These two functions are identical apart from writing different values to
the read/write bit. Create a new function rtl_table_exec to reduce code
duplication.
Also replace the unbounded busy-waiting loop. The new implementation may
sleep, but as the hardware typically responds before the first poll, any
callers doing many table accesses still need to make sure not to block
other kernel tasks themselves.
So far, polling timeout errors are only handled by logging an error, but
a return value is added to allow proper handling in the future.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
This function currently prints three messages for every switch port at
KERN_INFO level. This takes a considerable amount of time during bootup
and can even trigger an external watchdog.
Replace these log messages by a single one at KERN_DEBUG level.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
should be add/delete or abbreviated add/del
Signed-off-by: Jan-Niklas Burfeind <git@aiyionpri.me>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
The code in dsa.c:rtl83xx_port_enable() was trying to set
vlan_port_tag_sts_ctrl while dealing with differences between SoCs.
However, not only that register has a different address, the register
structure and even the 2-bit value semantic changes for each SoC.
The vlan_port_tag_sts_ctrl field was dropped and converted into a
vlan_port_keep_incoming_tag_set() function that abstracts the different
between SoCs. The macro referencing that register migrated to the SoC
specific c file as it will be privately used by each file.
All magic numbers were converted into macros using BITMASK and
FIELD_PREP.
The vlan_port_tag_sts_ctrl debugfs was dropped for now as it is already
broken for rtl93xx. The best place for SoC specific code might be in each
respective c file and not in if/else clauses.
The final result is:
rtl838x: set ITAG_STS=TAGGED, same as before
rtl839x: set ITAG_STS=TAGGED instead of IGR_P_ITAG_KEEP=0x1, fixing
forwarding of tagged packets
rtl930x: set EGR_ITAG_STS=TAGGED instead of IGR_P_ITAG=0x1, possibly
fixing forwarding of tagged packets
rtl931x: set EGR_ITAG_STS=TAGGED instead of OTPID_KEEP=0x1, possibly
fixing forwarding of tagged packets
Without (EGR_)ITAG_STS=TAGGED, at least for rtl839x, forwarded packets
will drop the vlan tag while packets from the CPU will still have the
correct tag.
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
L2 learning on the CPU port is currently not consistently configured and
relies on the default configuration of the device. On RTL83xx, it is
disabled for packets transmitted with a TX header, as hardware learning
corrupts the forwarding table otherwise. As a result, unneeded flooding
of traffic for the CPU port can already happen on some devices now. It
is also likely that similar issues exist on RTL93xx, which doesn't have
a field to disable learning in the TX header.
To address this, disable hardware learning for the CPU port globally on
all devices. Instead, enable assisted learning to let DSA write FDB
entries to the switch.
For now, this does not sync local/bridge entries to the switch. However,
support for that was added in Linux 5.14, so the next switch to a newer
kernel version is going to fix this.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Initialize the data structure using memset to avoid the possibility of
writing garbage values to the hardware.
Always set a valid entry type, which should fix writing unicast entries
on RTL930x.
For unicast entries, set the is_static flag to prevent the switch from
aging them out.
Also set the rvid field for unicast entries. This is not strictly
necessary, as the switch fills it in automatically from a non-zero vid.
However, this makes the code consistent with multicast entry setup.
While at it, reorder the statements and fix some style issues (double
space, comma instead of semicolon at end of statement). Also remove the
unneeded priv parameter and debug print for the multicast entry setup
function.
Fixes: cde31976e3 ("realtek: Add support for Layer 2 Multicast")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Currently several messages at KERN_INFO level are printed for every FDB
del/dump operation. This can cause a significant slowdown for example
while using "bridge fdb", and may even trigger a watchdog.
Remove most of these log messages, as the new L2 table debugfs node
should be a good replacement. Change the remaining messages to
KERN_DEBUG level.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Switch to a polling implementation similar to the one for RTL838x, to
allow other kernel tasks to run while waiting.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
In *_enable_learning() only address learning should be configured, so
remove enabling forwarding. Forwarding is configured by the respective
*_enable_flood() functions.
Clean up both functions for RTL838x and RTL839x, and fix the comment on
the number of entries.
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[squash RTL838x, RTL839x changes]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Those messages should be printed when entry was found (idx >= 0). Move
them to the right place to not print invalid entry indices.
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amden commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Due to an oversight we accidentally inverted the timeout check. This
patch corrects this.
Fixes: 9cec4a0ea4 ("realtek: Use built-in functionality for timeout loop")
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[ wrap poll_timeout line to 80 char ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
In commit 81e3017609 ("realtek: clean up rtl838x MDIO busy wait loop")
a hand-crafted loop was created, that nearly exactly replicate the
iopoll's `read_poll_timeout` functionality.
Use that instead.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
When marking a switch port as disabled in the device tree, by using
'status = "disabled";', the switch driver fails on boot, causing a
restart:
CPU 0 Unable to handle kernel paging request at virtual address
00000000, epc == 802c3064, ra == 8022b4b4
[ ... ]
Call Trace:
[<802c3064>] strlen+0x0/0x2c
[<8022b4b4>] start_creating.part.0+0x78/0x194
[<8022bd3c>] debugfs_create_dir+0x44/0x1c0
[<80396dfc>] rtl838x_dbgfs_port_init+0x54/0x258
[<80397508>] rtl838x_dbgfs_init+0xe0/0x56c
This is caused by the DSA subsystem (mostly) ignoring the port, while
rtl83xx_mdio_probe() still extracts some details on this disabled port
from the device tree, resulting in the usage of a NULL pointer where a
port name is expected.
By not probing ignoring disabled ports, no attempt is made to create a
debugfs directory later. The device then boots as expected without the
disabled port.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Don't use udelay to allow other kernel tasks to execute if the kernel
has been built without preemption. Also determine the timeout based on
jiffies instead of loop iterations.
This is especially important on devices containing a watchdog with a
short timeout. Without this change, the watchdog is not serviced during
PHY patching which can take multiple seconds.
Tested-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Setting up DSA bond silently fails if mode is not 802.3ad. Add log message
to fix it. As we are already here harmonize all logging messages in the
add/delete functions.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Do not reset the RTL930x SerDes on link changes, instead set up
the SDS with internal PHYs for the SFP+ ports only.
This fixes the 8 1GBit ports on the Zyxel XGS1250 which
do not work without this patch.
A complete SerDes reset was performed on all SerDes links. For copper
1Gbit ports, this is commonly a single XGMII link to an RTL8218D. There
is however no support for setting up the XGMII link on RTL9300/RTL9310,
thereby wiping the (RX/TX) setup done by u-boot and breaking the 1GBit
ports. No SerDes reset should be done for these links.
The handling of SGMII/HiSGMII, 1000BX or 10GR links is actually entirely
different. All these modes need to be suitably RX calibrated and the
pre- main and post- amplifiers set up properly for TX.
The 10GBit SFP+ fiber links are recalibrated instead of reset, which
e.g. is necessary when someone pulls a module out and puts another in.
This makes swapping out 10GBit fiber modules possible. 1GBit modules are
not yet supported, nor any modules with an internal phy.
Tested-by: Stijn Segers <foss@volatilesystems.org>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
[rewrite commit message based on discussion]
Link: http://lists.infradead.org/pipermail/openwrt-devel/2022-May/038623.html
Signed-off-by: Sander Vanheule <sander@svanheule.net>
This fixes a bug where frames sent to the switch itself were
flooded to all ports unless the MAC address of the CPU-port
was learned otherwise.
Tested-by: Wenli Looi <wlooi@ucalgary.ca>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
[fix code formatting]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Instead of directly calling SoC-specific functions in order to access
(paged) MII registers or MMD registers, create infrastructure to allow
using the generic phy_*, phy_*_paged and phy_*_mmd functions.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* Add missing Clause-45 write support for rtl931x
* Switch to use helper functions in all Clause-45 access functions to
make the code more readable.
* More meaningful/unified debugging output (dynamic kprintf)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Using the led-set attribute of a port in the dts we allow configuration
of the port leds. Each led-set is being defined in the led-set configuration
of the .dts, giving a specific configuration to steer the port LEDs via a serial
connection.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
For SFP slots on the RTL9302, the link status is not correctly detected.
Use the link media status instead.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
We add the RTL931X sub-target with kernel configuration for
a dual core MIPS InterAptive CPU.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
We add HW support routines for the RTL931X SoC family for handling
the Packet Inspection Engine, L2 table handling and STP aging.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
We need to store and restore MC memberships in HW when a port joins or
leaves a bridge as well as when it is enabled or disabled, as these
properties should not change in these situations.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
In order to receive STP information at the kernel level, we make sure
that all Bridge Protocol Data Units are copied to the CPU-Port.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Instead of a generic L2 aging configuration function with complex
logic, we implement an individual function for all SoC types.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Add functionality to enable or disable L2 learning offload and port flooding
for RTL83XX.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
This adds LAG support for all 4 SoC families, including support
ofr the use of different distribution algorithm for the load-
balancing between individual links.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Use setting functions instead of register numbers in order to clean up the code.
Also use enums to define inner/outer VLAN types and the filter type.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Adds configuration routines for the internal SerDes of the
RTL930X and RTL931X.
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Adds a rtl931x_phylink_mac_config for the RTL931X and improve
the handling of the RTL930X phylink configuration. Add separate
handling of the RTL839x since some configurations are different
from the RTL838X.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
We were using the PHY-ids (the reg entries in the PHY
sections of the .dts) as the port numbers. Now scan the
ports section in the .dts, and use the actual port numbers,
following the phy-handle to the PHY properties.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
When a port is brought up, read the SDS-id via the phy_device
for a given port and use this to configure the SDS when it
is brought up.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Creates RTL83XX as a basic kernel config parameter for the
RTL838X, RTL839x, RTL930X and RTL931X platforms with respective
configurations for the SoCs, which are introduced in addition.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Commit 03e1d93e07 ("realtek: add driver support for routing
offload") added routing offload for IPv4, but broke IPv6 routing
completely. The routing table is empty and cannot be updated:
root@gs1900-10hp:~# ip -6 route
root@gs1900-10hp:~# ip -6 route add unreachable default
RTNETLINK answers: Invalid argument
As a side effect, this breaks opkg on IPv4 only systems too,
since uclient-fetch fails when there are no IPv6 routes:
root@gs1900-10hp:~# uclient-fetch http://192.168.99.1
Downloading 'http://192.168.99.1'
Failed to send request: Operation not permitted
Fix by returning NOTIFY_DONE when offloading is unsupported, falling
back to default behaviour.
Fixes: 03e1d93e07 ("realtek: add driver support for routing offload")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
RTL8393 SoCs older than Revision C hang on accesses to PHYs with PHY address
larger or equal to the CPU-port (52). This will make scanning the MDIO bus
hang forever. Since the RTL8390 platform does not support more than
52 PHYs, return -EIO for phy addresses >= 52. Note that the RTL8390 family
of SoCs has a fixed mapping between port number and PHY-address.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Adds SoC specific routing offload implementations for
RTL8380/90 and RTL9300. RTL83xx supports merely nexthop
routing, RTL9300 full host and prefix routes.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Add generic support for listening to FIB and Event notifier updates and
use this information to hook into the L3 hardware capabilities of the
RTL SoCs.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
The ingress filter registers use 2 bits for each port to define the filtering
state, whereas the egress filter uses 1 bit. So for for the ingress filter
the register offset for a given port is:
(port >> 4) << 4: since there are 16 entries in a register of 32 bits
and for the egress filter:
(port >> 5) << 4: since there are 32 entries in a register of 32 bits
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Configure a sane L2 learning configuration upon DSA driver load so that the
switch can start learning L2 addresses. Also configure the correct flood masks
for broadcast and unknown unicast traffice.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
This adds RTL93xx-specific MAC configuration routines that allow also configuration
of 10GBit links for phylink. There is support for the Realtek-specific HISGMI
protocol.
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
