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linux-sg2042
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hippi: 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 'rr_init_one()' GFP_KERNEL can be used because
it is a probe function and no spinlock is taken in the between.

When memory is allocated in 'rr_open()' GFP_KERNEL can be used because
it is a '.ndo_open' function (see struct net_device_ops) and no spinlock is
taken in the between.
'.ndo_open' functions are synchronized using the rtnl_lock() semaphore.

@@
@@
-    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 22:08:39 +02:00 committed by David S. Miller
parent 161c4e88b7
commit f33a7251c8
1 changed files with 62 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

117
drivers/net/hippi/rrunner.c
View File

@ -151,7 +151,8 @@ static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out; goto out;
} }
tmpptr = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma); tmpptr = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma,
GFP_KERNEL);
rrpriv->tx_ring = tmpptr; rrpriv->tx_ring = tmpptr;
rrpriv->tx_ring_dma = ring_dma; rrpriv->tx_ring_dma = ring_dma;
@ -160,7 +161,8 @@ static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out; goto out;
} }
tmpptr = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma); tmpptr = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma,
GFP_KERNEL);
rrpriv->rx_ring = tmpptr; rrpriv->rx_ring = tmpptr;
rrpriv->rx_ring_dma = ring_dma; rrpriv->rx_ring_dma = ring_dma;
@ -169,7 +171,8 @@ static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out; goto out;
} }
tmpptr = pci_alloc_consistent(pdev, EVT_RING_SIZE, &ring_dma); tmpptr = dma_alloc_coherent(&pdev->dev, EVT_RING_SIZE, &ring_dma,
GFP_KERNEL);
rrpriv->evt_ring = tmpptr; rrpriv->evt_ring = tmpptr;
rrpriv->evt_ring_dma = ring_dma; rrpriv->evt_ring_dma = ring_dma;
@ -198,14 +201,14 @@ static int rr_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
out: out:
if (rrpriv->evt_ring) if (rrpriv->evt_ring)
pci_free_consistent(pdev, EVT_RING_SIZE, rrpriv->evt_ring, dma_free_coherent(&pdev->dev, EVT_RING_SIZE, rrpriv->evt_ring,
rrpriv->evt_ring_dma); rrpriv->evt_ring_dma);
if (rrpriv->rx_ring) if (rrpriv->rx_ring)
pci_free_consistent(pdev, RX_TOTAL_SIZE, rrpriv->rx_ring, dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, rrpriv->rx_ring,
rrpriv->rx_ring_dma); rrpriv->rx_ring_dma);
if (rrpriv->tx_ring) if (rrpriv->tx_ring)
pci_free_consistent(pdev, TX_TOTAL_SIZE, rrpriv->tx_ring, dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, rrpriv->tx_ring,
rrpriv->tx_ring_dma); rrpriv->tx_ring_dma);
if (rrpriv->regs) if (rrpriv->regs)
pci_iounmap(pdev, rrpriv->regs); pci_iounmap(pdev, rrpriv->regs);
if (pdev) if (pdev)
@ -228,12 +231,12 @@ static void rr_remove_one(struct pci_dev *pdev)
} }
unregister_netdev(dev); unregister_netdev(dev);
pci_free_consistent(pdev, EVT_RING_SIZE, rr->evt_ring, dma_free_coherent(&pdev->dev, EVT_RING_SIZE, rr->evt_ring,
rr->evt_ring_dma); rr->evt_ring_dma);
pci_free_consistent(pdev, RX_TOTAL_SIZE, rr->rx_ring, dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, rr->rx_ring,
rr->rx_ring_dma); rr->rx_ring_dma);
pci_free_consistent(pdev, TX_TOTAL_SIZE, rr->tx_ring, dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, rr->tx_ring,
rr->tx_ring_dma); rr->tx_ring_dma);
pci_iounmap(pdev, rr->regs); pci_iounmap(pdev, rr->regs);
pci_release_regions(pdev); pci_release_regions(pdev);
pci_disable_device(pdev); pci_disable_device(pdev);
@ -648,8 +651,8 @@ static int rr_init1(struct net_device *dev)
goto error; goto error;
} }
rrpriv->rx_skbuff[i] = skb; rrpriv->rx_skbuff[i] = skb;
addr = pci_map_single(rrpriv->pci_dev, skb->data, addr = dma_map_single(&rrpriv->pci_dev->dev, skb->data,
dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE); dev->mtu + HIPPI_HLEN, DMA_FROM_DEVICE);
/* /*
* Sanity test to see if we conflict with the DMA * Sanity test to see if we conflict with the DMA
* limitations of the Roadrunner. * limitations of the Roadrunner.
@ -699,10 +702,10 @@ static int rr_init1(struct net_device *dev)
struct sk_buff *skb = rrpriv->rx_skbuff[i]; struct sk_buff *skb = rrpriv->rx_skbuff[i];
if (skb) { if (skb) {
pci_unmap_single(rrpriv->pci_dev, dma_unmap_single(&rrpriv->pci_dev->dev,
rrpriv->rx_ring[i].addr.addrlo, rrpriv->rx_ring[i].addr.addrlo,
dev->mtu + HIPPI_HLEN, dev->mtu + HIPPI_HLEN,
PCI_DMA_FROMDEVICE); DMA_FROM_DEVICE);
rrpriv->rx_ring[i].size = 0; rrpriv->rx_ring[i].size = 0;
set_rraddr(&rrpriv->rx_ring[i].addr, 0); set_rraddr(&rrpriv->rx_ring[i].addr, 0);
dev_kfree_skb(skb); dev_kfree_skb(skb);
@ -953,18 +956,18 @@ static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
dev->stats.rx_dropped++; dev->stats.rx_dropped++;
goto defer; goto defer;
} else { } else {
pci_dma_sync_single_for_cpu(rrpriv->pci_dev, dma_sync_single_for_cpu(&rrpriv->pci_dev->dev,
desc->addr.addrlo, desc->addr.addrlo,
pkt_len, pkt_len,
PCI_DMA_FROMDEVICE); DMA_FROM_DEVICE);
skb_put_data(skb, rx_skb->data, skb_put_data(skb, rx_skb->data,
pkt_len); pkt_len);
pci_dma_sync_single_for_device(rrpriv->pci_dev, dma_sync_single_for_device(&rrpriv->pci_dev->dev,
desc->addr.addrlo, desc->addr.addrlo,
pkt_len, pkt_len,
PCI_DMA_FROMDEVICE); DMA_FROM_DEVICE);
} }
}else{ }else{
struct sk_buff *newskb; struct sk_buff *newskb;
@ -974,16 +977,17 @@ static void rx_int(struct net_device *dev, u32 rxlimit, u32 index)
if (newskb){ if (newskb){
dma_addr_t addr; dma_addr_t addr;
pci_unmap_single(rrpriv->pci_dev, dma_unmap_single(&rrpriv->pci_dev->dev,
desc->addr.addrlo, dev->mtu + desc->addr.addrlo,
HIPPI_HLEN, PCI_DMA_FROMDEVICE); dev->mtu + HIPPI_HLEN,
DMA_FROM_DEVICE);
skb = rx_skb; skb = rx_skb;
skb_put(skb, pkt_len); skb_put(skb, pkt_len);
rrpriv->rx_skbuff[index] = newskb; rrpriv->rx_skbuff[index] = newskb;
addr = pci_map_single(rrpriv->pci_dev, addr = dma_map_single(&rrpriv->pci_dev->dev,
newskb->data, newskb->data,
dev->mtu + HIPPI_HLEN, dev->mtu + HIPPI_HLEN,
PCI_DMA_FROMDEVICE); DMA_FROM_DEVICE);
set_rraddr(&desc->addr, addr); set_rraddr(&desc->addr, addr);
} else { } else {
printk("%s: Out of memory, deferring " printk("%s: Out of memory, deferring "
@ -1068,9 +1072,9 @@ static irqreturn_t rr_interrupt(int irq, void *dev_id)
dev->stats.tx_packets++; dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len; dev->stats.tx_bytes += skb->len;
pci_unmap_single(rrpriv->pci_dev, dma_unmap_single(&rrpriv->pci_dev->dev,
desc->addr.addrlo, skb->len, desc->addr.addrlo, skb->len,
PCI_DMA_TODEVICE); DMA_TO_DEVICE);
dev_kfree_skb_irq(skb); dev_kfree_skb_irq(skb);
rrpriv->tx_skbuff[txcon] = NULL; rrpriv->tx_skbuff[txcon] = NULL;
@ -1110,8 +1114,9 @@ static inline void rr_raz_tx(struct rr_private *rrpriv,
if (skb) { if (skb) {
struct tx_desc *desc = &(rrpriv->tx_ring[i]); struct tx_desc *desc = &(rrpriv->tx_ring[i]);
pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo, dma_unmap_single(&rrpriv->pci_dev->dev,
skb->len, PCI_DMA_TODEVICE); desc->addr.addrlo, skb->len,
DMA_TO_DEVICE);
desc->size = 0; desc->size = 0;
set_rraddr(&desc->addr, 0); set_rraddr(&desc->addr, 0);
dev_kfree_skb(skb); dev_kfree_skb(skb);
@ -1132,8 +1137,10 @@ static inline void rr_raz_rx(struct rr_private *rrpriv,
if (skb) { if (skb) {
struct rx_desc *desc = &(rrpriv->rx_ring[i]); struct rx_desc *desc = &(rrpriv->rx_ring[i]);
pci_unmap_single(rrpriv->pci_dev, desc->addr.addrlo, dma_unmap_single(&rrpriv->pci_dev->dev,
dev->mtu + HIPPI_HLEN, PCI_DMA_FROMDEVICE); desc->addr.addrlo,
dev->mtu + HIPPI_HLEN,
DMA_FROM_DEVICE);
desc->size = 0; desc->size = 0;
set_rraddr(&desc->addr, 0); set_rraddr(&desc->addr, 0);
dev_kfree_skb(skb); dev_kfree_skb(skb);
@ -1188,17 +1195,17 @@ static int rr_open(struct net_device *dev)
goto error; goto error;
} }
rrpriv->rx_ctrl = pci_alloc_consistent(pdev, rrpriv->rx_ctrl = dma_alloc_coherent(&pdev->dev,
256 * sizeof(struct ring_ctrl), 256 * sizeof(struct ring_ctrl),
&dma_addr); &dma_addr, GFP_KERNEL);
if (!rrpriv->rx_ctrl) { if (!rrpriv->rx_ctrl) {
ecode = -ENOMEM; ecode = -ENOMEM;
goto error; goto error;
} }
rrpriv->rx_ctrl_dma = dma_addr; rrpriv->rx_ctrl_dma = dma_addr;
rrpriv->info = pci_alloc_consistent(pdev, sizeof(struct rr_info), rrpriv->info = dma_alloc_coherent(&pdev->dev, sizeof(struct rr_info),
&dma_addr); &dma_addr, GFP_KERNEL);
if (!rrpriv->info) { if (!rrpriv->info) {
ecode = -ENOMEM; ecode = -ENOMEM;
goto error; goto error;
@ -1237,13 +1244,13 @@ static int rr_open(struct net_device *dev)
spin_unlock_irqrestore(&rrpriv->lock, flags); spin_unlock_irqrestore(&rrpriv->lock, flags);
if (rrpriv->info) { if (rrpriv->info) {
pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info, dma_free_coherent(&pdev->dev, sizeof(struct rr_info),
rrpriv->info_dma); rrpriv->info, rrpriv->info_dma);
rrpriv->info = NULL; rrpriv->info = NULL;
} }
if (rrpriv->rx_ctrl) { if (rrpriv->rx_ctrl) {
pci_free_consistent(pdev, 256 * sizeof(struct ring_ctrl), dma_free_coherent(&pdev->dev, 256 * sizeof(struct ring_ctrl),
rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma); rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
rrpriv->rx_ctrl = NULL; rrpriv->rx_ctrl = NULL;
} }
@ -1365,12 +1372,12 @@ static int rr_close(struct net_device *dev)
rr_raz_tx(rrpriv, dev); rr_raz_tx(rrpriv, dev);
rr_raz_rx(rrpriv, dev); rr_raz_rx(rrpriv, dev);
pci_free_consistent(pdev, 256 * sizeof(struct ring_ctrl), dma_free_coherent(&pdev->dev, 256 * sizeof(struct ring_ctrl),
rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma); rrpriv->rx_ctrl, rrpriv->rx_ctrl_dma);
rrpriv->rx_ctrl = NULL; rrpriv->rx_ctrl = NULL;
pci_free_consistent(pdev, sizeof(struct rr_info), rrpriv->info, dma_free_coherent(&pdev->dev, sizeof(struct rr_info), rrpriv->info,
rrpriv->info_dma); rrpriv->info_dma);
rrpriv->info = NULL; rrpriv->info = NULL;
spin_unlock_irqrestore(&rrpriv->lock, flags); spin_unlock_irqrestore(&rrpriv->lock, flags);
@ -1430,8 +1437,8 @@ static netdev_tx_t rr_start_xmit(struct sk_buff *skb,
index = txctrl->pi; index = txctrl->pi;
rrpriv->tx_skbuff[index] = skb; rrpriv->tx_skbuff[index] = skb;
set_rraddr(&rrpriv->tx_ring[index].addr, pci_map_single( set_rraddr(&rrpriv->tx_ring[index].addr,
rrpriv->pci_dev, skb->data, len + 8, PCI_DMA_TODEVICE)); dma_map_single(&rrpriv->pci_dev->dev, skb->data, len + 8, DMA_TO_DEVICE));
rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */ rrpriv->tx_ring[index].size = len + 8; /* include IFIELD */
rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END; rrpriv->tx_ring[index].mode = PACKET_START | PACKET_END;
txctrl->pi = (index + 1) % TX_RING_ENTRIES; txctrl->pi = (index + 1) % TX_RING_ENTRIES;