Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 1 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 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 | |
Maggie Zhang | f16a175 | 2010-12-09 19:12:32 -0800 | [diff] [blame] | 18 | #include "bfad_drv.h" |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 19 | #include "bfa_modules.h" |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 20 | |
| 21 | BFA_TRC_FILE(HAL, FCPIM); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 22 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 23 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 24 | * BFA ITNIM Related definitions |
| 25 | */ |
| 26 | static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim); |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 27 | static bfa_boolean_t bfa_ioim_lm_proc_rpl_data(struct bfa_ioim_s *ioim); |
| 28 | static bfa_boolean_t bfa_ioim_lm_proc_inq_data(struct bfa_ioim_s *ioim); |
| 29 | static void bfa_ioim_lm_init(struct bfa_s *bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 30 | |
| 31 | #define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \ |
| 32 | (((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1)))) |
| 33 | |
| 34 | #define bfa_fcpim_additn(__itnim) \ |
| 35 | list_add_tail(&(__itnim)->qe, &(__itnim)->fcpim->itnim_q) |
| 36 | #define bfa_fcpim_delitn(__itnim) do { \ |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 37 | WARN_ON(!bfa_q_is_on_q(&(__itnim)->fcpim->itnim_q, __itnim)); \ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 38 | bfa_itnim_update_del_itn_stats(__itnim); \ |
| 39 | list_del(&(__itnim)->qe); \ |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 40 | WARN_ON(!list_empty(&(__itnim)->io_q)); \ |
| 41 | WARN_ON(!list_empty(&(__itnim)->io_cleanup_q)); \ |
| 42 | WARN_ON(!list_empty(&(__itnim)->pending_q)); \ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 43 | } while (0) |
| 44 | |
| 45 | #define bfa_itnim_online_cb(__itnim) do { \ |
| 46 | if ((__itnim)->bfa->fcs) \ |
| 47 | bfa_cb_itnim_online((__itnim)->ditn); \ |
| 48 | else { \ |
| 49 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ |
| 50 | __bfa_cb_itnim_online, (__itnim)); \ |
| 51 | } \ |
| 52 | } while (0) |
| 53 | |
| 54 | #define bfa_itnim_offline_cb(__itnim) do { \ |
| 55 | if ((__itnim)->bfa->fcs) \ |
| 56 | bfa_cb_itnim_offline((__itnim)->ditn); \ |
| 57 | else { \ |
| 58 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ |
| 59 | __bfa_cb_itnim_offline, (__itnim)); \ |
| 60 | } \ |
| 61 | } while (0) |
| 62 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 63 | #define bfa_ioim_rp_wwn(__ioim) \ |
| 64 | (((struct bfa_fcs_rport_s *) \ |
| 65 | (__ioim)->itnim->rport->rport_drv)->pwwn) |
| 66 | |
| 67 | #define bfa_ioim_lp_wwn(__ioim) \ |
| 68 | ((BFA_LPS_FROM_TAG(BFA_LPS_MOD((__ioim)->bfa), \ |
| 69 | (__ioim)->itnim->rport->rport_info.lp_tag))->pwwn) \ |
| 70 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 71 | #define bfa_itnim_sler_cb(__itnim) do { \ |
| 72 | if ((__itnim)->bfa->fcs) \ |
| 73 | bfa_cb_itnim_sler((__itnim)->ditn); \ |
| 74 | else { \ |
| 75 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ |
| 76 | __bfa_cb_itnim_sler, (__itnim)); \ |
| 77 | } \ |
| 78 | } while (0) |
| 79 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 80 | enum bfa_ioim_lm_status { |
| 81 | BFA_IOIM_LM_PRESENT = 1, |
| 82 | BFA_IOIM_LM_LUN_NOT_SUP = 2, |
| 83 | BFA_IOIM_LM_RPL_DATA_CHANGED = 3, |
| 84 | BFA_IOIM_LM_LUN_NOT_RDY = 4, |
| 85 | }; |
| 86 | |
| 87 | enum bfa_ioim_lm_ua_status { |
| 88 | BFA_IOIM_LM_UA_RESET = 0, |
| 89 | BFA_IOIM_LM_UA_SET = 1, |
| 90 | }; |
| 91 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 92 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 93 | * itnim state machine event |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 94 | */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 95 | enum bfa_itnim_event { |
| 96 | BFA_ITNIM_SM_CREATE = 1, /* itnim is created */ |
| 97 | BFA_ITNIM_SM_ONLINE = 2, /* itnim is online */ |
| 98 | BFA_ITNIM_SM_OFFLINE = 3, /* itnim is offline */ |
| 99 | BFA_ITNIM_SM_FWRSP = 4, /* firmware response */ |
| 100 | BFA_ITNIM_SM_DELETE = 5, /* deleting an existing itnim */ |
| 101 | BFA_ITNIM_SM_CLEANUP = 6, /* IO cleanup completion */ |
| 102 | BFA_ITNIM_SM_SLER = 7, /* second level error recovery */ |
| 103 | BFA_ITNIM_SM_HWFAIL = 8, /* IOC h/w failure event */ |
| 104 | BFA_ITNIM_SM_QRESUME = 9, /* queue space available */ |
| 105 | }; |
| 106 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 107 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 108 | * BFA IOIM related definitions |
| 109 | */ |
| 110 | #define bfa_ioim_move_to_comp_q(__ioim) do { \ |
| 111 | list_del(&(__ioim)->qe); \ |
| 112 | list_add_tail(&(__ioim)->qe, &(__ioim)->fcpim->ioim_comp_q); \ |
| 113 | } while (0) |
| 114 | |
| 115 | |
| 116 | #define bfa_ioim_cb_profile_comp(__fcpim, __ioim) do { \ |
| 117 | if ((__fcpim)->profile_comp) \ |
| 118 | (__fcpim)->profile_comp(__ioim); \ |
| 119 | } while (0) |
| 120 | |
| 121 | #define bfa_ioim_cb_profile_start(__fcpim, __ioim) do { \ |
| 122 | if ((__fcpim)->profile_start) \ |
| 123 | (__fcpim)->profile_start(__ioim); \ |
| 124 | } while (0) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 125 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 126 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 127 | * IO state machine events |
| 128 | */ |
| 129 | enum bfa_ioim_event { |
| 130 | BFA_IOIM_SM_START = 1, /* io start request from host */ |
| 131 | BFA_IOIM_SM_COMP_GOOD = 2, /* io good comp, resource free */ |
| 132 | BFA_IOIM_SM_COMP = 3, /* io comp, resource is free */ |
| 133 | BFA_IOIM_SM_COMP_UTAG = 4, /* io comp, resource is free */ |
| 134 | BFA_IOIM_SM_DONE = 5, /* io comp, resource not free */ |
| 135 | BFA_IOIM_SM_FREE = 6, /* io resource is freed */ |
| 136 | BFA_IOIM_SM_ABORT = 7, /* abort request from scsi stack */ |
| 137 | BFA_IOIM_SM_ABORT_COMP = 8, /* abort from f/w */ |
| 138 | BFA_IOIM_SM_ABORT_DONE = 9, /* abort completion from f/w */ |
| 139 | BFA_IOIM_SM_QRESUME = 10, /* CQ space available to queue IO */ |
| 140 | BFA_IOIM_SM_SGALLOCED = 11, /* SG page allocation successful */ |
| 141 | BFA_IOIM_SM_SQRETRY = 12, /* sequence recovery retry */ |
| 142 | BFA_IOIM_SM_HCB = 13, /* bfa callback complete */ |
| 143 | BFA_IOIM_SM_CLEANUP = 14, /* IO cleanup from itnim */ |
| 144 | BFA_IOIM_SM_TMSTART = 15, /* IO cleanup from tskim */ |
| 145 | BFA_IOIM_SM_TMDONE = 16, /* IO cleanup from tskim */ |
| 146 | BFA_IOIM_SM_HWFAIL = 17, /* IOC h/w failure event */ |
| 147 | BFA_IOIM_SM_IOTOV = 18, /* ITN offline TOV */ |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 148 | BFA_IOIM_SM_LM_LUN_NOT_SUP = 19,/* lunmask lun not supported */ |
| 149 | BFA_IOIM_SM_LM_RPL_DC = 20, /* lunmask report-lun data changed */ |
| 150 | BFA_IOIM_SM_LM_LUN_NOT_RDY = 21,/* lunmask lun not ready */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 154 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 155 | * BFA TSKIM related definitions |
| 156 | */ |
| 157 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 158 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 159 | * task management completion handling |
| 160 | */ |
| 161 | #define bfa_tskim_qcomp(__tskim, __cbfn) do { \ |
| 162 | bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, __cbfn, (__tskim));\ |
| 163 | bfa_tskim_notify_comp(__tskim); \ |
| 164 | } while (0) |
| 165 | |
| 166 | #define bfa_tskim_notify_comp(__tskim) do { \ |
| 167 | if ((__tskim)->notify) \ |
| 168 | bfa_itnim_tskdone((__tskim)->itnim); \ |
| 169 | } while (0) |
| 170 | |
| 171 | |
| 172 | enum bfa_tskim_event { |
| 173 | BFA_TSKIM_SM_START = 1, /* TM command start */ |
| 174 | BFA_TSKIM_SM_DONE = 2, /* TM completion */ |
| 175 | BFA_TSKIM_SM_QRESUME = 3, /* resume after qfull */ |
| 176 | BFA_TSKIM_SM_HWFAIL = 5, /* IOC h/w failure event */ |
| 177 | BFA_TSKIM_SM_HCB = 6, /* BFA callback completion */ |
| 178 | BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */ |
| 179 | BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */ |
| 180 | BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */ |
| 181 | }; |
| 182 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 183 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 184 | * forward declaration for BFA ITNIM functions |
| 185 | */ |
| 186 | static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim); |
| 187 | static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim); |
| 188 | static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim); |
| 189 | static void bfa_itnim_cleanp_comp(void *itnim_cbarg); |
| 190 | static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim); |
| 191 | static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete); |
| 192 | static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete); |
| 193 | static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete); |
| 194 | static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim); |
| 195 | static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim); |
| 196 | static void bfa_itnim_iotov(void *itnim_arg); |
| 197 | static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim); |
| 198 | static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim); |
| 199 | static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim); |
| 200 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 201 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 202 | * forward declaration of ITNIM state machine |
| 203 | */ |
| 204 | static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, |
| 205 | enum bfa_itnim_event event); |
| 206 | static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim, |
| 207 | enum bfa_itnim_event event); |
| 208 | static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, |
| 209 | enum bfa_itnim_event event); |
| 210 | static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, |
| 211 | enum bfa_itnim_event event); |
| 212 | static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim, |
| 213 | enum bfa_itnim_event event); |
| 214 | static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, |
| 215 | enum bfa_itnim_event event); |
| 216 | static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, |
| 217 | enum bfa_itnim_event event); |
| 218 | static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, |
| 219 | enum bfa_itnim_event event); |
| 220 | static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, |
| 221 | enum bfa_itnim_event event); |
| 222 | static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, |
| 223 | enum bfa_itnim_event event); |
| 224 | static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, |
| 225 | enum bfa_itnim_event event); |
| 226 | static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, |
| 227 | enum bfa_itnim_event event); |
| 228 | static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, |
| 229 | enum bfa_itnim_event event); |
| 230 | static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, |
| 231 | enum bfa_itnim_event event); |
| 232 | static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, |
| 233 | enum bfa_itnim_event event); |
| 234 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 235 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 236 | * forward declaration for BFA IOIM functions |
| 237 | */ |
| 238 | static bfa_boolean_t bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim); |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 239 | static bfa_boolean_t bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 240 | static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim); |
| 241 | static void bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim); |
| 242 | static void __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete); |
| 243 | static void __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete); |
| 244 | static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete); |
| 245 | static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete); |
| 246 | static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete); |
| 247 | static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim); |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 248 | static void __bfa_cb_ioim_lm_lun_not_sup(void *cbarg, bfa_boolean_t complete); |
| 249 | static void __bfa_cb_ioim_lm_rpl_dc(void *cbarg, bfa_boolean_t complete); |
| 250 | static void __bfa_cb_ioim_lm_lun_not_rdy(void *cbarg, bfa_boolean_t complete); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 251 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 252 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 253 | * forward declaration of BFA IO state machine |
| 254 | */ |
| 255 | static void bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, |
| 256 | enum bfa_ioim_event event); |
| 257 | static void bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, |
| 258 | enum bfa_ioim_event event); |
| 259 | static void bfa_ioim_sm_active(struct bfa_ioim_s *ioim, |
| 260 | enum bfa_ioim_event event); |
| 261 | static void bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, |
| 262 | enum bfa_ioim_event event); |
| 263 | static void bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, |
| 264 | enum bfa_ioim_event event); |
| 265 | static void bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, |
| 266 | enum bfa_ioim_event event); |
| 267 | static void bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, |
| 268 | enum bfa_ioim_event event); |
| 269 | static void bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, |
| 270 | enum bfa_ioim_event event); |
| 271 | static void bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, |
| 272 | enum bfa_ioim_event event); |
| 273 | static void bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, |
| 274 | enum bfa_ioim_event event); |
| 275 | static void bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, |
| 276 | enum bfa_ioim_event event); |
| 277 | static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, |
| 278 | enum bfa_ioim_event event); |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 279 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 280 | * forward declaration for BFA TSKIM functions |
| 281 | */ |
| 282 | static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete); |
| 283 | static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete); |
| 284 | static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim, |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 285 | struct scsi_lun lun); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 286 | static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim); |
| 287 | static void bfa_tskim_cleanp_comp(void *tskim_cbarg); |
| 288 | static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim); |
| 289 | static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim); |
| 290 | static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim); |
| 291 | static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim); |
| 292 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 293 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 294 | * forward declaration of BFA TSKIM state machine |
| 295 | */ |
| 296 | static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, |
| 297 | enum bfa_tskim_event event); |
| 298 | static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim, |
| 299 | enum bfa_tskim_event event); |
| 300 | static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, |
| 301 | enum bfa_tskim_event event); |
| 302 | static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, |
| 303 | enum bfa_tskim_event event); |
| 304 | static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, |
| 305 | enum bfa_tskim_event event); |
| 306 | static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, |
| 307 | enum bfa_tskim_event event); |
| 308 | static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, |
| 309 | enum bfa_tskim_event event); |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 310 | /* |
Maggie Zhang | df0f193 | 2010-12-09 19:07:46 -0800 | [diff] [blame] | 311 | * BFA FCP Initiator Mode module |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 312 | */ |
| 313 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 314 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 315 | * Compute and return memory needed by FCP(im) module. |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 316 | */ |
| 317 | static void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 318 | bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 319 | { |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 320 | bfa_itnim_meminfo(cfg, km_len); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 321 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 322 | /* |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 323 | * IO memory |
| 324 | */ |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 325 | *km_len += cfg->fwcfg.num_ioim_reqs * |
| 326 | (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s)); |
| 327 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 328 | /* |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 329 | * task management command memory |
| 330 | */ |
| 331 | if (cfg->fwcfg.num_tskim_reqs < BFA_TSKIM_MIN) |
| 332 | cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN; |
| 333 | *km_len += cfg->fwcfg.num_tskim_reqs * sizeof(struct bfa_tskim_s); |
| 334 | } |
| 335 | |
| 336 | |
| 337 | static void |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 338 | bfa_fcpim_attach(struct bfa_fcp_mod_s *fcp, void *bfad, |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 339 | struct bfa_iocfc_cfg_s *cfg, struct bfa_pcidev_s *pcidev) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 340 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 341 | struct bfa_fcpim_s *fcpim = &fcp->fcpim; |
| 342 | struct bfa_s *bfa = fcp->bfa; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 343 | |
| 344 | bfa_trc(bfa, cfg->drvcfg.path_tov); |
| 345 | bfa_trc(bfa, cfg->fwcfg.num_rports); |
| 346 | bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs); |
| 347 | bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs); |
| 348 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 349 | fcpim->fcp = fcp; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 350 | fcpim->bfa = bfa; |
| 351 | fcpim->num_itnims = cfg->fwcfg.num_rports; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 352 | fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 353 | fcpim->path_tov = cfg->drvcfg.path_tov; |
| 354 | fcpim->delay_comp = cfg->drvcfg.delay_comp; |
| 355 | fcpim->profile_comp = NULL; |
| 356 | fcpim->profile_start = NULL; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 357 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 358 | bfa_itnim_attach(fcpim); |
| 359 | bfa_tskim_attach(fcpim); |
| 360 | bfa_ioim_attach(fcpim); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | static void |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 364 | bfa_fcpim_iocdisable(struct bfa_fcp_mod_s *fcp) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 365 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 366 | struct bfa_fcpim_s *fcpim = &fcp->fcpim; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 367 | struct bfa_itnim_s *itnim; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 368 | struct list_head *qe, *qen; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 369 | |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 370 | /* Enqueue unused ioim resources to free_q */ |
| 371 | list_splice_tail_init(&fcpim->tskim_unused_q, &fcpim->tskim_free_q); |
| 372 | |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 373 | list_for_each_safe(qe, qen, &fcpim->itnim_q) { |
| 374 | itnim = (struct bfa_itnim_s *) qe; |
| 375 | bfa_itnim_iocdisable(itnim); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | void |
| 380 | bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov) |
| 381 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 382 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 383 | |
| 384 | fcpim->path_tov = path_tov * 1000; |
| 385 | if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX) |
| 386 | fcpim->path_tov = BFA_FCPIM_PATHTOV_MAX; |
| 387 | } |
| 388 | |
| 389 | u16 |
| 390 | bfa_fcpim_path_tov_get(struct bfa_s *bfa) |
| 391 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 392 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 393 | |
Jing Huang | f8ceafd | 2009-09-25 12:29:54 -0700 | [diff] [blame] | 394 | return fcpim->path_tov / 1000; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 395 | } |
| 396 | |
Krishna Gudipati | 6013806 | 2011-06-24 20:25:15 -0700 | [diff] [blame] | 397 | #define bfa_fcpim_add_iostats(__l, __r, __stats) \ |
| 398 | (__l->__stats += __r->__stats) |
| 399 | |
| 400 | void |
| 401 | bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *lstats, |
| 402 | struct bfa_itnim_iostats_s *rstats) |
| 403 | { |
| 404 | bfa_fcpim_add_iostats(lstats, rstats, total_ios); |
| 405 | bfa_fcpim_add_iostats(lstats, rstats, qresumes); |
| 406 | bfa_fcpim_add_iostats(lstats, rstats, no_iotags); |
| 407 | bfa_fcpim_add_iostats(lstats, rstats, io_aborts); |
| 408 | bfa_fcpim_add_iostats(lstats, rstats, no_tskims); |
| 409 | bfa_fcpim_add_iostats(lstats, rstats, iocomp_ok); |
| 410 | bfa_fcpim_add_iostats(lstats, rstats, iocomp_underrun); |
| 411 | bfa_fcpim_add_iostats(lstats, rstats, iocomp_overrun); |
| 412 | bfa_fcpim_add_iostats(lstats, rstats, iocomp_aborted); |
| 413 | bfa_fcpim_add_iostats(lstats, rstats, iocomp_timedout); |
| 414 | bfa_fcpim_add_iostats(lstats, rstats, iocom_nexus_abort); |
| 415 | bfa_fcpim_add_iostats(lstats, rstats, iocom_proto_err); |
| 416 | bfa_fcpim_add_iostats(lstats, rstats, iocom_dif_err); |
| 417 | bfa_fcpim_add_iostats(lstats, rstats, iocom_sqer_needed); |
| 418 | bfa_fcpim_add_iostats(lstats, rstats, iocom_res_free); |
| 419 | bfa_fcpim_add_iostats(lstats, rstats, iocom_hostabrts); |
| 420 | bfa_fcpim_add_iostats(lstats, rstats, iocom_utags); |
| 421 | bfa_fcpim_add_iostats(lstats, rstats, io_cleanups); |
| 422 | bfa_fcpim_add_iostats(lstats, rstats, io_tmaborts); |
| 423 | bfa_fcpim_add_iostats(lstats, rstats, onlines); |
| 424 | bfa_fcpim_add_iostats(lstats, rstats, offlines); |
| 425 | bfa_fcpim_add_iostats(lstats, rstats, creates); |
| 426 | bfa_fcpim_add_iostats(lstats, rstats, deletes); |
| 427 | bfa_fcpim_add_iostats(lstats, rstats, create_comps); |
| 428 | bfa_fcpim_add_iostats(lstats, rstats, delete_comps); |
| 429 | bfa_fcpim_add_iostats(lstats, rstats, sler_events); |
| 430 | bfa_fcpim_add_iostats(lstats, rstats, fw_create); |
| 431 | bfa_fcpim_add_iostats(lstats, rstats, fw_delete); |
| 432 | bfa_fcpim_add_iostats(lstats, rstats, ioc_disabled); |
| 433 | bfa_fcpim_add_iostats(lstats, rstats, cleanup_comps); |
| 434 | bfa_fcpim_add_iostats(lstats, rstats, tm_cmnds); |
| 435 | bfa_fcpim_add_iostats(lstats, rstats, tm_fw_rsps); |
| 436 | bfa_fcpim_add_iostats(lstats, rstats, tm_success); |
| 437 | bfa_fcpim_add_iostats(lstats, rstats, tm_failures); |
| 438 | bfa_fcpim_add_iostats(lstats, rstats, tm_io_comps); |
| 439 | bfa_fcpim_add_iostats(lstats, rstats, tm_qresumes); |
| 440 | bfa_fcpim_add_iostats(lstats, rstats, tm_iocdowns); |
| 441 | bfa_fcpim_add_iostats(lstats, rstats, tm_cleanups); |
| 442 | bfa_fcpim_add_iostats(lstats, rstats, tm_cleanup_comps); |
| 443 | bfa_fcpim_add_iostats(lstats, rstats, io_comps); |
| 444 | bfa_fcpim_add_iostats(lstats, rstats, input_reqs); |
| 445 | bfa_fcpim_add_iostats(lstats, rstats, output_reqs); |
| 446 | bfa_fcpim_add_iostats(lstats, rstats, rd_throughput); |
| 447 | bfa_fcpim_add_iostats(lstats, rstats, wr_throughput); |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 448 | bfa_fcpim_add_iostats(lstats, rstats, lm_lun_across_sg); |
| 449 | bfa_fcpim_add_iostats(lstats, rstats, lm_lun_not_sup); |
| 450 | bfa_fcpim_add_iostats(lstats, rstats, lm_rpl_data_changed); |
| 451 | bfa_fcpim_add_iostats(lstats, rstats, lm_wire_residue_changed); |
| 452 | bfa_fcpim_add_iostats(lstats, rstats, lm_small_buf_addresidue); |
| 453 | bfa_fcpim_add_iostats(lstats, rstats, lm_lun_not_rdy); |
Krishna Gudipati | 6013806 | 2011-06-24 20:25:15 -0700 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | bfa_status_t |
| 457 | bfa_fcpim_port_iostats(struct bfa_s *bfa, |
| 458 | struct bfa_itnim_iostats_s *stats, u8 lp_tag) |
| 459 | { |
| 460 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
| 461 | struct list_head *qe, *qen; |
| 462 | struct bfa_itnim_s *itnim; |
| 463 | |
| 464 | /* accumulate IO stats from itnim */ |
| 465 | memset(stats, 0, sizeof(struct bfa_itnim_iostats_s)); |
| 466 | list_for_each_safe(qe, qen, &fcpim->itnim_q) { |
| 467 | itnim = (struct bfa_itnim_s *) qe; |
| 468 | if (itnim->rport->rport_info.lp_tag != lp_tag) |
| 469 | continue; |
| 470 | bfa_fcpim_add_stats(stats, &(itnim->stats)); |
| 471 | } |
| 472 | return BFA_STATUS_OK; |
| 473 | } |
| 474 | |
Krishna Gudipati | 42a8e6e | 2011-07-20 17:01:52 -0700 | [diff] [blame] | 475 | void |
| 476 | bfa_ioim_profile_comp(struct bfa_ioim_s *ioim) |
| 477 | { |
| 478 | struct bfa_itnim_latency_s *io_lat = |
| 479 | &(ioim->itnim->ioprofile.io_latency); |
| 480 | u32 val, idx; |
| 481 | |
| 482 | val = (u32)(jiffies - ioim->start_time); |
| 483 | idx = bfa_ioim_get_index(scsi_bufflen((struct scsi_cmnd *)ioim->dio)); |
| 484 | bfa_itnim_ioprofile_update(ioim->itnim, idx); |
| 485 | |
| 486 | io_lat->count[idx]++; |
| 487 | io_lat->min[idx] = (io_lat->min[idx] < val) ? io_lat->min[idx] : val; |
| 488 | io_lat->max[idx] = (io_lat->max[idx] > val) ? io_lat->max[idx] : val; |
| 489 | io_lat->avg[idx] += val; |
| 490 | } |
| 491 | |
| 492 | void |
| 493 | bfa_ioim_profile_start(struct bfa_ioim_s *ioim) |
| 494 | { |
| 495 | ioim->start_time = jiffies; |
| 496 | } |
| 497 | |
| 498 | bfa_status_t |
| 499 | bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time) |
| 500 | { |
| 501 | struct bfa_itnim_s *itnim; |
| 502 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
| 503 | struct list_head *qe, *qen; |
| 504 | |
| 505 | /* accumulate IO stats from itnim */ |
| 506 | list_for_each_safe(qe, qen, &fcpim->itnim_q) { |
| 507 | itnim = (struct bfa_itnim_s *) qe; |
| 508 | bfa_itnim_clear_stats(itnim); |
| 509 | } |
| 510 | fcpim->io_profile = BFA_TRUE; |
| 511 | fcpim->io_profile_start_time = time; |
| 512 | fcpim->profile_comp = bfa_ioim_profile_comp; |
| 513 | fcpim->profile_start = bfa_ioim_profile_start; |
| 514 | return BFA_STATUS_OK; |
| 515 | } |
| 516 | |
| 517 | bfa_status_t |
| 518 | bfa_fcpim_profile_off(struct bfa_s *bfa) |
| 519 | { |
| 520 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
| 521 | fcpim->io_profile = BFA_FALSE; |
| 522 | fcpim->io_profile_start_time = 0; |
| 523 | fcpim->profile_comp = NULL; |
| 524 | fcpim->profile_start = NULL; |
| 525 | return BFA_STATUS_OK; |
| 526 | } |
| 527 | |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 528 | u16 |
| 529 | bfa_fcpim_qdepth_get(struct bfa_s *bfa) |
| 530 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 531 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 532 | |
Jing Huang | f8ceafd | 2009-09-25 12:29:54 -0700 | [diff] [blame] | 533 | return fcpim->q_depth; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 534 | } |
| 535 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 536 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 537 | * BFA ITNIM module state machine functions |
| 538 | */ |
| 539 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 540 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 541 | * Beginning/unallocated state - no events expected. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 542 | */ |
| 543 | static void |
| 544 | bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 545 | { |
| 546 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 547 | bfa_trc(itnim->bfa, event); |
| 548 | |
| 549 | switch (event) { |
| 550 | case BFA_ITNIM_SM_CREATE: |
| 551 | bfa_sm_set_state(itnim, bfa_itnim_sm_created); |
| 552 | itnim->is_online = BFA_FALSE; |
| 553 | bfa_fcpim_additn(itnim); |
| 554 | break; |
| 555 | |
| 556 | default: |
| 557 | bfa_sm_fault(itnim->bfa, event); |
| 558 | } |
| 559 | } |
| 560 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 561 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 562 | * Beginning state, only online event expected. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 563 | */ |
| 564 | static void |
| 565 | bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 566 | { |
| 567 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 568 | bfa_trc(itnim->bfa, event); |
| 569 | |
| 570 | switch (event) { |
| 571 | case BFA_ITNIM_SM_ONLINE: |
| 572 | if (bfa_itnim_send_fwcreate(itnim)) |
| 573 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); |
| 574 | else |
| 575 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); |
| 576 | break; |
| 577 | |
| 578 | case BFA_ITNIM_SM_DELETE: |
| 579 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 580 | bfa_fcpim_delitn(itnim); |
| 581 | break; |
| 582 | |
| 583 | case BFA_ITNIM_SM_HWFAIL: |
| 584 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 585 | break; |
| 586 | |
| 587 | default: |
| 588 | bfa_sm_fault(itnim->bfa, event); |
| 589 | } |
| 590 | } |
| 591 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 592 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 593 | * Waiting for itnim create response from firmware. |
| 594 | */ |
| 595 | static void |
| 596 | bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 597 | { |
| 598 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 599 | bfa_trc(itnim->bfa, event); |
| 600 | |
| 601 | switch (event) { |
| 602 | case BFA_ITNIM_SM_FWRSP: |
| 603 | bfa_sm_set_state(itnim, bfa_itnim_sm_online); |
| 604 | itnim->is_online = BFA_TRUE; |
| 605 | bfa_itnim_iotov_online(itnim); |
| 606 | bfa_itnim_online_cb(itnim); |
| 607 | break; |
| 608 | |
| 609 | case BFA_ITNIM_SM_DELETE: |
| 610 | bfa_sm_set_state(itnim, bfa_itnim_sm_delete_pending); |
| 611 | break; |
| 612 | |
| 613 | case BFA_ITNIM_SM_OFFLINE: |
| 614 | if (bfa_itnim_send_fwdelete(itnim)) |
| 615 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); |
| 616 | else |
| 617 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); |
| 618 | break; |
| 619 | |
| 620 | case BFA_ITNIM_SM_HWFAIL: |
| 621 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 622 | break; |
| 623 | |
| 624 | default: |
| 625 | bfa_sm_fault(itnim->bfa, event); |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | static void |
| 630 | bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, |
| 631 | enum bfa_itnim_event event) |
| 632 | { |
| 633 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 634 | bfa_trc(itnim->bfa, event); |
| 635 | |
| 636 | switch (event) { |
| 637 | case BFA_ITNIM_SM_QRESUME: |
| 638 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); |
| 639 | bfa_itnim_send_fwcreate(itnim); |
| 640 | break; |
| 641 | |
| 642 | case BFA_ITNIM_SM_DELETE: |
| 643 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 644 | bfa_reqq_wcancel(&itnim->reqq_wait); |
| 645 | bfa_fcpim_delitn(itnim); |
| 646 | break; |
| 647 | |
| 648 | case BFA_ITNIM_SM_OFFLINE: |
| 649 | bfa_sm_set_state(itnim, bfa_itnim_sm_offline); |
| 650 | bfa_reqq_wcancel(&itnim->reqq_wait); |
| 651 | bfa_itnim_offline_cb(itnim); |
| 652 | break; |
| 653 | |
| 654 | case BFA_ITNIM_SM_HWFAIL: |
| 655 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 656 | bfa_reqq_wcancel(&itnim->reqq_wait); |
| 657 | break; |
| 658 | |
| 659 | default: |
| 660 | bfa_sm_fault(itnim->bfa, event); |
| 661 | } |
| 662 | } |
| 663 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 664 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 665 | * Waiting for itnim create response from firmware, a delete is pending. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 666 | */ |
| 667 | static void |
| 668 | bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, |
| 669 | enum bfa_itnim_event event) |
| 670 | { |
| 671 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 672 | bfa_trc(itnim->bfa, event); |
| 673 | |
| 674 | switch (event) { |
| 675 | case BFA_ITNIM_SM_FWRSP: |
| 676 | if (bfa_itnim_send_fwdelete(itnim)) |
| 677 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); |
| 678 | else |
| 679 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); |
| 680 | break; |
| 681 | |
| 682 | case BFA_ITNIM_SM_HWFAIL: |
| 683 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 684 | bfa_fcpim_delitn(itnim); |
| 685 | break; |
| 686 | |
| 687 | default: |
| 688 | bfa_sm_fault(itnim->bfa, event); |
| 689 | } |
| 690 | } |
| 691 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 692 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 693 | * Online state - normal parking state. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 694 | */ |
| 695 | static void |
| 696 | bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 697 | { |
| 698 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 699 | bfa_trc(itnim->bfa, event); |
| 700 | |
| 701 | switch (event) { |
| 702 | case BFA_ITNIM_SM_OFFLINE: |
| 703 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); |
| 704 | itnim->is_online = BFA_FALSE; |
| 705 | bfa_itnim_iotov_start(itnim); |
| 706 | bfa_itnim_cleanup(itnim); |
| 707 | break; |
| 708 | |
| 709 | case BFA_ITNIM_SM_DELETE: |
| 710 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); |
| 711 | itnim->is_online = BFA_FALSE; |
| 712 | bfa_itnim_cleanup(itnim); |
| 713 | break; |
| 714 | |
| 715 | case BFA_ITNIM_SM_SLER: |
| 716 | bfa_sm_set_state(itnim, bfa_itnim_sm_sler); |
| 717 | itnim->is_online = BFA_FALSE; |
| 718 | bfa_itnim_iotov_start(itnim); |
| 719 | bfa_itnim_sler_cb(itnim); |
| 720 | break; |
| 721 | |
| 722 | case BFA_ITNIM_SM_HWFAIL: |
| 723 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 724 | itnim->is_online = BFA_FALSE; |
| 725 | bfa_itnim_iotov_start(itnim); |
| 726 | bfa_itnim_iocdisable_cleanup(itnim); |
| 727 | break; |
| 728 | |
| 729 | default: |
| 730 | bfa_sm_fault(itnim->bfa, event); |
| 731 | } |
| 732 | } |
| 733 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 734 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 735 | * Second level error recovery need. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 736 | */ |
| 737 | static void |
| 738 | bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 739 | { |
| 740 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 741 | bfa_trc(itnim->bfa, event); |
| 742 | |
| 743 | switch (event) { |
| 744 | case BFA_ITNIM_SM_OFFLINE: |
| 745 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); |
| 746 | bfa_itnim_cleanup(itnim); |
| 747 | break; |
| 748 | |
| 749 | case BFA_ITNIM_SM_DELETE: |
| 750 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); |
| 751 | bfa_itnim_cleanup(itnim); |
| 752 | bfa_itnim_iotov_delete(itnim); |
| 753 | break; |
| 754 | |
| 755 | case BFA_ITNIM_SM_HWFAIL: |
| 756 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 757 | bfa_itnim_iocdisable_cleanup(itnim); |
| 758 | break; |
| 759 | |
| 760 | default: |
| 761 | bfa_sm_fault(itnim->bfa, event); |
| 762 | } |
| 763 | } |
| 764 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 765 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 766 | * Going offline. Waiting for active IO cleanup. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 767 | */ |
| 768 | static void |
| 769 | bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, |
| 770 | enum bfa_itnim_event event) |
| 771 | { |
| 772 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 773 | bfa_trc(itnim->bfa, event); |
| 774 | |
| 775 | switch (event) { |
| 776 | case BFA_ITNIM_SM_CLEANUP: |
| 777 | if (bfa_itnim_send_fwdelete(itnim)) |
| 778 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); |
| 779 | else |
| 780 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); |
| 781 | break; |
| 782 | |
| 783 | case BFA_ITNIM_SM_DELETE: |
| 784 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); |
| 785 | bfa_itnim_iotov_delete(itnim); |
| 786 | break; |
| 787 | |
| 788 | case BFA_ITNIM_SM_HWFAIL: |
| 789 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 790 | bfa_itnim_iocdisable_cleanup(itnim); |
| 791 | bfa_itnim_offline_cb(itnim); |
| 792 | break; |
| 793 | |
| 794 | case BFA_ITNIM_SM_SLER: |
| 795 | break; |
| 796 | |
| 797 | default: |
| 798 | bfa_sm_fault(itnim->bfa, event); |
| 799 | } |
| 800 | } |
| 801 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 802 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 803 | * Deleting itnim. Waiting for active IO cleanup. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 804 | */ |
| 805 | static void |
| 806 | bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, |
| 807 | enum bfa_itnim_event event) |
| 808 | { |
| 809 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 810 | bfa_trc(itnim->bfa, event); |
| 811 | |
| 812 | switch (event) { |
| 813 | case BFA_ITNIM_SM_CLEANUP: |
| 814 | if (bfa_itnim_send_fwdelete(itnim)) |
| 815 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); |
| 816 | else |
| 817 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); |
| 818 | break; |
| 819 | |
| 820 | case BFA_ITNIM_SM_HWFAIL: |
| 821 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 822 | bfa_itnim_iocdisable_cleanup(itnim); |
| 823 | break; |
| 824 | |
| 825 | default: |
| 826 | bfa_sm_fault(itnim->bfa, event); |
| 827 | } |
| 828 | } |
| 829 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 830 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 831 | * Rport offline. Fimrware itnim is being deleted - awaiting f/w response. |
| 832 | */ |
| 833 | static void |
| 834 | bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 835 | { |
| 836 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 837 | bfa_trc(itnim->bfa, event); |
| 838 | |
| 839 | switch (event) { |
| 840 | case BFA_ITNIM_SM_FWRSP: |
| 841 | bfa_sm_set_state(itnim, bfa_itnim_sm_offline); |
| 842 | bfa_itnim_offline_cb(itnim); |
| 843 | break; |
| 844 | |
| 845 | case BFA_ITNIM_SM_DELETE: |
| 846 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); |
| 847 | break; |
| 848 | |
| 849 | case BFA_ITNIM_SM_HWFAIL: |
| 850 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 851 | bfa_itnim_offline_cb(itnim); |
| 852 | break; |
| 853 | |
| 854 | default: |
| 855 | bfa_sm_fault(itnim->bfa, event); |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | static void |
| 860 | bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, |
| 861 | enum bfa_itnim_event event) |
| 862 | { |
| 863 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 864 | bfa_trc(itnim->bfa, event); |
| 865 | |
| 866 | switch (event) { |
| 867 | case BFA_ITNIM_SM_QRESUME: |
| 868 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); |
| 869 | bfa_itnim_send_fwdelete(itnim); |
| 870 | break; |
| 871 | |
| 872 | case BFA_ITNIM_SM_DELETE: |
| 873 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); |
| 874 | break; |
| 875 | |
| 876 | case BFA_ITNIM_SM_HWFAIL: |
| 877 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 878 | bfa_reqq_wcancel(&itnim->reqq_wait); |
| 879 | bfa_itnim_offline_cb(itnim); |
| 880 | break; |
| 881 | |
| 882 | default: |
| 883 | bfa_sm_fault(itnim->bfa, event); |
| 884 | } |
| 885 | } |
| 886 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 887 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 888 | * Offline state. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 889 | */ |
| 890 | static void |
| 891 | bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 892 | { |
| 893 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 894 | bfa_trc(itnim->bfa, event); |
| 895 | |
| 896 | switch (event) { |
| 897 | case BFA_ITNIM_SM_DELETE: |
| 898 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 899 | bfa_itnim_iotov_delete(itnim); |
| 900 | bfa_fcpim_delitn(itnim); |
| 901 | break; |
| 902 | |
| 903 | case BFA_ITNIM_SM_ONLINE: |
| 904 | if (bfa_itnim_send_fwcreate(itnim)) |
| 905 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); |
| 906 | else |
| 907 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); |
| 908 | break; |
| 909 | |
| 910 | case BFA_ITNIM_SM_HWFAIL: |
| 911 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); |
| 912 | break; |
| 913 | |
| 914 | default: |
| 915 | bfa_sm_fault(itnim->bfa, event); |
| 916 | } |
| 917 | } |
| 918 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 919 | static void |
| 920 | bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, |
| 921 | enum bfa_itnim_event event) |
| 922 | { |
| 923 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 924 | bfa_trc(itnim->bfa, event); |
| 925 | |
| 926 | switch (event) { |
| 927 | case BFA_ITNIM_SM_DELETE: |
| 928 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 929 | bfa_itnim_iotov_delete(itnim); |
| 930 | bfa_fcpim_delitn(itnim); |
| 931 | break; |
| 932 | |
| 933 | case BFA_ITNIM_SM_OFFLINE: |
| 934 | bfa_itnim_offline_cb(itnim); |
| 935 | break; |
| 936 | |
| 937 | case BFA_ITNIM_SM_ONLINE: |
| 938 | if (bfa_itnim_send_fwcreate(itnim)) |
| 939 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); |
| 940 | else |
| 941 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); |
| 942 | break; |
| 943 | |
| 944 | case BFA_ITNIM_SM_HWFAIL: |
| 945 | break; |
| 946 | |
| 947 | default: |
| 948 | bfa_sm_fault(itnim->bfa, event); |
| 949 | } |
| 950 | } |
| 951 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 952 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 953 | * Itnim is deleted, waiting for firmware response to delete. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 954 | */ |
| 955 | static void |
| 956 | bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) |
| 957 | { |
| 958 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 959 | bfa_trc(itnim->bfa, event); |
| 960 | |
| 961 | switch (event) { |
| 962 | case BFA_ITNIM_SM_FWRSP: |
| 963 | case BFA_ITNIM_SM_HWFAIL: |
| 964 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 965 | bfa_fcpim_delitn(itnim); |
| 966 | break; |
| 967 | |
| 968 | default: |
| 969 | bfa_sm_fault(itnim->bfa, event); |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | static void |
| 974 | bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, |
| 975 | enum bfa_itnim_event event) |
| 976 | { |
| 977 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); |
| 978 | bfa_trc(itnim->bfa, event); |
| 979 | |
| 980 | switch (event) { |
| 981 | case BFA_ITNIM_SM_QRESUME: |
| 982 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); |
| 983 | bfa_itnim_send_fwdelete(itnim); |
| 984 | break; |
| 985 | |
| 986 | case BFA_ITNIM_SM_HWFAIL: |
| 987 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 988 | bfa_reqq_wcancel(&itnim->reqq_wait); |
| 989 | bfa_fcpim_delitn(itnim); |
| 990 | break; |
| 991 | |
| 992 | default: |
| 993 | bfa_sm_fault(itnim->bfa, event); |
| 994 | } |
| 995 | } |
| 996 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 997 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 998 | * Initiate cleanup of all IOs on an IOC failure. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 999 | */ |
| 1000 | static void |
| 1001 | bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim) |
| 1002 | { |
| 1003 | struct bfa_tskim_s *tskim; |
| 1004 | struct bfa_ioim_s *ioim; |
| 1005 | struct list_head *qe, *qen; |
| 1006 | |
| 1007 | list_for_each_safe(qe, qen, &itnim->tsk_q) { |
| 1008 | tskim = (struct bfa_tskim_s *) qe; |
| 1009 | bfa_tskim_iocdisable(tskim); |
| 1010 | } |
| 1011 | |
| 1012 | list_for_each_safe(qe, qen, &itnim->io_q) { |
| 1013 | ioim = (struct bfa_ioim_s *) qe; |
| 1014 | bfa_ioim_iocdisable(ioim); |
| 1015 | } |
| 1016 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1017 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1018 | * For IO request in pending queue, we pretend an early timeout. |
| 1019 | */ |
| 1020 | list_for_each_safe(qe, qen, &itnim->pending_q) { |
| 1021 | ioim = (struct bfa_ioim_s *) qe; |
| 1022 | bfa_ioim_tov(ioim); |
| 1023 | } |
| 1024 | |
| 1025 | list_for_each_safe(qe, qen, &itnim->io_cleanup_q) { |
| 1026 | ioim = (struct bfa_ioim_s *) qe; |
| 1027 | bfa_ioim_iocdisable(ioim); |
| 1028 | } |
| 1029 | } |
| 1030 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1031 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1032 | * IO cleanup completion |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1033 | */ |
| 1034 | static void |
| 1035 | bfa_itnim_cleanp_comp(void *itnim_cbarg) |
| 1036 | { |
| 1037 | struct bfa_itnim_s *itnim = itnim_cbarg; |
| 1038 | |
| 1039 | bfa_stats(itnim, cleanup_comps); |
| 1040 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_CLEANUP); |
| 1041 | } |
| 1042 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1043 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1044 | * Initiate cleanup of all IOs. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1045 | */ |
| 1046 | static void |
| 1047 | bfa_itnim_cleanup(struct bfa_itnim_s *itnim) |
| 1048 | { |
| 1049 | struct bfa_ioim_s *ioim; |
| 1050 | struct bfa_tskim_s *tskim; |
| 1051 | struct list_head *qe, *qen; |
| 1052 | |
| 1053 | bfa_wc_init(&itnim->wc, bfa_itnim_cleanp_comp, itnim); |
| 1054 | |
| 1055 | list_for_each_safe(qe, qen, &itnim->io_q) { |
| 1056 | ioim = (struct bfa_ioim_s *) qe; |
| 1057 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1058 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1059 | * Move IO to a cleanup queue from active queue so that a later |
| 1060 | * TM will not pickup this IO. |
| 1061 | */ |
| 1062 | list_del(&ioim->qe); |
| 1063 | list_add_tail(&ioim->qe, &itnim->io_cleanup_q); |
| 1064 | |
| 1065 | bfa_wc_up(&itnim->wc); |
| 1066 | bfa_ioim_cleanup(ioim); |
| 1067 | } |
| 1068 | |
| 1069 | list_for_each_safe(qe, qen, &itnim->tsk_q) { |
| 1070 | tskim = (struct bfa_tskim_s *) qe; |
| 1071 | bfa_wc_up(&itnim->wc); |
| 1072 | bfa_tskim_cleanup(tskim); |
| 1073 | } |
| 1074 | |
| 1075 | bfa_wc_wait(&itnim->wc); |
| 1076 | } |
| 1077 | |
| 1078 | static void |
| 1079 | __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete) |
| 1080 | { |
| 1081 | struct bfa_itnim_s *itnim = cbarg; |
| 1082 | |
| 1083 | if (complete) |
| 1084 | bfa_cb_itnim_online(itnim->ditn); |
| 1085 | } |
| 1086 | |
| 1087 | static void |
| 1088 | __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete) |
| 1089 | { |
| 1090 | struct bfa_itnim_s *itnim = cbarg; |
| 1091 | |
| 1092 | if (complete) |
| 1093 | bfa_cb_itnim_offline(itnim->ditn); |
| 1094 | } |
| 1095 | |
| 1096 | static void |
| 1097 | __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete) |
| 1098 | { |
| 1099 | struct bfa_itnim_s *itnim = cbarg; |
| 1100 | |
| 1101 | if (complete) |
| 1102 | bfa_cb_itnim_sler(itnim->ditn); |
| 1103 | } |
| 1104 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1105 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1106 | * Call to resume any I/O requests waiting for room in request queue. |
| 1107 | */ |
| 1108 | static void |
| 1109 | bfa_itnim_qresume(void *cbarg) |
| 1110 | { |
| 1111 | struct bfa_itnim_s *itnim = cbarg; |
| 1112 | |
| 1113 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_QRESUME); |
| 1114 | } |
| 1115 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1116 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1117 | * bfa_itnim_public |
| 1118 | */ |
| 1119 | |
| 1120 | void |
| 1121 | bfa_itnim_iodone(struct bfa_itnim_s *itnim) |
| 1122 | { |
| 1123 | bfa_wc_down(&itnim->wc); |
| 1124 | } |
| 1125 | |
| 1126 | void |
| 1127 | bfa_itnim_tskdone(struct bfa_itnim_s *itnim) |
| 1128 | { |
| 1129 | bfa_wc_down(&itnim->wc); |
| 1130 | } |
| 1131 | |
| 1132 | void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 1133 | bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1134 | { |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1135 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1136 | * ITN memory |
| 1137 | */ |
| 1138 | *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itnim_s); |
| 1139 | } |
| 1140 | |
| 1141 | void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 1142 | bfa_itnim_attach(struct bfa_fcpim_s *fcpim) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1143 | { |
| 1144 | struct bfa_s *bfa = fcpim->bfa; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 1145 | struct bfa_fcp_mod_s *fcp = fcpim->fcp; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1146 | struct bfa_itnim_s *itnim; |
| 1147 | int i, j; |
| 1148 | |
| 1149 | INIT_LIST_HEAD(&fcpim->itnim_q); |
| 1150 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 1151 | itnim = (struct bfa_itnim_s *) bfa_mem_kva_curp(fcp); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1152 | fcpim->itnim_arr = itnim; |
| 1153 | |
| 1154 | for (i = 0; i < fcpim->num_itnims; i++, itnim++) { |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 1155 | memset(itnim, 0, sizeof(struct bfa_itnim_s)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1156 | itnim->bfa = bfa; |
| 1157 | itnim->fcpim = fcpim; |
| 1158 | itnim->reqq = BFA_REQQ_QOS_LO; |
| 1159 | itnim->rport = BFA_RPORT_FROM_TAG(bfa, i); |
| 1160 | itnim->iotov_active = BFA_FALSE; |
| 1161 | bfa_reqq_winit(&itnim->reqq_wait, bfa_itnim_qresume, itnim); |
| 1162 | |
| 1163 | INIT_LIST_HEAD(&itnim->io_q); |
| 1164 | INIT_LIST_HEAD(&itnim->io_cleanup_q); |
| 1165 | INIT_LIST_HEAD(&itnim->pending_q); |
| 1166 | INIT_LIST_HEAD(&itnim->tsk_q); |
| 1167 | INIT_LIST_HEAD(&itnim->delay_comp_q); |
| 1168 | for (j = 0; j < BFA_IOBUCKET_MAX; j++) |
| 1169 | itnim->ioprofile.io_latency.min[j] = ~0; |
| 1170 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); |
| 1171 | } |
| 1172 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 1173 | bfa_mem_kva_curp(fcp) = (u8 *) itnim; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1174 | } |
| 1175 | |
| 1176 | void |
| 1177 | bfa_itnim_iocdisable(struct bfa_itnim_s *itnim) |
| 1178 | { |
| 1179 | bfa_stats(itnim, ioc_disabled); |
| 1180 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_HWFAIL); |
| 1181 | } |
| 1182 | |
| 1183 | static bfa_boolean_t |
| 1184 | bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim) |
| 1185 | { |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1186 | struct bfi_itn_create_req_s *m; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1187 | |
| 1188 | itnim->msg_no++; |
| 1189 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1190 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1191 | * check for room in queue to send request now |
| 1192 | */ |
| 1193 | m = bfa_reqq_next(itnim->bfa, itnim->reqq); |
| 1194 | if (!m) { |
| 1195 | bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); |
| 1196 | return BFA_FALSE; |
| 1197 | } |
| 1198 | |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1199 | bfi_h2i_set(m->mh, BFI_MC_ITN, BFI_ITN_H2I_CREATE_REQ, |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 1200 | bfa_fn_lpu(itnim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1201 | m->fw_handle = itnim->rport->fw_handle; |
| 1202 | m->class = FC_CLASS_3; |
| 1203 | m->seq_rec = itnim->seq_rec; |
| 1204 | m->msg_no = itnim->msg_no; |
| 1205 | bfa_stats(itnim, fw_create); |
| 1206 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1207 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1208 | * queue I/O message to firmware |
| 1209 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 1210 | bfa_reqq_produce(itnim->bfa, itnim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1211 | return BFA_TRUE; |
| 1212 | } |
| 1213 | |
| 1214 | static bfa_boolean_t |
| 1215 | bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim) |
| 1216 | { |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1217 | struct bfi_itn_delete_req_s *m; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1218 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1219 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1220 | * check for room in queue to send request now |
| 1221 | */ |
| 1222 | m = bfa_reqq_next(itnim->bfa, itnim->reqq); |
| 1223 | if (!m) { |
| 1224 | bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); |
| 1225 | return BFA_FALSE; |
| 1226 | } |
| 1227 | |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1228 | bfi_h2i_set(m->mh, BFI_MC_ITN, BFI_ITN_H2I_DELETE_REQ, |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 1229 | bfa_fn_lpu(itnim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1230 | m->fw_handle = itnim->rport->fw_handle; |
| 1231 | bfa_stats(itnim, fw_delete); |
| 1232 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1233 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1234 | * queue I/O message to firmware |
| 1235 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 1236 | bfa_reqq_produce(itnim->bfa, itnim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1237 | return BFA_TRUE; |
| 1238 | } |
| 1239 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1240 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1241 | * Cleanup all pending failed inflight requests. |
| 1242 | */ |
| 1243 | static void |
| 1244 | bfa_itnim_delayed_comp(struct bfa_itnim_s *itnim, bfa_boolean_t iotov) |
| 1245 | { |
| 1246 | struct bfa_ioim_s *ioim; |
| 1247 | struct list_head *qe, *qen; |
| 1248 | |
| 1249 | list_for_each_safe(qe, qen, &itnim->delay_comp_q) { |
| 1250 | ioim = (struct bfa_ioim_s *)qe; |
| 1251 | bfa_ioim_delayed_comp(ioim, iotov); |
| 1252 | } |
| 1253 | } |
| 1254 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1255 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1256 | * Start all pending IO requests. |
| 1257 | */ |
| 1258 | static void |
| 1259 | bfa_itnim_iotov_online(struct bfa_itnim_s *itnim) |
| 1260 | { |
| 1261 | struct bfa_ioim_s *ioim; |
| 1262 | |
| 1263 | bfa_itnim_iotov_stop(itnim); |
| 1264 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1265 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1266 | * Abort all inflight IO requests in the queue |
| 1267 | */ |
| 1268 | bfa_itnim_delayed_comp(itnim, BFA_FALSE); |
| 1269 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1270 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1271 | * Start all pending IO requests. |
| 1272 | */ |
| 1273 | while (!list_empty(&itnim->pending_q)) { |
| 1274 | bfa_q_deq(&itnim->pending_q, &ioim); |
| 1275 | list_add_tail(&ioim->qe, &itnim->io_q); |
| 1276 | bfa_ioim_start(ioim); |
| 1277 | } |
| 1278 | } |
| 1279 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1280 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1281 | * Fail all pending IO requests |
| 1282 | */ |
| 1283 | static void |
| 1284 | bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim) |
| 1285 | { |
| 1286 | struct bfa_ioim_s *ioim; |
| 1287 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1288 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1289 | * Fail all inflight IO requests in the queue |
| 1290 | */ |
| 1291 | bfa_itnim_delayed_comp(itnim, BFA_TRUE); |
| 1292 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1293 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1294 | * Fail any pending IO requests. |
| 1295 | */ |
| 1296 | while (!list_empty(&itnim->pending_q)) { |
| 1297 | bfa_q_deq(&itnim->pending_q, &ioim); |
| 1298 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); |
| 1299 | bfa_ioim_tov(ioim); |
| 1300 | } |
| 1301 | } |
| 1302 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1303 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1304 | * IO TOV timer callback. Fail any pending IO requests. |
| 1305 | */ |
| 1306 | static void |
| 1307 | bfa_itnim_iotov(void *itnim_arg) |
| 1308 | { |
| 1309 | struct bfa_itnim_s *itnim = itnim_arg; |
| 1310 | |
| 1311 | itnim->iotov_active = BFA_FALSE; |
| 1312 | |
| 1313 | bfa_cb_itnim_tov_begin(itnim->ditn); |
| 1314 | bfa_itnim_iotov_cleanup(itnim); |
| 1315 | bfa_cb_itnim_tov(itnim->ditn); |
| 1316 | } |
| 1317 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1318 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1319 | * Start IO TOV timer for failing back pending IO requests in offline state. |
| 1320 | */ |
| 1321 | static void |
| 1322 | bfa_itnim_iotov_start(struct bfa_itnim_s *itnim) |
| 1323 | { |
| 1324 | if (itnim->fcpim->path_tov > 0) { |
| 1325 | |
| 1326 | itnim->iotov_active = BFA_TRUE; |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1327 | WARN_ON(!bfa_itnim_hold_io(itnim)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1328 | bfa_timer_start(itnim->bfa, &itnim->timer, |
| 1329 | bfa_itnim_iotov, itnim, itnim->fcpim->path_tov); |
| 1330 | } |
| 1331 | } |
| 1332 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1333 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1334 | * Stop IO TOV timer. |
| 1335 | */ |
| 1336 | static void |
| 1337 | bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim) |
| 1338 | { |
| 1339 | if (itnim->iotov_active) { |
| 1340 | itnim->iotov_active = BFA_FALSE; |
| 1341 | bfa_timer_stop(&itnim->timer); |
| 1342 | } |
| 1343 | } |
| 1344 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1345 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1346 | * Stop IO TOV timer. |
| 1347 | */ |
| 1348 | static void |
| 1349 | bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim) |
| 1350 | { |
| 1351 | bfa_boolean_t pathtov_active = BFA_FALSE; |
| 1352 | |
| 1353 | if (itnim->iotov_active) |
| 1354 | pathtov_active = BFA_TRUE; |
| 1355 | |
| 1356 | bfa_itnim_iotov_stop(itnim); |
| 1357 | if (pathtov_active) |
| 1358 | bfa_cb_itnim_tov_begin(itnim->ditn); |
| 1359 | bfa_itnim_iotov_cleanup(itnim); |
| 1360 | if (pathtov_active) |
| 1361 | bfa_cb_itnim_tov(itnim->ditn); |
| 1362 | } |
| 1363 | |
| 1364 | static void |
| 1365 | bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim) |
| 1366 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 1367 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1368 | fcpim->del_itn_stats.del_itn_iocomp_aborted += |
| 1369 | itnim->stats.iocomp_aborted; |
| 1370 | fcpim->del_itn_stats.del_itn_iocomp_timedout += |
| 1371 | itnim->stats.iocomp_timedout; |
| 1372 | fcpim->del_itn_stats.del_itn_iocom_sqer_needed += |
| 1373 | itnim->stats.iocom_sqer_needed; |
| 1374 | fcpim->del_itn_stats.del_itn_iocom_res_free += |
| 1375 | itnim->stats.iocom_res_free; |
| 1376 | fcpim->del_itn_stats.del_itn_iocom_hostabrts += |
| 1377 | itnim->stats.iocom_hostabrts; |
| 1378 | fcpim->del_itn_stats.del_itn_total_ios += itnim->stats.total_ios; |
| 1379 | fcpim->del_itn_stats.del_io_iocdowns += itnim->stats.io_iocdowns; |
| 1380 | fcpim->del_itn_stats.del_tm_iocdowns += itnim->stats.tm_iocdowns; |
| 1381 | } |
| 1382 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1383 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1384 | * bfa_itnim_public |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1385 | */ |
| 1386 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1387 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1388 | * Itnim interrupt processing. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1389 | */ |
| 1390 | void |
| 1391 | bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) |
| 1392 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 1393 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1394 | union bfi_itn_i2h_msg_u msg; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1395 | struct bfa_itnim_s *itnim; |
| 1396 | |
| 1397 | bfa_trc(bfa, m->mhdr.msg_id); |
| 1398 | |
| 1399 | msg.msg = m; |
| 1400 | |
| 1401 | switch (m->mhdr.msg_id) { |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1402 | case BFI_ITN_I2H_CREATE_RSP: |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1403 | itnim = BFA_ITNIM_FROM_TAG(fcpim, |
| 1404 | msg.create_rsp->bfa_handle); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1405 | WARN_ON(msg.create_rsp->status != BFA_STATUS_OK); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1406 | bfa_stats(itnim, create_comps); |
| 1407 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); |
| 1408 | break; |
| 1409 | |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1410 | case BFI_ITN_I2H_DELETE_RSP: |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1411 | itnim = BFA_ITNIM_FROM_TAG(fcpim, |
| 1412 | msg.delete_rsp->bfa_handle); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1413 | WARN_ON(msg.delete_rsp->status != BFA_STATUS_OK); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1414 | bfa_stats(itnim, delete_comps); |
| 1415 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); |
| 1416 | break; |
| 1417 | |
Krishna Gudipati | dd5aaf4 | 2011-06-13 15:51:24 -0700 | [diff] [blame] | 1418 | case BFI_ITN_I2H_SLER_EVENT: |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1419 | itnim = BFA_ITNIM_FROM_TAG(fcpim, |
| 1420 | msg.sler_event->bfa_handle); |
| 1421 | bfa_stats(itnim, sler_events); |
| 1422 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_SLER); |
| 1423 | break; |
| 1424 | |
| 1425 | default: |
| 1426 | bfa_trc(bfa, m->mhdr.msg_id); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1427 | WARN_ON(1); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1428 | } |
| 1429 | } |
| 1430 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1431 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1432 | * bfa_itnim_api |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1433 | */ |
| 1434 | |
| 1435 | struct bfa_itnim_s * |
| 1436 | bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn) |
| 1437 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 1438 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1439 | struct bfa_itnim_s *itnim; |
| 1440 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 1441 | bfa_itn_create(bfa, rport, bfa_itnim_isr); |
| 1442 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1443 | itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1444 | WARN_ON(itnim->rport != rport); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1445 | |
| 1446 | itnim->ditn = ditn; |
| 1447 | |
| 1448 | bfa_stats(itnim, creates); |
| 1449 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE); |
| 1450 | |
| 1451 | return itnim; |
| 1452 | } |
| 1453 | |
| 1454 | void |
| 1455 | bfa_itnim_delete(struct bfa_itnim_s *itnim) |
| 1456 | { |
| 1457 | bfa_stats(itnim, deletes); |
| 1458 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_DELETE); |
| 1459 | } |
| 1460 | |
| 1461 | void |
| 1462 | bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec) |
| 1463 | { |
| 1464 | itnim->seq_rec = seq_rec; |
| 1465 | bfa_stats(itnim, onlines); |
| 1466 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_ONLINE); |
| 1467 | } |
| 1468 | |
| 1469 | void |
| 1470 | bfa_itnim_offline(struct bfa_itnim_s *itnim) |
| 1471 | { |
| 1472 | bfa_stats(itnim, offlines); |
| 1473 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_OFFLINE); |
| 1474 | } |
| 1475 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1476 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1477 | * Return true if itnim is considered offline for holding off IO request. |
| 1478 | * IO is not held if itnim is being deleted. |
| 1479 | */ |
| 1480 | bfa_boolean_t |
| 1481 | bfa_itnim_hold_io(struct bfa_itnim_s *itnim) |
| 1482 | { |
| 1483 | return itnim->fcpim->path_tov && itnim->iotov_active && |
| 1484 | (bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) || |
| 1485 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) || |
| 1486 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_cleanup_offline) || |
| 1487 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) || |
| 1488 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) || |
| 1489 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable)); |
| 1490 | } |
| 1491 | |
Krishna Gudipati | 42a8e6e | 2011-07-20 17:01:52 -0700 | [diff] [blame] | 1492 | #define bfa_io_lat_clock_res_div HZ |
| 1493 | #define bfa_io_lat_clock_res_mul 1000 |
| 1494 | bfa_status_t |
| 1495 | bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim, |
| 1496 | struct bfa_itnim_ioprofile_s *ioprofile) |
| 1497 | { |
| 1498 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(itnim->bfa); |
| 1499 | if (!fcpim->io_profile) |
| 1500 | return BFA_STATUS_IOPROFILE_OFF; |
| 1501 | |
| 1502 | itnim->ioprofile.index = BFA_IOBUCKET_MAX; |
| 1503 | itnim->ioprofile.io_profile_start_time = |
| 1504 | bfa_io_profile_start_time(itnim->bfa); |
| 1505 | itnim->ioprofile.clock_res_mul = bfa_io_lat_clock_res_mul; |
| 1506 | itnim->ioprofile.clock_res_div = bfa_io_lat_clock_res_div; |
| 1507 | *ioprofile = itnim->ioprofile; |
| 1508 | |
| 1509 | return BFA_STATUS_OK; |
| 1510 | } |
| 1511 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1512 | void |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1513 | bfa_itnim_clear_stats(struct bfa_itnim_s *itnim) |
| 1514 | { |
| 1515 | int j; |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 1516 | memset(&itnim->stats, 0, sizeof(itnim->stats)); |
| 1517 | memset(&itnim->ioprofile, 0, sizeof(itnim->ioprofile)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1518 | for (j = 0; j < BFA_IOBUCKET_MAX; j++) |
| 1519 | itnim->ioprofile.io_latency.min[j] = ~0; |
| 1520 | } |
| 1521 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1522 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1523 | * BFA IO module state machine functions |
| 1524 | */ |
| 1525 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1526 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1527 | * IO is not started (unallocated). |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1528 | */ |
| 1529 | static void |
| 1530 | bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1531 | { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1532 | switch (event) { |
| 1533 | case BFA_IOIM_SM_START: |
| 1534 | if (!bfa_itnim_is_online(ioim->itnim)) { |
| 1535 | if (!bfa_itnim_hold_io(ioim->itnim)) { |
| 1536 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1537 | list_del(&ioim->qe); |
| 1538 | list_add_tail(&ioim->qe, |
| 1539 | &ioim->fcpim->ioim_comp_q); |
| 1540 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1541 | __bfa_cb_ioim_pathtov, ioim); |
| 1542 | } else { |
| 1543 | list_del(&ioim->qe); |
| 1544 | list_add_tail(&ioim->qe, |
| 1545 | &ioim->itnim->pending_q); |
| 1546 | } |
| 1547 | break; |
| 1548 | } |
| 1549 | |
| 1550 | if (ioim->nsges > BFI_SGE_INLINE) { |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 1551 | if (!bfa_ioim_sgpg_alloc(ioim)) { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1552 | bfa_sm_set_state(ioim, bfa_ioim_sm_sgalloc); |
| 1553 | return; |
| 1554 | } |
| 1555 | } |
| 1556 | |
| 1557 | if (!bfa_ioim_send_ioreq(ioim)) { |
| 1558 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); |
| 1559 | break; |
| 1560 | } |
| 1561 | |
| 1562 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); |
| 1563 | break; |
| 1564 | |
| 1565 | case BFA_IOIM_SM_IOTOV: |
| 1566 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1567 | bfa_ioim_move_to_comp_q(ioim); |
| 1568 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1569 | __bfa_cb_ioim_pathtov, ioim); |
| 1570 | break; |
| 1571 | |
| 1572 | case BFA_IOIM_SM_ABORT: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1573 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1574 | * IO in pending queue can get abort requests. Complete abort |
| 1575 | * requests immediately. |
| 1576 | */ |
| 1577 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1578 | WARN_ON(!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1579 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 1580 | __bfa_cb_ioim_abort, ioim); |
| 1581 | break; |
| 1582 | |
| 1583 | case BFA_IOIM_SM_LM_LUN_NOT_SUP: |
| 1584 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1585 | bfa_ioim_move_to_comp_q(ioim); |
| 1586 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1587 | __bfa_cb_ioim_lm_lun_not_sup, ioim); |
| 1588 | break; |
| 1589 | |
| 1590 | case BFA_IOIM_SM_LM_RPL_DC: |
| 1591 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1592 | bfa_ioim_move_to_comp_q(ioim); |
| 1593 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1594 | __bfa_cb_ioim_lm_rpl_dc, ioim); |
| 1595 | break; |
| 1596 | |
| 1597 | case BFA_IOIM_SM_LM_LUN_NOT_RDY: |
| 1598 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1599 | bfa_ioim_move_to_comp_q(ioim); |
| 1600 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1601 | __bfa_cb_ioim_lm_lun_not_rdy, ioim); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1602 | break; |
| 1603 | |
| 1604 | default: |
| 1605 | bfa_sm_fault(ioim->bfa, event); |
| 1606 | } |
| 1607 | } |
| 1608 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1609 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1610 | * IO is waiting for SG pages. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1611 | */ |
| 1612 | static void |
| 1613 | bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1614 | { |
| 1615 | bfa_trc(ioim->bfa, ioim->iotag); |
| 1616 | bfa_trc(ioim->bfa, event); |
| 1617 | |
| 1618 | switch (event) { |
| 1619 | case BFA_IOIM_SM_SGALLOCED: |
| 1620 | if (!bfa_ioim_send_ioreq(ioim)) { |
| 1621 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); |
| 1622 | break; |
| 1623 | } |
| 1624 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); |
| 1625 | break; |
| 1626 | |
| 1627 | case BFA_IOIM_SM_CLEANUP: |
| 1628 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1629 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); |
| 1630 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1631 | ioim); |
| 1632 | bfa_ioim_notify_cleanup(ioim); |
| 1633 | break; |
| 1634 | |
| 1635 | case BFA_IOIM_SM_ABORT: |
| 1636 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1637 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); |
| 1638 | bfa_ioim_move_to_comp_q(ioim); |
| 1639 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1640 | ioim); |
| 1641 | break; |
| 1642 | |
| 1643 | case BFA_IOIM_SM_HWFAIL: |
| 1644 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1645 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); |
| 1646 | bfa_ioim_move_to_comp_q(ioim); |
| 1647 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1648 | ioim); |
| 1649 | break; |
| 1650 | |
| 1651 | default: |
| 1652 | bfa_sm_fault(ioim->bfa, event); |
| 1653 | } |
| 1654 | } |
| 1655 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1656 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1657 | * IO is active. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1658 | */ |
| 1659 | static void |
| 1660 | bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1661 | { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1662 | switch (event) { |
| 1663 | case BFA_IOIM_SM_COMP_GOOD: |
| 1664 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1665 | bfa_ioim_move_to_comp_q(ioim); |
| 1666 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1667 | __bfa_cb_ioim_good_comp, ioim); |
| 1668 | break; |
| 1669 | |
| 1670 | case BFA_IOIM_SM_COMP: |
| 1671 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1672 | bfa_ioim_move_to_comp_q(ioim); |
| 1673 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, |
| 1674 | ioim); |
| 1675 | break; |
| 1676 | |
| 1677 | case BFA_IOIM_SM_DONE: |
| 1678 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1679 | bfa_ioim_move_to_comp_q(ioim); |
| 1680 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, |
| 1681 | ioim); |
| 1682 | break; |
| 1683 | |
| 1684 | case BFA_IOIM_SM_ABORT: |
| 1685 | ioim->iosp->abort_explicit = BFA_TRUE; |
| 1686 | ioim->io_cbfn = __bfa_cb_ioim_abort; |
| 1687 | |
| 1688 | if (bfa_ioim_send_abort(ioim)) |
| 1689 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort); |
| 1690 | else { |
| 1691 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull); |
| 1692 | bfa_stats(ioim->itnim, qwait); |
| 1693 | bfa_reqq_wait(ioim->bfa, ioim->reqq, |
| 1694 | &ioim->iosp->reqq_wait); |
| 1695 | } |
| 1696 | break; |
| 1697 | |
| 1698 | case BFA_IOIM_SM_CLEANUP: |
| 1699 | ioim->iosp->abort_explicit = BFA_FALSE; |
| 1700 | ioim->io_cbfn = __bfa_cb_ioim_failed; |
| 1701 | |
| 1702 | if (bfa_ioim_send_abort(ioim)) |
| 1703 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); |
| 1704 | else { |
| 1705 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); |
| 1706 | bfa_stats(ioim->itnim, qwait); |
| 1707 | bfa_reqq_wait(ioim->bfa, ioim->reqq, |
| 1708 | &ioim->iosp->reqq_wait); |
| 1709 | } |
| 1710 | break; |
| 1711 | |
| 1712 | case BFA_IOIM_SM_HWFAIL: |
| 1713 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1714 | bfa_ioim_move_to_comp_q(ioim); |
| 1715 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1716 | ioim); |
| 1717 | break; |
| 1718 | |
| 1719 | case BFA_IOIM_SM_SQRETRY: |
Krishna Gudipati | 15821f0 | 2010-12-13 16:23:27 -0800 | [diff] [blame] | 1720 | if (bfa_ioim_maxretry_reached(ioim)) { |
| 1721 | /* max retry reached, free IO */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1722 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1723 | bfa_ioim_move_to_comp_q(ioim); |
| 1724 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1725 | __bfa_cb_ioim_failed, ioim); |
| 1726 | break; |
| 1727 | } |
| 1728 | /* waiting for IO tag resource free */ |
| 1729 | bfa_sm_set_state(ioim, bfa_ioim_sm_cmnd_retry); |
| 1730 | break; |
| 1731 | |
| 1732 | default: |
| 1733 | bfa_sm_fault(ioim->bfa, event); |
| 1734 | } |
| 1735 | } |
| 1736 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1737 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1738 | * IO is retried with new tag. |
| 1739 | */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1740 | static void |
| 1741 | bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1742 | { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1743 | switch (event) { |
| 1744 | case BFA_IOIM_SM_FREE: |
| 1745 | /* abts and rrq done. Now retry the IO with new tag */ |
Krishna Gudipati | 15821f0 | 2010-12-13 16:23:27 -0800 | [diff] [blame] | 1746 | bfa_ioim_update_iotag(ioim); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1747 | if (!bfa_ioim_send_ioreq(ioim)) { |
| 1748 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); |
| 1749 | break; |
| 1750 | } |
| 1751 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); |
| 1752 | break; |
| 1753 | |
| 1754 | case BFA_IOIM_SM_CLEANUP: |
| 1755 | ioim->iosp->abort_explicit = BFA_FALSE; |
| 1756 | ioim->io_cbfn = __bfa_cb_ioim_failed; |
| 1757 | |
| 1758 | if (bfa_ioim_send_abort(ioim)) |
| 1759 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); |
| 1760 | else { |
| 1761 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); |
| 1762 | bfa_stats(ioim->itnim, qwait); |
| 1763 | bfa_reqq_wait(ioim->bfa, ioim->reqq, |
| 1764 | &ioim->iosp->reqq_wait); |
| 1765 | } |
| 1766 | break; |
| 1767 | |
| 1768 | case BFA_IOIM_SM_HWFAIL: |
| 1769 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1770 | bfa_ioim_move_to_comp_q(ioim); |
| 1771 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, |
| 1772 | __bfa_cb_ioim_failed, ioim); |
| 1773 | break; |
| 1774 | |
| 1775 | case BFA_IOIM_SM_ABORT: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1776 | /* in this state IO abort is done. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1777 | * Waiting for IO tag resource free. |
| 1778 | */ |
| 1779 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1780 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1781 | ioim); |
| 1782 | break; |
| 1783 | |
| 1784 | default: |
| 1785 | bfa_sm_fault(ioim->bfa, event); |
| 1786 | } |
| 1787 | } |
| 1788 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1789 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1790 | * IO is being aborted, waiting for completion from firmware. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1791 | */ |
| 1792 | static void |
| 1793 | bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1794 | { |
| 1795 | bfa_trc(ioim->bfa, ioim->iotag); |
| 1796 | bfa_trc(ioim->bfa, event); |
| 1797 | |
| 1798 | switch (event) { |
| 1799 | case BFA_IOIM_SM_COMP_GOOD: |
| 1800 | case BFA_IOIM_SM_COMP: |
| 1801 | case BFA_IOIM_SM_DONE: |
| 1802 | case BFA_IOIM_SM_FREE: |
| 1803 | break; |
| 1804 | |
| 1805 | case BFA_IOIM_SM_ABORT_DONE: |
| 1806 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1807 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1808 | ioim); |
| 1809 | break; |
| 1810 | |
| 1811 | case BFA_IOIM_SM_ABORT_COMP: |
| 1812 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1813 | bfa_ioim_move_to_comp_q(ioim); |
| 1814 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1815 | ioim); |
| 1816 | break; |
| 1817 | |
| 1818 | case BFA_IOIM_SM_COMP_UTAG: |
| 1819 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1820 | bfa_ioim_move_to_comp_q(ioim); |
| 1821 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1822 | ioim); |
| 1823 | break; |
| 1824 | |
| 1825 | case BFA_IOIM_SM_CLEANUP: |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1826 | WARN_ON(ioim->iosp->abort_explicit != BFA_TRUE); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1827 | ioim->iosp->abort_explicit = BFA_FALSE; |
| 1828 | |
| 1829 | if (bfa_ioim_send_abort(ioim)) |
| 1830 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); |
| 1831 | else { |
| 1832 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); |
| 1833 | bfa_stats(ioim->itnim, qwait); |
| 1834 | bfa_reqq_wait(ioim->bfa, ioim->reqq, |
| 1835 | &ioim->iosp->reqq_wait); |
| 1836 | } |
| 1837 | break; |
| 1838 | |
| 1839 | case BFA_IOIM_SM_HWFAIL: |
| 1840 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1841 | bfa_ioim_move_to_comp_q(ioim); |
| 1842 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1843 | ioim); |
| 1844 | break; |
| 1845 | |
| 1846 | default: |
| 1847 | bfa_sm_fault(ioim->bfa, event); |
| 1848 | } |
| 1849 | } |
| 1850 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1851 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1852 | * IO is being cleaned up (implicit abort), waiting for completion from |
| 1853 | * firmware. |
| 1854 | */ |
| 1855 | static void |
| 1856 | bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1857 | { |
| 1858 | bfa_trc(ioim->bfa, ioim->iotag); |
| 1859 | bfa_trc(ioim->bfa, event); |
| 1860 | |
| 1861 | switch (event) { |
| 1862 | case BFA_IOIM_SM_COMP_GOOD: |
| 1863 | case BFA_IOIM_SM_COMP: |
| 1864 | case BFA_IOIM_SM_DONE: |
| 1865 | case BFA_IOIM_SM_FREE: |
| 1866 | break; |
| 1867 | |
| 1868 | case BFA_IOIM_SM_ABORT: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1869 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1870 | * IO is already being aborted implicitly |
| 1871 | */ |
| 1872 | ioim->io_cbfn = __bfa_cb_ioim_abort; |
| 1873 | break; |
| 1874 | |
| 1875 | case BFA_IOIM_SM_ABORT_DONE: |
| 1876 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1877 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 1878 | bfa_ioim_notify_cleanup(ioim); |
| 1879 | break; |
| 1880 | |
| 1881 | case BFA_IOIM_SM_ABORT_COMP: |
| 1882 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1883 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 1884 | bfa_ioim_notify_cleanup(ioim); |
| 1885 | break; |
| 1886 | |
| 1887 | case BFA_IOIM_SM_COMP_UTAG: |
| 1888 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1889 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 1890 | bfa_ioim_notify_cleanup(ioim); |
| 1891 | break; |
| 1892 | |
| 1893 | case BFA_IOIM_SM_HWFAIL: |
| 1894 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1895 | bfa_ioim_move_to_comp_q(ioim); |
| 1896 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1897 | ioim); |
| 1898 | break; |
| 1899 | |
| 1900 | case BFA_IOIM_SM_CLEANUP: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1901 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1902 | * IO can be in cleanup state already due to TM command. |
| 1903 | * 2nd cleanup request comes from ITN offline event. |
| 1904 | */ |
| 1905 | break; |
| 1906 | |
| 1907 | default: |
| 1908 | bfa_sm_fault(ioim->bfa, event); |
| 1909 | } |
| 1910 | } |
| 1911 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1912 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1913 | * IO is waiting for room in request CQ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1914 | */ |
| 1915 | static void |
| 1916 | bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1917 | { |
| 1918 | bfa_trc(ioim->bfa, ioim->iotag); |
| 1919 | bfa_trc(ioim->bfa, event); |
| 1920 | |
| 1921 | switch (event) { |
| 1922 | case BFA_IOIM_SM_QRESUME: |
| 1923 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); |
| 1924 | bfa_ioim_send_ioreq(ioim); |
| 1925 | break; |
| 1926 | |
| 1927 | case BFA_IOIM_SM_ABORT: |
| 1928 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1929 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1930 | bfa_ioim_move_to_comp_q(ioim); |
| 1931 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1932 | ioim); |
| 1933 | break; |
| 1934 | |
| 1935 | case BFA_IOIM_SM_CLEANUP: |
| 1936 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1937 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1938 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1939 | ioim); |
| 1940 | bfa_ioim_notify_cleanup(ioim); |
| 1941 | break; |
| 1942 | |
| 1943 | case BFA_IOIM_SM_HWFAIL: |
| 1944 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1945 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1946 | bfa_ioim_move_to_comp_q(ioim); |
| 1947 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1948 | ioim); |
| 1949 | break; |
| 1950 | |
| 1951 | default: |
| 1952 | bfa_sm_fault(ioim->bfa, event); |
| 1953 | } |
| 1954 | } |
| 1955 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 1956 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 1957 | * Active IO is being aborted, waiting for room in request CQ. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1958 | */ |
| 1959 | static void |
| 1960 | bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 1961 | { |
| 1962 | bfa_trc(ioim->bfa, ioim->iotag); |
| 1963 | bfa_trc(ioim->bfa, event); |
| 1964 | |
| 1965 | switch (event) { |
| 1966 | case BFA_IOIM_SM_QRESUME: |
| 1967 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort); |
| 1968 | bfa_ioim_send_abort(ioim); |
| 1969 | break; |
| 1970 | |
| 1971 | case BFA_IOIM_SM_CLEANUP: |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 1972 | WARN_ON(ioim->iosp->abort_explicit != BFA_TRUE); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 1973 | ioim->iosp->abort_explicit = BFA_FALSE; |
| 1974 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); |
| 1975 | break; |
| 1976 | |
| 1977 | case BFA_IOIM_SM_COMP_GOOD: |
| 1978 | case BFA_IOIM_SM_COMP: |
| 1979 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1980 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1981 | bfa_ioim_move_to_comp_q(ioim); |
| 1982 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1983 | ioim); |
| 1984 | break; |
| 1985 | |
| 1986 | case BFA_IOIM_SM_DONE: |
| 1987 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 1988 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1989 | bfa_ioim_move_to_comp_q(ioim); |
| 1990 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, |
| 1991 | ioim); |
| 1992 | break; |
| 1993 | |
| 1994 | case BFA_IOIM_SM_HWFAIL: |
| 1995 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 1996 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 1997 | bfa_ioim_move_to_comp_q(ioim); |
| 1998 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 1999 | ioim); |
| 2000 | break; |
| 2001 | |
| 2002 | default: |
| 2003 | bfa_sm_fault(ioim->bfa, event); |
| 2004 | } |
| 2005 | } |
| 2006 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2007 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 2008 | * Active IO is being cleaned up, waiting for room in request CQ. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2009 | */ |
| 2010 | static void |
| 2011 | bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 2012 | { |
| 2013 | bfa_trc(ioim->bfa, ioim->iotag); |
| 2014 | bfa_trc(ioim->bfa, event); |
| 2015 | |
| 2016 | switch (event) { |
| 2017 | case BFA_IOIM_SM_QRESUME: |
| 2018 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); |
| 2019 | bfa_ioim_send_abort(ioim); |
| 2020 | break; |
| 2021 | |
| 2022 | case BFA_IOIM_SM_ABORT: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2023 | /* |
Uwe Kleine-König | b595076 | 2010-11-01 15:38:34 -0400 | [diff] [blame] | 2024 | * IO is already being cleaned up implicitly |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2025 | */ |
| 2026 | ioim->io_cbfn = __bfa_cb_ioim_abort; |
| 2027 | break; |
| 2028 | |
| 2029 | case BFA_IOIM_SM_COMP_GOOD: |
| 2030 | case BFA_IOIM_SM_COMP: |
| 2031 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 2032 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 2033 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 2034 | bfa_ioim_notify_cleanup(ioim); |
| 2035 | break; |
| 2036 | |
| 2037 | case BFA_IOIM_SM_DONE: |
| 2038 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); |
| 2039 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 2040 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 2041 | bfa_ioim_notify_cleanup(ioim); |
| 2042 | break; |
| 2043 | |
| 2044 | case BFA_IOIM_SM_HWFAIL: |
| 2045 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 2046 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); |
| 2047 | bfa_ioim_move_to_comp_q(ioim); |
| 2048 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, |
| 2049 | ioim); |
| 2050 | break; |
| 2051 | |
| 2052 | default: |
| 2053 | bfa_sm_fault(ioim->bfa, event); |
| 2054 | } |
| 2055 | } |
| 2056 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2057 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2058 | * IO bfa callback is pending. |
| 2059 | */ |
| 2060 | static void |
| 2061 | bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 2062 | { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2063 | switch (event) { |
| 2064 | case BFA_IOIM_SM_HCB: |
| 2065 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); |
| 2066 | bfa_ioim_free(ioim); |
| 2067 | break; |
| 2068 | |
| 2069 | case BFA_IOIM_SM_CLEANUP: |
| 2070 | bfa_ioim_notify_cleanup(ioim); |
| 2071 | break; |
| 2072 | |
| 2073 | case BFA_IOIM_SM_HWFAIL: |
| 2074 | break; |
| 2075 | |
| 2076 | default: |
| 2077 | bfa_sm_fault(ioim->bfa, event); |
| 2078 | } |
| 2079 | } |
| 2080 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2081 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2082 | * IO bfa callback is pending. IO resource cannot be freed. |
| 2083 | */ |
| 2084 | static void |
| 2085 | bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 2086 | { |
| 2087 | bfa_trc(ioim->bfa, ioim->iotag); |
| 2088 | bfa_trc(ioim->bfa, event); |
| 2089 | |
| 2090 | switch (event) { |
| 2091 | case BFA_IOIM_SM_HCB: |
| 2092 | bfa_sm_set_state(ioim, bfa_ioim_sm_resfree); |
| 2093 | list_del(&ioim->qe); |
| 2094 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_resfree_q); |
| 2095 | break; |
| 2096 | |
| 2097 | case BFA_IOIM_SM_FREE: |
| 2098 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 2099 | break; |
| 2100 | |
| 2101 | case BFA_IOIM_SM_CLEANUP: |
| 2102 | bfa_ioim_notify_cleanup(ioim); |
| 2103 | break; |
| 2104 | |
| 2105 | case BFA_IOIM_SM_HWFAIL: |
| 2106 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); |
| 2107 | break; |
| 2108 | |
| 2109 | default: |
| 2110 | bfa_sm_fault(ioim->bfa, event); |
| 2111 | } |
| 2112 | } |
| 2113 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2114 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2115 | * IO is completed, waiting resource free from firmware. |
| 2116 | */ |
| 2117 | static void |
| 2118 | bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) |
| 2119 | { |
| 2120 | bfa_trc(ioim->bfa, ioim->iotag); |
| 2121 | bfa_trc(ioim->bfa, event); |
| 2122 | |
| 2123 | switch (event) { |
| 2124 | case BFA_IOIM_SM_FREE: |
| 2125 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); |
| 2126 | bfa_ioim_free(ioim); |
| 2127 | break; |
| 2128 | |
| 2129 | case BFA_IOIM_SM_CLEANUP: |
| 2130 | bfa_ioim_notify_cleanup(ioim); |
| 2131 | break; |
| 2132 | |
| 2133 | case BFA_IOIM_SM_HWFAIL: |
| 2134 | break; |
| 2135 | |
| 2136 | default: |
| 2137 | bfa_sm_fault(ioim->bfa, event); |
| 2138 | } |
| 2139 | } |
| 2140 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2141 | /* |
| 2142 | * This is called from bfa_fcpim_start after the bfa_init() with flash read |
| 2143 | * is complete by driver. now invalidate the stale content of lun mask |
| 2144 | * like unit attention, rp tag and lp tag. |
| 2145 | */ |
| 2146 | static void |
| 2147 | bfa_ioim_lm_init(struct bfa_s *bfa) |
| 2148 | { |
| 2149 | struct bfa_lun_mask_s *lunm_list; |
| 2150 | int i; |
| 2151 | |
| 2152 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2153 | return; |
| 2154 | |
| 2155 | lunm_list = bfa_get_lun_mask_list(bfa); |
| 2156 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2157 | lunm_list[i].ua = BFA_IOIM_LM_UA_RESET; |
| 2158 | lunm_list[i].lp_tag = BFA_LP_TAG_INVALID; |
| 2159 | lunm_list[i].rp_tag = BFA_RPORT_TAG_INVALID; |
| 2160 | } |
| 2161 | } |
| 2162 | |
| 2163 | /* |
| 2164 | * Validate LUN for LUN masking |
| 2165 | */ |
| 2166 | static enum bfa_ioim_lm_status |
| 2167 | bfa_ioim_lm_check(struct bfa_ioim_s *ioim, struct bfa_lps_s *lps, |
| 2168 | struct bfa_rport_s *rp, struct scsi_lun lun) |
| 2169 | { |
| 2170 | u8 i; |
| 2171 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa); |
| 2172 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio; |
| 2173 | struct scsi_cdb_s *cdb = (struct scsi_cdb_s *)cmnd->cmnd; |
| 2174 | |
| 2175 | if ((cdb->scsi_cdb[0] == REPORT_LUNS) && |
| 2176 | (scsilun_to_int((struct scsi_lun *)&lun) == 0)) { |
| 2177 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rpl_data; |
| 2178 | return BFA_IOIM_LM_PRESENT; |
| 2179 | } |
| 2180 | |
| 2181 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2182 | |
| 2183 | if (lun_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) |
| 2184 | continue; |
| 2185 | |
| 2186 | if ((scsilun_to_int((struct scsi_lun *)&lun_list[i].lun) == |
| 2187 | scsilun_to_int((struct scsi_lun *)&lun)) |
| 2188 | && (rp->rport_tag == lun_list[i].rp_tag) |
| 2189 | && ((u8)ioim->itnim->rport->rport_info.lp_tag == |
| 2190 | lun_list[i].lp_tag)) { |
| 2191 | bfa_trc(ioim->bfa, lun_list[i].rp_tag); |
| 2192 | bfa_trc(ioim->bfa, lun_list[i].lp_tag); |
| 2193 | bfa_trc(ioim->bfa, scsilun_to_int( |
| 2194 | (struct scsi_lun *)&lun_list[i].lun)); |
| 2195 | |
| 2196 | if ((lun_list[i].ua == BFA_IOIM_LM_UA_SET) && |
| 2197 | ((cdb->scsi_cdb[0] != INQUIRY) || |
| 2198 | (cdb->scsi_cdb[0] != REPORT_LUNS))) { |
| 2199 | lun_list[i].ua = BFA_IOIM_LM_UA_RESET; |
| 2200 | return BFA_IOIM_LM_RPL_DATA_CHANGED; |
| 2201 | } |
| 2202 | |
| 2203 | if (cdb->scsi_cdb[0] == REPORT_LUNS) |
| 2204 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rpl_data; |
| 2205 | |
| 2206 | return BFA_IOIM_LM_PRESENT; |
| 2207 | } |
| 2208 | } |
| 2209 | |
| 2210 | if ((cdb->scsi_cdb[0] == INQUIRY) && |
| 2211 | (scsilun_to_int((struct scsi_lun *)&lun) == 0)) { |
| 2212 | ioim->proc_rsp_data = bfa_ioim_lm_proc_inq_data; |
| 2213 | return BFA_IOIM_LM_PRESENT; |
| 2214 | } |
| 2215 | |
| 2216 | if (cdb->scsi_cdb[0] == TEST_UNIT_READY) |
| 2217 | return BFA_IOIM_LM_LUN_NOT_RDY; |
| 2218 | |
| 2219 | return BFA_IOIM_LM_LUN_NOT_SUP; |
| 2220 | } |
| 2221 | |
| 2222 | static bfa_boolean_t |
| 2223 | bfa_ioim_lm_proc_rsp_data_dummy(struct bfa_ioim_s *ioim) |
| 2224 | { |
| 2225 | return BFA_TRUE; |
| 2226 | } |
| 2227 | |
| 2228 | static void |
| 2229 | bfa_ioim_lm_fetch_lun(struct bfa_ioim_s *ioim, u8 *rl_data, int offset, |
| 2230 | int buf_lun_cnt) |
| 2231 | { |
| 2232 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa); |
| 2233 | struct scsi_lun *lun_data = (struct scsi_lun *)(rl_data + offset); |
| 2234 | struct scsi_lun lun; |
| 2235 | int i, j; |
| 2236 | |
| 2237 | bfa_trc(ioim->bfa, buf_lun_cnt); |
| 2238 | for (j = 0; j < buf_lun_cnt; j++) { |
| 2239 | lun = *((struct scsi_lun *)(lun_data + j)); |
| 2240 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2241 | if (lun_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) |
| 2242 | continue; |
| 2243 | if ((lun_list[i].rp_wwn == bfa_ioim_rp_wwn(ioim)) && |
| 2244 | (lun_list[i].lp_wwn == bfa_ioim_lp_wwn(ioim)) && |
| 2245 | (scsilun_to_int((struct scsi_lun *)&lun_list[i].lun) |
| 2246 | == scsilun_to_int((struct scsi_lun *)&lun))) { |
| 2247 | lun_list[i].state = BFA_IOIM_LUN_MASK_FETCHED; |
| 2248 | break; |
| 2249 | } |
| 2250 | } /* next lun in mask DB */ |
| 2251 | } /* next lun in buf */ |
| 2252 | } |
| 2253 | |
| 2254 | static int |
| 2255 | bfa_ioim_lm_update_lun_sg(struct bfa_ioim_s *ioim, u32 *pgdlen, |
| 2256 | struct scsi_report_luns_data_s *rl) |
| 2257 | { |
| 2258 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio; |
| 2259 | struct scatterlist *sg = scsi_sglist(cmnd); |
| 2260 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa); |
| 2261 | struct scsi_lun *prev_rl_data = NULL, *base_rl_data; |
| 2262 | int i, j, sgeid, lun_fetched_cnt = 0, prev_sg_len = 0, base_count; |
| 2263 | int lun_across_sg_bytes, bytes_from_next_buf; |
| 2264 | u64 last_lun, temp_last_lun; |
| 2265 | |
| 2266 | /* fetch luns from the first sg element */ |
| 2267 | bfa_ioim_lm_fetch_lun(ioim, (u8 *)(rl->lun), 0, |
| 2268 | (sg_dma_len(sg) / sizeof(struct scsi_lun)) - 1); |
| 2269 | |
| 2270 | /* fetch luns from multiple sg elements */ |
| 2271 | scsi_for_each_sg(cmnd, sg, scsi_sg_count(cmnd), sgeid) { |
| 2272 | if (sgeid == 0) { |
| 2273 | prev_sg_len = sg_dma_len(sg); |
| 2274 | prev_rl_data = (struct scsi_lun *) |
| 2275 | phys_to_virt(sg_dma_address(sg)); |
| 2276 | continue; |
| 2277 | } |
| 2278 | |
| 2279 | /* if the buf is having more data */ |
| 2280 | lun_across_sg_bytes = prev_sg_len % sizeof(struct scsi_lun); |
| 2281 | if (lun_across_sg_bytes) { |
| 2282 | bfa_trc(ioim->bfa, lun_across_sg_bytes); |
| 2283 | bfa_stats(ioim->itnim, lm_lun_across_sg); |
| 2284 | bytes_from_next_buf = sizeof(struct scsi_lun) - |
| 2285 | lun_across_sg_bytes; |
| 2286 | |
| 2287 | /* from next buf take higher bytes */ |
| 2288 | temp_last_lun = *((u64 *) |
| 2289 | phys_to_virt(sg_dma_address(sg))); |
| 2290 | last_lun |= temp_last_lun >> |
| 2291 | (lun_across_sg_bytes * BITS_PER_BYTE); |
| 2292 | |
| 2293 | /* from prev buf take higher bytes */ |
| 2294 | temp_last_lun = *((u64 *)(prev_rl_data + |
| 2295 | (prev_sg_len - lun_across_sg_bytes))); |
| 2296 | temp_last_lun >>= bytes_from_next_buf * BITS_PER_BYTE; |
| 2297 | last_lun = last_lun | (temp_last_lun << |
| 2298 | (bytes_from_next_buf * BITS_PER_BYTE)); |
| 2299 | |
| 2300 | bfa_ioim_lm_fetch_lun(ioim, (u8 *)&last_lun, 0, 1); |
| 2301 | } else |
| 2302 | bytes_from_next_buf = 0; |
| 2303 | |
| 2304 | *pgdlen += sg_dma_len(sg); |
| 2305 | prev_sg_len = sg_dma_len(sg); |
| 2306 | prev_rl_data = (struct scsi_lun *) |
| 2307 | phys_to_virt(sg_dma_address(sg)); |
| 2308 | bfa_ioim_lm_fetch_lun(ioim, (u8 *)prev_rl_data, |
| 2309 | bytes_from_next_buf, |
| 2310 | sg_dma_len(sg) / sizeof(struct scsi_lun)); |
| 2311 | } |
| 2312 | |
| 2313 | /* update the report luns data - based on fetched luns */ |
| 2314 | sg = scsi_sglist(cmnd); |
| 2315 | base_rl_data = (struct scsi_lun *)rl->lun; |
| 2316 | base_count = (sg_dma_len(sg) / sizeof(struct scsi_lun)) - 1; |
| 2317 | for (i = 0, j = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2318 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_FETCHED) { |
| 2319 | base_rl_data[j] = lun_list[i].lun; |
| 2320 | lun_list[i].state = BFA_IOIM_LUN_MASK_ACTIVE; |
| 2321 | j++; |
| 2322 | lun_fetched_cnt++; |
| 2323 | } |
| 2324 | |
| 2325 | if (j > base_count) { |
| 2326 | j = 0; |
| 2327 | sg = sg_next(sg); |
| 2328 | base_rl_data = (struct scsi_lun *) |
| 2329 | phys_to_virt(sg_dma_address(sg)); |
| 2330 | base_count = sg_dma_len(sg) / sizeof(struct scsi_lun); |
| 2331 | } |
| 2332 | } |
| 2333 | |
| 2334 | bfa_trc(ioim->bfa, lun_fetched_cnt); |
| 2335 | return lun_fetched_cnt; |
| 2336 | } |
| 2337 | |
| 2338 | static bfa_boolean_t |
| 2339 | bfa_ioim_lm_proc_inq_data(struct bfa_ioim_s *ioim) |
| 2340 | { |
| 2341 | struct scsi_inquiry_data_s *inq; |
| 2342 | struct scatterlist *sg = scsi_sglist((struct scsi_cmnd *)ioim->dio); |
| 2343 | |
| 2344 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
| 2345 | inq = (struct scsi_inquiry_data_s *)phys_to_virt(sg_dma_address(sg)); |
| 2346 | |
| 2347 | bfa_trc(ioim->bfa, inq->device_type); |
| 2348 | inq->peripheral_qual = SCSI_INQ_PQ_NOT_CON; |
| 2349 | return 0; |
| 2350 | } |
| 2351 | |
| 2352 | static bfa_boolean_t |
| 2353 | bfa_ioim_lm_proc_rpl_data(struct bfa_ioim_s *ioim) |
| 2354 | { |
| 2355 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio; |
| 2356 | struct scatterlist *sg = scsi_sglist(cmnd); |
| 2357 | struct bfi_ioim_rsp_s *m; |
| 2358 | struct scsi_report_luns_data_s *rl = NULL; |
| 2359 | int lun_count = 0, lun_fetched_cnt = 0; |
| 2360 | u32 residue, pgdlen = 0; |
| 2361 | |
| 2362 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
| 2363 | if (bfa_get_lun_mask_status(ioim->bfa) != BFA_LUNMASK_ENABLED) |
| 2364 | return BFA_TRUE; |
| 2365 | |
| 2366 | m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg; |
| 2367 | if (m->scsi_status == SCSI_STATUS_CHECK_CONDITION) |
| 2368 | return BFA_TRUE; |
| 2369 | |
| 2370 | pgdlen = sg_dma_len(sg); |
| 2371 | bfa_trc(ioim->bfa, pgdlen); |
| 2372 | rl = (struct scsi_report_luns_data_s *)phys_to_virt(sg_dma_address(sg)); |
| 2373 | lun_count = cpu_to_be32(rl->lun_list_length) / sizeof(struct scsi_lun); |
| 2374 | lun_fetched_cnt = bfa_ioim_lm_update_lun_sg(ioim, &pgdlen, rl); |
| 2375 | |
| 2376 | if (lun_count == lun_fetched_cnt) |
| 2377 | return BFA_TRUE; |
| 2378 | |
| 2379 | bfa_trc(ioim->bfa, lun_count); |
| 2380 | bfa_trc(ioim->bfa, lun_fetched_cnt); |
| 2381 | bfa_trc(ioim->bfa, be32_to_cpu(rl->lun_list_length)); |
| 2382 | |
| 2383 | if (be32_to_cpu(rl->lun_list_length) <= pgdlen) |
| 2384 | rl->lun_list_length = be32_to_cpu(lun_fetched_cnt) * |
| 2385 | sizeof(struct scsi_lun); |
| 2386 | else |
| 2387 | bfa_stats(ioim->itnim, lm_small_buf_addresidue); |
| 2388 | |
| 2389 | bfa_trc(ioim->bfa, be32_to_cpu(rl->lun_list_length)); |
| 2390 | bfa_trc(ioim->bfa, be32_to_cpu(m->residue)); |
| 2391 | |
| 2392 | residue = be32_to_cpu(m->residue); |
| 2393 | residue += (lun_count - lun_fetched_cnt) * sizeof(struct scsi_lun); |
| 2394 | bfa_stats(ioim->itnim, lm_wire_residue_changed); |
| 2395 | m->residue = be32_to_cpu(residue); |
| 2396 | bfa_trc(ioim->bfa, ioim->nsges); |
| 2397 | return BFA_FALSE; |
| 2398 | } |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2399 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2400 | static void |
| 2401 | __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete) |
| 2402 | { |
| 2403 | struct bfa_ioim_s *ioim = cbarg; |
| 2404 | |
| 2405 | if (!complete) { |
| 2406 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2407 | return; |
| 2408 | } |
| 2409 | |
| 2410 | bfa_cb_ioim_good_comp(ioim->bfa->bfad, ioim->dio); |
| 2411 | } |
| 2412 | |
| 2413 | static void |
| 2414 | __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete) |
| 2415 | { |
| 2416 | struct bfa_ioim_s *ioim = cbarg; |
| 2417 | struct bfi_ioim_rsp_s *m; |
| 2418 | u8 *snsinfo = NULL; |
| 2419 | u8 sns_len = 0; |
| 2420 | s32 residue = 0; |
| 2421 | |
| 2422 | if (!complete) { |
| 2423 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2424 | return; |
| 2425 | } |
| 2426 | |
| 2427 | m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg; |
| 2428 | if (m->io_status == BFI_IOIM_STS_OK) { |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2429 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2430 | * setup sense information, if present |
| 2431 | */ |
| 2432 | if ((m->scsi_status == SCSI_STATUS_CHECK_CONDITION) && |
| 2433 | m->sns_len) { |
| 2434 | sns_len = m->sns_len; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 2435 | snsinfo = BFA_SNSINFO_FROM_TAG(ioim->fcpim->fcp, |
| 2436 | ioim->iotag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2437 | } |
| 2438 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2439 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2440 | * setup residue value correctly for normal completions |
| 2441 | */ |
| 2442 | if (m->resid_flags == FCP_RESID_UNDER) { |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 2443 | residue = be32_to_cpu(m->residue); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2444 | bfa_stats(ioim->itnim, iocomp_underrun); |
| 2445 | } |
| 2446 | if (m->resid_flags == FCP_RESID_OVER) { |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 2447 | residue = be32_to_cpu(m->residue); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2448 | residue = -residue; |
| 2449 | bfa_stats(ioim->itnim, iocomp_overrun); |
| 2450 | } |
| 2451 | } |
| 2452 | |
| 2453 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, m->io_status, |
| 2454 | m->scsi_status, sns_len, snsinfo, residue); |
| 2455 | } |
| 2456 | |
| 2457 | static void |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2458 | __bfa_cb_ioim_lm_lun_not_sup(void *cbarg, bfa_boolean_t complete) |
| 2459 | { |
| 2460 | struct bfa_ioim_s *ioim = cbarg; |
| 2461 | int sns_len = 0xD; |
| 2462 | u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio); |
| 2463 | struct scsi_sense_s *snsinfo; |
| 2464 | |
| 2465 | if (!complete) { |
| 2466 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2467 | return; |
| 2468 | } |
| 2469 | |
| 2470 | snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG( |
| 2471 | ioim->fcpim->fcp, ioim->iotag); |
| 2472 | snsinfo->rsp_code = SCSI_SENSE_CUR_ERR; |
| 2473 | snsinfo->add_sense_length = 0xa; |
| 2474 | snsinfo->asc = SCSI_ASC_LUN_NOT_SUPPORTED; |
| 2475 | snsinfo->sense_key = ILLEGAL_REQUEST; |
| 2476 | bfa_trc(ioim->bfa, residue); |
| 2477 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK, |
| 2478 | SCSI_STATUS_CHECK_CONDITION, sns_len, |
| 2479 | (u8 *)snsinfo, residue); |
| 2480 | } |
| 2481 | |
| 2482 | static void |
| 2483 | __bfa_cb_ioim_lm_rpl_dc(void *cbarg, bfa_boolean_t complete) |
| 2484 | { |
| 2485 | struct bfa_ioim_s *ioim = cbarg; |
| 2486 | int sns_len = 0xD; |
| 2487 | u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio); |
| 2488 | struct scsi_sense_s *snsinfo; |
| 2489 | |
| 2490 | if (!complete) { |
| 2491 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2492 | return; |
| 2493 | } |
| 2494 | |
| 2495 | snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG(ioim->fcpim->fcp, |
| 2496 | ioim->iotag); |
| 2497 | snsinfo->rsp_code = SCSI_SENSE_CUR_ERR; |
| 2498 | snsinfo->sense_key = SCSI_MP_IEC_UNIT_ATTN; |
| 2499 | snsinfo->asc = SCSI_ASC_TOCC; |
| 2500 | snsinfo->add_sense_length = 0x6; |
| 2501 | snsinfo->ascq = SCSI_ASCQ_RL_DATA_CHANGED; |
| 2502 | bfa_trc(ioim->bfa, residue); |
| 2503 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK, |
| 2504 | SCSI_STATUS_CHECK_CONDITION, sns_len, |
| 2505 | (u8 *)snsinfo, residue); |
| 2506 | } |
| 2507 | |
| 2508 | static void |
| 2509 | __bfa_cb_ioim_lm_lun_not_rdy(void *cbarg, bfa_boolean_t complete) |
| 2510 | { |
| 2511 | struct bfa_ioim_s *ioim = cbarg; |
| 2512 | int sns_len = 0xD; |
| 2513 | u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio); |
| 2514 | struct scsi_sense_s *snsinfo; |
| 2515 | |
| 2516 | if (!complete) { |
| 2517 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2518 | return; |
| 2519 | } |
| 2520 | |
| 2521 | snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG( |
| 2522 | ioim->fcpim->fcp, ioim->iotag); |
| 2523 | snsinfo->rsp_code = SCSI_SENSE_CUR_ERR; |
| 2524 | snsinfo->add_sense_length = 0xa; |
| 2525 | snsinfo->sense_key = NOT_READY; |
| 2526 | snsinfo->asc = SCSI_ASC_LUN_NOT_READY; |
| 2527 | snsinfo->ascq = SCSI_ASCQ_MAN_INTR_REQ; |
| 2528 | bfa_trc(ioim->bfa, residue); |
| 2529 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK, |
| 2530 | SCSI_STATUS_CHECK_CONDITION, sns_len, |
| 2531 | (u8 *)snsinfo, residue); |
| 2532 | } |
| 2533 | |
| 2534 | void |
| 2535 | bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn, wwn_t rp_wwn, |
| 2536 | u16 rp_tag, u8 lp_tag) |
| 2537 | { |
| 2538 | struct bfa_lun_mask_s *lun_list; |
| 2539 | u8 i; |
| 2540 | |
| 2541 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2542 | return; |
| 2543 | |
| 2544 | lun_list = bfa_get_lun_mask_list(bfa); |
| 2545 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2546 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE) { |
| 2547 | if ((lun_list[i].lp_wwn == lp_wwn) && |
| 2548 | (lun_list[i].rp_wwn == rp_wwn)) { |
| 2549 | lun_list[i].rp_tag = rp_tag; |
| 2550 | lun_list[i].lp_tag = lp_tag; |
| 2551 | } |
| 2552 | } |
| 2553 | } |
| 2554 | } |
| 2555 | |
Krishna Gudipati | 4c5d22b | 2011-07-20 17:04:24 -0700 | [diff] [blame] | 2556 | /* |
| 2557 | * set UA for all active luns in LM DB |
| 2558 | */ |
| 2559 | static void |
| 2560 | bfa_ioim_lm_set_ua(struct bfa_s *bfa) |
| 2561 | { |
| 2562 | struct bfa_lun_mask_s *lunm_list; |
| 2563 | int i; |
| 2564 | |
| 2565 | lunm_list = bfa_get_lun_mask_list(bfa); |
| 2566 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2567 | if (lunm_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) |
| 2568 | continue; |
| 2569 | lunm_list[i].ua = BFA_IOIM_LM_UA_SET; |
| 2570 | } |
| 2571 | } |
| 2572 | |
| 2573 | bfa_status_t |
| 2574 | bfa_fcpim_lunmask_update(struct bfa_s *bfa, u32 update) |
| 2575 | { |
| 2576 | struct bfa_lunmask_cfg_s *lun_mask; |
| 2577 | |
| 2578 | bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); |
| 2579 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2580 | return BFA_STATUS_FAILED; |
| 2581 | |
| 2582 | if (bfa_get_lun_mask_status(bfa) == update) |
| 2583 | return BFA_STATUS_NO_CHANGE; |
| 2584 | |
| 2585 | lun_mask = bfa_get_lun_mask(bfa); |
| 2586 | lun_mask->status = update; |
| 2587 | |
| 2588 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) |
| 2589 | bfa_ioim_lm_set_ua(bfa); |
| 2590 | |
| 2591 | return bfa_dconf_update(bfa); |
| 2592 | } |
| 2593 | |
| 2594 | bfa_status_t |
| 2595 | bfa_fcpim_lunmask_clear(struct bfa_s *bfa) |
| 2596 | { |
| 2597 | int i; |
| 2598 | struct bfa_lun_mask_s *lunm_list; |
| 2599 | |
| 2600 | bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); |
| 2601 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2602 | return BFA_STATUS_FAILED; |
| 2603 | |
| 2604 | lunm_list = bfa_get_lun_mask_list(bfa); |
| 2605 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2606 | if (lunm_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE) { |
| 2607 | if (lunm_list[i].rp_tag != BFA_RPORT_TAG_INVALID) |
| 2608 | bfa_rport_unset_lunmask(bfa, |
| 2609 | BFA_RPORT_FROM_TAG(bfa, lunm_list[i].rp_tag)); |
| 2610 | } |
| 2611 | } |
| 2612 | |
| 2613 | memset(lunm_list, 0, sizeof(struct bfa_lun_mask_s) * MAX_LUN_MASK_CFG); |
| 2614 | return bfa_dconf_update(bfa); |
| 2615 | } |
| 2616 | |
| 2617 | bfa_status_t |
| 2618 | bfa_fcpim_lunmask_query(struct bfa_s *bfa, void *buf) |
| 2619 | { |
| 2620 | struct bfa_lunmask_cfg_s *lun_mask; |
| 2621 | |
| 2622 | bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); |
| 2623 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2624 | return BFA_STATUS_FAILED; |
| 2625 | |
| 2626 | lun_mask = bfa_get_lun_mask(bfa); |
| 2627 | memcpy(buf, lun_mask, sizeof(struct bfa_lunmask_cfg_s)); |
| 2628 | return BFA_STATUS_OK; |
| 2629 | } |
| 2630 | |
| 2631 | bfa_status_t |
| 2632 | bfa_fcpim_lunmask_add(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, |
| 2633 | wwn_t rpwwn, struct scsi_lun lun) |
| 2634 | { |
| 2635 | struct bfa_lun_mask_s *lunm_list; |
| 2636 | struct bfa_rport_s *rp = NULL; |
| 2637 | int i, free_index = MAX_LUN_MASK_CFG + 1; |
| 2638 | struct bfa_fcs_lport_s *port = NULL; |
| 2639 | struct bfa_fcs_rport_s *rp_fcs; |
| 2640 | |
| 2641 | bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); |
| 2642 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2643 | return BFA_STATUS_FAILED; |
| 2644 | |
| 2645 | port = bfa_fcs_lookup_port(&((struct bfad_s *)bfa->bfad)->bfa_fcs, |
| 2646 | vf_id, *pwwn); |
| 2647 | if (port) { |
| 2648 | *pwwn = port->port_cfg.pwwn; |
| 2649 | rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn); |
| 2650 | rp = rp_fcs->bfa_rport; |
| 2651 | } |
| 2652 | |
| 2653 | lunm_list = bfa_get_lun_mask_list(bfa); |
| 2654 | /* if entry exists */ |
| 2655 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2656 | if (lunm_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE) |
| 2657 | free_index = i; |
| 2658 | if ((lunm_list[i].lp_wwn == *pwwn) && |
| 2659 | (lunm_list[i].rp_wwn == rpwwn) && |
| 2660 | (scsilun_to_int((struct scsi_lun *)&lunm_list[i].lun) == |
| 2661 | scsilun_to_int((struct scsi_lun *)&lun))) |
| 2662 | return BFA_STATUS_ENTRY_EXISTS; |
| 2663 | } |
| 2664 | |
| 2665 | if (free_index > MAX_LUN_MASK_CFG) |
| 2666 | return BFA_STATUS_MAX_ENTRY_REACHED; |
| 2667 | |
| 2668 | if (rp) { |
| 2669 | lunm_list[free_index].lp_tag = bfa_lps_get_tag_from_pid(bfa, |
| 2670 | rp->rport_info.local_pid); |
| 2671 | lunm_list[free_index].rp_tag = rp->rport_tag; |
| 2672 | } else { |
| 2673 | lunm_list[free_index].lp_tag = BFA_LP_TAG_INVALID; |
| 2674 | lunm_list[free_index].rp_tag = BFA_RPORT_TAG_INVALID; |
| 2675 | } |
| 2676 | |
| 2677 | lunm_list[free_index].lp_wwn = *pwwn; |
| 2678 | lunm_list[free_index].rp_wwn = rpwwn; |
| 2679 | lunm_list[free_index].lun = lun; |
| 2680 | lunm_list[free_index].state = BFA_IOIM_LUN_MASK_ACTIVE; |
| 2681 | |
| 2682 | /* set for all luns in this rp */ |
| 2683 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2684 | if ((lunm_list[i].lp_wwn == *pwwn) && |
| 2685 | (lunm_list[i].rp_wwn == rpwwn)) |
| 2686 | lunm_list[i].ua = BFA_IOIM_LM_UA_SET; |
| 2687 | } |
| 2688 | |
| 2689 | return bfa_dconf_update(bfa); |
| 2690 | } |
| 2691 | |
| 2692 | bfa_status_t |
| 2693 | bfa_fcpim_lunmask_delete(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn, |
| 2694 | wwn_t rpwwn, struct scsi_lun lun) |
| 2695 | { |
| 2696 | struct bfa_lun_mask_s *lunm_list; |
| 2697 | struct bfa_rport_s *rp = NULL; |
| 2698 | struct bfa_fcs_lport_s *port = NULL; |
| 2699 | struct bfa_fcs_rport_s *rp_fcs; |
| 2700 | int i; |
| 2701 | |
| 2702 | /* in min cfg lunm_list could be NULL but no commands should run. */ |
| 2703 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG) |
| 2704 | return BFA_STATUS_FAILED; |
| 2705 | |
| 2706 | bfa_trc(bfa, bfa_get_lun_mask_status(bfa)); |
| 2707 | bfa_trc(bfa, *pwwn); |
| 2708 | bfa_trc(bfa, rpwwn); |
| 2709 | bfa_trc(bfa, scsilun_to_int((struct scsi_lun *)&lun)); |
| 2710 | |
| 2711 | if (*pwwn == 0) { |
| 2712 | port = bfa_fcs_lookup_port( |
| 2713 | &((struct bfad_s *)bfa->bfad)->bfa_fcs, |
| 2714 | vf_id, *pwwn); |
| 2715 | if (port) { |
| 2716 | *pwwn = port->port_cfg.pwwn; |
| 2717 | rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn); |
| 2718 | rp = rp_fcs->bfa_rport; |
| 2719 | } |
| 2720 | } |
| 2721 | |
| 2722 | lunm_list = bfa_get_lun_mask_list(bfa); |
| 2723 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2724 | if ((lunm_list[i].lp_wwn == *pwwn) && |
| 2725 | (lunm_list[i].rp_wwn == rpwwn) && |
| 2726 | (scsilun_to_int((struct scsi_lun *)&lunm_list[i].lun) == |
| 2727 | scsilun_to_int((struct scsi_lun *)&lun))) { |
| 2728 | lunm_list[i].lp_wwn = 0; |
| 2729 | lunm_list[i].rp_wwn = 0; |
| 2730 | int_to_scsilun(0, &lunm_list[i].lun); |
| 2731 | lunm_list[i].state = BFA_IOIM_LUN_MASK_INACTIVE; |
| 2732 | if (lunm_list[i].rp_tag != BFA_RPORT_TAG_INVALID) { |
| 2733 | lunm_list[i].rp_tag = BFA_RPORT_TAG_INVALID; |
| 2734 | lunm_list[i].lp_tag = BFA_LP_TAG_INVALID; |
| 2735 | } |
| 2736 | return bfa_dconf_update(bfa); |
| 2737 | } |
| 2738 | } |
| 2739 | |
| 2740 | /* set for all luns in this rp */ |
| 2741 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { |
| 2742 | if ((lunm_list[i].lp_wwn == *pwwn) && |
| 2743 | (lunm_list[i].rp_wwn == rpwwn)) |
| 2744 | lunm_list[i].ua = BFA_IOIM_LM_UA_SET; |
| 2745 | } |
| 2746 | |
| 2747 | return BFA_STATUS_ENTRY_NOT_EXISTS; |
| 2748 | } |
| 2749 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2750 | static void |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2751 | __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete) |
| 2752 | { |
| 2753 | struct bfa_ioim_s *ioim = cbarg; |
| 2754 | |
| 2755 | if (!complete) { |
| 2756 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2757 | return; |
| 2758 | } |
| 2759 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2760 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2761 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_ABORTED, |
| 2762 | 0, 0, NULL, 0); |
| 2763 | } |
| 2764 | |
| 2765 | static void |
| 2766 | __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete) |
| 2767 | { |
| 2768 | struct bfa_ioim_s *ioim = cbarg; |
| 2769 | |
| 2770 | bfa_stats(ioim->itnim, path_tov_expired); |
| 2771 | if (!complete) { |
| 2772 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2773 | return; |
| 2774 | } |
| 2775 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2776 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2777 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_PATHTOV, |
| 2778 | 0, 0, NULL, 0); |
| 2779 | } |
| 2780 | |
| 2781 | static void |
| 2782 | __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete) |
| 2783 | { |
| 2784 | struct bfa_ioim_s *ioim = cbarg; |
| 2785 | |
| 2786 | if (!complete) { |
| 2787 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); |
| 2788 | return; |
| 2789 | } |
| 2790 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 2791 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2792 | bfa_cb_ioim_abort(ioim->bfa->bfad, ioim->dio); |
| 2793 | } |
| 2794 | |
| 2795 | static void |
| 2796 | bfa_ioim_sgpg_alloced(void *cbarg) |
| 2797 | { |
| 2798 | struct bfa_ioim_s *ioim = cbarg; |
| 2799 | |
| 2800 | ioim->nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); |
| 2801 | list_splice_tail_init(&ioim->iosp->sgpg_wqe.sgpg_q, &ioim->sgpg_q); |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2802 | ioim->sgpg = bfa_q_first(&ioim->sgpg_q); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2803 | bfa_sm_send_event(ioim, BFA_IOIM_SM_SGALLOCED); |
| 2804 | } |
| 2805 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2806 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2807 | * Send I/O request to firmware. |
| 2808 | */ |
| 2809 | static bfa_boolean_t |
| 2810 | bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim) |
| 2811 | { |
| 2812 | struct bfa_itnim_s *itnim = ioim->itnim; |
| 2813 | struct bfi_ioim_req_s *m; |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 2814 | static struct fcp_cmnd_s cmnd_z0 = { { { 0 } } }; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2815 | struct bfi_sge_s *sge, *sgpge; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2816 | u32 pgdlen = 0; |
| 2817 | u32 fcp_dl; |
| 2818 | u64 addr; |
| 2819 | struct scatterlist *sg; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2820 | struct bfa_sgpg_s *sgpg; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2821 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2822 | u32 i, sge_id, pgcumsz; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 2823 | enum dma_data_direction dmadir; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2824 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2825 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2826 | * check for room in queue to send request now |
| 2827 | */ |
| 2828 | m = bfa_reqq_next(ioim->bfa, ioim->reqq); |
| 2829 | if (!m) { |
| 2830 | bfa_stats(ioim->itnim, qwait); |
| 2831 | bfa_reqq_wait(ioim->bfa, ioim->reqq, |
| 2832 | &ioim->iosp->reqq_wait); |
| 2833 | return BFA_FALSE; |
| 2834 | } |
| 2835 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2836 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2837 | * build i/o request message next |
| 2838 | */ |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 2839 | m->io_tag = cpu_to_be16(ioim->iotag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2840 | m->rport_hdl = ioim->itnim->rport->fw_handle; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 2841 | m->io_timeout = 0; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2842 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2843 | sge = &m->sges[0]; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2844 | sgpg = ioim->sgpg; |
| 2845 | sge_id = 0; |
| 2846 | sgpge = NULL; |
| 2847 | pgcumsz = 0; |
| 2848 | scsi_for_each_sg(cmnd, sg, ioim->nsges, i) { |
| 2849 | if (i == 0) { |
| 2850 | /* build inline IO SG element */ |
Maggie Zhang | f16a175 | 2010-12-09 19:12:32 -0800 | [diff] [blame] | 2851 | addr = bfa_sgaddr_le(sg_dma_address(sg)); |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2852 | sge->sga = *(union bfi_addr_u *) &addr; |
| 2853 | pgdlen = sg_dma_len(sg); |
| 2854 | sge->sg_len = pgdlen; |
| 2855 | sge->flags = (ioim->nsges > BFI_SGE_INLINE) ? |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2856 | BFI_SGE_DATA_CPL : BFI_SGE_DATA_LAST; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2857 | bfa_sge_to_be(sge); |
| 2858 | sge++; |
| 2859 | } else { |
| 2860 | if (sge_id == 0) |
| 2861 | sgpge = sgpg->sgpg->sges; |
| 2862 | |
Maggie Zhang | f16a175 | 2010-12-09 19:12:32 -0800 | [diff] [blame] | 2863 | addr = bfa_sgaddr_le(sg_dma_address(sg)); |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2864 | sgpge->sga = *(union bfi_addr_u *) &addr; |
| 2865 | sgpge->sg_len = sg_dma_len(sg); |
| 2866 | pgcumsz += sgpge->sg_len; |
| 2867 | |
| 2868 | /* set flags */ |
| 2869 | if (i < (ioim->nsges - 1) && |
| 2870 | sge_id < (BFI_SGPG_DATA_SGES - 1)) |
| 2871 | sgpge->flags = BFI_SGE_DATA; |
| 2872 | else if (i < (ioim->nsges - 1)) |
| 2873 | sgpge->flags = BFI_SGE_DATA_CPL; |
| 2874 | else |
| 2875 | sgpge->flags = BFI_SGE_DATA_LAST; |
| 2876 | |
| 2877 | bfa_sge_to_le(sgpge); |
| 2878 | |
| 2879 | sgpge++; |
| 2880 | if (i == (ioim->nsges - 1)) { |
| 2881 | sgpge->flags = BFI_SGE_PGDLEN; |
| 2882 | sgpge->sga.a32.addr_lo = 0; |
| 2883 | sgpge->sga.a32.addr_hi = 0; |
| 2884 | sgpge->sg_len = pgcumsz; |
| 2885 | bfa_sge_to_le(sgpge); |
| 2886 | } else if (++sge_id == BFI_SGPG_DATA_SGES) { |
| 2887 | sgpg = (struct bfa_sgpg_s *) bfa_q_next(sgpg); |
| 2888 | sgpge->flags = BFI_SGE_LINK; |
| 2889 | sgpge->sga = sgpg->sgpg_pa; |
| 2890 | sgpge->sg_len = pgcumsz; |
| 2891 | bfa_sge_to_le(sgpge); |
| 2892 | sge_id = 0; |
| 2893 | pgcumsz = 0; |
| 2894 | } |
| 2895 | } |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2896 | } |
| 2897 | |
| 2898 | if (ioim->nsges > BFI_SGE_INLINE) { |
| 2899 | sge->sga = ioim->sgpg->sgpg_pa; |
| 2900 | } else { |
| 2901 | sge->sga.a32.addr_lo = 0; |
| 2902 | sge->sga.a32.addr_hi = 0; |
| 2903 | } |
| 2904 | sge->sg_len = pgdlen; |
| 2905 | sge->flags = BFI_SGE_PGDLEN; |
| 2906 | bfa_sge_to_be(sge); |
| 2907 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2908 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2909 | * set up I/O command parameters |
| 2910 | */ |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 2911 | m->cmnd = cmnd_z0; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 2912 | int_to_scsilun(cmnd->device->lun, &m->cmnd.lun); |
| 2913 | dmadir = cmnd->sc_data_direction; |
| 2914 | if (dmadir == DMA_TO_DEVICE) |
| 2915 | m->cmnd.iodir = FCP_IODIR_WRITE; |
| 2916 | else if (dmadir == DMA_FROM_DEVICE) |
| 2917 | m->cmnd.iodir = FCP_IODIR_READ; |
| 2918 | else |
| 2919 | m->cmnd.iodir = FCP_IODIR_NONE; |
| 2920 | |
Jing Huang | 8f4bfad | 2010-12-26 21:50:10 -0800 | [diff] [blame] | 2921 | m->cmnd.cdb = *(struct scsi_cdb_s *) cmnd->cmnd; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 2922 | fcp_dl = scsi_bufflen(cmnd); |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 2923 | m->cmnd.fcp_dl = cpu_to_be32(fcp_dl); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2924 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2925 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2926 | * set up I/O message header |
| 2927 | */ |
| 2928 | switch (m->cmnd.iodir) { |
| 2929 | case FCP_IODIR_READ: |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 2930 | bfi_h2i_set(m->mh, BFI_MC_IOIM_READ, 0, bfa_fn_lpu(ioim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2931 | bfa_stats(itnim, input_reqs); |
| 2932 | ioim->itnim->stats.rd_throughput += fcp_dl; |
| 2933 | break; |
| 2934 | case FCP_IODIR_WRITE: |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 2935 | bfi_h2i_set(m->mh, BFI_MC_IOIM_WRITE, 0, bfa_fn_lpu(ioim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2936 | bfa_stats(itnim, output_reqs); |
| 2937 | ioim->itnim->stats.wr_throughput += fcp_dl; |
| 2938 | break; |
| 2939 | case FCP_IODIR_RW: |
| 2940 | bfa_stats(itnim, input_reqs); |
| 2941 | bfa_stats(itnim, output_reqs); |
| 2942 | default: |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 2943 | bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_fn_lpu(ioim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2944 | } |
| 2945 | if (itnim->seq_rec || |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 2946 | (scsi_bufflen(cmnd) & (sizeof(u32) - 1))) |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 2947 | bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_fn_lpu(ioim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2948 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2949 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2950 | * queue I/O message to firmware |
| 2951 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 2952 | bfa_reqq_produce(ioim->bfa, ioim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2953 | return BFA_TRUE; |
| 2954 | } |
| 2955 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2956 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2957 | * Setup any additional SG pages needed.Inline SG element is setup |
| 2958 | * at queuing time. |
| 2959 | */ |
| 2960 | static bfa_boolean_t |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2961 | bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2962 | { |
| 2963 | u16 nsgpgs; |
| 2964 | |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 2965 | WARN_ON(ioim->nsges <= BFI_SGE_INLINE); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2966 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2967 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2968 | * allocate SG pages needed |
| 2969 | */ |
| 2970 | nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); |
| 2971 | if (!nsgpgs) |
| 2972 | return BFA_TRUE; |
| 2973 | |
| 2974 | if (bfa_sgpg_malloc(ioim->bfa, &ioim->sgpg_q, nsgpgs) |
| 2975 | != BFA_STATUS_OK) { |
| 2976 | bfa_sgpg_wait(ioim->bfa, &ioim->iosp->sgpg_wqe, nsgpgs); |
| 2977 | return BFA_FALSE; |
| 2978 | } |
| 2979 | |
| 2980 | ioim->nsgpgs = nsgpgs; |
Maggie Zhang | e3e7d3e | 2010-12-09 19:10:27 -0800 | [diff] [blame] | 2981 | ioim->sgpg = bfa_q_first(&ioim->sgpg_q); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2982 | |
| 2983 | return BFA_TRUE; |
| 2984 | } |
| 2985 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2986 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2987 | * Send I/O abort request to firmware. |
| 2988 | */ |
| 2989 | static bfa_boolean_t |
| 2990 | bfa_ioim_send_abort(struct bfa_ioim_s *ioim) |
| 2991 | { |
| 2992 | struct bfi_ioim_abort_req_s *m; |
| 2993 | enum bfi_ioim_h2i msgop; |
| 2994 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 2995 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 2996 | * check for room in queue to send request now |
| 2997 | */ |
| 2998 | m = bfa_reqq_next(ioim->bfa, ioim->reqq); |
| 2999 | if (!m) |
| 3000 | return BFA_FALSE; |
| 3001 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3002 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3003 | * build i/o request message next |
| 3004 | */ |
| 3005 | if (ioim->iosp->abort_explicit) |
| 3006 | msgop = BFI_IOIM_H2I_IOABORT_REQ; |
| 3007 | else |
| 3008 | msgop = BFI_IOIM_H2I_IOCLEANUP_REQ; |
| 3009 | |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3010 | bfi_h2i_set(m->mh, BFI_MC_IOIM, msgop, bfa_fn_lpu(ioim->bfa)); |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3011 | m->io_tag = cpu_to_be16(ioim->iotag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3012 | m->abort_tag = ++ioim->abort_tag; |
| 3013 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3014 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3015 | * queue I/O message to firmware |
| 3016 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3017 | bfa_reqq_produce(ioim->bfa, ioim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3018 | return BFA_TRUE; |
| 3019 | } |
| 3020 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3021 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3022 | * Call to resume any I/O requests waiting for room in request queue. |
| 3023 | */ |
| 3024 | static void |
| 3025 | bfa_ioim_qresume(void *cbarg) |
| 3026 | { |
| 3027 | struct bfa_ioim_s *ioim = cbarg; |
| 3028 | |
| 3029 | bfa_stats(ioim->itnim, qresumes); |
| 3030 | bfa_sm_send_event(ioim, BFA_IOIM_SM_QRESUME); |
| 3031 | } |
| 3032 | |
| 3033 | |
| 3034 | static void |
| 3035 | bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim) |
| 3036 | { |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3037 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3038 | * Move IO from itnim queue to fcpim global queue since itnim will be |
| 3039 | * freed. |
| 3040 | */ |
| 3041 | list_del(&ioim->qe); |
| 3042 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); |
| 3043 | |
| 3044 | if (!ioim->iosp->tskim) { |
| 3045 | if (ioim->fcpim->delay_comp && ioim->itnim->iotov_active) { |
| 3046 | bfa_cb_dequeue(&ioim->hcb_qe); |
| 3047 | list_del(&ioim->qe); |
| 3048 | list_add_tail(&ioim->qe, &ioim->itnim->delay_comp_q); |
| 3049 | } |
| 3050 | bfa_itnim_iodone(ioim->itnim); |
| 3051 | } else |
Maggie Zhang | f7f73812 | 2010-12-09 19:08:43 -0800 | [diff] [blame] | 3052 | bfa_wc_down(&ioim->iosp->tskim->wc); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3053 | } |
| 3054 | |
| 3055 | static bfa_boolean_t |
| 3056 | bfa_ioim_is_abortable(struct bfa_ioim_s *ioim) |
| 3057 | { |
| 3058 | if ((bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit) && |
| 3059 | (!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim))) || |
| 3060 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort)) || |
| 3061 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort_qfull)) || |
| 3062 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb)) || |
| 3063 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb_free)) || |
| 3064 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_resfree))) |
| 3065 | return BFA_FALSE; |
| 3066 | |
| 3067 | return BFA_TRUE; |
| 3068 | } |
| 3069 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3070 | void |
| 3071 | bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov) |
| 3072 | { |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3073 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3074 | * If path tov timer expired, failback with PATHTOV status - these |
| 3075 | * IO requests are not normally retried by IO stack. |
| 3076 | * |
| 3077 | * Otherwise device cameback online and fail it with normal failed |
| 3078 | * status so that IO stack retries these failed IO requests. |
| 3079 | */ |
| 3080 | if (iotov) |
| 3081 | ioim->io_cbfn = __bfa_cb_ioim_pathtov; |
| 3082 | else { |
| 3083 | ioim->io_cbfn = __bfa_cb_ioim_failed; |
| 3084 | bfa_stats(ioim->itnim, iocom_nexus_abort); |
| 3085 | } |
| 3086 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); |
| 3087 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3088 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3089 | * Move IO to fcpim global queue since itnim will be |
| 3090 | * freed. |
| 3091 | */ |
| 3092 | list_del(&ioim->qe); |
| 3093 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); |
| 3094 | } |
| 3095 | |
| 3096 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3097 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3098 | * Memory allocation and initialization. |
| 3099 | */ |
| 3100 | void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3101 | bfa_ioim_attach(struct bfa_fcpim_s *fcpim) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3102 | { |
| 3103 | struct bfa_ioim_s *ioim; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3104 | struct bfa_fcp_mod_s *fcp = fcpim->fcp; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3105 | struct bfa_ioim_sp_s *iosp; |
| 3106 | u16 i; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3107 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3108 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3109 | * claim memory first |
| 3110 | */ |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3111 | ioim = (struct bfa_ioim_s *) bfa_mem_kva_curp(fcp); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3112 | fcpim->ioim_arr = ioim; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3113 | bfa_mem_kva_curp(fcp) = (u8 *) (ioim + fcpim->fcp->num_ioim_reqs); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3114 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3115 | iosp = (struct bfa_ioim_sp_s *) bfa_mem_kva_curp(fcp); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3116 | fcpim->ioim_sp_arr = iosp; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3117 | bfa_mem_kva_curp(fcp) = (u8 *) (iosp + fcpim->fcp->num_ioim_reqs); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3118 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3119 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3120 | * Initialize ioim free queues |
| 3121 | */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3122 | INIT_LIST_HEAD(&fcpim->ioim_resfree_q); |
| 3123 | INIT_LIST_HEAD(&fcpim->ioim_comp_q); |
| 3124 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3125 | for (i = 0; i < fcpim->fcp->num_ioim_reqs; |
| 3126 | i++, ioim++, iosp++) { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3127 | /* |
| 3128 | * initialize IOIM |
| 3129 | */ |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 3130 | memset(ioim, 0, sizeof(struct bfa_ioim_s)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3131 | ioim->iotag = i; |
| 3132 | ioim->bfa = fcpim->bfa; |
| 3133 | ioim->fcpim = fcpim; |
| 3134 | ioim->iosp = iosp; |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3135 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3136 | INIT_LIST_HEAD(&ioim->sgpg_q); |
| 3137 | bfa_reqq_winit(&ioim->iosp->reqq_wait, |
| 3138 | bfa_ioim_qresume, ioim); |
| 3139 | bfa_sgpg_winit(&ioim->iosp->sgpg_wqe, |
| 3140 | bfa_ioim_sgpg_alloced, ioim); |
| 3141 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3142 | } |
| 3143 | } |
| 3144 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3145 | void |
| 3146 | bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) |
| 3147 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3148 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3149 | struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; |
| 3150 | struct bfa_ioim_s *ioim; |
| 3151 | u16 iotag; |
| 3152 | enum bfa_ioim_event evt = BFA_IOIM_SM_COMP; |
| 3153 | |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3154 | iotag = be16_to_cpu(rsp->io_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3155 | |
| 3156 | ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3157 | WARN_ON(ioim->iotag != iotag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3158 | |
| 3159 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3160 | bfa_trc(ioim->bfa, rsp->io_status); |
| 3161 | bfa_trc(ioim->bfa, rsp->reuse_io_tag); |
| 3162 | |
| 3163 | if (bfa_sm_cmp_state(ioim, bfa_ioim_sm_active)) |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 3164 | ioim->iosp->comp_rspmsg = *m; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3165 | |
| 3166 | switch (rsp->io_status) { |
| 3167 | case BFI_IOIM_STS_OK: |
| 3168 | bfa_stats(ioim->itnim, iocomp_ok); |
| 3169 | if (rsp->reuse_io_tag == 0) |
| 3170 | evt = BFA_IOIM_SM_DONE; |
| 3171 | else |
| 3172 | evt = BFA_IOIM_SM_COMP; |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3173 | ioim->proc_rsp_data(ioim); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3174 | break; |
| 3175 | |
| 3176 | case BFI_IOIM_STS_TIMEDOUT: |
| 3177 | bfa_stats(ioim->itnim, iocomp_timedout); |
| 3178 | case BFI_IOIM_STS_ABORTED: |
| 3179 | rsp->io_status = BFI_IOIM_STS_ABORTED; |
| 3180 | bfa_stats(ioim->itnim, iocomp_aborted); |
| 3181 | if (rsp->reuse_io_tag == 0) |
| 3182 | evt = BFA_IOIM_SM_DONE; |
| 3183 | else |
| 3184 | evt = BFA_IOIM_SM_COMP; |
| 3185 | break; |
| 3186 | |
| 3187 | case BFI_IOIM_STS_PROTO_ERR: |
| 3188 | bfa_stats(ioim->itnim, iocom_proto_err); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3189 | WARN_ON(!rsp->reuse_io_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3190 | evt = BFA_IOIM_SM_COMP; |
| 3191 | break; |
| 3192 | |
| 3193 | case BFI_IOIM_STS_SQER_NEEDED: |
| 3194 | bfa_stats(ioim->itnim, iocom_sqer_needed); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3195 | WARN_ON(rsp->reuse_io_tag != 0); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3196 | evt = BFA_IOIM_SM_SQRETRY; |
| 3197 | break; |
| 3198 | |
| 3199 | case BFI_IOIM_STS_RES_FREE: |
| 3200 | bfa_stats(ioim->itnim, iocom_res_free); |
| 3201 | evt = BFA_IOIM_SM_FREE; |
| 3202 | break; |
| 3203 | |
| 3204 | case BFI_IOIM_STS_HOST_ABORTED: |
| 3205 | bfa_stats(ioim->itnim, iocom_hostabrts); |
| 3206 | if (rsp->abort_tag != ioim->abort_tag) { |
| 3207 | bfa_trc(ioim->bfa, rsp->abort_tag); |
| 3208 | bfa_trc(ioim->bfa, ioim->abort_tag); |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3209 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3210 | return; |
| 3211 | } |
| 3212 | |
| 3213 | if (rsp->reuse_io_tag) |
| 3214 | evt = BFA_IOIM_SM_ABORT_COMP; |
| 3215 | else |
| 3216 | evt = BFA_IOIM_SM_ABORT_DONE; |
| 3217 | break; |
| 3218 | |
| 3219 | case BFI_IOIM_STS_UTAG: |
| 3220 | bfa_stats(ioim->itnim, iocom_utags); |
| 3221 | evt = BFA_IOIM_SM_COMP_UTAG; |
| 3222 | break; |
| 3223 | |
| 3224 | default: |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3225 | WARN_ON(1); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3226 | } |
| 3227 | |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3228 | ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3229 | bfa_sm_send_event(ioim, evt); |
| 3230 | } |
| 3231 | |
| 3232 | void |
| 3233 | bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m) |
| 3234 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3235 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3236 | struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; |
| 3237 | struct bfa_ioim_s *ioim; |
| 3238 | u16 iotag; |
| 3239 | |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3240 | iotag = be16_to_cpu(rsp->io_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3241 | |
| 3242 | ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3243 | WARN_ON(BFA_IOIM_TAG_2_ID(ioim->iotag) != iotag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3244 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3245 | bfa_ioim_cb_profile_comp(fcpim, ioim); |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3246 | |
| 3247 | if (bfa_get_lun_mask_status(bfa) != BFA_LUNMASK_ENABLED) { |
| 3248 | bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD); |
| 3249 | return; |
| 3250 | } |
| 3251 | |
| 3252 | if (ioim->proc_rsp_data(ioim) == BFA_TRUE) |
| 3253 | bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD); |
| 3254 | else |
| 3255 | bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3256 | } |
| 3257 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3258 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3259 | * Called by itnim to clean up IO while going offline. |
| 3260 | */ |
| 3261 | void |
| 3262 | bfa_ioim_cleanup(struct bfa_ioim_s *ioim) |
| 3263 | { |
| 3264 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3265 | bfa_stats(ioim->itnim, io_cleanups); |
| 3266 | |
| 3267 | ioim->iosp->tskim = NULL; |
| 3268 | bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); |
| 3269 | } |
| 3270 | |
| 3271 | void |
| 3272 | bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, struct bfa_tskim_s *tskim) |
| 3273 | { |
| 3274 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3275 | bfa_stats(ioim->itnim, io_tmaborts); |
| 3276 | |
| 3277 | ioim->iosp->tskim = tskim; |
| 3278 | bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); |
| 3279 | } |
| 3280 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3281 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3282 | * IOC failure handling. |
| 3283 | */ |
| 3284 | void |
| 3285 | bfa_ioim_iocdisable(struct bfa_ioim_s *ioim) |
| 3286 | { |
| 3287 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3288 | bfa_stats(ioim->itnim, io_iocdowns); |
| 3289 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HWFAIL); |
| 3290 | } |
| 3291 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3292 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3293 | * IO offline TOV popped. Fail the pending IO. |
| 3294 | */ |
| 3295 | void |
| 3296 | bfa_ioim_tov(struct bfa_ioim_s *ioim) |
| 3297 | { |
| 3298 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3299 | bfa_sm_send_event(ioim, BFA_IOIM_SM_IOTOV); |
| 3300 | } |
| 3301 | |
| 3302 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3303 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3304 | * Allocate IOIM resource for initiator mode I/O request. |
| 3305 | */ |
| 3306 | struct bfa_ioim_s * |
| 3307 | bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio, |
| 3308 | struct bfa_itnim_s *itnim, u16 nsges) |
| 3309 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3310 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3311 | struct bfa_ioim_s *ioim; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3312 | struct bfa_iotag_s *iotag = NULL; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3313 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3314 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3315 | * alocate IOIM resource |
| 3316 | */ |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3317 | bfa_q_deq(&fcpim->fcp->iotag_ioim_free_q, &iotag); |
| 3318 | if (!iotag) { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3319 | bfa_stats(itnim, no_iotags); |
| 3320 | return NULL; |
| 3321 | } |
| 3322 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3323 | ioim = BFA_IOIM_FROM_TAG(fcpim, iotag->tag); |
| 3324 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3325 | ioim->dio = dio; |
| 3326 | ioim->itnim = itnim; |
| 3327 | ioim->nsges = nsges; |
| 3328 | ioim->nsgpgs = 0; |
| 3329 | |
| 3330 | bfa_stats(itnim, total_ios); |
| 3331 | fcpim->ios_active++; |
| 3332 | |
| 3333 | list_add_tail(&ioim->qe, &itnim->io_q); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3334 | |
| 3335 | return ioim; |
| 3336 | } |
| 3337 | |
| 3338 | void |
| 3339 | bfa_ioim_free(struct bfa_ioim_s *ioim) |
| 3340 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3341 | struct bfa_fcpim_s *fcpim = ioim->fcpim; |
| 3342 | struct bfa_iotag_s *iotag; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3343 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3344 | if (ioim->nsgpgs > 0) |
| 3345 | bfa_sgpg_mfree(ioim->bfa, &ioim->sgpg_q, ioim->nsgpgs); |
| 3346 | |
| 3347 | bfa_stats(ioim->itnim, io_comps); |
| 3348 | fcpim->ios_active--; |
| 3349 | |
Krishna Gudipati | 15821f0 | 2010-12-13 16:23:27 -0800 | [diff] [blame] | 3350 | ioim->iotag &= BFA_IOIM_IOTAG_MASK; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3351 | |
| 3352 | WARN_ON(!(ioim->iotag < |
| 3353 | (fcpim->fcp->num_ioim_reqs + fcpim->fcp->num_fwtio_reqs))); |
| 3354 | iotag = BFA_IOTAG_FROM_TAG(fcpim->fcp, ioim->iotag); |
| 3355 | |
| 3356 | if (ioim->iotag < fcpim->fcp->num_ioim_reqs) |
| 3357 | list_add_tail(&iotag->qe, &fcpim->fcp->iotag_ioim_free_q); |
| 3358 | else |
| 3359 | list_add_tail(&iotag->qe, &fcpim->fcp->iotag_tio_free_q); |
| 3360 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3361 | list_del(&ioim->qe); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3362 | } |
| 3363 | |
| 3364 | void |
| 3365 | bfa_ioim_start(struct bfa_ioim_s *ioim) |
| 3366 | { |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 3367 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio; |
| 3368 | struct bfa_lps_s *lps; |
| 3369 | enum bfa_ioim_lm_status status; |
| 3370 | struct scsi_lun scsilun; |
| 3371 | |
| 3372 | if (bfa_get_lun_mask_status(ioim->bfa) == BFA_LUNMASK_ENABLED) { |
| 3373 | lps = BFA_IOIM_TO_LPS(ioim); |
| 3374 | int_to_scsilun(cmnd->device->lun, &scsilun); |
| 3375 | status = bfa_ioim_lm_check(ioim, lps, |
| 3376 | ioim->itnim->rport, scsilun); |
| 3377 | if (status == BFA_IOIM_LM_LUN_NOT_RDY) { |
| 3378 | bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_LUN_NOT_RDY); |
| 3379 | bfa_stats(ioim->itnim, lm_lun_not_rdy); |
| 3380 | return; |
| 3381 | } |
| 3382 | |
| 3383 | if (status == BFA_IOIM_LM_LUN_NOT_SUP) { |
| 3384 | bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_LUN_NOT_SUP); |
| 3385 | bfa_stats(ioim->itnim, lm_lun_not_sup); |
| 3386 | return; |
| 3387 | } |
| 3388 | |
| 3389 | if (status == BFA_IOIM_LM_RPL_DATA_CHANGED) { |
| 3390 | bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_RPL_DC); |
| 3391 | bfa_stats(ioim->itnim, lm_rpl_data_changed); |
| 3392 | return; |
| 3393 | } |
| 3394 | } |
| 3395 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3396 | bfa_ioim_cb_profile_start(ioim->fcpim, ioim); |
| 3397 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3398 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3399 | * Obtain the queue over which this request has to be issued |
| 3400 | */ |
| 3401 | ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ? |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 3402 | BFA_FALSE : bfa_itnim_get_reqq(ioim); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3403 | |
| 3404 | bfa_sm_send_event(ioim, BFA_IOIM_SM_START); |
| 3405 | } |
| 3406 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3407 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3408 | * Driver I/O abort request. |
| 3409 | */ |
| 3410 | bfa_status_t |
| 3411 | bfa_ioim_abort(struct bfa_ioim_s *ioim) |
| 3412 | { |
| 3413 | |
| 3414 | bfa_trc(ioim->bfa, ioim->iotag); |
| 3415 | |
| 3416 | if (!bfa_ioim_is_abortable(ioim)) |
| 3417 | return BFA_STATUS_FAILED; |
| 3418 | |
| 3419 | bfa_stats(ioim->itnim, io_aborts); |
| 3420 | bfa_sm_send_event(ioim, BFA_IOIM_SM_ABORT); |
| 3421 | |
| 3422 | return BFA_STATUS_OK; |
| 3423 | } |
| 3424 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3425 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3426 | * BFA TSKIM state machine functions |
| 3427 | */ |
| 3428 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3429 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3430 | * Task management command beginning state. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3431 | */ |
| 3432 | static void |
| 3433 | bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3434 | { |
| 3435 | bfa_trc(tskim->bfa, event); |
| 3436 | |
| 3437 | switch (event) { |
| 3438 | case BFA_TSKIM_SM_START: |
| 3439 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); |
| 3440 | bfa_tskim_gather_ios(tskim); |
| 3441 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3442 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3443 | * If device is offline, do not send TM on wire. Just cleanup |
| 3444 | * any pending IO requests and complete TM request. |
| 3445 | */ |
| 3446 | if (!bfa_itnim_is_online(tskim->itnim)) { |
| 3447 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); |
| 3448 | tskim->tsk_status = BFI_TSKIM_STS_OK; |
| 3449 | bfa_tskim_cleanup_ios(tskim); |
| 3450 | return; |
| 3451 | } |
| 3452 | |
| 3453 | if (!bfa_tskim_send(tskim)) { |
| 3454 | bfa_sm_set_state(tskim, bfa_tskim_sm_qfull); |
| 3455 | bfa_stats(tskim->itnim, tm_qwait); |
| 3456 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, |
| 3457 | &tskim->reqq_wait); |
| 3458 | } |
| 3459 | break; |
| 3460 | |
| 3461 | default: |
| 3462 | bfa_sm_fault(tskim->bfa, event); |
| 3463 | } |
| 3464 | } |
| 3465 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3466 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3467 | * TM command is active, awaiting completion from firmware to |
| 3468 | * cleanup IO requests in TM scope. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3469 | */ |
| 3470 | static void |
| 3471 | bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3472 | { |
| 3473 | bfa_trc(tskim->bfa, event); |
| 3474 | |
| 3475 | switch (event) { |
| 3476 | case BFA_TSKIM_SM_DONE: |
| 3477 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); |
| 3478 | bfa_tskim_cleanup_ios(tskim); |
| 3479 | break; |
| 3480 | |
| 3481 | case BFA_TSKIM_SM_CLEANUP: |
| 3482 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); |
| 3483 | if (!bfa_tskim_send_abort(tskim)) { |
| 3484 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup_qfull); |
| 3485 | bfa_stats(tskim->itnim, tm_qwait); |
| 3486 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, |
| 3487 | &tskim->reqq_wait); |
| 3488 | } |
| 3489 | break; |
| 3490 | |
| 3491 | case BFA_TSKIM_SM_HWFAIL: |
| 3492 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3493 | bfa_tskim_iocdisable_ios(tskim); |
| 3494 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); |
| 3495 | break; |
| 3496 | |
| 3497 | default: |
| 3498 | bfa_sm_fault(tskim->bfa, event); |
| 3499 | } |
| 3500 | } |
| 3501 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3502 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3503 | * An active TM is being cleaned up since ITN is offline. Awaiting cleanup |
| 3504 | * completion event from firmware. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3505 | */ |
| 3506 | static void |
| 3507 | bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3508 | { |
| 3509 | bfa_trc(tskim->bfa, event); |
| 3510 | |
| 3511 | switch (event) { |
| 3512 | case BFA_TSKIM_SM_DONE: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3513 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3514 | * Ignore and wait for ABORT completion from firmware. |
| 3515 | */ |
| 3516 | break; |
| 3517 | |
| 3518 | case BFA_TSKIM_SM_CLEANUP_DONE: |
| 3519 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); |
| 3520 | bfa_tskim_cleanup_ios(tskim); |
| 3521 | break; |
| 3522 | |
| 3523 | case BFA_TSKIM_SM_HWFAIL: |
| 3524 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3525 | bfa_tskim_iocdisable_ios(tskim); |
| 3526 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); |
| 3527 | break; |
| 3528 | |
| 3529 | default: |
| 3530 | bfa_sm_fault(tskim->bfa, event); |
| 3531 | } |
| 3532 | } |
| 3533 | |
| 3534 | static void |
| 3535 | bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3536 | { |
| 3537 | bfa_trc(tskim->bfa, event); |
| 3538 | |
| 3539 | switch (event) { |
| 3540 | case BFA_TSKIM_SM_IOS_DONE: |
| 3541 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3542 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_done); |
| 3543 | break; |
| 3544 | |
| 3545 | case BFA_TSKIM_SM_CLEANUP: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3546 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3547 | * Ignore, TM command completed on wire. |
| 3548 | * Notify TM conmpletion on IO cleanup completion. |
| 3549 | */ |
| 3550 | break; |
| 3551 | |
| 3552 | case BFA_TSKIM_SM_HWFAIL: |
| 3553 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3554 | bfa_tskim_iocdisable_ios(tskim); |
| 3555 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); |
| 3556 | break; |
| 3557 | |
| 3558 | default: |
| 3559 | bfa_sm_fault(tskim->bfa, event); |
| 3560 | } |
| 3561 | } |
| 3562 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3563 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3564 | * Task management command is waiting for room in request CQ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3565 | */ |
| 3566 | static void |
| 3567 | bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3568 | { |
| 3569 | bfa_trc(tskim->bfa, event); |
| 3570 | |
| 3571 | switch (event) { |
| 3572 | case BFA_TSKIM_SM_QRESUME: |
| 3573 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); |
| 3574 | bfa_tskim_send(tskim); |
| 3575 | break; |
| 3576 | |
| 3577 | case BFA_TSKIM_SM_CLEANUP: |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3578 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3579 | * No need to send TM on wire since ITN is offline. |
| 3580 | */ |
| 3581 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); |
| 3582 | bfa_reqq_wcancel(&tskim->reqq_wait); |
| 3583 | bfa_tskim_cleanup_ios(tskim); |
| 3584 | break; |
| 3585 | |
| 3586 | case BFA_TSKIM_SM_HWFAIL: |
| 3587 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3588 | bfa_reqq_wcancel(&tskim->reqq_wait); |
| 3589 | bfa_tskim_iocdisable_ios(tskim); |
| 3590 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); |
| 3591 | break; |
| 3592 | |
| 3593 | default: |
| 3594 | bfa_sm_fault(tskim->bfa, event); |
| 3595 | } |
| 3596 | } |
| 3597 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3598 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3599 | * Task management command is active, awaiting for room in request CQ |
| 3600 | * to send clean up request. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3601 | */ |
| 3602 | static void |
| 3603 | bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, |
| 3604 | enum bfa_tskim_event event) |
| 3605 | { |
| 3606 | bfa_trc(tskim->bfa, event); |
| 3607 | |
| 3608 | switch (event) { |
| 3609 | case BFA_TSKIM_SM_DONE: |
| 3610 | bfa_reqq_wcancel(&tskim->reqq_wait); |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3611 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3612 | * Fall through !!! |
| 3613 | */ |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3614 | case BFA_TSKIM_SM_QRESUME: |
| 3615 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); |
| 3616 | bfa_tskim_send_abort(tskim); |
| 3617 | break; |
| 3618 | |
| 3619 | case BFA_TSKIM_SM_HWFAIL: |
| 3620 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); |
| 3621 | bfa_reqq_wcancel(&tskim->reqq_wait); |
| 3622 | bfa_tskim_iocdisable_ios(tskim); |
| 3623 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); |
| 3624 | break; |
| 3625 | |
| 3626 | default: |
| 3627 | bfa_sm_fault(tskim->bfa, event); |
| 3628 | } |
| 3629 | } |
| 3630 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3631 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3632 | * BFA callback is pending |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3633 | */ |
| 3634 | static void |
| 3635 | bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) |
| 3636 | { |
| 3637 | bfa_trc(tskim->bfa, event); |
| 3638 | |
| 3639 | switch (event) { |
| 3640 | case BFA_TSKIM_SM_HCB: |
| 3641 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); |
| 3642 | bfa_tskim_free(tskim); |
| 3643 | break; |
| 3644 | |
| 3645 | case BFA_TSKIM_SM_CLEANUP: |
| 3646 | bfa_tskim_notify_comp(tskim); |
| 3647 | break; |
| 3648 | |
| 3649 | case BFA_TSKIM_SM_HWFAIL: |
| 3650 | break; |
| 3651 | |
| 3652 | default: |
| 3653 | bfa_sm_fault(tskim->bfa, event); |
| 3654 | } |
| 3655 | } |
| 3656 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3657 | static void |
| 3658 | __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete) |
| 3659 | { |
| 3660 | struct bfa_tskim_s *tskim = cbarg; |
| 3661 | |
| 3662 | if (!complete) { |
| 3663 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); |
| 3664 | return; |
| 3665 | } |
| 3666 | |
| 3667 | bfa_stats(tskim->itnim, tm_success); |
| 3668 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, tskim->tsk_status); |
| 3669 | } |
| 3670 | |
| 3671 | static void |
| 3672 | __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete) |
| 3673 | { |
| 3674 | struct bfa_tskim_s *tskim = cbarg; |
| 3675 | |
| 3676 | if (!complete) { |
| 3677 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); |
| 3678 | return; |
| 3679 | } |
| 3680 | |
| 3681 | bfa_stats(tskim->itnim, tm_failures); |
| 3682 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, |
| 3683 | BFI_TSKIM_STS_FAILED); |
| 3684 | } |
| 3685 | |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3686 | static bfa_boolean_t |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 3687 | bfa_tskim_match_scope(struct bfa_tskim_s *tskim, struct scsi_lun lun) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3688 | { |
| 3689 | switch (tskim->tm_cmnd) { |
| 3690 | case FCP_TM_TARGET_RESET: |
| 3691 | return BFA_TRUE; |
| 3692 | |
| 3693 | case FCP_TM_ABORT_TASK_SET: |
| 3694 | case FCP_TM_CLEAR_TASK_SET: |
| 3695 | case FCP_TM_LUN_RESET: |
| 3696 | case FCP_TM_CLEAR_ACA: |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3697 | return !memcmp(&tskim->lun, &lun, sizeof(lun)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3698 | |
| 3699 | default: |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3700 | WARN_ON(1); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3701 | } |
| 3702 | |
| 3703 | return BFA_FALSE; |
| 3704 | } |
| 3705 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3706 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3707 | * Gather affected IO requests and task management commands. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3708 | */ |
| 3709 | static void |
| 3710 | bfa_tskim_gather_ios(struct bfa_tskim_s *tskim) |
| 3711 | { |
| 3712 | struct bfa_itnim_s *itnim = tskim->itnim; |
| 3713 | struct bfa_ioim_s *ioim; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 3714 | struct list_head *qe, *qen; |
| 3715 | struct scsi_cmnd *cmnd; |
| 3716 | struct scsi_lun scsilun; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3717 | |
| 3718 | INIT_LIST_HEAD(&tskim->io_q); |
| 3719 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3720 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3721 | * Gather any active IO requests first. |
| 3722 | */ |
| 3723 | list_for_each_safe(qe, qen, &itnim->io_q) { |
| 3724 | ioim = (struct bfa_ioim_s *) qe; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 3725 | cmnd = (struct scsi_cmnd *) ioim->dio; |
| 3726 | int_to_scsilun(cmnd->device->lun, &scsilun); |
| 3727 | if (bfa_tskim_match_scope(tskim, scsilun)) { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3728 | list_del(&ioim->qe); |
| 3729 | list_add_tail(&ioim->qe, &tskim->io_q); |
| 3730 | } |
| 3731 | } |
| 3732 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3733 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3734 | * Failback any pending IO requests immediately. |
| 3735 | */ |
| 3736 | list_for_each_safe(qe, qen, &itnim->pending_q) { |
| 3737 | ioim = (struct bfa_ioim_s *) qe; |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 3738 | cmnd = (struct scsi_cmnd *) ioim->dio; |
| 3739 | int_to_scsilun(cmnd->device->lun, &scsilun); |
| 3740 | if (bfa_tskim_match_scope(tskim, scsilun)) { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3741 | list_del(&ioim->qe); |
| 3742 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); |
| 3743 | bfa_ioim_tov(ioim); |
| 3744 | } |
| 3745 | } |
| 3746 | } |
| 3747 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3748 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3749 | * IO cleanup completion |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3750 | */ |
| 3751 | static void |
| 3752 | bfa_tskim_cleanp_comp(void *tskim_cbarg) |
| 3753 | { |
| 3754 | struct bfa_tskim_s *tskim = tskim_cbarg; |
| 3755 | |
| 3756 | bfa_stats(tskim->itnim, tm_io_comps); |
| 3757 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_IOS_DONE); |
| 3758 | } |
| 3759 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3760 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3761 | * Gather affected IO requests and task management commands. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3762 | */ |
| 3763 | static void |
| 3764 | bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim) |
| 3765 | { |
| 3766 | struct bfa_ioim_s *ioim; |
| 3767 | struct list_head *qe, *qen; |
| 3768 | |
| 3769 | bfa_wc_init(&tskim->wc, bfa_tskim_cleanp_comp, tskim); |
| 3770 | |
| 3771 | list_for_each_safe(qe, qen, &tskim->io_q) { |
| 3772 | ioim = (struct bfa_ioim_s *) qe; |
| 3773 | bfa_wc_up(&tskim->wc); |
| 3774 | bfa_ioim_cleanup_tm(ioim, tskim); |
| 3775 | } |
| 3776 | |
| 3777 | bfa_wc_wait(&tskim->wc); |
| 3778 | } |
| 3779 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3780 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3781 | * Send task management request to firmware. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3782 | */ |
| 3783 | static bfa_boolean_t |
| 3784 | bfa_tskim_send(struct bfa_tskim_s *tskim) |
| 3785 | { |
| 3786 | struct bfa_itnim_s *itnim = tskim->itnim; |
| 3787 | struct bfi_tskim_req_s *m; |
| 3788 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3789 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3790 | * check for room in queue to send request now |
| 3791 | */ |
| 3792 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); |
| 3793 | if (!m) |
| 3794 | return BFA_FALSE; |
| 3795 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3796 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3797 | * build i/o request message next |
| 3798 | */ |
| 3799 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_TM_REQ, |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3800 | bfa_fn_lpu(tskim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3801 | |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3802 | m->tsk_tag = cpu_to_be16(tskim->tsk_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3803 | m->itn_fhdl = tskim->itnim->rport->fw_handle; |
| 3804 | m->t_secs = tskim->tsecs; |
| 3805 | m->lun = tskim->lun; |
| 3806 | m->tm_flags = tskim->tm_cmnd; |
| 3807 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3808 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3809 | * queue I/O message to firmware |
| 3810 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3811 | bfa_reqq_produce(tskim->bfa, itnim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3812 | return BFA_TRUE; |
| 3813 | } |
| 3814 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3815 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3816 | * Send abort request to cleanup an active TM to firmware. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3817 | */ |
| 3818 | static bfa_boolean_t |
| 3819 | bfa_tskim_send_abort(struct bfa_tskim_s *tskim) |
| 3820 | { |
| 3821 | struct bfa_itnim_s *itnim = tskim->itnim; |
| 3822 | struct bfi_tskim_abortreq_s *m; |
| 3823 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3824 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3825 | * check for room in queue to send request now |
| 3826 | */ |
| 3827 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); |
| 3828 | if (!m) |
| 3829 | return BFA_FALSE; |
| 3830 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3831 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3832 | * build i/o request message next |
| 3833 | */ |
| 3834 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_ABORT_REQ, |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3835 | bfa_fn_lpu(tskim->bfa)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3836 | |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3837 | m->tsk_tag = cpu_to_be16(tskim->tsk_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3838 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3839 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3840 | * queue I/O message to firmware |
| 3841 | */ |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3842 | bfa_reqq_produce(tskim->bfa, itnim->reqq, m->mh); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3843 | return BFA_TRUE; |
| 3844 | } |
| 3845 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3846 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3847 | * Call to resume task management cmnd waiting for room in request queue. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3848 | */ |
| 3849 | static void |
| 3850 | bfa_tskim_qresume(void *cbarg) |
| 3851 | { |
| 3852 | struct bfa_tskim_s *tskim = cbarg; |
| 3853 | |
| 3854 | bfa_stats(tskim->itnim, tm_qresumes); |
| 3855 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_QRESUME); |
| 3856 | } |
| 3857 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3858 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3859 | * Cleanup IOs associated with a task mangement command on IOC failures. |
| 3860 | */ |
| 3861 | static void |
| 3862 | bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim) |
| 3863 | { |
| 3864 | struct bfa_ioim_s *ioim; |
| 3865 | struct list_head *qe, *qen; |
| 3866 | |
| 3867 | list_for_each_safe(qe, qen, &tskim->io_q) { |
| 3868 | ioim = (struct bfa_ioim_s *) qe; |
| 3869 | bfa_ioim_iocdisable(ioim); |
| 3870 | } |
| 3871 | } |
| 3872 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3873 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3874 | * Notification on completions from related ioim. |
| 3875 | */ |
| 3876 | void |
| 3877 | bfa_tskim_iodone(struct bfa_tskim_s *tskim) |
| 3878 | { |
| 3879 | bfa_wc_down(&tskim->wc); |
| 3880 | } |
| 3881 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3882 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3883 | * Handle IOC h/w failure notification from itnim. |
| 3884 | */ |
| 3885 | void |
| 3886 | bfa_tskim_iocdisable(struct bfa_tskim_s *tskim) |
| 3887 | { |
| 3888 | tskim->notify = BFA_FALSE; |
| 3889 | bfa_stats(tskim->itnim, tm_iocdowns); |
| 3890 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HWFAIL); |
| 3891 | } |
| 3892 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3893 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3894 | * Cleanup TM command and associated IOs as part of ITNIM offline. |
| 3895 | */ |
| 3896 | void |
| 3897 | bfa_tskim_cleanup(struct bfa_tskim_s *tskim) |
| 3898 | { |
| 3899 | tskim->notify = BFA_TRUE; |
| 3900 | bfa_stats(tskim->itnim, tm_cleanups); |
| 3901 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP); |
| 3902 | } |
| 3903 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3904 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3905 | * Memory allocation and initialization. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3906 | */ |
| 3907 | void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3908 | bfa_tskim_attach(struct bfa_fcpim_s *fcpim) |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3909 | { |
| 3910 | struct bfa_tskim_s *tskim; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3911 | struct bfa_fcp_mod_s *fcp = fcpim->fcp; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3912 | u16 i; |
| 3913 | |
| 3914 | INIT_LIST_HEAD(&fcpim->tskim_free_q); |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 3915 | INIT_LIST_HEAD(&fcpim->tskim_unused_q); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3916 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3917 | tskim = (struct bfa_tskim_s *) bfa_mem_kva_curp(fcp); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3918 | fcpim->tskim_arr = tskim; |
| 3919 | |
| 3920 | for (i = 0; i < fcpim->num_tskim_reqs; i++, tskim++) { |
| 3921 | /* |
| 3922 | * initialize TSKIM |
| 3923 | */ |
Jing Huang | 6a18b16 | 2010-10-18 17:08:54 -0700 | [diff] [blame] | 3924 | memset(tskim, 0, sizeof(struct bfa_tskim_s)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3925 | tskim->tsk_tag = i; |
| 3926 | tskim->bfa = fcpim->bfa; |
| 3927 | tskim->fcpim = fcpim; |
| 3928 | tskim->notify = BFA_FALSE; |
| 3929 | bfa_reqq_winit(&tskim->reqq_wait, bfa_tskim_qresume, |
| 3930 | tskim); |
| 3931 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); |
| 3932 | |
| 3933 | list_add_tail(&tskim->qe, &fcpim->tskim_free_q); |
| 3934 | } |
| 3935 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 3936 | bfa_mem_kva_curp(fcp) = (u8 *) tskim; |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3937 | } |
| 3938 | |
| 3939 | void |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3940 | bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) |
| 3941 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3942 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3943 | struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m; |
| 3944 | struct bfa_tskim_s *tskim; |
Jing Huang | ba816ea | 2010-10-18 17:10:50 -0700 | [diff] [blame] | 3945 | u16 tsk_tag = be16_to_cpu(rsp->tsk_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3946 | |
| 3947 | tskim = BFA_TSKIM_FROM_TAG(fcpim, tsk_tag); |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3948 | WARN_ON(tskim->tsk_tag != tsk_tag); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3949 | |
| 3950 | tskim->tsk_status = rsp->tsk_status; |
| 3951 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3952 | /* |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3953 | * Firmware sends BFI_TSKIM_STS_ABORTED status for abort |
| 3954 | * requests. All other statuses are for normal completions. |
| 3955 | */ |
| 3956 | if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) { |
| 3957 | bfa_stats(tskim->itnim, tm_cleanup_comps); |
| 3958 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE); |
| 3959 | } else { |
| 3960 | bfa_stats(tskim->itnim, tm_fw_rsps); |
| 3961 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE); |
| 3962 | } |
| 3963 | } |
| 3964 | |
| 3965 | |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3966 | struct bfa_tskim_s * |
| 3967 | bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk) |
| 3968 | { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 3969 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3970 | struct bfa_tskim_s *tskim; |
| 3971 | |
| 3972 | bfa_q_deq(&fcpim->tskim_free_q, &tskim); |
| 3973 | |
| 3974 | if (tskim) |
| 3975 | tskim->dtsk = dtsk; |
| 3976 | |
| 3977 | return tskim; |
| 3978 | } |
| 3979 | |
| 3980 | void |
| 3981 | bfa_tskim_free(struct bfa_tskim_s *tskim) |
| 3982 | { |
Jing Huang | d4b671c | 2010-12-26 21:46:35 -0800 | [diff] [blame] | 3983 | WARN_ON(!bfa_q_is_on_q_func(&tskim->itnim->tsk_q, &tskim->qe)); |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3984 | list_del(&tskim->qe); |
| 3985 | list_add_tail(&tskim->qe, &tskim->fcpim->tskim_free_q); |
| 3986 | } |
| 3987 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 3988 | /* |
Maggie Zhang | da99dcc | 2010-12-09 19:13:20 -0800 | [diff] [blame] | 3989 | * Start a task management command. |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 3990 | * |
| 3991 | * @param[in] tskim BFA task management command instance |
| 3992 | * @param[in] itnim i-t nexus for the task management command |
| 3993 | * @param[in] lun lun, if applicable |
| 3994 | * @param[in] tm_cmnd Task management command code. |
| 3995 | * @param[in] t_secs Timeout in seconds |
| 3996 | * |
| 3997 | * @return None. |
| 3998 | */ |
| 3999 | void |
Maggie Zhang | f314878 | 2010-12-09 19:11:39 -0800 | [diff] [blame] | 4000 | bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, |
| 4001 | struct scsi_lun lun, |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 4002 | enum fcp_tm_cmnd tm_cmnd, u8 tsecs) |
| 4003 | { |
| 4004 | tskim->itnim = itnim; |
| 4005 | tskim->lun = lun; |
| 4006 | tskim->tm_cmnd = tm_cmnd; |
| 4007 | tskim->tsecs = tsecs; |
| 4008 | tskim->notify = BFA_FALSE; |
| 4009 | bfa_stats(itnim, tm_cmnds); |
| 4010 | |
| 4011 | list_add_tail(&tskim->qe, &itnim->tsk_q); |
| 4012 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_START); |
| 4013 | } |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4014 | |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 4015 | void |
| 4016 | bfa_tskim_res_recfg(struct bfa_s *bfa, u16 num_tskim_fw) |
| 4017 | { |
| 4018 | struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa); |
| 4019 | struct list_head *qe; |
| 4020 | int i; |
| 4021 | |
| 4022 | for (i = 0; i < (fcpim->num_tskim_reqs - num_tskim_fw); i++) { |
| 4023 | bfa_q_deq_tail(&fcpim->tskim_free_q, &qe); |
| 4024 | list_add_tail(qe, &fcpim->tskim_unused_q); |
| 4025 | } |
| 4026 | } |
| 4027 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4028 | /* BFA FCP module - parent module for fcpim */ |
| 4029 | |
| 4030 | BFA_MODULE(fcp); |
| 4031 | |
| 4032 | static void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4033 | bfa_fcp_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *minfo, |
| 4034 | struct bfa_s *bfa) |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4035 | { |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4036 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
| 4037 | struct bfa_mem_kva_s *fcp_kva = BFA_MEM_FCP_KVA(bfa); |
| 4038 | struct bfa_mem_dma_s *seg_ptr; |
| 4039 | u16 nsegs, idx, per_seg_ios, num_io_req; |
| 4040 | u32 km_len = 0; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4041 | |
| 4042 | /* |
| 4043 | * ZERO for num_ioim_reqs and num_fwtio_reqs is allowed config value. |
| 4044 | * So if the values are non zero, adjust them appropriately. |
| 4045 | */ |
| 4046 | if (cfg->fwcfg.num_ioim_reqs && |
| 4047 | cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN) |
| 4048 | cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN; |
| 4049 | else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX) |
| 4050 | cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX; |
| 4051 | |
| 4052 | if (cfg->fwcfg.num_fwtio_reqs > BFA_FWTIO_MAX) |
| 4053 | cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX; |
| 4054 | |
| 4055 | num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); |
| 4056 | if (num_io_req > BFA_IO_MAX) { |
| 4057 | if (cfg->fwcfg.num_ioim_reqs && cfg->fwcfg.num_fwtio_reqs) { |
| 4058 | cfg->fwcfg.num_ioim_reqs = BFA_IO_MAX/2; |
| 4059 | cfg->fwcfg.num_fwtio_reqs = BFA_IO_MAX/2; |
| 4060 | } else if (cfg->fwcfg.num_fwtio_reqs) |
| 4061 | cfg->fwcfg.num_fwtio_reqs = BFA_FWTIO_MAX; |
| 4062 | else |
| 4063 | cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX; |
| 4064 | } |
| 4065 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4066 | bfa_fcpim_meminfo(cfg, &km_len); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4067 | |
| 4068 | num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4069 | km_len += num_io_req * sizeof(struct bfa_iotag_s); |
| 4070 | km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itn_s); |
| 4071 | |
| 4072 | /* dma memory */ |
| 4073 | nsegs = BFI_MEM_DMA_NSEGS(num_io_req, BFI_IOIM_SNSLEN); |
| 4074 | per_seg_ios = BFI_MEM_NREQS_SEG(BFI_IOIM_SNSLEN); |
| 4075 | |
| 4076 | bfa_mem_dma_seg_iter(fcp, seg_ptr, nsegs, idx) { |
| 4077 | if (num_io_req >= per_seg_ios) { |
| 4078 | num_io_req -= per_seg_ios; |
| 4079 | bfa_mem_dma_setup(minfo, seg_ptr, |
| 4080 | per_seg_ios * BFI_IOIM_SNSLEN); |
| 4081 | } else |
| 4082 | bfa_mem_dma_setup(minfo, seg_ptr, |
| 4083 | num_io_req * BFI_IOIM_SNSLEN); |
| 4084 | } |
| 4085 | |
| 4086 | /* kva memory */ |
| 4087 | bfa_mem_kva_setup(minfo, fcp_kva, km_len); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4088 | } |
| 4089 | |
| 4090 | static void |
| 4091 | bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4092 | struct bfa_pcidev_s *pcidev) |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4093 | { |
| 4094 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4095 | struct bfa_mem_dma_s *seg_ptr; |
| 4096 | u16 idx, nsegs, num_io_req; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4097 | |
| 4098 | fcp->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs; |
| 4099 | fcp->num_fwtio_reqs = cfg->fwcfg.num_fwtio_reqs; |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4100 | fcp->num_itns = cfg->fwcfg.num_rports; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4101 | fcp->bfa = bfa; |
| 4102 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4103 | /* |
| 4104 | * Setup the pool of snsbase addr's, that is passed to fw as |
| 4105 | * part of bfi_iocfc_cfg_s. |
| 4106 | */ |
| 4107 | num_io_req = (cfg->fwcfg.num_ioim_reqs + cfg->fwcfg.num_fwtio_reqs); |
| 4108 | nsegs = BFI_MEM_DMA_NSEGS(num_io_req, BFI_IOIM_SNSLEN); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4109 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4110 | bfa_mem_dma_seg_iter(fcp, seg_ptr, nsegs, idx) { |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4111 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4112 | if (!bfa_mem_dma_virt(seg_ptr)) |
| 4113 | break; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4114 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4115 | fcp->snsbase[idx].pa = bfa_mem_dma_phys(seg_ptr); |
| 4116 | fcp->snsbase[idx].kva = bfa_mem_dma_virt(seg_ptr); |
| 4117 | bfa_iocfc_set_snsbase(bfa, idx, fcp->snsbase[idx].pa); |
| 4118 | } |
| 4119 | |
| 4120 | bfa_fcpim_attach(fcp, bfad, cfg, pcidev); |
| 4121 | |
| 4122 | bfa_iotag_attach(fcp); |
| 4123 | |
| 4124 | fcp->itn_arr = (struct bfa_itn_s *) bfa_mem_kva_curp(fcp); |
| 4125 | bfa_mem_kva_curp(fcp) = (u8 *)fcp->itn_arr + |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4126 | (fcp->num_itns * sizeof(struct bfa_itn_s)); |
| 4127 | memset(fcp->itn_arr, 0, |
| 4128 | (fcp->num_itns * sizeof(struct bfa_itn_s))); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4129 | } |
| 4130 | |
| 4131 | static void |
| 4132 | bfa_fcp_detach(struct bfa_s *bfa) |
| 4133 | { |
| 4134 | } |
| 4135 | |
| 4136 | static void |
| 4137 | bfa_fcp_start(struct bfa_s *bfa) |
| 4138 | { |
Krishna Gudipati | 83763d5 | 2011-07-20 17:04:03 -0700 | [diff] [blame] | 4139 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
| 4140 | |
| 4141 | /* |
| 4142 | * bfa_init() with flash read is complete. now invalidate the stale |
| 4143 | * content of lun mask like unit attention, rp tag and lp tag. |
| 4144 | */ |
| 4145 | bfa_ioim_lm_init(fcp->bfa); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4146 | } |
| 4147 | |
| 4148 | static void |
| 4149 | bfa_fcp_stop(struct bfa_s *bfa) |
| 4150 | { |
| 4151 | } |
| 4152 | |
| 4153 | static void |
| 4154 | bfa_fcp_iocdisable(struct bfa_s *bfa) |
| 4155 | { |
| 4156 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
| 4157 | |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 4158 | /* Enqueue unused ioim resources to free_q */ |
| 4159 | list_splice_tail_init(&fcp->iotag_unused_q, &fcp->iotag_ioim_free_q); |
| 4160 | |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4161 | bfa_fcpim_iocdisable(fcp); |
| 4162 | } |
| 4163 | |
| 4164 | void |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 4165 | bfa_fcp_res_recfg(struct bfa_s *bfa, u16 num_ioim_fw) |
| 4166 | { |
| 4167 | struct bfa_fcp_mod_s *mod = BFA_FCP_MOD(bfa); |
| 4168 | struct list_head *qe; |
| 4169 | int i; |
| 4170 | |
| 4171 | for (i = 0; i < (mod->num_ioim_reqs - num_ioim_fw); i++) { |
| 4172 | bfa_q_deq_tail(&mod->iotag_ioim_free_q, &qe); |
| 4173 | list_add_tail(qe, &mod->iotag_unused_q); |
| 4174 | } |
| 4175 | } |
| 4176 | |
| 4177 | void |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4178 | bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport, |
| 4179 | void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m)) |
| 4180 | { |
| 4181 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
| 4182 | struct bfa_itn_s *itn; |
| 4183 | |
| 4184 | itn = BFA_ITN_FROM_TAG(fcp, rport->rport_tag); |
| 4185 | itn->isr = isr; |
| 4186 | } |
| 4187 | |
| 4188 | /* |
| 4189 | * Itn interrupt processing. |
| 4190 | */ |
| 4191 | void |
| 4192 | bfa_itn_isr(struct bfa_s *bfa, struct bfi_msg_s *m) |
| 4193 | { |
| 4194 | struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa); |
| 4195 | union bfi_itn_i2h_msg_u msg; |
| 4196 | struct bfa_itn_s *itn; |
| 4197 | |
| 4198 | msg.msg = m; |
| 4199 | itn = BFA_ITN_FROM_TAG(fcp, msg.create_rsp->bfa_handle); |
| 4200 | |
| 4201 | if (itn->isr) |
| 4202 | itn->isr(bfa, m); |
| 4203 | else |
| 4204 | WARN_ON(1); |
| 4205 | } |
| 4206 | |
| 4207 | void |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4208 | bfa_iotag_attach(struct bfa_fcp_mod_s *fcp) |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4209 | { |
| 4210 | struct bfa_iotag_s *iotag; |
| 4211 | u16 num_io_req, i; |
| 4212 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4213 | iotag = (struct bfa_iotag_s *) bfa_mem_kva_curp(fcp); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4214 | fcp->iotag_arr = iotag; |
| 4215 | |
| 4216 | INIT_LIST_HEAD(&fcp->iotag_ioim_free_q); |
| 4217 | INIT_LIST_HEAD(&fcp->iotag_tio_free_q); |
Krishna Gudipati | 3fd4598 | 2011-06-24 20:24:08 -0700 | [diff] [blame] | 4218 | INIT_LIST_HEAD(&fcp->iotag_unused_q); |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4219 | |
| 4220 | num_io_req = fcp->num_ioim_reqs + fcp->num_fwtio_reqs; |
| 4221 | for (i = 0; i < num_io_req; i++, iotag++) { |
| 4222 | memset(iotag, 0, sizeof(struct bfa_iotag_s)); |
| 4223 | iotag->tag = i; |
| 4224 | if (i < fcp->num_ioim_reqs) |
| 4225 | list_add_tail(&iotag->qe, &fcp->iotag_ioim_free_q); |
| 4226 | else |
| 4227 | list_add_tail(&iotag->qe, &fcp->iotag_tio_free_q); |
| 4228 | } |
| 4229 | |
Krishna Gudipati | 4507025 | 2011-06-24 20:24:29 -0700 | [diff] [blame] | 4230 | bfa_mem_kva_curp(fcp) = (u8 *) iotag; |
Krishna Gudipati | e2187d7 | 2011-06-13 15:53:58 -0700 | [diff] [blame] | 4231 | } |