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Diffstat (limited to 'sys/dev/ath/if_ath_tx.h')
| -rw-r--r-- | sys/dev/ath/if_ath_tx.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/sys/dev/ath/if_ath_tx.h b/sys/dev/ath/if_ath_tx.h new file mode 100644 index 000000000000..4d7ee9039c82 --- /dev/null +++ b/sys/dev/ath/if_ath_tx.h @@ -0,0 +1,167 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * 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. + */ +#ifndef __IF_ATH_TX_H__ +#define __IF_ATH_TX_H__ + +/* + * some general macros + */ +#define INCR(_l, _sz) (_l) ++; (_l) &= ((_sz) - 1) +/* + * return block-ack bitmap index given sequence and starting sequence + */ +#define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_RANGE - 1)) + +#define WME_BA_BMP_SIZE 64 +#define WME_MAX_BA WME_BA_BMP_SIZE + +/* + * How 'busy' to try and keep the hardware txq + */ +#define ATH_AGGR_MIN_QDEPTH 2 +#define ATH_NONAGGR_MIN_QDEPTH 32 + +/* + * Watermark for scheduling TIDs in order to maximise aggregation. + * + * If hwq_depth is greater than this, don't schedule the TID + * for packet scheduling - the hardware is already busy servicing + * this TID. + * + * If hwq_depth is less than this, schedule the TID for packet + * scheduling in the completion handler. + */ +#define ATH_AGGR_SCHED_HIGH 4 +#define ATH_AGGR_SCHED_LOW 2 + +/* + * return whether a bit at index _n in bitmap _bm is set + * _sz is the size of the bitmap + */ +#define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \ + ((_bm)[(_n) >> 5] & (1 << ((_n) & 31)))) + +/* extracting the seqno from buffer seqno */ +#define SEQNO(_a) ((_a) >> IEEE80211_SEQ_SEQ_SHIFT) + +/* + * Whether the current sequence number is within the + * BAW. + */ +#define BAW_WITHIN(_start, _bawsz, _seqno) \ + ((((_seqno) - (_start)) & 4095) < (_bawsz)) + +/* + * Maximum aggregate size + */ +#define ATH_AGGR_MAXSIZE 65530 + +extern void ath_tx_node_flush(struct ath_softc *sc, struct ath_node *an); +extern void ath_tx_txq_drain(struct ath_softc *sc, struct ath_txq *txq); +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); + +/* software queue stuff */ +extern void ath_tx_swq(struct ath_softc *sc, struct ieee80211_node *ni, + struct ath_txq *txq, int queue_to_head, struct ath_buf *bf); +extern void ath_tx_tid_init(struct ath_softc *sc, struct ath_node *an); +extern void ath_tx_tid_hw_queue_aggr(struct ath_softc *sc, struct ath_node *an, + struct ath_tid *tid); +extern void ath_tx_tid_hw_queue_norm(struct ath_softc *sc, struct ath_node *an, + struct ath_tid *tid); +extern void ath_txq_sched(struct ath_softc *sc, struct ath_txq *txq); +extern void ath_tx_normal_comp(struct ath_softc *sc, struct ath_buf *bf, + int fail); +extern void ath_tx_aggr_comp(struct ath_softc *sc, struct ath_buf *bf, + int fail); +extern void ath_tx_addto_baw(struct ath_softc *sc, struct ath_node *an, + struct ath_tid *tid, struct ath_buf *bf); +extern struct ieee80211_tx_ampdu * ath_tx_get_tx_tid(struct ath_node *an, + int tid); +extern void ath_tx_tid_sched(struct ath_softc *sc, struct ath_tid *tid); + +/* TX addba handling */ +extern int ath_addba_request(struct ieee80211_node *ni, + struct ieee80211_tx_ampdu *tap, int dialogtoken, + int baparamset, int batimeout); +extern int ath_addba_response(struct ieee80211_node *ni, + struct ieee80211_tx_ampdu *tap, int dialogtoken, + int code, int batimeout); +extern void ath_addba_stop(struct ieee80211_node *ni, + struct ieee80211_tx_ampdu *tap); +extern void ath_bar_response(struct ieee80211_node *ni, + struct ieee80211_tx_ampdu *tap, int status); +extern void ath_addba_response_timeout(struct ieee80211_node *ni, + struct ieee80211_tx_ampdu *tap); + +/* + * AP mode power save handling (of stations) + */ +extern void ath_tx_node_sleep(struct ath_softc *sc, struct ath_node *an); +extern void ath_tx_node_wakeup(struct ath_softc *sc, struct ath_node *an); +extern int ath_tx_node_is_asleep(struct ath_softc *sc, struct ath_node *an); +extern void ath_tx_node_reassoc(struct ath_softc *sc, struct ath_node *an); + +/* + * Hardware queue stuff + */ +extern void ath_tx_push_pending(struct ath_softc *sc, struct ath_txq *txq); + +/* + * Misc debugging stuff + */ +#ifdef ATH_DEBUG_ALQ +extern void ath_tx_alq_post(struct ath_softc *sc, struct ath_buf *bf_first); +#endif /* ATH_DEBUG_ALQ */ + +/* + * Setup path + */ +#define ath_txdma_setup(_sc) \ + (_sc)->sc_tx.xmit_setup(_sc) +#define ath_txdma_teardown(_sc) \ + (_sc)->sc_tx.xmit_teardown(_sc) +#define ath_txq_restart_dma(_sc, _txq) \ + (_sc)->sc_tx.xmit_dma_restart((_sc), (_txq)) +#define ath_tx_handoff(_sc, _txq, _bf) \ + (_sc)->sc_tx.xmit_handoff((_sc), (_txq), (_bf)) +#define ath_draintxq(_sc, _rtype) \ + (_sc)->sc_tx.xmit_drain((_sc), (_rtype)) + +extern void ath_xmit_setup_legacy(struct ath_softc *sc); + +#endif |