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1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3 *
4 * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
5 * Copyright(C) 2016 Intel Deutschland GmbH
6 * Copyright(c) 2018, 2023 Intel Corporation
7 *****************************************************************************/
8
9#ifndef __IWLWIFI_DEVICE_TRACE
10#define __IWLWIFI_DEVICE_TRACE
11#include <linux/skbuff.h>
12#include <linux/ieee80211.h>
13#include <net/cfg80211.h>
14#include <net/mac80211.h>
15#include "iwl-trans.h"
16static inline bool iwl_trace_data(struct sk_buff *skb)
17{
18 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
19 struct ieee80211_hdr *hdr = (void *)skb->data;
20 __le16 fc = hdr->frame_control;
21 int offs = 24; /* start with normal header length */
22
23 if (!ieee80211_is_data(fc))
24 return false;
25
26 /* If upper layers wanted TX status it's an important frame */
27 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
28 return false;
29
30 /* Try to determine if the frame is EAPOL. This might have false
31 * positives (if there's no RFC 1042 header and we compare to some
32 * payload instead) but since we're only doing tracing that's not
33 * a problem.
34 */
35
36 if (ieee80211_has_a4(fc))
37 offs += 6;
38 if (ieee80211_is_data_qos(fc))
39 offs += 2;
40 /* don't account for crypto - these are unencrypted */
41
42 /* also account for the RFC 1042 header, of course */
43 offs += 6;
44
45 return skb->len <= offs + 2 ||
46 *(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
47}
48
49static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
50 void *rxbuf, size_t len,
51 size_t *out_hdr_offset)
52{
53 struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
54 struct ieee80211_hdr *hdr = NULL;
55 size_t hdr_offset;
56
57 if (cmd->cmd != trans->rx_mpdu_cmd)
58 return len;
59
60 hdr_offset = sizeof(struct iwl_cmd_header) +
61 trans->rx_mpdu_cmd_hdr_size;
62
63 if (out_hdr_offset)
64 *out_hdr_offset = hdr_offset;
65
66 hdr = (void *)((u8 *)cmd + hdr_offset);
67 if (!ieee80211_is_data(hdr->frame_control))
68 return len;
69 /* maybe try to identify EAPOL frames? */
70 return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
71 ieee80211_hdrlen(hdr->frame_control);
72}
73
74#include <linux/tracepoint.h>
75#include <linux/device.h>
76
77
78#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
79#undef TRACE_EVENT
80#define TRACE_EVENT(name, proto, ...) \
81static inline void trace_ ## name(proto) {}
82#undef DECLARE_EVENT_CLASS
83#define DECLARE_EVENT_CLASS(...)
84#undef DEFINE_EVENT
85#define DEFINE_EVENT(evt_class, name, proto, ...) \
86static inline void trace_ ## name(proto) {}
87#endif
88
89#define DEV_ENTRY __string(dev, dev_name(dev))
90#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
91
92#include "iwl-devtrace-io.h"
93#include "iwl-devtrace-ucode.h"
94#include "iwl-devtrace-msg.h"
95#include "iwl-devtrace-data.h"
96#include "iwl-devtrace-iwlwifi.h"
97
98#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
99DECLARE_TRACEPOINT(iwlwifi_dev_rx);
100DECLARE_TRACEPOINT(iwlwifi_dev_rx_data);
101#endif
102
103void __trace_iwlwifi_dev_rx(struct iwl_trans *trans, void *pkt, size_t len);
104
105static inline void maybe_trace_iwlwifi_dev_rx(struct iwl_trans *trans,
106 void *pkt, size_t len)
107{
108#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
109 if (tracepoint_enabled(iwlwifi_dev_rx) ||
110 tracepoint_enabled(iwlwifi_dev_rx_data))
111 __trace_iwlwifi_dev_rx(trans, pkt, len);
112#endif
113}
114#endif /* __IWLWIFI_DEVICE_TRACE */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3 *
4 * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
5 * Copyright(C) 2016 Intel Deutschland GmbH
6 * Copyright(c) 2018 Intel Corporation
7 *
8 * Contact Information:
9 * Intel Linux Wireless <linuxwifi@intel.com>
10 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
11 *
12 *****************************************************************************/
13
14#ifndef __IWLWIFI_DEVICE_TRACE
15#include <linux/skbuff.h>
16#include <linux/ieee80211.h>
17#include <net/cfg80211.h>
18#include "iwl-trans.h"
19#if !defined(__IWLWIFI_DEVICE_TRACE)
20static inline bool iwl_trace_data(struct sk_buff *skb)
21{
22 struct ieee80211_hdr *hdr = (void *)skb->data;
23 __le16 fc = hdr->frame_control;
24 int offs = 24; /* start with normal header length */
25
26 if (!ieee80211_is_data(fc))
27 return false;
28
29 /* Try to determine if the frame is EAPOL. This might have false
30 * positives (if there's no RFC 1042 header and we compare to some
31 * payload instead) but since we're only doing tracing that's not
32 * a problem.
33 */
34
35 if (ieee80211_has_a4(fc))
36 offs += 6;
37 if (ieee80211_is_data_qos(fc))
38 offs += 2;
39 /* don't account for crypto - these are unencrypted */
40
41 /* also account for the RFC 1042 header, of course */
42 offs += 6;
43
44 return skb->len <= offs + 2 ||
45 *(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
46}
47
48static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
49 void *rxbuf, size_t len,
50 size_t *out_hdr_offset)
51{
52 struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
53 struct ieee80211_hdr *hdr = NULL;
54 size_t hdr_offset;
55
56 if (cmd->cmd != trans->rx_mpdu_cmd)
57 return len;
58
59 hdr_offset = sizeof(struct iwl_cmd_header) +
60 trans->rx_mpdu_cmd_hdr_size;
61
62 if (out_hdr_offset)
63 *out_hdr_offset = hdr_offset;
64
65 hdr = (void *)((u8 *)cmd + hdr_offset);
66 if (!ieee80211_is_data(hdr->frame_control))
67 return len;
68 /* maybe try to identify EAPOL frames? */
69 return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
70 ieee80211_hdrlen(hdr->frame_control);
71}
72#endif
73
74#define __IWLWIFI_DEVICE_TRACE
75
76#include <linux/tracepoint.h>
77#include <linux/device.h>
78
79
80#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
81#undef TRACE_EVENT
82#define TRACE_EVENT(name, proto, ...) \
83static inline void trace_ ## name(proto) {}
84#undef DECLARE_EVENT_CLASS
85#define DECLARE_EVENT_CLASS(...)
86#undef DEFINE_EVENT
87#define DEFINE_EVENT(evt_class, name, proto, ...) \
88static inline void trace_ ## name(proto) {}
89#endif
90
91#define DEV_ENTRY __string(dev, dev_name(dev))
92#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
93
94#include "iwl-devtrace-io.h"
95#include "iwl-devtrace-ucode.h"
96#include "iwl-devtrace-msg.h"
97#include "iwl-devtrace-data.h"
98#include "iwl-devtrace-iwlwifi.h"
99
100#endif /* __IWLWIFI_DEVICE_TRACE */