[dpdk-stable] patch 'net/ixgbe: fix VF reset to apply to correct VF' has been queued to stable release 16.07.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 16.07.1

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

Thanks.

	--yliu

---
>From 54ed05dd22da4dc33996c0177c3b27aba40ef58c Mon Sep 17 00:00:00 2001
From: Alex Zelezniak <alexz at att.com>
Date: Mon, 29 Aug 2016 20:23:29 -0500
Subject: [PATCH] net/ixgbe: fix VF reset to apply to correct VF

[ upstream commit a9a68b61ad49770091a835d6ed742cf836ab86e3 ]

In SR-IOV configuration, queues 0 - nb_rx_queues belong to VF0,
which means that with the current implementation when a reset mbox
message comes from any VF, it affects the settings of VF0.

Fix this by using PF queue index to update the correct queue.

Fixes: dbb0b8737f64 ("ixgbe: add vlan offload support")

Signed-off-by: Alex Zelezniak <alexz at att.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index d478a15..e102930 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1768,6 +1768,7 @@ ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev)
 		IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	uint32_t ctrl;
 	uint16_t i;
+	struct ixgbe_rx_queue *rxq;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -1778,9 +1779,10 @@ ixgbe_vlan_hw_strip_disable_all(struct rte_eth_dev *dev)
 	} else {
 		/* Other 10G NIC, the VLAN strip can be setup per queue in RXDCTL */
 		for (i = 0; i < dev->data->nb_rx_queues; i++) {
-			ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
+			rxq = dev->data->rx_queues[i];
+			ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
 			ctrl &= ~IXGBE_RXDCTL_VME;
-			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), ctrl);
+			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), ctrl);
 
 			/* record those setting for HW strip per queue */
 			ixgbe_vlan_hw_strip_bitmap_set(dev, i, 0);
@@ -1795,6 +1797,7 @@ ixgbe_vlan_hw_strip_enable_all(struct rte_eth_dev *dev)
 		IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	uint32_t ctrl;
 	uint16_t i;
+	struct ixgbe_rx_queue *rxq;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -1805,9 +1808,10 @@ ixgbe_vlan_hw_strip_enable_all(struct rte_eth_dev *dev)
 	} else {
 		/* Other 10G NIC, the VLAN strip can be setup per queue in RXDCTL */
 		for (i = 0; i < dev->data->nb_rx_queues; i++) {
-			ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
+			rxq = dev->data->rx_queues[i];
+			ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
 			ctrl |= IXGBE_RXDCTL_VME;
-			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), ctrl);
+			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), ctrl);
 
 			/* record those setting for HW strip per queue */
 			ixgbe_vlan_hw_strip_bitmap_set(dev, i, 1);
-- 
1.9.0