linux/drivers/target/iscsi/iscsi_target_stat.h
Nicholas Bellinger e48354ce07 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>
2011-07-26 09:16:43 +00:00

65 lines
1.7 KiB
C

#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 ***/