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igc: Use default cycle 'start' and 'end' values for queues

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Sets default values for each queue cycle start and cycle end.
This allows some simplification in the handling of these
configurations as most TSN features in i225 require a cycle
to be configured.

In i225, cycle start and end time is required to be programmed
for CBS to work properly.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Aravindhan Gunasekaran <aravindhan.gunasekaran@intel.com>
Signed-off-by: Mallikarjuna Chilakala <mallikarjuna.chilakala@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:
Vinicius Costa Gomes 2021-08-09 20:23:38 +05:30 committed by Tony Nguyen
parent 4baf0e0b32
commit c814a2d2d4
2 changed files with 21 additions and 22 deletions
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37
drivers/net/ethernet/intel/igc/igc_main.c
View file

@ -5749,7 +5749,6 @@ static int igc_save_launchtime_params(struct igc_adapter *adapter, int queue,
bool enable)
{
struct igc_ring *ring;
int i;
if (queue < 0 || queue >= adapter->num_tx_queues)
return -EINVAL;
@ -5757,17 +5756,6 @@ static int igc_save_launchtime_params(struct igc_adapter *adapter, int queue,
ring = adapter->tx_ring[queue];
ring->launchtime_enable = enable;
if (adapter->base_time)
return 0;
adapter->cycle_time = NSEC_PER_SEC;
for (i = 0; i < adapter->num_tx_queues; i++) {
ring = adapter->tx_ring[i];
ring->start_time = 0;
ring->end_time = NSEC_PER_SEC;
}
return 0;
}
@ -5840,16 +5828,31 @@ static int igc_tsn_enable_launchtime(struct igc_adapter *adapter,
return igc_tsn_offload_apply(adapter);
}
static int igc_tsn_clear_schedule(struct igc_adapter *adapter)
{
int i;
adapter->base_time = 0;
adapter->cycle_time = NSEC_PER_SEC;
for (i = 0; i < adapter->num_tx_queues; i++) {
struct igc_ring *ring = adapter->tx_ring[i];
ring->start_time = 0;
ring->end_time = NSEC_PER_SEC;
}
return 0;
}
static int igc_save_qbv_schedule(struct igc_adapter *adapter,
struct tc_taprio_qopt_offload *qopt)
{
u32 start_time = 0, end_time = 0;
size_t n;
if (!qopt->enable) {
adapter->base_time = 0;
return 0;
}
if (!qopt->enable)
return igc_tsn_clear_schedule(adapter);
if (adapter->base_time)
return -EALREADY;
@ -6339,6 +6342,8 @@ static int igc_probe(struct pci_dev *pdev,
igc_ptp_init(adapter);
igc_tsn_clear_schedule(adapter);
/* reset the hardware with the new settings */
igc_reset(adapter);

6
drivers/net/ethernet/intel/igc/igc_tsn.c
View file

@ -41,12 +41,6 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter)
wr32(IGC_TQAVCTRL, tqavctrl);
for (i = 0; i < adapter->num_tx_queues; i++) {
struct igc_ring *ring = adapter->tx_ring[i];
ring->start_time = 0;
ring->end_time = 0;
ring->launchtime_enable = false;
wr32(IGC_TXQCTL(i), 0);
wr32(IGC_STQT(i), 0);
wr32(IGC_ENDQT(i), NSEC_PER_SEC);