[dpdk-dev] raw frame to rte_mbuf
Etai Lev-Ran
elevran at gmail.com
Tue Nov 12 11:08:42 CET 2013
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 at dpdk.org] On Behalf Of Prashant Upadhyaya
Sent: Tuesday, November 12, 2013 11:15 AM
To: Jose Gavine Cueto; dev at 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 at dpdk.org] On Behalf Of Jose Gavine Cueto
Sent: Tuesday, November 12, 2013 1:49 PM
To: dev at 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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