> -----Original Message----- > From: Richardson, Bruce > Sent: Monday, June 16, 2014 3:29 PM > To: dev at dpdk.org > Cc: Richardson, Bruce > Subject: [PATCH] vfio: make container open error non-fatal > > When setting up an app to run using the uio driver, errors caused by > VFIO failures should not abruptly cause the app to fail. > > Example: on a board with 8 ports bound to igb_uio module, and no VFIO > configuration, a testpmd run currently fails with: > > EAL: cannot open VFIO container! > EAL: 0000:04:00.0 cannot open VFIO container! > EAL: Error - exiting with code: 1 > Cause: Requested device 0000:04:00.0 cannot be used > > With this patch applied, the problem with VFIO is ignored and testpmd > successfully starts up - with ignored errors with vfio - as below: > > EAL: PCI device 0000:04:00.0 on NUMA socket 0 > EAL: probe driver: 8086:1521 rte_igb_pmd > EAL: unknown IOMMU driver! > EAL: 0000:04:00.0 cannot open VFIO container! > EAL: 0000:04:00.0 not managed by UIO driver, skipping > <...scan results for other ports skipped...> > EAL: PCI device 0000:8e:00.0 on NUMA socket 1 > EAL: probe driver: 8086:154a rte_ixgbe_pmd > EAL: unknown IOMMU driver! > EAL: 0000:8e:00.0 cannot open VFIO container! > EAL: PCI memory mapped at 0x7ff4ff5fa000 > EAL: PCI memory mapped at 0x7ff4ff5f6000 > EAL: PCI device 0000:8e:00.1 on NUMA socket 1 > EAL: probe driver: 8086:154a rte_ixgbe_pmd > EAL: unknown IOMMU driver! > EAL: 0000:8e:00.1 cannot open VFIO container! > EAL: PCI memory mapped at 0x7ff4ff4f6000 > EAL: PCI memory mapped at 0x7ff4ff4f2000 > Interactive-mode selected > Configuring Port 0 (socket 0) > <...other 7 ports ...> > Checking link statuses... > Port 0 Link Up - speed 10000 Mbps - full-duplex > Port 1 Link Down > Port 2 Link Up - speed 10000 Mbps - full-duplex > Port 3 Link Down > Port 4 Link Up - speed 10000 Mbps - full-duplex > Port 5 Link Down > Port 6 Link Up - speed 10000 Mbps - full-duplex > Port 7 Link Down > Done > testpmd> > > This issue is introduced by the VFIO patch set addition, specifically > commit ff0b67d1. > > Signed-off-by: Bruce Richardson <bruce.richardson at intel.com> > ---
Self-NAK. Anatoly's patch is a better fix.
