Implemented read_clock ethdev operation by adding iavf_dev_read_clock() feature to get current time in nanoseconds for scheduling packets based on transmit time.
Signed-off-by: Anurag Mandal <[email protected]> --- V2: Addressed minor typo drivers/net/intel/iavf/iavf.h | 1 + drivers/net/intel/iavf/iavf_ethdev.c | 24 ++++++++++++++++++++++++ drivers/net/intel/iavf/iavf_vchnl.c | 13 ++++++++++--- 3 files changed, 35 insertions(+), 3 deletions(-) diff --git a/drivers/net/intel/iavf/iavf.h b/drivers/net/intel/iavf/iavf.h index 293adaf6c9..416625d9fb 100644 --- a/drivers/net/intel/iavf/iavf.h +++ b/drivers/net/intel/iavf/iavf.h @@ -533,4 +533,5 @@ void iavf_handle_hw_reset(struct rte_eth_dev *dev, bool vf_initiated_reset); void iavf_set_no_poll(struct iavf_adapter *adapter, bool link_change); bool is_iavf_supported(struct rte_eth_dev *dev); void iavf_hash_uninit(struct iavf_adapter *ad); +int iavf_phc_get_time(struct iavf_adapter *adapter, uint64_t *time); #endif /* _IAVF_ETHDEV_H_ */ diff --git a/drivers/net/intel/iavf/iavf_ethdev.c b/drivers/net/intel/iavf/iavf_ethdev.c index e475b64971..1a36885107 100644 --- a/drivers/net/intel/iavf/iavf_ethdev.c +++ b/drivers/net/intel/iavf/iavf_ethdev.c @@ -165,6 +165,7 @@ static int iavf_set_mc_addr_list(struct rte_eth_dev *dev, struct rte_ether_addr *mc_addrs, uint32_t mc_addrs_num); static int iavf_tm_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg); +static int iavf_dev_read_clock(struct rte_eth_dev *dev, uint64_t *clock); static const struct rte_pci_id pci_id_iavf_map[] = { { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) }, @@ -264,6 +265,7 @@ static const struct eth_dev_ops iavf_eth_dev_ops = { .tx_done_cleanup = iavf_dev_tx_done_cleanup, .get_monitor_addr = iavf_get_monitor_addr, .tm_ops_get = iavf_tm_ops_get, + .read_clock = iavf_dev_read_clock, }; static int @@ -3662,6 +3664,28 @@ bool is_iavf_supported(struct rte_eth_dev *dev) return !strcmp(dev->device->driver->name, rte_iavf_pmd.driver.name); } +static int +iavf_dev_read_clock(struct rte_eth_dev *dev, uint64_t *clock) +{ + struct iavf_adapter *adapter = + IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter); + int ret; + + if (adapter->closed) + return -EIO; + + if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_CAP_PTP) || + !(vf->ptp_caps & VIRTCHNL_1588_PTP_CAP_READ_PHC)) + return -ENOTSUP; + + ret = iavf_phc_get_time(adapter, clock); + if (ret != 0) + return -EIO; + + return 0; +} + RTE_PMD_REGISTER_PCI(net_iavf, rte_iavf_pmd); RTE_PMD_REGISTER_PCI_TABLE(net_iavf, pci_id_iavf_map); RTE_PMD_REGISTER_KMOD_DEP(net_iavf, "* igb_uio | vfio-pci"); diff --git a/drivers/net/intel/iavf/iavf_vchnl.c b/drivers/net/intel/iavf/iavf_vchnl.c index f346837bf1..a63639549c 100644 --- a/drivers/net/intel/iavf/iavf_vchnl.c +++ b/drivers/net/intel/iavf/iavf_vchnl.c @@ -2521,9 +2521,8 @@ iavf_get_ptp_cap(struct iavf_adapter *adapter) } int -iavf_get_phc_time(struct ci_rx_queue *rxq) +iavf_phc_get_time(struct iavf_adapter *adapter, uint64_t *time) { - struct iavf_adapter *adapter = rxq->iavf_vsi->adapter; struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter); uint8_t msg_buf[IAVF_AQ_BUF_SZ] = {0}; struct virtchnl_phc_time phc_time; @@ -2543,9 +2542,17 @@ iavf_get_phc_time(struct ci_rx_queue *rxq) "Failed to execute command of VIRTCHNL_OP_1588_PTP_GET_TIME"); goto out; } - rxq->phc_time = ((struct virtchnl_phc_time *)args.out_buffer)->time; + *time = ((struct virtchnl_phc_time *)args.out_buffer)->time; out: rte_spinlock_unlock(&vf->phc_time_aq_lock); return err; } + +int +iavf_get_phc_time(struct ci_rx_queue *rxq) +{ + struct iavf_adapter *adapter = rxq->iavf_vsi->adapter; + + return iavf_phc_get_time(adapter, &rxq->phc_time); +} -- 2.34.1
