Fix comments, add some new, and make debugfs output consistent.
Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's a 'not' missing in one paragraph. Add it.
Fixes: 3007098494 ("cgroup: add support for eBPF programs")
Signed-off-by: Daniel Mack <daniel@zonque.org>
Reported-by: Rami Rosen <roszenrami@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jerome Brunet says:
====================
Fix OdroidC2 Gigabit Tx link issue
This patchset fixes an issue with the OdroidC2 board (DWMAC + RTL8211F).
The platform seems to enter LPI on the Rx path too often while performing
relatively high TX transfer. This eventually break the link (both Tx and
Rx), and require to bring the interface down and up again to get the Rx
path working again.
The root cause of this issue is not fully understood yet but disabling EEE
advertisement on the PHY prevent this feature to be negotiated.
With this change, the link is stable and reliable, with the expected
throughput performance.
The patchset adds options in the generic phy driver to disable EEE
advertisement, through device tree. The way it is done is very similar
to the handling of the max-speed property.
Changes since V2: [2]
- Rename "eee-advert-disable" to "eee-broken-modes" to make the intended
purpose of this option clear (flag broken configuration, not a
configuration option)
- Add DT bindings constants so the DT configuration is more user friendly
- Submit to net-next instead of net.
Changes since V1: [1]
- Disable the advertisement of EEE in the generic code instead of the
realtek driver.
[1] : http://lkml.kernel.org/r/1479220154-25851-1-git-send-email-jbrunet@baylibre.com
[2] : http://lkml.kernel.org/r/1479742524-30222-1-git-send-email-jbrunet@baylibre.com
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds an option to disable EEE advertisement in the generic PHY
by providing a mask of prohibited modes corresponding to the value found in
the MDIO_AN_EEE_ADV register.
On some platforms, PHY Low power idle seems to be causing issues, even
breaking the link some cases. The patch provides a convenient way for these
platforms to disable EEE advertisement and work around the issue.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The dwmac4 IP can synthesized with 1-8 number of tx queues.
On an IP synthesized with DWC_EQOS_NUM_TXQ > 1, all txqueues are disabled
by default. For these IPs, the bitfield TXQEN is R/W.
Always enable tx queue 0. The write will have no effect on IPs synthesized
with DWC_EQOS_NUM_TXQ == 1.
The driver does still not utilize more than one tx queue in the IP.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add dependencies on the architectures that support these devices and
add compile test to ensure ongoing code build coverage.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Also include the netdev list for convenience, as done elsewhere.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
mlx4 stats are chaotic because a deferred work queue is responsible
to update them every 250 ms.
Even sampling stats every one second with "sar -n DEV 1" gives
variations like the following :
lpaa23:~# sar -n DEV 1 10 | grep eth0 | cut -c1-65
07:39:22 eth0 146877.00 3265554.00 9467.15 4828168.50
07:39:23 eth0 146587.00 3260329.00 9448.15 4820445.98
07:39:24 eth0 146894.00 3259989.00 9468.55 4819943.26
07:39:25 eth0 110368.00 2454497.00 7113.95 3629012.17 <<>>
07:39:26 eth0 146563.00 3257502.00 9447.25 4816266.23
07:39:27 eth0 145678.00 3258292.00 9389.79 4817414.39
07:39:28 eth0 145268.00 3253171.00 9363.85 4809852.46
07:39:29 eth0 146439.00 3262185.00 9438.97 4823172.48
07:39:30 eth0 146758.00 3264175.00 9459.94 4826124.13
07:39:31 eth0 146843.00 3256903.00 9465.44 4815381.97
Average: eth0 142827.50 3179259.70 9206.30 4700578.16
This patch allows rx/tx bytes/packets counters being folded at the
time we need stats.
We now can fetch stats every 1 ms if we want to check NIC behavior
on a small time window. It is also easier to detect anomalies.
lpaa23:~# sar -n DEV 1 10 | grep eth0 | cut -c1-65
07:42:50 eth0 142915.00 3177696.00 9212.06 4698270.42
07:42:51 eth0 143741.00 3200232.00 9265.15 4731593.02
07:42:52 eth0 142781.00 3171600.00 9202.92 4689260.16
07:42:53 eth0 143835.00 3192932.00 9271.80 4720761.39
07:42:54 eth0 141922.00 3165174.00 9147.64 4679759.21
07:42:55 eth0 142993.00 3207038.00 9216.78 4741653.05
07:42:56 eth0 141394.06 3154335.64 9113.85 4663731.73
07:42:57 eth0 141850.00 3161202.00 9144.48 4673866.07
07:42:58 eth0 143439.00 3180736.00 9246.05 4702755.35
07:42:59 eth0 143501.00 3210992.00 9249.99 4747501.84
Average: eth0 142835.66 3182165.93 9206.98 4704874.08
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It shold reserved sizeof(ipv6hdr) for geneve in ipv6 tunnel.
Fixes: c3ef5aa5e5 ('geneve: Merge ipv4 and ipv6 geneve_build_skb()')
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
Documentation: net: phy: Improve documentation
This patch series addresses discussions and feedback that was recently received
on the mailing-list in the area of: flow control/pause frames, interpretation of
phy_interface_t and finally add some links to useful standards documents.
Changes in v3:
- add Timur's feedback into patch 3
Changes in v2:
- clarify a few things in the RGMII section, add a paragraph about common issues
with RGMII delay mismatches
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add links to the IEEE 802.3-2008 document, and the RGMII v1.3 and v2.0
revisions of the standard.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
RGMII is a recurring source of pain for people with Gigabit Ethernet
hardware since it may require PHY driver and MAC driver level
configuration hints. Document what are the expectations from PHYLIB and
what options exist.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Describe that the Ethernet MAC controller is ultimately responsible for
dealing with proper pause frames/flow control advertisement and
enabling, and that it is therefore allowed to have it change
phydev->supported/advertising with SUPPORTED_Pause and
SUPPORTED_AsymPause.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the function pointers documentation which duplicates information
found in include/linux/phy.h. Maintaining documentation about two
different locations just does not work, but the code is less likely to
be outdated.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
mv88e6xxx_g1_irq_setup() sets up chip->g1_irq.nirqs interrupt mappings,
so free the same amount. This will be 8 or 9 in practice, less than 16.
Fixes: dc30c35be7 ("net: dsa: mv88e6xxx: Implement interrupt support.")
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed says:
====================
Mellanox 100G mlx5 DCBX and ethtool updates
This series provides the following mlx5 updates:
From Huy:
DCBX CEE API and DCBX firmware/host modes support.
- 1st patch ensures the dcbnl_rtnl_ops is published only when the qos
capability bits is on.
- 2nd patch adds the support for CEE interfaces into mlx5 dcbnl_rtnl_ops
- 3rd patch refactors ETS query to read ETS configuration directly from
firmware rather than having a software shadow to it. The existing IEEE
interfaces stays the same.
- 4th patch adds the support for MLX5_REG_DCBX_PARAM and MLX5_REG_DCBX_APP
firmware commands to manipulate mlx5 DCBX mode.
- 5th patch adds the driver support for the new DCBX firmware. This ensures
the backward compatibility versus the old and new firmware. With the new DCBX
firmware, qos settings can be controlled by either firmware or software
depending on the DCBX mode.
From Kamal and Saeed:
- mlx5 self-test support.
From Shaker:
- Private flag to give the user the ability to enable/disable mlx5 CQE
compression.
V1->V2:
- Check ETS capability where needed in:
("net/mlx5e: Read ETS settings directly from firmware")
- Fix return value of mlx5e_dcbnl_switch_to_host_mode in:
("net/mlx5e: ConnectX-4 firmware support for DCBX")
- Update commit message of:
("net/mlx5e: ConnectX-4 firmware support for DCBX")
- Fix two sparse static check warnings in en_selftest.c
This series was generated against commit:
e5f12b3f5e ("Merge branch 'mlxsw-trap-groups-and-policers'")
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The user can now override the automatic driver decision using the
rx_cqe_compress flag, which is the preference for CQE compression.
The flag is initialized with the automatic driver decision.
Signed-off-by: Shaker Daibes <shakerd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pflags is a configuration parameter for the netdev, naturally it belongs
to priv->params.
Also introduce MLX5E_GET_PFLAG
Signed-off-by: Shaker Daibes <shakerd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extend the self diagnostic tests to support loopback test.
The loopback test doesn't require the offline flag, it will use the
generic dev_queue_xmit and a dedicated packet_type to capture and verify
mlx5e selftest loopback packets.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The self diagnostics test implementaion include the following features:
1. Link Test: Check that link is in up state.
2. Speed Test: Check that link was negotiated correctly.
3. Health Test: Check the device health.
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use setdcbx interface to set the DCBX mode to firmware or os.
If setdcbx is called with mode value of zero, the DCBX mode
is set to firmware.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
DBCX by default is controlled by firmware where dcbx capability bit
is set. In this mode, firmware is responsible for reading/sending the
TLV packets from/to the remote partner.
This patch sets up the infrastructure to move between HOST/FW DCBX
control mode.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add set/query commands for DCBX_PARAM register
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Issue description:
Current implementation saves the ETS settings from user in
a temporal soft copy and returns this settings when user
queries the ETS settings.
With the new DCBX firmware, the ETS settings can be changed
by firmware when the DCBX is in firmware controlled mode. Therefore,
user will obtain wrong values from the temporal soft copy.
Solution:
1. Read the ETS settings directly from firmware.
2. For tc_tsa:
a. Initialize tc_tsa to vendor IEEE_8021QAZ_TSA_VENDOR at netdev
creation.
b. When reading ETS setting from FW, if the traffic class bandwidth
is less than 100, set tc_tsa to IEEE_8021QAZ_TSA_ETS. This
implementation solves the scenarios when the DCBX is in FW control
and willing bit is on which means the ETS setting is dictated
by remote switch.
Also check ETS capability where needed.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add DCBX CEE API interface for ConnectX-4. Configurations are stored in
a temporary structure and are applied to the card's firmware when
the CEE's setall callback function is called.
Note:
priority group in CEE is equivalent to traffic class in ConnectX-4
hardware spec.
bw allocation per priority in CEE is not supported because ConnectX-4
only supports bw allocation per traffic class.
user priority in CEE does not have an equivalent term in ConnectX-4.
Therefore, user priority to priority mapping in CEE is not supported.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure firmware supports qos before exposing the DCB API.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We use single queue even if multiqueue is enabled and let admin to
enable it through ethtool later. This is used to avoid possible
regression (small packet TCP stream transmission). But looks like an
overkill since:
- single queue user can disable multiqueue when launching qemu
- brings extra troubles for the management since it needs extra admin
tool in guest to enable multiqueue
- multiqueue performs much better than single queue in most of the
cases
So this patch enables multiqueue by default: if #queues is less than or
equal to #vcpu, enable as much as queue pairs; if #queues is greater
than #vcpu, enable #vcpu queue pairs.
Cc: Hannes Frederic Sowa <hannes@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Neil Horman <nhorman@redhat.com>
Cc: Jeremy Eder <jeder@redhat.com>
Cc: Marko Myllynen <myllynen@redhat.com>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Eichenberger says:
====================
Fix support for the MV88E6097
This patchset fixes the following two issues for the MV88E6097:
- Add missing definition of g1_irqs
- Add missing comment
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a missing comment for the MV88E6097 because of unification.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the missing definition of g1_irqs for MV88E6097.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@netmodule.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
BPF cleanups and misc updates
This patch set adds couple of cleanups in first few patches,
exposes owner_prog_type for array maps as well as mlocked mem
for maps in fdinfo, allows for mount permissions in fs and
fixes various outstanding issues in selftests and samples.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
1) The test_lru_map and test_lru_dist fails building on my machine since
the sys/resource.h header is not included.
2) test_verifier fails in one test case where we try to call an invalid
function, since the verifier log output changed wrt printing function
names.
3) Current selftest suite code relies on sysconf(_SC_NPROCESSORS_CONF) for
retrieving the number of possible CPUs. This is broken at least in our
scenario and really just doesn't work.
glibc tries a number of things for retrieving _SC_NPROCESSORS_CONF.
First it tries equivalent of /sys/devices/system/cpu/cpu[0-9]* | wc -l,
if that fails, depending on the config, it either tries to count CPUs
in /proc/cpuinfo, or returns the _SC_NPROCESSORS_ONLN value instead.
If /proc/cpuinfo has some issue, it returns just 1 worst case. This
oddity is nothing new [1], but semantics/behaviour seems to be settled.
_SC_NPROCESSORS_ONLN will parse /sys/devices/system/cpu/online, if
that fails it looks into /proc/stat for cpuX entries, and if also that
fails for some reason, /proc/cpuinfo is consulted (and returning 1 if
unlikely all breaks down).
While that might match num_possible_cpus() from the kernel in some
cases, it's really not guaranteed with CPU hotplugging, and can result
in a buffer overflow since the array in user space could have too few
number of slots, and on perpcu map lookup, the kernel will write beyond
that memory of the value buffer.
William Tu reported such mismatches:
[...] The fact that sysconf(_SC_NPROCESSORS_CONF) != num_possible_cpu()
happens when CPU hotadd is enabled. For example, in Fusion when
setting vcpu.hotadd = "TRUE" or in KVM, setting ./qemu-system-x86_64
-smp 2, maxcpus=4 ... the num_possible_cpu() will be 4 and sysconf()
will be 2 [2]. [...]
Documentation/cputopology.txt says /sys/devices/system/cpu/possible
outputs cpu_possible_mask. That is the same as in num_possible_cpus(),
so first step would be to fix the _SC_NPROCESSORS_CONF calls with our
own implementation. Later, we could add support to bpf(2) for passing
a mask via CPU_SET(3), for example, to just select a subset of CPUs.
BPF samples code needs this fix as well (at least so that people stop
copying this). Thus, define bpf_num_possible_cpus() once in selftests
and import it from there for the sample code to avoid duplicating it.
The remaining sysconf(_SC_NPROCESSORS_CONF) in samples are unrelated.
After all three issues are fixed, the test suite runs fine again:
# make run_tests | grep self
selftests: test_verifier [PASS]
selftests: test_maps [PASS]
selftests: test_lru_map [PASS]
selftests: test_kmod.sh [PASS]
[1] https://www.sourceware.org/ml/libc-alpha/2011-06/msg00079.html
[2] https://www.mail-archive.com/netdev@vger.kernel.org/msg121183.html
Fixes: 3059303f59 ("samples/bpf: update tracex[23] examples to use per-cpu maps")
Fixes: 86af8b4191 ("Add sample for adding simple drop program to link")
Fixes: df570f5772 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_ARRAY")
Fixes: e155967179 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_HASH")
Fixes: ebb676daa1 ("bpf: Print function name in addition to function id")
Fixes: 5db58faf98 ("bpf: Add tests for the LRU bpf_htab")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: William Tu <u9012063@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since we recently converted the BPF filesystem over to use mount_nodev(),
we now have the possibility to also hold mount options in sb's s_fs_info.
This work implements mount options support for specifying permissions on
the sb's inode, which will be used by tc when it manually needs to mount
the fs.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow for checking the owner_prog_type of a program array map. In some
cases bpf(2) can return -EINVAL /after/ the verifier passed and did all
the rewrites of the bpf program.
The reason that lets us fail at this late stage is that program array
maps are incompatible. Allow users to inspect this earlier after they
got the map fd through BPF_OBJ_GET command. tc will get support for this.
Also, display how much we charged the map with regards to RLIMIT_MEMLOCK.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit dcf800344a ("net/sched: act_mirred: Refactor detection whether
dev needs xmit at mac header") added dev_is_mac_header_xmit(); since it's
also useful elsewhere, move it to if_arp.h and reuse it for BPF.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
After setup we don't need to keep user space fd number around anymore, as
it also has no useful meaning for anyone, just remove it.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since long already bpf_func is not only about struct sk_buff * as
input anymore. Make it generic as void *, so that callers don't
need to cast for it each time they call BPF_PROG_RUN().
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
We don't use ->heap_buf after commit 46d1efd852 ("sfc: remove Software
TSO") so let's remove the last traces.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Major changes:
iwlwifi
* finalize and enable dynamic queue allocation
* use dev_coredumpmsg() to prevent locking the driver
* small fix to pass the AID to the FW
* use FW PS decisions with multi-queue
ath9k
* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
latency and fix bufferbloat
wl18xx
* allow scanning in AP mode
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Merge tag 'wireless-drivers-next-for-davem-2016-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.10
Major changes:
iwlwifi
* finalize and enable dynamic queue allocation
* use dev_coredumpmsg() to prevent locking the driver
* small fix to pass the AID to the FW
* use FW PS decisions with multi-queue
ath9k
* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
latency and fix bufferbloat
wl18xx
* allow scanning in AP mode
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
sparse warns about context imbalance in any code
that uses HARD_TX_LOCK/UNLOCK - this is because it's
unable to determine that flags don't change so
lock and unlock are paired.
Seems easy enough to fix by adding __acquire/__release
calls.
With this patch af_packet.c is now sparse-clean,
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch depends on commit d8d2635419 ("ptp: Introduce a high
resolution frequency adjustment method.")
The gianfar devices offer a frequency resolution of about 0.46 ppb
(depends on actual value of tmr_add, for the calculation assumed
0x80000000). This patch lets users of the device benefit from the increased
frequency resolution when tuning the clock. Thanks to the rounding the
maximum error between the requested frequency and the applied frequency
will then be about 0.23 ppb.
Tested on a v3.3.8 kernel on a real gianfar device. Verified compilation
on net-next (currently at v4.9-rc5).
Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per RX ring packets/bytes counters are not protected by global
priv->stats_lock.
Better not confuse the reader, and use READ_ONCE() to show we read
these counters without surrounding synchronization.
Interrupt moderation is best effort, and we do not really care of
ultra precise counters.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
udplite conflict is resolved by taking what 'net-next' did
which removed the backlog receive method assignment, since
it is no longer necessary.
Two entries were added to the non-priv ethtool operations
switch statement, one in 'net' and one in 'net-next, so
simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Botched calculation of number of pages. As the result,
we were dropping pieces when doing splice to pipe from
e.g. 9p.
Reported-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull i2c fixes from Wolfram Sang:
"Here is a revert and two bugfixes for the I2C designware driver.
Please note that we are still hunting down a regression for the
i2c-octeon driver. While there is a fix pending, we have unclear
feedback from the testers currently. An rc8 would be quite helpful
for this case"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: designware: do not disable adapter after transfer"
i2c: designware: fix rx fifo depth tracking
i2c: designware: report short transfers
Pull ARM fix from Russell King:
"This resolves the ksyms issues by reverting the commit which
introduced the breakage"
There was what I consider to be a better fix, but it's late in the rc
game, so I'll take the revert.
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
Revert "arm: move exports to definitions"
Pull networking fixes from David Miller:
1) Fix leak in fsl/fman driver, from Dan Carpenter.
2) Call flow dissector initcall earlier than any networking driver can
register and start to use it, from Eric Dumazet.
3) Some dup header fixes from Geliang Tang.
4) TIPC link monitoring compat fix from Jon Paul Maloy.
5) Link changes require EEE re-negotiation in bcm_sf2 driver, from
Florian Fainelli.
6) Fix bogus handle ID passed into tfilter_notify_chain(), from Roman
Mashak.
7) Fix dump size calculation in rtnl_calcit(), from Zhang Shengju.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
tipc: resolve connection flow control compatibility problem
mvpp2: use correct size for memset
net/mlx5: drop duplicate header delay.h
net: ieee802154: drop duplicate header delay.h
ibmvnic: drop duplicate header seq_file.h
fsl/fman: fix a leak in tgec_free()
net: ethtool: don't require CAP_NET_ADMIN for ETHTOOL_GLINKSETTINGS
tipc: improve sanity check for received domain records
tipc: fix compatibility bug in link monitoring
net: ethernet: mvneta: Remove IFF_UNICAST_FLT which is not implemented
dwc_eth_qos: drop duplicate headers
net sched filters: fix filter handle ID in tfilter_notify_chain()
net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change
bnxt: do not busy-poll when link is down
udplite: call proper backlog handlers
ipv6: bump genid when the IFA_F_TENTATIVE flag is clear
net/mlx4_en: Free netdev resources under state lock
net: revert "net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit"
rtnetlink: fix the wrong minimal dump size getting from rtnl_calcit()
bnxt_en: Fix a VXLAN vs GENEVE issue
...
