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authorAl Viro <viro@ftp.linux.org.uk>2007-12-22 21:11:18 +0300
committerJeff Garzik <jeff@garzik.org>2007-12-23 06:53:06 +0300
commit78ce8d3d1c75c22ae593ad4ccaffa19ee0e2576d (patch)
tree32cdc1cbe9389ddd5addfccfac5bc9d00197b2f9
parente5a314210087558f21617255754e7687e9a7f81d (diff)
downloadlinux-78ce8d3d1c75c22ae593ad4ccaffa19ee0e2576d.tar.xz
dl2k endianness fixes (.24 fodder?)
* shift before cpu_to_le64(), not after it * writel() converts to l-e itself * misc missing conversions * in set_multicast() hash_table[] is host-endian; we feed it to card via writel() and populate it as host-endian, so we'd better put the first element into it also in host-endian * pci_unmap_single() et.al. expect host-endian, not little-endian Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/net/dl2k.c51
-rw-r--r--drivers/net/dl2k.h6
2 files changed, 30 insertions, 27 deletions
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index 5066beb2e7bc..47cce9cad30f 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -332,7 +332,7 @@ parse_eeprom (struct net_device *dev)
#endif
/* Read eeprom */
for (i = 0; i < 128; i++) {
- ((u16 *) sromdata)[i] = le16_to_cpu (read_eeprom (ioaddr, i));
+ ((__le16 *) sromdata)[i] = cpu_to_le16(read_eeprom (ioaddr, i));
}
#ifdef MEM_MAPPING
ioaddr = dev->base_addr;
@@ -516,7 +516,7 @@ rio_timer (unsigned long data)
PCI_DMA_FROMDEVICE));
}
np->rx_ring[entry].fraginfo |=
- cpu_to_le64 (np->rx_buf_sz) << 48;
+ cpu_to_le64((u64)np->rx_buf_sz << 48);
np->rx_ring[entry].status = 0;
} /* end for */
} /* end if */
@@ -584,11 +584,11 @@ alloc_list (struct net_device *dev)
cpu_to_le64 ( pci_map_single (
np->pdev, skb->data, np->rx_buf_sz,
PCI_DMA_FROMDEVICE));
- np->rx_ring[i].fraginfo |= cpu_to_le64 (np->rx_buf_sz) << 48;
+ np->rx_ring[i].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48);
}
/* Set RFDListPtr */
- writel (cpu_to_le32 (np->rx_ring_dma), dev->base_addr + RFDListPtr0);
+ writel (np->rx_ring_dma, dev->base_addr + RFDListPtr0);
writel (0, dev->base_addr + RFDListPtr1);
return;
@@ -620,15 +620,14 @@ start_xmit (struct sk_buff *skb, struct net_device *dev)
}
#endif
if (np->vlan) {
- tfc_vlan_tag =
- cpu_to_le64 (VLANTagInsert) |
- (cpu_to_le64 (np->vlan) << 32) |
- (cpu_to_le64 (skb->priority) << 45);
+ tfc_vlan_tag = VLANTagInsert |
+ ((u64)np->vlan << 32) |
+ ((u64)skb->priority << 45);
}
txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data,
skb->len,
PCI_DMA_TODEVICE));
- txdesc->fraginfo |= cpu_to_le64 (skb->len) << 48;
+ txdesc->fraginfo |= cpu_to_le64((u64)skb->len << 48);
/* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode
* Work around: Always use 1 descriptor in 10Mbps mode */
@@ -708,6 +707,11 @@ rio_interrupt (int irq, void *dev_instance)
return IRQ_RETVAL(handled);
}
+static inline dma_addr_t desc_to_dma(struct netdev_desc *desc)
+{
+ return le64_to_cpu(desc->fraginfo) & DMA_48BIT_MASK;
+}
+
static void
rio_free_tx (struct net_device *dev, int irq)
{
@@ -725,11 +729,11 @@ rio_free_tx (struct net_device *dev, int irq)
while (entry != np->cur_tx) {
struct sk_buff *skb;
- if (!(np->tx_ring[entry].status & TFDDone))
+ if (!(np->tx_ring[entry].status & cpu_to_le64(TFDDone)))
break;
skb = np->tx_skbuff[entry];
pci_unmap_single (np->pdev,
- np->tx_ring[entry].fraginfo & DMA_48BIT_MASK,
+ desc_to_dma(&np->tx_ring[entry]),
skb->len, PCI_DMA_TODEVICE);
if (irq)
dev_kfree_skb_irq (skb);
@@ -831,13 +835,14 @@ receive_packet (struct net_device *dev)
int pkt_len;
u64 frame_status;
- if (!(desc->status & RFDDone) ||
- !(desc->status & FrameStart) || !(desc->status & FrameEnd))
+ if (!(desc->status & cpu_to_le64(RFDDone)) ||
+ !(desc->status & cpu_to_le64(FrameStart)) ||
+ !(desc->status & cpu_to_le64(FrameEnd)))
break;
/* Chip omits the CRC. */
- pkt_len = le64_to_cpu (desc->status & 0xffff);
- frame_status = le64_to_cpu (desc->status);
+ frame_status = le64_to_cpu(desc->status);
+ pkt_len = frame_status & 0xffff;
if (--cnt < 0)
break;
/* Update rx error statistics, drop packet. */
@@ -857,15 +862,14 @@ receive_packet (struct net_device *dev)
/* Small skbuffs for short packets */
if (pkt_len > copy_thresh) {
pci_unmap_single (np->pdev,
- desc->fraginfo & DMA_48BIT_MASK,
+ desc_to_dma(desc),
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
skb_put (skb = np->rx_skbuff[entry], pkt_len);
np->rx_skbuff[entry] = NULL;
} else if ((skb = dev_alloc_skb (pkt_len + 2)) != NULL) {
pci_dma_sync_single_for_cpu(np->pdev,
- desc->fraginfo &
- DMA_48BIT_MASK,
+ desc_to_dma(desc),
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
/* 16 byte align the IP header */
@@ -875,8 +879,7 @@ receive_packet (struct net_device *dev)
pkt_len);
skb_put (skb, pkt_len);
pci_dma_sync_single_for_device(np->pdev,
- desc->fraginfo &
- DMA_48BIT_MASK,
+ desc_to_dma(desc),
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
}
@@ -919,7 +922,7 @@ receive_packet (struct net_device *dev)
PCI_DMA_FROMDEVICE));
}
np->rx_ring[entry].fraginfo |=
- cpu_to_le64 (np->rx_buf_sz) << 48;
+ cpu_to_le64((u64)np->rx_buf_sz << 48);
np->rx_ring[entry].status = 0;
entry = (entry + 1) % RX_RING_SIZE;
}
@@ -1121,7 +1124,7 @@ set_multicast (struct net_device *dev)
hash_table[0] = hash_table[1] = 0;
/* RxFlowcontrol DA: 01-80-C2-00-00-01. Hash index=0x39 */
- hash_table[1] |= cpu_to_le32(0x02000000);
+ hash_table[1] |= 0x02000000;
if (dev->flags & IFF_PROMISC) {
/* Receive all frames promiscuously. */
rx_mode = ReceiveAllFrames;
@@ -1762,7 +1765,7 @@ rio_close (struct net_device *dev)
skb = np->rx_skbuff[i];
if (skb) {
pci_unmap_single(np->pdev,
- np->rx_ring[i].fraginfo & DMA_48BIT_MASK,
+ desc_to_dma(&np->rx_ring[i]),
skb->len, PCI_DMA_FROMDEVICE);
dev_kfree_skb (skb);
np->rx_skbuff[i] = NULL;
@@ -1772,7 +1775,7 @@ rio_close (struct net_device *dev)
skb = np->tx_skbuff[i];
if (skb) {
pci_unmap_single(np->pdev,
- np->tx_ring[i].fraginfo & DMA_48BIT_MASK,
+ desc_to_dma(&np->tx_ring[i]),
skb->len, PCI_DMA_TODEVICE);
dev_kfree_skb (skb);
np->tx_skbuff[i] = NULL;
diff --git a/drivers/net/dl2k.h b/drivers/net/dl2k.h
index 5b801775f42d..014b77ce96df 100644
--- a/drivers/net/dl2k.h
+++ b/drivers/net/dl2k.h
@@ -633,9 +633,9 @@ struct mii_data {
/* The Rx and Tx buffer descriptors. */
struct netdev_desc {
- u64 next_desc;
- u64 status;
- u64 fraginfo;
+ __le64 next_desc;
+ __le64 status;
+ __le64 fraginfo;
};
#define PRIV_ALIGN 15 /* Required alignment mask */