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Karan Tilak Kumarmartinkpetersen
Karan Tilak Kumar
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martinkpetersen
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scsi: fnic: Add headers and definitions for FDLS
Add headers and definitions for FDLS (Fabric Discovery and Login Services). Reviewed-by: Sesidhar Baddela <[email protected]> Co-developed-by: Gian Carlo Boffa <[email protected]> Signed-off-by: Gian Carlo Boffa <[email protected]> Co-developed-by: Arulprabhu Ponnusamy <[email protected]> Signed-off-by: Arulprabhu Ponnusamy <[email protected]> Co-developed-by: Arun Easi <[email protected]> Signed-off-by: Arun Easi <[email protected]> Co-developed-by: Karan Tilak Kumar <[email protected]> Signed-off-by: Karan Tilak Kumar <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin K. Petersen <[email protected]>
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‎drivers/scsi/fnic/fdls_fc.h

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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*/
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#ifndef _FDLS_FC_H_
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#define _FDLS_FC_H_
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/* This file contains the declarations for FC fabric services
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* and target discovery
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*
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* Request and Response for
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* 1. FLOGI
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* 2. PLOGI to Fabric Controller
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* 3. GPN_ID, GPN_FT
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* 4. RSCN
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* 5. PLOGI to Target
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* 6. PRLI to Target
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*/
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#include <scsi/scsi.h>
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#include <scsi/fc/fc_els.h>
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#include <uapi/scsi/fc/fc_fs.h>
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#include <uapi/scsi/fc/fc_ns.h>
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#include <uapi/scsi/fc/fc_gs.h>
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#include <uapi/linux/if_ether.h>
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#include <scsi/fc/fc_ms.h>
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#include <linux/minmax.h>
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#include <linux/if_ether.h>
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#include <scsi/fc/fc_encaps.h>
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#include <scsi/fc/fc_fcoe.h>
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#define FDLS_MIN_FRAMES (32)
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#define FDLS_MIN_FRAME_ELEM (4)
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#define FNIC_FCP_SP_RD_XRDY_DIS 0x00000002
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#define FNIC_FCP_SP_TARGET 0x00000010
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#define FNIC_FCP_SP_INITIATOR 0x00000020
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#define FNIC_FCP_SP_CONF_CMPL 0x00000080
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#define FNIC_FCP_SP_RETRY 0x00000100
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#define FNIC_FC_CONCUR_SEQS (0xFF)
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#define FNIC_FC_RO_INFO (0x1F)
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/* Little Endian */
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#define FNIC_UNASSIGNED_OXID (0xffff)
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#define FNIC_UNASSIGNED_RXID (0xffff)
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#define FNIC_ELS_REQ_FCTL (0x000029)
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#define FNIC_ELS_REP_FCTL (0x000099)
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#define FNIC_FCP_RSP_FCTL (0x000099)
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#define FNIC_REQ_ABTS_FCTL (0x000009)
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#define FNIC_FC_PH_VER_HI (0x20)
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#define FNIC_FC_PH_VER_LO (0x20)
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#define FNIC_FC_PH_VER (0x2020)
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#define FNIC_FC_B2B_CREDIT (0x0A)
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#define FNIC_FC_B2B_RDF_SZ (0x0800)
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#define FNIC_LOGI_RDF_SIZE(_logi) ((_logi).fl_csp.sp_bb_data)
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#define FNIC_LOGI_R_A_TOV(_logi) ((_logi).fl_csp.sp_r_a_tov)
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#define FNIC_LOGI_E_D_TOV(_logi) ((_logi).fl_csp.sp_e_d_tov)
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#define FNIC_LOGI_FEATURES(_logi) (be16_to_cpu((_logi).fl_csp.sp_features))
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#define FNIC_LOGI_PORT_NAME(_logi) ((_logi).fl_wwpn)
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#define FNIC_LOGI_NODE_NAME(_logi) ((_logi).fl_wwnn)
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#define FNIC_LOGI_SET_RDF_SIZE(_logi, _rdf_size) \
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(FNIC_LOGI_RDF_SIZE(_logi) = cpu_to_be16(_rdf_size))
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#define FNIC_LOGI_SET_E_D_TOV(_logi, _e_d_tov) \
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(FNIC_LOGI_E_D_TOV(_logi) = cpu_to_be32(_e_d_tov))
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#define FNIC_LOGI_SET_R_A_TOV(_logi, _r_a_tov) \
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(FNIC_LOGI_R_A_TOV(_logi) = cpu_to_be32(_r_a_tov))
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#define FNIC_STD_SET_S_ID(_fchdr, _sid) memcpy((_fchdr).fh_s_id, _sid, 3)
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#define FNIC_STD_SET_D_ID(_fchdr, _did) memcpy((_fchdr).fh_d_id, _did, 3)
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#define FNIC_STD_SET_OX_ID(_fchdr, _oxid) ((_fchdr).fh_ox_id = cpu_to_be16(_oxid))
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#define FNIC_STD_SET_RX_ID(_fchdr, _rxid) ((_fchdr).fh_rx_id = cpu_to_be16(_rxid))
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#define FNIC_STD_SET_R_CTL(_fchdr, _rctl) ((_fchdr).fh_r_ctl = _rctl)
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#define FNIC_STD_SET_TYPE(_fchdr, _type) ((_fchdr).fh_type = _type)
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#define FNIC_STD_SET_F_CTL(_fchdr, _fctl) \
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put_unaligned_be24(_fctl, &((_fchdr).fh_f_ctl))
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#define FNIC_STD_SET_NPORT_NAME(_ptr, _wwpn) put_unaligned_be64(_wwpn, _ptr)
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#define FNIC_STD_SET_NODE_NAME(_ptr, _wwnn) put_unaligned_be64(_wwnn, _ptr)
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#define FNIC_STD_SET_PORT_ID(__req, __portid) \
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memcpy(__req.fr_fid.fp_fid, __portid, 3)
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#define FNIC_STD_SET_PORT_NAME(_req, _pName) \
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(put_unaligned_be64(_pName, &_req.fr_wwn))
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#define FNIC_STD_GET_OX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_ox_id))
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#define FNIC_STD_GET_RX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_rx_id))
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#define FNIC_STD_GET_S_ID(_fchdr) ((_fchdr)->fh_s_id)
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#define FNIC_STD_GET_D_ID(_fchdr) ((_fchdr)->fh_d_id)
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#define FNIC_STD_GET_TYPE(_fchdr) ((_fchdr)->fh_type)
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#define FNIC_STD_GET_F_CTL(_fchdr) ((_fchdr)->fh_f_ctl)
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#define FNIC_STD_GET_R_CTL(_fchdr) ((_fchdr)->fh_r_ctl)
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#define FNIC_STD_GET_FC_CT_CMD(__fcct_hdr) (be16_to_cpu(__fcct_hdr->ct_cmd))
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#define FNIC_FCOE_MAX_FRAME_SZ (2048)
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#define FNIC_FCOE_MIN_FRAME_SZ (280)
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#define FNIC_FC_MAX_PAYLOAD_LEN (2048)
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#define FNIC_MIN_DATA_FIELD_SIZE (256)
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#define FNIC_FC_EDTOV_NSEC (0x400)
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#define FNIC_NSEC_TO_MSEC (0x1000000)
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#define FCP_PRLI_FUNC_TARGET (0x0010)
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#define FNIC_FC_R_CTL_SOLICITED_DATA (0x21)
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#define FNIC_FC_F_CTL_LAST_END_SEQ (0x98)
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#define FNIC_FC_F_CTL_LAST_END_SEQ_INT (0x99)
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#define FNIC_FC_F_CTL_FIRST_LAST_SEQINIT (0x29)
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#define FNIC_FC_R_CTL_FC4_SCTL (0x03)
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#define FNIC_FC_CS_CTL (0x00)
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#define FNIC_FC_FRAME_UNSOLICITED(_fchdr) \
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(_fchdr->fh_r_ctl == FC_RCTL_ELS_REQ)
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#define FNIC_FC_FRAME_SOLICITED_DATA(_fchdr) \
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(_fchdr->fh_r_ctl == FNIC_FC_R_CTL_SOLICITED_DATA)
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#define FNIC_FC_FRAME_SOLICITED_CTRL_REPLY(_fchdr) \
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(_fchdr->fh_r_ctl == FC_RCTL_ELS_REP)
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#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ(_fchdr) \
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(_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ)
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#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ_INT(_fchdr) \
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(_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ_INT)
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#define FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(_fchdr) \
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(_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_FIRST_LAST_SEQINIT)
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#define FNIC_FC_FRAME_FC4_SCTL(_fchdr) \
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(_fchdr->fh_r_ctl == FNIC_FC_R_CTL_FC4_SCTL)
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#define FNIC_FC_FRAME_TYPE_BLS(_fchdr) (_fchdr->fh_type == FC_TYPE_BLS)
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#define FNIC_FC_FRAME_TYPE_ELS(_fchdr) (_fchdr->fh_type == FC_TYPE_ELS)
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#define FNIC_FC_FRAME_TYPE_FC_GS(_fchdr) (_fchdr->fh_type == FC_TYPE_CT)
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#define FNIC_FC_FRAME_CS_CTL(_fchdr) (_fchdr->fh_cs_ctl == FNIC_FC_CS_CTL)
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#define FNIC_FC_C3_RDF (0xfff)
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#define FNIC_FC_PLOGI_RSP_RDF(_plogi_rsp) \
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(min(_plogi_rsp->u.csp_plogi.b2b_rdf_size, \
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(_plogi_rsp->spc3[4] & FNIC_FC_C3_RDF)))
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#define FNIC_FC_PLOGI_RSP_CONCUR_SEQ(_plogi_rsp) \
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(min((uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_csp.sp_tot_seq)), \
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(uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_cssp[2].cp_con_seq) & 0xff)))
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/* FLOGI/PLOGI struct */
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struct fc_std_flogi {
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struct fc_frame_header fchdr;
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struct fc_els_flogi els;
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} __packed;
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struct fc_std_els_acc_rsp {
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struct fc_frame_header fchdr;
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struct fc_els_ls_acc acc;
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} __packed;
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struct fc_std_els_rjt_rsp {
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struct fc_frame_header fchdr;
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struct fc_els_ls_rjt rej;
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} __packed;
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struct fc_std_els_adisc {
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struct fc_frame_header fchdr;
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struct fc_els_adisc els;
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} __packed;
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struct fc_std_rls_acc {
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struct fc_frame_header fchdr;
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struct fc_els_rls_resp els;
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} __packed;
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struct fc_std_abts_ba_acc {
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struct fc_frame_header fchdr;
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struct fc_ba_acc acc;
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} __packed;
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struct fc_std_abts_ba_rjt {
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struct fc_frame_header fchdr;
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struct fc_ba_rjt rjt;
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} __packed;
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struct fc_std_els_prli {
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struct fc_frame_header fchdr;
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struct fc_els_prli els_prli;
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struct fc_els_spp sp;
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} __packed;
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struct fc_std_rpn_id {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_ns_rn_id rpn_id;
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} __packed;
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struct fc_std_fdmi_rhba {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_fdmi_rhba rhba;
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} __packed;
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struct fc_std_fdmi_rpa {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_fdmi_rpa rpa;
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} __packed;
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struct fc_std_rft_id {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_ns_rft_id rft_id;
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} __packed;
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struct fc_std_rff_id {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_ns_rff_id rff_id;
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} __packed;
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struct fc_std_gpn_ft {
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struct fc_frame_header fchdr;
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struct fc_ct_hdr fc_std_ct_hdr;
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struct fc_ns_gid_ft gpn_ft;
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} __packed;
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/* Accept CT_IU for GPN_FT */
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struct fc_gpn_ft_rsp_iu {
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uint8_t ctrl;
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uint8_t fcid[3];
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uint32_t rsvd;
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__be64 wwpn;
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} __packed;
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struct fc_std_rls {
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struct fc_frame_header fchdr;
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struct fc_els_rls els;
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} __packed;
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struct fc_std_scr {
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struct fc_frame_header fchdr;
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struct fc_els_scr scr;
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} __packed;
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struct fc_std_rscn {
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struct fc_frame_header fchdr;
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struct fc_els_rscn els;
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} __packed;
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struct fc_std_logo {
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struct fc_frame_header fchdr;
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struct fc_els_logo els;
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} __packed;
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#define FNIC_ETH_FCOE_HDRS_OFFSET \
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(sizeof(struct ethhdr) + sizeof(struct fcoe_hdr))
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#endif /* _FDLS_FC_H */

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