@@ -5901,7 +5901,7 @@ static int igc_tsn_enable_launchtime(struct igc_adapter *adapter,
if (err)
return err;
- return igc_tsn_offload_apply(adapter);
+ return igc_tsn_offload_apply(adapter, qopt->enable);
}
static int igc_tsn_clear_schedule(struct igc_adapter *adapter)
@@ -5925,6 +5925,7 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
struct tc_taprio_qopt_offload *qopt)
{
bool queue_configured[IGC_MAX_TX_QUEUES] = { };
+ struct igc_hw *hw = &adapter->hw;
u32 start_time = 0, end_time = 0;
size_t n;
@@ -5933,7 +5934,7 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
if (!qopt->enable)
return igc_tsn_clear_schedule(adapter);
- if (adapter->base_time)
+ if (igc_is_device_id_i225(hw) && adapter->base_time)
return -EALREADY;
if (!validate_schedule(adapter, qopt))
@@ -5999,7 +6000,7 @@ static int igc_tsn_enable_qbv_scheduling(struct igc_adapter *adapter,
if (err)
return err;
- return igc_tsn_offload_apply(adapter);
+ return igc_tsn_offload_apply(adapter, qopt->enable);
}
static int igc_save_cbs_params(struct igc_adapter *adapter, int queue,
@@ -6067,7 +6068,7 @@ static int igc_tsn_enable_cbs(struct igc_adapter *adapter,
if (err)
return err;
- return igc_tsn_offload_apply(adapter);
+ return igc_tsn_offload_apply(adapter, qopt->enable);
}
static int igc_setup_tc(struct net_device *dev, enum tc_setup_type type,
@@ -232,7 +232,7 @@ static int igc_tsn_enable_offload(struct igc_adapter *adapter)
wr32(IGC_TXQCTL(i), txqctl);
}
- tqavctrl = rd32(IGC_TQAVCTRL);
+ tqavctrl = rd32(IGC_TQAVCTRL) & ~(IGC_TQAVCTRL_FUTSCDDIS);
tqavctrl |= IGC_TQAVCTRL_TRANSMIT_MODE_TSN | IGC_TQAVCTRL_ENHANCED_QAV;
cycle = adapter->cycle_time;
@@ -249,8 +249,11 @@ static int igc_tsn_enable_offload(struct igc_adapter *adapter)
} else {
/* According to datasheet section 7.5.2.9.3.3, FutScdDis bit
* has to be configured before the cycle time and base time.
+ * Tx won't hang if there is a GCL is already running,
+ * so in this case we don't need to set FutScdDis.
*/
- if (igc_is_device_id_i226(hw))
+ if (igc_is_device_id_i226(hw) &&
+ !(rd32(IGC_BASET_H) || rd32(IGC_BASET_L)))
tqavctrl |= IGC_TQAVCTRL_FUTSCDDIS;
}
@@ -293,11 +296,13 @@ int igc_tsn_reset(struct igc_adapter *adapter)
return err;
}
-int igc_tsn_offload_apply(struct igc_adapter *adapter)
+int igc_tsn_offload_apply(struct igc_adapter *adapter, bool enable)
{
+ struct igc_hw *hw = &adapter->hw;
int err;
- if (netif_running(adapter->netdev)) {
+ if (netif_running(adapter->netdev) &&
+ (igc_is_device_id_i225(hw) || !enable)) {
schedule_work(&adapter->reset_task);
return 0;
}
@@ -4,7 +4,7 @@
#ifndef _IGC_TSN_H_
#define _IGC_TSN_H_
-int igc_tsn_offload_apply(struct igc_adapter *adapter);
+int igc_tsn_offload_apply(struct igc_adapter *adapter, bool enable);
int igc_tsn_reset(struct igc_adapter *adapter);
void igc_tsn_adjust_txtime_offset(struct igc_adapter *adapter);