Commit Graph

23 Commits

Author SHA1 Message Date
Emmanuel Grumbach
51368bf792 iwlwifi: Update Copyright to 2014
Happy new year!

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-31 19:03:53 +02:00
Eyal Shapira
ca6f38ff4b iwlwifi: mvm: rs: avoid recalc of supported legacy rate mask
The supported legacy rate mask is initialized when rs
is initialized based on the remote peer supported rates.
There's no need to re mask it repeatedly with the supported
remote peer rates.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-17 19:39:54 +02:00
Eyal Shapira
8fc7c58c03 iwlwifi: mvm: rs: refactor building the LQ command
Simplify the code a bit more by extracting the rates table
building logic into a separate function and handle setting
a fixed rate for debug in a separate flow.
Also avoid using and saving ucode rate format in different
places. Instead use rs_rate struct and convert to ucode format
only when filling the rates table in the LQ command.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-17 19:39:53 +02:00
Eyal Shapira
b3b06a3254 iwlwifi: mvm: rs: overhaul search cycle state machine
Rewrite the search cycle state machine to use a more data
oriented approach where the different Tx columns (configs)
limitations and next columns to search are reprsented in
tables which are easy to change. This overhaul also includes
several major fixes:

1. Prevent going back to a specific Tx column in a search
cycle if it was already explored.

2. Avoid switching to a Tx column that doesn't have any chance
if it performs perfectly to beat the current throughput we're
getting.

These issues were degrading throughput as they were causing
switching to "bad" Tx columns.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:48 +02:00
Eyal Shapira
5aa335537a iwlwifi: mvm: rs: refactor to use rs_rate
Introduce rs_rate which represents a rate. Use this structure
instead of iwl_scale_tbl_info where we're dealing with a single
rate.
This avoids allocating the big iwl_scale_tbl_info structure
on the stack in several cases like converting to ucode rate
format or from ucode rate format.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:47 +02:00
Eyal Shapira
0c308e97d4 iwlwifi: mvm: rs: remove unused timestamp field
Remove this as it's unused.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:47 +02:00
Eyal Shapira
c48075d27d iwlwifi: mvm: rs: rename thresholds defines
Rename for clearer names.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:47 +02:00
Eyal Shapira
393b9e5b82 iwlwifi: mvm: stop using MIMO in case BT doesn't allow it
Switch to using the new btcoex decision api regarding MIMO and stop
accessing the internal btcoex structs.
In case MIMO should be disabled it would detect this upon the next
Tx and force a search. The search will switch to SISO on a antenna A
which isn't used by BT.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:46 +02:00
Eyal Shapira
a7b8b2ca91 iwlwifi: fix check for a single rx antenna
valid_rx_ant is a bitmask of available antennas and not the number
of Rx antennas. Use num_of_ant and remove duplicate definitions
in both dvm and mvm.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:05 +02:00
Eyal Shapira
b87c2179a7 iwlwifi: mvm: implement rate_update hook in rs
Re-initialize rs when we get a rate_update hook called which
happens when remote STA changes bandwidth or sends a VHT opmode
notification.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-09 22:29:03 +02:00
John W. Linville
87bc0728d4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
2013-11-04 14:51:28 -05:00
Eyal Shapira
6a524f487c iwlwifi: mvm: remove GF support in rs
mvm doesn't support HT GF so drop all relevant code in rs.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02 18:00:42 +02:00
Eyal Shapira
d310e4059f iwlwifi: mvm: support VHT in rs
Enable rs algorithm to use VHT rates and use 80Mhz.
This enables reaching VHT rates which wasn't possible.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02 18:00:41 +02:00
Eyal Shapira
4837b448df iwlwifi: mvm: remove rs FSM actions relevant only for 3 antennas
The XXX_SWITCH_ANTENNA1/2 actions keep track of switching between
3 single antennas or between 3 pairs in case of MIMO2 on a MIMO3 device.
As current and future chips will have at most 2 antennas drop these.
While at it also convert the actions into enums and cleanup
the code a bit.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02 18:00:33 +02:00
Joe Perches
b3818394cc iwlwifi: Remove extern from function prototypes
There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
2013-09-24 18:05:40 -07:00
Eyal Shapira
d972ab31b9 iwlwifi: mvm: remove MIMO3 from rate scale code
Current and future chips supported by mvm will only have a maximum
of 2 antennas so all the MIMO3 related code and states can be dropped.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:23:54 +02:00
Eyal Shapira
ab055ce9f5 iwlwifi: mvm: remove unused fields of iwl_rs_rate_info
Some more cleanups of unused fields and their initializations.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:32 +02:00
Eyal Shapira
ab3077009f iwlwifi: mvm: remove rate_scale_data debugfs entry
This isn't very informative and can be deduced from rate_scale_table.
Remove as a preparation for dropping iwl_rs_rate_info.ieee.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:09 +02:00
Eyal Shapira
977342bc3d iwlwifi: mvm: remove traffic load monitoring in rs
The traffic load monitoring isn't used anymore to decide whether
a Tx aggregation on a specific TID should be started.
No point in collecting these statistics. Remove the relevant code.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:32:17 +02:00
Johannes Berg
e126b5d9c5 iwlwifi: mvm: remove unneeded argument from iwl_mvm_tx_protection()
The LQ command argument isn't needed, it's always taken from the
station struct that's already passed, remove the argument.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-16 13:12:56 +03:00
Emmanuel Grumbach
36946ce69a iwlwifi: mvm: don't enable MIMO when BT is active
Another step in the rate control / BT Coex integration

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-04 13:13:29 +02:00
Eytan Lifshitz
9ee718aa92 iwlwifi: mvm: add thermal throttling and CT kill
In order to avoid NIC destruction due to high temperature,
CT kill will power down the NIC.

To avoid this, thermal throttling will decrease throughput
to prevent the NIC from reaching the temperature at which
CT kill is performed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-29 09:03:18 +02:00
Johannes Berg
8ca151b568 iwlwifi: add the MVM driver
Newer firmware revisions have a completely new
firmware API. This is the new driver for this
new API.

I've listed the people who directly contributed
code, but many others from various teams have
contributed in other ways.

Cc: Alexander Bondar <alexander.bondar@intel.com>
Cc: Amit Beka <amit.beka@intel.com>
Cc: Amnon Paz <amnonx.paz@intel.com>
Cc: Assaf Krauss <assaf.krauss@intel.com>
Cc: David Spinadel <david.spinadel@intel.com>
Cc: Dor Shaish <dor.shaish@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Eytan Lifshitz <eytan.lifshitz@intel.com>
Cc: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-01 11:27:15 +01:00