Date: Wed, 22 Mar 2000 11:14:47 -0700 (MST) From: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> To: G?rard Roudier <groudier@club-internet.fr> Cc: scsi@FreeBSD.org Subject: Re: bus_dmamap_load() and boundaries Message-ID: <200003221814.LAA09815@narnia.plutotech.com> In-Reply-To: <Pine.LNX.4.10.10003210050130.284-100000@linux.local>
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In article <Pine.LNX.4.10.10003210050130.284-100000@linux.local> you wrote: > > Hello, > > Due to errata, some SYMBIOS chip revisions require scatter entries not to > cross 16 MB boundaries. I can tell bus_dma_tag_create() about a > `boundary', but this parameter does not seem to apply to bus physical > scattered chunks returned by bus_dmamap_load(). This parameter seem to > only apply to memory allocated using bus_dmamem_alloc(). > > Is this the expected behaviour or am I missing something? Boundary support in bus_dmamap_load() just hasn't been implemented yet. It shouldn't be too hard to add. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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