Tx behavior with different descriptors numberΒΆ

Given some descriptor count, verify queue setup and packet transmit

The test sets up Tx queue with specified descriptors number checking reported limits. IUT transmits a big packets burst to verify the number of packets device reported to send and tester received with respect to set up descriptors.

  1. Prepare default config

  2. Prepare TEST_ETHDEV_CONFIGURED state

  3. Set up Tx queue with specified number of Tx descriptors

  4. Check number of descriptor in Tx queue info if supported

  5. Prepare TEST_ETHDEV_STARTED state

  6. Prepare mbufs to be sent and pattern to match it by template

  7. Ensure that interface is UP on Tester side

  8. Send the mbufs from iut_port

  9. Receive and match the packets

  10. Check that no extra packets are received on Tester

  11. Check that received and sent packet counts match

Ivan Ilchenko Ivan.Ilchenko@oktetlabs.ru

Parameters:

template

Traffic template

nb_txd

Tx descriptors number
tx_desc_nb