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2010-10-05wl1271: Support firmware TX packet aggregationIdo Yariv
Instead of sending one packet at a time to the firmware, try to send all available packets at once. This optimization decreases the number of transactions, which saves CPU cycles and increases network throughput. Signed-off-by: Ido Yariv <ido@wizery.com> Tested-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-10-05wl1271: Support firmware RX packet aggregationIdo Yariv
Instead of retrieving one packet at a time from the firmware, try to retrieve all available packets at once. This optimization decreases the number of transactions, which saves CPU cycles and increases network throughput. Signed-off-by: Ido Yariv <ido@wizery.com> Tested-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-10-05wl1271: Handle large SPI transfersIdo Yariv
The HW supports up to 4095 bytes transfers via SPI. The SPI read & write operations do not handle larger transfers, causing the HW to stall in such cases. Fix this by fragmenting large transfers into smaller chunks, and transferring each one separately. Signed-off-by: Ido Yariv <ido@wizery.com> Tested-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Add support for hardware GEM cipherJuuso Oikarinen
This patch adds support for the hardware GEM cipher suite. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Increase connection reliabilityJuuso Oikarinen
This patch improves connection reliability by choosing the lowest basic rate for null-func frames (which increases their range, as the firmware does not do rate fall-back for null-func frames.) Also, increase the PSM entry retry-counter. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Optimize scan durationJuuso Oikarinen
Currently then dwell times for each channel in scans is set to an overly long value, and excessive number of probe-requests are transmitted on each channel (for active scans.) Based on testing, comparable results can be received with smaller dwell-time, and, with fever probe-requests - in fact, reducing the number of probe-requests to 2 seems to increase the number of found results. Configure more optimal values for per channel dwell times. Comparison for the different scan configurations (in my current office environment): dwell-time 60000 3x probe-req == ~60 results 40000 3x probe-req == ~50 results 30000 3x probe-req == ~40 results dwell-time 60000 2x probe-req == ~70 results 40000 2x probe-req == ~60 results 30000 2x probe-req == ~58 results The above are results for a cumulative 3 scan run. For individual scans, the number of results drop slightly more. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Add handling for failing hardware scan commandJuuso Oikarinen
Currently, the driver does not handle a failing hardware command to scan in any way - effectively, the scan machine will jam until the driver is shut down, and future scan requests will just return -EBUSY to user space, resulting in a type of busy-loop. The same problem occurs if the firmware fails to deliver the scan completion event - add timeout for this. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Add hardware recovery mechanismJuuso Oikarinen
There is some probability of hardware failures, which currently go largely undetected. Attempt to recover from these failures by shutting down the hardware, and requesting mac80211 to reconfigure it. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Separate interface removal to another functionJuuso Oikarinen
Do this so the interface removal can be triggered from an upcoming hardware failure recovery mechanism. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Fix work cancelling when shutting down the driverJuuso Oikarinen
The work cancelling has had several hazards, ranging from potentially executing work after the driver is in OFF state, to executing work after the driver and relevant memory structures are already removed. Fix these. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Move scan complete invocation into work functionJuuso Oikarinen
The current scan implementation can jam, if the scan request ends up containing no work. This can especially happen if there is a scan request with only 11a band channels for HW that does not support 11a. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Fix AC/TID default configurationJuuso Oikarinen
The WMM queue default configuration was incorrect, and caused uapsd mode problems (among possible others.) Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Fix tid-configuration of TX framesJuuso Oikarinen
Incorrect TID was configured for TX frames. This resulted in incorrect queues to be used for classes in transmission. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Enable 11a support always, prevent scanning for unsupporting chipsJuuso Oikarinen
This patch always enables 11a band towards the mac80211, but prevents scanning (and hence the usage of) 11a band channels if the chipset does not support it. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Reduce rate used for last PSM entry attemptJuuso Oikarinen
This patch reduces the rate of the null-func used to enter PSM on the last retry as precaution. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Enable/disable 11a support based on INI configurationJuuso Oikarinen
Instead of hardcoding 11a support, enable/disable driver support based on the dual-mode-select parameter in the nvs-file general paramters. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Remove function cmd_read_memoryJuuso Oikarinen
The function is not used anywhere. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Release interrupt *after* releasing the driver contextJuuso Oikarinen
The current order causes driver releasing to fail in various ways, and causes possible instability. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Remove acx_fw_version functionJuuso Oikarinen
It's not used anywhere. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Move setting of wake-up conditions to ps.c from cmd.cJuuso Oikarinen
This removes a fixme. Also, it removes a redundant setting of the wake-up conditions when exiting power save mode, which should improve performance. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Remove outdated FIXME'sJuuso Oikarinen
Remove outdated FIXME's from the code. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Change supported channel order for a more optimal scanJuuso Oikarinen
The mac80211 inserts channels into a scan request in the same order the driver registers them. Use this fact to optimize scan by ordering the channels so that adjacent channels don't get scanned consecutively. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: fix forced passive scanLuciano Coelho
When we get no SSIDs in the scan request, we should force a passive scan in all channels. This patch adds code to force the passive scan flag to be set in that case. Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
2010-09-28wl1271: remove useless 11a check when scanningLuciano Coelho
This code was a leftover of the previous scanning mechanism. The if is totally unnecessary, since both branches do the same thing. Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
2010-09-28wl1271: Fix scan race conditionJuuso Oikarinen
In the scan state machine, the wl1271_mutex is unlocked first then relocked, and then the scan state variables are modified. This makes it possible for ieee80211_scan_complete to be called twice in some scenarios, as the scan completion event from the firmware may be processed while the mutex is unlocked. To fix the issue, move the ieee80211_scan_complete call last in the function. This is generally safer, but there still may be issues is functions calling the scan state machine rely on states checked before the unlocking of the global mutex. (forward ported from 2.6.32 -- this is not strictly needed anymore, because the mutex doesn't need to be unlocked anymore, but I'm applying this change anyway, so that the call to ieee80211_scan_complete is in the same place) Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Add trigger to net_device oper_state to change BT coex priorityJuuso Oikarinen
Add a trigger to net_device changes to monitor for oper_state changes in order to be able to inform the firmware when association is fully complete (including the EAP negotiation.) Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: Implement CMD_SET_STA_STATE to indicate connection completion to FWJuuso Oikarinen
Implement the command function to send CMD_SET_STA_STATE to the firmware. This is used to indicate that association (and the related EAP negotiation) are complete. This is used to tune WLAN-BT coexistense priority towards BT, improving BT A2DP and SCO performance. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
2010-09-28wl1271: remove deprecated ACX definitionLuciano Coelho
As of Rev. 6.1.0.0.335, the ACX_SET_SMART_REFLEX_DEBUG command is deprecated. This patch removes it from the wl1271 driver (it wasn't used anyway). Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
2010-09-27ath9k_htc: Fix TKIP disconnect failure with HTC driversRajkumar Manoharan
The following commit removed splitmic. But forgot to add ATH_CRYPT_CAP_MIC_COMBINED flag for HTC drivers which causes TKIP to fail. Author: Bruno Randolf <br1@einfach.org> Date: Wed Sep 8 16:04:54 2010 +0900 ath/ath9k: Replace common->splitmic with a flag Replace common->splitmic with ATH_CRYPT_CAP_MIC_COMBINED flag. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27mac80211/ath9k: Support AMPDU with multiple VIFs.Ben Greear
The old ieee80211_find_sta_by_hw method didn't properly find VIFS when there was more than one per AP. This caused AMPDU logic in ath9k to get the wrong VIF when trying to account for transmitted SKBs. This patch changes ieee80211_find_sta_by_hw to take a localaddr argument to distinguish between VIFs with the same AP but different local addresses. The method name is changed to ieee80211_find_sta_by_ifaddr. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27ath9k_hw: simplify revision checks for AR9287Felix Fietkau
Since AR9287 v1.0 was never sold (and the initvals removed), its revision checks can be simplified similar to AR9280 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27ath9k_hw: simplify revision checks for AR9285Felix Fietkau
Since AR9285 v1.0 and v1.1 were never sold (and the initvals removed), its revision checks can be simplified similar to AR9280 Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27ath9k_hw: simplify revision checks for AR9280Felix Fietkau
Since AR9280 v1.0 was never sold (and the initvals removed), v1.0 specific revision checks can be removed and the 'v2.0 or later' check can be simplified to a check for AR9280 or later. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27wl1271: Fix overflow in wl1271_boot_upload_nvsIdo Yariv
Due to miscalculation of nvs_len, excessive data was sent to the firmware. Fix this by first setting nvs_ptr to point to the first NVS table, and computing the total size of all NVS tables accordingly. Signed-off-by: Ido Yariv <ido@wizery.com> Tested-By: Tuomas Katila <ext-tuomas.2.katila@nokia.com> Acked-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-27ath5k: Add bssid mask and rxfilter to debugfs.Ben Greear
Helps with debugging virtual interfaces. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-24ath9k_htc: Fix beacon distribution in IBSS modeRajkumar Manoharan
This patch ensures fair beacon distribution in IBSS mode by configuring proper CWmin based on slot time. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-24ath9k: Fix tx struck state with paprdVasanthakumar Thiagarajan
Paprd needs to be done only on active chains(not for all the chains that hw can support). The paprd training frames which are sent for inactive chains would be hanging on the hw queue without getting transmitted and would make the connection so unstable. This issue happens only with the hw which supports paprd cal(ar9003). Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-24airo: remove "basic_rate" module optionDan Carpenter
The "basic_rate" module option is not implemented correctly. If the rate was set to zero it was supposed to set it to "basic_rate | 0x80". Unfortunately the check to see if what zero was wrong and it checked "!ai->config.rates" (which is always false) instead of "!ai->config.rates[i]". This option was just used for development and it wasn't documented anywhere. Instead of fixing it, we can just remove it. Reported-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-24Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/ath/ath5k/base.c net/mac80211/main.c
2010-09-21ath9k: make the driver specific rate control module optionalFelix Fietkau
ath9k can use minstrel_ht instead, so it makes sense to save some space here. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: move ath_tx_aggr_check() to the rate control moduleFelix Fietkau
It is not used anywhere else and can be made static Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: clean up / fix aggregation session flushFelix Fietkau
The tid aggregation cleanup is a bit fragile, as it discards failed subframes in some places, and retransmits them in others. This could block the cleanup of an existing aggregation session, if a retransmission for a tid is issued, yet the tid is never scheduled again because of the cleanup state. Fix this by getting rid of as many subframes as possible, as early as possible, and immediately transmitting pending subframes as regular HT frames instead of waiting for the cleanup to complete. Drop all pending subframes while keeping track of the Block ACK window during aggregate tx completion to prevent sending out stale subframes, which could confuse the receiver side. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: fix an aggregation start related race conditionFelix Fietkau
A new aggregation session start can be issued by mac80211, even when the cleanup of the previous session has not completed yet. Since the data structure for the session is not recreated, this could corrupt the block ack window and lock up the aggregation session. Fix this by delaying the new session until the old one has been cleaned up. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: clean up block ack window handlingFelix Fietkau
There's no reason to keep pointers to pending tx buffers around, if they're only used to keep track of which frames are still pending. Use a bitfield instead. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21wl1271: bugfix: use bitwise-AND instead of logical-ANDEliad Peller
typo - while looking for specific bits we should do a bitwise-AND instead of logical-AND. Signed-off-by: Eliad Peller <eliad@wizery.com> Acked-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21wl1271: avoid redundant memcpy of rx_statusEliad Peller
copy the rx_status directly to skb->cb (control buffer) instead of copying it to a local struct and then copying it again (for each rx packet) Signed-off-by: Eliad Peller <eliad@wizery.com> Acked-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix hang in AP mode when HT STA does PSMChristian Lamparter
This is a obvious bug, skb_queue_walk does not work if the iterator gets removed from the queue. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: reinit phy after HT settings have changedChristian Lamparter
The driver has a set of different initvals for 20 MHz vs dynamic HT2040 operation. Because we can't change some of the registers "in-flight", the driver needs to perform a warm reset. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix state downgrade during resetChristian Lamparter
Don't mark the device as completely dead just yet. If all goes to plan and carl9170_reboot succeeds then we can skip the expensive userspace-driven reinitialization anyway. And if it doesn't and carl9170_reboot fails, then carl9170_usb_cancel_urbs will do the necessary steps. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: abort tasklet during usb resetChristian Lamparter
This patch prevents the tasklet code from interfering while the firmware is down for an unscheduled maintenance. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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