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2013-05-03ath5k: do not reschedule tx_complete_work on stopStanislaw Gruszka
This patch claim to fix "WARNING: at net/mac80211/util.c:599 ieee80211_can_queue_work.isra.7+0x30/0x40", which was reported at: https://bugzilla.redhat.com/show_bug.cgi?id=922295 We use ATH_STAT_STARTED flag to disallow to perform ath5k_tx_complete_poll_work() code, hence reschedule ah->tx_complete_work, when we stop device. This flag was defined in ath5k code, but it was not used. I didn't get feedback if the fix works, so patch is compile only tested. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-03ath9k: fix key allocation error handling for powersave keysFelix Fietkau
If no keycache slots are available, ath_key_config can return -ENOSPC. If the key index is not checked for errors, it can lead to logspam that looks like this: "ath: wiphy0: keyreset: keycache entry 228 out of range" This can cause follow-up errors if the invalid keycache index gets used for tx. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26rtlwifi: rtl8192cu: Fix false loss of AP indicationLarry Finger
A major change in the rtlwifi family recently added code to detect when there is loss of AP signals. One critical statement needed for the USB driver was missed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26brcmsmac: Fix merge issuePiotr Haber
Commit 7088f4835aa353f7226e57e73fd9e6564a4dfb75 "Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless" ramoved call to brcms_led_unregister in mac80211_if.c Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Piotr Haber <phaber@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26mwifiex: Correct pci_unmap_single's sizeYogesh Ashok Powar
There exist mismatch between the size used for pci_map and pci_unmap on command skb. Correcting it. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26mwifiex: Do not kfree cmd buf while unregistering PCIeYogesh Ashok Powar
All the command buffers are freed in mwifiex_free_cmd_buffer() and hence there is no need to kfree the current command buffer again. This might ends up freeing memory allocated by some other kernel code. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26mwifiex: Call pci_release_region after calling pci_disable_deviceYogesh Ashok Powar
"drivers should call pci_release_region() AFTER calling pci_disable_device()" Please refer section 3.2 Request MMIO/IOP resources in Documentation/PCI/pci.txt Cc: <stable@vger.kernel.org> # 3.2+ Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-26mwifiex: Use pci_release_region() instead of a pci_release_regions()Yogesh Ashok Powar
PCI regions are associated with the device using pci_request_region() call. Hence use pci_release_region() instead of pci_release_regions(). Cc: <stable@vger.kernel.org> # 3.2+ Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> 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>
2013-04-26Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
2013-04-23mwifiex: rework round robin scheduling of bss nodes.Andreas Fenkart
Rotate bss prio list, so the bss next to the one served, will come first in the list of bss' with equal priority. This way we pick bss nodes in a round robin fashion. Using list rotation instead of a cur ptr simplifies iteration to calling list_for_each_entry. List rotation is done via list_move, where the head itself is temporarily removed and then re-inserted after the bss just served. Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23mwifiex: replace ra_list_curr by list rotation.Andreas Fenkart
After a packet is successfully transmitted, ra list is rotated, so the ra next to the one transmitted, will be the first in the list. This way we pick the ra' in a round robin fashion. This significantly simplifies iteration in mwifiex_wmm_get_highest_priolist_ptr to a call to list_for_each_entry. List rotation is done via list_move, where the head itself is temporarily removed and then re-inserted after the item just transferred. Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23brcmfmac: add credit borrowing mechanismArend van Spriel
The firmware provides credits to the driver per WMM-AC. When only AC_BE are to be transmitted to the firmware the driver may use credits from other priorities to send AC_BE packets towards the firmware. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23brcmfmac: correct error handling in brcmf_fws_init()Arend van Spriel
In brcmf_fws_init() the error flows were not properly handled and the caller ignored the return value. The only action that is allowed to fail in brcmf_fws_init() is setting the tlv in firmware as the feature is not supported on all devices. Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23brcmfmac: flush queue upon MACDESC_DEL firmware signalArend van Spriel
When firmware signals the driver to remove a destination entry it may have sk_buff packets queued for it. These should be freed. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23brcmfmac: support critical protocol API for DHCPPiotr Haber
Adds support for the critical protocol API provided by nl80211 which gives Wifi traffic priority over a Bluetooth (e)SCO connection and disables scanning during DCHP negotiation. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Piotr Haber <phaber@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23brcmfmac: allow scanning to be suppressed in the driverArend van Spriel
During the DHCP protocol exchange it is benificial to suppress scan requests which may decrease time to complete DHCP protocol. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: Fix RX DMA mappingSujith Manoharan
After the commit "ath9k: improve dma map failure handling", the wrong buffer was DMA-unmapped, introducing warnings like the one below. This patch fixes the issue. WARNING: at /home/sujith/dev/wireless-testing/lib/dma-debug.c:986 check_sync+0x4bc/0x580() Hardware name: LIFEBOOK AH531 ath9k 0000:02:00.0: DMA-API: device driver tries to sync DMA memory it has not allocated [device address=0x00000000d9012800] [size=48 bytes] Pid: 86, comm: kworker/u:5 Tainted: G W O 3.9.0-rc8-wl-debug #106 Call Trace: [<ffffffff810410c0>] warn_slowpath_common+0x70/0xa0 [<ffffffff8104113c>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff8125432c>] check_sync+0x4bc/0x580 [<ffffffff8109e5f7>] ? trace_hardirqs_on_caller+0xa7/0x190 [<ffffffff8109e6ed>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff81254488>] debug_dma_sync_single_for_device+0x48/0x50 [<ffffffffa0a53825>] ? ath9k_iowrite32+0x35/0x90 [ath9k] [<ffffffff812512f0>] ? swiotlb_tbl_sync_single+0x50/0x90 [<ffffffff81251350>] ? swiotlb_sync_single+0x20/0x30 [<ffffffff8125137f>] ? swiotlb_sync_single_for_device+0xf/0x20 [<ffffffffa0a58baf>] ath_rx_edma_buf_link+0xef/0x140 [ath9k] [<ffffffffa0a58c4e>] ath_rx_addbuffer_edma+0x4e/0x90 [ath9k] [<ffffffffa0a59c51>] ath_startrecv+0xf1/0x120 [ath9k] [<ffffffffa0a550e0>] ath_complete_reset+0x20/0x130 [ath9k] [<ffffffffa0a5790d>] ath_reset_internal+0x10d/0x210 [ath9k] [<ffffffffa0a5878c>] ath9k_config+0x47c/0x7b0 [ath9k] [<ffffffffa06d4978>] ieee80211_hw_config+0x88/0x3f0 [mac80211] [<ffffffffa06d4a3f>] ? ieee80211_hw_config+0x14f/0x3f0 [mac80211] [<ffffffffa06dbed1>] __ieee80211_scan_completed+0xc1/0x440 [mac80211] [<ffffffffa06dd002>] ieee80211_scan_work+0x82/0x440 [mac80211] [<ffffffff810606a3>] process_one_work+0x1e3/0x530 [<ffffffff81060641>] ? process_one_work+0x181/0x530 [<ffffffff8106163f>] worker_thread+0x10f/0x3c0 [<ffffffff81061530>] ? manage_workers+0x330/0x330 [<ffffffff810665da>] kthread+0xea/0xf0 [<ffffffff810664f0>] ? kthread_create_on_node+0x140/0x140 [<ffffffff8146085c>] ret_from_fork+0x7c/0xb0 [<ffffffff810664f0>] ? kthread_create_on_node+0x140/0x140 Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: Use lockless variants for the RX fifo queueSujith Manoharan
The RX fifo can be accessed from the common tasklet or it can be reaped/cleaned when RX is stopped, which is done when doing a reset or channel change - this happens in process context. Since it is ensured that there are no pending tasklets when stopping RX and cleaning the FIFO, there is no need to use SKB queue functions which take internal locks. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: Reduce deep indentationSujith Manoharan
The EDMA case is handled first, so the else condition can be removed. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: Remove unused argument "size"Sujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Acked-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: add support for the new rate control APIFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: merge ath_tx_start_dma into ath_tx_startFelix Fietkau
The split makes no sense and merging the functions makes further changes easier to implement Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23rtl8192c:dm: Properly initialize local array and set value.Han Shen
GCC 4.8 is spitting out uninitialized-variable warnings against "drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c". This patch adds initialization to the variable and properly sets its value. Signed-off-by: Han Shen (shenhan@google.com) Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23ath9k: apply coverage class on slottime tooMathias Kretschmer
According to 802.11-2007 17.3.8.6 (slot time), the slot time should be increased by 3 us * coverage class. The code only increased the ack timeout, which is fixed by this patch. We have noticed in our long shot scenario that we see less collisions with this patch. Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [add standard reference and commit message] Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-23Merge branch 'master' of git://git.infradead.org/users/rafal/b43-nextJohn W. Linville
2013-04-23Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
2013-04-23b43: N-PHY: don't use deprecated b43_radio_foo16Rafał Miłecki
All radio ops are 16b (there is only 1 exception for reg 0x1), so we deprecated b43_radio_read16 and b43_radio_write16 long time ago. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: clean init tablesRafał Miłecki
Sort defines, use one macro for all revs, support for 5GHz when uploading antenna table. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: move tables init function to tables fileRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use defines for (re)storing VCM configRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use shortcut "ctl" in functions namesRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use enum for INTC override function argumentRafał Miłecki
Also make a function name shorter so we can easily fit 80 chars. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: define missing registersRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: use defines for board_typeRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: fix "NB" RSSI calibration on PHYs rev2-Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use enum for RSSI type everywhere we use itRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: rename RSSI types to be shorter and more accurateRafał Miłecki
Thanks to Broadcom releasing some code we can use better names. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use more friendly variables names in RSSI codeRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: simplify conditions in RSSI offset scale functionRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: N-PHY: use enum for RAIL typeRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: use enum for RSSI typesRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: store TX power state before disabling itRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: define regs for power estimationRafał Miłecki
In MMIO dumps of ndiswrapper there are following PHY ops: phy_read(0x0118) -> 0x013d phy_read(0x01ed) -> 0x993d phy_read(0x0119) -> 0x012f phy_read(0x01ee) -> 0x992f phy_read(0x011a) -> 0x0139 phy_read(0x0969) -> 0x9939 It matches the code of wlc_phy_txpower_est_power_nphy (from brcm80211), so we know the registers meaning. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: do some extra TSSI setup after configuring TXRafał Miłecki
After b43_phy_ht_tx_power_ctl_setup there are some extra radio ops: radio_read(0x08bf) -> 0x0001 radio_write(0x08bf) <- 0x0001 radio_write(0x0159) <- 0x0011 On N-PHY we write 0x11 to TSSI regs, so it's probably sth similar. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: finish calculating values for idle TSSIRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: tables: don't duplicate core-generic regsRafał Miłecki
Now when we know many radio regs at 0x000 are core-generic, I've noticed we duplicate some values in the tables. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-23b43: HT-PHY: rename defines addressing cores on the 2059 radioRafał Miłecki
After comparing writes to registers at 0x000, 0x400 and 0x800 it seems there are many very similar writes. So 0x000 offset is not for accessing something totally different, but probably just the first out of three cores. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
2013-04-22mwifiex: remove redundant initialization for bss_descriptorBing Zhao
Initialization of bss_descriptor is unnecessary as the entire structure will be overwritten by a memcpy followed by. Initialize disable_11ac flag properly by setting it to true in mwifiex_fill_new_bss_desc(). Reported-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-22mwifiex: fix use-after-free in beacon_ie processingBing Zhao
beacon_ie buffer is allocated in mwifiex_fill_new_bss_desc() and the buffer pointer is saved in bss_desc->beacon_buf. beacon_ie is freed before the function returns. However, bss_desc->beacon_buf is still being accessed afterwards. Fix it by freeing beacon_ie (bss_desc->beacon_buf) in caller's scope. Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-04-22mwifiex: don't try to associate when bss_mode is not STABing Zhao
We have blocked association attempts on interfaces configured in AP and AD-HOC modes. P2P mode should be blocked too. Furthermore, an error code must be returned if we are unable to associate. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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