Date: Wed, 20 Feb 2013 12:14:50 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r247033 - head/sys/dev/ath/ath_hal/ar5416 Message-ID: <201302201214.r1KCEowf064406@svn.freebsd.org>
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Author: adrian Date: Wed Feb 20 12:14:49 2013 New Revision: 247033 URL: http://svnweb.freebsd.org/changeset/base/247033 Log: Configure larger TX FIFO default and maximum level values. This has reduced the number of TX delimiter and data underruns when doing large UDP transfers (>100mbit). This stops any HAL_INT_TXURN interrupts from occuring, which is a good sign! Obtained from: Qualcomm Atheros Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c ============================================================================== --- head/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c Wed Feb 20 12:06:33 2013 (r247032) +++ head/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c Wed Feb 20 12:14:49 2013 (r247033) @@ -241,8 +241,24 @@ ar5416InitState(struct ath_hal_5416 *ahp /* Enable all ANI functions to begin with */ AH5416(ah)->ah_ani_function = 0xffffffff; - /* Set overridable ANI methods */ - AH5212(ah)->ah_aniControl = ar5416AniControl; + /* Set overridable ANI methods */ + AH5212(ah)->ah_aniControl = ar5416AniControl; + + /* Default FIFO Trigger levels */ +#define AR_FTRIG_512B 0x00000080 // 5 bits total + /* AR9285/AR9271 need to use half the TX FIFOs */ + if (AR_SREV_KITE(ah) || AR_SREV_9271(ah)) { + AH5212(ah)->ah_txTrigLev = (AR_FTRIG_256B >> AR_FTRIG_S); + AH5212(ah)->ah_maxTxTrigLev = ((2048 / 64) - 1); + } else { + AH5212(ah)->ah_txTrigLev = (AR_FTRIG_512B >> AR_FTRIG_S); + AH5212(ah)->ah_maxTxTrigLev = ((4096 / 64) - 1); + } + ath_hal_printf(ah, "%s: trigLev=%d, maxTxTrigLev=%d\n", + __func__, + AH5212(ah)->ah_txTrigLev, + AH5212(ah)->ah_maxTxTrigLev); +#undef AR_FTRIG_512B } uint32_t
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