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net: dsa: felix: act upon the mqprio qopt in taprio offload

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The mqprio queue configuration can appear either through
TC_SETUP_QDISC_MQPRIO or through TC_SETUP_QDISC_TAPRIO. Make sure both
are treated in the same way.

Code does nothing new for now (except for rejecting multiple TXQs per
TC, which is a useless concept with DSA switches).

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2023-04-15 20:05:50 +03:00 committed by Jakub Kicinski
parent aac80140dc
commit a1ca9f8b07
1 changed files with 17 additions and 5 deletions
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22
drivers/net/dsa/ocelot/felix_vsc9959.c
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@ -1424,6 +1424,7 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
mutex_lock(&ocelot->tas_lock);
if (!taprio->enable) {
ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
ocelot_rmw_rix(ocelot, 0, QSYS_TAG_CONFIG_ENABLE,
QSYS_TAG_CONFIG, port);
@ -1436,15 +1437,19 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
return 0;
}
ret = ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
if (ret)
goto err_unlock;
if (taprio->cycle_time > NSEC_PER_SEC ||
taprio->cycle_time_extension >= NSEC_PER_SEC) {
ret = -EINVAL;
goto err;
goto err_reset_tc;
}
if (taprio->num_entries > VSC9959_TAS_GCL_ENTRY_MAX) {
ret = -ERANGE;
goto err;
goto err_reset_tc;
}
/* Enable guard band. The switch will schedule frames without taking
@ -1468,7 +1473,7 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
val = ocelot_read(ocelot, QSYS_PARAM_STATUS_REG_8);
if (val & QSYS_PARAM_STATUS_REG_8_CONFIG_PENDING) {
ret = -EBUSY;
goto err;
goto err_reset_tc;
}
ocelot_rmw_rix(ocelot,
@ -1503,12 +1508,19 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
!(val & QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE),
10, 100000);
if (ret)
goto err;
goto err_reset_tc;
ocelot_port->taprio = taprio_offload_get(taprio);
vsc9959_tas_guard_bands_update(ocelot, port);
err:
mutex_unlock(&ocelot->tas_lock);
return 0;
err_reset_tc:
taprio->mqprio.qopt.num_tc = 0;
ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
err_unlock:
mutex_unlock(&ocelot->tas_lock);
return ret;