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 */
56 	ELS_NACT =	0x33,	/* N-port activate alias_id */
57 	ELS_NDACT =	0x34,	/* N-port deactivate alias_id */
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 */
212 	ELS_EXPL_INV_LEN =	0x2d,	/* Invalid payload length */
214 	/* TBD - above definitions incomplete */
259  * as the "tlv header" - which contains the tag and len fields.
263 	__be32		desc_len;	/* Length of Descriptor (in bytes).
276  * Macro, used when initializing payloads, to return the descriptor length.
277  * Length is size of descriptor minus the tag and len fields.
280 		(sizeof(desc) - FC_TLV_DESC_HDR_SZ)
282 /* Macro, used on received payloads, to return the descriptor length */
284 		(__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ)
305 	__be32		desc_len;	/* Length of Descriptor (in bytes) (4).
312 	} rqst_w0;			/* Request word 0 */
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 */
369 #define	FC_SP_FT_PAYL	0x0001	/* FLOGI payload length 256, else 116 */
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 */
496  * ELS_PRLI - Process login request and response.
500 	__u8		prli_spp_len;	/* length of each serv. parm. page */
501 	__be16		prli_len;	/* length of entire payload */
506  * ELS_PRLO - Process logout request and response.
511 	__be16          prlo_len;       /* payload length */
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.
585 	__u8		rscn_page_len;	/* page length (4) */
586 	__be16		rscn_plen;	/* payload length including this word */
588 	/* followed by 4-byte generic affected Port_ID pages */
618  * ELS_RNID - request Node ID.
642 	__u8		rnid_cid_len;	/* common ID data length */
644 	__u8		rnid_sid_len;	/* specific ID data length */
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 */
735 	__u8		rpl_resv1;	/* reserved - must be zero */
736 	__be16		rpl_plen;	/* payload length */
737 	__u8		rpl_resv2;	/* reserved - must be zero */
738 	__u8		rpl_llen[3];	/* list length */
739 	__u8		rpl_resv3;	/* reserved - must be zero */
752 	__be32		lesb_inv_word;	/* invalid transmission word 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 */
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 */
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) */
857 	__u8		rlir_clr_len;	/* common link incident record length */
858 	__u8		rlir_cld_len;	/* common link incident desc. length */
859 	__u8		rlir_slr_len;	/* spec. link incident record length */
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 */
951 	{ FPIN_LI_INVALID_TX_WD,	"Invalid Transmission Word" },	\
1010 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1040 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1056 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1082 	__be32		desc_len;	/* Length of Descriptor (in bytes).
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 */
1103 	__be32		desc_len;	/* Length of Descriptor List (in bytes).
1110 /* Diagnostic Function Descriptor - FPIN Registration */
1113 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1129  * ELS_RDF - Register Diagnostic Functions
1133 	__u8		fpin_zero[3];	/* specified as zero - part of cmd */
1134 	__be32		desc_len;	/* Length of Descriptor List (in bytes).
1146 	__be32			desc_list_len;	/* Length of response (in
1164 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1213 	__be32		desc_len;	/* Length of Descriptor (in bytes).
1225  * ELS_EDC - Exchange Diagnostic Capabilities
1229 	__u8		edc_zero[3];	/* specified as zero - part of cmd */
1230 	__be32		desc_len;	/* Length of Descriptor List (in bytes).
1243 	__be32			desc_list_len;	/* Length of response (in