Dexuan Cui c85364c66e PCI: hv: Use effective affinity mask ...

commit 79aa801e899417a56863d6713f76c4e108856000 upstream.

The effective_affinity_mask is always set when an interrupt is assigned in
__assign_irq_vector() -> apic->cpu_mask_to_apicid(), e.g. for struct apic
apic_physflat: -> default_cpu_mask_to_apicid() ->
irq_data_update_effective_affinity(), but it looks d->common->affinity
remains all-1's before the user space or the kernel changes it later.

In the early allocation/initialization phase of an IRQ, we should use the
effective_affinity_mask, otherwise Hyper-V may not deliver the interrupt to
the expected CPU.  Without the patch, if we assign 7 Mellanox ConnectX-3
VFs to a 32-vCPU VM, one of the VFs may fail to receive interrupts.

Tested-by: Adrian Suhov <v-adsuho@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jake Oshins <jakeo@microsoft.com>
Cc: Jork Loeser <jloeser@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-11-30 08:40:41 +00:00

..

Kconfig

Merge branch 'pci/host-xilinx' into next

2017-09-07 13:24:11 -05:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci-aardvark.c

PCI: aardvark: Move to struct pci_host_bridge IRQ mapping functions

2017-10-10 21:17:43 -05:00

pci-ftpci100.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pci-host-common.c

PCI: generic: Drop pci_fixup_irqs()

2017-07-02 16:51:19 -05:00

pci-host-generic.c

PCI: Don't allow unbinding host controllers that aren't prepared

2017-04-28 10:38:00 -05:00

pci-hyperv.c

PCI: hv: Use effective affinity mask

2017-11-30 08:40:41 +00:00

pci-mvebu.c

Merge branch 'pci/misc' into next

2017-09-07 13:24:16 -05:00

pci-rcar-gen2.c

PCI: rcar-gen2: Make of_device_ids const

2017-07-02 18:45:31 -05:00

pci-tegra.c

Revert "PCI: tegra: Do not allocate MSI target memory"

2017-10-10 19:06:16 -05:00

pci-thunder-ecam.c

PCI: Don't allow unbinding host controllers that aren't prepared

2017-04-28 10:38:00 -05:00

pci-thunder-pem.c

PCI: Don't allow unbinding host controllers that aren't prepared

2017-04-28 10:38:00 -05:00

pci-versatile.c

PCI: versatile: Add local struct device pointers

2017-07-02 18:46:43 -05:00

pci-xgene-msi.c

PCI: xgene: Fix platform_get_irq() error handling

2017-09-07 08:52:42 -05:00

pci-xgene.c

PCI: xgene: Clean up whitespace

2017-09-07 08:52:43 -05:00

pcie-altera-msi.c

PCI: altera: Fix platform_get_irq() error handling

2017-09-05 13:36:28 -05:00

pcie-altera.c

PCI: altera: Fix platform_get_irq() error handling

2017-09-05 13:36:28 -05:00

pcie-iproc-bcma.c

PCI: iproc: Convert PCI scan API to pci_scan_root_bus_bridge()

2017-07-02 16:14:24 -05:00

pcie-iproc-msi.c

PCI: iproc: Remove unused struct iproc_pcie *pcie

2017-07-31 14:32:47 -05:00

pcie-iproc-platform.c

PCI: iproc: Add 500ms delay during device shutdown

2017-09-05 12:27:03 -05:00

pcie-iproc.c

PCI: iproc: Clean up whitespace

2017-09-05 12:33:33 -05:00

pcie-iproc.h

PCI: iproc: Add 500ms delay during device shutdown

2017-09-05 12:27:03 -05:00

pcie-mediatek.c

PCI: mediatek: Use PCI_NUM_INTX

2017-08-30 08:23:59 -05:00

pcie-rcar.c

PCI: rcar: Fix memory leak when no PCIe card is inserted

2017-08-15 17:51:59 -05:00

pcie-rockchip.c

Merge branch 'pci/trivial' into next

2017-09-07 13:24:20 -05:00

pcie-tango.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

pcie-xilinx-nwl.c

PCI: xilinx-nwl: Fix platform_get_irq() error handling

2017-09-05 13:41:13 -05:00

pcie-xilinx.c

Merge branch 'pci/trivial' into next

2017-09-07 13:24:20 -05:00

vmd.c

PCI: vmd: Remove IRQ affinity so we can allocate more IRQs

2017-08-30 16:18:38 -05:00