[PATCH 20/75] cassini: convert to SKB paged frag API.

[PATCH 20/75] cassini: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: Eric Dumazet <eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: David Decotigny <decot-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
---
 drivers/net/cassini.c |   15 +++++++--------
 1 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 646c86b..de5c7590 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2048,8 +2048,8 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc,
 		skb->truesize += hlen - swivel;
 		skb->len      += hlen - swivel;
 
-		get_page(page->buffer);
-		frag->page = page->buffer;
+		__skb_frag_set_page(frag, page->buffer);
+		__skb_frag_ref(frag);
 		frag->page_offset = off;
 		frag->size = hlen - swivel;
 
@@ -2072,8 +2072,8 @@ static int cas_rx_process_pkt(struct cas *cp, struct cas_rx_comp *rxc,
 			skb->len      += hlen;
 			frag++;
 
-			get_page(page->buffer);
-			frag->page = page->buffer;
+			__skb_frag_set_page(frag, page->buffer);
+			__skb_frag_ref(frag);
 			frag->page_offset = 0;
 			frag->size = hlen;
 			RX_USED_ADD(page, hlen + cp->crc_size);
@@ -2830,9 +2830,8 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring,
 		skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag];
 
 		len = fragp->size;
-		mapping = pci_map_page(cp->pdev, fragp->page,
-				       fragp->page_offset, len,
-				       PCI_DMA_TODEVICE);
+		mapping = skb_frag_dma_map(&cp->pdev->dev, fragp, 0, len,
+					   PCI_DMA_TODEVICE);
 
 		tabort = cas_calc_tabort(cp, fragp->page_offset, len);
 		if (unlikely(tabort)) {
@@ -2843,7 +2842,7 @@ static inline int cas_xmit_tx_ringN(struct cas *cp, int ring,
 				      ctrl, 0);
 			entry = TX_DESC_NEXT(ring, entry);
 
-			addr = cas_page_map(fragp->page);
+			addr = cas_page_map(skb_frag_page(fragp));
 			memcpy(tx_tiny_buf(cp, ring, entry),
 			       addr + fragp->page_offset + len - tabort,
 			       tabort);
-- 
1.7.2.5

[PATCH 29/75] greth: convert to SKB paged frag API.

[Ian Campbell]

In order to avoid long lines also use phys_to_virt(page_to_phys(page)) =>
page_address(page) (since the are effectively the same thing for lowmem pages).

Also dump the frag's size instead of the headlen when dumping a frag.

Signed-off-by: Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
Cc: Kristoffer Glembo <kristoffer-FkzTOoA/JUlBDgjK7y7TUQ@public.gmane.org>
Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
---
 drivers/net/greth.c |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/greth.c b/drivers/net/greth.c
index 16ce45c..562a251 100644
--- a/drivers/net/greth.c
+++ b/drivers/net/greth.c
@@ -113,9 +113,8 @@ static void greth_print_tx_packet(struct sk_buff *skb)
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 
 		print_hex_dump(KERN_DEBUG, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
-			       phys_to_virt(page_to_phys(skb_shinfo(skb)->frags[i].page)) +
-			       skb_shinfo(skb)->frags[i].page_offset,
-			       length, true);
+			       skb_frag_address(&skb_shinfo(skb)->frags[i]),
+			       skb_shinfo(skb)->frags[i].size, true);
 	}
 }
 
@@ -528,11 +527,8 @@ greth_start_xmit_gbit(struct sk_buff *skb, struct net_device *dev)
 
 		greth_write_bd(&bdp->stat, status);
 
-		dma_addr = dma_map_page(greth->dev,
-					frag->page,
-					frag->page_offset,
-					frag->size,
-					DMA_TO_DEVICE);
+		dma_addr = skb_frag_dma_map(greth->dev, frag, 0, frag->size,
+					    DMA_TO_DEVICE);
 
 		if (unlikely(dma_mapping_error(greth->dev, dma_addr)))
 			goto frag_map_error;
-- 
1.7.2.5

[PATCH 40/75] pasemi: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
Cc: Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>
Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
---
 drivers/net/pasemi_mac.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 9ec112c..3cd2cd3 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -1505,9 +1505,8 @@ static int pasemi_mac_start_tx(struct sk_buff *skb, struct net_device *dev)
 	for (i = 0; i < nfrags; i++) {
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
-		map[i+1] = pci_map_page(mac->dma_pdev, frag->page,
-					frag->page_offset, frag->size,
-					PCI_DMA_TODEVICE);
+		map[i + 1] = skb_frag_dma_map(&mac->dma_pdev->dev, frag, 0,
+					      frag->size, PCI_DMA_TODEVICE);
 		map_size[i+1] = frag->size;
 		if (pci_dma_mapping_error(mac->dma_pdev, map[i+1])) {
 			nfrags = i;
-- 
1.7.2.5

[PATCH 28/75] gianfar: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Joe Perches <joe@perches.com>
Cc: Sebastian Poehn <sebastian.poehn@belden.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 drivers/net/gianfar.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 2659daa..6586937 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -2140,11 +2140,11 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			if (i == nr_frags - 1)
 				lstatus |= BD_LFLAG(TXBD_LAST | TXBD_INTERRUPT);
 
-			bufaddr = dma_map_page(&priv->ofdev->dev,
-					skb_shinfo(skb)->frags[i].page,
-					skb_shinfo(skb)->frags[i].page_offset,
-					length,
-					DMA_TO_DEVICE);
+			bufaddr = skb_frag_dma_map(&priv->ofdev->dev,
+						   &skb_shinfo(skb)->frags[i],
+						   0,
+						   length,
+						   DMA_TO_DEVICE);
 
 			/* set the TxBD length and buffer pointer */
 			txbdp->bufPtr = bufaddr;
-- 
1.7.2.5

[PATCH 38/75] niu: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 drivers/net/niu.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index ed47585..0191712 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -3291,7 +3291,7 @@ static void niu_rx_skb_append(struct sk_buff *skb, struct page *page,
 	int i = skb_shinfo(skb)->nr_frags;
 	skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
-	frag->page = page;
+	__skb_frag_set_page(frag, page);
 	frag->page_offset = offset;
 	frag->size = size;
 
@@ -6736,7 +6736,7 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb,
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
 		len = frag->size;
-		mapping = np->ops->map_page(np->device, frag->page,
+		mapping = np->ops->map_page(np->device, skb_frag_page(frag),
 					    frag->page_offset, len,
 					    DMA_TO_DEVICE);
 
-- 
1.7.2.5

[PATCH 52/75] sungem: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Joe Perches <joe@perches.com>
Cc: David Decotigny <decot@google.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 drivers/net/sungem.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index ade35dd..39189bf 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -1071,10 +1071,8 @@ static netdev_tx_t gem_start_xmit(struct sk_buff *skb,
 			u64 this_ctrl;
 
 			len = this_frag->size;
-			mapping = pci_map_page(gp->pdev,
-					       this_frag->page,
-					       this_frag->page_offset,
-					       len, PCI_DMA_TODEVICE);
+			mapping = skb_frag_dma_map(&gp->pdev->dev, this_frag,
+						   0, len, PCI_DMA_TODEVICE);
 			this_ctrl = ctrl;
 			if (frag == skb_shinfo(skb)->nr_frags - 1)
 				this_ctrl |= TXDCTRL_EOF;
-- 
1.7.2.5

[PATCH 53/75] sunhme: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: David Decotigny <decot@google.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 drivers/net/sunhme.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 856e05b..0f897a0 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2309,9 +2309,8 @@ static netdev_tx_t happy_meal_start_xmit(struct sk_buff *skb,
 			u32 len, mapping, this_txflags;
 
 			len = this_frag->size;
-			mapping = dma_map_page(hp->dma_dev, this_frag->page,
-					       this_frag->page_offset, len,
-					       DMA_TO_DEVICE);
+			mapping = skb_frag_dma_map(hp->dma_dev, this_frag,
+						   0, len, DMA_TO_DEVICE);
 			this_txflags = tx_flags;
 			if (frag == skb_shinfo(skb)->nr_frags - 1)
 				this_txflags |= TXFLAG_EOP;
-- 
1.7.2.5

[PATCH 55/75] tg3: convert to SKB paged frag API.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Matt Carlson <mcarlson@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 drivers/net/tg3.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index dc3fbf6..68a1a2c 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6280,10 +6280,8 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
 			len = frag->size;
-			mapping = pci_map_page(tp->pdev,
-					       frag->page,
-					       frag->page_offset,
-					       len, PCI_DMA_TODEVICE);
+			mapping = skb_frag_dma_map(&tp->pdev->dev, frag, 0,
+						   len, PCI_DMA_TODEVICE);
 
 			tnapi->tx_buffers[entry].skb = NULL;
 			dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
-- 
1.7.2.5