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21#include <scsi/libiscsi.h>
22#include <scsi/scsi_transport_iscsi.h>
23#include <scsi/scsi_transport.h>
24#include <scsi/scsi_cmnd.h>
25#include <scsi/scsi_device.h>
26#include <scsi/scsi_host.h>
27#include <scsi/scsi.h>
28
29#include "be_iscsi.h"
30
31extern struct iscsi_transport beiscsi_iscsi_transport;
32
33
34
35
36
37
38
39struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
40 u16 cmds_max,
41 u16 qdepth,
42 u32 initial_cmdsn)
43{
44 struct Scsi_Host *shost;
45 struct beiscsi_endpoint *beiscsi_ep;
46 struct iscsi_cls_session *cls_session;
47 struct beiscsi_hba *phba;
48 struct iscsi_session *sess;
49 struct beiscsi_session *beiscsi_sess;
50 struct beiscsi_io_task *io_task;
51
52 SE_DEBUG(DBG_LVL_8, "In beiscsi_session_create\n");
53
54 if (!ep) {
55 SE_DEBUG(DBG_LVL_1, "beiscsi_session_create: invalid ep\n");
56 return NULL;
57 }
58 beiscsi_ep = ep->dd_data;
59 phba = beiscsi_ep->phba;
60 shost = phba->shost;
61 if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
62 shost_printk(KERN_ERR, shost, "Cannot handle %d cmds."
63 "Max cmds per session supported is %d. Using %d. "
64 "\n", cmds_max,
65 beiscsi_ep->phba->params.wrbs_per_cxn,
66 beiscsi_ep->phba->params.wrbs_per_cxn);
67 cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
68 }
69
70 cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
71 shost, cmds_max,
72 sizeof(*beiscsi_sess),
73 sizeof(*io_task),
74 initial_cmdsn, ISCSI_MAX_TARGET);
75 if (!cls_session)
76 return NULL;
77 sess = cls_session->dd_data;
78 beiscsi_sess = sess->dd_data;
79 beiscsi_sess->bhs_pool = pci_pool_create("beiscsi_bhs_pool",
80 phba->pcidev,
81 sizeof(struct be_cmd_bhs),
82 64, 0);
83 if (!beiscsi_sess->bhs_pool)
84 goto destroy_sess;
85
86 return cls_session;
87destroy_sess:
88 iscsi_session_teardown(cls_session);
89 return NULL;
90}
91
92
93
94
95
96
97
98
99void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
100{
101 struct iscsi_session *sess = cls_session->dd_data;
102 struct beiscsi_session *beiscsi_sess = sess->dd_data;
103
104 SE_DEBUG(DBG_LVL_8, "In beiscsi_session_destroy\n");
105 pci_pool_destroy(beiscsi_sess->bhs_pool);
106 iscsi_session_teardown(cls_session);
107}
108
109
110
111
112
113
114struct iscsi_cls_conn *
115beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
116{
117 struct beiscsi_hba *phba;
118 struct Scsi_Host *shost;
119 struct iscsi_cls_conn *cls_conn;
120 struct beiscsi_conn *beiscsi_conn;
121 struct iscsi_conn *conn;
122 struct iscsi_session *sess;
123 struct beiscsi_session *beiscsi_sess;
124
125 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_create ,cid"
126 "from iscsi layer=%d\n", cid);
127 shost = iscsi_session_to_shost(cls_session);
128 phba = iscsi_host_priv(shost);
129
130 cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
131 if (!cls_conn)
132 return NULL;
133
134 conn = cls_conn->dd_data;
135 beiscsi_conn = conn->dd_data;
136 beiscsi_conn->ep = NULL;
137 beiscsi_conn->phba = phba;
138 beiscsi_conn->conn = conn;
139 sess = cls_session->dd_data;
140 beiscsi_sess = sess->dd_data;
141 beiscsi_conn->beiscsi_sess = beiscsi_sess;
142 return cls_conn;
143}
144
145
146
147
148
149
150
151static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
152 struct beiscsi_conn *beiscsi_conn,
153 unsigned int cid)
154{
155 if (phba->conn_table[cid]) {
156 SE_DEBUG(DBG_LVL_1,
157 "Connection table already occupied. Detected clash\n");
158 return -EINVAL;
159 } else {
160 SE_DEBUG(DBG_LVL_8, "phba->conn_table[%d]=%p(beiscsi_conn)\n",
161 cid, beiscsi_conn);
162 phba->conn_table[cid] = beiscsi_conn;
163 }
164 return 0;
165}
166
167
168
169
170
171
172
173
174
175int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
176 struct iscsi_cls_conn *cls_conn,
177 u64 transport_fd, int is_leading)
178{
179 struct iscsi_conn *conn = cls_conn->dd_data;
180 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
181 struct Scsi_Host *shost =
182 (struct Scsi_Host *)iscsi_session_to_shost(cls_session);
183 struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
184 struct beiscsi_endpoint *beiscsi_ep;
185 struct iscsi_endpoint *ep;
186
187 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_bind\n");
188 ep = iscsi_lookup_endpoint(transport_fd);
189 if (!ep)
190 return -EINVAL;
191
192 beiscsi_ep = ep->dd_data;
193
194 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
195 return -EINVAL;
196
197 if (beiscsi_ep->phba != phba) {
198 SE_DEBUG(DBG_LVL_8,
199 "beiscsi_ep->hba=%p not equal to phba=%p\n",
200 beiscsi_ep->phba, phba);
201 return -EEXIST;
202 }
203
204 beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
205 beiscsi_conn->ep = beiscsi_ep;
206 beiscsi_ep->conn = beiscsi_conn;
207 SE_DEBUG(DBG_LVL_8, "beiscsi_conn=%p conn=%p ep_cid=%d\n",
208 beiscsi_conn, conn, beiscsi_ep->ep_cid);
209 return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
210}
211
212
213
214
215
216
217
218
219
220int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
221 enum iscsi_param param, char *buf)
222{
223 struct beiscsi_endpoint *beiscsi_ep;
224 struct iscsi_conn *conn = cls_conn->dd_data;
225 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
226 int len = 0;
227
228 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_param, param= %d\n", param);
229 beiscsi_ep = beiscsi_conn->ep;
230 if (!beiscsi_ep) {
231 SE_DEBUG(DBG_LVL_1,
232 "In beiscsi_conn_get_param , no beiscsi_ep\n");
233 return -ENODEV;
234 }
235
236 switch (param) {
237 case ISCSI_PARAM_CONN_PORT:
238 len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
239 break;
240 case ISCSI_PARAM_CONN_ADDRESS:
241 if (beiscsi_ep->ip_type == BE2_IPV4)
242 len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
243 else
244 len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
245 break;
246 default:
247 return iscsi_conn_get_param(cls_conn, param, buf);
248 }
249 return len;
250}
251
252int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
253 enum iscsi_param param, char *buf, int buflen)
254{
255 struct iscsi_conn *conn = cls_conn->dd_data;
256 struct iscsi_session *session = conn->session;
257 int ret;
258
259 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_set_param, param= %d\n", param);
260 ret = iscsi_set_param(cls_conn, param, buf, buflen);
261 if (ret)
262 return ret;
263
264
265
266
267 switch (param) {
268 case ISCSI_PARAM_FIRST_BURST:
269 if (session->first_burst > 8192)
270 session->first_burst = 8192;
271 break;
272 case ISCSI_PARAM_MAX_RECV_DLENGTH:
273 if (conn->max_recv_dlength > 65536)
274 conn->max_recv_dlength = 65536;
275 break;
276 case ISCSI_PARAM_MAX_BURST:
277 if (session->max_burst > 262144)
278 session->max_burst = 262144;
279 break;
280 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
281 if ((conn->max_xmit_dlength > 65536) ||
282 (conn->max_xmit_dlength == 0))
283 conn->max_xmit_dlength = 65536;
284 default:
285 return 0;
286 }
287
288 return 0;
289}
290
291
292
293
294
295
296
297
298
299int beiscsi_get_host_param(struct Scsi_Host *shost,
300 enum iscsi_host_param param, char *buf)
301{
302 struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
303 int status = 0;
304
305 SE_DEBUG(DBG_LVL_8, "In beiscsi_get_host_param, param= %d\n", param);
306 switch (param) {
307 case ISCSI_HOST_PARAM_HWADDRESS:
308 status = beiscsi_get_macaddr(buf, phba);
309 if (status < 0) {
310 SE_DEBUG(DBG_LVL_1, "beiscsi_get_macaddr Failed\n");
311 return status;
312 }
313 break;
314 default:
315 return iscsi_host_get_param(shost, param, buf);
316 }
317 return status;
318}
319
320int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
321{
322 struct be_cmd_resp_get_mac_addr *resp;
323 struct be_mcc_wrb *wrb;
324 unsigned int tag, wrb_num;
325 unsigned short status, extd_status;
326 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
327 int rc;
328
329 if (phba->read_mac_address)
330 return sysfs_format_mac(buf, phba->mac_address,
331 ETH_ALEN);
332
333 tag = be_cmd_get_mac_addr(phba);
334 if (!tag) {
335 SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed\n");
336 return -EBUSY;
337 } else
338 wait_event_interruptible(phba->ctrl.mcc_wait[tag],
339 phba->ctrl.mcc_numtag[tag]);
340
341 wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
342 extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
343 status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
344 if (status || extd_status) {
345 SE_DEBUG(DBG_LVL_1, "Failed to get be_cmd_get_mac_addr"
346 " status = %d extd_status = %d\n",
347 status, extd_status);
348 free_mcc_tag(&phba->ctrl, tag);
349 return -EAGAIN;
350 }
351 wrb = queue_get_wrb(mccq, wrb_num);
352 free_mcc_tag(&phba->ctrl, tag);
353 resp = embedded_payload(wrb);
354 memcpy(phba->mac_address, resp->mac_address, ETH_ALEN);
355 rc = sysfs_format_mac(buf, phba->mac_address,
356 ETH_ALEN);
357 phba->read_mac_address = 1;
358 return rc;
359}
360
361
362
363
364
365
366
367
368
369void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
370 struct iscsi_stats *stats)
371{
372 struct iscsi_conn *conn = cls_conn->dd_data;
373
374 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_stats\n");
375 stats->txdata_octets = conn->txdata_octets;
376 stats->rxdata_octets = conn->rxdata_octets;
377 stats->dataout_pdus = conn->dataout_pdus_cnt;
378 stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
379 stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
380 stats->datain_pdus = conn->datain_pdus_cnt;
381 stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
382 stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
383 stats->r2t_pdus = conn->r2t_pdus_cnt;
384 stats->digest_err = 0;
385 stats->timeout_err = 0;
386 stats->custom_length = 0;
387 strcpy(stats->custom[0].desc, "eh_abort_cnt");
388 stats->custom[0].value = conn->eh_abort_cnt;
389}
390
391
392
393
394
395
396static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
397 struct beiscsi_offload_params *params)
398{
399 struct iscsi_conn *conn = beiscsi_conn->conn;
400 struct iscsi_session *session = conn->session;
401
402 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
403 params, session->max_burst);
404 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
405 max_send_data_segment_length, params,
406 conn->max_xmit_dlength);
407 AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
408 params, session->first_burst);
409 AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
410 session->erl);
411 AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
412 conn->datadgst_en);
413 AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
414 conn->hdrdgst_en);
415 AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
416 session->initial_r2t_en);
417 AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
418 session->imm_data_en);
419 AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
420 (conn->exp_statsn - 1));
421}
422
423
424
425
426
427int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
428{
429 struct iscsi_conn *conn = cls_conn->dd_data;
430 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
431 struct beiscsi_endpoint *beiscsi_ep;
432 struct beiscsi_offload_params params;
433
434 SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_start\n");
435 memset(¶ms, 0, sizeof(struct beiscsi_offload_params));
436 beiscsi_ep = beiscsi_conn->ep;
437 if (!beiscsi_ep)
438 SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n");
439
440 beiscsi_conn->login_in_progress = 0;
441 beiscsi_set_params_for_offld(beiscsi_conn, ¶ms);
442 beiscsi_offload_connection(beiscsi_conn, ¶ms);
443 iscsi_conn_start(cls_conn);
444 return 0;
445}
446
447
448
449
450
451static int beiscsi_get_cid(struct beiscsi_hba *phba)
452{
453 unsigned short cid = 0xFFFF;
454
455 if (!phba->avlbl_cids)
456 return cid;
457
458 cid = phba->cid_array[phba->cid_alloc++];
459 if (phba->cid_alloc == phba->params.cxns_per_ctrl)
460 phba->cid_alloc = 0;
461 phba->avlbl_cids--;
462 return cid;
463}
464
465
466
467
468
469
470static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
471{
472 phba->avlbl_cids++;
473 phba->cid_array[phba->cid_free++] = cid;
474 if (phba->cid_free == phba->params.cxns_per_ctrl)
475 phba->cid_free = 0;
476}
477
478
479
480
481
482static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
483{
484 struct beiscsi_hba *phba = beiscsi_ep->phba;
485
486 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
487 beiscsi_ep->phba = NULL;
488}
489
490
491
492
493
494
495
496
497
498static int beiscsi_open_conn(struct iscsi_endpoint *ep,
499 struct sockaddr *src_addr,
500 struct sockaddr *dst_addr, int non_blocking)
501{
502 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
503 struct beiscsi_hba *phba = beiscsi_ep->phba;
504 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
505 struct be_mcc_wrb *wrb;
506 struct tcp_connect_and_offload_out *ptcpcnct_out;
507 unsigned short status, extd_status;
508 struct be_dma_mem nonemb_cmd;
509 unsigned int tag, wrb_num;
510 int ret = -ENOMEM;
511
512 SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn\n");
513 beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
514 if (beiscsi_ep->ep_cid == 0xFFFF) {
515 SE_DEBUG(DBG_LVL_1, "No free cid available\n");
516 return ret;
517 }
518 SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn, ep_cid=%d\n",
519 beiscsi_ep->ep_cid);
520 phba->ep_array[beiscsi_ep->ep_cid -
521 phba->fw_config.iscsi_cid_start] = ep;
522 if (beiscsi_ep->ep_cid > (phba->fw_config.iscsi_cid_start +
523 phba->params.cxns_per_ctrl * 2)) {
524 SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
525 goto free_ep;
526 }
527
528 beiscsi_ep->cid_vld = 0;
529 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
530 sizeof(struct tcp_connect_and_offload_in),
531 &nonemb_cmd.dma);
532 if (nonemb_cmd.va == NULL) {
533 SE_DEBUG(DBG_LVL_1,
534 "Failed to allocate memory for mgmt_open_connection"
535 "\n");
536 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
537 return -ENOMEM;
538 }
539 nonemb_cmd.size = sizeof(struct tcp_connect_and_offload_in);
540 memset(nonemb_cmd.va, 0, nonemb_cmd.size);
541 tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
542 if (!tag) {
543 SE_DEBUG(DBG_LVL_1,
544 "mgmt_open_connection Failed for cid=%d\n",
545 beiscsi_ep->ep_cid);
546 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
547 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
548 nonemb_cmd.va, nonemb_cmd.dma);
549 return -EAGAIN;
550 } else {
551 wait_event_interruptible(phba->ctrl.mcc_wait[tag],
552 phba->ctrl.mcc_numtag[tag]);
553 }
554 wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
555 extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
556 status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
557 if (status || extd_status) {
558 SE_DEBUG(DBG_LVL_1, "mgmt_open_connection Failed"
559 " status = %d extd_status = %d\n",
560 status, extd_status);
561 free_mcc_tag(&phba->ctrl, tag);
562 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
563 nonemb_cmd.va, nonemb_cmd.dma);
564 goto free_ep;
565 } else {
566 wrb = queue_get_wrb(mccq, wrb_num);
567 free_mcc_tag(&phba->ctrl, tag);
568
569 ptcpcnct_out = embedded_payload(wrb);
570 beiscsi_ep = ep->dd_data;
571 beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
572 beiscsi_ep->cid_vld = 1;
573 SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n");
574 }
575 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
576 nonemb_cmd.va, nonemb_cmd.dma);
577 return 0;
578
579free_ep:
580 beiscsi_free_ep(beiscsi_ep);
581 return -EBUSY;
582}
583
584
585
586
587
588
589
590
591
592struct iscsi_endpoint *
593beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
594 int non_blocking)
595{
596 struct beiscsi_hba *phba;
597 struct beiscsi_endpoint *beiscsi_ep;
598 struct iscsi_endpoint *ep;
599 int ret;
600
601 SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_connect\n");
602 if (shost)
603 phba = iscsi_host_priv(shost);
604 else {
605 ret = -ENXIO;
606 SE_DEBUG(DBG_LVL_1, "shost is NULL\n");
607 return ERR_PTR(ret);
608 }
609
610 if (phba->state != BE_ADAPTER_UP) {
611 ret = -EBUSY;
612 SE_DEBUG(DBG_LVL_1, "The Adapter state is Not UP\n");
613 return ERR_PTR(ret);
614 }
615
616 ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
617 if (!ep) {
618 ret = -ENOMEM;
619 return ERR_PTR(ret);
620 }
621
622 beiscsi_ep = ep->dd_data;
623 beiscsi_ep->phba = phba;
624 beiscsi_ep->openiscsi_ep = ep;
625 ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
626 if (ret) {
627 SE_DEBUG(DBG_LVL_1, "Failed in beiscsi_open_conn\n");
628 goto free_ep;
629 }
630
631 return ep;
632
633free_ep:
634 iscsi_destroy_endpoint(ep);
635 return ERR_PTR(ret);
636}
637
638
639
640
641
642
643
644
645int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
646{
647 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
648
649 SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_poll\n");
650 if (beiscsi_ep->cid_vld == 1)
651 return 1;
652 else
653 return 0;
654}
655
656
657
658
659
660
661static int beiscsi_close_conn(struct beiscsi_endpoint *beiscsi_ep, int flag)
662{
663 int ret = 0;
664 unsigned int tag;
665 struct beiscsi_hba *phba = beiscsi_ep->phba;
666
667 tag = mgmt_upload_connection(phba, beiscsi_ep->ep_cid, flag);
668 if (!tag) {
669 SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x\n",
670 beiscsi_ep->ep_cid);
671 ret = -EAGAIN;
672 } else {
673 wait_event_interruptible(phba->ctrl.mcc_wait[tag],
674 phba->ctrl.mcc_numtag[tag]);
675 free_mcc_tag(&phba->ctrl, tag);
676 }
677 return ret;
678}
679
680
681
682
683
684
685static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
686 unsigned int cid)
687{
688 if (phba->conn_table[cid])
689 phba->conn_table[cid] = NULL;
690 else {
691 SE_DEBUG(DBG_LVL_8, "Connection table Not occupied.\n");
692 return -EINVAL;
693 }
694 return 0;
695}
696
697
698
699
700
701
702
703void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
704{
705 struct beiscsi_conn *beiscsi_conn;
706 struct beiscsi_endpoint *beiscsi_ep;
707 struct beiscsi_hba *phba;
708 unsigned int tag;
709 unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
710
711 beiscsi_ep = ep->dd_data;
712 phba = beiscsi_ep->phba;
713 SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect for ep_cid = %d\n",
714 beiscsi_ep->ep_cid);
715
716 if (!beiscsi_ep->conn) {
717 SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect, no "
718 "beiscsi_ep\n");
719 return;
720 }
721 beiscsi_conn = beiscsi_ep->conn;
722 iscsi_suspend_queue(beiscsi_conn->conn);
723
724 SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect ep_cid = %d\n",
725 beiscsi_ep->ep_cid);
726
727 tag = mgmt_invalidate_connection(phba, beiscsi_ep,
728 beiscsi_ep->ep_cid, 1,
729 savecfg_flag);
730 if (!tag) {
731 SE_DEBUG(DBG_LVL_1,
732 "mgmt_invalidate_connection Failed for cid=%d\n",
733 beiscsi_ep->ep_cid);
734 } else {
735 wait_event_interruptible(phba->ctrl.mcc_wait[tag],
736 phba->ctrl.mcc_numtag[tag]);
737 free_mcc_tag(&phba->ctrl, tag);
738 }
739
740 beiscsi_close_conn(beiscsi_ep, CONNECTION_UPLOAD_GRACEFUL);
741 beiscsi_free_ep(beiscsi_ep);
742 beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
743 iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
744}
745
