It seems there are cases where the interrupts are handled by another
entity (ie an IRQ controller embedded inside the PHY) and do not need
any other interraction from phylib. For this kind of PHYs, like the
RTL8366RB, add the genphy_handle_interrupt_no_ack() function which just
triggers the link state machine.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Cc: Michael Walle <michael@walle.cc>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Cc: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com> # VSC8514
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Also, remove the .did_interrupt() callback since it's not anymore used.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com> # VSC8514
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
According to the comment describing the phy_mac_interrupt() function, it
it intended to be used by MAC drivers which have noticed a link change
thus its use in the mscc PHY driver is improper and, most probably, was
added just because phy_trigger_machine() was not exported.
Now that we have acces to trigger the link state machine, use directly
the phy_trigger_machine() function to notify a link change detected by
the PHY driver.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of removing the .ack_interrupt() callback, we must replace
its occurrences (aka phy_clear_interrupt), from the 2 places where it is
called from (phy_enable_interrupts and phy_disable_interrupts), with
equivalent functionality.
This means that clearing interrupts now becomes something that the PHY
driver is responsible of doing, before enabling interrupts and after
clearing them. Make this driver follow the new contract.
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In an attempt to actually support shared IRQs in phylib, we now move the
responsibility of triggering the phylib state machine or just returning
IRQ_NONE, based on the IRQ status register, to the PHY driver. Having
3 different IRQ handling callbacks (.handle_interrupt(),
.did_interrupt() and .ack_interrupt() ) is confusing so let the PHY
driver implement directly an IRQ handler like any other device driver.
Make this driver follow the new convention.
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As a first step into making phylib and all PHY drivers to actually
have support for shared IRQs, make the .ack_interrupt() callback
optional.
After all drivers have been moved to implement the generic
interrupt handle, the phy_drv_supports_irq() check will be
changed again to only require the .handle_interrupts() callback.
Cc: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Andre Edich <andre.edich@microchip.com>
Cc: Antoine Tenart <atenart@kernel.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Divya Koppera <Divya.Koppera@microchip.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Marco Felsch <m.felsch@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Mathias Kresin <dev@kresin.me>
Cc: Maxim Kochetkov <fido_max@inbox.ru>
Cc: Michael Walle <michael@walle.cc>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Nisar Sayed <Nisar.Sayed@microchip.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Cc: Willy Liu <willy.liu@realtek.com>
Cc: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In case of a board which uses a shared IRQ we can easily end up with an
IRQ storm after a forced reboot.
For example, a 'reboot -f' will trigger a call to the .shutdown()
callbacks of all devices. Because phylib does not implement that hook,
the PHY is not quiesced, thus it can very well leave its IRQ enabled.
At the next boot, if that IRQ line is found asserted by the first PHY
driver that uses it, but _before_ the driver that is _actually_ keeping
the shared IRQ asserted is probed, the IRQ is not going to be
acknowledged, thus it will keep being fired preventing the boot process
of the kernel to continue. This is even worse when the second PHY driver
is a module.
To fix this, implement the .shutdown() callback and disable the
interrupts if these are used.
Note that we are still susceptible to IRQ storms if the previous kernel
exited with a panic or if the bootloader left the shared IRQ active, but
there is absolutely nothing we can do about these cases.
Cc: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Andre Edich <andre.edich@microchip.com>
Cc: Antoine Tenart <atenart@kernel.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Divya Koppera <Divya.Koppera@microchip.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Marco Felsch <m.felsch@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Mathias Kresin <dev@kresin.me>
Cc: Maxim Kochetkov <fido_max@inbox.ru>
Cc: Michael Walle <michael@walle.cc>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Nisar Sayed <Nisar.Sayed@microchip.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Cc: Willy Liu <willy.liu@realtek.com>
Cc: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These functions are currently used by phy_interrupt() to either signal
an error condition or to trigger the link state machine. In an attempt
to actually support shared PHY IRQs, export these two functions so that
the actual PHY drivers can use them.
Cc: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Andre Edich <andre.edich@microchip.com>
Cc: Antoine Tenart <atenart@kernel.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Divya Koppera <Divya.Koppera@microchip.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Kavya Sree Kotagiri <kavyasree.kotagiri@microchip.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Marco Felsch <m.felsch@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Mathias Kresin <dev@kresin.me>
Cc: Maxim Kochetkov <fido_max@inbox.ru>
Cc: Michael Walle <michael@walle.cc>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Nisar Sayed <Nisar.Sayed@microchip.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Cc: Willy Liu <willy.liu@realtek.com>
Cc: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
inet(6)_skb_parm was removed from sctp_input_cb by Commit a1dd2cf2f1
("sctp: allow changing transport encap_port by peer packets"), as it
thought sctp_input_cb->header is not used any more in SCTP.
syzbot reported a crash:
[ ] BUG: KASAN: use-after-free in decode_session6+0xe7c/0x1580
[ ]
[ ] Call Trace:
[ ] <IRQ>
[ ] dump_stack+0x107/0x163
[ ] kasan_report.cold+0x1f/0x37
[ ] decode_session6+0xe7c/0x1580
[ ] __xfrm_policy_check+0x2fa/0x2850
[ ] sctp_rcv+0x12b0/0x2e30
[ ] sctp6_rcv+0x22/0x40
[ ] ip6_protocol_deliver_rcu+0x2e8/0x1680
[ ] ip6_input_finish+0x7f/0x160
[ ] ip6_input+0x9c/0xd0
[ ] ipv6_rcv+0x28e/0x3c0
It was caused by sctp_input_cb->header/IP6CB(skb) still used in sctp rx
path decode_session6() but some members overwritten by sctp6_rcv().
This patch is to fix it by bring inet(6)_skb_parm back to sctp_input_cb
and not overwriting it in sctp4/6_rcv() and sctp_udp_rcv().
Reported-by: syzbot+5be8aebb1b7dfa90ef31@syzkaller.appspotmail.com
Fixes: a1dd2cf2f1 ("sctp: allow changing transport encap_port by peer packets")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Link: https://lore.kernel.org/r/136c1a7a419341487c504be6d1996928d9d16e02.1604472932.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kurt Kanzenbach says:
====================
Hirschmann Hellcreek DSA driver
this series adds a DSA driver for the Hirschmann Hellcreek TSN switch
IP. Characteristics of that IP:
* Full duplex Ethernet interface at 100/1000 Mbps on three ports
* IEEE 802.1Q-compliant Ethernet Switch
* IEEE 802.1Qbv Time-Aware scheduling support
* IEEE 1588 and IEEE 802.1AS support
That IP is used e.g. in
https://www.arrow.com/en/campaigns/arrow-kairos
Due to the hardware setup the switch driver is implemented using DSA. A special
tagging protocol is leveraged. Furthermore, this driver supports PTP and
hardware timestamping.
This work is part of the AccessTSN project: https://www.accesstsn.com/
The previous versions can be found here:
* https://lkml.kernel.org/netdev/20200618064029.32168-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20200710113611.3398-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20200723081714.16005-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20200820081118.10105-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20200901125014.17801-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20200904062739.3540-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20201004112911.25085-1-kurt@linutronix.de/
* https://lkml.kernel.org/netdev/20201028074221.29326-1-kurt@linutronix.de/
Changes since v7:
* Simplify tagging code (rebase to net-next)
* Pass info instead of ptr (Florian Fainelli)
* Fix yamllint warnings (Rob Herring)
Changes since v6:
* Add .tail_tag = true (Vladimir Oltean)
* Fix vlan_filtering=0 bridges (Vladimir Oltean)
* Enforce restrictions (Vladimir Oltean)
* Sort stuff alphabetically (Vladimir Oltean)
* Rename hellcreek.yaml to hirschmann,hellcreek.yaml
* Typo fixes
Changes since v5:
* Implement configure_vlan_while_not_filtering behavior (Vladimir Oltean)
* Minor cleanups
Changes since v4:
* Fix W=1 compiler warnings (kernel test robot)
* Add tags
Changes since v3:
* Drop TAPRIO support (David Miller)
=> Switch to mutexes due to the lack of hrtimers
* Use more specific compatible strings and add platform data (Andrew Lunn)
* Fix Kconfig ordering (Andrew Lunn)
Changes since v2:
* Make it compile by getting all requirements merged first (Jakub Kicinski, David Miller)
* Use "tsn" for TSN register set (Rob Herring)
* Fix DT binding issues (Rob Herring)
Changes since v1:
* Code simplifications (Florian Fainelli, Vladimir Oltean)
* Fix issues with hellcreek.yaml bindings (Florian Fainelli)
* Clear reserved field in ptp v2 event messages (Richard Cochran)
* Make use of generic ptp parsing function (Richard Cochran, Vladimir Oltean)
* Fix Kconfig (Florian Fainelli)
* Add tags (Florian Fainelli, Rob Herring, Richard Cochran)
Changes since RFC ordered by reviewers:
* Andrew Lunn
* Use dev_dbg for debug messages
* Get rid of __ function names where possible
* Use reverse xmas tree variable ordering
* Remove redundant/useless checks
* Improve comments e.g. for PTP
* Fix Kconfig ordering
* Make LED handling more generic and provide info via DT
* Setup advertisement of PHYs according to hardware
* Drop debugfs patch
* Jakub Kicinski
* Fix compiler warnings
* Florian Fainelli
* Switch to YAML DT bindings
* Richard Cochran
* Fix typo
* Add missing NULL checks
====================
Link: https://lore.kernel.org/r/20201103071101.3222-1-kurt@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Hirschmann is building devices for automation and networking. Add them to the
vendor prefixes.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The switch has two controllable I/Os which are usually connected to LEDs. This
is useful to immediately visually see the PTP status.
These provide two signals:
* is_gm
This LED can be activated if the current device is the grand master in that
PTP domain.
* sync_good
This LED can be activated if the current device is in sync with the network
time.
Expose these via the LED framework to be controlled via user space
e.g. linuxptp.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The switch has the ability to take hardware generated time stamps per port for
PTPv2 event messages in Rx and Tx direction. That is useful for achieving needed
time synchronization precision for TSN devices/switches. So add support for it.
There are two directions:
* RX
The switch has a single register per port to capture a timestamp. That
mechanism is not used due to correlation problems. If the software processing
is too slow and a PTPv2 event message is received before the previous one has
been processed, false timestamps will be captured. Therefore, the switch can
do "inline" timestamping which means it can insert the nanoseconds part of
the timestamp directly into the PTPv2 event message. The reserved field (4
bytes) is leveraged for that. This might not be in accordance with (older)
PTP standards, but is the only way to get reliable results.
* TX
In Tx direction there is no correlation problem, because the software and the
driver has to ensure that only one event message is "on the fly". However,
the switch provides also a mechanism to check whether a timestamp is
lost. That can only happen when a timestamp is read and at this point another
message is timestamped. So, that lost bit is checked just in case to indicate
to the user that the driver or the software is somewhat buggy.
Signed-off-by: Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The switch has internal PTP hardware clocks. Add support for it. There are three
clocks:
* Synchronized
* Syntonized
* Free running
Currently the synchronized clock is exported to user space which is a good
default for the beginning. The free running clock might be exported later
e.g. for implementing 802.1AS-2011/2020 Time Aware Bridges (TAB). The switch
also supports cross time stamping for that purpose.
The implementation adds support setting/getting the time as well as offset and
frequency adjustments. However, the clock only holds a partial timeofday
timestamp. This is why we track the seconds completely in software (see overflow
work and last_ts).
Furthermore, add the PTP multicast addresses into the FDB to forward that
packages only to the CPU port where they are processed by a PTP program.
Signed-off-by: Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a basic DSA driver for Hirschmann Hellcreek switches. Those switches are
implementing features needed for Time Sensitive Networking (TSN) such as support
for the Time Precision Protocol and various shapers like the Time Aware Shaper.
This driver includes basic support for networking:
* VLAN handling
* FDB handling
* Port statistics
* STP
* Phylink
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some switches rely on unique pvids to ensure port separation in
standalone mode, because they don't have a port forwarding matrix
configurable in hardware. So, setups like a group of 2 uppers with the
same VLAN, swp0.100 and swp1.100, will cause traffic tagged with VLAN
100 to be autonomously forwarded between these switch ports, in spite
of there being no bridge between swp0 and swp1.
These drivers need to prevent this from happening. They need to have
VLAN filtering enabled in standalone mode (so they'll drop frames tagged
with unknown VLANs) and they can only accept an 8021q upper on a port as
long as it isn't installed on any other port too. So give them the
chance to veto bad user requests.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
[Kurt: Pass info instead of ptr]
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Hirschmann Hellcreek TSN switches have a special tagging protocol for frames
exchanged between the CPU port and the master interface. The format is a one
byte trailer indicating the destination or origin port.
It's quite similar to the Micrel KSZ tagging. That's why the implementation is
based on that code.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It's possible that the first region picked for the new kernel will make
it impossible to fit the other segments in the required 32GB window,
especially if we have a very large initrd.
Instead of giving up, we can keep testing other regions for the kernel
until we find one that works.
Suggested-by: Ryan O'Leary <ryanoleary@google.com>
Signed-off-by: Benjamin Gwin <bgwin@google.com>
Link: https://lore.kernel.org/r/20201103201106.2397844-1-bgwin@google.com
Signed-off-by: Will Deacon <will@kernel.org>
mlx5_eq_async_int() uses in_irq() to decide whether eq::lock needs to be
acquired and released with spin_[un]lock() or the irq saving/restoring
variants.
The usage of in_*() in drivers is phased out and Linus clearly requested
that code which changes behaviour depending on context should either be
seperated or the context be conveyed in an argument passed by the caller,
which usually knows the context.
mlx5_eq_async_int() knows the context via the action argument already so
using it for the lock variant decision is a straight forward replacement
for in_irq().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
$ git ls-files *.[ch] | egrep drivers/net/ethernet/mellanox/ | \
xargs scripts/kernel-doc -none
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h:57:
warning: Enum value 'MLX5_FPGA_ACCESS_TYPE_I2C' not described ...
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h:57:
warning: Enum value 'MLX5_FPGA_ACCESS_TYPE_DONTCARE' not described ...
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h:118:
warning: Function parameter or member 'cb_arg' not described ...
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h:160:
warning: Function parameter or member 'conn' not described ...
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h:160:
warning: Excess function parameter 'fdev' description ...
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reported-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Stop room is a space that may be taken by WQEs in the SQ during a packet
transmit. It is used to check if next packet has enough room in the SQ.
Stop room guarantees this packet can be served and if not, the queue is
stopped, so no more packets are passed to the driver until it's ready.
Currently, stop_room size is calculated and validated upon tx queues
allocation. This makes it impossible to know if user provided valid
input for certain parameters when interface is down.
Instead, store stop_room in mlx5e_sq_param and create
mlx5e_validate_params(), to validate its fields upon user input even
when the interface is down.
Signed-off-by: Vladyslav Tarasiuk <vladyslavt@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Track buddy's used ICM memory, and free it if all
of the buddy's memory bacame unused.
Do this only for STEs.
MODIFY_ACTION buddies are much smaller, so in case there
is a large amount of modify_header actions, which result
in large amount of MODIFY_ACTION buddies, doing this
cleanup during sync will result in performance hit while
not freeing significant amount of memory.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Track the pool's hot ICM memory when freeing/allocating
chunk, so that when checking if the sync is required, just
check if the pool hot memory has reached the sync threshold.
Signed-off-by: Hamdan Igbaria <hamdani@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
When freeing chunks, we want to sync the steering
so that all the "hot" memory will be written to ICM
and all the chunks that are in the hot_list will be
actually destroyed.
When allocating from the pool, we don't have a need
to sync the steering, as we're not freeing anything,
and sync might just hurt the performance in terms of
flow-per-second offloaded.
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Till now in order to manage the ICM memory we used bucket
mechanism, which kept a bucket per specified size (sizes were
between 1 block to 2^21 blocks).
Now changing that with buddy-system mechanism, which gives us much
more flexible way to manage the ICM memory.
Its biggest advantage over the bucket is by using the same ICM memory
area for all the sizes of blocks, which reduces the memory consumption.
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Add implementation of SW Steering variation of buddy allocator.
The buddy system for ICM memory uses 2 main data structures:
- Bitmap per order, that keeps the current state of allocated
blocks for this order
- Indicator for the number of available blocks per each order
Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Remove flex parser from the matcher function names since
the matcher should not be aware of such HW specific details.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
We will support multiple STE versions.
The existing naming is not suitable for newer versions.
Removed the HW specific details and renamed with a more
general names.
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This Kunit update for Linux 5.10-rc3 consists of several kunit_tool
and documentation fixes.
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Merge tag 'linux-kselftest-kunit-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit fixes from Shuah Khan:
"Several kunit_tool and documentation fixes"
* tag 'linux-kselftest-kunit-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tools: fix kunit_tool tests for parsing test plans
Documentation: kunit: Update Kconfig parts for KUNIT's module support
kunit: test: fix remaining kernel-doc warnings
kunit: Don't fail test suites if one of them is empty
kunit: Fix kunit.py --raw_output option
- Fix off-by-one error in retrieving the context buffer for trace_printk()
- Fix off-by-one error in stack nesting limit
- Fix recursion to not make all NMI code false positive as recursing
- Stop losing events in function tracing when transitioning between irq context
- Stop losing events in ring buffer when transitioning between irq context
- Fix return code of error pointer in parse_synth_field() to prevent
NULL pointer dereference.
- Fix false positive of NMI recursion in kprobe event handling
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Merge tag 'trace-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix off-by-one error in retrieving the context buffer for
trace_printk()
- Fix off-by-one error in stack nesting limit
- Fix recursion to not make all NMI code false positive as recursing
- Stop losing events in function tracing when transitioning between irq
context
- Stop losing events in ring buffer when transitioning between irq
context
- Fix return code of error pointer in parse_synth_field() to prevent
NULL pointer dereference.
- Fix false positive of NMI recursion in kprobe event handling
* tag 'trace-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
kprobes: Tell lockdep about kprobe nesting
tracing: Make -ENOMEM the default error for parse_synth_field()
ring-buffer: Fix recursion protection transitions between interrupt context
tracing: Fix the checking of stackidx in __ftrace_trace_stack
ftrace: Handle tracing when switching between context
ftrace: Fix recursion check for NMI test
tracing: Fix out of bounds write in get_trace_buf
A few more merge window regressions that didn't make rc1:
- New validation in the DMA layer triggers wrong use of the DMA layer in
rxe, siw and rdmavt
- Accidental change of a hypervisor facing ABI when widening the port
speed u8 to u16 in vmw_pvrdma
- Memory leak on error unwind in SRP target
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A few more merge window regressions that didn't make rc1:
- New validation in the DMA layer triggers wrong use of the DMA layer
in rxe, siw and rdmavt
- Accidental change of a hypervisor facing ABI when widening the port
speed u8 to u16 in vmw_pvrdma
- Memory leak on error unwind in SRP target"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/srpt: Fix typo in srpt_unregister_mad_agent docstring
RDMA/vmw_pvrdma: Fix the active_speed and phys_state value
IB/srpt: Fix memory leak in srpt_add_one
RDMA: Fix software RDMA drivers for dma mapping error
A small collection of driver specific fixes that have come in since the
merge window, nothing too major here but all good to ahve.
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Merge tag 'spi-fix-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of driver specific fixes that have come in since
the merge window, nothing too major here but all good to have"
* tag 'spi-fix-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fsl-dspi: fix wrong pointer in suspend/resume
spi: bcm2835: fix gpio cs level inversion
spi: imx: fix runtime pm support for !CONFIG_PM
An addition to MAINTAINERS plus a fix for a nasty bootstrapping problem
which caused problems when we need to read the voltage of a regulator
that is not yet available during initialization, we were not correctly
distinguishing between this case and the case where a regulator is put
into a bypass mode.
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Merge tag 'regulator-fix-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"An addition to MAINTAINERS plus a fix for a nasty bootstrapping
problem which caused problems when we need to read the voltage of a
regulator that is not yet available during initialization, we were not
correctly distinguishing between this case and the case where a
regulator is put into a bypass mode"
* tag 'regulator-fix-v5.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: defer probe when trying to get voltage from unresolved supply
MAINTAINERS: Add entry for Qualcomm IPQ4019 VQMMC regulator
- Unify the handling of managed and stateless device links in the
runtime PM framework and prevent runtime PM references to devices
from being leaked after device link removal (Rafael Wysocki).
- Fix two mistakes in the cpuidle documentation (Julia Lawall).
- Prevent the schedutil cpufreq governor from missing policy
limits updates in some cases (Viresh Kumar).
- Prevent static OPPs from being dropped by mistake (Viresh Kumar).
- Prevent helper function in the OPP framework from returning
prematurely (Viresh Kumar).
- Prevent opp_table_lock from being held too long during removal
of OPP tables with no more active references (Viresh Kumar).
- Drop redundant semicolon from the Intel RAPL power capping
driver (Tom Rix).
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Merge tag 'pm-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix the device links support in runtime PM, correct mistakes in
the cpuidle documentation, fix the handling of policy limits changes
in the schedutil cpufreq governor, fix assorted issues in the OPP
(operating performance points) framework and make one janitorial
change.
Specifics:
- Unify the handling of managed and stateless device links in the
runtime PM framework and prevent runtime PM references to devices
from being leaked after device link removal (Rafael Wysocki).
- Fix two mistakes in the cpuidle documentation (Julia Lawall).
- Prevent the schedutil cpufreq governor from missing policy limits
updates in some cases (Viresh Kumar).
- Prevent static OPPs from being dropped by mistake (Viresh Kumar).
- Prevent helper function in the OPP framework from returning
prematurely (Viresh Kumar).
- Prevent opp_table_lock from being held too long during removal of
OPP tables with no more active references (Viresh Kumar).
- Drop redundant semicolon from the Intel RAPL power capping driver
(Tom Rix)"
* tag 'pm-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: runtime: Resume the device earlier in __device_release_driver()
PM: runtime: Drop pm_runtime_clean_up_links()
PM: runtime: Drop runtime PM references to supplier on link removal
powercap/intel_rapl: remove unneeded semicolon
Documentation: PM: cpuidle: correct path name
Documentation: PM: cpuidle: correct typo
cpufreq: schedutil: Don't skip freq update if need_freq_update is set
opp: Reduce the size of critical section in _opp_table_kref_release()
opp: Fix early exit from dev_pm_opp_register_set_opp_helper()
opp: Don't always remove static OPPs in _of_add_opp_table_v1()
Recent refactoring of memblock iterators has broken initialization of
highmem on arm and xtensa because it changed the way beginning and end of
memory regions are rounded to PFNs. This fix restores the original
behaviour.
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Merge tag 'fixes-2020-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull highmem initialization fix from Mike Rapoport:
"Fix highmem initialization on arm and xtensa
Recent refactoring of memblock iterators has broken initialization of
highmem on arm and xtensa because it changed the way beginning and end
of memory regions are rounded to PFNs. This fix restores the original
behaviour"
* tag 'fixes-2020-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
ARM, xtensa: highmem: avoid clobbering non-page aligned memory reservations
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Merge tag 'gfs2-v5.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fixes from Andreas Gruenbacher:
"Various gfs2 fixes"
* tag 'gfs2-v5.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Wake up when sd_glock_disposal becomes zero
gfs2: Don't call cancel_delayed_work_sync from within delete work function
gfs2: check for live vs. read-only file system in gfs2_fitrim
gfs2: don't initialize statfs_change inodes in spectator mode
gfs2: Split up gfs2_meta_sync into inode and rgrp versions
gfs2: init_journal's undo directive should also undo the statfs inodes
gfs2: Add missing truncate_inode_pages_final for sd_aspace
gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free
