Commit Graph

301 Commits

Author SHA1 Message Date
David Chen
8e29d23e28 r8152: Add support for MAC address pass through on RTL8153-BD
RTL8153-BD is used in Dell DA300 type-C dongle.
It should be added to the whitelist of devices to activate MAC address
pass through.

Per confirming with Realtek all devices containing RTL8153-BD should
activate MAC pass through and there won't use pass through bit on efuse
like in RTL8153-AD.

Signed-off-by: David Chen <david.chen7@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:37:40 -08:00
Mario Limonciello
9c27369f4a r8152: Add support for MAC address pass through on RTL8153-BND
All previous docks and dongles that have supported this feature use
the RTL8153-AD chip.

RTL8153-BND is a new chip that will be used in upcoming Dell type-C docks.
It should be added to the whitelist of devices to activate MAC address
pass through.

Per confirming with Realtek all devices containing RTL8153-BND should
activate MAC pass through and there won't use pass through bit on efuse
like in RTL8153-AD.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-14 14:37:45 -08:00
Florian Fainelli
f2750df154 r8152: Check for supported Wake-on-LAN Modes
The driver does not check for Wake-on-LAN modes specified by an user,
but will conditionally set the device as wake-up enabled or not based on
that, which could be a very confusing user experience.

Fixes: 21ff2e8976 ("r8152: support WOL")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-29 11:31:29 -07:00
Kai-Heng Feng
176eb614b1 r8152: disable RX aggregation on new Dell TB16 dock
There's a new Dell TB16 dock with a different iSerialNumber.

Apply the same fix from commit 0b1655143d ("r8152: disable RX
aggregation on Dell TB16 dock") to this model.

BugLink: https://bugs.launchpad.net/bugs/1785780
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 13:03:29 -07:00
zhong jiang
f741917e24 drivers/net/usb/r8152: remove the unneeded variable "ret" in rtl8152_system_suspend
rtl8152_system_suspend defines the variable "ret", but it is not modified
after initialization. So just remove it.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-11 11:23:25 -07:00
David S. Miller
5cd3da4ba2 Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
Simple overlapping changes in stmmac driver.

Adjust skb_gro_flush_final_remcsum function signature to make GRO list
changes in net-next, as per Stephen Rothwell's example merge
resolution.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-03 10:29:26 +09:00
Gustavo A. R. Silva
9ca78674eb net: usb: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 20:47:16 +09:00
Jiri Slaby
0ee1f47349 r8152: napi hangup fix after disconnect
When unplugging an r8152 adapter while the interface is UP, the NIC
becomes unusable.  usb->disconnect (aka rtl8152_disconnect) deletes
napi. Then, rtl8152_disconnect calls unregister_netdev and that invokes
netdev->ndo_stop (aka rtl8152_close). rtl8152_close tries to
napi_disable, but the napi is already deleted by disconnect above. So
the first while loop in napi_disable never finishes. This results in
complete deadlock of the network layer as there is rtnl_mutex held by
unregister_netdev.

So avoid the call to napi_disable in rtl8152_close when the device is
already gone.

The other calls to usb_kill_urb, cancel_delayed_work_sync,
netif_stop_queue etc. seem to be fine. The urb and netdev is not
destroyed yet.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: linux-usb@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-26 18:00:44 +09:00
Sebastian Andrzej Siewior
ed7aa30e86 net: usb: r8152: use irqsave() in USB's complete callback
The USB completion callback does not disable interrupts while acquiring
the lock. We want to remove the local_irq_disable() invocation from
__usb_hcd_giveback_urb() and therefore it is required for the callback
handler to disable the interrupts while acquiring the lock.
The callback may be invoked either in IRQ or BH context depending on the
USB host controller.
Use the _irqsave() variant of the locking primitives.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-22 13:57:45 +09:00
Eric Dumazet
4c27bf3c5b r8152: fix tx packets accounting
r8152 driver handles TSO packets (limited to ~16KB) quite well,
but pretends each TSO logical packet is a single packet on the wire.

There is also some error since headers are accounted once, but
error rate is small enough that we do not care.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-26 21:01:53 -05:00
Hayes Wang
aece4770fb r8152: set rx mode early when linking on
Set rx mode before calling netif_wake_queue() when linking on to avoid
the device missing the receiving packets.

The transmission may start after calling netif_wake_queue(), and the
packets of resopnse may reach before calling rtl8152_set_rx_mode()
which let the device could receive packets. Then, the packets of
response would be missed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-02 19:19:00 -05:00
Hayes Wang
ea6499e160 r8152: fix wrong checksum status for received IPv4 packets
The device could only check the checksum of TCP and UDP packets. Therefore,
for the IPv4 packets excluding TCP and UDP, the check of checksum is necessary,
even though the IP checksum is correct.

Take ICMP for example, The IP checksum may be correct, but the ICMP checksum
may be wrong.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-02 19:19:00 -05:00
Kai-Heng Feng
0b1655143d r8152: disable RX aggregation on Dell TB16 dock
r8153 on Dell TB15/16 dock corrupts rx packets.

This change is suggested by Realtek. They guess that the XHCI controller
doesn't have enough buffer, and their guesswork is correct, once the RX
aggregation gets disabled, the issue is gone.

ASMedia is currently working on a real sulotion for this issue.

Dell and ODM confirm the bcdDevice and iSerialNumber is unique for TB16.

Note that TB15 has different bcdDevice and iSerialNumber, which are not
unique values. If you still have TB15, please contact Dell to replace it
with TB16.

BugLink: https://bugs.launchpad.net/bugs/1729674
Cc: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 15:38:56 -05:00
Ran Wang
9d11b06638 drivers/net/usb: add device id for TP-LINK UE300 USB 3.0 Ethernet
This product is named 'TP-LINK USB 3.0 Gigabit Ethernet Network
Adapter (Model No.is UE300)'. It uses chip RTL8153 and works with
driver drivers/net/usb/r8152.c

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-24 18:31:14 +09:00
Grant Grundler
90841047a0 r8152: add Linksys USB3GIGV1 id
This linksys dongle by default comes up in cdc_ether mode.
This patch allows r8152 to claim the device:
   Bus 002 Device 002: ID 13b1:0041 Linksys

Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-01 22:39:35 -07:00
Arvind Yadav
9b4355fb03 net: usb: r8152: constify usb_device_id
usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:47:59 -07:00
hayeswang
b65c0c9b65 r8152: correct the definition
Replace VLAN_HLEN and CRC_SIZE with ETH_FCS_LEN.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-21 11:32:57 -04:00
hayeswang
bd88298222 r8152: move calling delay_autosuspend function
Move calling delay_autosuspend() in rtl8152_runtime_suspend(). Calling
delay_autosuspend() as late as possible.

The original flows are
   1. check if the driver/device is busy now.
   2. set wake events.
   3. enter runtime suspend.

If the wake event occurs between (1) and (2), the device may miss it. Besides,
to avoid the runtime resume occurs after runtime suspend immediately, move the
checking to the end of rtl8152_runtime_suspend().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:37:13 -04:00
hayeswang
21cbd0ecad r8152: split rtl8152_resume function
Split rtl8152_resume() into rtl8152_runtime_resume() and
rtl8152_system_resume().

Besides, replace GFP_KERNEL with GFP_NOIO for usb_submit_urb().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16 11:37:12 -04:00
hayeswang
d8fbd27469 r8152: add byte_enable for ocp_read_word function
Add byte_enable for ocp_read_word() to replace reading 4
bytes data with reading the desired 2 bytes data.

This is used to avoid the issue which is described in
commit b4d99def09 ("r8152: remove sram_read"). The
original method always reads 4 bytes data, and it may
have problem when reading the PHY registers.

The new method is supported since RTL8153B, but it
doesn't influence the previous chips. The bits of the
byte_enable for the previous chips are the reserved
bits, and the hw would ignore them.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:56 -04:00
hayeswang
65b82d696b r8152: support RTL8153B
This patch supports two new chips for RTL8153B.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:55 -04:00
hayeswang
c27b32c2a4 r8152: support new chip 8050
The settings of the new chip are the same with RTL8152, except that
its product ID is 0x8050.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 14:31:55 -04:00
David S. Miller
0ddead90b2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflicts were two cases of overlapping changes in
batman-adv and the qed driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 11:59:32 -04:00
Oliver Neukum
eb3c28c155 r8152: give the device version
Getting the device version out of the driver really aids debugging.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-13 12:50:15 -04:00
hayeswang
a3307f9b1b r8152: replace napi_complete with napi_complete_done
Change from using napi_complete to napi_complete_done to allow for the
use of gro_flush_timeout in tuning network processing.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:02 -04:00
hayeswang
745444583a r8152: avoid rx queue more than 1000 packets
Stop queuing rx packets if it is more than 1000.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:02 -04:00
hayeswang
4214cc550b r8152: check if disabling ALDPS is finished
Use PLA 0xe000 bit 8 to check if disabling ALDPS is finished.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:01 -04:00
hayeswang
befb2de181 r8152: move the initialization to reset_resume function
Move tp->rtl_ops.init() from rtl8152_resume() to rtl8152_reset_resume().
The initialization is only necessary for reset_resume().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:01 -04:00
hayeswang
49d10347d4 r8152: move the default coalesce setting for RTL8153
Only RTL8153 could set coalesce, so move the default setting for
rtl8152_probe() to r8153_init().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:01 -04:00
hayeswang
3cb3234eed r8152: adjust U2P3 for RTL8153
Use another way to keep disabling the U2P3 for both RTL_VER_03 and
RTL_VER_04.

Move enabling U2P3 from r8153_init() to r8153_hw_phy_cfg(). The
engineer ask the setting should be done after PHY settings.

Disable U2P3 first in rtl8153_up().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:01 -04:00
hayeswang
02552754a7 r8152: adjust rtl8153_runtime_enable function
Adjust the order of rtl8153_runtime_enable() according to the
suggestion from the engineer.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:00 -04:00
hayeswang
e31f636721 r8152: move the setting of rx aggregation
Move the setting from r8153_first_init() to r8153_init(). It only needs to
be set once.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:00 -04:00
hayeswang
134f98bcf1 r8152: adjust the settings about MAC clock speed down for RTL8153
The MAC clock speed down could be enabled if the U1/U2 is disabled.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:37:00 -04:00
hayeswang
ee4761c16c r8152: adjust lpm settings for RTL8153
Enable lpm after r8153_init() and remove other enable/disable lpm.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:36:59 -04:00
hayeswang
c564b871d5 r8152: add r8153_phy_status function
Use r8153_phy_status() to check phy status of RTL8153.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09 15:36:59 -04:00
yuval.shaia@oracle.com
82c01a84d5 net/{mii, smsc}: Make mii_ethtool_get_link_ksettings and smc_netdev_get_ecmd return void
Make return value void since functions never returns meaningfull value.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-05 11:00:42 -04:00
Matthias Kaehlcke
db646cc0ae r8152: Remove unused function usb_ocp_read()
The function is not used, removing it fixes the following warning when
building with clang:

drivers/net/usb/r8152.c:825:5: error: unused function 'usb_ocp_read'
    [-Werror,-Wunused-function]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18 14:46:07 -04:00
David S. Miller
6f14f443d3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Mostly simple cases of overlapping changes (adding code nearby,
a function whose name changes, for example).

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-06 08:24:51 -07:00
René Rebe
d5b07ccc1b r8152: The Microsoft Surface docks also use R8152 v2
Without this the generic cdc_ether grabs the device,
and does not really work.

Signed-off-by: René Rebe <rene@exactcode.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-01 12:19:31 -07:00
hayeswang
2f25abe6ba r8152: prevent the driver from transmitting packets with carrier off
The linking status may be changed when autosuspend. And, after
autoresume, the driver may try to transmit packets when the device
is carrier off, because the interrupt transfer doesn't update the
linking status, yet. And, if the device is in ALDPS mode, the device
would stop working.

The another similar case is
 1. unplug the cable.
 2. interrupt transfer queue a work_queue for linking change.
 3. device enters the ALDPS mode.
 4. a tx occurs before the work_queue is called.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 12:31:02 -07:00
David S. Miller
16ae1f2236 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/broadcom/genet/bcmmii.c
	drivers/net/hyperv/netvsc.c
	kernel/bpf/hashtab.c

Almost entirely overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-23 16:41:27 -07:00
hayeswang
b20cb60e2b r8152: fix the rx early size of RTL8153
revert commit a59e6d8152 ("r8152: correct the rx early size") and
fix the rx early size as

	(rx buffer size - rx packet size - rx desc size - alignment) / 4

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22 10:50:36 -07:00
hayeswang
210c4f70b4 r8152: set the RMS of RTL8153 according to the mtu
Set the received maximum size (RMS) according to the mtu size. It is
unnecessary to receive a packet which is more than the size we could
transmit. Besides, this could let the rx buffer be used effectively.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22 10:50:36 -07:00
hayeswang
33928eed8d r8152: check hw version first
Check hw version first in probe(). Do nothing if the driver doesn't
support the chip.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21 17:13:03 -07:00
hayeswang
98d068ab52 r8152: fix the list rx_done may be used without initialization
The list rx_done would be initialized when the linking on occurs.
Therefore, if a napi is scheduled without any linking on before,
the following kernel panic would happen.

	BUG: unable to handle kernel NULL pointer dereference at 000000000000008
	IP: [<ffffffffc085efde>] r8152_poll+0xe1e/0x1210 [r8152]
	PGD 0
	Oops: 0002 [#1] SMP

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21 14:37:10 -07:00
hayeswang
ce594e9824 r8152: simply the arguments
Replace &tp->napi with napi and tp->netdev with netdev.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-16 10:13:59 -07:00
Philippe Reynes
06144dcfd3 net: usb: r8152: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

As I don't have the hardware, I'd be very pleased if
someone may test this patch.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-13 15:25:54 -07:00
David S. Miller
4e8f2fc1a5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two trivial overlapping changes conflicts in MPLS and mlx5.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-28 10:33:06 -05:00
hayeswang
7489bdadb7 r8152: check rx after napi is enabled
Schedule the napi after napi_enable() for rx, if it is necessary.

If the rx is completed when napi is disabled, the sheduling of napi
would be lost. Then, no one handles the rx packet until next napi
is scheduled.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 22:47:30 -05:00
hayeswang
248b213ad9 r8152: re-schedule napi for tx
Re-schedule napi after napi_complete() for tx, if it is necessay.

In r8152_poll(), if the tx is completed after tx_bottom() and before
napi_complete(), the scheduling of napi would be lost. Then, no
one handles the next tx until the next napi_schedule() is called.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 22:47:30 -05:00
hayeswang
de9bf29dd6 r8152: avoid start_xmit to schedule napi when napi is disabled
Stop the tx when the napi is disabled to prevent napi_schedule() is
called.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 22:47:30 -05:00
hayeswang
26afec3930 r8152: avoid start_xmit to call napi_schedule during autosuspend
Adjust the setting of the flag of SELECTIVE_SUSPEND to prevent start_xmit()
from calling napi_schedule() directly during runtime suspend.

After calling napi_disable() or clearing the flag of WORK_ENABLE,
scheduling the napi is useless.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 22:47:30 -05:00
hayeswang
a9c54ad2c7 r8152: fix the wrong spelling
Replace rumtime with runtime.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 13:24:34 -05:00
hayeswang
6a0b76c04e r8152: don't execute runtime suspend if the tx is not empty
Runtime suspend shouldn't be executed if the tx queue is not empty,
because the device is not idle.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 13:38:47 -05:00
hayeswang
2c561b2b72 r8152: fix rtl8152_post_reset function
The rtl8152_post_reset() should sumbit rx urb and interrupt transfer,
otherwise the rx wouldn't work and the linking change couldn't be
detected.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-20 11:06:23 -05:00
hayeswang
19c0f40d4f r8152: fix the sw rx checksum is unavailable
Fix the hw rx checksum is always enabled, and the user couldn't switch
it to sw rx checksum.

Note that the RTL_VER_01 only support sw rx checksum only. Besides,
the hw rx checksum for RTL_VER_02 is disabled after
commit b9a321b48a ("r8152: Fix broken RX checksums."). Re-enable it.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-11 16:08:57 -05:00
hayeswang
75dc692eda r8152: fix rx issue for runtime suspend
Pause the rx and make sure the rx fifo is empty when the autosuspend
occurs.

If the rx data comes when the driver is canceling the rx urb, the host
controller would stop getting the data from the device and continue
it after next rx urb is submitted. That is, one continuing data is
split into two different urb buffers. That let the driver take the
data as a rx descriptor, and unexpected behavior happens.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-10 11:46:46 -05:00
hayeswang
8fb2806168 r8152: split rtl8152_suspend function
Split rtl8152_suspend() into rtl8152_system_suspend() and
rtl8152_rumtime_suspend().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-10 11:46:46 -05:00
David S. Miller
bb598c1b8c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of bug fixes in 'net' overlapping other changes in
'net-next-.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-15 10:54:36 -05:00
Guenter Roeck
ca0a75316d r8152: Fix error path in open function
If usb_submit_urb() called from the open function fails, the following
crash may be observed.

r8152 8-1:1.0 eth0: intr_urb submit failed: -19
...
r8152 8-1:1.0 eth0: v1.08.3
Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b6b7b
pgd = ffffffc0e7305000
[6b6b6b6b6b6b6b7b] *pgd=0000000000000000, *pud=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
...
PC is at notifier_chain_register+0x2c/0x58
LR is at blocking_notifier_chain_register+0x54/0x70
...
Call trace:
[<ffffffc0002407f8>] notifier_chain_register+0x2c/0x58
[<ffffffc000240bdc>] blocking_notifier_chain_register+0x54/0x70
[<ffffffc00026991c>] register_pm_notifier+0x24/0x2c
[<ffffffbffc183200>] rtl8152_open+0x3dc/0x3f8 [r8152]
[<ffffffc000808000>] __dev_open+0xac/0x104
[<ffffffc0008082f8>] __dev_change_flags+0xb0/0x148
[<ffffffc0008083c4>] dev_change_flags+0x34/0x70
[<ffffffc000818344>] do_setlink+0x2c8/0x888
[<ffffffc0008199d4>] rtnl_newlink+0x328/0x644
[<ffffffc000819e98>] rtnetlink_rcv_msg+0x1a8/0x1d4
[<ffffffc0008373c8>] netlink_rcv_skb+0x68/0xd0
[<ffffffc000817990>] rtnetlink_rcv+0x2c/0x3c
[<ffffffc000836d1c>] netlink_unicast+0x16c/0x234
[<ffffffc00083720c>] netlink_sendmsg+0x340/0x364
[<ffffffc0007e85d0>] sock_sendmsg+0x48/0x60
[<ffffffc0007e9c30>] SyS_sendto+0xe0/0x120
[<ffffffc0007e9cb0>] SyS_send+0x40/0x4c
[<ffffffc000203e34>] el0_svc_naked+0x24/0x28

Clean up error handling to avoid registering the notifier if the open
function is going to fail.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-13 12:03:20 -05:00
Mark Lord
b9a321b48a r8152: Fix broken RX checksums.
The r8152 driver has been broken since (approx) 3.16.xx
when support was added for hardware RX checksums
on newer chip versions.  Symptoms include random
segfaults and silent data corruption over NFS.

The hardware checksum logig does not work on the VER_02
dongles I have here when used with a slow embedded system CPU.
Google reveals others reporting similar issues on Raspberry Pi.

So, disable hardware RX checksum support for VER_02, and fix
an obvious coding error for IPV6 checksums in the same function.

Because this bug results in silent data corruption,
it is a good candidate for back-porting to -stable >= 3.16.xx.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-30 20:56:13 -04:00
Jarod Wilson
f77f0aee4d net: use core MTU range checking in USB NIC drivers
usbnet:
- Remove stale new_mtu <= 0 check in usbnet.c
- Set min_mtu = 0, max_mtu = 65535 (sub-drivers must set their own
  max_mtu and/or min_mtu as needed)

r8152:
- Set appropriate max_mtu for different variants (1500 or 9194)

lan78xx:
- Set max_mtu = 9000

asix_driver:
- max_mtu = 16384 for ax88178 variant

ax88179:
- max_mtu = 4088

cdc_ncm:
- max_mtu from hardware

cdc-phonet:
- min_mtu = 6, max_mtu = 65541

sierra_net:
- max_mtu = 1500, call usbnet_change_mtu directly
- sierra_net_change_mtu checked for MTU > 1500, then called
  usbnet_change_mtu, but if we set max_mtu to let the network core handle
  the range check, then we can simply call usbnet_change_mtu directly

smsc75xx:
- max_mtu = 9000

CC: netdev@vger.kernel.org
CC: Woojung Huh <woojung.huh@microchip.com>
CC: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
CC: Hayes Wang <hayeswang@realtek.com>
CC: Oliver Neukum <oneukum@suse.com>
CC: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-20 14:51:08 -04:00
hayeswang
d248cafc89 r8152: add new products of Lenovo
Add the following four products of Lenovo and sort the order of the list.

	VID		PID
	0x17ef		0x3062
	0x17ef		0x3069
	0x17ef		0x720c
	0x17ef		0x7214

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-18 14:24:04 -04:00
Jarod Wilson
a52ad514fd net: deprecate eth_change_mtu, remove usage
With centralized MTU checking, there's nothing productive done by
eth_change_mtu that isn't already done in dev_set_mtu, so mark it as
deprecated and remove all usage of it in the kernel. All callers have been
audited for calls to alloc_etherdev* or ether_setup directly, which means
they all have a valid dev->min_mtu and dev->max_mtu. Now eth_change_mtu
prints out a netdev_warn about being deprecated, for the benefit of
out-of-tree drivers that might be utilizing it.

Of note, dvb_net.c actually had dev->mtu = 4096, while using
eth_change_mtu, meaning that if you ever tried changing it's mtu, you
couldn't set it above 1500 anymore. It's now getting dev->max_mtu also set
to 4096 to remedy that.

v2: fix up lantiq_etop, missed breakage due to drive not compiling on x86

CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-13 09:36:57 -04:00
David S. Miller
d6989d4bbe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-23 06:46:57 -04:00
hayeswang
d768c61bc3 r8152: disable ALDPS and EEE before setting PHY
Disable ALDPS and EEE to avoid the possible failure when setting the PHY.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:53:47 -04:00
hayeswang
af0287ec10 r8152: remove r8153_enable_eee
Remove r8153_enable_eee().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:53:47 -04:00
hayeswang
ef39df8eab r8152: move PHY settings to hw_phy_cfg
Move the PHY relative settings together to hw_phy_cfg().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:53:47 -04:00
hayeswang
2dd436daac r8152: move enabling PHY
Move enabling PHY to init(), otherwise some other settings may fail.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:53:47 -04:00
hayeswang
e644953982 r8152: move some functions
Move the following functions forward.

	r8152_mmd_indirect()
	r8152_mmd_read()
	r8152_mmd_write()
	r8152_eee_en()
	r8152b_enable_eee()
	r8153_eee_en()
	r8153_enable_eee()
	r8152b_enable_fc()
	r8153_aldps_en()

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:53:46 -04:00
hayeswang
53700f0c9a r8152: fix the coding style with checkpatch.pl
check the coding style with checkpatch.pl and fix the warnings and errors.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-01 09:55:44 -07:00
Julia Lawall
407a471d4d r8152: constify ethtool_ops structures
Check for ethtool_ops structures that are only stored in the ethtool_ops
field of a net_device structure or passed as the second argument to
netdev_set_default_ethtool_ops.  These contexts are declared const, so
ethtool_ops structures that have these properties can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct ethtool_ops i@p = { ... };

@ok1@
identifier r.i;
struct net_device e;
position p;
@@
e.ethtool_ops = &i@p;

@ok2@
identifier r.i;
expression e;
position p;
@@
netdev_set_default_ethtool_ops(e, &i@p)

@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct ethtool_ops i = { ... };
// </smpl>

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-31 20:45:51 -07:00
David S. Miller
de0ba9a0d8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Just several instances of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-24 00:53:32 -04:00
Grant Grundler
c961e877cf r8152: add MODULE_VERSION
ethtool -i provides a driver version that is hard coded.
Export the same value via "modinfo".

Signed-off-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-15 14:25:30 -07:00
Mario Limonciello
34ee32c9a5 r8152: Add support for setting pass through MAC address on RTL8153-AD
The RTL8153-AD supports a persistent system specific MAC address.
This means a device plugged into two different systems with host side
support will show different (but persistent) MAC addresses.

This information for the system's persistent MAC address is burned in when
the system HW is built and available under \_SB.AMAC in the DSDT at runtime.

This technology is currently implemented in the Dell TB15 and WD15 Type-C
docks.  More information is available here:
http://www.dell.com/support/article/us/en/04/SLN301147

Signed-off-by: Mario Limonciello <mario_limonciello@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-11 19:42:30 -07:00
hayeswang
c23d86ae94 r8152: remove cancel_delayed_work_sync in rtl8152_set_speed
There is no conflict between the work_queue function and
rtl8152_set_speed(), so we don't have to cancel the delayed work in
rtl8152_set_speed().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:06 -04:00
hayeswang
c79262f3f8 r8152: remove a netif_carrier_off in rtl8152_open function
After commit 90186af404 ("r8152: fix lockup when runtime PM is enabled"),
the autoresume wouldn't start the device before rtl8152_open() is finished.
Therefore, we don't have to reset the linking status before and after
autoresume. That is, one of netif_carrier_off() in rtl8152_open() could be
removed.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:05 -04:00
hayeswang
b1648066b4 r8152: remove rtl_phy_reset function
In rtl_hw_phy_work_func_t(), the flag of PHY_RESET is set in
rtl_ops.hw_phy_cfg() and cleared in rtl8152_set_speed(). Therefore,
the rtl_phy_reset() is never run and is unnecessary.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-09 17:48:05 -04:00
hayeswang
92f7d07d68 r8152: remove the setting of LAN_WAKE_EN
The LAN_WAKE_EN is not used to determine if the device could support
WOL. It is used to signal a GPIO pin when a WOL event occurs. The WOL
still works even though it is disabled.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-08 23:47:28 -04:00
David S. Miller
30d0844bdc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/mellanox/mlx5/core/en.h
	drivers/net/ethernet/mellanox/mlx5/core/en_main.c
	drivers/net/usb/r8152.c

All three conflicts were overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-06 10:35:22 -07:00
hayeswang
2609af1936 r8152: fix runtime function for RTL8152
The RTL8152 doesn't have U1U2 and U2P3 features, so use different
runtime functions for RTL812 and RTL8153 by adding autosuspend_en()
to rtl_ops.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 10:22:29 -07:00
hayeswang
f95ae8a0ed r8152: clear LINK_OFF_WAKE_EN after autoresume
LINK_OFF_WAKE_EN should be cleared after autoresume, otherwise after
system suspend, the system would wake up when linking off occurs.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-01 05:56:39 -04:00
David S. Miller
ee58b57100 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, except the packet scheduler
conflicts which deal with the addition of the free list parameter
to qdisc_enqueue().

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-30 05:03:36 -04:00
hayeswang
fae5617877 r8152: modify the check of the flag of PHY_RESET in set_speed function
In set_speed(), BMCR_RESET would be set when the flag of PHY_RESET
is set. Use BMCR_RESET to replace testing the flag of PHY_RESET.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-16 17:08:33 -07:00
hayeswang
a59e6d8152 r8152: correct the rx early size
The rx early size should be

	(agg_buf_sz - packet size) / 8

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 23:39:18 -07:00
hayeswang
93fe9b1838 r8152: reset the bmu
Reset the BMU to clear the rx/tx fifo. This avoids that the unexpected
data remains in the hw.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 23:39:18 -07:00
hayeswang
4e384ac19b r8152: disable MAC clock speed down
Disable MAC clock speed down. It may casue the first control
transfer to contain the wrong data, when the power state change
from U1 to U0.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 23:39:18 -07:00
hayeswang
aa7e26b66a r8152: save the speed
The user may change the speed. Use it to replace the default one.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-14 22:37:48 -07:00
hayeswang
9d21c0d83e r8152: move the setting for the default speed
Move calling set_speed() from open() to rtl_hw_phy_work_func_t().
Then, we would set the default speed only for first initialization
or after resuming.

Besides, the set_speed() could handle the flag of PHY_RESET which
would be set in rtl_ops.hw_phy_cfg().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-14 22:37:48 -07:00
hayeswang
a028a9e003 r8152: move the settings of PHY to a work queue
Move the settings of PHY to a work queue and schedule it after
rtl_ops.init().

There are some reasons for this. First, the settings are only
needed for the first time initialization or after the power
down occurs.

Second, the settings are independent with the others.

Last, the settings may take more time than the others. Leave
they in probe() or open() may delay the following flows.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-14 22:37:48 -07:00
hayeswang
c8d8396370 r8152: replace netdev_alloc_skb_ip_align with napi_alloc_skb
Replace netdev_alloc_skb_ip_align() with napi_alloc_skb() which can save
several CPU cycles by avoiding having to disable and re-enable IRQs.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-09 23:38:19 -07:00
Oliver Neukum
2b84af94a3 rtl8152: correct speed testing
Allow for SS+ USB

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03 15:49:34 -04:00
David S. Miller
9d367eddf3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/bonding/bond_main.c
	drivers/net/ethernet/mellanox/mlxsw/spectrum.h
	drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

The bond_main.c and mellanox switch conflicts were cases of
overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-11 23:55:43 -05:00
hayeswang
cda9fb01dc r8152: adjust ALDPS function
Replace disable_aldps() and enable_aldps() with aldps_en().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-08 21:57:17 -05:00
hayeswang
216a8349d3 r8152: use test_and_clear_bit
Replace test_bit() followed by clear_bit() with test_and_clear_bit().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-08 21:57:17 -05:00
hayeswang
5ee3c60c8d r8152: fix the wake event
When the autosuspend is enabled and occurs before system suspend, we should
wake the device before running system syspend. Then, we could change the wake
event for system suspend. Otherwise, the device would resume the system when
receiving any packet.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-08 21:50:18 -05:00
David S. Miller
9e0efaf6b4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-01-06 22:54:18 -05:00
hayeswang
7ec2541aa7 r8152: add reset_resume function
When the reset_resume() is called, the flag of SELECTIVE_SUSPEND should be
cleared and reinitialize the device, whether the SELECTIVE_SUSPEND is set
or not. If reset_resume() is called, it means the power supply is cut or the
device is reset. That is, the device wouldn't be in runtime suspend state and
the reinitialization is necessary.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-04 22:02:08 -05:00
David S. Miller
b3e0d3d7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/geneve.c

Here we had an overlapping change, where in 'net' the extraneous stats
bump was being removed whilst in 'net-next' the final argument to
udp_tunnel6_xmit_skb() was being changed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17 22:08:28 -05:00
Tom Herbert
a188222b6e net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK
The name NETIF_F_ALL_CSUM is a misnomer. This does not correspond to the
set of features for offloading all checksums. This is a mask of the
checksum offload related features bits. It is incorrect to set both
NETIF_F_HW_CSUM and NETIF_F_IP_CSUM or NETIF_F_IPV6 at the same time for
features of a device.

This patch:
  - Changes instances of NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK (where
    NETIF_F_ALL_CSUM is being used as a mask).
  - Changes bonding, sfc/efx, ipvlan, macvlan, vlan, and team drivers to
    use NEITF_F_HW_CSUM in features list instead of NETIF_F_ALL_CSUM.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15 16:50:08 -05:00