Verification for jammy:linux on machine beldam:
+ uname -a
Linux beldam 5.15.0-163-generic #173-Ubuntu SMP Tue Oct 14 17:51:00 UTC 2025
x86_64 x86_64 x86_64 GNU/Linux
+ echo 0
+ echo
+ echo
+ echo 0
+ echo
+ echo function
+ echo i40e_vc_reset_vf
+ echo 'p:i40e_probe i40e_ndo_set_vf_link_state netdev=%di vf_id=%si:x32
link=%dx:x32'
+ echo 1
+ echo 1
+ echo 4
+ sudo tee /sys/class/net/enp176s0f0/device/sriov_numvfs
4
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state enable
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state enable, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state disable
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state disable, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ echo 0
+ cp /sys/kernel/debug/tracing/trace /tmp/trace.out
+ cat /tmp/trace.out
# tracer: function
#
# entries-in-buffer/entries-written: 13/13 #P:80
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / _-=> migrate-disable
# |||| / delay
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
ip-2158 [065] ..... 56.836980: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x0
ip-2158 [065] ..... 56.836984: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2163 [065] ..... 61.982873: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x0
ip-2163 [065] ..... 61.982876: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2166 [026] ..... 67.130111: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x1
ip-2166 [026] ..... 67.130115: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2169 [026] ..... 72.278177: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x2
ip-2172 [026] ..... 77.285939: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x0
ip-2172 [026] ..... 77.285941: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2175 [066] ..... 82.434528: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x0
ip-2175 [066] ..... 82.434530: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2177 [065] ..... 87.579797: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x1e0 [i40e]) netdev=0xffff8d808caa2000
vf_id=0x0 link=0x0
ip-2177 [065] ..... 87.579800: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
Re-running test with kernel from -164 from -proposed:
+ uname -a
Linux beldam 5.15.0-164-generic #174-Ubuntu SMP Fri Nov 14 20:25:16 UTC 2025
x86_64 x86_64 x86_64 GNU/Linux
+ echo 0
+ echo
+ echo
+ echo 0
+ echo
+ echo function
+ echo i40e_vc_reset_vf
+ echo 'p:i40e_probe i40e_ndo_set_vf_link_state netdev=%di vf_id=%si:x32
link=%dx:x32'
+ echo 1
+ echo 1
+ echo 4
+ sudo tee /sys/class/net/enp176s0f0/device/sriov_numvfs
4
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state enable
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state enable, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state disable
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state disable, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link show enp176s0f0
2: enp176s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
mode DEFAULT group default qlen 1000
link/ether 40:a6:b7:5d:39:88 brd ff:ff:ff:ff:ff:ff
vf 0 link/ether 5a:ad:a2:b2:a4:90 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 1 link/ether 6a:f9:15:ff:2e:da brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 2 link/ether 06:fd:29:99:12:ee brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
vf 3 link/ether 3e:37:a7:f9:6b:e2 brd ff:ff:ff:ff:ff:ff, spoof checking
on, link-state auto, trust off
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ ip link set enp176s0f0 vf 0 state auto
+ sleep 5
+ echo 0
+ cp /sys/kernel/debug/tracing/trace /tmp/trace.out
+ cat /tmp/trace.out
# tracer: function
#
# entries-in-buffer/entries-written: 9/9 #P:80
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / _-=> migrate-disable
# |||| / delay
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
ip-2596 [037] ..... 1910.983360: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x0
ip-2598 [037] ..... 1915.988117: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x0
ip-2601 [037] ..... 1920.995596: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x1
ip-2601 [037] ..... 1920.995598: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2604 [078] ..... 1926.143302: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x2
ip-2608 [078] ..... 1931.151087: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x0
ip-2608 [078] ..... 1931.151090: i40e_vc_reset_vf
<-i40e_ndo_set_vf_link_state
ip-2611 [078] ..... 1936.299447: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x0
ip-2613 [077] ..... 1941.304198: i40e_probe:
(i40e_ndo_set_vf_link_state+0x0/0x240 [i40e]) netdev=0xffff8a11c69c1000
vf_id=0x0 link=0x0
** Tags removed: verification-needed-jammy-linux
** Tags added: verification-done-jammy-linux
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https://bugs.launchpad.net/bugs/2130552
Title:
i40e driver is triggering VF resets on every link state change
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