mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-07 11:28:32 +00:00
![Arkadi Sharshevsky](/assets/img/avatar_default.png)
>From all switchdev devices only DSA requires special FDB dump. This is due to lack of ability for syncing the hardware learned FDBs with the bridge. Due to this it is removed from switchdev and moved inside DSA. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
226 lines
5.4 KiB
C
226 lines
5.4 KiB
C
/*
|
|
* Handling of a single switch port
|
|
*
|
|
* Copyright (c) 2017 Savoir-faire Linux Inc.
|
|
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/if_bridge.h>
|
|
#include <linux/notifier.h>
|
|
|
|
#include "dsa_priv.h"
|
|
|
|
static int dsa_port_notify(struct dsa_port *dp, unsigned long e, void *v)
|
|
{
|
|
struct raw_notifier_head *nh = &dp->ds->dst->nh;
|
|
int err;
|
|
|
|
err = raw_notifier_call_chain(nh, e, v);
|
|
|
|
return notifier_to_errno(err);
|
|
}
|
|
|
|
int dsa_port_set_state(struct dsa_port *dp, u8 state,
|
|
struct switchdev_trans *trans)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
int port = dp->index;
|
|
|
|
if (switchdev_trans_ph_prepare(trans))
|
|
return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP;
|
|
|
|
if (ds->ops->port_stp_state_set)
|
|
ds->ops->port_stp_state_set(ds, port, state);
|
|
|
|
if (ds->ops->port_fast_age) {
|
|
/* Fast age FDB entries or flush appropriate forwarding database
|
|
* for the given port, if we are moving it from Learning or
|
|
* Forwarding state, to Disabled or Blocking or Listening state.
|
|
*/
|
|
|
|
if ((dp->stp_state == BR_STATE_LEARNING ||
|
|
dp->stp_state == BR_STATE_FORWARDING) &&
|
|
(state == BR_STATE_DISABLED ||
|
|
state == BR_STATE_BLOCKING ||
|
|
state == BR_STATE_LISTENING))
|
|
ds->ops->port_fast_age(ds, port);
|
|
}
|
|
|
|
dp->stp_state = state;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dsa_port_set_state_now(struct dsa_port *dp, u8 state)
|
|
{
|
|
int err;
|
|
|
|
err = dsa_port_set_state(dp, state, NULL);
|
|
if (err)
|
|
pr_err("DSA: failed to set STP state %u (%d)\n", state, err);
|
|
}
|
|
|
|
int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br)
|
|
{
|
|
struct dsa_notifier_bridge_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.br = br,
|
|
};
|
|
int err;
|
|
|
|
/* Here the port is already bridged. Reflect the current configuration
|
|
* so that drivers can program their chips accordingly.
|
|
*/
|
|
dp->bridge_dev = br;
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_BRIDGE_JOIN, &info);
|
|
|
|
/* The bridging is rolled back on error */
|
|
if (err)
|
|
dp->bridge_dev = NULL;
|
|
|
|
return err;
|
|
}
|
|
|
|
void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br)
|
|
{
|
|
struct dsa_notifier_bridge_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.br = br,
|
|
};
|
|
int err;
|
|
|
|
/* Here the port is already unbridged. Reflect the current configuration
|
|
* so that drivers can program their chips accordingly.
|
|
*/
|
|
dp->bridge_dev = NULL;
|
|
|
|
err = dsa_port_notify(dp, DSA_NOTIFIER_BRIDGE_LEAVE, &info);
|
|
if (err)
|
|
pr_err("DSA: failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n");
|
|
|
|
/* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer,
|
|
* so allow it to be in BR_STATE_FORWARDING to be kept functional
|
|
*/
|
|
dsa_port_set_state_now(dp, BR_STATE_FORWARDING);
|
|
}
|
|
|
|
int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
|
|
struct switchdev_trans *trans)
|
|
{
|
|
struct dsa_switch *ds = dp->ds;
|
|
|
|
/* bridge skips -EOPNOTSUPP, so skip the prepare phase */
|
|
if (switchdev_trans_ph_prepare(trans))
|
|
return 0;
|
|
|
|
if (ds->ops->port_vlan_filtering)
|
|
return ds->ops->port_vlan_filtering(ds, dp->index,
|
|
vlan_filtering);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock,
|
|
struct switchdev_trans *trans)
|
|
{
|
|
unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock);
|
|
unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
|
|
struct dsa_notifier_ageing_time_info info = {
|
|
.ageing_time = ageing_time,
|
|
.trans = trans,
|
|
};
|
|
|
|
if (switchdev_trans_ph_prepare(trans))
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
|
|
|
|
dp->ageing_time = ageing_time;
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
|
|
}
|
|
|
|
int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
|
|
u16 vid)
|
|
{
|
|
struct dsa_notifier_fdb_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.addr = addr,
|
|
.vid = vid,
|
|
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_mdb_add(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb,
|
|
struct switchdev_trans *trans)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.trans = trans,
|
|
.mdb = mdb,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_mdb_del(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_mdb *mdb)
|
|
{
|
|
struct dsa_notifier_mdb_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.mdb = mdb,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info);
|
|
}
|
|
|
|
int dsa_port_vlan_add(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan,
|
|
struct switchdev_trans *trans)
|
|
{
|
|
struct dsa_notifier_vlan_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.trans = trans,
|
|
.vlan = vlan,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info);
|
|
}
|
|
|
|
int dsa_port_vlan_del(struct dsa_port *dp,
|
|
const struct switchdev_obj_port_vlan *vlan)
|
|
{
|
|
struct dsa_notifier_vlan_info info = {
|
|
.sw_index = dp->ds->index,
|
|
.port = dp->index,
|
|
.vlan = vlan,
|
|
};
|
|
|
|
return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info);
|
|
}
|