[dpdk-dev] [PATCH v2 03/22] ethdev: add function to release port in local process

Burakov, Anatoly anatoly.burakov at intel.com
Thu Jun 21 10:06:17 CEST 2018


On 21-Jun-18 3:00 AM, Qi Zhang wrote:
> Add driver API rte_eth_release_port_private to support the
> requirement that an ethdev only be released on secondary process,
> so only local state be set to unused , share data will not be
> reset so primary process can still use it.
> 
> Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> ---

<snip>

>   
>   /**
>    * @internal
> + * Release the specified ethdev port in local process, only set to ethdev
> + * state to unused, but not reset share data since it assume other process
> + * is still using it, typically it is called by secondary process.
> + *
> + * @param eth_dev
> + * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
> + * @return
> + *   - 0 on success, negative on error
> + */
> +int rte_eth_dev_release_port_private(struct rte_eth_dev *eth_dev);
> +

As far as i can tell, even though the function is marked as internal, it 
should still be exported in the .map file (see rte_eth_dev_allocate() 
for example).

Thomas and others, does this count as new API? Should this be marked as 
__rte_experimental? Presumably, we guarantee ABI stability for internal 
functions too, so my expectation would be yes.

> +/**
> + * @internal
>    * Release device queues and clear its configuration to force the user
>    * application to reconfigure it. It is for internal use only.
>    *
> 


-- 
Thanks,
Anatoly


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