[v3,2/7] net/idpf: save main time by alarm
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Commit Message
Using alarm to save main time from registers every 1 second.
Fixes: 8c6098afa075 ("common/idpf: add Rx/Tx data path")
Cc: stable@dpdk.org
Signed-off-by: Wenjing Qiao <wenjing.qiao@intel.com>
---
drivers/net/idpf/idpf_ethdev.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
@@ -761,6 +761,12 @@ idpf_dev_start(struct rte_eth_dev *dev)
goto err_vec;
}
+ if (dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) {
+ rte_eal_alarm_set(1000 * 1000,
+ &idpf_dev_read_time_hw,
+ (void *)base);
+ }
+
ret = idpf_vc_vectors_alloc(vport, req_vecs_num);
if (ret != 0) {
PMD_DRV_LOG(ERR, "Failed to allocate interrupt vectors");
@@ -810,6 +816,7 @@ static int
idpf_dev_stop(struct rte_eth_dev *dev)
{
struct idpf_vport *vport = dev->data->dev_private;
+ struct idpf_adapter *base = vport->adapter;
if (vport->stopped == 1)
return 0;
@@ -822,6 +829,11 @@ idpf_dev_stop(struct rte_eth_dev *dev)
idpf_vc_vectors_dealloc(vport);
+ if (dev->data->dev_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) {
+ rte_eal_alarm_cancel(idpf_dev_read_time_hw,
+ base);
+ }
+
vport->stopped = 1;
return 0;