i40e/i40evf: Do not write to descriptor unless we complete

Browse source

This patch defers writing to the Tx descriptor bits until we know we have
successfully completed a given operation.  So for example we defer updating
the tunnelling portion of the context descriptor until we have fully
identified the type.

The advantage to this approach is that we can assemble values as we go
instead of having to try and kludge everything together all at once.  As a
result we can significantly clean up the tunneling configuration for
instance as we can just do a pointer walk and do the math for the distance
between each set of points.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Alexander Duyck 2016-01-24 21:17:01 -08:00 • committed by Jeff Kirsher

parent a3fd9d8876

commit 475b4205aa

2 changed files with 84 additions and 76 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

80

drivers/net/ethernet/intel/i40e/i40e_txrx.c

View file

80

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

View file