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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-08-01 09:37:10 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-08-01 09:37:10 +0100 |
| commit | e5ba23a1d98db4e433a5edc85eb3242298cd3275 (patch) | |
| tree | 985a178f2764181d516898f665588926682a402b /extras/mini-os/include | |
| parent | ee449f80fde4a9bd323209f61a734bf88753c752 (diff) | |
| download | xen-e5ba23a1d98db4e433a5edc85eb3242298cd3275.tar.gz xen-e5ba23a1d98db4e433a5edc85eb3242298cd3275.tar.bz2 xen-e5ba23a1d98db4e433a5edc85eb3242298cd3275.zip | |
FSIF: extend protocol to multi-grant requests and multi-page ring
To improve throughput and inline the stat response.
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Diffstat (limited to 'extras/mini-os/include')
| -rw-r--r-- | extras/mini-os/include/fs.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/extras/mini-os/include/fs.h b/extras/mini-os/include/fs.h index d60f0c964b..cd8262e54d 100644 --- a/extras/mini-os/include/fs.h +++ b/extras/mini-os/include/fs.h @@ -5,6 +5,9 @@ #include <mini-os/semaphore.h> #include <mini-os/types.h> +#define FSIF_RING_SIZE_ORDER 1 +#define FSIF_RING_SIZE_PAGES (1<<FSIF_RING_SIZE_ORDER) + struct fs_import { domid_t dom_id; /* dom id of the exporting domain */ @@ -14,7 +17,7 @@ struct fs_import unsigned int nr_entries; /* Number of entries in rings & request array */ struct fsif_front_ring ring; /* frontend ring (contains shared ring) */ - int gnt_ref; /* grant reference to the shared ring */ + u32 gnt_refs[FSIF_RING_SIZE_PAGES]; /* grant references to the shared ring */ evtchn_port_t local_port; /* local event channel port */ char *backend; /* XenBus location of the backend */ struct fs_request *requests; /* Table of requests */ |