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2012-04-10ath: Add and use pr_fmt, convert printks to pr_<level>Joe Perches26-65/+103
Use a more current logging style. Make sure all output is prefixed appropriately. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller7-97/+55
2012-04-10Revert "ath9k: fix going to full-sleep on PS idle"Sujith Manoharan1-5/+3
This reverts commit c1afdaff90538ef085b756454f12b29575411214. Users have reported connection failures in 3.3.1 and suspend/resume failures in 3.4-rcX. Revert this commit for now - PS IDLE can be fixed in a clean manner later on. Cc: stable@vger.kernel.org Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-09ath9k_hw: Update rx gain initval to improve rx sensitivityRajkumar Manoharan1-5/+5
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-09ath9k: recover ar9380 chips from rare stuck stateRajkumar Manoharan6-4/+126
In the experiment with Azimuth ADEPT-n testbed where the APs transmit power was reduced to 25% and the signal strength was futher attenuated by 20dB and induced a path loss of ~7dB, the station was reporting beacon losses and the following issue were observed. * rx clear is stuck at low for more than 300ms * dcu chain and complete state is stuck at one of the hang signature This patch triggers the hang detection logic that recovers the chip from any of the above conditions. As the issue was originally reported in ChromeOs with AR9382 chips, this detection logic is enabled only for AR9380/2 chips. Cc: Paul Stewart <pstew@google.com> Reported-by: Gary Morain <gmorain@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-09ath9k_hw: improve ANI processing and rx desensitizing parametersRajkumar Manoharan4-115/+27
This patch improves ANI operations by switching among the immunity levels based on PHY errors and beacon rssi which will adjust receiver desensitizing parameters. The changes are * Configure the Weak Signal Detection based on current immunity value. * At highest OFDM immunity level poor performance was observed with strong interference. By tuning the FIR step and spur immunity levels and not changing any weak signal detection thresholds at any level helped to improve the performance. * ANI took long time to recover back to lower immunity levels on heavy data load. As the listen time got reset to zero before reaching to the 5x of aniperiod, the immunity level is not lowering back even without any interference. This patch fix that. Cc: Paul Stewart <pstew@google.com> Cc: Susinder Gulasekaran <susinder@qca.qualcomm.com> Signed-off-by: Suresh Chandrasekaran <csuresh@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-09ath6kl: Fix 4-way handshake failure in AP and P2P GO modeVasanthakumar Thiagarajan4-0/+107
RSN capability field of RSN IE which is generated (which is what really advertised in beacon/probe response) differs from the one generated in wpa_supplicant. This inconsistency in rsn IE results in 4-way handshake failure. To fix this, configure rsn capability used in wpa_supplicant in firmware using a new wmi command, WMI_SET_IE_CMDID. There is a bit (ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE) in fw_capabilities to advertise this support to driver. Signed-off-by: Subramania Sharma <sharmat@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09ath6kl: Configure htcap in fw based on the channel type in AP modeVasanthakumar Thiagarajan5-21/+116
This patch disables HT in start_ap if the type of the channel on which the AP mode is going to be operating is non-HT. HT is enabled with default ht cap setting if the operating channel is going to be 11n. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09ath6kl: Don't advertise HT40 support in 2.4 GhzVasanthakumar Thiagarajan1-2/+3
HT40 is not supported in 2.4Ghz. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-09ath6kl: Fix target assert in p2p bringup with multi vifVasanthakumar Thiagarajan2-9/+47
Using interface 0 for p2p causes target assert. This is because interface 0 is always initialized to non-p2p operations. Fix this issue by initializing all the interfaces for p2p when fw is capable of dynamic interface switching. When fw is not capable of dynamic switching, make sure p2p is not brought up on interface which is not initialized for this purpose. Reported-by: Naveen Singh navesing@qca.qualcomm.com Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-05Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds7-97/+55
Merge batch of fixes from Andrew Morton: "The simple_open() cleanup was held back while I wanted for laggards to merge things. I still need to send a few checkpoint/restore patches. I've been wobbly about merging them because I'm wobbly about the overall prospects for success of the project. But after speaking with Pavel at the LSF conference, it sounds like they're further toward completion than I feared - apparently davem is at the "has stopped complaining" stage regarding the net changes. So I need to go back and re-review those patchs and their (lengthy) discussion." * emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches) memcg swap: use mem_cgroup_uncharge_swap fix backlight: add driver for DA9052/53 PMIC v1 C6X: use set_current_blocked() and block_sigmask() MAINTAINERS: add entry for sparse checker MAINTAINERS: fix REMOTEPROC F: typo alpha: use set_current_blocked() and block_sigmask() simple_open: automatically convert to simple_open() scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() libfs: add simple_open() hugetlbfs: remove unregister_filesystem() when initializing module drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback fs/xattr.c:setxattr(): improve handling of allocation failures fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed fs/xattr.c: suppress page allocation failure warnings from sys_listxattr() sysrq: use SEND_SIG_FORCED instead of force_sig() proc: fix mount -t proc -o AAA
2012-04-05simple_open: automatically convert to simple_open()Stephen Boyd7-97/+55
Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: <smpl> @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; </smpl> [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-04ath6kl: Support net_stats.multicastVasanthakumar Thiagarajan1-1/+2
net_stats.multicast is updated with the count of received multicast packets. kvalo: indentation changes Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-03ath6kl: Fix scan related issue on suspend-resumeVivek Natarajan1-0/+4
When a scan request is pending while going to suspend, any new scan request after resume will fail. So, cancel all scan requests in all the vifs before moving to suspend state. Signed-off-by: PingYang Zhang <pingzhan@qca.qualcomm.com> Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-03ath6kl: Use vmalloc instead of kmalloc for fwVivek Natarajan2-2/+5
Sometimes it has been observed that allocating a contiguous memory of more than 100K fails with kmalloc. This has been modified to use vmalloc instead. Signed-off-by: PingYang Zhang <pingzhan@qca.qualcomm.com> Signed-off-by: Vivek Natarajan <nataraja@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-04-02ath6kl: Stop using NLA_PUT*().David S. Miller1-2/+3
These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-28ath9k: Use HW HT capabilites properlySujith Manoharan1-2/+2
The commit "ath9k: Remove aggregation flags" changed how nodes were being initialized. Use the HW HT cap bits to initialize/de-initialize nodes, else we would be accessing an uninitialized entry during a suspend/resume cycle, resulting in a panic. Reported-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-28ath6kl: Set background scan period.Bala Shanmugam1-0/+13
After connect command, send scan params WMI command to set background scan period. If period value is zero send 0xffff as bg scan period to disable bg scan. Set default bg scan period to be 60 seconds if not specified. This patch depends on below patch cfg80211: Add background scan period attribute. kvalo: fix open parenthesis alignment Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-28ath6kl: Store scan request info in-advance before sending SCAN requestRaja Mani1-3/+5
In current code, Scan request info is recorded in vif->scan_req after sending SCAN request to the firmware in ath6kl_cfg80211_scan(). In some corner cases, firmware sends SCAN_COMPLETE event immediately when it receives SCAN request, which internally executes scan complete event handler ath6kl_cfg80211_scan_complete_event() first. So, Scan completion handler will a get a chance to executed even before storing scan request info in ath6kl_cfg80211_scan(). Scan completion handler never report SCAN_COMPLETE event to cfg80211 if scan request info(vif->scan_req) is NULL. This leads to scan failure issue ("Device or resource busy error") during next SCAN request from the user space. This patch ensures that scan request info is stored before sending SCAN request. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath9k: fix a memory leak in ath_rx_tasklet()Eric Dumazet1-2/+2
commit 0d95521ea7 (ath9k: use split rx buffers to get rid of order-1 skb allocations) added in memory leak in error path. sc->rx.frag should be cleared after the pskb_expand_head() call, or else we jump to requeue_drop_frag and leak an skb. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Felix Fietkau <nbd@openwrt.org> Cc: John W. Linville <linville@tuxdriver.com> Cc: Trond Wuellner <trond@chromium.org> Cc: Grant Grundler <grundler@chromium.org> Cc: Paul Stewart <pstew@chromium.org> Cc: David Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath9k: reduce listen time periodRajkumar Manoharan1-1/+1
When we have downlink traffic alone and the station is going thru bgscan, the client is out of operating channel for around 1000ms which is too long. The mac80211 decides when to switch back to oper channel based on tx queue, bad latency and listen time. As the station does not have tx traffic, the bgscan can easily affect downlink throughput. By reducing the listen time, it helps the associated AP to retain the downstream rate. Cc: Paul Stewart <pstew@google.com> Tested-by: Gary Morain <gmorain@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath9k: fix max noise floor thresholdRajkumar Manoharan1-3/+2
Currently the maximum noise floor limit is set as too high (-60dB). The assumption of having a higher threshold limit is that it would help de-sensitize the receiver (reduce phy errors) from continuous interference. But when we have a bursty interference where there are collisions and then free air time and if the receiver is desensitized too much, it will miss the normal packets too. Lets make use of chips specific min, nom and max limits always. This patch helps to improve the connection stability in congested networks. Cc: stable@vger.kernel.org Cc: Paul Stewart <pstew@google.com> Tested-by: Gary Morain <gmorain@google.com> Signed-off-by: Madhan Jaganathan <madhanj@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-26ath6kl: add full USB supportKalle Valo2-4/+782
Now, with HTC pipe, it's possible to fully support USB version of AR6004. Based on code by Kevin Fang. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: Add HTC pipe implementationKalle Valo7-0/+1808
This is needed for USB. Based on code by Kevin Fang. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: add htc opsKalle Valo10-55/+219
In preparation for adding HTC pipe implementation add htc-ops.h to make it possible dynamically choose which HTC type is used. Needed for full USB support. Based on the code by Ray Chen <raychen@qca.qualcomm.com>. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Ray Chen <raychen@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: remove void pointer from ath6kl_credit_setup()Kalle Valo2-3/+3
Void pointers are bad. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: add rx data padding supportKalle Valo2-0/+10
Needed when using USB. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: add pointer to the skb in htc_packetKalle Valo2-0/+13
Needed by the USB code. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: add tx_comp_multi() to struct htc_ep_callbacksKalle Valo2-0/+2
It's also needed by the USB code. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: Add tx_complete() to struct htc_ep_callbacksKalle Valo4-4/+7
This is needed by the USB code. Also while at it replace one void pointer with a properly typed pointer. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: set ram reserved size only for ar6003Kalle Valo1-10/+12
Ram reserved size is not needed with ar6004. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: Configure inactivity timeout in fwVasanthakumar Thiagarajan4-0/+41
Configure the inactivity timeout passed in start_ap() to firmware. This capability is advertised only when fw supports it, there is a new bit (ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT) in firmware capability ie for driver to learn fw's capability. After the fw finds out the station is inactive, it will probe the station with null func frames. By default, the timeout is 10 secs. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26Merge remote branch 'wireless-next/master' into ath6kl-nextKalle Valo34-747/+344
2012-03-26ath6kl: Optimize target power in deep sleep suspendRaja Mani1-17/+81
Adding below steps helps to get good power numbers in deep sleep suspend path, * Disable WOW mode. * Flush data packets and wait for all control packets. to be cleared in TX path before deep sleep suspend. * Set host sleep mode to SLEEP. Below steps are added to perform the recovery action while the system resume from deep sleep, * Set host sleep mode to AWAKE. * Reset scan parameters to default value. In addition, Debug prints are added to track deep sleep suspend/resume state. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: Isolate host sleep mode config part from ath6kl_wow_suspendRaja Mani1-31/+52
The piece of code used in ath6kk_wow_suspend function to configure the host sleep mode is needed in deep sleep case also. Moving that portion to a separate function called ath6kl_update_host_mode() would be helpful to avoid the duplication of the same code in deep sleep path. There is no functional change. kvalo: move inline functions to cfg80211.c and fix a long line Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-26ath6kl: Dump htc header when invalid Rx frame length is detectedVasanthakumar Thiagarajan1-1/+3
Dump htc header along with the warning message when the request to Rx with invalid frame length is detected. kvalo: fix open parenthesis alignment Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-21ath6kl: abort normal scan when scheduled scan is startedKalle Valo1-0/+2
If the device disconnects from an AP when it is in suspending state. You will get the following message from wpa_supplicant after waking the device up and sending scan request: "Scan trigger failed: ret=-16 (Device or resource busy)" Fix the issue by sending a scan complete event before starting scheduled scan. kvalo: cosmetic changes to commit log Signed-off-by: Isaac.li <shonmou@gmail.com> Tested-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-20ath6kl: Add __printf verification to ath6kl_printkJoe Perches1-1/+2
Make sure printf formats and arguments match. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-20ath6kl: Add ARP offload related statistic info in tgt_statsRaja Mani2-0/+10
Firmware reports the below ARP offload related information while sending the target statistic event to the host. * Number of ARP packets received. * Number of packets matched with the device IP addr. * Number of ARP response packet sent to the remote. This patch adds the additional debug prints in debugfs entry tgt_stats. It will be useful to know the ARP offload execution status. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-20ath6kl: add debug log for AP MLME operationsAarthi Thiruvengadam1-0/+3
This is useful during debugging to check if disconnect commands were issued by the host. Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-20ath6kl: handle probe response from P2P device in P2P GO modeAarthi Thiruvengadam2-4/+21
When the device is in P2P GO mode and in listen state, the correct behavior is to see two different probe response frames - one from P2P device and the other from GO. wpa_supplicant uses the same mechanism to send the frame in both cases (ath6kl_mgmt_tx). For GO probe response, ath6kl needs to call ath6kl_send_go_probe_resp (this will add only WSC/P2P IEs and the rest of the IEs are filled in by the firmware). That was done based on the nw_type == AP_NETWORK which would work if P2P Device role were in a separate netdev. When P2P Device and GO use the same netdev, ath6kl needs to use the special GO probe response case only if SSID is longer than P2P wildcard SSID. Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2012-03-16Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville50-1260/+1452
Conflicts: drivers/net/wireless/ath/ath9k/hw.c
2012-03-15ath9k_hw: remove unused initvalsFelix Fietkau1-302/+0
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: inline AR9271 1.0 INI overridesFelix Fietkau5-13/+6
Makes them more readable and reduces code size Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove iniModes_*_tx_gain_9271Felix Fietkau3-26/+19
Program tx gain through iniModesTxGain like on AR9287 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: clean up iniModesAdditionalFelix Fietkau5-30/+22
use iniModesFastClock for 5 ghz fast clock specific settings, and iniAdditional for clock/chip specific initval overrides Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: fix AR9380 register settings for channel 14Felix Fietkau1-0/+3
Program the ah->ini_japan2484 INI values which were left out by accident Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: fold ar9002_hw_cck_chan14_spread into mode regs initializationFelix Fietkau3-9/+0
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: remove iniCommon_*_cck_fir_coeff_9271Felix Fietkau2-8/+0
These arrays are unused Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k_hw: clean up ath9k_hw_setuprxdescFelix Fietkau1-4/+1
The ATH9K_HW_CAP_AUTOSLEEP check is bogus, the rx status area needs to be cleared on all non-EDMA PCI/AHB based chipsets anyway. Limit the memset to the rx status area to improve performance. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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