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* ath9k_hw: remove a useless WARN_ONFelix Fietkau2013-01-22
| | | | | | | &ah->curchan->ani can never be NULL Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: reduce struct ar5416AniState sizeFelix Fietkau2013-01-22
| | | | | | | | It is kept per-channel, so removing unnecessary (or constant) fields from it can save quite a bit of memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: remove ath9k_hw_ani_setup and its variablesFelix Fietkau2013-01-22
| | | | | | | 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>
* ath9k_hw: make the initval parameter to ath9k_hw_write_array constFelix Fietkau2013-01-22
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: use ath_tx_process_buffer instead of open-coding similar codeFelix Fietkau2013-01-22
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: clean up processing of pending tx frames on resetFelix Fietkau2013-01-22
| | | | | | | | | | | | Dropping packets from aggregation sessions is usually not a good idea, as it might upset the synchronization of the BlockAck receive window of the remote node. The use of the retry_tx parameter to reset/tx-drain functions also seemed a bit arbitrary. This patch removes this parameter altogether and ensures that pending tx frames are not dropped for no good reason. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k: stop rx after txFelix Fietkau2013-01-22
| | | | | | | | | Completing frame transmission can fail if the rx engine is stopped prematurely, as the hw might be waiting for an ACK from the other side. Shutting down tx before rx might make the DMA shutdown more reliable. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net: wireless/rtlwifi: fix uninitialized variable issueCong Ding2013-01-22
| | | | | | | The use of variable packet_beacon might be uninitialized in the three files. Signed-off-by: Cong Ding <dinggnu@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlegacy: don't return zero on failure paths in il4965_pci_probe()Alexey Khoroshilov2013-01-22
| | | | | | | | | | | If hardware is not ready, il4965_pci_probe() breaks off initialization, deallocates all resources, but returns zero. The patch adds -EIO as return value in this case. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwl8k: don't return zero on failure paths in mwl8k_probe[_hw]()Alexey Khoroshilov2013-01-22
| | | | | | | | | | | | | If pci_iomap() fails in mwl8k_probe(), it breaks off initialization, deallocates all resources, but returns zero. There is a similar issue when priv->rxd_ops is NULL in mwl8k_probe_hw(). The patch adds proper error code return values. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: correction in status codes used for association failureAmitkumar Karwar2013-01-22
| | | | | | | | | | | | When AP responds with appropriate status code, we forward that code correctly to cfg80211. But sometimes when there is no response from AP, our firmware uses proprietary status codes. We will map authentication timeout to WLAN_STATUS_AUTH_TIMEOUT and other proprietary codes to WLAN_STATUS_UNSPECIFIED_FAILURE. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* rt2x00: Improve TX status handling for BlockAckReq framesHelmut Schaa2013-01-22
| | | | | | | | | | | | | | | | | | | | | | | | Since rt2800 hardware isn't capable of reporting the TX status of BlockAckReq frames implement the TX status handling of BARs in rt2x00lib. We keep track of all BARs that are send out and try to match incoming BAs to the appropriate BARs. This allows us to report a more or less accurate TX status for BAR frames which in turn improves BA session stability. This is loosley based on Christian Lamparter's patch for carl9170 "carl9170: fix HT peer BA session corruption". We have to walk the list of pending BARs for every rx'red BA even though most BAs don't belong to any of these BARs as they are just acknowledging an AMPDU. To keep that overhead low use RCU which allows us to walk the list of pending BARs without the need to acquire a lock. This however requires us to _copy_ relevant information from the BAR (RA, TA, control field, start sequence number) into our BAR list entry. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Tested-by: Andreas Hartmann <andihartmann@01019freenet.de> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* prism54: bug in getting auth typeDan Carpenter2013-01-22
| | | | | | | | There is a missing break statement so SHARED_KEY authentication doesn't work. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: N-PHY: fix gain in b43_nphy_get_gain_ctl_workaround_ent()Dan Carpenter2013-01-22
| | | | | | | | | There were no break statements in this switch statement so everything used the default settings. Per Walter Harms's suggestion, I've replaced the switch statement and done a little cleanup. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* drivers/net/wireless: need consider the not '\0' terminated string.Chen Gang2013-01-22
| | | | | | | | | | | | | | | | | | | | in ray_cs.c: the a_current_ess_id is "Null terminated unless ESSID_SIZE long" so we need buffer it with '\0' firstly, before using strlen or %s. additional information: in drivers/net/wireless/rayctl.h: "NULL terminated unless 32 long" is a comment at line 616, 664 ESSID_SIZE is 32, at line 190 in include/uapi/linux/wireless.h: IW_ESSID_MAX_SIZE is also 32 in drivers/net/wireless/ray_cs.c: use strncpy for it, without '\0' terminated, at line 639 use memcpy for it, assume not '\0' terminated in line 1092..1097 buffer it with '\0' firstly, before using %s, in line 2576, 2598..2600 Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ath9k_hw: fix RF bank initializationFelix Fietkau2013-01-22
| | | | | | | | | 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>
* Merge branch 'for-john' of ↵John W. Linville2013-01-22
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
| * wireless: make the reg_notifier() voidLuis R. Rodriguez2013-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reg_notifier()'s return value need not be checked as it is only supposed to do post regulatory work and that should never fail. Any behaviour to regulatory that needs to be considered before cfg80211 does work to a driver should be specified by using the already existing flags, the reg_notifier() just does post processing should it find it needs to. Also make lbs_reg_notifier static. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> [move lbs_reg_notifier to not break compile] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge branch 'for-john' of ↵John W. Linville2013-01-22
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
| * | iwlwifi: improve the reports in TX pathEmmanuel Grumbach2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | Also when things go wrong (queues don't get emtpy), try to get some data from the HW. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | iwlwifi: enable communication with WoWLAN firmwareJohannes Berg2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On resuming, the opmode may have to be able to talk to the WoWLAN/D3 firmware in order to query it about its status and wakeup reasons. To do that, the opmode has to call the new d3_resume() transport API which will set up the device for command communcation. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | iwlwifi: simplify scheduler memory clearingJohannes Berg2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Writing 130 dwords into the device one by one is rather inefficient, every one needs to lock, grab NIC access (a few register reads/writes) and then write the address and data registers. Use the new memory clearing function to make this easier and faster. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | iwlwifi: allow to zero SRAMEmmanuel Grumbach2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | Sending a NULL pointer to iwl_trans_write_mem allows now to zero SRAM. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | iwlwifi: don't enable all interrupts on resumingJohannes Berg2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling the RF-kill interrupt is sufficient for getting RF-kill notifications, and no other interrupt is needed as the device isn't functional when suspended and will be restarted/reconfigured when mac80211 resumes it later. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | iwlwifi: don't memset scalar valuesJohannes Berg2013-01-16
| | | | | | | | | | | | | | | | | | | | | | | | The dma_addr_t type is a scalar value, so it should just be assigned, not memset. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | ath9k_hw: ar9002_hw_spectral_scan_config() can be staticFengguang Wu2013-01-14
| | | | | | | | | | | | | | | Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: add tx gain tables for newer devicesFelix Fietkau2013-01-11
| | | | | | | | | | | | | | | | | | | | | | | | Improves stability on affected devices and also fixes the Tx IQ calibration related regression on some AR9340 devices such as the TP-Link TL-WDR4300. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k: fix spectral scan endless mode on AR9002Simon Wunderlich2013-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | There was a copy+paste error in ar9002 for the endless spectral mode, fix that. 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>
* | | mac80211_hwsim: fix beacon timestamp and mactimeThomas Pedersen2013-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set the beacon timestamp once during "transmission" so the monitor interface also gets a timestamped beacon. Also use a common base between TX timestamp and RX mactime. This eliminates "TX" path delay, which shows up as a constant error in Toffset. Get the global TSF once before iterating over all RX HWs, so they all set a mactime with the same time base. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k: add spectral scan featureSimon Wunderlich2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds the spectral scan feature for ath9k. AR92xx and AR93xx chips are supported for now. The spectral scan is triggered by configuring a mode through a debugfs control file. Samples can be gathered via another relay debugfs file. Essentially, to try it out: echo chanscan > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl iw dev wlan0 scan cat /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan0 > samples echo disable > /sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan_ctl This feature is still experimental. The special "chanscan" mode is used to perform spectral scan while mac80211 is scanning for channels. To allow this, sw_scan_start/complete() ops have been added. The patch contains code snippets and information from Zefir Kurtisi and information provided by Adrian Chadd and Felix Fietkau. 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>
* | | ath9k_hw: Fix radio programming for AR9550Sujith Manoharan2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For AR9550, program the synth value based on the ref. clock. The logic for AR9550 is similar to AR9330, but keep the code separate since changes for AR9330 are required - which would be done later. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Add TempCompensation feature for AR9550Sujith Manoharan2013-01-09
| | | | | | | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Update initvals for QCA955xSujith Manoharan2013-01-09
| | | | | | | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwl8k: Wake up queues in mwl8k_startNishant Sarmukadam2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | If queues are stopped in mwl8k_stop, these should be started in mwl8k_start Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwl8k: Delete ampdu streams with state AMPDU_STREAM_NEW in sta removeYogesh Ashok Powar2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a station deauths, we do not delete the streams with state AMPDU_STREAM_NEW and these remain created forever. Fix this issue by removing such streams in the driver Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwl8k: Disable tx_wait completionNishant Sarmukadam2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whenever TX ring is drained, priv->tx_wait still points to a valid completion. Making sure that it points to NULL before returning from the mwl8k_tx_wait_empty check. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Use helper routines to simplify ar9003_hw_init_cal()Sujith Manoharan2013-01-09
| | | | | | | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Fix MCI init for AGC calibrationSujith Manoharan2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When AGC calibration is to be done, a GPM message with the payload, MCI_GPM_WLAN_CAL_REQ has to be sent. Currently this falls within the IQ-CAL code block which is incorrect. Fix this by using a separate variable to decide when IQ-CAL is to be done separately and call ar9003_mci_init_cal_req correctly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Do not enable IQ-CAL for half/quarter ratesSujith Manoharan2013-01-09
| | | | | | | | | | | | | | | | | | | | | | | | IQ calibration doesn't complete and times out for half/quarter rates, so skip it correctly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-nextJohn W. Linville2013-01-09
|\ \ \ | | |/ | |/|
| * | mac80211_hwsim: fix beacon timingThomas Pedersen2013-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | A beacon period starts at TSF time 0. Spoof this by rounding the starting beacon time to a multiple of the beacon interval, and keep TBTT aligned on TSF adjustment. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | mac80211_hwsim: hrtimer beaconThomas Pedersen2013-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For testing various timing-sensitive protocols (power save, MBCA, etc.), a beacon accuracy of jiffies is not sufficient. A tasklet_hrtimer is used for the beacon since it runs the callback in soft-IRQ context with hrtimer resolution. Also handle BSS_CHANGED_BEACON_ENABLED for hwsim. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [simplify timer container_of] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | mac80211_hwsim: fix tsf adjustmentThomas Pedersen2013-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make hwsim TSF offset adjustments cumulative and relative to the fake PHY TSF. Now adding 1000us, then adding -1000us doesn't result in a tsf_offset of -1000. Also the beacon timestamp can now correctly be expressed as (tsf + data->tsf_offset), which will be done in a later patch. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | mwifiex: use map/unmap APIs in TX and RX to reduce memcpyAvinash Patil2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is an enhacement to mwifiex_pcie driver to use map/unmap PCI memory APIs. This reduces one memcpy each in TX path and RX path, and enhances throughput. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwifiex: flush TX ring for PCIe after disconnect or bss stopAvinash Patil2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds handler to clean PCIe TX rings after disconnect or bss stop is called for PCIe based mwifiex driver. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwifiex: use pci_alloc/free_consistent APIs for PCIeAvinash Patil2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses pci_alloc_consistent and pci_free_consistent APIs for mwifiex_pcie driver. Consistent DMA memory is allocated for TX, RX and event rings. Command buffer and command response buffer also uses map/unmap memory APIs to download commands and get command responses. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwifiex: add init_fw_port handler for PCIe interfaceAvinash Patil2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for init_fw_port handler for PCIe interface, which resets RXBD read pointer for PCIe. This fixes issue where RX doesn't work until some TX from driver happens. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwifiex: access interrupt status only while holding lockAvinash Patil2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a bug for few instances where PCIe interrupt status variable is accessed without holding spin lock. This can result into missing interrupts. Fix this by copying interrupt status to a local variable and then using it for calling specific routine. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | ath9k_hw: Fix calibration for AR9340Sujith Manoharan2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TX_IQ_ON_AGC_CAL should not be enabled for AR9340. TX-IQ calibration is run as part of AGC calibration only for AR9485, AR9462 and AR9565. For the others (AR9300, AR9330, AR9340), TX-IQ cal is done independent of AGC-cal. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | mwl8k: bump firmware API to 3Yogesh Ashok Powar2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New firmware is required to support a) Add support for additional ampdu streams b) Handle corresponding watchdog events to destroy ampdu streams Bumping firmware API version by one. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>