[dpdk-dev] [PATCH] nfp: fix mbuf releasing when segments

Ferruh Yigit ferruh.yigit at intel.com
Wed Apr 26 22:07:49 CEST 2017

On 4/26/2017 11:27 AM, Alejandro Lucero wrote:
> If segments are used, just mbufs previously linked to head descriptor of
> a mbuf chain are released. Other tx descriptor are used for the mbuf chain
> but they keep their linked mbufs without releasing them. It is not a fatal
> issue because sooner or later those descriptors will be head descriptors or
> just used for a single mbuf packet, then those linked mbufs will be released.
> However, this leads to apps needing bigger mbufs pools and some confusion
> about memory requeriments. Indeed, because larget pools, some performance
> impact could also be exptected due to cache misses.
> With this patch all tx descriptors will release linked mbufs inside the
> xmit function, and rte_pktmbuf_seg_free is used instead of rte_pktmbuf_free.
> Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>

Applied to dpdk-next-net/master, thanks.

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