scsi/fc/fc_els.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
5  * Maintained at www.Open-FCoE.org
15  * Fibre Channel Switch - Enhanced Link Services definitions.
16  * From T11 FC-LS Rev 1.2 June 7, 2005.
20  * ELS Command codes - byte 0 of the frame payload
28 	ELS_ABTX =	0x06,	/* Abort exchange - obsolete */
30 	ELS_RES =	0x08,	/* read exchange status block */
31 	ELS_RSS =	0x09,	/* read sequence status block */
37 	ELS_RLS =	0x0f,	/* read link error status block */
56 	ELS_NACT =	0x33,	/* N-port activate alias_id */
57 	ELS_NDACT =	0x34,	/* N-port deactivate alias_id */
66 	ELS_RPS =	0x56,	/* read port status block */
72 	ELS_RNFT =	0x63,	/* report node FC-4 types */
81 	ELS_SBRP =	0x7c,	/* set bit-error reporting params */
85 	ELS_LKA =	0x80,	/* link keep-alive */
183 	ELS_RJT_NONE =		0,	/* no reject - not to be sent */
201 	ELS_EXPL_SPP_OPT_ERR =	0x01,	/* service parameter error - options */
202 	ELS_EXPL_SPP_ICTL_ERR =	0x03,	/* service parm error - initiator ctl */
206 	ELS_EXPL_OXID_RXID =	0x17,	/* invalid OX_ID-RX_ID combination */
214 	/* TBD - above definitions incomplete */
259  * as the "tlv header" - which contains the tag and len fields.
280 		(sizeof(desc) - FC_TLV_DESC_HDR_SZ)
284 		(__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ)
317  * Common service parameters (N ports).
322 	__be16		sp_bb_cred;	/* buffer-to-buffer credits */
324 	__be16		sp_bb_data;	/* b-b state number and data field sz */
362 #define	FC_SP_FT_HUNT	0x0080	/* hunt group */
372  * Class-specific service parameters.
380 	__be16		cp_ee_cred;	/* N-port end-to-end credit */
392 #define	FC_CPC_CAMP	0x0200		/* camp-on */
416 	struct fc_els_cssp fl_cssp[4];	/* class 1-4 service parameters */
442  * SPP response code in spp_flags - lower 4 bits.
456  * ELS_RRQ - Reinstate Recovery Qualifier
460 	__u8		rrq_zero[3];	/* specified as zero - part of cmd */
468  * ELS_REC - Read exchange concise.
472 	__u8		rec_zero[3];	/* specified as zero - part of cmd */
484 	__u8		reca_zero[3];	/* specified as zero - part of cmd */
492 	__be32		reca_e_stat;	/* ESB (exchange status block) status */
496  * ELS_PRLI - Process login request and response.
506  * ELS_PRLO - Process logout request and response.
529  * ELS_LOGO - process or fabric logout.
533 	__u8		fl_zero[3];	/* specified as zero - part of cmd */
540  * ELS_RTV - read timeout value.
544 	__u8		rtv_zero[3];	/* specified as zero - part of cmd */
548  * LS_ACC for ELS_RTV - read timeout value.
552 	__u8		rtv_zero[3];	/* specified as zero - part of cmd */
565  * ELS_SCR - state change registration payload.
574 	ELS_SCRF_FAB =	1,	/* fabric-detected registration */
575 	ELS_SCRF_NPORT = 2,	/* Nx_Port-detected registration */
581  * ELS_RSCN - registered state change notification payload.
588 	/* followed by 4-byte generic affected Port_ID pages */
596 #define	ELS_RSCN_EV_QUAL_BIT	2	/* shift count for event qualifier */
598 #define	ELS_RSCN_ADDR_FMT_BIT	0	/* shift count for address format */
618  * ELS_RNID - request Node ID.
653 	__u8		rnid_vend_id[16]; /* vendor-unique ID */
662 	__be16		rnid_vend_spec;	/* vendor-specific field */
710  * ELS RPL - Read Port List.
714 	__u8		rpl_resv[5];	/* reserved - must be zero */
716 	__u8		rpl_resv1;	/* reserved - must be zero */
721  * Port number block in RPL response.
735 	__u8		rpl_resv1;	/* reserved - must be zero */
737 	__u8		rpl_resv2;	/* reserved - must be zero */
739 	__u8		rpl_resv3;	/* reserved - must be zero */
745  * Link Error Status Block.
748 	__be32		lesb_link_fail;	/* link failure count */
749 	__be32		lesb_sync_loss;	/* loss of synchronization count */
750 	__be32		lesb_sig_loss;	/* loss of signal count */
751 	__be32		lesb_prim_err;	/* primitive sequence error count */
752 	__be32		lesb_inv_word;	/* invalid transmission word count */
753 	__be32		lesb_inv_crc;	/* invalid CRC count */
757  * ELS RPS - Read Port Status Block request.
761 	__u8		rps_resv[2];	/* reserved - must be zero */
762 	__u8		rps_flag;	/* flag - see below */
776 	__u8		rps_cmd;	/* command - LS_ACC */
777 	__u8		rps_resv[2];	/* reserved - must be zero */
778 	__u8		rps_flag;	/* flag - see below */
780 	__be16		rps_status;	/* port status - see below */
781 	struct fc_els_lesb rps_lesb;	/* link error status block */
789 	FC_ELS_RPS_PTP =	1 << 5,	/* point-to-point connection */
798  * ELS LIRR - Link Incident Record Registration request.
802 	__u8		lirr_resv[3];	/* reserved - must be zero */
804 	__u8		lirr_fmt;	/* FC-4 type of RLIR requested */
805 	__u8		lirr_resv2[2];	/* reserved - must be zero */
809 	ELS_LIRR_SET_COND = 	0x01,	/* set - conditionally receive */
810 	ELS_LIRR_SET_UNCOND = 	0x02,	/* set - unconditionally receive */
815  * ELS SRL - Scan Remote Loop request.
819 	__u8		srl_resv[3];	/* reserved - must be zero */
820 	__u8		srl_flag;	/* flag - see below */
825 	FC_ELS_SRL_ALL =	0x00,	/* scan all FL ports */
832  * ELS RLS - Read Link Error Status Block request.
836 	__u8		rls_resv[4];	/* reserved - must be zero */
845 	__u8		rls_resv[3];	/* reserved - must be zero */
846 	struct fc_els_lesb rls_lesb;	/* link error status block */
850  * ELS RLIR - Registered Link Incident Report.
855 	__u8		rlir_resv[3];	/* reserved - must be zero */
856 	__u8		rlir_fmt;	/* format (FC4-type if type specific) */
863  * CLIR - Common Link Incident Record Data. - Sent via RLIR.
882  * CLIR clir_ts_fmt - time stamp format values.
891  * Common Link Incident Descriptor - sent via RLIR.
905 	ELS_CLID_SEV_MASK =	0x0c,	/* severity 2-bit field mask */
918 	ELS_CLID_IC_BER =	2,	/* bit-error-rate threshold exceeded */
920 	ELS_CLID_IC_NOS =	4,	/* non-operational primitive sequence */
1094 	__u8		resv[3];	/* reserved - must be zero */
1098  * ELS_FPIN - Fabric Performance Impact Notification
1102 	__u8		fpin_zero[3];	/* specified as zero - part of cmd */
1110 /* Diagnostic Function Descriptor - FPIN Registration */
1117 	__be32		count;		/* Number of desc_tags elements */  member
1129  * ELS_RDF - Register Diagnostic Functions
1133 	__u8		fpin_zero[3];	/* specified as zero - part of cmd */
1192 	EDC_CG_SIGFREQ_CNT_MIN =	1,	/* Min Frequency Count */
1193 	EDC_CG_SIGFREQ_CNT_MAX =	999,	/* Max Frequency Count */
1200 	__be16		count;		/* Time between signals  member
1203 	__be16		units;		/* Time unit for count
1225  * ELS_EDC - Exchange Diagnostic Capabilities
1229 	__u8		edc_zero[3];	/* specified as zero - part of cmd */