[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / intel / iwlwifi / iwl-devtrace.h

/******************************************************************************
 *
 * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
 * Copyright(C) 2016 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
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/

#ifndef __IWLWIFI_DEVICE_TRACE
#include <linux/skbuff.h>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include "iwl-trans.h"
#if !defined(__IWLWIFI_DEVICE_TRACE)
static inline bool iwl_trace_data(struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr = (void *)skb->data;
	__le16 fc = hdr->frame_control;
	int offs = 24; /* start with normal header length */

	if (!ieee80211_is_data(fc))
		return false;

	/* Try to determine if the frame is EAPOL. This might have false
	 * positives (if there's no RFC 1042 header and we compare to some
	 * payload instead) but since we're only doing tracing that's not
	 * a problem.
	 */

	if (ieee80211_has_a4(fc))
		offs += 6;
	if (ieee80211_is_data_qos(fc))
		offs += 2;
	/* don't account for crypto - these are unencrypted */

	/* also account for the RFC 1042 header, of course */
	offs += 6;

	return skb->len <= offs + 2 ||
		*(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
}

static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
				      void *rxbuf, size_t len)
{
	struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
	struct ieee80211_hdr *hdr;

	if (cmd->cmd != trans->rx_mpdu_cmd)
		return len;

	hdr = (void *)((u8 *)cmd + sizeof(struct iwl_cmd_header) +
			trans->rx_mpdu_cmd_hdr_size);
	if (!ieee80211_is_data(hdr->frame_control))
		return len;
	/* maybe try to identify EAPOL frames? */
	return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
		ieee80211_hdrlen(hdr->frame_control);
}
#endif

#define __IWLWIFI_DEVICE_TRACE

#include <linux/tracepoint.h>
#include <linux/device.h>
#include "iwl-trans.h"


#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {}
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(...)
#undef DEFINE_EVENT
#define DEFINE_EVENT(evt_class, name, proto, ...) \
static inline void trace_ ## name(proto) {}
#endif

#define DEV_ENTRY	__string(dev, dev_name(dev))
#define DEV_ASSIGN	__assign_str(dev, dev_name(dev))

#include "iwl-devtrace-io.h"
#include "iwl-devtrace-ucode.h"
#include "iwl-devtrace-msg.h"
#include "iwl-devtrace-data.h"
#include "iwl-devtrace-iwlwifi.h"

#endif /* __IWLWIFI_DEVICE_TRACE */
Commit	Line	Data
bb5d2db5 RC	1	/******************************************************************************
bb5d2db5 RC	2	*
51368bf7	3	* Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
0c4cb731	4	* Copyright(C) 2016 Intel Deutschland GmbH
bb5d2db5 RC	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of version 2 of the GNU General Public License as
	8	* published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along with
	16	* this program; if not, write to the Free Software Foundation, Inc.,
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	18	*
	19	* The full GNU General Public License is included in this distribution in the
	20	* file called LICENSE.
	21	*
	22	* Contact Information:
cb2f8277	23	* Intel Linux Wireless <linuxwifi@intel.com>
bb5d2db5 RC	24	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	25	*
	26	*****************************************************************************/
	27
c5ef935d	28	#ifndef __IWLWIFI_DEVICE_TRACE
f042c2eb JB	29	#include <linux/skbuff.h>
	30	#include <linux/ieee80211.h>
	31	#include <net/cfg80211.h>
	32	#include "iwl-trans.h"
	33	#if !defined(__IWLWIFI_DEVICE_TRACE)
	34	static inline bool iwl_trace_data(struct sk_buff *skb)
	35	{
	36	struct ieee80211_hdr hdr = (void )skb->data;
0c4cb731 JB	37	__le16 fc = hdr->frame_control;
0c4cb731 JB	38	int offs = 24; /* start with normal header length */
f042c2eb	39
0c4cb731	40	if (!ieee80211_is_data(fc))
af61a165	41	return false;
0c4cb731 JB	42
	43	/* Try to determine if the frame is EAPOL. This might have false
	44	* positives (if there's no RFC 1042 header and we compare to some
	45	* payload instead) but since we're only doing tracing that's not
	46	* a problem.
	47	*/
	48
	49	if (ieee80211_has_a4(fc))
	50	offs += 6;
	51	if (ieee80211_is_data_qos(fc))
	52	offs += 2;
	53	/* don't account for crypto - these are unencrypted */
	54
	55	/* also account for the RFC 1042 header, of course */
	56	offs += 6;
	57
5462bcd8 EG	58	return skb->len <= offs + 2 \|\|
5462bcd8 EG	59	(__be16 )(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
f042c2eb JB	60	}
	61
	62	static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
	63	void *rxbuf, size_t len)
	64	{
	65	struct iwl_cmd_header cmd = (void )((u8 *)rxbuf + sizeof(__le32));
	66	struct ieee80211_hdr *hdr;
	67
	68	if (cmd->cmd != trans->rx_mpdu_cmd)
	69	return len;
	70
	71	hdr = (void )((u8 )cmd + sizeof(struct iwl_cmd_header) +
	72	trans->rx_mpdu_cmd_hdr_size);
	73	if (!ieee80211_is_data(hdr->frame_control))
	74	return len;
	75	/* maybe try to identify EAPOL frames? */
	76	return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
	77	ieee80211_hdrlen(hdr->frame_control);
	78	}
	79	#endif
	80
be1a71a1 JB	81	#define __IWLWIFI_DEVICE_TRACE
	82
	83	#include <linux/tracepoint.h>
1023fdc4	84	#include <linux/device.h>
45eab7cc	85	#include "iwl-trans.h"
be1a71a1	86
83ed9015	87
be1a71a1 JB	88	#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) \|\| defined(__CHECKER__)
	89	#undef TRACE_EVENT
	90	#define TRACE_EVENT(name, proto, ...) \
	91	static inline void trace_ ## name(proto) {}
2655e314 JB	92	#undef DECLARE_EVENT_CLASS
	93	#define DECLARE_EVENT_CLASS(...)
	94	#undef DEFINE_EVENT
	95	#define DEFINE_EVENT(evt_class, name, proto, ...) \
	96	static inline void trace_ ## name(proto) {}
be1a71a1 JB	97	#endif
be1a71a1 JB	98
6c1011e1 JB	99	#define DEV_ENTRY __string(dev, dev_name(dev))
6c1011e1 JB	100	#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
be1a71a1	101
c5ef935d SRRH	102	#include "iwl-devtrace-io.h"
	103	#include "iwl-devtrace-ucode.h"
	104	#include "iwl-devtrace-msg.h"
	105	#include "iwl-devtrace-data.h"
	106	#include "iwl-devtrace-iwlwifi.h"
be1a71a1	107
be1a71a1	108	#endif /* __IWLWIFI_DEVICE_TRACE */