nfp: using napi_build_skb() to replace build_skb()

The napi_build_skb() can reuse the skb in skb cache per CPU or
can allocate skbs in bulk, which helps improve the performance.
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Link: https://lore.kernel.org/r/20231026080058.22810-1-louis.peens@corigine.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/netronome/nfp/nfd3/dp.c

@@ -1070,7 +1070,7 @@ static int nfp_nfd3_rx(struct nfp_net_rx_ring *rx_ring, int budget)
 				nfp_repr_inc_rx_stats(netdev, pkt_len);
 		}
 
-		skb = build_skb(rxbuf->frag, true_bufsz);
+		skb = napi_build_skb(rxbuf->frag, true_bufsz);
 		if (unlikely(!skb)) {
 			nfp_nfd3_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
 			continue;

drivers/net/ethernet/netronome/nfp/nfdk/dp.c

@@ -1189,7 +1189,7 @@ static int nfp_nfdk_rx(struct nfp_net_rx_ring *rx_ring, int budget)
 				nfp_repr_inc_rx_stats(netdev, pkt_len);
 		}
 
-		skb = build_skb(rxbuf->frag, true_bufsz);
+		skb = napi_build_skb(rxbuf->frag, true_bufsz);
 		if (unlikely(!skb)) {
 			nfp_nfdk_rx_drop(dp, r_vec, rx_ring, rxbuf, NULL);
 			continue;