drivers/net/wireless/iwlwifi/iwl-devtrace.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  *  Intel Linux Wireless <ilw@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26
  27 #ifndef __IWLWIFI_DEVICE_TRACE
  28 #include <linux/skbuff.h>
  29 #include <linux/ieee80211.h>
  30 #include <net/cfg80211.h>
  31 #include "iwl-trans.h"
  32 #if !defined(__IWLWIFI_DEVICE_TRACE)
  33 static inline bool iwl_trace_data(struct sk_buff *skb)
  34 {
  35         struct ieee80211_hdr *hdr = (void *)skb->data;
  36         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
  37
  38         if (!ieee80211_is_data(hdr->frame_control))
  39                 return false;
  40         return !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO);
  41 }
  42
  43 static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
  44                                       void *rxbuf, size_t len)
  45 {
  46         struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
  47         struct ieee80211_hdr *hdr;
  48
  49         if (cmd->cmd != trans->rx_mpdu_cmd)
  50                 return len;
  51
  52         hdr = (void *)((u8 *)cmd + sizeof(struct iwl_cmd_header) +
  53                         trans->rx_mpdu_cmd_hdr_size);
  54         if (!ieee80211_is_data(hdr->frame_control))
  55                 return len;
  56         /* maybe try to identify EAPOL frames? */
  57         return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
  58                 ieee80211_hdrlen(hdr->frame_control);
  59 }
  60 #endif
  61
  62 #define __IWLWIFI_DEVICE_TRACE
  63
  64 #include <linux/tracepoint.h>
  65 #include <linux/device.h>
  66 #include "iwl-trans.h"
  67
  68
  69 #if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
  70 #undef TRACE_EVENT
  71 #define TRACE_EVENT(name, proto, ...) \
  72 static inline void trace_ ## name(proto) {}
  73 #undef DECLARE_EVENT_CLASS
  74 #define DECLARE_EVENT_CLASS(...)
  75 #undef DEFINE_EVENT
  76 #define DEFINE_EVENT(evt_class, name, proto, ...) \
  77 static inline void trace_ ## name(proto) {}
  78 #endif
  79
  80 #define DEV_ENTRY       __string(dev, dev_name(dev))
  81 #define DEV_ASSIGN      __assign_str(dev, dev_name(dev))
  82
  83 #include "iwl-devtrace-io.h"
  84 #include "iwl-devtrace-ucode.h"
  85 #include "iwl-devtrace-msg.h"
  86 #include "iwl-devtrace-data.h"
  87 #include "iwl-devtrace-iwlwifi.h"
  88
  89 #endif /* __IWLWIFI_DEVICE_TRACE */