> -----Original Message----- > From: Sridhar Pitchai > Sent: Wednesday, March 14, 2018 11:08 AM > To: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>; Michael Kelley (EOSG) > <michael.h.kel...@microsoft.com> > Cc: Bjorn Helgaas <bhelg...@google.com>; Jake Oshins <ja...@microsoft.com>; > Haiyang > Zhang <haiya...@microsoft.com>; Stephen Hemminger <sthem...@microsoft.com>; > Dexuan > Cui <de...@microsoft.com>; KY Srinivasan <k...@microsoft.com>; > de...@linuxdriverproject.org; linux-...@vger.kernel.org; > linux-ker...@vger.kernel.org > Subject: [PATCH v2]PCI: hv: fix PCI-BUS domainID corruption > > Whenever PCI bus is added, HyperV guarantees the BUS id is unique. Even > with > that when a first device is added to the bus, it overrides bus domain ID > with > the device serial number. Sometime this can result in BUS ID not being > unique. > In this case, when PCI_BUS and a device added to the bus, even before the > PCI > BUS is added to kernel, the first device tends to overwrite the domain ID > with > 0. Since there exists a PCI bus with domain ID 0 already the PCI bus > addition > fails. This patch make sure when a device is added to a bus, it never > updated > the bus domain ID. Since we have the transparent SRIOV mode now, the > short VF > device name is no longer needed. > > Fixes: 4a9b0933bdfc("PCI:hv:Use device serial number as PCI domain") > Cc: sta...@vger.kernel.org > Signed-off-by: Sridhar Pitchai <srpit...@microsoft.com> > ---
Reviewed-by: Michael Kelley <mikel...@microsoft.com> _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel