LU-4975 ofd: documenting ofd_dev.c

[fs/lustre-release.git] / lustre / include / lustre_cfg.h

diff --git a/lustre/include/lustre_cfg.h b/lustre/include/lustre_cfg.h
index 7262be3..29292df 100644 (file)
--- a/lustre/include/lustre_cfg.h
+++ b/lustre/include/lustre_cfg.h
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2013, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -84,6 +86,27 @@ enum lcfg_command_type {
         LCFG_POOL_REM           = 0x00ce022, /**< remove an ost from a pool */
         LCFG_POOL_DEL           = 0x00ce023, /**< destroy an ost pool name */
         LCFG_SET_LDLM_TIMEOUT   = 0x00ce030, /**< set ldlm_timeout */
+       LCFG_PRE_CLEANUP        = 0x00cf031, /**< call type-specific pre
+                                             * cleanup cleanup */
+       LCFG_SET_PARAM          = 0x00ce032, /**< use set_param syntax to set
+                                             *a proc parameters */
+       LCFG_NODEMAP_ADD        = 0x00ce040, /**< create a cluster */
+       LCFG_NODEMAP_DEL        = 0x00ce041, /**< destroy a cluster */
+       LCFG_NODEMAP_ADD_RANGE  = 0x00ce042, /**< add a nid range */
+       LCFG_NODEMAP_DEL_RANGE  = 0x00ce043, /**< delete an nid range */
+       LCFG_NODEMAP_ADD_UIDMAP = 0x00ce044, /**< add a uidmap */
+       LCFG_NODEMAP_DEL_UIDMAP = 0x00ce045, /**< delete a uidmap */
+       LCFG_NODEMAP_ADD_GIDMAP = 0x00ce046, /**< add a gidmap */
+       LCFG_NODEMAP_DEL_GIDMAP = 0x00ce047, /**< delete a gidmap */
+       LCFG_NODEMAP_ACTIVATE   = 0x00ce048, /**< activate cluster id mapping */
+       LCFG_NODEMAP_ADMIN      = 0x00ce049, /**< allow cluster to use id 0 */
+       LCFG_NODEMAP_TRUSTED    = 0x00ce050, /**< trust a clusters ids */
+       LCFG_NODEMAP_SQUASH_UID = 0x00ce051, /**< default map uid */
+       LCFG_NODEMAP_SQUASH_GID = 0x00ce052, /**< default map gid */
+       LCFG_NODEMAP_ADD_SHKEY  = 0x00ce053, /**< add shared key to cluster */
+       LCFG_NODEMAP_DEL_SHKEY  = 0x00ce054, /**< delete shared key from cluster */
+       LCFG_NODEMAP_TEST_NID   = 0x00ce055, /**< test for nodemap membership */
+       LCFG_NODEMAP_TEST_ID    = 0x00ce056, /**< test uid/gid mapping */
 };
 
 struct lustre_cfg_bufs {
@@ -146,13 +169,12 @@ static inline void lustre_cfg_bufs_reset(struct lustre_cfg_bufs *bufs, char *nam
                 lustre_cfg_bufs_set_string(bufs, 0, name);
 }
 
-static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, int index)
+static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, __u32 index)
 {
-        int i;
-        int offset;
-        int bufcount;
-        LASSERT (lcfg != NULL);
-        LASSERT (index >= 0);
+       __u32 i;
+       size_t offset;
+       __u32 bufcount;
+       LASSERT (lcfg != NULL);
 
         bufcount = lcfg->lcfg_bufcount;
         if (index >= bufcount)
@@ -167,7 +189,7 @@ static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, int index)
 static inline void lustre_cfg_bufs_init(struct lustre_cfg_bufs *bufs,
                                         struct lustre_cfg *lcfg)
 {
-        int i;
+       __u32 i;
         bufs->lcfg_bufcount = lcfg->lcfg_bufcount;
         for (i = 0; i < bufs->lcfg_bufcount; i++) {
                 bufs->lcfg_buflen[i] = lcfg->lcfg_buflens[i];
@@ -175,7 +197,7 @@ static inline void lustre_cfg_bufs_init(struct lustre_cfg_bufs *bufs,
         }
 }
 
-static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, int index)
+static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, __u32 index)
 {
        char *s;
 
@@ -191,7 +213,7 @@ static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, int index)
         * of data.  Try to use the padding first though.
         */
        if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
-               int last = min((int)lcfg->lcfg_buflens[index],
+               size_t last = min((size_t)lcfg->lcfg_buflens[index],
                               cfs_size_round(lcfg->lcfg_buflens[index]) - 1);
                char lost = s[last];
                s[last] = '\0';
@@ -203,10 +225,10 @@ static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, int index)
        return s;
 }
 
-static inline int lustre_cfg_len(__u32 bufcount, __u32 *buflens)
+static inline __u32 lustre_cfg_len(__u32 bufcount, __u32 *buflens)
 {
-        int i;
-        int len;
+       __u32 i;
+       __u32 len;
         ENTRY;
 
         len = LCFG_HDR_SIZE(bufcount);
@@ -219,30 +241,35 @@ static inline int lustre_cfg_len(__u32 bufcount, __u32 *buflens)
 
 #include <obd_support.h>
 
-static inline struct lustre_cfg *lustre_cfg_new(int cmd,
-                                                struct lustre_cfg_bufs *bufs)
+static inline void lustre_cfg_init(struct lustre_cfg *lcfg, int cmd,
+                                  struct lustre_cfg_bufs *bufs)
 {
-        struct lustre_cfg *lcfg;
-        char *ptr;
-        int i;
+       char *ptr;
+       __u32 i;
 
-        ENTRY;
+       lcfg->lcfg_version = LUSTRE_CFG_VERSION;
+       lcfg->lcfg_command = cmd;
+       lcfg->lcfg_bufcount = bufs->lcfg_bufcount;
 
-        OBD_ALLOC(lcfg, lustre_cfg_len(bufs->lcfg_bufcount,
-                                       bufs->lcfg_buflen));
-        if (!lcfg)
-                RETURN(ERR_PTR(-ENOMEM));
+       ptr = (char *)lcfg + LCFG_HDR_SIZE(lcfg->lcfg_bufcount);
+       for (i = 0; i < lcfg->lcfg_bufcount; i++) {
+               lcfg->lcfg_buflens[i] = bufs->lcfg_buflen[i];
+               LOGL((char *)bufs->lcfg_buf[i], bufs->lcfg_buflen[i], ptr);
+       }
+}
 
-        lcfg->lcfg_version = LUSTRE_CFG_VERSION;
-        lcfg->lcfg_command = cmd;
-        lcfg->lcfg_bufcount = bufs->lcfg_bufcount;
+static inline struct lustre_cfg *lustre_cfg_new(int cmd,
+                                               struct lustre_cfg_bufs *bufs)
+{
+       struct lustre_cfg       *lcfg;
 
-        ptr = (char *)lcfg + LCFG_HDR_SIZE(lcfg->lcfg_bufcount);
-        for (i = 0; i < lcfg->lcfg_bufcount; i++) {
-                lcfg->lcfg_buflens[i] = bufs->lcfg_buflen[i];
-                LOGL((char *)bufs->lcfg_buf[i], bufs->lcfg_buflen[i], ptr);
-        }
-        RETURN(lcfg);
+       ENTRY;
+
+       OBD_ALLOC(lcfg, lustre_cfg_len(bufs->lcfg_bufcount,
+                                      bufs->lcfg_buflen));
+       if (lcfg != NULL)
+               lustre_cfg_init(lcfg, cmd, bufs);
+       RETURN(lcfg);
 }
 
 static inline void lustre_cfg_free(struct lustre_cfg *lcfg)
@@ -256,7 +283,7 @@ static inline void lustre_cfg_free(struct lustre_cfg *lcfg)
         return;
 }
 
-static inline int lustre_cfg_sanity_check(void *buf, int len)
+static inline int lustre_cfg_sanity_check(void *buf, size_t len)
 {
         struct lustre_cfg *lcfg = (struct lustre_cfg *)buf;
         ENTRY;
@@ -286,7 +313,9 @@ static inline int lustre_cfg_sanity_check(void *buf, int len)
 
 #include <lustre/lustre_user.h>
 
+#ifndef INVALID_UID
 #define INVALID_UID     (-1)
+#endif
 
 /** @} cfg */