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path: root/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
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2008-08-04iwlwifi: rename iwl-4695-rs to iwl-agn-rsTomas Winkler
This patch renames iwl-4965-rs to iwl-agn-rs as it provides rate scale capability for all AGN capable iwlwifi drivers. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-07-14iwlwifi: rs always set lq_sta->privTomas Winkler
This patch fixes printk NULL pointer exceptions in rs code. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-30iwlwifi: Remove unnecessary codeAbhijeet Kolekar
Removed unnecessary goto. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-30iwlwifi: remove obsolete lq_ready useRon Rindjunsky
This patch removes the use of lq_ready, once used to sync between link quality commands to avoid race conditions, but no longer needed as bss_info_changed is in use. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14mac80211: add helpers for frame control testingHarvey Harrison
A few general categories: 1) ieee80211_has_* tests if particular fctl bits are set, the helpers are de in the same order as the fctl defines: A combined _has_a4 was also added to test when both FROMDS and TODS are set. 2) ieee80211_is_* is meant to test whether the frame control is of a certain ftype - data, mgmt, ctl, and two special helpers _is_data_qos, _is_data_pres which also test a subset of the stype space. When testing for a particular stype applicable only to one ftype, functions like ieee80211_is_ack have been added. Note that the ftype is also being checked in these helpers. They have been added for all mgmt and ctl stypes in the same order as the STYPE defines. 3) ieee80211_get_* is meant to take a struct ieee80211_hdr * and returns a pointer to somewhere in the struct, see get_SA, get_DA, get_qos_ctl. The intel wireless drivers had helpers that used this namespace, convert the all to use the new helpers and remove the byteshifting as they were defined in cpu-order rather than little-endian. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14iwlwifi: general code clean upEmmanuel Grumbach
This patch cleans up iwlwifi's code: Add missing include, remove empty lines etc... Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14iwlwifi: move rate helpers to iwlcoreTomas Winkler
This patch moves rate helpers to iwlcore. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14iwlwifi: fix allow iwlwifi to aggregate according to tid loadRon Rindjunsky
This fix opens back the aggregation decision path for iwlwifi. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14iwlwifi: use ieee80211_conf to examine rate capabilitiesRon Rindjunsky
This patch switches the use of internal iwlwifi structure with ieee80211_conf in order to examine ht rate capabilities. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14iwlwifi: removing IWL4965_HT configRon Rindjunsky
This patch removes CONFIG_IWL4965_HT #ifdefs for iwl 4965 and 5000. 11n feature is stable in those drivers and its mode of operation is determined in mac80211, so this dependency is not needed any more. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-10Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tg3.c drivers/net/wireless/rt2x00/rt2x00dev.c net/mac80211/ieee80211_i.h
2008-06-03iwlwifi: add frame count limit to link quality commandTomas Winkler
This patch adds frame count limit to link quality host command. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03iwlwifi: fix in-column rate scalingGuy Cohen
This patch fixes cases that the code raised or didn't decrease the rate although the success ratio was not good. Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-28iwlwifi: fix rate scale TLC column selection bugGuy Cohen
This patch fixes a case that a wrong maximal rate is selected when searching for better configurations. Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-28iwlwifi: fix exit from stay_in_table stateGuy Cohen
When exiting from stay in table state (e.g. timer expiration), all the statistics are reset and the RS flow should not continue but only after enough statistics are collected again. Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21mac80211: move TX info into skb->cbJohannes Berg
This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21mac80211: use rate index in TX controlJohannes Berg
This patch modifies struct ieee80211_tx_control to give band info and the rate index (instead of rate pointers) to drivers. This mostly serves to reduce the TX control structure size to make it fit into skb->cb so that the fragmentation code can put it there and we can think about passing it to drivers that way in the future. The rt2x00 driver update was done by Ivo, thanks. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21iwlwifi: don't switch to SGI if not supported by APEmmanuel Grumbach
This patch fixes SGI support. RS didn't look at the capabilities of the AP before switching to SGI, this should lead to a stall in the traffic with an AP that doesn't support SGI. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21iwlwifi: refactor ieee80211_get_qos_ctrlTomas Winkler
This patch refactors ieee80211_get_qos_ctrl function and its usage in iwlwifi drivers. Function is moved as inline into iwl-helpers.h. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21iwlwifi: move more station managment into iwl-sta.cTomas Winkler
This patch moves station management functions into iwl-sta.c (iwlcore). Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21iwlwifi: remove 4965 from iwl4965_rate_infoTomas Winkler
This patch removes 4965 from iwl4965_rate_info structure and associated variables. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-15Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2008-05-15Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-4965-rs.c drivers/net/wireless/rt2x00/rt61pci.c
2008-05-14iwlwifi: move per driverdebug_level to per deviceEster Kummer
This patch ports the debug_level to iwl_priv and changes the format of the debug prints. Signed-off-by: Ester Kummer <ester.kummer@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-14mac80211: proper STA info lockingJohannes Berg
As discussed earlier, we can unify locking in struct sta_info and use just a single spinlock protecting all members of the structure that need protection. Many don't, but one of the especially bad ones is the 'flags' member that can currently be clobbered when RX and TX is being processed on different CPUs at the same time. Because having four spinlocks for different, mostly exclusive parts of a single structure is overkill, this patch also kills the ampdu and mesh plink spinlocks and uses just a single one for everything. Because none of the spinlocks are nested, this is safe. It remains to be seen whether or not we should make the sta flags use atomic bit operations instead, for now though this is a safe thing and using atomic operations instead will be very simple using the new static inline functions this patch introduces for accessing sta->flags. Since spin_lock_bh() is used with this lock, there shouldn't be any contention even if aggregation is enabled at around the same time as both requires frame transmission/reception which is in a bh context. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Tomas Winkler <tomasw@gmail.com> Cc: Ron Rindjunsky <ron.rindjunsky@intel.com> Cc: Luis Carlos Cobo <luisca@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-12iwlwifi: fix compile error when CONFIG_MAC80211_DEBUGFS is not selectedZhu Yi
Make iwl4965_lq_sta->drv available even without CONFIG_MAC80211_DEBUGFS. Signed-off-by: Yi Zhu <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: rename iwl-4965.h to iwl-dev.hTomas Winkler
This patch renames iwl-4965.h to iwl-dev.h Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: more RS improvementsGuy Cohen
Main changes: 1. no need to re-calculate expected_tpt when only toggling antenna 2. changing the code to be more strict on input and status of variables 3. enhanced debug prints 4. move to search table only if improving tpt (don't move if SR is improved but tpt is not) Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: rate sacaling fixesGuy Cohen
1. Fixing support for tx in antenna C 2. Enable stay_in_column expiration after 2 seconds Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: rs fix wrong parenthesizing in rs_get_lower_rate functionGuy Cohen
Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: rate scale restructure toggle_antenna functionsGuy Cohen
This patch add support for toggeling of A/B/C and AB/BC/AC antennas Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: rate scale module cleanupsGuy Cohen
This patch does following changes 1. rs_get_expected_tpt_table: changed get to set 2. changed IWL_DEBUG_HT to IWL_DEBUG_RATE as appropriate 3. changed rs_get_supported_rates to be returning value function Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: TLC modificationsGuy Cohen
1. Merge TLC fixes from AP support code 2. Remove struct iwl4965_rate 3. Misc code restructuring Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: HT antenna/chains overhaulGuy Cohen
1. This patch restructures rate scale algorithm to support SISO, MIMO2, MIMO3 2. It adds support for detailed valid TX and RX antennas settings 3. It removes few unesfull antenna definitions Signed-off-by: Guy Cohen <guy.cohen@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: remove includes to net/ieee80211.hTomas Winkler
this patch removes remaining includes to net/ieee80211.h Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07iwlwifi: move find station to iwl-sta.cTomas Winkler
This patch move iwl_find_station into iwl-sta.c file Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-16iwlwifi: move the creation of LQ host command to iwlcoreTomas Winkler
This patch moves creation of LQ host command to iwlcore from previous location in rate scaling. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08mac80211: rename filesJohannes Berg
This patch renames all mac80211 files (except ieee80211_i.h) to get rid of the useless ieee80211_ prefix. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08iwlwifi: Eliminate association from beaconTomas Winkler
This patch removes association from beacon using bss_info_change handler for association Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01iwlwifi: move rate registration to module loadReinette Chatre
Having rate registration during module load enables the use of error checking as well as reliable registration/unregistration pairing. Previously this was not possible as rate registration was done during _probe where _probe could be run for more than one device on the system. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-27mac80211: A-MPDU MLME use dynamic allocationRon Rindjunsky
This patch alters the A-MPDU MLME in sta_info to use dynamic allocation, thus drastically improving memory usage - from a constant ~2 Kbyte in the previous (static) allocation to a lower limit of ~200 Byte and an upper limit of ~2 Kbyte. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25iwlwifi: move host command sending functions to core moduleTomas Winkler
1. Host command sending functions moved from iwl4965-base.c to iwl-hcmd.c in iwlcore module 2. enqueue_hcmd function currently stays in iwl4965-base.c. It is invoked through the new 'utils' field in priv's ops. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Assaf Krauss <assaf.krauss@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25iwlwifi: rename struct iwl4965_priv to struct iwl_privTomas Winkler
This patch renames iwl4965_priv to iwl_priv. iwl_priv will be shared by more hw. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25iwlwifi: rename iwl-4965-debug.h back to iwl-debug.hTomas Winkler
This patch removes iwl-4965-debug.h to iwl-debug.h It will be used by more NICs Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-13iwlwifi: update copyright yearReinette Chatre
Also fix a copy and paste error in header of iwl-core.c. This file is not dual licensed. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07iwlwifi: fix locking unbalance in 4965 rate scaleTomas Winkler
This patch fixes locking unbalance after adding rcu locking for sta Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07iwlwifi: use mac80211_tx_control_flagsRon Rindjunsky
This patch makes use of the new mac80211_tx_control_flags and tx_rate to pass Tx data, regular and 11n, from the HW tx response into the rate scaling. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-06iwlwifi: Fix 52 rate report in rx statusTomas Winkler
This patch fixes reporting rate in RX packets in 52 band. The rate was updated from CCK rate index instead of OFDM rate 6M Most of the patch is collateral clean up Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-06mac80211: RCU-ify STA info structure accessJohannes Berg
This makes access to the STA hash table/list use RCU to protect against freeing of items. However, it's not a true RCU, the copy step is missing: whenever somebody changes a STA item it is simply updated. This is an existing race condition that is now somewhat understandable. This patch also fixes the race key freeing vs. STA destruction by making sure that sta_info_destroy() is always called under RTNL and frees the key. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-02-29cfg80211 API for channels/bitrates, mac80211 and driver conversionJohannes Berg
This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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