1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /*
27 * This file defines interfaces between fcoe and fct driver.
28 */
29
30 /*
31 * Driver kernel header files
32 */
33 #include <sys/conf.h>
34 #include <sys/ddi.h>
35 #include <sys/stat.h>
36 #include <sys/pci.h>
37 #include <sys/sunddi.h>
38 #include <sys/modctl.h>
39 #include <sys/file.h>
40 #include <sys/cred.h>
41 #include <sys/byteorder.h>
42 #include <sys/atomic.h>
43 #include <sys/modhash.h>
44 #include <sys/scsi/scsi.h>
45 #include <sys/ethernet.h>
46
47 /*
48 * COMSTAR header files
49 */
50 #include <sys/stmf_defines.h>
51 #include <sys/fct_defines.h>
52 #include <sys/stmf.h>
53 #include <sys/portif.h>
54 #include <sys/fct.h>
55
56 /*
57 * FCoE hader files
58 */
59 #include <sys/fcoe/fcoe_common.h>
60
61 /*
62 * Driver's own header files
63 */
64 #include "fcoet.h"
65 #include "fcoet_fc.h"
66 #include "fcoet_eth.h"
67
68 /*
69 * function forward declaration
70 */
71 static fct_status_t fcoet_fill_plogi_req(fct_local_port_t *port,
72 fct_remote_port_t *rp, fct_cmd_t *login);
73 static fct_status_t fcoet_fill_plogi_resp(fct_local_port_t *port,
74 fct_remote_port_t *rp, fct_cmd_t *login);
75 static fct_status_t fcoet_send_sol_els(fct_cmd_t *cmd);
76 static fct_status_t fcoet_send_sol_ct(fct_cmd_t *cmd);
77 static fct_status_t fcoet_send_good_status(fct_cmd_t *cmd);
78 static fct_status_t fcoet_send_els_response(fct_cmd_t *cmd);
79 static fct_status_t fcoet_send_abts_response(fct_cmd_t *cmd, uint32_t flags);
80 static fct_status_t fcoet_logo_fabric(fcoet_soft_state_t *ss);
81
82 /*
83 * Return the lower link information
84 */
85 fct_status_t
86 fcoet_get_link_info(fct_local_port_t *port, fct_link_info_t *li)
87 {
88 bcopy(&PORT2SS(port)->ss_link_info, li, sizeof (fct_link_info_t));
89 return (FCT_SUCCESS);
90 }
91
92 /*
93 * FCT will call this, when it wants to send PLOGI or has received PLOGI.
94 */
95 fct_status_t
96 fcoet_register_remote_port(fct_local_port_t *port, fct_remote_port_t *rp,
97 fct_cmd_t *login)
98 {
99 uint16_t handle;
100 fct_status_t ret;
101
102 switch (rp->rp_id) {
103 case 0xFFFFFC:
104 handle = 0x7FC;
105 break;
106
107 case 0xFFFFFD:
108 handle = 0x7FD;
109 break;
110
111 case 0xFFFFFE:
112 handle = 0x7FE;
113 break;
114
115 case 0xFFFFFF:
116 handle = 0x7FF;
117 break;
118
119 default:
120 /*
121 * For not well-known address, we let FCT to select one.
122 */
123 handle = FCT_HANDLE_NONE;
124 break;
125 }
126
127 rp->rp_handle = handle;
128 if (login->cmd_type == FCT_CMD_SOL_ELS) {
129 ret = fcoet_fill_plogi_req(port, rp, login);
130 } else {
131 ret = fcoet_fill_plogi_resp(port, rp, login);
132 }
133
134 return (ret);
135 }
136
137 /*
138 * FCT will call this to say "FCoET can release resources with this RP now."
139 */
140 /* ARGSUSED */
141 fct_status_t
142 fcoet_deregister_remote_port(fct_local_port_t *port, fct_remote_port_t *rp)
143 {
144 fcoet_soft_state_t *this_ss = PORT2SS(port);
145
146 this_ss->ss_rport_dereg_state = 0;
147 this_ss->ss_rportid_in_dereg = 0;
148 return (FCT_SUCCESS);
149 }
150
151 fct_status_t
152 fcoet_send_cmd(fct_cmd_t *cmd)
153 {
154 if (cmd->cmd_type == FCT_CMD_SOL_ELS) {
155 return (fcoet_send_sol_els(cmd));
156 } else if (cmd->cmd_type == FCT_CMD_SOL_CT) {
157 return (fcoet_send_sol_ct(cmd));
158 }
159
160 return (FCT_FAILURE);
161 }
162
163 /*
164 * SCSI response phase
165 * ELS_ACC/ELS_RJT
166 */
167 fct_status_t
168 fcoet_send_cmd_response(fct_cmd_t *cmd, uint32_t ioflags)
169 {
170 char info[FCT_INFO_LEN];
171
172 if (cmd->cmd_type == FCT_CMD_FCP_XCHG) {
173 if (ioflags & FCT_IOF_FORCE_FCA_DONE) {
174 goto send_cmd_rsp_error;
175 } else {
176 return (fcoet_send_status(cmd));
177 }
178 }
179
180 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
181 if (ioflags & FCT_IOF_FORCE_FCA_DONE) {
182 goto send_cmd_rsp_error;
183 } else {
184 return (fcoet_send_els_response(cmd));
185 }
186 }
187
188 if (ioflags & FCT_IOF_FORCE_FCA_DONE) {
189 cmd->cmd_handle = 0;
190 }
191
192 if (cmd->cmd_type == FCT_CMD_RCVD_ABTS) {
193 return (fcoet_send_abts_response(cmd, 0));
194 } else {
195 ASSERT(0);
196 return (FCT_FAILURE);
197 }
198
199 send_cmd_rsp_error:
200 (void) snprintf(info, sizeof (info), "fcoet_send_cmd_response: can not "
201 "handle FCT_IOF_FORCE_FCA_DONE for cmd %p, ioflags-%x", (void *)cmd,
202 ioflags);
203 (void) fct_port_shutdown(CMD2SS(cmd)->ss_port,
204 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
205 return (FCT_FAILURE);
206 }
207
208 /*
209 * It's for read/write (xfer_rdy)
210 */
211 /* ARGSUSED */
212 fct_status_t
213 fcoet_xfer_scsi_data(fct_cmd_t *cmd, stmf_data_buf_t *dbuf, uint32_t ioflags)
214 {
215 fcoe_frame_t *frm;
216 int idx;
217 int frm_num;
218 int data_size;
219 int left_size;
220 int offset;
221 fcoet_exchange_t *xch = CMD2XCH(cmd);
222
223 ASSERT(!xch->xch_dbufs[dbuf->db_relative_offset/FCOET_MAX_DBUF_LEN]);
224 xch->xch_dbufs[dbuf->db_relative_offset/FCOET_MAX_DBUF_LEN] = dbuf;
225
226 left_size = (int)dbuf->db_data_size;
227 if (dbuf->db_relative_offset == 0)
228 xch->xch_left_data_size =
229 XCH2TASK(xch)->task_expected_xfer_length;
230
231 if (dbuf->db_flags & DB_DIRECTION_FROM_RPORT) {
232 /*
233 * If it's write type command, we need send xfer_rdy now
234 * We may need to consider bidirectional command later
235 */
236 dbuf->db_sglist_length = 0;
237 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(
238 CMD2SS(cmd)->ss_eport, sizeof (fcoe_fcp_xfer_rdy_t) +
239 FCFH_SIZE, NULL);
240 if (frm == NULL) {
241 ASSERT(0);
242 return (FCT_FAILURE);
243 } else {
244 fcoet_init_tfm(frm, CMD2XCH(cmd));
245 bzero(frm->frm_payload, frm->frm_payload_size);
246 }
247
248 FFM_R_CTL(0x05, frm);
249 FRM2TFM(frm)->tfm_rctl = 0x05;
250 FFM_TYPE(0x08, frm);
251 FFM_F_CTL(0x890000, frm);
252 FFM_OXID(cmd->cmd_oxid, frm);
253 FFM_RXID(cmd->cmd_rxid, frm);
254 FFM_S_ID(cmd->cmd_lportid, frm);
255 FFM_D_ID(cmd->cmd_rportid, frm);
256 FCOE_V2B_4(dbuf->db_relative_offset, frm->frm_payload);
257 FCOE_V2B_4(dbuf->db_data_size, frm->frm_payload + 4);
258 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
259
260 return (FCT_SUCCESS);
261 }
262
263 /*
264 * It's time to transfer READ data to remote side
265 */
266 frm_num = (dbuf->db_data_size + CMD2SS(cmd)->ss_fcp_data_payload_size -
267 1) / CMD2SS(cmd)->ss_fcp_data_payload_size;
268 offset = dbuf->db_relative_offset;
269 for (idx = 0; idx < frm_num; idx++) {
270 if (idx == (frm_num -1)) {
271 data_size = P2ROUNDUP(left_size, 4);
272 } else {
273 data_size = CMD2SS(cmd)->ss_fcp_data_payload_size;
274 }
275
276 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(
277 CMD2SS(cmd)->ss_eport, data_size + FCFH_SIZE,
278 FCOET_GET_NETB(dbuf, idx));
279 if (frm == NULL) {
280 ASSERT(0);
281 return (FCT_FAILURE);
282 } else {
283 fcoet_init_tfm(frm, CMD2XCH(cmd));
284 /*
285 * lock the xchg to avoid being released (by abort)
286 * after sent out and before release
287 */
288 FCOET_BUSY_XCHG(CMD2XCH(cmd));
289 }
290
291 FFM_R_CTL(0x01, frm);
292 FRM2TFM(frm)->tfm_rctl = 0x01;
293 FRM2TFM(frm)->tfm_buf_idx =
294 dbuf->db_relative_offset/FCOET_MAX_DBUF_LEN;
295 FFM_TYPE(0x08, frm);
296 if (idx != frm_num - 1) {
297 FFM_F_CTL(0x800008, frm);
298 } else {
299 FFM_F_CTL(0x880008 | (data_size - left_size), frm);
300 }
301
302 FFM_OXID(cmd->cmd_oxid, frm);
303 FFM_RXID(cmd->cmd_rxid, frm);
304 FFM_S_ID(cmd->cmd_lportid, frm);
305 FFM_D_ID(cmd->cmd_rportid, frm);
306 FFM_SEQ_CNT(xch->xch_sequence_no, frm);
307 atomic_inc_8(&xch->xch_sequence_no);
308 FFM_PARAM(offset, frm);
309 offset += data_size;
310 left_size -= data_size;
311
312 /*
313 * Disassociate netbs which will be freed by NIC driver
314 */
315 FCOET_SET_NETB(dbuf, idx, NULL);
316
317 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
318 }
319
320 return (FCT_SUCCESS);
321 }
322
323 fct_status_t
324 fcoet_abort_cmd(struct fct_local_port *port, fct_cmd_t *cmd, uint32_t flags)
325 {
326 fcoet_soft_state_t *this_ss = PORT2SS(port);
327 fct_status_t fct_ret = FCT_SUCCESS;
328
329 FCOET_LOG("fcoet_abort_cmd", "cmd=%p, xch=%p, cmd_specific=%p",
330 cmd, cmd->cmd_fca_private, cmd->cmd_specific);
331 switch (cmd->cmd_type) {
332 case FCT_CMD_RCVD_ABTS:
333 /*
334 * Sometimes unsolicited ABTS request will be received twice
335 * and the first ABTS is not done yet, so the second ABTS
336 * will be passed down here, in this case we will do
337 * nothing and abts response is not needed to be sent
338 * fct_ret = fcoet_send_abts_response(cmd, 1);
339 */
340 break;
341 case FCT_CMD_FCP_XCHG:
342 case FCT_CMD_RCVD_ELS:
343 if (CMD2XCH(cmd)->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
344 break;
345 }
346
347 CMD2XCH(cmd)->xch_flags |= XCH_FLAG_FCT_CALLED_ABORT;
348 (void) fcoet_clear_unsol_exchange(CMD2XCH(cmd));
349 if (!(flags & FCT_IOF_FORCE_FCA_DONE)) {
350 mutex_enter(&this_ss->ss_watch_mutex);
351 CMD2XCH(cmd)->xch_start_time = ddi_get_lbolt();
352 list_insert_tail(&this_ss->ss_abort_xchg_list,
353 CMD2XCH(cmd));
354 cv_signal(&this_ss->ss_watch_cv);
355 mutex_exit(&this_ss->ss_watch_mutex);
356 }
357 break;
358
359 case FCT_CMD_SOL_ELS:
360 case FCT_CMD_SOL_CT:
361 if (CMD2XCH(cmd)->xch_flags & XCH_FLAG_FCT_CALLED_ABORT) {
362 break;
363 }
364
365 CMD2XCH(cmd)->xch_flags |= XCH_FLAG_FCT_CALLED_ABORT;
366 fcoet_clear_sol_exchange(CMD2XCH(cmd));
367
368 if (!(flags & FCT_IOF_FORCE_FCA_DONE)) {
369 mutex_enter(&this_ss->ss_watch_mutex);
370 CMD2XCH(cmd)->xch_start_time = ddi_get_lbolt();
371 cv_signal(&this_ss->ss_watch_cv);
372 list_insert_tail(&this_ss->ss_abort_xchg_list,
373 CMD2XCH(cmd));
374 mutex_exit(&this_ss->ss_watch_mutex);
375 }
376
377 break;
378
379 default:
380 ASSERT(0);
381 break;
382 }
383
384 if ((flags & FCT_IOF_FORCE_FCA_DONE) &&
385 (cmd->cmd_type != FCT_CMD_FCP_XCHG)) {
386 cmd->cmd_handle = 0;
387 }
388
389 return (fct_ret);
390 }
391
392 /* ARGSUSED */
393 fct_status_t
394 fcoet_do_flogi(fct_local_port_t *port, fct_flogi_xchg_t *fx)
395 {
396 cmn_err(CE_WARN, "FLOGI requested (not supported)");
397 return (FCT_FAILURE);
398 }
399
400 void
401 fcoet_send_sol_flogi(fcoet_soft_state_t *ss)
402 {
403 fcoet_exchange_t *xch;
404 fct_cmd_t *cmd;
405 fct_els_t *els;
406 fcoe_frame_t *frm;
407
408 /*
409 * FCT will initialize fct_cmd_t
410 * Initialize fcoet_exchange
411 */
412 cmd = (fct_cmd_t *)fct_alloc(FCT_STRUCT_CMD_SOL_ELS,
413 sizeof (fcoet_exchange_t), 0);
414 xch = CMD2XCH(cmd);
415 els = CMD2ELS(cmd);
416
417 xch->xch_oxid = atomic_add_16_nv(&ss->ss_next_sol_oxid, 1);
418 if (xch->xch_oxid == 0xFFFF) {
419 xch->xch_oxid =
420 atomic_add_16_nv(&ss->ss_next_sol_oxid, 1);
421 }
422 xch->xch_rxid = 0xFFFF;
423 xch->xch_flags = 0;
424 xch->xch_ss = ss;
425 xch->xch_cmd = cmd;
426 xch->xch_current_seq = NULL;
427 xch->xch_start_time = ddi_get_lbolt();
428
429 /*
430 * Keep it to compare with response
431 */
432 ss->ss_sol_flogi = xch;
433 els->els_resp_alloc_size = 116;
434 els->els_resp_size = 116;
435 els->els_resp_payload = (uint8_t *)
436 kmem_zalloc(els->els_resp_size, KM_SLEEP);
437 (void) mod_hash_insert(xch->xch_ss->ss_sol_oxid_hash,
438 (mod_hash_key_t)(uintptr_t)xch->xch_oxid, (mod_hash_val_t)xch);
439 xch->xch_flags |= XCH_FLAG_IN_HASH_TABLE;
440 atomic_or_32(&ss->ss_flags, SS_FLAG_DELAY_PLOGI);
441
442 /*
443 * FCoE will initialize fcoe_frame_t
444 */
445 frm = ss->ss_eport->eport_alloc_frame(ss->ss_eport,
446 FLOGI_REQ_PAYLOAD_SIZE + FCFH_SIZE, NULL);
447 if (frm == NULL) {
448 ASSERT(0);
449 return;
450 } else {
451 fcoet_init_tfm(frm, xch);
452 bzero(frm->frm_payload, frm->frm_payload_size);
453 }
454
455 FFM_R_CTL(0x22, frm);
456 FRM2TFM(frm)->tfm_rctl = 0x22;
457 FFM_TYPE(0x01, frm);
458 FFM_F_CTL(0x290000, frm);
459 FFM_OXID(xch->xch_oxid, frm);
460 FFM_RXID(xch->xch_rxid, frm);
461 FFM_D_ID(0xfffffe, frm);
462 frm->frm_payload[0] = ELS_OP_FLOGI;
463 /* Common Service Parameters */
464 frm->frm_payload[4] = 0x20;
465 frm->frm_payload[5] = 0x08;
466 frm->frm_payload[6] = 0x0;
467 frm->frm_payload[7] = 0x03;
468 /* N_PORT */
469 frm->frm_payload[8] = 0x88;
470 frm->frm_payload[9] = 0x00;
471 frm->frm_payload[10] = 0x08;
472 frm->frm_payload[11] = 0x0;
473 frm->frm_payload[12] = 0x0;
474 frm->frm_payload[13] = 0xff;
475 frm->frm_payload[14] = 0x0;
476 frm->frm_payload[15] = 0x03;
477 frm->frm_payload[16] = 0x0;
478 frm->frm_payload[17] = 0x0;
479 frm->frm_payload[18] = 0x07;
480 frm->frm_payload[19] = 0xd0;
481 /* PWWN and NWWN */
482 frm->frm_payload[20] = 0x0;
483 bcopy(ss->ss_eport->eport_portwwn, frm->frm_payload+20, 8);
484 bcopy(ss->ss_eport->eport_nodewwn, frm->frm_payload+28, 8);
485 /* Class 3 Service Parameters */
486 frm->frm_payload[68] = 0x88;
487 frm->frm_payload[74] = 0x08;
488 frm->frm_payload[77] = 0xff;
489
490 ss->ss_eport->eport_tx_frame(frm);
491 xch->xch_flags |= XCH_FLAG_NONFCP_REQ_SENT;
492 }
493
494 /*
495 * This is for solicited FLOGI only
496 */
497 void
498 fcoet_send_sol_abts(fcoet_exchange_t *xch)
499 {
500 fcoe_frame_t *frm;
501 fcoet_soft_state_t *ss = xch->xch_ss;
502
503 /*
504 * FCoE will initialize fcoe_frame_t
505 * ABTS has no payload
506 */
507 frm = ss->ss_eport->eport_alloc_frame(ss->ss_eport,
508 FCFH_SIZE, NULL);
509 if (frm == NULL) {
510 ASSERT(0);
511 return;
512 } else {
513 fcoet_init_tfm(frm, xch);
514 frm->frm_payload = NULL;
515 }
516
517 FFM_R_CTL(0x81, frm);
518 FRM2TFM(frm)->tfm_rctl = 0x81;
519 FFM_F_CTL(0x090000, frm);
520 FFM_OXID(xch->xch_oxid, frm);
521 FFM_RXID(xch->xch_rxid, frm);
522 FFM_D_ID(0xfffffe, frm);
523 FFM_SEQ_CNT(xch->xch_sequence_no, frm);
524 xch->xch_start_time = ddi_get_lbolt();
525
526 ss->ss_eport->eport_tx_frame(frm);
527 }
528
529 void
530 fcoet_ctl(struct fct_local_port *port, int cmd, void *arg)
531 {
532 stmf_change_status_t st;
533 stmf_state_change_info_t *ssci = (stmf_state_change_info_t *)arg;
534 fcoet_soft_state_t *this_ss = PORT2SS(port);
535
536 st.st_completion_status = FCT_SUCCESS;
537 st.st_additional_info = NULL;
538
539 switch (cmd) {
540 case FCT_CMD_PORT_ONLINE:
541 if (this_ss->ss_state == FCT_STATE_ONLINE)
542 st.st_completion_status = STMF_ALREADY;
543 else if (this_ss->ss_state != FCT_STATE_OFFLINE)
544 st.st_completion_status = FCT_FAILURE;
545 if (st.st_completion_status == FCT_SUCCESS) {
546 this_ss->ss_state = FCT_STATE_ONLINING;
547 this_ss->ss_state_not_acked = 1;
548 st.st_completion_status = fcoet_enable_port(this_ss);
549 if (st.st_completion_status != STMF_SUCCESS) {
550 this_ss->ss_state = FCT_STATE_OFFLINE;
551 this_ss->ss_state_not_acked = 0;
552 } else {
553 this_ss->ss_state = FCT_STATE_ONLINE;
554 }
555 }
556 fct_ctl(port->port_lport, FCT_CMD_PORT_ONLINE_COMPLETE, &st);
557 this_ss->ss_change_state_flags = 0;
558 break;
559
560 case FCT_CMD_PORT_OFFLINE:
561 if (this_ss->ss_state == FCT_STATE_OFFLINE) {
562 st.st_completion_status = STMF_ALREADY;
563 } else if (this_ss->ss_state != FCT_STATE_ONLINE) {
564 st.st_completion_status = FCT_FAILURE;
565 }
566 if (st.st_completion_status == FCT_SUCCESS) {
567 this_ss->ss_state = FCT_STATE_OFFLINING;
568 this_ss->ss_state_not_acked = 1;
569 this_ss->ss_change_state_flags = ssci->st_rflags;
570 st.st_completion_status = fcoet_disable_port(this_ss);
571 if (st.st_completion_status != STMF_SUCCESS) {
572 this_ss->ss_state = FCT_STATE_ONLINE;
573 this_ss->ss_state_not_acked = 0;
574 } else {
575 this_ss->ss_state = FCT_STATE_OFFLINE;
576 }
577 }
578 /*
579 * Notify the watchdog to do clear work
580 */
581 mutex_enter(&this_ss->ss_watch_mutex);
582 cv_signal(&this_ss->ss_watch_cv);
583 mutex_exit(&this_ss->ss_watch_mutex);
584 fct_ctl(port->port_lport, FCT_CMD_PORT_OFFLINE_COMPLETE, &st);
585 break;
586
587 case FCT_ACK_PORT_ONLINE_COMPLETE:
588 this_ss->ss_state_not_acked = 0;
589 break;
590
591 case FCT_ACK_PORT_OFFLINE_COMPLETE:
592 this_ss->ss_state_not_acked = 0;
593 if (this_ss->ss_change_state_flags & STMF_RFLAG_RESET) {
594 if (fct_port_initialize(port,
595 this_ss->ss_change_state_flags,
596 "fcoet_ctl FCT_ACK_PORT_OFFLINE_COMPLETE "
597 "with RLFLAG_RESET") != FCT_SUCCESS) {
598 cmn_err(CE_WARN, "fcoet_ctl: "
599 "fct_port_initialize %s failed",
600 this_ss->ss_alias);
601 FCOET_LOG("fcoet_ctl: fct_port_initialize "
602 "%s failed", this_ss->ss_alias);
603 }
604 }
605 break;
606 default:
607 FCOET_LOG("fcoet_ctl", "Unsupported cmd %x", cmd);
608 break;
609 }
610 }
611
612 /*
613 * Filling the hba attributes
614 */
615 /* ARGSUSED */
616 void
617 fcoet_populate_hba_fru_details(struct fct_local_port *port,
618 struct fct_port_attrs *port_attrs)
619 {
620 (void) snprintf(port_attrs->manufacturer, FCHBA_MANUFACTURER_LEN,
621 "Sun Microsystems, Inc.");
622 (void) snprintf(port_attrs->driver_name, FCHBA_DRIVER_NAME_LEN,
623 "%s", FCOET_NAME);
624 (void) snprintf(port_attrs->driver_version, FCHBA_DRIVER_VERSION_LEN,
625 "%s", FCOET_VERSION);
626 (void) strcpy(port_attrs->serial_number, "N/A");
627 (void) strcpy(port_attrs->hardware_version, "N/A");
628 (void) strcpy(port_attrs->model, "FCoE Virtual FC HBA");
629 (void) strcpy(port_attrs->model_description, "N/A");
630 (void) strcpy(port_attrs->firmware_version, "N/A");
631 (void) strcpy(port_attrs->option_rom_version, "N/A");
632
633 port_attrs->vendor_specific_id = 0xFC0E;
634 port_attrs->max_frame_size = 2136;
635 port_attrs->supported_cos = 0x10000000;
636 /* Specified a fix speed here, need to change it in the future */
637 port_attrs->supported_speed = PORT_SPEED_1G | PORT_SPEED_10G;
638 }
639
640
641 static fct_status_t
642 fcoet_send_sol_els(fct_cmd_t *cmd)
643 {
644 fcoe_frame_t *frm;
645 fcoet_exchange_t *xch = NULL;
646
647 xch = CMD2XCH(cmd);
648 xch->xch_flags = 0;
649 xch->xch_ss = CMD2SS(cmd);
650 xch->xch_cmd = cmd;
651 xch->xch_current_seq = NULL;
652 xch->xch_left_data_size = 0;
653 xch->xch_sequence_no = 0;
654 xch->xch_start_time = ddi_get_lbolt();
655 xch->xch_rxid = 0xFFFF;
656 xch->xch_oxid = atomic_add_16_nv(&xch->xch_ss->ss_next_sol_oxid, 1);
657 if (xch->xch_oxid == 0xFFFF) {
658 xch->xch_oxid =
659 atomic_add_16_nv(&xch->xch_ss->ss_next_sol_oxid, 1);
660 }
661
662 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
663 CMD2ELS(cmd)->els_req_size + FCFH_SIZE, NULL);
664 if (frm == NULL) {
665 ASSERT(0);
666 return (FCT_FAILURE);
667 } else {
668 fcoet_init_tfm(frm, CMD2XCH(cmd));
669 bzero(frm->frm_payload, frm->frm_payload_size);
670 }
671
672 (void) mod_hash_insert(FRM2SS(frm)->ss_sol_oxid_hash,
673 (mod_hash_key_t)(uintptr_t)xch->xch_oxid, (mod_hash_val_t)xch);
674 xch->xch_flags |= XCH_FLAG_IN_HASH_TABLE;
675 bcopy(CMD2ELS(cmd)->els_req_payload, frm->frm_payload,
676 frm->frm_payload_size);
677 FFM_R_CTL(0x22, frm);
678 FRM2TFM(frm)->tfm_rctl = 0x22;
679 FFM_TYPE(0x01, frm);
680 FFM_F_CTL(0x290000, frm);
681 FFM_OXID(xch->xch_oxid, frm);
682 FFM_RXID(xch->xch_rxid, frm);
683 FFM_S_ID(cmd->cmd_lportid, frm);
684 FFM_D_ID(cmd->cmd_rportid, frm);
685 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
686
687 return (FCT_SUCCESS);
688 }
689
690 static fct_status_t
691 fcoet_send_sol_ct(fct_cmd_t *cmd)
692 {
693 fcoe_frame_t *frm;
694 fcoet_exchange_t *xch;
695
696 xch = CMD2XCH(cmd);
697 xch->xch_flags = 0;
698 xch->xch_ss = CMD2SS(cmd);
699 xch->xch_cmd = cmd;
700 xch->xch_current_seq = NULL;
701 xch->xch_left_data_size = 0;
702 xch->xch_sequence_no = 0;
703 xch->xch_start_time = ddi_get_lbolt();
704 xch->xch_rxid = 0xFFFF;
705 xch->xch_oxid = atomic_add_16_nv(&xch->xch_ss->ss_next_sol_oxid, 1);
706 if (xch->xch_oxid == 0xFFFF) {
707 xch->xch_oxid =
708 atomic_add_16_nv(&xch->xch_ss->ss_next_sol_oxid, 1);
709 }
710
711 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
712 CMD2ELS(cmd)->els_req_size + FCFH_SIZE, NULL);
713 if (frm == NULL) {
714 ASSERT(0);
715 return (FCT_FAILURE);
716 } else {
717 fcoet_init_tfm(frm, CMD2XCH(cmd));
718 bzero(frm->frm_payload, frm->frm_payload_size);
719 }
720
721 (void) mod_hash_insert(FRM2SS(frm)->ss_sol_oxid_hash,
722 (mod_hash_key_t)(uintptr_t)xch->xch_oxid, (mod_hash_val_t)xch);
723 xch->xch_flags |= XCH_FLAG_IN_HASH_TABLE;
724 bcopy(CMD2ELS(cmd)->els_req_payload, frm->frm_payload,
725 frm->frm_payload_size);
726 FFM_R_CTL(0x2, frm);
727 FRM2TFM(frm)->tfm_rctl = 0x2;
728 FFM_TYPE(0x20, frm);
729 FFM_F_CTL(0x290000, frm);
730 FFM_OXID(xch->xch_oxid, frm);
731 FFM_RXID(xch->xch_rxid, frm);
732 FFM_S_ID(cmd->cmd_lportid, frm);
733 FFM_D_ID(cmd->cmd_rportid, frm);
734 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
735
736 return (FCT_SUCCESS);
737 }
738
739 fct_status_t
740 fcoet_send_status(fct_cmd_t *cmd)
741 {
742 fcoe_frame_t *frm;
743 scsi_task_t *task = CMD2TASK(cmd);
744 fcoe_fcp_rsp_t *ffr;
745 int raw_frame_size;
746
747 /*
748 * Fast channel for good status phase
749 */
750 if (task->task_scsi_status == STATUS_GOOD && !task->task_resid) {
751 return (fcoet_send_good_status(cmd));
752 }
753
754 raw_frame_size = FCFH_SIZE + sizeof (fcoe_fcp_rsp_t);
755 if (task->task_scsi_status == STATUS_CHECK) {
756 raw_frame_size += task->task_sense_length;
757 }
758 raw_frame_size = P2ROUNDUP(raw_frame_size, 4);
759
760 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
761 raw_frame_size, NULL);
762 if (frm == NULL) {
763 ASSERT(0);
764 return (FCT_FAILURE);
765 } else {
766 fcoet_init_tfm(frm, CMD2XCH(cmd));
767 bzero(frm->frm_payload, frm->frm_payload_size);
768 /*
769 * lock the xchg to avoid being released (by abort)
770 * after sent out and before release
771 */
772 FCOET_BUSY_XCHG(CMD2XCH(cmd));
773 }
774
775 /*
776 * If there's sense data, copy it first
777 */
778 if ((task->task_scsi_status == STATUS_CHECK) &&
779 task->task_sense_length) {
780 bcopy(task->task_sense_data, frm->frm_payload +
781 sizeof (fcoe_fcp_rsp_t), task->task_sense_length);
782 }
783
784 /*
785 * Fill fcp_rsp
786 */
787 ffr = (fcoe_fcp_rsp_t *)frm->frm_payload;
788 FCOE_V2B_4(0, ffr->ffr_retry_delay_timer);
789 FCOE_V2B_1(0, ffr->ffr_flags);
790 if (task->task_scsi_status == STATUS_CHECK || task->task_resid) {
791 if (task->task_scsi_status == STATUS_CHECK) {
792 ffr->ffr_flags[0] |= BIT_1;
793 }
794 if (task->task_status_ctrl == TASK_SCTRL_OVER) {
795 ffr->ffr_flags[0] |= BIT_2;
796 } else if (task->task_status_ctrl == TASK_SCTRL_UNDER) {
797 ffr->ffr_flags[0] |= BIT_3;
798 }
799 }
800 FCOE_V2B_1(task->task_scsi_status, ffr->ffr_scsi_status);
801 FCOE_V2B_4(task->task_resid, ffr->ffr_resid);
802 FCOE_V2B_4(task->task_sense_length, ffr->ffr_sns_len);
803 FCOE_V2B_4(0, ffr->ffr_rsp_len);
804
805 /*
806 * Fill fc frame header
807 */
808 FFM_R_CTL(0x07, frm);
809 FRM2TFM(frm)->tfm_rctl = 0x07;
810 FFM_TYPE(0x08, frm);
811 FFM_F_CTL(0x990000, frm);
812 FFM_OXID(cmd->cmd_oxid, frm);
813 FFM_RXID(cmd->cmd_rxid, frm);
814 FFM_S_ID(cmd->cmd_lportid, frm);
815 FFM_D_ID(cmd->cmd_rportid, frm);
816 FFM_SEQ_ID(0x01, frm);
817 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
818
819 return (FCT_SUCCESS);
820 }
821
822 static fct_status_t
823 fcoet_send_els_response(fct_cmd_t *cmd)
824 {
825 fcoe_frame_t *frm;
826
827 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
828 CMD2ELS(cmd)->els_resp_size + FCFH_SIZE, NULL);
829 if (frm == NULL) {
830 ASSERT(0);
831 return (FCT_FAILURE);
832 } else {
833 fcoet_init_tfm(frm, CMD2XCH(cmd));
834 bzero(frm->frm_payload, frm->frm_payload_size);
835 /*
836 * lock the xchg to avoid being released (by abort)
837 * after sent out and before release
838 */
839 FCOET_BUSY_XCHG(CMD2XCH(cmd));
840 }
841
842 bcopy(CMD2ELS(cmd)->els_resp_payload, frm->frm_payload,
843 frm->frm_payload_size);
844 FFM_R_CTL(0x23, frm);
845 FRM2TFM(frm)->tfm_rctl = 0x23;
846 FFM_TYPE(0x01, frm);
847 FFM_F_CTL(0x980000, frm);
848 FFM_OXID(cmd->cmd_oxid, frm);
849 FFM_RXID(cmd->cmd_rxid, frm);
850 FFM_S_ID(cmd->cmd_lportid, frm);
851 FFM_D_ID(cmd->cmd_rportid, frm);
852 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
853
854 return (FCT_SUCCESS);
855 }
856
857 /* ARGSUSED */
858 static fct_status_t
859 fcoet_send_abts_response(fct_cmd_t *cmd, uint32_t flags)
860 {
861 fcoe_frame_t *frm;
862 fct_rcvd_abts_t *abts = (fct_rcvd_abts_t *)cmd->cmd_specific;
863
864 /*
865 * The relevant fcoet_exchange has been released
866 */
867 cmd->cmd_fca_private = NULL;
868 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
869 12 + FCFH_SIZE, NULL);
870 if (frm == NULL) {
871 ASSERT(0);
872 return (FCT_FAILURE);
873 } else {
874 fcoet_init_tfm(frm, NULL);
875 }
876
877 bcopy(abts->abts_resp_payload, frm->frm_payload,
878 frm->frm_payload_size);
879 FFM_R_CTL(abts->abts_resp_rctl, frm);
880 FRM2TFM(frm)->tfm_rctl = abts->abts_resp_rctl;
881 FFM_TYPE(0x00, frm);
882 FFM_F_CTL(0x980000, frm);
883 FFM_OXID(cmd->cmd_oxid, frm);
884 FFM_RXID(cmd->cmd_rxid, frm);
885 FFM_S_ID(cmd->cmd_lportid, frm);
886 FFM_D_ID(cmd->cmd_rportid, frm);
887 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
888
889 return (FCT_SUCCESS);
890 }
891
892 /*
893 * enable/disable port is simple compared to physical FC HBAs
894 */
895 fct_status_t
896 fcoet_enable_port(fcoet_soft_state_t *ss)
897 {
898 FCOET_EXT_LOG(ss->ss_alias, "port is being enabled-%p", ss);
899 /* Call fcoe function to online the port */
900 if (ss->ss_eport->eport_ctl(ss->ss_eport, FCOE_CMD_PORT_ONLINE, 0) ==
901 FCOE_FAILURE) {
902 return (FCT_FAILURE);
903 }
904
905 if ((ss->ss_flags & SS_FLAG_PORT_DISABLED) == SS_FLAG_PORT_DISABLED) {
906 atomic_and_32(&ss->ss_flags, ~SS_FLAG_PORT_DISABLED);
907 }
908
909 return (FCT_SUCCESS);
910 }
911
912 fct_status_t
913 fcoet_disable_port(fcoet_soft_state_t *ss)
914 {
915 fct_status_t status;
916
917 FCOET_EXT_LOG(ss->ss_alias, "port is being disabled-%p", ss);
918 /* Call fcoe function to offline the port */
919 status = fcoet_logo_fabric(ss);
920 ss->ss_eport->eport_ctl(ss->ss_eport, FCOE_CMD_PORT_OFFLINE, 0);
921 atomic_or_32(&ss->ss_flags, SS_FLAG_PORT_DISABLED);
922 return (status);
923 }
924
925 static fct_status_t
926 fcoet_logo_fabric(fcoet_soft_state_t *ss)
927 {
928 fcoe_frame_t *frm;
929 uint32_t req_payload_size = 16;
930 uint16_t xch_oxid, xch_rxid = 0xFFFF;
931
932 frm = ss->ss_eport->eport_alloc_frame(ss->ss_eport,
933 req_payload_size + FCFH_SIZE, NULL);
934 if (frm == NULL) {
935 ASSERT(0);
936 return (FCT_FAILURE);
937 } else {
938 fcoet_init_tfm(frm, NULL);
939 bzero(frm->frm_payload, frm->frm_payload_size);
940 }
941 xch_oxid = atomic_inc_16_nv(&ss->ss_next_sol_oxid);
942 if (xch_oxid == 0xFFFF) {
943 xch_oxid = atomic_inc_16_nv(&ss->ss_next_sol_oxid);
944 }
945 FFM_R_CTL(0x22, frm);
946 FRM2TFM(frm)->tfm_rctl = 0x22;
947 FFM_TYPE(0x01, frm);
948 FFM_F_CTL(0x290000, frm);
949 FFM_OXID(xch_oxid, frm);
950 FFM_RXID(xch_rxid, frm);
951 FFM_S_ID(ss->ss_link_info.portid, frm);
952 FFM_D_ID(0xfffffe, frm);
953
954 FCOE_V2B_1(0x5, frm->frm_payload);
955 FCOE_V2B_3(ss->ss_link_info.portid, frm->frm_payload + 5);
956 bcopy(ss->ss_eport->eport_portwwn, frm->frm_payload + 8, 8);
957 ss->ss_eport->eport_tx_frame(frm);
958
959 return (FCT_SUCCESS);
960
961 }
962
963 /*
964 * Called by: fcoet_register_remote_port
965 */
966 /* ARGSUSED */
967 static fct_status_t
968 fcoet_fill_plogi_req(fct_local_port_t *port, fct_remote_port_t *rp,
969 fct_cmd_t *login)
970 {
971 uint8_t *p;
972
973 p = ((fct_els_t *)login->cmd_specific)->els_req_payload;
974 p[0] = ELS_OP_PLOGI;
975 p[4] = 0x20;
976 p[5] = 0x20;
977 p[7] = 3;
978 p[8] = 0x88;
979 p[10] = 8;
980 p[13] = 0xff; p[15] = 0x1f;
981 p[18] = 7; p[19] = 0xd0;
982
983 bcopy(port->port_pwwn, p + 20, 8);
984 bcopy(port->port_nwwn, p + 28, 8);
985
986 p[68] = 0x80;
987 p[74] = 8;
988 p[77] = 0xff;
989 p[81] = 1;
990
991 return (FCT_SUCCESS);
992 }
993
994 /*
995 * Called by: fcoet_register_remote_port
996 */
997 /* ARGSUSED */
998 static fct_status_t
999 fcoet_fill_plogi_resp(fct_local_port_t *port, fct_remote_port_t *rp,
1000 fct_cmd_t *login)
1001 {
1002 uint8_t *p;
1003 /*
1004 * ACC
1005 */
1006 p = ((fct_els_t *)login->cmd_specific)->els_req_payload;
1007 p[0] = ELS_OP_ACC;
1008 p[4] = 0x20;
1009 p[5] = 0x20;
1010 p[7] = 0x0A;
1011 p[10] = 0x05;
1012 p[11] = 0xAC;
1013
1014 bcopy(port->port_pwwn, p + 20, 8);
1015 bcopy(port->port_nwwn, p + 28, 8);
1016
1017 p[68] = 0x88;
1018 return (FCT_SUCCESS);
1019 }
1020
1021 static fct_status_t
1022 fcoet_send_good_status(fct_cmd_t *cmd)
1023 {
1024 fcoe_frame_t *frm;
1025 int raw_frame_size;
1026
1027 raw_frame_size = FCFH_SIZE + sizeof (fcoe_fcp_rsp_t);
1028 frm = CMD2SS(cmd)->ss_eport->eport_alloc_frame(CMD2SS(cmd)->ss_eport,
1029 raw_frame_size, NULL);
1030 if (frm == NULL) {
1031 ASSERT(0);
1032 return (FCT_FAILURE);
1033 } else {
1034 fcoet_init_tfm(frm, CMD2XCH(cmd));
1035 bzero(frm->frm_payload, frm->frm_payload_size);
1036 /*
1037 * lock the xchg to avoid being released (by abort)
1038 * after sent out and before release
1039 */
1040 FCOET_BUSY_XCHG(CMD2XCH(cmd));
1041 }
1042
1043 /*
1044 * Fill fc frame header
1045 */
1046 FFM_R_CTL(0x07, frm);
1047 FRM2TFM(frm)->tfm_rctl = 0x07;
1048 FFM_TYPE(0x08, frm);
1049 FFM_F_CTL(0x990000, frm);
1050 FFM_OXID(cmd->cmd_oxid, frm);
1051 FFM_RXID(cmd->cmd_rxid, frm);
1052 FFM_S_ID(cmd->cmd_lportid, frm);
1053 FFM_D_ID(cmd->cmd_rportid, frm);
1054 FFM_SEQ_ID(0x01, frm);
1055
1056 CMD2SS(cmd)->ss_eport->eport_tx_frame(frm);
1057
1058 return (FCT_SUCCESS);
1059 }