diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index fa6eae2e7ed8..b2a275d8504c 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -642,7 +642,7 @@ struct rtl8169_private { struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ dma_addr_t TxPhyAddr; dma_addr_t RxPhyAddr; - void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */ + struct page *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */ struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ u16 cp_cmd; u16 irq_mask; @@ -5261,12 +5261,13 @@ static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) } static void rtl8169_free_rx_databuff(struct rtl8169_private *tp, - void **data_buff, struct RxDesc *desc) + struct page **data_buff, + struct RxDesc *desc) { - dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr), - R8169_RX_BUF_SIZE, DMA_FROM_DEVICE); + dma_unmap_page(tp_to_dev(tp), le64_to_cpu(desc->addr), + R8169_RX_BUF_SIZE, DMA_FROM_DEVICE); - kfree(*data_buff); + __free_pages(*data_buff, get_order(R8169_RX_BUF_SIZE)); *data_buff = NULL; rtl8169_make_unusable_by_asic(desc); } @@ -5281,38 +5282,30 @@ static inline void rtl8169_mark_to_asic(struct RxDesc *desc) desc->opts1 = cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE); } -static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp, - struct RxDesc *desc) +static struct page *rtl8169_alloc_rx_data(struct rtl8169_private *tp, + struct RxDesc *desc) { - void *data; - dma_addr_t mapping; struct device *d = tp_to_dev(tp); int node = dev_to_node(d); + dma_addr_t mapping; + struct page *data; - data = kmalloc_node(R8169_RX_BUF_SIZE, GFP_KERNEL, node); + data = alloc_pages_node(node, GFP_KERNEL, get_order(R8169_RX_BUF_SIZE)); if (!data) return NULL; - /* Memory should be properly aligned, but better check. */ - if (!IS_ALIGNED((unsigned long)data, 8)) { - netdev_err_once(tp->dev, "RX buffer not 8-byte-aligned\n"); - goto err_out; - } - - mapping = dma_map_single(d, data, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE); + mapping = dma_map_page(d, data, 0, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(d, mapping))) { if (net_ratelimit()) netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n"); - goto err_out; + __free_pages(data, get_order(R8169_RX_BUF_SIZE)); + return NULL; } desc->addr = cpu_to_le64(mapping); rtl8169_mark_to_asic(desc); - return data; -err_out: - kfree(data); - return NULL; + return data; } static void rtl8169_rx_clear(struct rtl8169_private *tp) @@ -5337,7 +5330,7 @@ static int rtl8169_rx_fill(struct rtl8169_private *tp) unsigned int i; for (i = 0; i < NUM_RX_DESC; i++) { - void *data; + struct page *data; data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i); if (!data) { @@ -5892,6 +5885,7 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget for (rx_left = min(budget, NUM_RX_DESC); rx_left > 0; rx_left--, cur_rx++) { unsigned int entry = cur_rx % NUM_RX_DESC; + const void *rx_buf = page_address(tp->Rx_databuff[entry]); struct RxDesc *desc = tp->RxDescArray + entry; u32 status; @@ -5946,9 +5940,8 @@ process_pkt: goto release_descriptor; } - prefetch(tp->Rx_databuff[entry]); - skb_copy_to_linear_data(skb, tp->Rx_databuff[entry], - pkt_size); + prefetch(rx_buf); + skb_copy_to_linear_data(skb, rx_buf, pkt_size); skb->tail += pkt_size; skb->len = pkt_size;