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authorVeaceslav Falico <vfalico@redhat.com>2014-02-18 07:48:37 +0100
committerDavid S. Miller <davem@davemloft.net>2014-02-18 16:47:14 -0500
commit13ac34a8866e31b31db6237c73aa558aff84d765 (patch)
tree2967b6c7eb63b168b3b33c4c57bcbcd5f709e70c
parent3b7d636b50fb38e4e0f1113ba7bff8dcd19d140f (diff)
downloadlinux-13ac34a8866e31b31db6237c73aa558aff84d765.tar.bz2
bonding: permit using arp_validate with non-ab modes
Currently it's disabled because it's sometimes hard, in typical configs, to make it work - because of the nature how the loadbalance modes work - as it's hard to deliver valid arp replies to correct slaves by the switch. However we still can use arp_validation in loadbalance with several other configs, per example with arp_validate == 2 for backup with one broadcast domain, without the switch(es) doing any balancing - this way we'd be (a bit more) sure that the slave is up. So, enable it to let users decide which one works/suits them best. Also correct the mode limitation from BOND_OPT_ARP_VALIDATE. CC: Nikolay Aleksandrov <nikolay@redhat.com> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Acked-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--Documentation/networking/bonding.txt6
-rw-r--r--drivers/net/bonding/bond_main.c4
-rw-r--r--drivers/net/bonding/bond_options.c3
3 files changed, 5 insertions, 8 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 5cdb22971d19..96b4ad89cf25 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -270,9 +270,9 @@ arp_ip_target
arp_validate
Specifies whether or not ARP probes and replies should be
- validated in the active-backup mode. This causes the ARP
- monitor to examine the incoming ARP requests and replies, and
- only consider a slave to be up if it is receiving the
+ validated in any mode that supports arp monitoring. This causes
+ the ARP monitor to examine the incoming ARP requests and replies,
+ and only consider a slave to be up if it is receiving the
appropriate ARP traffic.
Possible values are:
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3c50bece69ff..91c024862c80 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4183,10 +4183,6 @@ static int bond_check_params(struct bond_params *params)
}
if (arp_validate) {
- if (bond_mode != BOND_MODE_ACTIVEBACKUP) {
- pr_err("arp_validate only supported in active-backup mode\n");
- return -EINVAL;
- }
if (!arp_interval) {
pr_err("arp_validate requires arp_interval\n");
return -EINVAL;
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index f3eb44d2e231..4d58645b117d 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -151,7 +151,8 @@ static struct bond_option bond_opts[] = {
.id = BOND_OPT_ARP_VALIDATE,
.name = "arp_validate",
.desc = "validate src/dst of ARP probes",
- .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP)),
+ .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
+ BIT(BOND_MODE_ALB),
.values = bond_arp_validate_tbl,
.set = bond_option_arp_validate_set
},