Stefano Garzarella says:
====================
vsock/virtio: add support for device suspend/resume
Vilas reported that virtio-vsock no longer worked properly after
suspend/resume (echo mem >/sys/power/state).
It was impossible to connect to the host and vice versa.
Indeed, the support has never been implemented.
This series implement .freeze and .restore callbacks of struct virtio_driver
to support device suspend/resume.
The first patch factors our the code to initialize and delete VQs.
The second patch uses that code to support device suspend/resume.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
====================
Link: https://lore.kernel.org/r/20220428132241.152679-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement .freeze and .restore callbacks of struct virtio_driver
to support device suspend/resume.
During suspension all connected sockets are reset and VQs deleted.
During resume the VQs are re-initialized.
Reported by: Vilas R K <vilas.r.k@intel.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add virtio_vsock_vqs_init() and virtio_vsock_vqs_del() with the code
that was in virtio_vsock_probe() and virtio_vsock_remove to initialize
and delete VQs.
These new functions will be used in the next commit to support device
suspend/resume
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Felix VSC9959 switch in NXP LS1028A supports the tc-gate action
which enforced time-based access control per stream. A stream as seen by
this switch is identified by {MAC DA, VID}.
We use the standard forwarding selftest topology with 2 host interfaces
and 2 switch interfaces. The host ports must require timestamping non-IP
packets and supporting tc-etf offload, for isochron to work. The
isochron program monitors network sync status (ptp4l, phc2sys) and
deterministically transmits packets to the switch such that the tc-gate
action either (a) always accepts them based on its schedule, or
(b) always drops them.
I tried to keep as much of the logic that isn't specific to the NXP
LS1028A in a new tsn_lib.sh, for future reuse. This covers
synchronization using ptp4l and phc2sys, and isochron.
The cycle-time chosen for this selftest isn't particularly impressive
(and the focus is the functionality of the switch), but I didn't really
know what to do better, considering that it will mostly be run during
debugging sessions, various kernel bloatware would be enabled, like
lockdep, KASAN, etc, and we certainly can't run any races with those on.
I tried to look through the kselftest framework for other real time
applications and didn't really find any, so I'm not sure how better to
prepare the environment in case we want to go for a lower cycle time.
At the moment, the only thing the selftest is ensuring is that dynamic
frequency scaling is disabled on the CPU that isochron runs on. It would
probably be useful to have a blacklist of kernel config options (checked
through zcat /proc/config.gz) and some cyclictest scripts to run
beforehand, but I saw none of those.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20220501112953.3298973-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It's expensive to make a copy of 40B struct iov_iter to the point it
was taking 0.2-0.5% of all cycles in my tests. iov_iter_revert() should
be fine as it's a simple case without nested reverts/truncates.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a7e1690c00c5dfe700c30eb9a8a81ec59f6545dd.1650884401.git.asml.silence@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current memory failure code in the debugfs returns -ENOSPC. This is
normally used for indicating that there is no space left on the
device and is not applicable for memory allocation failures.
Replace this with -ENOMEM.
Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Link: https://lore.kernel.org/r/20220430194656.44357-1-dossche.niels@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Colin Foster says:
====================
ocelot stats improvement
A couple of pick-ups after f187bfa6f35 ("net: ethernet: ocelot: remove
the need for num_stats initializer") - one addresses a warning
patchwork flagged about operator precedence when using macro arguments.
The other is a reduction of unnecessary memory allocation.
====================
Link: https://lore.kernel.org/r/20220430232327.4091825-1-colin.foster@in-advantage.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 2f187bfa6f ("net: ethernet: ocelot: remove the need for num_stats
initializer") added a macro that patchwork warned it lacked parentheses
around an argument. Correct this mistake.
Fixes: 2f187bfa6f ("net: ethernet: ocelot: remove the need for num_stats initializer")
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 2f187bfa6f ("net: ethernet: ocelot: remove the need for num_stats
initializer") added a flags field to the ocelot stats structure. The same
behavior can be achieved without this additional field taking up extra
memory.
Remove this structure element to free up RAM
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
====================
pull-request: ieee802154-next 2022-05-01
Miquel Raynal landed two patch series bundled in this pull request.
The first series re-works the symbol duration handling to better
accommodate the needs of the various phy layers in ieee802154.
In the second series Miquel improves th errors handling from drivers
up mac802154. THis streamlines the error handling throughout the
ieee/mac802154 stack in preparation for sync TX to be introduced for
MLME frames.
====================
Link: https://lore.kernel.org/r/20220501194614.1198325-1-stefan@datenfreihafen.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub Kicinski says:
====================
net: more heap allocation and split of rtnl_newlink()
Small refactoring of rtnl_newlink() to fix a stack usage warning
and make the function shorter.
====================
Link: https://lore.kernel.org/r/20220429235508.268349-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
__rtnl_newlink() is 250LoC, but has a few clear sections.
Move the part which creates a new netdev to a separate
function.
For ease of review code will be moved in the next change.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Commit a293974590 ("rtnetlink: avoid frame size warning in rtnl_newlink()")
moved to allocating the largest attribute array of rtnl_newlink()
on the heap. Kalle reports the stack has grown above 1k again:
net/core/rtnetlink.c:3557:1: error: the frame size of 1104 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Move more attrs to the heap, wrap them in a struct.
Don't bother with linkinfo, it's referenced a lot and we take
its size so it's awkward to move, plus it's small (6 elements).
Reported-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Andrew Lunn says:
====================
Use MMD/C45 helpers
MDIO busses can perform two sorts of bus transaction, defined in
clause 22 and clause 45 of 802.3. This results in two register
addresses spaces. The current driver structure for indicating if C22
or C45 should be used is messy, and many C22 only bus drivers will
wrongly interpret a C45 transaction as a C22 transaction.
This patchset is a preparation step to cleanup the situation. It
converts MDIO bus users to make use of existing _mmd and _c45 helpers
to perform accesses to C45 registers. This will later allow C45 and
C22 to be kept separate.
====================
Link: https://lore.kernel.org/r/20220430173037.156823-1-andrew@lunn.ch
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stop using the helpers to construct a special mdio address which
indicates C45. Instead use the C45 accessors, which will call the
busses C45 specific read/write API.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stop using the helpers to construct a special phy address which
indicates C45. Instead use the C45 accessors, which will call the
busses C45 specific read/write API.
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Rather than construct special phy device addresses to access C45
registers, use the mmd helpers. These will directly call the C45 API
of the MDIO bus driver.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stop using the helpers to construct a special phy address which
indicates C45. Instead use the C45 accessors, which will call the
busses C45 specific read/write API.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Stop using the helpers to construct a special phy address which
indicates C45. Instead use the C45 accessors, which will call the
busses C45 specific read/write API.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'linux-can-next-for-5.19-20220502' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2022-05-02
this is a pull request of 9 patches for net-next/master.
The first patch is by Biju Das and documents renesas,r9a07g043-canfd
support in the renesas,rcar-canfd bindings document.
Jakub Kicinski's patch removes a copy of the NAPI_POLL_WEIGHT define
from the m_can driver.
The last 7 patches all target the ctucanfd driver. Pavel Pisa provides
2 patch which update the documentation. 2 patches by Jiapeng Chong
remove unneeded includes and error messages. And another 3 patches by
Pavel Pisa to further clean up the driver (remove inline keyword,
remove unneeded debug statements, and remove unneeded module parameters).
linux-can-next-for-5.19-20220502
* tag 'linux-can-next-for-5.19-20220502' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: ctucanfd: remove PCI module debug parameters
can: ctucanfd: remove debug statements
can: ctucanfd: remove inline keyword from local static functions
can: ctucanfd: ctucan_platform_probe(): remove unnecessary print function dev_err()
can: ctucanfd: remove unused including <linux/version.h>
docs: networking: device drivers: can: ctucanfd: update author e-mail
docs: networking: device drivers: can: add ctucanfd to index
can: m_can: remove a copy of the NAPI_POLL_WEIGHT define
dt-bindings: can: renesas,rcar-canfd: Document RZ/G2UL support
====================
Link: https://lore.kernel.org/r/20220502075914.1905039-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
VxLAN belongs to UDP-based encapsulation protocol. Inner TSO for VxLAN
packet with udpcsum requires offloading of outer header csum.
The device doesn't support outer header csum offload. However, inner TSO
for VxLAN with udpcsum can still work with GSO_PARTIAL offload, which
means outer udp csum computed by stack and inner tcp segmentation finished
by hardware. Thus, the patch enable features "NETIF_F_GSO_UDP_TUNNEL_CSUM"
and "NETIF_F_GSO_PARTIAL" and set gso_partial_features.
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220430231150.175270-1-simon.horman@corigine.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add a boilerplate test loop to run all tests in
vrf_strict_mode_test.sh. Add a -t flag that allows a selected test to
run. Remove the vrf_strict_mode_tests function which is now unused.
Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220429164658.GA656707@jaehee-ThinkPad-X1-Extreme
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Peilin Ye says:
====================
devices always NETIF_F_LLTX
v1: https://lore.kernel.org/netdev/cover.1650580763.git.peilin.ye@bytedance.com/
change since v1:
- deleted "depends on patch..." in [1/2]'s commit message
This patchset depends on these fixes [1], which has been merged into
net-next. Since o_seqno is now atomic_t, we can always turn on
NETIF_F_LLTX for [IP6]GRE[TAP] devices, since we no longer need the TX
lock (&txq->_xmit_lock).
We could probably do the same thing to [IP6]ERSPAN devices as well, but
I'm not familiar with them yet. For example, ERSPAN devices are
initialized as |= GRE_FEATURES in erspan_tunnel_init(), but I don't see
IP6ERSPAN devices being initialized as |= GRE6_FEATURES. Where should we
initialize IP6ERSPAN devices' ->features? Please suggest if I'm missing
something, thanks!
[1] https://lore.kernel.org/netdev/cover.1650575919.git.peilin.ye@bytedance.com/
====================
Link: https://lore.kernel.org/r/cover.1651207788.git.peilin.ye@bytedance.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Recently we made o_seqno atomic_t. Stop special-casing TUNNEL_SEQ, and
always mark IP6GRE[TAP] devices as NETIF_F_LLTX, since we no longer need
the TX lock (&txq->_xmit_lock).
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Recently we made o_seqno atomic_t. Stop special-casing TUNNEL_SEQ, and
always mark GRE[TAP] devices as NETIF_F_LLTX, since we no longer need
the TX lock (&txq->_xmit_lock).
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The print function dev_err() is redundant because platform_get_irq()
already prints an error.
Eliminate the follow coccicheck warnings:
| drivers/net/can/ctucanfd/ctucanfd_platform.c:67:2-9:
| line 67 is redundant because platform_get_irq() already prints an error.
Link: https://lore.kernel.org/all/20220421203242.7335-1-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Acked-by: Pave Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Defining local versions of NAPI_POLL_WEIGHT with the same values in
the drivers just makes refactoring harder.
Link: https://lore.kernel.org/all/20220429174446.196655-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Alexandru Tachici says:
====================
net: phy: adin1100: Add initial support for ADIN1100 industrial PHY
The ADIN1100 is a low power single port 10BASE-T1L transceiver designed for
industrial Ethernet applications and is compliant with the IEEE 802.3cg
Ethernet standard for long reach 10 Mb/s Single Pair Ethernet.
The ADIN1100 uses Auto-Negotiation capability in accordance
with IEEE 802.3 Clause 98, providing a mechanism for
exchanging information between PHYs to allow link partners to
agree to a common mode of operation.
The concluded operating mode is the transmit amplitude mode and
master/slave preference common across the two devices.
Both device and LP advertise their ability and request for
increased transmit at:
- BASE-T1 autonegotiation advertisement register [47:32]\
Clause 45.2.7.21 of Standard 802.3
- BIT(13) - 10BASE-T1L High Level Transmit Operating Mode Ability
- BIT(12) - 10BASE-T1L High Level Transmit Operating Mode Request
For 2.4 Vpp (high level transmit) operation, both devices need
to have the High Level Transmit Operating Mode Ability bit set,
and only one of them needs to have the High Level Transmit
Operating Mode Request bit set. Otherwise 1.0 Vpp transmit level
will be used.
Settings for eth1:
Supported ports: [ TP MII ]
Supported link modes: 10baseT1L/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT1L/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT1L/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 10Mb/s
Duplex: Full
Auto-negotiation: on
master-slave cfg: preferred slave
master-slave status: slave
Port: Twisted Pair
PHYAD: 0
Transceiver: external
MDI-X: Unknown
Link detected: yes
SQI: 7/7
1. Add basic support for ADIN1100.
Alexandru Ardelean (1):
net: phy: adin1100: Add initial support for ADIN1100 industrial PHY
1. Added 10baset-T1L link modes.
2. Added 10-BasetT1L registers.
3. Added Base-T1 auto-negotiation registers. For Base-T1 these
registers decide master/slave status and TX voltage of the
device and link partner.
4. Added 10BASE-T1L support in phy-c45.c. Now genphy functions will call
Base-T1 functions where registers don't match, like the auto-negotiation ones.
5. Convert MSE to SQI using a predefined table and allow user access
through ethtool.
6. DT bindings for the 2.4 Vpp transmit mode.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a tristate property to advertise desired transmit level.
If the device supports the 2.4 Vpp operating mode for 10BASE-T1L,
as defined in 802.3gc, and the 2.4 Vpp transmit voltage operation
is desired, property should be set to 1. This property is used
to select whether Auto-Negotiation advertises a request to
operate the 10BASE-T1L PHY in increased transmit level mode.
If property is set to 1, the PHY shall advertise a request
to operate the 10BASE-T1L PHY in increased transmit level mode.
If property is set to zero, the PHY shall not advertise
a request to operate the 10BASE-T1L PHY in increased transmit level mode.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Determine the SQI from MSE using a predefined table
for the 10BASE-T1L.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ADIN1100 is a low power single port 10BASE-T1L transceiver designed for
industrial Ethernet applications and is compliant with the IEEE 802.3cg
Ethernet standard for long reach 10 Mb/s Single Pair Ethernet.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is needed because the BASE-T1 uses different registers
for status, control and advertisement to those already
employed in the existing phy-c45 functions.
Where required, genphy_c45 functions will now check whether
the device supports BASE-T1 and use the specific registers
instead: 45.2.7.19 BASE-T1 AN control register,
45.2.7.20 BASE-T1 AN status, 45.2.7.21 BASE-T1 AN
advertisement register, 45.2.7.22 BASE-T1 AN LP Base
Page ability register, 45.2.1.185 BASE-T1 PMA/PMD control
register.
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added BASE-T1 AN advertisement register (Registers 7.514, 7.515, and
7.516) and BASE-T1 AN LP Base Page ability register (Registers 7.517,
7.518, and 7.519).
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The 802.3gc specification defines the 10-BaseT1L link
mode for ethernet trafic on twisted wire pair.
PMA status register can be used to detect if the phy supports
2.4 V TX level and PCS control register can be used to
enable/disable PCS level loopback.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add entry for the 10base-T1L full duplex mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All but 5 methods in dsa_swith_ops use tabs for indentation.
Change the 5 methods that break this rule.
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
veth netdevice defines own rx queues and allocates array containing
up to 4095 ~750-bytes-long 'struct veth_rq' elements. Such allocation
is quite huge and should be accounted to memcg.
Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pavel Begunkov says:
====================
UDP sock_wfree optimisations
The series is not UDP specific but that the main beneficiary. 2/3 saves one
atomic in sock_wfree() and on top 3/3 removes an extra barrier.
Tested with UDP over dummy netdev, 2038491 -> 2099071 req/s (or around +3%).
note: in regards to 1/3, there is a "Should agree with poll..." comment
that I don't completely get, and there is no git history to explain it.
Though I can't see how it could rely on having the second check without
racing with tasks woken by wake_up*().
The series was split from a larger patchset, see
https://lore.kernel.org/netdev/cover.1648981570.git.asml.silence@gmail.com/
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
