Rename the downstream ag71xx driver to ag71xx-legacy.
It allows both upstream and downstream drivers to be compiled into modules.
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Link: https://github.com/openwrt/openwrt/pull/15926
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Currently, of_get_ethdev_address() return is checked for any return error
code which means that trying to get the MAC from NVMEM cells that is backed
by MTD will fail if it was not probed before ag71xx.
So, lets check the return error code for EPROBE_DEFER and defer the ag71xx
probe in that case until the underlying NVMEM device is live.
Link: https://github.com/openwrt/openwrt/pull/15752
Signed-off-by: Robert Marko <robimarko@gmail.com>
There is no need to use 'list_for_each_entry_safe' here, as nothing is
removed from the list in the 'for' loop.
Use 'list_for_each_entry' instead, it is slightly less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://github.com/openwrt/openwrt/pull/15435
Link: https://github.com/openwrt/openwrt/pull/15435
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
The 5.15 kenel config file, patches and version switches will be
removed in this patch. We will introduce kernel 6.6 support soon.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
This removes unneeded kernel version switches from the targets after
kernel 5.10 has been dropped.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Kconfig docs say:
> The default value deliberately defaults to 'n' in order to avoid
> bloating the build.
Apply this rule everywhere, to avoid more cloning of bad examples
Signed-off-by: Tony Butler <spudz76@gmail.com>
This allows the user to specify a larger tx ring buffer size via ethtool.
Having symmetrical ring buffer sizes increases throughput on high bandwidth
(1 gbps tested) network connections.
The default value is not changed so the same behaviour is saved.
Signed-off-by: Robert Meijer <robert.s.meijer@gmail.com>
[ improve title, commit description and wrap to 80 columns ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
napi_build_skb() reuses NAPI skbuff_head cache in order to save some
cycles on freeing/allocating skbuff_heads on every new Rx or completed
Tx.
Use napi_consume_skb() to feed the cache with skbuff_heads of completed
Tx so it's never empty.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[ fixed commit title ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
The phy-mask property is read by the ag71xx-mdio driver to set the
mii_bus's phy_mask field. On OF platforms, the devicetree is expected to
provide all present ethernet phy-s however, so the phy_mask field is
later set to all-ones. Having a devicetree override is of no use then,
so let's drop it.
Cc: David Bauer <mail@david-bauer.net>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Acked-by: David Bauer <mail@david-bauer.net>
ag71xx_probe is registering ag71xx_interrupt as handler for the gmac0/gmac1
interrupts. The handler is trying to use napi_schedule to handle the
processing of packets. But the netif_napi_add for this device is
called a lot later in ag71xx_probe.
It can therefore happen that a still running gmac0/gmac1 is triggering the
interrupt handler with a bit from AG71XX_INT_POLL set in
AG71XX_REG_INT_STATUS. The handler will then call napi_schedule and the
napi code will crash the system because the ag->napi is not yet
initialized:
libphy: Fixed MDIO Bus: probed
CPU 0 Unable to handle kernel paging request at virtual address 00000000, epc == 00000000, ra == 81373408
Oops[#1]:
CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.152 #0
$ 0 : 00000000 00000001 00000000 8280bf28
$ 4 : 82a98cb0 00000000 81620000 00200140
$ 8 : 00000000 00000000 74657272 7570743a
$12 : 0000005b 8280bdb9 ffffffff ffffffff
$16 : 00000001 82a98cb0 00000000 8280bf27
$20 : 8280bf28 81620000 ffff8b00 8280bf30
$24 : 00000000 8125af9c
$28 : 82828000 8280bed8 81610000 81373408
Hi : 00005fff
Lo : 2e48f657
epc : 00000000 0x0
ra : 81373408 __napi_poll+0x3c/0x11c
Status: 1100dc03 KERNEL EXL IE
Cause : 00800008 (ExcCode 02)
BadVA : 00000000
PrId : 00019750 (MIPS 74Kc)
Modules linked in:
Process swapper (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=00000000)
Stack : ffff8afb ffff8afa 81620000 00200140 00000000 82a98cb0 00000008 0000012c
81625620 81373684 ffffffff ffffffff ffffffef 00000008 816153d8 81620000
815b0d60 815bbd54 00000000 81753700 8280bf28 8280bf28 8280bf30 8280bf30
81753748 00000008 00000003 00000004 0000000c 00000100 3fffffff 8175373c
816059f0 814ddb48 00000001 8160ab30 81615488 810618bc 00000006 00000000
...
Call Trace:
[<81373684>] net_rx_action+0xfc/0x26c
[<814ddb48>] __do_softirq+0x118/0x2ec
[<810618bc>] handle_percpu_irq+0x50/0x80
[<8125ab8c>] plat_irq_dispatch+0x94/0xc8
[<81004e98>] handle_int+0x138/0x144
Code: (Bad address in epc)
---[ end trace a60d797432b656b2 ]---
The gmcc0/gmac1 must be brought in a state in which it doesn't signal a
AG71XX_INT_POLL related status bits as interrupt before registering the
interrupt handler. ag71xx_hw_start will take care of re-initializing the
AG71XX_REG_INT_ENABLE.
Fixes: f529a3742043 ("surprise :p")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
In the current state, nvmem cells are only detected on platform device.
To quickly fix the problem, we register the affected problematic driver
with the of_platform but that is more an hack than a real solution.
Backport from net-next the required patch so that nvmem can work also
with non-platform devices and rework our current patch.
Drop the mediatek and dsa workaround and rework the ath10k patches.
Rework every driver that use the of_get_mac_address api.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
The mode on the SGMII SerDes on the QCA9563 is 1000 Base-X by default.
This only allows for 1000 Mbit/s links, however when used with an SGMII
PHY in 100 Mbit/s link mode, the link remains dead.
This strictly has nothing to do with the SerDes calibration, however it
is done at the same point in the QCA reference U-Boot which is the
blueprint for everything happening here. As the current state is more or
less a hack, this should be fine.
This fixes the issues outlined above on a TP-Link EAP-225 Outdoor.
Reported-by: Tom Herbers <freifunk@tomherbers.de>
Tested-by: Tom Herbers <freifunk@tomherbers.de>
Signed-off-by: David Bauer <mail@david-bauer.net>
As mangix pointed out on IRC, ioremap and ioremap_nocache are
functionally equivalent on kenrel 5.4 and 5.10.
Therefore we can use ioremap regardless of the kernel the driver
gets compiled for.
Signed-off-by: David Bauer <mail@david-bauer.net>
Add statistics to ethtool. The statistics can be useful to
debug network issues.
The code is backported from mainline ag71xx.c driver.
Signed-off-by: Leon Leijssen <leon.git@leijssen.info>
This commit add a workaround for non working SGMII link observed on some
QCA956x SoCs. The workaround originates part from the U-Boot source code
from QCA, part from the implementation from TP-Link found in the GPL
tarball for the EAP245v1.
Extends commit 0d416a8d3b990e3b78628f0e7546527709c877f7 for QCA956x.
Note that reset is the same on QCA955x and QCA956x, same register offset
and values.
Auto calibration is done on u-boot, but always fall back to default value
0x7. Add a DTS entry serdes-cal in case a device require another value.
Signed-off-by: Julien Dusser <julien.dusser@free.fr>
[Sander Vanheule:
Minor code style fixes,
Remove hunk adding qca956x-serdes-fixup to a missing DTS,
Remove variable err that was only assigned,
Rename function to sgmii_serdes_init,
Lower priority of serdes call message to pr_debug]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Some bootloaders do not set up gmac0 properly, leaving it disconnected
from the sgmii interface. If the user specificies phy-mode sgmii, then
use the gmac-config/device node to ensure the mux is configured
correctly.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Currently, ag71xx will trigger a warning when TX xor RX-Delay modes are
enabled.
Handle them identical to the already implemented RGMII modes, as they
are only different for the attached PHY.
Signed-off-by: David Bauer <mail@david-bauer.net>
ath79 does not support kernels prior to 4.19 anymore.
Remove legacy code for those kernels from the ag71xx driver.
Signed-off-by: David Bauer <mail@david-bauer.net>
The ag71xx driver from Linux 5.4 currently has various shortcomings
when used with OpenWrt compared to our downstream version.
For example, the upstream driver does not support modifying the ethernet
clock and configuring RGMII delays on the MAC side.
While we should certainly switch to the upstream driver, the amount of
necessary patches would make it cumbersome to work with. It's also
highly likely we won't be able to finish patching the upstream driver in
time for a Linux 5.4 release.
Tested on Siemens WS-AP3610.
CC: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David Bauer <mail@david-bauer.net>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David Bauer <mail@david-bauer.net>
[refreshed]
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
* Sync the patches with the changes done for kernel 4.19
* Use KERNEL_TESTING_PATCHVER
* Refresh the configuration
* Fix multiple compile bugs in the patches
* Only add own ag71xx files for kernel 4.19 and use upstream version for
5.4.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This new function make batch processing of network packets possible,
which slightly improves performance.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Tested-by: Rosen Penev <rosenp@gmail.com>
This commit adds a workaround for the loss of the SGMII link observed on
the QCA955x generation of SoCs. The workaround originates part from the
U-Boot source code, part from the implementation from AVM found in the
GPL tarball for the AVM FRITZ!WLAN Repeater 450E.
The bug results in a stuck SGMII link between the PHY device and the SoC
side. This has only been observed with the Atheros AR8033 PHY and most
likely all devices using such combination are affected.
It is worked around by reading a hidden SGMII status register and
issuing a SGMII PHY reset until the link becomes useable again.
Signed-off-by: David Bauer <mail@david-bauer.net>
tx_size was just declared above and set to BIT(tx->order)
Use the declaration instead, which could avoid a pointer deref
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
All other instances of this identical declaration fetch the
value directly from the ring_order.
Also do it here.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Upstream commit 246902bdf562d45ea3475fac64c93048a7a39f01
Which contains following explanation:
--
There is no need to use GFP_ATOMIC here, GFP_KERNEL should be enough.
The 'kcalloc()' just a few lines above, already uses GFP_KERNEL.
--
Looking at the code, all other descriptors also use plain GFP_KERNEL
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
The ag71xx code did not include a case for the "rgmii-id" PHY mode in the
code. There are devices that need this mode, so I'm adding it.
Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
gmac0 may need a phy on builtin switch, which can be unavailable
if gmac0 is probed before builtin switch.
Return -EPROBE_DEFER in this case so that gmac0 can be probed
later.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
ethtool doesn't work currently as phy_ethtool_ioctl expects user space
pointer, but it's being passed kernel one. Fixing it doesn't make sense
as {s,g}et_settings were deprecated anyway. So let's rather remove
phy_ethtool_ioctl and use new {s,g}et_link_ksettings instead. While at
it, update nway_reset as well.
Cc: John Crispin <john@phrozen.org>
Ref: https://bugs.openwrt.org/index.php?do=details&task_id=1982
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This ioctl is currently routed through generic interface code:
dev_ioctl
dev_ethtool
__ethtool_get_link_ksettings
phy_ethtool_ioctl
Cc: John Crispin <john@phrozen.org>
Cc: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
In ar71xx we check for stuck DMA on devices which fall in the is_ar724x
SoC group (ar724x, ar933x, ar934x, qca9533, tp9343, qca955x, qca956x).
In ath79 we're currently performing this check only for devices with
ar7240 SoC, so this patch tries to sync the dma stuck checking behavior
with what is being done in ar71xx.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
linux 4.19 doesn't accept a NULL device for these functions.
It also complains that the device struct in net_device doesn't have
a dma_mask set.
Pass the device struct from platform_device for these functions.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Kernel newer than 4.15 dropped "data" field and used from_timer
to cast out the parent struct pointer for current timer.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
It is unused by default and upstream is trying to remove it as it has
negative effects when the driver is under load. Upstream explanation:
netpoll: avoid capture effects for NAPI drivers
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC).
This capture, showing one ksoftirqd eating all cycles
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.
It seems that all networking drivers that do use NAPI
for their TX completions, should not provide a ndo_poll_controller() :
Most NAPI drivers have netpoll support already handled
in core networking stack, since netpoll_poll_dev(
uses poll_napi(dev) to iterate through registered
NAPI contexts for a device.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
While converting Nanostation M XW from current ar71xx code to ath79 I've
hit one issue, where the ethernet networking wasn't working, so I was
checking every bit in the networking setup path between ar71xx and
ath79.
I've came to the following code in ar71xx/mach-ubnt-xm.c:
static void __init ubnt_xw_init(void) {
...
ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_MII_GMAC0 |
AR934X_ETH_CFG_MII_GMAC0_SLAVE);
...
}
Where this code is setting AR934X_ETH_CFG_MII_GMAC0_SLAVE bit in
AR934X_GMAC_REG_ETH_CFG register, but I couldn't find a way of setting
this bit from DTS, so this patch adds `mii-gmac0-slave` DTS property
which allows setting of this bit in `gmac-config`, which is then used in
Nanostation M XW DTS.
Tested-by: Joe Ayers <ae6xe@arrl.net>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
On ar933x and later chips, there are separated mac/mdio resets, but
resetting the entire gmac block with register values requires both
mac_reset and mdio_reset to be asserted together.
Add support for optional mdio reset so that we can do a full reset
if needed.
This patch also replaced deprecated devm_reset_control_get for
mac reset.
To use this feature, the following is needed:
1. drop "simple-mfd" compatible to register mdio0 after gmac init
so that mdio registers aren't reset after initialization.
2. move mdio reset from mdio-bus to its parent eth node.
NOTE: This can't be applied on gmac1 with builtin switch since we
haven't add a feature to defer probe if phy connection failed.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
remove the hacky checking of "simple-mfd" compatible
also add some comments explaining that piece of code.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
using the devm api makes the code simpler.
also drop unneeded memory free from ag71xx_remove since they are
allocated using devm apis.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
phy_modes() in phy.h can convert PHY modes to string with supports
for all available PHY modes.
Also add a space in mode printing to make it look better.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
