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net: tc35815: switch from 'pci_' to 'dma_' API 

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'tc35815_init_queues()' GFP_ATOMIC must be used
because it can be called from 'tc35815_restart()' where some spinlock are
taken.
The call chain is:
  tc35815_restart
    --> tc35815_clear_queues
      --> tc35815_init_queues

@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christophe JAILLET 2020-09-08 22:27:47 +02:00 committed by David S. Miller
parent f33a7251c8
commit cdd84a93da
1 changed files with 28 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/net/ethernet/toshiba/tc35815.c
View File

@ -454,9 +454,9 @@ static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
skb = netdev_alloc_skb(dev, RX_BUF_SIZE);
if (!skb)
return NULL;
*dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE,
PCI_DMA_FROMDEVICE);
if (pci_dma_mapping_error(hwdev, *dma_handle)) {
*dma_handle = dma_map_single(&hwdev->dev, skb->data, RX_BUF_SIZE,
DMA_FROM_DEVICE);
if (dma_mapping_error(&hwdev->dev, *dma_handle)) {
dev_kfree_skb_any(skb);
return NULL;
}
@ -466,8 +466,8 @@ static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle)
{
pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE,
PCI_DMA_FROMDEVICE);
dma_unmap_single(&hwdev->dev, dma_handle, RX_BUF_SIZE,
DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
}
@ -876,9 +876,9 @@ tc35815_init_queues(struct net_device *dev)
sizeof(struct TxFD) * TX_FD_NUM >
PAGE_SIZE * FD_PAGE_NUM);
lp->fd_buf = pci_alloc_consistent(lp->pci_dev,
PAGE_SIZE * FD_PAGE_NUM,
&lp->fd_buf_dma);
lp->fd_buf = dma_alloc_coherent(&lp->pci_dev->dev,
PAGE_SIZE * FD_PAGE_NUM,
&lp->fd_buf_dma, GFP_ATOMIC);
if (!lp->fd_buf)
return -ENOMEM;
for (i = 0; i < RX_BUF_NUM; i++) {
@ -892,10 +892,9 @@ tc35815_init_queues(struct net_device *dev)
lp->rx_skbs[i].skb_dma);
lp->rx_skbs[i].skb = NULL;
}
pci_free_consistent(lp->pci_dev,
PAGE_SIZE * FD_PAGE_NUM,
lp->fd_buf,
lp->fd_buf_dma);
dma_free_coherent(&lp->pci_dev->dev,
PAGE_SIZE * FD_PAGE_NUM,
lp->fd_buf, lp->fd_buf_dma);
lp->fd_buf = NULL;
return -ENOMEM;
}
@ -990,7 +989,9 @@ tc35815_clear_queues(struct net_device *dev)
BUG_ON(lp->tx_skbs[i].skb != skb);
#endif
if (skb) {
pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
dma_unmap_single(&lp->pci_dev->dev,
lp->tx_skbs[i].skb_dma, skb->len,
DMA_TO_DEVICE);
lp->tx_skbs[i].skb = NULL;
lp->tx_skbs[i].skb_dma = 0;
dev_kfree_skb_any(skb);
@ -1022,7 +1023,9 @@ tc35815_free_queues(struct net_device *dev)
BUG_ON(lp->tx_skbs[i].skb != skb);
#endif
if (skb) {
pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
dma_unmap_single(&lp->pci_dev->dev,
lp->tx_skbs[i].skb_dma,
skb->len, DMA_TO_DEVICE);
dev_kfree_skb(skb);
lp->tx_skbs[i].skb = NULL;
lp->tx_skbs[i].skb_dma = 0;
@ -1044,8 +1047,8 @@ tc35815_free_queues(struct net_device *dev)
}
}
if (lp->fd_buf) {
pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM,
lp->fd_buf, lp->fd_buf_dma);
dma_free_coherent(&lp->pci_dev->dev, PAGE_SIZE * FD_PAGE_NUM,
lp->fd_buf, lp->fd_buf_dma);
lp->fd_buf = NULL;
}
}
@ -1292,7 +1295,10 @@ tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
BUG_ON(lp->tx_skbs[lp->tfd_start].skb);
#endif
lp->tx_skbs[lp->tfd_start].skb = skb;
lp->tx_skbs[lp->tfd_start].skb_dma = pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
lp->tx_skbs[lp->tfd_start].skb_dma = dma_map_single(&lp->pci_dev->dev,
skb->data,
skb->len,
DMA_TO_DEVICE);
/*add to ring */
txfd = &lp->tfd_base[lp->tfd_start];
@ -1500,9 +1506,9 @@ tc35815_rx(struct net_device *dev, int limit)
skb = lp->rx_skbs[cur_bd].skb;
prefetch(skb->data);
lp->rx_skbs[cur_bd].skb = NULL;
pci_unmap_single(lp->pci_dev,
dma_unmap_single(&lp->pci_dev->dev,
lp->rx_skbs[cur_bd].skb_dma,
RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
RX_BUF_SIZE, DMA_FROM_DEVICE);
if (!HAVE_DMA_RXALIGN(lp) && NET_IP_ALIGN != 0)
memmove(skb->data, skb->data - NET_IP_ALIGN,
pkt_len);
@ -1756,7 +1762,9 @@ tc35815_txdone(struct net_device *dev)
#endif
if (skb) {
dev->stats.tx_bytes += skb->len;
pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE);
dma_unmap_single(&lp->pci_dev->dev,
lp->tx_skbs[lp->tfd_end].skb_dma,
skb->len, DMA_TO_DEVICE);
lp->tx_skbs[lp->tfd_end].skb = NULL;
lp->tx_skbs[lp->tfd_end].skb_dma = 0;
dev_kfree_skb_any(skb);