From 253096d2c4af92bcd795d46a882a8f764d9f081b Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Thu, 14 Jun 2001 23:51:59 +0000
Subject: dst ring corruption fix; jason

---
 sys/dev/pci/hifn7751.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'sys')

diff --git a/sys/dev/pci/hifn7751.c b/sys/dev/pci/hifn7751.c
index e8bd3575d12..e6e68cc2f42 100644
--- a/sys/dev/pci/hifn7751.c
+++ b/sys/dev/pci/hifn7751.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hifn7751.c,v 1.67 2001/06/14 23:51:18 deraadt Exp $	*/
+/*	$OpenBSD: hifn7751.c,v 1.68 2001/06/14 23:51:58 deraadt Exp $	*/
 
 /*
  * Invertex AEON / Hi/fn 7751 driver
@@ -1529,6 +1529,10 @@ hifn_callback(sc, cmd, macbuf)
 				dma->dstk = 0;
 			dma->dstu--;
 		}
+	} else if (crp->crp_flags & CRYPTO_F_IOV) {
+		hifnstats.hst_obytes += cmd->dst_map->dm_mapsize;
+		dma->dstk = (dma->dstk + cmd->dst_map->dm_nsegs) % HIFN_D_DST_RSIZE;
+		dma->dstu -= cmd->dst_map->dm_nsegs;
 	}
 
 	if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) ==
-- 
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