005064e505
The caller can pass Tx or Rx free threshold value to the configuration structure for each ring. It determines when the Tx/Rx function should start cleaning up/refilling the descriptors. ENA was ignoring this value and doing it's own calculations. Now the user can configure ENA's behavior using this parameter and if this variable won't be set, the ENA will continue with the old behavior and will use it's own threshold value. The default value is not provided by the ENA in the ena_infos_get(), as it's being determined dynamically, depending on the requested ring size. Note that NULL check for Tx conf was removed from the function ena_tx_queue_setup(), as at this place the configuration will be either provided by the user or the default config will be used and it's handled by the upper (rte_ethdev) layer. Tx threshold shouldn't be used for the Tx cleanup budget as it can be inadequate to the used burst. Now the PMD tries to release mbufs for the ring until it will be depleted. Signed-off-by: Michal Krawczyk <mk@semihalf.com> Reviewed-by: Igor Chauskin <igorch@amazon.com> Reviewed-by: Shai Brandes <shaibran@amazon.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org