From: "Hans J. Schultz" <netdev@kapio-technology.com>
To: davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org,
"Hans J. Schultz" <netdev@kapio-technology.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
Kurt Kanzenbach <kurt@linutronix.de>,
Hauke Mehrtens <hauke@hauke-m.de>,
Woojung Huh <woojung.huh@microchip.com>,
UNGLinuxDriver@microchip.com, Sean Wang <sean.wang@mediatek.com>,
Landen Chao <Landen.Chao@mediatek.com>,
DENG Qingfang <dqfext@gmail.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Claudiu Manoil <claudiu.manoil@nxp.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Jiri Pirko <jiri@resnulli.us>, Ivan Vecera <ivecera@redhat.com>,
Roopa Prabhu <roopa@nvidia.com>,
Nikolay Aleksandrov <razor@blackwall.org>,
Shuah Khan <shuah@kernel.org>,
Russell King <linux@armlinux.org.uk>,
Christian Marangi <ansuelsmth@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Yuwei Wang <wangyuweihx@gmail.com>,
Petr Machata <petrm@nvidia.com>, Ido Schimmel <idosch@nvidia.com>,
Florent Fourcot <florent.fourcot@wifirst.fr>,
Hans Schultz <schultz.hans@gmail.com>,
Joachim Wiberg <troglobit@gmail.com>,
Amit Cohen <amcohen@nvidia.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
bridge@lists.linux-foundation.org,
linux-kselftest@vger.kernel.org
Subject: [PATCH v8 net-next 06/12] net: bridge: enable bridge to send and receive blackhole FDB entries
Date: Tue, 18 Oct 2022 18:56:13 +0200 [thread overview]
Message-ID: <20221018165619.134535-7-netdev@kapio-technology.com> (raw)
In-Reply-To: <20221018165619.134535-1-netdev@kapio-technology.com>
Enable the bridge to receive blackhole FDB entries from drivers with
SWITCHDEV_FDB_ADD_TO_BRIDGE notifications and send them to drivers
with RTM_NEWNEIGH notifications.
Signed-off-by: Hans J. Schultz <netdev@kapio-technology.com>
---
include/net/switchdev.h | 1 +
net/bridge/br.c | 3 ++-
net/bridge/br_fdb.c | 19 ++++++++++++++++---
net/bridge/br_private.h | 3 ++-
net/bridge/br_switchdev.c | 1 +
5 files changed, 22 insertions(+), 5 deletions(-)
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index ca0312b78294..39727902354e 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -249,6 +249,7 @@ struct switchdev_notifier_fdb_info {
u8 added_by_user:1,
is_local:1,
locked:1,
+ blackhole:1,
offloaded:1;
};
diff --git a/net/bridge/br.c b/net/bridge/br.c
index e0e2df2fa278..85fc529b6a9f 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -166,7 +166,8 @@ static int br_switchdev_event(struct notifier_block *unused,
case SWITCHDEV_FDB_ADD_TO_BRIDGE:
fdb_info = ptr;
err = br_fdb_external_learn_add(br, p, fdb_info->addr, fdb_info->vid,
- fdb_info->locked, false);
+ fdb_info->locked, fdb_info->is_local,
+ fdb_info->blackhole, false);
if (err) {
err = notifier_from_errno(err);
break;
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 8d207b1416f7..ef973d21d7bd 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -1145,7 +1145,7 @@ static int __br_fdb_add(struct ndmsg *ndm, struct net_bridge *br,
"FDB entry towards bridge must be permanent");
return -EINVAL;
}
- err = br_fdb_external_learn_add(br, p, addr, vid, false, true);
+ err = br_fdb_external_learn_add(br, p, addr, vid, false, false, false, true);
} else {
spin_lock_bh(&br->hash_lock);
err = fdb_add_entry(br, p, addr, ndm, nlh_flags, vid, ext_flags, nfea_tb);
@@ -1401,7 +1401,7 @@ void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p)
int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
const unsigned char *addr, u16 vid, bool locked,
- bool swdev_notify)
+ bool local, bool blackhole, bool swdev_notify)
{
struct net_bridge_fdb_entry *fdb;
bool modified = false;
@@ -1418,12 +1418,15 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
if (swdev_notify)
flags |= BIT(BR_FDB_ADDED_BY_USER);
- if (!p)
+ if (!p || local)
flags |= BIT(BR_FDB_LOCAL);
if (locked)
flags |= BIT(BR_FDB_LOCKED);
+ if (blackhole)
+ flags |= BIT(BR_FDB_BLACKHOLE);
+
fdb = fdb_create(br, p, addr, vid, flags);
if (!fdb) {
err = -ENOMEM;
@@ -1447,11 +1450,21 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
modified = true;
}
+ if (local != test_bit(BR_FDB_LOCAL, &fdb->flags)) {
+ change_bit(BR_FDB_LOCAL, &fdb->flags);
+ modified = true;
+ }
+
if (locked != test_bit(BR_FDB_LOCKED, &fdb->flags)) {
change_bit(BR_FDB_LOCKED, &fdb->flags);
modified = true;
}
+ if (blackhole != test_bit(BR_FDB_BLACKHOLE, &fdb->flags)) {
+ change_bit(BR_FDB_BLACKHOLE, &fdb->flags);
+ modified = true;
+ }
+
if (swdev_notify)
set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 3e9f4d1fbd60..4202c80e465e 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -812,7 +812,8 @@ int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p);
int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
const unsigned char *addr, u16 vid,
- bool locked, bool swdev_notify);
+ bool locked, bool local, bool blackhole,
+ bool swdev_notify);
int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
const unsigned char *addr, u16 vid,
bool swdev_notify);
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index ccf1b4cffdd0..ce7b80c782ec 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -137,6 +137,7 @@ static void br_switchdev_fdb_populate(struct net_bridge *br,
item->offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags);
item->is_local = test_bit(BR_FDB_LOCAL, &fdb->flags);
item->locked = test_bit(BR_FDB_LOCKED, &fdb->flags);
+ item->blackhole = test_bit(BR_FDB_BLACKHOLE, &fdb->flags);
item->info.dev = (!p || item->is_local) ? br->dev : p->dev;
item->info.ctx = ctx;
}
--
2.34.1
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next prev parent reply other threads:[~2022-10-19 15:33 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-18 16:56 [PATCH v8 net-next 00/12] Extend locked port feature with FDB locked flag (MAC-Auth/MAB) Hans J. Schultz
2022-10-18 16:56 ` [PATCH v8 net-next 01/12] net: bridge: add locked entry fdb flag to extend locked port feature Hans J. Schultz
2022-10-20 12:54 ` Ido Schimmel
2022-10-20 19:37 ` netdev
2022-10-21 0:11 ` Jakub Kicinski
2022-10-18 16:56 ` [PATCH v8 net-next 02/12] net: bridge: add blackhole fdb entry flag Hans J. Schultz
2022-10-20 13:06 ` Ido Schimmel
2022-10-20 19:34 ` netdev
2022-10-23 5:32 ` netdev
2022-10-24 17:08 ` Jakub Kicinski
2022-10-18 16:56 ` [PATCH v8 net-next 03/12] net: bridge: enable bridge to install locked fdb entries from drivers Hans J. Schultz
2022-10-20 12:55 ` Vladimir Oltean
2022-10-20 19:29 ` netdev
2022-10-20 22:43 ` Vladimir Oltean
2022-10-18 16:56 ` [PATCH v8 net-next 04/12] net: bridge: add MAB flag to hardware offloadable flags Hans J. Schultz
2022-10-18 16:56 ` [PATCH v8 net-next 05/12] net: dsa: propagate the locked flag down through the DSA layer Hans J. Schultz
2022-10-20 13:02 ` Vladimir Oltean
2022-10-20 13:24 ` Ido Schimmel
2022-10-20 13:35 ` Vladimir Oltean
2022-10-20 13:57 ` Ido Schimmel
2022-10-20 14:04 ` Vladimir Oltean
2022-10-20 14:58 ` Ido Schimmel
2022-10-20 15:25 ` Vladimir Oltean
2022-10-20 14:11 ` Vladimir Oltean
2022-10-20 15:23 ` Ido Schimmel
2022-10-20 15:36 ` Vladimir Oltean
2022-10-20 18:47 ` netdev
2022-10-20 23:57 ` Vladimir Oltean
2022-10-20 19:43 ` netdev
2022-10-20 22:52 ` Vladimir Oltean
2022-10-18 16:56 ` Hans J. Schultz [this message]
2022-10-18 16:56 ` [PATCH v8 net-next 07/12] net: dsa: send the blackhole " Hans J. Schultz
2022-10-18 16:56 ` [PATCH v8 net-next 08/12] drivers: net: dsa: add fdb entry flags incoming to switchcore drivers Hans J. Schultz
2022-10-20 13:12 ` Vladimir Oltean
2022-10-18 16:56 ` [PATCH v8 net-next 09/12] net: dsa: mv88e6xxx: allow reading FID when handling ATU violations Hans J. Schultz
2022-10-18 16:56 ` [PATCH v8 net-next 10/12] net: dsa: mv88e6xxx: mac-auth/MAB implementation Hans J. Schultz
2022-10-20 13:25 ` Vladimir Oltean
2022-10-20 19:59 ` netdev
2022-10-20 20:20 ` netdev
2022-10-20 22:57 ` Vladimir Oltean
2022-10-21 6:47 ` netdev
2022-10-21 11:22 ` Vladimir Oltean
2022-10-21 13:16 ` netdev
2022-10-21 16:30 ` Vladimir Oltean
2022-10-21 17:18 ` netdev
2022-10-21 17:30 ` Vladimir Oltean
2022-10-21 17:39 ` netdev
2022-10-21 18:14 ` Vladimir Oltean
2022-10-22 7:24 ` netdev
2022-10-22 12:02 ` Vladimir Oltean
2022-10-22 13:15 ` netdev
2022-10-22 8:50 ` Oleksandr Mazur
2022-10-22 11:32 ` Vladimir Oltean
2022-10-22 12:55 ` Oleksandr Mazur
2022-10-22 13:39 ` Vladimir Oltean
2022-10-22 13:49 ` Ido Schimmel
2022-10-22 14:11 ` netdev
2022-10-22 14:49 ` Vladimir Oltean
2022-10-23 6:53 ` Ido Schimmel
2022-10-20 21:09 ` netdev
2022-10-20 23:00 ` Vladimir Oltean
2022-10-22 7:31 ` netdev
2022-10-22 11:55 ` Vladimir Oltean
2022-10-18 16:56 ` [PATCH v8 net-next 11/12] net: dsa: mv88e6xxx: add blackhole ATU entries Hans J. Schultz
2022-10-20 13:11 ` Vladimir Oltean
2022-10-18 16:56 ` [PATCH v8 net-next 12/12] selftests: forwarding: add MAB tests to locked port tests Hans J. Schultz
2022-10-20 12:35 ` Ido Schimmel
2022-10-19 18:58 ` [PATCH v8 net-next 00/12] Extend locked port feature with FDB locked flag (MAC-Auth/MAB) Jakub Kicinski
2022-10-20 9:55 ` Ido Schimmel
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