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path: root/drivers/net/wireless/mwifiex
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2014-03-14mwifiex: use VHT MCS mask in set bitrate mask handlerAmitkumar Karwar1-2/+10
As V15 firmware supports VHT rate configuration, we can use this information received in set bitrate mask handler. 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>
2014-03-14mwifiex: add VHT MCS rate configuration supportAmitkumar Karwar4-1/+25
During Tx rate configuration, newer firmware V15 expects bitmap for VHT MCS rates as well. 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>
2014-03-14mwifiex: extract firmware API version numberAmitkumar Karwar3-0/+4
The firmware API version number will be used for future patches to support different firmware API specs. 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>
2014-03-13Merge branch 'master' of ↵John W. Linville30-360/+419
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/ath/ath9k/recv.c
2014-03-08Merge branch 'master' of ↵John W. Linville3-8/+6
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2014-03-06mwifiex: save and copy AP's VHT capability info correctlyAmitkumar Karwar2-6/+5
While preparing association request, intersection of device's VHT capability information and corresponding field advertised by AP is used. This patch fixes a couple errors while saving and copying vht_cap and vht_oper fields from AP's beacon. Cc: <stable@vger.kernel.org> # 3.9+ 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>
2014-03-06mwifiex: copy AP's HT capability info correctlyAmitkumar Karwar1-2/+1
While preparing association request, intersection of device's HT capability information and corresponding fields advertised by AP is used. This patch fixes an error while copying this field from AP's beacon. Cc: <stable@vger.kernel.org> 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>
2014-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-29/+20
Conflicts: drivers/net/wireless/ath/ath9k/recv.c drivers/net/wireless/mwifiex/pcie.c net/ipv6/sit.c The SIT driver conflict consists of a bug fix being done by hand in 'net' (missing u64_stats_init()) whilst in 'net-next' a helper was created (netdev_alloc_pcpu_stats()) which takes care of this. The two wireless conflicts were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-04Merge branch 'master' of ↵John W. Linville3-29/+20
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/ath/ath9k/recv.c drivers/net/wireless/mwifiex/pcie.c
2014-03-04net: Replace min macro with min_tSilvan Jegen1-2/+2
Instead of an explicit cast, use the min_t macro. Signed-off-by: Silvan Jegen <s.jegen@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-03Merge branch 'master' of ↵John W. Linville1-8/+0
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2014-02-28mwifiex: update MCS information as per antenna settingsAmitkumar Karwar5-3/+45
Even if the device is changed to 1X1 mode, data is sent with higher MCS rates after association. This patch fixes the problem by updating MCS information field in HT capability when antenna setting changes so that correct information will be advertised in association and probe request. 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>
2014-02-28mwifiex: replace num_cmd_timeout with is_cmd_timedoutAmitkumar Karwar7-12/+12
Command timeout happens when firmware goes into bad state. There is no chance that next command will be successful after this. Hence we will maintain a flag instead of count. 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>
2014-02-28mwifiex: get rid of extra num_cmd_timeout variableAmitkumar Karwar3-4/+2
We already have one in mwifiex_adapter structure. 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>
2014-02-28mwifiex: block further commands after timeoutAmitkumar Karwar1-0/+5
This patch adds a check in command preparation routine. 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>
2014-02-28mwifiex: stop AP at shutdown timeAmitkumar Karwar5-19/+19
Deauth is sent to AP when the device is acting as station at shutdown time. Similarly we should stop AP operation also. mwifiex_deauthenticate() takes care closing the connection based on provided interface type. Add a new function to simplify the code. Reported-by: Avery Pennarun <apenwarr@gmail.com> 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>
2014-02-28mwifiex: skipping pending commands after unloadAmitkumar Karwar1-1/+3
We skip downloading other commands after FUNC_SHUTDOWN is queued during driver unload. Main thread should be woken up each time after freeing skipped command so that FUNC_SHUTDOWN gets served in case if there are other pending commands before FUNC_SHUTDOWN. Also, call mwifiex_complete_cmd() only for synchronous commands. Reported-by: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Maithili Hinge <maithili@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28mwifiex: abort scan while cancelling pending commandAmitkumar Karwar1-7/+31
mwifiex_cancel_pending_ioctl() and mwifiex_cancel_all_pending_cmd() are called in command timeout and driver unload paths respectively. If scan operation is in progress, we should abort it smoothly. Reported-by: Tim Shepard <shep@alum.mit.edu> 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>
2014-02-28mwifiex: change transmit buffer size for 8897Amitkumar Karwar6-1/+15
Currently default Tx buffer size configured to firmware is 2K for all chipsets. This patch changes it to 4K for SD/PCIe/USB 8897 chipsets as per firmware requirements. 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>
2014-02-28mwifiex: remove global variable cmd_wait_q_requiredBing Zhao18-298/+255
There is a race condition while queuing synchronous command and asynchronous command requested from different threads, because the wait_q_enabled flag is set based on a global variable cmd_wait_q_required. The issue is fixed by removing this global variable and using a unified function with an argument 'sync' passed into the function. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28mwifiex: Track BA sequence number resetPaul Stewart3-7/+24
Some stations reset the sequence number for traffic-ids (TIDs) as they initiate a block-ACK session. In order to detect such behavior, mwifiex must note the starting sequence number given during the ADDBA request. If the first received sequence number after the ADDBA falls outside the receive window for this TID but after the the ADDBA starting sequence number, we can assume that this AP has reset its sequence number during the ADDBA. In this case we must adjust the input window backward to incorporate this received sequence number instead of ignoring it. Otherwise, we could fail to successfully retrieve an arbitrarily large number of downstream frames at the beginning of the block-ACK session. Signed-off-by: Paul Stewart <pstew@chromium.org> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28mwifiex: do not advertise usb autosuspend supportBing Zhao1-8/+0
As many Surface Pro I & II users have found out, the mwifiex_usb doesn't support usb autosuspend, and it has caused some system stability issues. Bug 69661 - mwifiex_usb on MS Surface Pro 1 is unstable Bug 60815 - Interface hangs in mwifiex_usb Bug 64111 - mwifiex_usb USB8797 crash failed to get signal information USB autosuspend get triggered when Surface Pro's AC power is removed or powertop enables power saving on USB8797 device. Driver's suspend handler is called here, but resume handler won't be called until the AC power is put back on or powertop disables power saving for USB8797. We need to refactor the suspend/resume handlers to support usb autosuspend properly. For now let's just remove it. Cc: <stable@vger.kernel.org> # 3.5+ Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28Merge branch 'master' of ↵John W. Linville3-21/+20
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2014-02-25mwifiex: enable obss scan offload feature flagAmitkumar Karwar1-1/+2
We don't perform OBSS scan internally. As we intend to use corresponding feature in application, we will enable this flag. 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>
2014-02-25mwifiex: remove redundant del_timerAvinash Patil1-1/+0
While modifying timer, we need not delete timer. 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>
2014-02-25mwifiex: use del_timer_sync instead of del_timerAvinash Patil4-4/+4
Use SMP safe del_timer_sync instead of del_timer for cancelling timers. 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>
2014-02-25mwifiex: memory corruption in mwifiex_tdls_add_vht_capab()Dan Carpenter1-1/+1
There is a typo here because the names are confusingly similar. The intent was sizeof(struct ieee80211_vht_cap) (size 12) but sizeof(struct ieee80211_ht_cap) (size 32) was used. Anway, it's cleaner to just specify the variable instead of the type. Fixes: 5f6d5983394f ('mwifiex: add VHT support for TDLS') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-24mwifiex: rename usb driver name registerring to usb coreBing Zhao1-3/+1
Both libertas USB driver and mwifiex_usb driver are registerring with name 'usb8xxx'. The following conflict happens while trying to load both drivers. [6.211307] Error: Driver 'usb8xxx' is already registered... [6.217261] mwifiex_usb: Driver register failed! Fix it by renaming mwifiex_usb driver's name. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-21mwifiex: fix cmd and Tx data timeout issue for PCIe cardsAmitkumar Karwar1-17/+11
We are sending sleep confirm done interrupt in the middle of sleep handshake. There is a corner case when Tx done interrupt is received from firmware during sleep handshake due to which host and firmware power states go out of sync causing cmd and Tx data timeout problem. Hence sleep confirm done interrupt is sent at the end of sleep handshake to fix the problem. Cc: <stable@vger.kernel.org> # 3.10+ 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>
2014-02-21mwifiex: add NULL check for PCIe Rx skbAmitkumar Karwar1-0/+6
We may get a NULL pointer here if skb allocation for Rx packet was failed earlier. Cc: <stable@vger.kernel.org> # 3.9+ 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>
2014-02-21mwifiex: clean pcie ring only when device is presentAvinash Patil1-1/+2
Write io memory to clean PCIe buffer only when PCIe device is present else this results into crash because of invalid memory access. Cc: <stable@vger.kernel.org> # 3.9+ 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>
2014-02-21Merge branch 'master' of ↵John W. Linville29-674/+3118
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-02-20cfg80211: Pass TDLS peer capability information in tdls_mgmtSunil Dutt Undekari1-2/+2
While framing the TDLS Setup Confirmation frame, the driver needs to know if the TDLS peer is VHT/HT/WMM capable and thus shall construct the VHT/HT operation / WMM parameter elements accordingly. Supplicant determines if the TDLS peer is VHT/HT/WMM capable based on the presence of the respective IEs in the received TDLS Setup Response frame. The host driver should not need to parse the received TDLS Response frame and thus, should be able to rely on the supplicant to indicate the capability of the peer through additional flags while transmitting the TDLS Setup Confirmation frame through tdls_mgmt operations. Signed-off-by: Sunil Dutt Undekari <usdutt@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-02-17netdevice: add queue selection fallback handler for ndo_select_queueDaniel Borkmann1-1/+1
Add a new argument for ndo_select_queue() callback that passes a fallback handler. This gets invoked through netdev_pick_tx(); fallback handler is currently __netdev_pick_tx() as most drivers invoke this function within their customized implementation in case for skbs that don't need any special handling. This fallback handler can then be replaced on other call-sites with different queue selection methods (e.g. in packet sockets, pktgen etc). This also has the nice side-effect that __netdev_pick_tx() is then only invoked from netdev_pick_tx() and export of that function to modules can be undone. Suggested-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-13mwifiex: add key material v2 supportAvinash Patil6-12/+388
This patch adds key material V2 support to mwifiex. Newer FW supports this feature and FW KEY API version is used to determine which command structure needs to be used. 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>
2014-02-13mwifiex: parse API version from FWAvinash Patil4-1/+60
This patch adds support to parse FW API version TLVs. Currently only API version for key_material is supported. 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>
2014-02-13mwifiex: disable all TDLS link during disconnectionAvinash Patil3-0/+40
During deauthenticate/link lost event, disable all TDLS links as TDLS would not work when infra connection is not active. Also this will avoid an issue where ping to peer station doesn't work after reassociation to AP where we had created TDLS link in earlier association. 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>
2014-02-13mwifiex: separate BA params for TDLS link if 11ac is supportedAvinash Patil2-5/+38
If TDLS link is 11ac enabled i.e. we as well as peer station supports VHT, configure seprate TX & RX window sizes during BA setup. So even if BSS does not support 11ac, we can use VHT capabilities and higher window sizes on direct link. 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>
2014-02-13mwifiex: add VHT support for TDLSAvinash Patil6-7/+346
During TDLS setup request/response, if HW is 11ac capable, we add VHT Capability IEs in outgoing data frame. Also while processing received setup request/response, we preserve peer's 11ac capability retrieved from IEs. Patch also gets VHT parameters from config_station handlers and sets it to FW using TDLS config command. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13mwifiex: pass ieee80211_vht_cap to mwifiex_fill_vht_cap_tlvAvinash Patil1-11/+12
This patch changes mwifiex_fill_vht_cap_tlv function to pass struct ieee80211_vht_cap instead of mwifiex_ie_types_vhtcap so that it can be used generically. 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>
2014-02-13mwifiex: AMPDU support for TDLS linkAvinash Patil5-4/+31
This patch adds AMPDU support for TDLS link. We have set 11n capabilities including AMPDU parameters during ENABLE_LINK. We set a variable in RA list to indicate this as TDLS link. This patch uses these capabilities to know if AMPDU is allowed on TDLS link and enables AMPDU aggregation for TX and RX reording support for RA list for this peer. 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>
2014-02-13mwifiex: tdls related handling for data packets addressed to TDLS peerAvinash Patil3-6/+48
1. If data packet is addressed to TDLS peer for which link is established, mark these packets with TDLS flag so that FW can send them on direct link instead of sending via AP. 2. If data packet is addressed to TDLS peer and TDLS setup is underway, move these packets to TDLS queue. 3. If this packet is TDLS setup packet, do not block it. 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>
2014-02-13mwifiex: provision for holding and restoring packets during TDLS setupAvinash Patil4-0/+100
While TDLS link is being setup, few packets from this station to peer station may be buffered at AP. It may happen that once TDLS link is setup, packets sent from station to peer on direct link get delivered before traffic from AP arrives at peer station. This results into packet reordering issue at peer station. To avoid this, we hold data packets destined to TDLS peer during TDLS setup. These packets are moved to temperory TDLS TX queue. Upon successful TDLS setup, they are moved to RA list created for this peer. Upon failure, packets are moved back to AP's RA list for that particular TID. 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>
2014-02-13mwifiex: add cfg80211 change_station handler supportAvinash Patil6-1/+137
This patch adds cfg80211 change_station handler support for mwifiex which is needed for TDLS link setup. Driver creates a command to modify peer link capabilities and issues command to FW. 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>
2014-02-13mwifiex: add cfg80211 add_station handler supportAvinash Patil4-0/+64
This patch adds cfg80211 add_station handler support for mwifiex which is needed for TDLS setup. Driver issues create TDLS link command to FW upon receiving add_station from cfg80211. 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>
2014-02-13mwifiex: add cfg80211 tdls_oper handler supportAvinash Patil8-0/+246
This patch adds cfg80211 handler tdls_oper handler support to mwifiex. Upon enable link, driver sets status as TDLS status as setup complete and also sets AMSDU size, AMPDU params for direct link. Upon disable link, driver issues command to FW to delete this link in FW. 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>
2014-02-13mwifiex: parse TDLS action frames during RXAvinash Patil6-7/+160
This patch adds support for parsing TDLS action frames during station receive handler. Peer station capabilities are stored into station node. 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>
2014-02-13mwifiex: add tdls_mgmt handler supportAvinash Patil8-0/+533
This patch adds support for TDLS management frames transmit handler. mwifiex driver supports TDLS with external support, i.e. expects user space application to form TDLS frames. Same is advertised to cfg80211 during registration. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-13mwifiex: cleanup in mwifiex_fill_cap_info()Amitkumar Karwar4-16/+21
Pass 'struct ieee80211_ht_cap' pointer to mwifiex_fill_cap_info() instead of 'struct mwifiex_ie_types_htcap' pointer, because the routine internally uses the later one. This patch also adds WARN_ON_ONCE check for NULL band. 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>
2014-02-13mwifiex: move station list functions to common codeAvinash Patil3-118/+124
These functions are now needed by TDLS while managing station list. Move them from AP related file to utility file. 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>