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path: root/drivers/net/wireless/iwlwifi/mvm/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/debugfs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/debugfs.c257
1 files changed, 247 insertions, 10 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index c1bdb558212..2053dccefcd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -22,7 +22,7 @@
* USA
*
* The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
+ * in the file called COPYING.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
@@ -69,12 +69,6 @@ struct iwl_dbgfs_mvm_ctx {
struct ieee80211_vif *vif;
};
-static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
static ssize_t iwl_dbgfs_tx_flush_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
@@ -306,10 +300,191 @@ static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
return count;
}
+static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_vif *vif = file->private_data;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mvm *mvm = mvmvif->dbgfs_data;
+ u8 ap_sta_id;
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ char buf[512];
+ int bufsz = sizeof(buf);
+ int pos = 0;
+ int i;
+
+ mutex_lock(&mvm->mutex);
+
+ ap_sta_id = mvmvif->ap_sta_id;
+
+ pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
+ mvmvif->id, mvmvif->color);
+ pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
+ vif->bss_conf.bssid);
+ pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
+ for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) {
+ pos += scnprintf(buf+pos, bufsz-pos,
+ "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
+ i, mvmvif->queue_params[i].txop,
+ mvmvif->queue_params[i].cw_min,
+ mvmvif->queue_params[i].cw_max,
+ mvmvif->queue_params[i].aifs,
+ mvmvif->queue_params[i].uapsd);
+ }
+
+ if (vif->type == NL80211_IFTYPE_STATION &&
+ ap_sta_id != IWL_MVM_STATION_COUNT) {
+ struct ieee80211_sta *sta;
+ struct iwl_mvm_sta *mvm_sta;
+
+ sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
+ lockdep_is_held(&mvm->mutex));
+ mvm_sta = (void *)sta->drv_priv;
+ pos += scnprintf(buf+pos, bufsz-pos,
+ "ap_sta_id %d - reduced Tx power %d\n",
+ ap_sta_id, mvm_sta->bt_reduced_txpower);
+ }
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(vif->chanctx_conf);
+ if (chanctx_conf) {
+ pos += scnprintf(buf+pos, bufsz-pos,
+ "idle rx chains %d, active rx chains: %d\n",
+ chanctx_conf->rx_chains_static,
+ chanctx_conf->rx_chains_dynamic);
+ }
+ rcu_read_unlock();
+
+ mutex_unlock(&mvm->mutex);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+#define BT_MBOX_MSG(_notif, _num, _field) \
+ ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
+ >> BT_MBOX##_num##_##_field##_POS)
+
+
+#define BT_MBOX_PRINT(_num, _field, _end) \
+ pos += scnprintf(buf + pos, bufsz - pos, \
+ "\t%s: %d%s", \
+ #_field, \
+ BT_MBOX_MSG(notif, _num, _field), \
+ true ? "\n" : ", ");
+
+static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_mvm *mvm = file->private_data;
+ struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
+ char *buf;
+ int ret, pos = 0, bufsz = sizeof(char) * 1024;
+
+ buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ mutex_lock(&mvm->mutex);
+
+ pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
+
+ BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
+ BT_MBOX_PRINT(0, LE_PROF1, false);
+ BT_MBOX_PRINT(0, LE_PROF2, false);
+ BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
+ BT_MBOX_PRINT(0, CHL_SEQ_N, false);
+ BT_MBOX_PRINT(0, INBAND_S, false);
+ BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
+ BT_MBOX_PRINT(0, LE_SCAN, false);
+ BT_MBOX_PRINT(0, LE_ADV, false);
+ BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
+ BT_MBOX_PRINT(0, OPEN_CON_1, true);
+
+ pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
+
+ BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
+ BT_MBOX_PRINT(1, IP_SR, false);
+ BT_MBOX_PRINT(1, LE_MSTR, false);
+ BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
+ BT_MBOX_PRINT(1, MSG_TYPE, false);
+ BT_MBOX_PRINT(1, SSN, true);
+
+ pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
+
+ BT_MBOX_PRINT(2, SNIFF_ACT, false);
+ BT_MBOX_PRINT(2, PAG, false);
+ BT_MBOX_PRINT(2, INQUIRY, false);
+ BT_MBOX_PRINT(2, CONN, false);
+ BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
+ BT_MBOX_PRINT(2, DISC, false);
+ BT_MBOX_PRINT(2, SCO_TX_ACT, false);
+ BT_MBOX_PRINT(2, SCO_RX_ACT, false);
+ BT_MBOX_PRINT(2, ESCO_RE_TX, false);
+ BT_MBOX_PRINT(2, SCO_DURATION, true);
+
+ pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
+
+ BT_MBOX_PRINT(3, SCO_STATE, false);
+ BT_MBOX_PRINT(3, SNIFF_STATE, false);
+ BT_MBOX_PRINT(3, A2DP_STATE, false);
+ BT_MBOX_PRINT(3, ACL_STATE, false);
+ BT_MBOX_PRINT(3, MSTR_STATE, false);
+ BT_MBOX_PRINT(3, OBX_STATE, false);
+ BT_MBOX_PRINT(3, OPEN_CON_2, false);
+ BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
+ BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
+ BT_MBOX_PRINT(3, INBAND_P, false);
+ BT_MBOX_PRINT(3, MSG_TYPE_2, false);
+ BT_MBOX_PRINT(3, SSN_2, false);
+ BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
+
+ pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
+ notif->bt_status);
+ pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
+ notif->bt_open_conn);
+ pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
+ notif->bt_traffic_load);
+ pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
+ notif->bt_agg_traffic_load);
+ pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
+ notif->bt_ci_compliance);
+
+ mutex_unlock(&mvm->mutex);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+
+ return ret;
+}
+#undef BT_MBOX_PRINT
+
+static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_mvm *mvm = file->private_data;
+ bool restart_fw = iwlwifi_mod_params.restart_fw;
+ int ret;
+
+ iwlwifi_mod_params.restart_fw = true;
+
+ mutex_lock(&mvm->mutex);
+
+ /* take the return value to make compiler happy - it will fail anyway */
+ ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
+
+ mutex_unlock(&mvm->mutex);
+
+ iwlwifi_mod_params.restart_fw = restart_fw;
+
+ return count;
+}
+
#define MVM_DEBUGFS_READ_FILE_OPS(name) \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.read = iwl_dbgfs_##name##_read, \
- .open = iwl_dbgfs_open_file_generic, \
+ .open = simple_open, \
.llseek = generic_file_llseek, \
}
@@ -317,14 +492,14 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.write = iwl_dbgfs_##name##_write, \
.read = iwl_dbgfs_##name##_read, \
- .open = iwl_dbgfs_open_file_generic, \
+ .open = simple_open, \
.llseek = generic_file_llseek, \
};
#define MVM_DEBUGFS_WRITE_FILE_OPS(name) \
static const struct file_operations iwl_dbgfs_##name##_ops = { \
.write = iwl_dbgfs_##name##_write, \
- .open = iwl_dbgfs_open_file_generic, \
+ .open = simple_open, \
.llseek = generic_file_llseek, \
};
@@ -345,8 +520,13 @@ MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
MVM_DEBUGFS_READ_FILE_OPS(stations);
+MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
+MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
+
+/* Interface specific debugfs entries */
+MVM_DEBUGFS_READ_FILE_OPS(mac_params);
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
{
@@ -358,8 +538,10 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
+ MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
+ MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
/*
* Create a symlink with mac80211. It will be removed when mac80211
@@ -376,3 +558,58 @@ err:
IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
return -ENOMEM;
}
+
+void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+ struct dentry *dbgfs_dir = vif->debugfs_dir;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ char buf[100];
+
+ if (!dbgfs_dir)
+ return;
+
+ mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
+ mvmvif->dbgfs_data = mvm;
+
+ if (!mvmvif->dbgfs_dir) {
+ IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
+ dbgfs_dir->d_name.name);
+ return;
+ }
+
+ MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
+ S_IRUSR);
+
+ /*
+ * Create symlink for convenience pointing to interface specific
+ * debugfs entries for the driver. For example, under
+ * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
+ * find
+ * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
+ */
+ snprintf(buf, 100, "../../../%s/%s/%s/%s",
+ dbgfs_dir->d_parent->d_parent->d_name.name,
+ dbgfs_dir->d_parent->d_name.name,
+ dbgfs_dir->d_name.name,
+ mvmvif->dbgfs_dir->d_name.name);
+
+ mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
+ mvm->debugfs_dir, buf);
+ if (!mvmvif->dbgfs_slink)
+ IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
+ dbgfs_dir->d_name.name);
+ return;
+err:
+ IWL_ERR(mvm, "Can't create debugfs entity\n");
+}
+
+void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+ debugfs_remove(mvmvif->dbgfs_slink);
+ mvmvif->dbgfs_slink = NULL;
+
+ debugfs_remove_recursive(mvmvif->dbgfs_dir);
+ mvmvif->dbgfs_dir = NULL;
+}