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path: root/drivers/net/dsa/ocelot/felix_vsc9959.c
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Diffstat (limited to 'drivers/net/dsa/ocelot/felix_vsc9959.c')
-rw-r--r--drivers/net/dsa/ocelot/felix_vsc9959.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 789fe08cae50..2473bebe48e6 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -1227,8 +1227,12 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
if (taprio->num_entries > VSC9959_TAS_GCL_ENTRY_MAX)
return -ERANGE;
- ocelot_rmw(ocelot, QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM(port) |
- QSYS_TAS_PARAM_CFG_CTRL_ALWAYS_GUARD_BAND_SCH_Q,
+ /* Set port num and disable ALWAYS_GUARD_BAND_SCH_Q, which means set
+ * guard band to be implemented for nonschedule queues to schedule
+ * queues transition.
+ */
+ ocelot_rmw(ocelot,
+ QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM(port),
QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM_M |
QSYS_TAS_PARAM_CFG_CTRL_ALWAYS_GUARD_BAND_SCH_Q,
QSYS_TAS_PARAM_CFG_CTRL);