mirror_ubuntu-kernels/drivers/net
Anirudh Venkataramanan fd2a981777 ice: Prevent control queue operations during reset
Once reset is issued, the driver loses all control queue interfaces.
Exercising control queue operations during reset is incorrect and
may result in long timeouts.

This patch introduces a new field 'reset_ongoing' in the hw structure.
This is set to 1 by the core driver when it receives a reset interrupt.
ice_sq_send_cmd checks reset_ongoing before actually issuing the control
queue operation. If a reset is in progress, it returns a soft error code
(ICE_ERR_RESET_PENDING) to the caller. The caller may or may not have to
take any action based on this return. Once the driver knows that the
reset is done, it has to set reset_ongoing back to 0. This will allow
control queue operations to be posted to the hardware again.

This "bail out" logic was specifically added to ice_sq_send_cmd (which
is pretty low level function) so that we have one solution in one place
that applies to all types of control queues.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-08-28 10:20:00 -07:00
..
appletalk
arcnet
bonding Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-02 10:55:32 -07:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-08-15 15:04:25 -07:00
dsa net: dsa: add support for ksz9897 ethernet switch 2018-08-16 12:24:55 -07:00
ethernet ice: Prevent control queue operations during reset 2018-08-28 10:20:00 -07:00
fddi
fjes
hamradio
hippi
hyperv hv_netvsc: ignore devices that are not PCI 2018-08-21 12:02:11 -07:00
ieee802154 ieee802154: hwsim: using right kind of iteration 2018-08-14 09:58:57 -07:00
ipvlan
netdevsim Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-02 10:55:32 -07:00
phy net: dp83640: Mark expected switch fall-throughs 2018-08-11 11:28:34 -07:00
plip
ppp ppp: mppe: Remove VLA usage 2018-08-03 12:54:54 -07:00
slip
team
usb r8152: disable RX aggregation on new Dell TB16 dock 2018-08-20 13:03:29 -07:00
vmxnet3
wan Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-08-05 13:04:31 -07:00
wimax wimax: usb-tx: mark expected switch fall-through 2018-08-11 11:29:36 -07:00
wireless Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
xen-netback xen-netback: use true and false for boolean values 2018-08-02 14:43:04 -07:00
dummy.c
eql.c
geneve.c
gtp.c gtp: constify nla_policy 2018-07-20 12:33:37 -07:00
ifb.c
Kconfig
LICENSE.SRC
loopback.c
macsec.c
macvlan.c
macvtap.c
Makefile
mdio.c
mii.c
net_failover.c failover: change mtu has RTNL 2018-07-29 12:57:26 -07:00
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c
thunderbolt.c
tun.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-08-21 13:47:29 -07:00
veth.c veth: Free queues on link delete 2018-08-16 12:22:31 -07:00
virtio_net.c virtio_net: remove duplicated include from virtio_net.c 2018-08-13 09:21:05 -07:00
vrf.c
vsockmon.c
vxlan.c vxlan: fix default fdb entry netlink notify ordering during netdev create 2018-07-22 10:52:37 -07:00
xen-netfront.c xen-netfront: fix warn message as irq device name has '/' 2018-08-14 10:10:35 -07:00