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 <yoong.siang.song@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -92,6 +92,10 @@ struct stmmac_rx_buffer {
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dma_addr_t sec_addr;
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};
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struct stmmac_xdp_buff {
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struct xdp_buff xdp;
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};
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struct stmmac_rx_queue {
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u32 rx_count_frames;
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u32 queue_index;
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@ -5190,7 +5190,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
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enum dma_data_direction dma_dir;
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unsigned int desc_size;
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struct sk_buff *skb = NULL;
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struct xdp_buff xdp;
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struct stmmac_xdp_buff ctx;
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int xdp_status = 0;
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int buf_sz;
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@ -5311,17 +5311,17 @@ read_again:
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dma_sync_single_for_cpu(priv->device, buf->addr,
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buf1_len, dma_dir);
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xdp_init_buff(&xdp, buf_sz, &rx_q->xdp_rxq);
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xdp_prepare_buff(&xdp, page_address(buf->page),
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xdp_init_buff(&ctx.xdp, buf_sz, &rx_q->xdp_rxq);
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xdp_prepare_buff(&ctx.xdp, page_address(buf->page),
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buf->page_offset, buf1_len, false);
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pre_len = xdp.data_end - xdp.data_hard_start -
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pre_len = ctx.xdp.data_end - ctx.xdp.data_hard_start -
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buf->page_offset;
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skb = stmmac_xdp_run_prog(priv, &xdp);
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skb = stmmac_xdp_run_prog(priv, &ctx.xdp);
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/* Due xdp_adjust_tail: DMA sync for_device
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* cover max len CPU touch
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*/
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sync_len = xdp.data_end - xdp.data_hard_start -
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sync_len = ctx.xdp.data_end - ctx.xdp.data_hard_start -
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buf->page_offset;
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sync_len = max(sync_len, pre_len);
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@ -5331,7 +5331,7 @@ read_again:
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if (xdp_res & STMMAC_XDP_CONSUMED) {
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page_pool_put_page(rx_q->page_pool,
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virt_to_head_page(xdp.data),
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virt_to_head_page(ctx.xdp.data),
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sync_len, true);
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buf->page = NULL;
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priv->dev->stats.rx_dropped++;
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@ -5359,7 +5359,7 @@ read_again:
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if (!skb) {
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/* XDP program may expand or reduce tail */
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buf1_len = xdp.data_end - xdp.data;
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buf1_len = ctx.xdp.data_end - ctx.xdp.data;
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skb = napi_alloc_skb(&ch->rx_napi, buf1_len);
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if (!skb) {
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@ -5369,7 +5369,7 @@ read_again:
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}
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/* XDP program may adjust header */
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skb_copy_to_linear_data(skb, xdp.data, buf1_len);
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skb_copy_to_linear_data(skb, ctx.xdp.data, buf1_len);
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skb_put(skb, buf1_len);
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/* Data payload copied into SKB, page ready for recycle */
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