linux_dsm_epyc7002/drivers/net
Vadim Pasternak 36844c855b mlxsw: core: Add validation of hardware device types for MGPIR register
When reading the number of gearboxes from the hardware, the driver does
not validate the returned 'device type' field. The driver can therefore
wrongly assume that the queried devices are gearboxes.

On Spectrum-3 systems that support different types of devices, this can
prevent the driver from loading, as it will try to query the
temperature sensors from devices which it assumes are gearboxes and in
fact are not.

For example:
[  218.129230] mlxsw_minimal 2-0048: Reg cmd access status failed (status=7(bad parameter))
[  218.138282] mlxsw_minimal 2-0048: Reg cmd access failed (reg_id=900a(mtmp),type=write)
[  218.147131] mlxsw_minimal 2-0048: Failed to setup temp sensor number 256
[  218.534480] mlxsw_minimal 2-0048: Fail to register core bus
[  218.540714] mlxsw_minimal: probe of 2-0048 failed with error -5

Fix this by validating the 'device type' field.

Fixes: 2e265a8b6c ("mlxsw: core: Extend hwmon interface with inter-connect temperature attributes")
Fixes: f14f4e621b ("mlxsw: core: Extend thermal core with per inter-connect device thermal zones")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-07 18:47:01 +01:00
..
appletalk
arcnet
bonding bonding/alb: properly access headers in bond_alb_xmit() 2020-02-05 14:28:09 +01:00
caif
can ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
dsa net: dsa: microchip: enable module autoprobe 2020-02-07 18:45:12 +01:00
ethernet mlxsw: core: Add validation of hardware device types for MGPIR register 2020-02-07 18:47:01 +01:00
fddi Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
fjes Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
hamradio Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-12-22 15:15:05 -08:00
hippi
hyperv hv_netvsc: Fix XDP refcnt for synthetic and VF NICs 2020-02-07 11:33:01 +01:00
ieee802154
ipvlan
netdevsim netdevsim: fix ptr_ret.cocci warnings 2020-02-05 13:55:32 +01:00
phy Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-04 13:32:20 +00:00
plip
ppp pptp: support sockets bound to an interface 2020-01-15 23:13:09 +01:00
slip Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
team
usb r8152: Add MAC passthrough support to new device 2020-02-04 11:58:10 +01:00
vmxnet3 vmxnet3: Remove always false conditional statement 2020-01-08 16:07:21 -08:00
wan Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
wimax
wireguard wireguard: noise: reject peers with low order public keys 2020-02-05 14:14:18 +01:00
wireless proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
xen-netback net: xen-netback: hash.c: Use built-in RCU list checking 2020-01-17 10:57:22 +01:00
dummy.c
eql.c
geneve.c
gtp.c gtp: use __GFP_NOWARN to avoid memalloc warning 2020-02-04 12:38:50 +01:00
ifb.c
Kconfig USB/Thunderbolt/PHY driver updates for 5.6-rc1 2020-01-29 10:09:44 -08:00
LICENSE.SRC
loopback.c
macsec.c net: macsec: PN wrap callback 2020-01-14 11:31:41 -08:00
macvlan.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
macvtap.c
Makefile USB/Thunderbolt/PHY driver updates for 5.6-rc1 2020-01-29 10:09:44 -08:00
mdio.c
mii.c
net_failover.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c net: tap: use skb_list_walk_safe helper for gso segments 2020-01-08 15:19:55 -08:00
thunderbolt.c
tun.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
veth.c bpf, xdp: Remove no longer required rcu_read_{un}lock() 2020-01-27 11:16:25 +01:00
virtio_net.c bpf, xdp: virtio_net use access ptr macro for xdp enable check 2020-01-27 11:16:25 +01:00
vrf.c
vsockmon.c
vxlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-09 12:13:43 -08:00
xen-netfront.c