diff mbox series

[02/14] wifi: iwlwifi: mvm: exit EMLSR earlier if bss_param_ch_cnt is updated

Message ID 20241008072037.9c5ad120b937.Ibdde0b3770d0821e802009d4684b617220dd6e1a@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series iwlwifi updates - 08-10-2024 | expand

Commit Message

Korenblit, Miriam Rachel Oct. 8, 2024, 4:25 a.m. UTC 
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

If we lose beacons and bss_param_ch_cnt gets updated on the other link,
we need to exit EMLSR earlier.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
This needs "wifi: mac80211: make bss_param_ch_cnt available for the low
level driver"

 drivers/net/wireless/intel/iwlwifi/mvm/constants.h |  3 ++-
 drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c  | 13 ++++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h
index ddf484027d4f..fdccdea918bf 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/constants.h
@@ -17,7 +17,8 @@ 
 #define IWL_MVM_TRIGGER_LINK_SEL_TIME_SEC	30
 #define IWL_MVM_TPT_COUNT_WINDOW_SEC		5
 #define IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_2_LINKS	5
-#define IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH	11
+#define IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH	15
+#define IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_BSS_PARAM_CHANGED	11
 
 #define IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT	(100 * USEC_PER_MSEC)
 #define IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT	(100 * USEC_PER_MSEC)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index a7a10e716e65..9a43df49493f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -1605,6 +1605,7 @@  iwl_mvm_handle_missed_beacons_notif(struct iwl_mvm *mvm,
 					       0);
 	u8 new_notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
 						   MISSED_BEACONS_NOTIF, 0);
+	struct ieee80211_bss_conf *bss_conf;
 
 	/* If the firmware uses the new notification (from MAC_CONF_GROUP),
 	 * refer to that notification's version.
@@ -1617,9 +1618,9 @@  iwl_mvm_handle_missed_beacons_notif(struct iwl_mvm *mvm,
 	/* before version four the ID in the notification refers to mac ID */
 	if (notif_ver < 4) {
 		vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false);
+		bss_conf = &vif->bss_conf;
 	} else {
-		struct ieee80211_bss_conf *bss_conf =
-			iwl_mvm_rcu_fw_link_id_to_link_conf(mvm, id, false);
+		bss_conf = iwl_mvm_rcu_fw_link_id_to_link_conf(mvm, id, false);
 
 		if (!bss_conf)
 			return;
@@ -1664,6 +1665,8 @@  iwl_mvm_handle_missed_beacons_notif(struct iwl_mvm *mvm,
 				 rx_missed_bcon, rx_missed_bcon_since_rx);
 		}
 	} else if (link_id >= 0 && hweight16(vif->active_links) > 1) {
+		u32 bss_param_ch_cnt_link_id =
+			bss_conf->bss_param_ch_cnt_link_id;
 		u32 scnd_lnk_bcn_lost = 0;
 
 		if (notif_ver >= 5 &&
@@ -1677,10 +1680,14 @@  iwl_mvm_handle_missed_beacons_notif(struct iwl_mvm *mvm,
 		/* Exit EMLSR if we lost more than
 		 * IWL_MVM_MISSED_BEACONS_EXIT_ESR_THRESH beacons on boths links
 		 * OR more than IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH on any link.
+		 * OR more than IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_BSS_PARAM_CHANGED
+		 * and the link's bss_param_ch_count has changed.
 		 */
 		if ((rx_missed_bcon >= IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_2_LINKS &&
 		     scnd_lnk_bcn_lost >= IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_2_LINKS) ||
-		    rx_missed_bcon >= IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH)
+		    rx_missed_bcon >= IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH ||
+		    (bss_param_ch_cnt_link_id != link_id &&
+		     rx_missed_bcon >= IWL_MVM_BCN_LOSS_EXIT_ESR_THRESH_BSS_PARAM_CHANGED))
 			iwl_mvm_exit_esr(mvm, vif,
 					 IWL_MVM_ESR_EXIT_MISSED_BEACON,
 					 iwl_mvm_get_primary_link(vif));