linux/drivers/net
Paul Blakey 15ef9efa85 net/mlx5e: CT: Fix cleanup of CT before cleanup of TC ct rules
CT cleanup assumes that all tc rules were deleted first, and so
is free to delete the CT shared resources (e.g the dr_action
fwd_action which is shared for all tuples). But currently for
uplink, this is happens in reverse, causing the below trace.

CT cleanup is called from:
mlx5e_cleanup_rep_tx()->mlx5e_cleanup_uplink_rep_tx()->
mlx5e_rep_tc_cleanup()->mlx5e_tc_esw_cleanup()->
mlx5_tc_ct_clean()

Only afterwards, tc cleanup is called from:
mlx5e_cleanup_rep_tx()->mlx5e_tc_ht_cleanup()
which would have deleted all the tc ct rules, and so delete
all the offloaded tuples.

Fix this reversing the order of init and on cleanup, which
will result in tc cleanup then ct cleanup.

[ 9443.593347] WARNING: CPU: 2 PID: 206774 at drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c:1882 mlx5dr_action_destroy+0x188/0x1a0 [mlx5_core]
[ 9443.593349] Modules linked in: act_ct nf_flow_table rdma_ucm(O) rdma_cm(O) iw_cm(O) ib_ipoib(O) ib_cm(O) ib_umad(O) mlx5_core(O-) mlxfw(O) mlxdevm(O) auxiliary(O) ib_uverbs(O) psample ib_core(O) mlx_compat(O) ip_gre gre ip_tunnel act_vlan bonding geneve esp6_offload esp6 esp4_offload esp4 act_tunnel_key vxlan ip6_udp_tunnel udp_tunnel act_mirred act_skbedit act_gact cls_flower sch_ingress nfnetlink_cttimeout nfnetlink xfrm_user xfrm_algo 8021q garp stp ipmi_devintf mrp ipmi_msghandler llc openvswitch nsh nf_conncount nf_nat mst_pciconf(O) dm_multipath sbsa_gwdt uio_pdrv_genirq uio mlxbf_pmc mlxbf_pka mlx_trio mlx_bootctl(O) bluefield_edac sch_fq_codel ip_tables ipv6 crc_ccitt btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq raid1 raid0 crct10dif_ce i2c_mlxbf gpio_mlxbf2 mlxbf_gige aes_neon_bs aes_neon_blk [last unloaded: mlx5_ib]
[ 9443.593419] CPU: 2 PID: 206774 Comm: modprobe Tainted: G           O      5.4.0-1023.24.gc14613d-bluefield #1
[ 9443.593422] Hardware name: https://www.mellanox.com BlueField SoC/BlueField SoC, BIOS BlueField:143ebaf Jan 11 2022
[ 9443.593424] pstate: 20000005 (nzCv daif -PAN -UAO)
[ 9443.593489] pc : mlx5dr_action_destroy+0x188/0x1a0 [mlx5_core]
[ 9443.593545] lr : mlx5_ct_fs_smfs_destroy+0x24/0x30 [mlx5_core]
[ 9443.593546] sp : ffff8000135dbab0
[ 9443.593548] x29: ffff8000135dbab0 x28: ffff0003a6ab8e80
[ 9443.593550] x27: 0000000000000000 x26: ffff0003e07d7000
[ 9443.593552] x25: ffff800009609de0 x24: ffff000397fb2120
[ 9443.593554] x23: ffff0003975c0000 x22: 0000000000000000
[ 9443.593556] x21: ffff0003975f08c0 x20: ffff800009609de0
[ 9443.593558] x19: ffff0003c8a13380 x18: 0000000000000014
[ 9443.593560] x17: 0000000067f5f125 x16: 000000006529c620
[ 9443.593561] x15: 000000000000000b x14: 0000000000000000
[ 9443.593563] x13: 0000000000000002 x12: 0000000000000001
[ 9443.593565] x11: ffff800011108868 x10: 0000000000000000
[ 9443.593567] x9 : 0000000000000000 x8 : ffff8000117fb270
[ 9443.593569] x7 : ffff0003ebc01288 x6 : 0000000000000000
[ 9443.593571] x5 : ffff800009591ab8 x4 : fffffe000f6d9a20
[ 9443.593572] x3 : 0000000080040001 x2 : fffffe000f6d9a20
[ 9443.593574] x1 : ffff8000095901d8 x0 : 0000000000000025
[ 9443.593577] Call trace:
[ 9443.593634]  mlx5dr_action_destroy+0x188/0x1a0 [mlx5_core]
[ 9443.593688]  mlx5_ct_fs_smfs_destroy+0x24/0x30 [mlx5_core]
[ 9443.593743]  mlx5_tc_ct_clean+0x34/0xa8 [mlx5_core]
[ 9443.593797]  mlx5e_tc_esw_cleanup+0x58/0x88 [mlx5_core]
[ 9443.593851]  mlx5e_rep_tc_cleanup+0x24/0x30 [mlx5_core]
[ 9443.593905]  mlx5e_cleanup_rep_tx+0x6c/0x78 [mlx5_core]
[ 9443.593959]  mlx5e_detach_netdev+0x74/0x98 [mlx5_core]
[ 9443.594013]  mlx5e_netdev_change_profile+0x70/0x180 [mlx5_core]
[ 9443.594067]  mlx5e_netdev_attach_nic_profile+0x34/0x40 [mlx5_core]
[ 9443.594122]  mlx5e_vport_rep_unload+0x15c/0x1a8 [mlx5_core]
[ 9443.594177]  mlx5_eswitch_unregister_vport_reps+0x228/0x298 [mlx5_core]
[ 9443.594231]  mlx5e_rep_remove+0x2c/0x38 [mlx5_core]
[ 9443.594236]  auxiliary_bus_remove+0x30/0x50 [auxiliary]
[ 9443.594246]  device_release_driver_internal+0x108/0x1d0
[ 9443.594248]  driver_detach+0x5c/0xe8
[ 9443.594250]  bus_remove_driver+0x64/0xd8
[ 9443.594253]  driver_unregister+0x38/0x60
[ 9443.594255]  auxiliary_driver_unregister+0x24/0x38 [auxiliary]
[ 9443.594311]  mlx5e_rep_cleanup+0x20/0x38 [mlx5_core]
[ 9443.594365]  mlx5e_cleanup+0x18/0x30 [mlx5_core]
[ 9443.594419]  cleanup+0xc/0x20cc [mlx5_core]
[ 9443.594424]  __arm64_sys_delete_module+0x154/0x2b0
[ 9443.594429]  el0_svc_common.constprop.0+0xf4/0x200
[ 9443.594432]  el0_svc_handler+0x38/0xa8
[ 9443.594435]  el0_svc+0x10/0x26c

Fixes: d1a3138f79 ("net/mlx5e: TC, Move flow hashtable to be per rep")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2022-06-08 11:39:43 -07:00
..
appletalk net: appletalk: remove Apple/Farallon LocalTalk PC support 2022-05-11 13:08:38 +01:00
arcnet
bonding bonding: guard ns_targets by CONFIG_IPV6 2022-06-01 11:18:55 +02:00
caif caif_virtio: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
can can: ctucanfd: platform: add missing dependency to HAS_IOMEM 2022-05-23 22:00:06 +02:00
dsa net: dsa: lantiq_gswip: Fix refcount leak in gswip_gphy_fw_list 2022-06-07 20:45:14 -07:00
ethernet net/mlx5e: CT: Fix cleanup of CT before cleanup of TC ct rules 2022-06-08 11:39:43 -07:00
fddi net: fddi: skfp: smt: Remove extra parameters to vararg macro 2022-05-22 23:05:56 +01:00
fjes
hamradio
hippi
hyperv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-05-23 21:19:17 -07:00
ieee802154
ipa net: ipa: fix page free in ipa_endpoint_replenish_one() 2022-05-27 18:29:50 -07:00
ipvlan net: add netif_inherit_tso_max() 2022-05-06 12:07:56 +01:00
mctp
mdio Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-05-05 13:03:18 -07:00
netdevsim netdevsim: rely on XFRM state direction instead of flags 2022-05-06 08:34:33 +02:00
pcs
phy net: mdio: unexport __init-annotated mdio_bus_init() 2022-06-08 10:10:13 -07:00
plip
ppp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-05-19 11:23:59 -07:00
slip
team
usb net: usb: qmi_wwan: Add support for Cinterion MV31 with new baseline 2022-06-01 18:09:34 -07:00
vmxnet3 net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup() 2022-05-17 12:03:52 +02:00
vxlan net: vxlan: Fix kernel coding style 2022-05-20 17:38:27 -07:00
wan net: wan: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
wireguard
wireless wifi: rtw88: add a work to correct atomic scheduling warning of ::set_tim 2022-05-30 12:15:07 +03:00
wwan wwan: iosm: use a flexible array rather than allocate short objects 2022-05-20 17:56:50 -07:00
xen-netback xen/netback: fix incorrect usage of RING_HAS_UNCONSUMED_REQUESTS() 2022-05-31 12:22:22 +02:00
amt.c amt: fix wrong type string definition 2022-06-06 14:27:35 -07:00
bareudp.c
dummy.c
eql.c
geneve.c
gtp.c
ifb.c
Kconfig
LICENSE.SRC
loopback.c net: loopback: enable BIG TCP packets 2022-05-16 10:18:56 +01:00
macsec.c macsec: fix UAF bug for real_dev 2022-06-01 12:01:47 +02:00
macvlan.c rtnetlink: add extack support in fdb del handlers 2022-05-09 11:58:20 +01:00
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 eth: amd: remove NI6510 support (ni65) 2022-05-11 13:09:59 +01:00
sungem_phy.c sungem: Prepare cleanup of powerpc's asm/prom.h 2022-05-05 15:52:27 -07:00
tap.c
thunderbolt.c
tun.c net: switch to netif_napi_add_tx() 2022-05-05 15:54:12 -07:00
veth.c veth: enable BIG TCP packets 2022-05-16 10:18:56 +01:00
virtio_net.c net: virtio: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
vrf.c
vsockmon.c
xen-netfront.c xen/netfront: use xenbus_setup_ring() and xenbus_teardown_ring() 2022-05-19 14:21:58 +02:00