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nl80211/cfg80211: add a flag to negotiate for LMR feedback in NDP ranging 

Add a flag that indicates that the ISTA shall indicate support for
LMR feedback in NDP ranging negotiation.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210409123755.eff546283504.I2606161e700ac24d94d0b50c8edcdedd4c0395c2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Avraham Stern 2021-04-09 12:40:25 +03:00 committed by Johannes Berg
parent efce5b50ba
commit 73807523f9
4 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/net/cfg80211.h
View File

@ -3521,6 +3521,8 @@ struct cfg80211_pmsr_result {
* @non_trigger_based: use non trigger based ranging for the measurement
* If neither @trigger_based nor @non_trigger_based is set,
* EDCA based ranging will be used.
* @lmr_feedback: negotiate for I2R LMR feedback. Only valid if either
* @trigger_based or @non_trigger_based is set.
*
* See also nl80211 for the respective attribute documentation.
*/
@ -3532,7 +3534,8 @@ struct cfg80211_pmsr_ftm_request_peer {
request_lci:1,
request_civicloc:1,
trigger_based:1,
non_trigger_based:1;
non_trigger_based:1,
lmr_feedback:1;
u8 num_bursts_exp;
u8 burst_duration;
u8 ftms_per_burst;

4
include/uapi/linux/nl80211.h
View File

@ -6896,6 +6896,9 @@ enum nl80211_peer_measurement_ftm_capa {
* if neither %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED nor
* %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set, EDCA based
* ranging will be used.
* @NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK: negotiate for LMR feedback. Only
* valid if either %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED or
* %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@ -6914,6 +6917,7 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC,
NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED,
NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED,
NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,

1
net/wireless/nl80211.c
View File

@ -309,6 +309,7 @@ nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC] = { .type = NLA_FLAG },
[NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG },
[NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG },
[NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK] = { .type = NLA_FLAG },
};
static const struct nla_policy

12
net/wireless/pmsr.c
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2018 - 2019 Intel Corporation
* Copyright (C) 2018 - 2021 Intel Corporation
*/
#ifndef __PMSR_H
#define __PMSR_H
@ -158,6 +158,16 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
return -EINVAL;
}
out->ftm.lmr_feedback =
!!tb[NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK];
if (!out->ftm.trigger_based && !out->ftm.non_trigger_based &&
out->ftm.lmr_feedback) {
NL_SET_ERR_MSG_ATTR(info->extack,
tb[NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK],
"FTM: LMR feedback set for EDCA based ranging");
return -EINVAL;
}
return 0;
}