sfc: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Steve Hodgson <shodgson@solarflare.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 10 deletions

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 62e43649466e..91a6b7123539 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -478,7 +478,7 @@ static void efx_rx_packet_gro(struct efx_channel *channel,
                 if (efx->net_dev->features & NETIF_F_RXHASH)
                         skb->rxhash = efx_rx_buf_hash(eh);
 
-                skb_shinfo(skb)->frags[0].page = page;
+                skb_frag_set_page(skb, 0, page);
                 skb_shinfo(skb)->frags[0].page_offset =
                         efx_rx_buf_offset(efx, rx_buf);
                 skb_shinfo(skb)->frags[0].size = rx_buf->len;
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 84eb99e0f8d2..f2467a1b51bd 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -137,8 +137,6 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
         struct pci_dev *pci_dev = efx->pci_dev;
         struct efx_tx_buffer *buffer;
         skb_frag_t *fragment;
-        struct page *page;
-        int page_offset;
         unsigned int len, unmap_len = 0, fill_level, insert_ptr;
         dma_addr_t dma_addr, unmap_addr = 0;
         unsigned int dma_len;
@@ -241,13 +239,11 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
                         break;
                 fragment = &skb_shinfo(skb)->frags[i];
                 len = fragment->size;
-                page = fragment->page;
-                page_offset = fragment->page_offset;
                 i++;
                 /* Map for DMA */
                 unmap_single = false;
-                dma_addr = pci_map_page(pci_dev, page, page_offset, len,
-                                        PCI_DMA_TODEVICE);
+                dma_addr = skb_frag_dma_map(&pci_dev->dev, fragment, 0, len,
+                                            PCI_DMA_TODEVICE);
         }
 
         /* Transfer ownership of the skb to the final buffer */
@@ -929,9 +925,8 @@ static void tso_start(struct tso_state *st, const struct sk_buff *skb)
 static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
                             skb_frag_t *frag)
 {
-        st->unmap_addr = pci_map_page(efx->pci_dev, frag->page,
-                                      frag->page_offset, frag->size,
-                                      PCI_DMA_TODEVICE);
+        st->unmap_addr = skb_frag_dma_map(&efx->pci_dev->dev, frag, 0,
+                                          frag->size, PCI_DMA_TODEVICE);
         if (likely(!pci_dma_mapping_error(efx->pci_dev, st->unmap_addr))) {
                 st->unmap_single = false;
                 st->unmap_len = frag->size;