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Bug 1930572

Summary: support to set bond option xmit_hash_policy to vlan+srcmac or 5
Product: Red Hat Enterprise Linux 8 Reporter: Mingyu Shi <mshi>
Component: iprouteAssignee: Andrea Claudi <aclaudi>
Status: CLOSED ERRATA QA Contact: Mingyu Shi <mshi>
Severity: medium Docs Contact:
Priority: medium    
Version: 8.4CC: aclaudi, atragler, jiji, jmaxwell, network-qe
Target Milestone: rcKeywords: Triaged
Target Release: 8.5Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: iproute-5.12.0-0.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-09 19:36:36 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1939382    
Bug Blocks: 1935910    

Description Mingyu Shi 2021-02-19 08:06:04 UTC 
Description of problem:
As described in https://bugzilla.redhat.com/show_bug.cgi?id=1724795 a new option "vlansrc" is being added to hashing options in kernel. iproute2 should support it.

The details can be found in the patch https://www.spinics.net/lists/kernel/msg3775505.html

Version-Release number of selected component (if applicable):
iproute-5.9.0-3.el8.x86_64

How reproducible:
100%

Steps to Reproduce:
ip link add bond4 type bond mode 4
ip -d link show bond4
# cannot set via iproute:
ip link set bond4 type bond xmit_hash_policy 5
ip link set bond4 type bond xmit_hash_policy vlan+srcmac
# set but cannot be shown:
echo 5 > /sys/class/net/bond4/bonding/xmit_hash_policy 
cat /sys/class/net/bond4/bonding/xmit_hash_policy
ip -d link show bond4

Actual results:
Cannot set and display

Expected results:
Support

Additional info:
# ip link add bond4 type bond mode 4
# ip -d link show bond4
44: bond4: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 02:03:9b:80:cf:77 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 65535 
    bond mode 802.3ad miimon 100 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 layer2 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535 
# ip link set bond4 type bond xmit_hash_policy 4
# ip link set bond4 type bond xmit_hash_policy 5
Error: argument "5" is wrong: invalid xmit_hash_policy
# ip link set bond4 type bond xmit_hash_policy vlan+srcmac
Error: argument "vlan+srcmac" is wrong: invalid xmit_hash_policy
# echo 5 > /sys/class/net/bond4/bonding/xmit_hash_policy 
# cat /sys/class/net/bond4/bonding/xmit_hash_policy
vlan+srcmac 5
# ip -d link show bond4
44: bond4: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 02:03:9b:80:cf:77 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 65535 
    bond mode 802.3ad miimon 100 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 UNKNOWN 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535
Comment 1 Mingyu Shi 2021-02-19 08:10:29 UTC 
Hi Andrea

Is it possible to be fixed in RHEL 8.4? (As we need exception+ now)
Comment 2 Andrea Claudi 2021-02-19 11:08:10 UTC 
Hi Mingyu,
upstream iproute also misses support for this. I'm working on a patch to add it, let's see if upstream accept it and the we'll work out the timing and see if this qualifies for exception+. Thanks!
Comment 3 Andrea Claudi 2021-02-19 11:10:45 UTC 
Correction, this is on iproute2-next already: commit 7887500008c6 ("bond: support xmit_hash_policy=vlan+srcmac")
Comment 9 Mingyu Shi 2021-05-15 04:09:48 UTC 
Verified: iproute-5.12.0-0.el8.x86_64

Can be set by "ip link set bond4 type bond xmit_hash_policy 5(or vlan+srcmac)"

[11:41:18@mshi-rhel-850-20210328d2 ~]0# ip link add bond4 type bond mode 4
[11:42:32@mshi-rhel-850-20210328d2 ~]0# ip -d link show bond4
81: bond4: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether da:f3:92:00:66:f0 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 65535 
    bond mode 802.3ad miimon 100 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 layer2 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535 
[11:43:03@mshi-rhel-850-20210328d2 ~]0# ip link set bond4 type bond xmit_hash_policy 5
[11:43:24@mshi-rhel-850-20210328d2 ~]0# ip -d link show bond4 | grep xmit_hash_policy
    bond mode 802.3ad miimon 100 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+srcmac 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535 
[11:43:27@mshi-rhel-850-20210328d2 ~]0# ip link set bond4 type bond xmit_hash_policy layer2
[11:43:52@mshi-rhel-850-20210328d2 ~]0# ip -d link show bond4 | grep xmit_hash_policy
    bond mode 802.3ad miimon 100 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 layer2 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535 
[11:44:03@mshi-rhel-850-20210328d2 ~]0# ip link set bond4 type bond xmit_hash_policy vlan+srcmac
[11:44:11@mshi-rhel-850-20210328d2 ~]0# ip -d link show bond4 | grep xmit_hash_policy
    bond mode 802.3ad miimon 100 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+srcmac 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 ad_actor_sys_prio 65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00 tlb_dynamic_lb 1 addrgenmode eui64 numtxqueues 16 numrxqueues 16 gso_max_size 65536 gso_max_segs 65535
Comment 11 errata-xmlrpc 2021-11-09 19:36:36 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (iproute bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4389