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igc: enable Qbv configuration for 2nd GCL

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Make reset task only executes for i225 and Qbv disabling to allow
i226 configure for 2nd GCL without resetting the adapter.

In i226, Tx won't hang if there is a GCL is already running, so in
this case we don't need to set FutScdDis bit.

Signed-off-by: Tan Tee Min <tee.min.tan@linux.intel.com>
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Tan Tee Min 2022-12-15 00:29:08 +08:00 committed by Tony Nguyen
parent b8897dc54e
commit 5ac1231ac1
3 changed files with 15 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/ethernet/intel/igc/igc_main.c
View File

@ -6020,7 +6020,7 @@ 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)
@ -6044,6 +6044,7 @@ 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;
int i;
@ -6056,7 +6057,7 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter,
if (qopt->base_time < 0)
return -ERANGE;
if (adapter->base_time)
if (igc_is_device_id_i225(hw) && adapter->base_time)
return -EALREADY;
if (!validate_schedule(adapter, qopt))
@ -6133,7 +6134,7 @@ 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,
@ -6201,7 +6202,7 @@ 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,

13
drivers/net/ethernet/intel/igc/igc_tsn.c
View File

@ -225,7 +225,7 @@ skip_cbs:
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;
@ -242,8 +242,11 @@ skip_cbs:
} 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;
}
@ -286,11 +289,13 @@ 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;
}

2
drivers/net/ethernet/intel/igc/igc_tsn.h
View File

@ -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);