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2014-05-12mmc: drop the speed mode of card's stateSeungwon Jeon1-3/+1
Timing mode identifier has same role and can take the place of speed mode. This change removes all related speed mode. Signed-off-by: Seungwon Jeon <[email protected]> Tested-by: Jaehoon Chung <[email protected]> Acked-by: Jaehoon Chung <[email protected]> Signed-off-by: Ulf Hansson <[email protected]> Signed-off-by: Chris Ball <[email protected]>
2014-05-12brcmfmac: Fix iovar 'bw_cap' set command failureDaniel Kim1-1/+1
Fix iovar 'bw_cap' set command failure introduced by commit ff3b0fba6f25555ef59c55d138a467d0f81d82d7 Author: Arend van Spriel <[email protected]> Date: Sat Mar 15 12:00:57 2014 +0100 brcmfmac: fallback to mimo_bw_cap for older firmwares This resulted in disabling 20MHz operation in the firmware. Reviewed-by: Arend Van Spriel <[email protected]> Signed-off-by: Daniel Kim <[email protected]> Signed-off-by: Arend van Spriel <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller13-43/+41
Conflicts: drivers/net/ethernet/altera/altera_sgdma.c net/netlink/af_netlink.c net/sched/cls_api.c net/sched/sch_api.c The netlink conflict dealt with moving to netlink_capable() and netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations in non-init namespaces. These were simple transformations from netlink_capable to netlink_ns_capable. The Altera driver conflict was simply code removal overlapping some void pointer cast cleanups in net-next. Signed-off-by: David S. Miller <[email protected]>
2014-05-11iwlwifi: remove spurious newline in KconfigJohannes Berg1-1/+0
There's an extra newline that shouldn't be there - remove it. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: cause build error on missing newlineJohannes Berg1-8/+33
If a (debug) message is missing a newline, cause build error so we don't keep reintroducing this problem. This also prevents using a non-constant argument as the format string which is a good idea anyway (e.g. for security reasons.) Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: Disable uAPSD for a DCM clientAvri Altman1-0/+27
A binding object associates virtual MACs to a Phy. Binding object can ask (and get) air time, thus allowing several MACs to share the medium. A binding object can be in either one of 3 states: 1) standalone - A single active MAC 2) Different Channel Mode (DCM) - There are 2 active MACs or more (not necessarily just clients), but each has its own channel. 3) Same Channel Mode (SCM) - There are 2 active MACs or more (not necessarily just clients), that share the same channel. This patch introduces an additional condition for enabling uAPSD: uAPSD should be disabled for a client in DCM. The reason for that is a low latency issue in Miracast. Signed-off-by: Avri Altman <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: Add power management support for P2P DCMAvri Altman1-3/+7
If two clients are active while each one is alone on its channel, and the applicable flags are set, power management should be enabled. This condition is referred to as Different Channel Mode (DCM). Up to now, in DCM power management was supported only on BSS. This patch adds support for P2P power management in DCM as well. Signed-off-by: Avri Altman <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: fix setting channel in monitor modeEmmanuel Grumbach1-2/+2
There was a deadlock in monitor mode when we were setting the channel if the channel was not 1. ====================================================== [ INFO: possible circular locking dependency detected ] 3.14.3 #4 Not tainted ------------------------------------------------------- iw/3323 is trying to acquire lock: (&local->chanctx_mtx){+.+.+.}, at: [<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211] but task is already holding lock: (&local->iflist_mtx){+.+...}, at: [<ffffffffa0609e0a>] ieee80211_set_monitor_channel+0x5a/0x1b0 [mac80211] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&local->iflist_mtx){+.+...}: [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0 [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0 [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0 [<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211] [<ffffffffa0518189>] iwl_mvm_recalc_multicast+0x49/0xa0 [iwlmvm] [<ffffffffa051822e>] iwl_mvm_configure_filter+0x4e/0x70 [iwlmvm] [<ffffffffa05e6d43>] ieee80211_configure_filter+0x153/0x5f0 [mac80211] [<ffffffffa05e71f5>] ieee80211_reconfig_filter+0x15/0x20 [mac80211] [snip] -> #1 (&mvm->mutex){+.+.+.}: [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0 [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0 [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0 [<ffffffffa0517246>] iwl_mvm_add_chanctx+0x56/0xe0 [iwlmvm] [<ffffffffa062ca1e>] ieee80211_new_chanctx+0x13e/0x410 [mac80211] [<ffffffffa062d953>] ieee80211_vif_use_channel+0x1c3/0x5a0 [mac80211] [<ffffffffa06035ab>] ieee80211_add_virtual_monitor+0x1ab/0x6b0 [mac80211] [<ffffffffa06052ea>] ieee80211_do_open+0xe6a/0x15a0 [mac80211] [<ffffffffa0605a79>] ieee80211_open+0x59/0x60 [mac80211] [snip] -> #0 (&local->chanctx_mtx){+.+.+.}: [<ffffffff810d6cb7>] check_prevs_add+0x977/0x980 [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0 [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0 [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0 [<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211] [<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211] [<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211] [<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211] [<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211] [snip] other info that might help us debug this: Chain exists of: &local->chanctx_mtx --> &mvm->mutex --> &local->iflist_mtx Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&local->iflist_mtx); lock(&mvm->mutex); lock(&local->iflist_mtx); lock(&local->chanctx_mtx); *** DEADLOCK *** This deadlock actually occurs: INFO: task iw:3323 blocked for more than 120 seconds. Not tainted 3.14.3 #4 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. iw D ffff8800c8afcd80 4192 3323 3322 0x00000000 ffff880078fdb7e0 0000000000000046 ffff8800c8afcd80 ffff880078fdbfd8 00000000001d5540 00000000001d5540 ffff8801141b0000 ffff8800c8afcd80 ffff880078ff9e38 ffff880078ff9e38 ffff880078ff9e40 0000000000000246 Call Trace: [<ffffffff817ea841>] schedule_preempt_disabled+0x31/0x80 [<ffffffff817ebaed>] mutex_lock_nested+0x19d/0x4f0 [<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211] [<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211] [<ffffffffa052a680>] ? iwl_mvm_power_mac_update_mode+0xc0/0xc0 [iwlmvm] [<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211] [<ffffffffa0529357>] _iwl_mvm_power_update_binding+0x27/0x80 [iwlmvm] [<ffffffffa0516eb1>] iwl_mvm_unassign_vif_chanctx+0x81/0xc0 [iwlmvm] [<ffffffffa062d3ff>] __ieee80211_vif_release_channel+0xdf/0x470 [mac80211] [<ffffffffa062e2fa>] ieee80211_vif_release_channel+0x4a/0xb0 [mac80211] [<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211] [<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211] [<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211] [<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211] This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75541 Cc: <[email protected]> [3.13+] Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: stop sched scan before associationDavid Spinadel1-0/+3
Stop sched scan on bss_info_changed if !idle to avoid sched scan during association. Signed-off-by: David Spinadel <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: notify sched scan complete from stop routineDavid Spinadel3-4/+7
Add an option to notify mac80211 about sched scan complete from iwl_mvm_stop_sched_scan(), to enable this notification when the stop was called from within the driver. Signed-off-by: David Spinadel <[email protected]> Reviewed-by: Alexander Bondar <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: mvm: add channel 14 to the low band listEran Harary1-2/+2
in family 8000: additional channel 14 added to the low band list. now the number of channels in the low band is 15. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Dor Shaish <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: pcie: try to get ownership several timesEmmanuel Grumbach1-10/+16
Some races with the hardware can happen when we take ownership of the device. Don't give up after the first try. Cc: <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: 8000: add default NVM file name in family 8000Eran Harary6-8/+18
The 8000 family products need a file on the file system which is used as NVM. This file is a must, if no filename is supplied as module parameter, use a default filename. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Dor Shaish <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: dvm: don't use _ni mac80211's callbacksEmmanuel Grumbach2-3/+3
This is not needed since the PCIe layer disables the bottom halves before it calls the op_mode. Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-11iwlwifi: add missing trailing newlines to debug messagesJohannes Berg12-48/+47
All messages should have a trailing newline, add all the missing ones. Also make all messages constants, replacing the single one that pointlessly used a variable. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-08Merge branch 'for-john' of ↵John W. Linville30-291/+507
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
2014-05-08Merge branch 'master' of ↵John W. Linville8-53/+53
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
2014-05-07rtl8187: make CTS-to-self protection workAndrea Merello1-1/+8
CTS protection was not working properly because the HW needs RTS flag to be asserted, and it need also RTS duration field to be filled with CTS-to-self duration. This patch makes the driver to do this. Signed-off-by: Andrea Merello <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07rtl8180: make CTS-to-self protection workAndrea Merello1-5/+10
CTS protection was not working properly because the HW still need RTS flag to be asserted, and it need also RTS rate field to be set with CTS-to-self rate and RTS duration field to be filled with CTS-to-self duration. This patch makes the driver to do this. Signed-off-by: Andrea Merello <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07rtl8180: report mac80211 short preamble RX flagAndrea Merello1-0/+2
This patch make it possible to mac80211 to know whether a frame has been received with short preamble. It simply checks for the "splcp" flag in the RX status descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211 rx status structure. Signed-off-by: Andrea Merello <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07rtl8187: report mac80211 short preamble RX flagAndrea Merello1-0/+2
This patch make it possible to mac80211 to know whether a frame has been received with short preamble. It simply checks for the "splcp" flag in the RX status descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211 rx status structure. Signed-off-by: Andrea Merello <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07ath9k: Allow platform override without EEPROM overrideHelmut Schaa1-1/+1
Add a new platform data flag "use_eeprom" that indicates that the eeprom found on the card itself should be used instead of the one present in the platform data. This allows to override the MAC address of a PCI card while preserving the eeprom data from the card itself. The default behavior is preserved. Signed-off-by: Helmut Schaa <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07mwifiex: add HT operation IE in TDLS setup confirmAvinash Patil4-0/+97
This patch adds support to populate HT operatation IE in TDLS setup confirm command. This is required for setting wider bandwidths for TDLS operations. Signed-off-by: Avinash Patil <[email protected]> Signed-off-by: Bing Zhao <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07mwifiex: disable TDLS link upon tear down eventAvinash Patil2-0/+51
This patch adds code to disable TDLS link upon reception of TDLS teardown event from peer. Teardown event can happen either because of TDLS teardown packet from peer or internal timeout configured during TDLS setup. Event is propogated to cfg80211 so that userspace application can take appropriate action. Signed-off-by: Avinash Patil <[email protected]> Signed-off-by: Bing Zhao <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07mwifiex: configure inactivity timeout for TDLS linkAvinash Patil2-0/+15
This patch adds configuration timeout for TDLS link. This is configuered at the time of TDLS link configuration. If TDLS link is inactive for more than timeout, FW will tear this link. Signed-off-by: Avinash Patil <[email protected]> Signed-off-by: Bing Zhao <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-07iwlwifi: pcie: disable interrupts upon PCIe allocEmmanuel Grumbach1-4/+6
In case RFKILL is in KILL position, the NIC will issue an interrupt straight away. This interrupt won't be sent because it is masked in the hardware. But if our interrupt service routine is called for another reason (SHARED_IRQ), then we'll look at the interrupt cause and service it. This can cause bad things if we are not ready yet. Explicitly clean the interrupt cause register to make sure we won't service anything before we are ready to. Cc: <[email protected]> [3.14] Reported-and-tested-by: Alexander Monakov <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-07iwlwifi: mvm: rs: enable MCS9 for TxEyal Shapira1-8/+0
After fixes to the rs algorithm reenable MCS9. Signed-off-by: Eyal Shapira <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: fix sparse warning when _DEBUGFS isn't setEmmanuel Grumbach1-0/+2
Since the declaration of iwl_mvm_fw_error_rxf_dump and iwl_mvm_fw_error_sram_dump is under ifdef CONFIG_IWLWIFI_DEBUGFS, do the same for their implementation. Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: implement mac80211's flush callbackEmmanuel Grumbach1-0/+29
This allows mac80211 to flush the Tx queues before it sends critical management frames. Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi:mvm: Add AP/GO channel switch supportAndrei Otcheretianski5-2/+60
Publish WIPHY_FLAG_HAS_CHANNEL_SWITCH if the fw supports newly introduced IWL_UCODE_TLV_API_CSA_FLOW. When CSA starts, save the switching vif inside mvm and during the CSA period configure fw with a new beacon after each beacon transmission in order to update the csa counters. Also, handle correctly the CSA unbind-bind flow which is triggered by mac80211 when the actual channel switch happens. Signed-off-by: Andrei Otcheretianski <[email protected]> Reviewed-by: Luciano Coelho <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: wait for d0i3 exit in some more ampdu actionsEliad Peller1-3/+15
Some ampdu actions change queues by direct target access. Since the bus is disabled in d0i3, make sure to exit d0i3 before handling these actions. Signed-off-by: Eliad Peller <[email protected]> Reviewed-by: Arik Nemtsov <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm/pcie: capture last commands on firmware errorJohannes Berg7-21/+151
When a firmware error occurs, capture the last 32 commands (which are still in memory) in the error dump debugfs file. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: do no sched scan while associatedDavid Spinadel3-0/+27
Currently the FW doesn't support sched scan while associated, Prevent it. Signed-off-by: David Spinadel <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Reviewed-by: Luciano Coelho <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06ath9k_hw: get QCA953x WMAC revision via platform_dataFelix Fietkau1-0/+2
The SREV register in the WMAC register space does not contain the chip revision, so it needs to be passed in from the kernel. With an updated kernel, this fixes tx gain table selection. Signed-off-by: Felix Fietkau <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-06RTL8192CU: Increase max APFM_ONMAC polling countAndy Spencer1-1/+1
With certain hardware combinations the poll interval is exceeded before initialization completes. Tested on a MacBookPro10,1 using a Sabrent USB-A11N USB adapter. Signed-off-by: Andy Spencer <[email protected]> Acked-by: Larry Finger <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-06ath9k: Advertise support for AP mode channel width changesRajkumar Manoharan1-1/+2
This will enable AP mode to change channel width dynamically based on 20/40 intolerance report sent by associated client. Signed-off-by: Rajkumar Manoharan <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-06ath9k: Prevent divide-by-zero upon bad beacon_interval.Ben Greear2-4/+5
A similar patch fixed crashes seen on an ath9k system when testing against a broken ath10k AP. This patch is slightly less protective, but probably will do the job and is less redundant. Signed-off-by: Ben Greear <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2014-05-06iwlwifi: pcie: get rid of q->n_bdJohannes Berg4-53/+45
This variable always tracks a constant value (256) so there's no need to have it. Removing it simplifies code generation, reducing the .text size (by about 240 bytes on x86-64.) Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: pcie: use bool for iwl_pcie_txq_build_tfd() argumentJohannes Berg1-7/+7
The 'reset' argument is clearly a boolean, so use bool instead of u8 with 0/1 values. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: make LED support optionalJohannes Berg6-6/+38
If there's no LED on the system, it doesn't make a lot of sense to include close to 4k of LED-related code (mostly in mac80211), so instead of forcing LED support into the kernel, don't build iwlwifi/mac80211 LED support if there's no LED class support. Signed-off-by: Johannes Berg <[email protected]> Reviewed-by: EliadX Peller <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: fix bug in parse_nvm_sectionsEran Harary1-1/+1
The old code checks if hw_section_num is valid while the right thing to do is to check if section[hw_section_num].data is valid. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Liad Kaufman <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: select the MAC address according to priorityEran Harary2-9/+46
For family 8000 products, the driver should take the MAC address from the mac_override section and only if this section is empty it should take it from the HW section. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: Prioritize external nvm values on top of the OTP valuesEran Harary1-8/+10
Read first the nvm sections from the OTP, then read the nvm sections from the external file and override the OTP values (if there were any values in the OTP). Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Dor Shaish <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: prevent nic to powered up at driver loadEran Harary5-9/+18
A few devices aren't allowed to be powered up at driver load time. Add "power_up_nic_in_init" flag to iwl_cfg structure to customize the load flow according to the device. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: fix bug with OTP memory sizeEran Harary5-6/+8
OTP size changed in family 7000 and in family 8000. Signed-off-by: Eran Harary <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: remove useless variableJohannes Berg1-6/+3
There's no need to use a variable just to return the result of another function call at the end of a function, remove it. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: rs: choose correct expected tpt tableEyal Shapira1-1/+1
The expected throughput table used when estimating a new column depends on the channel bandwidth. When switching from legacy to siso or mimo the wrong expected throughput table was used as it was chosen based on the the channel bandwidth in legacy which is always 20Mhz. Instead it should be chosen based on the current sta bandwidth which could be also 40Mhz or 80Mhz. When enabling MCS9 this bug leads to a problem where the max expected throughput of the siso or mimo column is 0 as MCS9 isn't supported in 20Mhz. This in turns prevents switching to siso or mimo. Fix this by using the sta bandwidth when deciding which table to choose. Signed-off-by: Eyal Shapira <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: rs: avoid TPC while in search cycleEyal Shapira1-1/+2
TPC is a power optimization which should only be attempted when we're in the "stay in column" state after we've locked onto an optimal rate. Signed-off-by: Eyal Shapira <[email protected]> Reviewed-by: Eliad Peller <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: rs: don't allow TPC when power save is disabledEyal Shapira1-4/+9
Currently we were checking only if the driver power_scheme is set to CAM. TPC shouldn't be enabled also when disabling powersave on the interface (e.g. iw wlan0 set power_save off) which may occur even if power_scheme wasn't set to CAM. Signed-off-by: Eyal Shapira <[email protected]> Reviewed-by: Eliad Peller <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
2014-05-06iwlwifi: mvm: rs: overhaul rs_get_best_rateEyal Shapira1-86/+31
rs_get_best_rate determines the optimal rate to try in a new Tx column. Currently we were sometimes trying a too high rate which would lead us to fail and avoid switching to the new column despite it having a potential to be better. Change the logic to try and find the first rate which would exceed the current actual throughput or be more aggressive if the success ratio is good. Signed-off-by: Eyal Shapira <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]>
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