Date: Sat, 7 Aug 2010 23:33:06 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r211047 - head/sys/dev/alc Message-ID: <201008072333.o77NX6Rq089959@svn.freebsd.org>
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Author: yongari Date: Sat Aug 7 23:33:06 2010 New Revision: 211047 URL: http://svn.freebsd.org/changeset/base/211047 Log: Controller does not seem to support more than 1024 bytes DMA burst. Limit DMA burst size to be less than or equal to 1024 bytes. Modified: head/sys/dev/alc/if_alc.c Modified: head/sys/dev/alc/if_alc.c ============================================================================== --- head/sys/dev/alc/if_alc.c Sat Aug 7 23:16:21 2010 (r211046) +++ head/sys/dev/alc/if_alc.c Sat Aug 7 23:33:06 2010 (r211047) @@ -610,6 +610,10 @@ alc_attach(device_t dev) device_printf(dev, "TLP payload size : %u bytes.\n", alc_dma_burst[sc->alc_dma_wr_burst]); } + if (alc_dma_burst[sc->alc_dma_rd_burst] > 1024) + sc->alc_dma_rd_burst = 3; + if (alc_dma_burst[sc->alc_dma_wr_burst] > 1024) + sc->alc_dma_wr_burst = 3; /* Clear data link and flow-control protocol error. */ val = CSR_READ_4(sc, ALC_PEX_UNC_ERR_SEV); val &= ~(PEX_UNC_ERR_SEV_DLP | PEX_UNC_ERR_SEV_FCP);
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