From patchwork Mon Nov 18 17:00:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rahul Lakkireddy X-Patchwork-Id: 1196873 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=chelsio.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47GwQp3PWqz9sPj for ; Tue, 19 Nov 2019 04:08:50 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726983AbfKRRIt (ORCPT ); Mon, 18 Nov 2019 12:08:49 -0500 Received: from stargate.chelsio.com ([12.32.117.8]:28583 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726322AbfKRRIt (ORCPT ); Mon, 18 Nov 2019 12:08:49 -0500 Received: from localhost (scalar.blr.asicdesigners.com [10.193.185.94]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id xAIH8eE0018666; Mon, 18 Nov 2019 09:08:41 -0800 From: Rahul Lakkireddy To: netdev@vger.kernel.org Cc: davem@davemloft.net, nirranjan@chelsio.com, vishal@chelsio.com, dt@chelsio.com Subject: [PATCH net-next v4 0/3] cxgb4: add TC-MATCHALL classifier offload Date: Mon, 18 Nov 2019 22:30:16 +0530 Message-Id: X-Mailer: git-send-email 2.5.3 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 logic to reject the current rule offload if its priority conflicts with existing rules in the TCAM. Patch 3 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 --- v4: - Removed check in patch 1 to reject police offload if prio is not 1. - Moved TC_SETUP_BLOCK code to separate function in patch 1. - Added logic to ensure the prio passed by TC doesn't conflict with other rules in TCAM in patch 2. - Higher index has lower priority than lower index in TCAM. So, rework cxgb4_get_free_ftid() to search free index from end of TCAM in descending order in patch 2. - Added check to ensure the matchall rule's prio doesn't conflict with other rules in TCAM in patch 3. - Added logic to fill default mask for VIID, if none has been provided, to prevent conflict with duplicate VIID rules in patch 3. - Used existing variables in private structure to fill VIID info, instead of extracting the info manually in patch 3. 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 (3): cxgb4: add TC-MATCHALL classifier egress offload cxgb4: check rule prio conflicts before offload cxgb4: add TC-MATCHALL classifier ingress offload drivers/net/ethernet/chelsio/cxgb4/Makefile | 3 +- drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 11 +- .../net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 119 ++++-- .../net/ethernet/chelsio/cxgb4/cxgb4_filter.h | 1 + .../net/ethernet/chelsio/cxgb4/cxgb4_main.c | 91 ++++- .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 52 ++- .../ethernet/chelsio/cxgb4/cxgb4_tc_flower.h | 6 + .../chelsio/cxgb4/cxgb4_tc_matchall.c | 354 ++++++++++++++++++ .../chelsio/cxgb4/cxgb4_tc_matchall.h | 49 +++ .../ethernet/chelsio/cxgb4/cxgb4_tc_mqprio.c | 5 +- .../net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c | 36 +- 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 +- 14 files changed, 707 insertions(+), 88 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