a61127c213
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright(c) 2007 Intel Corporation. All rights reserved.
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*
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* Maintained at www.Open-FCoE.org
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*/
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#ifndef _FC_FC2_H_
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#define _FC_FC2_H_
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/*
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* Fibre Channel Exchanges and Sequences.
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*/
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#ifndef PACKED
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#define PACKED __attribute__ ((__packed__))
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#endif /* PACKED */
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/*
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* Sequence Status Block.
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* This format is set by the FC-FS standard and is sent over the wire.
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* Note that the fields aren't all naturally aligned.
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*/
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struct fc_ssb {
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__u8 ssb_seq_id; /* sequence ID */
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__u8 _ssb_resvd;
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__be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */
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__be16 ssb_high_seq_cnt; /* highest SEQ_CNT */
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__be16 ssb_s_stat; /* sequence status flags */
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__be16 ssb_err_seq_cnt; /* error SEQ_CNT */
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__u8 ssb_fh_cs_ctl; /* frame header CS_CTL */
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__be16 ssb_fh_ox_id; /* frame header OX_ID */
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__be16 ssb_rx_id; /* responder's exchange ID */
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__u8 _ssb_resvd2[2];
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} PACKED;
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/*
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* The SSB should be 17 bytes. Since it's layout is somewhat strange,
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* we define the size here so that code can ASSERT that the size comes out
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* correct.
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*/
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#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */
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/*
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* ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
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*/
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#define SSB_ST_RESP (1 << 15) /* sequence responder */
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#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */
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#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */
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#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */
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#define SSB_ST_REQ_CONT (0 << 10)
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#define SSB_ST_REQ_ABORT (1 << 10)
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#define SSB_ST_REQ_STOP (2 << 10)
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#define SSB_ST_REQ_RETRANS (3 << 10)
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#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */
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#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */
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#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */
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#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */
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#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */
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#define SSB_ST_CLASS_MASK 3 /* class of service mask */
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#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */
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/*
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* Exchange Status Block.
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* This format is set by the FC-FS standard and is sent over the wire.
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* Note that the fields aren't all naturally aligned.
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*/
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struct fc_esb {
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__u8 esb_cs_ctl; /* CS_CTL for frame header */
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__be16 esb_ox_id; /* originator exchange ID */
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__be16 esb_rx_id; /* responder exchange ID */
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__be32 esb_orig_fid; /* fabric ID of originator */
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__be32 esb_resp_fid; /* fabric ID of responder */
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__be32 esb_e_stat; /* status */
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__u8 _esb_resvd[4];
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__u8 esb_service_params[112]; /* TBD */
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__u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */
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} __attribute__((packed));
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/*
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* Define expected size for ASSERTs.
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* See comments on FC_SSB_SIZE.
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*/
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#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */
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/*
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* esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
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*/
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#define ESB_ST_RESP (1 << 31) /* responder to exchange */
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#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiative */
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#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */
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#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */
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#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */
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#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */
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#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */
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#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */
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#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */
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#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */
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#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */
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#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */
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#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */
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#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */
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#endif /* _FC_FC2_H_ */
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