c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Use is subject to license terms.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Copyright (c) 2008 Atheros Communications Inc.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Permission to use, copy, modify, and/or distribute this software for any
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * purpose with or without fee is hereby granted, provided that the above
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * copyright notice and this permission notice appear in all copies.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/param.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/types.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/signal.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/stream.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/termio.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/errno.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/file.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/cmn_err.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/stropts.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/strsubr.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/strtty.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/kbio.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/cred.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/stat.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/consdev.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/kmem.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/modctl.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/ddi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/sunddi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/pci.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/errno.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/mac_provider.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/dlpi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/ethernet.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/list.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/byteorder.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/strsun.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/policy.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/common.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/nd.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/mi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/wifi_ioctl.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/mac_wifi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include "arn_core.h"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define BITS_PER_BYTE 8
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define OFDM_PLCP_BITS 22
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define HT_RC_2_MCS(_rc) ((_rc) & 0x0f)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define HT_RC_2_STREAMS(_rc) ((((_rc) & 0x78) >> 3) + 1)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define HT_LTF(_ns) (4 * (_ns))
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define SYMBOL_TIME(_ns) ((_ns) << 2) /* ns * 4 us */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define SYMBOL_TIME_HALFGI(_ns) (((_ns) * 18 + 4) / 5) /* ns * 3.6 us */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#define NUM_SYMBOLS_PER_USEC(_usec) (_usec >> 2)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#define NUM_SYMBOLS_PER_USEC_HALFGI(_usec) (((_usec*5)-4)/18)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define OFDM_SIFS_TIME 16
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic uint32_t bits_per_symbol[][2] = {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* 20MHz 40MHz */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 26, 54 }, /* 0: BPSK */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 52, 108 }, /* 1: QPSK 1/2 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 78, 162 }, /* 2: QPSK 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 104, 216 }, /* 3: 16-QAM 1/2 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 156, 324 }, /* 4: 16-QAM 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 208, 432 }, /* 5: 64-QAM 2/3 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 234, 486 }, /* 6: 64-QAM 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 260, 540 }, /* 7: 64-QAM 5/6 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 52, 108 }, /* 8: BPSK */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 104, 216 }, /* 9: QPSK 1/2 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 156, 324 }, /* 10: QPSK 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 208, 432 }, /* 11: 16-QAM 1/2 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 312, 648 }, /* 12: 16-QAM 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 416, 864 }, /* 13: 64-QAM 2/3 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 468, 972 }, /* 14: 64-QAM 3/4 */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China { 520, 1080 }, /* 15: 64-QAM 5/6 */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define IS_HT_RATE(_rate) ((_rate) & 0x80)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#ifdef ARN_TX_AGGREGRATION
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic void arn_tx_send_ht_normal(struct arn_softc *sc, struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid, list_t *bf_list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic void arn_tx_complete_buf(struct arn_softc *sc, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_t *bf_q, int txok, int sendbar);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic void arn_tx_txqaddbuf(struct arn_softc *sc, struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_t *buf_list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic void arn_buf_set_rate(struct arn_softc *sc, struct ath_buf *bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic int arn_tx_num_badfrms(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf, int txok);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic void arn_tx_rc_status(struct ath_buf *bf, struct ath_desc *ds,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int nbad, int txok, boolean_t update_rc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_get_beaconconfig(struct arn_softc *sc, struct ath_beacon_config *conf)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in = ic->ic_bss;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* fill in beacon config data */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China conf->beacon_interval = in->in_intval ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China in->in_intval : ATH_DEFAULT_BINTVAL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China conf->listen_interval = 100;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China conf->dtim_count = 1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China conf->bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf->listen_interval;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Aggregation logic */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#ifdef ARN_TX_AGGREGATION
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Check if it's okay to send out aggregates */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_aggr_query(struct arn_softc *sc, struct ath_node *an, uint8_t tidno)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid = ATH_AN_2_TID(an, tidno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->state & AGGR_ADDBA_COMPLETE ||
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state & AGGR_ADDBA_PROGRESS)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * queue up a dest/ac pair for tx scheduling
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * NB: must be called with txq lock held
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_ac *ac = tid->ac;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* if tid is paused, hold off */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->paused)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* add tid to ac atmost once */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->sched = B_TRUE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&ac->tid_q, &tid->list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* add node ac to txq atmost once */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->sched = B_TRUE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&txq->axq_acq, &ac->list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* pause a tid */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_pause_tid(struct arn_softc *sc, struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = &sc->sc_txq[tid->ac->qnum];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* resume a tid and schedule aggregate */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_resume_tid(struct arn_softc *sc, struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = &sc->sc_txq[tid->ac->qnum];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(tid->paused > 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->paused > 0)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(&tid->buf_q))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Add this TID to scheduler and try to send out aggregates
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_queue_tid(txq, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_txq_schedule(sc, txq);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* flush tid's software queue and send frames as non-ampdu's */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_flush_tid(struct arn_softc *sc, struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = &sc->sc_txq[tid->ac->qnum];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(tid->paused > 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->paused > 0) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China while (!list_empty(&tid->buf_q)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(!bf_isretried(bf));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&tid->buf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_send_ht_normal(sc, txq, tid, &list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Update block ack window */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_update_baw(struct arn_softc *sc, struct ath_atx_tid *tid, int seqno)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int index, cindex;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China index = ATH_BA_INDEX(tid->seq_start, seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->tx_buf[cindex] = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China while (tid->baw_head != tid->baw_tail && !tid->tx_buf[tid->baw_head]) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China INCR(tid->seq_start, IEEE80211_SEQ_MAX);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China INCR(tid->baw_head, ATH_TID_MAX_BUFS);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Add a sub-frame to block ack window */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_addto_baw(struct arn_softc *sc, struct ath_atx_tid *tid,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int index, cindex;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_isretried(bf))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China index = ATH_BA_INDEX(tid->seq_start, bf->bf_seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(tid->tx_buf[cindex] == NULL);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->tx_buf[cindex] = bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (index >= ((tid->baw_tail - tid->baw_head) &
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (ATH_TID_MAX_BUFS - 1))) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->baw_tail = cindex;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China INCR(tid->baw_tail, ATH_TID_MAX_BUFS);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * TODO: For frame(s) that are in the retry state, we will reuse the
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * sequence number(s) without setting the retry bit. The
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * alternative is to give up on these and BAR the receiver's window
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tid_drain(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(&tid->buf_q))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&tid->buf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_isretried(bf))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_update_baw(sc, tid, bf->bf_seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_complete_buf(sc, bf, &list, 0, 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->seq_next = tid->seq_start;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->baw_tail = tid->baw_head;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_set_retry(struct arn_softc *sc, struct ath_buf *bf)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China wh = (struct ieee80211_frame *)bf->bf_dma.mem_va;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type |= BUF_RETRY;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_retries++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *(uint16_t *)&wh->i_seq[0] |= LE_16(0x0800); /* ??? */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic struct ath_buf *
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_clone_txbuf(struct arn_softc *sc, struct ath_buf *bf)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *tbf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_txbuflock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(!list_empty((&sc->sc_txbuf_list)));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tbf = list_head(&sc->sc_txbuf_list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&sc->sc_txbuf_list, tbf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_txbuflock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH_TXBUF_RESET(tbf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tbf->bf_daddr = bf->bf_daddr; /* physical addr of desc */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tbf->bf_dma = bf->bf_dma; /* dma area for buf */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *(tbf->bf_desc) = *(bf->bf_desc); /* virtual addr of desc */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tbf->bf_state = bf->bf_state; /* buffer state */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_complete_aggr(struct arn_softc *sc, struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf, list_t *bf_q, int txok)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf_next, *bf_last = bf->bf_lastbf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_desc *ds = bf_last->bf_desc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_t list, list_pending;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t seq_st = 0, acked_cnt = 0, txfail_cnt = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t ba[WME_BA_BMP_SIZE >> 5];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int isaggr, txfail, txpending, sendbar = 0, needreset = 0, nbad = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China boolean_t rc_update = B_TRUE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China an = ATH_NODE(in); /* Be sure in != NULL */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid = ATH_AN_2_TID(an, bf->bf_tidno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China isaggr = bf_isaggr(bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China memset(ba, 0, WME_BA_BMP_SIZE >> 3);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (isaggr && txok) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ATH_DS_TX_BA(ds)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China seq_st = ATH_DS_BA_SEQ(ds);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China memcpy(ba, ATH_DS_BA_BITMAP(ds),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China WME_BA_BMP_SIZE >> 3);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * AR5416 can become deaf/mute when BA
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * issue happens. Chip needs to be reset.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * But AP code may have sychronization issues
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * when perform internal reset in this routine.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Only enable reset in STA mode for now.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_ah->ah_opmode == ATH9K_M_STA)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list_pending, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nbad = arn_tx_num_badfrms(sc, bf, txok);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txfail = txpending = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_next = bf->bf_next;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ATH_BA_ISSET(ba, ATH_BA_INDEX(seq_st, bf->bf_seqno))) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * transmit completion, subframe is
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * acked by block ack
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China } else if (!isaggr && txok) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* transmit completion */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!(tid->state & AGGR_CLEANUP) &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ds->ds_txstat.ts_flags != ATH9K_TX_SW_ABORTED) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf->bf_retries < ATH_MAX_SW_RETRIES) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_set_retry(sc, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type |= BUF_XRETRY;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * cleanup in progress, just fail
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * the un-acked sub-frames
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_next == NULL) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* INIT_LIST_HEAD */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ASSERT(!list_empty(bf_q));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(bf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!txpending) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * complete the acked-ones/xretried ones; update
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * block-ack window
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_update_baw(sc, tid, bf->bf_seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_rc_status(bf, ds, nbad, txok, B_TRUE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rc_update = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_rc_status(bf, ds, nbad, txok, B_FALSE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_complete_buf(sc, bf, list, !txfail, sendbar);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* retry the un-acked ones */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf->bf_next == NULL &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_last->bf_status & ATH_BUFSTATUS_STALE) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *tbf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tbf = arn_clone_txbuf(sc, bf_last);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_cleartxdesc(sc->sc_ah, tbf->bf_desc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&list, tbf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Clear descriptor status words for
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * software retry
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_cleartxdesc(sc->sc_ah, bf->bf_desc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Put this buffer to the temporary pending
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * queue to retain ordering
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_splice_tail_init(&list, &list_pending);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Insert src list after dst list.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Empty src list thereafter
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_move_tail(&list_pending, &list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* should re-initialize list here??? */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->state & AGGR_CLEANUP) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid->baw_head == tid->baw_tail) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_ADDBA_COMPLETE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->addba_exchangeattempts = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_CLEANUP;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* send buffered frames as singles */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_flush_tid(sc, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * prepend un-acked frames to the beginning of
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * the pending frame queue
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!list_empty(&list_pending)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_move_tail(&list_pending, &tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_queue_tid(txq, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_lookup_rate(struct arn_softc *sc, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rate_table = sc->sc_currates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath9k_tx_rate *rates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_tx_info_priv *tx_info_priv;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t max_4ms_framelen, frmlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t aggr_limit, legacy = 0, maxampdu;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates = (struct ath9k_tx_rate *)bf->rates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_info_priv = (struct ath_tx_info_priv *)&bf->tx_info_priv;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Find the lowest frame length among the rate series that will have a
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * 4ms transmit duration.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * TODO - TXOP limit needs to be considered.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China max_4ms_framelen = ATH_AMPDU_LIMIT_MAX;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (i = 0; i < 4; i++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (rates[i].count) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!WLAN_RC_PHY_HT
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (rate_table->info[rates[i].idx].phy)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rate_table->info[rates[i].idx].max_4ms_framelen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China max_4ms_framelen = min(max_4ms_framelen, frmlen);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * limit aggregate size by the minimum rate if rate selected is
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * not a probe rate, if rate selected is a probe rate then
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * avoid aggregation of this packet.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China aggr_limit = min(max_4ms_framelen, (uint32_t)ATH_AMPDU_LIMIT_DEFAULT);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * h/w can accept aggregates upto 16 bit lengths (65535).
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * The IE, however can hold upto 65536, which shows up here
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * as zero. Ignore 65536 since we are constrained by hw.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China maxampdu = tid->an->maxampdu;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China aggr_limit = min(aggr_limit, maxampdu);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (aggr_limit);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Returns the number of delimiters to be added to
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * meet the minimum required mpdudensity.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * caller should make sure that the rate is HT rate .
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_compute_num_delims(struct arn_softc *sc, struct ath_atx_tid *tid,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf, uint16_t frmlen)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rt = sc->sc_currates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath9k_tx_rate *rates = (struct ath9k_tx_rate *)bf->rates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t nsymbits, nsymbols, mpdudensity;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t minlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint8_t rc, flags, rix;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int width, half_gi, ndelim, mindelim;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* Select standard number of delimiters based on frame length alone */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ndelim = ATH_AGGR_GET_NDELIM(frmlen);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * If encryption enabled, hardware requires some more padding between
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * TODO - this could be improved to be dependent on the rate.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * The hardware can keep up at lower rates, but not higher rates
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf->bf_keytype != ATH9K_KEY_TYPE_CLEAR)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ndelim += ATH_AGGR_ENCRYPTDELIM;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Convert desired mpdu density from microeconds to bytes based
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * on highest rate in rate series (i.e. first rate) to determine
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * required minimum length for subframe. Take into account
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * whether high rate is 20 or 40Mhz and half or full GI.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mpdudensity = tid->an->mpdudensity;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * If there is no mpdu density restriction, no further calculation
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (mpdudensity == 0)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (ndelim);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rix = rates[0].idx;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = rates[0].flags;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rc = rt->info[rix].ratecode;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China width = (flags & ATH9K_TX_RC_40_MHZ_WIDTH) ? 1 : 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China half_gi = (flags & ATH9K_TX_RC_SHORT_GI) ? 1 : 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nsymbols = NUM_SYMBOLS_PER_USEC_HALFGI(mpdudensity);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nsymbols = NUM_SYMBOLS_PER_USEC(mpdudensity);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (nsymbols == 0)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nsymbits = bits_per_symbol[HT_RC_2_MCS(rc)][width];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China minlen = (nsymbols * nsymbits) / BITS_PER_BYTE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (frmlen < minlen) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mindelim = (minlen - frmlen) / ATH_AGGR_DELIM_SZ;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ndelim = max(mindelim, ndelim);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (ndelim);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic enum ATH_AGGR_STATUS
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_form_aggr(struct arn_softc *sc, struct ath_atx_tid *tid,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf, *bf_first, *bf_prev = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int rl = 0, nframes = 0, ndelim, prev_al = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t aggr_limit = 0, al = 0, bpad = 0,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China al_delta, h_baw = tid->baw_size / 2;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_first = list_head(&tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* do not step over block-ack window */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!BAW_WITHIN(tid->seq_start, tid->baw_size, bf->bf_seqno)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China status = ATH_AGGR_BAW_CLOSED;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China aggr_limit = arn_lookup_rate(sc, bf, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* do not exceed aggregation limit */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China al_delta = ATH_AGGR_DELIM_SZ + bf->bf_frmlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (aggr_limit < (al + bpad + al_delta + prev_al))) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China status = ATH_AGGR_LIMITED;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* do not exceed subframe limit */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (nframes >= min((int)h_baw, ATH_AMPDU_SUBFRAME_DEFAULT)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China status = ATH_AGGR_LIMITED;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* add padding for previous frame to aggregation length */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China al += bpad + al_delta;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Get the delimiters needed to meet the MPDU
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * density for this node.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_compute_num_delims(sc, tid, bf_first, bf->bf_frmlen);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bpad = PADBYTES(al_delta) + (ndelim << 2);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_next = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_desc->ds_link = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* link buffers of this frame to the aggregate */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_addto_baw(sc, tid, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_aggr_middle(sc->sc_ah, bf->bf_desc, ndelim);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&tid->buf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(bf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_prev->bf_next = bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_prev->bf_desc->ds_link = bf->bf_daddr;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China } while (!list_empty(&tid->buf_q));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_first->bf_al = al;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_first->bf_nframes = nframes;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (status);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_sched_aggr(struct arn_softc *sc, struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China enum ATH_AGGR_STATUS status;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(&tid->buf_q))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* INIT_LIST_HEAD */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&bf_q, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China status = arn_tx_form_aggr(sc, tid, &bf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * no frames picked up to be aggregated;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * block-ack window is not open.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(&bf_q))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&bf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_lastbf = list_object(&bf_q, bf->bf_node.list_prev);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* if only one frame, send as non-aggregate */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf->bf_nframes == 1) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type &= ~BUF_AGGR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_buf_set_rate(sc, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_txqaddbuf(sc, txq, &bf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* setup first desc of aggregate */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type |= BUF_AGGR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_buf_set_rate(sc, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_aggr_first(sc->sc_ah, bf->bf_desc, bf->bf_al);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* anchor last desc of aggregate */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_aggr_depth++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_txqaddbuf(sc, txq, &bf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China } while (txq->axq_depth < ATH_AGGR_MIN_QDEPTH &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China status != ATH_AGGR_BAW_CLOSED);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_aggr_start(struct arn_softc *sc, struct ieee80211_node *in,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t tid, uint16_t *ssn)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *txtid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China an = ATH_NODE(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_flags & SC_OP_TXAGGR) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid = ATH_AN_2_TID(an, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->state |= AGGR_ADDBA_PROGRESS;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_pause_tid(sc, txtid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *ssn = txtid->seq_start;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_aggr_stop(struct arn_softc *sc, struct ieee80211_node *in, uint16_t tid)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an = ATH_NODE(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = &sc->sc_txq[txtid->ac->qnum];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&list, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (txtid->state & AGGR_CLEANUP)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->addba_exchangeattempts = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_pause_tid(sc, txtid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* drop all software retried frames and mark this TID */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China while (!list_empty(&txtid->buf_q)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* list_first_entry */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&txtid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!bf_isretried(bf)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * NB: it's based on the assumption that
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * software retried frame will always stay
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * at the head of software queue.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&txtid->buf_q, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_insert_tail(&list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_update_baw(sc, txtid, bf->bf_seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // ath_tx_complete_buf(sc, bf, &list, 0, 0); /* to do */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (txtid->baw_head != txtid->baw_tail) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->state |= AGGR_CLEANUP;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->state &= ~AGGR_ADDBA_COMPLETE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->addba_exchangeattempts = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_flush_tid(sc, txtid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_aggr_resume(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *txtid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China an = ATH_NODE(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_flags & SC_OP_TXAGGR) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid = ATH_AN_2_TID(an, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->baw_size = (0x8) << sc->sc_ht_conf.ampdu_factor;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->state |= AGGR_ADDBA_COMPLETE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->state &= ~AGGR_ADDBA_PROGRESS;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_resume_tid(sc, txtid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_aggr_check(struct arn_softc *sc, struct ath_node *an, uint8_t tidno)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *txtid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!(sc->sc_flags & SC_OP_TXAGGR))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (B_FALSE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid = ATH_AN_2_TID(an, tidno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!(txtid->state & AGGR_ADDBA_PROGRESS) &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (txtid->addba_exchangeattempts < ADDBA_EXCHANGE_ATTEMPTS)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txtid->addba_exchangeattempts++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (B_TRUE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (B_FALSE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Queue Management */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_txq_drain_pending_buffers(struct arn_softc *sc, struct ath_txq *txq)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_ac *ac, *ac_tmp;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid, *tid_tmp;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_for_each_entry_safe(ac, ac_tmp, &txq->axq_acq) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&txq->axq_acq, ac);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_for_each_entry_safe(tid, tid_tmp, &ac->tid_q) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&ac->tid_q, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tid_drain(sc, txq, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_get_qnum(struct arn_softc *sc, int qtype, int haltype)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China switch (qtype) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China case ATH9K_TX_QUEUE_DATA:
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (haltype >= ARRAY_SIZE(sc->sc_haltype2q)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_FATAL, "arn: arn_tx_get_qnum(): "
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "HAL AC %u out of range, max %zu!\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China haltype, ARRAY_SIZE(sc->sc_haltype2q)));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qnum = sc->sc_haltype2q[haltype];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China case ATH9K_TX_QUEUE_BEACON:
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qnum = sc->sc_beaconq;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China case ATH9K_TX_QUEUE_CAB:
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qnum = sc->sc_cabq->axq_qnum;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_test_get_txq(struct arn_softc *sc, struct ieee80211_node *in,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh, uint8_t type)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_qosframe *qwh = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (in->in_flags & IEEE80211_NODE_QOS) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if ((type & IEEE80211_FC0_TYPE_MASK) ==
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_DATA) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qwh = (struct ieee80211_qosframe *)wh;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid = qwh->i_qos[0] & IEEE80211_QOS_TID;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_BK;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_BE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_VI;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_VO;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_VO;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China } else if ((type & IEEE80211_FC0_TYPE_MASK) ==
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_MGT) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_VO;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China } else if ((type & IEEE80211_FC0_TYPE_MASK) ==
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_CTL) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_VO;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qos_ac = WME_AC_BK;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qnum = arn_get_hal_qnum(qos_ac, sc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq = &sc->sc_txq[qnum];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (txq->axq_depth >= (ATH_TXBUF - 20)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "TX queue: %d is full, depth: %d\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qnum, txq->axq_depth));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* stop th queue */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China sc->sc_resched_needed = B_TRUE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->stopped = 1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Called only when tx aggregation is enabled and HT is supported */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaassign_aggr_tid_seqno(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_qosframe *qwh = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China in = ieee80211_find_txnode(ic, wh->i_addr1);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (in == NULL) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_problem("assign_aggr_tid_seqno():"
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "failed to find tx node\n");
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China an = ATH_NODE(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (in->in_flags & IEEE80211_NODE_QOS) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China qwh = (struct ieee80211_qosframe *)wh;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_tidno = qwh->i_qos[0] & IEEE80211_QOS_TID;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * For HT capable stations, we save tidno for later use.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * We also override seqno set by upper layer with the one
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * in tx aggregation state.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * If fragmentation is on, the sequence number is
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * not overridden, since it has been
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * incremented by the fragmentation routine.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * FIXME: check if the fragmentation threshold exceeds
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * IEEE80211 max.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid = ATH_AN_2_TID(an, bf->bf_tidno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *(uint16_t *)&wh->i_seq[0] =
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China LE_16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_seqno = tid->seq_next;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* LINTED E_CONSTANT_CONDITION */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China INCR(tid->seq_next, IEEE80211_SEQ_MAX);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* release node */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ieee80211_free_node(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Compute the number of bad frames */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_num_badfrms(struct arn_softc *sc, struct ath_buf *bf, int txok)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf_last = bf->bf_lastbf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_desc *ds = bf_last->bf_desc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint16_t seq_st = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t ba[WME_BA_BMP_SIZE >> 5];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ds->ds_txstat.ts_flags == ATH9K_TX_SW_ABORTED)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China isaggr = bf_isaggr(bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China seq_st = ATH_DS_BA_SEQ(ds);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China memcpy(ba, ATH_DS_BA_BITMAP(ds), WME_BA_BMP_SIZE >> 3);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ba_index = ATH_BA_INDEX(seq_st, bf->bf_seqno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!txok || (isaggr && !ATH_BA_ISSET(ba, ba_index)))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = bf->bf_next;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_send_ht_normal(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type &= ~BUF_AMPDU;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* update starting sequence number for subsequent ADDBA request */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China INCR(tid->seq_start, IEEE80211_SEQ_MAX);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_nframes = 1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_lastbf = bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_buf_set_rate(sc, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_txqaddbuf(sc, txq, list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Insert a chain of ath_buf (descriptors) on a txq and
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * assume the descriptors are already chained together by caller.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_txqaddbuf(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Insert the frame on the outbound list and
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * pass it on to the hardware.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(list))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_splice_tail_init(list, &txq->axq_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_depth++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_totalqueued++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_linkbuf = list_object(list, txq->axq_q.prev);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_QUEUE,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "qnum: %d, txq depth: %d\n", txq->axq_qnum, txq->axq_depth));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (txq->axq_link == NULL) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_puttxbuf(sc->sc_ah, txq->axq_qnum, bf->bf_daddr);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "TXDP[%u] = %llx (%p)\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *txq->axq_link = bf->bf_daddr;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "link[%u] (%p)=%llx (%p)\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_qnum, txq->axq_link,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ito64(bf->bf_daddr), bf->bf_desc));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_link = &(bf->bf_lastbf->bf_desc->ds_link);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_txstart(sc->sc_ah, txq->axq_qnum);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#endif /* ARN_TX_AGGREGATION */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinastatic struct ath_buf *
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_get_buffer(struct arn_softc *sc)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_buf *bf = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_txbuflock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&sc->sc_txbuf_list);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* Check if a tx buffer is available */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&sc->sc_txbuf_list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (list_empty(&sc->sc_txbuf_list)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_tx(): "
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "stop queue\n"));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_qstop++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_txbuflock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinasetup_tx_flags(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t pktlen)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags |= ATH9K_TXDESC_CLRDMASK; /* needed for crypto errors */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags |= ATH9K_TXDESC_INTREQ;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags |= ATH9K_TXDESC_NOACK; /* no ack on broad/multicast */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_noack++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (pktlen > ic->ic_rtsthreshold) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags |= ATH9K_TXDESC_RTSENA; /* RTS based on frame length */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_rts++;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_tx_setup_buffer(struct arn_softc *sc, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in, struct ieee80211_frame *wh,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t pktlen, uint32_t keytype)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH_TXBUF_RESET(bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (i = 0; i < 4; i++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->rates[i].idx = -1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->rates[i].flags = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->rates[i].count = 1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* LINTED E_ASSIGN_NARROW_CONV */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_frmlen = pktlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* Frame type */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_IS_DATA(wh) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type |= BUF_DATA) :
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type &= ~BUF_DATA);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_IS_BACK_REQ(wh) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type |= BUF_BAR) :
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type &= ~BUF_BAR);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_IS_PSPOLL(wh) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type |= BUF_PSPOLL) :
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type &= ~BUF_PSPOLL);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * The 802.11 layer marks whether or not we should
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * use short preamble based on the current mode and
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * negotiated parameters.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (in->in_capinfo & IEEE80211_CAPINFO_SHORT_PREAMBLE)) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type |= BUF_SHORT_PREAMBLE) :
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_state.bf_type &= ~BUF_SHORT_PREAMBLE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_flags = setup_tx_flags(sc, wh, pktlen);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_keytype = keytype;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* Assign seqno, tidno for tx aggrefation */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#ifdef ARN_TX_AGGREGATION
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ieee80211_is_data_qos(wh) && (sc->sc_flags & SC_OP_TXAGGR))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China assign_aggr_tid_seqno(sc, bf, wh);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#endif /* ARN_TX_AGGREGATION */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * ath_pkt_dur - compute packet duration (NB: not NAV)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * rix - rate index
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * pktlen - total bytes (delims + data + fcs + pads + pad delims)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * width - 0 for 20 MHz, 1 for 40 MHz
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * half_gi - to use 4us v/s 3.6 us for symbol time
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_pkt_duration(struct arn_softc *sc, uint8_t rix, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int width, int half_gi, boolean_t shortPreamble)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rate_table = sc->sc_currates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t nbits, nsymbits, duration, nsymbols;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int streams, pktlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China pktlen = bf_isaggr(bf) ? bf->bf_al : bf->bf_frmlen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rc = rate_table->info[rix].ratecode;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* for legacy rates, use old function to compute packet duration */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!IS_HT_RATE(rc))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (ath9k_hw_computetxtime(sc->sc_ah, rate_table, pktlen,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rix, shortPreamble));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* find number of symbols: PLCP + data */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nbits = (pktlen << 3) + OFDM_PLCP_BITS;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nsymbits = bits_per_symbol[HT_RC_2_MCS(rc)][width];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China nsymbols = (nbits + nsymbits - 1) / nsymbits;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China duration = SYMBOL_TIME(nsymbols);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China duration = SYMBOL_TIME_HALFGI(nsymbols);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* addup duration for legacy/ht training and signal fields */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China streams = HT_RC_2_STREAMS(rc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China duration += L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China return (duration);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Rate module function to set rate related fields in tx descriptor */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_buf_set_rate(struct arn_softc *sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rt;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_desc *ds = bf->bf_desc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_desc *lastds = bf->bf_desc; /* temp workground */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath9k_11n_rate_series series[4];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath9k_tx_rate *rates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int i, flags, rtsctsena = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t ctsduration = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint8_t rix = 0, cix, ctsrate = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (void) memset(series, 0, sizeof (struct ath9k_11n_rate_series) * 4);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates = bf->rates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (IEEE80211_HAS_MOREFRAGS(wh) ||
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China wh->i_seq[0] & IEEE80211_SEQ_FRAG_MASK) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[1].count = rates[2].count = rates[3].count = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[1].idx = rates[2].idx = rates[3].idx = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[0].count = ATH_TXMAXTRY;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* get the cix for the lowest valid rix */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rt = sc->sc_currates;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (i = 3; i >= 0; i--) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (rates[i].count && (rates[i].idx >= 0)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rix = rates[i].idx;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = (bf->bf_flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China cix = rt->info[rix].ctrl_rate;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * If 802.11g protection is enabled, determine whether to use RTS/CTS or
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * just CTS. Note that this is only done for OFDM/HT unicast frames.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_protmode != PROT_M_NONE &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China !(bf->bf_flags & ATH9K_TXDESC_NOACK) &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (rt->info[rix].phy == WLAN_RC_PHY_OFDM ||
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China WLAN_RC_PHY_HT(rt->info[rix].phy))) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_protmode == PROT_M_RTSCTS)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = ATH9K_TXDESC_RTSENA;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China else if (sc->sc_protmode == PROT_M_CTSONLY)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = ATH9K_TXDESC_CTSENA;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China cix = rt->info[sc->sc_protrix].ctrl_rate;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * For 11n, the default behavior is to enable RTS for hw retried frames.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * We enable the global flag here and let rate series flags determine
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * which rates will actually use RTS.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if ((ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) && bf_isdata(bf)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* 802.11g protection not needed, use our default behavior */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = ATH9K_TXDESC_RTSENA;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* Set protection if aggregate protection on */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_config.ath_aggr_prot &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (!bf_isaggr(bf) || (bf_isaggr(bf) && bf->bf_al < 8192))) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags = ATH9K_TXDESC_RTSENA;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China cix = rt->info[sc->sc_protrix].ctrl_rate;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* For AR5416 - RTS cannot be followed by a frame larger than 8K */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_isaggr(bf) && (bf->bf_al > ah->ah_caps.rts_aggr_limit))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China flags &= ~(ATH9K_TXDESC_RTSENA);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * CTS transmit rate is derived from the transmit rate by looking in the
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * h/w rate table. We must also factor in whether or not a short
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * preamble is to be used. NB: cix is set above where RTS/CTS is enabled
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ctsrate = rt->info[cix].ratecode |
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf_isshpreamble(bf) ? rt->info[cix].short_preamble : 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (i = 0; i < 4; i++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!rates[i].count || (rates[i].idx < 0))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rix = rates[i].idx;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].Rate = rt->info[rix].ratecode |
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf_isshpreamble(bf) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rt->info[rix].short_preamble : 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].Tries = rates[i].count;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].RateFlags =
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ((rates[i].flags & ATH9K_TX_RC_USE_RTS_CTS) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_RATESERIES_RTS_CTS : 0) |
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ((rates[i].flags & ATH9K_TX_RC_40_MHZ_WIDTH) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_RATESERIES_2040 : 0) |
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ((rates[i].flags & ATH9K_TX_RC_SHORT_GI) ?
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_RATESERIES_HALFGI : 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].PktDuration = ath_pkt_duration(sc, rix, bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (rates[i].flags & ATH9K_TX_RC_40_MHZ_WIDTH) != 0,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (rates[i].flags & ATH9K_TX_RC_SHORT_GI),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf_isshpreamble(bf));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].ChSel = sc->sc_tx_chainmask;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_RATE,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "series[%d]--flags & ATH9K_TX_RC_USE_RTS_CTS = %08x"
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "--flags & ATH9K_TX_RC_40_MHZ_WIDTH = %08x"
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "--flags & ATH9K_TX_RC_SHORT_GI = %08x\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[i].flags & ATH9K_TX_RC_USE_RTS_CTS,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[i].flags & ATH9K_TX_RC_40_MHZ_WIDTH,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[i].flags & ATH9K_TX_RC_SHORT_GI));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_RATE,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "retry count:%d\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (rt->info[rates[i].idx].ratekbps)/1000,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China rates[i].count));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* set dur_update_en for l-sig computation except for PS-Poll frames */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_ratescenario(ah, ds, lastds, !bf_ispspoll(bf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ctsrate, ctsduration,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China series, 4, flags);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (sc->sc_config.ath_aggr_prot && flags)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_burstduration(ah, ds, 8192);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_tx_complete(struct arn_softc *sc, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_xmit_status *tx_status)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China boolean_t is_data = bf_isdata(bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "TX complete\n"));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tx_status->flags & ATH_TX_BAR)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status->flags &= ~ATH_TX_BAR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->rates[0].count = tx_status->retries + 1;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tx_status(sc, bf, is_data);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* To complete a chain of buffers associated a frame */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_tx_complete_buf(struct arn_softc *sc, struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int txok, int sendbar)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_xmit_status tx_status;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Set retry information.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * NB: Don't use the information in the descriptor, because the frame
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * could be software retried.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status.retries = bf->bf_retries;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status.flags = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status.flags = ATH_TX_BAR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status.flags |= ATH_TX_ERROR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_isxretried(bf))
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_status.flags |= ATH_TX_XRETRY;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* complete this frame */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_complete(sc, bf, &tx_status);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Return the list of ath_buf of this mpdu to free queue
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_stopdma(struct arn_softc *sc, struct ath_txq *txq)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_stoptxdma(ah, txq->axq_qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_drain_txdataq(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "tx queue [%u] %x, link %p\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_gettxbuf(ah, txq->axq_qnum), txq->axq_link));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Drain only the data queues */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_drain_txdataq(struct arn_softc *sc, boolean_t retry_tx)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China int i, status, npend = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!(sc->sc_flags & SC_OP_INVALID)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ARN_TXQ_SETUP(sc, i)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_tx_stopdma(sc, &sc->sc_txq[i]);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * The TxDMA may not really be stopped.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Double check the hal tx pending count
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China npend += ath9k_hw_numtxpending(ah,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_txq[i].axq_qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* TxDMA not stopped, reset the hal */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_drain_txdataq(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "Unable to stop TxDMA. Reset HAL!\n"));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!ath9k_hw_reset(ah,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_ah->ah_curchan,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->tx_chan_width,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_tx_chainmask, sc->sc_rx_chainmask,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_ht_extprotspacing, B_TRUE, &status)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_FATAL, "arn: arn_drain_txdataq(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "unable to reset hardware; hal status %u\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ARN_TXQ_SETUP(sc, i))
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_tx_draintxq(sc, &sc->sc_txq[i]);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Setup a h/w transmit queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_txq_setup(struct arn_softc *sc, int qtype, int subtype)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_tx_queue_info qi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) memset(&qi, 0, sizeof (qi));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_subtype = subtype;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_physCompBuf = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Enable interrupts only for EOL and DESC conditions.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * We mark tx descriptors to receive a DESC interrupt
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * when a tx queue gets deep; otherwise waiting for the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * EOL to reap descriptors. Note that this is done to
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * reduce interrupt load and this only defers reaping
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * descriptors, never transmitting frames. Aside from
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * reducing interrupts this also permits more concurrency.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * The only potential downside is if the tx queue backs
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * up in which case the top half of the kernel may backup
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * due to a lack of tx descriptors.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * The UAPSD queue is an exception, since we take a desc-
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * based intr on the EOSP frames.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (qtype == ATH9K_TX_QUEUE_UAPSD)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_qflags = TXQ_FLAG_TXDESCINT_ENABLE;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_qflags = TXQ_FLAG_TXEOLINT_ENABLE |
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China TXQ_FLAG_TXDESCINT_ENABLE;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qnum = ath9k_hw_setuptxqueue(ah, qtype, &qi);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (qnum == -1) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * NB: don't print a message, this happens
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * normally on parts with too few tx queues
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (qnum >= ARRAY_SIZE(sc->sc_txq)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_FATAL, "arn: arn_txq_setup(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "hal qnum %u out of range, max %u!\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qnum, (unsigned int)ARRAY_SIZE(sc->sc_txq)));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_releasetxqueue(ah, qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!ARN_TXQ_SETUP(sc, qnum)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_txq *txq = &sc->sc_txq[qnum];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_qnum = qnum;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_intrcnt = 0; /* legacy */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_link = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_create(&txq->axq_list, sizeof (struct ath_buf),
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&txq->axq_acq, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_init(&txq->axq_lock, NULL, MUTEX_DRIVER, NULL);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_depth = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_aggr_depth = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_totalqueued = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_linkbuf = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_txqsetup |= 1<<qnum;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (&sc->sc_txq[qnum]);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Reclaim resources for a setup queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_cleanupq(struct arn_softc *sc, struct ath_txq *txq)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_releasetxqueue(sc->sc_ah, txq->axq_qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_txqsetup &= ~(1<<txq->axq_qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Setup a hardware data transmit queue for the specified
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * access control. The hal may not support all requested
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * queues in which case it will return a reference to a
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * previously setup queue. We record the mapping from ac's
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * to h/w queues for use by arn_tx_start and also track
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * the set of h/w queues being used to optimize work in the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * transmit interrupt handler and related routines.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_setup(struct arn_softc *sc, int haltype)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_txq *txq;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (haltype >= ARRAY_SIZE(sc->sc_haltype2q)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_FATAL, "arn: arn_tx_setup(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "HAL AC %u out of range, max %zu!\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China haltype, ARRAY_SIZE(sc->sc_haltype2q)));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq = arn_txq_setup(sc, ATH9K_TX_QUEUE_DATA, haltype);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (txq != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_haltype2q[haltype] = txq->axq_qnum;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_draintxq(struct arn_softc *sc, struct ath_txq *txq)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * This assumes output has been stopped.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf = list_head(&txq->axq_list);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_link = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_remove(&txq->axq_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf->bf_in = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_insert_tail(&sc->sc_txbuf_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Drain the transmit queues and reclaim resources */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_draintxq(struct arn_softc *sc, boolean_t retry_tx)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * stop beacon queue. The beacon will be freed when
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * we go to INIT state
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!(sc->sc_flags & SC_OP_INVALID)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_stoptxdma(sc->sc_ah, sc->sc_beaconq);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_draintxq(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "beacon queue %x\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_gettxbuf(sc->sc_ah, sc->sc_beaconq)));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_drain_txdataq(sc, retry_tx);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_txq_depth(struct arn_softc *sc, int qnum)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (sc->sc_txq[qnum].axq_depth);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_txq_aggr_depth(struct arn_softc *sc, int qnum)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (sc->sc_txq[qnum].axq_aggr_depth);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Update parameters for a transmit queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_txq_update(struct arn_softc *sc, int qnum,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_tx_queue_info *qinfo)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_tx_queue_info qi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (qnum == sc->sc_beaconq) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * XXX: for beacon queue, we just save the parameter.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * It will be picked up by arn_beaconq_config() when
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * it's necessary.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_beacon_qi = *qinfo;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ASSERT(sc->sc_txq[qnum].axq_qnum == qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_get_txq_props(ah, qnum, &qi);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_aifs = qinfo->tqi_aifs;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmin = qinfo->tqi_cwmin;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmax = qinfo->tqi_cwmax;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_burstTime = qinfo->tqi_burstTime;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_readyTime = qinfo->tqi_readyTime;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!ath9k_hw_set_txq_props(ah, qnum, &qi)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_FATAL,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "Unable to update hardware queue %u!\n", qnum));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_resettxqueue(ah, qnum); /* push to h/w */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaath_cabq_update(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_tx_queue_info qi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China int qnum = sc->sc_cabq->axq_qnum;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_beacon_config conf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Ensure the readytime % is within the bounds.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (sc->sc_config.cabqReadytime < ATH9K_READY_TIME_LO_BOUND)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_config.cabqReadytime = ATH9K_READY_TIME_LO_BOUND;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China else if (sc->sc_config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_get_beaconconfig(sc, &conf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_readyTime =
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (conf.beacon_interval * sc->sc_config.cabqReadytime) / 100;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) arn_txq_update(sc, qnum, &qi);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_get_keytype(const struct ieee80211_cipher *cip)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China static const uint8_t ciphermap[] = {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_WEP, /* IEEE80211_CIPHER_WEP */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_TKIP, /* IEEE80211_CIPHER_TKIP */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_AES_OCB, /* IEEE80211_CIPHER_AES_OCB */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_AES_CCM, /* IEEE80211_CIPHER_AES_CCM */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_CKIP, /* IEEE80211_CIPHER_CKIP */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_CIPHER_CLR, /* IEEE80211_CIPHER_NONE */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ASSERT(cip->ic_cipher < ARRAY_SIZE(ciphermap));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China index = cip->ic_cipher;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ciphermap[index] == ATH9K_CIPHER_WEP)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ATH9K_KEY_TYPE_WEP);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China else if (ciphermap[index] == ATH9K_CIPHER_TKIP)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ATH9K_KEY_TYPE_TKIP);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China else if (ciphermap[index] == ATH9K_CIPHER_AES_CCM)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ATH9K_KEY_TYPE_AES);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ATH9K_KEY_TYPE_CLEAR);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Display buffer */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_dump_line(unsigned char *p, uint32_t len, boolean_t isaddress,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China char *pnumeric = "0123456789ABCDEF";
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China char hex[((2 + 1) * 16) + 1];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China char *phex = hex;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China char ascii[16 + 1];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China char *pascii = ascii;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t grouped = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (isaddress) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_problem("arn: %08x: ", p);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_problem("arn: ");
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *phex++ = pnumeric[((uint8_t)*p) / 16];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *phex++ = pnumeric[((uint8_t)*p) % 16];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (++grouped >= group) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China *pascii++ = (*p >= 32 && *p < 128) ? *p : '.';
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_problem("%-*s|%-*s|\n", (2 * 16) +
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (16 / group), hex, 16, ascii);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_dump_pkg(unsigned char *p, uint32_t len, boolean_t isaddress,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t perline;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China perline = (len < 16) ? len : 16;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_dump_line(p, perline, isaddress, group);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * The input parameter mp has following assumption:
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * For data packets, GLDv3 mac_wifi plugin allocates and fills the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * ieee80211 header. For management packets, net80211 allocates and
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * fills the ieee80211 header. In both cases, enough spaces in the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * header are left for encryption option.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_start(struct arn_softc *sc, struct ieee80211_node *in,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf, mblk_t *mp)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh = (struct ieee80211_frame *)mp->b_rptr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_desc *ds;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_txq *txq;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rt;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China enum ath9k_pkt_type atype;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China boolean_t shortPreamble, is_padding = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China uint32_t subtype, keytype = ATH9K_KEY_TYPE_CLEAR;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int32_t keyix, iswep, hdrlen, pktlen, mblen, mbslen;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * CRC are added by H/W, not encaped by driver,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * but we must count it in pkt length.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China pktlen = IEEE80211_CRC_LEN;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China iswep = wh->i_fc[1] & IEEE80211_FC1_WEP;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China keyix = ATH9K_TXKEYIX_INVALID;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China hdrlen = ieee80211_hdrspace(ic, mp->b_rptr);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (hdrlen == 28)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China is_padding = B_TRUE;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (iswep != 0) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China const struct ieee80211_cipher *cip;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_key *k;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Construct the 802.11 header+trailer for an encrypted
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * frame. The only reason this can fail is because of an
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * unknown or unsupported cipher/key type.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China k = ieee80211_crypto_encap(ic, mp);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (k == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_tx_start "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "crypto_encap failed\n"));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * This can happen when the key is yanked after the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * frame was queued. Just discard the frame; the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * 802.11 layer counts failures and provides
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * debugging/diagnostics.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China cip = k->wk_cipher;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China keytype = arn_tx_get_keytype(cip);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Adjust the packet + header lengths for the crypto
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * additions and calculate the h/w key index. When
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * a s/w mic is done the frame will have had any mic
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * added to it prior to entry so m0->m_pkthdr.len above will
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * account for it. Otherwise we need to add it to the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * packet length.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China hdrlen += cip->ic_header;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China pktlen += cip->ic_trailer;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((k->wk_flags & IEEE80211_KEY_SWMIC) == 0)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China pktlen += cip->ic_miclen;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China keyix = k->wk_keyix;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* packet header may have moved, reset our local pointer */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China wh = (struct ieee80211_frame *)mp->b_rptr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China dest = bf->bf_dma.mem_va;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China for (; mp != NULL; mp = mp->b_cont) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mblen = MBLKL(mp);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bcopy(mp->b_rptr, dest, mblen);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mbslen = (uintptr_t)dest - (uintptr_t)bf->bf_dma.mem_va;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China pktlen += mbslen;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (is_padding && (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_DATA)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China pktlen -= 2; /* real pkg len */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_setup_buffer(sc, bf, in, wh, pktlen, keytype);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* setup descriptors */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds = bf->bf_desc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China rt = sc->sc_currates;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ASSERT(rt != NULL);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_get_rate(sc, bf, wh);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an = (struct ath_node *)(in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Calculate Atheros packet type from IEEE80211 packet header
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * and setup for rate calculations.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China case IEEE80211_FC0_TYPE_MGT:
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (subtype == IEEE80211_FC0_SUBTYPE_BEACON)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_BEACON;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China else if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_PROBE_RESP;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China else if (subtype == IEEE80211_FC0_SUBTYPE_ATIM)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_ATIM;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_NORMAL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* force all ctl frames to highest queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq = &sc->sc_txq[arn_get_hal_qnum(WME_AC_VO, sc)];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China case IEEE80211_FC0_TYPE_CTL:
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_PSPOLL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* force all ctl frames to highest queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq = &sc->sc_txq[arn_get_hal_qnum(WME_AC_VO, sc)];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China case IEEE80211_FC0_TYPE_DATA:
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // arn_dump_pkg((unsigned char *)bf->bf_dma.mem_va,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // pktlen, 1, 1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype = ATH9K_PKT_TYPE_NORMAL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Always use background queue */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq = &sc->sc_txq[arn_get_hal_qnum(WME_AC_BE, sc)];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Unknown 802.11 frame */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_invalid++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* setup descriptor */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_link = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_data = bf->bf_dma.cookie.dmac_address;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Formulate first tx descriptor with tx controls.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_txdesc(ah, ds,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (pktlen), /* packet length */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China atype, /* Atheros packet type */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China MAX_RATE_POWER /* MAX_RATE_POWER */,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China keyix /* ATH9K_TXKEYIX_INVALID */,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China keytype /* ATH9K_KEY_TYPE_CLEAR */,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_flags /* flags */);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* LINTED E_BAD_PTR_CAST_ALIGN */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_tx_start(): to %s totlen=%d "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "an->an_tx_rate1sp=%d tx_rate2sp=%d tx_rate3sp=%d "
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "qnum=%d sht=%d dur = %d\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211_macaddr_sprintf(wh->i_addr1), mbslen, an->an_tx_rate1sp,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_rate2sp, an->an_tx_rate3sp,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq->axq_qnum, shortPreamble, *(uint16_t *)wh->i_dur));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_filltxdesc(ah, ds,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mbslen, /* segment length */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China B_TRUE, /* first segment */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China B_TRUE, /* last segment */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds); /* first descriptor */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* set rate related fields in tx descriptor */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_buf_set_rate(sc, bf, wh);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DMA_SYNC(bf->bf_dma, DDI_DMA_SYNC_FORDEV);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_insert_tail(&txq->axq_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (txq->axq_link == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China *txq->axq_link = bf->bf_daddr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_link = &ds->ds_link;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // arn_dump_pkg((unsigned char *)bf->bf_dma.mem_va, pktlen, 1, 1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_txstart(ah, txq->axq_qnum);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ic->ic_stats.is_tx_frags++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ic->ic_stats.is_tx_bytes += pktlen;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Transmit a management frame.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Note that management frames come directly from the 802.11 layer
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * and do not honor the send queue flow control.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Upon failure caller should free mp */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx(ieee80211com_t *ic, mblk_t *mp, uint8_t type)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct arn_softc *sc = (struct arn_softc *)ic;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_frame *wh;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ASSERT(mp->b_next == NULL);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* should check later */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (sc->sc_flags & SC_OP_INVALID) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((type & IEEE80211_FC0_TYPE_MASK) !=
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_DATA) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Grab a TX buffer */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = arn_tx_get_buffer(sc);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: arn_tx(): discard, "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "no xmit buf\n"));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ic->ic_stats.is_tx_nobuf++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((type & IEEE80211_FC0_TYPE_MASK) ==
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_TYPE_DATA) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_nobuf++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_resched_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_resched_needed = B_TRUE;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_resched_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_nobufmgt++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ENOMEM);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China wh = (struct ieee80211_frame *)mp->b_rptr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Locate node */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China in = ieee80211_find_txnode(ic, wh->i_addr1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (in == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China in->in_inact = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China switch (type & IEEE80211_FC0_TYPE_MASK) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China case IEEE80211_FC0_TYPE_DATA:
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ieee80211_encap(ic, mp, in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China IEEE80211_FC0_SUBTYPE_PROBE_RESP) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* fill time stamp */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China uint32_t *tstamp;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China tsf = ath9k_hw_gettsf64(ah);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* adjust 100us delay to xmit */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* LINTED E_BAD_PTR_CAST_ALIGN */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China tstamp = (uint32_t *)&wh[1];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China tstamp[0] = LE_32(tsf & 0xffffffff);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China tstamp[1] = LE_32(tsf >> 32);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_mgmt++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China error = arn_tx_start(sc, in, bf, mp);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (error != 0) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ic->ic_stats.is_tx_failed++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_insert_tail(&sc->sc_txbuf_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211_free_node(in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((type & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_DATA ||
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_printtxbuf(struct ath_buf *bf, int done)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_desc *ds = bf->bf_desc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China const struct ath_tx_status *ts = &ds->ds_txstat;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_XMIT, "arn: T(%p %p) %08x %08x %08x %08x %08x"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China " %08x %08x %08x %c\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds, bf->bf_daddr,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_link, ds->ds_data,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_ctl0, ds->ds_ctl1,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_hw[0], ds->ds_hw[1], ds->ds_hw[2], ds->ds_hw[3],
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China !done ? ' ' : (ts->ts_status == 0) ? '*' : '!'));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaath_tx_rc_status(struct ath_buf *bf,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_desc *ds,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China boolean_t update_rc)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_tx_info_priv *tx_info_priv =
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (struct ath_tx_info_priv *)&bf->tx_info_priv;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_info_priv->update_rc = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 &&
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (bf->bf_flags & ATH9K_TXDESC_NOACK) == 0) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf_isdata(bf)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (void) memcpy(&tx_info_priv->tx, &ds->ds_txstat,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China sizeof (tx_info_priv->tx));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_info_priv->n_frames = bf->bf_nframes;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_info_priv->n_bad_frames = nbad;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tx_info_priv->update_rc = B_TRUE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Process completed xmit descriptors from the specified queue */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_processq(struct arn_softc *sc, struct ath_txq *txq)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_desc *ds;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_tx_status *ts;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_node *an;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int32_t sr, lr, nacked = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int txok, nbad = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf = list_head(&txq->axq_list);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China txq->axq_link = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China /* txq->axq_linkbuf = NULL; */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds = bf->bf_desc; /* last decriptor */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ts = &ds->ds_txstat;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China status = ath9k_hw_txprocdesc(ah, ds);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_printtxbuf(bf, status == 0);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (status == EINPROGRESS) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_remove(&txq->axq_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (in != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an = ATH_NODE(in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Successful transmition */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ts->ts_status == 0) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_antenna = ts->ts_antenna;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_rssidelta =
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ts->ts_rssi - sc->sc_stats.ast_tx_rssi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_rssi = ts->ts_rssi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_err++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ts->ts_status & ATH9K_TXERR_XRETRY) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_xretries++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ts->ts_status & ATH9K_TXERR_FIFO) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_fifoerr++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ts->ts_status & ATH9K_TXERR_FILT) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_filtered++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_antenna = 0; /* invalidate */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sr = ts->ts_shortretry;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China lr = ts->ts_longretry;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_shortretry += sr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_stats.ast_tx_longretry += lr;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Hand the descriptor to the rate control algorithm.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if ((ts->ts_status & ATH9K_TXERR_FILT) == 0 &&
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (bf->bf_flags & ATH9K_TXDESC_NOACK) == 0) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * If frame was ack'd update the last rx time
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * used to workaround phantom bmiss interrupts.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ts->ts_status == 0) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_err++;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China an->an_tx_retr += sr + lr;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txok = (ds->ds_txstat.ts_status == 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (!bf_isampdu(bf)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * This frame is sent out as a single frame.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Use hardware retry status for this frame.
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_retries = ds->ds_txstat.ts_longretry;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ds->ds_txstat.ts_status & ATH9K_TXERR_XRETRY)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_state.bf_type |= BUF_XRETRY;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_rc_status(bf, ds, nbad, B_TRUE, txok);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ath_tx_complete_buf(sc, bf, txok, 0);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // arn_dump_pkg((unsigned char *)bf->bf_dma.mem_va,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China // bf->bf_frmlen, 1, 1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf->bf_in = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China list_insert_tail(&sc->sc_txbuf_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_txbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Reschedule stalled outbound packets
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_resched_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (sc->sc_resched_needed) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_resched_needed = B_FALSE;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mac_tx_update(ic->ic_mach);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_resched_lock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (nacked);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_handler(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China uint32_t qcumask = ((1 << ATH9K_NUM_TX_QUEUES) - 1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_gettxintrtxqs(sc->sc_ah, &qcumask);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Process each active queue.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ARN_TXQ_SETUP(sc, i) && (qcumask & (1 << i))) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China nacked += arn_tx_processq(sc, &sc->sc_txq[i]);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_lastrx = ath9k_hw_gettsf64(sc->sc_ah);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China/* Deferred processing of transmit interrupt */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_tx_int_proc(void *arg)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct arn_softc *sc = arg;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_tx_handler(sc);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China/* Node init & cleanup functions */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#ifdef ARN_TX_AGGREGATION
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_node_init(struct arn_softc *sc, struct ath_node *an)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_ac *ac;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China int tidno, acno;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (tidno = 0, tid = &an->tid[tidno]; tidno < WME_NUM_TID;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tidno++, tid++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->tidno = tidno;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->seq_start = tid->seq_next = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->baw_size = WME_MAX_BA;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->baw_head = tid->baw_tail = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->paused = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_CLEANUP;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&tid->buf_q, sizeof (struct ath_buf),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_buf, bf_node));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China acno = TID_TO_WME_AC(tidno);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->ac = &an->ac[acno];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_ADDBA_COMPLETE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_ADDBA_PROGRESS;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->addba_exchangeattempts = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (acno = 0, ac = &an->ac[acno]; acno < WME_NUM_AC; acno++, ac++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_create(&ac->tid_q, sizeof (struct ath_atx_tid),
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China offsetof(struct ath_atx_tid, list));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->qnum = arn_tx_get_qnum(sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->qnum = arn_tx_get_qnum(sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BK);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->qnum = arn_tx_get_qnum(sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_VI);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->qnum = arn_tx_get_qnum(sc,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_VO);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing Chinaarn_tx_node_cleanup(struct arn_softc *sc, struct ieee80211_node *in)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_ac *ac, *ac_tmp;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_atx_tid *tid, *tid_tmp;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_txq *txq;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China struct ath_node *an = ATH_NODE(in);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (ARN_TXQ_SETUP(sc, i)) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China txq = &sc->sc_txq[i];
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_enter(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_for_each_entry_safe(ac, ac_tmp, &txq->axq_acq) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid = list_head(&ac->tid_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (tid && tid->an != an)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&txq->axq_acq, ac);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ac->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_for_each_entry_safe(tid, tid_tmp,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China list_remove(&ac->tid_q, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_head(&tid->buf_q);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China while (bf != NULL) {
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if (bf->bf_in == in)
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf->bf_in = NULL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bf = list_next(&txq->axq_list, bf);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->sched = B_FALSE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China arn_tid_drain(sc, txq, tid);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_ADDBA_COMPLETE;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->addba_exchangeattempts = 0;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China tid->state &= ~AGGR_CLEANUP;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China mutex_exit(&txq->axq_lock);
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#endif /* ARN_TX_AGGREGATION */