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7725ccfd JH |
1 | /* |
2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. | |
3 | * All rights reserved | |
4 | * www.brocade.com | |
5 | * | |
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
10 | * published by the Free Software Foundation | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
18 | #ifndef __BFA_FCPIM_PRIV_H__ | |
19 | #define __BFA_FCPIM_PRIV_H__ | |
20 | ||
21 | #include <bfa_fcpim.h> | |
22 | #include <defs/bfa_defs_fcpim.h> | |
23 | #include <cs/bfa_wc.h> | |
24 | #include "bfa_sgpg_priv.h" | |
25 | ||
26 | #define BFA_ITNIM_MIN 32 | |
27 | #define BFA_ITNIM_MAX 1024 | |
28 | ||
29 | #define BFA_IOIM_MIN 8 | |
30 | #define BFA_IOIM_MAX 2000 | |
31 | ||
32 | #define BFA_TSKIM_MIN 4 | |
33 | #define BFA_TSKIM_MAX 512 | |
34 | #define BFA_FCPIM_PATHTOV_DEF (30 * 1000) /* in millisecs */ | |
35 | #define BFA_FCPIM_PATHTOV_MAX (90 * 1000) /* in millisecs */ | |
36 | ||
37 | #define bfa_fcpim_stats(__fcpim, __stats) \ | |
f8ceafde | 38 | ((__fcpim)->stats.__stats++) |
7725ccfd JH |
39 | |
40 | struct bfa_fcpim_mod_s { | |
41 | struct bfa_s *bfa; | |
42 | struct bfa_itnim_s *itnim_arr; | |
43 | struct bfa_ioim_s *ioim_arr; | |
44 | struct bfa_ioim_sp_s *ioim_sp_arr; | |
45 | struct bfa_tskim_s *tskim_arr; | |
46 | struct bfa_dma_s snsbase; | |
47 | int num_itnims; | |
48 | int num_ioim_reqs; | |
49 | int num_tskim_reqs; | |
50 | u32 path_tov; | |
51 | u16 q_depth; | |
52 | u16 rsvd; | |
53 | struct list_head itnim_q; /* queue of active itnim */ | |
54 | struct list_head ioim_free_q; /* free IO resources */ | |
55 | struct list_head ioim_resfree_q; /* IOs waiting for f/w */ | |
56 | struct list_head ioim_comp_q; /* IO global comp Q */ | |
57 | struct list_head tskim_free_q; | |
58 | u32 ios_active; /* current active IOs */ | |
59 | u32 delay_comp; | |
60 | struct bfa_fcpim_stats_s stats; | |
61 | }; | |
62 | ||
63 | struct bfa_ioim_s; | |
64 | struct bfa_tskim_s; | |
65 | ||
66 | /** | |
67 | * BFA IO (initiator mode) | |
68 | */ | |
69 | struct bfa_ioim_s { | |
70 | struct list_head qe; /* queue elememt */ | |
71 | bfa_sm_t sm; /* BFA ioim state machine */ | |
72 | struct bfa_s *bfa; /* BFA module */ | |
73 | struct bfa_fcpim_mod_s *fcpim; /* parent fcpim module */ | |
74 | struct bfa_itnim_s *itnim; /* i-t-n nexus for this IO */ | |
75 | struct bfad_ioim_s *dio; /* driver IO handle */ | |
76 | u16 iotag; /* FWI IO tag */ | |
77 | u16 abort_tag; /* unqiue abort request tag */ | |
78 | u16 nsges; /* number of SG elements */ | |
79 | u16 nsgpgs; /* number of SG pages */ | |
80 | struct bfa_sgpg_s *sgpg; /* first SG page */ | |
81 | struct list_head sgpg_q; /* allocated SG pages */ | |
82 | struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ | |
83 | bfa_cb_cbfn_t io_cbfn; /* IO completion handler */ | |
84 | struct bfa_ioim_sp_s *iosp; /* slow-path IO handling */ | |
85 | }; | |
86 | ||
87 | struct bfa_ioim_sp_s { | |
88 | struct bfi_msg_s comp_rspmsg; /* IO comp f/w response */ | |
89 | u8 *snsinfo; /* sense info for this IO */ | |
90 | struct bfa_sgpg_wqe_s sgpg_wqe; /* waitq elem for sgpg */ | |
91 | struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ | |
92 | bfa_boolean_t abort_explicit; /* aborted by OS */ | |
93 | struct bfa_tskim_s *tskim; /* Relevant TM cmd */ | |
94 | }; | |
95 | ||
96 | /** | |
97 | * BFA Task management command (initiator mode) | |
98 | */ | |
99 | struct bfa_tskim_s { | |
100 | struct list_head qe; | |
101 | bfa_sm_t sm; | |
102 | struct bfa_s *bfa; /* BFA module */ | |
103 | struct bfa_fcpim_mod_s *fcpim; /* parent fcpim module */ | |
104 | struct bfa_itnim_s *itnim; /* i-t-n nexus for this IO */ | |
105 | struct bfad_tskim_s *dtsk; /* driver task mgmt cmnd */ | |
106 | bfa_boolean_t notify; /* notify itnim on TM comp */ | |
107 | lun_t lun; /* lun if applicable */ | |
108 | enum fcp_tm_cmnd tm_cmnd; /* task management command */ | |
109 | u16 tsk_tag; /* FWI IO tag */ | |
110 | u8 tsecs; /* timeout in seconds */ | |
111 | struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ | |
112 | struct list_head io_q; /* queue of affected IOs */ | |
113 | struct bfa_wc_s wc; /* waiting counter */ | |
114 | struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ | |
115 | enum bfi_tskim_status tsk_status; /* TM status */ | |
116 | }; | |
117 | ||
118 | /** | |
119 | * BFA i-t-n (initiator mode) | |
120 | */ | |
121 | struct bfa_itnim_s { | |
122 | struct list_head qe; /* queue element */ | |
123 | bfa_sm_t sm; /* i-t-n im BFA state machine */ | |
124 | struct bfa_s *bfa; /* bfa instance */ | |
125 | struct bfa_rport_s *rport; /* bfa rport */ | |
126 | void *ditn; /* driver i-t-n structure */ | |
127 | struct bfi_mhdr_s mhdr; /* pre-built mhdr */ | |
128 | u8 msg_no; /* itnim/rport firmware handle */ | |
129 | u8 reqq; /* CQ for requests */ | |
130 | struct bfa_cb_qe_s hcb_qe; /* bfa callback qelem */ | |
131 | struct list_head pending_q; /* queue of pending IO requests*/ | |
132 | struct list_head io_q; /* queue of active IO requests */ | |
133 | struct list_head io_cleanup_q; /* IO being cleaned up */ | |
134 | struct list_head tsk_q; /* queue of active TM commands */ | |
135 | struct list_head delay_comp_q;/* queue of failed inflight cmds */ | |
136 | bfa_boolean_t seq_rec; /* SQER supported */ | |
137 | bfa_boolean_t is_online; /* itnim is ONLINE for IO */ | |
138 | bfa_boolean_t iotov_active; /* IO TOV timer is active */ | |
139 | struct bfa_wc_s wc; /* waiting counter */ | |
140 | struct bfa_timer_s timer; /* pending IO TOV */ | |
141 | struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */ | |
142 | struct bfa_fcpim_mod_s *fcpim; /* fcpim module */ | |
143 | struct bfa_itnim_hal_stats_s stats; | |
144 | }; | |
145 | ||
f8ceafde | 146 | #define bfa_itnim_is_online(_itnim) ((_itnim)->is_online) |
7725ccfd JH |
147 | #define BFA_FCPIM_MOD(_hal) (&(_hal)->modules.fcpim_mod) |
148 | #define BFA_IOIM_FROM_TAG(_fcpim, _iotag) \ | |
149 | (&fcpim->ioim_arr[_iotag]) | |
150 | #define BFA_TSKIM_FROM_TAG(_fcpim, _tmtag) \ | |
151 | (&fcpim->tskim_arr[_tmtag & (fcpim->num_tskim_reqs - 1)]) | |
152 | ||
153 | /* | |
154 | * function prototypes | |
155 | */ | |
156 | void bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, | |
157 | struct bfa_meminfo_s *minfo); | |
158 | void bfa_ioim_detach(struct bfa_fcpim_mod_s *fcpim); | |
159 | void bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); | |
160 | void bfa_ioim_good_comp_isr(struct bfa_s *bfa, | |
161 | struct bfi_msg_s *msg); | |
162 | void bfa_ioim_cleanup(struct bfa_ioim_s *ioim); | |
163 | void bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, | |
164 | struct bfa_tskim_s *tskim); | |
165 | void bfa_ioim_iocdisable(struct bfa_ioim_s *ioim); | |
166 | void bfa_ioim_tov(struct bfa_ioim_s *ioim); | |
167 | ||
168 | void bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, | |
169 | struct bfa_meminfo_s *minfo); | |
170 | void bfa_tskim_detach(struct bfa_fcpim_mod_s *fcpim); | |
171 | void bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); | |
172 | void bfa_tskim_iodone(struct bfa_tskim_s *tskim); | |
173 | void bfa_tskim_iocdisable(struct bfa_tskim_s *tskim); | |
174 | void bfa_tskim_cleanup(struct bfa_tskim_s *tskim); | |
175 | ||
176 | void bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, | |
177 | u32 *dm_len); | |
178 | void bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim, | |
179 | struct bfa_meminfo_s *minfo); | |
180 | void bfa_itnim_detach(struct bfa_fcpim_mod_s *fcpim); | |
181 | void bfa_itnim_iocdisable(struct bfa_itnim_s *itnim); | |
182 | void bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *msg); | |
183 | void bfa_itnim_iodone(struct bfa_itnim_s *itnim); | |
184 | void bfa_itnim_tskdone(struct bfa_itnim_s *itnim); | |
185 | bfa_boolean_t bfa_itnim_hold_io(struct bfa_itnim_s *itnim); | |
186 | ||
187 | #endif /* __BFA_FCPIM_PRIV_H__ */ | |
188 |