2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
13 #include "../afs/param.h"
14 #include "../h/types.h"
15 #include "../h/param.h"
17 #ifdef AFS_LINUX20_ENV
18 #ifndef _LINUX_CODA_FS_I
19 #define _LINUX_CODA_FS_I
21 struct coda_inode_info {};
28 /* this is just a dummy type decl, we're really using struct sockets here */
34 afs_int32 size; /* file size in bytes */
35 afs_int32 blksize; /* optimal transfer size in bytes */
36 afs_int32 mtime; /* modification date */
37 afs_int32 atime; /* access time */
41 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
42 #ifdef AFS_LINUX22_ENV
43 struct dentry dentry; /* merely to hold the pointer to the inode. */
44 struct file file; /* May need this if we really open the file. */
48 #if defined(AFS_HPUX102_ENV)
53 int (*proc)(); /* proc, which, if not null, is called on writes */
54 char *rock; /* rock passed to proc */
55 ino_t inum; /* guarantee validity of hint */
57 int fd; /* file descriptor for user space files */
58 #endif /* defined(UKERNEL) */
65 struct afs_osi_WaitHandle {
66 caddr_t proc; /* process waiting */
69 #define osi_SetFileProc(x,p) ((x)->proc=(p))
70 #define osi_SetFileRock(x,r) ((x)->rock=(r))
71 #define osi_GetFileProc(x) ((x)->proc)
72 #define osi_GetFileRock(x) ((x)->rock)
75 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
76 osi_FlushText_really(vp)
78 #define osi_FlushText(vp)
82 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
83 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
84 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
87 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
88 extern struct osi_socket *osi_NewSocket();
94 extern void *afs_osi_Alloc(size_t size);
95 extern void afs_osi_Free(void *x, size_t size);
96 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
98 extern void *osi_AllocSmallSpace(size_t size);
99 extern void osi_FreeSmallSpace(void *x);
100 extern void *osi_AllocMediumSpace(size_t size);
101 extern void osi_FreeMediumSpace(void *x);
102 extern void *osi_AllocLargeSpace(size_t size);
103 extern void osi_FreeLargeSpace(void *x);
106 * Vnode related macros
108 extern struct vnodeops *afs_ops;
109 #define vType(vc) (vc)->v.v_type
110 #define vSetType(vc,type) (vc)->v.v_type = (type)
111 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
112 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
113 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
116 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
117 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp),\
120 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
121 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp))
125 * In IRIX 6.5 we cannot have DEBUG turned on since certain
126 * system-defined structures are a different size with DEBUG on, the
127 * kernel is compiled without DEBUG on, and the resulting differences
128 * would break our ability to interact with the rest of the kernel.
130 * Is DEBUG only for turning the ASSERT() macro? If so, we should
131 * be able to eliminate DEBUG entirely.
133 #if !defined(AFS_SGI65_ENV)
135 #define DEBUG 1 /* Default is to enable debugging/logging */
140 * Time related macros
142 #define osi_GetuTime(x) osi_GetTime(x)
144 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
145 /** In 64 bit Solaris the timeval structure has members that are 64 bit
146 * In the GetTime() interface we expect pointers to afs_int32. So the need to
147 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
148 * we now use 32 bit quantities consistently all over the code.
149 * In 64 bit HP-UX the timeval structure has a 64 bit member.
153 #if defined(AFS_HPUX_ENV) || defined(AFS_SUN57_ENV) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
159 typedef struct timeval osi_timeval_t;
160 #endif /* AFS_SGI61_ENV */
163 * The following three routines provide the fid routines used by the buffer
164 * and directory packages.
166 #define dirp_Zap(afid) (*(afid) = -1)
167 #define dirp_Eq(afid, bfid) (*(afid) == *(bfid))
168 #define dirp_Cpy(dfid,sfid) (*(dfid) = *(sfid))
172 * osi_ThreadUnique() should yield a value that can be found in ps
173 * output in order to draw correspondences between ICL traces and what
174 * is going on in the system. So if ps cannot show thread IDs it is
175 * likely to be the process ID instead.
177 #define osi_ThreadUnique() getpid()
181 #ifdef AFS_GLOBAL_SUNLOCK
182 #define AFS_ASSERT_GLOCK() \
183 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held"), 0))
184 #define AFS_ASSERT_RXGLOCK() \
185 (ISAFS_RXGLOCK() || (osi_Panic("rx global lock not held"), 0))
186 #endif /* AFS_GLOBAL_SUNLOCK */
192 #define AFS_GUNLOCK()
193 #define ISAFS_GLOCK() 1
194 #define AFS_ASSERT_GLOCK()
195 #define AFS_RXGLOCK()
196 #define AFS_RXGUNLOCK()
197 #define ISAFS_RXGLOCK() 1
198 #define AFS_ASSERT_RXGLOCK()
201 /* On an MP that uses multithreading, splnet is not sufficient to provide
202 * mutual exclusion because the other processors will not see it. On some
203 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
204 * mutex, which this works in the UP expected way, it means that the whole MP
205 * can only take one interrupt at a time; a serious performance penalty. */
207 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
214 * vnode/vcache ref count manipulation
217 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
218 #else /* defined(UKERNEL) */
219 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
220 #endif /* defined(UKERNEL) */
222 * For some reason we do bare refcount manipulation in some places, for some
223 * platforms. The assumption is apparently that either we wouldn't call
224 * afs_inactive anyway (because we know the ref count is high), or that it's
225 * OK not to call it (because we don't expect CUnlinked or CDirty).
226 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
227 * macro for V-file vnodes.)
229 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
230 #define AFS_FAST_RELE(vp) AFS_RELE(&(vp)->v)
233 * MP safe versions of routines to copy memory between user space
234 * and kernel space. Call these to avoid taking page faults while
235 * holding the global lock.
237 #ifdef AFS_GLOBAL_SUNLOCK
239 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
241 int haveGlock = ISAFS_GLOCK(); \
244 CODE = copyin((SRC),(DST),(LEN)); \
249 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
251 int haveGlock = ISAFS_GLOCK(); \
254 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
259 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
261 int haveGlock = ISAFS_GLOCK(); \
264 CODE = copyout((SRC),(DST),(LEN)); \
270 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
272 int haveGlock = ISAFS_GLOCK(); \
275 (UIO)->uio_rw = (RW); \
276 CODE = uiomove((SRC),(LEN),(UIO)); \
280 #else /* AFS_OSF_ENV */
281 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
283 int haveGlock = ISAFS_GLOCK(); \
286 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
290 #endif /* AFS_OSF_ENV */
292 #else /* AFS_GLOBAL_SUNLOCK */
294 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
296 CODE = copyin((SRC),(DST),(LEN)); \
299 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
301 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
304 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
306 CODE = copyout((SRC),(DST),(LEN)); \
310 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
312 (UIO)->uio_rw = (RW); \
313 CODE = uiomove((SRC),(LEN),(UIO)); \
315 #else /* AFS_OSF_ENV */
316 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
318 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
320 #endif /* AFS_OSF_ENV */
322 #endif /* AFS_GLOBAL_SUNLOCK */
325 * encapsulation of kernel data structure accesses
327 #define setuerror(erval) u.u_error = (erval)
328 #define getuerror() u.u_error
330 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
331 * These are required for IRIX 6.4 and later, which pass behavior pointers.
332 * Note that the _CONVERT routines get the ";" here so that argument lists
333 * can have arguments after the OSI_x_CONVERT macro is called.
335 #define OSI_VN_ARG(V) V
336 #define OSI_VN_DECL(V) struct vnode *V
337 #define OSI_VN_CONVERT(V)
338 #define OSI_VC_ARG(V) V
339 #define OSI_VC_DECL(V) struct vcache *V
340 #define OSI_VC_CONVERT(V)
341 #define OSI_VFS_ARG(V) V
342 #define OSI_VFS_DECL(V) struct vfs *V
343 #define OSI_VFS_CONVERT(V)
347 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
349 #define AfsLargeFileUio(uio) 0
350 #define AfsLargeFileSize(pos, off) 0
353 /* VM function prototypes.
355 #if defined(AFS_SUN5_ENV)
356 extern int osi_VM_GetDownD();
357 extern void osi_VM_PreTruncate();
359 #if defined(AFS_SGI_ENV)
360 extern void osi_VM_FSyncInval();
362 extern int osi_VM_FlushVCache();
363 extern void osi_VM_StoreAllSegments();
364 extern void osi_VM_TryToSmush();
365 extern void osi_VM_FlushPages();
366 extern void osi_VM_Truncate();
368 extern void osi_ReleaseVM();
370 /* Now include system specific OSI header file. It will redefine macros
371 * defined here as required by the OS.
373 #include "../afs/osi_machdep.h"
375 /* Declare any structures which use these macros after the OSI implementation
376 * has had the opportunity to redefine them.
378 extern struct AFS_UCRED afs_osi_cred;
380 #endif /* _AFS_OSI_ */