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Commit 34dd5feb authored by Zhu Yi's avatar Zhu Yi Committed by John W. Linville
Browse files

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 Diff line number Diff line
@@ -17,7 +17,7 @@ config IWM 
config IWM_DEBUG

	bool "Enable full debugging output in iwmc3200wifi"

	depends on IWM && DEBUG_FS

	---help---

	help

	  This option will enable debug tracing and setting for iwm



	  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:

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

	  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 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-$(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 Diff line number Diff line
@@ -104,6 +104,7 @@ 
#include "hal.h"

#include "umac.h"

#include "debug.h"

#include "trace.h"



static int iwm_nonwifi_cmd_init(struct iwm_priv *iwm,

				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->op1_sz, udma_cmd->op2);



	trace_iwm_tx_nonwifi_cmd(iwm, udma_hdr);

	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;

	}



	trace_iwm_tx_wifi_cmd(iwm, umac_hdr);

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

}

drivers/net/wireless/iwmc3200wifi/hal.h

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




/* 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_READ_RESP		0x1

drivers/net/wireless/iwmc3200wifi/iwm.h

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

#include "lmac.h"

#include "eeprom.h"

#include "trace.h"



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

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