X-Git-Url: http://vcs.maemo.org/git/?a=blobdiff_plain;f=block_int.h;h=0820ed1d5c2b4289d7b74f105885dc6d9b0e55a6;hb=72b675caacfc6f2fde17e6b51a668c0d5409a8f7;hp=b45bde04d4314e8465d61a0e16c482c5af7747d9;hpb=221f715d90ec5fec569a19119887445c037bca86;p=qemu

diff --git a/block_int.h b/block_int.h
index b45bde0..0820ed1 100644
--- a/block_int.h
+++ b/block_int.h
@@ -25,11 +25,19 @@
 #define BLOCK_INT_H
 
 #include "block.h"
+#include "qemu-option.h"
 
 #define BLOCK_FLAG_ENCRYPT	1
 #define BLOCK_FLAG_COMPRESS	2
 #define BLOCK_FLAG_COMPAT6	4
 
+#define BLOCK_OPT_SIZE          "size"
+#define BLOCK_OPT_ENCRYPT       "encryption"
+#define BLOCK_OPT_COMPAT6       "compat6"
+#define BLOCK_OPT_BACKING_FILE  "backing_file"
+#define BLOCK_OPT_BACKING_FMT   "backing_fmt"
+#define BLOCK_OPT_CLUSTER_SIZE  "cluster_size"
+
 typedef struct AIOPool {
     void (*cancel)(BlockDriverAIOCB *acb);
     int aiocb_size;
@@ -46,19 +54,18 @@ struct BlockDriver {
     int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num,
                       const uint8_t *buf, int nb_sectors);
     void (*bdrv_close)(BlockDriverState *bs);
-    int (*bdrv_create)(const char *filename, int64_t total_sectors,
-                       const char *backing_file, int flags);
+    int (*bdrv_create)(const char *filename, QEMUOptionParameter *options);
     void (*bdrv_flush)(BlockDriverState *bs);
     int (*bdrv_is_allocated)(BlockDriverState *bs, int64_t sector_num,
                              int nb_sectors, int *pnum);
     int (*bdrv_set_key)(BlockDriverState *bs, const char *key);
     int (*bdrv_make_empty)(BlockDriverState *bs);
     /* aio */
-    BlockDriverAIOCB *(*bdrv_aio_read)(BlockDriverState *bs,
-        int64_t sector_num, uint8_t *buf, int nb_sectors,
+    BlockDriverAIOCB *(*bdrv_aio_readv)(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
         BlockDriverCompletionFunc *cb, void *opaque);
-    BlockDriverAIOCB *(*bdrv_aio_write)(BlockDriverState *bs,
-        int64_t sector_num, const uint8_t *buf, int nb_sectors,
+    BlockDriverAIOCB *(*bdrv_aio_writev)(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
         BlockDriverCompletionFunc *cb, void *opaque);
     void (*bdrv_aio_cancel)(BlockDriverAIOCB *acb);
     int aiocb_size;
@@ -78,6 +85,11 @@ struct BlockDriver {
                               QEMUSnapshotInfo **psn_info);
     int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);
 
+    int (*bdrv_put_buffer)(BlockDriverState *bs, const uint8_t *buf,
+                           int64_t pos, int size);
+    int (*bdrv_get_buffer)(BlockDriverState *bs, uint8_t *buf,
+                           int64_t pos, int size);
+
     /* removable device specific */
     int (*bdrv_is_inserted)(BlockDriverState *bs);
     int (*bdrv_media_changed)(BlockDriverState *bs);
@@ -91,6 +103,14 @@ struct BlockDriver {
         BlockDriverCompletionFunc *cb, void *opaque);
 
     AIOPool aio_pool;
+
+    /* List of options for creating images, terminated by name == NULL */
+    QEMUOptionParameter *create_options;
+
+
+    /* Returns number of errors in image, -errno for internal errors */
+    int (*bdrv_check)(BlockDriverState* bs);
+
     struct BlockDriver *next;
 };
 
@@ -113,6 +133,7 @@ struct BlockDriverState {
     char filename[1024];
     char backing_file[1024]; /* if non zero, the image is a diff of
                                 this file image */
+    char backing_format[16]; /* if non-zero and backing_file exists */
     int is_temporary;
     int media_changed;
 
@@ -130,6 +151,9 @@ struct BlockDriverState {
     /* Whether the disk can expand beyond total_sectors */
     int growable;
 
+    /* the memory alignment required for the buffers handled by this driver */
+    int buffer_alignment;
+
     /* NOTE: the following infos are only hints for real hardware
        drivers. They are not used by the block driver */
     int cyls, heads, secs, translation;
@@ -158,6 +182,8 @@ void *qemu_aio_get_pool(AIOPool *pool, BlockDriverState *bs,
                         BlockDriverCompletionFunc *cb, void *opaque);
 void qemu_aio_release(void *p);
 
+void *qemu_blockalign(BlockDriverState *bs, size_t size);
+
 extern BlockDriverState *bdrv_first;
 
 #endif /* BLOCK_INT_H */