[dpdk-stable] patch 'net/bonding: fix bonding in 8023ad mode' has been queued to LTS release 17.11.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 17.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 01/26/18. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 577e1ac277f053df2e6c2608f84226c3c88c1e23 Mon Sep 17 00:00:00 2001
From: Jacek Piasecki <jacekx.piasecki at intel.com>
Date: Tue, 8 Aug 2017 14:56:43 +0200
Subject: [PATCH] net/bonding: fix bonding in 8023ad mode

[ upstream commit 1184582b5f80b2915d45e4015fb4e762954119e3 ]

This patch blocks possibility to set master bonding by
rte_eth_bond_mode_set() in 802.3ad mode, as the API
doesn't prevent this.

Fixes: 6d72657ce379 ("net/bonding: add other aggregator modes")

Signed-off-by: Jacek Piasecki <jacekx.piasecki at intel.com>
Reviewed-by: Radu Nicolau <radu.nicolau at intel.com>
---
 drivers/net/bonding/rte_eth_bond_api.c     | 29 ++++++++++++++++++++++++++++-
 drivers/net/bonding/rte_eth_bond_private.h |  3 +++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 980e636..703bb39 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -63,6 +63,25 @@ valid_bonded_port_id(uint16_t port_id)
 }
 
 int
+check_for_master_bonded_ethdev(const struct rte_eth_dev *eth_dev)
+{
+	int i;
+	struct bond_dev_private *internals;
+
+	if (check_for_bonded_ethdev(eth_dev) != 0)
+		return 0;
+
+	internals = eth_dev->data->dev_private;
+
+	/* Check if any of slave devices is a bonded device */
+	for (i = 0; i < internals->slave_count; i++)
+		if (valid_bonded_port_id(internals->slaves[i].port_id) == 0)
+			return 1;
+
+	return 0;
+}
+
+int
 valid_slave_port_id(uint16_t port_id, uint8_t mode)
 {
 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -1);
@@ -496,10 +515,18 @@ rte_eth_bond_slave_remove(uint16_t bonded_port_id, uint16_t slave_port_id)
 int
 rte_eth_bond_mode_set(uint16_t bonded_port_id, uint8_t mode)
 {
+	struct rte_eth_dev *bonded_eth_dev;
+
 	if (valid_bonded_port_id(bonded_port_id) != 0)
 		return -1;
 
-	return bond_ethdev_mode_set(&rte_eth_devices[bonded_port_id], mode);
+	bonded_eth_dev = &rte_eth_devices[bonded_port_id];
+
+	if (check_for_master_bonded_ethdev(bonded_eth_dev) != 0 &&
+			mode == BONDING_MODE_8023AD)
+		return -1;
+
+	return bond_ethdev_mode_set(bonded_eth_dev, mode);
 }
 
 int
diff --git a/drivers/net/bonding/rte_eth_bond_private.h b/drivers/net/bonding/rte_eth_bond_private.h
index 1392da9..a5cfa6a 100644
--- a/drivers/net/bonding/rte_eth_bond_private.h
+++ b/drivers/net/bonding/rte_eth_bond_private.h
@@ -183,6 +183,9 @@ struct bond_dev_private {
 extern const struct eth_dev_ops default_dev_ops;
 
 int
+check_for_master_bonded_ethdev(const struct rte_eth_dev *eth_dev);
+
+int
 check_for_bonded_ethdev(const struct rte_eth_dev *eth_dev);
 
 /* Search given slave array to find position of given id.
-- 
2.7.4