Convert lan9303 to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c. We need to provide stubs for
the mac_link_down() and mac_config() methods which are mandatory.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1rwfuE-007537-1u@rmk-PC.armlinux.org.ukSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Convert bcm_sf2 to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/E1rwfu3-00752s-On@rmk-PC.armlinux.org.ukSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Character sequences starting with `\` are interpreted by python as
escaped Unicode characters. However, they have other meaning in
regular expressions (e.g: "\d").

It seems Python >= 3.12 starts emitting a SyntaxWarning when these
escaped sequences are not recognized as valid Unicode characters.

An example of these warnings:

tools/testing/selftests/net/openvswitch/ovs-dpctl.py:505:
SyntaxWarning: invalid escape sequence '\d'

Fix all the warnings by flagging literals as raw strings.
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://lore.kernel.org/r/20240416090913.2028475-1-amorenoz@redhat.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

build bot points out that I forgot to add the PAGE_POOL
config dependency when adding the support in netdevsim.

Fixes: 1580cbcb ("net: netdevsim: add some fake page pool use")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404170348.thxrboF1-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202404170527.LIAPSyMB-lkp@intel.com/
Link: https://lore.kernel.org/r/20240416232137.2022058-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Update the net usb qmi_wwan driver to support Longsung U8300/U9300.
Enabling DTR on this modem was necessary to ensure stable operation.

For U8300

Interface 4 is used by for QMI interface in stock firmware of U8300, the
router which uses U8300 modem. Free the interface up, to rebind it to
qmi_wwan driver.
Interface 5 is used by for ADB interface in stock firmware of U8300, the
router which uses U8300 modem. Free the interface up.
The proper configuration is:

Interface mapping is:
0: unknown (Debug), 1: AT (Modem), 2: AT, 3: PPP (NDIS / Pipe), 4: QMI, 5: ADB

T:  Bus=05 Lev=01 Prnt=03 Port=02 Cnt=01 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1c9e ProdID=9b05 Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
C:  #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
I:  If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

For U9300

Interface 1 is used by for ADB interface in stock firmware of U9300, the
router which uses U9300 modem. Free the interface up.
Interface 4 is used by for QMI interface in stock firmware of U9300, the
router which uses U9300 modem. Free the interface up, to rebind it to
qmi_wwan driver.
The proper configuration is:

Interface mapping is:
0: ADB, 1: AT (Modem), 2: AT, 3: PPP (NDIS / Pipe), 4: QMI

Note: Interface 3 of some models of the U9300 series can send AT commands.

T:  Bus=05 Lev=01 Prnt=05 Port=04 Cnt=01 Dev#=  6 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1c9e ProdID=9b3c Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
C:  #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms

Tested successfully using Modem Manager on U9300.
Tested successfully using qmicli on U9300.
Signed-off-by: Coia Prant <coiaprant@gmail.com>
Link: https://lore.kernel.org/r/20240415142638.1756966-1-coiaprant@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

selftest build is fairly noisy, it's easy to miss warnings.
It's standard practice to add alternative messages in
the Makefile. I was grepping for existing solutions,
and found that bpf already has the right knobs.

Move them to lib.mk and adopt in net.
Convert the basic rules in lib.mk.
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20240411190534.444918-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Andrew Oates reported that some macOS hosts could repeatedly
send FIN packets even if the remote peer drops them and
send back DUP ACK RWIN 0 packets.

<quoting Andrew>

 20:27:16.968254 gif0  In  IP macos > victim: Flags [SEW], seq 1950399762, win 65535, options [mss 1460,nop,wscale 6,nop,nop,TS val 501897188 ecr 0,sackOK,eol], length 0
 20:27:16.968339 gif0  Out IP victim > macos: Flags [S.E], seq 2995489058, ack 1950399763, win 1448, options [mss 1460,sackOK,TS val 3829877593 ecr 501897188,nop,wscale 0], length 0
 20:27:16.968833 gif0  In  IP macos > victim: Flags [.], ack 1, win 2058, options [nop,nop,TS val 501897188 ecr 3829877593], length 0
 20:27:16.968885 gif0  In  IP macos > victim: Flags [P.], seq 1:1449, ack 1, win 2058, options [nop,nop,TS val 501897188 ecr 3829877593], length 1448
 20:27:16.968896 gif0  Out IP victim > macos: Flags [.], ack 1449, win 0, options [nop,nop,TS val 3829877593 ecr 501897188], length 0
 20:27:19.454593 gif0  In  IP macos > victim: Flags [F.], seq 1449, ack 1, win 2058, options [nop,nop,TS val 501899674 ecr 3829877593], length 0
 20:27:19.454675 gif0  Out IP victim > macos: Flags [.], ack 1449, win 0, options [nop,nop,TS val 3829880079 ecr 501899674], length 0
 20:27:19.455116 gif0  In  IP macos > victim: Flags [F.], seq 1449, ack 1, win 2058, options [nop,nop,TS val 501899674 ecr 3829880079], length 0

 The retransmits/dup-ACKs then repeat in a tight loop.

</quoting Andrew>

RFC 9293 3.4. Sequence Numbers states :

  Note that when the receive window is zero no segments should be
  acceptable except ACK segments.  Thus, it is be possible for a TCP to
  maintain a zero receive window while transmitting data and receiving
  ACKs.  However, even when the receive window is zero, a TCP must
  process the RST and URG fields of all incoming segments.

Even if we could consider a bare FIN.ACK packet to be an ACK in RFC terms,
the retransmits should use exponential backoff.

Accepting the FIN in linux does not add extra memory costs,
because the FIN flag will simply be merged to the tail skb in
the receive queue, and incoming packet is freed.
Reported-by: Andrew Oates <aoates@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Christoph Paasch <cpaasch@apple.com>
Cc: Vidhi Goel <vidhi_goel@apple.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Netfilter tests have been moved to a subdir under selftests/net by
patch series [1]. Fix the path in selftests/Makefile accordingly.

This helps fix the following error:

    tools/testing/selftests$ make
    ...
    make[1]: Entering directory 'tools/testing/selftests'
    make[1]: *** netfilter: No such file or directory.  Stop.
    make[1]: Leaving directory 'tools/testing/selftests'

[1] https://lore.kernel.org/all/20240411233624.8129-1-fw@strlen.de/Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Yujie Liu <yujie.liu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The mediatek-ge PHY driver already disables EEE advertisement on the switch
PHYs but my testing [1] shows that it is somehow enabled afterwards.
Disabling EEE advertisement before the PHY driver initialises keeps it off.
Therefore, remove disabling EEE advertisement here as it's useless.

Link: https://lore.kernel.org/netdev/d286ea27-e911-4dcb-9037-b75f22b437b8@arinc9.com/ [1]
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In commit 18ff0bcd ("ethtool: add interface to interact with Ethernet
Power Equipment"), the 'pse_control_config' structure was introduced,
housing a single member labeled 'admin_cotrol' responsible for maintaining
the operational state of the PoDL PSE functions.

A noticeable typographical error exists in the naming of this field
('cotrol' should be corrected to 'control'), which this commit aims to
rectify.

Furthermore, with upcoming extensions of this structure to encompass PoE
functionalities, the field is being renamed to 'podl_admin_state' to
distinctly indicate that this state is tailored specifically for PoDL."
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://lore.kernel.org/r/20240414-feature_poe-v8-3-e4bf1e860da5@bootlin.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

This allows fw_devlink to create device links between consumers of
a PSE and the supplier of the PSE.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://lore.kernel.org/r/20240414-feature_poe-v8-2-e4bf1e860da5@bootlin.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Oleksij was the first to add support for pse-pd net subsystem.
Add himself to the maintainers seems logical.
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240414-feature_poe-v8-1-e4bf1e860da5@bootlin.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Real driver testing will obviously require enabling more
options, but will require more manual setup in the first
place. For CIs running purely software tests we need
to enable netdevsim.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240416004556.1618804-3-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

ping prints all the info to stdout. To make debug easier capture
stdout in the Exception raised when command unexpectedly fails.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240416004556.1618804-2-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

kmemleak reports net_device resources are no longer released, restore
needs_free_netdev toggle.  Sample backtrace:

unreferenced object 0xffff88810874f000 (size 4096): [..]
    [<00000000a2b8af8b>] __kmalloc_node+0x209/0x290
    [<0000000040b0a1a9>] alloc_netdev_mqs+0x58/0x470
    [<00000000b4be1e78>] vti6_init_net+0x94/0x230
    [<000000008830c1ea>] ops_init+0x32/0xc0
    [<000000006a26fa8f>] setup_net+0x134/0x2e0
[..]

Cc: Breno Leitao <leitao@debian.org>
Fixes: a9b2d55a ("ip6_vti: Do not use custom stat allocator")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240415122346.26503-1-fw@strlen.deSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Allow nvmem-cells and nvmem-cell-names to get mac_address from onchip
fuse.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240415103621.1644735-1-peng.fan@oss.nxp.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

The print function dev_err() is redundant because
platform_get_irq_byname() already prints an error.

./drivers/net/ipa/ipa_interrupt.c:300:2-9: line 300 is redundant because platform_get_irq() already prints an error.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8756Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240415031456.10805-1-jiapeng.chong@linux.alibaba.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

The variable is being assigned an value and then is being re-assigned
a new value in the next statement. The assignment is redundant and can
be removed.

Cleans up clang scan build warning:
net/handshake/tlshd.c:216:2: warning: Value stored to 'ret' is never
read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/20240415100713.483399-1-colin.i.king@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

The ID table already has respective entry and MODULE_DEVICE_TABLE and
creates proper alias for SPI driver.  Having another MODULE_ALIAS causes
the alias to be duplicated.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240414154929.127045-1-krzk@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Commit dcf70df2 ("af_unix: Fix up unix_edge.successor for embryo
socket.") added spin_lock(&unix_gc_lock) in accept() path, and it
caused regression in a stress test as reported by kernel test robot.

If the embryo socket is not part of the inflight graph, we need not
hold the lock.

To decide that in O(1) time and avoid the regression in the normal
use case,

  1. add a new stat unix_sk(sk)->scm_stat.nr_unix_fds

  2. count the number of inflight AF_UNIX sockets in the receive
     queue under unix_state_lock()

  3. move unix_update_edges() call under unix_state_lock()

  4. avoid locking if nr_unix_fds is 0 in unix_update_edges()
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202404101427.92a08551-oliver.sang@intel.comSigned-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20240413021928.20946-1-kuniyu@amazon.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Tony Nguyen says:

====================

This series contains updates to ice driver only.

Lukasz removes unnecessary argument from ice_fdir_comp_rules().

Jakub adds support for ethtool 'ether' flow-type rules.

Jake moves setting of VF MSI-X value to initialization function and adds
tracking of VF relative MSI-X index.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  ice: store VF relative MSI-X index in q_vector->vf_reg_idx
  ice: set vf->num_msix in ice_initialize_vf_entry()
  ice: Implement 'flow-type ether' rules
  ice: Remove unnecessary argument from ice_fdir_comp_rules()
====================

Link: https://lore.kernel.org/r/20240412210534.916756-1-anthony.l.nguyen@intel.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Petr Machata says:

====================
selftests: Assortment of fixes

This is a loose follow-up to the Kernel CI patchset posted recently. It
contains various fixes that were supposed to be part of said patchset, but
didn't fit due to its size. The latter 4 patches were written independently
of the CI effort, but again didn't fit in their intended patchsets.

- Patch #1 unifies code of two very similar looking functions, busywait()
  and slowwait().

- Patch #2 adds sanity checks around the setting of NETIFS, which carries
  list of interfaces to run on.

- Patch #3 changes bail_on_lldpad() to SKIP instead of FAILing.

- Patches #4 to #7 fix issues in selftests.

- Patches #8 to #10 add topology diagrams to several selftests.
  This should have been part of the mlxsw leg of NH group stats patches,
  but again, it did not fit in due to size.
====================

Link: https://lore.kernel.org/r/cover.1712940759.git.petrm@nvidia.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

This test lacks a topology diagram, making the setup not obvious.
Add one.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

This test lacks a topology diagram, making the setup not obvious.
Add one.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

This test lacks a topology diagram, making the setup not obvious.
Add one.

Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

The ethtool dump includes the lanes parameter only when the port is up.
Therefore, the ethtool_lanes.sh test waits for ports to come before testing
the lanes parameter.

In some cases, the test considers the port as up, but the lanes parameter
is not yet dumped although assumed to be, resulting in ethtool_lanes.sh
test failure.

To avoid that, ensure that the lanes parameter is indeed dumped by waiting
for it explicitly, before preforming the test cases.
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

The tests use the constant TC_HIT_TIMEOUT when waiting on the counter
values. However it does not include tc_common.sh where the counter is
specified. The test has been robust in our testing, which means the counter
is bumped quickly enough that the updated value is available already on the
first iteration. Nevertheless it's not correct. Include tc_common.sh as
appropriate.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Some log_test calls are done in a loop, and lead to the same log output.
This might prove tricky to deduplicate for automated tools. Instead, roll
the unique information from log_info to log_test, and drop the log_info.
This also leads to more compact and clearer output.

This change prompts rewording the messages so that they are not excessively
long.

Some check_err messages do not indicate what the issue actually is, so
reword them to say it's a "ping with", like is the case in some other
instances in this test.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

When rx-pktsNtoM reports a range that involves very low-valued range, such
as 0-64, the calculated length of the packet will be -4, because FCS is
subtracted from the value. mausezahn then confuses the value for an option
and bails out. As a result, the test dumps many mausezahn error messages.

Instead, cap the value at 0. mausezahn will use an appropriate minimum
packet length.

Cc: Vladimir Oltean <vladimir.oltean@nxp.com>
Cc: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

$ksft_skip is used to mark selftests that have tooling issues. The fact
that LLDPad is running, but shouldn't, is one such issue. Therefore have
bail_on_lldpad() bail with $ksft_skip.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

The variable should contain at least NUM_NETIFS interfaces, stored
as keys named "p$i", for i in `seq $NUM_NETIFS`.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Bodies of busywait() and slowwait() functions are almost identical. Extract
the common code into a helper, loopy_wait, and convert busywait() and
slowwait() into trivial wrappers.

Moreover, the fact that slowwait() uses seconds for units is really not
intuitive, and the comment does not help much. Instead make the unit part
of the name of the argument to further clarify what units are expected.

Cc: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Convert mt753x to provide its own phylink MAC operations, thus avoiding
the shim layer in DSA's port.c
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/E1rvIco-006bQu-Fq@rmk-PC.armlinux.org.ukSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Convert lantiq_gswip to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c. For lantiq_gswip, it means
we end up with a common instance of phylink MAC operations that are
shared between the different variants, rather than having duplicated
initialisers in dsa_switch_ops.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1rvIcj-006bQo-B3@rmk-PC.armlinux.org.ukSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Convert qca8k to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/E1rvIce-006bQi-58@rmk-PC.armlinux.org.ukSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Convert ar9331 to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/E1rvIcZ-006bQc-0W@rmk-PC.armlinux.org.ukSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Convert sja1105 to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/E1rvIcT-006bQW-S3@rmk-PC.armlinux.org.ukSigned-off-by: Paolo Abeni <pabeni@redhat.com>

Jakub Kicinski says:

====================
selftests: net: exercise page pool reporting via netlink

Add a basic test for page pool netlink reporting.

v1: https://lore.kernel.org/all/20240411012815.174400-1-kuba@kernel.org/
====================

Link: https://lore.kernel.org/r/20240412141436.828666-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Add a Python test for the basic ops.

  # ./net/nl_netdev.py
  KTAP version 1
  1..3
  ok 1 nl_netdev.empty_check
  ok 2 nl_netdev.lo_check
  ok 3 nl_netdev.page_pool_check
  # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20240412141436.828666-7-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Using "with" on an entire driver test env is supported already,
but it's also useful to use "with" on an individual nsim.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20240412141436.828666-6-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>