[PATCH 4/4] net: bonding: add slave device addresses in mode alb

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From: Jiri Pirko
Date: Monday, April 13, 2009 - 1:46 am

When in mode alb, add all device addresses which belong to an enslaved slave
device to the bond device. This ensures that all mac addresses will be
treated as local and bonding in this mode will work fine in bridge.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
---
 drivers/net/bonding/bond_main.c |   30 +++++++++++++++++++++++++++++-
 1 files changed, 29 insertions(+), 1 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 99610f3..47795c7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1385,6 +1385,11 @@ static void bond_setup_by_slave(struct net_device *bond_dev,
 	bond->setup_by_slave = 1;
 }
 
+static inline int should_copy_dev_addrs(struct bonding *bond)
+{
+	return bond->params.mode == BOND_MODE_ALB ? 1 : 0;
+}
+
 /* enslave device <slave> to bond device <master> */
 int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 {
@@ -1510,6 +1515,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	 */
 	new_slave->original_flags = slave_dev->flags;
 
+	if (should_copy_dev_addrs(bond)) {
+		res = dev_addr_add_multiple(bond_dev, slave_dev);
+		if (res)
+			goto err_free;
+		dev_mac_address_changed(bond_dev);
+	}
+
 	/*
 	 * Save slave's original ("permanent") mac address for modes
 	 * that need it, and for restoring it upon release, and then
@@ -1527,7 +1539,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		res = dev_set_mac_address(slave_dev, &addr);
 		if (res) {
 			pr_debug("Error %d calling set_mac_address\n", res);
-			goto err_free;
+			goto err_remove_dev_addrs;
 		}
 	}
 
@@ -1769,6 +1781,12 @@ err_restore_mac:
 		dev_set_mac_address(slave_dev, &addr);
 	}
 
+err_remove_dev_addrs:
+	if (should_copy_dev_addrs(bond)) {
+		dev_addr_del_multiple(bond_dev, slave_dev);
+		dev_mac_address_changed(bond_dev);
+	}
+
 err_free:
 	kfree(new_slave);
 
@@ -1954,6 +1972,11 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 	/* close slave before restoring its mac address */
 	dev_close(slave_dev);
 
+	if (should_copy_dev_addrs(bond)) {
+		dev_addr_del_multiple(bond_dev, slave_dev);
+		dev_mac_address_changed(bond_dev);
+	}
+
 	if (bond->params.fail_over_mac != BOND_FOM_ACTIVE) {
 		/* restore original ("permanent") mac address */
 		memcpy(addr.sa_data, slave->perm_hwaddr, ETH_ALEN);
@@ -2090,6 +2113,9 @@ static int bond_release_all(struct net_device *bond_dev)
 		/* close slave before restoring its mac address */
 		dev_close(slave_dev);
 
+		if (should_copy_dev_addrs(bond))
+			dev_addr_del_multiple(bond_dev, slave_dev);
+
 		if (!bond->params.fail_over_mac) {
 			/* restore original ("permanent") mac address*/
 			memcpy(addr.sa_data, slave->perm_hwaddr, ETH_ALEN);
@@ -2106,6 +2132,8 @@ static int bond_release_all(struct net_device *bond_dev)
 		write_lock_bh(&bond->lock);
 	}
 
+	dev_mac_address_changed(bond_dev);
+
 	/* zero the mac address of the master so it will be
 	 * set by the application to the mac address of the
 	 * first slave
-- 
1.6.0.6

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Messages in current thread:
Re: [PATCH] bonding: allow bond in mode balance-alb to wor ..., Stephen Hemminger, (Fri Mar 13, 10:39 pm)
Re: [PATCH] bonding: allow bond in mode balance-alb to wor ..., Stephen Hemminger, (Sun Mar 15, 4:12 pm)
[PATCH 1/4] net: introduce dev_mac_address_changed, Jiri Pirko, (Mon Apr 13, 1:38 am)
[PATCH 4/4] net: bonding: add slave device addresses in mo ..., Jiri Pirko, (Mon Apr 13, 1:46 am)
Re: [PATCH 2/4] net: introduce a list of device addresses ..., Stephen Hemminger, (Mon Apr 13, 7:49 am)
Re: [PATCH 3/4] net: bridge: use device address list inste ..., Stephen Hemminger, (Mon Apr 13, 7:54 am)
Re: [PATCH 4/4] net: bonding: add slave device addresses i ..., Stephen Hemminger, (Mon Apr 13, 7:56 am)
Re: [PATCH 1/4] net: introduce dev_mac_address_changed, Stephen Hemminger, (Mon Apr 13, 7:58 am)
Re: [PATCH 1/3] net: introduce a list of device addresses ..., Stephen Hemminger, (Fri Apr 17, 8:33 am)
Re: [Bonding-devel] [PATCH 1/3] net: introduce a list of d ..., Stephen Hemminger, (Thu Apr 23, 8:58 am)
Re: [PATCH net-next] net: bridge: use device address list ..., Stephen Hemminger, (Wed May 6, 12:26 pm)