From a70adf9c6672b8d4e4b5b49138865378e99b6970 Mon Sep 17 00:00:00 2001 From: rusty Date: Mon, 14 Oct 2013 09:57:34 +0000 Subject: 2.5.2.3: document topology fields From: Paolo Bonzini This completes the changes from yesterday. Signed-off-by: Paolo Bonzini Approved at 2013-10-08 meeting: https://lists.oasis-open.org/archives/virtio/201310/msg00087.html See:https://lists.oasis-open.org/archives/virtio-comment/201308/msg00030.html Signed-off-by: Rusty Russell git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@63 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652 --- virtio-v1.0-wd01-part1-specification.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virtio-v1.0-wd01-part1-specification.txt b/virtio-v1.0-wd01-part1-specification.txt index e8fbe69..ea63531 100644 --- a/virtio-v1.0-wd01-part1-specification.txt +++ b/virtio-v1.0-wd01-part1-specification.txt @@ -2251,9 +2251,13 @@ bits as indicated above. } geometry; u32 blk_size; struct virtio_blk_topology { + // # of logical blocks per physical block (log2) u8 physical_block_exp; + // offset of first aligned logical block u8 alignment_offset; + // suggested minimum I/O size in blocks u16 min_io_size; + // optimal (suggested maximum) I/O size in blocks u32 opt_io_size; } topology; u8 reserved; -- cgit v1.2.3