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Author SHA1 Message Date
Heiner Kallweit
e31a9fedc7 Revert "r8169: disable ASPM during NAPI poll"
This reverts commit e1ed3e4d91.

Turned out the change causes a performance regression.

Link: https://lore.kernel.org/netdev/20230713124914.GA12924@green245/T/
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/055c6bc2-74fa-8c67-9897-3f658abb5ae7@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-19 21:09:11 -07:00
Heiner Kallweit
cf2ffdea08 r8169: revert 2ab19de62d ("r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll")
There have been reports that on a number of systems this change breaks
network connectivity. Therefore effectively revert it. Mainly affected
seem to be systems where BIOS denies ASPM access to OS.
Due to later changes we can't do a direct revert.

Fixes: 2ab19de62d ("r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/netdev/e47bac0d-e802-65e1-b311-6acb26d5cf10@freenet.de/T/
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217596
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/57f13ec0-b216-d5d8-363d-5b05528ec5fb@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-19 21:09:11 -07:00
Heiner Kallweit
162d626f30 r8169: fix ASPM-related problem for chip version 42 and 43
Referenced commit missed that for chip versions 42 and 43 ASPM
remained disabled in the respective rtl_hw_start_...() routines.
This resulted in problems as described in the referenced bug
ticket. Therefore re-instantiate the previous logic.

Fixes: 5fc3f6c90c ("r8169: consolidate disabling ASPM before EPHY access")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217635
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-17 07:47:39 +01:00
Heiner Kallweit
733b3e2765 r8169: use dev_err_probe in all appropriate places in rtl_init_one()
In addition to properly handling probe deferrals dev_err_probe()
conveniently combines printing an error message with returning
the errno. So let's use it for every error path in rtl_init_one()
to simplify the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/f0596a19-d517-e301-b649-304f9247b75a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-01 21:39:39 -07:00
Heiner Kallweit
bc590b4754 r8169: check for PCI read error in probe
Check whether first PCI read returns 0xffffffff. Currently, if this is
the case, the user sees the following misleading message:
unknown chip XID fcf, contact r8169 maintainers (see MAINTAINERS file)

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/75b54d23-fefe-2bf4-7e80-c9d3bc91af11@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-05-30 13:14:53 +02:00
Sebastian Andrzej Siewior
d6c36cbc5e r8169: Use a raw_spinlock_t for the register locks.
The driver's interrupt service routine is requested with the
IRQF_NO_THREAD if MSI is available. This means that the routine is
invoked in hardirq context even on PREEMPT_RT. The routine itself is
relatively short and schedules a worker, performs register access and
schedules NAPI. On PREEMPT_RT, scheduling NAPI from hardirq results in
waking ksoftirqd for further processing so using NAPI threads with this
driver is highly recommended since it NULL routes the threaded-IRQ
efforts.

Adding rtl_hw_aspm_clkreq_enable() to the ISR is problematic on
PREEMPT_RT because the function uses spinlock_t locks which become
sleeping locks on PREEMPT_RT. The locks are only used to protect
register access and don't nest into other functions or locks. They are
also not used for unbounded period of time. Therefore it looks okay to
convert them to raw_spinlock_t.

Convert the three locks which are used from the interrupt service
routine to raw_spinlock_t.

Fixes: e1ed3e4d91 ("r8169: disable ASPM during NAPI poll")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20230522134121.uxjax0F5@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-05-23 20:38:12 -07:00
Heiner Kallweit
1a31ae0048 r8169: use new macro netif_subqueue_completed_wake in the tx cleanup path
Use new net core macro netif_subqueue_completed_wake to simplify
the code of the tx cleanup path.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-04-18 12:59:01 +02:00
Heiner Kallweit
8624e9bbef r8169: use new macro netif_subqueue_maybe_stop in rtl8169_start_xmit
Use new net core macro netif_subqueue_maybe_stop in the start_xmit path
to simplify the code. Whilst at it, set the tx queue start threshold to
twice the stop threshold. Before values were the same, resulting in
stopping/starting the queue more often than needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-04-18 12:59:01 +02:00
Heiner Kallweit
5fc3f6c90c r8169: consolidate disabling ASPM before EPHY access
Now that rtl_hw_aspm_clkreq_enable() is a no-op for chip versions < 32,
we can consolidate disabling ASPM before EPHY access in rtl_hw_start().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-20 10:28:29 +00:00
Heiner Kallweit
2ab19de62d r8169: remove ASPM restrictions now that ASPM is disabled during NAPI poll
Now that  ASPM is disabled during NAPI poll, we can remove all ASPM
restrictions. This allows for higher power savings if the network
isn't fully loaded.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
e1ed3e4d91 r8169: disable ASPM during NAPI poll
Several chip versions have problems with ASPM, what may result in
rx_missed errors or tx timeouts. The root cause isn't known but
experience shows that disabling ASPM during NAPI poll can avoid
these problems.

Suggested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
49ef7d846d r8169: prepare rtl_hw_aspm_clkreq_enable for usage in atomic context
Bail out if the function is used with chip versions that don't support
ASPM configuration. In addition remove the delay, it tuned out that
it's not needed, also vendor driver r8125 doesn't have it.

Suggested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
59ee97c0c1 r8169: enable cfg9346 config register access in atomic context
For disabling ASPM during NAPI poll we'll have to unlock access
to the config registers in atomic context. Other code parts
running with config register access unlocked are partially
longer and can sleep. Add a usage counter to enable parallel
execution of code parts requiring unlocked config registers.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
6bc6c4e689 r8169: use spinlock to protect access to registers Config2 and Config5
For disabling ASPM during NAPI poll we'll have to access both registers
in atomic context. Use a spinlock to protect access.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
91c8643578 r8169: use spinlock to protect mac ocp register access
For disabling ASPM during NAPI poll we'll have to access mac ocp
registers in atomic context. This could result in races because
a mac ocp read consists of a write to register OCPDR, followed
by a read from the same register. Therefore add a spinlock to
protect access to mac ocp registers.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-08 09:30:41 +00:00
Heiner Kallweit
ce870af395 r8169: reset bus if NIC isn't accessible after tx timeout
ASPM issues may result in the NIC not being accessible any longer.
In this case disabling ASPM may not work. Therefore detect this case
by checking whether register reads return ~0, and try to make the
NIC accessible again by resetting the secondary bus.

v2:
- add exception handling for the case that pci_reset_bus() fails

Suggested-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-16 13:38:28 +00:00
Jakub Kicinski
a99da46ac0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/usb/r8152.c
  be53771c87 ("r8152: add vendor/device ID pair for Microsoft Devkit")
  ec51fbd1b8 ("r8152: add USB device driver for config selection")
https://lore.kernel.org/all/20230113113339.658c4723@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-12 19:59:56 -08:00
Heiner Kallweit
80c0576ef1 r8169: disable ASPM in case of tx timeout
There are still single reports of systems where ASPM incompatibilities
cause tx timeouts. It's not clear whom to blame, so let's disable
ASPM in case of a tx timeout.

v2:
- add one-time warning for informing the user

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/92369a92-dc32-4529-0509-11459ba0e391@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-11 20:09:03 -08:00
Heiner Kallweit
2ea26b4de6 Revert "r8169: disable detection of chip version 36"
This reverts commit 42666b2c45.

This chip version seems to be very rare, but it exits in consumer
devices, see linked report.

Link: https://stackoverflow.com/questions/75049473/cant-setup-a-wired-network-in-archlinux-fresh-install
Fixes: 42666b2c45 ("r8169: disable detection of chip version 36")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/42e9674c-d5d0-a65a-f578-e5c74f244739@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-09 20:40:28 -08:00
Chunhao Lin
bb41c13c05 r8169: fix dmar pte write access is not set error
When close device, if wol is enabled, rx will be enabled. When open
device it will cause rx packet to be dma to the wrong memory address
after pci_set_master() and system log will show blow messages.

DMAR: DRHD: handling fault status reg 3
DMAR: [DMA Write] Request device [02:00.0] PASID ffffffff fault addr
ffdd4000 [fault reason 05] PTE Write access is not set

In this patch, driver disable tx/rx when close device. If wol is
enabled, only enable rx filter and disable rxdv_gate(if support) to
let hardware only receive packet to fifo but not to dma it.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-12-28 11:58:08 +00:00
Chunhao Lin
ad425666a1 r8169: move rtl_wol_enable_rx() and rtl_prepare_power_down()
There is no functional change. Moving these two functions for following
patch "r8169: fix dmar pte write access is not set error".

Signed-off-by: Chunhao Lin <hau@realtek.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-12-28 11:58:07 +00:00
Heiner Kallweit
42f66a44d8 r8169: enable GRO software interrupt coalescing per default
There are reports about r8169 not reaching full line speed on certain
systems (e.g. SBC's) with a 2.5Gbps link.
There was a time when hardware interrupt coalescing was enabled per
default, but this was changed due to ASPM-related issues on few systems.
So let's use software interrupt coalescing instead and enable it
using new function netdev_sw_irq_coalesce_default_on().

Even with these conservative settings interrupt load on my 1Gbps test
system reduced significantly.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-12-03 21:48:40 +00:00
Juhee Kang
4b6c6065fc r8169: use tp_to_dev instead of open code
The open code is defined as a helper function(tp_to_dev) on r8169_main.c,
which the open code is &tp->pci_dev->dev. The helper function was added
in commit 1e1205b7d3 ("r8169: add helper tp_to_dev"). And then later,
commit f1e911d5d0 ("r8169: add basic phylib support") added
r8169_phylink_handler function but it didn't use the helper function.
Thus, tp_to_dev() replaces the open code. This patch doesn't change logic.

Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20221129161244.5356-1-claudiajkang@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-12-01 13:54:44 +01:00
Denis Kirjanov
eca485d221 drivers: net: convert to boolean for the mac_managed_pm flag
Signed-off-by: Dennis Kirjanov <dkirjanov@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-31 09:10:45 +00:00
Chunhao Lin
3406079bbb r8169: add rtl_disable_rxdvgate()
rtl_disable_rxdvgate() is used for disable RXDV_GATE. It is opposite function
of rtl_enable_rxdvgate().

Disable RXDV_GATE does not have to delay. So in this patch, also remove the
delay after disale RXDV_GATE.

Signed-off-by: Chunhao Lin <hau@realtek.com>
Link: https://lore.kernel.org/r/20220928171356.3951-1-hau@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-30 18:17:06 -07:00
Jakub Kicinski
b48b89f9c1 net: drop the weight argument from netif_napi_add
We tell driver developers to always pass NAPI_POLL_WEIGHT
as the weight to netif_napi_add(). This may be confusing
to newcomers, drop the weight argument, those who really
need to tweak the weight can use netif_napi_add_weight().

Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN
Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-28 18:57:14 -07:00
Heiner Kallweit
42666b2c45 r8169: disable detection of chip version 36
I found no evidence that this chip version ever made it to the mass
market. Therefore disable detection. Like in similar cases before:
If nobody complains, we'll remove support for this chip version after
few months.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/ac622d4a-ae0a-3817-710f-849db4015c78@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-19 14:10:23 -07:00
Heiner Kallweit
c9ae520ac3 r8169: remove rtl_wol_shutdown_quirk()
Since f658b90977 ("r8169: fix DMA being used after buffer free if WoL is
enabled") it has been redundant to disable PCI bus mastering in
rtl_wol_shutdown_quirk(). And since 1200684814 ("r8169: fix failing WoL")
CmdRxEnb is still enabled when we get here. So we can remove the function.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/2391ada0-eac5-ac43-f061-a7a44b0e7f33@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-13 10:29:50 +02:00
Heiner Kallweit
e66d658684 r8169: merge support for chip versions 10, 13, 16
These chip versions are closely related and all of them have no
chip-specific MAC/PHY initialization. Therefore merge support
for the three chip versions.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/469d27e0-1d06-9b15-6c96-6098b3a52e35@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-08 13:12:32 +02:00
Heiner Kallweit
96efd6d014 r8169: remove not needed net_ratelimit() check
We're not in a hot path and don't want to miss this message,
therefore remove the net_ratelimit() check.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 14:49:59 +01:00
Heiner Kallweit
36f9b47457 r8169: remove useless PCI region size check
Let's trust the hardware here and remove this useless check.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 14:26:41 +01:00
Heiner Kallweit
599566c1c3 r8169: use devm_clk_get_optional_enabled() to simplify the code
Now that we have devm_clk_get_optional_enabled(), we don't have to
open-code it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 12:41:13 +01:00
Heiner Kallweit
baa71622cf r8169: remove comment about apparently non-existing chip versions
It's not clear where these entries came from, and as I wrote in the
comment: Not even Realtek's r8101 driver knows these chip id's.
So remove the comment.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 12:41:13 +01:00
Heiner Kallweit
7e04a111cd r8169: merge handling of chip versions 12 and 17 (RTL8168B)
It's not clear why XID's 380 and 381..387 ever got different chip
version id's. VER_12 and VER_17 are handled exactly the same.
Therefore merge handling under the VER_17 umbrella.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 12:41:13 +01:00
Wolfram Sang
f029c781dd net: ethernet: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # For drivers/net/ethernet/mellanox/mlxsw
Acked-by: Geoff Levand <geoff@infradead.org> # For ps3_gelic_net and spider_net_ethtool
Acked-by: Tom Lendacky <thomas.lendacky@amd.com> # For drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
Acked-by: Marcin Wojtas <mw@semihalf.com> # For drivers/net/ethernet/marvell/mvpp2
Reviewed-by: Leon Romanovsky <leonro@nvidia.com> # For drivers/net/ethernet/mellanox/mlx{4|5}
Reviewed-by: Shay Agroskin <shayagr@amazon.com> # For drivers/net/ethernet/amazon/ena
Acked-by: Krzysztof Hałasa <khalasa@piap.pl> # For IXP4xx Ethernet
Link: https://lore.kernel.org/r/20220830201457.7984-3-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-31 14:11:26 -07:00
Heiner Kallweit
efc37109c7 r8169: remove support for chip version 60
Detection of this chip version has been disabled for few kernel versions now.
Nobody complained, so remove support for this chip version.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:24:10 +01:00
Heiner Kallweit
133706a960 r8169: remove support for chip version 50
Detection of this chip version has been disabled for few kernel versions now.
Nobody complained, so remove support for this chip version.

v3:
- rebase patch

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:24:10 +01:00
Heiner Kallweit
8a1ab0c402 r8169: remove support for chip version 49
Detection of this chip version has been disabled for few kernel versions now.
Nobody complained, so remove support for this chip version.

v2:
- fix a typo: RTL_GIGA_MAC_VER_40 -> RTL_GIGA_MAC_VER_50

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:24:10 +01:00
Heiner Kallweit
ebe5989857 r8169: remove support for chip versions 45 and 47
Detection of these chip versions has been disabled for few kernel versions now.
Nobody complained, so remove support for this chip version.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:24:10 +01:00
Heiner Kallweit
44307b27de r8169: remove support for chip version 41
Detection of this chip version has been disabled for few kernel versions now.
Nobody complained, so remove support for this chip version.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:24:10 +01:00
Heiner Kallweit
faa4e04e5e r8169: fix accessing unset transport header
66e4c8d950 ("net: warn if transport header was not set") added
a check that triggers a warning in r8169, see [0].

The commit referenced in the Fixes tag refers to the change from
which the patch applies cleanly, there's nothing wrong with this
commit. It seems the actual issue (not bug, because the warning
is harmless here) was introduced with bdfa4ed681
("r8169: use Giant Send").

[0] https://bugzilla.kernel.org/show_bug.cgi?id=216157

Fixes: 8d520b4de3 ("r8169: work around RTL8125 UDP hw bug")
Reported-by: Erhard F. <erhard_f@mailbox.org>
Tested-by: Erhard F. <erhard_f@mailbox.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/1b2c2b29-3dc0-f7b6-5694-97ec526d51a0@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-06 19:53:21 -07:00
Jakub Kicinski
ee8b7a1156 net: make drivers set the TSO limit not the GSO limit
Drivers should call the TSO setting helper, GSO is controllable
by user space.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-06 12:07:56 +01:00
Heiner Kallweit
54744510fa r8169: improve driver unload and system shutdown behavior on DASH-enabled systems
There's a number of systems supporting DASH remote management.
Driver unload and system shutdown can result in the PHY suspending,
thus making DASH unusable. Improve this by handling DASH being enabled
very similar to WoL being enabled.

Tested-by: Yanko Kaneti <yaneti@declera.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/1de3b176-c09c-1654-6f00-9785f7a4f954@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-17 16:47:32 -07:00
Heiner Kallweit
68650b4e6c r8169: support L1.2 control on RTL8168h
According to Realtek RTL8168h supports the same L1.2 control as RTL8125.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/4784d5ce-38ac-046a-cbfa-5fdd9773f820@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-01 20:27:43 -08:00
Heiner Kallweit
d192181c2c r8169: add rtl_disable_exit_l1()
Add rtl_disable_exit_l1() for ensuring that the chip doesn't
inadvertently exit ASPM L1 when being in a low-power mode.
The new function is called from rtl_prepare_power_down() which
has to be moved in the code to avoid a forward declaration.

According to Realtek OCP register 0xc0ac shadows ERI register 0xd4
on RTL8168 versions from RTL8168g. This allows to simplify the
code a little.

v2:
- call rtl_disable_exit_l1() also if DASH or WoL are enabled

Suggested-by: Chun-Hao Lin <hau@realtek.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-31 11:32:20 +00:00
Heiner Kallweit
c217ab7a39 r8169: enable ASPM L1.2 if system vendor flags it as safe
On some systems there are compatibility issues with ASPM L1.2 and
RTL8125, therefore this state is disabled per default. To allow for
the L1.2 power saving on not affected systems, Realtek provides
vendors that successfully tested ASPM L1.2 the option to flag this
state as safe. According to Realtek this flag will be set first on
certain Chromebox devices.

Suggested-by: Chun-Hao Lin <hau@realtek.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-27 13:54:54 +00:00
Heiner Kallweit
8fe6e67064 r8169: use new PM macros
This is based on series [0] that extended the PM core. Now the compiler
can see the PM callbacks also on systems not defining CONFIG_PM.
The optimizer will remove the functions then in this case.

[0] https://lore.kernel.org/netdev/20211207002102.26414-1-paul@crapouillou.net/

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-25 12:58:09 +00:00
Linus Torvalds
b35b6d4d71 Power management updates for 5.17-rc1
- Add new P-state driver for AMD processors (Huang Rui).
 
  - Fix initialization of min and max frequency QoS requests in the
    cpufreq core (Rafael Wysocki).
 
  - Fix EPP handling on Alder Lake in intel_pstate (Srinivas Pandruvada).
 
  - Make intel_pstate update cpuinfo.max_freq when notified of HWP
    capabilities changes and drop a redundant function call from that
    driver (Rafael Wysocki).
 
  - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
    Stephen Boyd, Vladimir Zapolskiy).
 
  - Fix double devm_remap() in the Mediatek cpufreq driver (Hector Yuan).
 
  - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
    Luba).
 
  - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).
 
  - Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).
 
  - Fix two comments in cpuidle code (Jason Wang, Yang Li).
 
  - Allow model-specific normal EPB value to be used in the intel_epb
    sysfs attribute handling code (Srinivas Pandruvada).
 
  - Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).
 
  - Add safety net to supplier device release in the runtime PM core
    code (Rafael Wysocki).
 
  - Capture device status before disabling runtime PM for it (Rafael
    Wysocki).
 
  - Add new macros for declaring PM operations to allow drivers to
    avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
    update some drivers to use these macros (Paul Cercueil).
 
  - Allow ACPI hardware signature to be honoured during restore from
    hibernation (David Woodhouse).
 
  - Update outdated operating performance points (OPP) documentation
    (Tang Yizhou).
 
  - Reduce log severity for informative message regarding frequency
    transition failures in devfreq (Tzung-Bi Shih).
 
  - Add DRAM frequency controller devfreq driver for Allwinner sunXi
    SoCs (Samuel Holland).
 
  - Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
    Bergmann).
 
  - Add support for new layout of Psys PowerLimit Register on SPR to
    the Intel RAPL power capping driver (Zhang Rui).
 
  - Fix typo in a comment in idle_inject.c (Jason Wang).
 
  - Remove unused function definition from the DTPM (Dynamit Thermal
    Power Management) power capping framework (Daniel Lezcano).
 
  - Reduce DTPM trace verbosity (Daniel Lezcano).
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Merge tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The most signigicant change here is the addition of a new cpufreq
  'P-state' driver for AMD processors as a better replacement for the
  venerable acpi-cpufreq driver.

  There are also other cpufreq updates (in the core, intel_pstate, ARM
  drivers), PM core updates (mostly related to adding new macros for
  declaring PM operations which should make the lives of driver
  developers somewhat easier), and a bunch of assorted fixes and
  cleanups.

  Summary:

   - Add new P-state driver for AMD processors (Huang Rui).

   - Fix initialization of min and max frequency QoS requests in the
     cpufreq core (Rafael Wysocki).

   - Fix EPP handling on Alder Lake in intel_pstate (Srinivas
     Pandruvada).

   - Make intel_pstate update cpuinfo.max_freq when notified of HWP
     capabilities changes and drop a redundant function call from that
     driver (Rafael Wysocki).

   - Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
     Stephen Boyd, Vladimir Zapolskiy).

   - Fix double devm_remap() in the Mediatek cpufreq driver (Hector
     Yuan).

   - Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
     Luba).

   - Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).

   - Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).

   - Fix two comments in cpuidle code (Jason Wang, Yang Li).

   - Allow model-specific normal EPB value to be used in the intel_epb
     sysfs attribute handling code (Srinivas Pandruvada).

   - Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).

   - Add safety net to supplier device release in the runtime PM core
     code (Rafael Wysocki).

   - Capture device status before disabling runtime PM for it (Rafael
     Wysocki).

   - Add new macros for declaring PM operations to allow drivers to
     avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
     update some drivers to use these macros (Paul Cercueil).

   - Allow ACPI hardware signature to be honoured during restore from
     hibernation (David Woodhouse).

   - Update outdated operating performance points (OPP) documentation
     (Tang Yizhou).

   - Reduce log severity for informative message regarding frequency
     transition failures in devfreq (Tzung-Bi Shih).

   - Add DRAM frequency controller devfreq driver for Allwinner sunXi
     SoCs (Samuel Holland).

   - Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
     Bergmann).

   - Add support for new layout of Psys PowerLimit Register on SPR to
     the Intel RAPL power capping driver (Zhang Rui).

   - Fix typo in a comment in idle_inject.c (Jason Wang).

   - Remove unused function definition from the DTPM (Dynamit Thermal
     Power Management) power capping framework (Daniel Lezcano).

   - Reduce DTPM trace verbosity (Daniel Lezcano)"

* tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
  x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error
  cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State
  cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment
  cpuidle: use default_groups in kobj_type
  x86: intel_epb: Allow model specific normal EPB value
  MAINTAINERS: Add AMD P-State driver maintainer entry
  Documentation: amd-pstate: Add AMD P-State driver introduction
  cpufreq: amd-pstate: Add AMD P-State performance attributes
  cpufreq: amd-pstate: Add AMD P-State frequencies attributes
  cpufreq: amd-pstate: Add boost mode support for AMD P-State
  cpufreq: amd-pstate: Add trace for AMD P-State module
  cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution
  cpufreq: amd-pstate: Add fast switch function for AMD P-State
  cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors
  ACPI: CPPC: Add CPPC enable register function
  ACPI: CPPC: Check present CPUs for determining _CPC is valid
  ACPI: CPPC: Implement support for SystemIO registers
  x86/msr: Add AMD CPPC MSR definitions
  x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag
  cpufreq: use default_groups in kobj_type
  ...
2022-01-10 20:34:00 -08:00
Thomas Gleixner
1bd3277188 r8169: don't use pci_irq_vector() in atomic context
Since referenced change pci_irq_vector() can't be used in atomic
context any longer. This conflicts with our usage of this function
in rtl8169_netpoll(). Therefore store the interrupt number in
struct rtl8169_private.

Fixes: 495c66aca3 ("genirq/msi: Convert to new functions")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/3cd24763-f307-78f5-76ed-a5fbf315fb28@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-28 15:59:05 -08:00
Paul Cercueil
5ef11c56b2 r8169: Avoid misuse of pm_ptr() macro
The pm_ptr() macro should be used when the suspend and resume functions
can be compiled independently of the CONFIG_PM Kconfig option.

In the case of this driver, the suspend and resume functions are inside
a section protected by a #ifdef CONFIG_PM guard. Therefore pm_ptr()
should not be used.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-17 16:04:14 +01:00