From ad8175919e2bcc1bc0f47591cd22a8e6b19c89f0 Mon Sep 17 00:00:00 2001
From: lincent <lincent>
Date: Tue, 2 Aug 2005 10:20:55 +0000
Subject: [PATCH] new head file for mgc/mgs

---
 lustre/include/linux/lustre_export.h | 22 ++++++++++++++++++++++
 lustre/include/linux/lustre_idl.h    | 18 ++++++++++++++++++
 lustre/include/linux/obd.h           | 27 +++++++++++++++++++++++++++
 3 files changed, 67 insertions(+)

diff --git a/lustre/include/linux/lustre_export.h b/lustre/include/linux/lustre_export.h
index 012f3c8..027e692 100644
--- a/lustre/include/linux/lustre_export.h
+++ b/lustre/include/linux/lustre_export.h
@@ -8,6 +8,26 @@
 #include <linux/lustre_idl.h>
 #include <linux/lustre_dlm.h>
 
+/*export struct for mount-conf */
+/*FIXME: some attributes Mixed now*/
+/* Data stored per client in the last_rcvd file.  In le32 order. */
+struct mgs_client_data {
+        __u8 mcd_uuid[40];      /* client UUID */
+        __u64 mcd_last_transno; /* last completed transaction ID */
+        __u64 mcd_last_xid;     /* xid for the last transaction */
+        __u32 mcd_last_result;  /* result from last RPC */
+        __u32 mcd_last_data;    /* per-op data (disposition for open &c.) */
+        __u8 mcd_padding[MDS_LR_CLIENT_SIZE - 64];
+};
+
+struct mgs_export_data {
+        struct list_head        med_open_head;
+        spinlock_t              med_open_lock; /* lock med_open_head, mfd_list*/
+        struct mgs_client_data *med_mcd;
+        loff_t                  med_lr_off;
+        int                     med_lr_idx;
+};
+
 struct mds_client_data;
 
 struct mds_export_data {
@@ -72,12 +92,14 @@ struct obd_export {
                                   exp_replay_needed:1,
                                   exp_libclient:1; /* liblustre client? */
         union {
+                struct mgs_export_data    eu_mgs_data;
                 struct mds_export_data    eu_mds_data;
                 struct filter_export_data eu_filter_data;
                 struct ec_export_data     eu_ec_data;
         } u;
 };
 
+#define exp_mgs_data    u.eu_mgs_data
 #define exp_mds_data    u.eu_mds_data
 #define exp_lov_data    u.eu_lov_data
 #define exp_filter_data u.eu_filter_data
diff --git a/lustre/include/linux/lustre_idl.h b/lustre/include/linux/lustre_idl.h
index 9e676ab..b0cb0ed 100644
--- a/lustre/include/linux/lustre_idl.h
+++ b/lustre/include/linux/lustre_idl.h
@@ -92,6 +92,11 @@
 #define MGMT_REPLY_PORTAL              25
 #define MGMT_CLI_REQUEST_PORTAL        26
 #define MGMT_CLI_REPLY_PORTAL          27
+//#define MGC_REQUEST_PORTAL           28 
+#define MGC_REPLY_PORTAL               29
+#define MGS_REQUEST_PORTAL             30
+//#define MGS_REPLY_PORTAL             31
+
 
 #define SVC_KILLED               1
 #define SVC_EVENT                2
@@ -203,6 +208,7 @@ static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
 
 #define OBD_CONNECT_RDONLY 0x1
 
+#define MGS_CONNECT_SUPPORTED  (OBD_CONNECT_RDONLY)
 #define MDS_CONNECT_SUPPORTED  (OBD_CONNECT_RDONLY)
 #define OST_CONNECT_SUPPORTED  (0)
 #define ECHO_CONNECT_SUPPORTED (0)
@@ -1160,4 +1166,16 @@ typedef enum {
         QUOTA_DQREL     = 602,
 } quota_cmd_t;
 
+/*mount-conf*/
+
+/*
+ * Opcodes for management/monitoring node.
+ */
+typedef enum {
+        MGS_CONNECT = 700,
+        MGS_DISCONNECT,
+        MGS_LAST_OPC
+} mgs_cmd_t;
+#define MGS_FIRSTOPC MGS_CONNECT,
+
 #endif
diff --git a/lustre/include/linux/obd.h b/lustre/include/linux/obd.h
index 87bfcba..ece6e98 100644
--- a/lustre/include/linux/obd.h
+++ b/lustre/include/linux/obd.h
@@ -302,6 +302,31 @@ struct client_obd {
         int                      cl_qchk_stat; /* quotacheck stat of the peer */
 };
 
+struct mgs_server_data;
+
+/*a light client obd for mount-conf */
+struct mgc_obd {
+        struct obd_import       *cl_import;
+        struct semaphore         cl_sem;
+        int                      cl_conn_count;
+        struct mgc_rpc_lock     *cl_rpc_lock;
+}
+
+struct mgs_obd {
+        struct ptlrpc_service           *mgs_service;
+        struct vfsmount                 *mgs_vfsmnt;
+        struct super_block              *mgs_sb;
+        struct file                     *mgs_rcvd_filp;
+        spinlock_t                       mgs_transno_lock;
+        __u64                            mgs_last_transno;
+        struct mgs_server_data          *mgs_server_data;
+        struct dentry                   *mgs_configs_dir;
+        struct llog_handle              *mgs_cfg_llh;
+        char                            *mgs_profile;
+        unsigned long                   *mgs_client_bitmap;
+        struct semaphore                 mgs_orphan_recovery_sem;
+};
+
 /* Like a client, with some hangers-on.  Keep mc_client_obd first so that we
  * can reuse the various client setup/connect functions. */
 struct mgmtcli_obd {
@@ -565,6 +590,8 @@ struct obd_device {
                 struct cache_obd cobd;
                 struct ptlbd_obd ptlbd;
                 struct mgmtcli_obd mgmtcli;
+                struct mgc_obd mgc;
+                struct mgs_obd mgs;
         } u;
        /* Fields used by LProcFS */
         unsigned int           obd_cntr_base;
-- 
1.8.3.1