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author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-05-19 17:00:44 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2017-05-22 19:37:32 -0400 |
commit | a40c175b4a4a2c6f7e111ed6dc0186c75287dff0 (patch) | |
tree | 71b457ff4c6482d84e233cbdcd82380c06776150 /net/dsa/port.c | |
parent | 072bb1903a0ff810c6091d2f6bf7c80e76dab0e6 (diff) | |
download | linux-stable-a40c175b4a4a2c6f7e111ed6dc0186c75287dff0.tar.gz linux-stable-a40c175b4a4a2c6f7e111ed6dc0186c75287dff0.tar.bz2 linux-stable-a40c175b4a4a2c6f7e111ed6dc0186c75287dff0.zip |
net: dsa: move port state setters
Add a new port.c file to hold all DSA port-wide logic. This patch moves
in the code which sets a port state.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/port.c')
-rw-r--r-- | net/dsa/port.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c new file mode 100644 index 000000000000..6cc4704190fd --- /dev/null +++ b/net/dsa/port.c @@ -0,0 +1,55 @@ +/* + * 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 "dsa_priv.h" + +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); +} |