Date: Sun, 6 Apr 2008 14:42:17 GMT From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 139455 for review Message-ID: <200804061442.m36EgHsD079485@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=139455 Change 139455 by gonzo@gonzo_jeeves on 2008/04/06 14:41:17 o ACK TX interrupt by writing to Status register of DMA channel 1 (tx) o sync TX descriptors after all operations has been performed on them o We should care only about F and E interrupts for TX descriptor. Affected files ... .. //depot/projects/mips2-jnpr/src/sys/mips/mips32/idt/if_kr.c#3 edit Differences ... ==== //depot/projects/mips2-jnpr/src/sys/mips/mips32/idt/if_kr.c#3 (text+ko) ==== @@ -1425,6 +1425,9 @@ } sc->kr_cdata.kr_tx_cons = cons; + + bus_dmamap_sync(sc->kr_cdata.kr_tx_ring_tag, + sc->kr_cdata.kr_tx_ring_map, BUS_DMASYNC_PREWRITE); } @@ -1574,9 +1577,11 @@ device_printf(sc->kr_dev, "DMA error\n"); } - /* Enable F, H, E interrupts */ + KR_DMA_WRITE_REG(KR_DMA_TXCHAN, DMA_S, ~status); + + /* Enable F, E interrupts */ KR_DMA_CLEARBITS_REG(KR_DMA_TXCHAN, DMA_SM, - DMA_SM_D | DMA_SM_H | DMA_SM_E); + DMA_SM_F | DMA_SM_E); KR_UNLOCK(sc);
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