wifi: iwlwifi: mvm: add DSM_FUNC_ENABLE_6E value to debugfs

In order to simplify checking that this value was set up
correctly, add it to debugfs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.c9a787710e1e.If509b2e510e22d62f3eefb2c54ff1645e331dc23@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 527daaf46f969e4bcf5b7349d696d2bb817b2e81..affaed4d13fa39cc59ff2f3df8614d51c5b44f78 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -340,6 +340,26 @@ static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
 
        return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
+
+static ssize_t iwl_dbgfs_wifi_6e_enable_read(struct file *file,
+                                            char __user *user_buf,
+                                            size_t count, loff_t *ppos)
+{
+       struct iwl_mvm *mvm = file->private_data;
+       int err, pos;
+       char buf[12];
+       u32 value;
+
+       err = iwl_acpi_get_dsm_u32(mvm->fwrt.dev, 0,
+                                  DSM_FUNC_ENABLE_6E,
+                                  &iwl_guid, &value);
+       if (err)
+               return err;
+
+       pos = sprintf(buf, "0x%08x\n", value);
+
+       return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
 #endif
 
 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
@@ -1898,6 +1918,7 @@ MVM_DEBUGFS_READ_FILE_OPS(uapsd_noagg_bssids);
 
 #ifdef CONFIG_ACPI
 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);
@@ -2092,6 +2113,7 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm)
        MVM_DEBUGFS_ADD_FILE(tas_get_status, mvm->debugfs_dir, 0400);
 #ifdef CONFIG_ACPI
        MVM_DEBUGFS_ADD_FILE(sar_geo_profile, mvm->debugfs_dir, 0400);
+       MVM_DEBUGFS_ADD_FILE(wifi_6e_enable, mvm->debugfs_dir, 0400);
 #endif
        MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);