Date: Sat, 7 Apr 2012 02:51:53 +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: r233967 - head/sys/dev/ath Message-ID: <201204070251.q372prsQ038011@svn.freebsd.org>
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Author: adrian Date: Sat Apr 7 02:51:53 2012 New Revision: 233967 URL: http://svn.freebsd.org/changeset/base/233967 Log: Store away the RTS aggregate limit from the HAL. This will be used by some upcoming code to ensure that aggregates are enforced to be a certain size. The AR5416 has a limitation on RTS protected aggregates (8KiB). Modified: head/sys/dev/ath/if_ath.c head/sys/dev/ath/if_athvar.h Modified: head/sys/dev/ath/if_ath.c ============================================================================== --- head/sys/dev/ath/if_ath.c Sat Apr 7 02:01:26 2012 (r233966) +++ head/sys/dev/ath/if_ath.c Sat Apr 7 02:51:53 2012 (r233967) @@ -732,6 +732,13 @@ ath_attach(u_int16_t devid, struct ath_s ic->ic_txstream = txs; ic->ic_rxstream = rxs; + (void) ath_hal_getcapability(ah, HAL_CAP_RTS_AGGR_LIMIT, 1, + &sc->sc_rts_aggr_limit); + if (sc->sc_rts_aggr_limit != (64 * 1024)) + device_printf(sc->sc_dev, + "[HT] RTS aggregates limited to %d KiB\n", + sc->sc_rts_aggr_limit / 1024); + device_printf(sc->sc_dev, "[HT] %d RX streams; %d TX streams\n", rxs, txs); } Modified: head/sys/dev/ath/if_athvar.h ============================================================================== --- head/sys/dev/ath/if_athvar.h Sat Apr 7 02:01:26 2012 (r233966) +++ head/sys/dev/ath/if_athvar.h Sat Apr 7 02:51:53 2012 (r233967) @@ -533,6 +533,7 @@ struct ath_softc { uint16_t *sc_eepromdata; /* Local eeprom data, if AR9100 */ int sc_txchainmask; /* currently configured TX chainmask */ int sc_rxchainmask; /* currently configured RX chainmask */ + int sc_rts_aggr_limit; /* TX limit on RTS aggregates */ /* Queue limits */
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