Hi, Are you sure that this is the line that gives the error? How did you define m_pool?
Regarding coping one byte, copy using simple assignment should be the most efficient way. If you want to make sure it is just 8 bits, do a bit wise and (& 0xff). Daniel On Mon, Mar 17, 2014 at 10:27 AM, sabu kurian <sabu2kurian at gmail.com> wrote: > A little bit of correction on the second format: > > iphdr->packet_id = rte_bswap16(0x0001); // This one gives error as well.... > > Any idea on what could be wrong ? > > Thanks > > > > > > > On Mon, Mar 17, 2014 at 1:51 PM, sabu kurian <sabu2kurian at gmail.com> > wrote: > > > Hello friends, > > > > I get a error like "dereferencing pointer to incomplete type", when I try > > to fill in the IPv4 headers. > > > > Below is the code snippet: > > > > struct ether_hdr *ehdr = rte_pktmbuf_mtod(m_pool, struct ether_hdr *); > > > > struct ipv4_hdr *iphdr = (struct ipv4_hdr *)(&ehdr[1]); > > > > > > iphdr->packet_id = (uint16_t)0x0001; //This gives error. > > > > rte_bswap16(iphdr->packet_id,0x0001); //This format also gives the same > > error. > > > > And also what is the best way to copy an 8 bit (1 byte) value for fields > > like 'type_of_service' ? will rte_memcpy() work for it ? > > > > > > > > Thanks in advance.... > > > > >
