[dpdk-stable] patch 'net/i40e: fix VSI MAC filter on primary address change' has been queued to LTS release 16.11.5

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 01/28/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From 3063263faae6f63a7c086911b32bdfa431bce6c2 Mon Sep 17 00:00:00 2001
From: Olivier Matz <olivier.matz at 6wind.com>
Date: Wed, 3 Jan 2018 15:29:23 +0100
Subject: [PATCH] net/i40e: fix VSI MAC filter on primary address change

[ upstream commit 047779508874994fbd905dcc2eeacf78b815e4f4 ]

When primary address mac is changed, the mac filters were not updated in
the VSI with the new mac addr and incoming packets with this destination
address are dropped by the hardware filters.

This patch removes the VSI mac filter for the previous mac address and
adds a new one for new mac address.

Fixes: e18e01e92c29 ("i40e: support default MAC address setting")

Signed-off-by: Laurent Hardy <laurent.hardy at 6wind.com>
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
Acked-by: Beilei Xing <beilei.xing at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 69a0a21c0..eed74b147 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -9833,12 +9833,41 @@ static void i40e_set_default_mac_addr(struct rte_eth_dev *dev,
 				      struct ether_addr *mac_addr)
 {
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	struct i40e_vsi *vsi = pf->main_vsi;
+	struct i40e_mac_filter_info mac_filter;
+	struct i40e_mac_filter *f;
+	int ret;
 
 	if (!is_valid_assigned_ether_addr(mac_addr)) {
 		PMD_DRV_LOG(ERR, "Tried to set invalid MAC address.");
 		return;
 	}
 
+	TAILQ_FOREACH(f, &vsi->mac_list, next) {
+		if (is_same_ether_addr(&pf->dev_addr, &f->mac_info.mac_addr))
+			break;
+	}
+
+	if (f == NULL) {
+		PMD_DRV_LOG(ERR, "Failed to find filter for default mac");
+		return;
+	}
+
+	mac_filter = f->mac_info;
+	ret = i40e_vsi_delete_mac(vsi, &mac_filter.mac_addr);
+	if (ret != I40E_SUCCESS) {
+		PMD_DRV_LOG(ERR, "Failed to delete mac filter");
+		return;
+	}
+	memcpy(&mac_filter.mac_addr, mac_addr, ETH_ADDR_LEN);
+	ret = i40e_vsi_add_mac(vsi, &mac_filter);
+	if (ret != I40E_SUCCESS) {
+		PMD_DRV_LOG(ERR, "Failed to add mac filter");
+		return;
+	}
+	memcpy(&pf->dev_addr, mac_addr, ETH_ADDR_LEN);
+
 	/* Flags: 0x3 updates port address */
 	i40e_aq_mac_address_write(hw, 0x3, mac_addr->addr_bytes, NULL);
 }
-- 
2.14.2