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authorBjorn Helgaas <bhelgaas@google.com>2017-04-28 10:36:12 -0500
committerBjorn Helgaas <bhelgaas@google.com>2017-04-28 10:36:12 -0500
commitef1b5dad5a386885998d11eb45ca7fd183079965 (patch)
treef065b28a01dbe57ef28ace9b88dfbf9c2fe49b09 /Documentation/ABI
parent889e4dd916a1f4dc7f9e6220fed26d811e39ca71 (diff)
parent63af8f7a8293b94787763c933abfd21ba852807f (diff)
downloadop-kernel-dev-ef1b5dad5a386885998d11eb45ca7fd183079965.zip
op-kernel-dev-ef1b5dad5a386885998d11eb45ca7fd183079965.tar.gz
Merge branch 'pci/virtualization' into next
* pci/virtualization: ixgbe: Use pcie_flr() instead of duplicating it IB/hfi1: Use pcie_flr() instead of duplicating it PCI: Call pcie_flr() from reset_chelsio_generic_dev() PCI: Call pcie_flr() from reset_intel_82599_sfp_virtfn() PCI: Export pcie_flr() PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding PCI: Avoid FLR for Intel 82579 NICs Conflicts: include/linux/pci.h
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci22
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 5a1732b..b728f70 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -301,3 +301,25 @@ Contact: Emil Velikov <emil.l.velikov@gmail.com>
Description:
This file contains the revision field of the the PCI device.
The value comes from device config space. The file is read only.
+
+What: /sys/bus/pci/devices/.../sriov_drivers_autoprobe
+Date: April 2017
+Contact: Bodong Wang<bodong@mellanox.com>
+Description:
+ This file is associated with the PF of a device that
+ supports SR-IOV. It determines whether newly-enabled VFs
+ are immediately bound to a driver. It initially contains
+ 1, which means the kernel automatically binds VFs to a
+ compatible driver immediately after they are enabled. If
+ an application writes 0 to the file before enabling VFs,
+ the kernel will not bind VFs to a driver.
+
+ A typical use case is to write 0 to this file, then enable
+ VFs, then assign the newly-created VFs to virtual machines.
+ Note that changing this file does not affect already-
+ enabled VFs. In this scenario, the user must first disable
+ the VFs, write 0 to sriov_drivers_autoprobe, then re-enable
+ the VFs.
+
+ This is similar to /sys/bus/pci/drivers_autoprobe, but
+ affects only the VFs associated with a specific PF.
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