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Diffstat (limited to 'drivers/net/tulip/tulip.h')
-rw-r--r--drivers/net/tulip/tulip.h14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h
index 3f69f53d7768..92c68a22f16b 100644
--- a/drivers/net/tulip/tulip.h
+++ b/drivers/net/tulip/tulip.h
@@ -25,6 +25,7 @@
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/irq.h>
+#include <asm/unaligned.h>
@@ -268,7 +269,12 @@ enum t21143_csr6_bits {
#define RX_RING_SIZE 128
#define MEDIA_MASK 31
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
+/* The receiver on the DC21143 rev 65 can fail to close the last
+ * receive descriptor in certain circumstances (see errata) when
+ * using MWI. This can only occur if the receive buffer ends on
+ * a cache line boundary, so the "+ 4" below ensures it doesn't.
+ */
+#define PKT_BUF_SZ (1536 + 4) /* Size of each temporary Rx buffer. */
#define TULIP_MIN_CACHE_LINE 8 /* in units of 32-bit words */
@@ -299,11 +305,7 @@ enum t21143_csr6_bits {
#define RUN_AT(x) (jiffies + (x))
-#if defined(__i386__) /* AKA get_unaligned() */
-#define get_u16(ptr) (*(u16 *)(ptr))
-#else
-#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
-#endif
+#define get_u16(ptr) get_unaligned_le16((ptr))
struct medialeaf {
u8 type;