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iwlwifi: mvm: abort scan on sched_scan request

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A scheduled scan is a more persistent setting and should take priority
over temporary regular scans. Abort the regular when a sched_scan
request arrives and then request the sched_scan.

The kernel API allows sending a sched_scan without canceling a regular
scan in progress, so this is our way to abstract the FW's limitations.

Make the scan-cancel Rx handler async and flush after invocation to
ensure new scans can't creep in before it.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Arik Nemtsov
2014-02-10 12:49:39 +02:00
committed by Emmanuel Grumbach
parent 33ea27f66a
commit 91b80256b6
4 changed files with 33 additions and 14 deletions
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2
drivers/net/wireless/iwlwifi/mvm/ops.c
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@@ -226,7 +226,7 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
iwl_mvm_rx_scan_offload_complete_notif, true),
RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_sched_scan_results,