github/open-cas-linux
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Redesign failover standby management

Browse Source 
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga
2021-12-17 09:23:37 +01:00
parent 4333f5f62c
commit 63bab9584c
11 changed files with 481 additions and 203 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
modules/include/cas_ioctl_codes.h
View File

@@ -36,7 +36,8 @@
#define CACHE_INIT_NEW 0 /**< initialize new metadata from fresh start */
#define CACHE_INIT_LOAD 1 /**< load existing metadata */
#define CACHE_INIT_STANDBY 2 /**< initialize failover standby cache */
#define CACHE_INIT_STANDBY_NEW 2 /**< initialize failover standby cache */
#define CACHE_INIT_STANDBY_LOAD 3 /**< load failover standby cache */
struct kcas_start_cache {
/**
@@ -352,14 +353,14 @@ struct kcas_get_cache_param {
int ext_err_code;
};
struct kcas_failover_detach
struct kcas_standby_detach
{
uint16_t cache_id;
int ext_err_code;
};
struct kcas_failover_activate
struct kcas_standby_activate
{
uint16_t cache_id;
char cache_path[MAX_STR_LEN]; /**< path to an ssd*/
@@ -498,10 +499,10 @@ struct kcas_failover_activate
#define KCAS_IOCTL_REMOVE_INACTIVE _IOWR(KCAS_IOCTL_MAGIC, 37, struct kcas_remove_inactive)
/** Detach caching drive from failover standby cache instance */
#define KCAS_IOCTL_FAILOVER_DETACH _IOWR(KCAS_IOCTL_MAGIC, 38, struct kcas_failover_detach)
#define KCAS_IOCTL_STANDBY_DETACH _IOWR(KCAS_IOCTL_MAGIC, 38, struct kcas_standby_detach)
/** Activate standby failover cache instance */
#define KCAS_IOCTL_FAILOVER_ACTIVATE _IOWR(KCAS_IOCTL_MAGIC, 39, struct kcas_failover_activate)
/** Activate failover standby cache instance */
#define KCAS_IOCTL_STANDBY_ACTIVATE _IOWR(KCAS_IOCTL_MAGIC, 39, struct kcas_standby_activate)
/**
* Extended kernel CAS error codes