Parav Pandit Says:
=================
This patchset introduces support for mlx5 subfunction (SF).
A subfunction is a lightweight function that has a parent PCI function on
which it is deployed. mlx5 subfunction has its own function capabilities
and its own resources. This means a subfunction has its own dedicated
queues(txq, rxq, cq, eq). These queues are neither shared nor stolen from
the parent PCI function.
When subfunction is RDMA capable, it has its own QP1, GID table and rdma
resources neither shared nor stolen from the parent PCI function.
A subfunction has dedicated window in PCI BAR space that is not shared
with the other subfunctions or parent PCI function. This ensures that all
class devices of the subfunction accesses only assigned PCI BAR space.
A Subfunction supports eswitch representation through which it supports tc
offloads. User must configure eswitch to send/receive packets from/to
subfunction port.
Subfunctions share PCI level resources such as PCI MSI-X IRQs with
their other subfunctions and/or with its parent PCI function.
Patch summary:
--------------
Patch 1 to 4 prepares devlink
patch 5 to 7 mlx5 adds SF device support
Patch 8 to 11 mlx5 adds SF devlink port support
Patch 12 and 14 adds documentation
Patch-1 prepares code to handle multiple port function attributes
Patch-2 introduces devlink pcisf port flavour similar to pcipf and pcivf
Patch-3 adds port add and delete driver callbacks
Patch-4 adds port function state get and set callbacks
Patch-5 mlx5 vhca event notifier support to distribute subfunction
state change notification
Patch-6 adds SF auxiliary device
Patch-7 adds SF auxiliary driver
Patch-8 prepares eswitch to handler SF vport
Patch-9 adds eswitch helpers to add/remove SF vport
Patch-10 implements devlink port add/del callbacks
Patch-11 implements devlink port function get/set callbacks
Patch-12 to 14 adds documentation
Patch-12 added mlx5 port function documentation
Patch-13 adds subfunction documentation
Patch-14 adds mlx5 subfunction documentation
Subfunction support is discussed in detail in RFC [1] and [2].
RFC [1] and extension [2] describes requirements, design and proposed
plumbing using devlink, auxiliary bus and sysfs for systemd/udev
support. Functionality of this patchset is best explained using real
examples further below.
overview:
--------
A subfunction can be created and deleted by a user using devlink port
add/delete interface.
A subfunction can be configured using devlink port function attribute
before its activated.
When a subfunction is activated, it results in an auxiliary device on
the host PCI device where it is deployed. A driver binds to the
auxiliary device that further creates supported class devices.
example subfunction usage sequence:
-----------------------------------
Change device to switchdev mode:
$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
Add a devlink port of subfunction flavour:
$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
Configure mac address of the port function:
$ devlink port function set ens2f0npf0sf88 hw_addr 00:00:00:00:88:88
Now activate the function:
$ devlink port function set ens2f0npf0sf88 state active
Now use the auxiliary device and class devices:
$ devlink dev show
pci/0000:06:00.0
auxiliary/mlx5_core.sf.4
$ ip link show
127: ens2f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 24:8a:07:b3:d1:12 brd ff:ff:ff:ff:ff:ff
altname enp6s0f0np0
129: p0sf88: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 00:00:00:00:88:88 brd ff:ff:ff:ff:ff:ff
$ rdma dev show
43: rdmap6s0f0: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d112 sys_image_guid 248a:0703:00b3:d112
44: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112
After use inactivate the function:
$ devlink port function set ens2f0npf0sf88 state inactive
Now delete the subfunction port:
$ devlink port del ens2f0npf0sf88
[1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/
[2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2
=================
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAmALKDwACgkQSD+KveBX
+j7qjQf6A1moPhhIlXROCzaJUjlAj2U291LWBveU+I6na6fjYjAAWHYwfv0YKQpo
Qb0NRt+9abgEpGidc4hOwIJKhK+vlWrQuehRt83aAfAwaN3OEeGuNllniWo821Hj
sNiJfSC/DslOlQSxKLsAs3Fduy/sV3GN9Zv7hEwOFgEr5QvB2c6H1XiypVP2Ecsd
ZXC3SuEWxIoRtfXEkTkJne9LNoiDChlvT1FR/z75h8HUBdAOjzBTQzBbM+8M4Msw
8aKUPya3FMRAPWsOgPhkpU0xTtH2Mi7MC9TlwiWmrK4Q3uvesIav8pVf7r3GNAZA
sipIZ4gP0M5SiCaZa8rIBpTXBHxmvg==
=jEG4
-----END PGP SIGNATURE-----
Merge tag 'mlx5-updates-2021-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 subfunction support
Parav Pandit says:
This patchset introduces support for mlx5 subfunction (SF).
A subfunction is a lightweight function that has a parent PCI function on
which it is deployed. mlx5 subfunction has its own function capabilities
and its own resources. This means a subfunction has its own dedicated
queues(txq, rxq, cq, eq). These queues are neither shared nor stolen from
the parent PCI function.
When subfunction is RDMA capable, it has its own QP1, GID table and rdma
resources neither shared nor stolen from the parent PCI function.
A subfunction has dedicated window in PCI BAR space that is not shared
with the other subfunctions or parent PCI function. This ensures that all
class devices of the subfunction accesses only assigned PCI BAR space.
A Subfunction supports eswitch representation through which it supports tc
offloads. User must configure eswitch to send/receive packets from/to
subfunction port.
Subfunctions share PCI level resources such as PCI MSI-X IRQs with
their other subfunctions and/or with its parent PCI function.
Subfunction support is discussed in detail in RFC [1] and [2].
RFC [1] and extension [2] describes requirements, design and proposed
plumbing using devlink, auxiliary bus and sysfs for systemd/udev
support. Functionality of this patchset is best explained using real
examples further below.
overview:
--------
A subfunction can be created and deleted by a user using devlink port
add/delete interface.
A subfunction can be configured using devlink port function attribute
before its activated.
When a subfunction is activated, it results in an auxiliary device on
the host PCI device where it is deployed. A driver binds to the
auxiliary device that further creates supported class devices.
example subfunction usage sequence:
-----------------------------------
Change device to switchdev mode:
$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev
Add a devlink port of subfunction flavour:
$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
Configure mac address of the port function:
$ devlink port function set ens2f0npf0sf88 hw_addr 00:00:00:00:88:88
Now activate the function:
$ devlink port function set ens2f0npf0sf88 state active
Now use the auxiliary device and class devices:
$ devlink dev show
pci/0000:06:00.0
auxiliary/mlx5_core.sf.4
$ ip link show
127: ens2f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 24:8a:07:b3:d1:12 brd ff:ff:ff:ff:ff:ff
altname enp6s0f0np0
129: p0sf88: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 00:00:00:00:88:88 brd ff:ff:ff:ff:ff:ff
$ rdma dev show
43: rdmap6s0f0: node_type ca fw 16.29.0550 node_guid 248a:0703:00b3:d112 sys_image_guid 248a:0703:00b3:d112
44: mlx5_0: node_type ca fw 16.29.0550 node_guid 0000:00ff:fe00:8888 sys_image_guid 248a:0703:00b3:d112
After use inactivate the function:
$ devlink port function set ens2f0npf0sf88 state inactive
Now delete the subfunction port:
$ devlink port del ens2f0npf0sf88
[1] https://lore.kernel.org/netdev/20200519092258.GF4655@nanopsycho/
[2] https://marc.info/?l=linux-netdev&m=158555928517777&w=2
=================
* tag 'mlx5-updates-2021-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Add devlink subfunction port documentation
devlink: Extend devlink port documentation for subfunctions
devlink: Add devlink port documentation
net/mlx5: SF, Port function state change support
net/mlx5: SF, Add port add delete functionality
net/mlx5: E-switch, Add eswitch helpers for SF vport
net/mlx5: E-switch, Prepare eswitch to handle SF vport
net/mlx5: SF, Add auxiliary device driver
net/mlx5: SF, Add auxiliary device support
net/mlx5: Introduce vhca state event notifier
devlink: Support get and set state of port function
devlink: Support add and delete devlink port
devlink: Introduce PCI SF port flavour and port attribute
devlink: Prepare code to fill multiple port function attributes
====================
Link: https://lore.kernel.org/r/20210122193658.282884-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pali Rohár says:
====================
net: sfp: add support for GPON RTL8672/RTL9601C and Ubiquiti U-Fiber
This is fourth version of patches which add workarounds for
RTL8672/RTL9601C EEPROMs and Ubiquiti U-Fiber Instant SFP.
====================
Link: https://lore.kernel.org/r/20210125150228.8523-1-pali@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Ubiquiti U-Fiber Instant SFP GPON module has nonsensical information
stored in its EEPROM. It claims to support all transceiver types including
10G Ethernet. Clear all claimed modes and set only 1000baseX_Full, which is
the only one supported.
This module has also phys_id set to SFF, and the SFP subsystem currently
does not allow to use SFP modules detected as SFFs. Add exception for this
module so it can be detected as supported.
This change finally allows to detect and use SFP GPON module Ubiquiti
U-Fiber Instant on Linux system.
EEPROM content of this SFP module is (where XX is serial number):
00: 02 04 0b ff ff ff ff ff ff ff ff 03 0c 00 14 c8 ???........??.??
10: 00 00 00 00 55 42 4e 54 20 20 20 20 20 20 20 20 ....UBNT
20: 20 20 20 20 00 18 e8 29 55 46 2d 49 4e 53 54 41 .??)UF-INSTA
30: 4e 54 20 20 20 20 20 20 34 20 20 20 05 1e 00 36 NT 4 ??.6
40: 00 06 00 00 55 42 4e 54 XX XX XX XX XX XX XX XX .?..UBNTXXXXXXXX
50: 20 20 20 20 31 34 30 31 32 33 20 20 60 80 02 41 140123 `??A
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The workaround for VSOL V2801F brand based GPON SFP modules added in commit
0d035bed2a ("net: sfp: VSOL V2801F / CarlitoxxPro CPGOS03-0490 v2.0
workaround") works only for IDs added explicitly to the list. Since there
are rebranded modules where OEM vendors put different strings into the
vendor name field, we cannot base workaround on IDs only.
Moreover the issue which the above mentioned commit tried to work around is
generic not only to VSOL based modules, but rather to all GPON modules
based on Realtek RTL8672 and RTL9601C chips.
These include at least the following GPON modules:
* V-SOL V2801F
* C-Data FD511GX-RM0
* OPTON GP801R
* BAUDCOM BD-1234-SFM
* CPGOS03-0490 v2.0
* Ubiquiti U-Fiber Instant
* EXOT EGS1
These Realtek chips have broken EEPROM emulator which for N-byte read
operation returns just the first byte of EEPROM data, followed by N-1
zeros.
Introduce a new function, sfp_id_needs_byte_io(), which detects SFP modules
with broken EEPROM emulator based on N-1 zeros and switch to 1 byte EEPROM
reading operation.
Function sfp_i2c_read() now always uses single byte reading when it is
required and when function sfp_hwmon_probe() detects single byte access,
it disables registration of hwmon device, because in this case we cannot
reliably and atomically read 2 bytes as is required by the standard for
retrieving values from diagnostic area.
(These Realtek chips are broken in a way that violates SFP standards for
diagnostic interface. Kernel in this case simply cannot do anything less
of skipping registration of the hwmon interface.)
This patch fixes reading of EEPROM content from SFP modules based on
Realtek RTL8672 and RTL9601C chips. Diagnostic interface of EEPROM stays
broken and cannot be fixed.
Fixes: 0d035bed2a ("net: sfp: VSOL V2801F / CarlitoxxPro CPGOS03-0490 v2.0 workaround")
Co-developed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Added PCI IDs for both Ethernet TSN Controllers on the ADL-S.
Also, skip SerDes programming sequences as these are being carried out
at the BIOS level for ADL-S.
Signed-off-by: Wong, Vee Khee <vee.khee.wong@intel.com>
Link: https://lore.kernel.org/r/20210126085832.3814-1-vee.khee.wong@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the rtl8366rb driver there are some jam tables which contain
undocumented values.
While trying to understand what these tables actually do,
I noticed a discrepancy in how one of those was treated.
Most of them were plain u16 arrays, while the ethernet one was
an u16 matrix.
By looking at the vendor's droplets of source code these tables came from,
I found out that they were all originally u16 matrixes.
This commit standardizes the jam tables, turning them all into
jam_tbl_entry arrays. Each entry contains 2 u16 values.
This change makes it easier to understand how the jam tables are used
and also makes it possible for a single function to handle all of them,
removing some duplicated code.
Signed-off-by: Lorenzo Carletti <lorenzo.carletti98@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Saeed Mahameed says:
====================
mlx5 devlink traps support
Add support for devlink traps [1] reporting in mlx5,
mlx5 will also report/trap packets filtered due to dest mac steering miss
The first patch in the series defines the new DMAC trap type in devlink
for this purpose.
Other patches in the series are mlx5 only and they gradually traps support.
Supported traps:
DMAC: Drops due to destination MAC not configured in the MAC table
VLAN: Drops due to vlan not configured in the vlan table
Design note:
devlink instance is managed by the low level mlx5 core layer, mlx5 core will
serve as an abstraction layer for trap reporting, since we might have multiple
mlx5 interfaces who might want to report traps on the same device.
====================
Link: https://lore.kernel.org/r/20210126232419.175836-1-saeedm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Avoid trapping packets when the interface is down, and revive them when
interface is back up. Add API to mlx5 core retrieving the action by trap
id. Use it to apply traps when interface is up, and disable then when
interface is down.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for trapping packets which didn't match any DMAC in the MAC
table. Add a listener which adds/removes MAC trap rule in the flow
steering according to the trap's action trap/drop.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for listening to blocking events in the ETH driver. Listen
on trap event. If received, call mlx5e_handle_trap_event() which:
1) Verifies if driver needs open/close trap-RQ with respect to the
active traps count.
2) Inspects trap id and its action (trap/drop) and add/remove the flow
steering rule accordingly.
Otherwise, return an error.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce mlx5e_trap which includes a dedicated RQ and NAPI for trapped
packets. Trap-RQ processes packets that were destined to be dropped,
but for debug and visibility sake these packets are trapped and reported
to devlink.
Trap-RQ connects between the HW and the driver and is not a part of a
channel. Open mlx5e_create_rq() and mlx5_core_destroy_rq() as API and
add dedicate RQ handlers which report to devlink of trapped packets.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to support RQs outside of channel context, change
mlx5e_init_di_list() signature to accept NUMA node instead of cpu.
In addition, expose dma info helpers as API. This API will be used for
RQ's creation in other files in downstream patches.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add flow group to the L2 table to hold the catch-all DMAC rule. Add API
which adds/removes DMAC trap rule. This rule catches packets that were
destined to be dropped due to no-match with previous DMAC rules. The
trap rule steer these packets to the trap tir related to the trap-RQ.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add flow group to the VLAN table to hold the catch-all VLAN rule. Add
API which adds/removes VLAN trap rule. This rule catches packets that
were destined to be dropped due to no-match with previous VLAN rules.
The trap rule steer these packets to the trap tir related to the
trap-RQ.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change steering flow to optimize traffic in promiscuous mode. On demand,
add a high priority table containing a catch-all rule. All incoming
packets are caught by this rule and steered directly to the TTC table.
Prior to this change, packets in promiscuous mode may suffer from up to
4 steering hops before reaching TTC table.
In addition, this patch will allow us adding a catch-all rule at the end
of MAC table to serve MAC trap, with no impact on promiscuous mode
performance.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to allow mlx5 core driver to trigger synchronous operations to
its consumers, add a blocking events handler. Add wrappers to
blocking_notifier_[call_chain/chain_register/chain_unregister]. Add trap
callback for action set and notify about this change. Following patches
in the set add a listener for this event.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change the naming of events notifier head to clarify that it handles
only firmware events. Coming patches in the set, add event notifier for
software events.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Core driver is registered to the devlink traps service, which enables the
admin to redeem packets that were destined to be dropped due to a
particular reason. Register to DMAC filter, allow visibility of packets
that were filtered out by the MAC table.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add packet trap that can report packets that were dropped due to
destination MAC filtering.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Early generations of the mv88e6xxx did not have the global 2
registers. In order to keep the driver slim, it was decided to make
the code for these registers optional. Over time, more generations of
switches have been added, always supporting global 2 and adding more
and more registers. No effort has been made to keep these additional
registers also optional to slim the driver down when used for older
generations. Optional global 2 now just gives additional development
and maintenance burden for no real gain.
Make global 2 support always compiled in.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20210127003210.663173-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* many minstrel improvements, including removal of the old
minstrel in favour of minstrel_ht
* speed improvements on FQ
* support for RX decapsulation (header conversion) offload
* RTNL reduction: limit RTNL usage in the wireless stack
mostly to where really needed (regulatory not yet) to
reduce contention on it
* various other small updates
-----BEGIN PGP SIGNATURE-----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=gIbl
-----END PGP SIGNATURE-----
Merge tag 'mac80211-next-for-net-next-2021-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
More updates:
* many minstrel improvements, including removal of the old
minstrel in favour of minstrel_ht
* speed improvements on FQ
* support for RX decapsulation (header conversion) offload
* RTNL reduction: limit RTNL usage in the wireless stack
mostly to where really needed (regulatory not yet) to
reduce contention on it
* tag 'mac80211-next-for-net-next-2021-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (24 commits)
mac80211: minstrel_ht: fix regression in the max_prob_rate fix
virt_wifi: fix deadlock on RTNL
cfg80211: avoid holding the RTNL when calling the driver
cfg80211: change netdev registration/unregistration semantics
mac80211: minstrel_ht: fix rounding error in throughput calculation
mac80211: minstrel_ht: increase stats update interval
mac80211: minstrel_ht: fix max probability rate selection
mac80211: minstrel_ht: improve sample rate selection
mac80211: minstrel_ht: improve ampdu length estimation
mac80211: minstrel_ht: remove old ewma based rate average code
mac80211: remove legacy minstrel rate control
mac80211: minstrel_ht: add support for OFDM rates on non-HT clients
mac80211: minstrel_ht: clean up CCK code
mac80211: introduce aql_enable node in debugfs
cfg80211: Add phyrate conversion support for extended MCS in 60GHz band
cfg80211: add VHT rate entries for MCS-10 and MCS-11
mac80211: reduce peer HE MCS/NSS to own capabilities
mac80211: remove NSS number of 160MHz if not support 160MHz for HE
mac80211_hwsim: add 6GHz channels
mac80211: add LDPC encoding to ieee80211_parse_tx_radiotap
...
====================
Link: https://lore.kernel.org/r/20210127210915.135550-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEK3kIWJt9yTYMP3ehqclaivrt76kFAmARLD8THG1rbEBwZW5n
dXRyb25peC5kZQAKCRCpyVqK+u3vqdlXB/48nQ5I+Z1wnhPvbtvyH4tk9XSbJaTt
4HH+i3R5RUAzHcOmfm2PQHe9/DxiogOQAFv9Lo0t7HN449bM3LMHrhTCcJIrIRf9
VxFSk4H97wjHR0Zj6TlEe++CTUPUalCpkCluERwqYP9WXRRklXL1mju+WNKnMMl0
9fl4CvQDWjB2wNXXoZ1SVuoFxyeqiKQHJy9n3Wez8sQTIlguOZvm8glDQlyb4v+q
rSxpCUrlpOVv6/11NqxQ7CfGdfTgLUi1a4greriwf1PjEXvDArXMjpDG3bo0kbgy
7Iv0U9GsvtzOPB+6XKxEFeYTKFaixyLugYBAadfvs0lVEIFP1mtlYvQs
=pHI/
-----END PGP SIGNATURE-----
Merge tag 'linux-can-next-for-5.12-20210127' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2021-01-27
The first two patches are by me and fix typos on the CAN gw protocol and the
flexcan driver.
The next patch is by Vincent Mailhol and targets the CAN driver infrastructure,
it exports the function that converts the CAN state into a human readable
string.
A patch by me, which target the CAN driver infrastructure, too, makes the
calculation in can_fd_len2dlc() more readable.
A patch by Tom Rix fixes a checkpatch warning in the mcba_usb driver.
The next seven patches target the mcp251xfd driver. Su Yanjun's patch replaces
several hardcoded assumptions when calling regmap, by using
regmap_get_val_bytes(). The remaining patches are by me. First an open coded
check is replaced by an existing helper function, then in the TX path the
padding for CAN-FD frames is cleaned up. The next two patches clean up the RTR
frame handling in the RX and TX path. Then support for len8_dlc is added. The
last patch adds BQL support.
* tag 'linux-can-next-for-5.12-20210127' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: mcp251xfd: add BQL support
can: mcp251xfd: add len8_dlc support
can: mcp251xfd: mcp251xfd_tx_obj_from_skb(): don't copy data for RTR CAN frames in TX-path
can: mcp251xfd: mcp251xfd_hw_rx_obj_to_skb(): don't copy data for RTR CAN frames in RX-path
can: mcp251xfd: mcp251xfd_tx_obj_from_skb(): clean up padding of CAN-FD frames
can: mcp251xfd: mcp251xfd_start_xmit(): use mcp251xfd_get_tx_free() to check TX is is full
can: mcp251xfd: replace sizeof(u32) with val_bytes in regmap
can: mcba_usb: remove h from printk format specifier
can: length: can_fd_len2dlc(): make legnth calculation readable again
can: dev: export can_get_state_str() function
can: flexcan: fix typos
can: gw: fix typo
====================
Link: https://lore.kernel.org/r/20210127092227.2775573-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove a duplicate code checking for header size in tipc_msg_create() as
it's already being done in tipc_msg_init().
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Huu Le <hoang.h.le@dektech.com.au>
Link: https://lore.kernel.org/r/20210127025123.6390-1-hoang.h.le@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Nikolay Aleksandrov says:
====================
net: bridge: multicast: per-port EHT hosts limit
This set adds a simple configurable per-port EHT tracked hosts limit.
Patch 01 adds a default limit of 512 tracked hosts per-port, since the EHT
changes are still only in net-next that shouldn't be a problem. Then
patch 02 adds the ability to configure and retrieve the hosts limit
and to retrieve the current number of tracked hosts per port.
Let's be on the safe side and limit the number of tracked hosts by
default while allowing the user to increase that limit if needed.
====================
Link: https://lore.kernel.org/r/20210126093533.441338-1-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add two new port attributes which make EHT hosts limit configurable and
export the current number of tracked EHT hosts:
- IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT: configure/retrieve current limit
- IFLA_BRPORT_MCAST_EHT_HOSTS_CNT: current number of tracked hosts
Setting IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT to 0 is currently not allowed.
Note that we have to increase RTNL_SLAVE_MAX_TYPE to 38 minimum, I've
increased it to 40 to have space for two more future entries.
v2: move br_multicast_eht_set_hosts_limit() to br_multicast_eht.c,
no functional change
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a default limit of 512 for number of tracked EHT hosts per-port.
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix the following coccicheck warnings:
./drivers/net/ethernet/rocker/rocker_ofdpa.c:926:34-36: WARNING !A || A
&& B is equivalent to !A || B.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Link: https://lore.kernel.org/r/1611648783-3916-1-git-send-email-abaci-bugfix@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These Kconfig files are included from net/Kconfig, inside the
if NET ... endif.
Remove 'depends on NET', which we know it is already met.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20210125232026.106855-1-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
CONFIG_NET_L3_MASTER_DEV is a bool option. Change the ifeq conditional
to the standard obj-$(CONFIG_NET_L3_MASTER_DEV) form.
Use obj-y in net/l3mdev/Makefile because Kbuild visits this Makefile
only when CONFIG_NET_L3_MASTER_DEV=y.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20210125231659.106201-4-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
CONFIG_NET_SWITCHDEV is a bool option. Change the ifeq conditional to
the standard obj-$(CONFIG_NET_SWITCHDEV) form.
Use obj-y in net/switchdev/Makefile because Kbuild visits this Makefile
only when CONFIG_NET_SWITCHDEV=y.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20210125231659.106201-3-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
CONFIG_DCB is a bool option. Change the ifeq conditional to the
standard obj-$(CONFIG_DCB) form.
Use obj-y in net/dcb/Makefile because Kbuild visits this Makefile
only when CONFIG_DCB=y.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20210125231659.106201-2-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When CONFIG_NET is disabled, nothing under the net/ directory is
compiled. Move the CONFIG_NET guard to the top Makefile so the net/
directory is entirely skipped.
When Kbuild visits net/Makefile, CONFIG_NET is obvioulsy 'y' because
CONFIG_NET is a bool option. Clean up net/Makefile.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20210125231659.106201-1-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
CONFIG_NET is a bool option, and this file is compiled only when
CONFIG_NET=y.
Remove #ifdef CONFIG_NET, which we know it is always met.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20210125231421.105936-1-masahiroy@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Mat Martineau says:
====================
MPTCP: IPv4-mapped IPv6 addressing for subflows
This patch series from the MPTCP tree adds support for IPv4-mapped IPv6
addressing that was missing when multiple subflows were first
implemented.
Patches 1 and 2 handle the conversion and comparison of the mapped
addresses.
Patch 3 contains a minor refactor in the path manager's handling of
addresses.
Patches 4 and 5 add selftests for the new functionality and adjust the
selftest timeout.
====================
Link: https://lore.kernel.org/r/20210125185904.6997-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On slow systems with kernel debug settings, we can reach the current
timeout when all tests are executed.
Likely some tests need be improved to remove some 'sleep' and wait
(less) for a specific action. This can also improve stability.
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Here, we make sure we support IPv4-mapped in IPv6 addresses in different
contexts:
- a v4-mapped address is received by the PM and can be used as v4.
- a v4 address is received by the PM and can be used even with a v4
mapped socket.
We also make sure we don't try to establish subflows between v4 and v6
addresses, e.g. if a real v6 address ends with a valid v4 address.
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
To avoid confusions like when working on the previous patch, better to
declare and assign this variable only where it is needed.
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On one side, we can allow the creation of subflows between v4 mapped in
v6 and v4 addresses. For that we look for v4mapped addresses between the
local address we want to select and the remote one.
On the other side, we also properly deal with received v4mapped
addresses, either announced ones or set via Netlink.
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/122
Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With an IPv4 mapped in v6 socket, we were trying to call inet6_bind()
with an IPv4 address resulting in a -EINVAL error because the given
addr_len -- size of the address structure -- was too short.
We now make sure to use address structures for the same family as the
MPTCP socket for both the bind() and the connect(). It means we convert
v4 addresses to v4 mapped in v6 or the opposite if needed.
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/122
Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
rtl_wol_enable_rx() is called via the following call chain if WoL
is enabled:
rtl8169_down()
-> rtl_prepare_power_down()
-> rtl_wol_enable_rx()
Therefore we don't have to call this function here.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/34ce78e2-596c-e2ac-16aa-c550fa624c22@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pktgen create threads for all online cpus and bond these threads to
relevant cpu repecivtily. when this thread firstly be woken up, it
will compare cpu currently running with the cpu specified at the time
of creation and if the two cpus are not equal, BUG_ON() will take effect
causing panic on the system.
Notice that these threads could be migrated to other cpus before start
running because of the cpu hotplug after these threads have created. so the
BUG_ON() used here seems unreasonable and we can replace it with WARN_ON()
to just printf a warning other than panic the system.
Signed-off-by: Di Zhu <zhudi21@huawei.com>
Link: https://lore.kernel.org/r/20210125124229.19334-1-zhudi21@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since mi->max_prob_rate is overwritten after the loop that calls
minstrel_ht_set_best_prob_rate, the new best rate needs to be written to *dest
Fixes: a7fca4e403 ("mac80211: minstrel_ht: fix max probability rate selection")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210126154409.6755-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix a regression where everything in virt_wifi would just hang. This
happened due to overlapping changes between commit a05829a722
("cfg80211: avoid holding the RTNL when calling the driver") which
had originally needed to change the locking, but then I introduced
commit 2fe8ef1062 ("cfg80211: change netdev registration/unregistration
semantics") instead. virt_wifi somehow fell through the cracks when
I undid all the previous locking changes. Fix it now.
Fixes: a05829a722 ("cfg80211: avoid holding the RTNL when calling the driver")
Reported-by: syzbot+3d2d5e6cc3fb15c6a0fd@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20210127215941.2d6a97b09784.I4f1fac32f67045171be50931f44d77e150911bee@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In Classical CAN there are RTR frames. RTR frames have the RTR bit set, may
have a dlc != 0, but contain no data.
This patch optimizes the TX-path to not copy any data for RTR frames.
Link: https://lore.kernel.org/r/20210114153448.1506901-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In Classical CAN there are RTR frames. RTR frames have the RTR bit set, may
have a dlc != 0, but contain no data.
This patch changes the RX-path to no copy any data for RTR frames, so that the
data field in the CAN frame stays 0x0.
Link: https://lore.kernel.org/r/20210114153448.1506901-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Jakub Kicinski