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iwlwifi: mvm: Configure EBS scan ratio

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This configuration defines the ratio between number of scan iterations
where EBS is involved to those where it is not.
This configuration was left unconfigured due to inaccurate documentation.
Fix documentation as well.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Haim Dreyfuss 2014-12-01 23:30:07 +02:00 committed by Emmanuel Grumbach
parent d9f1fc209f
commit a1ed402576
2 changed files with 11 additions and 2 deletions
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7
drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
View File

@ -653,8 +653,11 @@ enum iwl_scan_channel_flags {
};
/* iwl_scan_channel_opt - CHANNEL_OPTIMIZATION_API_S
* @flags: enum iwl_scan_channel_flgs
* @non_ebs_ratio: how many regular scan iteration before EBS
* @flags: enum iwl_scan_channel_flags
* @non_ebs_ratio: defines the ratio of number of scan iterations where EBS is
* involved.
* 1 - EBS is disabled.
* 2 - every second scan will be full scan(and so on).
*/
struct iwl_scan_channel_opt {
__le16 flags;

6
drivers/net/wireless/iwlwifi/mvm/scan.c
View File

@ -72,6 +72,8 @@
#define IWL_PLCP_QUIET_THRESH 1
#define IWL_ACTIVE_QUIET_TIME 10
#define IWL_DENSE_EBS_SCAN_RATIO 5
#define IWL_SPARSE_EBS_SCAN_RATIO 1
struct iwl_mvm_scan_params {
u32 max_out_time;
@ -1296,10 +1298,14 @@ iwl_mvm_build_generic_unified_scan_cmd(struct iwl_mvm *mvm,
cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
cmd->channel_opt[0].non_ebs_ratio =
cpu_to_le16(IWL_DENSE_EBS_SCAN_RATIO);
cmd->channel_opt[1].flags =
cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
cmd->channel_opt[1].non_ebs_ratio =
cpu_to_le16(IWL_SPARSE_EBS_SCAN_RATIO);
}
if (iwl_mvm_rrm_scan_needed(mvm))