mwifiex: device dump support via devcoredump framework

Currently device dump generated in the driver is retrieved
using ethtool set/get dump commands. We will get rid of
ethtool approach and use devcoredump framework.

Device dump can be trigger by
cat /debugfs/mwifiex/mlanX/device_dump
and when the dump operation is completed, data can be read by
cat /sys/class/devcoredump/devcdX/data

We have prepared following script to split device dump data
into multiple files.

 [root]# cat mwifiex_split_dump_data.sh
 #!/bin/bash
 # usage: ./mwifiex_split_dump_data.sh dump_data

 fw_dump_data=$1

 mem_type="driverinfo ITCM DTCM SQRAM APU CIU ICU MAC"

 for name in ${mem_type[@]}
 do
     sed -n "/Start dump $name/,/End dump/p" $fw_dump_data  > tmp.$name.log
     if [ ! -s tmp.$name.log ]
     then
         rm -rf tmp.$name.log
     else
         #Remove the describle info "Start dump" and "End dump"
         sed '1d' tmp.$name.log | sed '$d' > /data/$name.log
         if [ -s /data/$name.log ]
         then
             echo "generate /data/$name.log"
         else
             sed '1d' tmp.$name.log | sed '$d' > /var/$name.log
             echo "generate /var/$name.log"
         fi
         rm -rf tmp.$name.log
     fi
 done

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 01111fe72a43..5a6c1c76b33b 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -36,6 +36,7 @@
 #include <linux/of.h>
 #include <linux/idr.h>
 #include <linux/inetdevice.h>
+#include <linux/devcoredump.h>
 
 #include "decl.h"
 #include "ioctl.h"
@@ -950,7 +951,6 @@ struct mwifiex_adapter {
 	u8 key_api_major_ver, key_api_minor_ver;
 	struct memory_type_mapping *mem_type_mapping_tbl;
 	u8 num_mem_types;
-	u8 curr_mem_idx;
 	void *drv_info_dump;
 	u32 drv_info_size;
 	bool scan_chan_gap_enabled;
@@ -1485,6 +1485,7 @@ u8 mwifiex_adjust_data_rate(struct mwifiex_private *priv,
 			    u8 rx_rate, u8 ht_info);
 
 void mwifiex_drv_info_dump(struct mwifiex_adapter *adapter);
+void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter);
 void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags);
 void mwifiex_queue_main_work(struct mwifiex_adapter *adapter);