From: Masoud Moshref Javadi <masood.moshref.j@gmail.com>
To: "dts@dpdk.org" <dts@dpdk.org>
Subject: Re: [dts] The semantics of rte_eth_rx_burst and rte_eth_rx_queue_count
Date: Mon, 27 Jul 2015 15:47:14 -0700 [thread overview]
Message-ID: <55B6B4F2.4040408@gmail.com> (raw)
In-Reply-To: <55B6729E.60104@gmail.com>
Thanks
I figured that out by looking at the source code.
On 7/27/2015 11:04 AM, Masoud Moshref Javadi wrote:
> Hi,
>
> I don't understand the semantics of these two methods
> (rte_eth_rx_burst and rte_eth_rx_queue_count).
>
> For rte_eth_rx_burst with burst of B.
>
> * Does that mean it will not return until it receive at least B
> packets? or it just returns with whatever packets that are in the
> NIC's queue?
> * Does that mean it will wait at least x clocks before returning 0
> to B packets?
>
> For rte_eth_rx_queue_count:
>
> * Does it go to the NIC and poll the # filled entries at its queue?
> if yes, how much is its overhead?
> * Do we need to call rte_eth_rx_burst (or similar methods) to make
> it updated?
>
>
> Regards
>
prev parent reply other threads:[~2015-07-27 22:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-27 18:04 Masoud Moshref Javadi
2015-07-27 22:47 ` Masoud Moshref Javadi [this message]
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