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Commit Graph

56518 Commits

Author SHA1 Message Date
Simon Horman
c451113291 ravb: use pdev rather than ndev for error messages
This corrects what appear to be typos, making the code consistent with
itself, and allowing meaningful prefixes to be displayed with the errors in
question.

Before:
 (null): failed to initialize MDIO
 (null): Cannot allocate desc base address table (size 176 bytes)

After:
ravb e6800000.ethernet: failed to initialize MDIO
ravb e6800000.ethernet: Cannot allocate desc base address table (size 176 bytes)

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 16:32:37 -05:00
Vivien Didelot
b9b377136e net: dsa: mv88e6xxx: lookup switch name
All the mv88e6xxx drivers use the exact same code in their probe
function to lookup the switch name given its ID. Thus introduce a
mv88e6xxx_switch_id structure and a mv88e6xxx_lookup_name function in
the common mv88e6xxx code.

In the meantime make __mv88e6xxx_reg_{read,write} static since we do not
need to expose these low-level r/w routines anymore.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 15:54:13 -05:00
Vivien Didelot
3996a4ffb0 net: dsa: mv88e6xxx: assert SMI lock
It's easy to forget to lock the smi_mutex before calling the low-level
_mv88e6xxx_reg_{read,write}, so add a assert_smi_lock function in them.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 15:54:13 -05:00
Javier Martinez Canillas
07f56c616d net: encx24j600: Export missing SPI module alias information
The driver Kconfig symbol is tristate which means that it can be built as
a module but the module alias information is not added to the module info
so module autoload won't work since user-space won't have the information.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 15:28:56 -05:00
Javier Martinez Canillas
d0cb48cd19 net: encx24j600: Fix SPI id table definition
A driver's SPI id table is expected to be an array of struct spi_device_id
that ends with a zero-initialized sentinel entry. But this driver defines
the table as a single struct spi_device_id and sets .id_table to a pointer
to this struct.

But spi_match_id() has a loop that iterates while the struct spi_device_id
.name[0] is not NULL, so not having a sentinel can cause a NULL pointer
deference error.

This patch defines the SPI id table correctly as all other SPI drivers do.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 15:28:56 -05:00
Govindarajulu Varadarajan
322cf7e3a4 enic: assign affinity hint to interrupts
The affinity hint is used by the user space daemon, irqbalancer, to
indicate a preferred CPU mask for irqs. This patch sets the irq affinity
hint to local numa core first, when exausted we try non-local numa cores.

Also set tx xps cpus mask bassed on affinity hint.

v2: remove the global affinity policy.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-02 15:08:00 -05:00
huangdaode
1cf7d8dda2 net: hisilicon: Remove .owner assignment from platform_driver
platform_driver doesn't need to set .owner, because
platform_driver_register() will set it.

Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-01 16:03:41 -05:00
Vivien Didelot
76e398a627 net: dsa: use switchdev obj for VLAN add/del ops
Simplify DSA by pushing the switchdev objects for VLAN add and delete
operations down to its drivers. Currently only mv88e6xxx is affected.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-01 15:56:11 -05:00
David S. Miller
b75ec3af27 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-01 00:15:30 -04:00
David S. Miller
a493bcf8d6 iwlwifi
* bug fix for TDLS
 * fixes and cleanups in scan
 * support of several scan plans
 * improvements in FTM
 * fixes in FW API
 * improvements in the failure paths when the bus is dead
 * other various small things here and there
 
 ath10k
 
 * add QCA9377 support
 * fw_stats support for 10.4 firmware
 
 ath6kl
 
 * report antenna configuration to user space
 * implement ethtool stats
 
 ssb
 
 * add Kconfig SSB_HOST_SOC for compiling SoC related code
 * move functions specific to SoC hosted bus to separated file
 * pick PCMCIA host code support from b43 driver
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Merge tag 'wireless-drivers-next-for-davem-2015-10-29' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
iwlwifi

* bug fix for TDLS
* fixes and cleanups in scan
* support of several scan plans
* improvements in FTM
* fixes in FW API
* improvements in the failure paths when the bus is dead
* other various small things here and there

ath10k

* add QCA9377 support
* fw_stats support for 10.4 firmware

ath6kl

* report antenna configuration to user space
* implement ethtool stats

ssb

* add Kconfig SSB_HOST_SOC for compiling SoC related code
* move functions specific to SoC hosted bus to separated file
* pick PCMCIA host code support from b43 driver
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 20:38:24 +09:00
Jiri Pirko
c7070fc4ec mlxsw: spectrum: Make mlxsw_sp_port_switchdev_ops static
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:58 +09:00
Or Gerlitz
d9324f68ee mlxsw: Put braces on all arms of branch statement
Fix a place where checkpatch complains that braces should be used
on all arms of this statement.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:57 +09:00
Or Gerlitz
ef743fddb3 mlxsw: Put constant on the right side of comparisons
Fixes those places where checkpatch complains that comparisons
should place the constant on the right side of the test.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:54 +09:00
Jiri Pirko
135f9eceb7 mlxsw: spectrum: Fix ageing time value
The value passed through switchdev attr set is not in jiffies, but in
clock_t, so fix the convert.

Reported-by: Sagi Rotem <sagir@mellanox.com>
Fixes: 56ade8fe3f ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:52 +09:00
Jiri Pirko
75c09280fe mlxsw: reg: Avoid unnecessary line wrap for mlxsw_reg_sfd_uc_unpack
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:50 +09:00
Jiri Pirko
8316f087f7 mlxsw: reg: Fix desription typos of couple of SFN items
Fix copy-paste errors.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:50 +09:00
Jiri Pirko
4e9ec0839b mlxsw: reg: Fix description for reg_sfd_uc_sub_port
The original description was for LAG, so fix it.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:48 +09:00
Ido Schimmel
0293038e0c mlxsw: spectrum: Add support for flood control
Add or remove a bridged port from the flooding domain of unknown unicast
packets according to user configuration.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:47 +09:00
Ido Schimmel
1b3433a942 mlxsw: spectrum: Add support for VLAN ranges in flooding configuration
When enabling a range of VLANs on a bridged port we can configure
flooding for these VLANs by one register access instead of calling the
same register for each VLAN. This is accomplished by using the 'range'
field of the Switch Flooding Table Register (SFTR).

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:45 +09:00
Jiri Pirko
0d9b970cee mlxsw: spectrum: move "bridged" bool to u8 flags
It is a flag anyway, so move it to existing u8 flag and don't waste mem.
Fix the flags to be in single u8 on the way.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:26:42 +09:00
Iyappan Subramanian
16615a4c6f drivers: net: xgene: Add support RGMII TX/RX delay configuration
Add RGMII TX/RX delay configuration support. RGMII standard requires 2ns
delay to help the RGMII bridge receiver to sample data correctly. If the
default value does not provide proper centering of the data sample, the
TX/RX delay parameters can be used to adjust accordingly.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:21:51 +09:00
John W. Linville
b8812fa883 geneve: add IPv6 bits to geneve_fill_metadata_dst
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:10:54 +09:00
John W. Linville
3a56f86f1b geneve: handle ipv6 priority like ipv4 tos
Other callers of udp_tunnel6_xmit_skb just pass 0 for the prio
argument.  Jesse Gross <jesse@nicira.com> suggested that prio is really
the same as IPv4's tos and should be handled the same, so this is my
interpretation of that suggestion.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported-by: Jesse Gross <jesse@nicira.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:10:51 +09:00
John W. Linville
8ed66f0e82 geneve: implement support for IPv6-based tunnels
NOTE: Link-local IPv6 addresses for remote endpoints are not supported,
since the driver currently has no capacity for binding a geneve
interface to a specific link.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-30 12:10:51 +09:00
Ben Greear
13eff53113 ath6kl: implement ethtool stats
This supports a way to get target stats through normal
ethtool stats API.

For instance:
# ethtool -S wlan1
NIC statistics:
     tx_pkts_nic: 353
     tx_bytes_nic: 25142
     rx_pkts_nic: 6
     rx_bytes_nic: 996
     d_tx_ucast_pkts: 89
     d_tx_bcast_pkts: 264
     d_tx_ucast_bytes: 3020
     d_tx_bcast_bytes: 22122
...

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:07:00 +02:00
Ben Greear
0370248379 ath6kl: break stats gathering code into separate method
This will allow us to call it from elsewhere when implementing
ethtool stats.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:58 +02:00
Ben Greear
53cc3291bc ath6kl: fix firmware version assignment
Improper use of strlcpy caused garbage to be appended to the
firmware version string.  Fix this by paying attention to the
ie_lenth.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:56 +02:00
Ben Greear
7fd9852456 ath6kl: add error message to explain lack of HT
It can take a user a while to understand why their
NIC that advertises 802.11n support cannot actually
do 802.11n.  Print out a warning in the logs to save
the next poor person to use this NIC some trouble.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:54 +02:00
Ben Greear
9c2e90ffc9 ath6kl: report antenna configuration
This lets 'iw phy phy0 info' report antennas for
the radio device:

...
	Available Antennas: TX 0x2 RX 0x2
	Configured Antennas: TX 0x2 RX 0x2
...

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:52 +02:00
Vladimir Kondratiev
5140a5fde2 wil6210: handle failure in Tx vring config
When configuring Tx vring for new connection,
WMI call to the firmware may fail. In this case, need to
clean up properly. In particular, need to call
cfg80211_del_sta() in case of AP like interface.

Perform full "disconnect" procedure for proper clean up

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:49 +02:00
Vladimir Kondratiev
817f185344 wil6210: fix device ready detection
Adjust driver behavior during FW boot. Proper sequence of
events after reset and FW download, is as following:

- FW prepares mailbox structure and reports IRQ "FW_READY"
- driver caches mailbox registers, marks mailbox readiness
- FW sends WMI_FW_READY event, ignore it
- FW sends WMI_READY event with some data
- driver stores relevant data marks FW is operational

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:47 +02:00
Hamad Kadmany
e3d2ed9434 wil6210: Fix TSO overflow handling
When Tx ring full is encountered with TSO,
printout of "DMA error" was wrongly printed.

In addition, in case of Tx ring full return
proper error code so that NETDEV_TX_BUSY is
returned to network stack in order not to
drop the packets and retry transmission of the
packets when ring is emptied.

Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:45 +02:00
Vladimir Kondratiev
b03fbab0c4 wil6210: ignore selected WMI events
Some events are ignored for purpose; such events should not
be treated as "unhandled events". Replace info message
saying "unhandled" with debug one saying "ignore", to reduce
dmesg pollution

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:06:43 +02:00
Bartosz Markowski
a226b519d4 ath10k: add QCA9377 chipset support
Add the hardware name, revision and update the pci_id table.

Currently there're two HW ref. designs available I'm aware of,
with 1.0.2 and 1.1 chip revisions. I've access and been using
the first one so far and this patch cover only it.

QCA9377 inherits most of the stuff (e.g. fw interfaces)
from QCA61x4 design, so the integration was pretty straightforward.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:02:33 +02:00
Rajkumar Manoharan
5036fe0f6f ath10k: reload HT/VHT capabilities on antenna change
To reflect configured antenna settings in HT/VHT MCS map,
reload the HT/VHT capabilities upon antenna change.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:00:55 +02:00
Rajkumar Manoharan
f58512f336 ath10k: move static HT/VHT capability setup functions
Move HT and VHT capabiltity setup static functions to avoid
forward declaration.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:00:47 +02:00
Rajkumar Manoharan
7a1d70ab05 ath10k: fill HT/VHT MCS rateset only for configured chainmask
HT/VHT MCS rateset should be filled only for configured chainmask
rather that max supported chainmask. Fix that by checking configured
chainmask while filling HT/VHT MCS rate map.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:00:41 +02:00
Rajkumar Manoharan
166de3f189 ath10k: remove supported chain mask
Removing supported chainmask fields as it can be always derived
from num_rf_chains.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 13:00:34 +02:00
Rajkumar Manoharan
b4c306d0c5 ath10k: remove shadow copy of CE descriptors for source ring
For the messages from host to target, shadow copy of CE descriptors
are maintained in source ring. Before writing actual CE descriptor,
first shadow copy is filled and then it is copied to CE address space.
To optimize in download path and to reduce d-cache pressure, removing
shadow copy of CE descriptors. This will also reduce driver memory
consumption by 33KB during on device probing.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:59:04 +02:00
Rajkumar Manoharan
765952e40d ath10k: cleanup copy engine send completion
The physical address necessary to unmap DMA ('bufferp') is stored
in ath10k_skb_cb as 'paddr'. ath10k doesn't rely on the meta/transfer_id
when handling send completion (htc ep id is stored in sk_buff control
buffer). So the unused output arguments {bufferp, nbytesp and transfer_idp}
are removed from CE send completion. This change is needed before removing
the shadow copy of copy engine (CE) descriptors in follow up patch.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:58:19 +02:00
Rajkumar Manoharan
1e8f86d9cb ath10k: remove send completion validation in diag read/write
CE diag window access is serialized (it has to be by design) so
there's no way to get a different send completion. so there's no
need for post completion validation.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:58:04 +02:00
Rajkumar Manoharan
b4e84c5606 ath10k: use local memory instead of shadow descriptor in ce_send
Currently to avoid uncached memory access while filling up copy engine
descriptors, shadow descriptors are used. This can be optimized further
by removing shadow descriptors. To achieve that first shadow ring
dependency in ce_send is removed by creating local copy of the
descriptor on stack and make a one-shot copy into the "uncached"
descriptor.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:57:44 +02:00
Manikanta Pubbisetty
98dd2b92bb ath10k: add fw_stats support to 10.4 firmware
This patch adds support for getting firmware debug stats in 10.4 fw.

Signed-off-by: Manikanta Pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:54:45 +02:00
Alan Liu
a81a98cee9 ath10k: add FW API support to test mode
Add WMI-TLV and FW API support in ath10k testmode.
Ath10k can get right wmi command format from UTF image
to communicate UTF firmware.

Signed-off-by: Alan Liu <alanliu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:48:01 +02:00
Maharaja
62f77f095c ath10k: enable adaptive CCA
European Union has made it mandatory that all devices working in 2.4 GHz
has to adhere to the ETSI specification (ETSI EN 300 328 V1.9.1)
beginnig this year. The standard basically speaks about interferences
in 2.4Ghz band.
For example, when 802.11 device detects interference, TX must be stopped
as long as interference is present.

Adaptive CCA is a feature, when enabled the device learns from the
environment and configures CCA levels adaptively. This will improve
detecting interferences and the device can stop trasmissions till the
interference is present eventually leading to good performances in
varying interference conditions.

The patch includes code for enabling adaptive CCA for 10.2.4 firmware on
QCA988X.

Signed-off-by: Maharaja <c_mkenna@qti.qualcomm.com>
Signed-off-by: Manikanta Pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-28 21:33:03 +02:00
Rafał Miłecki
399500da18 ssb: pick PCMCIA host code support from b43 driver
ssb bus can be found on various "host" devices like PCI/PCMCIA/SDIO.
Every ssb bus contains cores AKA devices.
The main idea is to have ssb driver scan/initialize bus and register
ready-to-use cores. This way ssb drivers can operate on a single core
mostly ignoring underlaying details.

For some reason PCMCIA support was split between ssb and b43. We got
PCMCIA host device probing in b43, then bus scanning in ssb and then
wireless core probing back in b43. The truth is it's very unlikely we
will ever see PCMCIA ssb device with no 802.11 core but I still don't
see any advantage of the current architecture.

With proposed change we get the same functionality with a simpler
architecture, less Kconfig symbols, one killed EXPORT and hopefully
cleaner b43. Since b43 supports both: ssb & bcma I prefer to keep ssb
specific code in ssb driver.

This mostly moves code from b43's pcmcia.c to bridge_pcmcia_80211.c. We
already use similar solution with b43_pci_bridge.c. I didn't use "b43"
in name of this new file as in theory any driver can operate on wireless
core.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 21:04:04 +02:00
Marty Faltesek
0117e78aec mwifiex: toggle carrier state in start_ap/stop_ap.
In uap mode the carrier is not enabled until after the first STA joins.
The carrier triggers the bridge to start its state machine, and if STP
is enabled, it takes 4 seconds as it transitions from disabled to
forwarding. During this time the bridge drops all traffic, and the EAPOL
handshake times out after 3 seconds, preventing stations from joining.

Follow the logic used in mac80211 and start the carrier in start_ap
and disable it in stop_ap. This has a nice benefit of allowing the
first station connection time to be reduced by up to 75% when STP is
in use.

Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 21:00:01 +02:00
yfw
072255241d wcn36xx: Remove warning message when dev is NULL for arm64 dma_alloc.
arm64 has requirement that all the dma operations have actual device.
Otherwise, following warnning message shown and dma allocation fails:

WARNING: CPU: 0 PID: 954 at arch/arm64/mm/dma-mapping.c:106 __dma_alloc+0x24c/0x258()
Use an actual device structure for DMA allocation
Modules linked in: wcn36xx wcn36xx_platform
CPU: 0 PID: 954 Comm: ifconfig Not tainted 4.0.0+ #14
Hardware name: Qualcomm Technologies, Inc. MSM 8916 MTP (DT)
Call trace:
[<ffffffc000089904>] dump_backtrace+0x0/0x124
[<ffffffc000089a38>] show_stack+0x10/0x1c
[<ffffffc000627114>] dump_stack+0x80/0xc4
[<ffffffc0000b2e64>] warn_slowpath_common+0x98/0xd0
[<ffffffc0000b2ee8>] warn_slowpath_fmt+0x4c/0x58
[<ffffffc00009487c>] __dma_alloc+0x248/0x258
[<ffffffbffc009270>] wcn36xx_dxe_allocate_mem_pools+0xc4/0x108 [wcn36xx]
[<ffffffbffc0079c4>] wcn36xx_start+0x38/0x240 [wcn36xx]
[<ffffffc0005f161c>] ieee80211_do_open+0x1b0/0x9a4
[<ffffffc0005f1e68>] ieee80211_open+0x58/0x68
[<ffffffc00051693c>] __dev_open+0xb0/0x120
[<ffffffc000516c10>] __dev_change_flags+0x88/0x150
[<ffffffc000516cf4>] dev_change_flags+0x1c/0x5c
[<ffffffc000570950>] devinet_ioctl+0x644/0x6f0

Signed-off-by: Yin, Fengwei <fengwei.yin@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 20:58:58 +02:00
Bob Copeland
8e8e54c490 wcn36xx: introduce per-channel ring buffer locks
wcn36xx implements a ring buffer for transmitted frames for each
(high and low priority) DMA channel.  The ring buffers are lockless:
new frames are inserted at the head of the queue, while finished
packets are reaped from the tail.

Unfortunately, the list manipulations are missing any kind of barriers
so are susceptible to various races: for example, a TX completion
handler might read an updated desc->ctrl before the head has actually
advanced, and then null out the ctl->skb pointer while it is still
being used in the TX path.

Simplify things here by adding a spin lock when traversing the ring.
This change increased stability for me without adding any noticeable
overhead on my platform (xperia z).

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 20:58:06 +02:00
Zefir Kurtisi
56bae46427 ath9k: fix phyerror codes
Some of the ath9k_phyerr enums were wrong from the
beginning (and even before). Most of the time the
codes were used for counters to be displayed over
debugfs, which made this a non-functional issue.

Some (e.g. ATH9K_PHYERR_FALSE_RADAR_EXT) are used
for radar detection and require the correct code
to work as intended.

This patch includes:
a) fixes
  ATH9K_PHYERR_FALSE_RADAR_EXT:    24 => 36
  ATH9K_PHYERR_CCK_LENGTH_ILLEGAL: 32 => 28
  ATH9K_PHYERR_CCK_POWER_DROP:     33 => 29
  ATH9K_PHYERR_HT_CRC_ERROR:       34 => 32
  ATH9K_PHYERR_HT_LENGTH_ILLEGAL:  35 => 33
  ATH9K_PHYERR_HT_RATE_ILLEGAL:    36 => 34

b) extensions
  ATH9K_PHYERR_CCK_BLOCKER = 24
  ATH9K_PHYERR_HT_ZLF      = 35
  ATH9K_PHYERR_GREEN_FIELD = 37

Aside from the correction and completion made in
the enum, the patch also extends the display of
the related counters in the debugfs.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-10-28 20:57:13 +02:00