54b20f94cd
RXQ interrupts under Linux are based on the epoll mechanism. An expected order of operations is as follows: 1. Call rte_eth_dev_rx_intr_enable(), to arm the CQ for receiving events on data input. 2. Block on rte_epoll_wait() with an array of file descriptors representing the CQ events. Upon data arrival the kernel will signal an input event on the corresponding CQ fd. 3. Call rte_eth_dev_rx_intr_disable() after the event was received and continue in polling mode. The mlx4 implementation of rte_eth_dev_rx_intr_disable() is to get the CQ event and ack it. In practice applications may wake up from rte_epoll_wait() due to timeout with no event to ack but still call rte_eth_dev_rx_intr_disable() unconditionally. In such cases the call should return EAGAIN (since the file descriptors are non-blocked), as opposed to EINVAL which indicates a real failure. In case of EAGAIN the PMD should not warn on "unable to disable interrupt on rx queue". Signed-off-by: Ophir Munk <ophirmu@mellanox.com> Acked-by: Raslan Darawsheh <rasland@mellanox.com> |
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| buildtools | ||
| config | ||
| devtools | ||
| doc | ||
| drivers | ||
| examples | ||
| kernel | ||
| lib | ||
| license | ||
| mk | ||
| usertools | ||
| .editorconfig | ||
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| .gitignore | ||
| .travis.yml | ||
| ABI_VERSION | ||
| GNUmakefile | ||
| MAINTAINERS | ||
| Makefile | ||
| meson_options.txt | ||
| meson.build | ||
| README | ||
| VERSION | ||
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