diff options
Diffstat (limited to 'sys/dev/vinum/vinumvar.h')
| -rw-r--r-- | sys/dev/vinum/vinumvar.h | 82 |
1 files changed, 52 insertions, 30 deletions
diff --git a/sys/dev/vinum/vinumvar.h b/sys/dev/vinum/vinumvar.h index df579fa..4709fa5 100644 --- a/sys/dev/vinum/vinumvar.h +++ b/sys/dev/vinum/vinumvar.h @@ -38,7 +38,8 @@ #include <sys/time.h> #include <dev/vinum/vinumstate.h> -/* Some configuration maxima. They're an enum because +/* + * Some configuration maxima. They're an enum because * we can't define global constants. Sorry about that. * * These aren't as bad as they look: most of them are soft limits. @@ -73,8 +74,10 @@ enum constants { VINUM_PLEX_WIDTH = 3, VINUM_SD_WIDTH = 8, - /* Shifts for the second half of raw plex and - * subdisk numbers */ +/* + * Shifts for the second half of raw plex and + * subdisk numbers + */ VINUM_RAWPLEX_SHIFT = 8, /* shift the second half this much */ VINUM_RAWPLEX_WIDTH = 12, /* width of second half */ @@ -118,7 +121,8 @@ enum constants { VINUM_SUPERDEV = VINUMBDEV(0, 0, 0, VINUM_SUPERDEV_TYPE), /* superdevice number */ -/* the number of object entries to cater for initially, and also the +/* + * the number of object entries to cater for initially, and also the * value by which they are incremented. It doesn't take long * to extend them, so theoretically we could start with 1 of each, but * it's untidy to allocate such small areas. These values are @@ -157,22 +161,25 @@ enum constants { */ struct devcode { -/* CARE. These fields assume a big-endian word. On a - * little-endian system, they're the wrong way around */ +/* + * CARE. These fields assume a big-endian word. On a + * little-endian system, they're the wrong way around + */ unsigned volume:8; /* up to 256 volumes */ unsigned major:8; /* this is where the major number fits */ unsigned plex:3; /* up to 8 plexes per volume */ unsigned unused:1; /* up for grabs */ unsigned sd:8; /* up to 256 subdisks per plex */ unsigned type:3; /* type of object */ - /* type field - VINUM_VOLUME = 0, - VINUM_PLEX = 1, - VINUM_SUBDISK = 2, - VINUM_DRIVE = 3, - VINUM_SUPERDEV = 4, - VINUM_RAWPLEX = 5, - VINUM_RAWSD = 6 */ + /* + * type field + VINUM_VOLUME = 0, + VINUM_PLEX = 1, + VINUM_SUBDISK = 2, + VINUM_DRIVE = 3, + VINUM_SUPERDEV = 4, + VINUM_RAWPLEX = 5, + VINUM_RAWSD = 6 */ unsigned signbit:1; /* to make 32 bits */ }; @@ -180,9 +187,11 @@ struct devcode { #define VINUM_RDIR "/dev/rvinum" #define VINUM_SUPERDEV_NAME VINUM_DIR"/control" -/* Flags for all objects. Most of them only apply to +/* + * Flags for all objects. Most of them only apply to * specific objects, but we have space for all in any - * 32 bit flags word. */ + * 32 bit flags word. + */ enum objflags { VF_LOCKED = 1, /* somebody has locked access to this object */ VF_LOCKING = 2, /* we want access to this object */ @@ -240,8 +249,9 @@ struct _vinum_conf { #define VOL vinum_conf.volume #define VFLAGS vinum_conf.flags -/* Slice header - +/* + * Slice header + * * Vinum drives start with this structure: * *\ Sector @@ -271,10 +281,12 @@ enum { DATASTART = (MAXCONFIG * 2 + VINUM_CONFIG_OFFSET) / DEV_BSIZE /* this is where the data starts */ }; -/* hostname is 256 bytes long, but we don't need to shlep +/* + * hostname is 256 bytes long, but we don't need to shlep * multiple copies in vinum. We use the host name just * to identify this system, and 32 bytes should be ample - * for that purpose */ + * for that purpose + */ struct vinum_label { char sysname[VINUMHOSTNAMELEN]; /* system name at time of creation */ @@ -307,9 +319,11 @@ enum drive_label_info { }; /*** Drive definitions ***/ -/* A drive corresponds to a disk slice. We use a different term to show +/* + * A drive corresponds to a disk slice. We use a different term to show * the difference in usage: it doesn't have to be a slice, and could - * theroretically be a complete, unpartitioned disk */ + * theroretically be a complete, unpartitioned disk + */ struct drive { enum drivestate state; /* current state */ @@ -349,10 +363,12 @@ struct sd { int lasterror; /* last error occurred */ /* offsets in blocks */ int64_t driveoffset; /* offset on drive */ - /* plexoffset is the offset from the beginning of the + /* + * plexoffset is the offset from the beginning of the * plex to the very first part of the subdisk, in * sectors. For striped and RAID-5 plexes, only - * the first stripe is located at this offset */ + * the first stripe is located at this offset + */ int64_t plexoffset; /* offset in plex */ u_int64_t sectors; /* and length in sectors */ int plexno; /* index of plex, if it belongs */ @@ -442,9 +458,11 @@ struct volume { struct disklabel label; /* for DIOCGPART */ }; -/* Table expansion. Expand table, which contains oldcount +/* + * Table expansion. Expand table, which contains oldcount * entries of type element, by increment entries, and change - * oldcount accordingly */ + * oldcount accordingly + */ #define EXPAND(table, element, oldcount, increment) \ { \ expand_table ((void **) &table, \ @@ -472,14 +490,16 @@ struct mc { char file[16]; }; -/* These enums are used by the state transition +/* + * These enums are used by the state transition * routines. They're in bit map format: * * Bit 0: Other plexes in the volume are down * Bit 1: Other plexes in the volume are up * Bit 2: The current plex is up * Maybe they should be local to - * state.c */ + * state.c + */ enum volplexstate { volplex_onlyusdown = 0, /* we're the only plex, and we're down */ volplex_alldown, /* 1: another plex is down, and so are we */ @@ -504,10 +524,12 @@ enum sdstates { sd_otherstate = 256 /* found an SD in some other state */ }; -/* This is really just a parameter to pass to +/* + * This is really just a parameter to pass to * set_<foo>_state, but since it needs to be known * in the external definitions, we need to define - * it here */ + * it here + */ enum setstateflags { setstate_none = 0, /* no flags */ setstate_force = 1, /* force the state change */ |
