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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>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
#ifndef ISCSI_TARGET_STAT_H
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#define ISCSI_TARGET_STAT_H
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/*
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* For struct iscsi_tiqn->tiqn_wwn default groups
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*/
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extern struct config_item_type iscsi_stat_instance_cit;
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extern struct config_item_type iscsi_stat_sess_err_cit;
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extern struct config_item_type iscsi_stat_tgt_attr_cit;
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extern struct config_item_type iscsi_stat_login_cit;
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extern struct config_item_type iscsi_stat_logout_cit;
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/*
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* For struct iscsi_session->se_sess default groups
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*/
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extern struct config_item_type iscsi_stat_sess_cit;
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/* iSCSI session error types */
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#define ISCSI_SESS_ERR_UNKNOWN 0
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#define ISCSI_SESS_ERR_DIGEST 1
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#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
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#define ISCSI_SESS_ERR_PDU_FORMAT 3
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/* iSCSI session error stats */
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struct iscsi_sess_err_stats {
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spinlock_t lock;
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u32 digest_errors;
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u32 cxn_timeout_errors;
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u32 pdu_format_errors;
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u32 last_sess_failure_type;
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char last_sess_fail_rem_name[224];
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} ____cacheline_aligned;
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/* iSCSI login failure types (sub oids) */
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#define ISCSI_LOGIN_FAIL_OTHER 2
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#define ISCSI_LOGIN_FAIL_REDIRECT 3
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#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
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#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
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#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
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/* iSCSI login stats */
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struct iscsi_login_stats {
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spinlock_t lock;
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u32 accepts;
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u32 other_fails;
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u32 redirects;
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u32 authorize_fails;
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u32 authenticate_fails;
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u32 negotiate_fails; /* used for notifications */
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u64 last_fail_time; /* time stamp (jiffies) */
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u32 last_fail_type;
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int last_intr_fail_ip_family;
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unsigned char last_intr_fail_ip_addr[IPV6_ADDRESS_SPACE];
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char last_intr_fail_name[224];
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} ____cacheline_aligned;
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/* iSCSI logout stats */
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struct iscsi_logout_stats {
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spinlock_t lock;
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u32 normal_logouts;
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u32 abnormal_logouts;
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} ____cacheline_aligned;
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#endif /*** ISCSI_TARGET_STAT_H ***/
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