1 | /* |
2 | * This file is part of the Chelsio FCoE driver for Linux. |
3 | * |
4 | * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. |
5 | * |
6 | * This software is available to you under a choice of one of two |
7 | * licenses. You may choose to be licensed under the terms of the GNU |
8 | * General Public License (GPL) Version 2, available from the file |
9 | * COPYING in the main directory of this source tree, or the |
10 | * OpenIB.org BSD license below: |
11 | * |
12 | * Redistribution and use in source and binary forms, with or |
13 | * without modification, are permitted provided that the following |
14 | * conditions are met: |
15 | * |
16 | * - Redistributions of source code must retain the above |
17 | * copyright notice, this list of conditions and the following |
18 | * disclaimer. |
19 | * |
20 | * - Redistributions in binary form must reproduce the above |
21 | * copyright notice, this list of conditions and the following |
22 | * disclaimer in the documentation and/or other materials |
23 | * provided with the distribution. |
24 | * |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
32 | * SOFTWARE. |
33 | */ |
34 | |
35 | #ifndef __CSIO_LNODE_H__ |
36 | #define __CSIO_LNODE_H__ |
37 | |
38 | #include <linux/kref.h> |
39 | #include <linux/timer.h> |
40 | #include <linux/workqueue.h> |
41 | #include <scsi/fc/fc_els.h> |
42 | |
43 | |
44 | #include "csio_defs.h" |
45 | #include "csio_hw.h" |
46 | |
47 | #define CSIO_FCOE_MAX_NPIV 128 |
48 | #define CSIO_FCOE_MAX_RNODES 2048 |
49 | |
50 | /* FDMI port attribute unknown speed */ |
51 | #define CSIO_HBA_PORTSPEED_UNKNOWN 0x8000 |
52 | |
53 | extern int csio_fcoe_rnodes; |
54 | extern int csio_fdmi_enable; |
55 | |
56 | /* State machine evets */ |
57 | enum csio_ln_ev { |
58 | CSIO_LNE_NONE = (uint32_t)0, |
59 | CSIO_LNE_LINKUP, |
60 | CSIO_LNE_FAB_INIT_DONE, |
61 | CSIO_LNE_LINK_DOWN, |
62 | CSIO_LNE_DOWN_LINK, |
63 | CSIO_LNE_LOGO, |
64 | CSIO_LNE_CLOSE, |
65 | CSIO_LNE_MAX_EVENT, |
66 | }; |
67 | |
68 | |
69 | struct csio_fcf_info { |
70 | struct list_head list; |
71 | uint8_t priority; |
72 | uint8_t mac[6]; |
73 | uint8_t name_id[8]; |
74 | uint8_t fabric[8]; |
75 | uint16_t vf_id; |
76 | uint8_t vlan_id; |
77 | uint16_t max_fcoe_size; |
78 | uint8_t fc_map[3]; |
79 | uint32_t fka_adv; |
80 | uint32_t fcfi; |
81 | uint8_t get_next:1; |
82 | uint8_t link_aff:1; |
83 | uint8_t fpma:1; |
84 | uint8_t spma:1; |
85 | uint8_t login:1; |
86 | uint8_t portid; |
87 | uint8_t spma_mac[6]; |
88 | struct kref kref; |
89 | }; |
90 | |
91 | /* Defines for flags */ |
92 | #define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */ |
93 | #define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */ |
94 | #define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */ |
95 | #define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */ |
96 | |
97 | /* Transport events */ |
98 | enum csio_ln_fc_evt { |
99 | CSIO_LN_FC_LINKUP = 1, |
100 | CSIO_LN_FC_LINKDOWN, |
101 | CSIO_LN_FC_RSCN, |
102 | CSIO_LN_FC_ATTRIB_UPDATE, |
103 | }; |
104 | |
105 | /* Lnode stats */ |
106 | struct csio_lnode_stats { |
107 | uint32_t n_link_up; /* Link down */ |
108 | uint32_t n_link_down; /* Link up */ |
109 | uint32_t n_err; /* error */ |
110 | uint32_t n_err_nomem; /* memory not available */ |
111 | uint32_t n_inval_parm; /* Invalid parameters */ |
112 | uint32_t n_evt_unexp; /* unexpected event */ |
113 | uint32_t n_evt_drop; /* dropped event */ |
114 | uint32_t n_rnode_match; /* matched rnode */ |
115 | uint32_t n_dev_loss_tmo; /* Device loss timeout */ |
116 | uint32_t n_fdmi_err; /* fdmi err */ |
117 | uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */ |
118 | enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */ |
119 | uint32_t n_rnode_alloc; /* rnode allocated */ |
120 | uint32_t n_rnode_free; /* rnode freed */ |
121 | uint32_t n_rnode_nomem; /* rnode alloc failure */ |
122 | uint32_t n_input_requests; /* Input Requests */ |
123 | uint32_t n_output_requests; /* Output Requests */ |
124 | uint32_t n_control_requests; /* Control Requests */ |
125 | uint32_t n_input_bytes; /* Input Bytes */ |
126 | uint32_t n_output_bytes; /* Output Bytes */ |
127 | uint32_t rsvd1; |
128 | }; |
129 | |
130 | /* Common Lnode params */ |
131 | struct csio_lnode_params { |
132 | uint32_t ra_tov; |
133 | uint32_t fcfi; |
134 | uint32_t log_level; /* Module level for debugging */ |
135 | }; |
136 | |
137 | struct csio_service_parms { |
138 | struct fc_els_csp csp; /* Common service parms */ |
139 | uint8_t wwpn[8]; /* WWPN */ |
140 | uint8_t wwnn[8]; /* WWNN */ |
141 | struct fc_els_cssp clsp[4]; /* Class service params */ |
142 | uint8_t vvl[16]; /* Vendor version level */ |
143 | }; |
144 | |
145 | /* Lnode */ |
146 | struct csio_lnode { |
147 | struct csio_sm sm; /* State machine + sibling |
148 | * lnode list. |
149 | */ |
150 | struct csio_hw *hwp; /* Pointer to the HW module */ |
151 | uint8_t portid; /* Port ID */ |
152 | uint8_t rsvd1; |
153 | uint16_t rsvd2; |
154 | uint32_t dev_num; /* Device number */ |
155 | uint32_t flags; /* Flags */ |
156 | struct list_head fcf_lsthead; /* FCF entries */ |
157 | struct csio_fcf_info *fcfinfo; /* FCF in use */ |
158 | struct csio_ioreq *mgmt_req; /* MGMT request */ |
159 | |
160 | /* FCoE identifiers */ |
161 | uint8_t mac[6]; |
162 | uint32_t nport_id; |
163 | struct csio_service_parms ln_sparm; /* Service parms */ |
164 | |
165 | /* Firmware identifiers */ |
166 | uint32_t fcf_flowid; /*fcf flowid */ |
167 | uint32_t vnp_flowid; |
168 | uint16_t ssn_cnt; /* Registered Session */ |
169 | uint8_t cur_evt; /* Current event */ |
170 | uint8_t prev_evt; /* Previous event */ |
171 | |
172 | /* Children */ |
173 | struct list_head cln_head; /* Head of the children lnode |
174 | * list. |
175 | */ |
176 | uint32_t num_vports; /* Total NPIV/children LNodes*/ |
177 | struct csio_lnode *pln; /* Parent lnode of child |
178 | * lnodes. |
179 | */ |
180 | struct list_head cmpl_q; /* Pending I/Os on this lnode */ |
181 | |
182 | /* Remote node information */ |
183 | struct list_head rnhead; /* Head of rnode list */ |
184 | uint32_t num_reg_rnodes; /* Number of rnodes registered |
185 | * with the host. |
186 | */ |
187 | uint32_t n_scsi_tgts; /* Number of scsi targets |
188 | * found |
189 | */ |
190 | uint32_t last_scan_ntgts;/* Number of scsi targets |
191 | * found per last scan. |
192 | */ |
193 | uint32_t tgt_scan_tick; /* timer started after |
194 | * new tgt found |
195 | */ |
196 | /* FC transport data */ |
197 | struct fc_vport *fc_vport; |
198 | struct fc_host_statistics fch_stats; |
199 | |
200 | struct csio_lnode_stats stats; /* Common lnode stats */ |
201 | struct csio_lnode_params params; /* Common lnode params */ |
202 | }; |
203 | |
204 | #define csio_lnode_to_hw(ln) ((ln)->hwp) |
205 | #define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln) |
206 | #define csio_parent_lnode(ln) ((ln)->pln) |
207 | #define csio_ln_flowid(ln) ((ln)->vnp_flowid) |
208 | #define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn) |
209 | #define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn) |
210 | |
211 | #define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0) |
212 | #define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0) |
213 | #define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0) |
214 | |
215 | |
216 | #define csio_ln_dbg(_ln, _fmt, ...) \ |
217 | csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
218 | CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
219 | |
220 | #define csio_ln_err(_ln, _fmt, ...) \ |
221 | csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
222 | CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
223 | |
224 | #define csio_ln_warn(_ln, _fmt, ...) \ |
225 | csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \ |
226 | CSIO_DEVID_LO(_ln), ##__VA_ARGS__); |
227 | |
228 | /* HW->Lnode notifications */ |
229 | enum csio_ln_notify { |
230 | CSIO_LN_NOTIFY_HWREADY = 1, |
231 | CSIO_LN_NOTIFY_HWSTOP, |
232 | CSIO_LN_NOTIFY_HWREMOVE, |
233 | CSIO_LN_NOTIFY_HWRESET, |
234 | }; |
235 | |
236 | void csio_fcoe_fwevt_handler(struct csio_hw *, __u8 cpl_op, __be64 *); |
237 | int csio_is_lnode_ready(struct csio_lnode *); |
238 | void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str); |
239 | struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *); |
240 | int csio_get_phy_port_stats(struct csio_hw *, uint8_t , |
241 | struct fw_fcoe_port_stats *); |
242 | int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long, |
243 | unsigned long, unsigned long); |
244 | void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify); |
245 | void csio_disable_lnodes(struct csio_hw *, uint8_t, bool); |
246 | void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt); |
247 | int csio_ln_fdmi_start(struct csio_lnode *, void *); |
248 | int csio_lnode_start(struct csio_lnode *); |
249 | void csio_lnode_stop(struct csio_lnode *); |
250 | void csio_lnode_close(struct csio_lnode *); |
251 | int csio_lnode_init(struct csio_lnode *, struct csio_hw *, |
252 | struct csio_lnode *); |
253 | void csio_lnode_exit(struct csio_lnode *); |
254 | |
255 | #endif /* ifndef __CSIO_LNODE_H__ */ |
256 | |