cxgb4: handle 4-tuple PEDIT to NAT mode translation

Browse source

The 4-tuple NAT offload via PEDIT always overwrites all the 4-tuple
fields even if they had not been explicitly enabled. If any fields in
the 4-tuple are not enabled, then the hardware overwrites the
disabled fields with zeros, instead of ignoring them.

So, add a parser that can translate the enabled 4-tuple PEDIT fields
to one of the NAT mode combinations supported by the hardware and
hence avoid overwriting disabled fields to 0. Any rule with
unsupported NAT mode combination is rejected.

Signed-off-by: Herat Ramani <herat@chelsio.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Herat Ramani 2020-10-13 15:01:29 +05:30 • committed by Jakub Kicinski

parent f8ea4a1985

commit 2ef813b8f4

2 changed files with 177 additions and 13 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

175

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c

View file

15

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h

View file