389 Commits

Author SHA1 Message Date
Hayes Wang
cce8334f4a r8152: move setting r8153b_rx_agg_chg_indicate()
Move setting r8153b_rx_agg_chg_indicate() for 2.5G devices. The
r8153b_rx_agg_chg_indicate() has to be called after enabling tx/rx.
Otherwise, the coalescing settings are useless.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-01 07:32:04 +01:00
Hayes Wang
61b0ad6f58 r8152: fix the poor throughput for 2.5G devices
Fix the poor throughput for 2.5G devices, when changing the speed from
auto mode to force mode. This patch is used to notify the MAC when the
mode is changed.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-01 07:32:04 +01:00
Hayes Wang
8ceda6d5a1 r8152: fix flow control issue of RTL8156A
The feature of flow control becomes abnormal, if the device sends a
pause frame and the tx/rx is disabled before sending a release frame. It
causes the lost of packets.

Set PLA_RX_FIFO_FULL and PLA_RX_FIFO_EMPTY to zeros before disabling the
tx/rx. And, toggle FC_PATCH_TASK before enabling tx/rx to reset the flow
control patch and timer. Then, the hardware could clear the state and
the flow control becomes normal after enabling tx/rx.

Besides, remove inline for fc_pause_on_auto() and fc_pause_off_auto().

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-05-01 07:32:04 +01:00
Douglas Anderson
5cc33f139e r8152: Add __GFP_NOWARN to big allocations
When memory is a little tight on my system, it's pretty easy to see
warnings that look like this.

  ksoftirqd/0: page allocation failure: order:3, mode:0x40a20(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
  ...
  Call trace:
   dump_backtrace+0x0/0x1e8
   show_stack+0x20/0x2c
   dump_stack_lvl+0x60/0x78
   dump_stack+0x18/0x38
   warn_alloc+0x104/0x174
   __alloc_pages+0x588/0x67c
   alloc_rx_agg+0xa0/0x190 [r8152 ...]
   r8152_poll+0x270/0x760 [r8152 ...]
   __napi_poll+0x44/0x1ec
   net_rx_action+0x100/0x300
   __do_softirq+0xec/0x38c
   run_ksoftirqd+0x38/0xec
   smpboot_thread_fn+0xb8/0x248
   kthread+0x134/0x154
   ret_from_fork+0x10/0x20

On a fragmented system it's normal that order 3 allocations will
sometimes fail, especially atomic ones. The driver handles these
failures fine and the WARN just creates spam in the logs for this
case. The __GFP_NOWARN flag is exactly for this situation, so add it
to the allocation.

NOTE: my testing is on a 5.15 system, but there should be no reason
that this would be fundamentally different on a mainline kernel.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/20230406171411.1.I84dbef45786af440fd269b71e9436a96a8e7a152@changeid
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-07 20:12:46 -07:00
Hayes Wang
02767440e1 r8152: reduce the control transfer of rtl8152_get_version()
Reduce the control transfer by moving calling rtl8152_get_version() in
rtl8152_probe(). This could prevent from calling rtl8152_get_version()
for unnecessary situations. For example, after setting config #2 for the
device, there are two interfaces and rtl8152_probe() may be called
twice. However, we don't need to call rtl8152_get_version() for this
situation.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-20 18:06:09 -08:00
Hayes Wang
95a4c1d617 r8152: remove rtl_vendor_mode function
After commit ec51fbd1b8a2 ("r8152: add USB device driver for
config selection"), the code about changing USB configuration
in rtl_vendor_mode() wouldn't be run anymore. Therefore, the
function could be removed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-20 18:06:09 -08:00
Hayes Wang
0d4cda805a r8152: avoid to change cfg for all devices
The rtl8152_cfgselector_probe() should set the USB configuration to the
vendor mode only for the devices which the driver (r8152) supports.
Otherwise, no driver would be used for such devices.

Fixes: ec51fbd1b8a2 ("r8152: add USB device driver for config selection")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-18 14:27:34 +00:00
Jakub Kicinski
a99da46ac0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/usb/r8152.c
  be53771c87f4 ("r8152: add vendor/device ID pair for Microsoft Devkit")
  ec51fbd1b8a2 ("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
Andre Przywara
be53771c87 r8152: add vendor/device ID pair for Microsoft Devkit
The Microsoft Devkit 2023 is a an ARM64 based machine featuring a
Realtek 8153 USB3.0-to-GBit Ethernet adapter. As in their other
machines, Microsoft uses a custom USB device ID.

Add the respective ID values to the driver. This makes Ethernet work on
the MS Devkit device. The chip has been visually confirmed to be a
RTL8153.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20230111133228.190801-1-andre.przywara@arm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-01-12 14:26:04 +01:00
Bjørn Mork
ec51fbd1b8 r8152: add USB device driver for config selection
Subclassing the generic USB device driver to override the
default configuration selection regardless of matching interface
drivers.

The r815x family devices expose a vendor specific function which
the r8152 interface driver wants to handle.  This is the preferred
device mode. Additionally one or more USB class functions are
usually supported for hosts lacking a vendor specific driver. The
choice is USB configuration based, with one alternate function per
configuration.

Example device with both NCM and ECM alternate cfgs:

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  4 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  3
P:  Vendor=0bda ProdID=8156 Rev=31.00
S:  Manufacturer=Realtek
S:  Product=USB 10/100/1G/2.5G LAN
S:  SerialNumber=001000001
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=256mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=00 Driver=r8152
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=83(I) Atr=03(Int.) MxPS=   2 Ivl=128ms
C:  #Ifs= 2 Cfg#= 2 Atr=a0 MxPwr=256mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=
E:  Ad=83(I) Atr=03(Int.) MxPS=  16 Ivl=128ms
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=01 Driver=
I:  If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
C:  #Ifs= 2 Cfg#= 3 Atr=a0 MxPwr=256mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=
E:  Ad=83(I) Atr=03(Int.) MxPS=  16 Ivl=128ms
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=
I:  If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms

A problem with this is that Linux will prefer class functions over
vendor specific functions. Using the above example, Linux defaults
to cfg #2, running the device in a sub-optimal NCM mode.

Previously we've attempted to work around the problem by
blacklisting the devices in the ECM class driver "cdc_ether", and
matching on the ECM class function in the vendor specific interface
driver. The latter has been used to switch back to the vendor
specific configuration when the driver is probed for a class
function.

This workaround has several issues;
- class driver blacklists is additional maintanence cruft in an
  unrelated driver
- class driver blacklists prevents users from optionally running
  the devices in class mode
- each device needs double match entries in the vendor driver
- the initial probing as a class function slows down device
  discovery

Now these issues have become even worse with the introduction of
firmware supporting both NCM and ECM, where NCM ends up as the
default mode in Linux. To use the same workaround, we now have
to blacklist the devices in to two different class drivers and
add yet another match entry to the vendor specific driver.

This patch implements an alternative workaround strategy -
independent of the interface drivers.  It avoids adding a
blacklist to the cdc_ncm driver and will let us remove the
existing blacklist from the cdc_ether driver.

As an additional bonus, removing the blacklists allow users to
select one of the other device modes if wanted.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-09 07:39:53 +00:00
Jakub Kicinski
e52f7c1ddf Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in the left-over fixes before the net-next pull-request.

Conflicts:

drivers/net/ethernet/mediatek/mtk_ppe.c
  ae3ed15da588 ("net: ethernet: mtk_eth_soc: fix state in __mtk_foe_entry_clear")
  9d8cb4c096ab ("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc")
https://lore.kernel.org/all/6cb6893b-4921-a068-4c30-1109795110bb@tessares.net/

kernel/bpf/helpers.c
  8addbfc7b308 ("bpf: Gate dynptr API behind CAP_BPF")
  5679ff2f138f ("bpf: Move bpf_loop and bpf_for_each_map_elem under CAP_BPF")
  8a67f2de9b1d ("bpf: expose bpf_strtol and bpf_strtoul to all program types")
https://lore.kernel.org/all/20221003201957.13149-1-daniel@iogearbox.net/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-03 17:44:18 -07:00
Andrew Gaul
93e2be344a r8152: Rate limit overflow messages
My system shows almost 10 million of these messages over a 24-hour
period which pollutes my logs.

Signed-off-by: Andrew Gaul <gaul@google.com>
Link: https://lore.kernel.org/r/20221002034128.2026653-1-gaul@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-03 16:48:31 -07:00
André Apitzsch
e26c258434 r8152: Add MAC passthrough support for Lenovo Travel Hub
The Lenovo USB-C Travel Hub supports MAC passthrough.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-03 09:53:38 +01:00
Sven van Ashbrook
7305b78ae4 r8152: allow userland to disable multicast
The rtl8152 driver does not disable multicasting when userspace asks
it to. For example:
 $ ifconfig eth0 -multicast -allmulti
 $ tcpdump -p -i eth0  # will still capture multicast frames

Fix by clearing the device multicast filter table when multicast and
allmulti are both unset.

Tested as follows:
- Set multicast on eth0 network interface
- verify that multicast packets are coming in:
  $ tcpdump -p -i eth0
- Clear multicast and allmulti on eth0 network interface
- verify that no more multicast packets are coming in:
  $ tcpdump -p -i eth0

Signed-off-by: Sven van Ashbrook <svenva@chromium.org>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/20220830045923.net-next.v1.1.I4fee0ac057083d4f848caf0fa3a9fd466fc374a0@changeid
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-31 14:55:50 -07:00
Wolfram Sang
fb3ceec187 net: 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>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN
Link: https://lore.kernel.org/r/20220830201457.7984-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-31 14:11:07 -07:00
Jean-Francois Le Fillatre
1bd3a38307 r8152: add PID for the Lenovo OneLink+ Dock
The Lenovo OneLink+ Dock contains an RTL8153 controller that behaves as
a broken CDC device by default. Add the custom Lenovo PID to the r8152
driver to support it properly.

Also, systems compatible with this dock provide a BIOS option to enable
MAC address passthrough (as per Lenovo document "ThinkPad Docking
Solutions 2017"). Add the custom PID to the MAC passthrough list too.

Tested on a ThinkPad 13 1st gen with the expected results:

passthrough disabled: Invalid header when reading pass-thru MAC addr
passthrough enabled:  Using pass-thru MAC addr XX:XX:XX:XX:XX:XX

Signed-off-by: Jean-Francois Le Fillatre <jflf_kernel@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-27 16:35:41 +01:00
Jean-Francois Le Fillatre
76d7df9406 r8152: add PID for the Lenovo OneLink+ Dock
The Lenovo OneLink+ Dock contains an RTL8153 controller that behaves as
a broken CDC device by default. Add the custom Lenovo PID to the r8152
driver to support it properly.

Also, systems compatible with this dock provide a BIOS option to enable
MAC address passthrough (as per Lenovo document "ThinkPad Docking
Solutions 2017"). Add the custom PID to the MAC passthrough list too.

Tested on a ThinkPad 13 1st gen with the expected results:

passthrough disabled: Invalid header when reading pass-thru MAC addr
passthrough enabled:  Using pass-thru MAC addr XX:XX:XX:XX:XX:XX

Signed-off-by: Jean-Francois Le Fillatre <jflf_kernel@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-26 11:40:03 +01:00
Hayes Wang
b75d612014 r8152: fix the RX FIFO settings when suspending
The RX FIFO would be changed when suspending, so the related settings
have to be modified, too. Otherwise, the flow control would work
abnormally.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216333
Reported-by: Mark Blakeney <mark.blakeney@bullet-systems.net>
Fixes: cdf0b86b250f ("r8152: fix a WOL issue")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-22 14:28:59 +01:00
Hayes Wang
6dc4df12d7 r8152: fix the units of some registers for RTL8156A
The units of PLA_RX_FIFO_FULL and PLA_RX_FIFO_EMPTY are 16 bytes.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-22 14:28:59 +01:00
Hayes Wang
cdf0b86b25 r8152: fix a WOL issue
This fixes that the platform is waked by an unexpected packet. The
size and range of FIFO is different when the device enters S3 state,
so it is necessary to correct some settings when suspending.

Regardless of jumbo frame, set RMS to 1522 and MTPS to MTPS_DEFAULT.
Besides, enable MCU_BORW_EN to update the method of calculating the
pointer of data. Then, the hardware could get the correct data.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/20220718082120.10957-391-nic_swsd@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19 17:10:56 -07:00
Hayes Wang
057cc8c900 r8152: fix accessing unset transport header
A warning is triggered by commit 66e4c8d95008 ("net: warn if transport
header was not set"). The warning is harmless, because the value from
skb_transport_offset() is only used for skb_is_gso() is true or the
skb->ip_summed is equal to CHECKSUM_PARTIAL.

Fixes: 66e4c8d95008 ("net: warn if transport header was not set")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-13 14:52:49 +01:00
David Ober
f01cdcf891 net: usb: r8152: Add in new Devices that are supported for Mac-Passthru
Lenovo Thunderbolt 4 Dock, and other Lenovo USB Docks are using the
original Realtek USB ethernet Vendor and Product IDs
If the Network device is Realtek verify that it is on a Lenovo USB hub
before enabling the passthru feature

This also adds in the device IDs for the Lenovo USB Dongle and one other
USB-C dock

V2 fix formating of code
V3 remove Generic define for Device ID 0x8153 and change it to use value
V4 rearrange defines and case statement to put them in better order
v5 create helper function to do the testing work as suggested

Signed-off-by: David Ober <dober6023@gmail.com>
Link: https://lore.kernel.org/r/20220517180539.25839-1-dober6023@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19 17:21:24 -07:00
Jakub Kicinski
8ded532cd1 r8152: switch to netif_napi_add_weight()
r8152 uses a custom napi weight, switch to the new
API for setting custom weight.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-08 11:33:57 +01:00
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
Jakub Kicinski
b9adba350a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-05 14:36:10 -08:00
Aaron Ma
00fcf8c7dd Revert "net: usb: r8152: Add MAC passthrough support for more Lenovo Docks"
This reverts commit f77b83b5bbab53d2be339184838b19ed2c62c0a5.

This change breaks multiple usb to ethernet dongles attached on Lenovo
USB hub.

Fixes: f77b83b5bbab ("net: usb: r8152: Add MAC passthrough support for more Lenovo Docks")
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Link: https://lore.kernel.org/r/20220105155102.8557-1-aaron.ma@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-05 10:11:40 -08:00
Jakub Kicinski
8b3f913322 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/net/sock.h
  commit 8f905c0e7354 ("inet: fully convert sk->sk_rx_dst to RCU rules")
  commit 43f51df41729 ("net: move early demux fields close to sk_refcnt")
  https://lore.kernel.org/all/20211222141641.0caa0ab3@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-23 16:09:58 -08:00
Hayes Wang
b24edca309 r8152: sync ocp base
There are some chances that the actual base of hardware is different
from the value recorded by driver, so we have to reset the variable
of ocp_base to sync it.

Set ocp_base to -1. Then, it would be updated and the new base would be
set to the hardware next time.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-23 09:56:06 -08:00
Hayes Wang
45bf944e67 r8152: fix the force speed doesn't work for RTL8156
It needs to set mdio force mode. Otherwise, link off always occurs when
setting force speed.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-23 09:56:06 -08:00
Hao Chen
7462494408 ethtool: extend ringparam setting/getting API with rx_buf_len
Add two new parameters kernel_ringparam and extack for
.get_ringparam and .set_ringparam to extend more ring params
through netlink.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-22 12:31:49 +00:00
Aaron Ma
f77b83b5bb net: usb: r8152: Add MAC passthrough support for more Lenovo Docks
Like ThinkaPad Thunderbolt 4 Dock, more Lenovo docks start to use the original
Realtek USB ethernet chip ID 0bda:8153.

Lenovo Docks always use their own IDs for usb hub, even for older Docks.
If parent hub is from Lenovo, then r8152 should try MAC passthrough.
Verified on Lenovo TBT3 dock too.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-17 14:46:19 +00:00
Jakub Kicinski
9fe1155233 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-07 15:24:06 -07:00
Jakub Kicinski
49ed8dde37 net: usb: use eth_hw_addr_set() for dev->addr_len cases
Convert usb drivers from memcpy(... dev->addr_len)
to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, dev->addr_len)
  + eth_hw_addr_set(dev, np)

Manually checked these are either usbnet or pure etherdevs.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-05 13:16:48 +01:00
Hayes Wang
baf33d7a75 r8152: avoid to resubmit rx immediately
For the situation that the disconnect event comes very late when the
device is unplugged, the driver would resubmit the RX bulk transfer
after getting the callback with -EPROTO immediately and continually.
Finally, soft lockup occurs.

This patch avoids to resubmit RX immediately. It uses a workqueue to
schedule the RX NAPI. And the NAPI would resubmit the RX. It let the
disconnect event have opportunity to stop the submission before soft
lockup.

Reported-by: Jason-ch Chen <jason-ch.chen@mediatek.com>
Tested-by: Jason-ch Chen <jason-ch.chen@mediatek.com>
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-05 12:38:39 +01:00
Jakub Kicinski
af804e6db9 net: usb: use eth_hw_addr_set() instead of ether_addr_copy()
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Convert net/usb from ether_addr_copy() to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - ether_addr_copy(dev->dev_addr, np)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-02 14:18:25 +01:00
Yufeng Mo
f3ccfda193 ethtool: extend coalesce setting uAPI with CQE mode
In order to support more coalesce parameters through netlink,
add two new parameter kernel_coal and extack for .set_coalesce
and .get_coalesce, then some extra info can return to user with
the netlink API.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-24 07:38:29 -07:00
Jakub Kicinski
f444fea789 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/ptp/Kconfig:
  55c8fca1dae1 ("ptp_pch: Restore dependency on PCI")
  e5f31552674e ("ethernet: fix PTP_1588_CLOCK dependencies")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-19 18:09:18 -07:00
Hayes Wang
6633fb83f1 r8152: fix the maximum number of PLA bp for RTL8153C
The maximum PLA bp number of RTL8153C is 16, not 8. That is, the
bp 0 ~ 15 are at 0xfc28 ~ 0xfc46, and the bp_en is at 0xfc48.

Fixes: 195aae321c82 ("r8152: support new chips")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-19 12:19:30 +01:00
Hayes Wang
a876a33d2a r8152: fix writing USB_BP2_EN
The register of USB_BP2_EN is 16 bits, so we should use
ocp_write_word(), not ocp_write_byte().

Fixes: 9370f2d05a2a ("support request_firmware for RTL8153")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-19 12:19:30 +01:00
Arnd Bergmann
a76053707d dev_ioctl: split out ndo_eth_ioctl
Most users of ndo_do_ioctl are ethernet drivers that implement
the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware
timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.

Separate these from the few drivers that use ndo_do_ioctl to
implement SIOCBOND, SIOCBR and SIOCWANDEV commands.

This is a purely cosmetic change intended to help readers find
their way through the implementation.

Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27 20:11:45 +01:00
Takashi Iwai
776ac63a98 r8152: Fix a deadlock by doubly PM resume
r8152 driver sets up the MAC address at reset-resume, while
rtl8152_set_mac_address() has the temporary autopm get/put.  This may
lead to a deadlock as the PM lock has been already taken for the
execution of the runtime PM callback.

This patch adds the workaround to avoid the superfluous autpm when
called from rtl8152_reset_resume().

Link: https://bugzilla.suse.com/show_bug.cgi?id=1186194
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-14 14:57:55 -07:00
Takashi Iwai
9c23aa5147 r8152: Fix potential PM refcount imbalance
rtl8152_close() takes the refcount via usb_autopm_get_interface() but
it doesn't release when RTL8152_UNPLUG test hits.  This may lead to
the imbalance of PM refcount.  This patch addresses it.

Link: https://bugzilla.suse.com/show_bug.cgi?id=1186194
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-14 14:57:55 -07:00
Jakub Kicinski
adc2e56ebe Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflicts in net/can/isotp.c and
tools/testing/selftests/net/mptcp/mptcp_connect.sh

scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c
to include/linux/ptp_clock_kernel.h in -next so re-apply
the fix there.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-06-18 19:47:02 -07:00
Hayes Wang
b67fda9a82 r8152: store the information of the pipes
Store the information of the pipes to avoid calling usb_rcvctrlpipe(),
usb_sndctrlpipe(), usb_rcvbulkpipe(), usb_sndbulkpipe(), and
usb_rcvintpipe() frequently.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-17 11:58:11 -07:00
Kees Cook
99718abdc0 r8152: Avoid memcpy() over-reading of ETH_SS_STATS
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), memmove(), and memset(), avoid
intentionally reading across neighboring array fields.

The memcpy() is copying the entire structure, not just the first array.
Adjust the source argument so the compiler can do appropriate bounds
checking.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-16 13:02:06 -07:00
Zheng Yongjun
f62c4f3870 net: usb: Fix spelling mistakes
wierdness  ==> weirdness
multicat  ==> multicast
limite  ==> limit
adddress  ==> address
operater  ==> operator
intial  ==> initial
smaler  ==> smaller
Communcation  ==> Communication
funcitons  ==> functions
everytime  ==> every time
Neigbor  ==> Neighbor
performace  ==> performance

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-01 17:05:05 -07:00
Hayes Wang
163d01c56e r8152: support pauseparam of ethtool_ops
Support get_pauseparam and set_pauseparam of ethtool_ops.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-01 15:26:58 -07:00
Hayes Wang
1a44fb38cc r8152: check the informaton of the device
Verify some fields of the USB descriptor to make sure the driver
could be used by the device.

Besides, remove the check of endpoint number in rtl8152_probe().
usb_find_common_endpoints() includes it.

BugLink: https://syzkaller.appspot.com/bug?id=912c9c373656996801b4de61f1e3cb326fe940aa
Reported-by: syzbot+95afd23673f5dd295c57@syzkaller.appspotmail.com
Fixes: c2198943e33b ("r8152: search the configuration of vendor mode")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-24 13:15:29 -07:00
Hayes Wang
9c68011bd7 r8152: remove some bit operations
Remove DELL_TB_RX_AGG_BUG and LENOVO_MACPASSTHRU flags of rtl8152_flags.
They are only set when initializing and wouldn't be change. It is enough
to record them with variables.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-25 18:21:19 -07:00
Hayes Wang
55319eeb5b r8152: redefine REALTEK_USB_DEVICE macro
Redefine REALTEK_USB_DEVICE macro with USB_DEVICE_INTERFACE_CLASS and
USB_DEVICE_AND_INTERFACE_INFO to simply the code.

Although checkpatch.pl shows the following error, it is more readable.

	ERROR: Macros with complex values should be enclosed in parentheses

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23 13:55:42 -07:00