change ZLRB_RING_SIZE to 4096

diff --git a/sys/arch/sparc/dev/zsvar.h b/sys/arch/sparc/dev/zsvar.h
index 2726db2..b552227 100644 (file)
--- a/sys/arch/sparc/dev/zsvar.h
+++ b/sys/arch/sparc/dev/zsvar.h
@@ -65,8 +65,8 @@
  * When the value is a character + RR1 status, the character is in the
  * upper 8 bits of the RR1 status.
  */
-#define ZLRB_RING_SIZE 256             /* ZS line ring buffer size */
-#define        ZLRB_RING_MASK 255              /* mask for same */
+#define ZLRB_RING_SIZE 4096                    /* ZS line ring buffer size */
+#define        ZLRB_RING_MASK (ZLRB_RING_SIZE-1)       /* mask for same */
 
 /* 0 is reserved (means "no interrupt") */
 #define        ZRING_RINT      1               /* receive data interrupt */