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wifi: mac80211: add link_sta_statistics ops to fill link station statistics

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Currently, link station statistics for MLO are filled by mac80211.
But there are some statistics that kept by mac80211 might not be
accurate, so let the driver pre-fill the link statistics. The driver
can fill the values (indicating which field is filled, by setting the
filled bitmapin in link_station structure).
Statistics that driver don't fill are filled by mac80211.

Hence, add link_sta_statistics callback to fill link station statistics
for MLO in sta_set_link_sinfo() by drivers.

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Link: https://patch.msgid.link/20250528054420.3050133-11-quic_sarishar@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Sarika Sharma
2025-05-28 11:14:20 +05:30
committed by Johannes Berg
parent 5e9129f574
commit 4cb1ce7e25
4 changed files with 62 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/net/mac80211.h
View File

@@ -4133,6 +4133,15 @@ struct ieee80211_prep_tx_info {
* Statistics that the driver doesn't fill will be filled by mac80211.
* The callback can sleep.
*
* @link_sta_statistics: Get link statistics for this station. For example with
* beacon filtering, the statistics kept by mac80211 might not be
* accurate, so let the driver pre-fill the statistics. The driver can
* fill most of the values (indicating which by setting the filled
* bitmap), but not all of them make sense - see the source for which
* ones are possible.
* Statistics that the driver doesn't fill will be filled by mac80211.
* The callback can sleep.
*
* @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
* bursting) for a hardware TX queue.
* Returns a negative error code on failure.
@@ -4627,6 +4636,10 @@ struct ieee80211_ops {
s64 offset);
void (*reset_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
int (*tx_last_beacon)(struct ieee80211_hw *hw);
void (*link_sta_statistics)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_link_sta *link_sta,
struct link_station_info *link_sinfo);
/**
* @ampdu_action:

19
net/mac80211/driver-ops.h
View File

@@ -631,6 +631,25 @@ static inline void drv_sta_statistics(struct ieee80211_local *local,
trace_drv_return_void(local);
}
static inline void drv_link_sta_statistics(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_sta *link_sta,
struct link_station_info *link_sinfo)
{
might_sleep();
lockdep_assert_wiphy(local->hw.wiphy);
sdata = get_bss_sdata(sdata);
if (!check_sdata_in_driver(sdata))
return;
trace_drv_link_sta_statistics(local, sdata, link_sta);
if (local->ops->link_sta_statistics)
local->ops->link_sta_statistics(&local->hw, &sdata->vif,
link_sta, link_sinfo);
trace_drv_return_void(local);
}
int drv_conf_tx(struct ieee80211_local *local,
struct ieee80211_link_data *link, u16 ac,
const struct ieee80211_tx_queue_params *params);

6
net/mac80211/sta_info.c
View File

@@ -2744,9 +2744,9 @@ static void sta_set_link_sinfo(struct sta_info *sta,
ether_addr_copy(link_sinfo->addr, link_sta_info->addr);
/* TODO: add drv_link_sta_statistics() ops to fill link_station
* statistics of station.
*/
drv_link_sta_statistics(sta->local, sdata,
link_sta_info->pub,
link_sinfo);
link_sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
BIT_ULL(NL80211_STA_INFO_BSS_PARAM) |

27
net/mac80211/trace.h
View File

@@ -1002,6 +1002,33 @@ DEFINE_EVENT(sta_event, drv_sta_statistics,
TP_ARGS(local, sdata, sta)
);
TRACE_EVENT(drv_link_sta_statistics,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_sta *link_sta),
TP_ARGS(local, sdata, link_sta),
TP_STRUCT__entry(
LOCAL_ENTRY
VIF_ENTRY
STA_ENTRY
__field(u32, link_id)
),
TP_fast_assign(
LOCAL_ASSIGN;
VIF_ASSIGN;
STA_NAMED_ASSIGN(link_sta->sta);
__entry->link_id = link_sta->link_id;
),
TP_printk(
LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " (link %d)",
LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->link_id
)
);
DEFINE_EVENT(sta_event, drv_sta_add,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,