time how could I make
> sure the fix will perfectly work?

Chenbo,

In theory, this error should have been reported so go ahead and post your fix.

Patrick,

This missing report could be a mail delivery issue (I can see the test
ran at UNH).
I see no trace in test-report ml.
Can you look at the reason?

Thanks.


-- 
David Marchand