a1b87645d3
This patch fixes txonly raw packets allocations by resetting the available headroom. Indeed, some PMDs such as Virtio might prepend some data to the packet, resulting in mbuf's data_off field to be decremented each time the mbuf gets re-allocated. For Virtio PMD, it means that we use only single descriptors for the first times mbufs get allocated, as at some point there is not enough headroom to store the header. Other alternative would be use standard API to allocate the packets, which does reset the headroom, but the impact on performance is too big to consider this an option. Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Acked-by: Olivier Matz <olivier.matz@6wind.com> |
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| README | ||
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