9c85ff9164
In a very noisy 2.4GHz environment (with HT/40 enabled, making it worse) I saw the following occur: * the air was considered "busy" a lot of the time; * the cabq time is quite short due to staggered beacons being enabled; * it just wasn't able to keep up TX'ing CABQ frames; * .. and the cabq would swallow up all the TX ath_buf's. This patch introduces a twiddle which allows the maximum cabq depth to be set, forcing further frames to be dropped. It defaults to the TX buffer count at the moment, so the default behaviour isn't changed. I've also started fleshing out a similar setup for the data path, so it doesn't swallow up all the available TX buffers and preventing management frames (such as ADDBA) out. PR: kern/165895
262 lines
10 KiB
C
262 lines
10 KiB
C
/*-
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* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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/*
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* Ioctl-related defintions for the Atheros Wireless LAN controller driver.
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*/
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#ifndef _DEV_ATH_ATHIOCTL_H
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#define _DEV_ATH_ATHIOCTL_H
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struct ath_tx_aggr_stats {
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u_int32_t aggr_pkts[64];
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u_int32_t aggr_single_pkt;
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u_int32_t aggr_nonbaw_pkt;
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u_int32_t aggr_aggr_pkt;
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u_int32_t aggr_baw_closed_single_pkt;
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u_int32_t aggr_low_hwq_single_pkt;
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u_int32_t aggr_sched_nopkt;
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};
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struct ath_stats {
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u_int32_t ast_watchdog; /* device reset by watchdog */
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u_int32_t ast_hardware; /* fatal hardware error interrupts */
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u_int32_t ast_bmiss; /* beacon miss interrupts */
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u_int32_t ast_bmiss_phantom;/* beacon miss interrupts */
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u_int32_t ast_bstuck; /* beacon stuck interrupts */
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u_int32_t ast_rxorn; /* rx overrun interrupts */
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u_int32_t ast_rxeol; /* rx eol interrupts */
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u_int32_t ast_txurn; /* tx underrun interrupts */
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u_int32_t ast_mib; /* mib interrupts */
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u_int32_t ast_intrcoal; /* interrupts coalesced */
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u_int32_t ast_tx_packets; /* packet sent on the interface */
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u_int32_t ast_tx_mgmt; /* management frames transmitted */
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u_int32_t ast_tx_discard; /* frames discarded prior to assoc */
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u_int32_t ast_tx_qstop; /* output stopped 'cuz no buffer */
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u_int32_t ast_tx_encap; /* tx encapsulation failed */
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u_int32_t ast_tx_nonode; /* tx failed 'cuz no node */
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u_int32_t ast_tx_nombuf; /* tx failed 'cuz no mbuf */
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u_int32_t ast_tx_nomcl; /* tx failed 'cuz no cluster */
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u_int32_t ast_tx_linear; /* tx linearized to cluster */
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u_int32_t ast_tx_nodata; /* tx discarded empty frame */
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u_int32_t ast_tx_busdma; /* tx failed for dma resrcs */
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u_int32_t ast_tx_xretries;/* tx failed 'cuz too many retries */
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u_int32_t ast_tx_fifoerr; /* tx failed 'cuz FIFO underrun */
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u_int32_t ast_tx_filtered;/* tx failed 'cuz xmit filtered */
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u_int32_t ast_tx_shortretry;/* tx on-chip retries (short) */
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u_int32_t ast_tx_longretry;/* tx on-chip retries (long) */
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u_int32_t ast_tx_badrate; /* tx failed 'cuz bogus xmit rate */
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u_int32_t ast_tx_noack; /* tx frames with no ack marked */
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u_int32_t ast_tx_rts; /* tx frames with rts enabled */
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u_int32_t ast_tx_cts; /* tx frames with cts enabled */
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u_int32_t ast_tx_shortpre;/* tx frames with short preamble */
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u_int32_t ast_tx_altrate; /* tx frames with alternate rate */
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u_int32_t ast_tx_protect; /* tx frames with protection */
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u_int32_t ast_tx_ctsburst;/* tx frames with cts and bursting */
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u_int32_t ast_tx_ctsext; /* tx frames with cts extension */
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u_int32_t ast_rx_nombuf; /* rx setup failed 'cuz no mbuf */
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u_int32_t ast_rx_busdma; /* rx setup failed for dma resrcs */
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u_int32_t ast_rx_orn; /* rx failed 'cuz of desc overrun */
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u_int32_t ast_rx_crcerr; /* rx failed 'cuz of bad CRC */
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u_int32_t ast_rx_fifoerr; /* rx failed 'cuz of FIFO overrun */
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u_int32_t ast_rx_badcrypt;/* rx failed 'cuz decryption */
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u_int32_t ast_rx_badmic; /* rx failed 'cuz MIC failure */
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u_int32_t ast_rx_phyerr; /* rx failed 'cuz of PHY err */
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u_int32_t ast_rx_phy[64]; /* rx PHY error per-code counts */
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u_int32_t ast_rx_tooshort;/* rx discarded 'cuz frame too short */
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u_int32_t ast_rx_toobig; /* rx discarded 'cuz frame too large */
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u_int32_t ast_rx_packets; /* packet recv on the interface */
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u_int32_t ast_rx_mgt; /* management frames received */
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u_int32_t ast_rx_ctl; /* rx discarded 'cuz ctl frame */
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int8_t ast_tx_rssi; /* tx rssi of last ack */
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int8_t ast_rx_rssi; /* rx rssi from histogram */
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u_int8_t ast_tx_rate; /* IEEE rate of last unicast tx */
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u_int32_t ast_be_xmit; /* beacons transmitted */
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u_int32_t ast_be_nombuf; /* beacon setup failed 'cuz no mbuf */
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u_int32_t ast_per_cal; /* periodic calibration calls */
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u_int32_t ast_per_calfail;/* periodic calibration failed */
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u_int32_t ast_per_rfgain; /* periodic calibration rfgain reset */
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u_int32_t ast_rate_calls; /* rate control checks */
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u_int32_t ast_rate_raise; /* rate control raised xmit rate */
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u_int32_t ast_rate_drop; /* rate control dropped xmit rate */
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u_int32_t ast_ant_defswitch;/* rx/default antenna switches */
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u_int32_t ast_ant_txswitch;/* tx antenna switches */
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u_int32_t ast_ant_rx[8]; /* rx frames with antenna */
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u_int32_t ast_ant_tx[8]; /* tx frames with antenna */
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u_int32_t ast_cabq_xmit; /* cabq frames transmitted */
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u_int32_t ast_cabq_busy; /* cabq found busy */
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u_int32_t ast_tx_raw; /* tx frames through raw api */
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u_int32_t ast_ff_txok; /* fast frames tx'd successfully */
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u_int32_t ast_ff_txerr; /* fast frames tx'd w/ error */
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u_int32_t ast_ff_rx; /* fast frames rx'd */
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u_int32_t ast_ff_flush; /* fast frames flushed from staging q */
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u_int32_t ast_tx_qfull; /* tx dropped 'cuz of queue limit */
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int8_t ast_rx_noise; /* rx noise floor */
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u_int32_t ast_tx_nobuf; /* tx dropped 'cuz no ath buffer */
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u_int32_t ast_tdma_update;/* TDMA slot timing updates */
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u_int32_t ast_tdma_timers;/* TDMA slot update set beacon timers */
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u_int32_t ast_tdma_tsf; /* TDMA slot update set TSF */
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u_int16_t ast_tdma_tsfadjp;/* TDMA slot adjust+ (usec, smoothed)*/
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u_int16_t ast_tdma_tsfadjm;/* TDMA slot adjust- (usec, smoothed)*/
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u_int32_t ast_tdma_ack; /* TDMA tx failed 'cuz ACK required */
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u_int32_t ast_tx_raw_fail;/* raw tx failed 'cuz h/w down */
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u_int32_t ast_tx_nofrag; /* tx dropped 'cuz no ath frag buffer */
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u_int32_t ast_be_missed; /* missed beacons */
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u_int32_t ast_ani_cal; /* ANI calibrations performed */
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u_int32_t ast_rx_agg; /* number of aggregate frames RX'ed */
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u_int32_t ast_rx_halfgi; /* RX half-GI */
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u_int32_t ast_rx_2040; /* RX 40mhz frame */
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u_int32_t ast_rx_pre_crc_err; /* RX pre-delimiter CRC error */
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u_int32_t ast_rx_post_crc_err; /* RX post-delimiter CRC error */
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u_int32_t ast_rx_decrypt_busy_err; /* RX decrypt engine busy error */
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u_int32_t ast_rx_hi_rx_chain;
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u_int32_t ast_tx_htprotect; /* HT tx frames with protection */
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u_int32_t ast_rx_hitqueueend; /* RX hit descr queue end */
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u_int32_t ast_tx_timeout; /* Global TX timeout */
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u_int32_t ast_tx_cst; /* Carrier sense timeout */
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u_int32_t ast_tx_xtxop; /* tx exceeded TXOP */
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u_int32_t ast_tx_timerexpired; /* tx exceeded TX_TIMER */
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u_int32_t ast_tx_desccfgerr; /* tx desc cfg error */
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u_int32_t ast_tx_swretries; /* software TX retries */
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u_int32_t ast_tx_swretrymax; /* software TX retry max limit reach */
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u_int32_t ast_tx_data_underrun;
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u_int32_t ast_tx_delim_underrun;
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u_int32_t ast_tx_aggr_failall; /* aggregate TX failed in its entirety */
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u_int32_t ast_tx_getnobuf;
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u_int32_t ast_tx_getbusybuf;
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u_int32_t ast_tx_intr;
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u_int32_t ast_rx_intr;
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u_int32_t ast_tx_aggr_ok; /* aggregate TX ok */
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u_int32_t ast_tx_aggr_fail; /* aggregate TX failed */
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u_int32_t ast_tx_mcastq_overflow; /* multicast queue overflow */
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u_int32_t ast_pad[1];
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};
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#define SIOCGATHSTATS _IOWR('i', 137, struct ifreq)
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#define SIOCZATHSTATS _IOWR('i', 139, struct ifreq)
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struct ath_diag {
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char ad_name[IFNAMSIZ]; /* if name, e.g. "ath0" */
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u_int16_t ad_id;
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#define ATH_DIAG_DYN 0x8000 /* allocate buffer in caller */
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#define ATH_DIAG_IN 0x4000 /* copy in parameters */
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#define ATH_DIAG_OUT 0x0000 /* copy out results (always) */
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#define ATH_DIAG_ID 0x0fff
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u_int16_t ad_in_size; /* pack to fit, yech */
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caddr_t ad_in_data;
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caddr_t ad_out_data;
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u_int ad_out_size;
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};
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#define SIOCGATHDIAG _IOWR('i', 138, struct ath_diag)
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#define SIOCGATHPHYERR _IOWR('i', 140, struct ath_diag)
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/*
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* Radio capture format.
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*/
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#define ATH_RX_RADIOTAP_PRESENT ( \
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(1 << IEEE80211_RADIOTAP_TSFT) | \
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(1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | \
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(1 << IEEE80211_RADIOTAP_XCHANNEL) | \
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0)
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struct ath_rx_radiotap_header {
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struct ieee80211_radiotap_header wr_ihdr;
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u_int64_t wr_tsf;
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u_int8_t wr_flags;
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u_int8_t wr_rate;
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int8_t wr_antsignal;
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int8_t wr_antnoise;
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u_int8_t wr_antenna;
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u_int8_t wr_pad[3];
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u_int32_t wr_chan_flags;
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u_int16_t wr_chan_freq;
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u_int8_t wr_chan_ieee;
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int8_t wr_chan_maxpow;
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} __packed;
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#define ATH_TX_RADIOTAP_PRESENT ( \
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(1 << IEEE80211_RADIOTAP_TSFT) | \
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(1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_DBM_TX_POWER) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA) | \
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(1 << IEEE80211_RADIOTAP_XCHANNEL) | \
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0)
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struct ath_tx_radiotap_header {
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struct ieee80211_radiotap_header wt_ihdr;
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u_int64_t wt_tsf;
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u_int8_t wt_flags;
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u_int8_t wt_rate;
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u_int8_t wt_txpower;
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u_int8_t wt_antenna;
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u_int32_t wt_chan_flags;
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u_int16_t wt_chan_freq;
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u_int8_t wt_chan_ieee;
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int8_t wt_chan_maxpow;
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} __packed;
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/*
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* DFS ioctl commands
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*/
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#define DFS_SET_THRESH 2
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#define DFS_GET_THRESH 3
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#define DFS_RADARDETECTS 6
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/*
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* DFS ioctl parameter types
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*/
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#define DFS_PARAM_FIRPWR 1
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#define DFS_PARAM_RRSSI 2
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#define DFS_PARAM_HEIGHT 3
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#define DFS_PARAM_PRSSI 4
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#define DFS_PARAM_INBAND 5
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#define DFS_PARAM_NOL 6 /* XXX not used in FreeBSD */
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#define DFS_PARAM_RELSTEP_EN 7
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#define DFS_PARAM_RELSTEP 8
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#define DFS_PARAM_RELPWR_EN 9
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#define DFS_PARAM_RELPWR 10
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#define DFS_PARAM_MAXLEN 11
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#define DFS_PARAM_USEFIR128 12
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#define DFS_PARAM_BLOCKRADAR 13
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#define DFS_PARAM_MAXRSSI_EN 14
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/* FreeBSD-specific start at 32 */
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#define DFS_PARAM_ENABLE 32
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#define DFS_PARAM_EN_EXTCH 33
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#endif /* _DEV_ATH_ATHIOCTL_H */
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