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net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms 

One may notice that automatically-learnt entries 'never' expire, even
though the bridge configures the address age period at 300 seconds.

Actually the value written to hardware corresponds to a time interval
1000 times higher than intended, i.e. 83 hours.

Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Faineli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2020-05-04 01:20:27 +03:00 committed by David S. Miller
parent 21ce7f3e16
commit c0d7eccbc7
1 changed files with 9 additions and 2 deletions
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11
drivers/net/ethernet/mscc/ocelot.c
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@ -1451,8 +1451,15 @@ static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
{
ocelot_write(ocelot, ANA_AUTOAGE_AGE_PERIOD(msecs / 2),
ANA_AUTOAGE);
unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
/* Setting AGE_PERIOD to zero effectively disables automatic aging,
* which is clearly not what our intention is. So avoid that.
*/
if (!age_period)
age_period = 1;
ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
}
EXPORT_SYMBOL(ocelot_set_ageing_time);