mirror_ubuntu-kernels/drivers/net
Kai-Heng Feng 2ca1c94ce0 tg3: Disable tg3 device on system reboot to avoid triggering AER
Commit d60cd06331 ("PM: ACPI: reboot: Use S5 for reboot") caused a
reboot hang on one Dell servers so the commit was reverted.

Someone managed to collect the AER log and it's caused by MSI:
[ 148.762067] ACPI: Preparing to enter system sleep state S5
[ 148.794638] {1}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 5
[ 148.803731] {1}[Hardware Error]: event severity: recoverable
[ 148.810191] {1}[Hardware Error]: Error 0, type: fatal
[ 148.816088] {1}[Hardware Error]: section_type: PCIe error
[ 148.822391] {1}[Hardware Error]: port_type: 0, PCIe end point
[ 148.829026] {1}[Hardware Error]: version: 3.0
[ 148.834266] {1}[Hardware Error]: command: 0x0006, status: 0x0010
[ 148.841140] {1}[Hardware Error]: device_id: 0000:04:00.0
[ 148.847309] {1}[Hardware Error]: slot: 0
[ 148.852077] {1}[Hardware Error]: secondary_bus: 0x00
[ 148.857876] {1}[Hardware Error]: vendor_id: 0x14e4, device_id: 0x165f
[ 148.865145] {1}[Hardware Error]: class_code: 020000
[ 148.870845] {1}[Hardware Error]: aer_uncor_status: 0x00100000, aer_uncor_mask: 0x00010000
[ 148.879842] {1}[Hardware Error]: aer_uncor_severity: 0x000ef030
[ 148.886575] {1}[Hardware Error]: TLP Header: 40000001 0000030f 90028090 00000000
[ 148.894823] tg3 0000:04:00.0: AER: aer_status: 0x00100000, aer_mask: 0x00010000
[ 148.902795] tg3 0000:04:00.0: AER: [20] UnsupReq (First)
[ 148.910234] tg3 0000:04:00.0: AER: aer_layer=Transaction Layer, aer_agent=Requester ID
[ 148.918806] tg3 0000:04:00.0: AER: aer_uncor_severity: 0x000ef030
[ 148.925558] tg3 0000:04:00.0: AER: TLP Header: 40000001 0000030f 90028090 00000000

The MSI is probably raised by incoming packets, so power down the device
and disable bus mastering to stop the traffic, as user confirmed this
approach works.

In addition to that, be extra safe and cancel reset task if it's running.

Cc: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/all/b8db79e6857c41dab4ef08bdf826ea7c47e3bafc.1615947283.git.josef@toxicpanda.com/
BugLink: https://bugs.launchpad.net/bugs/1917471
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20220826002530.1153296-1-kai.heng.feng@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26 18:33:26 -07:00
..
appletalk
arcnet
bonding bonding: 3ad: make ad_ticks_per_sec a const 2022-08-22 18:30:24 -07:00
caif
can Including fixes from bluetooth, bpf, can and netfilter. 2022-08-11 13:45:37 -07:00
dsa net: dsa: microchip: make learning configurable and keep it off while standalone 2022-08-23 14:36:56 -07:00
ethernet tg3: Disable tg3 device on system reboot to avoid triggering AER 2022-08-26 18:33:26 -07:00
fddi skfp/h: fix repeated words in comments 2022-08-12 11:20:29 +01:00
fjes
hamradio
hippi
hyperv
ieee802154
ipa net: ipa: don't assume SMEM is page-aligned 2022-08-22 18:10:48 -07:00
ipvlan net: ipvtap - add __init/__exit annotations to module init/exit funcs 2022-08-23 15:45:53 +02:00
mctp
mdio
netdevsim Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-08-03 09:04:55 +02:00
pcs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-07-28 18:21:16 -07:00
phy net: phy: Don't WARN for PHY_READY state in mdio_bus_phy_resume() 2022-08-22 18:14:10 -07:00
plip plip: avoid rcu debug splat 2022-08-09 12:16:02 -07:00
ppp
slip
team
usb r8152: fix the RX FIFO settings when suspending 2022-08-22 14:28:59 +01:00
vmxnet3 vmxnet3: do not reschedule napi for rx processing 2022-07-29 12:11:23 +01:00
vxlan vxlan: do not use RT_TOS for IPv6 flowlabel 2022-08-09 22:19:20 -07:00
wan
wireguard Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
wireless Including fixes from bluetooth, bpf, can and netfilter. 2022-08-11 13:45:37 -07:00
wwan
xen-netback
amt.c amt: fix typo in comment 2022-07-28 22:21:51 -07:00
bareudp.c
dummy.c
eql.c
geneve.c geneve: do not use RT_TOS for IPv6 flowlabel 2022-08-09 22:19:20 -07:00
gtp.c
ifb.c
Kconfig
LICENSE.SRC
loopback.c
macsec.c Revert "net: macsec: update SCI upon MAC address change." 2022-08-19 16:50:36 -07:00
macvlan.c
macvtap.c
Makefile
mdio.c
mhi_net.c
mii.c
net_failover.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c net: sungem_phy: Add of_node_put() for reference returned by of_get_parent() 2022-07-21 19:04:19 -07:00
tap.c net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null 2022-08-05 08:56:35 +01:00
thunderbolt.c
tun.c
veth.c Revert "veth: Add updating of trans_start" 2022-08-03 19:20:13 -07:00
virtio_net.c Including fixes from netfilter. 2022-08-18 19:37:15 -07:00
vrf.c
vsockmon.c
xen-netfront.c