From 965d6b0287cf6324010c7eca624ddcc1555e24ba Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Sat, 19 Oct 2019 10:13:25 +0200 Subject: [PATCH] net: mvneta: move header prefetch in mvneta_swbm_rx_frame Move data buffer prefetch in mvneta_swbm_rx_frame after dma_sync_single_range_for_cpu Signed-off-by: Ilias Apalodimas Signed-off-by: Jesper Dangaard Brouer Signed-off-by: Lorenzo Bianconi Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 7ca3cd16d7814..64f59baa2a3c8 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2025,6 +2025,9 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp, rx_desc->buf_phys_addr, len, dma_dir); + /* Prefetch header */ + prefetch(data); + xdp->data_hard_start = data; xdp->data = data + MVNETA_SKB_HEADROOM + MVNETA_MH_SIZE; xdp->data_end = xdp->data + data_len; @@ -2122,14 +2125,10 @@ static int mvneta_rx_swbm(struct napi_struct *napi, while (rx_proc < budget && rx_proc < rx_todo) { struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq); u32 rx_status, index; - unsigned char *data; struct page *page; index = rx_desc - rxq->descs; page = (struct page *)rxq->buf_virt_addr[index]; - data = page_address(page); - /* Prefetch header */ - prefetch(data); rx_status = rx_desc->status; rx_proc++; -- 2.39.5