[dpdk-stable] patch 'net/ixgbe/base: fix clearing SAN MAC address' has been queued to stable release 16.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 16.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 01/28/17.
So please shout if anyone has objections.

---

Note 16.11 is a LTS release. v16.11.1 is planned to be released
shortly (about 2-3 weeks) after v17.02.

---

Thanks.

	--yliu

---
>From a7e9ec8612596ea02af01d9b4c3dc3d31566154c Mon Sep 17 00:00:00 2001
From: Wei Dai <wei.dai at intel.com>
Date: Wed, 21 Dec 2016 17:47:46 +0800
Subject: [PATCH] net/ixgbe/base: fix clearing SAN MAC address

[ upstream commit 1b417db3d3d1a92ebcef25913a5e268c4cae830a ]

Receive Address Register (RAR) entries, including SAN MAC address,
are cleared when VMDq pool bits are cleared.
Prevent SAN MAC address to be cleared.

Fixes: af75078fece3 ("first public release")

Signed-off-by: Wei Dai <wei.dai at intel.com>
---
 drivers/net/ixgbe/base/ixgbe_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index cca19ef..b2cc6fb 100644
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -3764,7 +3764,8 @@ s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 	}
 
 	/* was that the last pool using this rar? */
-	if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
+	if (mpsar_lo == 0 && mpsar_hi == 0 &&
+	    rar != 0 && rar != hw->mac.san_mac_rar_index)
 		hw->mac.ops.clear_rar(hw, rar);
 done:
 	return IXGBE_SUCCESS;
-- 
1.9.0