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2011-04-19rt2x00: Enable support for RT53xx PCI devices by default.Gertjan van Wingerde
Code seems to be feature-complete, so no reason to not enable these devices by default. Also, remove the sentence about the support for these devices being non-functional. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: RT33xx device support is no longer experimental.Gertjan van Wingerde
The rt33xx devices support for both PCI and USB devices has been in the tree for a couple of months now, and seems to be functional and not in a worse shape than the support for rt28xx and rt30xx devices. No longer mark it as experimental and enable the support for these devices by default. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Add USB IDs.Gertjan van Wingerde
Add USB IDs that are listed in the latest Ralink Windows and/or Linux drivers. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Allow dynamic addition of PCI/USB IDs.Gertjan van Wingerde
Both USB and PCI drivers allow a system administrator to dynamically add USB/PCI IDs to the device table that a driver supports via the /sys/bus/{usb,pci,pci_express}/drivers/<driver-name>/new_id files. However, for the rt2x00 drivers using this method currently crashes the system with a NULL pointer failure. This is due to the set-up of rt2x00 where the probe functions require a rt2x00_ops structure in the driver_info field of the probed device. As this field is empty for the dynamically added devices this fails for these devices. Fix this by introducing driver-specific probe wrappers that do nothing but calling the bus-specific probe functions with the rt2x00_ops structure as an argument, rather than depending on the driver_info field. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Linksys WUSB600N rev2 is a RT3572 device.Gertjan van Wingerde
Move the USB ID entry from the unknown devices to the list of RT35xx based devices. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Always inline rt2x00pci_enable_interruptHelmut Schaa
This allows the compiler to perform the necessary bitfield calculations during compile time instead of run time and thus reduces the number of instructions to run during each tasklet invocation. This should improve performance in the RX hotpath. This comes at the cost of a slight increase in the module size (for example rt2800pci): Before: text data bss dec hex filename 14133 832 4 14969 3a79 drivers/net/wireless/rt2x00/rt2800pci.ko After: text data bss dec hex filename 14149 832 4 14985 3a89 drivers/net/wireless/rt2x00/rt2800pci.ko Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Decrease association time for USB devicesIvo van Doorn
When powersaving is enabled, assocaition times are very high (for WPA2 networks, the time can easily be around the 3 seconds). This is caused, because the flushing of the queues takes too much time. Without the flushing callback mac80211 assumes a timeout of 100ms while scanning. Limit all flush waiting loops to the same maximum. We can apply this maximum by passing the drop status to the driver, which makes sure the driver performs extra actions during the waiting for the queue to become empty. After these changes, association times fall within the healthy range of ~0.6 seconds with powersaving enabled. The difference between association time between powersaving enabled and disabled is now only ~0.1 second (which can also be due to the measuring method). Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: add timer to handle TX_STA_FIFOJohannes Stezenbach
TX status is reported by the hardware when a packet has been sent (or after TX failed after possible retries), which is some time after the DMA completion. Since the rt2800usb hardware can not signal interrupts we have to use a timer, otherwise the TX status would only be read by the next packet's TX DMA completion, or by the watchdog thread. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: handle TX status timeoutsJohannes Stezenbach
The watchdog just triggers rt2800usb_work_txdone() when it detects a TX status timeout, thus rt2800usb_work_txdone() needs to handle this case. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: fix queue timeout checksJohannes Stezenbach
Add a timestamp to each queue entry which is updated whenever the status of the entry changes, and remove the per-queue timestamps. The previous check was incorrect and caused both false positives and false negatives. With the corrected check it comes apparent that the TX status usually times out on rt2800usb unless there is sufficient traffic (i.e. the next TX will complete the previous TX status). Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2800usb: read TX_STA_FIFO asynchronouslyJohannes Stezenbach
Trying to fix the "TX status report missed" warnings by reading the TX_STA_FIFO entries as quickly as possible. The TX_STA_FIFO is too small in hardware, thus reading it only from the workqueue is too slow and entries get lost. Start an asynchronous read of the TX_STA_FIFO directly from the TX URB completion callback (atomic context, thus it cannot use the blocking rt2800_register_read()). If the async read returns a valid FIFO entry, it is pushed into a larger FIFO inside struct rt2x00_dev, until rt2800_txdone() picks it up. A .tx_dma_done callback is added to struct rt2x00lib_ops to trigger the async read from the URB completion callback. Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Use TXOP_HTTXOP for beaconsHelmut Schaa
Use TXOP_HTTXOP for beacons to stay in sync with the legacy drivers. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Update TX_SW_CFG2 init valueHelmut Schaa
Bring the TX_SW_CFG2 initialisation for rt305x devices in sync with the ralink legacy drivers. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Use correct TBTT_SYNC config in AP modeHelmut Schaa
This seems to fix problems with some powersaving clients since a positive value in TBTT_SYNC_CFG_TBTT_ADJUST introduces beacon skew, which is not wanted in AP mode. Also update the rest of the TBTT_SYNC config according to the legacy drivers in AP mode. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Make rt2x00_queue_entry_for_each more flexibleHelmut Schaa
Allow passing a void pointer to rt2x00_queue_entry_for_each which in turn in provided to the callback function. Furthermore, allow the callback function to stop processing by returning true. And also notify the caller of rt2x00_queue_entry_for_each if the loop was canceled by the callback. No functional changes, just preparation for an upcoming patch. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Split rt2x00dev->flagsIvo van Doorn
The number of flags defined for the rt2x00dev->flags field, has been growing over the years. Currently we are approaching the maximum number of bits which are available in the field. A secondary problem, is that one part of the field are initialized only during boot, because the driver requirements are initialized or device requirements are loaded from the EEPROM. In both cases, the flags are fixed and will not change during device operation. The other flags are the device state, and will change frequently. So far this resulted in the fact that for some flags, the atomic bit accessors are used, while for the others the non-atomic variants are used. By splitting the flags up into a "flags" and "cap_flags" we can put all flags which are fixed inside "cap_flags". This field can then be read non-atomically. In the "flags" field we keep the device state, which is going to be read atomically. This adds more room for more flags in the future, and sanitizes the field access methods. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Fix stuck queue in tx failure caseHelmut Schaa
Since commit 0b7fde54f94979edc67bbf86b5adba702ebfefe8 "rt2x00: Protect queue control with mutex" rt2x00 used rt2x00queue_pause_queue for stopping a tx queue in mac80211. But in case of a failure in the tx path rt2x00 still called ieee80211_stop_queue which stopped the queue but prevented rt2x00queue_unpause_queue to wake the queue up again resulting in a stuck tx queue. Fix this by also using rt2x00queue_pause_queue in case of tx failures. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rt2x00: Enable WLAN LED on Ralink SoC (rt305x) devicesLayne Edwards
This patch adds WLAN LED support to the mac80211 rt2x00 driver for Ralink SoC (rt305x) devices. The current WLAN LED drivers in rt2800lib.c set the LED brightness via an MCU request, but do nothing for SoC. This patch checks for SoC and sets the register to enable the WLAN LED (instead of an MCU request). This enables the WLAN LED for RT305x devices. Signed-off-by: Layne Edwards <ledwards@astrumtech.net> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k: assign keycache slots to unencrypted stationsFelix Fietkau
Frame filtering relies on having a valid destination index (keycache slot), to keep track of the destination. Assigning a keycache slot (configured to unencrypted, with no key data attached) improves powersave handling in AP mode with no encryption. The dummy keycache entry for a station is cleared, when a real key gets added. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k: fix powersave frame filtering/buffering in AP modeFelix Fietkau
This patch fixes a long standing issue of pending packets in the queue being sent (and retransmitted many times) to sleeping stations. This was made worse by aggregation through driver-internal retransmitting of A-MDPU subframes. Previously the hardware tx filter was cleared unconditionally for every single packet - with this patch it uses the IEEE80211_TX_CTL_CLEAR_PS_FILT for unaggregated frames. A sta_notify driver op is added to stop aggregation for stations when they enter powersave mode. Subframes stay buffered inside the driver, to ensure that the BlockAck window keeps a sane state. Since the driver uses software aggregation, the clearing of the tx filter needs to be handled by the driver instead of mac80211 for aggregated frames. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k: Fix beacon generation on foreign channelRajkumar Manoharan
While leaving the oper channel, beacon generation is stopped by mac80211 and beacon slots are marked as inactive. During the scan, ath9k configures beacon timers based on IEEE80211_CONF_OFFCHANNEL which inturn generates beacon alert even though bslot is inactive. ath9k fails to disable beacon alert while moving to offchannel if none of the beacon slot is active. This is causing beacon transmission on foreign channel. This patch enables swba based on active bslots. This issue was reported with two vifs (AP+STA) and triggered scan in STA vif in unassociated state. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19mac80211: add a function for setting the TIM bit for a specific stationFelix Fietkau
This allows a driver to buffer frames for a PS station and tell mac80211 to wake it up even though mac80211 does not have any buffered frames for it. This is necessary for properly handling aggregation related buffering, in ath9k, because the driver needs to keep its frames in order to keep track of the Block-ACK window. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k_htc: Fix free slot value for cab queueRajkumar Manoharan
ath9k_htc_tx_get_slot can return zero as valid index. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Acked-by: Sujith Manoharan <Sujith.Manoharan@Atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19mwifiex: optimize driver initialization codeAmitkumar Karwar
1) removal of unnecessary mwifiex_device structure 2) avoid passing adapter pointer to mwifiex_init_sw() 3) remove local variable drv_mode_info in mwifiex_add_card() 4) type change in mwifiex_bss_attr to match mwifiex_private 5) removal of more wordy comments 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>
2011-04-19mwifiex: remove some macro definitionsAmitkumar Karwar
use corresponding macros defined in include/linux/ieee80211.h 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>
2011-04-19mwifiex: remove redundant local variables and commentsYogesh Ashok Powar
Remove some local variables (mainly function return values) that are used only once. Also, one dummy function and some wordy comments are removed. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19mac80211: fix debugfs printk format warningRandy Dunlap
Fix printf() format warning (tm_year is long int): net/mac80211/debugfs_sta.c:113: warning: format '%d' expects type 'int', but argument 4 has type 'long int' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19iwlegacy: use pci_dev->revisionSergei Shtylyov
Commit be663ab67077fac8e23eb8e231a8c1c94cb32e54 (iwlwifi: split the drivers for agn and legacy devices 3945/4965) added code to read the 4965's revision ID from the PCI configuration register while it's already stored by PCI subsystem in the 'revision' field of 'struct pci_dev'... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k_htc: Cleanup HTC debugfsRajkumar Manoharan
Move the ath9k_htc debugfs under ieee80211 to be inline with ath9k driver and it also helps to simplify debug code. Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Acked-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath9k_htc: Add debugfs support to change debug maskRajkumar Manoharan
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Acked-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19ath: fix 0x6C for beaconing/passive scan flags based on country IELuis R. Rodriguez
The 0x6C regulatory domain is just like the 0x6A regulatory domain but differs in that 0x6C will allow adhoc and active scan on its channels only if we are associated to an AP with a country IE that allows those channels. The ath_reg_apply_beaconing_flags() does just this -- we respect the manufacturer's intent on only enabling beaconing modes of operation if and only if blessed by the country IE. Cc: David Quan <david.quan@atheros.com> Cc: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19rfkill: Regulator consumer driver for rfkillAntonio Ospite
Add a regulator consumer driver for rfkill to enable controlling radio transmitters connected to voltage regulators using the regulator framework. A new "vrfkill" virtual supply is provided to use in platform code. Signed-off-by: Guiming Zhuo <gmzhuo@gmail.com> Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6
2011-04-19Merge branch 'wireless-next-2.6' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6
2011-04-18iwlagn: remove led_opsWey-Yi Guy
No longer use, remove it Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: remove legacy opsWey-Yi Guy
No longer used by _agn devices, remove it Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: remove un-necessary ieee80211_opsWey-Yi Guy
After driver split, no need to use ieee80211_ops, remove it Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: no 5.2GHz/HT40 support for bgn devicesWey-Yi Guy
For bgn devices, there were no HT40 channels value in EEPROM Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: temperature should be measure for all _agn devicesWey-Yi Guy
Thermal throttling functions are available for all _agn devices, call the functions directly. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: always support uCode traceWey-Yi Guy
All _agn devices support continuous uCode trace, remove checking Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: use huge command for beaconJohannes Berg
When testing some new P2P code, Angie found that the driver might crash because the beacon command ended up being bigger than a regular command. This is quite obvious -- a normal command is limited to roughly 360 bytes but a beacon may be much larger of course. To fix this, use the huge command buffer. Reported-by: Angie Chinchilla <angie.v.chinchilla@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: verify that huge commands are synchronousJohannes Berg
Since huge commands all share a single buffer, there can only be a single one in flight at a time since otherwise they'd overwrite each other. This is true in the driver now, but it seems like a possible source of bugs, so add a test to verify that huge commands are always sent synchronously. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: remove most BUG_ON instancesJohannes Berg
There are a number of things in the driver that may result in a BUG(), which is suboptimal since it's hard to get debugging information out of the driver in that case and the user experience is also not good :-) Almost all BUG_ON instances can be converted to WARN_ON with a few lines of appropriate error handling, so do that instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-18iwlagn: use direct call for led functionsWey-Yi Guy
After driver split, no need to call led functions through callback Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-04-14Bluetooth: Fix lockdep warning in L2CAPGustavo F. Padovan
Fix a regression from the L2CAP "rewrite" patches. Purge the tx_q already happens on l2cap_chan_del() so we don't need it at l2cap_disconnect_req(). Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-14Bluetooth: Fix another locking unbalanceGustavo F. Padovan
l2cap_get_sock_by_scid was changed to not lock the socket anymore, but I forgot to change all the users of this function. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-14ath: Add a missing world regulatory domain 0x6CSenthil Balasubramanian
Some customers use 0x6C world regulatory domain and this patch adds the support. Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-14rtlwifi: Fix unitialized variable warningsLarry Finger
In http://lkml.indiana.edu/hypermail/linux/kernel/1104.1/01955.html, Geerti Uytterhoeven reports the following warnings for the rtlwifi drivers. src/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c: warning: 'cck_index' may be used uninitialized in this function: => 637 src/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c: warning: 'cck_index_old' may be used uninitialized in this function: => 637 src/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c: warning: 'box_extreg' may be used uninitialized in this function: => 303 src/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c: warning: 'box_reg' may be used uninitialized in this function: => 303 src/drivers/net/wireless/rtlwifi/rtl8192ce/rf.c: warning: 'chnlgroup' may be used uninitialized in this function: => 205 src/drivers/net/wireless/rtlwifi/rtl8192ce/rf.c: warning: 'u4_regvalue' may be used uninitialized in this function: => 450 src/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c: warning: 'hq_sele' may be used uninitialized in this function: => 924 Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-14mwifiex: rename function mwifiex_is_ba_stream_availBing Zhao
The old function name sounds like checking for existing BA stream. The function actually checks if we have room for creating new BA stream or not. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-14mwifiex: remove unused function parametersAmitkumar Karwar
Some function parameters become useless after previous cleanup changes. 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>