summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2020-09-12 17:12:32 +0300
committerDavid S. Miller <davem@davemloft.net>2020-09-13 04:26:29 +0300
commit3f4bc34c9dbe3f1c0069b6be8181628a94429801 (patch)
tree766cb579dbb7a56e70988c11f2ce4611b5135f1e
parentc68d0ceb3cf896c952754e91ebfa8105cda95e01 (diff)
downloadlinux-3f4bc34c9dbe3f1c0069b6be8181628a94429801.tar.xz
net: tehuti: 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 'bdx_fifo_init()' GFP_ATOMIC must be used because it can be called from a '.ndo_set_rx_mode' function. Such functions hold the 'netif_addr_lock' spinlock. .ndo_set_rx_mode (see struct net_device_ops) --> bdx_change_mtu --> bdx_open --> bdx_rx_init --> bdx_tx_init --> bdx_fifo_init @@ @@ - 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>
-rw-r--r--drivers/net/ethernet/tehuti/tehuti.c53
1 files changed, 25 insertions, 28 deletions
diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index e28727297563..a142e4c9fc03 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -153,11 +153,11 @@ bdx_fifo_init(struct bdx_priv *priv, struct fifo *f, int fsz_type,
u16 memsz = FIFO_SIZE * (1 << fsz_type);
memset(f, 0, sizeof(struct fifo));
- /* pci_alloc_consistent gives us 4k-aligned memory */
- f->va = pci_alloc_consistent(priv->pdev,
- memsz + FIFO_EXTRA_SPACE, &f->da);
+ /* dma_alloc_coherent gives us 4k-aligned memory */
+ f->va = dma_alloc_coherent(&priv->pdev->dev, memsz + FIFO_EXTRA_SPACE,
+ &f->da, GFP_ATOMIC);
if (!f->va) {
- pr_err("pci_alloc_consistent failed\n");
+ pr_err("dma_alloc_coherent failed\n");
RET(-ENOMEM);
}
f->reg_CFG0 = reg_CFG0;
@@ -183,8 +183,8 @@ static void bdx_fifo_free(struct bdx_priv *priv, struct fifo *f)
{
ENTER;
if (f->va) {
- pci_free_consistent(priv->pdev,
- f->memsz + FIFO_EXTRA_SPACE, f->va, f->da);
+ dma_free_coherent(&priv->pdev->dev,
+ f->memsz + FIFO_EXTRA_SPACE, f->va, f->da);
f->va = NULL;
}
RET();
@@ -1033,9 +1033,8 @@ static void bdx_rx_free_skbs(struct bdx_priv *priv, struct rxf_fifo *f)
for (i = 0; i < db->nelem; i++) {
dm = bdx_rxdb_addr_elem(db, i);
if (dm->dma) {
- pci_unmap_single(priv->pdev,
- dm->dma, f->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pdev->dev, dm->dma,
+ f->m.pktsz, DMA_FROM_DEVICE);
dev_kfree_skb(dm->skb);
}
}
@@ -1097,9 +1096,8 @@ static void bdx_rx_alloc_skbs(struct bdx_priv *priv, struct rxf_fifo *f)
idx = bdx_rxdb_alloc_elem(db);
dm = bdx_rxdb_addr_elem(db, idx);
- dm->dma = pci_map_single(priv->pdev,
- skb->data, f->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dm->dma = dma_map_single(&priv->pdev->dev, skb->data,
+ f->m.pktsz, DMA_FROM_DEVICE);
dm->skb = skb;
rxfd = (struct rxf_desc *)(f->m.va + f->m.wptr);
rxfd->info = CPU_CHIP_SWAP32(0x10003); /* INFO=1 BC=3 */
@@ -1259,16 +1257,15 @@ static int bdx_rx_receive(struct bdx_priv *priv, struct rxd_fifo *f, int budget)
(skb2 = netdev_alloc_skb(priv->ndev, len + NET_IP_ALIGN))) {
skb_reserve(skb2, NET_IP_ALIGN);
/*skb_put(skb2, len); */
- pci_dma_sync_single_for_cpu(priv->pdev,
- dm->dma, rxf_fifo->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_sync_single_for_cpu(&priv->pdev->dev, dm->dma,
+ rxf_fifo->m.pktsz,
+ DMA_FROM_DEVICE);
memcpy(skb2->data, skb->data, len);
bdx_recycle_skb(priv, rxdd);
skb = skb2;
} else {
- pci_unmap_single(priv->pdev,
- dm->dma, rxf_fifo->m.pktsz,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&priv->pdev->dev, dm->dma,
+ rxf_fifo->m.pktsz, DMA_FROM_DEVICE);
bdx_rxdb_free_elem(db, rxdd->va_lo);
}
@@ -1478,8 +1475,8 @@ bdx_tx_map_skb(struct bdx_priv *priv, struct sk_buff *skb,
int i;
db->wptr->len = skb_headlen(skb);
- db->wptr->addr.dma = pci_map_single(priv->pdev, skb->data,
- db->wptr->len, PCI_DMA_TODEVICE);
+ db->wptr->addr.dma = dma_map_single(&priv->pdev->dev, skb->data,
+ db->wptr->len, DMA_TO_DEVICE);
pbl->len = CPU_CHIP_SWAP32(db->wptr->len);
pbl->pa_lo = CPU_CHIP_SWAP32(L32_64(db->wptr->addr.dma));
pbl->pa_hi = CPU_CHIP_SWAP32(H32_64(db->wptr->addr.dma));
@@ -1716,8 +1713,8 @@ static void bdx_tx_cleanup(struct bdx_priv *priv)
BDX_ASSERT(db->rptr->len == 0);
do {
BDX_ASSERT(db->rptr->addr.dma == 0);
- pci_unmap_page(priv->pdev, db->rptr->addr.dma,
- db->rptr->len, PCI_DMA_TODEVICE);
+ dma_unmap_page(&priv->pdev->dev, db->rptr->addr.dma,
+ db->rptr->len, DMA_TO_DEVICE);
bdx_tx_db_inc_rptr(db);
} while (db->rptr->len > 0);
tx_level -= db->rptr->len; /* '-' koz len is negative */
@@ -1765,8 +1762,8 @@ static void bdx_tx_free_skbs(struct bdx_priv *priv)
ENTER;
while (db->rptr != db->wptr) {
if (likely(db->rptr->len))
- pci_unmap_page(priv->pdev, db->rptr->addr.dma,
- db->rptr->len, PCI_DMA_TODEVICE);
+ dma_unmap_page(&priv->pdev->dev, db->rptr->addr.dma,
+ db->rptr->len, DMA_TO_DEVICE);
else
dev_kfree_skb(db->rptr->addr.skb);
bdx_tx_db_inc_rptr(db);
@@ -1902,12 +1899,12 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err) /* it triggers interrupt, dunno why. */
goto err_pci; /* it's not a problem though */
- if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) &&
- !(err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))) {
+ if (!(err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) &&
+ !(err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)))) {
pci_using_dac = 1;
} else {
- if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) ||
- (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) {
+ if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) ||
+ (err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)))) {
pr_err("No usable DMA configuration, aborting\n");
goto err_dma;
}