From: Christophe Leroy > Sent: 23 February 2024 10:07 ... > > +/* Ethernet headers are 14 bytes and NET_IP_ALIGN is used to align them */ > > +#define IP_ALIGNMENT (14 + NET_IP_ALIGN) > > Only if no VLAN. > > When using VLANs it is 4 bytes more. But why do you mind that at all ? Wasn't one architecture faulting on a double-register read? Where that had to be aligned (probably 8 bytes) but a normal memory read could be misaligned? I doubt it is valid to assume that the IP headers is 8 byte aligned when NET_IP_ALIGN is 2. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
