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path: root/drivers/net/wireless
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2015-01-15ath9k: add TPC to TX path for AR9002 based chipsLorenzo Bianconi
Add TPC capability to TX descriptor path for AR9002 based chips. Scale per-packet TX power according to eeprom power bias, power adjustments for HT40 mode and open loop CCK rates. Cap per-packet TX power according to TX power per-rate tables Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath9k: add power per-rate tables for AR9002 chipsLorenzo Bianconi
Add TX power per-rate tables for MIMO/legacy modes for AR9002 based chips in order to cap the maximum TX power value per-rate in the TX descriptor path. Add TX power adjustments for HT40 mode, open loop CCK rates and eeprom power bias for AR9280 and later chips Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15adm8211: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entriesArend van Spriel
Use the helper to get rid of the file operations per debugfs file. The device driver data contains struct ieee80211_hw pointer and the struct ath9k_softc pointer is assigned to ieee80211_hw::priv so it can be accessed in the seq_file read operation. Cc: ath9k-devel@lists.ath9k.org Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: relax spinlocks in rx reorderVladimir Kondratiev
In the Rx reorder mechanism, nothing is done in the interrupt context, so there is no need to use 'irq' flavors of spinlock. Rx done in NAPI context (tasklet), other manipulations - in the thread context. Having interrupts enabled makes it better for the OS in general. Besides, if enslaved under bonding, bridge or team driver, Rx won't work with interrupts disabled. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: workaround for BACK establishment raceVladimir Kondratiev
When establishing BACK, WMI may be handled earlier then Rx, in this case late Rx will be mis-handled. Detect early Rx and pass it to the stack, bypass reordering Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: Tx/Rx descriptors documentationVladimir Kondratiev
Sync documentation for the Tx/Rx descriptors with the firmware/hardware documentation. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: fix reordering for MCASTVladimir Kondratiev
In the reordering block, Ethernet DA was checked for MCAST, this is wrong. Check instead MCAST indication from 802.11 MAC header. Hardware saves this into Rx descriptor. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: RX high threshold interrupt configurationVladimir Kondratiev
Rx high threshold interrupt is reported by the hardware in case when number of not utilized by the HW descriptors in the Rx ring becomes low. Introduce module parameter for RX high threshold. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: add advanced interrupt moderationVladimir Kondratiev
Add advanced interrupt moderation support available since "Sparrow B0". Legacy interrupt moderation used only one counter to moderate tx, rx, and misc interrupts. Advanced interrupt moderation bypasses misc, and handles separately tx and rx interrupts. In addition it has two timers for each interrupt type. Max burst duration timer which defines how long to postpone interrupt after first event (receive event for rx and tx complete event for tx), and interframe timeout which defines how to determine the end of the burst and issue interrupt even if the first timer still pending. Capabilities flags in wil_priv is set on initialization according to HW. The rest of the code checks for advanced interrupt capability bit in capabilities flags field. Debugfs is split accordingly: "legacy" interrupt moderation remains unchanged, new debugs files added for advanced interrupt moderation support. Module params are aligned to support advanced interrupt moderation (tx & rx). When not available (for legacy interrupt moderation) will use only rx configuration; Tx configuration will be ignored in this case. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: use HW capabilities mask in resetVladimir Kondratiev
Use the proper reset follow based on HW capabilities detection instead of chip ID. Remove old hw ID mechanism which was used only for reset flow. Remove support for Marlon A0. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: detect HW capabilitiesVladimir Kondratiev
Read relevant information (HW ID for now) once on init and set capabilities accordingly. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: rework debugfs for BACKVladimir Kondratiev
Enable more flexible control over block ack: - allow addba for any Tx vring - allow to specify block ack timeout - allow to delba for Tx or Rx side of any agreement; with reason Renamed "addba" entry to "back"; it prints short help when read; write: - "add <ringid> <agg_size> <timeout>" to trigger ADDBA If missing, <timeout> defaults to 0 - "del_tx <ringid> <reason>" to trigger DELBA for Tx side - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side If missing, <reason> set to "STA_LEAVING" (36) Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: fix Tx VRING for STA modeVladimir Kondratiev
In STA mode, all Tx should be directed to the same VRING towards the AP. Thus, look up for the 1-st eligible VRING and use it. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: use bitmap API for "status"Vladimir Kondratiev
wil->status used as bitmap; use DECLARE_BITMAP for it. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: Increase number of associated stationsVladimir Kondratiev
Change default to support maximum number of associated stations to an AP 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@codeaurora.org>
2015-01-15wil6210: consider SNAP header in MTU calculationsVladimir Kondratiev
When encapsulating 802.3 frames into the 802.11 ones, 8-byte SNAP header added to save ethtype. SNAP is part of the frame body, thus should be counted in MSDU. So, MTU = MSDU - SNAP Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: fix max. MPDU sizeVladimir Kondratiev
When configuring Tx/Rx VRING's, driver need to specify max. MPDU size It should take into account all overhead introduced by 802.3->208.11 transformation. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: delba for responderVladimir Kondratiev
Implement delba flow for the responder (Rx) side Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: control AMSDU on Tx side of Block AckVladimir Kondratiev
When establishing Block Ack as originator (Tx), control AMSDU flag when sending ADDBA and update status upon establishment flow completion. To be used in AMSDU flows Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: improve debugfs for VRINGVladimir Kondratiev
When printing VRING on debugfs (file "vrings"), software head & tail indexes were printed in decimal format while hardware tail in hexadecimal only. It is not comfortable to compare indexes in different formats; on the other hand, hexadecimal output useful to see hardware glitches. To serve all purposes, print hardware tail in both decimal and hexadecimal formats. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: fix disconnect 1 STA in APVladimir Kondratiev
When disconnecting single STA in AP, it might be that STA in question is already disconnected. In this case, need to do nothing. Previously, it was mis-interpreted as "disconnect all" Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: improve debugfs for reorder bufferVladimir Kondratiev
When printing debugfs for the reorder buffer, include BACK parameters: window size and timeout Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: allow to configure ADDBA requestVladimir Kondratiev
For manual ADDBA configuration, allow to set desired window size or disable automatic mechanism. Introduce module parameter (int) agg_wsize. It can be changed on run time, will be taken into account on the next connect. Interpretation: - <0 - disable automatic ADDBA; intended for manual testing through debugfs - 0 - use automatically calculated window size - >0 - use this for window size. Clipped by maximum supported by the hardware with current environment. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: simple ADDBA on originator (Tx) sideVladimir Kondratiev
Upon Tx vring creation, initiate BACK establishment with maximum possible window size. When establishing secure connection, there is EAPOL data exchange between connection itself and "data port open", where security is done and non-EAPOL data may be transferred. It is better to send EAPOL frames using normal ACK because of firmware considerations. send ADDBA only is 2 conditions met: - data port open for the corresponded STA - vring created Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15wil6210: ADDBA/DELBA flowsVladimir Kondratiev
Introduce BACK establishment procedures; decision logic is not implemented yet; debugfs entry 'addba' used to manually trigger addba/delba for ringid 0. debugfs usage: to establish BACK with agg_wsize 16: echo 16 > /sys/kernel/debug/ieee80211/phy0/wil6210/addba to delete BACK: echo 0 > /sys/kernel/debug/ieee80211/phy0/wil6210/addba to change agg_wsize, one need to delete BACK and establish it anew ADDBA flow for: - originator Tx side (initiator) sends WMI_VRING_BA_EN_CMDID providing agg_wsize and timeout parameters. Eventually, it gets event confirming BACK agreement - WMI_BA_STATUS_EVENTID with negotiated parameters. On this event, update Tx vring data (struct vring_tx_data) and display BACK parameters on debugfs - recipient Rx side (recipient) firmware informs driver about ADDBA with WMI_RCP_ADDBA_REQ_EVENTID, driver process it in service work queue wq_service. It adjusts parameters and sends response with WMI_RCP_ADDBA_RESP_CMDID, and final confirmation provided by firmware with WMI_ADDBA_RESP_SENT_EVENTID. In case of success, driver updates Rx BACK reorder buffer. policy for BACK parameters: - aggregation size (agg_wsize * MPDUsize)) to not exceed 64Kbytes DELBA flow for: - originator driver decides to terminate BACK, it sends WMI_VRING_BA_DIS_CMDID and updates struct vring_tx_data associated with vring; ignore WMI_DELBA_EVENTID. - recipient firmware informs driver with WMI_DELBA_EVENTID, driver deletes correspondent reorder buffer ADDBA request processing requires sending WMI command, therefore it is processed in work queue context. Same work queue used as for connect, it get renamed to wq_service Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath9k: Add QCA956x HW supportMiaoqing Pan
Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath9k: Fix register definitions for QCA956xMiaoqing Pan
Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath9k: Add initvals for QCA956xMiaoqing Pan
Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15ath9k: Add HW IDs for QCA956xMiaoqing Pan
Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-01-15Merge tag 'iwlwifi-for-kalle-2015-01-13' of ↵Kalle Valo
https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes * A fix for scan that fixes a firmware assertion * A fix that improves roaming behavior. Same fix has been tested for a while in iwldvm. This is a bit of a work around, but the real fix should be in mac80211 and will come later. * A fix for BARs that avoids a WARNING.
2015-01-15ath10k: fix hwmon temperature input unitsRajkumar Manoharan
To be compliant with the hwmon interface the unit needs to be millidegree Celsius. Fix that. Reported-by: Matthias Kaehlcke <mka@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: document switch case fall-through in __ath10k_scan_finishJohn W. Linville
Add a comment for indicating that the ATH10K_SCAN_RUNNING case falls through to the ATH10K_SCAN_ABORTING case in __ath10k_scan_finish. This will document that the lack of a break is intentional. Coverity: CID 1260017 Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: prevent fw reg dump spamMichal Kazior
Originally the explicit fw register dump was added to wait_for_target_init because interrupts are masked early during power_up. Due to some changes in power_up/reset sequences sometimes when fw crashed ath10k would print the dump more than once via hif_stop -> warm_reset -> wait_for_target_init, possibly with different values each. Prevent this by doing the explicit fw register dump only during power_up instead of wait_for_target_init. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: fix duration calculation for quiet paramRajkumar Manoharan
The duty cycle (% of quiet duration) is used to put the device in quiet mode for the given period. Currently the quiet duration is wrongly calculated which results in not enabling quiet mode. Fix the calculation as below duration = (period * duty cycle) / 100 Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: implement support for ap beacon offloadingMichal Kazior
New firmware revisions support beacon and probe response templates instead. This means SWBA events are no longer delivered for these firmware revisions. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: implement p2p bcn ie commandMichal Kazior
Along beacon template host is expected to setup p2p information elements as well. Implement wmi interface for it. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: implement prb tmpl wmi commandMichal Kazior
New firmware revisions with beacon templates need probe templates as well because they don't forward probe requests to host at all. This is required for new firmware to work with direct probe requests (notably required by hidden ssid AP). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: implement beacon template commandMichal Kazior
New firmware revisions may support setting beacon template. Implement wmi interface for it. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15ath10k: implement new beacon tx status eventMichal Kazior
This event is delivered to host by firmware if it supports beacon templates only. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/xen-netfront.c Minor overlapping changes in xen-netfront.c, mostly to do with some buffer management changes alongside the split of stats into TX and RX. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-13ath10k: fix config_enabled check for hwmonRajkumar Manoharan
Because of wrong macro check in commit 96bba98393f9 ("ath10k: fix build error when hwmon is off"), hwmon never be enabled. Fix that. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: Fix potential Rx ring corruptionVasanthakumar Thiagarajan
When replenishing Rx buffers driver updates the address of the buffer and the index of rx buffer in rx ring to the firmware. Change in order by CPU can cause rx ring corruption. Add memory barrier before updating rx buffer index to guarantee the order. This could fix some instances of rx ring corruption due to done bit in rx attention flag not set. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: fixup wait_for_completion_timeout return handlingNicholas Mc Guire
wait_for_completion_timeout does not return negative values so the tests for <= 0 are not needed and the case differentiation in the error handling path unnecessary. Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: fill max_num_vdevs for wmi-tlvMichal Kazior
Recent commit 30c78167bc6536d9074aa79385a575596343bf69 ("ath10k: set max_num_vdevs based on wmi op version") skipped wmi-tlv case and left max_num_vdevs reset. Make sure it is properly set. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: Remove unused htt->max_throughput_mbpsSujith Manoharan
htt->max_throughput_mbps is not used anywhere. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: add support to send delbaRajkumar Manoharan
This per-station debugfs entry helps to send delba in manual mode for debugging purpose. It accepts tid, initiator and reason code as inputs. To send delba, echo 0 1 37 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/ stations/XX:XX:XX:XX:XX:XX/delba Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: add support to send addba responseRajkumar Manoharan
This per-station debugfs entry helps to send addba response in manual mode for debugging purpose. It accepts tid and status code as input arguments. To send addba response, echo 0 25 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/ stations/XX:XX:XX:XX:XX:XX/addba_resp Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13ath10k: add support to send addba requestRajkumar Manoharan
This per-station debugfs entry helps to send addba request in manual mode. Need to pass two configuration parameters (tid, buffer size) as input. To send addba, echo 1 32 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/ stations/XX:XX:XX:XX:XX:XX/addba Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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