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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2008 Cisco Systems, Inc. All rights reserved.
4 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 */
6
7#ifndef _FDLS_FC_H_
8#define _FDLS_FC_H_
9
10/* This file contains the declarations for FC fabric services
11 * and target discovery
12 *
13 * Request and Response for
14 * 1. FLOGI
15 * 2. PLOGI to Fabric Controller
16 * 3. GPN_ID, GPN_FT
17 * 4. RSCN
18 * 5. PLOGI to Target
19 * 6. PRLI to Target
20 */
21
22#include <scsi/scsi.h>
23#include <scsi/fc/fc_els.h>
24#include <uapi/scsi/fc/fc_fs.h>
25#include <uapi/scsi/fc/fc_ns.h>
26#include <uapi/scsi/fc/fc_gs.h>
27#include <uapi/linux/if_ether.h>
28#include <scsi/fc/fc_ms.h>
29#include <linux/minmax.h>
30#include <linux/if_ether.h>
31#include <scsi/fc/fc_encaps.h>
32#include <scsi/fc/fc_fcoe.h>
33
34#define FDLS_MIN_FRAMES (32)
35#define FDLS_MIN_FRAME_ELEM (4)
36#define FNIC_FCP_SP_RD_XRDY_DIS 0x00000002
37#define FNIC_FCP_SP_TARGET 0x00000010
38#define FNIC_FCP_SP_INITIATOR 0x00000020
39#define FNIC_FCP_SP_CONF_CMPL 0x00000080
40#define FNIC_FCP_SP_RETRY 0x00000100
41
42#define FNIC_FC_CONCUR_SEQS (0xFF)
43#define FNIC_FC_RO_INFO (0x1F)
44
45/* Little Endian */
46#define FNIC_UNASSIGNED_OXID (0xffff)
47#define FNIC_UNASSIGNED_RXID (0xffff)
48#define FNIC_ELS_REQ_FCTL (0x000029)
49#define FNIC_ELS_REP_FCTL (0x000099)
50
51#define FNIC_FCP_RSP_FCTL (0x000099)
52#define FNIC_REQ_ABTS_FCTL (0x000009)
53
54#define FNIC_FC_PH_VER_HI (0x20)
55#define FNIC_FC_PH_VER_LO (0x20)
56#define FNIC_FC_PH_VER (0x2020)
57#define FNIC_FC_B2B_CREDIT (0x0A)
58#define FNIC_FC_B2B_RDF_SZ (0x0800)
59
60#define FNIC_LOGI_RDF_SIZE(_logi) ((_logi).fl_csp.sp_bb_data)
61#define FNIC_LOGI_R_A_TOV(_logi) ((_logi).fl_csp.sp_r_a_tov)
62#define FNIC_LOGI_E_D_TOV(_logi) ((_logi).fl_csp.sp_e_d_tov)
63#define FNIC_LOGI_FEATURES(_logi) (be16_to_cpu((_logi).fl_csp.sp_features))
64#define FNIC_LOGI_PORT_NAME(_logi) ((_logi).fl_wwpn)
65#define FNIC_LOGI_NODE_NAME(_logi) ((_logi).fl_wwnn)
66
67#define FNIC_LOGI_SET_RDF_SIZE(_logi, _rdf_size) \
68 (FNIC_LOGI_RDF_SIZE(_logi) = cpu_to_be16(_rdf_size))
69#define FNIC_LOGI_SET_E_D_TOV(_logi, _e_d_tov) \
70 (FNIC_LOGI_E_D_TOV(_logi) = cpu_to_be32(_e_d_tov))
71#define FNIC_LOGI_SET_R_A_TOV(_logi, _r_a_tov) \
72 (FNIC_LOGI_R_A_TOV(_logi) = cpu_to_be32(_r_a_tov))
73
74#define FNIC_STD_SET_S_ID(_fchdr, _sid) memcpy((_fchdr).fh_s_id, _sid, 3)
75#define FNIC_STD_SET_D_ID(_fchdr, _did) memcpy((_fchdr).fh_d_id, _did, 3)
76#define FNIC_STD_SET_OX_ID(_fchdr, _oxid) ((_fchdr).fh_ox_id = cpu_to_be16(_oxid))
77#define FNIC_STD_SET_RX_ID(_fchdr, _rxid) ((_fchdr).fh_rx_id = cpu_to_be16(_rxid))
78
79#define FNIC_STD_SET_R_CTL(_fchdr, _rctl) ((_fchdr).fh_r_ctl = _rctl)
80#define FNIC_STD_SET_TYPE(_fchdr, _type) ((_fchdr).fh_type = _type)
81#define FNIC_STD_SET_F_CTL(_fchdr, _fctl) \
82 put_unaligned_be24(_fctl, &((_fchdr).fh_f_ctl))
83
84#define FNIC_STD_SET_NPORT_NAME(_ptr, _wwpn) put_unaligned_be64(_wwpn, _ptr)
85#define FNIC_STD_SET_NODE_NAME(_ptr, _wwnn) put_unaligned_be64(_wwnn, _ptr)
86#define FNIC_STD_SET_PORT_ID(__req, __portid) \
87 memcpy(__req.fr_fid.fp_fid, __portid, 3)
88#define FNIC_STD_SET_PORT_NAME(_req, _pName) \
89 (put_unaligned_be64(_pName, &_req.fr_wwn))
90
91#define FNIC_STD_GET_OX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_ox_id))
92#define FNIC_STD_GET_RX_ID(_fchdr) (be16_to_cpu((_fchdr)->fh_rx_id))
93#define FNIC_STD_GET_S_ID(_fchdr) ((_fchdr)->fh_s_id)
94#define FNIC_STD_GET_D_ID(_fchdr) ((_fchdr)->fh_d_id)
95#define FNIC_STD_GET_TYPE(_fchdr) ((_fchdr)->fh_type)
96#define FNIC_STD_GET_F_CTL(_fchdr) ((_fchdr)->fh_f_ctl)
97#define FNIC_STD_GET_R_CTL(_fchdr) ((_fchdr)->fh_r_ctl)
98
99#define FNIC_STD_GET_FC_CT_CMD(__fcct_hdr) (be16_to_cpu(__fcct_hdr->ct_cmd))
100
101#define FNIC_FCOE_MAX_FRAME_SZ (2048)
102#define FNIC_FCOE_MIN_FRAME_SZ (280)
103#define FNIC_FC_MAX_PAYLOAD_LEN (2048)
104#define FNIC_MIN_DATA_FIELD_SIZE (256)
105
106#define FNIC_FC_EDTOV_NSEC (0x400)
107#define FNIC_NSEC_TO_MSEC (0x1000000)
108#define FCP_PRLI_FUNC_TARGET (0x0010)
109
110#define FNIC_FC_R_CTL_SOLICITED_DATA (0x21)
111#define FNIC_FC_F_CTL_LAST_END_SEQ (0x98)
112#define FNIC_FC_F_CTL_LAST_END_SEQ_INT (0x99)
113#define FNIC_FC_F_CTL_FIRST_LAST_SEQINIT (0x29)
114#define FNIC_FC_R_CTL_FC4_SCTL (0x03)
115#define FNIC_FC_CS_CTL (0x00)
116
117#define FNIC_FC_FRAME_UNSOLICITED(_fchdr) \
118 (_fchdr->fh_r_ctl == FC_RCTL_ELS_REQ)
119#define FNIC_FC_FRAME_SOLICITED_DATA(_fchdr) \
120 (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_SOLICITED_DATA)
121#define FNIC_FC_FRAME_SOLICITED_CTRL_REPLY(_fchdr) \
122 (_fchdr->fh_r_ctl == FC_RCTL_ELS_REP)
123#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ(_fchdr) \
124 (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ)
125#define FNIC_FC_FRAME_FCTL_LAST_END_SEQ_INT(_fchdr) \
126 (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_LAST_END_SEQ_INT)
127#define FNIC_FC_FRAME_FCTL_FIRST_LAST_SEQINIT(_fchdr) \
128 (_fchdr->fh_f_ctl[0] == FNIC_FC_F_CTL_FIRST_LAST_SEQINIT)
129#define FNIC_FC_FRAME_FC4_SCTL(_fchdr) \
130 (_fchdr->fh_r_ctl == FNIC_FC_R_CTL_FC4_SCTL)
131#define FNIC_FC_FRAME_TYPE_BLS(_fchdr) (_fchdr->fh_type == FC_TYPE_BLS)
132#define FNIC_FC_FRAME_TYPE_ELS(_fchdr) (_fchdr->fh_type == FC_TYPE_ELS)
133#define FNIC_FC_FRAME_TYPE_FC_GS(_fchdr) (_fchdr->fh_type == FC_TYPE_CT)
134#define FNIC_FC_FRAME_CS_CTL(_fchdr) (_fchdr->fh_cs_ctl == FNIC_FC_CS_CTL)
135
136#define FNIC_FC_C3_RDF (0xfff)
137#define FNIC_FC_PLOGI_RSP_RDF(_plogi_rsp) \
138 (min(_plogi_rsp->u.csp_plogi.b2b_rdf_size, \
139 (_plogi_rsp->spc3[4] & FNIC_FC_C3_RDF)))
140#define FNIC_FC_PLOGI_RSP_CONCUR_SEQ(_plogi_rsp) \
141 (min((uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_csp.sp_tot_seq)), \
142 (uint16_t) (be16_to_cpu(_plogi_rsp->els.fl_cssp[2].cp_con_seq) & 0xff)))
143
144/* FLOGI/PLOGI struct */
145struct fc_std_flogi {
146 struct fc_frame_header fchdr;
147 struct fc_els_flogi els;
148} __packed;
149
150struct fc_std_els_acc_rsp {
151 struct fc_frame_header fchdr;
152 struct fc_els_ls_acc acc;
153} __packed;
154
155struct fc_std_els_rjt_rsp {
156 struct fc_frame_header fchdr;
157 struct fc_els_ls_rjt rej;
158} __packed;
159
160struct fc_std_els_adisc {
161 struct fc_frame_header fchdr;
162 struct fc_els_adisc els;
163} __packed;
164
165struct fc_std_rls_acc {
166 struct fc_frame_header fchdr;
167 struct fc_els_rls_resp els;
168} __packed;
169
170struct fc_std_abts_ba_acc {
171 struct fc_frame_header fchdr;
172 struct fc_ba_acc acc;
173} __packed;
174
175struct fc_std_abts_ba_rjt {
176 struct fc_frame_header fchdr;
177 struct fc_ba_rjt rjt;
178} __packed;
179
180struct fc_std_els_prli {
181 struct fc_frame_header fchdr;
182 struct fc_els_prli els_prli;
183 struct fc_els_spp sp;
184} __packed;
185
186struct fc_std_rpn_id {
187 struct fc_frame_header fchdr;
188 struct fc_ct_hdr fc_std_ct_hdr;
189 struct fc_ns_rn_id rpn_id;
190} __packed;
191
192struct fc_std_fdmi_rhba {
193 struct fc_frame_header fchdr;
194 struct fc_ct_hdr fc_std_ct_hdr;
195 struct fc_fdmi_rhba rhba;
196} __packed;
197
198struct fc_std_fdmi_rpa {
199 struct fc_frame_header fchdr;
200 struct fc_ct_hdr fc_std_ct_hdr;
201 struct fc_fdmi_rpa rpa;
202} __packed;
203
204struct fc_std_rft_id {
205 struct fc_frame_header fchdr;
206 struct fc_ct_hdr fc_std_ct_hdr;
207 struct fc_ns_rft_id rft_id;
208} __packed;
209
210struct fc_std_rff_id {
211 struct fc_frame_header fchdr;
212 struct fc_ct_hdr fc_std_ct_hdr;
213 struct fc_ns_rff_id rff_id;
214} __packed;
215
216struct fc_std_gpn_ft {
217 struct fc_frame_header fchdr;
218 struct fc_ct_hdr fc_std_ct_hdr;
219 struct fc_ns_gid_ft gpn_ft;
220} __packed;
221
222/* Accept CT_IU for GPN_FT */
223struct fc_gpn_ft_rsp_iu {
224 uint8_t ctrl;
225 uint8_t fcid[3];
226 uint32_t rsvd;
227 __be64 wwpn;
228} __packed;
229
230struct fc_std_rls {
231 struct fc_frame_header fchdr;
232 struct fc_els_rls els;
233} __packed;
234
235struct fc_std_scr {
236 struct fc_frame_header fchdr;
237 struct fc_els_scr scr;
238} __packed;
239
240struct fc_std_rscn {
241 struct fc_frame_header fchdr;
242 struct fc_els_rscn els;
243} __packed;
244
245struct fc_std_logo {
246 struct fc_frame_header fchdr;
247 struct fc_els_logo els;
248} __packed;
249
250#define FNIC_ETH_FCOE_HDRS_OFFSET \
251 (sizeof(struct ethhdr) + sizeof(struct fcoe_hdr))
252
253#endif /* _FDLS_FC_H */