/*
* Process an RX descriptor, and return the status to the caller.
* Copy some hardware specific items into the software portion
* of the descriptor.
*
* NB: the caller is responsible for validating the memory contents
* of the descriptor (e.g. flushing any cached copy).
*/
HAL_STATUS
ar5212ProcRxDesc(struct ath_hal *ah, struct ath_desc *ds,
u_int32_t pa, struct ath_desc *nds)
{
struct ar5212_desc *ads = AR5212DESC(ds);
struct ar5212_desc *ands = AR5212DESC(nds);
if ((ads->ds_rxstatus1 & AR_Done) == 0)
return HAL_EINPROGRESS;
/*
* Given the use of a self-linked tail be very sure that the hw is
* done with this descriptor; the hw may have done this descriptor
* once and picked it up again...make sure the hw has moved on.
*/
if ((ands->ds_rxstatus1&AR_Done) == 0 && OS_REG_READ(ah, AR_RXDP) == pa)
return HAL_EINPROGRESS;
ds->ds_rxstat.rs_datalen = ads->ds_rxstatus0 & AR_DataLen;
ds->ds_rxstat.rs_tstamp = MS(ads->ds_rxstatus1, AR_RcvTimestamp);
ds->ds_rxstat.rs_status = 0;
/* XXX what about KeyCacheMiss? */
ds->ds_rxstat.rs_rssi = MS(ads->ds_rxstatus0, AR_RcvSigStrength);
if (ads->ds_rxstatus1 & AR_KeyIdxValid)
ds->ds_rxstat.rs_keyix = MS(ads->ds_rxstatus1, AR_KeyIdx);
else
ds->ds_rxstat.rs_keyix = HAL_RXKEYIX_INVALID;
/* NB: caller expected to do rate table mapping */
ds->ds_rxstat.rs_rate = MS(ads->ds_rxstatus0, AR_RcvRate);
ds->ds_rxstat.rs_antenna = MS(ads->ds_rxstatus0, AR_RcvAntenna);
ds->ds_rxstat.rs_more = (ads->ds_rxstatus0 & AR_More) ? 1 : 0;
if ((ads->ds_rxstatus1 & AR_FrmRcvOK) == 0) {
/*
* These four bits should not be set together. The
* 5212 spec states a Michael error can only occur if
* DecryptCRCErr not set (and TKIP is used). Experience
* indicates however that you can also get Michael errors
* when a CRC error is detected, but these are specious.
* Consequently we filter them out here so we don't
* confuse and/or complicate drivers.
*/
if (ads->ds_rxstatus1 & AR_CRCErr)
ds->ds_rxstat.rs_status |= HAL_RXERR_CRC;
else if (ads->ds_rxstatus1 & AR_PHYErr) {
u_int phyerr;
ds->ds_rxstat.rs_status |= HAL_RXERR_PHY;
phyerr = MS(ads->ds_rxstatus1, AR_PHYErrCode);
ds->ds_rxstat.rs_phyerr = phyerr;
if ((!AH5212(ah)->ah_hasHwPhyCounters) &&
(phyerr != HAL_PHYERR_RADAR))
ar5212AniPhyErrReport(ah, &ds->ds_rxstat);
} else if (ads->ds_rxstatus1 & AR_DecryptCRCErr)
ds->ds_rxstat.rs_status |= HAL_RXERR_DECRYPT;
else if (ads->ds_rxstatus1 & AR_MichaelErr)
ds->ds_rxstat.rs_status |= HAL_RXERR_MIC;
}
return HAL_OK;
}
/*
* Initialize RX descriptor, by clearing the status and setting
* the size (and any other flags).
*/
HAL_BOOL
ar5212SetupRxDesc(struct ath_hal *ah, struct ath_desc *ds,
u_int32_t size, u_int flags)
{
struct ar5212_desc *ads = AR5212DESC(ds);
HALASSERT((size &~ AR_BufLen) == 0);
ads->ds_ctl0 = 0;
ads->ds_ctl1 = size & AR_BufLen;
if (flags & HAL_RXDESC_INTREQ)
ads->ds_ctl1 |= AR_RxInterReq;
ads->ds_rxstatus0 = ads->ds_rxstatus1 = 0;
return AH_TRUE;
}
/*
* Process an RX descriptor, and return the status to the caller.
* Copy some hardware specific items into the software portion
* of the descriptor.
*
* NB: the caller is responsible for validating the memory contents
* of the descriptor (e.g. flushing any cached copy).
*/
HAL_STATUS
ar5212ProcRxDesc(struct ath_hal *ah, struct ath_desc *ds,
uint32_t pa, struct ath_desc *nds, uint64_t tsf,
struct ath_rx_status *rs)
{
struct ar5212_desc *ads = AR5212DESC(ds);
struct ar5212_desc *ands = AR5212DESC(nds);
if ((ads->ds_rxstatus1 & AR_Done) == 0)
return HAL_EINPROGRESS;
/*
* Given the use of a self-linked tail be very sure that the hw is
* done with this descriptor; the hw may have done this descriptor
* once and picked it up again...make sure the hw has moved on.
*/
if ((ands->ds_rxstatus1&AR_Done) == 0 && OS_REG_READ(ah, AR_RXDP) == pa)
return HAL_EINPROGRESS;
rs->rs_datalen = ads->ds_rxstatus0 & AR_DataLen;
rs->rs_tstamp = MS(ads->ds_rxstatus1, AR_RcvTimestamp);
rs->rs_status = 0;
/* XXX what about KeyCacheMiss? */
rs->rs_rssi = MS(ads->ds_rxstatus0, AR_RcvSigStrength);
/* discard invalid h/w rssi data */
if (rs->rs_rssi == -128)
rs->rs_rssi = 0;
if (ads->ds_rxstatus1 & AR_KeyIdxValid)
rs->rs_keyix = MS(ads->ds_rxstatus1, AR_KeyIdx);
else
rs->rs_keyix = HAL_RXKEYIX_INVALID;
/* NB: caller expected to do rate table mapping */
rs->rs_rate = MS(ads->ds_rxstatus0, AR_RcvRate);
rs->rs_antenna = MS(ads->ds_rxstatus0, AR_RcvAntenna);
rs->rs_more = (ads->ds_rxstatus0 & AR_More) ? 1 : 0;
/*
* The AR5413 (at least) sometimes sets both AR_CRCErr and
* AR_PHYErr when reporting radar pulses. In this instance
* set HAL_RXERR_PHY as well as HAL_RXERR_CRC and
* let the driver layer figure out what to do.
*
* See PR kern/169362.
*/
if ((ads->ds_rxstatus1 & AR_FrmRcvOK) == 0) {
/*
* These four bits should not be set together. The
* 5212 spec states a Michael error can only occur if
* DecryptCRCErr not set (and TKIP is used). Experience
* indicates however that you can also get Michael errors
* when a CRC error is detected, but these are specious.
* Consequently we filter them out here so we don't
* confuse and/or complicate drivers.
*/
if (ads->ds_rxstatus1 & AR_PHYErr) {
u_int phyerr;
rs->rs_status |= HAL_RXERR_PHY;
phyerr = MS(ads->ds_rxstatus1, AR_PHYErrCode);
rs->rs_phyerr = phyerr;
if (!AH5212(ah)->ah_hasHwPhyCounters &&
phyerr != HAL_PHYERR_RADAR)
ar5212AniPhyErrReport(ah, rs);
}
if (ads->ds_rxstatus1 & AR_CRCErr)
rs->rs_status |= HAL_RXERR_CRC;
else if (ads->ds_rxstatus1 & AR_DecryptCRCErr)
rs->rs_status |= HAL_RXERR_DECRYPT;
else if (ads->ds_rxstatus1 & AR_MichaelErr)
rs->rs_status |= HAL_RXERR_MIC;
}
return HAL_OK;
}
void
ath_rate_tx_complete(struct ath_softc *sc, struct ath_node *an,
struct ath_desc *ds, struct ath_rc_series rcs[],
u_int8_t ac, int nframes, int nbad, int rts_retry_limit)
#endif
{
struct atheros_node *atn = an->an_rc_node;
struct atheros_vap *avap = atn->avp;
const RATE_TABLE *pRateTable = avap->rateTable;
u_int8_t txRateCode = ds->ds_txstat.ts_ratecode;
u_int8_t totalTries = 0;
#if 0
int short_retry_fail = ds->ds_txstat.ts_shortretry ;
#endif
if (sc->sc_ah->ah_magic == 0x19641014 ||
sc->sc_ah->ah_magic == 0x19741014)
{
#ifdef ATH_SUPPORT_VOWEXT
ath_rate_tx_complete_11n(sc, an, &ds->ds_txstat, rcs, ac, nframes, nbad, nHeadFail, nTailFail, rts_retry_limit);
#else
ath_rate_tx_complete_11n(sc, an, &ds->ds_txstat, rcs, ac, nframes, nbad, rts_retry_limit);
#endif
return;
}
if (pRateTable->rateCodeToIndex[txRateCode] == (u_int8_t) -1) {
/*
* This can happen, for example, when switching bands
* and pending tx's are processed before the queue
* is flushed (should fix mode switch to ensure this
* does not happen).
*/
// DPRINTF(sc, "%s: no mapping for rate code 0x%x",
// __func__, txRate);
return;
}
#ifdef AH_SUPPORT_AR5212
if (ds->ds_txstat.ts_rateindex != 0) {
const struct ar5212_desc *ads = AR5212DESC(ds);
int finalTSIdx = MS(ads->ds_txstatus1, AR_FinalTSIndex);
int series;
/*
* Process intermediate rates that failed.
*/
for (series = 0; series < finalTSIdx; series++) {
int rate, tries;
/* NB: we know series <= 2 */
switch (series) {
case 0:
rate = MS(ads->ds_ctl3, AR_XmitRate0);
tries = MS(ads->ds_ctl2, AR_XmitDataTries0);
break;
case 1:
rate = MS(ads->ds_ctl3, AR_XmitRate1);
tries = MS(ads->ds_ctl2, AR_XmitDataTries1);
break;
default:
rate = MS(ads->ds_ctl3, AR_XmitRate2);
tries = MS(ads->ds_ctl2, AR_XmitDataTries2);
break;
}
if (pRateTable->rateCodeToIndex[rate] != (u_int8_t) -1) {
/*
* This can happen, for example, when switching bands
* and pending tx's are processed before the queue
* is flushed (should fix mode switch to ensure this
* does not happen).
*/
// DPRINTF(sc, "%s: no mapping for rate code 0x%x",
// __func__, txRate);
rcUpdate(atn
, 2 // Huh? Indicates an intermediate rate failure. Should use a macro instead.
, pRateTable->rateCodeToIndex[rate]
, tries
, ds->ds_txstat.ts_rssi
, ds->ds_txstat.ts_antenna
, pRateTable
, sc->sc_opmode
, sc->sc_diversity
, sc->sc_setdefantenna
, (void *)sc
, 0
);
}
/* Account for retries on intermediate rates */
totalTries += tries;
}
}
#endif
/*
* Exclude intermediate rate retries, or the last rate, which may have
* succeeded, will incur a penalty higher than the intermediate rates that
* failed.
*/
rcUpdate(atn
, (ds->ds_txstat.ts_status & HAL_TXERR_XRETRY) != 0
, pRateTable->rateCodeToIndex[txRateCode]
, ds->ds_txstat.ts_longretry - totalTries
, ds->ds_txstat.ts_rssi
, ds->ds_txstat.ts_antenna
, pRateTable
, sc->sc_opmode
, sc->sc_diversity
, sc->sc_setdefantenna
, (void *)sc
, 0
);
#if 0
if (short_retry_fail == rts_retry_limit) {
atn->txRateCtrl.consecRtsFailCount++;
} else {
atn->txRateCtrl.consecRtsFailCount = 0;
}
#else
atn->txRateCtrl.consecRtsFailCount = 0;
#endif
}
