* RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE requirements
@ 2022-07-14 10:46 Morten Brørup
2022-07-22 15:24 ` Olivier Matz
0 siblings, 1 reply; 2+ messages in thread
From: Morten Brørup @ 2022-07-14 10:46 UTC (permalink / raw)
To: Olivier Matz, dev
Looking at rte_pktmbuf_prefree_seg() [1], the list of described requirements for RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE [2] seems incomplete. The following two requirements are missing:
- The mbufs must be direct.
- The mbufs must be non-segmented.
[1] https://elixir.bootlin.com/dpdk/latest/source/lib/mbuf/rte_mbuf.h#L1308
[2] https://elixir.bootlin.com/dpdk/latest/source/lib/ethdev/rte_ethdev.h#L1701
Med venlig hilsen / Kind regards,
-Morten Brørup
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE requirements
2022-07-14 10:46 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE requirements Morten Brørup
@ 2022-07-22 15:24 ` Olivier Matz
0 siblings, 0 replies; 2+ messages in thread
From: Olivier Matz @ 2022-07-22 15:24 UTC (permalink / raw)
To: Morten Brørup; +Cc: dev
Hi Morten,
Yes, you are right. These 2 conditions are also needed if one wants to use
rte_mbuf_raw_free() or rte_mempool_put*() functions to free the mbufs.
Olivier
On Thu, Jul 14, 2022 at 12:46:24PM +0200, Morten Brørup wrote:
> Looking at rte_pktmbuf_prefree_seg() [1], the list of described requirements for RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE [2] seems incomplete. The following two requirements are missing:
> - The mbufs must be direct.
> - The mbufs must be non-segmented.
>
> [1] https://elixir.bootlin.com/dpdk/latest/source/lib/mbuf/rte_mbuf.h#L1308
> [2] https://elixir.bootlin.com/dpdk/latest/source/lib/ethdev/rte_ethdev.h#L1701
>
>
> Med venlig hilsen / Kind regards,
> -Morten Brørup
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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