Issue a prefetch for the start of the buffer on Rx to try to avoid cache miss on packet headers. Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Mohsin Bashir <mohsin.bashr@xxxxxxxxx> --- drivers/net/ethernet/meta/fbnic/fbnic_txrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c b/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c index 2adbe175ac09..65d1e40addec 100644 --- a/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c +++ b/drivers/net/ethernet/meta/fbnic/fbnic_txrx.c @@ -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); -- 2.47.3
