ice: Handle LAN overflow event for VF queues

Browse source

Currently we are not handling LAN overflow events. There can be cases
where LAN overflow events occur on VF queues, especially with Link Flow
Control (LFC) enabled on the controlling PF. In order to recover from
the LAN overflow event caused by a VF we need to determine if the queue
belongs to a VF and reset that VF accordingly.

The struct ice_aqc_event_lan_overflow returns a copy of the GLDCB_RTCTQ
register, which tells us what the queue index is in the global/device
space. The global queue index needs to first be converted to a PF space
queue index and then it can be used to find if a VF owns it.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@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:

Brett Creeley 2020-01-22 07:21:31 -08:00 • committed by Jeff Kirsher

parent 39066dc549

commit 2309ae385a

5 changed files with 86 additions and 0 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

11

drivers/net/ethernet/intel/ice/ice_adminq_cmd.h

View file

2

drivers/net/ethernet/intel/ice/ice_hw_autogen.h

View file

3

drivers/net/ethernet/intel/ice/ice_main.c

View file

66

drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c

View file

4

drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h

View file