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Date: Tue, 10 Jul 2018 16:26:45 +0530
From: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
To: Nikhil Rao <nikhil.rao@intel.com>, jerin.jacob@caviumnetworks.com,
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Subject: Re: [dpdk-dev] [PATCH 2/4] eventdev: add caps API and PMD callbacks
for eth Tx adapter
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Hi Nikhil,
On Fri, Jul 06, 2018 at 12:12:07PM +0530, Nikhil Rao wrote:
> The caps API allows the application to query if the transmit
> stage is implemented in the eventdev PMD or uses the common
> rte_service function. The PMD callbacks support the
> eventdev PMD implementation of the adapter.
>
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
> ---
> lib/librte_eventdev/rte_eventdev.h | 30 ++++-
> lib/librte_eventdev/rte_eventdev_pmd.h | 193 +++++++++++++++++++++++++++++++++
> lib/librte_eventdev/rte_eventdev.c | 19 ++++
> 3 files changed, 241 insertions(+), 1 deletion(-)
>
<...>
>
> diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
> index 801810e..a29fae1 100644
> --- a/lib/librte_eventdev/rte_eventdev.c
> +++ b/lib/librte_eventdev/rte_eventdev.c
> @@ -175,6 +175,25 @@
> (dev, cdev, caps) : -ENOTSUP;
> }
>
> +int __rte_experimental
> +rte_event_eth_tx_adapter_caps_get(uint8_t dev_id, uint32_t *caps)
> +{
The caps get API needs to be similar to rx adapter caps get i.e. it needs to
have the eth_port_id as a parameter so that the underlying event dev driver can
expose INTERNAL PORT capability as not all ethdev drivers have the capability
to interact with the eventdevs internal port.
rte_event_eth_tx_adapter_caps_get(uint8_t dev_id, uint16_t eth_port_id,
uint32_t *caps);
> + struct rte_eventdev *dev;
> +
> + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
> +
> + dev = &rte_eventdevs[dev_id];
> +
> + if (caps == NULL)
> + return -EINVAL;
> + *caps = 0;
> +
> + return dev->dev_ops->eth_tx_adapter_caps_get ?
> + (*dev->dev_ops->eth_tx_adapter_caps_get)(dev,
> + caps)
> + : 0;
> +}
> +
> static inline int
> rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
> {
> --
> 1.8.3.1
>
Thanks,
Pavan.