iwlwifi: mvm: support MFUART dump in case of MFUART assert
In case of a MFUART assert, get a notification from the fw
that consists of the assert id and debug data.
The notification may be divided to multiple chunks, depending
on the size of the debug data sent to the driver, which would
be up to 1KB.
Get the notification, and if the debug info flag is enabled,
print the debug data to the dmesg.
Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 45cb4f4..286f186 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -7,7 +7,7 @@
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
- * Copyright(c) 2016 Intel Deutschland GmbH
+ * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -34,6 +34,7 @@
*
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -271,6 +272,27 @@ static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
return 0;
}
+void iwl_mvm_mfu_assert_dump_notif(struct iwl_mvm *mvm,
+ struct iwl_rx_cmd_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
+ struct iwl_mfu_assert_dump_notif *mfu_dump_notif = (void *)pkt->data;
+ __le32 *dump_data = mfu_dump_notif->data;
+ int n_words = le32_to_cpu(mfu_dump_notif->data_size) / sizeof(__le32);
+ int i;
+
+ if (mfu_dump_notif->index_num == 0)
+ IWL_INFO(mvm, "MFUART assert id 0x%x occurred\n",
+ le32_to_cpu(mfu_dump_notif->assert_id));
+
+ for (i = 0; i < n_words; i++)
+ IWL_DEBUG_INFO(mvm,
+ "MFUART assert dump, dword %u: 0x%08x\n",
+ le16_to_cpu(mfu_dump_notif->index_num) *
+ n_words + i,
+ le32_to_cpu(dump_data[i]));
+}
+
static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
const struct fw_img *image)
{