There's a new transmit hash policy being added to the bonding driver that
is a simple XOR of vlan ID and source MAC, xmit_hash_policy vlan+mac. This
trivial patch makes it configurable and queryable via iproute2.
$ sudo modprobe bonding mode=2 max_bonds=1 xmit_hash_policy=0
$ sudo ip link set bond0 type bond xmit_hash_policy vlan+mac
$ ip -d link show bond0
11: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN mode
DEFAULT group default qlen 1000
link/ether ce:85:5e:24:ce:90 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68
maxmtu 65535
bond mode balance-xor miimon 0 updelay 0 downdelay 0 peer_notify_delay 0
use_carrier 1 arp_interval 0 arp_validate none arp_all_targets any
primary_reselect always fail_over_mac none xmit_hash_policy vlan+mac
resend_igmp 1 num_grat_arp 1 all_slaves_active 0 min_links 0 lp_interval 1
packets_per_slave 1 lacp_rate slow ad_select stable tlb_dynamic_lb 1
addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs
65535
$ grep Hash /proc/net/bonding/bond0
Transmit Hash Policy: vlan+mac (5)
$ sudo ip link add test type bond help
Usage: ... bond [ mode BONDMODE ] [ active_slave SLAVE_DEV ]
[ clear_active_slave ] [ miimon MIIMON ]
[ updelay UPDELAY ] [ downdelay DOWNDELAY ]
[ peer_notify_delay DELAY ]
[ use_carrier USE_CARRIER ]
[ arp_interval ARP_INTERVAL ]
[ arp_validate ARP_VALIDATE ]
[ arp_all_targets ARP_ALL_TARGETS ]
[ arp_ip_target [ ARP_IP_TARGET, ... ] ]
[ primary SLAVE_DEV ]
[ primary_reselect PRIMARY_RESELECT ]
[ fail_over_mac FAIL_OVER_MAC ]
[ xmit_hash_policy XMIT_HASH_POLICY ]
[ resend_igmp RESEND_IGMP ]
[ num_grat_arp|num_unsol_na NUM_GRAT_ARP|NUM_UNSOL_NA ]
[ all_slaves_active ALL_SLAVES_ACTIVE ]
[ min_links MIN_LINKS ]
[ lp_interval LP_INTERVAL ]
[ packets_per_slave PACKETS_PER_SLAVE ]
[ tlb_dynamic_lb TLB_DYNAMIC_LB ]
[ lacp_rate LACP_RATE ]
[ ad_select AD_SELECT ]
[ ad_user_port_key PORTKEY ]
[ ad_actor_sys_prio SYSPRIO ]
[ ad_actor_system LLADDR ]
BONDMODE :=
balance-rr|active-backup|balance-xor|broadcast|802.3ad|balance-tlb|balance-alb
ARP_VALIDATE := none|active|backup|all
ARP_ALL_TARGETS := any|all
PRIMARY_RESELECT := always|better|failure
FAIL_OVER_MAC := none|active|follow
XMIT_HASH_POLICY := layer2|layer2+3|layer3+4|encap2+3|encap3+4|vlan+mac
LACP_RATE := slow|fast
AD_SELECT := stable|bandwidth|count
Cc: Stephen Hemminger <step...@networkplumber.org>
Cc: Jay Vosburgh <j.vosbu...@gmail.com>
Signed-off-by: Jarod Wilson <ja...@redhat.com>
---
ip/iplink_bond.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/ip/iplink_bond.c b/ip/iplink_bond.c
index 585b6be1..b9470b98 100644
--- a/ip/iplink_bond.c
+++ b/ip/iplink_bond.c
@@ -70,6 +70,7 @@ static const char *xmit_hash_policy_tbl[] = {
"layer2+3",
"encap2+3",
"encap3+4",
+ "vlan+mac",
NULL,
};
@@ -148,7 +149,7 @@ static void print_explain(FILE *f)
"ARP_ALL_TARGETS := any|all\n"
"PRIMARY_RESELECT := always|better|failure\n"
"FAIL_OVER_MAC := none|active|follow\n"
- "XMIT_HASH_POLICY :=
layer2|layer2+3|layer3+4|encap2+3|encap3+4\n"
+ "XMIT_HASH_POLICY :=
layer2|layer2+3|layer3+4|encap2+3|encap3+4|vlan+mac\n"
"LACP_RATE := slow|fast\n"
"AD_SELECT := stable|bandwidth|count\n"
);
--
2.27.0
