diff options
| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-11-10 11:10:15 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-11-24 08:30:32 +0200 |
| commit | 4500e13376a14d601a330cab034499ca3fff41bd (patch) | |
| tree | 0d48fb7a06921ec64ed1e40e48df9d8349043db2 /drivers/net/wireless/iwlwifi/mvm/mvm.h | |
| parent | dc88b4baa9d16fdf15f76b6277461e6d9e4eb8e6 (diff) | |
| download | blackbird-op-linux-4500e13376a14d601a330cab034499ca3fff41bd.tar.gz blackbird-op-linux-4500e13376a14d601a330cab034499ca3fff41bd.zip | |
iwlwifi: mvm: schedule CSA time event a bit before beacon 1
Instead of using a hardcoded number of TUs before beacon 0 as the time
to start the absence and actual channel switch, calculate it in
relation to the beacon interval. We use 10 TUs + beacon interval
before beacon 0 to target a bit before beacon 1. This gives us enough
time to switch to the new channel before the AP/GO switches.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/mvm.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mvm.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index 2816c6b9222b..99a25906bc92 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -87,12 +87,17 @@ /* A TimeUnit is 1024 microsecond */ #define MSEC_TO_TU(_msec) (_msec*1000/1024) -/* These values represent the number of TUs before CSA "beacon 0" TBTT - * when the CSA time-event needs to be scheduled to start. They must - * be big enough to ensure that we switch in time. +/* For GO, this value represents the number of TUs before CSA "beacon + * 0" TBTT when the CSA time-event needs to be scheduled to start. It + * must be big enough to ensure that we switch in time. */ #define IWL_MVM_CHANNEL_SWITCH_TIME_GO 40 -#define IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT 110 + +/* For client, this value represents the number of TUs before CSA + * "beacon 1" TBTT, instead. This is because we don't know when the + * GO/AP will be in the new channel, so we switch early enough. + */ +#define IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT 10 /* * This value (in TUs) is used to fine tune the CSA NoA end time which should |
