Re: [dpdk-dev] raw frame to rte_mbuf

["Etai Lev-Ran" <elevran@gmail.com>]

Hi Pepe,

In addition, you may want to consider the frame's lifetime, to ensure memory
is used and released
in a valid way.
When sending, it may be de-referenced by DPDK and consequently a memory free
may be tried. 
Hence, it is important that the raw buffer used for the ARP packet is
allocated with a 
reference added (or, alternately, just add-ref to the packet and ensure
it'll not be freed by DPDK
directly).

Regards,
Etai

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Prashant Upadhyaya
Sent: Tuesday, November 12, 2013 11:15 AM
To: Jose Gavine Cueto; dev@dpdk.org
Subject: Re: [dpdk-dev] raw frame to rte_mbuf

Hi Pepe,

Ofcourse a simple cast will not suffice.
Please look the rte_mbuf structure in the header files and let me know if
you still have the confusion.
There is a header and payload. Your raw frame will go in the payload.


Regards
-Prashant

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jose Gavine Cueto
Sent: Tuesday, November 12, 2013 1:49 PM
To: dev@dpdk.org
Subject: [dpdk-dev] raw frame to rte_mbuf

Hi,

In DPDK how should a raw ethernet frame converted to rte_mbuf * ?  For
example if I have an ARP packet:

void * arp_pkt

how should this be converted to an rte_mbuf * for transmission, does a
simple cast suffice ?

Cheers,
Pepe

--
To stop learning is like to stop loving.




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