i40e: Protect access to VF control methods

Browse source

A scenario has been found in which simultaneous
addition/removal and modification of VF's might cause
unstable behaviour, up to and including kernel panics.

Protect the methods that create/modify/destroy VF's
by locking them behind an atomically set bit in PF status
bitfield.

Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Jan Sokolowski 2018-10-30 10:50:45 -07:00 • committed by Jeff Kirsher

parent 4ff2d85403

commit f5a7b21b24

2 changed files with 60 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/net/ethernet/intel/i40e/i40e.h

View file

64

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

View file