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iwiwifi: mvm: Fix FW scan concurrency support assumptions

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- The FW supports up to 4 concurrent scans, so adjust the definitions
  accordingly.
- Only a single periodic scan is supported, so enforce it in the code.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Ilan Peer 2019-01-09 14:05:59 +02:00 committed by Luca Coelho
parent 971377e670
commit e2b7f83cc8
2 changed files with 10 additions and 5 deletions
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6
drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
View File

@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -434,7 +434,7 @@ struct iwl_periodic_scan_complete {
/* The maximum of either of these cannot exceed 8, because we use an
* 8-bit mask (see IWL_MVM_SCAN_MASK in mvm.h).
*/
#define IWL_MVM_MAX_UMAC_SCANS 8
#define IWL_MVM_MAX_UMAC_SCANS 4
#define IWL_MVM_MAX_LMAC_SCANS 1
enum scan_config_flags {

9
drivers/net/wireless/intel/iwlwifi/mvm/scan.c
View File

@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -1580,6 +1580,11 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type)
* scheduled scan before starting a normal scan.
*/
/* FW supports only a single periodic scan */
if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) &&
mvm->scan_status & (IWL_MVM_SCAN_SCHED | IWL_MVM_SCAN_NETDETECT))
return -EBUSY;
if (iwl_mvm_num_scans(mvm) < mvm->max_scans)
return 0;