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authorDan Williams <dan.j.williams@intel.com>2009-09-09 02:55:21 +0200
committerDan Williams <dan.j.williams@intel.com>2009-09-09 02:55:21 +0200
commitbbb20089a3275a19e475dbc21320c3742e3ca423 (patch)
tree216fdc1cbef450ca688135c5b8969169482d9a48 /drivers/net/tulip/de2104x.c
parentMerge branch 'iop-raid6' into async-tx-next (diff)
parentdmaengine: Move all map_sg/unmap_sg for slave channel to its client (diff)
downloadlinux-bbb20089a3275a19e475dbc21320c3742e3ca423.tar.xz
linux-bbb20089a3275a19e475dbc21320c3742e3ca423.zip
Merge branch 'dmaengine' into async-tx-next
Conflicts: crypto/async_tx/async_xor.c drivers/dma/ioat/dma_v2.h drivers/dma/ioat/pci.c drivers/md/raid5.c
Diffstat (limited to 'drivers/net/tulip/de2104x.c')
-rw-r--r--drivers/net/tulip/de2104x.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index d4c5ecc51f77..81f054dbb88d 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -82,6 +82,13 @@ MODULE_PARM_DESC (rx_copybreak, "de2104x Breakpoint at which Rx packets are copi
NETIF_MSG_RX_ERR | \
NETIF_MSG_TX_ERR)
+/* Descriptor skip length in 32 bit longwords. */
+#ifndef CONFIG_DE2104X_DSL
+#define DSL 0
+#else
+#define DSL CONFIG_DE2104X_DSL
+#endif
+
#define DE_RX_RING_SIZE 64
#define DE_TX_RING_SIZE 64
#define DE_RING_BYTES \
@@ -153,6 +160,7 @@ enum {
CmdReset = (1 << 0),
CacheAlign16 = 0x00008000,
BurstLen4 = 0x00000400,
+ DescSkipLen = (DSL << 2),
/* Rx/TxPoll bits */
NormalTxPoll = (1 << 0),
@@ -246,7 +254,7 @@ static const u32 de_intr_mask =
* Set the programmable burst length to 4 longwords for all:
* DMA errors result without these values. Cache align 16 long.
*/
-static const u32 de_bus_mode = CacheAlign16 | BurstLen4;
+static const u32 de_bus_mode = CacheAlign16 | BurstLen4 | DescSkipLen;
struct de_srom_media_block {
u8 opts;
@@ -266,6 +274,9 @@ struct de_desc {
__le32 opts2;
__le32 addr1;
__le32 addr2;
+#if DSL
+ __le32 skip[DSL];
+#endif
};
struct media_info {
@@ -601,7 +612,7 @@ static int de_start_xmit (struct sk_buff *skb, struct net_device *dev)
if (tx_free == 0) {
netif_stop_queue(dev);
spin_unlock_irq(&de->lock);
- return 1;
+ return NETDEV_TX_BUSY;
}
tx_free--;