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1 | /* |
2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. | |
3 | * All rights reserved | |
4 | * www.brocade.com | |
5 | * | |
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
10 | * published by the Free Software Foundation | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
18 | #include <defs/bfa_defs_port.h> | |
19 | #include <cs/bfa_trc.h> | |
20 | #include <cs/bfa_log.h> | |
21 | #include <cs/bfa_debug.h> | |
22 | #include <port/bfa_port.h> | |
23 | #include <bfi/bfi.h> | |
24 | #include <bfi/bfi_port.h> | |
25 | #include <bfa_ioc.h> | |
26 | #include <cna/bfa_cna_trcmod.h> | |
27 | ||
28 | BFA_TRC_FILE(CNA, PORT); | |
29 | ||
30 | #define bfa_ioc_portid(__ioc) ((__ioc)->port_id) | |
31 | #define bfa_lpuid(__arg) bfa_ioc_portid(&(__arg)->ioc) | |
32 | ||
33 | static void | |
34 | bfa_port_stats_swap(struct bfa_port_s *port, union bfa_pport_stats_u *stats) | |
35 | { | |
36 | u32 *dip = (u32 *) stats; | |
37 | u32 t0, t1; | |
38 | int i; | |
39 | ||
40 | for (i = 0; i < sizeof(union bfa_pport_stats_u) / sizeof(u32); | |
41 | i += 2) { | |
42 | t0 = dip[i]; | |
43 | t1 = dip[i + 1]; | |
44 | #ifdef __BIGENDIAN | |
45 | dip[i] = bfa_os_ntohl(t0); | |
46 | dip[i + 1] = bfa_os_ntohl(t1); | |
47 | #else | |
48 | dip[i] = bfa_os_ntohl(t1); | |
49 | dip[i + 1] = bfa_os_ntohl(t0); | |
50 | #endif | |
51 | } | |
52 | ||
53 | /** todo | |
54 | * QoS stats r also swapped as 64bit; that structure also | |
55 | * has to use 64 bit counters | |
56 | */ | |
57 | } | |
58 | ||
59 | /** | |
60 | * bfa_port_enable_isr() | |
61 | * | |
62 | * | |
63 | * @param[in] port - Pointer to the port module | |
64 | * status - Return status from the f/w | |
65 | * | |
66 | * @return void | |
67 | */ | |
68 | static void | |
69 | bfa_port_enable_isr(struct bfa_port_s *port, bfa_status_t status) | |
70 | { | |
71 | bfa_assert(0); | |
72 | } | |
73 | ||
74 | /** | |
75 | * bfa_port_disable_isr() | |
76 | * | |
77 | * | |
78 | * @param[in] port - Pointer to the port module | |
79 | * status - Return status from the f/w | |
80 | * | |
81 | * @return void | |
82 | */ | |
83 | static void | |
84 | bfa_port_disable_isr(struct bfa_port_s *port, bfa_status_t status) | |
85 | { | |
86 | bfa_assert(0); | |
87 | } | |
88 | ||
89 | /** | |
90 | * bfa_port_get_stats_isr() | |
91 | * | |
92 | * | |
93 | * @param[in] port - Pointer to the Port module | |
94 | * status - Return status from the f/w | |
95 | * | |
96 | * @return void | |
97 | */ | |
98 | static void | |
99 | bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status) | |
100 | { | |
101 | port->stats_status = status; | |
102 | port->stats_busy = BFA_FALSE; | |
103 | ||
104 | if (status == BFA_STATUS_OK) { | |
105 | memcpy(port->stats, port->stats_dma.kva, | |
106 | sizeof(union bfa_pport_stats_u)); | |
107 | bfa_port_stats_swap(port, port->stats); | |
108 | } | |
109 | ||
110 | if (port->stats_cbfn) { | |
111 | port->stats_cbfn(port->stats_cbarg, status); | |
112 | port->stats_cbfn = NULL; | |
113 | } | |
114 | } | |
115 | ||
116 | /** | |
117 | * bfa_port_clear_stats_isr() | |
118 | * | |
119 | * | |
120 | * @param[in] port - Pointer to the Port module | |
121 | * status - Return status from the f/w | |
122 | * | |
123 | * @return void | |
124 | */ | |
125 | static void | |
126 | bfa_port_clear_stats_isr(struct bfa_port_s *port, bfa_status_t status) | |
127 | { | |
128 | port->stats_status = status; | |
129 | port->stats_busy = BFA_FALSE; | |
130 | ||
131 | if (port->stats_cbfn) { | |
132 | port->stats_cbfn(port->stats_cbarg, status); | |
133 | port->stats_cbfn = NULL; | |
134 | } | |
135 | } | |
136 | ||
137 | /** | |
138 | * bfa_port_isr() | |
139 | * | |
140 | * | |
141 | * @param[in] Pointer to the Port module data structure. | |
142 | * | |
143 | * @return void | |
144 | */ | |
145 | static void | |
146 | bfa_port_isr(void *cbarg, struct bfi_mbmsg_s *m) | |
147 | { | |
148 | struct bfa_port_s *port = (struct bfa_port_s *)cbarg; | |
149 | union bfi_port_i2h_msg_u *i2hmsg; | |
150 | ||
151 | i2hmsg = (union bfi_port_i2h_msg_u *)m; | |
152 | bfa_trc(port, m->mh.msg_id); | |
153 | ||
154 | switch (m->mh.msg_id) { | |
155 | case BFI_PORT_I2H_ENABLE_RSP: | |
156 | if (port->endis_pending == BFA_FALSE) | |
157 | break; | |
158 | bfa_port_enable_isr(port, i2hmsg->enable_rsp.status); | |
159 | break; | |
160 | ||
161 | case BFI_PORT_I2H_DISABLE_RSP: | |
162 | if (port->endis_pending == BFA_FALSE) | |
163 | break; | |
164 | bfa_port_disable_isr(port, i2hmsg->disable_rsp.status); | |
165 | break; | |
166 | ||
167 | case BFI_PORT_I2H_GET_STATS_RSP: | |
168 | /* | |
169 | * Stats busy flag is still set? (may be cmd timed out) | |
170 | */ | |
171 | if (port->stats_busy == BFA_FALSE) | |
172 | break; | |
173 | bfa_port_get_stats_isr(port, i2hmsg->getstats_rsp.status); | |
174 | break; | |
175 | ||
176 | case BFI_PORT_I2H_CLEAR_STATS_RSP: | |
177 | if (port->stats_busy == BFA_FALSE) | |
178 | break; | |
179 | bfa_port_clear_stats_isr(port, i2hmsg->clearstats_rsp.status); | |
180 | break; | |
181 | ||
182 | default: | |
183 | bfa_assert(0); | |
184 | } | |
185 | } | |
186 | ||
187 | /** | |
188 | * bfa_port_meminfo() | |
189 | * | |
190 | * | |
191 | * @param[in] void | |
192 | * | |
193 | * @return Size of DMA region | |
194 | */ | |
195 | u32 | |
196 | bfa_port_meminfo(void) | |
197 | { | |
198 | return BFA_ROUNDUP(sizeof(union bfa_pport_stats_u), BFA_DMA_ALIGN_SZ); | |
199 | } | |
200 | ||
201 | /** | |
202 | * bfa_port_mem_claim() | |
203 | * | |
204 | * | |
205 | * @param[in] port Port module pointer | |
206 | * dma_kva Kernel Virtual Address of Port DMA Memory | |
207 | * dma_pa Physical Address of Port DMA Memory | |
208 | * | |
209 | * @return void | |
210 | */ | |
211 | void | |
212 | bfa_port_mem_claim(struct bfa_port_s *port, u8 *dma_kva, u64 dma_pa) | |
213 | { | |
214 | port->stats_dma.kva = dma_kva; | |
215 | port->stats_dma.pa = dma_pa; | |
216 | } | |
217 | ||
218 | /** | |
219 | * bfa_port_enable() | |
220 | * | |
221 | * Send the Port enable request to the f/w | |
222 | * | |
223 | * @param[in] Pointer to the Port module data structure. | |
224 | * | |
225 | * @return Status | |
226 | */ | |
227 | bfa_status_t | |
228 | bfa_port_enable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, | |
229 | void *cbarg) | |
230 | { | |
231 | struct bfi_port_generic_req_s *m; | |
232 | ||
233 | /** todo Not implemented */ | |
234 | bfa_assert(0); | |
235 | ||
236 | if (!bfa_ioc_is_operational(port->ioc)) { | |
237 | bfa_trc(port, BFA_STATUS_IOC_FAILURE); | |
238 | return BFA_STATUS_IOC_FAILURE; | |
239 | } | |
240 | ||
241 | if (port->endis_pending) { | |
242 | bfa_trc(port, BFA_STATUS_DEVBUSY); | |
243 | return BFA_STATUS_DEVBUSY; | |
244 | } | |
245 | ||
246 | m = (struct bfi_port_generic_req_s *)port->endis_mb.msg; | |
247 | ||
248 | port->msgtag++; | |
249 | port->endis_cbfn = cbfn; | |
250 | port->endis_cbarg = cbarg; | |
251 | port->endis_pending = BFA_TRUE; | |
252 | ||
253 | bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_ENABLE_REQ, | |
254 | bfa_ioc_portid(port->ioc)); | |
255 | bfa_ioc_mbox_queue(port->ioc, &port->endis_mb); | |
256 | ||
257 | return BFA_STATUS_OK; | |
258 | } | |
259 | ||
260 | /** | |
261 | * bfa_port_disable() | |
262 | * | |
263 | * Send the Port disable request to the f/w | |
264 | * | |
265 | * @param[in] Pointer to the Port module data structure. | |
266 | * | |
267 | * @return Status | |
268 | */ | |
269 | bfa_status_t | |
270 | bfa_port_disable(struct bfa_port_s *port, bfa_port_endis_cbfn_t cbfn, | |
271 | void *cbarg) | |
272 | { | |
273 | struct bfi_port_generic_req_s *m; | |
274 | ||
275 | /** todo Not implemented */ | |
276 | bfa_assert(0); | |
277 | ||
278 | if (!bfa_ioc_is_operational(port->ioc)) { | |
279 | bfa_trc(port, BFA_STATUS_IOC_FAILURE); | |
280 | return BFA_STATUS_IOC_FAILURE; | |
281 | } | |
282 | ||
283 | if (port->endis_pending) { | |
284 | bfa_trc(port, BFA_STATUS_DEVBUSY); | |
285 | return BFA_STATUS_DEVBUSY; | |
286 | } | |
287 | ||
288 | m = (struct bfi_port_generic_req_s *)port->endis_mb.msg; | |
289 | ||
290 | port->msgtag++; | |
291 | port->endis_cbfn = cbfn; | |
292 | port->endis_cbarg = cbarg; | |
293 | port->endis_pending = BFA_TRUE; | |
294 | ||
295 | bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_DISABLE_REQ, | |
296 | bfa_ioc_portid(port->ioc)); | |
297 | bfa_ioc_mbox_queue(port->ioc, &port->endis_mb); | |
298 | ||
299 | return BFA_STATUS_OK; | |
300 | } | |
301 | ||
302 | /** | |
303 | * bfa_port_get_stats() | |
304 | * | |
305 | * Send the request to the f/w to fetch Port statistics. | |
306 | * | |
307 | * @param[in] Pointer to the Port module data structure. | |
308 | * | |
309 | * @return Status | |
310 | */ | |
311 | bfa_status_t | |
312 | bfa_port_get_stats(struct bfa_port_s *port, union bfa_pport_stats_u *stats, | |
313 | bfa_port_stats_cbfn_t cbfn, void *cbarg) | |
314 | { | |
315 | struct bfi_port_get_stats_req_s *m; | |
316 | ||
317 | if (!bfa_ioc_is_operational(port->ioc)) { | |
318 | bfa_trc(port, BFA_STATUS_IOC_FAILURE); | |
319 | return BFA_STATUS_IOC_FAILURE; | |
320 | } | |
321 | ||
322 | if (port->stats_busy) { | |
323 | bfa_trc(port, BFA_STATUS_DEVBUSY); | |
324 | return BFA_STATUS_DEVBUSY; | |
325 | } | |
326 | ||
327 | m = (struct bfi_port_get_stats_req_s *)port->stats_mb.msg; | |
328 | ||
329 | port->stats = stats; | |
330 | port->stats_cbfn = cbfn; | |
331 | port->stats_cbarg = cbarg; | |
332 | port->stats_busy = BFA_TRUE; | |
333 | bfa_dma_be_addr_set(m->dma_addr, port->stats_dma.pa); | |
334 | ||
335 | bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_GET_STATS_REQ, | |
336 | bfa_ioc_portid(port->ioc)); | |
337 | bfa_ioc_mbox_queue(port->ioc, &port->stats_mb); | |
338 | ||
339 | return BFA_STATUS_OK; | |
340 | } | |
341 | ||
342 | /** | |
343 | * bfa_port_clear_stats() | |
344 | * | |
345 | * | |
346 | * @param[in] Pointer to the Port module data structure. | |
347 | * | |
348 | * @return Status | |
349 | */ | |
350 | bfa_status_t | |
351 | bfa_port_clear_stats(struct bfa_port_s *port, bfa_port_stats_cbfn_t cbfn, | |
352 | void *cbarg) | |
353 | { | |
354 | struct bfi_port_generic_req_s *m; | |
355 | ||
356 | if (!bfa_ioc_is_operational(port->ioc)) { | |
357 | bfa_trc(port, BFA_STATUS_IOC_FAILURE); | |
358 | return BFA_STATUS_IOC_FAILURE; | |
359 | } | |
360 | ||
361 | if (port->stats_busy) { | |
362 | bfa_trc(port, BFA_STATUS_DEVBUSY); | |
363 | return BFA_STATUS_DEVBUSY; | |
364 | } | |
365 | ||
366 | m = (struct bfi_port_generic_req_s *)port->stats_mb.msg; | |
367 | ||
368 | port->stats_cbfn = cbfn; | |
369 | port->stats_cbarg = cbarg; | |
370 | port->stats_busy = BFA_TRUE; | |
371 | ||
372 | bfi_h2i_set(m->mh, BFI_MC_PORT, BFI_PORT_H2I_CLEAR_STATS_REQ, | |
373 | bfa_ioc_portid(port->ioc)); | |
374 | bfa_ioc_mbox_queue(port->ioc, &port->stats_mb); | |
375 | ||
376 | return BFA_STATUS_OK; | |
377 | } | |
378 | ||
379 | /** | |
380 | * bfa_port_hbfail() | |
381 | * | |
382 | * | |
383 | * @param[in] Pointer to the Port module data structure. | |
384 | * | |
385 | * @return void | |
386 | */ | |
387 | void | |
388 | bfa_port_hbfail(void *arg) | |
389 | { | |
390 | struct bfa_port_s *port = (struct bfa_port_s *)arg; | |
391 | ||
392 | /* | |
393 | * Fail any pending get_stats/clear_stats requests | |
394 | */ | |
395 | if (port->stats_busy) { | |
396 | if (port->stats_cbfn) | |
397 | port->stats_cbfn(port->dev, BFA_STATUS_FAILED); | |
398 | port->stats_cbfn = NULL; | |
399 | port->stats_busy = BFA_FALSE; | |
400 | } | |
401 | ||
402 | /* | |
403 | * Clear any enable/disable is pending | |
404 | */ | |
405 | if (port->endis_pending) { | |
406 | if (port->endis_cbfn) | |
407 | port->endis_cbfn(port->dev, BFA_STATUS_FAILED); | |
408 | port->endis_cbfn = NULL; | |
409 | port->endis_pending = BFA_FALSE; | |
410 | } | |
411 | } | |
412 | ||
413 | /** | |
414 | * bfa_port_attach() | |
415 | * | |
416 | * | |
417 | * @param[in] port - Pointer to the Port module data structure | |
418 | * ioc - Pointer to the ioc module data structure | |
419 | * dev - Pointer to the device driver module data structure | |
420 | * The device driver specific mbox ISR functions have | |
421 | * this pointer as one of the parameters. | |
422 | * trcmod - | |
423 | * logmod - | |
424 | * | |
425 | * @return void | |
426 | */ | |
427 | void | |
428 | bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc, void *dev, | |
429 | struct bfa_trc_mod_s *trcmod, struct bfa_log_mod_s *logmod) | |
430 | { | |
431 | bfa_assert(port); | |
432 | ||
433 | port->dev = dev; | |
434 | port->ioc = ioc; | |
435 | port->trcmod = trcmod; | |
436 | port->logmod = logmod; | |
437 | ||
438 | port->stats_busy = port->endis_pending = BFA_FALSE; | |
439 | port->stats_cbfn = port->endis_cbfn = NULL; | |
440 | ||
441 | bfa_ioc_mbox_regisr(port->ioc, BFI_MC_PORT, bfa_port_isr, port); | |
442 | bfa_ioc_hbfail_init(&port->hbfail, bfa_port_hbfail, port); | |
443 | bfa_ioc_hbfail_register(port->ioc, &port->hbfail); | |
444 | ||
445 | bfa_trc(port, 0); | |
446 | } | |
447 | ||
448 | /** | |
449 | * bfa_port_detach() | |
450 | * | |
451 | * | |
452 | * @param[in] port - Pointer to the Port module data structure | |
453 | * | |
454 | * @return void | |
455 | */ | |
456 | void | |
457 | bfa_port_detach(struct bfa_port_s *port) | |
458 | { | |
459 | bfa_trc(port, 0); | |
460 | } |