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path: root/drivers/net/wireless/ath/ath9k/ath9k.h
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2012-07-16ath9k: fix invalid pointer access in the tx pathFelix Fietkau1-0/+1
commit 80b08a8d8829a58b5db14b1417151094cc28face upstream. After setup_frame_info has been called, only info->control.rates is still valid, other control fields have been overwritten by the ath_frame_info data. Move the access to info->control.vif for checking short preamble to setup_frame_info before it gets overwritten. This regression was introduced in commit d47a61aa "ath9k: Fix multi-VIF BSS handling" Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reported-by: Thomas Hühn <thomas@net.t-labs.tu-berlin.de> Acked-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-15ath9k: Fix multi-VIF BSS handlingSujith Manoharan1-10/+6
mac80211 provides short preamble information and ERP protection information on a per-BSS basis, which can be used. Remove flags stored in the driver, which was incorrect since they were being used in a global manner. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove aggregation flagsSujith Manoharan1-13/+11
SC_OP_TXAGGR and SC_OP_RXAGGR are not really needed. The HT capabilities of the station and HW can be used instead. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove 'other' VIF countSujith Manoharan1-1/+0
It is not needed and will not be used anyway since unsupported interfaces are not allowed to be created. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-15ath9k: Remove unused variablesSujith Manoharan1-2/+0
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-07ath9k: get rid of double queueing of rx frames on EDMAFelix Fietkau1-1/+0
Process rx status directly instead of separating the completion test from the actual rx status processing. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Use CONFIG_ATH9K_BTCOEX_SUPPORTSujith Manoharan1-0/+28
This patch uses CONFIG_ATH9K_BTCOEX_SUPPORT to conditionally compile btcoex-related code in the driver core. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Calculate ampdu limit using a helperSujith Manoharan1-0/+1
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Process BTCOEX interrupts using a helperSujith Manoharan1-0/+1
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Use proper start/stop routines for BTCOEXSujith Manoharan1-1/+2
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27ath9k: Move BTCOEX init/deinit functions to gpio.cSujith Manoharan1-0/+2
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-10ath9k_hw: fix a commentMohammed Shafi Shajakhan1-1/+0
also remove an unused macro and a function declaration Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04ath9k_hw: increase tx status ring buffer sizeRajkumar Manoharan1-1/+1
AR9003 chips read tx status from ring buffer whose max number of status descriptor is mininal compared to max number of tx buffers. On a stress condition, it can be easily overflown which might cause false tx hung detection. Though increasing number of max status descriptors consumes more memory, it helps to avoid false positive chip resets. Cc: Paul Stewart <pstew@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-19ath9k: fix tx locking issuesFelix Fietkau1-0/+1
The commit "ath9k: simplify tx locking" introduced a soft lockup triggered by mac80211 sending a BAR frame triggered by a driver call to ieee80211_tx_send_bar or ieee80211_tx_status. Fix these issues by queueing processed tx status skbs and submitting them to mac80211 outside of the lock. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-15ath9k: avoid retransmitting aggregation frames that a BAR was sent forFelix Fietkau1-0/+1
The receiver will discard them anyway. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-15ath9k: reduce the number of unnecessary BAR tx packetsFelix Fietkau1-2/+4
When processing A-MPDU tx status, only send a BAR for the failed packet with the highest sequence number. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-15ath9k: change maximum software retransmission handlingFelix Fietkau1-1/+1
Instead of limiting a subframe to 10 A-MPDU software transmission attempts, count hardware retransmissions as well and raise the limit a bit. That way there will be fewer software retransmission attempts when traffic suffers from lots of hardware retransmissions. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30ath9k: Add functions to allocate/free buffers for MCIMohammed Shafi Shajakhan1-0/+1
required buffers and dma allocation is done for GPM and SCHED messages Cc: Wilson Tsao <wtsao@qca.qualcomm.com> Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-30ath9k: Fix LED GPIO pin for AR9462Mohammed Shafi Shajakhan1-1/+1
GPIO pin 4 is assigned AR9462 chipsets LED. while GPIO pin 0 worked for obselete AR9462 chipsets though they are meant for EEPROM as per Russell Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: Russell Hu <rhu@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09ath9k: Improve debugfs printout for stations.Ben Greear1-0/+1
Add interface address so it can be mapped to a local interface. Add max-ampdu and mpdu-density. Print out the tid->baw_size Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-08ath9k: Add btcoex profile management support for AR9462Rajkumar Manoharan1-0/+3
AR9462 chips have the capabilities to provoide bluetooth profile information. For non-AR9462 btcoex chips, the BT priority traffic was identified by periodically polling the respective registers and updated dutycycle, stomptype, etc. As AR9462 chip offers the BT profile informations, let us make use of that to update aggregation limit, dutycycle, stomptype and wieghtages. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-10-14ath9k: Rename AR9480 into AR9462Rajkumar Manoharan1-1/+1
Renamed to be in sync with Marketing term and to avoid confusion with other chip names. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-30mac80211: let drivers inform it about per TID buffered framesJohannes Berg1-1/+2
For uAPSD implementation, it is necessary to know on which ACs frames are buffered. mac80211 obviously knows about the frames it has buffered itself, but with aggregation many drivers buffer frames. Thus, mac80211 needs to be informed about this. For now, since we don't have APSD in any form, this will unconditionally set the TIM bit for the station but later with uAPSD only some ACs might cause the TIM bit to be set. ath9k is the only driver using this API and I only modify it in the most basic way, it won't be able to implement uAPSD with this yet. But it can't do that anyway since there's no way to selectively release frames to the peer yet. Since drivers will buffer frames per TID, let them inform mac80211 on a per TID basis, mac80211 will then sort out the AC mapping itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: use the new API for setting tx descriptorsFelix Fietkau1-1/+0
With the new API, tx descriptors can be written in one single pass instead of having to re-read and rewrite fields from multiple places. This makes the code easier to read and also slightly improves performance on embedded MIPS hardware. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: reduce the number of functions that access the tx descriptorFelix Fietkau1-0/+1
Makes it easier to clean up the ath9k_hw descriptor API Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: remove ATH_TX_XRETRY and BUF_XRETRY flagsFelix Fietkau1-5/+1
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-16ath9k: enable LED pin for AR946/8x chipsetsMohammed Shafi Shajakhan1-0/+1
now the LED starts working for AR946/8x chipsets Cc: "Balasubramanian, senthilkumar" <senthilb@qca.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14ath9k: implement .get_antenna and .set_antennaFelix Fietkau1-0/+2
On MIMO chips this can be used to enable/disable hardware chains, ensuring that the MCS information is updated accordingly. On non-MIMO chips with rx diversity (e.g. 9285), this configures the rx input antenna. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-14ath9k: always call ath_reset from workqueue contextFelix Fietkau1-1/+2
This makes it much easier to add further rework to avoid race conditions between reset and other work items. Move other functions to make ath_reset static. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-30ath9k: move the sequence number from ath_frame_info to ath_bufFelix Fietkau1-1/+1
It is only necessary for BAW tracking and moving it to the ath_buf makes it easier to add further improvements, such as deferring seqno allocation in the aggregation path. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-30ath9k: clean up the aggregation tid queueFelix Fietkau1-1/+2
Use a sk_buff_head instead containing skbs instead of a list_head containing ath_bufs. This makes it easier to decouple the aggregation code from the ath_buf struct Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-30ath9k: use u8 for the tx key indexFelix Fietkau1-1/+1
This saves some space in struct ath_frame_info Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24ath9k: Move ath9k_init_crypto to commonRajkumar Manoharan1-1/+0
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24ath9k: Remove SC_OP_ENABLE_APMRajkumar Manoharan1-2/+1
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-09ath9k: Use atomic reference count for interrupt opsRajkumar Manoharan1-1/+0
Let us enable/disable interrupts based on reference count. By doing this we can ensure that interrupts are never be enabled in the middle of tasklet processing. Instead of addressing corner cases like "ath9k: avoid enabling interrupts while processing rx", this approach handles it in generic manner. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-09ath9k: Remove virtual wiphy specific frame typeRajkumar Manoharan1-3/+0
This patch cleanups virtual wiphy specific frametype structure Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08ath9k: remove all references to subsysid, it's never usedPavel Roskin1-1/+1
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-30Merge branch 'master' of ↵John W. Linville1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-06-29ath9k: move few descriptor macros to ath9k.hMohammed Shafi Shajakhan1-0/+5
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-24Merge branch 'master' of ↵John W. Linville1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/rtlwifi/pci.c include/linux/netlink.h
2011-06-17ath9k: typo fix in a commentPavel Roskin1-1/+1
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-17ath9k: use standard max(), remove A_MAX macroPavel Roskin1-2/+0
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-08Merge branch 'master' of ↵John W. Linville1-6/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-06-06net: remove interrupt.h inclusion from netdevice.hAlexey Dobriyan1-0/+1
* remove interrupt.g inclusion from netdevice.h -- not needed * fixup fallout, add interrupt.h and hardirq.h back where needed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-01ath9k: Add a debug entry to start/stop ANIMohammed Shafi Shajakhan1-0/+1
this helps the user to start/stop ANI dynamically. Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01ath9k: mark few functions as staticMohammed Shafi Shajakhan1-3/+0
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01ath9k: make ath9k_setpower function as staticMohammed Shafi Shajakhan1-1/+0
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01ath9k: unify edma and non-edma tx code, improve tx fifo handlingFelix Fietkau1-2/+1
EDMA based chips (AR9380+) have 8 Tx FIFO slots, which are used to fix the tx queue start/stop race conditions which have to be worked around for earlier chips by keeping the last descriptor in the queue. The current code stores all frames that do not fit onto the 8 FIFO slots in a separate list. Whenever a FIFO slot is freed up, the next frame (or A-MPDU) from the pending queue gets moved to that slot. This process is not only inefficient, but also unnecessary. The code can be improved visibly by keeping the pending queue fully linked, and moving the contents of the entire queue to a FIFO slot as it becomes available. This patch makes the necessary changes for that and also merges some code that was duplicated for EDMA vs non-EDMA. It changes txq->axq_link to point to the last descriptor instead of the link pointer, so that ath9k_hw_set_desc_link can be used, which works on all chips. With this patch, a small performance increase for non-aggregated traffic was observed on AR9380 based embedded hardware. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-19ath9k: implement .tx_last_beacon()Felix Fietkau1-0/+3
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-19ath9k: Drag the driver to the year 2011Sujith Manoharan1-1/+1
The Times They Are a-Changin'. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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