selftests: forwarding: test for bridge mcast traffic after report and leave
This test is split in two, the first part checks if a report creates a
corresponding mdb entry and if traffic is properly forwarded to it, and
the second part checks if the mdb entry is deleted after a leave and
if traffic is *not* forwarded to it. Since the mcast querier is enabled
we should see standard mcast snooping bridge behaviour.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Fri, 5 Apr 2019 13:59:16 +0000 (14:59 +0100)]
net: hns: fix unsigned comparison to less than zero
Currently mskid is unsigned and hence comparisons with negative
error return values are always false. Fix this by making mskid an
int.
Fixes: f058e46855dc ("net: hns: fix ICMP6 neighbor solicitation messages discard problem")
Addresses-Coverity: ("Operands don't affect result") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 7 Apr 2019 01:21:46 +0000 (18:21 -0700)]
Merge branch 'r8152-runtime-mac-changes'
Mario Limonciello says:
====================
r8152: Support runtime changes of vendor mac passthu policy
On some platforms ACPI method `\\_SB.AMAC` is dynamic and changes to it can
influence changing the behavior of MAC pass through and what MAC address is used.
When running USB reset, re-read the MAC address to use to support tools that
change the policy.
This is quite similar to using `SIOCSIFHWADDR` except that the actual MAC to use
comes from ASL rather than from userspace.
Changes from v1:
* Remove an extra unneeded `ether_addr_copy` call
* Use `dev_set_mac_address` to ensure all notifiers are called
* Shuffle functions to allow code re-use.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Thu, 4 Apr 2019 14:46:03 +0000 (15:46 +0100)]
tcp: remove redundant check on tskb
The non-null check on tskb is always false because it is in an else
path of a check on tskb and hence tskb is null in this code block.
This is check is therefore redundant and can be removed as well
as the label coalesc.
if (tsbk) {
...
} else {
...
if (unlikely(!skb)) {
if (tskb) /* can never be true, redundant code */
goto coalesc;
return;
}
}
Addresses-Coverity: ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 7 Apr 2019 01:16:58 +0000 (18:16 -0700)]
Merge branch 'net-phy-add-Amlogic-g12a-support'
Jerome Brunet says:
====================
net: phy: add Amlogic g12a support
This patchset adds the necessary bits to support network on the Amlogic
g12a SoC family.
Only the internal PHY and related MDIO mux needed to be addressed.
The GMAC remains compatible with axg SoC family
This series has been tested on the u200 (S905D2) with both the internal
and external (Realtek) PHYs.
Change since v2 [1]:
* Change 'clk part' Reviewed-by as suggested
* Remove default callback from phy drivers
* Use exact match PHY macros
* Default MDIO g12a as module if ARCH_MESON is enabled
* Don't print error on probe defer in the g12a mdio mux
Change since v1 [0]:
* drop '_' from function name unrelated to locking
* fix peripheral clock disable on error
* fix variable declaration reverse Xmas trees
* fix Kconfig dependency on CCF
(Actually needed for 'struct clk_hw', Thx Andrew !)
* Minor fix in the DT exemple as reported by Rob
The purpose of this change is to align the gxl and g12a driver
declaration.
Like on the g12a variant, remove genphy_aneg_done() from the driver
declaration as the net phy framework will default to it anyway.
Also, the gxl phy id should be an exact match as well, so let's change
this and use the macro provided.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The g12a SoC family uses the type of internal PHY that was used on the
gxl family. The quirks of gxl family, like the LPA register corruption,
appear to have been resolved on this new SoC generation.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for the mdio mux and internal phy glue of the g12a SoC family
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # clk parts Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Sun, 31 Mar 2019 13:43:59 +0000 (15:43 +0200)]
r8169: disable tx interrupt coalescing on RTL8168
In contrast to switching rx irq coalescing off what fixed an issue,
switching tx irq coalescing off is merely a latency optimization,
therefore net-next. As part of this change:
- Remove INTT_0 .. INTT_3 constants, they aren't used.
- Remove comment in rtl_hw_start_8169(), we now have a detailed
description by the code in rtl_set_coalesce().
- Due to switching irq coalescing off per default we don't need the
initialization in rtl_hw_start_8168(). If ethtool is used to switch
on coalescing then rtl_set_coalesce() will configure this register.
For the sake of completeness: This patch just changes the default.
Users still have the option to configure irq coalescing via ethtool.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux
Pull mm/compaction fixes from Mel Gorman:
"The merge window for 5.1 introduced a number of compaction-related
patches. with intermittent reports of corruption and functional
issues. The bugs are due to sloopy checking of zone boundaries and a
corner case where invalid indexes are used to access the free lists.
Reports are not common but at least two users and 0-day have tripped
over them. There is a chance that one of the syzbot reports are
related but it has not been confirmed properly.
The normal submission path is with Andrew but there have been some
delays and I consider them urgent enough that they should be picked up
before RC4 to avoid duplicate reports.
All of these have been successfully tested on older RC windows. This
will make this branch look like a rebase but in fact, they've simply
been lifted again from Andrew's tree and placed on a fresh branch.
I've no reason to believe that this has invalidated the testing given
the lack of change in compaction and the nature of the fixes"
* tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux:
mm/compaction.c: abort search if isolation fails
mm/compaction.c: correct zone boundary handling when resetting pageblock skip hints
The n_r3964 line discipline driver was written in a different time, when
SMP machines were rare, and users were trusted to do the right thing.
Since then, the world has moved on but not this code, it has stayed
rooted in the past with its lovely hand-crafted list structures and
loads of "interesting" race conditions all over the place.
After attempting to clean up most of the issues, I just gave up and am
now marking the driver as BROKEN so that hopefully someone who has this
hardware will show up out of the woodwork (I know you are out there!)
and will help with debugging a raft of changes that I had laying around
for the code, but was too afraid to commit as odds are they would break
things.
Many thanks to Jann and Linus for pointing out the initial problems in
this codebase, as well as many reviews of my attempts to fix the issues.
It was a case of whack-a-mole, and as you can see, the mole won.
Merge tag 'drm-fixes-2019-04-05' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Pretty quiet week, just some amdgpu and i915 fixes.
i915:
- deadlock fix
- gvt fixes
amdgpu:
- PCIE dpm feature fix
- Powerplay fixes"
* tag 'drm-fixes-2019-04-05' of git://anongit.freedesktop.org/drm/drm:
drm/i915/gvt: Fix kerneldoc typo for intel_vgpu_emulate_hotplug
drm/i915/gvt: Correct the calculation of plane size
drm/amdgpu: remove unnecessary rlc reset function on gfx9
drm/i915: Always backoff after a drm_modeset_lock() deadlock
drm/i915/gvt: do not let pin count of shadow mm go negative
drm/i915/gvt: do not deliver a workload if its creation fails
drm/amd/display: VBIOS can't be light up HDMI when restart system
drm/amd/powerplay: fix possible hang with 3+ 4K monitors
drm/amd/powerplay: correct data type to avoid overflow
drm/amd/powerplay: add ECC feature bit
drm/amd/amdgpu: fix PCIe dpm feature issue (v3)
1) Several hash table refcount fixes in batman-adv, from Sven
Eckelmann.
2) Use after free in bpf_evict_inode(), from Daniel Borkmann.
3) Fix mdio bus registration in ixgbe, from Ivan Vecera.
4) Unbounded loop in __skb_try_recv_datagram(), from Paolo Abeni.
5) ila rhashtable corruption fix from Herbert Xu.
6) Don't allow upper-devices to be added to vrf devices, from Sabrina
Dubroca.
7) Add qmi_wwan device ID for Olicard 600, from Bjørn Mork.
8) Don't leave skb->next poisoned in __netif_receive_skb_list_ptype,
from Alexander Lobakin.
9) Missing IDR checks in mlx5 driver, from Aditya Pakki.
10) Fix false connection termination in ktls, from Jakub Kicinski.
11) Work around some ASPM issues with r8169 by disabling rx interrupt
coalescing on certain chips. From Heiner Kallweit.
12) Properly use per-cpu qstat values on NOLOCK qdiscs, from Paolo
Abeni.
13) Fully initialize sockaddr_in structures in SCTP, from Xin Long.
14) Various BPF flow dissector fixes from Stanislav Fomichev.
15) Divide by zero in act_sample, from Davide Caratti.
16) Fix bridging multicast regression introduced by rhashtable
conversion, from Nikolay Aleksandrov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (106 commits)
ibmvnic: Fix completion structure initialization
ipv6: sit: reset ip header pointer in ipip6_rcv
net: bridge: always clear mcast matching struct on reports and leaves
libcxgb: fix incorrect ppmax calculation
vlan: conditional inclusion of FCoE hooks to match netdevice.h and bnx2x
sch_cake: Make sure we can write the IP header before changing DSCP bits
sch_cake: Use tc_skb_protocol() helper for getting packet protocol
tcp: Ensure DCTCP reacts to losses
net/sched: act_sample: fix divide by zero in the traffic path
net: thunderx: fix NULL pointer dereference in nicvf_open/nicvf_stop
net: hns: Fix sparse: some warnings in HNS drivers
net: hns: Fix WARNING when remove HNS driver with SMMU enabled
net: hns: fix ICMP6 neighbor solicitation messages discard problem
net: hns: Fix probabilistic memory overwrite when HNS driver initialized
net: hns: Use NAPI_POLL_WEIGHT for hns driver
net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
flow_dissector: rst'ify documentation
ipv6: Fix dangling pointer when ipv6 fragment
net-gro: Fix GRO flush when receiving a GSO packet.
flow_dissector: document BPF flow dissector environment
...
Thomas Falcon [Thu, 4 Apr 2019 23:58:26 +0000 (18:58 -0500)]
ibmvnic: Fix completion structure initialization
Fix device initialization completion handling for vNIC adapters.
Initialize the completion structure on probe and reinitialize when needed.
This also fixes a race condition during kdump where the driver can attempt
to access the completion struct before it is initialized:
ipip6 tunnels run iptunnel_pull_header on received skbs. This can
determine the following use-after-free accessing iph pointer since
the packet will be 'uncloned' running pskb_expand_head if it is a
cloned gso skb (e.g if the packet has been sent though a veth device)
Fix it resetting iph pointer after iptunnel_pull_header
Fixes: a09a4c8dd1ec ("tunnels: Remove encapsulation offloads on decap") Tested-by: Jianlin Shi <jishi@redhat.com> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
====================
tipc: improve TIPC unicast link throughput
The series introduces an algorithm to improve TIPC throughput especially
in terms of packet loss, also tries to reduce packet duplication due to
overactive NACK sending mechanism.
The link failover situation is also covered by the patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
tipc: adapt link failover for new Gap-ACK algorithm
In commit 0ae955e2656d ("tipc: improve TIPC throughput by Gap ACK
blocks"), we enhance the link transmq by releasing as many packets as
possible with the multi-ACKs from peer node. This also means the queue
is now non-linear and the peer link deferdq becomes vital.
Whereas, in the case of link failover, all messages in the link transmq
need to be transmitted as tunnel messages in such a way that message
sequentiality and cardinality per sender is preserved. This requires us
to maintain the link deferdq somehow, so that when the tunnel messages
arrive, the inner user messages along with the ones in the deferdq will
be delivered to upper layer correctly.
The commit accomplishes this by defining a new queue in the TIPC link
structure to hold the old link deferdq when link failover happens and
process it upon receipt of tunnel messages.
Also, in the case of link syncing, the link deferdq will not be purged
to avoid unnecessary retransmissions that in the worst case will fail
because the packets might have been freed on the sending side.
Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
tipc: reduce duplicate packets for unicast traffic
For unicast transmission, the current NACK sending althorithm is over-
active that forces the sending side to retransmit a packet that is not
really lost but just arrived at the receiving side with some delay, or
even retransmit same packets that have already been retransmitted
before. As a result, many duplicates are observed also under normal
condition, ie. without packet loss.
One example case is: node1 transmits 1 2 3 4 10 5 6 7 8 9, when node2
receives packet #10, it puts into the deferdq. When the packet #5 comes
it sends NACK with gap [6 - 9]. However, shortly after that, when
packet #6 arrives, it pulls out packet #10 from the deferfq, but it is
still out of order, so it makes another NACK with gap [7 - 9] and so on
... Finally, node1 has to retransmit the packets 5 6 7 8 9 a number of
times, but in fact all the packets are not lost at all, so duplicates!
This commit reduces duplicates by changing the condition to send NACK,
also restricting the retransmissions on individual packets via a timer
of about 1ms. However, it also needs to say that too tricky condition
for NACKs or too long timeout value for retransmissions will result in
performance reducing! The criterias in this commit are found to be
effective for both the requirements to reduce duplicates but not affect
performance.
The tipc_link_rcv() is also improved to only dequeue skb from the link
deferdq if it is expected (ie. its seqno <= rcv_nxt).
Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
During unicast link transmission, it's observed very often that because
of one or a few lost/dis-ordered packets, the sending side will fastly
reach the send window limit and must wait for the packets to be arrived
at the receiving side or in the worst case, a retransmission must be
done first. The sending side cannot release a lot of subsequent packets
in its transmq even though all of them might have already been received
by the receiving side.
That is, one or two packets dis-ordered/lost and dozens of packets have
to wait, this obviously reduces the overall throughput!
This commit introduces an algorithm to overcome this by using "Gap ACK
blocks". Basically, a Gap ACK block will consist of <ack, gap> numbers
that describes the link deferdq where packets have been got by the
receiving side but with gaps, for example:
The Gap ACK blocks will be sent to the sending side along with the
traditional ACK or NACK message. Immediately when receiving the message
the sending side will now not only release from its transmq the packets
ack-ed by the ACK but also by the Gap ACK blocks! So, more packets can
be enqueued and transmitted.
In addition, the sending side can now do "multi-retransmissions"
according to the Gaps reported in the Gap ACK blocks.
The new algorithm as verified helps greatly improve the TIPC throughput
especially under packet loss condition.
So far, a maximum of 32 blocks is quite enough without any "Too few Gap
ACK blocks" reports with a 5.0% packet loss rate, however this number
can be increased in the furture if needed.
Also, the patch is backward compatible.
Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge tag 'riscv-for-linus-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V fixes from Palmer Dabbelt:
"I dropped the ball a bit here: these patches should all probably have
been part of rc2, but I wanted to get around to properly testing them
in the various configurations (qemu32, qeum64, unleashed) first.
Unfortunately I've been traveling and didn't have time to actually do
that, but since these fix concrete bugs and pass my old set of tests I
don't want to delay the fixes any longer.
There are four independent fixes here:
- A fix for the rv32 port that corrects the 64-bit user accesor's
fixup label address.
- A fix for a regression introduced during the merge window that
broke medlow configurations at run time. This patch also includes a
fix that disables ftrace for the same set of functions, which was
found by inspection at the same time.
- A modification of the memory map to avoid overlapping the FIXMAP
and VMALLOC regions on systems with small memory maps.
- A fix to the module handling code to use the correct syntax for
probing Kconfig entries.
These have passed my standard test flow, but I didn't have time to
expand that testing like I said I would"
* tag 'riscv-for-linus-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
RISC-V: Use IS_ENABLED(CONFIG_CMODEL_MEDLOW)
RISC-V: Fix FIXMAP_TOP to avoid overlap with VMALLOC area
RISC-V: Always compile mm/init.c with cmodel=medany and notrace
riscv: fix accessing 8-byte variable from RV32
David S. Miller [Fri, 5 Apr 2019 00:55:37 +0000 (17:55 -0700)]
Merge branch 'genphy-ability'
Heiner Kallweit says:
====================
net: phy: use generic PHY ability readers if callback get_features isn't set
Meanwhile we have generic functions for reading the abilities of
Clause 22 / 45 PHY's. This allows to use them as fallback in case
callback get_features isn't set. Benefit is the reduction of
boilerplate code in PHY drivers.
v2:
- adjust a comment in patch 1 to match the code
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
net: phy: allow a PHY driver to define neither features nor get_features
Meanwhile we have generic functions for reading the abilities of
Clause 22 / 45 PHY's. This allows to use them as fallback in case
callback get_features isn't set. Benefit is the reduction of
boilerplate code in PHY drivers.
v2:
- adjust the comment in phy_driver_register to match the code
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
net: bridge: always clear mcast matching struct on reports and leaves
We need to be careful and always zero the whole br_ip struct when it is
used for matching since the rhashtable change. This patch fixes all the
places which didn't properly clear it which in turn might've caused
mismatches.
Thanks for the great bug report with reproducing steps and bisection.
Steps to reproduce (from the bug report):
ip link add br0 type bridge mcast_querier 1
ip link set br0 up
ip link add v2 type veth peer name v3
ip link set v2 master br0
ip link set v2 up
ip link set v3 up
ip addr add 3.0.0.2/24 dev v3
ip netns add test
ip link add v1 type veth peer name v1 netns test
ip link set v1 master br0
ip link set v1 up
ip -n test link set v1 up
ip -n test addr add 3.0.0.1/24 dev v1
# Multicast receiver
ip netns exec test socat
UDP4-RECVFROM:5588,ip-add-membership=224.224.224.224:3.0.0.1,fork -
Reported-by: liam.mcbirnie@boeing.com Fixes: 19e3a9c90c53 ("net: bridge: convert multicast to generic rhashtable") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge tag 'pm-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix up the intel_pstate driver after recent changes to prevent
it from printing pointless messages and update the turbostat utility
(mostly fixes and new hardware support).
Specifics:
- Make intel_pstate only load on Intel processors and prevent it from
printing pointless failure messages (Borislav Petkov).
- Update the turbostat utility:
* Assorted fixes (Ben Hutchings, Len Brown, Prarit Bhargava).
* Support for AMD Fam 17h (Zen) RAPL and package power (Calvin
Walton).
* Support for Intel Icelake and for systems with more than one die
per package (Len Brown).
* Cleanups (Len Brown)"
* tag 'pm-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq/intel_pstate: Load only on Intel hardware
tools/power turbostat: update version number
tools/power turbostat: Warn on bad ACPI LPIT data
tools/power turbostat: Add checks for failure of fgets() and fscanf()
tools/power turbostat: Also read package power on AMD F17h (Zen)
tools/power turbostat: Add support for AMD Fam 17h (Zen) RAPL
tools/power turbostat: Do not display an error on systems without a cpufreq driver
tools/power turbostat: Add Die column
tools/power turbostat: Add Icelake support
tools/power turbostat: Cleanup CNL-specific code
tools/power turbostat: Cleanup CC3-skip code
tools/power turbostat: Restore ability to execute in topology-order
Revert "r8169: use netif_receive_skb_list batching"
This reverts commit 6578229d4efb7ea6287861bfc2bd306140458e07.
netif_receive_skb_list() doesn't support GRO, therefore we may have
scenarios with decreased performance. See discussion here [0].
Dave Airlie [Fri, 5 Apr 2019 00:45:27 +0000 (10:45 +1000)]
Merge tag 'drm-intel-fixes-2019-04-04' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Only one fix for DSC (backoff after drm_modeset_lock deadlock)
and GVT's fixes including vGPU display plane size calculation,
shadow mm pin count, error recovery path for workload create
and one kerneldoc fix.
Linux currently disable ECN for incoming connections when the SYN
requests ECN and the IP header has ECT(0)/ECT(1) set, as some
networks were reportedly mangling the ToS byte, hence could later
trigger false congestion notifications.
RFC8311 §4.3 relaxes RFC3168's requirements such that ECT can be set
one TCP control packets (including SYNs). The main benefit of this
is the decreased probability of losing a SYN in a congested
ECN-capable network (i.e., it avoids the initial 1s timeout).
Additionally, this allows the development of newer TCP extensions,
such as AccECN.
This patch relaxes the previous check, by enabling ECN on incoming
connections using SYN+ECT if at least one bit of the reserved flags
of the TCP header is set. Such bit would indicate that the sender of
the SYN is using a newer TCP feature than what the host implements,
such as AccECN, and is thus implementing RFC8311. This enables
end-hosts not supporting such extensions to still negociate ECN, and
to have some of the benefits of using ECN on control packets.
Signed-off-by: Olivier Tilmans <olivier.tilmans@nokia-bell-labs.com> Suggested-by: Bob Briscoe <research@bobbriscoe.net> Cc: Koen De Schepper <koen.de_schepper@nokia-bell-labs.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Merge tag 'mfd-fixes-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull mfd fixes from Lee Jones:
- Fix failed reads due to enabled IRQs when suspended; twl-core
- Fix driver registration when using DT; sprd-sc27xx-spi
- Fix `make allyesconfig` on x86_64; SUN6I_PRCM
* tag 'mfd-fixes-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: sun6i-prcm: Allow to compile with COMPILE_TEST
mfd: sc27xx: Use SoC compatible string for PMIC devices
mfd: twl-core: Disable IRQ while suspended
net: devlink: add warning for ndo_get_port_parent_id set when not needed
Currently if the driver registers devlink port instance, he should set
the devlink port attributes as well. Then the devlink core is able to
obtain switch id itself, no need for driver to implement the ndo.
Once all drivers will implement devlink port registration, this ndo
should be removed. This warning guides new drivers to do things as
they should be done.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
dsa: pass switch ID through devlink_port_attrs_set()
Pass the switch ID down the to devlink through devlink_port_attrs_set()
so it can be used by devlink_compat_switch_id_get(). Leave
ndo_get_port_parent_id implementation only for legacy.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Remove implementation of get_port_parent_id ndo and rely on core calling
into devlink for the information directly.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
nfp: pass switch ID through devlink_port_attrs_set()
Pass the switch ID down the to devlink through devlink_port_attrs_set()
so it can be used by devlink_compat_switch_id_get().
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bnxt: move bp->switch_id initialization to PF probe
Currently the switch_id is being only initialized when switching eswitch
mode from "legacy" to "switchdev". However, nothing prevents the id to
be initialized from the very beginning. Physical ports can show it even
in "legacy" mode.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce devlink_compat_switch_id_get() helper which fills up switch_id
according to passed netdev pointer. Call it directly from
dev_get_port_parent_id() as a fallback when ndo_get_port_parent_id
is not defined for given netdev.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: devlink: convert devlink_port_attrs bools to bits
In order to save space in the struct, convert bools to bits.
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Fri, 5 Apr 2019 00:42:08 +0000 (10:42 +1000)]
Merge branch 'drm-fixes-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 5.1:
- Fix for pcie dpm
- Powerplay fixes for vega20
- Fix vbios display on reboot if driver display state is retained
- Gfx9 resume robustness fix
We can optimize the fdb convergence when a backup_port is present by not
immediately flushing the entries of the stopped port since traffic for
those entries will flow towards the backup_port.
There are 2 cases specifically that benefit most:
- when the stopped port comes up before the entries expire by themselves
- when there's an external entry refresh and they're kept while the
backup_port is operating (e.g. mlag)
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
ibmvnic: remove set but not used variable 'netdev'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/ibm/ibmvnic.c: In function '__ibmvnic_reset':
drivers/net/ethernet/ibm/ibmvnic.c:1971:21: warning: variable 'netdev' set but not used [-Wunused-but-set-variable]
It's never used since introduction in
commit ed651a10875f ("ibmvnic: Updated reset handling")
Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
ehea: remove set but not used variables 'epa' and 'cq_handle_ref'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/ibm/ehea/ehea_qmr.c: In function 'ehea_create_cq':
drivers/net/ethernet/ibm/ehea/ehea_qmr.c:127:7: warning: variable 'cq_handle_ref' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/ibm/ehea/ehea_qmr.c:126:15: warning: variable 'epa' set but not used [-Wunused-but-set-variable]
They are never used since commit 7a291083225a ("[PATCH] ehea: IBM eHEA Ethernet Device Driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
net: pasemi: remove set but not used variable 'cpyhdr'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/pasemi/pasemi_mac.c: In function 'pasemi_mac_queue_csdesc':
drivers/net/ethernet/pasemi/pasemi_mac.c:1358:29: warning: variable 'cpyhdr' set but not used [-Wunused-but-set-variable]
It's never used since commit 8d636d8bc5ff ("pasemi_mac: jumbo
frame support") and can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
net: use correct this_cpu primitive in dev_recursion_level
syzbot reports:
BUG: using __this_cpu_read() in preemptible code:
caller is dev_recursion_level include/linux/netdevice.h:3052 [inline]
__this_cpu_preempt_check+0x246/0x270 lib/smp_processor_id.c:47
dev_recursion_level include/linux/netdevice.h:3052 [inline]
ip6_skb_dst_mtu include/net/ip6_route.h:245 [inline]
I erronously downgraded a this_cpu_read to __this_cpu_read when
moving dev_recursion_level() around.
Reported-by: syzbot+51471b4aae195285a4a3@syzkaller.appspotmail.com Fixes: 97cdcf37b57e ("net: place xmit recursion in softnet data") Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hoang Le [Wed, 3 Apr 2019 06:05:04 +0000 (13:05 +0700)]
tipc: add NULL pointer check
skb somehow dequeued out of inputq before processing, it causes to
NULL pointer and kernel crashed.
Add checking skb valid before using.
Fixes: c55c8edafa9 ("tipc: smooth change between replicast and broadcast") Reported-by: Tuong Lien Tong <tuong.t.lien@dektech.com.au> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Recent changes to TC flower remove the requirement for rtnl lock when
accessing and modifying filters. Refcounts now ensure access and deletion
do not happen concurrently. However, the reoffload function which cycles
through all filters and replays them to registered hw drivers is not
protected.
Use the fl_get_next_filter() function to cycle the filters for reoffload
and ensure the ref taken by this function is put when done with each
filter.
Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Leech [Tue, 2 Apr 2019 22:06:12 +0000 (15:06 -0700)]
vlan: conditional inclusion of FCoE hooks to match netdevice.h and bnx2x
Way back in 3c9c36bcedd426f2be2826da43e5163de61735f7 the
ndo_fcoe_get_wwn pointer was switched from depending on CONFIG_FCOE to
CONFIG_LIBFCOE in order to allow building FCoE support into the bnx2x
driver and used by bnx2fc without including the generic software fcoe
module.
But, FCoE is generally used over an 802.1q VLAN, and the implementation
of ndo_fcoe_get_wwn in the 8021q module was not similarly changed. The
result is that if CONFIG_FCOE is disabled, then bnz2fc cannot make a
call to ndo_fcoe_get_wwn through the 8021q interface to the underlying
bnx2x interface. The bnx2fc driver then falls back to a potentially
different mapping of Ethernet MAC to Fibre Channel WWN, creating an
incompatibility with the fabric and target configurations when compared
to the WWNs used by pre-boot firmware and differently-configured
kernels.
So make the conditional inclusion of FCoE code in 8021q match the
conditional inclusion in netdevice.h
Signed-off-by: Chris Leech <cleech@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Batch of fixes to the existing BPF flow dissector API to support
calling BPF programs from the eth_get_headlen context (support for
latter is planned to be added in bpf-next), from Stanislav.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
* pm-tools:
tools/power turbostat: update version number
tools/power turbostat: Warn on bad ACPI LPIT data
tools/power turbostat: Add checks for failure of fgets() and fscanf()
tools/power turbostat: Also read package power on AMD F17h (Zen)
tools/power turbostat: Add support for AMD Fam 17h (Zen) RAPL
tools/power turbostat: Do not display an error on systems without a cpufreq driver
tools/power turbostat: Add Die column
tools/power turbostat: Add Icelake support
tools/power turbostat: Cleanup CNL-specific code
tools/power turbostat: Cleanup CC3-skip code
tools/power turbostat: Restore ability to execute in topology-order
David S. Miller [Thu, 4 Apr 2019 17:55:59 +0000 (10:55 -0700)]
Merge branch 'sch_cake-fixes'
Toke Høiland-Jørgensen says:
====================
sched: A few small fixes for sch_cake
Kevin noticed a few issues with the way CAKE reads the skb protocol and the IP
diffserv fields. This series fixes those two issues, and should probably go to
in 4.19 as well. However, the previous refactoring patch means they don't apply
as-is; I can send a follow-up directly to stable if that's OK with you?
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
sch_cake: Make sure we can write the IP header before changing DSCP bits
There is not actually any guarantee that the IP headers are valid before we
access the DSCP bits of the packets. Fix this using the same approach taken
in sch_dsmark.
Reported-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
sch_cake: Use tc_skb_protocol() helper for getting packet protocol
We shouldn't be using skb->protocol directly as that will miss cases with
hardware-accelerated VLAN tags. Use the helper instead to get the right
protocol number.
Reported-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
RFC8257 §3.5 explicitly states that "A DCTCP sender MUST react to
loss episodes in the same way as conventional TCP".
Currently, Linux DCTCP performs no cwnd reduction when losses
are encountered. Optionally, the dctcp_clamp_alpha_on_loss resets
alpha to its maximal value if a RTO happens. This behavior
is sub-optimal for at least two reasons: i) it ignores losses
triggering fast retransmissions; and ii) it causes unnecessary large
cwnd reduction in the future if the loss was isolated as it resets
the historical term of DCTCP's alpha EWMA to its maximal value (i.e.,
denoting a total congestion). The second reason has an especially
noticeable effect when using DCTCP in high BDP environments, where
alpha normally stays at low values.
This patch replace the clamping of alpha by setting ssthresh to
half of cwnd for both fast retransmissions and RTOs, at most once
per RTT. Consequently, the dctcp_clamp_alpha_on_loss module parameter
has been removed.
The table below shows experimental results where we measured the
drop probability of a PIE AQM (not applying ECN marks) at a
bottleneck in the presence of a single TCP flow with either the
alpha-clamping option enabled or the cwnd halving proposed by this
patch. Results using reno or cubic are given for comparison.
We see that, without halving its cwnd for all source of losses,
DCTCP drives the AQM to large drop probabilities in order to keep
the queue length under control (i.e., it repeatedly faces RTOs).
Instead, if DCTCP reacts to all source of losses, it can then be
controlled by the AQM using similar drop levels than cubic or reno.
Signed-off-by: Koen De Schepper <koen.de_schepper@nokia-bell-labs.com> Signed-off-by: Olivier Tilmans <olivier.tilmans@nokia-bell-labs.com> Cc: Bob Briscoe <research@bobbriscoe.net> Cc: Lawrence Brakmo <brakmo@fb.com> Cc: Florian Westphal <fw@strlen.de> Cc: Daniel Borkmann <borkmann@iogearbox.net> Cc: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Andrew Shewmaker <agshew@gmail.com> Cc: Glenn Judd <glenn.judd@morganstanley.com> Acked-by: Florian Westphal <fw@strlen.de> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
net: bridge: update multicast stats from maybe_deliver()
Simplify this code by updating bridge multicast stats from
maybe_deliver().
Note that commit 6db6f0eae605 ("bridge: multicast to unicast"), in case
the port flag BR_MULTICAST_TO_UNICAST is set, never updates the previous
port pointer, therefore it is always going to be different from the
existing port in this deduplicated list iteration.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched: act_sample: fix divide by zero in the traffic path
the control path of 'sample' action does not validate the value of 'rate'
provided by the user, but then it uses it as divisor in the traffic path.
Validate it in tcf_sample_init(), and return -EINVAL with a proper extack
message in case that value is zero, to fix a splat with the script below:
# tc f a dev test0 egress matchall action sample rate 0 group 1 index 2
# tc -s a s action sample
total acts 1
action order 0: sample rate 1/0 group 1 pipe
index 2 ref 1 bind 1 installed 19 sec used 19 sec
Action statistics:
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
# ping 192.0.2.1 -I test0 -c1 -q
net: thunderx: fix NULL pointer dereference in nicvf_open/nicvf_stop
When a bpf program is uploaded, the driver computes the number of
xdp tx queues resulting in the allocation of additional qsets.
Starting from commit '2ecbe4f4a027 ("net: thunderx: replace global
nicvf_rx_mode_wq work queue for all VFs to private for each of them")'
the driver runs link state polling for each VF resulting in the
following NULL pointer dereference:
Fix it by checking nicvf_rx_mode_wq pointer in nicvf_open and nicvf_stop
Fixes: 2ecbe4f4a027 ("net: thunderx: replace global nicvf_rx_mode_wq work queue for all VFs to private for each of them") Fixes: 2c632ad8bc74 ("net: thunderx: move link state polling function to VF") Reported-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Tested-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yonglong Liu [Thu, 4 Apr 2019 08:46:47 +0000 (16:46 +0800)]
net: hns: Fix sparse: some warnings in HNS drivers
There are some sparse warnings in the HNS drivers:
warning: incorrect type in assignment (different address spaces)
expected void [noderef] <asn:2> *io_base
got void *vaddr
warning: cast removes address space '<asn:2>' of expression
[...]
Add __iomem and change all the u8 __iomem to void __iomem to
fix these kind of warnings.
warning: incorrect type in argument 1 (different address spaces)
expected void [noderef] <asn:2> *base
got unsigned char [usertype] *base_addr
warning: cast to restricted __le16
warning: incorrect type in assignment (different base types)
expected unsigned int [usertype] tbl_tcam_data_high
got restricted __le32 [usertype]
warning: cast to restricted __le32
[...]
These variables used u32/u16 as their type, and finally as a
parameter of writel(), writel() will do the cpu_to_le32 coversion
so remove the little endian covert code to fix these kind of warnings.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The tx ring buffer map when xmit and unmap when xmit done. So in
hnae_init_ring() did not map tx ring buffer, but in hnae_fini_ring()
have a unmap operation for tx ring buffer, which is already unmapped
when xmit done, than cause this WARNING.
The hnae_alloc_buffers() is called in hnae_init_ring(),
so the hnae_free_buffers() should be in hnae_fini_ring(), not in
hnae_free_desc().
In hnae_fini_ring(), adds a check is_rx_ring() as in hnae_init_ring().
When the ring buffer is tx ring, adds a piece of code to ensure that
the tx ring is unmap.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yonglong Liu [Thu, 4 Apr 2019 08:46:45 +0000 (16:46 +0800)]
net: hns: fix ICMP6 neighbor solicitation messages discard problem
ICMP6 neighbor solicitation messages will be discard by the Hip06
chips, because of not setting forwarding pool. Enable promisc mode
has the same problem.
This patch fix the wrong forwarding table configs for the multicast
vague matching when enable promisc mode, and add forwarding pool
for the forwarding table.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Every time the call trace is not the same, but the overwrite address
is always the same:
Unable to handle kernel paging request at virtual address 0000000200000040
The root cause is, when write the reg XGMAC_MAC_TX_LF_RF_CONTROL_REG,
didn't use the io_base offset.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yonglong Liu [Thu, 4 Apr 2019 08:46:43 +0000 (16:46 +0800)]
net: hns: Use NAPI_POLL_WEIGHT for hns driver
When the HNS driver loaded, always have an error print:
"netif_napi_add() called with weight 256"
This is because the kernel checks the NAPI polling weights
requested by drivers and it prints an error message if a driver
requests a weight bigger than 64.
So use NAPI_POLL_WEIGHT to fix it.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Liubin Shu [Thu, 4 Apr 2019 08:46:42 +0000 (16:46 +0800)]
net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw()
This patch is trying to fix the issue due to:
[27237.844750] BUG: KASAN: use-after-free in hns_nic_net_xmit_hw+0x708/0xa18[hns_enet_drv]
After hnae_queue_xmit() in hns_nic_net_xmit_hw(), can be
interrupted by interruptions, and than call hns_nic_tx_poll_one()
to handle the new packets, and free the skb. So, when turn back to
hns_nic_net_xmit_hw(), calling skb->len will cause use-after-free.
This patch update tx ring statistics in hns_nic_tx_poll_one() to
fix the bug.
Signed-off-by: Liubin Shu <shuliubin@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: hns3: split function hnae3_match_n_instantiate()
The function hnae3_match_n_instantiate() was called both by
initializing or uninitializing client. For uninitializing, the
return value was never used.
To make it more clear, this patch splits it to two functions,
hnae3_init_client_instance() and hnae3_uninit_client_instance().
Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan [Thu, 4 Apr 2019 08:17:58 +0000 (16:17 +0800)]
net: hns3: modify HNS3_NIC_STATE_INITED flag in hns3_reset_notify_uninit_enet
In the hns3_reset_notify_uninit_enet() HNS3_NIC_STATE_INITED flag
should be checked and cleared firstly.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan [Thu, 4 Apr 2019 08:17:57 +0000 (16:17 +0800)]
net: hns3: prevent change MTU when resetting
When resetting, the changing of MTU is not allowed, so this patch
adds checking reset status in hns3_nic_change_mtu() to do that.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan [Thu, 4 Apr 2019 08:17:56 +0000 (16:17 +0800)]
net: hns3: check resetting status in hns3_get_stats()
hns3_get_stats() should check the resetting status firstly,
since the device will be reinitialized when resetting. If the
reset has not completed, the hns3_get_stats() may access
invalid memory.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: hns3: add protect when handling mac addr list
It used netdev->uc and netdev->mc list in function
hns3_recover_hw_addr() and hns3_remove_hw_addr().
We should add protect for them.
Fixes: f05e21097121 ("net: hns3: Clear mac vlan table entries when unload driver or function reset") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan [Thu, 4 Apr 2019 08:17:54 +0000 (16:17 +0800)]
net: hns3: simplify hclgevf_cmd_csq_clean
csq is used as a ring buffer, the value of the desc will be replaced
in next use. This patch removes the unnecessary memset, and just
updates the next_to_clean.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yunsheng Lin [Thu, 4 Apr 2019 08:17:53 +0000 (16:17 +0800)]
net: hns3: minor optimization for datapath
This patch adds a likely case for hns3_fill_desc and
limits the local variables' scope as much as possible,
also avoid div operation when the tqp_vector->num_tqps
is one.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yunsheng Lin [Thu, 4 Apr 2019 08:17:52 +0000 (16:17 +0800)]
net: hns3: minor optimization for ring_space
This patch optimizes the ring_space by calculating the
ring space without calling ring_dist.
Also ring_dist is only used by ring_space, so this patch
removes it when it is no longer used.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li [Thu, 4 Apr 2019 08:17:51 +0000 (16:17 +0800)]
net: hns3: return 0 and print warning when hit duplicate MAC
When set 2 same MAC to different function of one port, IMP
will return error as the later one may modify the origin one.
This will cause bond fail for 2 VFs of one port.
Driver just print warning and return 0 with this patch, so
if set same MAC address, it will return 0 but do not really
configure HW.
Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: hns3: modify the VF network port media type acquisition method
Method for obtaining the media type of the VF network port periodically,
regular tasks will not run until the network port UP. When the network
port is DOWN, the network port cannot obtain the media type.
Modifies the media type obtained when initializing the VF network port.
Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yonglong Liu [Thu, 4 Apr 2019 08:17:49 +0000 (16:17 +0800)]
net: hns3: reduce resources use in kdump kernel
When the kdump kernel started, the HNS3 driver fail to register:
[14.753340] hns3 0000:7d:00.0: Alloc umv space failed, want 512, get 0
[14.795034] hns3 0000:7d:00.0: add uc mac address fail, ret =-22.
By default, the HNS3 driver will use about 512M memory, but
usually the reserved memory of kdump kernel is 576M, so the HNS3
driver fail to register. This patch reduces the memory use in
kdump kernel to about 16M.
And when the kdump kernel starts, we must clear ucast mac address
first to avoid add fail.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li [Thu, 4 Apr 2019 08:17:48 +0000 (16:17 +0800)]
net: hns3: check 1000M half for hns3_ethtool_ops.set_link_ksettings
Hip08 SOC does not support 1000M half, this patch adds 1000M half
check for hns3_ethtool_ops.set_link_ksettings, so the user can not
set 1000M half by ethtool.
Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Qian Cai [Thu, 4 Apr 2019 10:54:41 +0000 (11:54 +0100)]
mm/compaction.c: abort search if isolation fails
Running LTP oom01 in a tight loop or memory stress testing put the system
in a low-memory situation could triggers random memory corruption like
page flag corruption below due to in fast_isolate_freepages(), if
isolation fails, next_search_order() does not abort the search immediately
could lead to improper accesses.
Link: http://lkml.kernel.org/r/20190320192648.52499-1-cai@lca.pw Fixes: dbe2d4e4f12e ("mm, compaction: round-robin the order while searching the free lists for a target") Signed-off-by: Qian Cai <cai@lca.pw> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>