Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Vladimir Oltean <vladimir.oltean@nxp.com>
To: netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
"David S. Miller" <davem@davemloft.net>
Cc: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
Jiri Pirko <jiri@resnulli.us>, Ido Schimmel <idosch@idosch.org>,
Tobias Waldekranz <tobias@waldekranz.com>,
Roopa Prabhu <roopa@nvidia.com>,
Nikolay Aleksandrov <nikolay@nvidia.com>,
Stephen Hemminger <stephen@networkplumber.org>,
bridge@lists.linux-foundation.org,
Grygorii Strashko <grygorii.strashko@ti.com>,
Marek Behun <kabel@blackhole.sk>,
DENG Qingfang <dqfext@gmail.com>
Subject: [PATCH v4 net-next 03/15] mlxsw: spectrum: refactor prechangeupper sanity checks
Date: Mon, 19 Jul 2021 00:44:22 +0300 [thread overview]
Message-ID: <20210718214434.3938850-4-vladimir.oltean@nxp.com> (raw)
In-Reply-To: <20210718214434.3938850-1-vladimir.oltean@nxp.com>
Make more room for extra code in the NETDEV_PRECHANGEUPPER handlers from
mlxsw by moving the existing sanity checks to 2 new dedicated functions.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
v2->v3: patch is new
v3->v4: none
.../net/ethernet/mellanox/mlxsw/spectrum.c | 272 +++++++++++-------
1 file changed, 169 insertions(+), 103 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 88699e678544..c1b78878e5cf 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4055,6 +4055,118 @@ static bool mlxsw_sp_bridge_vxlan_is_valid(struct net_device *br_dev,
return true;
}
+static int
+mlxsw_sp_prechangeupper_sanity_checks(struct mlxsw_sp *mlxsw_sp,
+ struct net_device *dev,
+ struct net_device *lower_dev,
+ struct net_device *upper_dev,
+ struct netdev_notifier_changeupper_info *info,
+ struct netlink_ext_ack *extack)
+{
+ u16 proto;
+
+ if (!is_vlan_dev(upper_dev) &&
+ !netif_is_lag_master(upper_dev) &&
+ !netif_is_bridge_master(upper_dev) &&
+ !netif_is_ovs_master(upper_dev) &&
+ !netif_is_macvlan(upper_dev)) {
+ NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
+ return -EINVAL;
+ }
+
+ if (!info->linking)
+ return 0;
+
+ if (netif_is_bridge_master(upper_dev) &&
+ !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
+ mlxsw_sp_bridge_has_vxlan(upper_dev) &&
+ !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
+ return -EOPNOTSUPP;
+
+ if (netdev_has_any_upper_dev(upper_dev) &&
+ (!netif_is_bridge_master(upper_dev) ||
+ !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
+ upper_dev))) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Enslaving a port to a device that already has an upper device is not supported");
+ return -EINVAL;
+ }
+
+ if (netif_is_lag_master(upper_dev) &&
+ !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
+ info->upper_info, extack))
+ return -EINVAL;
+
+ if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Master device is a LAG master and this device has a VLAN");
+ return -EINVAL;
+ }
+
+ if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
+ !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) {
+ NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port");
+ return -EINVAL;
+ }
+
+ if (netif_is_macvlan(upper_dev) &&
+ !mlxsw_sp_rif_exists(mlxsw_sp, lower_dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "macvlan is only supported on top of router interfaces");
+ return -EOPNOTSUPP;
+ }
+
+ if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Master device is an OVS master and this device has a VLAN");
+ return -EINVAL;
+ }
+
+ if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) {
+ NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port");
+ return -EINVAL;
+ }
+
+ if (netif_is_bridge_master(upper_dev)) {
+ br_vlan_get_proto(upper_dev, &proto);
+ if (br_vlan_enabled(upper_dev) &&
+ proto != ETH_P_8021Q && proto != ETH_P_8021AD) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Enslaving a port to a bridge with unknown VLAN protocol is not supported");
+ return -EOPNOTSUPP;
+ }
+ if (vlan_uses_dev(lower_dev) &&
+ br_vlan_enabled(upper_dev) &&
+ proto == ETH_P_8021AD) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Enslaving a port that already has a VLAN upper to an 802.1ad bridge is not supported");
+ return -EOPNOTSUPP;
+ }
+ }
+
+ if (netif_is_bridge_port(lower_dev) && is_vlan_dev(upper_dev)) {
+ struct net_device *br_dev = netdev_master_upper_dev_get(lower_dev);
+
+ if (br_vlan_enabled(br_dev)) {
+ br_vlan_get_proto(br_dev, &proto);
+ if (proto == ETH_P_8021AD) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN uppers are not supported on a port enslaved to an 802.1ad bridge");
+ return -EOPNOTSUPP;
+ }
+ }
+ }
+
+ if (is_vlan_dev(upper_dev) &&
+ ntohs(vlan_dev_vlan_proto(upper_dev)) != ETH_P_8021Q) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN uppers are only supported with 802.1q VLAN protocol");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
struct net_device *dev,
unsigned long event, void *ptr)
@@ -4065,7 +4177,6 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
struct net_device *upper_dev;
struct mlxsw_sp *mlxsw_sp;
int err = 0;
- u16 proto;
mlxsw_sp_port = netdev_priv(dev);
mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
@@ -4075,84 +4186,15 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
switch (event) {
case NETDEV_PRECHANGEUPPER:
upper_dev = info->upper_dev;
- if (!is_vlan_dev(upper_dev) &&
- !netif_is_lag_master(upper_dev) &&
- !netif_is_bridge_master(upper_dev) &&
- !netif_is_ovs_master(upper_dev) &&
- !netif_is_macvlan(upper_dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
- return -EINVAL;
- }
- if (!info->linking)
- break;
- if (netif_is_bridge_master(upper_dev) &&
- !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
- mlxsw_sp_bridge_has_vxlan(upper_dev) &&
- !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
- return -EOPNOTSUPP;
- if (netdev_has_any_upper_dev(upper_dev) &&
- (!netif_is_bridge_master(upper_dev) ||
- !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
- upper_dev))) {
- NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
- return -EINVAL;
- }
- if (netif_is_lag_master(upper_dev) &&
- !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
- info->upper_info, extack))
- return -EINVAL;
- if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Master device is a LAG master and this device has a VLAN");
- return -EINVAL;
- }
- if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
- !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) {
- NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port");
- return -EINVAL;
- }
- if (netif_is_macvlan(upper_dev) &&
- !mlxsw_sp_rif_exists(mlxsw_sp, lower_dev)) {
- NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
- return -EOPNOTSUPP;
- }
- if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Master device is an OVS master and this device has a VLAN");
- return -EINVAL;
- }
- if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port");
- return -EINVAL;
- }
- if (netif_is_bridge_master(upper_dev)) {
- br_vlan_get_proto(upper_dev, &proto);
- if (br_vlan_enabled(upper_dev) &&
- proto != ETH_P_8021Q && proto != ETH_P_8021AD) {
- NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a bridge with unknown VLAN protocol is not supported");
- return -EOPNOTSUPP;
- }
- if (vlan_uses_dev(lower_dev) &&
- br_vlan_enabled(upper_dev) &&
- proto == ETH_P_8021AD) {
- NL_SET_ERR_MSG_MOD(extack, "Enslaving a port that already has a VLAN upper to an 802.1ad bridge is not supported");
- return -EOPNOTSUPP;
- }
- }
- if (netif_is_bridge_port(lower_dev) && is_vlan_dev(upper_dev)) {
- struct net_device *br_dev = netdev_master_upper_dev_get(lower_dev);
-
- if (br_vlan_enabled(br_dev)) {
- br_vlan_get_proto(br_dev, &proto);
- if (proto == ETH_P_8021AD) {
- NL_SET_ERR_MSG_MOD(extack, "VLAN uppers are not supported on a port enslaved to an 802.1ad bridge");
- return -EOPNOTSUPP;
- }
- }
- }
- if (is_vlan_dev(upper_dev) &&
- ntohs(vlan_dev_vlan_proto(upper_dev)) != ETH_P_8021Q) {
- NL_SET_ERR_MSG_MOD(extack, "VLAN uppers are only supported with 802.1q VLAN protocol");
- return -EOPNOTSUPP;
- }
+
+ err = mlxsw_sp_prechangeupper_sanity_checks(mlxsw_sp,
+ dev, lower_dev,
+ upper_dev,
+ info,
+ extack);
+ if (err)
+ return err;
+
break;
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
@@ -4260,6 +4302,46 @@ static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
return 0;
}
+static int
+mlxsw_sp_vlan_prechangeupper_sanity_checks(struct mlxsw_sp *mlxsw_sp,
+ struct net_device *vlan_dev,
+ struct net_device *upper_dev,
+ struct netdev_notifier_changeupper_info *info,
+ struct netlink_ext_ack *extack)
+{
+ if (!netif_is_bridge_master(upper_dev) &&
+ !netif_is_macvlan(upper_dev)) {
+ NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
+ return -EINVAL;
+ }
+
+ if (!info->linking)
+ return 0;
+
+ if (netif_is_bridge_master(upper_dev) &&
+ !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
+ mlxsw_sp_bridge_has_vxlan(upper_dev) &&
+ !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
+ return -EOPNOTSUPP;
+
+ if (netdev_has_any_upper_dev(upper_dev) &&
+ (!netif_is_bridge_master(upper_dev) ||
+ !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
+ upper_dev))) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Enslaving a port to a device that already has an upper device is not supported");
+ return -EINVAL;
+ }
+
+ if (netif_is_macvlan(upper_dev) &&
+ !mlxsw_sp_rif_exists(mlxsw_sp, vlan_dev)) {
+ NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
struct net_device *dev,
unsigned long event, void *ptr,
@@ -4277,30 +4359,14 @@ static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
switch (event) {
case NETDEV_PRECHANGEUPPER:
upper_dev = info->upper_dev;
- if (!netif_is_bridge_master(upper_dev) &&
- !netif_is_macvlan(upper_dev)) {
- NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
- return -EINVAL;
- }
- if (!info->linking)
- break;
- if (netif_is_bridge_master(upper_dev) &&
- !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
- mlxsw_sp_bridge_has_vxlan(upper_dev) &&
- !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
- return -EOPNOTSUPP;
- if (netdev_has_any_upper_dev(upper_dev) &&
- (!netif_is_bridge_master(upper_dev) ||
- !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
- upper_dev))) {
- NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
- return -EINVAL;
- }
- if (netif_is_macvlan(upper_dev) &&
- !mlxsw_sp_rif_exists(mlxsw_sp, vlan_dev)) {
- NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
- return -EOPNOTSUPP;
- }
+
+ err = mlxsw_sp_vlan_prechangeupper_sanity_checks(mlxsw_sp,
+ vlan_dev,
+ upper_dev,
+ info, extack);
+ if (err)
+ return err;
+
break;
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
--
2.25.1
next prev parent reply other threads:[~2021-07-18 21:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-18 21:44 [PATCH v4 net-next 00/15] Allow forwarding for the software bridge data path to be offloaded to capable devices Vladimir Oltean
2021-07-18 21:44 ` [PATCH v4 net-next 01/15] net: dpaa2-switch: use extack in dpaa2_switch_port_bridge_join Vladimir Oltean
2021-07-19 9:17 ` Ioana Ciornei
2021-07-18 21:44 ` [PATCH v4 net-next 02/15] net: dpaa2-switch: refactor prechangeupper sanity checks Vladimir Oltean
2021-07-19 9:18 ` Ioana Ciornei
2021-07-18 21:44 ` Vladimir Oltean [this message]
2021-07-18 21:44 ` [PATCH v4 net-next 04/15] mlxsw: spectrum: refactor leaving an 8021q upper that is a bridge port Vladimir Oltean
2021-07-19 2:16 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 05/15] net: marvell: prestera: refactor prechangeupper sanity checks Vladimir Oltean
2021-07-19 2:20 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 06/15] net: switchdev: guard drivers against multiple obj replays on same bridge port Vladimir Oltean
2021-07-19 2:17 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 07/15] net: bridge: disambiguate offload_fwd_mark Vladimir Oltean
2021-07-19 2:26 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 08/15] net: bridge: switchdev: recycle unused hwdoms Vladimir Oltean
2021-07-18 21:44 ` [PATCH v4 net-next 09/15] net: bridge: switchdev: let drivers inform which bridge ports are offloaded Vladimir Oltean
2021-07-19 9:23 ` Ioana Ciornei
2021-07-20 7:53 ` Horatiu Vultur
2021-07-20 8:45 ` Vladimir Oltean
2021-07-18 21:44 ` [PATCH v4 net-next 10/15] net: bridge: switchdev object replay helpers for everybody Vladimir Oltean
2021-07-19 8:19 ` Vladimir Oltean
2021-07-19 9:26 ` Ioana Ciornei
2021-07-18 21:44 ` [PATCH v4 net-next 11/15] net: bridge: switchdev: allow the TX data plane forwarding to be offloaded Vladimir Oltean
2021-07-19 2:43 ` Florian Fainelli
2021-07-19 7:22 ` Vladimir Oltean
2021-07-18 21:44 ` [PATCH v4 net-next 12/15] net: dsa: track the number of switches in a tree Vladimir Oltean
2021-07-19 2:54 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 13/15] net: dsa: add support for bridge TX forwarding offload Vladimir Oltean
2021-07-19 2:51 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 14/15] net: dsa: mv88e6xxx: map virtual bridges with forwarding offload in the PVT Vladimir Oltean
2021-07-19 2:52 ` Florian Fainelli
2021-07-18 21:44 ` [PATCH v4 net-next 15/15] net: dsa: tag_dsa: offload the bridge forwarding process Vladimir Oltean
2021-07-19 2:47 ` Florian Fainelli
2021-07-19 7:41 ` Vladimir Oltean
2021-07-20 11:24 ` [PATCH v4 net-next 00/15] Allow forwarding for the software bridge data path to be offloaded to capable devices Ido Schimmel
2021-07-20 13:20 ` Vladimir Oltean
2021-07-20 13:51 ` Ido Schimmel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210718214434.3938850-4-vladimir.oltean@nxp.com \
--to=vladimir.oltean@nxp.com \
--cc=andrew@lunn.ch \
--cc=bridge@lists.linux-foundation.org \
--cc=davem@davemloft.net \
--cc=dqfext@gmail.com \
--cc=f.fainelli@gmail.com \
--cc=grygorii.strashko@ti.com \
--cc=idosch@idosch.org \
--cc=jiri@resnulli.us \
--cc=kabel@blackhole.sk \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=nikolay@nvidia.com \
--cc=roopa@nvidia.com \
--cc=stephen@networkplumber.org \
--cc=tobias@waldekranz.com \
--cc=vivien.didelot@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).