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19 Apr 2003 Shared devices - Greg Smith

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git-svn-id: file:///home/jj/hercules.svn/trunk@1335 956126f8-22a0-4046-8f4a-272fa8102e63
This commit is contained in:
Greg Smith
2003-04-19 07:41:59 +00:00
parent 3a346d1bcd
commit 5a62321ddd
28 changed files with 4629 additions and 762 deletions
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24
cache.h
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@@ -15,6 +15,7 @@
U32 flag;
int len;
void *buf;
int value;
U64 age;
The first 8 bits of the flag indicates if the entry is `busy' or
not. If any of the first 8 bits are non-zero then the entry is
@@ -177,7 +178,8 @@ typedef struct _CACHE { /* Cache entry */
U64 key; /* Key */
U32 flag; /* Flags */
int len; /* Buffer length */
void *buf; /* Buffer address */
void *buf; /* Buffer address */
int value; /* Arbitrary value */
U64 age; /* Age */
} CACHE;
@@ -261,6 +263,8 @@ U64 cache_setage(int ix, int i);
void *cache_getbuf(int ix, int i, int len);
void *cache_setbuf(int ix, int i, void *buf, int len);
int cache_getlen(int ix, int i);
int cache_getval(int ix, int i);
int cache_setval(int ix, int i, int val);
int cache_release(int ix, int i, int flag);
int cache_cmd(char* cmdline, int argc, char *argv[]);
@@ -294,9 +298,11 @@ static void cache_allocbuf(int ix, int i, int len);
#define CCKD_CACHE_USED 0x00800000 /* Entry has been used */
#define CKD_CACHE_ACTIVE 0x80000000 /* Active entry */
#define FBA_CACHE_ACTIVE 0x80000000 /* Active entry */
#define SHRD_CACHE_ACTIVE 0x80000000 /* Active entry */
#define DEVBUF_TYPE_SHARED 0x00000008 /* Shared entry type */
#define DEVBUF_TYPE_COMP 0x00000004 /* CCKD/CFBA entry type */
#define DEVBUF_TYPE_SHARED 0x00000080 /* Shared entry type */
#define DEVBUF_TYPE_COMP 0x00000040 /* CCKD/CFBA entry type */
#define DEVBUF_TYPE_CKD 0x00000002 /* CKD entry type */
#define DEVBUF_TYPE_FBA 0x00000001 /* FBA entry type */
@@ -321,10 +327,18 @@ do { \
#define CKD_CACHE_SETKEY(_devnum, _trk) \
((U64)(((U64)(_devnum) << 32) | (U64)(_trk)))
#define FBA_CACHE_GETKEY(_ix, _devnum, _blkgrp) \
{ \
(_devnum) = (U16)((cache_getkey(CACHE_DEVBUF,(_ix)) >> 32) & 0xFFFF); \
(_blkgrp) = (U32)(cache_getkey(CACHE_DEVBUF,(_ix)) & 0xFFFFFFFF); \
}
#define FBA_CACHE_SETKEY(_devnum, _blkgrp) \
((U64)(((U64)(_devnum) << 32) | (U64)(_blkgrp)))
#define SHRD_CACHE_GETKEY(_ix, _devnum, _trk) \
{ \
(_devnum) = (U16)((cache_getkey(_ix) >> 32) & 0xFFFF); \
(_trk) = (U32)(cache_getkey(_ix) & 0xFFFFFFFF); \
(_devnum) = (U16)((cache_getkey(CACHE_DEVBUF,(_ix)) >> 32) & 0xFFFF); \
(_trk) = (U32)(cache_getkey(CACHE_DEVBUF,(_ix)) & 0xFFFFFFFF); \
}
#define SHRD_CACHE_SETKEY(_devnum, _trk) \
((U64)(((U64)(_devnum) << 32) | (U64)(_trk)))