> -----Original Message----- > From: Sridhar Pitchai > Sent: Wednesday, March 14, 2018 11:08 AM > To: Lorenzo Pieralisi <[email protected]>; Michael Kelley (EOSG) > <[email protected]> > Cc: Bjorn Helgaas <[email protected]>; Jake Oshins <[email protected]>; > Haiyang > Zhang <[email protected]>; Stephen Hemminger <[email protected]>; > Dexuan > Cui <[email protected]>; KY Srinivasan <[email protected]>; > [email protected]; [email protected]; > [email protected] > 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: [email protected] > Signed-off-by: Sridhar Pitchai <[email protected]> > ---
Reviewed-by: Michael Kelley <[email protected]>
