* [dts] The semantics of rte_eth_rx_burst and rte_eth_rx_queue_count
@ 2015-07-27 18:04 Masoud Moshref Javadi
2015-07-27 22:47 ` Masoud Moshref Javadi
0 siblings, 1 reply; 2+ messages in thread
From: Masoud Moshref Javadi @ 2015-07-27 18:04 UTC (permalink / raw)
To: dts
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
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [dts] The semantics of rte_eth_rx_burst and rte_eth_rx_queue_count
2015-07-27 18:04 [dts] The semantics of rte_eth_rx_burst and rte_eth_rx_queue_count Masoud Moshref Javadi
@ 2015-07-27 22:47 ` Masoud Moshref Javadi
0 siblings, 0 replies; 2+ messages in thread
From: Masoud Moshref Javadi @ 2015-07-27 22:47 UTC (permalink / raw)
To: dts
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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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