Lines Matching +full:256 +full:mb

128  * HAMMER2_SEGSIZE	- Allocation map segment size, typically 4MB
168  * Indirect blocks are typically either 4KB (64 blockrefs / ~4MB represented),
169  * or 64KB (1024 blockrefs / ~64MB represented).
189  * A 4MB segment is reserved at the beginning of each 2GB zone.  This segment
191  * table, and possibly other information in the future.  A 4MB segment for
194  * 4MB = 64 x 64K blocks.  Each 4MB segment is broken down as follows:
198  *  1 freemap00 level1 FREEMAP_LEAF (256 x 128B bitmap data per 1GB)
199  *  2           level2 FREEMAP_NODE (256 x 128B indirect block per 256GB)
200  *  3           level3 FREEMAP_NODE (256 x 128B indirect block per 64TB)
201  *  4           level4 FREEMAP_NODE (256 x 128B indirect block per 16PB)
202  *  5           level5 FREEMAP_NODE (256 x 128B indirect block per 4EB)
260  * Each freemap set is 5 x 64K blocks and represents the 1GB, 256GB, 64TB,
266  * (256 x struct hammer2_bmap_data).  Each structure represents 4MB of storage
293  *	     (i.e. a multiple of 4MB).  VOLUME_ALIGN must be >= ZONE_SEG.
359 #define HAMMER2_ZONEFM_LEVEL2		1	/* 256GB indmap */
369  * Leaf entry represents 4MB of storage broken down into a 512-bit
379 #define HAMMER2_FREEMAP_LEVEL2_RADIX	38	/* 256GB */
381 #define HAMMER2_FREEMAP_LEVEL0_RADIX	22	/* 4MB (128by in l-1 leaf) */
448  * Two linear areas can be reserved after the initial 4MB segment in the base
455 #define HAMMER2_BOOT_MAX_BYTES		(256*1024*1024)
458 #define HAMMER2_REDO_NOM_BYTES		(256*1024*1024)
659  * CONTENT ADDRESSABLE INDEXING (future) - Using a 256 or 512-bit check code.
682 		 *	 HAMMER2_ALLOC_MIN (at least 256, typically 1024).
861  * a LEVEL0 (4MB) block of storage.  The storage is managed in 256 x 16KB
870  *	     only.  May contain values between 0 and 4MB.  Must be ignored
893  *	     64-bit elements, 256x2 bits representing ~4MB worth of media
912 	uint32_t reserved20[8];	/* 20-3F 256 bits manages 128K/1KB/2-bits */
913 				/* 40-7F 512 bits manages 4MB of storage */
929  * The inode is 1024 bytes, made up of 256 bytes of meta-data, 256 bytes
963 #define HAMMER2_INODE_MAXNAME		256	/* maximum name in bytes */
1060 					/* 0100-01FF (256 char, unterminated) */
1087 #define HAMMER2_COPYID_COUNT		256
1159  * chunk size down to 256 bytes and if so we will need bits 8 and 9.
1320 	 * Contains the configuration for up to 256 copyinfo targets.  These