Re: [dpdk-dev] [PATCH v3 2/4] eventdev: add dev attribute get function

[Jerin Jacob <jerin.jacob@caviumnetworks.com>]

-----Original Message-----
> Date: Fri, 8 Sep 2017 16:36:53 +0100
> From: Harry van Haaren <harry.van.haaren@intel.com>
> To: dev@dpdk.org
> CC: jerin.jacob@caviumnetworks.com, Harry van Haaren
>  <harry.van.haaren@intel.com>
> Subject: [PATCH v3 2/4] eventdev: add dev attribute get function
> X-Mailer: git-send-email 2.7.4
> 
> This commit adds a device attribute function, allowing flexible
> fetching of device attributes, like port count or queue count.
> The unit tests and .map file are updated to the new function.
> 
> Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
> ---
>  lib/librte_eventdev/rte_eventdev.c           | 24 ++++++++--
>  lib/librte_eventdev/rte_eventdev.h           | 28 ++++++++---
>  lib/librte_eventdev/rte_eventdev_version.map |  2 +-
>  test/test/test_eventdev.c                    | 36 +++++++++++---
>  test/test/test_eventdev_octeontx.c           | 72 ++++++++++++++++++++--------
>  5 files changed, 124 insertions(+), 38 deletions(-)
> 
> diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
> index a02ff0a..4b1c0be 100644
> --- a/lib/librte_eventdev/rte_eventdev.c
> +++ b/lib/librte_eventdev/rte_eventdev.c
> @@ -743,13 +743,27 @@ rte_event_port_setup(uint8_t dev_id, uint8_t port_id,
>  	return 0;
>  }
>  
> -uint8_t
> -rte_event_port_count(uint8_t dev_id)
> +int
> +rte_event_dev_attr_get(uint8_t dev_id, uint32_t attr_id,
> +		       uint32_t *attr_value /*out */)
>  {
>  	struct rte_eventdev *dev;
>  
> +	if (!attr_value)
> +		return -EINVAL;
> +	RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
>  	dev = &rte_eventdevs[dev_id];
> -	return dev->data->nb_ports;
> +
> +	switch (attr_id) {
> +	case RTE_EVENT_DEV_ATTR_PORT_COUNT:
> +		*attr_value = dev->data->nb_ports;
> +		break;
> +	case RTE_EVENT_DEV_ATTR_QUEUE_COUNT:
> +		*attr_value = dev->data->nb_queues;
> +		break;

Same as previous "default case" comment.

> +	}
> +
> +	return 0;


With above change:

Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>