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wifi: cfg80211: add inform_bss op to update BSS

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This new function is called from within the inform_bss(_frame)_data
functions in order for the driver to update data that it is tracking.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230616094949.8d7781b0f965.I80041183072b75c081996a1a5a230b34aff5c668@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Benjamin Berg 2023-06-16 09:54:00 +03:00 committed by Johannes Berg
parent 6b7c93c143
commit 5db25290b7
4 changed files with 46 additions and 0 deletions
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13
include/net/cfg80211.h
View file

@ -2720,6 +2720,7 @@ enum cfg80211_signal_type {
* the BSS that requested the scan in which the beacon/probe was received.
* @chains: bitmask for filled values in @chain_signal.
* @chain_signal: per-chain signal strength of last received BSS in dBm.
* @drv_data: Data to be passed through to @inform_bss
*/
struct cfg80211_inform_bss {
struct ieee80211_channel *chan;
@ -2730,6 +2731,8 @@ struct cfg80211_inform_bss {
u8 parent_bssid[ETH_ALEN] __aligned(2);
u8 chains;
s8 chain_signal[IEEE80211_MAX_CHAINS];
void *drv_data;
};
/**
@ -4101,6 +4104,13 @@ struct mgmt_frame_regs {
*
* @change_bss: Modify parameters for a given BSS.
*
* @inform_bss: Called by cfg80211 while being informed about new BSS data
* for every BSS found within the reported data or frame. This is called
* from within the cfg8011 inform_bss handlers while holding the bss_lock.
* The data parameter is passed through from drv_data inside
* struct cfg80211_inform_bss.
* The new IE data for the BSS is explicitly passed.
*
* @set_txq_params: Set TX queue parameters
*
* @libertas_set_mesh_channel: Only for backward compatibility for libertas,
@ -4488,6 +4498,9 @@ struct cfg80211_ops {
int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
struct bss_parameters *params);
void (*inform_bss)(struct wiphy *wiphy, struct cfg80211_bss *bss,
const struct cfg80211_bss_ies *ies, void *data);
int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_txq_params *params);

12
net/wireless/rdev-ops.h
View file

@ -407,6 +407,18 @@ static inline int rdev_change_bss(struct cfg80211_registered_device *rdev,
return ret;
}
static inline void rdev_inform_bss(struct cfg80211_registered_device *rdev,
struct cfg80211_bss *bss,
const struct cfg80211_bss_ies *ies,
void *drv_data)
{
trace_rdev_inform_bss(&rdev->wiphy, bss);
if (rdev->ops->inform_bss)
rdev->ops->inform_bss(&rdev->wiphy, bss, ies, drv_data);
trace_rdev_return_void(&rdev->wiphy);
}
static inline int rdev_set_txq_params(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct ieee80211_txq_params *params)

4
net/wireless/scan.c
View file

@ -2027,6 +2027,8 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy,
if (!res)
goto drop;
rdev_inform_bss(rdev, &res->pub, ies, data->drv_data);
if (non_tx_data) {
/* this is a nontransmitting bss, we need to add it to
* transmitting bss' list if it is not there
@ -2502,6 +2504,8 @@ cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy,
if (!res)
goto drop;
rdev_inform_bss(rdev, &res->pub, ies, data->drv_data);
spin_unlock_bh(&rdev->bss_lock);
trace_cfg80211_return_bss(&res->pub);

17
net/wireless/trace.h
View file

@ -1159,6 +1159,23 @@ TRACE_EVENT(rdev_change_bss,
__entry->ap_isolate, __entry->ht_opmode)
);
TRACE_EVENT(rdev_inform_bss,
TP_PROTO(struct wiphy *wiphy, struct cfg80211_bss *bss),
TP_ARGS(wiphy, bss),
TP_STRUCT__entry(
WIPHY_ENTRY
MAC_ENTRY(bssid)
CHAN_ENTRY
),
TP_fast_assign(
WIPHY_ASSIGN;
MAC_ASSIGN(bssid, bss->bssid);
CHAN_ASSIGN(bss->channel);
),
TP_printk(WIPHY_PR_FMT ", %pM, " CHAN_PR_FMT,
WIPHY_PR_ARG, __entry->bssid, CHAN_PR_ARG)
);
TRACE_EVENT(rdev_set_txq_params,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
struct ieee80211_txq_params *params),