Commit Graph

613 Commits

Author SHA1 Message Date
Linus Torvalds ae045e2455 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...
2014-08-06 09:38:14 -07:00
Thomas Gleixner 6438e0ddc8 wireless: ath9k: Get rid of timespec conversions
We have interfaces. Remove the open coded cruft. Reduces text size
along with the code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
2014-07-23 15:01:51 -07:00
Rajkumar Manoharan 76ac9ed6ff ath9k_hw: Fix pll2_divfrac for AR953x
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-25 15:40:39 -04:00
Felix Fietkau 8d7e09dda8 ath9k: save tsf in channel context
Save TSF in channel context for multiple operating channels.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19 15:49:18 -04:00
Oleksij Rempel 9d83cd5cd2 ath9k: reorder or remove some includes
to fix compile errors

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:39 -04:00
Felix Fietkau 7a42e4e74b ath9k_hw: get QCA953x WMAC revision via platform_data
The SREV register in the WMAC register space does not contain the chip
revision, so it needs to be passed in from the kernel.

With an updated kernel, this fixes tx gain table selection.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-06 14:51:02 -04:00
David S. Miller 04f58c8854 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	Documentation/devicetree/bindings/net/micrel-ks8851.txt
	net/core/netpoll.c

The net/core/netpoll.c conflict is a bug fix in 'net' happening
to code which is completely removed in 'net-next'.

In micrel-ks8851.txt we simply have overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-25 20:29:20 -04:00
Sujith Manoharan c90d4f7bc5 ath9k: Disable AR_INTR_SYNC_HOST1_FATAL for QCA953x
Along with AR9340 and AR955x, this is also needed for
the QCA953x SoC.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:15 -04:00
Sujith Manoharan c08148bb75 ath9k: Add QCA953x WMAC platform support
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:15 -04:00
Felix Fietkau 105ff411c9 ath9k_hw: fix unreachable code in baseband hang detection code
The commit "ath9k: reduce baseband hang detection false positive rate"
added a delay in the loop checking the baseband state, however it was
unreachable due to previous 'continue' statements.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-13 14:57:26 -04:00
John W. Linville f3b6a488a6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	drivers/net/wireless/ath/ath9k/recv.c
	drivers/net/wireless/mwifiex/pcie.c
2014-03-04 13:05:12 -05:00
Felix Fietkau d31a36a6d8 ath9k: reduce baseband hang detection false positive rate
Check if the baseband state remains stable, and add a small delay
between register reads.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-25 14:54:11 -05:00
John W. Linville 0e028ab0fb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-02-13 14:43:02 -05:00
Sujith Manoharan 9e495a2603 ath9k: Remove ath9k rate control
There is no benefit in retaining the legacy rate control module
in the driver codebase.

It is known to be buggy and has less than optimal performance
in real-world environments compared with minstrel. The only
reason that it was kept when we made the switch to minstrel
as default was that it showed higher throughput numbers in a
clean/ideal environment.

This is no longer the case and minstrel can push ath9k to
the same throughput levels. In TCP, with 3-stream cards, more than
295 Mbps can be obtained in open air, with 2-stream cards,
210 Mbps is easily reached. To test performance issues,
instead of using a broken rate control module, it is better
to use the fixed-rate interface provided by mac80211 anyway.

The ath9k RC has not received any bug fixes in years and is
just bit-rotting away - this patch removes it.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12 15:36:04 -05:00
Sujith Manoharan 3683a07b29 ath9k: Fix build error on ARM
Use mdelay instead of udelay to fix this error:

ERROR: "__bad_udelay" [drivers/net/wireless/ath/ath9k/ath9k_hw.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-04 15:30:07 -05:00
Sujith Manoharan a64e1a4506 ath9k: Fix RX interrupt mitigation
The threshold values for RX interrupt mitigation
are different for AR9003 and AR9002 families.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-23 14:02:45 -05:00
Sujith Manoharan 1e2f9295f4 ath9k: Disable cross-band FCC
Fast Channel Change across bands was enabled for
AR9462 recently, but this is causing baseband issues.
Disable it until this feature is tested well. Also,
remove the feature bit for AR9565 since it is
a single-band card and doesn't support this feature.

Cc: stable@vger.kernel.org
Reported-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-09 10:56:41 -05:00
Sujith Manoharan 2c323058bc ath9k: Add hardware support for QCA9531
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:37:01 -05:00
Sujith Manoharan e6b1e46eb2 ath9k: Assign macVersion for QCA9531
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:37:00 -05:00
Sujith Manoharan ff47f9320e ath9k: Remove unused config option ack_6mb
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:59 -05:00
Sujith Manoharan 04575f21d9 ath9k: Fix AR9100 chip power-on
AR9100 requires a larger delay after waking up
the RTC.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:58 -05:00
Sujith Manoharan f57cf939f0 ath9k: Cleanup __ath9k_hw_init()
* Move initialization of config variables to
  ath9k_hw_init_config().

* Move initialization of defaults to ath9k_hw_init_defaults().

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:58 -05:00
Sujith Manoharan de82582b9a ath9k: Handle unsupported MAC versions early
There is no point in trying to bring up the chip when
the MAC version is not present in the supported list.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:58 -05:00
Sujith Manoharan e4ef276303 ath9k: Move private HW callbacks to hw-ops.h
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:58 -05:00
Sujith Manoharan 1dd9619a21 ath9k: Remove unused functions
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:58 -05:00
Sujith Manoharan a7abaf7da9 ath9k: Fix PHY restart workaround
The PHY restart workaround that handles baseband hangs
for packets with unsupported rates is required only
for a HW bug in AR9300 v2.2. All the subsequent chips in
the AR9003 family do not require this driver fix since
it has been addressed in the HW.

Since the value of the AR_PHY_RESTART register is written
with the default initvals, make sure that PHY restart is
always disabled once this particular BB hang signaure has
been encountered.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:57 -05:00
Sujith Manoharan 990de2b2e4 ath9k: Add HW callbacks for MAC/BB hang checks
This is required for adding separate hang check
routines for AR9002 and AR9003.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:57 -05:00
Sujith Manoharan 4598702d1b ath9k: Register supported HW hang checks
HW hang checks have to be done on a per-chip basis.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:57 -05:00
Felix Fietkau cca213fd6b ath9k_hw: fix TSF offset calculation
Since the unit is microseconds and not milliseconds, tv_sec needs to be
multiplied by 1000000, not 1000.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:56 -05:00
Felix Fietkau a6a172b292 ath9k_hw: fix gentimer callback without overflow handler
If a gentimer has both the trigger and the overflow bits set, only
mask out the trigger bit if an overflow handler is present.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-01-03 15:36:56 -05:00
Felix Fietkau 6a4d05dc0c ath9k: move ath9k_debug_sync_cause out of ath9k_hw
ath9k_hw should not depend on any ath9k data structures like ath_softc

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-19 14:41:56 -05:00
Sujith Manoharan d7df7a55cb ath9k: Use a subroutine for the AR9330 reset WAR
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:51 -05:00
Sujith Manoharan 4dc78c437a ath9k: Fix RTC reset delay
The delay that is required after issuing a RTC reset
varies for each chip. Handle this properly.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:49 -05:00
Sujith Manoharan afe36533c1 ath9k: Add a delay between RTC reset/clear for AR9003
The small delay that is present between a RTC reset/clear
operation is required for the chip to settle and this is
needed for all chips, not just the AR9002 family.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:48 -05:00
Felix Fietkau 4ed15762dc ath9k_hw: clean up station beacon timer API
Remove unused fields, pass timer info in usec instead of TU.
Preparation for fixing nexttbtt calculation

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:32 -05:00
Felix Fietkau 49685634c6 ath9k_hw: remove additional_swba_backoff
It is unused

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:29 -05:00
Felix Fietkau ae0c40314a ath9k_hw: simplify spur channel handling
Remove ah->config.spurmode and ah->config.spurchans, always use EEPROM
data.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:27 -05:00
Felix Fietkau 787e05360b ath9k_hw: remove ah->config.pcie_clock_req
It is unused

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:26 -05:00
Felix Fietkau 60c4bf2974 ath9k_hw: remove defunct ad-hoc mode ATIM window handling code
The hardware does not have support for ATIM processing, and the driver
does not set up ah->atim_window anywhere. Additionally, the code can
clobber the timer used by P2P powersave.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:24 -05:00
Felix Fietkau c67ce33919 ath9k_hw: clean up generic timer code
- Use generic bitops instead of custom hackery
- Move interrupt enable/disable logic from ath9k to ath9k_hw
- Decouple ISR call from btcoex
- Make the overflow callback optional (to prevent IRQ storms)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:22 -05:00
Lorenzo Bianconi 935d00ccf7 ath9k: fix 5/10MHz channel width initialization on ar9003
Move ath9k_hw_set_rfmode() after ath9k_hw_process_ini() in order to avoid
AR_PHY_MODE register is overwritten with default values by
ar9003_hw_process_ini()

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-18 15:23:04 -05:00
Sujith Manoharan 0c7c2bb4da ath9k: Fix regulatory compliance
Adjusting the CCA registers for maximum permissible
noise floor in ETSI/Japan domains has to be done for
all AR9003 family chips.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-09 15:38:00 -05:00
John W. Linville e08fd975bf Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	drivers/net/wireless/brcm80211/Kconfig
	net/mac80211/util.c
2013-12-06 09:50:45 -05:00
Felix Fietkau af02efb32e ath9k_hw: allow fast channel change when only CHANNEL_HT changes
The CHANNEL_HT flag is insignificant for fast channel change conditions,
since it does not affect any important part of the hardware reset /
channel setup.
Scanning usually runs with HT disabled, so this change will slightly
improve scan time on many chipsets.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-02 14:25:00 -05:00
Felix Fietkau 09d8e315d9 ath9k_hw: fix TSF save/restore around chip reset
A cold reset can be triggered because of DMA stop issues, and this leads
to TSF being cleared on all chipsets. To properly deal with this, always
save the TSF.
Additionally, account for the time it takes to do the actual chip reset,
which can be quite significant. On AR9344 it takes around 4.5 ms.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-02 14:25:00 -05:00
Sujith Manoharan c6fc7e64e1 ath9k: Remove pcieSerDesWrite
This HW config option is always set to true and is not needed.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-02 14:24:55 -05:00
Michal Nazarewicz beae416b1f net: wireless: ath9k: avoid possible NULL pointer dereference
Code in ath9k_hw_set_clockrate function indicates that ah->curchan
(and thus chan local variable) may be NULL.  If that is indeed the
case, IS_CHAN_HT40(chan) check has to be performed only in branch
where chan is not NULL.  Moving the code under already existing
if condition fixes this issue.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-02 13:11:51 -05:00
Lorenzo Bianconi 5bc225acfe ath9k: add noise floor parameter to ath9k_hw_getchan_noise
Add nf parameter to ath9k_hw_getchan_noise() in order to compute NF for EXT
chains with the same scale of noise floor calculated on CTL chains.
ath9k_hw_getchan_noise() will be used in ath_process_fft() for spectral scan on
HT40 channels

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18 14:03:53 -04:00
Felix Fietkau e4744ec786 ath9k_hw: remove references to hw->conf
Accessing it to get the current operating channel is racy and in the way
of further channel handling related changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14 13:39:59 -04:00
Felix Fietkau 6b21fd2027 ath9k_hw: simplify channel flags
There was some duplication between channelFlags and chanmode, as well as
a lot of redundant checks based on the combinations of flags.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14 13:39:58 -04:00
Felix Fietkau 81c507a8b0 ath9k_hw: remove IS_CHAN_OFDM()
The hardware is always configured with OFDM support enabled

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14 13:39:58 -04:00
Felix Fietkau 1a5e63265f ath9k_hw: remove IS_CHAN_B()
Hardware 802.11b-only mode isn't supported by the driver (the device is
configured for 802.11n/g instead). Simplify the code by removing checks
for it.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14 13:39:58 -04:00
Felix Fietkau 8896934c16 ath9k_hw: remove direct accesses to channel mode flags
Use wrappers where available. Simplifies code and helps with further
improvements to the channel data structure

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14 13:39:58 -04:00
Sujith Manoharan 4b9b42bfe0 ath9k: Use bitops for calibration flags
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:47 -04:00
Sujith Manoharan 1e516ca7c9 ath9k: Handle abnormal NAV in AP mode
Beacon transmission would get stuck if the NAV is
an invalid value for some reason. Check and correct
the NAV value in the HW when this happens.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:46 -04:00
Zefir Kurtisi 5e88ba6228 ath9k: replace snprintf() with scnprintf()
Whenever the return value of snprintf() is used to calculate
remaining buffer-space, we wanted to use sncprintf() instead.

Indentation is adapted where possible. Some lines exceed the
line width limit, either they did it already before, or
since they can not be broken reasonably well.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:35 -04:00
Sujith Manoharan d3b371cb03 ath9k: Fix regulatory compliance for AR9462/AR9565
Adjust the CCA values based on the regulatory domain
present in the EEPROM.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:30 -04:00
Sujith Manoharan 27251e0087 ath9k: Enable D3/L1 ASPM fix for AR9462
AR9462 requires this HW fix for ASPM to work properly.
Also, since WARegVal is used only for the AR8003 family,
use AR_SREV_9300_20_OR_LATER.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:27 -04:00
Sujith Manoharan 65c1a4de59 ath9k: Remove unused ANI commands
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:27 -04:00
Sujith Manoharan d1ae25a017 ath9k: Fix ASPM workaround usage
The PCIE Workaround register (AR_WA/0x4004) is used to handle
various hardware quirks. For AR9002 chips, AR_WA_D3_L1_DISABLE
is used to prevent the HW from automatically entering L1 state
when D3 is enforced.

AR_WA_D3_L1_DISABLE has to be enabled for a few AR9280 based
cards, mark them based on their PCI subdevice/subvendor IDs
and enforce it in ar9002_hw_configpcipowersave().

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:06 -04:00
Simon Wunderlich 92367fe7f2 ath9k: always use SIFS times from OFDM for 5/10 MHz
5/10 MHz channels should always use SIFS times as defined in IEEE
802.11-2012 18.4.4 (OFDM PHY characteristics). This makes it compatible
to ath5k, which does the same.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:47 -04:00
Sujith Manoharan 7bdea96a1b ath9k: Remove "shared_chain_lnadiv"
This variable is redundant since we can use
common->bt_ant_diversity to determine if diversity
has to be enabled/disabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:44 -04:00
Sujith Manoharan f85c3371ae ath9k: Print LNA combining mode during init
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:41 -04:00
Sujith Manoharan 70e89a71c8 ath9k: Release the RF bus after setting board values
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-22 16:54:43 -04:00
Sujith Manoharan 5f35c0fae9 ath9k: Use correct channel when switching bands
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-22 16:54:42 -04:00
Sujith Manoharan b840cffede ath9k: Fix FastChannelChange for AR9462/AR9565
Right now, even though these chips support cross-band
FCC, the code is non-functional since we bail out early if
the channelFlags differ. Fix this so that cross-band
FCC works for cards that support this feature.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-22 16:54:42 -04:00
Sujith Manoharan 81dc75b584 ath9k: Add a HW flag for FCC
Fast Channel Change across 2G/5G bands is supported
only by AR9462 and AR9565. Add a HW capability field
to indicate this.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-22 16:54:42 -04:00
Johannes Berg 74e13060f1 ath9k: make rfkill configurable
When the platform doesn't have rfkill support, i.e. nothing
is connected to the rfkill GPIO, there's little value in
polling the GPIO. Add a Kconfig option to allow disabling
the polling in ath9k.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-22 16:54:26 -04:00
Sujith Manoharan 2b5e54e22f ath9k: Add support for AR9462 2.1
Various parts of the HW code are applicable for
both v2.0 and v2.1.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-24 14:44:28 -04:00
Sujith Manoharan 1433531049 ath9k: Merge HWTIMER debug level with BTCOEX
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-18 14:46:44 -04:00
Sujith Manoharan 696df78509 ath9k: Fix noisefloor calibration
The commits,

"ath9k: Fix regression in channelwidth switch at the same channel"
"ath9k: Fix invalid noisefloor reading due to channel update"

attempted to fix noisefloor calibration when a channel switch
happens due to HT20/HT40 bandwidth change. This is causing invalid
readings resulting in messages like:

"ath: phy16: NF[0] (-45) > MAX (-95), correcting to MAX".

This results in an incorrect noise being used initially for reporting
the signal level of received packets, until NF calibration is done
and the history buffer is updated via the ANI timer, which happens
much later.

When a bandwidth change happens, it is appropriate to reset
the internal history data for the channel. Do this correctly in the
reset() routine by checking the "chanmode" variable.

Cc: stable@vger.kernel.org
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-12 15:06:55 -04:00
John W. Linville 861bca265e Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	drivers/net/wireless/ath/ath9k/Kconfig
	net/mac80211/iface.c
2013-06-12 14:35:23 -04:00
Sujith Manoharan e323300d97 ath9k: Simplify ANI initialization
The check "enable_ani" is not required since it is always
set to true and the logic for disabling/enabling ANI via
debugfs is done at a higher layer.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-03 15:55:47 -04:00
Sujith Manoharan 846e438f5f ath9k: Enable WoW only for AR9462
The only card with which WoW has been tested and verified is
AR9462. Do not enable it for all cards since WoW is really quirky
and needs to be tested properly with each chip.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-03 15:55:46 -04:00
Felix Fietkau 86c157b3f8 ath9k_hw: improve performance for AR934x v1.3+
AR934x v1.3 no longer needs the DCU backoff reduction workaround for
preventing rx overruns, but in turn needs the number of usable Tx
buffers to be reduced slightly.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-24 12:50:22 -04:00
Felix Fietkau a37a99102e ath9k_hw: fix host interface reset on AR934x
If a local bus timeout has been detected, the host interface needs to be
reset to clear the errors. AR934x uses a different synchronous interrupt
bit to indicate this, so the check needs to be fixed.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-24 12:50:22 -04:00
Thomas Pedersen 2664d6665f ath9k: use ap style beaconing for mesh
Chun-Yeow and Javier Lopez contributed these changes to
make mesh mode use the more similar AP beaconing mode and
queue parameters. Should improve PS performance, interface
concurrency (AP modes can coexist), and beacon interval
stability.

AR9271 (ath9k_htc) mesh interfaces also need to be in AP
operating mode.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-22 15:05:34 -04:00
Mathias Kretschmer f77f823440 ath9k: apply coverage class on slottime too
According to 802.11-2007 17.3.8.6 (slot time), the slot time should
be increased by 3 us * coverage class. The code only increased the
ack timeout, which is fixed by this patch.

We have noticed in our long shot scenario that we see less collisions
with this patch.

Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
[add standard reference and commit message]
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23 14:14:52 -04:00
Felix Fietkau ecbbed32e7 ath: update hardware mac address with bssid mask
Preparation for updating common->macaddr along with virtual interface
MAC address changes.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-22 15:20:15 -04:00
John W. Linville 655d8e2328 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Conflicts:
	drivers/net/wireless/ath/carl9170/debug.c
	drivers/net/wireless/ath/carl9170/main.c
	net/mac80211/ieee80211_i.h
2013-04-10 14:09:54 -04:00
Zefir Kurtisi 73e4937d48 ath9k: add support for DFS master mode
These are the remaining knobs in ath9k to support DFS:
* mark AR9280 and AR9580 as DFS tested
* synchronize DFS regulatory domain to reg notifyer
* set required RX filter flags for radar detection
* process radar PHY errors at DFS detector
* notify DFS master on radar detection

DFS support requires CONFIG_ATH9K_DFS_CERTIFIED to be set.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-08 15:28:38 -04:00
Karl Beldan 675a0b049a mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chan
Drivers that don't use chanctxes cannot perform VHT association because
they still use a "backward compatibility" pair of {ieee80211_channel,
nl80211_channel_type} in ieee80211_conf and ieee80211_local.

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
[fix kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-25 19:19:35 +01:00
John W. Linville 49c87cd1ea Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	net/nfc/llcp/llcp.c
2013-03-18 09:39:21 -04:00
Sujith Manoharan 15d2b58577 ath9k_hw: Use helper functions to simplify HW reset
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-06 16:28:54 -05:00
Sujith Manoharan fcb9a3de1e ath9k_hw: Remove CHANNEL_CW_INT
This flag is used for indicating channel interference and
we currently do nothing with it, so remove it.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-06 16:28:52 -05:00
John W. Linville 98b7ff9a49 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-03-01 13:52:03 -05:00
Felix Fietkau 3412f2f086 ath9k_hw: improve reset reliability after errors
On many different chips, important aspects of the MAC state are not
fully cleared by a warm reset. This can show up as tx/rx hangs, those
annoying "DMA failed to stop in 10 ms..." messages or other quirks.

On AR933x, the chip can occasionally get stuck in a way that only a
driver unload/reload or a reboot would bring it back to life.

With this patch, a full reset is issued when bringing the chip out of
FULL-SLEEP state (after idle), or if either Rx or Tx was not shut down
properly. This makes the DMA related error messages disappear completely
in my tests on AR933x, and the chip does not get stuck anymore.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-27 14:12:52 -05:00
Joe Perches 14f8dc4953 drivers: net: Remove remaining alloc/OOM messages
alloc failures already get standardized OOM
messages and a dump_stack.

For the affected mallocs around these OOM messages:

Converted kmallocs with multiplies to kmalloc_array.
Converted a kmalloc/memcpy to kmemdup.
Removed now unused stack variables.
Removed unnecessary parentheses.
Neatened alignment.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-08 17:44:39 -05:00
Felix Fietkau f5ffe23aa0 ath9k_hw: remove ath9k_hw_ani_setup and its variables
They are no longer needed for ANI functionality

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22 16:05:31 -05:00
Felix Fietkau 0166b4beec ath9k_hw: make the initval parameter to ath9k_hw_write_array const
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22 16:03:22 -05:00
Felix Fietkau 6aaacd8615 ath9k_hw: fix RF bank initialization
ar900*_init_mode_regs needs to be called before RF banks are allocated,
otherwise the storage size of RF banks isn't known. This patch fixes
a memory overrun that can show up as a crash on unloading the module.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-22 15:58:48 -05:00
Sujith Manoharan b686929c54 ath9k_hw: Enable calibration types in init_cal_settings
Doing this in ath9k_hw_fill_cap_info() is odd and it's
cleaner to do this in the init function for calibration.
Also, setup the supported calibration type in init_cal_settings.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07 15:16:59 -05:00
Felix Fietkau c1b976d2fc ath9k_hw: use the devres API for allocations
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07 15:16:51 -05:00
Sujith Manoharan 0f21ee8d9c ath9k_hw: Add HW cap for PAPRD
Add a HW capability to indicate whether PAPRD is enabled
for the card, since PAPRD could be enabled in the EEPROM, but
disabled in the driver. This makes things clearer.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-10 15:49:50 -05:00
John W. Linville b311749477 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
	drivers/net/wireless/iwlwifi/pcie/tx.c
2012-11-21 12:57:56 -05:00
Sujith Manoharan da8fb123b0 ath9k_hw: Fix regression in device reset
Commit "ath9k: improve suspend/resume reliability" broke ath9k_htc
and bringing up the device would hang indefinitely. Fix this.

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-19 10:23:42 -05:00
Sujith Manoharan b126b02796 ath9k: Remove unused workaround
The workaround for ASPM/L0s is needed only for AR9485 1.0,
which was never sold and is not supported by ath9k.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-16 14:11:14 -05:00
Rajkumar Manoharan cdbe408da7 ath9k_hw: validate MCI stuck after RTC wakeup
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-29 15:30:33 -04:00
Felix Fietkau ceb26a6013 ath9k: improve suspend/resume reliability
Ensure that drv_start() always returns true, as a failing hw start usually
eventually leads to crashes when there's still a station entry present.
Call a power-on reset after a resume and after a hw reset failure to bring
the hardware back to life again.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-10-05 16:26:17 -04:00
David S. Miller a248afdc1b Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
Here is another batch of updates intended for 3.7...

Highlights include an hci_connect re-write in Bluetooth, HCI/LLC
layer separation in NFC, removal of the raw pn544 NFC driver, NFC LLCP
raw sockets support, improved IBSS auth frame handling in mac80211,
full-MAC AP mode notification support in mac80211, a lot of attention
paid to brcmfmac, and the usual level of updates to iwlwifi, ath9k,
mwifiex, and rt2x00, and various other updates.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:30:16 -04:00