Commit Graph

57 Commits

Author SHA1 Message Date
Peter Körner
b49a0feb20
rtl931x: reformat broken indentation
the given code-format did not correctly express the condition and made the code
harder to read then necessary.

Signed-off-by: Peter Körner <git@mazdermind.de>
2024-01-15 18:09:19 +01:00
Harshal Gohel
e691e2b302 rtl83xx: dsa: reset PVID to 1 instead of 0
Before, PVID is reset for all ports and goes out of bounds. Also, PVID
is later changed by dsa configuration by `ip link` and `bridge vlan`
commands, this does not change the CPU port PVID and CPU PVID stays 0.
It does not allow sending packets from OpenWrt to any connected devices
unless default configuration is changed

This change iterates up to and including cpu_port and sets default PVID
to 1. For lan* ports PVID can be configured with `ip link` and `bridge
vlan` commands

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:20:37 +01:00
Harshal Gohel
da495c477d rtl93xx: dsa: Fix 802.1QinQ for trunk ports
Fix incorrect register value being set for VLAN_PORT_FWD

Before, the 0b1111 would be set for the register which means outgoing
packets would receive an extra tag, corresponding to the PVID of the
port.

On untagged ports, this meant outgoing packets with a single tag.

On tagged ports, this meant outgoing QinQ packets, where the inner tag
was either the PVID of the untagged ingress port, or the already
assigned original (single) tag.

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:19:41 +01:00
Harshal Gohel
fe01435b69 rtl83xx: dsa: Clear duplex bit correctly
Without this, luci shows 10M full duplex when there is no link. So
explicitly set half duplex and unknown speed.

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:19:21 +01:00
Harshal Gohel
2cfb1ecf10 rtl930x: Rework per port LED configuration
Use led_setX to determine number of LEDs per port. Introduce macros to
calculate register value and shift for particular LED in a particular
set.

Problem with previous implementation is that it uses is10G status to
determine leds per port. However with usxgmii, driver sets 10g, 5g and
2.5g so even though there are only 2 leds per port it selects 4 leds per
port

This implementation relies on configured led_set node.

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:18:50 +01:00
Harshal Gohel
a376508216 rtl83xx: dsa: Do nothing when vid 0
Following other dsa drivers, vid 0 is no-op

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:18:46 +01:00
Harshal Gohel
e0c0137eed rtl83xx: dsa: disable VLAN filtering on CPU port
Before driver code
 - enabled egress filter for cpu and non-cpu ports
 - enabled ingress filter for non-cpu ports

This patch explicitly enables ingress and egress filtering for non-cpu
ports and disables ingress and egress filtering for cpu port.

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:15:37 +01:00
Harshal Gohel
3e753c45cd rtl838x: Enable jumbo frames by default
Increase DEFAULT_MTU and max-mtu size
Increase truncate length on rx of jumbo frame

Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
2024-01-09 21:15:23 +01:00
Rosen Penev
89ff407d68
treewide: use ethtool_puts instead of memcpy
The former is a safer and more readable version.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2024-01-05 16:12:49 +01:00
Pascal Ernster
4e8c9cebe5 realtek: Use hex for "soc" identifier in debugfs
The upper 16 bits of the 32 bit value encode the SoC model in BCD
notation (for example 0x83806800 on a Netgear GS108Tv3 with an
RTL8380M), so it makes more sense to output the value in hex notation
than in decimal notation.

Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-12-31 14:13:43 +01:00
Tobias Schramm
8b706d9297 realtek: 5.15: rtl93xx: support 100BASE-T and 10BASE-T MAC modes
The MAC embedded in rtl93xx switch SoCs needs different mac mode bits set
to support 10BaseT and 100BaseT link modes. Set them accordingly.

This change has been tested on a ZyXEL XGS1250-12.

Signed-off-by: Tobias Schramm <tobias@t-sys.eu>
2023-12-24 01:36:39 +01:00
Rudolf Vesely
41fcc617f9
rtl83xx: fix STP by trapping BPDUs
Fix Spanning Tree Protocol (STP) by changing COPY2CPU which currently
makes switch to ignore Bridge Protocol Data Units (BPDUs).

Tested on Zyxel GS1900-8, 24 and 48.

Signed-off-by: Rudolf Vesely <i@rudolfvesely.com>
[ improve commit description and add new line in different sections ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-10-04 14:18:25 +02:00
Tobias Schramm
cd56a68232
realtek: 5.15: rtl93xx: support 2500baseT and 5000baseT on USXGMII links
The USXGMII implementation of Realtek switches can not only support
10GbE but also 2.5Gb and 5Gb on top of the usual data rates.
Mark those as supported to allow them to be negotiated.

This change has been tested on a ZyXEL XGS1250-12 with the following link
partners:
 - NWA50AX Pro (2.5Gb)
 - RTL8152 USB NIC (2.5Gb)
 - AQC111 USB NIC (2.5Gb & 5Gb)

Gbit and 10GbE has also been tested to still work fine with a variety of
devices.

Signed-off-by: Tobias Schramm <tobias@t-sys.eu>
2023-10-03 19:09:32 +02:00
Peter Körner
9fb5082e25
rtl93xx: fix condition intended to only select internal serdes ports
This condition was introduced in commit 51c8f76612 ("realtek: Improve
MAC config handling for all SoCs") to correctly report the speed of the
internal serdes ports as 10G, but instead makes all ports read 10G
because the or-operator should have been an and-operator.

Fixes: #9953
Fixes: 51c8f76612 ("realtek: Improve MAC config handling for all SoCs")
Signed-off-by: Peter Körner <git@mazdermind.de>
[ wrap comment to 72 column and improve commit ref ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-10-03 19:01:32 +02:00
Pascal Ernster
87a2f03b86 realtek: Use MDIO_* constants from <linux/mdio.h>
To improve code readability in drivers/net/phy/rtl83xx-phy.c, replace
constants MMD_AN and MMD_VEND2 from drivers/net/phy/rtl83xx-phy.h with
MDIO_MMD_AN and MDIO_MMD_VEND2 from <linux/mdio.h>.

Also, replace
BIT(0) with MDIO_EEE_2_5GT,
BIT(1) with MDIO_EEE_100TX,
BIT(2) with MDIO_EEE_1000T,
BIT(9) with MDIO_AN_CTRL1_RESTART,
BIT(12) with MDIO_AN_CTRL1_ENABLE,
32 with MDIO_AN_10GBT_CTRL,
60 with MDIO_AN_EEE_ADV, and
62 with MDIO_AN_EEE_ADV2
from <linux/mdio.h>.

Suggested-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-07-01 20:25:48 +02:00
Pascal Ernster
171e67e2f7 realtek: Use ADVERTISE_* and MII_PHYSID* from <linux/mii.h>
Replace BIT(x) and numerical values in drivers/net/phy/rtl83xx-phy.c
with constants from <linux/mii.h> to improve code readability.

To make reviewing easier, this commit only addresses ADVERTISE_* and
MII_PHYSID* constants.

Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-07-01 20:25:48 +02:00
Pascal Ernster
8b2f654d4c realtek: Use MII_BMCR and BMCR_* constants from <linux/mii.h>
Replace numerical values, BIT(x) and (1 << x) in
drivers/net/phy/rtl83xx-phy.c with constants from <linux/mii.h> to
improve code readability.

To make reviewing easier, this commit only addresses MII_BMCR and BMCR_*
constants.

Suggested-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-07-01 20:25:48 +02:00
Olliver Schinagl
d881f65da1 realtek: eth: Do not write directly to dev->addr
One is never to write to dev->addr directly. In 6.1 it will be a const and
with the newly enabled WERROR, we get a failing grade.

Lets fix this ahead of time.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-06-03 21:15:11 +02:00
Olliver Schinagl
9fb1dbb1df realtek: Add missing headers
We are missing a bunch of headers, which trigger errors on 6.1, probably
due to changed header-in-header dependencies. Best add them now.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-06-03 21:15:11 +02:00
Christian Marangi
c7bca5883d
realtek: 5.15: replace fallthrough comment for rtl838x ethernet driver
Replace fallthrough comment with fallthrough macro for rtl838x ethernet
driver.
Fix compilarion warning:
drivers/net/ethernet/rtl838x_eth.c: In function 'rtl930x_mdio_reset':
drivers/net/ethernet/rtl838x_eth.c:1959:43: error: this statement may fall through [-Werror=implicit-fallthrough=]
 1959 |                         private_poll_mask |= BIT(i);
drivers/net/ethernet/rtl838x_eth.c:1961:17: note: here
 1961 |                 case PHY_INTERFACE_MODE_USXGMII:
      |                 ^~~~

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:40 +02:00
Christian Marangi
8aa786d9a7
realtek: 5.15: fix uninizialized variable in rtl83xx qos driver
Fix uninizialized variable in rtl83xx qos driver
Fix compilation error:
drivers/net/dsa/rtl83xx/qos.c: In function 'rtl838x_setup_prio2queue_matrix':
drivers/net/dsa/rtl83xx/qos.c:298:19: error: 'v' is used uninitialized [-Werror=uninitialized]
  298 |                 v |= i << (min_queues[i] * 3);
      |                 ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/rtl83xx/qos.c:294:13: note: 'v' was declared here
  294 |         u32 v;
      |             ^
drivers/net/dsa/rtl83xx/qos.c: In function 'rtl83xx_setup_prio2queue_cpu_matrix':
drivers/net/dsa/rtl83xx/qos.c:320:19: error: 'v' is used uninitialized [-Werror=uninitialized]
  320 |                 v |= max_queues[i] << (i * 3);
      |                 ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/rtl83xx/qos.c:316:13: note: 'v' was declared here
  316 |         u32 v;
      |             ^
cc1: all warnings being treated as errors
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:40 +02:00
Christian Marangi
1a0e9bc3b8
realtek: 5.15: comment unused part of realtek ethernet driver
Comment unused part of realtek phy driver.
Fix compilation warning:
drivers/net/phy/rtl83xx-phy.c: In function 'rtl8380_configure_int_rtl8218b':
drivers/net/phy/rtl83xx-phy.c:747:21: error: unused variable 'ipd_flag' [-Werror=unused-variable]
  747 |                 int ipd_flag = 1;
      |                     ^~~~~~~~
drivers/net/phy/rtl83xx-phy.c: At top level:
drivers/net/phy/rtl83xx-phy.c:3333:13: error: 'rtl931x_sds_disable' defined but not used [-Werror=unused-function]
 3333 | static void rtl931x_sds_disable(u32 sds)
      |             ^~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Comment unused part of realtek dsa driver.
Fix compilation warning:
drivers/net/dsa/rtl83xx/common.c: In function 'rtl83xx_fib_event':
drivers/net/dsa/rtl83xx/common.c:1430:58: error: unused variable 'fen6_info' [-Werror=unused-variable]
 1430 |                         struct fib6_entry_notifier_info *fen6_info = ptr;
      |                                                          ^~~~~~~~~
drivers/net/dsa/rtl83xx/common.c: At top level:
drivers/net/dsa/rtl83xx/common.c:531:12: error: 'rtl83xx_octet_cntr_alloc' defined but not used [-Werror=unused-function]
  531 | static int rtl83xx_octet_cntr_alloc(struct rtl838x_switch_priv *priv)
      |            ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Drop unused priv in realtek dsa driver.
Fix compilation warning:
drivers/net/dsa/rtl83xx/dsa.c: In function 'rtl83xx_port_lag_change':
drivers/net/dsa/rtl83xx/dsa.c:2016:37: error: unused variable 'priv' [-Werror=unused-variable]
 2016 |         struct rtl838x_switch_priv *priv = ds->priv;
      |                                     ^~~~
cc1: all warnings being treated as errors

Comment rtl838x_pie_rule_dump in realtek dsa driver for rtl83xx
Fix compilation warning:
drivers/net/dsa/rtl83xx/rtl838x.c:1294:13: error: 'rtl838x_pie_rule_dump' defined but not used [-Werror=unused-function]
 1294 | static void rtl838x_pie_rule_dump(struct  pie_rule *pr)
      |             ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Comment multiple function in realtek dsa driver for rtl930x
Fix compilation warning:
drivers/net/dsa/rtl83xx/rtl930x.c:1463:12: error: 'rtl930x_l3_intf_add' defined but not used [-Werror=unused-function]
 1463 | static int rtl930x_l3_intf_add(struct rtl838x_switch_priv *priv, struct rtl838x_l3_intf *intf)
      |            ^~~~~~~~~~~~~~~~~~~
drivers/net/dsa/rtl83xx/rtl930x.c:1414:12: error: 'rtl930x_l3_mtu_del' defined but not used [-Werror=unused-function]
 1414 | static int rtl930x_l3_mtu_del(struct rtl838x_switch_priv *priv, int mtu)
      |            ^~~~~~~~~~~~~~~~~~
drivers/net/dsa/rtl83xx/rtl930x.c:995:12: error: 'rtl930x_l3_hash6' defined but not used [-Werror=unused-function]
  995 | static u32 rtl930x_l3_hash6(struct in6_addr *ip6, int algorithm, bool move_dip)
      |            ^~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

drivers/net/dsa/rtl83xx/rtl930x.c:1690:13: error: 'rtl930x_read_pie_fixed_fields' defined but not used [-Werror=unused-function]
 1690 | static void rtl930x_read_pie_fixed_fields(u32 r[], struct pie_rule *pr)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/rtl83xx/rtl930x.c:1432:12: error: 'rtl930x_l3_mtu_add' defined but not used [-Werror=unused-function]
 1432 | static int rtl930x_l3_mtu_add(struct rtl838x_switch_priv *priv, int mtu)
      |            ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Comment rtl931x_read_pie_fixed_fields in realtek dsa driver for rtl931x
Fix compilation warning:
drivers/net/dsa/rtl83xx/rtl931x.c:1116:13: error: 'rtl931x_read_pie_fixed_fields' defined but not used [-Werror=unused-function]
 1116 | static void rtl931x_read_pie_fixed_fields(u32 r[], struct pie_rule *pr)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Comment rtl93xx_header_vlan_set in realtek ethernet driver for rtl838x
Fix compilation warning:
drivers/net/ethernet/rtl838x_eth.c: At top level:
drivers/net/ethernet/rtl838x_eth.c:164:13: error: 'rtl93xx_header_vlan_set' defined but not used [-Werror=unused-function]
  164 | static void rtl93xx_header_vlan_set(struct p_hdr *h, int vlan)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:40 +02:00
Jan Hoffmann
a872570c04 realtek: remove redundant is_lagmember checks
All callers of the rtl83xx_mc_group_* functions already do the same
check, so these aren't needed.

For rtl83xx_mc_group_alloc, this branch also incorrectly returned 0
instead of a negative value. If the branch wasn't effectively dead code
anyway, this could potentially have caused bugs, as 0 is a valid
multicast group entry index.

Fixes: cde31976e3 ("realtek: Add support for Layer 2 Multicast")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:16:07 +02:00
Jan Hoffmann
98a3b52380 realtek: remove store_mcgroups/load_mcgroups
The current implementation only works when store and load are called for
the same port without any other calls in between. This is because the
store function only saves a single port number instead of a portmask for
each group. It also doesn't take into account that the allocation of
multicast group entries might change between store/load calls.

As a result, the multicast port mask table gets corrupted. This also
includes the reserved entry for unknown multicast, which gets corrupted
even when no other mdb entries have been added.

Remove the code for storing/loading multicast groups entirely, as the
original commit message doesn't offer a convincing reason why this would
be necessary in the first place.

Fixes: 724e4af530 ("realtek: Store and Restore MC memberships for port enable/disable")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:15:34 +02:00
Jan Hoffmann
6772ae1172 realtek: don't add CPU port to multicast portmasks
There shouldn't be any reason to forward all multicast to the CPU. The
original commit message also doesn't provide a reason for this seemingly
unrelated change.

The current implementation of the delete method is also broken, as it
entirely removes any entry when the portmask contains only the CPU port,
even if it was explicitly created.

Fixes: 724e4af530 ("realtek: Store and Restore MC memberships for port enable/disable")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:09:02 +02:00
Jan Hoffmann
3356126b82 realtek: actually remove port from multicast portmask
Fixes: 724e4af530 ("realtek: Store and Restore MC memberships for port enable/disable")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:09:01 +02:00
Jan Hoffmann
57df840670 realtek: don't treat first multicast portmask entry as reserved
There doesn't appear to be a reason to do this, as only the last entry
is actually reserved for unknown multicast.

This also fixes two issues:
 - As the increment happened after the bounds check, the value of the
   actually reserved last entry could be overwritten.
 - On deletion of entries, a corresponding decrement was missing,
   causing the wrong entry to be marked as free.

Fixes: cde31976e3 ("realtek: Add support for Layer 2 Multicast")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:09:00 +02:00
Jan Hoffmann
81931756e1 realtek: fix writing/deletion of CAM entries
Actually use the index returned by rtl83xx_find_l2_cam_entry.

Fixes: cde31976e3 ("realtek: Add support for Layer 2 Multicast")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:08:59 +02:00
Jan Hoffmann
8ea27bb959 realtek: handle changed flags in VLAN configuration
The port_vlan_add method may be called while a port is already a member
of that VLAN, so it needs to be able to handle changed flags. Fix it to
properly handle when the PVID or UNTAGGED flag was previously set, but
now no longer is.

To reduce duplication, move PVID configuration to a separate function.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:07:34 +02:00
Jan Hoffmann
5d34fc92ec realtek: fix standalone ports in presence of static fdb entries
The registers L2_PORT_STATIC_MV_ACT seem to specify the action to take
when the source address of a packet exists as a static fdb entry on
another port. By default the configured action is to drop such packets.

For standalone ports, this behaviour is undesired, as all traffic should
be forwarded to the CPU. So change the action to forward on standalone
ports.

A situation where this issue can occur is when a non-offloaded bond
interface is part of a bridge. In that case, the CPU port will have fdb
entries for devices connected to the bond interface, which are managed
by the assisted learning feature.

For now, this is only implemented for RTL838x/RTL839x, as the available
set of registers differs for the other devices.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:07:34 +02:00
Jan Hoffmann
4c0a1667f3 realtek: initialize port masks to match the default state
All ports are disabled by default, so configure the port isolation masks
and the pm field accordingly in the setup function. When port_enable is
called for a port, the isolation masks will be set up so that traffic
can flow between the port and the CPU.

While at it, change the code to also use the traffic_set method in
rtl83xx_setup, instead of writing to the RTL838x_PORT_ISO_CTRL(i)
registers directly.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:07:34 +02:00
Jan Hoffmann
3af984e46e realtek: properly update port masks when port leaves bridge
Correctly update the isolation mask of the port being configured. The
port_bitmap variable should contain all other bridge members and needs
to be actually removed from the isolation mask instead of added to it.

Also actually remove the port being configured from the pm field of the
other ports, so that any other ports that are currently disabled will be
configured correctly when they are enabled.

Fixes: df8e6be59a ("rtl838x: add new architecture")
[fixed updating pm field of other ports]
Fixes: 2b88563ee5 ("realtek: update the tree to the latest refactored version")
[reintroduced incorrect pm field update]
Fixes: 27029277f9 ("realtek: add switch driver support for the RTL93XX based switches")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-05-07 19:07:34 +02:00
Jan Hoffmann
65b2bcbf5f realtek: fix memory leak in netevent handler
The net_event_work struct is allocated, but only freed in a single case.
Move the allocation to the branch where it is actually needed, and free
it after the work has been done.

Fixes: 03e1d93e07 ("realtek: add driver support for routing offload")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2023-02-13 12:14:16 +01:00
INAGAKI Hiroshi
3cfa465387
realtek: use generic earlycon setup on 5.15
Use generic earlycon on Linux Kernel instead of initialization in platform
setup.
And also, drop bootargs with console= parameter from I-O DATA BSH-G24MB. It
uses 115200bps as baud-rate, the same as default in rtl838x.dtsi.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-01-30 14:30:41 +01:00
Olliver Schinagl
afb5d9e9d5 realtek: timer: Fix cosmetic whitespace in comments
Comments are a bit weird in the timer driver, lets fix those.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-01-28 17:31:12 +01:00
Olliver Schinagl
f6ba61b929 realtek: timer: Remove CEVT_RTL9300 completely
As the timer has been fixed now, we can drop the CEVT_RTL9300 timer all
together.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-01-28 17:31:12 +01:00
Sander Vanheule
38cba61bff
realtek: timer: Register enabled scheduler clock
Before calling sched_clock_register(), the timer used to drive the
scheduling clock should already be enabled. Otherwise the kernel log
will show strange time jumps during, and the watchdog might not be
pinged in a timely fashion, resulting in reboots.

[    0.160281] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[   78.104319] clocksource: Switched to clocksource realtek_otto_timer

Fixes: 3cc8011171 ("realtek: resurrect timer driver")
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2023-01-28 15:23:03 +01:00
Olliver Schinagl
7f5edeb8bd realtek: eth: Fix missing end of comment marker
Because this comment is followed by another comment, nothing luckily
breaks, so only a cosmetic change.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2023-01-27 22:03:17 +01:00
Lorenz Brun
bec9e79a99 realtek: dsa: support active-high LEDs
The TP-LINK TL-ST1008F has active-high LEDs, so we need a device tree
property to express this.

Signed-off-by: Lorenz Brun <lorenz@brun.one>
[Tidy up code, restrict changes to 5.15]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2023-01-24 21:55:44 +01:00
INAGAKI Hiroshi
614bba0958 realtek: use irq_force_affinity on otto timer instead
After commit e0d2c59ee995 ("genirq: Always limit the affinity to online
CPUs", 5.10) on Linux, the cpumask passed to irq_set_affinity of irqchip
driver is limited to online CPUs. When irq_do_set_affinity called from
otto timer driver with only one secondary CPU, that CPU is not marked as
online yet, filtered out by cpu_online_mask and fall to error path.
Then, fail to set affinity for that CPU and it leads to instability of
timer on secondary CPU(s).

At least, RTL839x system will be affected.

log:

[   37.560020] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   37.638025] rcu:     1-...!: (0 ticks this GP) idle=6ac/0/0x0 softirq=0/0 fqs=1  (false positive?)
[   37.752683]  (detected by 0, t=6002 jiffies, g=-1179, q=26293)
[   37.829510] Sending NMI from CPU 0 to CPUs 1:
[   37.886857] NMI backtrace for cpu 1 skipped: idling at r4k_wait_irqoff+0x1c/0x24
[   37.984801] rcu: rcu_sched kthread timer wakeup didn't happen for 5999 jiffies! g-1179 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[   38.132743] rcu:     Possible timer handling issue on cpu=1 timer-softirq=0
[   38.221033] rcu: rcu_sched kthread starved for 6000 jiffies! g-1179 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[   38.356336] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[   38.474440] rcu: RCU grace-period kthread stack dump:
...

Replace to irq_force_affinity from irq_set_affinity and ignore
cpu_online_mask to fix the issue.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Tested-by: Olliver Schinagl <oliver@schinagl.nl>
2023-01-21 19:58:24 +01:00
Markus Stockhausen
c03e458c86 realtek: Follow kernel comment style recommendation
While Linus is fine with longer code lines, comments should still be
within the 80 char limit.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2023-01-13 22:34:16 +01:00
Pascal Ernster
720b243171 realtek: 5.15: Improve error handling in rtl838x_pie_rule_write()
In target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/rtl838x.c,
make rtl838x_pie_rule_write() return non-zero value case of error.

Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-01-05 23:09:23 +01:00
Pascal Ernster
a188536ef6 realtek: 5.15: Improve rtl838x dsa driver error handling
Make sure functions calling rtl838x_smi_wait_op() return its return
value in target/linux/realtek/files-5.15/drivers/net/dsa/rtl83xx/rtl838x.c.
This brings the code style in line with the rtl839x implementation.

Suggested-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-01-05 23:08:13 +01:00
Pascal Ernster
de2dc3feae realtek: return correct error value for phy ops
A behavioural change was introduced with commit 758c88b969 ("realtek:
Whitespace and codestyle cleanup") causing rtl838x_read_phy() and
rtl838x_write_phy() to unconditionally return -ETIMEDOUT. As a result,
probing the device during boot fails:

    Error setting up netdev, freeing it again.
    rtl838x-eth: probe of 1b00a300.ethernet failed with error -5

Fix the bootloop caused by this regression with kernel 5.15 on rtl838x
devices, by properly returning 0 on success.

Tested on a Netgear GS108T v3, a Netgear GS310TP v1, a Zyxel GS1900-8HP
v1 and an HPE 1920-8G.

Fixes: 758c88b969 ("realtek: Whitespace and codestyle cleanup")
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Jan Hoffmann <jan@3e8.eu>
Signed-off-by: Pascal Ernster <git@hardfalcon.net>
2023-01-05 23:08:04 +01:00
Olliver Schinagl
44e0785285 realtek: Migrate to upstream generic MIPS addresses
Upstream generic MIPS uses 0x80100000 and 0x80100400 for the LOADADDR
and ENTRY addresses. As we do not want to diverge from upstream and
patch upstream when not needed, adjust our addresses as well to be
future proof.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Tested-by: Jan Hoffmann <jan@3e8.eu> # HPE 1920-8G, HPE 1920-48G
2023-01-05 21:59:20 +01:00
Birger Koblitz
e143e27c8c realtek: Fix reset register access
The reset register on RTL93xx not merely have bits to execute
a reset of a hardware component, but also configuration bits for
reset procedures. Keep them during executing a reset.

Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[backport to 5.10 kernel]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-12-28 16:53:56 +01:00
Olliver Schinagl
0a83889e89 realtek: Reduce variable scopes
Linus prefers to have loop initializers nice and tightly scoped. In
OpenWRT this has been possible since 41a1a652fb ("kernel: backport
gnu11 upgrade").

This patch cleans up variable scope while trying to do the above for
'simple for loops'.

This cleans up and simplifies some functions and code, and pulls in
variables to a smaller scope.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-12-27 16:33:15 +01:00
Olliver Schinagl
0a931767cf realtek: Replace C++ style comments
The only exception to C++ style comments are SPDX license identifier
markers at the start of C files (even headers have C style markers).

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-12-27 16:33:01 +01:00
Olliver Schinagl
758c88b969 realtek: Whitespace and codestyle cleanup
Fix some ugly whitepsaces and codestyle issues around the realtek sources.

While this is by no means perfect, it catches what it caught.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-12-27 16:31:48 +01:00
Jan Hoffmann
2c40359c5c realtek: add cond_resched to loops accessing the FDB table
A full loop accessing all FDB entries can take several milliseconds
(on RTL839x about 20 ms), so give other kernel tasks a chance to run.
This is especially important for rtl83xx_port_fdb_dump which is itself
called in a loop for all ports by the kernel.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2022-12-27 16:29:57 +01:00