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Commit 619e7a66 authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
Browse files

bnx2x: Prefetch the page containing the BD descriptor 



Signed-off-by: default avatarVladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6fe49bb9

drivers/net/bnx2x_main.c

+7 −0
Original line number Diff line number Diff line
@@ -1498,6 +1498,13 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget) 
		bd_prod = RX_BD(bd_prod);

		bd_cons = RX_BD(bd_cons);



		/* Prefetch the page containing the BD descriptor

		   at producer's index. It will be needed when new skb is

		   allocated */

		prefetch((void *)(PAGE_ALIGN((unsigned long)

					     (&fp->rx_desc_ring[bd_prod])) -

				  PAGE_SIZE + 1));



		cqe = &fp->rx_comp_ring[comp_ring_cons];

		cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;