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Migrate the TX path code out of if_ath and into a separate source file.

Browse Source 
There's two reasons for this:

* the raw and non-raw TX path shares a lot of duplicate code which should be
  refactored;
* the 11n-ready chip TX path needs a little reworking.
This commit is contained in:
Adrian Chadd 2011-01-29 11:35:23 +00:00
parent 1fb145a629
commit b8e788a53a
6 changed files with 1137 additions and 953 deletions
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2
sys/conf/files
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@ -568,6 +568,8 @@ dev/ath/if_ath.c optional ath \
compile-with "${NORMAL_C} -I$S/dev/ath"
dev/ath/if_ath_debug.c optional ath \
compile-with "${NORMAL_C} -I$S/dev/ath"
dev/ath/if_ath_tx.c optional ath \
compile-with "${NORMAL_C} -I$S/dev/ath"
dev/ath/if_ath_pci.c optional ath pci \
compile-with "${NORMAL_C} -I$S/dev/ath"
dev/ath/ah_osdep.c optional ath \

957
sys/dev/ath/if_ath.c
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56
sys/dev/ath/if_ath_misc.h Normal file
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@ -0,0 +1,56 @@
/*-
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#ifndef __IF_ATH_MISC_H__
#define __IF_ATH_MISC_H__
/*
* This is where definitions for "public things" in if_ath.c
* will go for the time being.
*
* Anything in here should eventually be moved out of if_ath.c
* and into something else.
*/
/* unaligned little endian access */
#define LE_READ_2(p) \
((u_int16_t) \
((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)))
#define LE_READ_4(p) \
((u_int32_t) \
((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \
(((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
extern struct ath_buf * ath_getbuf(struct ath_softc *sc);
extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc);
#endif

1029
sys/dev/ath/if_ath_tx.c Normal file
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44
sys/dev/ath/if_ath_tx.h Normal file
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@ -0,0 +1,44 @@
/*-
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#ifndef __IF_ATH_TX_H__
#define __IF_ATH_TX_H__
extern void ath_freetx(struct mbuf *m);
extern void ath_txfrag_cleanup(struct ath_softc *sc, ath_bufhead *frags,
struct ieee80211_node *ni);
extern int ath_txfrag_setup(struct ath_softc *sc, ath_bufhead *frags,
struct mbuf *m0, struct ieee80211_node *ni);
extern int ath_tx_start(struct ath_softc *sc, struct ieee80211_node *ni,
struct ath_buf *bf, struct mbuf *m0);
extern int ath_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
const struct ieee80211_bpf_params *params);
#endif

2
sys/modules/ath/Makefile
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@ -35,7 +35,7 @@ ATH_RATE?= sample # tx rate control algorithm
.PATH: ${.CURDIR}/../../dev/ath/ath_hal
KMOD= if_ath
SRCS= if_ath.c if_ath_pci.c if_ath_debug.c
SRCS= if_ath.c if_ath_pci.c if_ath_debug.c if_ath_tx.c
# NB: v3 eeprom support used by both AR5211 and AR5212; just include it
SRCS+= ah_osdep.c ah.c ah_regdomain.c ah_eeprom_v3.c
SRCS+= device_if.h bus_if.h pci_if.h opt_inet.h opt_ath.h opt_ah.h opt_wlan.h