percpu_counter_add() uses a default batch size which is quite big
on platforms with 256 cpus. (2*256 -> 512)
This means dst_entries_get_fast() can be off by +/- 2*(nr_cpus^2)
(131072 on servers with 256 cpus)
Reduce the batch size to something more reasonable, and
add logic to ip6_dst_gc() to call dst_entries_get_slow()
before calling the _very_ expensive fib6_run_gc() function.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Now sch_fq has horizon feature, we want to allow QUIC/UDP applications
to use EDT model so that pacing can be offloaded to the kernel (sch_fq)
or the NIC.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
bonding: report transmit status to callers
First patches cleanup netpoll, and make sure it provides tx status to its users.
Last patch changes bonding to not pretend packets were sent without error.
By providing more accurate status, TCP stack can avoid adding more
packets if the slave qdisc is already full.
This came while testing latest horizon feature in sch_fq, with
very low pacing rate flows, but should benefit hosts under stress.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, bonding always returns NETDEV_TX_OK to its caller.
It is worth trying to be more accurate : TCP for instance
can have different recovery strategies if it can have more
precise status, if packet was dropped by slave qdisc.
This is especially important when host is under stress.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
netpoll_send_skb() callers seem to leak skb if
the np pointer is NULL. While this should not happen, we
can make the code more robust.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some callers want to know if the packet has been sent or
dropped, to inform upper stacks.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to inline this helper, as we intend to add more
code in this function.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
netpoll_send_skb_on_dev() can get the device pointer directly from np->dev
Rename it to __netpoll_send_skb()
Following patch will move netpoll_send_skb() out-of-line.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The unsigned variable val is being checked for an error by checking
if it is less than zero. This can never occur because val is unsigned.
Fix this by making val a plain int.
Addresses-Coverity: ("Unsigned compared against zero")
Fixes: bdbdac7649 ("ethtool: provide UAPI for PHY master/slave configuration.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes gcc '-Wunused-but-set-variable' warning:
net/smc/smc_llc.c: In function 'smc_llc_cli_conf_link':
net/smc/smc_llc.c:753:31: warning:
variable 'del_llc' set but not used [-Wunused-but-set-variable]
struct smc_llc_msg_del_link *del_llc;
^
net/smc/smc_llc.c: In function 'smc_llc_process_srv_delete_link':
net/smc/smc_llc.c:1311:33: warning:
variable 'del_llc_resp' set but not used [-Wunused-but-set-variable]
struct smc_llc_msg_del_link *del_llc_resp;
^
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
so tcp_is_sack/reno checks are removed from tcp_mark_head_lost.
Signed-off-by: zhang kai <zhangkaiheb@126.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The NL_SET_ERR_MSG_MOD macro is used to report a string describing an
error message to userspace via the netlink extended ACK structure. It
should not have a trailing newline.
Add a cocci script which catches cases where the newline marker is
present. Using this script, fix the handful of cases which accidentally
included a trailing new line.
I couldn't figure out a way to get a patch mode working, so this script
only implements context, report, and org.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Grygorii Strashko says:
====================
net: ethernet: ti: am65x-cpts: follow up dt bindings update
This series is follow update for TI A65x/J721E Common platform time sync (CPTS)
driver [1] to implement DT bindings review comments from
Rob Herring <robh@kernel.org> [2].
- "reg" and "compatible" properties are made required for CPTS DT nodes which
also required to change K3 CPSW driver to use of_platform_device_create()
instead of of_platform_populate() for proper CPTS and MDIO initialization
- minor DT bindings format changes
- K3 CPTS example added to K3 MCU CPSW bindings
[1] https://lwn.net/Articles/819313/
[2] https://lwn.net/ml/linux-kernel/20200505040419.GA8509@bogus/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Update CPTS node following DT binding update:
- add reg and compatible properties
- fix node name
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch follows K3 CPTS review comments from Rob Herring
<robh@kernel.org>.
- "reg" and "compatible" properties are required now
- minor format changes
- K3 CPTS example added to K3 MCU CPSW bindings
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MCU CPSW expected to populate only MDIO device, but follow up patches
will add "compatible" property to the MCU CPSW CPTS node which will cause
creation of CPTS device and MCU CPSW init failure. Hence, switch to use
of_platform_device_create() instead of of_platform_populate() for MDIO
device population.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Taehee Yoo says:
====================
hsr: hsr code refactoring
There are some unnecessary routine in the hsr module.
This patch removes these routines.
The first patch removes incorrect comment.
The second patch removes unnecessary WARN_ONCE() macro.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Create an independent function that takes a particular frame queue and
an array of frame descriptors and tries to enqueue them until it hits
the maximum number fo retries. The same function will be used in the
next patch also on the XDP_TX path.
Also, create the dpaa2_eth_xdp_fds structure to incorporate the array of
FDs as well as the number of FDs already populated.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When VLAN frame is being sent, hsr calls WARN_ONCE() because hsr doesn't
support VLAN. But using WARN_ONCE() is overdoing.
Using netdev_warn_once() is enough.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mask the consumer index before using it. Without this, we would be
writing frame descriptors beyond the ring size supported by the QBMAN
block.
Fixes: 3b2abda7d2 ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add some verbiage describing how the hardware features of the switch are
exposed to users through tc-flower.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Restrict the TTEthernet hardware support on this switch to operate as
closely as possible to IEEE 802.1Qci as possible. This means that it can
perform PTP-time-based ingress admission control on streams identified
by {DMAC, VID, PCP}, which is useful when trying to ensure the
determinism of traffic scheduled via IEEE 802.1Qbv.
The oddity comes from the fact that in hardware (and in TTEthernet at
large), virtual links always need a full-blown action, including not
only the type of policing, but also the list of destination ports. So in
practice, a single tc-gate action will result in all packets getting
dropped. Additional actions (either "trap" or "redirect") need to be
specified in the same filter rule such that the conforming packets are
actually forwarded somewhere.
Apart from the VL Lookup, Policing and Forwarding tables which need to
be programmed for each flow (virtual link), the Schedule engine also
needs to be told to open/close the admission gates for each individual
virtual link. A fairly accurate (and detailed) description of how that
works is already present in sja1105_tas.c, since it is already used to
trigger the egress gates for the tc-taprio offload (IEEE 802.1Qbv). Key
point here, we remember that the schedule engine supports 8
"subschedules" (execution threads that iterate through the global
schedule in parallel, and that no 2 hardware threads must execute a
schedule entry at the same time). For tc-taprio, each egress port used
one of these 8 subschedules, leaving a total of 4 subschedules unused.
In principle we could have allocated 1 subschedule for the tc-gate
offload of each ingress port, but actually the schedules of all virtual
links installed on each ingress port would have needed to be merged
together, before they could have been programmed to hardware. So
simplify our life and just merge the entire tc-gate configuration, for
all virtual links on all ingress ports, into a single subschedule. Be
sure to check that against the usual hardware scheduling conflicts, and
program it to hardware alongside any tc-taprio subschedule that may be
present.
The following scenarios were tested:
1. Quantitative testing:
tc qdisc add dev swp2 clsact
tc filter add dev swp2 ingress flower skip_sw \
dst_mac 42:be:24:9b:76:20 \
action gate index 1 base-time 0 \
sched-entry OPEN 1200 -1 -1 \
sched-entry CLOSE 1200 -1 -1 \
action trap
ping 192.168.1.2 -f
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
.............................
--- 192.168.1.2 ping statistics ---
948 packets transmitted, 467 received, 50.7384% packet loss, time 9671ms
2. Qualitative testing (with a phase-aligned schedule - the clocks are
synchronized by ptp4l, not shown here):
Receiver (sja1105):
tc qdisc add dev swp2 clsact
now=$(phc_ctl /dev/ptp1 get | awk '/clock time is/ {print $5}') && \
sec=$(echo $now | awk -F. '{print $1}') && \
base_time="$(((sec + 2) * 1000000000))" && \
echo "base time ${base_time}"
tc filter add dev swp2 ingress flower skip_sw \
dst_mac 42:be:24:9b:76:20 \
action gate base-time ${base_time} \
sched-entry OPEN 60000 -1 -1 \
sched-entry CLOSE 40000 -1 -1 \
action trap
Sender (enetc):
now=$(phc_ctl /dev/ptp0 get | awk '/clock time is/ {print $5}') && \
sec=$(echo $now | awk -F. '{print $1}') && \
base_time="$(((sec + 2) * 1000000000))" && \
echo "base time ${base_time}"
tc qdisc add dev eno0 parent root taprio \
num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
base-time ${base_time} \
sched-entry S 01 50000 \
sched-entry S 00 50000 \
flags 2
ping -A 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
...
^C
--- 192.168.1.1 ping statistics ---
1425 packets transmitted, 1424 packets received, 0% packet loss
round-trip min/avg/max = 0.322/0.361/0.990 ms
And just for comparison, with the tc-taprio schedule deleted:
ping -A 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
...
^C
--- 192.168.1.1 ping statistics ---
33 packets transmitted, 19 packets received, 42% packet loss
round-trip min/avg/max = 0.336/0.464/0.597 ms
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement tc-flower offloads for redirect, trap and drop using
non-critical virtual links.
Commands which were tested to work are:
# Send frames received on swp2 with a DA of 42:be:24:9b:76:20 to the
# CPU and to swp3. This type of key (DA only) when the port's VLAN
# awareness state is off.
tc qdisc add dev swp2 clsact
tc filter add dev swp2 ingress flower skip_sw dst_mac 42:be:24:9b:76:20 \
action mirred egress redirect dev swp3 \
action trap
# Drop frames received on swp2 with a DA of 42:be:24:9b:76:20, a VID
# of 100 and a PCP of 0.
tc filter add dev swp2 ingress protocol 802.1Q flower skip_sw \
dst_mac 42:be:24:9b:76:20 vlan_id 100 vlan_prio 0 action drop
Under the hood, all rules match on DMAC, VID and PCP, but when VLAN
filtering is disabled, those are set internally by the driver to the
port-based defaults. Because we would be put in an awkward situation if
the user were to change the VLAN filtering state while there are active
rules (packets would no longer match on the specified keys), we simply
deny changing vlan_filtering unless the list of flows offloaded via
virtual links is empty. Then the user can re-add new rules.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Virtual links are a sja1105 hardware concept of executing various flow
actions based on a key extracted from the frame's DMAC, VID and PCP.
Currently the tc-flower offload code supports only parsing the DMAC if
that is the broadcast MAC address, and the VLAN PCP. Extract the key
parsing logic from the L2 policers functionality and move it into its
own function, after adding extra logic for matching on any DMAC and VID.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds the register definitions for the:
- VL Lookup Table
- VL Policing Table
- VL Forwarding Table
- VL Forwarding Parameters Table
These are needed in order to perform TTEthernet operations: QoS
classification, flow-based policing and/or frame redirecting with the
switch.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As its implementation shows, this is synonimous with calling
dsa_slave_dev_check followed by dsa_slave_to_port, so it is quite simple
already and provides functionality which is already there.
However there is now a need for these functions outside dsa_priv.h, for
example in drivers that perform mirroring and redirection through
tc-flower offloads (they are given raw access to the flow_cls_offload
structure), where they need to call this function on act->dev.
But simply exporting dsa_slave_to_port would make it non-inline and
would result in an extra function call in the hotpath, as can be seen
for example in sja1105:
Before:
000006dc <sja1105_xmit>:
{
6dc: e92d4ff0 push {r4, r5, r6, r7, r8, r9, sl, fp, lr}
6e0: e1a04000 mov r4, r0
6e4: e591958c ldr r9, [r1, #1420] ; 0x58c <- Inline dsa_slave_to_port
6e8: e1a05001 mov r5, r1
6ec: e24dd004 sub sp, sp, #4
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
6f0: e1c901d8 ldrd r0, [r9, #24]
6f4: ebfffffe bl 0 <dsa_8021q_tx_vid>
6f4: R_ARM_CALL dsa_8021q_tx_vid
u8 pcp = netdev_txq_to_tc(netdev, queue_mapping);
6f8: e1d416b0 ldrh r1, [r4, #96] ; 0x60
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
6fc: e1a08000 mov r8, r0
After:
000006e4 <sja1105_xmit>:
{
6e4: e92d4ff0 push {r4, r5, r6, r7, r8, r9, sl, fp, lr}
6e8: e1a04000 mov r4, r0
6ec: e24dd004 sub sp, sp, #4
struct dsa_port *dp = dsa_slave_to_port(netdev);
6f0: e1a00001 mov r0, r1
{
6f4: e1a05001 mov r5, r1
struct dsa_port *dp = dsa_slave_to_port(netdev);
6f8: ebfffffe bl 0 <dsa_slave_to_port>
6f8: R_ARM_CALL dsa_slave_to_port
6fc: e1a09000 mov r9, r0
u16 tx_vid = dsa_8021q_tx_vid(dp->ds, dp->index);
700: e1c001d8 ldrd r0, [r0, #24]
704: ebfffffe bl 0 <dsa_8021q_tx_vid>
704: R_ARM_CALL dsa_8021q_tx_vid
Because we want to avoid possible performance regressions, introduce
this new function which is designed to be public.
Suggested-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove duplicate headers which are included twice.
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of patches for v5.8. Changes all over, ath10k apparently
seeing most new features this time. rtw88 also had lots of changes due
to preparation for new hardware support.
In this pull request there's also a new macro to include/linux/iopoll:
read_poll_timeout_atomic(). This is needed by rtw88 for atomic
polling.
Major changes:
ath11k
* add debugfs file for testing ADDBA and DELBA
* add 802.11 encapsulation offload on hardware support
* add htt_peer_stats_reset debugfs file
ath10k
* enable VHT160 and VHT80+80 modes
* enable radar detection in secondary segment
* sdio: disable TX complete indication to improve throughput
* sdio: decrease power consumption
* sdio: add HTT TX bundle support to increase throughput
* sdio: add rx bitrate reporting
ath9k
* improvements to AR9002 calibration logic
carl9170
* remove buggy P2P_GO support
p54usb
* add support for AirVasT USB stick
rtw88
* add support for antenna configuration
ti wlcore
* add support for AES_CMAC cipher
iwlwifi
* support for a few new FW API versions
* new hw configs
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Merge tag 'wireless-drivers-next-2020-05-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.8
First set of patches for v5.8. Changes all over, ath10k apparently
seeing most new features this time. rtw88 also had lots of changes due
to preparation for new hardware support.
In this pull request there's also a new macro to include/linux/iopoll:
read_poll_timeout_atomic(). This is needed by rtw88 for atomic
polling.
Major changes:
ath11k
* add debugfs file for testing ADDBA and DELBA
* add 802.11 encapsulation offload on hardware support
* add htt_peer_stats_reset debugfs file
ath10k
* enable VHT160 and VHT80+80 modes
* enable radar detection in secondary segment
* sdio: disable TX complete indication to improve throughput
* sdio: decrease power consumption
* sdio: add HTT TX bundle support to increase throughput
* sdio: add rx bitrate reporting
ath9k
* improvements to AR9002 calibration logic
carl9170
* remove buggy P2P_GO support
p54usb
* add support for AirVasT USB stick
rtw88
* add support for antenna configuration
ti wlcore
* add support for AES_CMAC cipher
iwlwifi
* support for a few new FW API versions
* new hw configs
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Manivannan Sadhasivam says:
====================
Add QRTR MHI client driver
Here is the series adding MHI client driver support to Qualcomm IPC router
protocol. MHI is a newly added bus to kernel which is used to communicate to
external modems over a physical interface like PCI-E. This driver is used to
transfer the QMI messages between the host processor and external modems over
the "IPCR" channel.
For QRTR, this driver is just another driver acting as a transport layer like
SMD.
Currently this driver is needed to control the QCA6390 WLAN device from ath11k.
The ath11k MHI controller driver will take care of booting up QCA6390 and
bringing it to operating state. Later, this driver will be used to transfer QMI
messages over the MHI-IPCR channel.
The second patch of this series removes the ARCH_QCOM dependency for QRTR. This
is needed because the QRTR driver will be used with x86 machines as well to talk
to devices like QCA6390.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
IPC Router protocol is also used by external modems for exchanging the QMI
messages. Hence, it doesn't always depend on Qualcomm platforms. One such
instance is the QCA6390 WLAN device connected to x86 machine.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
MHI is the transport layer used for communicating to the external modems.
Hence, this commit adds MHI transport layer support to QRTR for
transferring the QMI messages over IPC Router.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The VIA Rhine Ethernet interface is only present on PCI devices or
VIA/WonderMedia VT8500/WM85xx SoCs. Add platform dependencies to the
VIA_RHINE config symbol, to avoid asking the user about it when
configuring a kernel without PCI or VT8500/WM85xx support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
'Dan Carpenter' reported:
This code frees "sfi" and then dereferences it on the next line:
> kfree(sfi);
> clear_bit(sfi->index, epsfp.psfp_sfi_bitmap);
This "sfi->index" should be "index".
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function always return 0 now, we can make it return void to
simplify the code. This fixes the following coccicheck warning:
drivers/net/ethernet/microchip/encx24j600.c:609:5-8: Unneeded variable:
"ret". Return "0" on line 653
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following coccicheck warning:
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c:1396:5-8: Unneeded
variable: "err". Return "0" on line 1411
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function always return 0 now, we can make it return void to
simplify the code. This fixes the following coccicheck warning:
drivers/net/ethernet/dec/tulip/de4x5.c:3908:11-17: Unneeded variable:
"status". Return "0" on line 3912
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This code has been marked dead for nearly 10 years. Remove it.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This function is dead for more than 10 years. Remove it.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix sparse warnings:
drivers/net/phy/mdio-bcm-iproc.c:182:5: warning:
symbol 'iproc_mdio_resume' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Fix reference count leaks in various parts of batman-adv, from Xiyu
Yang.
2) Update NAT checksum even when it is zero, from Guillaume Nault.
3) sk_psock reference count leak in tls code, also from Xiyu Yang.
4) Sanity check TCA_FQ_CODEL_DROP_BATCH_SIZE netlink attribute in
fq_codel, from Eric Dumazet.
5) Fix panic in choke_reset(), also from Eric Dumazet.
6) Fix VLAN accel handling in bnxt_fix_features(), from Michael Chan.
7) Disallow out of range quantum values in sch_sfq, from Eric Dumazet.
8) Fix crash in x25_disconnect(), from Yue Haibing.
9) Don't pass pointer to local variable back to the caller in
nf_osf_hdr_ctx_init(), from Arnd Bergmann.
10) Wireguard should use the ECN decap helper functions, from Toke
Høiland-Jørgensen.
11) Fix command entry leak in mlx5 driver, from Moshe Shemesh.
12) Fix uninitialized variable access in mptcp's
subflow_syn_recv_sock(), from Paolo Abeni.
13) Fix unnecessary out-of-order ingress frame ordering in macsec, from
Scott Dial.
14) IPv6 needs to use a global serial number for dst validation just
like ipv4, from David Ahern.
15) Fix up PTP_1588_CLOCK deps, from Clay McClure.
16) Missing NLM_F_MULTI flag in gtp driver netlink messages, from
Yoshiyuki Kurauchi.
17) Fix a regression in that dsa user port errors should not be fatal,
from Florian Fainelli.
18) Fix iomap leak in enetc driver, from Dejin Zheng.
19) Fix use after free in lec_arp_clear_vccs(), from Cong Wang.
20) Initialize protocol value earlier in neigh code paths when
generating events, from Roman Mashak.
21) netdev_update_features() must be called with RTNL mutex in macsec
driver, from Antoine Tenart.
22) Validate untrusted GSO packets even more strictly, from Willem de
Bruijn.
23) Wireguard decrypt worker needs a cond_resched(), from Jason
Donenfeld.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (111 commits)
net: flow_offload: skip hw stats check for FLOW_ACTION_HW_STATS_DONT_CARE
MAINTAINERS: put DYNAMIC INTERRUPT MODERATION in proper order
wireguard: send/receive: use explicit unlikely branch instead of implicit coalescing
wireguard: selftests: initalize ipv6 members to NULL to squelch clang warning
wireguard: send/receive: cond_resched() when processing worker ringbuffers
wireguard: socket: remove errant restriction on looping to self
wireguard: selftests: use normal kernel stack size on ppc64
net: ethernet: ti: am65-cpsw-nuss: fix irqs type
ionic: Use debugfs_create_bool() to export bool
net: dsa: Do not leave DSA master with NULL netdev_ops
net: dsa: remove duplicate assignment in dsa_slave_add_cls_matchall_mirred
net: stricter validation of untrusted gso packets
seg6: fix SRH processing to comply with RFC8754
net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms
net: dsa: ocelot: the MAC table on Felix is twice as large
net: dsa: sja1105: the PTP_CLK extts input reacts on both edges
selftests: net: tcp_mmap: fix SO_RCVLOWAT setting
net: hsr: fix incorrect type usage for protocol variable
net: macsec: fix rtnl locking issue
net: mvpp2: cls: Prevent buffer overflow in mvpp2_ethtool_cls_rule_del()
...
This patch adds FLOW_ACTION_HW_STATS_DONT_CARE which tells the driver
that the frontend does not need counters, this hw stats type request
never fails. The FLOW_ACTION_HW_STATS_DISABLED type explicitly requests
the driver to disable the stats, however, if the driver cannot disable
counters, it bails out.
TCA_ACT_HW_STATS_* maintains the 1:1 mapping with FLOW_ACTION_HW_STATS_*
except by disabled which is mapped to FLOW_ACTION_HW_STATS_DISABLED
(this is 0 in tc). Add tc_act_hw_stats() to perform the mapping between
TCA_ACT_HW_STATS_* and FLOW_ACTION_HW_STATS_*.
Fixes: 319a1d1947 ("flow_offload: check for basic action hw stats type")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 9b038086f0 ("docs: networking: convert DIM to RST") added a new
file entry to DYNAMIC INTERRUPT MODERATION to the end, and not following
alphabetical order.
So, ./scripts/checkpatch.pl -f MAINTAINERS complains:
WARNING: Misordered MAINTAINERS entry - list file patterns in alphabetic
order
#5966: FILE: MAINTAINERS:5966:
+F: lib/dim/
+F: Documentation/networking/net_dim.rst
Reorder the file entries to keep MAINTAINERS nicely ordered.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason A. Donenfeld says:
====================
wireguard fixes for 5.7-rc5
With Ubuntu and Debian having backported this into their kernels, we're
finally seeing testing from places we hadn't seen prior, which is nice.
With that comes more fixes:
1) The CI for PPC64 was running with extremely small stacks for 64-bit,
causing spurious crashes in surprising places.
2) There's was an old leftover routing loop restriction, which no longer
makes sense given the queueing architecture, and was causing problems
for people who really did want nested routing.
3) Not yielding our kthread on CONFIG_PREEMPT_VOLUNTARY systems caused
RCU stalls and other issues, reported by Wang Jian, with the fix
suggested by Sultan Alsawaf.
4) Clang spewed warnings in a selftest for CONFIG_IPV6=n, reported by
Arnd Bergmann.
5) A complicated if statement was simplified to an assignment while also
making the likely/unlikely hinting more correct and simple, and
increasing readability, suggested by Sultan.
Patches (2) and (3) have Fixes: lines and are probably good candidates
for stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It's very unlikely that send will become true. It's nearly always false
between 0 and 120 seconds of a session, and in most cases becomes true
only between 120 and 121 seconds before becoming false again. So,
unlikely(send) is clearly the right option here.
What happened before was that we had this complex boolean expression
with multiple likely and unlikely clauses nested. Since this is
evaluated left-to-right anyway, the whole thing got converted to
unlikely. So, we can clean this up to better represent what's going on.
The generated code is the same.
Suggested-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Without setting these to NULL, clang complains in certain
configurations that have CONFIG_IPV6=n:
In file included from drivers/net/wireguard/ratelimiter.c:223:
drivers/net/wireguard/selftest/ratelimiter.c:173:34: error: variable 'skb6' is uninitialized when used here [-Werror,-Wuninitialized]
ret = timings_test(skb4, hdr4, skb6, hdr6, &test_count);
^~~~
drivers/net/wireguard/selftest/ratelimiter.c:123:29: note: initialize the variable 'skb6' to silence this warning
struct sk_buff *skb4, *skb6;
^
= NULL
drivers/net/wireguard/selftest/ratelimiter.c:173:40: error: variable 'hdr6' is uninitialized when used here [-Werror,-Wuninitialized]
ret = timings_test(skb4, hdr4, skb6, hdr6, &test_count);
^~~~
drivers/net/wireguard/selftest/ratelimiter.c:125:22: note: initialize the variable 'hdr6' to silence this warning
struct ipv6hdr *hdr6;
^
We silence this warning by setting the variables to NULL as the warning
suggests.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Users with pathological hardware reported CPU stalls on CONFIG_
PREEMPT_VOLUNTARY=y, because the ringbuffers would stay full, meaning
these workers would never terminate. That turned out not to be okay on
systems without forced preemption, which Sultan observed. This commit
adds a cond_resched() to the bottom of each loop iteration, so that
these workers don't hog the core. Note that we don't need this on the
napi poll worker, since that terminates after its budget is expended.
Suggested-by: Sultan Alsawaf <sultan@kerneltoast.com>
Reported-by: Wang Jian <larkwang@gmail.com>
Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's already possible to create two different interfaces and loop
packets between them. This has always been possible with tunnels in the
kernel, and isn't specific to wireguard. Therefore, the networking stack
already needs to deal with that. At the very least, the packet winds up
exceeding the MTU and is discarded at that point. So, since this is
already something that happens, there's no need to forbid the not very
exceptional case of routing a packet back to the same interface; this
loop is no different than others, and we shouldn't special case it, but
rather rely on generic handling of loops in general. This also makes it
easier to do interesting things with wireguard such as onion routing.
At the same time, we add a selftest for this, ensuring that both onion
routing works and infinite routing loops do not crash the kernel. We
also add a test case for wireguard interfaces nesting packets and
sending traffic between each other, as well as the loop in this case
too. We make sure to send some throughput-heavy traffic for this use
case, to stress out any possible recursion issues with the locks around
workqueues.
Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While at some point it might have made sense to be running these tests
on ppc64 with 4k stacks, the kernel hasn't actually used 4k stacks on
64-bit powerpc in a long time, and more interesting things that we test
don't really work when we deviate from the default (16k). So, we stop
pushing our luck in this commit, and return to the default instead of
the minimum.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
