GitHub/moto-9609/android_kernel_motorola_exynos9610.git
8 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Wed, 28 Sep 2016 13:37:33 +0000 (16:37 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for 4.9. Major changes:

ath9k

* disable RNG by default

8 years agoMAINTAINERS: hostap: Mark the Host AP driver obsolete
Jouni Malinen [Tue, 27 Sep 2016 15:42:58 +0000 (18:42 +0300)]
MAINTAINERS: hostap: Mark the Host AP driver obsolete

This is old code for old hardware and it is not really accurate to claim
this to be maintained anymore. Change the status to "Obsolete" to make
it clearer that minor cleanup and other unnecessary changes from
automated tools is not necessarily beneficial and has larger risk of
breaking something without being quickly noticed due to lack of testing.

In addition, remove the old mailing list that does not work anymore and
point the web-page to a more accurate URL.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoath6kl: fix return value in ath6kl_wmi_set_pvb_cmd
Chaehyun Lim [Sun, 18 Sep 2016 06:30:24 +0000 (15:30 +0900)]
ath6kl: fix return value in ath6kl_wmi_set_pvb_cmd

When building with W=1, we got one warning as belows:
drivers/net/wireless/ath/ath6kl/wmi.c:3509:6: warning: variable ‘ret’
set but not used [-Wunused-but-set-variable]

At the end of ath6kl_wmi_set_pvb_cmd, it is returned by 0 regardless of
return value of ath6kl_wmi_cmd_send.
This patch fixes return value from 0 to ret that has result of
ath6kl_wmi_cmd_send execution.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath9k: disable RNG by default
Miaoqing Pan [Tue, 9 Aug 2016 07:02:27 +0000 (15:02 +0800)]
ath9k: disable RNG by default

ath9k RNG will dominates all the noise sources from the real HW
RNG, disable it by default. But we strongly recommand to enable
it if the system without HW RNG, especially on embedded systems.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Acked-by: Stephan Mueller <smueller@chronox.de>
Acked-by: Stephan Mueller <smueller@chronox.de>
Reviewed-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: fix copy engine 5 destination ring stuck
Rajkumar Manoharan [Wed, 21 Sep 2016 10:58:06 +0000 (16:28 +0530)]
ath10k: fix copy engine 5 destination ring stuck

Firmware is running watchdog timer for tracking copy engine ring index
and write index. Whenever both indices are stuck at same location for
given duration, watchdog will be trigger to assert target. While
updating copy engine destination ring write index, driver ensures that
write index will not be same as read index by finding delta between these
two indices (CE_RING_DELTA).

HTT target to host copy engine (CE5) is special case where ring buffers
will be reused and delta check is not applied while updating write index.
In rare scenario, whenever CE5 ring is full, both indices will be referring
same location and this is causing CE ring stuck issue as explained
above. This issue is originally reported on IPQ4019 during long hour stress
testing and during veriwave max clients testsuites. The same issue is
also observed in other chips as well. Fix this by ensuring that write
index is one less than read index which means that full ring is
available for receiving data.

Cc: stable@vger.kernel.org
Tested-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: Ignore SWBA event for a vif if its marked for no beacon
Mohammed Shafi Shajakhan [Tue, 20 Sep 2016 08:22:07 +0000 (13:52 +0530)]
ath10k: Ignore SWBA event for a vif if its marked for no beacon

Ignore processing further in SWBA event scheduled for a vif, if mac80211
has marked the particular vif for stop beaconing and brought the vdev
down in 'ath10k_control_beaconing'. This should potentially avoid ath10k
warning/error messages while running continuous wifi down/up with max
number of vaps configured. Found this change during code walk through
and going through other beacon configuration related functions in ath10k

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: fix error return code in ahb
Wei Yongjun [Fri, 16 Sep 2016 13:05:35 +0000 (13:05 +0000)]
ath10k: fix error return code in ahb

Fix to return a negative error code from the error handling case
instead of 0, as done elsewhere in function ath10k_ahb_probe() or
ath10k_ahb_resource_init().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agobrcmfmac: use correct skb freeing helper when deleting flowring
Rafał Miłecki [Tue, 27 Sep 2016 12:11:04 +0000 (14:11 +0200)]
brcmfmac: use correct skb freeing helper when deleting flowring

Flowrings contain skbs waiting for transmission that were passed to us
by netif. It means we checked every one of them looking for 802.1x
Ethernet type. When deleting flowring we have to use freeing function
that will check for 802.1x type as well.

Freeing skbs without a proper check was leading to counter not being
properly decreased. This was triggering a WARNING every time
brcmf_netdev_wait_pend8021x was called.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend@broadcom.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: replace WARNING on timeout with a simple error message
Rafał Miłecki [Tue, 27 Sep 2016 10:12:24 +0000 (12:12 +0200)]
brcmfmac: replace WARNING on timeout with a simple error message

Even with timeout increased to 950 ms we get WARNINGs from time to time.
It mostly happens on A-MPDU stalls (e.g. when station goes out of
range). It may take up to 5-10 secods for the firmware to recover and
for that time it doesn't process packets.

It's still useful to have a message on time out as it may indicate some
firmware problem and incorrect key update. Raising a WARNING however
wasn't really that necessary, it doesn't point to any driver bug anymore
and backtrace wasn't much useful.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortlwifi: Add explicit values to hw_variables enum
Larry Finger [Sat, 24 Sep 2016 16:57:19 +0000 (11:57 -0500)]
rtlwifi: Add explicit values to hw_variables enum

The entries in this enum may be referenced in debug output. Adding explicit
values simplifies the lookup.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortlwifi: Add HAL_DEF_WOWLAN case to *_get_hw() routines
Larry Finger [Sat, 24 Sep 2016 16:57:18 +0000 (11:57 -0500)]
rtlwifi: Add HAL_DEF_WOWLAN case to *_get_hw() routines

Only rtl8821ae implements WOWLAN; however, the other drivers may receive
a call requesting information about this mode. The other drivers need to
ignore the request rather than logging that the default branch of the
switch statement has been reached.

Reported by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortlwifi: Add switch variable to 'switch case not processed' messages
Joe Perches [Fri, 23 Sep 2016 18:27:19 +0000 (11:27 -0700)]
rtlwifi: Add switch variable to 'switch case not processed' messages

Help along debugging by showing what switch/case variable is not
being processed in these messages.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge tag 'iwlwifi-next-for-kalle-2015-09-26' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Tue, 27 Sep 2016 15:32:24 +0000 (18:32 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2015-09-26' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

* Some new HW IDs;
* Small fix in CTDP error handling;
* Remove support for older firmwares;
* Clean-ups and a few simple fixes here and there.

8 years agoath10k: support up to 64 vdevs
Ben Greear [Mon, 26 Sep 2016 18:56:26 +0000 (21:56 +0300)]
ath10k: support up to 64 vdevs

The (1 << x) - 1 trick won't work when you
are trying to fill up all 64 bits, so add special
case for that.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[kvalo@qca.qualcomm.com: remove the sentence about moving limits]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: document cycle count related counters
Ben Greear [Mon, 26 Sep 2016 18:56:26 +0000 (21:56 +0300)]
ath10k: document cycle count related counters

They are not necessarily named in an intuitive manner,
so at least add some comments to help the next person.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: fix typo in logging message
Ben Greear [Mon, 26 Sep 2016 18:56:25 +0000 (21:56 +0300)]
ath10k: fix typo in logging message

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
Vasanthakumar Thiagarajan [Mon, 26 Sep 2016 18:56:24 +0000 (21:56 +0300)]
ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode

Chipset from QCA99X0 onwards (QCA99X0, QCA9984, QCA4019 & future)
rx_hdr_status is not padded to align in 4-byte boundary. Define a
new hw_params field to handle different alignment behaviour between
different hw. This patch fixes improper retrieval of rfc1042 header
with QCA4019. This patch along with "ath10k: Properly remove padding
from the start of rx payload" will fix traffic failure in ethernet
decap mode for QCA4019.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: do not check if reset is NULL
Masahiro Yamada [Mon, 26 Sep 2016 18:56:24 +0000 (21:56 +0300)]
ath10k: do not check if reset is NULL

Since reset_control_get() never returns NULL, we can use IS_ERR()
instead of IS_ERR_OR_NULL().  The return statements can be simpler
as well.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: use devm_reset_control_get() instead of reset_control_get()
Masahiro Yamada [Mon, 26 Sep 2016 18:56:23 +0000 (21:56 +0300)]
ath10k: use devm_reset_control_get() instead of reset_control_get()

Use the managed variant of reset_control_get() to simplify the
failure path and the .remove callback.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: use devm_clk_get() instead of clk_get()
Masahiro Yamada [Mon, 26 Sep 2016 18:56:22 +0000 (21:56 +0300)]
ath10k: use devm_clk_get() instead of clk_get()

Use the managed variant of clk_get() to simplify the failure path
and the .remove callback.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoath10k: spelling and miscellaneous neatening
Joe Perches [Mon, 26 Sep 2016 18:56:21 +0000 (21:56 +0300)]
ath10k: spelling and miscellaneous neatening

Correct some trivial comment typos.
Remove unnecessary parentheses in a long line.

Signed-off-by: Joe Perches <joe@perches.com>
[kvalo@qca.qualcomm.com: drop the change for return]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
8 years agoiwlwifi: mvm: initialise ADD_STA before sending it to the firmware
Emmanuel Grumbach [Tue, 20 Sep 2016 10:40:33 +0000 (13:40 +0300)]
iwlwifi: mvm: initialise ADD_STA before sending it to the firmware

When we unshare a queue, the ADD_STA was not properly
initialised.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: allow error table address new range
Sara Sharon [Thu, 8 Sep 2016 07:44:38 +0000 (10:44 +0300)]
iwlwifi: allow error table address new range

The firmware has a new smart linker, and this table can now be
in ICCM or in SMEM. It is not hardcoded, but depends on code
size. Allow the full range.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: fix typo in TC_CMD_SEC_KEY_FROM_TABLE
Emmanuel Grumbach [Tue, 13 Sep 2016 19:59:27 +0000 (22:59 +0300)]
iwlwifi: mvm: fix typo in TC_CMD_SEC_KEY_FROM_TABLE

This define should really be TX_CMD_SEC_KEY_FROM_TABLE

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: remove support for fw older than -17 and -22
Luca Coelho [Mon, 12 Sep 2016 13:03:30 +0000 (16:03 +0300)]
iwlwifi: remove support for fw older than -17 and -22

FW versions older than -17 for 3160 and 7260 and older than -22 for
newer NICs are not supported anymore.  Don't load these versions
and remove code that handles them.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agobrcmfmac: drop unused fields from struct brcmf_pub
Rafał Miłecki [Fri, 23 Sep 2016 13:27:46 +0000 (15:27 +0200)]
brcmfmac: drop unused fields from struct brcmf_pub

They seem to be there from the first day. We calculate these values but
never use them.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: fix memory leak in brcmf_fill_bss_param
Rafał Miłecki [Wed, 21 Sep 2016 06:23:24 +0000 (08:23 +0200)]
brcmfmac: fix memory leak in brcmf_fill_bss_param

This function is called from get_station callback which means that every
time user space was getting/dumping station(s) we were leaking 2 KiB.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Fixes: 1f0dc59a6de ("brcmfmac: rework .get_station() callback")
Cc: stable@vger.kernel.org # 4.2+
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortl8xxxu: Stop log spam from each successful interrupt
Larry Finger [Wed, 21 Sep 2016 01:19:29 +0000 (21:19 -0400)]
rtl8xxxu: Stop log spam from each successful interrupt

As soon as debugging is turned on, the logs are filled with messages
reporting the interrupt status. As this quantity is usually zero, this
output is not needed. In fact, there will be a report if the status is
not zero, thus the debug line in question could probably be deleted.
Rather than taking that action, I have changed it to only be printed
when the newly added RTL8XXXU_DEBUG_INTERRUPT bit is set in the debug
mask.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortl8xxxu: Use a struct rtl8xxxu_fileops * in rtl8xxxu_init_device()
Jes Sorensen [Wed, 21 Sep 2016 01:19:28 +0000 (21:19 -0400)]
rtl8xxxu: Use a struct rtl8xxxu_fileops * in rtl8xxxu_init_device()

This saves some 217, or about, derefences of priv->fops.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortl8xxxu: Clean up llt_init() API
Jes Sorensen [Wed, 21 Sep 2016 01:19:27 +0000 (21:19 -0400)]
rtl8xxxu: Clean up llt_init() API

Remove last_tx_page argument from the llt_init() function. The
rtl8xxxu_fileops structure contains the correct TX_TOTAL_PAGE_NUM
value for the device, and rtl8xxxu_auto_llt_table() doesn't need to
know the value in the first place.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortl8xxxu: Fix off by one error calculating pubq
Jes Sorensen [Wed, 21 Sep 2016 01:19:26 +0000 (21:19 -0400)]
rtl8xxxu: Fix off by one error calculating pubq

This was detected tracing the 8188eu driver, but doesn't seem to make
any difference when using it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: code rearrangement in mwifiex_usb_host_to_card()
Amitkumar Karwar [Tue, 20 Sep 2016 15:19:04 +0000 (20:49 +0530)]
mwifiex: code rearrangement in mwifiex_usb_host_to_card()

This patch helps get rid of goto statement and improves readability.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: fix race condition causing tx timeout
Cathy Luo [Tue, 20 Sep 2016 15:19:03 +0000 (20:49 +0530)]
mwifiex: fix race condition causing tx timeout

It's been observed that in a corner case mwifiex_usb_tx_complete()
gets called before we exit from mwifiex_usb_host_to_card() after
submitting the urb. 'data_sent' flag remains set in this case. It
blocks further Tx packets and triggers watchdog timeout.

The problem is fixed by setting data_sent and port_block flag at
correct place.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: fix kernel crash for USB chipsets
Cathy Luo [Tue, 20 Sep 2016 15:19:02 +0000 (20:49 +0530)]
mwifiex: fix kernel crash for USB chipsets

Following crash issue is observed during TCP traffic stress
test

[ 2253.625439] NMI watchdog: BUG: soft lockup - CPU#3 stuck for 22s!
[kworker/u17:1:5191]
[ 2253.625520] Call Trace:
[ 2253.625527]  [<ffffffffc0b47030>] ? moal_spin_lock+0x30/0x30
[usb8xxx]
[ 2253.625533]  [<ffffffffc0ac3ceb>] ? wlan_wmm_lists_empty+0xb/0xf0
[mlan]
[ 2253.625537]  [<ffffffffc0ab0ea3>] mlan_main_process+0x1b3/0x720
[mlan]
[ 2253.625540]  [<ffffffffc0b337f5>] woal_main_work_queue+0x45/0x80
[usb8xxx]
[ 2253.625543]  [<ffffffff8108aaf0>] process_one_work+0x150/0x3f0
[ 2253.625545]  [<ffffffff8108b1e1>] worker_thread+0x121/0x520
[ 2253.625547]  [<ffffffff8108b0c0>] ? rescuer_thread+0x330/0x330
[ 2253.625549]  [<ffffffff81090222>] kthread+0xd2/0xf0
[ 2253.625551]  [<ffffffff81090150>] ?
kthread_create_on_node+0x1c0/0x1c0
[ 2253.625553]  [<ffffffff8179423c>] ret_from_fork+0x7c/0xb0
[ 2253.625555]  [<ffffffff81090150>] ?
kthread_create_on_node+0x1c0/0x1c0

In mwifiex_usb_tx_complete(), we are updating port->block_status first
and then freeing the skb attached to that URB. We may end up attaching
new skb to URB in a corner case and same will be freed. This results in
the kernel crash. The problem is solved by changing the sequence.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Shengzhen Li <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: simplify mapping of auth type
Hante Meuleman [Mon, 19 Sep 2016 11:09:59 +0000 (12:09 +0100)]
brcmfmac: simplify mapping of auth type

The 802.11 standard only has four valid auth type configurations of which
our firmware only supports two, ie. Open System and Shared Key. Simplify
the mapping falling back to automatic for other types specified by
user-space.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: fix out of bound access on clearing wowl wake indicator
Hante Meuleman [Mon, 19 Sep 2016 11:09:58 +0000 (12:09 +0100)]
brcmfmac: fix out of bound access on clearing wowl wake indicator

Clearing the wowl wakeindicator happens with a rather odd
construction where the string "clear" is used to set the iovar
wowl_wakeind. This was implemented incorrectly as it caused an
out of bound access. Use an intermediate variable of correct
length and copy string in that. Problem was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: fix clearing entry IPv6 address
Hante Meuleman [Mon, 19 Sep 2016 11:09:57 +0000 (12:09 +0100)]
brcmfmac: fix clearing entry IPv6 address

When IPv6 address is to be cleared there is a possible out of
bound access. But also the clearing of the last entry and the
adjustment of total number of stored IPv6 addresses is not
updated. This patch fixes that bug. Bug was found using coverity.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: remove unnecessary null pointer check
Hante Meuleman [Mon, 19 Sep 2016 11:09:56 +0000 (12:09 +0100)]
brcmfmac: remove unnecessary null pointer check

in the function brcmf_bus_start() in the exception handling a
check is made to dermine whether ifp is null, though this is not
possible. Removing the unnessary check.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: remove worker from .ndo_set_mac_address() callback
Arend Van Spriel [Mon, 19 Sep 2016 11:09:55 +0000 (12:09 +0100)]
brcmfmac: remove worker from .ndo_set_mac_address() callback

As it turns out there is no need to use a worker for the callback
because it is not called from atomic context.

Reported-by: Dan Williams <dcbw@redhat.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: initialize variable in brcmf_sdiod_regrl()
Arend Van Spriel [Mon, 19 Sep 2016 11:09:54 +0000 (12:09 +0100)]
brcmfmac: initialize variable in brcmf_sdiod_regrl()

In case of an error the variable returned is uninitialized. The caller
will probably check the error code before using it, but better assure
it is set to zero.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: fix memory leak in brcmf_flowring_add_tdls_peer()
Arend Van Spriel [Mon, 19 Sep 2016 11:09:53 +0000 (12:09 +0100)]
brcmfmac: fix memory leak in brcmf_flowring_add_tdls_peer()

In the error paths in brcmf_flowring_add_tdls_peer() the allocated
resource should be freed.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: rework pointer trickery in brcmf_proto_bcdc_query_dcmd()
Arend Van Spriel [Mon, 19 Sep 2016 11:09:52 +0000 (12:09 +0100)]
brcmfmac: rework pointer trickery in brcmf_proto_bcdc_query_dcmd()

The variable info is assigned to point to bcdc->msg[1], which is the
same as pointing to bcdc->buf. As that is what we want to access
make it clear by fixing the assignment. This also avoid out-of-bounds
errors from static analyzers are bcdc->msg[1] is not in the structure
definition.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agobrcmfmac: ignore 11d configuration errors
Hante Meuleman [Mon, 19 Sep 2016 11:09:51 +0000 (12:09 +0100)]
brcmfmac: ignore 11d configuration errors

802.11d is not always supported by firmware anymore. Currently the
AP configuration of 11d will cause an abort if the ioctl set is
failing. This behavior is not correct and the error should be
ignored.

Reviewed-by: Arend Van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Signed-off-by: Hante Meuleman <hante.meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: cfg80211 set_default_mgmt_key handler
Ganapathi Bhat [Tue, 20 Sep 2016 13:16:23 +0000 (18:46 +0530)]
mwifiex: cfg80211 set_default_mgmt_key handler

Previously device used to start using IGTK key as Tx key as soon as it
gets downloaded in add_key(). This patch implements set_default_mgmt_key
handler. We will update Tx key ID in set_default_mgmt_key().

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: wl18xx: Use chip specific configuration firmware
Tony Lindgren [Sat, 17 Sep 2016 16:06:33 +0000 (09:06 -0700)]
wlcore: wl18xx: Use chip specific configuration firmware

Use the wl18xx specific config firmware we now have available.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: Fix config firmware loading issues
Tony Lindgren [Sat, 17 Sep 2016 16:06:32 +0000 (09:06 -0700)]
wlcore: Fix config firmware loading issues

Booting multiple wl12xx and wl18xx devices using the same rootfs is
a pain. You currently have to symlink the right nvs file depending
on the wl12xx type.

For example, with wl1271-nvs.bin being a symlink to wl127x-nvs.bin
by default and trying to bring up a wl128x based device:

wlcore: ERROR nvs size is not as expected: 1113 != 912
wlcore: ERROR NVS file is needed during boot
wlcore: ERROR NVS file is needed during boot
wlcore: ERROR firmware boot failed despite 3 retries

Note that wl18xx uses a separate config firmware wl18xx-conf.bin
that can be generated with tools using the following two git repos:

git.ti.com/wilink8-wlan/18xx-ti-utils
git.ti.com/wilink8-wlan/wl18xx_fw

So let's not configure the nvs file for wl18xx as it's not needed
AFAIK. If it turns out that we also need the nvs file for wl18xx,
we can just add it to the config firmware data for wl18xx.

Let's fix the issue by using the chip specific config firmware
data, and make sure we produce understandable warnings if something
is missing.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: spi: Populate config firmware data
Tony Lindgren [Sat, 17 Sep 2016 16:06:31 +0000 (09:06 -0700)]
wlcore: spi: Populate config firmware data

Configure the config firmware names and make it available
in platform data.

Let's also fix the order of the struct wilink_family_data
while at it.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: sdio: Populate config firmware data
Tony Lindgren [Sat, 17 Sep 2016 16:06:30 +0000 (09:06 -0700)]
wlcore: sdio: Populate config firmware data

Configure the config firmware names and make it available
in platform data.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agowlcore: Prepare family to fix nvs file handling
Tony Lindgren [Sat, 17 Sep 2016 16:06:29 +0000 (09:06 -0700)]
wlcore: Prepare family to fix nvs file handling

Move struct wilink_family_data to be available for all TI WLAN
variants. And fix familiy typo, it should be just family.

Looks like wl12xx use two different nvs.bin files and wl18xx
uses a different conf.bin file.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge tag 'iwlwifi-next-for-kalle-2016-09-19-2' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Mon, 26 Sep 2016 11:10:31 +0000 (14:10 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2016-09-19-2' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

* added support for MU-MIMO sniffer
* added support for RRM by scan
* added support for packet injection
* migrate to devm memory allocation handling
* some fixes, mostly in DQA and new HW support
* other generic cleanups

8 years agoiwlwifi: mvm: correct rate_idx bounds-check
Johannes Berg [Wed, 14 Sep 2016 08:20:10 +0000 (10:20 +0200)]
iwlwifi: mvm: correct rate_idx bounds-check

The upper bound IWL_RATE_COUNT_LEGACY should be used
with a >= check, rejecting the value itself; fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: bail out if CTDP start operation fails
Luca Coelho [Wed, 14 Sep 2016 08:54:36 +0000 (11:54 +0300)]
iwlwifi: mvm: bail out if CTDP start operation fails

We were assigning the return value of iwl_mvm_ctdp_command() to a
variable, but never checking it.  If this command fails, we should not
allow the interface up process to proceed, since it is potentially
dangerous to ignore thermal management requirements.

Fixes: commit 5c89e7bc557e ("iwlwifi: mvm: add registration to cooling device")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: pcie: avoid variable shadowing in TFD helpers
Johannes Berg [Fri, 9 Sep 2016 07:34:46 +0000 (09:34 +0200)]
iwlwifi: pcie: avoid variable shadowing in TFD helpers

The various TFD/TB helpers have two code paths depending on the
type of TFD supported, with variable shadowing due to the new if
branches. Move the fall-through code into else branches to avoid
variable shadowing. While doing so, rename some of the variables
and do some other cleanups (like removing void * casts of void *
pointers.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: add two new 9560 series PCI IDs
Oren Givon [Thu, 8 Sep 2016 10:45:54 +0000 (13:45 +0300)]
iwlwifi: add two new 9560 series PCI IDs

Add two new PCI IDs for the 9560 series.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: cleanup usage of init_dbg parameter
Sara Sharon [Wed, 31 Aug 2016 11:13:53 +0000 (14:13 +0300)]
iwlwifi: mvm: cleanup usage of init_dbg parameter

Move the init_dbg check to earlier in the function to simplify the
code.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: cleanup redundant no_power_up_nic_in_init config
Sara Sharon [Wed, 31 Aug 2016 09:37:55 +0000 (12:37 +0300)]
iwlwifi: mvm: cleanup redundant no_power_up_nic_in_init config

This is never really used anymore.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: pcie: use LIST_HEAD() macro
Johannes Berg [Wed, 31 Aug 2016 20:16:11 +0000 (22:16 +0200)]
iwlwifi: pcie: use LIST_HEAD() macro

There's no need to declare a list and then init it manually,
just use the LIST_HEAD() macro.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: use LIST_HEAD() macro
Johannes Berg [Wed, 31 Aug 2016 20:16:11 +0000 (22:16 +0200)]
iwlwifi: mvm: use LIST_HEAD() macro

There's no need to declare a list and then init it manually,
just use the LIST_HEAD() macro.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: set HCMD_NAME for PHY_DB as well
Sara Sharon [Wed, 31 Aug 2016 16:03:01 +0000 (19:03 +0300)]
iwlwifi: mvm: set HCMD_NAME for PHY_DB as well

Currently it is logged as UNKNOWN.
Also, 0x6c seems to be the permanent ID for this command, remove
incorrect comment and uncomment the command from the commands
list.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: Add mem debugfs entry
Ido Yariv [Tue, 23 Aug 2016 18:44:59 +0000 (14:44 -0400)]
iwlwifi: mvm: Add mem debugfs entry

In order to access cached/paged memory, there are a couple of firmware
commands (one for UMAC and one for LMAC) that let the host access memory
and registers indirectly. Since this is done by the firmware on behalf
of the host, even if memory is paged out or cached, the host will
retrieve the memory as the firmware sees it (paged out memory will get
paged in).

Export this mechanism via a debugfs entry for both read and write
access.

WARNING: This mechanism has no protections at all. Invalid addresses may
crash or hang the firmware. Writing to arbitrary memory also comes with
no guarantees.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: move AP-specific code to right function
Johannes Berg [Wed, 24 Aug 2016 08:05:40 +0000 (10:05 +0200)]
iwlwifi: mvm: move AP-specific code to right function

There's no need for the common MAC context function to have an
if on AP mode, the values can be overridden in the AP-specific
function later. Clean that up by adding the full command as a
new parameter to the AP-specific function, and doing it there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: add new 8265 series PCI ID
Oren Givon [Thu, 25 Aug 2016 10:15:24 +0000 (13:15 +0300)]
iwlwifi: add new 8265 series PCI ID

Add a new PCI ID for the 8265 series.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: Add debugfs function for clocks diff
Roee Zamir [Tue, 2 Aug 2016 10:55:13 +0000 (13:55 +0300)]
iwlwifi: mvm: Add debugfs function for clocks diff

New function, reveals the diff between gp2 and host time.

Signed-off-by: Roee Zamir <roee.zamir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: migrate to devm_* API
Sharon Dvir [Wed, 10 Aug 2016 06:05:48 +0000 (09:05 +0300)]
iwlwifi: migrate to devm_* API

Change PCIE and trans resource allocations to managed resources.

Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: disable P2P queue on mac context release
Sara Sharon [Thu, 18 Aug 2016 17:14:38 +0000 (20:14 +0300)]
iwlwifi: mvm: disable P2P queue on mac context release

AP queue is properly released, but P2P queue isn't.

Fixes: commit 4c965139a3cd ("iwlwifi: mvm: support p2p device frames tx on dqa queue #2")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: don't export trace points that are used in iwlwifi only
Emmanuel Grumbach [Mon, 22 Aug 2016 20:24:40 +0000 (23:24 +0300)]
iwlwifi: don't export trace points that are used in iwlwifi only

This can save a few bytes

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: document passing unexpected Block Ack Request frames
Johannes Berg [Thu, 18 Aug 2016 12:18:40 +0000 (14:18 +0200)]
iwlwifi: mvm: document passing unexpected Block Ack Request frames

When we get an unexpected Block Ack Request frame, the BAID from
the hardware will be invalid, and we'll pass it to mac80211 for
further handling (sending a delBA action frame.)

Add a comment explaining that, in case anyone looks in the future.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: move to wide ID for all commands
Sara Sharon [Mon, 15 Aug 2016 14:36:47 +0000 (17:36 +0300)]
iwlwifi: move to wide ID for all commands

Due to firmware design considerations, move to wide ID for
all commands.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: make iwl_mvm_update_sta() an inline
Johannes Berg [Thu, 18 Aug 2016 08:32:58 +0000 (10:32 +0200)]
iwlwifi: mvm: make iwl_mvm_update_sta() an inline

There's no point in making this an out-of-line function
since it just calls a single other function with a few
changed parameters.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: pcie: log full command sequence
Sara Sharon [Mon, 15 Aug 2016 14:13:27 +0000 (17:13 +0300)]
iwlwifi: pcie: log full command sequence

Log group as well. Remove 0x prefix to match TX logging.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: move BIOS MCC retrieval to common code
Arik Nemtsov [Sun, 7 Aug 2016 15:58:29 +0000 (18:58 +0300)]
iwlwifi: move BIOS MCC retrieval to common code

This will be used by more than MVM, so move it to iwlwifi

While at it, rename WRD_METHOD to the more appropriate
WRDD_METHOD and add some documentation.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: support packet injection
Sara Sharon [Tue, 9 Aug 2016 17:03:52 +0000 (20:03 +0300)]
iwlwifi: mvm: support packet injection

For automatic testing packet injection can be useful.
Support injection through debugfs.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: Add support for RRM by scan
Avrahams Stern [Tue, 19 Jul 2016 08:15:09 +0000 (11:15 +0300)]
iwlwifi: mvm: Add support for RRM by scan

Implement support for RRM by adding an option to configure the scan
dwell time and reporting scan start time and BSS detection time, and
Advertise support for these features.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: support BAR in reorder buffer
Sara Sharon [Mon, 8 Aug 2016 10:07:01 +0000 (13:07 +0300)]
iwlwifi: mvm: support BAR in reorder buffer

On default queue we will not receive frame release notification,
but the BAR itself.
Upon receiving the BAR driver should look at the NSSN and adjust
window accordingly.

Fixes: b915c10174fb ("iwlwifi: mvm: add reorder buffer per queue")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: fix DQA AP mode station assumption
Sara Sharon [Mon, 8 Aug 2016 08:51:24 +0000 (11:51 +0300)]
iwlwifi: mvm: fix DQA AP mode station assumption

There was recently a Full AP mode feature added where hostap adds
the station at auth stage, and not assoc.
However, when running with legacy hostapd, we get the auth response
before station was added, and tx_skb_non_sta fails to allocate
a queue, resulting in a complete failure of association.
Take care of this situation as well.
Add a warning when no valid queue is returned at all and make mvm
drop the packet instead of passing it on.
Refactor the function a bit while at it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: check for valid ethernet address provided by OEM
Haim Dreyfuss [Tue, 2 Aug 2016 12:28:23 +0000 (15:28 +0300)]
iwlwifi: check for valid ethernet address provided by OEM

In 9000 family products we added an option to let the OEM fuse the
mac address via registers. If these registers are zeroed we use the OTP
address instead. Make sure that the address provided by the OEM is valid
and, if not, fall back to the OTP address as well.

Fixes: commit 17c867bfe89b ("iwlwifi: add support for getting HW address from CSR")
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: add support for MU-MIMO air sniffer
Aviya Erenfeld [Sun, 27 Mar 2016 11:53:49 +0000 (14:53 +0300)]
iwlwifi: mvm: add support for MU-MIMO air sniffer

enable MU-MIMO air sniffer if it's supported by the NIC

Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: compare full command ID
Johannes Berg [Thu, 4 Aug 2016 06:57:59 +0000 (08:57 +0200)]
iwlwifi: mvm: compare full command ID

When comparing command IDs, the group should be taken
into account so the same command/notification from a
different group doesn't trigger anything unexpected.
Fix this by comparing to the wide ID.

Fixes: commit 1738d60b31d7 ("iwlwifi: mvm: handle RX MPDUs separately")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: cleanup skb queue functions use
Sara Sharon [Wed, 3 Aug 2016 11:08:00 +0000 (14:08 +0300)]
iwlwifi: mvm: cleanup skb queue functions use

Use skb_queue_empty() and not skb_peek_tail() to check for
empty list.
Avoid a redundant check as well - loop will take care of it.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: pcie: fix typo in struct name for a000 devices
Sara Sharon [Thu, 4 Aug 2016 07:56:53 +0000 (10:56 +0300)]
iwlwifi: pcie: fix typo in struct name for a000 devices

commit 3cd1980b0cdf ("iwlwifi: pcie: introduce new tfd and tb formats")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agoiwlwifi: mvm: remove variable shadowing
Liad Kaufman [Wed, 3 Aug 2016 15:41:27 +0000 (18:41 +0300)]
iwlwifi: mvm: remove variable shadowing

Variable "ac" defined twice. Fix that.

Fixes: commit 93f436e2c7fe ("iwlwifi: mvm: set sta_id in SCD_QUEUE_CONFIG cmd")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
8 years agomwifiex: fix null pointer deference when adapter is null
Colin Ian King [Fri, 16 Sep 2016 09:37:31 +0000 (10:37 +0100)]
mwifiex: fix null pointer deference when adapter is null

If adapter is null the error exit path in mwifiex_shutdown_sw is
to down the semaphore sem and print some debug via mwifiex_dbg.
However, passing a NULL adapter to mwifiex_dbg causes a null
pointer deference when accessing adapter->dev.  This fix checks
for a null adapter at the start of the function and to exit
without the need to up the semaphore and we also skip the debug
to avoid the null pointer dereference.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agomwifiex: fix error handling in mwifiex_create_custom_regdomain
Bob Copeland [Wed, 14 Sep 2016 12:42:36 +0000 (08:42 -0400)]
mwifiex: fix error handling in mwifiex_create_custom_regdomain

smatch reports:

sta_cmdresp.c:1053 mwifiex_create_custom_regdomain() warn: possible memory leak of 'regd'

Indeed, mwifiex_create_custom_regdomain() returns NULL in the
case that channel is missing in the TLV without freeing regd.

Moreover, some other error paths in this function return ERR_PTR
values which are assigned without checking to the regd field in
the mwifiex_adapter struct.  The latter is only null-checked where
used.

Fix by freeing regd in the error path, and only update
priv->adapter->regd if the returned pointer is valid.

Cc: Amitkumar Karwar <akarwar@marvell.com>
Cc: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agortl8xxxu: Implement 8192e specific power down sequence
Jes Sorensen [Tue, 13 Sep 2016 19:03:15 +0000 (15:03 -0400)]
rtl8xxxu: Implement 8192e specific power down sequence

This powers down the 8192e correctly, or at least to the point where
the firmware will load again, when reloading the driver module.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8 years agoMerge tag 'iwlwifi-next-for-kalle-2016-09-15-2' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Sat, 17 Sep 2016 15:10:33 +0000 (18:10 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2016-09-15-2' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

* work for new hardware support continues
* dynamic queue allocation stabilization
* improvements in the MSIx code
* multiqueue support work continues
* new firmware version support
* general cleanups and improvements

8 years agoMerge branch 'ip_tunnel-collect_md'
David S. Miller [Sat, 17 Sep 2016 14:13:16 +0000 (10:13 -0400)]
Merge branch 'ip_tunnel-collect_md'

Alexei Starovoitov says:

====================
ip_tunnel: add collect_md mode to IPv4/IPv6 tunnels

Similar to geneve, vxlan, gre tunnels implement 'collect metadata' mode
in ipip, ipip6, ip6ip6 tunnels.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosamples/bpf: add comprehensive ipip, ipip6, ip6ip6 test
Alexei Starovoitov [Thu, 15 Sep 2016 20:00:32 +0000 (13:00 -0700)]
samples/bpf: add comprehensive ipip, ipip6, ip6ip6 test

the test creates 3 namespaces with veth connected via bridge.
First two namespaces simulate two different hosts with the same
IPv4 and IPv6 addresses configured on the tunnel interface and they
communicate with outside world via standard tunnels.
Third namespace creates collect_md tunnel that is driven by BPF
program which selects different remote host (either first or
second namespace) based on tcp dest port number while tcp dst
ip is the same.
This scenario is rough approximation of load balancer use case.
The tests check both traditional tunnel configuration and collect_md mode.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosamples/bpf: extend test_tunnel_bpf.sh with IPIP test
Alexei Starovoitov [Thu, 15 Sep 2016 20:00:31 +0000 (13:00 -0700)]
samples/bpf: extend test_tunnel_bpf.sh with IPIP test

extend existing tests for vxlan, geneve, gre to include IPIP tunnel.
It tests both traditional tunnel configuration and
dynamic via bpf helpers.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoip6_tunnel: add collect_md mode to IPv6 tunnels
Alexei Starovoitov [Thu, 15 Sep 2016 20:00:30 +0000 (13:00 -0700)]
ip6_tunnel: add collect_md mode to IPv6 tunnels

Similar to gre, vxlan, geneve tunnels allow IPIP6 and IP6IP6 tunnels
to operate in 'collect metadata' mode.
Unlike ipv4 code here it's possible to reuse ip6_tnl_xmit() function
for both collect_md and traditional tunnels.
bpf_skb_[gs]et_tunnel_key() helpers and ovs (in the future) are the users.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoip_tunnel: add collect_md mode to IPIP tunnel
Alexei Starovoitov [Thu, 15 Sep 2016 20:00:29 +0000 (13:00 -0700)]
ip_tunnel: add collect_md mode to IPIP tunnel

Similar to gre, vxlan, geneve tunnels allow IPIP tunnels to
operate in 'collect metadata' mode.
bpf_skb_[gs]et_tunnel_key() helpers can make use of it right away.
ovs can use it as well in the future (once appropriate ovs-vport
abstractions and user apis are added).
Note that just like in other tunnels we cannot cache the dst,
since tunnel_info metadata can be different for every packet.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agol2tp: constify net_device_ops structures
Julia Lawall [Thu, 15 Sep 2016 20:23:26 +0000 (22:23 +0200)]
l2tp: constify net_device_ops structures

Check for net_device_ops structures that are only stored in the netdev_ops
field of a net_device structure.  This field is declared const, so
net_device_ops structures that have this property 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 net_device_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device e;
position p;
@@
e.netdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct net_device_ops e;
@@
e@i@p

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

The result of size on this file before the change is:
   text       data     bss     dec         hex   filename
   3401        931      44    4376        1118 net/l2tp/l2tp_eth.o

and after the change it is:
   text      data        bss     dec     hex filename
   3993       347         44       4384    1120 net/l2tp/l2tp_eth.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agodwc_eth_qos: constify net_device_ops structures
Julia Lawall [Thu, 15 Sep 2016 20:23:25 +0000 (22:23 +0200)]
dwc_eth_qos: constify net_device_ops structures

Check for net_device_ops structures that are only stored in the netdev_ops
field of a net_device structure.  This field is declared const, so
net_device_ops structures that have this property 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 net_device_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device e;
position p;
@@
e.netdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct net_device_ops e;
@@
e@i@p

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

The result of size on this file before the change is:
   text       data     bss     dec         hex   filename
  21623       1316      40   22979        59c3
   drivers/net/ethernet/synopsys/dwc_eth_qos.o

and after the change it is:
   text      data        bss     dec     hex filename
  22199       724         40      22963    59b3
   drivers/net/ethernet/synopsys/dwc_eth_qos.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agohisilicon: constify net_device_ops structures
Julia Lawall [Thu, 15 Sep 2016 20:23:24 +0000 (22:23 +0200)]
hisilicon: constify net_device_ops structures

Check for net_device_ops structures that are only stored in the netdev_ops
field of a net_device structure.  This field is declared const, so
net_device_ops structures that have this property 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 net_device_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device e;
position p;
@@
e.netdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct net_device_ops e;
@@
e@i@p

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

The result of size on this file before the change is:

   text       data     bss     dec         hex   filename
   7995        848       8    8851        2293
   drivers/net/ethernet/hisilicon/hip04_eth.o

and after the change it is:

   text      data        bss     dec     hex filename
   8571       256          8       8835    2283
   drivers/net/ethernet/hisilicon/hip04_eth.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agollc: switch type to bool as the timeout is only tested versus 0
Alan Cox [Thu, 15 Sep 2016 17:51:25 +0000 (18:51 +0100)]
llc: switch type to bool as the timeout is only tested versus 0

(As asked by Dave in Februrary)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: l3mdev: Remove netif_index_is_l3_master
David Ahern [Thu, 15 Sep 2016 17:18:45 +0000 (10:18 -0700)]
net: l3mdev: Remove netif_index_is_l3_master

No longer used after e0d56fdd73422 ("net: l3mdev: remove redundant calls")

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: vrf: Remove RT_FL_TOS
David Ahern [Thu, 15 Sep 2016 17:13:47 +0000 (10:13 -0700)]
net: vrf: Remove RT_FL_TOS

No longer used after d66f6c0a8f3c0 ("net: ipv4: Remove l3mdev_get_saddr")

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotcp: prepare skbs for better sack shifting
Eric Dumazet [Thu, 15 Sep 2016 16:33:02 +0000 (09:33 -0700)]
tcp: prepare skbs for better sack shifting

With large BDP TCP flows and lossy networks, it is very important
to keep a low number of skbs in the write queue.

RACK and SACK processing can perform a linear scan of it.

We should avoid putting any payload in skb->head, so that SACK
shifting can be done if needed.

With this patch, we allow to pack ~0.5 MB per skb instead of
the 64KB initially cooked at tcp_sendmsg() time.

This gives a reduction of number of skbs in write queue by eight.
tcp_rack_detect_loss() likes this.

We still allow payload in skb->head for first skb put in the queue,
to not impact RPC workloads.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge tag 'wireless-drivers-next-for-davem-2016-09-15' of git://git.kernel.org/pub...
David S. Miller [Sat, 17 Sep 2016 13:53:29 +0000 (09:53 -0400)]
Merge tag 'wireless-drivers-next-for-davem-2016-09-15' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.9

Major changes:

iwlwifi

* preparation for new a000 HW continues
* some DQA improvements
* add support for GMAC
* add support for 9460, 9270 and 9170 series

mwifiex

* support random MAC address for scanning
* add HT aggregation support for adhoc mode
* add custom regulatory domain support
* add manufacturing mode support via nl80211 testmode interface

bcma

* support BCM53573 series of wireless SoCs

bitfield.h

* add FIELD_PREP() and FIELD_GET() macros

mt7601u

* convert to use the new bitfield.h macros

brcmfmac

* add support for bcm4339 chip with modalias sdio:c00v02D0d4339

ath10k

* add nl80211 testmode support for 10.4 firmware
* hide kernel addresses from logs using %pK format specifier
* implement NAPI support
* enable peer stats by default

ath9k

* use ieee80211_tx_status_noskb where possible

wil6210

* extract firmware capabilities from the firmware file

ath6kl

* enable firmware crash dumps on the AR6004

ath-current is also merged to fix a conflict in ath10k.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'mlx5e-order-0'
David S. Miller [Sat, 17 Sep 2016 13:51:48 +0000 (09:51 -0400)]
Merge branch 'mlx5e-order-0'

Tariq Toukan says:

====================
mlx5e Order-0 pages for Striding RQ

In this series, we refactor our Striding RQ receive-flow to always use
fragmented WQEs (Work Queue Elements) using order-0 pages, omitting the
flow that allocates and splits high-order pages which would fragment
and deplete high-order pages in the system.

The first patch gives a slight degradation, but opens the opportunity
to using a simple page-cache mechanism of a fair size.
The page-cache, implemented in patch 3, not only closes the performance
gap but even gives a gain.
In patch 2 we re-organize the code to better manage the calls for
alloc/de-alloc pages in the RX flow.

Series generated against net-next commit:
bed806cb266e "Merge branch 'mlxsw-ethtool'"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet/mlx5e: Implement RX mapped page cache for page recycle
Tariq Toukan [Thu, 15 Sep 2016 13:08:38 +0000 (16:08 +0300)]
net/mlx5e: Implement RX mapped page cache for page recycle

Instead of reallocating and mapping pages for RX data-path,
recycle already used pages in a per ring cache.

Performance tests:
The following results were measured on a freshly booted system,
giving optimal baseline performance, as high-order pages are yet to
be fragmented and depleted.

We ran pktgen single-stream benchmarks, with iptables-raw-drop:

Single stride, 64 bytes:
* 4,739,057 - baseline
* 4,749,550 - order0 no cache
* 4,786,899 - order0 with cache
1% gain

Larger packets, no page cross, 1024 bytes:
* 3,982,361 - baseline
* 3,845,682 - order0 no cache
* 4,127,852 - order0 with cache
3.7% gain

Larger packets, every 3rd packet crosses a page, 1500 bytes:
* 3,731,189 - baseline
* 3,579,414 - order0 no cache
* 3,931,708 - order0 with cache
5.4% gain

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>