6ecc40aefc
* Close down some of the kickpcu races, where the interrupt handler can and will run concurrently with the taskqueue. * Close down the TXQ active/completed race between the interrupt handler and the concurrently running tx completion taskqueue function. * Add some tx and rx interrupt count tracking, for debugging. * Fix the kickpcu logic in ath_rx_proc() to not simply drain and restart the TX queue - instead, assume the hardware isn't (too) confused and just restart RX DMA. This may break on previous chipsets, so if it does I'll add a HAL flag and conditionally handle this (ie, for broken chipsets, I'll just restore the "stop PCU / flush things / restart PCU" logic.) * Misc stuff Sponsored by: Hobnob, Inc.
63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
/*-
|
|
* 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__
|
|
|
|
/*
|
|
* How 'busy' to try and keep the hardware txq
|
|
*/
|
|
#define ATH_AGGR_MIN_QDEPTH 2
|
|
|
|
/*
|
|
* 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
|
|
|
|
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
|