c414455701
Depending on HW revision readless communcation between host and device may be unavailable. In that case prevent PMD from setting up readless communication mechanism. "readless" refers to ability to read ENA registers without actually issuing read request from host (x86). Instead, host programs 2 registers on the device that triggers a DMA from device to host and reports a register value. However, this functionality is not going to be available in all types of devices. The decision if this mode is supported or not, is taken from revision_id in pci configuration space. Signed-off-by: Alexander Matushevsky <matua@amazon.com> Signed-off-by: Jakub Palider <jpa@semihalf.com> Signed-off-by: Jan Medala <jan@semihalf.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 license for the core libraries and drivers. The kernel components are GPLv2 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