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| /freebsd/sys/dev/xen/blkfront/ |
| H A D | blkfront.c | diff a4660d594f0f1d4687fd71750af95bd7b61c679e Mon Dec 28 19:59:13 CET 2009 Justin T. Gibbs <gibbs@FreeBSD.org> Correct alignment and boundary constraints in blkfront's bus dma tag. The
blkif interface in Xen requires all I/O to be 512 byte aligned with each
segment bounded by a 4k page.
Note: This submission only documents the proper contraints for blkif I/O.
The alignment code in busdma does not yet handle alignment constraints
correctly in all cases.
diff a4660d594f0f1d4687fd71750af95bd7b61c679e Mon Dec 28 19:59:13 CET 2009 Justin T. Gibbs <gibbs@FreeBSD.org> Correct alignment and boundary constraints in blkfront's bus dma tag. The
blkif interface in Xen requires all I/O to be 512 byte aligned with each
segment bounded by a 4k page.
Note: This submission only documents the proper contraints for blkif I/O.
The alignment code in busdma does not yet handle alignment constraints
correctly in all cases.
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