diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-01-07 16:42:29 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-01-07 18:58:25 -0800 |
| commit | 5cad43a52ee3caf451cd645baa4beb53a1733dae (patch) | |
| tree | 1be08c03790fe4bf965bfc133aaaffe380b9d7b8 /drivers/net/ethernet/mscc/ocelot.c | |
| parent | net: mscc: ocelot: fix incorrect balancing with down LAG ports (diff) | |
| download | wireguard-linux-5cad43a52ee3caf451cd645baa4beb53a1733dae.tar.xz wireguard-linux-5cad43a52ee3caf451cd645baa4beb53a1733dae.zip | |
net: dsa: felix: add port fast age support
Add support for flushing the MAC table on a given port in the ocelot
switch library, and use this functionality in the felix DSA driver.
This operation is needed when a port leaves a bridge to become
standalone, and when the learning is disabled, and when the STP state
changes to a state where no FDB entry should be present.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220107144229.244584-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot.c')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index 79e7df837740..b1311b656e17 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1341,6 +1341,43 @@ static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col, return 0; } +int ocelot_mact_flush(struct ocelot *ocelot, int port) +{ + int err; + + mutex_lock(&ocelot->mact_lock); + + /* Program ageing filter for a single port */ + ocelot_write(ocelot, ANA_ANAGEFIL_PID_EN | ANA_ANAGEFIL_PID_VAL(port), + ANA_ANAGEFIL); + + /* Flushing dynamic FDB entries requires two successive age scans */ + ocelot_write(ocelot, + ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_AGE), + ANA_TABLES_MACACCESS); + + err = ocelot_mact_wait_for_completion(ocelot); + if (err) { + mutex_unlock(&ocelot->mact_lock); + return err; + } + + /* And second... */ + ocelot_write(ocelot, + ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_AGE), + ANA_TABLES_MACACCESS); + + err = ocelot_mact_wait_for_completion(ocelot); + + /* Restore ageing filter */ + ocelot_write(ocelot, 0, ANA_ANAGEFIL); + + mutex_unlock(&ocelot->mact_lock); + + return err; +} +EXPORT_SYMBOL_GPL(ocelot_mact_flush); + int ocelot_fdb_dump(struct ocelot *ocelot, int port, dsa_fdb_dump_cb_t *cb, void *data) { |