intel: convert to SKB paged frag API.

(cherry picked from commit 877749bf3f2f7a517ae74cd2c2fa4eed7aa9b51d)
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Cc: Alex Duyck <alexander.h.duyck@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: e1000-devel@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index ef9494b94b94a51381e4c16662236a189eec98a0..a08764b473b910c03b35020960a1e8916430df91 100644 (file)
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -2895,9 +2895,10 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
 
                frag = &skb_shinfo(skb)->frags[f];
                len = frag->size;
-               offset = frag->page_offset;
+               offset = 0;
 
                while (len) {
+                       unsigned long bufend;
                        i++;
                        if (unlikely(i == tx_ring->count))
                                i = 0;
@@ -2911,18 +2912,19 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
                        /* Workaround for potential 82544 hang in PCI-X.
                         * Avoid terminating buffers within evenly-aligned
                         * dwords. */
+                       bufend = (unsigned long)
+                               page_to_phys(skb_frag_page(frag));
+                       bufend += offset + size - 1;
                        if (unlikely(adapter->pcix_82544 &&
-                           !((unsigned long)(page_to_phys(frag->page) + offset
-                                             + size - 1) & 4) &&
-                           size > 4))
+                                    !(bufend & 4) &&
+                                    size > 4))
                                size -= 4;
 
                        buffer_info->length = size;
                        buffer_info->time_stamp = jiffies;
                        buffer_info->mapped_as_page = true;
-                       buffer_info->dma = dma_map_page(&pdev->dev, frag->page,
-                                                       offset, size,
-                                                       DMA_TO_DEVICE);
+                       buffer_info->dma = skb_frag_dma_map(&pdev->dev, frag,
+                                               offset, size, DMA_TO_DEVICE);
                        if (dma_mapping_error(&pdev->dev, buffer_info->dma))
                                goto dma_error;
                        buffer_info->next_to_watch = i;

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 7ed3d56b582107b95b0f5ff147f09bf74615e2f6..30004942e1afd8ab4150c0b431dc7519b1455fa2 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4789,7 +4789,7 @@ static int e1000_tx_map(struct e1000_ring *tx_ring, struct sk_buff *skb,
 
                frag = &skb_shinfo(skb)->frags[f];
                len = frag->size;
-               offset = frag->page_offset;
+               offset = 0;
 
                while (len) {
                        i++;
@@ -4802,9 +4802,8 @@ static int e1000_tx_map(struct e1000_ring *tx_ring, struct sk_buff *skb,
                        buffer_info->length = size;
                        buffer_info->time_stamp = jiffies;
                        buffer_info->next_to_watch = i;
-                       buffer_info->dma = dma_map_page(&pdev->dev, frag->page,
-                                                       offset, size,
-                                                       DMA_TO_DEVICE);
+                       buffer_info->dma = skb_frag_dma_map(&pdev->dev, frag,
+                                               offset, size, DMA_TO_DEVICE);
                        buffer_info->mapped_as_page = true;
                        if (dma_mapping_error(&pdev->dev, buffer_info->dma))
                                goto dma_error;

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e8eb946964da6b8915fbc359da883fcc21236246..cbbe8ba130583959571a5b712c690025ccab5fd6 100644 (file)
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -4164,10 +4164,7 @@ static inline int igb_tx_map(struct igb_ring *tx_ring, struct sk_buff *skb,
                buffer_info->time_stamp = jiffies;
                buffer_info->next_to_watch = i;
                buffer_info->mapped_as_page = true;
-               buffer_info->dma = dma_map_page(dev,
-                                               frag->page,
-                                               frag->page_offset,
-                                               len,
+               buffer_info->dma = skb_frag_dma_map(dev, frag, 0, len,
                                                DMA_TO_DEVICE);
                if (dma_mapping_error(dev, buffer_info->dma))
                        goto dma_error;

diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 40ed066e3ef48177cca4725405c53b78cd6af786..27f68d3d87702d0ed51f73f0c8c0fed88ef90b9a 100644 (file)
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -2061,10 +2061,7 @@ static inline int igbvf_tx_map_adv(struct igbvf_adapter *adapter,
                buffer_info->time_stamp = jiffies;
                buffer_info->next_to_watch = i;
                buffer_info->mapped_as_page = true;
-               buffer_info->dma = dma_map_page(&pdev->dev,
-                                               frag->page,
-                                               frag->page_offset,
-                                               len,
+               buffer_info->dma = skb_frag_dma_map(&pdev->dev, frag, 0, len,
                                                DMA_TO_DEVICE);
                if (dma_mapping_error(&pdev->dev, buffer_info->dma))
                        goto dma_error;

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index bc633b2ef58c4407d8356f9e2f61618ef56c5af1..85306917bb063403088c29c5c220753aa831596f 100644 (file)
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1341,7 +1341,7 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
 
                frag = &skb_shinfo(skb)->frags[f];
                len = frag->size;
-               offset = frag->page_offset;
+               offset = 0;
 
                while (len) {
                        i++;
@@ -1361,8 +1361,8 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
                        buffer_info->time_stamp = jiffies;
                        buffer_info->mapped_as_page = true;
                        buffer_info->dma =
-                               dma_map_page(&pdev->dev, frag->page,
-                                            offset, size, DMA_TO_DEVICE);
+                               skb_frag_dma_map(&pdev->dev, frag, offset, size,
+                                                DMA_TO_DEVICE);
                        if (dma_mapping_error(&pdev->dev, buffer_info->dma))
                                goto dma_error;
                        buffer_info->next_to_watch = 0;

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 63957befc3c5dd4ff71504154f46d978ada57e3a..4fd0fbf463b9aa0b53ad8743f49b9265012fe7bb 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -6618,8 +6618,7 @@ static void ixgbe_tx_map(struct ixgbe_ring *tx_ring,
                offset = 0;
                tx_flags |= IXGBE_TX_FLAGS_MAPPED_AS_PAGE;
 
-               dma = dma_map_page(dev, frag->page, frag->page_offset,
-                                  size, DMA_TO_DEVICE);
+               dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE);
                if (dma_mapping_error(dev, dma))
                        goto dma_error;
 

diff --git a/drivers/net/ixgbevf/ixgbevf_main.c b/drivers/net/ixgbevf/ixgbevf_main.c
index 45b007827024291377e1fa032b9c7c874becc7c5..f73309c7739488d3f4300a459c926fec6baa1d1b 100644 (file)
--- a/drivers/net/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ixgbevf/ixgbevf_main.c
@@ -2919,18 +2919,16 @@ static int ixgbevf_tx_map(struct ixgbevf_adapter *adapter,
 
                frag = &skb_shinfo(skb)->frags[f];
                len = min((unsigned int)frag->size, total);
-               offset = frag->page_offset;
+               offset = 0;
 
                while (len) {
                        tx_buffer_info = &tx_ring->tx_buffer_info[i];
                        size = min(len, (unsigned int)IXGBE_MAX_DATA_PER_TXD);
 
                        tx_buffer_info->length = size;
-                       tx_buffer_info->dma = dma_map_page(&adapter->pdev->dev,
-                                                          frag->page,
-                                                          offset,
-                                                          size,
-                                                          DMA_TO_DEVICE);
+                       tx_buffer_info->dma =
+                               skb_frag_dma_map(&adapter->pdev->dev, frag,
+                                                offset, size, DMA_TO_DEVICE);
                        tx_buffer_info->mapped_as_page = true;
                        if (dma_mapping_error(&pdev->dev, tx_buffer_info->dma))
                                goto dma_error;