wifi: iwlwifi: mvm: support wider-bandwidth OFDMA

To support wider-bandwidth OFDMA we need to configure the
PHY context in the firmware, which will in turn configure
the DSP accordingly. Pass the relevant information down.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240218194912.ca666ede5dd6.I357972823d20e9045e2c97dbb7ac24fe9f5a6e41@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/d3.c

@@ -720,7 +720,7 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct ieee80211_chanctx_conf *ctx;
 	u8 chains_static, chains_dynamic;
-	struct cfg80211_chan_def chandef;
+	struct cfg80211_chan_def chandef, ap_def;
 	int ret, i;
 	struct iwl_binding_cmd_v1 binding_cmd = {};
 	struct iwl_time_quota_cmd quota_cmd = {};
@@ -742,12 +742,13 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return -EINVAL;
 	}
 	chandef = ctx->def;
+	ap_def = ctx->ap;
 	chains_static = ctx->rx_chains_static;
 	chains_dynamic = ctx->rx_chains_dynamic;
 	rcu_read_unlock();
 
 	ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
-				   chains_static, chains_dynamic);
+				   &ap_def, chains_static, chains_dynamic);
 	if (ret)
 		return ret;
 

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

@@ -592,7 +592,7 @@ static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
 
 	for_each_vif_active_link(vif, link_conf, link_id) {
 		struct ieee80211_chanctx_conf *chanctx_conf;
-		struct cfg80211_chan_def min_def;
+		struct cfg80211_chan_def min_def, ap_def;
 		struct iwl_mvm_phy_ctxt *phy_ctxt;
 		u8 chains_static, chains_dynamic;
 
@@ -606,6 +606,7 @@ static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
 		 * everything here and use it after unlocking
 		 */
 		min_def = chanctx_conf->min_def;
+		ap_def = chanctx_conf->ap;
 		chains_static = chanctx_conf->rx_chains_static;
 		chains_dynamic = chanctx_conf->rx_chains_dynamic;
 		rcu_read_unlock();
@@ -614,7 +615,7 @@ static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif *vif, char *buf,
 		if (!phy_ctxt)
 			continue;
 
-		ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &min_def,
+		ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &min_def, &ap_def,
 					       chains_static, chains_dynamic);
 	}
 

drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c

@@ -438,7 +438,7 @@ int iwl_mvm_ftm_start_responder(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	rcu_read_unlock();
 
 	phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
-	ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx.def,
+	ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx.def, &ctx.ap,
 				       ctx.rx_chains_static,
 				       ctx.rx_chains_dynamic);
 	if (ret)

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -1644,6 +1644,9 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 				     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
 	}
 
+	if (vif->p2p || iwl_fw_lookup_cmd_ver(mvm->fw, PHY_CONTEXT_CMD, 1) < 5)
+		vif->driver_flags |= IEEE80211_VIF_IGNORE_OFDMA_WIDER_BW;
+
 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
 		mvm->p2p_device_vif = vif;
 
@@ -4651,7 +4654,7 @@ static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
 	cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
 
 	return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
-				    &chandef, 1, 1);
+				    &chandef, NULL, 1, 1);
 }
 
 /* Execute the common part for MLD and non-MLD modes */
@@ -4772,7 +4775,7 @@ static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
 		goto out;
 	}
 
-	ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def,
+	ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap,
 				   ctx->rx_chains_static,
 				   ctx->rx_chains_dynamic);
 	if (ret) {
@@ -4850,7 +4853,7 @@ void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
 	}
 
 	iwl_mvm_bt_coex_vif_change(mvm);
-	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
+	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap,
 				 ctx->rx_chains_static,
 				 ctx->rx_chains_dynamic);
 

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

@@ -1810,9 +1810,11 @@ void iwl_mvm_rx_shared_mem_cfg_notif(struct iwl_mvm *mvm,
 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm);
 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			 const struct cfg80211_chan_def *chandef,
+			 const struct cfg80211_chan_def *ap,
 			 u8 chains_static, u8 chains_dynamic);
 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			     const struct cfg80211_chan_def *chandef,
+			     const struct cfg80211_chan_def *ap,
 			     u8 chains_static, u8 chains_dynamic);
 void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm,
 			  struct iwl_mvm_phy_ctxt *ctxt);

drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.c

@@ -198,12 +198,16 @@ int iwl_mvm_phy_send_rlc(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
 				  struct iwl_mvm_phy_ctxt *ctxt,
 				  const struct cfg80211_chan_def *chandef,
+				  const struct cfg80211_chan_def *ap,
 				  u8 chains_static, u8 chains_dynamic,
 				  u32 action)
 {
 	int ret;
 	int ver = iwl_fw_lookup_cmd_ver(mvm->fw, PHY_CONTEXT_CMD, 1);
 
+	if (ver < 5 || !ap || !ap->chan)
+		ap = NULL;
+
 	if (ver >= 3 && ver <= 5) {
 		struct iwl_phy_context_cmd cmd = {};
 
@@ -215,6 +219,11 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
 					  chains_static,
 					  chains_dynamic);
 
+		if (ap) {
+			cmd.v5.sbb_bandwidth = iwl_mvm_get_channel_width(ap);
+			cmd.v5.sbb_ctrl_channel_loc = iwl_mvm_get_ctrl_pos(ap);
+		}
+
 		ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD,
 					   0, sizeof(cmd), &cmd);
 	} else if (ver < 3) {
@@ -255,6 +264,7 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
  */
 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			 const struct cfg80211_chan_def *chandef,
+			 const struct cfg80211_chan_def *ap,
 			 u8 chains_static, u8 chains_dynamic)
 {
 	int ret;
@@ -267,7 +277,7 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 	ctxt->width = chandef->width;
 	ctxt->center_freq1 = chandef->center_freq1;
 
-	ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
+	ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, ap,
 				     chains_static, chains_dynamic,
 				     FW_CTXT_ACTION_ADD);
 
@@ -301,6 +311,7 @@ void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
  */
 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			     const struct cfg80211_chan_def *chandef,
+			     const struct cfg80211_chan_def *ap,
 			     u8 chains_static, u8 chains_dynamic)
 {
 	enum iwl_ctxt_action action = FW_CTXT_ACTION_MODIFY;
@@ -324,7 +335,7 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 		int ret;
 
 		/* ... remove it here ...*/
-		ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
+		ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, NULL,
 					     chains_static, chains_dynamic,
 					     FW_CTXT_ACTION_REMOVE);
 		if (ret)
@@ -338,7 +349,7 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 	ctxt->width = chandef->width;
 	ctxt->center_freq1 = chandef->center_freq1;
 
-	return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
+	return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, ap,
 				      chains_static, chains_dynamic,
 				      action);
 }
@@ -358,7 +369,7 @@ void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 
 	cfg80211_chandef_create(&chandef, ctxt->channel, NL80211_CHAN_NO_HT);
 
-	iwl_mvm_phy_ctxt_apply(mvm, ctxt, &chandef, 1, 1,
+	iwl_mvm_phy_ctxt_apply(mvm, ctxt, &chandef, NULL, 1, 1,
 			       FW_CTXT_ACTION_REMOVE);
 }