Commit 414adede authored by Ilan Peer's avatar Ilan Peer Committed by Johannes Berg
Browse files

wifi: iwlwifi: mvm: Add debugfs entry for triggering internal MLO scan 



Signed-off-by: default avatarIlan Peer <ilan.peer@intel.com>
Signed-off-by: default avatarMiri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240319100755.3dd3e8c42c27.I9434dc641b837601c72f10684fbfad2c0fb31a99@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 38b3998d

drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c

+56 −0
Original line number Diff line number Diff line
@@ -692,6 +692,60 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file, 
	return simple_read_from_buffer(user_buf, count, ppos, buf, len);

}



static ssize_t iwl_dbgfs_int_mlo_scan_write(struct ieee80211_vif *vif,

					    char *buf, size_t count,

					    loff_t *ppos)

{

	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

	struct iwl_mvm *mvm = mvmvif->mvm;

	u32 action;

	int ret;



	if (!vif->cfg.assoc || !ieee80211_vif_is_mld(vif))

		return -EINVAL;



	if (kstrtou32(buf, 0, &action))

		return -EINVAL;



	mutex_lock(&mvm->mutex);



	if (!action) {

		ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);

	} else if (action == 1) {

		struct ieee80211_channel *channels[IEEE80211_MLD_MAX_NUM_LINKS];

		unsigned long usable_links = ieee80211_vif_usable_links(vif);

		size_t n_channels = 0;

		u8 link_id;



		rcu_read_lock();



		for_each_set_bit(link_id, &usable_links,

				 IEEE80211_MLD_MAX_NUM_LINKS) {

			struct ieee80211_bss_conf *link_conf =

				rcu_dereference(vif->link_conf[link_id]);



			if (WARN_ON_ONCE(!link_conf))

				continue;



			channels[n_channels++] = link_conf->chanreq.oper.chan;

		}



		rcu_read_unlock();



		if (n_channels)

			ret = iwl_mvm_int_mlo_scan_start(mvm, vif, channels,

							 n_channels);

		else

			ret = -EINVAL;

	} else {

		ret = -EINVAL;

	}



	mutex_unlock(&mvm->mutex);



	return ret ?: count;

}



#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \

	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)

#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
@@ -711,6 +765,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20); 
MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);

MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);

MVM_DEBUGFS_WRITE_FILE_OPS(int_mlo_scan, 32);



void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif)

{
@@ -738,6 +793,7 @@ void iwl_mvm_vif_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 
	MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600);

	MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600);

	MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400);

	MVM_DEBUGFS_ADD_FILE_VIF(int_mlo_scan, mvmvif->dbgfs_dir, 0200);



	if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&

	    mvmvif == mvm->bf_allowed_vif)