muen/linux.git
3 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Wed, 25 Apr 2018 08:30:54 +0000 (11:30 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for 4.18. Major changes:

ath10k

* enable temperature reads for QCA6174 and QCA9377

* add firmware memory dump support for QCA9984

* continue adding WCN3990 support via SNOC bus

3 years agoqtnfmac: pearl: pcie: fix memory leak in qtnf_fw_work_handler
Gustavo A. R. Silva [Thu, 5 Apr 2018 15:49:49 +0000 (10:49 -0500)]
qtnfmac: pearl: pcie: fix memory leak in qtnf_fw_work_handler

In case memory resources for fw were succesfully allocated, release
them before jumping to fw_load_fail.

Addresses-Coverity-ID: 1466092 ("Resource leak")
Fixes: c3b2f7ca4186 ("qtnfmac: implement asynchronous firmware loading")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agort2x00: rt2800: add antenna diversity for RT5370G
Xose Vazquez Perez [Thu, 5 Apr 2018 12:22:32 +0000 (14:22 +0200)]
rt2x00: rt2800: add antenna diversity for RT5370G

RT5370G has hardware RX antenna diversity like RT5390R.
Based on DPO_RT5572_LinuxSTA_2.6.1.3_20121022.tar.bz2 manufacturer driver:
https://d86o2zu8ugzlg.cloudfront.net/mediatek-craft/drivers/DPO_RT5572_LinuxSTA_2.6.1.3_20121022.tar.bz2

Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: wireless newbie <wnewbie72@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux wireless ml <linux-wireless@vger.kernel.org>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agobrcmsmac: phy_lcn: remove duplicate code
Gustavo A. R. Silva [Thu, 5 Apr 2018 00:09:44 +0000 (19:09 -0500)]
brcmsmac: phy_lcn: remove duplicate code

Remove and refactor some code in order to avoid having identical code
for different branches.

Notice that this piece of code hasn't been modified since 2011.

Addresses-Coverity-ID: 1226756 ("Identical code for different branches")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agobrcmfmac: add support for BCM4366E chipset
Dan Haab [Tue, 3 Apr 2018 08:21:56 +0000 (10:21 +0200)]
brcmfmac: add support for BCM4366E chipset

BCM4366E is a wireless chipset with a BCM43664 ChipCommon. It's
supported by the same firmware as 4366c0.

Signed-off-by: Dan Haab <dan.haab@luxul.com>
[arend: rebase patch and remove unnecessary definition]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomwifiex: pcie: tighten a check in mwifiex_pcie_process_event_ready()
Dan Carpenter [Thu, 5 Apr 2018 11:17:19 +0000 (14:17 +0300)]
mwifiex: pcie: tighten a check in mwifiex_pcie_process_event_ready()

If "evt_len" is 1 then we try to memcpy() negative 3 bytes and it would
cause memory corruption.

Fixes: d930faee141b ("mwifiex: add support for Marvell pcie8766 chipset")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomwifiex: uap: support cfg80211 ignore_broadcast_ssid=2
Xinming Hu [Mon, 2 Apr 2018 12:31:23 +0000 (20:31 +0800)]
mwifiex: uap: support cfg80211 ignore_broadcast_ssid=2

Firmware already support hidden ssid and keep ssid length,
Open the capability in driver.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomwifiex: uap: filter duplicate ERP IE
Xinming Hu [Mon, 2 Apr 2018 12:31:22 +0000 (20:31 +0800)]
mwifiex: uap: filter duplicate ERP IE

Firmware parse and attach ERP IE from bss configuration,
do not set again from tail IE.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: fix TXD_INFO bitmask definition
Lorenzo Bianconi [Mon, 16 Apr 2018 23:05:59 +0000 (01:05 +0200)]
mt76x2: fix TXD_INFO bitmask definition

Despite this issue is not harmful since it is not actually used in
mt76 driver, fix DMA txinfo bitmask definition

Fixes: 7bc04215a66b ('mt76: add driver code for MT76x2e')
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt7601u: run calibration works after finishing scanning
Stanislaw Gruszka [Mon, 16 Apr 2018 11:56:18 +0000 (13:56 +0200)]
mt7601u: run calibration works after finishing scanning

When finishing scanning we switch to operational channel sill with
SCANNING flag. This mean that we never perform calibration works after
scanning. To fix the problem queue calibration works on
.sw_scan_complete() routine.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt7601u: use EWMA to calculate avg_rssi
Stanislaw Gruszka [Mon, 16 Apr 2018 11:56:17 +0000 (13:56 +0200)]
mt7601u: use EWMA to calculate avg_rssi

avr_rssi is not calculated correctly as we do not divide result
by 256 (mt76 sum avg_rssi1 and avg_rssi2 and divide by 512).
However dividing by 256 will make avg_rssi almost the same as
last rssi value - not really an average. So use EWMA to calculate
avg_rssi. I've chosen weight_rcp=4 to convergence quicker on signal
strength changes.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: set default values in TX_ALC_CFG_{1, 2} for tempetaure compensation
Lorenzo Bianconi [Wed, 4 Apr 2018 08:38:32 +0000 (10:38 +0200)]
mt76x2: set default values in TX_ALC_CFG_{1, 2} for tempetaure compensation

Initialize default values for temperature compensation in TX_ALC_CFG_{1,2}
if tssi has been enabled

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: fix tx_alc_enabled check
Lorenzo Bianconi [Wed, 4 Apr 2018 08:23:46 +0000 (10:23 +0200)]
mt76x2: fix tx_alc_enabled check

Fix mt76x2_temp_tx_alc_enabled routine since in order to enable tx_alc
temperature compensation it necessary to take into account BIT(15) of
MT_EE_TX_POWER_EXT_PA_5G eeprom info

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: remove unnecessary MT_TX_ALC_CFG_4 configuration
Lorenzo Bianconi [Tue, 3 Apr 2018 20:30:19 +0000 (22:30 +0200)]
mt76x2: remove unnecessary MT_TX_ALC_CFG_4 configuration

Remove unnecessary MT_TX_ALC_CFG_4 configuration since the register value
will be properly set according to the usage of an external power amplifier

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: check qos ack policy before reordering packets
Felix Fietkau [Tue, 3 Apr 2018 19:52:54 +0000 (21:52 +0200)]
mt76: check qos ack policy before reordering packets

Do not attempt to reorder packets not part of a BA session

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: set RX_FLAG_DUP_VALIDATED for A-MPDU reordered packets
Felix Fietkau [Tue, 3 Apr 2018 19:52:53 +0000 (21:52 +0200)]
mt76: set RX_FLAG_DUP_VALIDATED for A-MPDU reordered packets

Required for fast-rx and allows mac80211 to skip an unnnecessary check.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: fix potential sleep in atomic context
Felix Fietkau [Tue, 3 Apr 2018 19:52:52 +0000 (21:52 +0200)]
mt76: fix potential sleep in atomic context

Use cancel_delayed_work instead of cancel_delayed_work_sync

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: rework tx power handling
Felix Fietkau [Tue, 3 Apr 2018 19:52:51 +0000 (21:52 +0200)]
mt76: rework tx power handling

There were a number of issues in the existing tx power handling code:

1. The EEPROM target power for chain 0 refers to the actual output power
after the channel and bandwidth delta have been added to the initial
channel gain. This means the delta values should not be added/subtracted
for the rate power calculation

2. When power is reduced significantly, the initial channel gain
underflows very quickly, while the per-rate power offsets are high.
This miscalculation causes effective tx power to be increased when it
should actually be lowered.

Fix this by trying to adjust the channel gain to the lowest power from
the rate table. In case of under- or overflow, compensate by adding an
appropriate delta to the rate power values.

This makes power configuration more accurate on a wider range of
configurable values

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: toggle driver station powersave bit before notifying mac80211
Felix Fietkau [Tue, 3 Apr 2018 19:52:50 +0000 (21:52 +0200)]
mt76: toggle driver station powersave bit before notifying mac80211

Avoids race conditions from mac80211 enqueueing tx packets before the
tx-drop bit is cleared

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: add missing VHT maximum A-MPDU length capability
Felix Fietkau [Tue, 3 Apr 2018 19:52:49 +0000 (21:52 +0200)]
mt76: add missing VHT maximum A-MPDU length capability

Signficantly improves throughput with some clients

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76: stop tx queues from the driver callback instead of common code
Felix Fietkau [Tue, 3 Apr 2018 19:52:48 +0000 (21:52 +0200)]
mt76: stop tx queues from the driver callback instead of common code

Allows the driver to control whether to send a BlockAckReq after waking
up. MT76x2 needs this set to true, for MT7603 (to be submitted later)
it needs to be false.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: make mt76x2_mac_reset routine static
Lorenzo Bianconi [Tue, 3 Apr 2018 15:01:43 +0000 (17:01 +0200)]
mt76x2: make mt76x2_mac_reset routine static

Add static qualifier to mt76x2_mac_reset routine and remove the
prototype from mt76x2_mac.h since it is used just in mt76x2_init.c

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt76x2: fix tssi initialization for 5GHz band
Lorenzo Bianconi [Tue, 3 Apr 2018 14:45:31 +0000 (16:45 +0200)]
mt76x2: fix tssi initialization for 5GHz band

Fix mcu initial configuration for tssi calibration on 5GHz band

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agomt7601u: phy: mark expected switch fall-through
Gustavo A. R. Silva [Fri, 30 Mar 2018 21:12:23 +0000 (16:12 -0500)]
mt7601u: phy: mark expected switch fall-through

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>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agortlwifi: btcoex: remove identical statements within if-else branches
Ping-Ke Shih [Mon, 9 Apr 2018 07:51:31 +0000 (15:51 +0800)]
rtlwifi: btcoex: remove identical statements within if-else branches

Since the statements are identical, we can safely remove the statements.
The commit 42e74946f016 ("rtlwifi: btcoexist: Fix if == else warnings in
halbtc8821a1ant.c") had fixed the statements, but the commit c6821613e653
("rtlwifi: btcoex: follow linux coding style") that converted coding style
and upgraded btcoex didn't include the fix.

Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: Fix 'invalid vdd' warning in mmc
Siva Rebbagondla [Wed, 11 Apr 2018 06:43:32 +0000 (12:13 +0530)]
rsi: Fix 'invalid vdd' warning in mmc

While performing cleanup, driver is messing with card->ocr
value by not masking rocr against ocr_avail. Below panic
is observed with some of the SDIO host controllers due to
this. Issue is resolved by reverting incorrect modifications
to vdd.

[  927.423821] mmc1: Invalid vdd 0x1f
[  927.423925] Modules linked in: rsi_sdio(+) cmac bnep arc4 rsi_91x
       mac80211 cfg80211 btrsi rfcomm bluetooth ecdh_generic
[  927.424073] CPU: 0 PID: 1624 Comm: insmod Tainted: G W        4.15.0-1000-caracalla #1
[  927.424075] Hardware name: Dell Inc. Edge Gateway 3003/      , BIOS 01.00.06 01/22/2018
[  927.424082] RIP: 0010:sdhci_set_power_noreg+0xdd/0x190[sdhci]
[  927.424085] RSP: 0018:ffffac3fc064b930 EFLAGS:  00010282
[  927.424107] Call Trace:
[  927.424118]  sdhci_set_power+0x5a/0x60 [sdhci]
[  927.424125]  sdhci_set_ios+0x360/0x3b0 [sdhci]
[  927.424133]  mmc_set_initial_state+0x92/0x120
[  927.424137]  mmc_power_up.part.34+0x33/0x1d0
[  927.424141]  mmc_power_up+0x17/0x20
[  927.424147]  mmc_sdio_runtime_resume+0x2d/0x50
[  927.424151]  mmc_runtime_resume+0x17/0x20
[  927.424156]  __rpm_callback+0xc4/0x200
[  927.424161]  ? idr_alloc_cyclic+0x57/0xd0
[  927.424165]  ? mmc_runtime_suspend+0x20/0x20
[  927.424169]  rpm_callback+0x24/0x80
[  927.424172]  ? mmc_runtime_suspend+0x20/0x20
[  927.424176]  rpm_resume+0x4b3/0x6c0
[  927.424181]  __pm_runtime_resume+0x4e/0x80
[  927.424188]  driver_probe_device+0x41/0x490
[  927.424192]  __driver_attach+0xdf/0xf0
[  927.424196]  ? driver_probe_device+0x490/0x490
[  927.424201]  bus_for_each_dev+0x6c/0xc0
[  927.424205]  driver_attach+0x1e/0x20
[  927.424209]  bus_add_driver+0x1f4/0x270
[  927.424217]  ? rsi_sdio_ack_intr+0x50/0x50 [rsi_sdio]
[  927.424221]  driver_register+0x60/0xe0
[  927.424227]  ? rsi_sdio_ack_intr+0x50/0x50 [rsi_sdio]
[  927.424231]  sdio_register_driver+0x20/0x30
[  927.424237]  rsi_module_init+0x16/0x40 [rsi_sdio]

Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: fix nommu_map_sg overflow kernel panic
Siva Rebbagondla [Wed, 11 Apr 2018 06:43:31 +0000 (12:13 +0530)]
rsi: fix nommu_map_sg overflow kernel panic

Following overflow kernel panic is observed on some platforms while
loading the driver. It is fixed if dynamically allocated memory is
passed to SDIO instead of static one

[  927.513963] nommu_map_sg: overflow 17d54064ba7c+20 of device mask ffffffff
[  927.517712] Modules linked in: rsi_sdio(+) cmac bnep arc4 rsi_91x mac80211 cfg80211
       btrsi rfcomm bluetooth ecdh_generic snd_soc_sst_bytcr_rt5660
[  927.517861] CPU: 0 PID: 1624 Comm: insmod Tainted: G W 4.15.0-1000 #1
[  927.517870] RIP: 0010:sdhci_send_command+0x5f0/0xa90 [sdhci]
[  927.517873] RSP: 0000:ffffac3fc064b6d8 EFLAGS: 00010086
[  927.517895] Call Trace:
[  927.517908]  ? __schedule+0x3cd/0x890
[  927.517915]  ? mod_timer+0x17b/0x3c0
[  927.517922]  sdhci_request+0x7c/0xf0 [sdhci]
[  927.517928]  __mmc_start_request+0x5a/0x170
[  927.517932]  mmc_start_request+0x74/0x90
[  927.517936]  mmc_wait_for_req+0x87/0xe0
[  927.517940]  mmc_io_rw_extended+0x2fd/0x330
[  927.517946]  ? mmc_wait_data_done+0x30/0x30
[  927.517951]  sdio_io_rw_ext_helper+0x160/0x210
[  927.517956]  sdio_writesb+0x1d/0x20
[  927.517966] rsi_sdio_write_register_multiple+0x68/0x110 [rsi_sdio]
[  927.517976]  rsi_hal_device_init+0x357/0x910 [rsi_91x]
[  927.517983]  ? rsi_hal_device_init+0x357/0x910 [rsi_91x]
[  927.517990]  rsi_probe+0x2c6/0x450 [rsi_sdio]
[  927.517995]  sdio_bus_probe+0xfc/0x110
[  927.518000]  driver_probe_device+0x2b3/0x490
[  927.518005]  __driver_attach+0xdf/0xf0
[  927.518008]  ? driver_probe_device+0x490/0x490
[  927.518014]  bus_for_each_dev+0x6c/0xc0
[  927.518018]  driver_attach+0x1e/0x20
[  927.518021]  bus_add_driver+0x1f4/0x270
[  927.518028]  ? rsi_sdio_ack_intr+0x50/0x50 [rsi_sdio]
[  927.518031]  driver_register+0x60/0xe0
[  927.518038]  ? rsi_sdio_ack_intr+0x50/0x50 [rsi_sdio]
[  927.518041]  sdio_register_driver+0x20/0x30
[  927.518047]  rsi_module_init+0x16/0x40 [rsi_sdio]

Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: advertise 5GHz support based on device capability
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:17 +0000 (20:34 +0530)]
rsi: advertise 5GHz support based on device capability

Currently 5GHz gets advertised even for the device which supports
only 2.4Ghz band. This patch fixes the issue

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: enable power save by default for coex
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:16 +0000 (20:34 +0530)]
rsi: enable power save by default for coex

Power save is by default enabled for WLAN and BT coex mode.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: parse TID from data frame correctly
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:15 +0000 (20:34 +0530)]
rsi: parse TID from data frame correctly

Currently TID is extracted by checking at specific offset in data frame.
This approach doesn't work for some of the frames. This patch uses mac80211
API and do it correctly

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: increase max supported aggregation subframes
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:14 +0000 (20:34 +0530)]
rsi: increase max supported aggregation subframes

Maximum number of supported aggregation subframes has been increased
to 8. This is the optimal number for the driver.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: use appropriate interface for power save configuration
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:13 +0000 (20:34 +0530)]
rsi: use appropriate interface for power save configuration

Power save request should be sent on station interface. Virtual
interface which is connected should be preferred. This patch
resolves device not entering power save problem in certain
situations

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: device bootup parameter configuration
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:12 +0000 (20:34 +0530)]
rsi: device bootup parameter configuration

Some device configuration flags need to be enabled while sending 'bootup
params' internal frame to firmware. This patch takes care of it.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: disable fw watchdog timer during reset
Amitkumar Karwar [Tue, 10 Apr 2018 15:04:11 +0000 (20:34 +0530)]
rsi: disable fw watchdog timer during reset

Firmware's watchdog timer should be disabled as a part of reset
sequence. This change fixes a firmware hang issue observed during
stress tests.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: remove unecessary PTR_ALIGN()s
Dan Carpenter [Fri, 6 Apr 2018 08:37:17 +0000 (11:37 +0300)]
rsi: remove unecessary PTR_ALIGN()s

The issue here is that we allocate "data" and then set
"data = PTR_ALIGN(data, 8);" and then we free the aligned pointer
instead of the original pointer.

kmalloc() pointers are already ARCH_SLAB_MINALIGN aligned which is 8 or
more on everything except certain Xtensa variants.  We decided that if
the Xtensa people ever notice a bug here then we'll tell them the bug is
on their side.  ;)

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: roaming enhancements
Prameela Rani Garnepudi [Thu, 29 Mar 2018 14:14:52 +0000 (19:44 +0530)]
rsi: roaming enhancements

To support roaming below changes are done:
* Station notify frame is send to firmware after sending assoc
  request. This will avoid dropping of first EAPOL frame due to
  delay in creation of station control block in firmware.
* Data queues are unblocked after sending station notify in open
  mode, after configuring key in WEP mode, and after receiving
  EAPOL4 confirm in WPA mode.
* Initial EAPOL frames priority is chaged to MGMT, rekey EAPOL
  frames priority changed to VO.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: enable 80MHz clock by default
Prameela Rani Garnepudi [Thu, 29 Mar 2018 14:14:51 +0000 (19:44 +0530)]
rsi: enable 80MHz clock by default

80MHz clock for device should be enabled by default in
TX command frame radio capabilities.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: move descriptor preparation to core
Prameela Rani Garnepudi [Thu, 29 Mar 2018 14:14:50 +0000 (19:44 +0530)]
rsi: move descriptor preparation to core

Descriptors preparation is moved to core instead of HAL to
avoid synchronization issues in sending TX frames

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agorsi: move xtend_desc structure from rsi_main.h to rsi_mgmt.h
Prameela Rani Garnepudi [Thu, 29 Mar 2018 14:14:49 +0000 (19:44 +0530)]
rsi: move xtend_desc structure from rsi_main.h to rsi_mgmt.h

All descriptor structures are in rsi_mgmt.h except this
extended descriptor structure. Hence moving it to rsi_mgmt.h
and also renaming to rsi_xtend_desc.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agocw1200: fix spelling mistake: "Mailformed" -> "Malformed"
Colin Ian King [Thu, 29 Mar 2018 15:38:18 +0000 (16:38 +0100)]
cw1200: fix spelling mistake: "Mailformed" -> "Malformed"

Trivial fix to spelling mistake in wiphy_warn warning message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoqtnfmac: add DFS offload support
Dmitry Lebed [Mon, 26 Mar 2018 13:36:33 +0000 (16:36 +0300)]
qtnfmac: add DFS offload support

DFS offload support implemented:
- DFS_OFFLOAD feature is advertised depending on HW capabilities
- CAC_STARTED event forwarding from HW implemented
- start_radar_detection() callback now returning -ENOTSUPP
  if DFS_OFFLOAD is enabled

Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoMerge tag 'iwlwifi-next-for-kalle-2018-04-20' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Tue, 24 Apr 2018 10:00:03 +0000 (13:00 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2018-04-20' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi patches for 4.18

* implement Traffic Condition Monitor;
* use TCM for scan and BT coex;
* use TCM to detect when the AP doesn't support UAPSD properly;
* some more work for the 22000 family of devices;
* introduce AMSDU rate control offload;
* a couple of clean-ups and bugfixes.

3 years agowcn36xx: pass information elements in scan requests
Daniel Mack [Tue, 17 Apr 2018 13:23:37 +0000 (15:23 +0200)]
wcn36xx: pass information elements in scan requests

When the wifi driver core passes IE elements in the scan request, append
them to the firmware message. The driver currently tells the core that
it is capable of attaching up to WCN36XX_MAX_SCAN_IE_LEN octets, but
doesn't actually pass them to the the hardware.

Note that this patch doesn't fix a bug that was observed. The change is
merely done for the sake of completeness as the hardware supports
appending IEs in scans. Tests show that network scans work fine with
this patch applied.

Some defines were moved around to avoid cyclic include dependencies.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agowcn36xx: send bss_type in scan requests
Daniel Mack [Tue, 17 Apr 2018 13:23:36 +0000 (15:23 +0200)]
wcn36xx: send bss_type in scan requests

Pass the bss_type of the currently configured BSS in the message for the
scan request. Therefore, that setting needs to be kept in struct
wcn36xx_vif.

This seems to be only interesting when scanning for a specific SSID
and doesn't matter for regular wildcard scans.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agowcn36xx: handle scan cancellation when firmware support is missing
Daniel Mack [Tue, 17 Apr 2018 13:23:35 +0000 (15:23 +0200)]
wcn36xx: handle scan cancellation when firmware support is missing

For firmwares that don't have the SCAN_OFFLOAD feature bit set, do
not call into wcn36xx_smd_stop_hw_scan(). Instead, stop the asynchronous
work and call into ieee80211_scan_completed() immediately.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agowcn36xx: cancel pending scan request when interface goes down
Daniel Mack [Tue, 17 Apr 2018 13:23:34 +0000 (15:23 +0200)]
wcn36xx: cancel pending scan request when interface goes down

When the network interface goes down while a scan request is still
pending that can't be stopped due to firmware hickups, wcn->scan_req
remains set, even though the hardware is deinitialized. This results
in -EBUSY for all scan requests after the interface was brought up
again.

Fix this by explicitly completing pending scan requests in
wcn36xx_stop().

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agowcn36xx: abort scan request when 'dequeued' indicator is sent
Daniel Mack [Tue, 17 Apr 2018 13:23:33 +0000 (15:23 +0200)]
wcn36xx: abort scan request when 'dequeued' indicator is sent

When the firmware sends a WCN36XX_HAL_SCAN_IND_DEQUEUED indication,
the request is apparently no longer valid. Attempts to stop the hardware
scan request subsequently will lead to the following error message, and
the hardware is no longer able to communicate with any AP:

[   57.917186] wcn36xx: ERROR hal_stop_scan_offload response failed err=5

Interpreting this indicator message as scan abortion fixes this.

While at it, add a newline to a debug print.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: enable sta idle power save
Govind Singh [Tue, 17 Apr 2018 12:07:01 +0000 (17:37 +0530)]
ath10k: enable sta idle power save

Enable sta power save in fw for the targets that
supports idle power save. The idle ps enable command
will be ignored by the firmware which does not support
this feature.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: enable SRRI/DRRI support on ddr for WCN3990
Govind Singh [Tue, 17 Apr 2018 12:07:00 +0000 (17:37 +0530)]
ath10k: enable SRRI/DRRI support on ddr for WCN3990

SRRI/DRRI are not mapped in the HW Shadow block and can lead
to un-clocked access if common subsystem in the target is
powered down due to idle mode.

To mitigate this problem SRRI/DRRI can be read from
DDR instead of doing an actual hardware read.
Host allocates non cached memory on ddr and configures
the physical address of this memory to the CE hardware.
The hardware updates the RRI on this particular location.
Read SRRI/DRRI from DDR location instead of
direct target read.

Enable retention restore on ddr using hw params to enable
in specific targets.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: add support for shadow register for WNC3990
Rakesh Pillai [Tue, 17 Apr 2018 12:06:59 +0000 (17:36 +0530)]
ath10k: add support for shadow register for WNC3990

WCN3990 needs shadow register write operation support
for copy engine for regular operation in powersave mode.
Add support for copy engine shadow register write in
datapath tx for WCN3990

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: add hw params for shadow register support
Rakesh Pillai [Tue, 17 Apr 2018 12:06:58 +0000 (17:36 +0530)]
ath10k: add hw params for shadow register support

wcn3990 supports shadow register for ce write.

Add a hw param for shadow register support.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: enable hw checksum for wcn3990
Rakesh Pillai [Tue, 17 Apr 2018 09:24:26 +0000 (14:54 +0530)]
ath10k: enable hw checksum for wcn3990

By default ath10k driver enables the support for HW_CHECKSUM
(NETIF_F_HW_CSUM). Since the TCP/UDP checksum calculation is not enabled
in the wcn3990 firmware the checksum is incorrect in the TCP/UDP packets
and all patckets are dropped. But due note that wcn3990 support in
ath10k is still incomplete so this isn't a critical fix (yet).

Enable hw checksum calculations in wcn3990 hardware by
setting the proper flags in msdu descriptor tso flags.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agowcn36xx: pass correct BSS index when deleting BSS keys
Daniel Mack [Thu, 19 Apr 2018 16:40:11 +0000 (19:40 +0300)]
wcn36xx: pass correct BSS index when deleting BSS keys

The firmware message to delete BSS keys expects a BSS index to be passed.
This field is currently hard-coded to 0. Fix this by passing in the index
we received from the firmware when the BSS was configured.

The encryption type in that message also needs to be set to what was used
when the key was set, so the assignment of vif_priv->encrypt_type is now
done after the firmware command was sent. This reportedly fixes the
following error in AP mode:

  wcn36xx: ERROR hal_remove_bsskey response failed err=6

Also, AFAIU, when a BSS is deleted, the firmware apparently drops all the
keys associated with it. Trying to remove the key explicitly afterwards
will hence lead to the following message:

  wcn36xx: ERROR hal_remove_bsskey response failed err=16

This is now suppressed with an extra check for the BSS index validity.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: convert wow pattern from 802.3 to 802.11
Wen Gong [Thu, 19 Apr 2018 16:40:07 +0000 (19:40 +0300)]
ath10k: convert wow pattern from 802.3 to 802.11

When trying to set wow wakeup patterns it fails with this command:

iw phyxx wowlan enable patterns offset xx+ IP address xx.xx.xx.xx

The reason is that the wow pattern from upper layer is in 802.3 format
for this case, it need to convert it to 802.11 format. The input
offset parameter is used for 802.3, but the actual offset firmware
need depends on rx_decap_mode, so that it needs to be recalculated.
Pattern of 802.3 packet is not same with 802.11 packet. If the
rx_decap_mode is ATH10K_HW_TXRX_NATIVE_WIFI, then firmware will
receive data packet with 802.11 format from hardware.

Tested with QCA6174 hw3.0 with firmware
WLAN.RM.4.4.1-00099-QCARMSWPZ-1, but this will also affect QCA9377.
This has always failed, so it's not a regression with new firmware
releases.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: support MAC address randomization in scan
Carl Huang [Thu, 19 Apr 2018 16:39:40 +0000 (19:39 +0300)]
ath10k: support MAC address randomization in scan

The ath10k reports the random_mac_addr capability to upper layer
based on the service bit firmware reported. Driver sets the
spoofed flag in scan_ctrl_flag to firmware if upper layer has
enabled this feature in scan request.

Test with QCA6174 hw3.0 and firmware-6.bin_WLAN.RM.4.4.1-00102-QCARMSWP-1,
but QCA9377 is also affected.

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agoath10k: add WMI_SERVICE_AVAILABLE_EVENT support
Carl Huang [Thu, 19 Apr 2018 16:39:38 +0000 (19:39 +0300)]
ath10k: add WMI_SERVICE_AVAILABLE_EVENT support

Add WMI_SERVICE_AVAILABLE_EVENT to extend WMI_SERVICE_READY_EVENT,
the 128bit service map in WMI_SERVICE_READY_EVENT is not enough
for firmware to notice new WLAN service to host driver. Hereby,
for thoese new WLAN service, firmware will notice host driver by
WMI_SERVICE_AVAILABLE_EVENT.

Signed-off-by: Alan Liu <alanliu@codeaurora.org>
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
3 years agonet: fib_rules: fix l3mdev netlink attr processing
Roopa Prabhu [Tue, 24 Apr 2018 03:08:41 +0000 (20:08 -0700)]
net: fib_rules: fix l3mdev netlink attr processing

Fixes: b16fb418b1bf ("net: fib_rules: add extack support")
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: net: update .gitignore with missing test
Anders Roxell [Mon, 23 Apr 2018 14:00:50 +0000 (16:00 +0200)]
selftests: net: update .gitignore with missing test

Fixes: 192dc405f308 ("selftests: net: add tcp_mmap program")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodca: make function dca_common_get_tag static
Colin Ian King [Mon, 23 Apr 2018 12:49:38 +0000 (13:49 +0100)]
dca: make function dca_common_get_tag static

Function dca_common_get_tag is local to the source and does not need to be
in global scope, so make it static.

Cleans up sparse warning:
drivers/dca/dca-core.c:273:4: warning: symbol 'dca_common_get_tag' was
not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ipv6-couple-of-fixes-for-rcu-change-to-from'
David S. Miller [Mon, 23 Apr 2018 20:12:55 +0000 (16:12 -0400)]
Merge branch 'ipv6-couple-of-fixes-for-rcu-change-to-from'

David Ahern says:

====================
net/ipv6: couple of fixes for rcu change to from

So many details... I am thankful for all the robots running the
permutations and tools.

Two bug fixes from the rcu change to rt->from:
1. missing rcu lock in ip6_negative_advice
2. rcu dereferences in 2 sites
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Fix missing rcu dereferences on from
David Ahern [Mon, 23 Apr 2018 18:32:07 +0000 (11:32 -0700)]
net/ipv6: Fix missing rcu dereferences on from

kbuild test robot reported 2 uses of rt->from not properly accessed
using rcu_dereference:
1. add rcu_dereference_protected to rt6_remove_exception_rt and make
   sure it is always called with rcu lock held.

2. change rt6_do_redirect to take a reference on 'from' when accessed
   the first time so it can be used the sceond time outside of the lock

Fixes: a68886a69180 ("net/ipv6: Make from in rt6_info rcu protected")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: add rcu locking to ip6_negative_advice
David Ahern [Mon, 23 Apr 2018 18:32:06 +0000 (11:32 -0700)]
net/ipv6: add rcu locking to ip6_negative_advice

syzbot reported a suspicious rcu_dereference_check:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x1b9/0x294 lib/dump_stack.c:113
  lockdep_rcu_suspicious+0x14a/0x153 kernel/locking/lockdep.c:4592
  rt6_check_expired+0x38b/0x3e0 net/ipv6/route.c:410
  ip6_negative_advice+0x67/0xc0 net/ipv6/route.c:2204
  dst_negative_advice include/net/sock.h:1786 [inline]
  sock_setsockopt+0x138f/0x1fe0 net/core/sock.c:1051
  __sys_setsockopt+0x2df/0x390 net/socket.c:1899
  SYSC_setsockopt net/socket.c:1914 [inline]
  SyS_setsockopt+0x34/0x50 net/socket.c:1911

Add rcu locking around call to rt6_check_expired in
ip6_negative_advice.

Fixes: a68886a69180 ("net/ipv6: Make from in rt6_info rcu protected")
Reported-by: syzbot+2422c9e35796659d2273@syzkaller.appspotmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'qed-debug-data'
David S. Miller [Mon, 23 Apr 2018 16:05:58 +0000 (12:05 -0400)]
Merge branch 'qed-debug-data'

Denis Bolotin says:

====================
Add configuration information to register dump and debug data

The purpose of this patchset is to add configuration information to the
debug data collection, which already contains register dump.
The first patch (removing the ptt) is essential because it prevents the
unnecessary ptt acquirement when calling mcp APIs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoqed: Add configuration information to register dump and debug data
Denis Bolotin [Mon, 23 Apr 2018 11:56:05 +0000 (14:56 +0300)]
qed: Add configuration information to register dump and debug data

Configuration information is added to the debug data collection, in
addition to register dump.
Added qed_dbg_nvm_image() that receives an image type, allocates a
buffer and reads the image. The images are saved in the buffers and the
dump size is updated.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoqed: Delete unused parameter p_ptt from mcp APIs
Denis Bolotin [Mon, 23 Apr 2018 11:56:04 +0000 (14:56 +0300)]
qed: Delete unused parameter p_ptt from mcp APIs

Since nvm images attributes are cached during driver load, acquiring ptt
is not needed when calling qed_mcp_get_nvm_image().

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: Implement logic to automatically select HW Interface
Jose Abreu [Mon, 23 Apr 2018 08:05:15 +0000 (09:05 +0100)]
net: stmmac: Implement logic to automatically select HW Interface

Move all the core version detection to a common place ("hwif.c") and
implement a table which can be used to lookup the correct callbacks for
each IP version.

This simplifies the initialization flow of each IP version and eases
future implementation of new IP versions.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agor8169: don't use netif_info et al before net_device has been registered
Heiner Kallweit [Sun, 22 Apr 2018 15:15:15 +0000 (17:15 +0200)]
r8169: don't use netif_info et al before net_device has been registered

There's no benefit in using netif_info et al before the net_device has
been registered. We get messages like
r8169 0000:03:00.0 (unnamed net_device) (uninitialized): [message]
Therefore use dev_info/dev_err instead.

As a side effect we don't need parameter dev for function
rtl8169_get_mac_version() any longer.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: init sk_cookie for inet socket
Yafang Shao [Sun, 22 Apr 2018 13:50:04 +0000 (21:50 +0800)]
net: init sk_cookie for inet socket

With sk_cookie we can identify a socket, that is very helpful for
traceing and statistic, i.e. tcp tracepiont and ebpf.
So we'd better init it by default for inet socket.
When using it, we just need call atomic64_read(&sk->sk_cookie).

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'fib-rules-extack-support'
David S. Miller [Mon, 23 Apr 2018 14:21:25 +0000 (10:21 -0400)]
Merge branch 'fib-rules-extack-support'

Roopa Prabhu says:

====================
fib rules extack support

First patch refactors code to move fib rule netlink handling
into a common function. This became obvious when adding
duplicate extack msgs in add and del paths. Second patch
adds extack msgs.

v2 - Dropped the ip route get support and selftests from
     the series to look at the input path some more (as pointed
     out by ido). Will come back to that next week when i have
     some time. resending just the extack part for now.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: fib_rules: add extack support
Roopa Prabhu [Sat, 21 Apr 2018 16:41:31 +0000 (09:41 -0700)]
net: fib_rules: add extack support

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agofib_rules: move common handling of newrule delrule msgs into fib_nl2rule
Roopa Prabhu [Sat, 21 Apr 2018 16:41:30 +0000 (09:41 -0700)]
fib_rules: move common handling of newrule delrule msgs into fib_nl2rule

This reduces code duplication in the fib rule add and del paths.
Get rid of validate_rulemsg. This became obvious when adding duplicate
extack support in fib newrule/delrule error paths.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agotc-testing: updated ife test cases
Roman Mashak [Sat, 21 Apr 2018 03:56:51 +0000 (23:56 -0400)]
tc-testing: updated ife test cases

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: introduce a new tracepoint for tcp_rcv_space_adjust
Yafang Shao [Fri, 20 Apr 2018 15:18:26 +0000 (23:18 +0800)]
net: introduce a new tracepoint for tcp_rcv_space_adjust

tcp_rcv_space_adjust is called every time data is copied to user space,
introducing a tcp tracepoint for which could show us when the packet is
copied to user.

When a tcp packet arrives, tcp_rcv_established() will be called and with
the existed tracepoint tcp_probe we could get the time when this packet
arrives.
Then this packet will be copied to user, and tcp_rcv_space_adjust will
be called and with this new introduced tracepoint we could get the time
when this packet is copied to user.
With these two tracepoints, we could figure out whether the user program
processes this packet immediately or there's latency.

Hence in the printk message, sk_cookie is printed as a key to relate
tcp_rcv_space_adjust with tcp_probe.

Maybe we could export sockfd in this new tracepoint as well, then we
could relate this new tracepoint with epoll/read/recv* tracepoints, and
finally that could show us the whole lifespan of this packet. But we
could also implement that with pid as these functions are executed in
process context.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agohv_netvsc: select needed ucs2_string routine
Stephen Hemminger [Fri, 20 Apr 2018 15:48:47 +0000 (08:48 -0700)]
hv_netvsc: select needed ucs2_string routine

The conversion of rndis friendly name to utf8 uses a standard
kernel routine which is optional in config. Therefore build
would fail for some configurations. Resolve by selecting needed
library.

Fixes: 0fe554a46a0f ("hv_netvsc: propogate Hyper-V friendly name into interface alias")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Sat, 21 Apr 2018 20:31:52 +0000 (16:31 -0400)]
Merge git://git./linux/kernel/git/davem/net

Conflicts were simple overlapping changes in microchip
driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ipv6-Another-followup-to-the-fib6_info-change'
David S. Miller [Sat, 21 Apr 2018 20:06:14 +0000 (16:06 -0400)]
Merge branch 'ipv6-Another-followup-to-the-fib6_info-change'

David Ahern says:

====================
net/ipv6: Another followup to the fib6_info change

Last one - for this week.

Patches 1, 2 and 7 are more cleanup patches - removing dead code,
moving code from a header to near its single caller, and updating
function name.

Patches 3-5 do some refactoring leading up to patch 6 which fixes
a NULL dereference. I have only managed to trigger a panic once, so
I can not definitively confirm it addresses the problem but it seems
pretty clear that it is a race on removing a 'from' reference on
an rt6_info and another path using that 'from' value to do
cookie checking.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Remove unncessary check on f6i in fib6_check
David Ahern [Fri, 20 Apr 2018 22:38:03 +0000 (15:38 -0700)]
net/ipv6: Remove unncessary check on f6i in fib6_check

Dan reported an imbalance in fib6_check on use of f6i and checking
whether it is null. Since fib6_check is only called if f6i is non-null,
remove the unnecessary check.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Make from in rt6_info rcu protected
David Ahern [Fri, 20 Apr 2018 22:38:02 +0000 (15:38 -0700)]
net/ipv6: Make from in rt6_info rcu protected

When a dst entry is created from a fib entry, the 'from' in rt6_info
is set to the fib entry. The 'from' reference is used most notably for
cookie checking - making sure stale dst entries are updated if the
fib entry is changed.

When a fib entry is deleted, the pcpu routes on it are walked releasing
the fib6_info reference. This is needed for the fib6_info cleanup to
happen and to make sure all device references are released in a timely
manner.

There is a race window when a FIB entry is deleted and the 'from' on the
pcpu route is dropped and the pcpu route hits a cookie check. Handle
this race using rcu on from.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Move release of fib6_info from pcpu routes to helper
David Ahern [Fri, 20 Apr 2018 22:38:01 +0000 (15:38 -0700)]
net/ipv6: Move release of fib6_info from pcpu routes to helper

Code move only; no functional change intended.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Move rcu locking to callers of fib6_get_cookie_safe
David Ahern [Fri, 20 Apr 2018 22:38:00 +0000 (15:38 -0700)]
net/ipv6: Move rcu locking to callers of fib6_get_cookie_safe

A later patch protects 'from' in rt6_info and this simplifies the
locking needed by it.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Move rcu_read_lock to callers of ip6_rt_cache_alloc
David Ahern [Fri, 20 Apr 2018 22:37:59 +0000 (15:37 -0700)]
net/ipv6: Move rcu_read_lock to callers of ip6_rt_cache_alloc

A later patch protects 'from' in rt6_info and this simplifies the
locking needed by it.

With the move, the fib6_info_hold for the uncached_rt is no longer
needed since the rcu_lock is still held.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Rename rt6_get_cookie_safe
David Ahern [Fri, 20 Apr 2018 22:37:58 +0000 (15:37 -0700)]
net/ipv6: Rename rt6_get_cookie_safe

rt6_get_cookie_safe takes a fib6_info and checks the sernum of
the node. Update the name to reflect its purpose.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/ipv6: Clean up rt expires helpers
David Ahern [Fri, 20 Apr 2018 22:37:57 +0000 (15:37 -0700)]
net/ipv6: Clean up rt expires helpers

rt6_clean_expires and rt6_set_expires are no longer used. Removed them.
rt6_update_expires has 1 caller in route.c, so move it from the header.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
David S. Miller [Sat, 21 Apr 2018 19:56:15 +0000 (15:56 -0400)]
Merge git://git./linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2018-04-21

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Initial work on BPF Type Format (BTF) is added, which is a meta
   data format which describes the data types of BPF programs / maps.
   BTF has its roots from CTF (Compact C-Type format) with a number
   of changes to it. First use case is to provide a generic pretty
   print capability for BPF maps inspection, later work will also
   add BTF to bpftool. pahole support to convert dwarf to BTF will
   be upstreamed as well (https://github.com/iamkafai/pahole/tree/btf),
   from Martin.

2) Add a new xdp_bpf_adjust_tail() BPF helper for XDP that allows
   for changing the data_end pointer. Only shrinking is currently
   supported which helps for crafting ICMP control messages. Minor
   changes in drivers have been added where needed so they recalc
   the packet's length also when data_end was adjusted, from Nikita.

3) Improve bpftool to make it easier to feed hex bytes via cmdline
   for map operations, from Quentin.

4) Add support for various missing BPF prog types and attach types
   that have been added to kernel recently but neither to bpftool
   nor libbpf yet. Doc and bash completion updates have been added
   as well for bpftool, from Andrey.

5) Proper fix for avoiding to leak info stored in frame data on page
   reuse for the two bpf_xdp_adjust_{head,meta} helpers by disallowing
   to move the pointers into struct xdp_frame area, from Jesper.

6) Follow-up compile fix from BTF in order to include stdbool.h in
   libbpf, from Bj√∂rn.

7) Few fixes in BPF sample code, that is, a typo on the netdevice
   in a comment and fixup proper dump of XDP action code in the
   tracepoint exception, from Wang and Jesper.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
Linus Torvalds [Fri, 20 Apr 2018 17:56:32 +0000 (10:56 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/evalenti/linux-soc-thermal

Pull thermal fixes from Eduardo Valentin:
 "A couple of fixes for the thermal subsystem"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  dt-bindings: thermal: Remove "cooling-{min|max}-level" properties
  dt-bindings: thermal: remove no longer needed samsung thermal properties

3 years agoMerge tag 'mmc-v4.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 20 Apr 2018 17:41:31 +0000 (10:41 -0700)]
Merge tag 'mmc-v4.17-3' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "A couple of MMC host fixes:

   - sdhci-pci: Fixup tuning for AMD for eMMC HS200 mode

   - renesas_sdhi_internal_dmac: Avoid data corruption by limiting
     DMA RX"

* tag 'mmc-v4.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: renesas_sdhi_internal_dmac: limit DMA RX for old SoCs
  mmc: sdhci-pci: Only do AMD tuning for HS200

3 years agoMerge tag 'md/4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Linus Torvalds [Fri, 20 Apr 2018 17:39:44 +0000 (10:39 -0700)]
Merge tag 'md/4.17-rc1' of git://git./linux/kernel/git/shli/md

Pull MD fixes from Shaohua Li:
 "Three small fixes for MD:

   - md-cluster fix for faulty device from Guoqing

   - writehint fix for writebehind IO for raid1 from Mariusz

   - a live lock fix for interrupted recovery from Yufen"

* tag 'md/4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  raid1: copy write hint from master bio to behind bio
  md/raid1: exit sync request if MD_RECOVERY_INTR is set
  md-cluster: don't update recovery_offset for faulty device

3 years agovfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion
David Howells [Fri, 20 Apr 2018 12:35:02 +0000 (13:35 +0100)]
vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion

In do_mount() when the MS_* flags are being converted to MNT_* flags,
MS_RDONLY got accidentally convered to SB_RDONLY.

Undo this change.

Fixes: e462ec50cb5f ("VFS: Differentiate mount flags (MS_*) from internal superblock flags")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoafs: Fix server record deletion
David Howells [Wed, 18 Apr 2018 08:38:34 +0000 (09:38 +0100)]
afs: Fix server record deletion

AFS server records get removed from the net->fs_servers tree when
they're deleted, but not from the net->fs_addresses{4,6} lists, which
can lead to an oops in afs_find_server() when a server record has been
removed, for instance during rmmod.

Fix this by deleting the record from the by-address lists before posting
it for RCU destruction.

The reason this hasn't been noticed before is that the fileserver keeps
probing the local cache manager, thereby keeping the service record
alive, so the oops would only happen when a fileserver eventually gets
bored and stops pinging or if the module gets rmmod'd and a call comes
in from the fileserver during the window between the server records
being destroyed and the socket being closed.

The oops looks something like:

  BUG: unable to handle kernel NULL pointer dereference at 000000000000001c
  ...
  Workqueue: kafsd afs_process_async_call [kafs]
  RIP: 0010:afs_find_server+0x271/0x36f [kafs]
  ...
  Call Trace:
   afs_deliver_cb_init_call_back_state3+0x1f2/0x21f [kafs]
   afs_deliver_to_call+0x1ee/0x5e8 [kafs]
   afs_process_async_call+0x5b/0xd0 [kafs]
   process_one_work+0x2c2/0x504
   worker_thread+0x1d4/0x2ac
   kthread+0x11f/0x127
   ret_from_fork+0x24/0x30

Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 20 Apr 2018 16:34:39 +0000 (09:34 -0700)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Unbalanced refcounting in TIPC, from Jon Maloy.

 2) Only allow TCP_MD5SIG to be set on sockets in close or listen state.
    Once the connection is established it makes no sense to change this.
    From Eric Dumazet.

 3) Missing attribute validation in neigh_dump_table(), also from Eric
    Dumazet.

 4) Fix address comparisons in SCTP, from Xin Long.

 5) Neigh proxy table clearing can deadlock, from Wolfgang Bumiller.

 6) Fix tunnel refcounting in l2tp, from Guillaume Nault.

 7) Fix double list insert in team driver, from Paolo Abeni.

 8) af_vsock.ko module was accidently made unremovable, from Stefan
    Hajnoczi.

 9) Fix reference to freed llc_sap object in llc stack, from Cong Wang.

10) Don't assume netdevice struct is DMA'able memory in virtio_net
    driver, from Michael S. Tsirkin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
  net/smc: fix shutdown in state SMC_LISTEN
  bnxt_en: Fix memory fault in bnxt_ethtool_init()
  virtio_net: sparse annotation fix
  virtio_net: fix adding vids on big-endian
  virtio_net: split out ctrl buffer
  net: hns: Avoid action name truncation
  docs: ip-sysctl.txt: fix name of some ipv6 variables
  vmxnet3: fix incorrect dereference when rxvlan is disabled
  llc: hold llc_sap before release_sock()
  MAINTAINERS: Direct networking documentation changes to netdev
  atm: iphase: fix spelling mistake: "Tansmit" -> "Transmit"
  net: qmi_wwan: add Wistron Neweb D19Q1
  net: caif: fix spelling mistake "UKNOWN" -> "UNKNOWN"
  net: stmmac: Disable ACS Feature for GMAC >= 4
  net: mvpp2: Fix DMA address mask size
  net: change the comment of dev_mc_init
  net: qualcomm: rmnet: Fix warning seen with fill_info
  tun: fix vlan packet truncation
  tipc: fix infinite loop when dumping link monitor summary
  tipc: fix use-after-free in tipc_nametbl_stop
  ...

3 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Fri, 20 Apr 2018 16:15:14 +0000 (09:15 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "Assorted fixes.

  Some of that is only a matter with fault injection (broken handling of
  small allocation failure in various mount-related places), but the
  last one is a root-triggerable stack overflow, and combined with
  userns it gets really nasty ;-/"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Don't leak MNT_INTERNAL away from internal mounts
  mm,vmscan: Allow preallocating memory for register_shrinker().
  rpc_pipefs: fix double-dput()
  orangefs_kill_sb(): deal with allocation failures
  jffs2_kill_sb(): deal with failed allocations
  hypfs_kill_super(): deal with failed allocations

3 years agoMerge tag 'ecryptfs-4.17-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 20 Apr 2018 16:08:37 +0000 (09:08 -0700)]
Merge tag 'ecryptfs-4.17-rc2-fixes' of git://git./linux/kernel/git/tyhicks/ecryptfs

Pull eCryptfs fixes from Tyler Hicks:
 "Minor cleanups and a bug fix to completely ignore unencrypted
  filenames in the lower filesystem when filename encryption is enabled
  at the eCryptfs layer"

* tag 'ecryptfs-4.17-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: don't pass up plaintext names when using filename encryption
  ecryptfs: fix spelling mistake: "cadidate" -> "candidate"
  ecryptfs: lookup: Don't check if mount_crypt_stat is NULL

3 years agoMerge tag 'for_v4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Fri, 20 Apr 2018 16:01:26 +0000 (09:01 -0700)]
Merge tag 'for_v4.17-rc2' of git://git./linux/kernel/git/jack/linux-fs

 - isofs memory leak fix

 - two fsnotify fixes of event mask handling

 - udf fix of UTF-16 handling

 - couple other smaller cleanups

* tag 'for_v4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fix leak of UTF-16 surrogates into encoded strings
  fs: ext2: Adding new return type vm_fault_t
  isofs: fix potential memory leak in mount option parsing
  MAINTAINERS: add an entry for FSNOTIFY infrastructure
  fsnotify: fix typo in a comment about mark->g_list
  fsnotify: fix ignore mask logic in send_to_group()
  isofs compress: Remove VLA usage
  fs: quota: Replace GFP_ATOMIC with GFP_KERNEL in dquot_init
  fanotify: fix logic of events on child

3 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 20 Apr 2018 15:55:30 +0000 (08:55 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:

 - suspend/resume handling fix for Raydium I2C-connected touchscreen
   from Aaron Ma

 - protocol fixup for certain BT-connected Wacoms from Aaron Armstrong
   Skomra

 - battery level reporting fix on BT-connected mice from Dmitry Torokhov

 - hidraw race condition fix from Rodrigo Rivas Costa

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: i2c-hid: fix inverted return value from i2c_hid_command()
  HID: i2c-hid: Fix resume issue on Raydium touchscreen device
  HID: wacom: bluetooth: send exit report for recent Bluetooth devices
  HID: hidraw: Fix crash on HIDIOCGFEATURE with a destroyed device
  HID: input: fix battery level reporting on BT mice

3 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livep...
Linus Torvalds [Fri, 20 Apr 2018 15:51:55 +0000 (08:51 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/livepatching

Pull livepatching fix from Jiri Kosina:
 "Shadow variable API list_head initialization fix from Petr Mladek"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: Allow to call a custom callback when freeing shadow variables
  livepatch: Initialize shadow variables safely by a custom callback

3 years agotun: do not compute the rxhash, if not needed
Paolo Abeni [Fri, 20 Apr 2018 11:18:16 +0000 (13:18 +0200)]
tun: do not compute the rxhash, if not needed

Currently, the tun driver, in absence of an eBPF steering program,
always compute the rxhash in its rx path, even when such value
is later unused due to additional checks (

This changeset moves the all the related checks just before the
__skb_get_hash_symmetric(), so that the latter is no more computed
when unneeded.

Also replace an unneeded RCU section with rcu_access_pointer().

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agolan78xx: Add support to dump lan78xx registers
Raghuram Chary J [Fri, 20 Apr 2018 06:13:50 +0000 (11:43 +0530)]
lan78xx: Add support to dump lan78xx registers

In order to dump lan78xx family registers using ethtool, add
support at lan78xx driver level.

Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'lan78xx-Read-configuration-from-Device-Tree'
David S. Miller [Fri, 20 Apr 2018 15:39:10 +0000 (11:39 -0400)]
Merge branch 'lan78xx-Read-configuration-from-Device-Tree'

Phil Elwell says:

====================
lan78xx: Read configuration from Device Tree

The Microchip LAN78XX family of devices are Ethernet controllers with
a USB interface. Despite being discoverable devices it can be useful to
be able to configure them from Device Tree, particularly in low-cost
applications without an EEPROM or programmed OTP.

This patch set adds support for reading the MAC address and LED modes from
Device Tree.

v4:
- Rename nodes in bindings doc.

v3:
- Move LED setting into PHY driver.

v2:
- Use eth_platform_get_mac_address.
- Support up to 4 LEDs, and move LED mode constants into dt-bindings header.
- Improve bindings document.
- Remove EEE support.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: Document the DT bindings for lan78xx
Phil Elwell [Thu, 19 Apr 2018 16:59:40 +0000 (17:59 +0100)]
dt-bindings: Document the DT bindings for lan78xx

The Microchip LAN78XX family of devices are Ethernet controllers with
a USB interface. Despite being discoverable devices it can be useful to
be able to configure them from Device Tree, particularly in low-cost
applications without an EEPROM or programmed OTP.

Document the supported properties in a bindings file.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agolan78xx: Read LED states from Device Tree
Phil Elwell [Thu, 19 Apr 2018 16:59:39 +0000 (17:59 +0100)]
lan78xx: Read LED states from Device Tree

Add support for DT property "microchip,led-modes", a vector of zero
to four cells (u32s) in the range 0-15, each of which sets the mode
for one of the LEDs. Some possible values are:

    0=link/activity          1=link1000/activity
    2=link100/activity       3=link10/activity
    4=link100/1000/activity  5=link10/1000/activity
    6=link10/100/activity    14=off    15=on

These values are given symbolic constants in a dt-bindings header.

Also use the presence of the DT property to indicate that the
LEDs should be enabled - necessary in the event that no valid OTP
or EEPROM is available.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>