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igc: Set QBVCYCLET_S to 0 for TSN Basic Scheduling 

According to datasheet section 8.12.19, when there's no TSN offloading
Shadow_QbvCycle bit[29:0] must be set to zero for basic scheduling.

Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Muhammad Husaini Zulkifli 2021-07-10 07:40:17 +08:00 committed by Tony Nguyen
parent 47bca7de6a
commit 62f5bbfb2a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/igc/igc_tsn.c
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@ -52,7 +52,7 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter)
wr32(IGC_ENDQT(i), NSEC_PER_SEC);
}
wr32(IGC_QBVCYCLET_S, NSEC_PER_SEC);
wr32(IGC_QBVCYCLET_S, 0);
wr32(IGC_QBVCYCLET, NSEC_PER_SEC);
adapter->flags &= ~IGC_FLAG_TSN_QBV_ENABLED;