From: Saeed Mahameed > Sent: 31 January 2017 20:59 > From: Daniel Jurgens <dani...@mellanox.com> > > There is a hardware feature that will pad the start or end of a DMA to > be cache line aligned to avoid RMWs on the last cache line. The default > cache line size setting for this feature is 64B. This change configures > the hardware to use 128B alignment on systems with 128B cache lines.
What guarantees that the extra bytes are actually inside the receive skb's head and tail room? David