linux-stable-rt/drivers/target/iscsi/iscsi_target_stat.h

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iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 14:43:04 +08:00
#ifndef ISCSI_TARGET_STAT_H
#define ISCSI_TARGET_STAT_H
/*
* For struct iscsi_tiqn->tiqn_wwn default groups
*/
extern struct config_item_type iscsi_stat_instance_cit;
extern struct config_item_type iscsi_stat_sess_err_cit;
extern struct config_item_type iscsi_stat_tgt_attr_cit;
extern struct config_item_type iscsi_stat_login_cit;
extern struct config_item_type iscsi_stat_logout_cit;
/*
* For struct iscsi_session->se_sess default groups
*/
extern struct config_item_type iscsi_stat_sess_cit;
/* iSCSI session error types */
#define ISCSI_SESS_ERR_UNKNOWN 0
#define ISCSI_SESS_ERR_DIGEST 1
#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
#define ISCSI_SESS_ERR_PDU_FORMAT 3
/* iSCSI session error stats */
struct iscsi_sess_err_stats {
spinlock_t lock;
u32 digest_errors;
u32 cxn_timeout_errors;
u32 pdu_format_errors;
u32 last_sess_failure_type;
char last_sess_fail_rem_name[224];
} ____cacheline_aligned;
/* iSCSI login failure types (sub oids) */
#define ISCSI_LOGIN_FAIL_OTHER 2
#define ISCSI_LOGIN_FAIL_REDIRECT 3
#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
/* iSCSI login stats */
struct iscsi_login_stats {
spinlock_t lock;
u32 accepts;
u32 other_fails;
u32 redirects;
u32 authorize_fails;
u32 authenticate_fails;
u32 negotiate_fails; /* used for notifications */
u64 last_fail_time; /* time stamp (jiffies) */
u32 last_fail_type;
int last_intr_fail_ip_family;
unsigned char last_intr_fail_ip_addr[IPV6_ADDRESS_SPACE];
char last_intr_fail_name[224];
} ____cacheline_aligned;
/* iSCSI logout stats */
struct iscsi_logout_stats {
spinlock_t lock;
u32 normal_logouts;
u32 abnormal_logouts;
} ____cacheline_aligned;
#endif /*** ISCSI_TARGET_STAT_H ***/