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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d080abe0 JS |
4 | * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * |
5 | * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * | |
51f4ca3c | 6 | * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
c44ce173 | 7 | * EMULEX and SLI are trademarks of Emulex. * |
d080abe0 | 8 | * www.broadcom.com * |
dea3101e JB |
9 | * * |
10 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
11 | * modify it under the terms of version 2 of the GNU General * |
12 | * Public License as published by the Free Software Foundation. * | |
13 | * This program is distributed in the hope that it will be useful. * | |
14 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
15 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
16 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
17 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
18 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
19 | * more details, a copy of which can be found in the file COPYING * | |
20 | * included with this package. * | |
dea3101e JB |
21 | *******************************************************************/ |
22 | ||
dea3101e JB |
23 | /* forward declaration for LPFC_IOCB_t's use */ |
24 | struct lpfc_hba; | |
2e0fef85 | 25 | struct lpfc_vport; |
dea3101e JB |
26 | |
27 | /* Define the context types that SLI handles for abort and sums. */ | |
28 | typedef enum _lpfc_ctx_cmd { | |
29 | LPFC_CTX_LUN, | |
30 | LPFC_CTX_TGT, | |
dea3101e JB |
31 | LPFC_CTX_HOST |
32 | } lpfc_ctx_cmd; | |
33 | ||
4d9ab994 JS |
34 | struct lpfc_cq_event { |
35 | struct list_head list; | |
36 | union { | |
37 | struct lpfc_mcqe mcqe_cmpl; | |
38 | struct lpfc_acqe_link acqe_link; | |
70f3c073 | 39 | struct lpfc_acqe_fip acqe_fip; |
4d9ab994 | 40 | struct lpfc_acqe_dcbx acqe_dcbx; |
b19a061a | 41 | struct lpfc_acqe_grp5 acqe_grp5; |
70f3c073 JS |
42 | struct lpfc_acqe_fc_la acqe_fc; |
43 | struct lpfc_acqe_sli acqe_sli; | |
4d9ab994 JS |
44 | struct lpfc_rcqe rcqe_cmpl; |
45 | struct sli4_wcqe_xri_aborted wcqe_axri; | |
46 | struct lpfc_wcqe_complete wcqe_cmpl; | |
47 | } cqe; | |
da0436e9 JS |
48 | }; |
49 | ||
dea3101e JB |
50 | /* This structure is used to handle IOCB requests / responses */ |
51 | struct lpfc_iocbq { | |
52 | /* lpfc_iocbqs are used in double linked lists */ | |
53 | struct list_head list; | |
9c2face6 | 54 | struct list_head clist; |
2a9bf3d0 | 55 | struct list_head dlist; |
604a3e30 | 56 | uint16_t iotag; /* pre-assigned IO tag */ |
6d368e53 | 57 | uint16_t sli4_lxritag; /* logical pre-assigned XRI. */ |
da0436e9 | 58 | uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */ |
895427bd | 59 | uint16_t hba_wqidx; /* index to HBA work queue */ |
45ed1190 | 60 | struct lpfc_cq_event cq_event; |
895427bd JS |
61 | struct lpfc_wcqe_complete wcqe_cmpl; /* WQE cmpl */ |
62 | uint64_t isr_timestamp; | |
604a3e30 | 63 | |
895427bd JS |
64 | /* Be careful here */ |
65 | union lpfc_wqe wqe; /* WQE cmd */ | |
66 | IOCB_t iocb; /* For IOCB cmd or if we want 128 byte WQE */ | |
67 | ||
68 | uint8_t rsvd2; | |
c92c841c | 69 | uint8_t priority; /* OAS priority */ |
dea3101e | 70 | uint8_t retry; /* retry counter for IOCB cmd - if needed */ |
1b8d11ab | 71 | uint32_t iocb_flag; |
07951076 | 72 | #define LPFC_IO_LIBDFC 1 /* libdfc iocb */ |
5a0916b4 JS |
73 | #define LPFC_IO_WAKE 2 /* Synchronous I/O completed */ |
74 | #define LPFC_IO_WAKE_TMO LPFC_IO_WAKE /* Synchronous I/O timed out */ | |
07951076 JS |
75 | #define LPFC_IO_FCP 4 /* FCP command -- iocbq in scsi_buf */ |
76 | #define LPFC_DRIVER_ABORTED 8 /* driver aborted this request */ | |
92d7f7b0 | 77 | #define LPFC_IO_FABRIC 0x10 /* Iocb send using fabric scheduler */ |
0ff10d46 | 78 | #define LPFC_DELAY_MEM_FREE 0x20 /* Defer free'ing of FC data */ |
341af102 JS |
79 | #define LPFC_EXCHANGE_BUSY 0x40 /* SLI4 hba reported XB in response */ |
80 | #define LPFC_USE_FCPWQIDX 0x80 /* Submit to specified FCPWQ index */ | |
0f65ff68 | 81 | #define DSS_SECURITY_OP 0x100 /* security IO */ |
4f2e66c6 | 82 | #define LPFC_IO_ON_TXCMPLQ 0x200 /* The IO is still on the TXCMPLQ */ |
8012cc38 JS |
83 | #define LPFC_IO_DIF_PASS 0x400 /* T10 DIF IO pass-thru prot */ |
84 | #define LPFC_IO_DIF_STRIP 0x800 /* T10 DIF IO strip prot */ | |
85 | #define LPFC_IO_DIF_INSERT 0x1000 /* T10 DIF IO insert prot */ | |
1b8d11ab | 86 | #define LPFC_IO_CMD_OUTSTANDING 0x2000 /* timeout handler abort window */ |
341af102 JS |
87 | |
88 | #define LPFC_FIP_ELS_ID_MASK 0xc000 /* ELS_ID range 0-3, non-shifted mask */ | |
89 | #define LPFC_FIP_ELS_ID_SHIFT 14 | |
dea3101e | 90 | |
1ba981fd | 91 | #define LPFC_IO_OAS 0x10000 /* OAS FCP IO */ |
9bd2bff5 | 92 | #define LPFC_IO_FOF 0x20000 /* FOF FCP IO */ |
6c7cf486 | 93 | #define LPFC_IO_LOOPBACK 0x40000 /* Loopback IO */ |
895427bd JS |
94 | #define LPFC_PRLI_NVME_REQ 0x80000 /* This is an NVME PRLI. */ |
95 | #define LPFC_PRLI_FCP_REQ 0x100000 /* This is an NVME PRLI. */ | |
96 | #define LPFC_IO_NVME 0x200000 /* NVME FCP command */ | |
97 | #define LPFC_IO_NVME_LS 0x400000 /* NVME LS command */ | |
f358dd0c | 98 | #define LPFC_IO_NVMET 0x800000 /* NVMET command */ |
1ba981fd | 99 | |
dea3101e | 100 | uint32_t drvrTimeout; /* driver timeout in seconds */ |
2e0fef85 | 101 | struct lpfc_vport *vport;/* virtual port pointer */ |
dea3101e JB |
102 | void *context1; /* caller context information */ |
103 | void *context2; /* caller context information */ | |
104 | void *context3; /* caller context information */ | |
105 | union { | |
51ef4c26 JS |
106 | wait_queue_head_t *wait_queue; |
107 | struct lpfc_iocbq *rsp_iocb; | |
108 | struct lpfcMboxq *mbox; | |
109 | struct lpfc_nodelist *ndlp; | |
19ca7609 | 110 | struct lpfc_node_rrq *rrq; |
dea3101e JB |
111 | } context_un; |
112 | ||
2ea259ee | 113 | void (*fabric_iocb_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, |
92d7f7b0 | 114 | struct lpfc_iocbq *); |
2ea259ee | 115 | void (*wait_iocb_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, |
5a0916b4 | 116 | struct lpfc_iocbq *); |
2ea259ee | 117 | void (*iocb_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, |
dea3101e | 118 | struct lpfc_iocbq *); |
895427bd JS |
119 | void (*wqe_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *, |
120 | struct lpfc_wcqe_complete *); | |
dea3101e JB |
121 | }; |
122 | ||
123 | #define SLI_IOCB_RET_IOCB 1 /* Return IOCB if cmd ring full */ | |
dea3101e JB |
124 | |
125 | #define IOCB_SUCCESS 0 | |
126 | #define IOCB_BUSY 1 | |
127 | #define IOCB_ERROR 2 | |
128 | #define IOCB_TIMEDOUT 3 | |
129 | ||
895427bd JS |
130 | #define SLI_WQE_RET_WQE 1 /* Return WQE if cmd ring full */ |
131 | ||
132 | #define WQE_SUCCESS 0 | |
133 | #define WQE_BUSY 1 | |
134 | #define WQE_ERROR 2 | |
135 | #define WQE_TIMEDOUT 3 | |
136 | #define WQE_ABORTED 4 | |
137 | ||
858c9f6c JS |
138 | #define LPFC_MBX_WAKE 1 |
139 | #define LPFC_MBX_IMED_UNREG 2 | |
7054a606 | 140 | |
dea3101e JB |
141 | typedef struct lpfcMboxq { |
142 | /* MBOXQs are used in single linked lists */ | |
143 | struct list_head list; /* ptr to next mailbox command */ | |
da0436e9 JS |
144 | union { |
145 | MAILBOX_t mb; /* Mailbox cmd */ | |
146 | struct lpfc_mqe mqe; | |
147 | } u; | |
148 | struct lpfc_vport *vport;/* virtual port pointer */ | |
dea3101e JB |
149 | void *context1; /* caller context information */ |
150 | void *context2; /* caller context information */ | |
151 | ||
152 | void (*mbox_cmpl) (struct lpfc_hba *, struct lpfcMboxq *); | |
7054a606 | 153 | uint8_t mbox_flag; |
7a470277 JS |
154 | uint16_t in_ext_byte_len; |
155 | uint16_t out_ext_byte_len; | |
156 | uint8_t mbox_offset_word; | |
da0436e9 JS |
157 | struct lpfc_mcqe mcqe; |
158 | struct lpfc_mbx_nembed_sge_virt *sge_array; | |
dea3101e JB |
159 | } LPFC_MBOXQ_t; |
160 | ||
161 | #define MBX_POLL 1 /* poll mailbox till command done, then | |
162 | return */ | |
163 | #define MBX_NOWAIT 2 /* issue command then return immediately */ | |
dea3101e | 164 | |
6669f9bb | 165 | #define LPFC_MAX_RING_MASK 5 /* max num of rctl/type masks allowed per |
dea3101e | 166 | ring */ |
2a76a283 JS |
167 | #define LPFC_SLI3_MAX_RING 4 /* Max num of SLI3 rings used by driver. |
168 | For SLI4, an additional ring for each | |
169 | FCP WQ will be allocated. */ | |
dea3101e JB |
170 | |
171 | struct lpfc_sli_ring; | |
172 | ||
173 | struct lpfc_sli_ring_mask { | |
174 | uint8_t profile; /* profile associated with ring */ | |
175 | uint8_t rctl; /* rctl / type pair configured for ring */ | |
176 | uint8_t type; /* rctl / type pair configured for ring */ | |
177 | uint8_t rsvd; | |
178 | /* rcv'd unsol event */ | |
179 | void (*lpfc_sli_rcv_unsol_event) (struct lpfc_hba *, | |
180 | struct lpfc_sli_ring *, | |
181 | struct lpfc_iocbq *); | |
182 | }; | |
183 | ||
184 | ||
185 | /* Structure used to hold SLI statistical counters and info */ | |
186 | struct lpfc_sli_ring_stat { | |
187 | uint64_t iocb_event; /* IOCB event counters */ | |
188 | uint64_t iocb_cmd; /* IOCB cmd issued */ | |
189 | uint64_t iocb_rsp; /* IOCB rsp received */ | |
190 | uint64_t iocb_cmd_delay; /* IOCB cmd ring delay */ | |
191 | uint64_t iocb_cmd_full; /* IOCB cmd ring full */ | |
192 | uint64_t iocb_cmd_empty; /* IOCB cmd ring is now empty */ | |
193 | uint64_t iocb_rsp_full; /* IOCB rsp ring full */ | |
194 | }; | |
195 | ||
7e56aa25 JS |
196 | struct lpfc_sli3_ring { |
197 | uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */ | |
198 | uint32_t next_cmdidx; /* next_cmd index */ | |
199 | uint32_t rspidx; /* current index in response ring */ | |
200 | uint32_t cmdidx; /* current index in command ring */ | |
201 | uint16_t numCiocb; /* number of command iocb's per ring */ | |
202 | uint16_t numRiocb; /* number of rsp iocb's per ring */ | |
203 | uint16_t sizeCiocb; /* Size of command iocb's in this ring */ | |
204 | uint16_t sizeRiocb; /* Size of response iocb's in this ring */ | |
205 | uint32_t *cmdringaddr; /* virtual address for cmd rings */ | |
206 | uint32_t *rspringaddr; /* virtual address for rsp rings */ | |
207 | }; | |
208 | ||
209 | struct lpfc_sli4_ring { | |
2a76a283 | 210 | struct lpfc_queue *wqp; /* Pointer to associated WQ */ |
7e56aa25 JS |
211 | }; |
212 | ||
213 | ||
dea3101e JB |
214 | /* Structure used to hold SLI ring information */ |
215 | struct lpfc_sli_ring { | |
216 | uint16_t flag; /* ring flags */ | |
217 | #define LPFC_DEFERRED_RING_EVENT 0x001 /* Deferred processing a ring event */ | |
218 | #define LPFC_CALL_RING_AVAILABLE 0x002 /* indicates cmd was full */ | |
dea3101e | 219 | #define LPFC_STOP_IOCB_EVENT 0x020 /* Stop processing IOCB cmds event */ |
dea3101e JB |
220 | uint16_t abtsiotag; /* tracks next iotag to use for ABTS */ |
221 | ||
dea3101e JB |
222 | uint8_t rsvd; |
223 | uint8_t ringno; /* ring number */ | |
7e56aa25 JS |
224 | |
225 | spinlock_t ring_lock; /* lock for issuing commands */ | |
dea3101e JB |
226 | |
227 | uint32_t fast_iotag; /* max fastlookup based iotag */ | |
228 | uint32_t iotag_ctr; /* keeps track of the next iotag to use */ | |
229 | uint32_t iotag_max; /* max iotag value to use */ | |
dea3101e JB |
230 | struct list_head txq; |
231 | uint16_t txq_cnt; /* current length of queue */ | |
232 | uint16_t txq_max; /* max length */ | |
233 | struct list_head txcmplq; | |
234 | uint16_t txcmplq_cnt; /* current length of queue */ | |
235 | uint16_t txcmplq_max; /* max length */ | |
dea3101e JB |
236 | uint32_t missbufcnt; /* keep track of buffers to post */ |
237 | struct list_head postbufq; | |
238 | uint16_t postbufq_cnt; /* current length of queue */ | |
239 | uint16_t postbufq_max; /* max length */ | |
240 | struct list_head iocb_continueq; | |
241 | uint16_t iocb_continueq_cnt; /* current length of queue */ | |
242 | uint16_t iocb_continueq_max; /* max length */ | |
9c2face6 | 243 | struct list_head iocb_continue_saveq; |
dea3101e JB |
244 | |
245 | struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK]; | |
246 | uint32_t num_mask; /* number of mask entries in prt array */ | |
57127f15 JS |
247 | void (*lpfc_sli_rcv_async_status) (struct lpfc_hba *, |
248 | struct lpfc_sli_ring *, struct lpfc_iocbq *); | |
dea3101e JB |
249 | |
250 | struct lpfc_sli_ring_stat stats; /* SLI statistical info */ | |
251 | ||
252 | /* cmd ring available */ | |
253 | void (*lpfc_sli_cmd_available) (struct lpfc_hba *, | |
254 | struct lpfc_sli_ring *); | |
7e56aa25 JS |
255 | union { |
256 | struct lpfc_sli3_ring sli3; | |
257 | struct lpfc_sli4_ring sli4; | |
258 | } sli; | |
dea3101e JB |
259 | }; |
260 | ||
ed957684 JS |
261 | /* Structure used for configuring rings to a specific profile or rctl / type */ |
262 | struct lpfc_hbq_init { | |
263 | uint32_t rn; /* Receive buffer notification */ | |
92d7f7b0 | 264 | uint32_t entry_count; /* max # of entries in HBQ */ |
ed957684 JS |
265 | uint32_t headerLen; /* 0 if not profile 4 or 5 */ |
266 | uint32_t logEntry; /* Set to 1 if this HBQ used for LogEntry */ | |
267 | uint32_t profile; /* Selection profile 0=all, 7=logentry */ | |
268 | uint32_t ring_mask; /* Binds HBQ to a ring e.g. Ring0=b0001, | |
269 | * ring2=b0100 */ | |
270 | uint32_t hbq_index; /* index of this hbq in ring .HBQs[] */ | |
271 | ||
272 | uint32_t seqlenoff; | |
273 | uint32_t maxlen; | |
274 | uint32_t seqlenbcnt; | |
275 | uint32_t cmdcodeoff; | |
276 | uint32_t cmdmatch[8]; | |
277 | uint32_t mask_count; /* number of mask entries in prt array */ | |
278 | struct hbq_mask hbqMasks[6]; | |
92d7f7b0 JS |
279 | |
280 | /* Non-config rings fields to keep track of buffer allocations */ | |
281 | uint32_t buffer_count; /* number of buffers allocated */ | |
282 | uint32_t init_count; /* number to allocate when initialized */ | |
283 | uint32_t add_count; /* number to allocate when starved */ | |
ed957684 JS |
284 | } ; |
285 | ||
dea3101e JB |
286 | /* Structure used to hold SLI statistical counters and info */ |
287 | struct lpfc_sli_stat { | |
288 | uint64_t mbox_stat_err; /* Mbox cmds completed status error */ | |
289 | uint64_t mbox_cmd; /* Mailbox commands issued */ | |
290 | uint64_t sli_intr; /* Count of Host Attention interrupts */ | |
aa6fbb75 JS |
291 | uint64_t sli_prev_intr; /* Previous cnt of Host Attention interrupts */ |
292 | uint64_t sli_ips; /* Host Attention interrupts per sec */ | |
dea3101e JB |
293 | uint32_t err_attn_event; /* Error Attn event counters */ |
294 | uint32_t link_event; /* Link event counters */ | |
295 | uint32_t mbox_event; /* Mailbox event counters */ | |
296 | uint32_t mbox_busy; /* Mailbox cmd busy */ | |
297 | }; | |
298 | ||
64ba8818 JS |
299 | /* Structure to store link status values when port stats are reset */ |
300 | struct lpfc_lnk_stat { | |
301 | uint32_t link_failure_count; | |
302 | uint32_t loss_of_sync_count; | |
303 | uint32_t loss_of_signal_count; | |
304 | uint32_t prim_seq_protocol_err_count; | |
305 | uint32_t invalid_tx_word_count; | |
306 | uint32_t invalid_crc_count; | |
307 | uint32_t error_frames; | |
308 | uint32_t link_events; | |
309 | }; | |
310 | ||
dea3101e JB |
311 | /* Structure used to hold SLI information */ |
312 | struct lpfc_sli { | |
313 | uint32_t num_rings; | |
314 | uint32_t sli_flag; | |
315 | ||
316 | /* Additional sli_flags */ | |
317 | #define LPFC_SLI_MBOX_ACTIVE 0x100 /* HBA mailbox is currently active */ | |
f4b4c68f | 318 | #define LPFC_SLI_ACTIVE 0x200 /* SLI in firmware is active */ |
dea3101e | 319 | #define LPFC_PROCESS_LA 0x400 /* Able to process link attention */ |
2e0fef85 | 320 | #define LPFC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */ |
84774a4d | 321 | #define LPFC_MENLO_MAINT 0x1000 /* need for menl fw download */ |
da0436e9 | 322 | #define LPFC_SLI_ASYNC_MBX_BLK 0x2000 /* Async mailbox is blocked */ |
f358dd0c | 323 | #define LPFC_SLI_SUPPRESS_RSP 0x4000 /* Suppress RSP feature is supported */ |
dea3101e | 324 | |
895427bd | 325 | struct lpfc_sli_ring *sli3_ring; |
dea3101e JB |
326 | |
327 | struct lpfc_sli_stat slistat; /* SLI statistical info */ | |
328 | struct list_head mboxq; | |
329 | uint16_t mboxq_cnt; /* current length of queue */ | |
330 | uint16_t mboxq_max; /* max length */ | |
331 | LPFC_MBOXQ_t *mbox_active; /* active mboxq information */ | |
92d7f7b0 | 332 | struct list_head mboxq_cmpl; |
dea3101e JB |
333 | |
334 | struct timer_list mbox_tmo; /* Hold clk to timeout active mbox | |
335 | cmd */ | |
336 | ||
604a3e30 JB |
337 | #define LPFC_IOCBQ_LOOKUP_INCREMENT 1024 |
338 | struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */ | |
339 | size_t iocbq_lookup_len; /* current lengs of the array */ | |
340 | uint16_t last_iotag; /* last allocated IOTAG */ | |
64ba8818 JS |
341 | unsigned long stats_start; /* in seconds */ |
342 | struct lpfc_lnk_stat lnk_stat_offsets; | |
dea3101e JB |
343 | }; |
344 | ||
a183a15f JS |
345 | /* Timeout for normal outstanding mbox command (Seconds) */ |
346 | #define LPFC_MBOX_TMO 30 | |
347 | /* Timeout for non-flash-based outstanding sli_config mbox command (Seconds) */ | |
348 | #define LPFC_MBOX_SLI4_CONFIG_TMO 60 | |
349 | /* Timeout for flash-based outstanding sli_config mbox command (Seconds) */ | |
350 | #define LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO 300 | |
351 | /* Timeout for other flash-based outstanding mbox command (Seconds) */ | |
352 | #define LPFC_MBOX_TMO_FLASH_CMD 300 |