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athrate-amrr.h revision 1.1 
      1 /*-
      2  * Copyright (c) 2004 INRIA
      3  * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer,
     11     without modification.
     12  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
     13  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
     14  *    redistribution must be conditioned upon including a substantially
     15  *    similar Disclaimer requirement for further binary redistribution.
     16  * 3. Neither the names of the above-listed copyright holders nor the names
     17  *    of any contributors may be used to endorse or promote products derived
     18  *    from this software without specific prior written permission.
     19  *
     20  * Alternatively, this software may be distributed under the terms of the
     21  * GNU General Public License ("GPL") version 2 as published by the Free
     22  * Software Foundation.
     23  *
     24  * NO WARRANTY
     25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     27  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
     28  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
     29  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
     30  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
     33  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     35  * THE POSSIBILITY OF SUCH DAMAGES.
     36  *
     37  * $FreeBSD: src/sys/dev/ath/ath_rate/amrr/amrr.h,v 1.2 2004/12/31 22:41:45 sam Exp $
     38  */
     39 
     40 #ifndef _DEV_ATH_RATE_AMRR_H
     41 #define _DEV_ATH_RATE_AMRR_H
     42 
     43 /* per-device state */
     44 struct amrr_softc {
     45 	struct ath_ratectrl arc;	/* base state */
     46 	struct callout timer;		/* periodic timer */
     47 };
     48 
     49 /* per-node state */
     50 struct amrr_node {
     51   	/* AMRR statistics for this node */
     52   	u_int           amn_tx_try0_cnt;
     53   	u_int           amn_tx_try1_cnt;
     54   	u_int           amn_tx_try2_cnt;
     55   	u_int           amn_tx_try3_cnt;
     56   	u_int           amn_tx_failure_cnt;
     57         /* AMRR algorithm state for this node */
     58   	u_int           amn_success_threshold;
     59   	u_int           amn_success;
     60   	u_int           amn_recovery;
     61 	/* rate index et al. */
     62 	u_int8_t	amn_tx_rix0;	/* series 0 rate index */
     63 	u_int8_t	amn_tx_rate0;	/* series 0 h/w rate */
     64 	u_int8_t	amn_tx_rate1;	/* series 1 h/w rate */
     65 	u_int8_t	amn_tx_rate2;	/* series 2 h/w rate */
     66 	u_int8_t	amn_tx_rate3;	/* series 3 h/w rate */
     67 	u_int8_t	amn_tx_rate0sp;	/* series 0 short preamble h/w rate */
     68 	u_int8_t	amn_tx_rate1sp;	/* series 1 short preamble h/w rate */
     69 	u_int8_t	amn_tx_rate2sp;	/* series 2 short preamble h/w rate */
     70 	u_int8_t	amn_tx_rate3sp;	/* series 3 short preamble h/w rate */
     71 	u_int8_t	amn_tx_try0;	/* series 0 try count */
     72   	u_int           amn_tx_try1;    /* series 1 try count */
     73   	u_int           amn_tx_try2;    /* series 2 try count */
     74   	u_int           amn_tx_try3;    /* series 3 try count */
     75 };
     76 #define	ATH_NODE_AMRR(an)	((struct amrr_node *)&an[1])
     77 #endif /* _DEV_ATH_RATE_AMRR_H */
     78