From: "K. Y. Srinivasan" <k...@microsoft.com> Date: Tue, 1 Dec 2015 16:42:58 -0800
> In an attempt to avoid having to allocate memory on the send path, the netvsc > driver was requesting additional head room so that both rndis header and the > netvsc packet (the state that had to persist) could be placed in the skb. > Since the amount of head room requested was exceeding the default head room > as set in LL_MAX_HEADER, we were forcing a reallocation of skb. > > With this patch-set, I have reduced the size of the netvsc packet to less > than 20 bytes and with this reduction we don't need to ask for any additional > headroom. We place the rndis header in the skb head room and we place the > netvsc packet in control buffer area in the skb. > > V2: - Addressed review comments: > - Eliminated more fields from netvsc packet structure. > > V3: - Fixed a typo in patch: hv_netvsc: Don't ask for additional head room > in the skb. Series applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
