[dpdk-dev] DPDK secondary process access to mbufs using rte_pktmbuf_attach_extbuf()
Stephen Hemminger
stephen at networkplumber.org
Mon Dec 7 19:58:27 CET 2020
On Fri, 4 Dec 2020 13:07:01 +0000
Pranab Das <pranab_das at affirmednetworks.com> wrote:
> Hi
>
> I am wondering if the secondary DPDK processes can access the mbufs that are attached using rte_pktmbuf_attach_extbuf().
> The DPDK primary process allocates the buffer pool from the heap. Is there any example application that you can refer to ?
>
> Thank you very much
>
>
> * PKDas
When external buffers are used, they should come from memory that is visible and mapped
in both primary and secondary process (i.e hugepages). It is possible that a buggy
driver or application would not do that.
More information about the dev
mailing list