[dpdk-dev] mbuf: how to set data to NULL?
Kavanagh, Mark B
mark.b.kavanagh at intel.com
Wed Dec 17 17:44:15 CET 2014
Hi,
DPDK 1.8.0 removes the data pointer from the mbuf structure, such that the start of the data in the segment buffer must be calculated (i.e. buf_addr + data_off = 'data').
Given this, what is the best approach to set the mbuf data to NULL (previously mbuf.data = NULL)?
As I see it, given an initialized mbuf, such that buf_addr is non-null, and data_off =RTE_PKTMBUF_HEADROOM, is it fair to say that the best solution is to memset to 0 from location (buf_addr + data_off) for a length of (data_len - data_off)?
Thanks in advance,
Mark
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