linux

iv/linux

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Robert Konklewski beff3e9d80 i40e: Fixed race conditions in VF reset

First, this patch eliminates IOMMU DMAR Faults caused by VF hardware.
This is done by enabling VF hardware only after VSI resources are
freed. Otherwise, hardware could DMA into memory that is (or just has
been) being freed.

Then, the VF driver is activated only after VSI resources have been
reallocated. That's because the VF driver can request resources
immediately after it's activated. So they need to be ready at that
point.

The second race condition happens when the OS initiates a VF reset,
and then before it's finished modifies VF's settings by changing its
MAC, VLAN ID, bandwidth allocation, anti-spoof checking, etc. These
functions needed to be blocked while VF is undergoing reset. Otherwise,
they could operate on data structures that had just been freed or not
yet fully initialized.

Change-ID: I43ba5a7ae2c9a1cce3911611ffc4598ae33ae3ff
Signed-off-by: Robert Konklewski <robertx.konklewski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

2017-03-27 16:45:14 -07:00

e1000

e1000: use new API ethtool_{get|set}_link_ksettings

2017-03-21 15:27:58 -07:00

e1000e

e1000e: use new API ethtool_{get|set}_link_ksettings

2017-03-21 15:31:30 -07:00

fm10k

mqprio: Modify mqprio to pass user parameters via ndo_setup_tc.

2017-03-15 15:20:27 -07:00

i40e

i40e: Fixed race conditions in VF reset