iwlwifi: move firmware restart debugfs hook to op_mode
This allows to test fw restart flow. The hook in transport
layer doesn't really make the fw assert. Moving this hook
to the op_mode allows to use the fw API to actually send a
host command that will make the fw assert.
Change the restart_fw module parameter to be a boolean on
the way.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 56bf601..b080b4b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -398,6 +398,28 @@
}
#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, \
@@ -440,6 +462,7 @@
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);
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
{
@@ -454,6 +477,7 @@
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