netdev - [PATCH net-next v3 0/2] cxgb4: add TC-MATCHALL classifier offload

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Date:   Fri, 15 Nov 2019 17:44:19 +0530
From:   Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, nirranjan@...lsio.com, vishal@...lsio.com,
        dt@...lsio.com
Subject: [PATCH net-next v3 0/2] cxgb4: add TC-MATCHALL classifier offload

This series of patches add support to offload TC-MATCHALL classifier
to hardware to classify all outgoing and incoming traffic on the
underlying port. Only 1 egress and 1 ingress rule each can be
offloaded on the underlying port.

Patch 1 adds support for TC-MATCHALL classifier offload on the egress
side. TC-POLICE is the only action that can be offloaded on the egress
side and is used to rate limit all outgoing traffic to specified max
rate.

Patch 2 adds support for TC-MATCHALL classifier offload on the ingress
side. The same set of actions supported by existing TC-FLOWER
classifier offload can be applied on all the incoming traffic.

Thanks,
Rahul

---
v3:
- Added check in patch 1 to reject police offload if prio is not 1.
- Assign block_shared variable only for TC_SETUP_BLOCK in patch 1.

v2:
- Added check to reject flow block sharing for policers in patch 1.
- Removed logic to fetch free index from end of TCAM in patch 2.
  Must maintain the same ordering as in kernel.


Rahul Lakkireddy (2):
  cxgb4: add TC-MATCHALL classifier egress offload
  cxgb4: add TC-MATCHALL classifier ingress offload

 drivers/net/ethernet/chelsio/cxgb4/Makefile   |   3 +-
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h    |   6 +
 .../net/ethernet/chelsio/cxgb4/cxgb4_main.c   |  79 +++-
 .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.c  |  21 +-
 .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.h  |   6 +
 .../chelsio/cxgb4/cxgb4_tc_matchall.c         | 345 ++++++++++++++++++
 .../chelsio/cxgb4/cxgb4_tc_matchall.h         |  50 +++
 .../ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c  |   5 +-
 drivers/net/ethernet/chelsio/cxgb4/sched.c    |  56 ++-
 drivers/net/ethernet/chelsio/cxgb4/sched.h    |   1 +
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c    |  11 +-
 11 files changed, 543 insertions(+), 40 deletions(-)
 create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c
 create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.h

-- 
2.24.0