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Commit 34dd5feb authored by Zhu Yi's avatar Zhu Yi Committed by John W. Linville
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iwmc3200wifi: add ftrace event tracing support 



Add event tracer for iwmc3200wifi driver. When enabled, all the
commands and responses between the driver and firmware (also
including Tx/Rx frames) will be recorded in the ftrace ring buffer.

Signed-off-by: default avatarZhu Yi <yi.zhu@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 04d1c227

drivers/net/wireless/iwmc3200wifi/Kconfig

+8 −1
Original line number Original line Diff line number Diff line
@@ -17,7 +17,7 @@ config IWM 
config IWM_DEBUG

config IWM_DEBUG

	bool "Enable full debugging output in iwmc3200wifi"

	bool "Enable full debugging output in iwmc3200wifi"

	depends on IWM && DEBUG_FS

	depends on IWM && DEBUG_FS

	---help---

	help

	  This option will enable debug tracing and setting for iwm

	  This option will enable debug tracing and setting for iwm





	  You can set the debug level and module through debugfs. By

	  You can set the debug level and module through debugfs. By
@@ -30,3 +30,10 @@ config IWM_DEBUG 
	  Or, if you want the full debug, for all modules:

	  Or, if you want the full debug, for all modules:

	  echo 0xff > /sys/kernel/debug/iwm/phyN/debug/level

	  echo 0xff > /sys/kernel/debug/iwm/phyN/debug/level

	  echo 0xff > /sys/kernel/debug/iwm/phyN/debug/modules

	  echo 0xff > /sys/kernel/debug/iwm/phyN/debug/modules



config IWM_TRACING

	bool "Enable event tracing for iwmc3200wifi"

	depends on IWM && EVENT_TRACING

	help

	  Say Y here to trace all the commands and responses between

	  the driver and firmware (including TX/RX frames) with ftrace.

drivers/net/wireless/iwmc3200wifi/Makefile

+3 −0
Original line number Original line Diff line number Diff line
@@ -3,3 +3,6 @@ iwmc3200wifi-objs += main.o netdev.o rx.o tx.o sdio.o hal.o fw.o 
iwmc3200wifi-objs += commands.o cfg80211.o eeprom.o

iwmc3200wifi-objs += commands.o cfg80211.o eeprom.o





iwmc3200wifi-$(CONFIG_IWM_DEBUG) += debugfs.o

iwmc3200wifi-$(CONFIG_IWM_DEBUG) += debugfs.o

iwmc3200wifi-$(CONFIG_IWM_TRACING) += trace.o



CFLAGS_trace.o := -I$(src)

drivers/net/wireless/iwmc3200wifi/hal.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -104,6 +104,7 @@ 
#include "hal.h"

#include "hal.h"

#include "umac.h"

#include "umac.h"

#include "debug.h"

#include "debug.h"

#include "trace.h"





static int iwm_nonwifi_cmd_init(struct iwm_priv *iwm,

static int iwm_nonwifi_cmd_init(struct iwm_priv *iwm,

				struct iwm_nonwifi_cmd *cmd,

				struct iwm_nonwifi_cmd *cmd,
@@ -276,6 +277,7 @@ static int iwm_send_udma_nonwifi_cmd(struct iwm_priv *iwm, 
		    udma_cmd->handle_by_hw, cmd->seq_num, udma_cmd->addr,

		    udma_cmd->handle_by_hw, cmd->seq_num, udma_cmd->addr,

		    udma_cmd->op1_sz, udma_cmd->op2);

		    udma_cmd->op1_sz, udma_cmd->op2);





	trace_iwm_tx_nonwifi_cmd(iwm, udma_hdr);

	return iwm_bus_send_chunk(iwm, buf->start, buf->len);

	return iwm_bus_send_chunk(iwm, buf->start, buf->len);

}

}
@@ -362,6 +364,7 @@ static int iwm_send_udma_wifi_cmd(struct iwm_priv *iwm, 
		return ret;

		return ret;

	}

	}





	trace_iwm_tx_wifi_cmd(iwm, umac_hdr);

	return iwm_bus_send_chunk(iwm, buf->start, buf->len);

	return iwm_bus_send_chunk(iwm, buf->start, buf->len);

}

}

drivers/net/wireless/iwmc3200wifi/hal.h

+2 −1
Original line number Original line Diff line number Diff line
@@ -75,7 +75,8 @@ do { \ 








/* UDMA IN OP CODE -- cmd bits [3:0] */

/* UDMA IN OP CODE -- cmd bits [3:0] */

#define UDMA_IN_OPCODE_MASK			0xF

#define UDMA_HDI_IN_NW_CMD_OPCODE_POS		0

#define UDMA_HDI_IN_NW_CMD_OPCODE_SEED		0xF





#define UDMA_IN_OPCODE_GENERAL_RESP		0x0

#define UDMA_IN_OPCODE_GENERAL_RESP		0x0

#define UDMA_IN_OPCODE_READ_RESP		0x1

#define UDMA_IN_OPCODE_READ_RESP		0x1

drivers/net/wireless/iwmc3200wifi/iwm.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -48,6 +48,7 @@ 
#include "umac.h"

#include "umac.h"

#include "lmac.h"

#include "lmac.h"

#include "eeprom.h"

#include "eeprom.h"

#include "trace.h"





#define IWM_COPYRIGHT "Copyright(c) 2009 Intel Corporation"

#define IWM_COPYRIGHT "Copyright(c) 2009 Intel Corporation"

#define IWM_AUTHOR "<ilw@linux.intel.com>"

#define IWM_AUTHOR "<ilw@linux.intel.com>"