platform/kernel/linux-starfive.git
3 years agovxge: avoid -Wemtpy-body warnings
Arnd Bergmann [Thu, 22 Apr 2021 15:35:33 +0000 (17:35 +0200)]
vxge: avoid -Wemtpy-body warnings

There are a few warnings about empty debug macros in this driver:

drivers/net/ethernet/neterion/vxge/vxge-main.c: In function 'vxge_probe':
drivers/net/ethernet/neterion/vxge/vxge-main.c:4480:76: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
 4480 |                                 "Failed in enabling SRIOV mode: %d\n", ret);

Change them to proper 'do { } while (0)' expressions to make the
code a little more robust and avoid the warnings.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: wwan: core: Return poll error in case of port removal
Loic Poulain [Thu, 22 Apr 2021 14:06:01 +0000 (16:06 +0200)]
net: wwan: core: Return poll error in case of port removal

Ensure that the poll system call returns proper error flags when port
is removed (nullified port ops), allowing user side to properly fail,
without further read or write.

Fixes: 9a44c1cc6388 ("net: Add a WWAN subsystem")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonetdevsim: Only use sampling truncation length when valid
Ido Schimmel [Thu, 22 Apr 2021 13:50:50 +0000 (16:50 +0300)]
netdevsim: Only use sampling truncation length when valid

When the sampling truncation length is invalid (zero), pass the length
of the packet. Without the fix, no payload is reported to user space
when the truncation length is zero.

Fixes: a8700c3dd0a4 ("netdevsim: Add dummy psample implementation")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: enetc: fix link error again
Arnd Bergmann [Thu, 22 Apr 2021 13:35:11 +0000 (15:35 +0200)]
net: enetc: fix link error again

A link time bug that I had fixed before has come back now that
another sub-module was added to the enetc driver:

ERROR: modpost: "enetc_ierb_register_pf" [drivers/net/ethernet/freescale/enetc/fsl-enetc.ko] undefined!

The problem is that the enetc Makefile is not actually used for
the ierb module if that is the only built-in driver in there
and everything else is a loadable module.

Fix it by always entering the directory this time, regardless
of which symbols are configured. This should reliably fix the
problem and prevent it from coming back another time.

Fixes: 112463ddbe82 ("net: dsa: felix: fix link error")
Fixes: e7d48e5fbf30 ("net: enetc: add a mini driver for the Integrated Endpoint Register Block")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mana: fix PCI_HYPERV dependency
Arnd Bergmann [Thu, 22 Apr 2021 13:34:34 +0000 (15:34 +0200)]
net: mana: fix PCI_HYPERV dependency

The MANA driver causes a build failure in some configurations when
it selects an unavailable symbol:

WARNING: unmet direct dependencies detected for PCI_HYPERV
  Depends on [n]: PCI [=y] && X86_64 [=y] && HYPERV [=n] && PCI_MSI [=y] && PCI_MSI_IRQ_DOMAIN [=y] && SYSFS [=y]
  Selected by [y]:
  - MICROSOFT_MANA [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_MICROSOFT [=y] && PCI_MSI [=y] && X86_64 [=y]
drivers/pci/controller/pci-hyperv.c: In function 'hv_irq_unmask':
drivers/pci/controller/pci-hyperv.c:1217:9: error: implicit declaration of function 'hv_set_msi_entry_from_desc' [-Werror=implicit-function-declaration]
 1217 |         hv_set_msi_entry_from_desc(&params->int_entry.msi_entry, msi_desc);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~

A PCI driver should never depend on a particular host bridge
implementation in the first place, but if we have this dependency
it's better to express it as a 'depends on' rather than 'select'.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: marvell: don't use empty switch default case
Marek Behún [Wed, 21 Apr 2021 14:08:03 +0000 (16:08 +0200)]
net: phy: marvell: don't use empty switch default case

This causes error reported by kernel test robot.

Signed-off-by: Marek Behún <kabel@kernel.org>
Fixes: 41d26bf4aba0 ("net: phy: marvell: refactor HWMON OOP style")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: bridge: fix error in br_multicast_add_port when CONFIG_NET_SWITCHDEV=n
Vladimir Oltean [Wed, 21 Apr 2021 18:44:20 +0000 (21:44 +0300)]
net: bridge: fix error in br_multicast_add_port when CONFIG_NET_SWITCHDEV=n

When CONFIG_NET_SWITCHDEV is disabled, the shim for switchdev_port_attr_set
inside br_mc_disabled_update returns -EOPNOTSUPP. This is not caught,
and propagated to the caller of br_multicast_add_port, preventing ports
from joining the bridge.

Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: ae1ea84b33da ("net: bridge: propagate error code and extack from br_mc_disabled_update")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: ravb: Fix release of refclk
Adam Ford [Wed, 21 Apr 2021 14:05:05 +0000 (09:05 -0500)]
net: ethernet: ravb: Fix release of refclk

The call to clk_disable_unprepare() can happen before priv is
initialized. This means moving clk_disable_unprepare out of
out_release into a new label.

Fixes: 8ef7adc6beb2 ("net: ethernet: ravb: Enable optional refclk")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agostmmac: intel: set TSO/TBS TX Queues default settings
Ong Boon Leong [Wed, 21 Apr 2021 08:46:06 +0000 (16:46 +0800)]
stmmac: intel: set TSO/TBS TX Queues default settings

TSO and TBS cannot coexist, for now we set Intel mGbE controller to use
below TX Queue mapping: TxQ0 uses TSO and the rest of TXQs supports TBS.

Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: fix bridge support for drivers without port_bridge_flags callback
Oleksij Rempel [Wed, 21 Apr 2021 13:05:40 +0000 (15:05 +0200)]
net: dsa: fix bridge support for drivers without port_bridge_flags callback

Starting with patch:
a8b659e7ff75 ("net: dsa: act as passthrough for bridge port flags")

drivers without "port_bridge_flags" callback will fail to join the bridge.
Looking at the code, -EOPNOTSUPP seems to be the proper return value,
which makes at least microchip and atheros switches work again.

Fixes: 5961d6a12c13 ("net: dsa: inherit the actual bridge port flags at join time")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agostmmac: intel: unlock on error path in intel_crosststamp()
Dan Carpenter [Wed, 21 Apr 2021 13:22:50 +0000 (16:22 +0300)]
stmmac: intel: unlock on error path in intel_crosststamp()

We recently added some new locking to this function but one error path
was overlooked.  We need to drop the lock before returning.

Fixes: f4da56529da6 ("net: stmmac: Add support for external trigger timestamping")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mv88e6xxx-small-improvements'
David S. Miller [Wed, 21 Apr 2021 17:25:09 +0000 (10:25 -0700)]
Merge branch 'mv88e6xxx-small-improvements'

Tobias Waldekranz says:

====================
net: dsa: mv88e6xxx: Tiny fixes/improvements

Just some small things I have noticed that do not fit in any other
series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: Export cross-chip PVT as devlink region
Tobias Waldekranz [Wed, 21 Apr 2021 12:04:54 +0000 (14:04 +0200)]
net: dsa: mv88e6xxx: Export cross-chip PVT as devlink region

Export the raw PVT data in a devlink region so that it can be
inspected from userspace and compared to the current bridge
configuration.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: Fix off-by-one in VTU devlink region size
Tobias Waldekranz [Wed, 21 Apr 2021 12:04:53 +0000 (14:04 +0200)]
net: dsa: mv88e6xxx: Fix off-by-one in VTU devlink region size

In the unlikely event of the VTU being loaded to the brim with 4k
entries, the last one was placed in the buffer, but the size reported
to devlink was off-by-one. Make sure that the final entry is available
to the caller.

Fixes: ca4d632aef03 ("net: dsa: mv88e6xxx: Export VTU as devlink region")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: Correct spelling of define "ADRR" -> "ADDR"
Tobias Waldekranz [Wed, 21 Apr 2021 12:04:52 +0000 (14:04 +0200)]
net: dsa: mv88e6xxx: Correct spelling of define "ADRR" -> "ADDR"

Because ADRR is not a thing.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'octeontx2-af-cn10k'
David S. Miller [Wed, 21 Apr 2021 17:23:17 +0000 (10:23 -0700)]
Merge branch 'octeontx2-af-cn10k'

Srujana Challa says:

====================
Add support for CN10K CPT block

OcteonTX3 (CN10K) silicon is a Marvell next-gen silicon. CN10K CPT
introduces new features like reassembly support and some feature
enhancements.
This patchset adds new mailbox messages and some minor changes to
existing mailbox messages to support CN10K CPT.

v1-v2
Fixed sparse warnings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoocteontx2-af: Add mailbox for CPT stats
Srujana Challa [Wed, 21 Apr 2021 09:23:02 +0000 (14:53 +0530)]
octeontx2-af: Add mailbox for CPT stats

Adds a new mailbox to get CPT stats, includes performance
counters, CPT engines status and RXC status.

Signed-off-by: Narayana Prasad Raju Atherya <pathreya@marvell.com>
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoocteontx2-af: cn10k: Add mailbox to configure reassembly timeout
Srujana Challa [Wed, 21 Apr 2021 09:23:01 +0000 (14:53 +0530)]
octeontx2-af: cn10k: Add mailbox to configure reassembly timeout

CN10K CPT coprocessor includes a component named RXC which
is responsible for reassembly of inner IP packets. RXC has
the feature to evict oldest entries based on age/threshold.
This patch adds a new mailbox to configure reassembly age
or threshold.

Signed-off-by: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoocteontx2-af: cn10k: Mailbox changes for CN10K CPT
Srujana Challa [Wed, 21 Apr 2021 09:23:00 +0000 (14:53 +0530)]
octeontx2-af: cn10k: Mailbox changes for CN10K CPT

Adds changes to existing CPT mailbox messages to support
CN10K CPT block. This patch also adds new register defines
for CN10K CPT.

Signed-off-by: Vidya Sagar Velumuri <vvelumuri@marvell.com>
Signed-off-by: Srujana Challa <schalla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: wwan: mhi_wwan_ctrl: Fix RX buffer starvation
Loic Poulain [Tue, 20 Apr 2021 09:36:22 +0000 (11:36 +0200)]
net: wwan: mhi_wwan_ctrl: Fix RX buffer starvation

The mhi_wwan_rx_budget_dec function is supposed to return true if
RX buffer budget has been successfully decremented, allowing to queue
a new RX buffer for transfer. However the current implementation is
broken when RX budget is '1', in which case budget is decremented but
false is returned, preventing to requeue one buffer, and leading to
RX buffer starvation.

Fixes: fa588eba632d ("net: Add Qcom WWAN control driver")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: at803x: fix probe error if copper page is selected
Michael Walle [Tue, 20 Apr 2021 10:29:29 +0000 (12:29 +0200)]
net: phy: at803x: fix probe error if copper page is selected

The commit c329e5afb42f ("net: phy: at803x: select correct page on
config init") selects the copper page during probe. This fails if the
copper page was already selected. In this case, the value of the copper
page (which is 1) is propagated through phy_restore_page() and is
finally returned for at803x_probe(). Fix it, by just using the
at803x_page_write() directly.

Also in case of an error, the regulator is not disabled and leads to a
WARN_ON() when the probe fails. This couldn't happen before, because
at803x_parse_dt() was the last call in at803x_probe(). It is hard to
see, that the parse_dt() actually enables the regulator. Thus move the
regulator_enable() to the probe function and undo it in case of an
error.

Fixes: c329e5afb42f ("net: phy: at803x: select correct page on config init")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: David Bauer <mail@david-bauer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mana: remove redundant initialization of variable err
Colin Ian King [Tue, 20 Apr 2021 12:27:30 +0000 (13:27 +0100)]
net: mana: remove redundant initialization of variable err

The variable err is being initialized with a value that is
never read and it is being updated later with a new value.  The
initialization is redundant and can be removed

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agovirtio-net: fix use-after-free in page_to_skb()
Eric Dumazet [Tue, 20 Apr 2021 09:43:41 +0000 (02:43 -0700)]
virtio-net: fix use-after-free in page_to_skb()

KASAN/syzbot had 4 reports, one of them being:

BUG: KASAN: slab-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: slab-out-of-bounds in page_to_skb+0x5cf/0xb70 drivers/net/virtio_net.c:480
Read of size 12 at addr ffff888014a5f800 by task systemd-udevd/8445

CPU: 0 PID: 8445 Comm: systemd-udevd Not tainted 5.12.0-rc8-next-20210419-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:436
 check_region_inline mm/kasan/generic.c:180 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:186
 memcpy+0x20/0x60 mm/kasan/shadow.c:65
 memcpy include/linux/fortify-string.h:191 [inline]
 page_to_skb+0x5cf/0xb70 drivers/net/virtio_net.c:480
 receive_mergeable drivers/net/virtio_net.c:1009 [inline]
 receive_buf+0x2bc0/0x6250 drivers/net/virtio_net.c:1119
 virtnet_receive drivers/net/virtio_net.c:1411 [inline]
 virtnet_poll+0x568/0x10b0 drivers/net/virtio_net.c:1516
 __napi_poll+0xaf/0x440 net/core/dev.c:6962
 napi_poll net/core/dev.c:7029 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7116
 __do_softirq+0x29b/0x9fe kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 common_interrupt+0xa4/0xd0 arch/x86/kernel/irq.c:240

Fixes: fb32856b16ad ("virtio-net: page_to_skb() use build_skb when there's sufficient tailroom")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agophy: nxp-c45-tja11xx: fix phase offset calculation
Radu Pirea (NXP OSS) [Tue, 20 Apr 2021 13:11:33 +0000 (16:11 +0300)]
phy: nxp-c45-tja11xx: fix phase offset calculation

Fix phase offset calculation.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: enetc: automatically select IERB module
Michael Walle [Tue, 20 Apr 2021 14:28:21 +0000 (16:28 +0200)]
net: enetc: automatically select IERB module

Now that enetc supports flow control we have to make sure the settings in
the IERB are correct. Therefore, we actually depend on the enetc-ierb
module. Previously it was possible that this module was disabled while the
enetc was enabled. Fix it by automatically select the enetc-ierb module.

Fixes: e7d48e5fbf30 ("net: enetc: add a mini driver for the Integrated Endpoint Register Block")
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agovirtio-net: restrict build_skb() use to some arches
Eric Dumazet [Tue, 20 Apr 2021 20:01:44 +0000 (13:01 -0700)]
virtio-net: restrict build_skb() use to some arches

build_skb() is supposed to be followed by
skb_reserve(skb, NET_IP_ALIGN), so that IP headers are word-aligned.
(Best practice is to reserve NET_IP_ALIGN+NET_SKB_PAD, but the NET_SKB_PAD
part is only a performance optimization if tunnel encaps are added.)

Unfortunately virtio_net has not provisioned this reserve.
We can only use build_skb() for arches where NET_IP_ALIGN == 0

We might refine this later, with enough testing.

Fixes: fb32856b16ad ("virtio-net: page_to_skb() use build_skb when there's sufficient tailroom")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: wwan: Fix bit ops double shift
Loic Poulain [Tue, 20 Apr 2021 19:09:57 +0000 (21:09 +0200)]
net: wwan: Fix bit ops double shift

bit operation helpers such as test_bit, clear_bit, etc take bit
position as parameter and not value. Current usage causes double
shift => BIT(BIT(0)). Fix that in wwan_core and mhi_wwan_ctrl.

Fixes: 9a44c1cc6388 ("net: Add a WWAN subsystem")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'dsa-tag-override'
David S. Miller [Tue, 20 Apr 2021 23:51:20 +0000 (16:51 -0700)]
Merge branch 'dsa-tag-override'

Tobias Waldekranz says:

====================
net: dsa: Allow default tag protocol to be overridden from DT

This is a continuation of the work started in this patch:
https://lore.kernel.org/netdev/20210323102326.3677940-1-tobias@waldekranz.com/

In addition to the mv88e6xxx support to dynamically change the
protocol, it is now possible to override the protocol from the device
tree. This means that when a board vendor finds an incompatibility,
they can specify a working protocol in the DT, and users will not have
to worry about it.

Some background information:

In a system using an NXP T1023 SoC connected to a 6390X switch, we
noticed that TO_CPU frames where not reaching the CPU. This only
happened on hardware port 8. Looking at the DSA master interface
(dpaa-ethernet) we could see that an Rx error counter was bumped at
the same rate. The logs indicated a parser error.

It just so happens that a TO_CPU coming in on device 0, port 8, will
result in the first two bytes of the DSA tag being one of:

00 40
00 44
00 46

My guess was that since these values looked like 802.3 length fields,
the controller's parser would signal an error if the frame length did
not match what was in the header.

This was later confirmed using two different workarounds provided by
Vladimir. Unfortunately these either bypass or ignore the hardware
parser and thus robs working combinations of the ability to do RSS and
other nifty things. It was therefore decided to go with the option of
a DT override.

v1 -> v2:
  - Fail if the device does not support changing protocols instead of
    falling back to the default. (Andrew)
  - Only call change_tag_protocol on CPU ports. (Andrew/Vladimir)
  - Only allow changing the protocol on chips that have at least
    "undocumented" level of support for EDSA. (Andrew).
  - List the supported protocols in the binding documentation. I opted
    for only listing the protocols that I have tested. As more people
    test their drivers, they can add them. (Rob)

v2 -> v3:
  - Rename "dsa,tag-protocol" -> "dsa-tag-protocol". (Rob)
  - Some cleanups to 4/5. (Vladimir)
  - Add a comment detailing how tree/driver agreement on the tag
    protocol is enforced. (Vladimir).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: dsa: Document dsa-tag-protocol property
Tobias Waldekranz [Tue, 20 Apr 2021 18:53:11 +0000 (20:53 +0200)]
dt-bindings: net: dsa: Document dsa-tag-protocol property

The 'dsa-tag-protocol' is used to force a switch tree to use a
particular tag protocol, typically because the Ethernet controller
that it is connected to is not compatible with the default one.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: Allow default tag protocol to be overridden from DT
Tobias Waldekranz [Tue, 20 Apr 2021 18:53:10 +0000 (20:53 +0200)]
net: dsa: Allow default tag protocol to be overridden from DT

Some combinations of tag protocols and Ethernet controllers are
incompatible, and it is hard for the driver to keep track of these.

Therefore, allow the device tree author (typically the board vendor)
to inform the driver of this fact by selecting an alternate protocol
that is known to work.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: Only notify CPU ports of changes to the tag protocol
Tobias Waldekranz [Tue, 20 Apr 2021 18:53:09 +0000 (20:53 +0200)]
net: dsa: Only notify CPU ports of changes to the tag protocol

Previously DSA ports were also included, on the assumption that the
protocol used by the CPU port had to the matched throughout the entire
tree.

As there is not yet any consumer in need of this, drop the call.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: Allow dynamic reconfiguration of tag protocol
Tobias Waldekranz [Tue, 20 Apr 2021 18:53:08 +0000 (20:53 +0200)]
net: dsa: mv88e6xxx: Allow dynamic reconfiguration of tag protocol

For devices that supports both regular and Ethertyped DSA tags, allow
the user to change the protocol.

Additionally, because there are ethernet controllers that do not
handle regular DSA tags in all cases, also allow the protocol to be
changed on devices with undocumented support for EDSA. But, in those
cases, make sure to log the fact that an undocumented feature has been
enabled.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: Mark chips with undocumented EDSA tag support
Tobias Waldekranz [Tue, 20 Apr 2021 18:53:07 +0000 (20:53 +0200)]
net: dsa: mv88e6xxx: Mark chips with undocumented EDSA tag support

All devices are capable of using regular DSA tags. Support for
Ethertyped DSA tags sort into three categories:

1. No support. Older chips fall into this category.

2. Full support. Datasheet explicitly supports configuring the CPU
   port to receive FORWARDs with a DSA tag.

3. Undocumented support. Datasheet lists the configuration from
   category 2 as "reserved for future use", but does empirically
   behave like a category 2 device.

So, instead of listing the one true protocol that should be used by a
particular chip, specify the level of support for EDSA (support for
regular DSA is implicit on all chips). As before, we use EDSA for all
chips that fully supports it.

In upcoming changes, we will use this information to support
dynamically changing the tag protocol.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge tag 'mac80211-next-for-net-next-2021-04-20' of git://git.kernel.org/pub/scm...
David S. Miller [Tue, 20 Apr 2021 23:44:04 +0000 (16:44 -0700)]
Merge tag 'mac80211-next-for-net-next-2021-04-20' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another set of updates, all over the map:
 * set sk_pacing_shift for 802.3->802.11 encap offload
 * some monitor support for 802.11->802.3 decap offload
 * HE (802.11ax) spec updates
 * userspace API for TDLS HE support
 * along with various other small features, cleanups and
   fixups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mlxsw-refactor-qdisc-offload'
David S. Miller [Tue, 20 Apr 2021 23:43:13 +0000 (16:43 -0700)]
Merge branch 'mlxsw-refactor-qdisc-offload'

Petr Machata says:

====================
mlxsw: Refactor qdisc offload

Currently, mlxsw admits for offload a suitable root qdisc, and its
children. Thus up to two levels of hierarchy are offloaded. Often, this is
enough: one can configure TCs with RED and TCs with a shaper, and can even
see counters for each TC by looking at a qdisc at a sufficiently shallow
position.

While simple, the system has obvious shortcomings. It is not possible to
configure both RED and shaping on one TC. It is not possible to place a
PRIO below root TBF, which would then be offloaded as port shaper. FIFOs
are only offloaded at root or directly below, which is confusing to users,
because RED and TBF of course have their own FIFO.

This patchset is a step towards the end goal of allowing more comprehensive
qdisc tree offload and cleans up the qdisc offload code.

- Patches #1-#4 contain small cleanups.

- Up until now, since mlxsw offloaded only a very simple qdisc
  configurations, basically all bookkeeping was done using one container
  for the root qdisc, and 8 containers for its children. Patches #5, #6, #8
  and #9 gradually introduce a more dynamic structure, where parent-child
  relationships are tracked directly at qdiscs, instead of being implicit.

- This tree management assumes only one qdisc is created at a time. In FIFO
  handlers, this condition was enforced simply by asserting RTNL lock. But
  instead of furthering this RTNL dependence, patch #7 converts the whole
  qdisc offload logic to a per-port mutex.

- Patch #10 adds a selftest.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: mlxsw: sch_red_ets: Test proper counter cleaning in ETS
Petr Machata [Tue, 20 Apr 2021 14:53:48 +0000 (16:53 +0200)]
selftests: mlxsw: sch_red_ets: Test proper counter cleaning in ETS

There was a bug introduced during the rework which cause non-zero backlog
being stuck at ETS. Introduce a selftest that would have caught the issue
earlier.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Index future FIFOs by band number
Petr Machata [Tue, 20 Apr 2021 14:53:47 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Index future FIFOs by band number

mlxsw used to hold an array of qdiscs indexed by the TC number. In the
previous patch, it was changed to allocate child qdiscs dynamically, and
they are now indexed by band number. Follow suit with the array of future
FIFOs.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Allocate child qdiscs dynamically
Petr Machata [Tue, 20 Apr 2021 14:53:46 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Allocate child qdiscs dynamically

Instead of keeping qdiscs in globally-preallocated arrays, introduce a
per-qdisc-kind value num_classes, and then allocate the necessary child
qdiscs (if any) based on that value. Since now dynamic allocation is
involved, mlxsw_sp_qdisc_replace() gets messy enough that it is worth it to
split it to two cases: a new qdisc allocation and a change of existing
qdisc. (Note that the change also includes what TC formally calls replace,
if the qdisc kind is the same.)

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Guard all qdisc accesses with a lock
Petr Machata [Tue, 20 Apr 2021 14:53:45 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Guard all qdisc accesses with a lock

The FIFO handler currently guards accesses to the future FIFO tracking by
asserting RTNL. In the future, the changes to the qdisc state will be more
thorough, so other qdiscs will need this guarding is as well. In order
to not further the RTNL infestation, instead convert to a custom lock that
will guard accesses to the qdisc state.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Track children per qdisc
Petr Machata [Tue, 20 Apr 2021 14:53:44 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Track children per qdisc

mlxsw currently allows a two-level structure of qdiscs: the root and
possibly a number of children. In order to support offloading more general
qdisc trees, introduce to struct mlxsw_sp_qdisc a pointer to child qdiscs.
Refer to the child qdiscs through this pointer, instead of going through
the tclass_qdiscs in qdisc_state. Additionally introduce a field
num_classes, which holds number of given qdisc's children.

Also introduce a generic function for walking qdisc trees. Rewrite
mlxsw_sp_qdisc_find() and _find_by_handle() to use the generic walker.

For now, keep the qdisc_state.tclass_qdisc, and just point root_qdiscs's
children to this array. Following patches will make the allocation dynamic.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Promote backlog reduction to mlxsw_sp_qdisc_destroy()
Petr Machata [Tue, 20 Apr 2021 14:53:43 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Promote backlog reduction to mlxsw_sp_qdisc_destroy()

When a qdisc is removed, it is necessary to update the backlog value at its
parent--unless the qdisc is at root position. RED, TBF and FIFO all do
that, each separately. Since all of them need to do this, just promote the
operation directly to mlxsw_sp_qdisc_destroy(), instead of deferring it to
individual destructors. Since FIFO dtor thus becomes trivial, remove it.

Add struct mlxsw_sp_qdisc.parent to point at the parent qdisc. This will be
handy later as deeper structures are offloaded. Use the parent qdisc to
find the chain of parents whose backlog value needs to be updated.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Track tclass_num as int, not u8
Petr Machata [Tue, 20 Apr 2021 14:53:42 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Track tclass_num as int, not u8

tclass_num is just a number, a value that would be ordinarily passed around
as an int. (Which is unlike a u8 prio_bitmap.) In several places,
tclass_num already is an int. Convert the remaining instances.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Drop an always-true condition
Petr Machata [Tue, 20 Apr 2021 14:53:41 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Drop an always-true condition

The function mlxsw_sp_qdisc_compare() is invoked a couple lines above this
check, which will bounce any requests where this condition does not hold.
Therefore drop it.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Simplify mlxsw_sp_qdisc_compare()
Petr Machata [Tue, 20 Apr 2021 14:53:40 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Simplify mlxsw_sp_qdisc_compare()

The purpose of this function is to filter out events that are related to
qdiscs that are not offloaded, or are not offloaded anymore. But the
function is unnecessarily thorough:

- mlxsw_sp_qdisc pointer is never NULL in the context where it is called
- Two qdiscs with the same handle will never have different types. Even
  when replacing one qdisc with another in the same class, Linux will not
  permit handle reuse unless the qdisc type also matches.

Simplify the function by omitting these two unnecessary conditions.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_qdisc: Drop one argument from check_params callback
Petr Machata [Tue, 20 Apr 2021 14:53:39 +0000 (16:53 +0200)]
mlxsw: spectrum_qdisc: Drop one argument from check_params callback

The mlxsw_sp_qdisc argument is not used in any of the actual callbacks.
Drop it.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agokorina: Fix build.
David S. Miller [Tue, 20 Apr 2021 23:40:08 +0000 (16:40 -0700)]
korina: Fix build.

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'marvell-phy-hwmon'
David S. Miller [Tue, 20 Apr 2021 23:27:54 +0000 (16:27 -0700)]
Merge branch 'marvell-phy-hwmon'

Marek Behún says:

====================
net: phy: marvell: some HWMON updates

Here are some updates for Marvell PHY HWMON, mainly
- refactoring for code deduplication
- Amethyst PHY support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: marvell: add support for Amethyst internal PHY
Marek Behún [Tue, 20 Apr 2021 07:54:03 +0000 (09:54 +0200)]
net: phy: marvell: add support for Amethyst internal PHY

Add support for Amethyst internal PHY.

The only difference from Peridot is HWMON.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mv88e6xxx: simulate Amethyst PHY model number
Marek Behún [Tue, 20 Apr 2021 07:54:02 +0000 (09:54 +0200)]
net: dsa: mv88e6xxx: simulate Amethyst PHY model number

Amethyst internal PHYs also report empty model number in MII_PHYSID2.

Fill in switch product number, as is done for Topaz and Peridot.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: marvell: use assignment by bitwise AND operator
Marek Behún [Tue, 20 Apr 2021 07:54:01 +0000 (09:54 +0200)]
net: phy: marvell: use assignment by bitwise AND operator

Use the &= operator instead of
  ret = ret & ...

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: marvell: fix HWMON enable register for 6390
Marek Behún [Tue, 20 Apr 2021 07:54:00 +0000 (09:54 +0200)]
net: phy: marvell: fix HWMON enable register for 6390

Register 27_6.15:14 has the following description in 88E6393X
documentation:
  Temperature Sensor Enable
    0x0 - Sample every 1s
    0x1 - Sense rate decided by bits 10:8 of this register
    0x2 - Use 26_6.5 (One shot Temperature Sample) to enable
    0x3 - Disable

This is compatible with how the 6390 code uses this register currently,
but the 6390 code handles it as two 1-bit registers (somewhat), instead
of one register with 4 possible values.

(A newer version of the 6390 documentation removed temperature sensor
 section completely. In an older version, the above mentioned register
 is reserved, although it is R/W. Since the code works, I think we can
 assume that it is correct.)

Rename this register and define all 4 values according to 6393X
documentation.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: marvell: refactor HWMON OOP style
Marek Behún [Tue, 20 Apr 2021 07:53:59 +0000 (09:53 +0200)]
net: phy: marvell: refactor HWMON OOP style

Use a structure of Marvell PHY specific HWMON methods to reduce code
duplication. Store a pointer to this structure into the PHY driver's
driver_data member.

Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agokorina: Fix conflict with global symbol desc_empty on x86.
David S. Miller [Tue, 20 Apr 2021 23:24:26 +0000 (16:24 -0700)]
korina: Fix conflict with global symbol desc_empty on x86.

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge tag 'mlx5-updates-2021-04-19' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Tue, 20 Apr 2021 23:14:02 +0000 (16:14 -0700)]
Merge tag 'mlx5-updates-2021-04-19' of git://git./linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2021-04-19

This patchset provides some updates to mlx5e and mlx5 SW steering drivers:

1) Tariq and Vladyslav they both provide some trivial update to mlx5e netdev.

The next 12 patches in the patchset are focused toward mlx5 SW steering:
2) 3 trivial cleanup patches

3) Dynamic Flex parser support:
   Flex parser is a HW parser that can support protocols that are not
    natively supported by the HCA, such as Geneve (TLV options) and GTP-U.
    There are 8 such parsers, and each of them can be assigned to parse a
    specific set of protocols.

4) Enable matching on Geneve TLV options

5) Use Flex parser for MPLS over UDP/GRE

6) Enable matching on tunnel GTP-U and GTP-U first extension
   header using

7) Improved QoS for SW steering internal QPair for a better insertion rate
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: felix: disable always guard band bit for TAS config
Xiaoliang Yang [Mon, 19 Apr 2021 10:25:30 +0000 (18:25 +0800)]
net: dsa: felix: disable always guard band bit for TAS config

ALWAYS_GUARD_BAND_SCH_Q bit in TAS config register is descripted as
this:
0: Guard band is implemented for nonschedule queues to schedule
   queues transition.
1: Guard band is implemented for any queue to schedule queue
   transition.

The driver set guard band be implemented for any queue to schedule queue
transition before, which will make each GCL time slot reserve a guard
band time that can pass the max SDU frame. Because guard band time could
not be set in tc-taprio now, it will use about 12000ns to pass 1500B max
SDU. This limits each GCL time interval to be more than 12000ns.

This patch change the guard band to be only implemented for nonschedule
queues to schedule queues transition, so that there is no need to reserve
guard band on each GCL. Users can manually add guard band time for each
schedule queues in their configuration if they want.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'net-generic-selftest-support'
David S. Miller [Tue, 20 Apr 2021 23:08:02 +0000 (16:08 -0700)]
Merge branch 'net-generic-selftest-support'

Oleksij Rempel says:

====================
provide generic net selftest support

changes v3:
- make more granular tests
- enable loopback for all PHYs by default
- fix allmodconfig build errors
- poll for link status update after switching to the loopback mode

changes v2:
- make generic selftests available for all networking devices.
- make use of net_selftest* on FEC, ag71xx and all DSA switches.
- add loopback support on more PHYs.

This patch set provides diagnostic capabilities for some iMX, ag71xx or
any DSA based devices. For proper functionality, PHY loopback support is
needed.
So far there is only initial infrastructure with basic tests.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: enable selftest support for all switches by default
Oleksij Rempel [Mon, 19 Apr 2021 13:01:06 +0000 (15:01 +0200)]
net: dsa: enable selftest support for all switches by default

Most of generic selftest should be able to work with probably all ethernet
controllers. The DSA switches are not exception, so enable it by default at
least for DSA.

This patch was tested with SJA1105 and AR9331.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ag71xx: make use of generic NET_SELFTESTS library
Oleksij Rempel [Mon, 19 Apr 2021 13:01:05 +0000 (15:01 +0200)]
net: ag71xx: make use of generic NET_SELFTESTS library

With this patch the ag71xx on Atheros AR9331 will able to run generic net
selftests.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: fec: make use of generic NET_SELFTESTS library
Oleksij Rempel [Mon, 19 Apr 2021 13:01:04 +0000 (15:01 +0200)]
net: fec: make use of generic NET_SELFTESTS library

With this patch FEC on iMX will able to run generic net selftests

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: add generic selftest support
Oleksij Rempel [Mon, 19 Apr 2021 13:01:03 +0000 (15:01 +0200)]
net: add generic selftest support

Port some parts of the stmmac selftest and reuse it as basic generic selftest
library. This patch was tested with following combinations:
- iMX6DL FEC -> AT8035
- iMX6DL FEC -> SJA1105Q switch -> KSZ8081
- iMX6DL FEC -> SJA1105Q switch -> KSZ9031
- AR9331 ag71xx -> AR9331 PHY
- AR9331 ag71xx -> AR9331 switch -> AR9331 PHY

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: genphy_loopback: add link speed configuration
Oleksij Rempel [Mon, 19 Apr 2021 13:01:02 +0000 (15:01 +0200)]
net: phy: genphy_loopback: add link speed configuration

In case of loopback, in most cases we need to disable autoneg support
and force some speed configuration. Otherwise, depending on currently
active auto negotiated link speed, the loopback may or may not work.

This patch was tested with following PHYs: TJA1102, KSZ8081, KSZ9031,
AT8035, AR9331.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: execute genphy_loopback() per default on all PHYs
Oleksij Rempel [Mon, 19 Apr 2021 13:01:01 +0000 (15:01 +0200)]
net: phy: execute genphy_loopback() per default on all PHYs

The generic loopback is really generic and is defined by the 802.3
standard, we should just mandate that drivers implement a custom
loopback if the generic one cannot work.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/mlx5: DR, Add support for isolate_vl_tc QP
Yevgeny Kliteynik [Mon, 2 Nov 2020 23:31:53 +0000 (01:31 +0200)]
net/mlx5: DR, Add support for isolate_vl_tc QP

When using SW steering, rule insertion rate depends on the RDMA RC QP
performance used for writing to the ICM. During stress this QP is competing
on the HW resources with all the other QPs that are used to send data.
To protect SW steering QP's performance in such cases, we set this QP to
use isolated VL. The VL number is reserved by FW and is not exposed to the
driver.
Support for this QP on isolated VL exists only when both force-loopback and
isolate_vl_tc capabilities are set.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Add support for force-loopback QP
Yevgeny Kliteynik [Mon, 2 Nov 2020 21:57:13 +0000 (23:57 +0200)]
net/mlx5: DR, Add support for force-loopback QP

When supported by the device, SW steering RoCE RC QP that is used to
write/read to/from ICM will be created with force-loopback attribute.
Such QP doesn't require GID index upon creation.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Add support for matching tunnel GTP-U
Yevgeny Kliteynik [Sun, 7 Feb 2021 02:40:16 +0000 (04:40 +0200)]
net/mlx5: DR, Add support for matching tunnel GTP-U

Enable matching on tunnel GTP-U and GTP-U first extension
header using dynamic flex parser.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Set flex parser for TNL_MPLS dynamically
Yevgeny Kliteynik [Sun, 7 Feb 2021 02:37:56 +0000 (04:37 +0200)]
net/mlx5: DR, Set flex parser for TNL_MPLS dynamically

Query the flex_parser id that's intended for TNL_MPLS
and use an appropriate flex parser for MPLS over UDP/GRE.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Add support for matching on geneve TLV option
Yevgeny Kliteynik [Sun, 7 Feb 2021 02:27:48 +0000 (04:27 +0200)]
net/mlx5: DR, Add support for matching on geneve TLV option

Enable matching on tunnel geneve TLV option using the flex parser.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Set STEv0 ICMP flex parser dynamically
Yevgeny Kliteynik [Sun, 7 Feb 2021 02:19:27 +0000 (04:19 +0200)]
net/mlx5: DR, Set STEv0 ICMP flex parser dynamically

Set the flex parser ID dynamicly for ICMP instead of relying
on hardcoded values.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Add support for dynamic flex parser
Yevgeny Kliteynik [Tue, 24 Nov 2020 17:48:09 +0000 (19:48 +0200)]
net/mlx5: DR, Add support for dynamic flex parser

Flex parser is a HW parser that can support protocols that are not
natively supported by the HCA, such as Geneve (TLV options) and GTP-U.
There are 8 such parsers, and each of them can be assigned to parse a
specific set of protocols.
This patch adds misc4 match params which allows using a correct flex parser
that was programmed to the required protocol.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Remove protocol-specific flex_parser_3 definitions
Muhammad Sammar [Wed, 21 Oct 2020 05:29:49 +0000 (08:29 +0300)]
net/mlx5: DR, Remove protocol-specific flex_parser_3 definitions

Remove MPLS specific fields from flex parser 3 layout.
Flex parser can be used for multiple protocols and should
not be hardcoded to a specific type.

Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: mlx5_ifc updates for flex parser
Yevgeny Kliteynik [Sun, 28 Feb 2021 21:48:27 +0000 (23:48 +0200)]
net/mlx5: mlx5_ifc updates for flex parser

Added the required definitions for supporting more protocols by flex parsers
(GTP-U, Geneve TLV options), and for using the right flex parser that was
configured for this protocol.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: E-Switch, Improve error messages in term table creation
Yevgeny Kliteynik [Sat, 6 Feb 2021 13:44:53 +0000 (15:44 +0200)]
net/mlx5: E-Switch, Improve error messages in term table creation

Add error code to the error messages and removed duplicated message:
if termination table creation failed, we already get an error message
in mlx5_eswitch_termtbl_create, so no need for the additional error print
in the calling function.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Fix SQ/RQ in doorbell bitmask
Yevgeny Kliteynik [Sat, 6 Feb 2021 20:44:41 +0000 (22:44 +0200)]
net/mlx5: DR, Fix SQ/RQ in doorbell bitmask

QP doorbell size is 16 bits.
Fixing sw steering's QP doorbel bitmask, which had 20 bits.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5: DR, Rename an argument in dr_rdma_segments
Yevgeny Kliteynik [Thu, 24 Sep 2020 17:58:16 +0000 (20:58 +0300)]
net/mlx5: DR, Rename an argument in dr_rdma_segments

Rename the argument to better reflect that the meaning is
not number of records, but wheather or not we should
ring the dorbell.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: RX, Add checks for calculated Striding RQ attributes
Tariq Toukan [Sun, 21 Jun 2020 18:35:34 +0000 (21:35 +0300)]
net/mlx5e: RX, Add checks for calculated Striding RQ attributes

Striding RQ attributes below are mutually dependent. An unaware
change to one might take the others out of the valid range derived
by the HW caps:
- The MPWQE size in bytes
- The number of strides in a MPWQE
- The stride size

Add checks to verify they are valid and comply to the HW spec
and SW assumptions/requirements.
This is not a fix, no particular issue exists today.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Fix possible non-initialized struct usage
Vladyslav Tarasiuk [Tue, 13 Apr 2021 08:15:49 +0000 (11:15 +0300)]
net/mlx5e: Fix possible non-initialized struct usage

If mlx5e_devlink_port_register() fails, driver may try to register
devlink health TX and RX reporters on non-registered devlink port.

Instead, create health reporters only if mlx5e_devlink_port_register()
does not fail. And destroy reporters only if devlink_port is registered.

Also, change mlx5e_get_devlink_port() behavior and return NULL in case
port is not registered to replicate devlink's wrapper when ndo is not
implemented.

Signed-off-by: Vladyslav Tarasiuk <vladyslavt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agonet/mlx5e: Fix lost changes during code movements
Tariq Toukan [Wed, 14 Apr 2021 17:43:33 +0000 (20:43 +0300)]
net/mlx5e: Fix lost changes during code movements

The changes done in commit [1] were missed by the code movements
done in [2], as they were developed in ~parallel.
Here we re-apply them.

[1] commit e4484d9df500 ("net/mlx5e: Enable striding RQ for Connect-X IPsec capable devices")
[2] commit b3a131c2a160 ("net/mlx5e: Move params logic into its dedicated file")

Fixes: b3a131c2a160 ("net/mlx5e: Move params logic into its dedicated file")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
3 years agoethtool: add missing EEPROM to list of messages
Jakub Kicinski [Mon, 19 Apr 2021 21:52:35 +0000 (14:52 -0700)]
ethtool: add missing EEPROM to list of messages

ETHTOOL_MSG_MODULE_EEPROM_GET is missing from the list of messages.
ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY is sadly a rather long name
so we need to adjust column length.

v2: use spaces (Andrew)

Fixes: c781ff12a2f3 ("ethtool: Allow network drivers to dump arbitrary EEPROM data")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoethtool: stats: clarify the initialization to ETHTOOL_STAT_NOT_SET
Jakub Kicinski [Mon, 19 Apr 2021 20:03:45 +0000 (13:03 -0700)]
ethtool: stats: clarify the initialization to ETHTOOL_STAT_NOT_SET

Ido suggests we add a comment about the init of stats to -1.
This is unlikely to be clear to first time readers.

Suggested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agobnxt: add more ethtool standard stats
Jakub Kicinski [Mon, 19 Apr 2021 20:02:42 +0000 (13:02 -0700)]
bnxt: add more ethtool standard stats

Michael suggest a few more stats we can expose.

$ ethtool -S eth0 --groups eth-mac
Standard stats for eth0:
eth-mac-FramesTransmittedOK: 902623288966
eth-mac-FramesReceivedOK: 28727667047
eth-mac-FrameCheckSequenceErrors: 1
eth-mac-AlignmentErrors: 0
eth-mac-OutOfRangeLengthField: 0
$ ethtool -S eth0 | grep '\(fcs\|align\|oor\)'
     rx_fcs_err_frames: 1
     rx_align_err_frames: 0
     tx_fcs_err_frames: 0

Suggested-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'tja1103-driver'
David S. Miller [Mon, 19 Apr 2021 23:19:44 +0000 (16:19 -0700)]
Merge branch 'tja1103-driver'

Radu Pirea says:

====================
TJA1103 driver

This small series adds the TJA1103 PHY driver.

Changes in v3:
 - use phy_read_mmd_poll_timeout instead of spin_until_cond
 - changed the phy name from a generic one to something specific
 - minor indentation change

Changes in v2:
 - implemented genphy_c45_pma_suspend/genphy_c45_pma_suspend
 - set default internal delays set to 2ns(90 degrees)
 - added "VEND1_" prefix to the register definitions
 - disable rxid in case of txid
 - disable txid in case of rxid
 - disable internal delays in rgmii mode
 - reduced max line length to 80 characters
 - rebased on top of net-next/master
 - use genphy_c45_loopback as .set_loopback callback
 - renamed the driver from nxp-c45 to nxp-c45-tja11xx
 - used phy phy_set_bits_mmd/phy_clear_bits_mmd instead on phy_write_mmd where
 I had to set/clear one bit.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agophy: nxp-c45: add driver for tja1103
Radu Pirea (NXP OSS) [Mon, 19 Apr 2021 16:14:00 +0000 (19:14 +0300)]
phy: nxp-c45: add driver for tja1103

Add driver for tja1103 driver and for future NXP C45 PHYs.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: phy: add genphy_c45_pma_suspend/resume
Radu Pirea (NXP OSS) [Mon, 19 Apr 2021 16:13:59 +0000 (19:13 +0300)]
net: phy: add genphy_c45_pma_suspend/resume

Add generic PMA suspend and resume callback functions for C45 PHYs.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: prestera: add support for AC3X 98DX3265 device
Vadym Kochan [Fri, 16 Apr 2021 23:17:51 +0000 (02:17 +0300)]
net: marvell: prestera: add support for AC3X 98DX3265 device

Add PCI match for AC3X 98DX3265 device which is supported by the current
driver and firmware.

Signed-off-by: Vadym Kochan <vkochan@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: fix memory leak during driver probe
Wong Vee Khee [Mon, 19 Apr 2021 11:25:30 +0000 (19:25 +0800)]
net: stmmac: fix memory leak during driver probe

On driver probe, kmemleak reported the following memory leak which was
due to allocated bitmap that was not being freed in stmmac_dvr_probe().

unreferenced object 0xffff9276014b13c0 (size 8):
  comm "systemd-udevd", pid 2143, jiffies 4294681112 (age 116.720s)
  hex dump (first 8 bytes):
    00 00 00 00 00 00 00 00                          ........
  backtrace:
    [<00000000c51e34b2>] stmmac_dvr_probe+0x1c0/0x440 [stmmac]
    [<00000000b530eb41>] intel_eth_pci_probe.cold+0x2b/0x14e [dwmac_intel]
    [<00000000b10f8929>] pci_device_probe+0xd2/0x150
    [<00000000fb254c74>] really_probe+0xf8/0x410
    [<0000000034128a59>] driver_probe_device+0x5d/0x150
    [<00000000016104d5>] device_driver_attach+0x53/0x60
    [<00000000cb18cd07>] __driver_attach+0x96/0x140
    [<00000000da9ffd5c>] bus_for_each_dev+0x7a/0xc0
    [<00000000af061a88>] bus_add_driver+0x184/0x1f0
    [<000000008be5c1c5>] driver_register+0x6c/0xc0
    [<0000000052b18a9e>] do_one_initcall+0x4d/0x210
    [<00000000154d4f07>] do_init_module+0x5c/0x230
    [<000000009b648d09>] load_module+0x2a5a/0x2d40
    [<000000000d86b76d>] __do_sys_finit_module+0xb5/0x120
    [<000000002b0cef95>] do_syscall_64+0x33/0x40
    [<0000000067b45bbb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: bba2556efad6 ("net: stmmac: Enable RX via AF_XDP zero-copy")
Cc: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'korina-next'
David S. Miller [Mon, 19 Apr 2021 22:58:15 +0000 (15:58 -0700)]
Merge branch 'korina-next'

Thomas Bogendoerfer says:

====================
net: Korina improvements

While converting Mikrotik RB532 support to use device tree I stumbled
over the korina ethernet driver, which used way too many MIPS specific
hacks. This series cleans this all up and adds support for device tree.

Changes in v6:
 - remove korina from resource names and adapt DT binding to it
 - removed superfluous braces around of_get_mac_address

Changes in v5:
  - fixed email address in binding document, which prevented sending it

Changes in v4:
  - improve error returns in mdio_read further
  - added clock name and improved clk handling
  - fixed binding errors

Changes in v3:
  - use readl_poll_timeout_atomic in mdio_wait
  - return -ETIMEDOUT, if mdio_wait failed
  - added DT binding and changed name to idt,3243x-emac
  - fixed usage of of_get_mac_address for net-next

Changes in v2:
  - added device tree support to get rid of idt_cpu_freq
  - fixed compile test on 64bit archs
  - fixed descriptor current address handling by storing/using mapped
    dma addresses (dma controller modifies current address)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: korina: Add DT bindings for IDT 79RC3243x SoCs
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:48 +0000 (00:19 +0200)]
dt-bindings: net: korina: Add DT bindings for IDT 79RC3243x SoCs

Add device tree bindings for ethernet controller integrated into
IDT 79RC3243x SoCs.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Make driver COMPILE_TESTable
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:47 +0000 (00:19 +0200)]
net: korina: Make driver COMPILE_TESTable

Move structs/defines for ethernet/dma register into driver, since they
are only used for this driver and remove any MIPS specific includes.
This makes it possible to COMPILE_TEST the driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Get mdio input clock via common clock framework
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:46 +0000 (00:19 +0200)]
net: korina: Get mdio input clock via common clock framework

With device tree clock is provided via CCF. For non device tree
use a maximum clock value to not overclock the PHY. The non device
tree usage will go away after platform is converted to DT.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Add support for device tree
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:45 +0000 (00:19 +0200)]
net: korina: Add support for device tree

If there is no mac address passed via platform data try to get it via
device tree and fall back to a random mac address, if all fail.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Only pass mac address via platform data
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:44 +0000 (00:19 +0200)]
net: korina: Only pass mac address via platform data

Get rid of access to struct korina_device by just passing the mac
address via platform data and use drvdata for passing netdev to remove
function.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Use DMA API
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:43 +0000 (00:19 +0200)]
net: korina: Use DMA API

Instead of messing with MIPS specific macros use DMA API for mapping
descriptors and skbs.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Remove nested helpers
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:42 +0000 (00:19 +0200)]
net: korina: Remove nested helpers

Remove helpers, which are only used in one call site.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Remove not needed cache flushes
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:41 +0000 (00:19 +0200)]
net: korina: Remove not needed cache flushes

Descriptors are mapped uncached so there is no need to do any cache
handling for them.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Use devres functions
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:40 +0000 (00:19 +0200)]
net: korina: Use devres functions

Simplify probe/remove code by using devm_ functions.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: korina: Fix MDIO functions
Thomas Bogendoerfer [Sun, 18 Apr 2021 22:19:39 +0000 (00:19 +0200)]
net: korina: Fix MDIO functions

Fixed MDIO functions to work reliable and not just by accident.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mtk_ppe_offload-fixes'
David S. Miller [Mon, 19 Apr 2021 22:55:05 +0000 (15:55 -0700)]
Merge branch 'mtk_ppe_offload-fixes'

Pablo Neira Ayuso says:

====================
mtk_ppe_offload fixes

A few incremental fixes for the initial flowtable offload support
and this driver:

1) Fix undefined reference to `dsa_port_from_netdev' due to missing
   dependencies in Kconfig, reported by Kbuild robot.

2) Missing mutex to serialize flow events via workqueue to the driver.

3) Handle FLOW_ACTION_VLAN_POP tag action.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: mtk_eth_soc: handle VLAN pop action
Pablo Neira Ayuso [Sun, 18 Apr 2021 21:11:45 +0000 (23:11 +0200)]
net: ethernet: mtk_eth_soc: handle VLAN pop action

Do not hit EOPNOTSUPP when flowtable offload provides a VLAN pop action.

Fixes: efce49dfe6a8 ("netfilter: flowtable: add vlan pop action offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: mtk_eth_soc: missing mutex
Pablo Neira Ayuso [Sun, 18 Apr 2021 21:11:44 +0000 (23:11 +0200)]
net: ethernet: mtk_eth_soc: missing mutex

Patch 2ed37183abb7 ("netfilter: flowtable: separate replace, destroy and
stats to different workqueues") splits the workqueue per event type. Add
a mutex to serialize updates.

Fixes: 502e84e2382d ("net: ethernet: mtk_eth_soc: add flow offloading support")
Reported-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: mtk_eth_soc: fix undefined reference to `dsa_port_from_netdev'
Pablo Neira Ayuso [Sun, 18 Apr 2021 21:11:43 +0000 (23:11 +0200)]
net: ethernet: mtk_eth_soc: fix undefined reference to `dsa_port_from_netdev'

Caused by:

 CONFIG_NET_DSA=m
 CONFIG_NET_MEDIATEK_SOC=y

mtk_ppe_offload.c:undefined reference to `dsa_port_from_netdev'

Fixes: 502e84e2382d ("net: ethernet: mtk_eth_soc: add flow offloading support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>