From: Alexander Lobakin <alobakin@pm.me>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Willem de Bruijn <willemb@google.com>,
Steffen Klassert <steffen.klassert@secunet.com>,
Alexander Duyck <alexander.duyck@gmail.com>,
Paolo Abeni <pabeni@redhat.com>,
Alexander Lobakin <alobakin@pm.me>,
Igor Russkikh <irusskikh@marvell.com>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Miaohe Lin <linmiaohe@huawei.com>,
Antoine Tenart <atenart@kernel.org>,
Michal Kubecek <mkubecek@suse.cz>, Andrew Lunn <andrew@lunn.ch>,
Meir Lichtinger <meirl@mellanox.com>,
Aya Levin <ayal@mellanox.com>,
Florian Fainelli <f.fainelli@gmail.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH net-next 1/2] net: introduce UDP GRO netdev feature
Date: Mon, 18 Jan 2021 19:32:51 +0000 [thread overview]
Message-ID: <20210118193232.87583-1-alobakin@pm.me> (raw)
In-Reply-To: <20210118193122.87271-1-alobakin@pm.me>
Introduce a new netdev_feature, NETIF_F_GRO_UDP, to allow user
to turn UDP GRO on and off when there is no socket, e.g. when
forwarding.
Defaults to off to not change current datapath.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
---
include/linux/netdev_features.h | 4 +++-
net/ethtool/common.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 934de56644e7..c6526aa13684 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -84,6 +84,7 @@ enum {
NETIF_F_GRO_FRAGLIST_BIT, /* Fraglist GRO */
NETIF_F_HW_MACSEC_BIT, /* Offload MACsec operations */
+ NETIF_F_GRO_UDP_BIT, /* Enable UDP GRO */
/*
* Add your fresh new feature above and remember to update
@@ -157,6 +158,7 @@ enum {
#define NETIF_F_GRO_FRAGLIST __NETIF_F(GRO_FRAGLIST)
#define NETIF_F_GSO_FRAGLIST __NETIF_F(GSO_FRAGLIST)
#define NETIF_F_HW_MACSEC __NETIF_F(HW_MACSEC)
+#define NETIF_F_GRO_UDP __NETIF_F(GRO_UDP)
/* Finds the next feature with the highest number of the range of start till 0.
*/
@@ -234,7 +236,7 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
/* Changeable features with no special hardware requirements that defaults to off. */
-#define NETIF_F_SOFT_FEATURES_OFF NETIF_F_GRO_FRAGLIST
+#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_FRAGLIST | NETIF_F_GRO_UDP)
#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
NETIF_F_HW_VLAN_CTAG_RX | \
diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index 24036e3055a1..e45128882372 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -68,6 +68,7 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
[NETIF_F_HW_TLS_RX_BIT] = "tls-hw-rx-offload",
[NETIF_F_GRO_FRAGLIST_BIT] = "rx-gro-list",
[NETIF_F_HW_MACSEC_BIT] = "macsec-hw-offload",
+ [NETIF_F_GRO_UDP_BIT] = "rx-gro-udp",
};
const char
--
2.30.0
next prev parent reply other threads:[~2021-01-18 19:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 19:31 [PATCH net-next 0/2] udp: allow forwarding of plain (non-fraglisted) UDP GRO packets Alexander Lobakin
2021-01-18 19:32 ` Alexander Lobakin [this message]
2021-01-18 19:33 ` [PATCH net-next 2/2] " Alexander Lobakin
2021-01-22 2:47 ` Willem de Bruijn
2021-01-22 11:19 ` Alexander Lobakin
2021-01-22 14:59 ` Willem de Bruijn
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