Implement very basic ALQ logging for net80211.

This is destined to be a lightweight and optional set of ALQ
probes for debugging events which are just impossible to debug
with printf/log (eg packet TX/RX handling; AMPDU handling.)

The probes and operations themselves will appear in subsequent
commits.

1 files changed, 51 insertions, 0 deletions

diff --git a/sys/net80211/ieee80211_alq.h b/sys/net80211/ieee80211_alq.h
new file mode 100644
index 0000000..648eba2
--- /dev/null
+++ b/sys/net80211/ieee80211_alq.h
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2011 Adrian Chadd, Xenion Lty Ltd
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef	__IEEE80211_ALQ_H__
+#define	__IEEE80211_ALQ_H__
+
+#define	IEEE80211_ALQ_PAYLOAD_SIZE	24
+
+/*
+ * timestamp
+ * wlan interface
+ * operation
+ * sub-operation
+ * rest of structure - operation specific
+ */
+struct ieee80211_alq_rec {
+	uint32_t	r_timestamp;	/* XXX may wrap! */
+	uint16_t	r_wlan;		/* wlan interface number */
+	uint8_t		r_version;	/* version */
+	uint8_t		r_op;		/* top-level operation id */
+	u_char		r_payload[IEEE80211_ALQ_PAYLOAD_SIZE];
+					/* operation-specific payload */
+};
+
+/* General logging function */
+extern void ieee80211_alq_log(struct ieee80211vap *vap, uint8_t op, u_char *p, int l);
+
+#endif	/* __IEEE80211_ALQ_H__ */