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path: root/drivers/net/wireless/mwl8k.c
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2013-01-07drivers/net/wireless/mwl8k.c: avoid use-after-freeNickolai Zeldovich
Do not dereference p->station_id after kfree(cmd) because p points into the cmd data structure. Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-06mwl8k: remove __dev* attributesBill Pemberton
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-12-03mwl8k: remove useless pci shutdown callback and stray debuggingFlorian Fainelli
This patch removes a left over debugging print present in the pci shutdown callback, since this callback does not do anything useful, get rid of it entirely. Signed-off-by: Florian Fainelli <ffainelli@freebox.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-16mwl8k: Send BASTREAM firmware commands per vifYogesh Ashok Powar
The firmware supports 8 macid's corresponding to 8 BSS that can be created in an MBSS environment. Currently, BASTREAM commands were always sent with macid 0. This macid is used to configure the hardware ampdu registers with appropriate BSS address in an MBSS environment. This mac address is used by the hardware for various ampdu related requirements e.g. source address in BAR generation, BA interpretation e.t.c. Using invalid macid results in this mac address not getting appropriately configured in the hardware which results in issues during ampdu traffic. Fix this by sending the BASTREAM commands with appropriate macid. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14mwl8k: Set packet timestamp to 0 when life time expiry is not usedNishant Sarmukadam
Set tx packet timestamp to 0 in following scenarios:- - All packets in STA mode - Mgmt packets in AP mode - Eapol packets in AP mode In STA mode, this field is unused in the firmware. In AP mode, we should not be expiring mgmt and eapol frames. Setting timestamp to 0 will ensure that. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14mwl8k: Do not expire eapol framesNishant Sarmukadam
This can cause issues when clients try to connect when the traffic is heavy Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14mwl8k: Unmap the pci DMA address in xmit error pathNishant Sarmukadam
We should unmap the DMA address in the error path, else it causes resource leaks. Fix this. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14mwl8k: recheck if station still has valid ratesYogesh Ashok Powar
We have 6.5 Mbps is minimum rate of the link as the criterion for creation of BA. Although we check this before creating the BA stream, by the time amdpu_action is called from the workqueue, the link can get affected in the meantime. Hence, add an additional check in amdpu_action. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-14mwl8k: defining interface combinationsYogesh Ashok Powar
AP mode support upto 8 interfaces. Defining it using iface_combinations Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-07-31mac80211: move TX station pointer and restructure TXThomas Huehn
Remove the control.sta pointer from ieee80211_tx_info to free up sufficient space in the TX skb control buffer for the upcoming Transmit Power Control (TPC). Instead, the pointer is now on the stack in a new control struct that is passed as a function parameter to the drivers' tx method. Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: Alina Friedrichsen <x-alina@gmx.net> Signed-off-by: Felix Fietkau <nbd@openwrt.org> [reworded commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-11mwl8k: fix possible race condition in info->control.sta useThomas Huehn
info->control.sta may only be dereferenced during the drv_tx call otherwise could lead to use-after-free bugs Reported-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-11drivers/net: Convert compare_ether_addr to ether_addr_equalJoe Perches
Use the new bool function ether_addr_equal to add some clarity and reduce the likelihood for misuse of compare_ether_addr for sorting. Done via cocci script: $ cat compare_ether_addr.cocci @@ expression a,b; @@ - !compare_ether_addr(a, b) + ether_addr_equal(a, b) @@ expression a,b; @@ - compare_ether_addr(a, b) + !ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) == 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) != 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) == 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) != 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !!ether_addr_equal(a, b) + ether_addr_equal(a, b) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-16net/wireless: use module_pci_driverAxel Lin
This patch converts the drivers in drivers/net/wireless/* to use module_pci_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Nick Kossifidis <mickflemm@gmail.com> Cc: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com> Cc: Simon Kelley <simon@thekelleys.org.uk> Cc: Jouni Malinen <j@w1.fi> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: Ivo van Doorn <IvDoorn@gmail.com> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: linux-wireless@vger.kernel.org Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-21Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2012-02-13drivers/net: Remove boolean comparisons to true/falseJoe Perches
Booleans should not be compared to true or false but be directly tested or tested with !. Done via cocci script: @@ bool t; @@ - t == true + t @@ bool t; @@ - t != true + !t @@ bool t; @@ - t == false + !t @@ bool t; @@ - t != false + t Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-06mwl8k: Remove BSSID from the firmware when the BSS is stoppedYogesh Ashok Powar
Using command DEL_MAC_ADDR, remove the mac address of the BSS when it is stopped i.e the corresponding vif is removed. Without this, the stale bss entry will still be maintained in the firmware which causes issues when the BSS's are recreated. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-27mwl8k: Configuring correct MAC address in broadcast keyYogesh Ashok Powar
While configuring the broadcast key in the hardware, in multi-BSS environment, BSSes other than first were incorrectly configured with the MAC address of first BSS. Fixing it with correct MAC addresses. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-17mwl8k: Fixing Sparse ENDIAN CHECK warningYogesh Ashok Powar
Fixing following sparse warning >drivers/net/wireless/mwl8k.c:2780:15: warning: incorrect type in assignment (different base types) >drivers/net/wireless/mwl8k.c:2780:15: expected restricted unsigned short [usertype] channel >drivers/net/wireless/mwl8k.c:2780:15: got unsigned short [unsigned] [usertype] hw_value Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-17mwl8k: fix condition in mwl8k_cmd_encryption_remove_key()Dan Carpenter
The intent here was to check whether key->cipher was WEP40 or WEP104. We do a similar check correctly in several other places in this file. The current condition is always true. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-05Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/b43legacy/dma.c
2012-01-05mwl8k: Changing the driver version to 0.13Yogesh Ashok Powar
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04mwl8k: Recover from firmware crashYogesh Ashok Powar
In case of firmware crash, reload the firmware and reconfigure it by triggering ieee80211_hw_restart; mac80211 utility function. V2 Addressed following comments from Lennert: - Stop the queues during reload - Removed atomic_t declaration for hw_restart - Extend the firmware reload support for sta firmware as well - Other misc changes Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-03Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/b43/dma.c drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
2011-12-21mwl8k: Call ieee80211_stop_tx_ba_cb_irqsafe for already deleted BA streamYogesh Ashok Powar
When stack calls ampdu_action with action = IEEE80211_AMPDU_TX_STOP for a stream that has already been removed from the driver, call ieee80211_tx_ba_stop_irqsafe to clear the stream in the stack. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-12-20module_param: make bool parameters really bool (net & drivers/net)Rusty Russell
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. (Thanks to Joe Perches for suggesting coccinelle for 0/1 -> true/false). Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-20net: fix assignment of 0/1 to bool variables.Rusty Russell
DaveM said: Please, this kind of stuff rots forever and not using bool properly drives me crazy. Joe Perches <joe@perches.com> gave me the spatch script: @@ bool b; @@ -b = 0 +b = false @@ bool b; @@ -b = 1 +b = true I merely installed coccinelle, read the documentation and took credit. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-03mac80211: pass vif param to conf_tx() callbackEliad Peller
tx params should be configured per interface. add ieee80211_vif param to the conf_tx callback, and change all the drivers that use this callback. The following spatch was used: @rule1@ struct ieee80211_ops ops; identifier conf_tx_op; @@ ops.conf_tx = conf_tx_op; @rule2@ identifier rule1.conf_tx_op; identifier hw, queue, params; @@ conf_tx_op ( - struct ieee80211_hw *hw, + struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) {...} Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-13mwl8k: Set hardware flag IEEE80211_HW_AP_LINK_PSYogesh Ashok Powar
This will avoid mac80211 to trigger PS mode for connected station based on the PM bit of incoming frames. AP firmware is capable of handling such frames and buffering TX frames destined to the stations that are in PS mode. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22mwl8k: Traffic to clients gets affected when one client leaves a cyrpto bssNishant Sarmukadam
When a client disassociates from a crypto enabled bss, data traffic to other clients connected to the bss is stalled. This was due to a boolean variable used to keep track if HW crypto is enabled i.e. if set key has been called to add a key. This flag was being reset every time delete key was called e.g when a station leaves the bss. Once the flag is reset, rx status flags were not being set for connected clients which disrupts traffic to these clients. Fix this issue by not resetting the flag since we do not need to reset this flag during the life time of the bss. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-22Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2011-07-15mwl8k: Fixing sta dereference when ieee80211_tx_info->control.sta is NULLYogesh Ashok Powar
Following oops was seen on SMP machine >BUG: unable to handle kernel NULL pointer dereference at 00000012 >IP: [<f8c56691>] mwl8k_tx+0x20e/0x561 [mwl8k] >*pde = 00000000 >Oops: 0000 [#1] SMP >Modules linked in: mwl8k mac80211 cfg80211 [last unloaded: cfg80211] As ieee80211_tx_info->control.sta may be NULL during ->tx call, avoiding sta dereference in such scenario with the following patch. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-21Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-rxon.c drivers/net/wireless/rtlwifi/pci.c net/netfilter/ipvs/ip_vs_core.c
2011-06-15mwl8k: Tell firmware to generate CCMP headerNishant Sarmukadam
Post commit e4eefec73ea0a740bfe8736e3ac30dfe92fe392b, the stack is not generating the CCMP header for us anymore. This broke the CCMP functionality since firmware was not doing this either. Set a flag to tell the firmware to generate the CCMP header Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-07net: remove interrupt.h inclusion from netdevice.hAlexey Dobriyan
* 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>
2011-05-05mwl8k: Do not ask mac80211 to generate IV for crypto keysYogesh Ashok Powar
Since firmware is capable of generating IV's for all crypto suits (TKIP, CCMP and WEP), do not ask mac80211 to generate IV when HW crypto is being used. Instead only reserve appropriate space in tx skb's in the driver, so that the firmware can write IV's values. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-05mwl8k: Fix broken WEPYogesh Ashok Powar
The WEP key length was being set to 0 erroneously which broke WEP support. Fix the same by setting the key length appropriately. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-29mwl8k: Reducing extra_tx_headroom for tx optimization in AP modeYogesh Ashok Powar
The tx_headroom required for mwl8k driver is 32 bytes and it can use the space for 802.11 header received from mac80211. mwl8k considers the smallest 802.11 frame (CTS2self of 10 bytes) that can be received from mac80211 to compute the extra_tx_headroom as 22 (32 - 10) bytes. When the wireless interface is part of bridge, this extra_tx_headroom requirement results in a memcpy in mac80211 (in function pskb_expand_head) for all the data frames needing L2 forwarding/bridging, when NET_SKB_PAD is defined as 32. This patch reduces the extra_tx_headroom by 8 bytes so that memcpy of data frames in mac80211 is avoided in this case. The resize will be required in driver for frames with 802.11 header size of less than 18 bytes. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-28mwl8k: replace rateinfo bitfields with mask and shift macrosJohn W. Linville
AFAICT, this driver is claiming that 24 bits of rate info fit into a 16-bit field in the Tx descriptor. Anyway, the use of bitfields is frowned-upon for a variety of well-documented reasons... Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-25mwl8k: Enable life time expiry for tx packets in the hardwareNishant Sarmukadam
Tell the firmware to enable the life time expiry of tx packets in the hardware. The hardware will now refer to the timestamp in every tx packet and decide whether the packet needs to be dropped or transmitted. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-25mwl8k: Reserve buffers for tx management framesNishant Sarmukadam
Since queues are not stopped anymore, management frames would be dropped if the corresponding tx queue is full. This can cause issues say when we want to setup an ampdu stream and action frames i.e addba requests keep getting dropped frequently. Fix this by reserving some buffers to allow management frames to go through in queue full conditions. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-25mwl8k: Add timestamp information for tx packetsPradeep Nemavat
Timestamp tx packets using a HW micro-second timer. This timestamp will be compared to the current timestamp in the hardware and if the difference is greater than 500ms, the packet will be dropped. Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-25mwl8k: Do not stop tx queuesPradeep Nemavat
This is in preparation to support life time expiry of packets in the hardware to avoid head-of-line blocking where a slow client can hog a tx queue and affect the traffic to a faster client from the same queue. Time stamp the packets in driver to allow dropping them in the hardware if they are queued for more than 500ms. If queues are stopped, packets will be queued up outside the driver. Since we will be able to timestamp the packets only after they hit the driver, the timestamp will be less accurate since we cannot consider the time the packets spent in queues outside the driver. With this commit, to achieve accurate timestamping, the tx queues will not be stopped in normal conditions. The only scenarios where the queues will be stopped are when firmware commands are executing or if the interface is brought down. Now, we need to be prepared for a situation where packets hit the driver even after the tx queues are full. Drop all such packets in the driver itself. Signed-off-by: Pradeep Nemavat <pnemavat@marvell.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13mwl8k: use traffic threshold to decide when to start ampduBrian Cavagnolo
Currently, ampdu stream is created on the first qos packet to an HT sta. The overhead of setting up the BA session may not be justified if the outgoing packet rate is minimal (e.g., ping). So we only allow ampdu streams after seeing a critical number of packets in an arbitrary one-second interval. Based on work by Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-13mwl8k: interrupt handling changesNishant Sarmukadam
We do not need to enable all the interrupts in mwl8k_probe_hw. We need to enable only MWL8K_A2H_INT_OPC_DONE interrupt for sending commands to the firmware. Keep the other interrupts masked in mwl8k_probe_hw. Also, in mwl8k_start, where we expect other interrupts, enable only those interrupts we are interested in. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12mwl8k: Fix checkpatch.pl and sparse warnings and errorsYogesh Ashok Powar
Fix checkpatch errors and warnings comprising of indent errors, spaces and __packed warnings. Also fix 'make C = 2' warnings. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/rtlwifi/efuse.c drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c net/bluetooth/mgmt.c
2011-04-07mwl8k: Do not configure tx power unconditionallyNishant Sarmukadam
Instead of configuring tx power unconditionally, check for IEEE80211_CONF_CHANGE_POWER and configure it only when stack sets this flag Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-07mwl8k: do not free unrequested irqBrian Cavagnolo
When the mwl8k driver attempts and fails to switch from sta to ap firmware (or vice-versa) in the mwl8k_add_interface routine, the mwl8k_stop routine will be called. This routine must not attempt to free the irq if it was not requested. Signed-off-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-30mwl8k: Queue ADDBA requests in respective data queuesNishant Sarmukadam
Queue ADDBA requests in respective data queues to avoid ADDBA requests and the the related data packets (to the same ra/tid) queued in the hardware to be sent out asynchronously. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-30mwl8k: Check outgoing rate for a station to decide if ampdu can be createdNishant Sarmukadam
If the outgoing packet rate to a particular HT station is <=6.5 Mbps, do not attempt to create an ampdu. Also, if the outgoing rate is legacy rate, do not create an ampdu. Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Brian Cavagnolo <brian@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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