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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi everyone, I have been recently trying to get hardware transmit timestamping working a= nd am having some issues. I have seen that 'rte_eth_timesync_enable' is ret= urning 1 which does not appear to be a documented return value (https://doc= .dpdk.org/api-22.11/rte__ethdev_8h.html#a5f45aabbfbb08ef986caddc70c48df4c).= I assume because of this I subsequently cannot use 'rte_eth_timesync_read_= tx_timestamp' as an error occurs. This is a simple breakdown of API calls: rte_eal_init() rte_eth_dev_count_avail() rte_eth_dev_is_valid_port() rte_eth_dev_info_get() rte_eth_dev_adjust_nb_rx_tx_desc() rte_eth_dev_configure(port_id, 1 /* rxrings */, 1 /* txrings */, &port_conf= ) rte_eth_rx_queue_setup() rte_eth_tx_queue_setup() rte_eth_dev_start() rte_eth_timesync_enable() - returns 1 rte_eth_macaddr_get() rte_eth_promiscuous_enable() rte_eth_link_get() ... rte_eth_tx_burst() rte_eth_timesync_read_tx_timestamp() - timespec =3D 0 offloads: portConf.txmode.offloads |=3D RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE; portConf.txmode.offloads |=3D RTE_ETH_TX_OFFLOAD_MULTI_SEGS; portConf.rxmode.offloads |=3D RTE_ETH_RX_OFFLOAD_TIMESTAMP; Without rte_eth_timesync_enable and rte_eth_timesync_read_tx_timestamp, the= tx burst works as expected. If I ignore the return of rte_eth_timesync_ena= ble and try to read the tx timestamp and the timespec is always 0. Other info: * HW: Connect-6 Dx * Mlxconfig: REAL_TIME_CLOCK_ENABLE=3D1 * Sys info: RHEL 4.18.0-477.27.1.el8_8.x86_64 * DPDK API version 22.11.3 sudo ethtool -T Time stamping parameters for ens1f0np0: Capabilities: hardware-transmit hardware-receive hardware-raw-clock PTP Hardware Clock: 1 Hardware Transmit Timestamp Modes: off on Hardware Receive Filter Modes: none all driver: mlx5_core version: 23.07-0.5.1 firmware-version: 22.36.1010 (DEL0000000027) Any help or guidance would be much appreciated. Kind regards, Tim --_000_SJ0PR03MB70245F8A3862D1C6FBE4D45F88DFASJ0PR03MB7024namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi everyone,

 

I have been recently trying to get hardware transmit= timestamping working and am having some issues. I have seen that ‘rt= e_eth_timesync_enable’ is returning 1 which does not appear to be a d= ocumented return value (https://doc.dpdk.org/api-22.1= 1/rte__ethdev_8h.html#a5f45aabbfbb08ef986caddc70c48df4c). I assume because of this I subsequently cannot use ‘rte_eth_timesync= _read_tx_timestamp’ as an error occurs.

 

This is a simple breakdown of API calls:<= /p>

 

rte_eal_init()

rte_eth_dev_count_avail()

rte_eth_dev_is_valid_port()

rte_eth_dev_info_get()

rte_eth_dev_adjust_nb_rx_tx_desc()

rte_eth_dev_configure(port_id, 1 /* rxrings */, 1 /*= txrings */, &port_conf)

rte_eth_rx_queue_setup()

rte_eth_tx_queue_setup()

rte_eth_dev_start()

rte_eth_timesync_enable() – returns 1<= /o:p>

rte_eth_macaddr_get()

rte_eth_promiscuous_enable()

rte_eth_link_get()

…

rte_eth_tx_burst()

rte_eth_timesync_read_tx_timestamp() – time= spec =3D 0

 

offloads:

 

portConf.txmode.offloads |=3D RTE_ETH_TX_OFFLOAD_MBU= F_FAST_FREE;

portConf.txmode.offloads |=3D RTE_ETH_TX_OFFLOAD_MUL= TI_SEGS;

 

portConf.rxmode.offloads |=3D RTE_ETH_RX_OFFLOAD_TIM= ESTAMP;

 

 

Without rte_eth_timesync_enable and rte_eth_timesync= _read_tx_timestamp, the tx burst works as expected. If I ignore the return = of rte_eth_timesync_enable and try to read the tx timestamp and the timespe= c is always 0.

 

Other info:

  • HW: Connect-6 Dx
  • Mlxconfig: REAL_TIME_CLOCK_ENA= BLE=3D1
  • Sys info: RHEL 4.18.0-477.27.1.el8_8.x86_64
  • DPDK API version 22.11.3

 

sudo ethtool -T

Time stamping parameters for ens1f0np0:

Capabilities:

        hardware-= transmit

        hardware-= receive

        hardware-= raw-clock

PTP Hardware Clock: 1

Hardware Transmit Timestamp Modes:

        off<= /o:p>

        on

Hardware Receive Filter Modes:

        none=

        all<= /o:p>

 

driver: mlx5_core

version: 23.07-0.5.1

firmware-version: 22.36.1010 (DEL0000000027)

 

Any help or guidance would be much appreciated.=

 

Kind regards,

Tim

 

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