7a79cebfba
connectivity interact with the net80211 stack. Historical background: originally wireless devices created an interface, just like Ethernet devices do. Name of an interface matched the name of the driver that created. Later, wlan(4) layer was introduced, and the wlanX interfaces become the actual interface, leaving original ones as "a parent interface" of wlanX. Kernelwise, the KPI between net80211 layer and a driver became a mix of methods that pass a pointer to struct ifnet as identifier and methods that pass pointer to struct ieee80211com. From user point of view, the parent interface just hangs on in the ifconfig list, and user can't do anything useful with it. Now, the struct ifnet goes away. The struct ieee80211com is the only KPI between a device driver and net80211. Details: - The struct ieee80211com is embedded into drivers softc. - Packets are sent via new ic_transmit method, which is very much like the previous if_transmit. - Bringing parent up/down is done via new ic_parent method, which notifies driver about any changes: number of wlan(4) interfaces, number of them in promisc or allmulti state. - Device specific ioctls (if any) are received on new ic_ioctl method. - Packets/errors accounting are done by the stack. In certain cases, when driver experiences errors and can not attribute them to any specific interface, driver updates ic_oerrors or ic_ierrors counters. Details on interface configuration with new world order: - A sequence of commands needed to bring up wireless DOESN"T change. - /etc/rc.conf parameters DON'T change. - List of devices that can be used to create wlan(4) interfaces is now provided by net.wlan.devices sysctl. Most drivers in this change were converted by me, except of wpi(4), that was done by Andriy Voskoboinyk. Big thanks to Kevin Lo for testing changes to at least 8 drivers. Thanks to pluknet@, Oliver Hartmann, Olivier Cochard, gjb@, mmoll@, op@ and lev@, who also participated in testing. Reviewed by: adrian Sponsored by: Netflix Sponsored by: Nginx, Inc.
164 lines
6.1 KiB
C
164 lines
6.1 KiB
C
/*-
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* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef __IF_ATH_MISC_H__
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#define __IF_ATH_MISC_H__
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/*
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* This is where definitions for "public things" in if_ath.c
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* will go for the time being.
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*
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* Anything in here should eventually be moved out of if_ath.c
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* and into something else.
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*/
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/* unaligned little endian access */
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#define LE_READ_2(p) \
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((u_int16_t) \
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((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)))
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#define LE_READ_4(p) \
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((u_int32_t) \
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((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \
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(((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
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extern int ath_rxbuf;
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extern int ath_txbuf;
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extern int ath_txbuf_mgmt;
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extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
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extern struct ath_buf * ath_getbuf(struct ath_softc *sc,
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ath_buf_type_t btype);
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extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc,
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ath_buf_type_t btype);
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extern struct ath_buf * ath_buf_clone(struct ath_softc *sc,
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struct ath_buf *bf);
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/* XXX change this to NULL the buffer pointer? */
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extern void ath_freebuf(struct ath_softc *sc, struct ath_buf *bf);
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extern void ath_returnbuf_head(struct ath_softc *sc, struct ath_buf *bf);
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extern void ath_returnbuf_tail(struct ath_softc *sc, struct ath_buf *bf);
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extern int ath_reset(struct ath_softc *, ATH_RESET_TYPE);
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extern void ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf,
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int fail);
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extern void ath_tx_update_ratectrl(struct ath_softc *sc,
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struct ieee80211_node *ni, struct ath_rc_series *rc,
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struct ath_tx_status *ts, int frmlen, int nframes, int nbad);
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extern int ath_hal_gethangstate(struct ath_hal *ah, uint32_t mask,
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uint32_t *hangs);
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extern void ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf,
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int status);
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extern void ath_txq_freeholdingbuf(struct ath_softc *sc,
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struct ath_txq *txq);
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extern void ath_txqmove(struct ath_txq *dst, struct ath_txq *src);
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extern void ath_mode_init(struct ath_softc *sc);
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extern void ath_setdefantenna(struct ath_softc *sc, u_int antenna);
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extern void ath_setslottime(struct ath_softc *sc);
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extern int ath_descdma_alloc_desc(struct ath_softc *sc,
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struct ath_descdma *dd, ath_bufhead *head, const char *name,
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int ds_size, int ndesc);
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extern int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
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ath_bufhead *head, const char *name, int ds_size, int nbuf,
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int ndesc);
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extern int ath_descdma_setup_rx_edma(struct ath_softc *sc,
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struct ath_descdma *dd, ath_bufhead *head, const char *name,
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int nbuf, int desclen);
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extern void ath_descdma_cleanup(struct ath_softc *sc,
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struct ath_descdma *dd, ath_bufhead *head);
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extern void ath_legacy_attach_comp_func(struct ath_softc *sc);
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extern void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq);
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extern void ath_legacy_tx_drain(struct ath_softc *sc,
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ATH_RESET_TYPE reset_type);
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extern void ath_tx_process_buf_completion(struct ath_softc *sc,
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struct ath_txq *txq, struct ath_tx_status *ts, struct ath_buf *bf);
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extern int ath_stoptxdma(struct ath_softc *sc);
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extern void ath_tx_update_tim(struct ath_softc *sc,
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struct ieee80211_node *ni, int enable);
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/*
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* This is only here so that the RX proc function can call it.
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* It's very likely that the "start TX after RX" call should be
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* done via something in if_ath.c, moving "rx tasklet" into
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* if_ath.c and do the ath_start() call there. Once that's done,
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* we can kill this.
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*/
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extern void ath_start(struct ifnet *ifp);
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extern void ath_start_task(void *arg, int npending);
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extern void ath_tx_dump(struct ath_softc *sc, struct ath_txq *txq);
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/*
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* Power state tracking.
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*/
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extern void _ath_power_setpower(struct ath_softc *sc, int power_state, const char *file, int line);
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extern void _ath_power_set_selfgen(struct ath_softc *sc, int power_state, const char *file, int line);
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extern void _ath_power_set_power_state(struct ath_softc *sc, int power_state, const char *file, int line);
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extern void _ath_power_restore_power_state(struct ath_softc *sc, const char *file, int line);
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#define ath_power_setpower(sc, ps) _ath_power_setpower(sc, ps, __FILE__, __LINE__)
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#define ath_power_setselfgen(sc, ps) _ath_power_set_selfgen(sc, ps, __FILE__, __LINE__)
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#define ath_power_set_power_state(sc, ps) _ath_power_set_power_state(sc, ps, __FILE__, __LINE__)
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#define ath_power_restore_power_state(sc) _ath_power_restore_power_state(sc, __FILE__, __LINE__)
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/*
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* Kick the frame TX task.
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*/
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static inline void
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ath_tx_kick(struct ath_softc *sc)
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{
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/* XXX NULL for now */
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}
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/*
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* Kick the software TX queue task.
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*/
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static inline void
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ath_tx_swq_kick(struct ath_softc *sc)
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{
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taskqueue_enqueue(sc->sc_tq, &sc->sc_txqtask);
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}
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#endif
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