diff options
| author | Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com> | 2023-02-16 10:07:31 +0800 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-03-07 13:45:56 -0800 |
| commit | ae4fe46983007bc46d87dcb284a5e5851c3e1c84 (patch) | |
| tree | e236e6c7d617ec81741c04b8b3fe09868baf6a86 /drivers/net/ethernet/intel/igc | |
| parent | 36e5e391a25af28dc1f4586f95d577b38ff4ed72 (diff) | |
igc: Add qbv_config_change_errors counter
Add ConfigChangeError(qbv_config_change_errors) when user try to set the
AdminBaseTime to past value while the current GCL is still running.
The ConfigChangeError counter should not be increased when a gate control
list is scheduled into the future.
User can use "ethtool -S <interface> | grep qbv_config_change_errors"
command to check the counter values.
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>
Diffstat (limited to 'drivers/net/ethernet/intel/igc')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_tsn.c | 12 |
4 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index df3e26c0cf01..79cc99af4317 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -185,6 +185,7 @@ struct igc_adapter { ktime_t base_time; ktime_t cycle_time; bool qbv_enable; + u32 qbv_config_change_errors; /* OS defined structs */ struct pci_dev *pdev; diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c index 5a26a7805ef8..0e2cb00622d1 100644 --- a/drivers/net/ethernet/intel/igc/igc_ethtool.c +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c @@ -67,6 +67,7 @@ static const struct igc_stats igc_gstrings_stats[] = { IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), IGC_STAT("tx_lpi_counter", stats.tlpic), IGC_STAT("rx_lpi_counter", stats.rlpic), + IGC_STAT("qbv_config_change_errors", qbv_config_change_errors), }; #define IGC_NETDEV_STAT(_net_stat) { \ diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 2928a6c73692..4992cca4029d 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -6049,6 +6049,7 @@ static int igc_tsn_clear_schedule(struct igc_adapter *adapter) adapter->base_time = 0; adapter->cycle_time = NSEC_PER_SEC; + adapter->qbv_config_change_errors = 0; for (i = 0; i < adapter->num_tx_queues; i++) { struct igc_ring *ring = adapter->tx_ring[i]; diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.c b/drivers/net/ethernet/intel/igc/igc_tsn.c index a386c8d61dbf..94a2b0dfb54d 100644 --- a/drivers/net/ethernet/intel/igc/igc_tsn.c +++ b/drivers/net/ethernet/intel/igc/igc_tsn.c @@ -114,6 +114,7 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter) static int igc_tsn_enable_offload(struct igc_adapter *adapter) { struct igc_hw *hw = &adapter->hw; + bool tsn_mode_reconfig = false; u32 tqavctrl, baset_l, baset_h; u32 sec, nsec, cycle; ktime_t base_time, systim; @@ -226,6 +227,10 @@ skip_cbs: } tqavctrl = rd32(IGC_TQAVCTRL) & ~IGC_TQAVCTRL_FUTSCDDIS; + + if (tqavctrl & IGC_TQAVCTRL_TRANSMIT_MODE_TSN) + tsn_mode_reconfig = true; + tqavctrl |= IGC_TQAVCTRL_TRANSMIT_MODE_TSN | IGC_TQAVCTRL_ENHANCED_QAV; cycle = adapter->cycle_time; @@ -239,6 +244,13 @@ skip_cbs: s64 n = div64_s64(ktime_sub_ns(systim, base_time), cycle); base_time = ktime_add_ns(base_time, (n + 1) * cycle); + + /* Increase the counter if scheduling into the past while + * Gate Control List (GCL) is running. + */ + if ((rd32(IGC_BASET_H) || rd32(IGC_BASET_L)) && + tsn_mode_reconfig) + adapter->qbv_config_change_errors++; } else { /* According to datasheet section 7.5.2.9.3.3, FutScdDis bit * has to be configured before the cycle time and base time. |