1 files changed, 159 insertions, 43 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 84a488538427..cf27f106d4d5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -15,6 +15,7 @@
 #include "iwl-io.h"
 #include "debugfs.h"
 #include "iwl-modparams.h"
+#include "iwl-drv.h"
 #include "fw/error-dump.h"
 #include "fw/api/phy-ctxt.h"
 
@@ -391,13 +392,14 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
-static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
+static ssize_t iwl_dbgfs_rs_data_read(struct ieee80211_link_sta *link_sta,
+				      struct iwl_mvm_sta *mvmsta,
+				      struct iwl_mvm *mvm,
+				      struct iwl_mvm_link_sta *mvm_link_sta,
+				      char __user *user_buf,
 				      size_t count, loff_t *ppos)
 {
-	struct ieee80211_sta *sta = file->private_data;
-	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
-	struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
-	struct iwl_mvm *mvm = lq_sta->pers.drv;
+	struct iwl_lq_sta_rs_fw *lq_sta = &mvm_link_sta->lq_sta.rs_fw;
 	static const size_t bufsz = 2048;
 	char *buff;
 	int desc = 0;
@@ -407,8 +409,6 @@ static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
 	if (!buff)
 		return -ENOMEM;
 
-	mutex_lock(&mvm->mutex);
-
 	desc += scnprintf(buff + desc, bufsz - desc, "sta_id %d\n",
 			  lq_sta->pers.sta_id);
 	desc += scnprintf(buff + desc, bufsz - desc,
@@ -429,18 +429,19 @@ static ssize_t iwl_dbgfs_rs_data_read(struct file *file, char __user *user_buf,
 				     lq_sta->last_rate_n_flags);
 	if (desc < bufsz - 1)
 		buff[desc++] = '\n';
-	mutex_unlock(&mvm->mutex);
 
 	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
 	kfree(buff);
 	return ret;
 }
 
-static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
+static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_link_sta *link_sta,
+					 struct iwl_mvm_sta *mvmsta,
+					 struct iwl_mvm *mvm,
+					 struct iwl_mvm_link_sta *mvm_link_sta,
 					 char *buf, size_t count,
 					 loff_t *ppos)
 {
-	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	int i;
 	u16 amsdu_len;
 
@@ -448,36 +449,39 @@ static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
 		return -EINVAL;
 
 	/* only change from debug set <-> debug unset */
-	if (amsdu_len && mvmsta->orig_amsdu_len)
+	if (amsdu_len && mvm_link_sta->orig_amsdu_len)
 		return -EBUSY;
 
 	if (amsdu_len) {
-		mvmsta->orig_amsdu_len = sta->cur->max_amsdu_len;
-		sta->deflink.agg.max_amsdu_len = amsdu_len;
-		sta->deflink.agg.max_amsdu_len = amsdu_len;
-		for (i = 0; i < ARRAY_SIZE(sta->deflink.agg.max_tid_amsdu_len); i++)
-			sta->deflink.agg.max_tid_amsdu_len[i] = amsdu_len;
+		mvm_link_sta->orig_amsdu_len = link_sta->agg.max_amsdu_len;
+		link_sta->agg.max_amsdu_len = amsdu_len;
+		link_sta->agg.max_amsdu_len = amsdu_len;
+		for (i = 0; i < ARRAY_SIZE(link_sta->agg.max_tid_amsdu_len); i++)
+			link_sta->agg.max_tid_amsdu_len[i] = amsdu_len;
 	} else {
-		sta->deflink.agg.max_amsdu_len = mvmsta->orig_amsdu_len;
-		mvmsta->orig_amsdu_len = 0;
+		link_sta->agg.max_amsdu_len = mvm_link_sta->orig_amsdu_len;
+		mvm_link_sta->orig_amsdu_len = 0;
 	}
 
+	ieee80211_sta_recalc_aggregates(link_sta->sta);
+
 	return count;
 }
 
-static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file,
+static ssize_t iwl_dbgfs_amsdu_len_read(struct ieee80211_link_sta *link_sta,
+					struct iwl_mvm_sta *mvmsta,
+					struct iwl_mvm *mvm,
+					struct iwl_mvm_link_sta *mvm_link_sta,
 					char __user *user_buf,
 					size_t count, loff_t *ppos)
 {
-	struct ieee80211_sta *sta = file->private_data;
-	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
-
 	char buf[32];
 	int pos;
 
-	pos = scnprintf(buf, sizeof(buf), "current %d ", sta->cur->max_amsdu_len);
+	pos = scnprintf(buf, sizeof(buf), "current %d ",
+			link_sta->agg.max_amsdu_len);
 	pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
-			 mvmsta->orig_amsdu_len);
+			 mvm_link_sta->orig_amsdu_len);
 
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
@@ -712,6 +716,7 @@ static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
 	struct iwl_mvm *mvm = file->private_data;
 	char *buff, *pos, *endpos;
 	static const size_t bufsz = 1024;
+	char _fw_name_pre[FW_NAME_PRE_BUFSIZE];
 	int ret;
 
 	buff = kmalloc(bufsz, GFP_KERNEL);
@@ -722,7 +727,7 @@ static ssize_t iwl_dbgfs_fw_ver_read(struct file *file, char __user *user_buf,
 	endpos = pos + bufsz;
 
 	pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",
-			 mvm->trans->cfg->fw_name_pre);
+			 iwl_drv_get_fwname_pre(mvm->trans, _fw_name_pre));
 	pos += scnprintf(pos, endpos - pos, "FW: %s\n",
 			 mvm->fwrt.fw->human_readable);
 	pos += scnprintf(pos, endpos - pos, "Device: %s\n",
@@ -1596,17 +1601,127 @@ static ssize_t iwl_dbgfs_dbg_time_point_write(struct iwl_mvm *mvm,
 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
 	MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
 
-#define MVM_DEBUGFS_WRITE_STA_FILE_OPS(name, bufsz) \
-	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
-#define MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(name, bufsz) \
-	_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_sta)
+static ssize_t
+_iwl_dbgfs_link_sta_wrap_write(ssize_t (*real)(struct ieee80211_link_sta *,
+					       struct iwl_mvm_sta *,
+					       struct iwl_mvm *,
+					       struct iwl_mvm_link_sta *,
+					       char *,
+					       size_t, loff_t *),
+			   struct file *file,
+			   char *buf, size_t buf_size, loff_t *ppos)
+{
+	struct ieee80211_link_sta *link_sta = file->private_data;
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
+	struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
+	struct iwl_mvm_link_sta *mvm_link_sta;
+	ssize_t ret;
 
-#define MVM_DEBUGFS_ADD_STA_FILE_ALIAS(alias, name, parent, mode) do {	\
-		debugfs_create_file(alias, mode, parent, sta,		\
-				    &iwl_dbgfs_##name##_ops);		\
-	} while (0)
-#define MVM_DEBUGFS_ADD_STA_FILE(name, parent, mode) \
-	MVM_DEBUGFS_ADD_STA_FILE_ALIAS(#name, name, parent, mode)
+	mutex_lock(&mvm->mutex);
+
+	mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
+						 lockdep_is_held(&mvm->mutex));
+	if (WARN_ON(!mvm_link_sta)) {
+		mutex_unlock(&mvm->mutex);
+		return -ENODEV;
+	}
+
+	ret = real(link_sta, mvmsta, mvm, mvm_link_sta, buf, buf_size, ppos);
+
+	mutex_unlock(&mvm->mutex);
+
+	return ret;
+}
+
+static ssize_t
+_iwl_dbgfs_link_sta_wrap_read(ssize_t (*real)(struct ieee80211_link_sta *,
+					      struct iwl_mvm_sta *,
+					      struct iwl_mvm *,
+					      struct iwl_mvm_link_sta *,
+					      char __user *,
+					      size_t, loff_t *),
+			   struct file *file,
+			   char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct ieee80211_link_sta *link_sta = file->private_data;
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(link_sta->sta);
+	struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(mvmsta->vif)->mvm;
+	struct iwl_mvm_link_sta *mvm_link_sta;
+	ssize_t ret;
+
+	mutex_lock(&mvm->mutex);
+
+	mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_sta->link_id],
+						 lockdep_is_held(&mvm->mutex));
+	if (WARN_ON(!mvm_link_sta)) {
+		mutex_unlock(&mvm->mutex);
+		return -ENODEV;
+	}
+
+	ret = real(link_sta, mvmsta, mvm, mvm_link_sta, user_buf, count, ppos);
+
+	mutex_unlock(&mvm->mutex);
+
+	return ret;
+}
+
+#define MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, buflen)		\
+static ssize_t _iwl_dbgfs_link_sta_##name##_write(struct file *file,	\
+					 const char __user *user_buf,	\
+					 size_t count, loff_t *ppos)	\
+{									\
+	char buf[buflen] = {};						\
+	size_t buf_size = min(count, sizeof(buf) -  1);			\
+									\
+	if (copy_from_user(buf, user_buf, sizeof(buf)))			\
+		return -EFAULT;						\
+									\
+	return _iwl_dbgfs_link_sta_wrap_write(iwl_dbgfs_##name##_write,	\
+					      file,			\
+					      buf, buf_size, ppos);	\
+}									\
+
+#define MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name)		\
+static ssize_t _iwl_dbgfs_link_sta_##name##_read(struct file *file,	\
+					 char __user *user_buf,		\
+					 size_t count, loff_t *ppos)	\
+{									\
+	return _iwl_dbgfs_link_sta_wrap_read(iwl_dbgfs_##name##_read,	\
+					     file,			\
+					     user_buf, count, ppos);	\
+}									\
+
+#define MVM_DEBUGFS_WRITE_LINK_STA_FILE_OPS(name, bufsz)		\
+MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz)				\
+static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = {	\
+	.write = _iwl_dbgfs_link_sta_##name##_write,			\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
+}
+
+#define MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(name)			\
+MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name)					\
+static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = {	\
+	.read = _iwl_dbgfs_link_sta_##name##_read,			\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
+}
+
+#define MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(name, bufsz)		\
+MVM_DEBUGFS_LINK_STA_READ_WRAPPER(name)					\
+MVM_DEBUGFS_LINK_STA_WRITE_WRAPPER(name, bufsz)				\
+static const struct file_operations iwl_dbgfs_link_sta_##name##_ops = {	\
+	.read = _iwl_dbgfs_link_sta_##name##_read,			\
+	.write = _iwl_dbgfs_link_sta_##name##_write,			\
+	.open = simple_open,						\
+	.llseek = generic_file_llseek,					\
+}
+
+#define MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(alias, name, parent, mode)	\
+		debugfs_create_file(alias, mode, parent, link_sta,	\
+				    &iwl_dbgfs_link_sta_##name##_ops)
+#define MVM_DEBUGFS_ADD_LINK_STA_FILE(name, parent, mode) \
+	MVM_DEBUGFS_ADD_LINK_STA_FILE_ALIAS(#name, name, parent, mode)
 
 static ssize_t
 iwl_dbgfs_prph_reg_read(struct file *file,
@@ -1891,7 +2006,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
 MVM_DEBUGFS_READ_FILE_OPS(stations);
-MVM_DEBUGFS_READ_FILE_OPS(rs_data);
+MVM_DEBUGFS_READ_LINK_STA_FILE_OPS(rs_data);
 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
@@ -1921,7 +2036,7 @@ MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
 MVM_DEBUGFS_READ_FILE_OPS(wifi_6e_enable);
 #endif
 
-MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
+MVM_DEBUGFS_READ_WRITE_LINK_STA_FILE_OPS(amsdu_len, 16);
 
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
 
@@ -2068,17 +2183,18 @@ static const struct file_operations iwl_dbgfs_mem_ops = {
 	.llseek = default_llseek,
 };
 
-void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
-			     struct ieee80211_vif *vif,
-			     struct ieee80211_sta *sta,
-			     struct dentry *dir)
+void iwl_mvm_link_sta_add_debugfs(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  struct ieee80211_link_sta *link_sta,
+				  struct dentry *dir)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
 	if (iwl_mvm_has_tlc_offload(mvm)) {
-		MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
+		MVM_DEBUGFS_ADD_LINK_STA_FILE(rs_data, dir, 0400);
 	}
-	MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600);
+
+	MVM_DEBUGFS_ADD_LINK_STA_FILE(amsdu_len, dir, 0600);
 }
 
 void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)