From 5b24324a907c996faf47ea3969499e04beea9c4f Mon Sep 17 00:00:00 2001 From: Song Yoong Siang Date: Sat, 15 Apr 2023 14:45:01 +0800 Subject: net: stmmac: introduce wrapper for struct xdp_buff Introduce struct stmmac_xdp_buff as a preparation to support XDP Rx metadata via kfuncs. Signed-off-by: Song Yoong Siang Reviewed-by: Jacob Keller Acked-by: Jesper Dangaard Brouer Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 4 ++++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 18 +++++++++--------- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 3d15e1e92e18..ac8ccf851708 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -92,6 +92,10 @@ struct stmmac_rx_buffer { dma_addr_t sec_addr; }; +struct stmmac_xdp_buff { + struct xdp_buff xdp; +}; + struct stmmac_rx_queue { u32 rx_count_frames; u32 queue_index; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index d7fcab057032..10b9f8912bb2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5190,7 +5190,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) enum dma_data_direction dma_dir; unsigned int desc_size; struct sk_buff *skb = NULL; - struct xdp_buff xdp; + struct stmmac_xdp_buff ctx; int xdp_status = 0; int buf_sz; @@ -5311,17 +5311,17 @@ read_again: dma_sync_single_for_cpu(priv->device, buf->addr, buf1_len, dma_dir); - xdp_init_buff(&xdp, buf_sz, &rx_q->xdp_rxq); - xdp_prepare_buff(&xdp, page_address(buf->page), + xdp_init_buff(&ctx.xdp, buf_sz, &rx_q->xdp_rxq); + xdp_prepare_buff(&ctx.xdp, page_address(buf->page), buf->page_offset, buf1_len, false); - pre_len = xdp.data_end - xdp.data_hard_start - + pre_len = ctx.xdp.data_end - ctx.xdp.data_hard_start - buf->page_offset; - skb = stmmac_xdp_run_prog(priv, &xdp); + skb = stmmac_xdp_run_prog(priv, &ctx.xdp); /* Due xdp_adjust_tail: DMA sync for_device * cover max len CPU touch */ - sync_len = xdp.data_end - xdp.data_hard_start - + sync_len = ctx.xdp.data_end - ctx.xdp.data_hard_start - buf->page_offset; sync_len = max(sync_len, pre_len); @@ -5331,7 +5331,7 @@ read_again: if (xdp_res & STMMAC_XDP_CONSUMED) { page_pool_put_page(rx_q->page_pool, - virt_to_head_page(xdp.data), + virt_to_head_page(ctx.xdp.data), sync_len, true); buf->page = NULL; priv->dev->stats.rx_dropped++; @@ -5359,7 +5359,7 @@ read_again: if (!skb) { /* XDP program may expand or reduce tail */ - buf1_len = xdp.data_end - xdp.data; + buf1_len = ctx.xdp.data_end - ctx.xdp.data; skb = napi_alloc_skb(&ch->rx_napi, buf1_len); if (!skb) { @@ -5369,7 +5369,7 @@ read_again: } /* XDP program may adjust header */ - skb_copy_to_linear_data(skb, xdp.data, buf1_len); + skb_copy_to_linear_data(skb, ctx.xdp.data, buf1_len); skb_put(skb, buf1_len); /* Data payload copied into SKB, page ready for recycle */ -- cgit v1.2.3