From: Andy Gospodarek <gospo@xxxxxxxxxxxx> If we are using aggregation rings with XDP enabled, allocate page buffers for the aggregation rings from the page_pool. Signed-off-by: Andy Gospodarek <gospo@xxxxxxxxxxxx> Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 77 ++++++++++++++--------- 1 file changed, 47 insertions(+), 30 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 2a919905f256..f89a45042f38 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -739,7 +739,6 @@ static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping, page_pool_recycle_direct(rxr->page_pool, page); return NULL; } - *mapping += bp->rx_dma_offset; return page; } @@ -781,6 +780,7 @@ int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, if (!page) return -ENOMEM; + mapping += bp->rx_dma_offset; rx_buf->data = page; rx_buf->data_ptr = page_address(page) + bp->rx_offset; } else { @@ -841,33 +841,41 @@ static inline int bnxt_alloc_rx_page(struct bnxt *bp, u16 sw_prod = rxr->rx_sw_agg_prod; unsigned int offset = 0; - if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) { - page = rxr->rx_page; - if (!page) { + if (BNXT_RX_PAGE_MODE(bp)) { + page = __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp); + + if (!page) + return -ENOMEM; + + } else { + if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) { + page = rxr->rx_page; + if (!page) { + page = alloc_page(gfp); + if (!page) + return -ENOMEM; + rxr->rx_page = page; + rxr->rx_page_offset = 0; + } + offset = rxr->rx_page_offset; + rxr->rx_page_offset += BNXT_RX_PAGE_SIZE; + if (rxr->rx_page_offset == PAGE_SIZE) + rxr->rx_page = NULL; + else + get_page(page); + } else { page = alloc_page(gfp); if (!page) return -ENOMEM; - rxr->rx_page = page; - rxr->rx_page_offset = 0; } - offset = rxr->rx_page_offset; - rxr->rx_page_offset += BNXT_RX_PAGE_SIZE; - if (rxr->rx_page_offset == PAGE_SIZE) - rxr->rx_page = NULL; - else - get_page(page); - } else { - page = alloc_page(gfp); - if (!page) - return -ENOMEM; - } - mapping = dma_map_page_attrs(&pdev->dev, page, offset, - BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, - DMA_ATTR_WEAK_ORDERING); - if (dma_mapping_error(&pdev->dev, mapping)) { - __free_page(page); - return -EIO; + mapping = dma_map_page_attrs(&pdev->dev, page, offset, + BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, + DMA_ATTR_WEAK_ORDERING); + if (dma_mapping_error(&pdev->dev, mapping)) { + __free_page(page); + return -EIO; + } } if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) @@ -1105,7 +1113,7 @@ static u32 __bnxt_rx_agg_pages(struct bnxt *bp, } dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE, - DMA_FROM_DEVICE, + bp->rx_dir, DMA_ATTR_WEAK_ORDERING); total_frag_len += frag_len; @@ -2936,14 +2944,23 @@ static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr) if (!page) continue; - dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, - BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, - DMA_ATTR_WEAK_ORDERING); + if (BNXT_RX_PAGE_MODE(bp)) { + dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, + BNXT_RX_PAGE_SIZE, bp->rx_dir, + DMA_ATTR_WEAK_ORDERING); + rx_agg_buf->page = NULL; + __clear_bit(i, rxr->rx_agg_bmap); - rx_agg_buf->page = NULL; - __clear_bit(i, rxr->rx_agg_bmap); + page_pool_recycle_direct(rxr->page_pool, page); + } else { + dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, + BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, + DMA_ATTR_WEAK_ORDERING); + rx_agg_buf->page = NULL; + __clear_bit(i, rxr->rx_agg_bmap); - __free_page(page); + __free_page(page); + } } skip_rx_agg_free: -- 2.18.1
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