From a441dee9030c209d23c2884e7a914824cbedb0f8 Mon Sep 17 00:00:00 2001 From: mjacob Date: Sun, 23 Jan 2000 03:18:14 +0000 Subject: add PREVIOUS index macro for transmit side --- sys/pci/if_wxvar.h | 1 + 1 file changed, 1 insertion(+) (limited to 'sys/pci') diff --git a/sys/pci/if_wxvar.h b/sys/pci/if_wxvar.h index dd9179f..2779e61 100644 --- a/sys/pci/if_wxvar.h +++ b/sys/pci/if_wxvar.h @@ -313,6 +313,7 @@ typedef struct wx_softc { */ #define WX_MAX_TDESC 256 /* number of transmit descriptors */ #define T_NXT_IDX(x) ((x + 1) & (WX_MAX_TDESC - 1)) +#define T_PREV_IDX(x) ((x - 1) & (WX_MAX_TDESC - 1)) #define WX_MAX_RDESC 64 /* number of receive descriptors */ #ifdef PADDED_CELL #define RXINCR 2 -- cgit v1.1