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  +   ˆl–äY>”TÔD¨ 	Å‚vàŸSÿÁ„]?_†I|¥+ÁÀ -·    /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Copyright(c) 2007 Intel Corporation. All rights reserved.
 *
 * Maintained at www.Open-FCoE.org
 */

#ifndef _FC_FS_H_
#define _FC_FS_H_

#include <linux/types.h>

/*
 * Fibre Channel Framing and Signalling definitions.
 * From T11 FC-FS-2 Rev 0.90 - 9 August 2005.
 */

/*
 * Frame header
 */
struct fc_frame_header {
	__u8          fh_r_ctl;	/* routing control */
	__u8          fh_d_id[3];	/* Destination ID */

	__u8          fh_cs_ctl;	/* class of service control / pri */
	__u8          fh_s_id[3];	/* Source ID */

	__u8          fh_type;		/* see enum fc_fh_type below */
	__u8          fh_f_ctl[3];	/* frame control */

	__u8          fh_seq_id;	/* sequence ID */
	__u8          fh_df_ctl;	/* data field control */
	__be16        fh_seq_cnt;	/* sequence count */

	__be16        fh_ox_id;		/* originator exchange ID */
	__be16        fh_rx_id;		/* responder exchange ID */
	__be32        fh_parm_offset;	/* parameter or relative offset */
};

#define FC_FRAME_HEADER_LEN 24	/* expected length of structure */

#define FC_MAX_PAYLOAD  2112U		/* max payload length in bytes */
#define FC_MIN_MAX_PAYLOAD  256U 	/* lower limit on max payload */

#define FC_MAX_FRAME	(FC_MAX_PAYLOAD + FC_FRAME_HEADER_LEN)
#define FC_MIN_MAX_FRAME (FC_MIN_MAX_PAYLOAD + FC_FRAME_HEADER_LEN)

/*
 * fh_r_ctl - Routing control definitions.
 */
    /*
     * FC-4 device_data.
     */
enum fc_rctl {
	FC_RCTL_DD_UNCAT = 0x00,	/* uncategorized information */
	FC_RCTL_DD_SOL_DATA = 0x01,	/* solicited data */
	FC_RCTL_DD_UNSOL_CTL = 0x02,	/* unsolicited control */
	FC_RCTL_DD_SOL_CTL = 0x03,	/* solicited control or reply */
	FC_RCTL_DD_UNSOL_DATA = 0x04,	/* unsolicited data */
	FC_RCTL_DD_DATA_DESC = 0x05,	/* data descriptor */
	FC_RCTL_DD_UNSOL_CMD = 0x06,	/* unsolicited command */
	FC_RCTL_DD_CMD_STATUS = 0x07,	/* command status */

#define FC_RCTL_ILS_REQ FC_RCTL_DD_UNSOL_CTL	/* ILS request */
#define FC_RCTL_ILS_REP FC_RCTL_DD_SOL_CTL	/* ILS reply */

	/*
	 * Extended Link_Data
	 */
	FC_RCTL_ELS_REQ = 0x22,	/* extended link services request */
	FC_RCTL_ELS_REP = 0x23,	/* extended link services reply */
	FC_RCTL_ELS4_REQ = 0x32, /* FC-4 ELS request */
	FC_RCTL_ELS4_REP = 0x33, /* FC-4 ELS reply */
	/*
	 * Optional Extended Headers
	 */
	FC_RCTL_VFTH = 0x50,	/* virtual fabric tagging header */
	FC_RCTL_IFRH = 0x51,	/* inter-fabric routing header */
	FC_RCTL_ENCH = 0x52,	/* encapsulation header */
	/*
	 * Basic Link Services fh_r_ctl values.
	 */
	FC_RCTL_BA_NOP = 0x80,	/* basic link service NOP */
	FC_RCTL_BA_ABTS = 0x81,	/* basic link service abort */
	FC_RCTL_BA_RMC = 0x82,	/* remove connection */
	FC_RCTL_BA_ACC = 0x84,	/* basic accept */
	FC_RCTL_BA_RJT = 0x85,	/* basic reject */
	FC_RCTL_BA_PRMT = 0x86,	/* dedicated connection preempted */
	/*
	 * Link Control Information.
	 */
	FC_RCTL_ACK_1 = 0xc0,	/* acknowledge_1 */
	FC_RCTL_ACK_0 = 0xc1,	/* acknowledge_0 */
	FC_RCTL_P_RJT = 0xc2,	/* port reject */
	FC_RCTL_F_RJT = 0xc3,	/* fabric reject */
	FC_RCTL_P_BSY = 0xc4,	/* port busy */
	FC_RCTL_F_BSY = 0xc5,	/* fabric busy to data frame */
	FC_RCTL_F_BSYL = 0xc6,	/* fabric busy to link control frame */
	FC_RCTL_LCR = 0xc7,	/* link credit reset */
	FC_RCTL_END = 0xc9,	/* end */
};
				    /* incomplete list of definitions */

/*
 * R_CTL names initializer.
 * Please keep this matching the above definitions.
 */
#define FC_RCTL_NAMES_INIT { \
	[FC_RCTL_DD_UNCAT] =		"uncat",			\
	[FC_RCTL_DD_SOL_DATA] =		"sol data",			\
	[FC_RCTL_DD_UNSOL_CTL] =	"unsol ctl",			\
	[FC_RCTL_DD_SOL_CTL] =		"sol ctl/reply",		\
	[FC_RCTL_DD_UNSOL_DATA] =	"unsol data",			\
	[FC_RCTL_DD_DATA_DESC] =	"data desc",			\
	[FC_RCTL_DD_UNSOL_CMD] =	"unsol cmd",			\
	[FC_RCTL_DD_CMD_STATUS] =	"cmd status",			\
	[FC_RCTL_ELS_REQ] =		"ELS req",			\
	[FC_RCTL_ELS_REP] =		"ELS rep",			\
	[FC_RCTL_ELS4_REQ] =		"FC-4 ELS req",			\
	[FC_RCTL_ELS4_REP] =		"FC-4 ELS rep",			\
	[FC_RCTL_BA_NOP] =		"BLS NOP",			\
	[FC_RCTL_BA_ABTS] =		"BLS abort",			\
	[FC_RCTL_BA_RMC] =		"