From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Fastabend Subject: [RFC PATCH 4/7] net: add tc offload feature flag Date: Sun, 31 Jan 2016 17:51:00 -0800 Message-ID: <20160201015100.13871.43218.stgit@john-Precision-Tower-5810> References: <20160201014555.13871.56591.stgit@john-Precision-Tower-5810> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: ast@fb.com, donald.c.skidmore@intel.com, horms@verge.net.au, netdev@vger.kernel.org, tgraf@suug.ch, davem@davemloft.net To: anjali.singhai@intel.com, jesse.brandeburg@intel.com, jhs@mojatatu.com Return-path: Received: from mail-pa0-f68.google.com ([209.85.220.68]:33405 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933350AbcBABvl (ORCPT ); Sun, 31 Jan 2016 20:51:41 -0500 Received: by mail-pa0-f68.google.com with SMTP id pv5so6500930pac.0 for ; Sun, 31 Jan 2016 17:51:41 -0800 (PST) In-Reply-To: <20160201014555.13871.56591.stgit@john-Precision-Tower-5810> Sender: netdev-owner@vger.kernel.org List-ID: Its useful to turn off the qdisc offload feature at a per device level. This gives us a big hammer to enable/disable offloading. More fine grained control (i.e. per rule) may be supported later. Signed-off-by: John Fastabend --- include/linux/netdev_features.h | 3 +++ net/core/ethtool.c | 1 + 2 files changed, 4 insertions(+) diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index d9654f0e..a734bf4 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -67,6 +67,8 @@ enum { NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ NETIF_F_BUSY_POLL_BIT, /* Busy poll */ + NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */ + /* * Add your fresh new feature above and remember to update * netdev_features_strings[] in net/core/ethtool.c and maybe @@ -124,6 +126,7 @@ enum { #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) #define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL) +#define NETIF_F_HW_TC __NETIF_F(HW_TC) #define for_each_netdev_feature(mask_addr, bit) \ for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT) diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 09948a7..bd8e157a 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -98,6 +98,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] [NETIF_F_RXALL_BIT] = "rx-all", [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload", [NETIF_F_BUSY_POLL_BIT] = "busy-poll", + [NETIF_F_HW_TC_BIT] = "hw-tc-offload", }; static const char