Set new status of the Ethernet link flow

control test

Set new status of the Ethernet link flow control for Ethernet device

Make sure that it is possible to set new status of the Ethernet link flow control

1. Set flow control on the partner to 'autoneg=on, rx=on, tx=on'

2. Initialize EAL, prepare ethdev_state Ethernet device state

3. Get current flow control settings on port iut_port

4. Set new flow control settings on port iut_port

5. If ethdev_state == TEST_ETHDEV_STARTED :

   • Await link renegotiation

6. Get flow control settings

7. Compare flow control settings with written ones

8. If device is already started, stop it

9. Start the device to check settings once again

10. Get flow control settings once again

11. Compare obtained flow control settings vs previously obtained

Daniil Byshenko daniil.byshenko@oktetlabs.ru

Parameters:

ethdev_state	The state of Ethernet device Possible values: INITIALIZED, CONFIGURED, RX_SETUP_DONE, TX_SETUP_DONE, RXTX_SETUP_DONE, STARTED, STOPPED, CLOSED, DETACHED
mode	The Flow Control mode to set: NONE : flow control disabled RX_PAUSE : Rx pause frames enabled TX_PAUSE : Tx pause frames enabled FULL : flow control enabled in both directions
high_water	High water mark of Rx flow control, or -1 to leave the element unchanged
low_water	Low water mark of Rx flow control, or -1 to leave the element unchanged
pause_time	Pause frame transmit time, or -1 to leave the element unchanged
send_xon	Whether to send XON frames (0 or 1), or -1 to leave the element unchanged
autoneg	Flow control autonegotiation (0 or 1), or -1 to leave the element unchanged
mac_ctrl_frame_fwd	Forwarding of MAC control frames (0 or 1), or -1 to leave the element unchanged