UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net/fealnx: 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, GFP_KERNEL can be used because it is called from
the probe function (i.e. 'fealnx_init_one()') and no lock is taken.

@@
@@
-    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 2020-07-18 13:03:38 +02:00 committed by David S. Miller
parent e85da794f6
commit 405e30e23c
1 changed files with 53 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
drivers/net/ethernet/fealnx.c
View File

@ -543,7 +543,8 @@ static int fealnx_init_one(struct pci_dev *pdev,
np->mii.phy_id_mask = 0x1f;
np->mii.reg_num_mask = 0x1f;
ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
ring_space = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma,
GFP_KERNEL);
if (!ring_space) {
err = -ENOMEM;
goto err_out_free_dev;
@ -551,7 +552,8 @@ static int fealnx_init_one(struct pci_dev *pdev,
np->rx_ring = ring_space;
np->rx_ring_dma = ring_dma;
ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
ring_space = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma,
GFP_KERNEL);
if (!ring_space) {
err = -ENOMEM;
goto err_out_free_rx;
@ -656,9 +658,11 @@ static int fealnx_init_one(struct pci_dev *pdev,
return 0;
err_out_free_tx:
pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring,
np->tx_ring_dma);
err_out_free_rx:
pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring,
np->rx_ring_dma);
err_out_free_dev:
free_netdev(dev);
err_out_unmap:
@ -676,9 +680,9 @@ static void fealnx_remove_one(struct pci_dev *pdev)
if (dev) {
struct netdev_private *np = netdev_priv(dev);
pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring,
dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring,
np->tx_ring_dma);
pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring,
dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring,
np->rx_ring_dma);
unregister_netdev(dev);
pci_iounmap(pdev, np->mem);
@ -1056,8 +1060,10 @@ static void allocate_rx_buffers(struct net_device *dev)
np->lack_rxbuf = np->lack_rxbuf->next_desc_logical;
np->lack_rxbuf->skbuff = skb;
np->lack_rxbuf->buffer = pci_map_single(np->pci_dev, skb->data,
np->rx_buf_sz, PCI_DMA_FROMDEVICE);
np->lack_rxbuf->buffer = dma_map_single(&np->pci_dev->dev,
skb->data,
np->rx_buf_sz,
DMA_FROM_DEVICE);
np->lack_rxbuf->status = RXOWN;
++np->really_rx_count;
}
@ -1251,8 +1257,10 @@ static void init_ring(struct net_device *dev)
++np->really_rx_count;
np->rx_ring[i].skbuff = skb;
np->rx_ring[i].buffer = pci_map_single(np->pci_dev, skb->data,
np->rx_buf_sz, PCI_DMA_FROMDEVICE);
np->rx_ring[i].buffer = dma_map_single(&np->pci_dev->dev,
skb->data,
np->rx_buf_sz,
DMA_FROM_DEVICE);
np->rx_ring[i].status = RXOWN;
np->rx_ring[i].control |= RXIC;
}
@ -1290,8 +1298,8 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
#define one_buffer
#define BPT 1022
#if defined(one_buffer)
np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
skb->len, PCI_DMA_TODEVICE);
np->cur_tx_copy->buffer = dma_map_single(&np->pci_dev->dev, skb->data,
skb->len, DMA_TO_DEVICE);
np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
@ -1306,8 +1314,9 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
struct fealnx_desc *next;
/* for the first descriptor */
np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
BPT, PCI_DMA_TODEVICE);
np->cur_tx_copy->buffer = dma_map_single(&np->pci_dev->dev,
skb->data, BPT,
DMA_TO_DEVICE);
np->cur_tx_copy->control = TXIC | TXFD | CRCEnable | PADEnable;
np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
np->cur_tx_copy->control |= (BPT << TBSShift); /* buffer size */
@ -1321,8 +1330,9 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
// 89/12/29 add,
if (np->pci_dev->device == 0x891)
np->cur_tx_copy->control |= ETIControl | RetryTxLC;
next->buffer = pci_map_single(ep->pci_dev, skb->data + BPT,
skb->len - BPT, PCI_DMA_TODEVICE);
next->buffer = dma_map_single(&ep->pci_dev->dev,
skb->data + BPT, skb->len - BPT,
DMA_TO_DEVICE);
next->status = TXOWN;
np->cur_tx_copy->status = TXOWN;
@ -1330,8 +1340,9 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
np->cur_tx_copy = next->next_desc_logical;
np->free_tx_count -= 2;
} else {
np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
skb->len, PCI_DMA_TODEVICE);
np->cur_tx_copy->buffer = dma_map_single(&np->pci_dev->dev,
skb->data, skb->len,
DMA_TO_DEVICE);
np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
@ -1371,8 +1382,8 @@ static void reset_tx_descriptors(struct net_device *dev)
for (i = 0; i < TX_RING_SIZE; i++) {
cur = &np->tx_ring[i];
if (cur->skbuff) {
pci_unmap_single(np->pci_dev, cur->buffer,
cur->skbuff->len, PCI_DMA_TODEVICE);
dma_unmap_single(&np->pci_dev->dev, cur->buffer,
cur->skbuff->len, DMA_TO_DEVICE);
dev_kfree_skb_any(cur->skbuff);
cur->skbuff = NULL;
}
@ -1515,8 +1526,10 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
}
/* Free the original skb. */
pci_unmap_single(np->pci_dev, np->cur_tx->buffer,
np->cur_tx->skbuff->len, PCI_DMA_TODEVICE);
dma_unmap_single(&np->pci_dev->dev,
np->cur_tx->buffer,
np->cur_tx->skbuff->len,
DMA_TO_DEVICE);
dev_consume_skb_irq(np->cur_tx->skbuff);
np->cur_tx->skbuff = NULL;
--np->really_tx_count;
@ -1682,10 +1695,10 @@ static int netdev_rx(struct net_device *dev)
if (pkt_len < rx_copybreak &&
(skb = netdev_alloc_skb(dev, pkt_len + 2)) != NULL) {
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(np->pci_dev,
dma_sync_single_for_cpu(&np->pci_dev->dev,
np->cur_rx->buffer,
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
DMA_FROM_DEVICE);
/* Call copy + cksum if available. */
#if ! defined(__alpha__)
@ -1696,15 +1709,15 @@ static int netdev_rx(struct net_device *dev)
skb_put_data(skb, np->cur_rx->skbuff->data,
pkt_len);
#endif
pci_dma_sync_single_for_device(np->pci_dev,
dma_sync_single_for_device(&np->pci_dev->dev,
np->cur_rx->buffer,
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
DMA_FROM_DEVICE);
} else {
pci_unmap_single(np->pci_dev,
dma_unmap_single(&np->pci_dev->dev,
np->cur_rx->buffer,
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
DMA_FROM_DEVICE);
skb_put(skb = np->cur_rx->skbuff, pkt_len);
np->cur_rx->skbuff = NULL;
--np->really_rx_count;
@ -1896,8 +1909,9 @@ static int netdev_close(struct net_device *dev)
np->rx_ring[i].status = 0;
if (skb) {
pci_unmap_single(np->pci_dev, np->rx_ring[i].buffer,
np->rx_buf_sz, PCI_DMA_FROMDEVICE);
dma_unmap_single(&np->pci_dev->dev,
np->rx_ring[i].buffer, np->rx_buf_sz,
DMA_FROM_DEVICE);
dev_kfree_skb(skb);
np->rx_ring[i].skbuff = NULL;
}
@ -1907,8 +1921,9 @@ static int netdev_close(struct net_device *dev)
struct sk_buff *skb = np->tx_ring[i].skbuff;
if (skb) {
pci_unmap_single(np->pci_dev, np->tx_ring[i].buffer,
skb->len, PCI_DMA_TODEVICE);
dma_unmap_single(&np->pci_dev->dev,
np->tx_ring[i].buffer, skb->len,
DMA_TO_DEVICE);
dev_kfree_skb(skb);
np->tx_ring[i].skbuff = NULL;
}