From: Matt Carlson <mcarlson@broadcom.com>
Date: Thu, 7 Jun 2012 12:56:54 +0000 (+0000)
Subject: tg3: Apply short DMA frag workaround to 5906
X-Git-Tag: firefly_0821_release~7541^2~465
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e5d5ba9f15c541fbc4aef3fb70ae69c4e24ae1f3;p=firefly-linux-kernel-4.4.55.git

tg3: Apply short DMA frag workaround to 5906

commit b7abee6ef888117f92db370620ebf116a38e3f4d upstream.

5906 devices also need the short DMA fragment workaround.  This patch
makes the necessary change.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mike Pagano <mpagano@gentoo.org>
---

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 85931cab2245..10a99e4434db 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -13689,8 +13689,9 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 	 */
 	tg3_flag_set(tp, 4G_DMA_BNDRY_BUG);
 
-	if (tg3_flag(tp, 5755_PLUS))
-		tg3_flag_set(tp, SHORT_DMA_BUG);
+	if (tg3_flag(tp, 5755_PLUS) ||
+		GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
+			tg3_flag_set(tp, SHORT_DMA_BUG);
 	else
 		tg3_flag_set(tp, 40BIT_DMA_LIMIT_BUG);