Commit 9064ab48 authored by Mohsin Bashir's avatar Mohsin Bashir Committed by Paolo Abeni
Browse files

eth: fbnic: Prefetch packet headers on Rx 



Issue a prefetch for the start of the buffer on Rx to try to avoid cache
miss on packet headers.

Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarMohsin Bashir <mohsin.bashr@gmail.com>
Link: https://patch.msgid.link/20250813221319.3367670-5-mohsin.bashr@gmail.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 61f9a066

drivers/net/ethernet/meta/fbnic/fbnic_txrx.c

+1 −1
Original line number Diff line number Diff line
@@ -888,7 +888,7 @@ static void fbnic_pkt_prepare(struct fbnic_napi_vector *nv, u64 rcd, 


	/* Build frame around buffer */

	hdr_start = page_address(page) + hdr_pg_start;



	net_prefetch(pkt->buff.data);

	xdp_prepare_buff(&pkt->buff, hdr_start, headroom,

			 len - FBNIC_RX_PAD, true);