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14#include <scsi/libiscsi.h>
15#include <scsi/scsi_transport_iscsi.h>
16#include <scsi/scsi_transport.h>
17#include <scsi/scsi_cmnd.h>
18#include <scsi/scsi_device.h>
19#include <scsi/scsi_host.h>
20#include <scsi/scsi_netlink.h>
21#include <net/netlink.h>
22#include <scsi/scsi.h>
23
24#include "be_iscsi.h"
25
26extern struct iscsi_transport beiscsi_iscsi_transport;
27
28
29
30
31
32
33
34struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
35 u16 cmds_max,
36 u16 qdepth,
37 u32 initial_cmdsn)
38{
39 struct Scsi_Host *shost;
40 struct beiscsi_endpoint *beiscsi_ep;
41 struct iscsi_cls_session *cls_session;
42 struct beiscsi_hba *phba;
43 struct iscsi_session *sess;
44 struct beiscsi_session *beiscsi_sess;
45 struct beiscsi_io_task *io_task;
46
47
48 if (!ep) {
49 pr_err("beiscsi_session_create: invalid ep\n");
50 return NULL;
51 }
52 beiscsi_ep = ep->dd_data;
53 phba = beiscsi_ep->phba;
54
55 if (!beiscsi_hba_is_online(phba)) {
56 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
57 "BS_%d : HBA in error 0x%lx\n", phba->state);
58 return NULL;
59 }
60
61 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
62 "BS_%d : In beiscsi_session_create\n");
63 if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
64 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
65 "BS_%d : Cannot handle %d cmds."
66 "Max cmds per session supported is %d. Using %d."
67 "\n", cmds_max,
68 beiscsi_ep->phba->params.wrbs_per_cxn,
69 beiscsi_ep->phba->params.wrbs_per_cxn);
70
71 cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
72 }
73
74 shost = phba->shost;
75 cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
76 shost, cmds_max,
77 sizeof(*beiscsi_sess),
78 sizeof(*io_task),
79 initial_cmdsn, ISCSI_MAX_TARGET);
80 if (!cls_session)
81 return NULL;
82 sess = cls_session->dd_data;
83 beiscsi_sess = sess->dd_data;
84 beiscsi_sess->bhs_pool = dma_pool_create("beiscsi_bhs_pool",
85 &phba->pcidev->dev,
86 sizeof(struct be_cmd_bhs),
87 64, 0);
88 if (!beiscsi_sess->bhs_pool)
89 goto destroy_sess;
90
91 return cls_session;
92destroy_sess:
93 iscsi_session_teardown(cls_session);
94 return NULL;
95}
96
97
98
99
100
101
102
103
104void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
105{
106 struct iscsi_session *sess = cls_session->dd_data;
107 struct beiscsi_session *beiscsi_sess = sess->dd_data;
108
109 printk(KERN_INFO "In beiscsi_session_destroy\n");
110 dma_pool_destroy(beiscsi_sess->bhs_pool);
111 iscsi_session_teardown(cls_session);
112}
113
114
115
116
117
118void beiscsi_session_fail(struct iscsi_cls_session *cls_session)
119{
120 iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
121}
122
123
124
125
126
127
128
129struct iscsi_cls_conn *
130beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
131{
132 struct beiscsi_hba *phba;
133 struct Scsi_Host *shost;
134 struct iscsi_cls_conn *cls_conn;
135 struct beiscsi_conn *beiscsi_conn;
136 struct iscsi_conn *conn;
137 struct iscsi_session *sess;
138 struct beiscsi_session *beiscsi_sess;
139
140 shost = iscsi_session_to_shost(cls_session);
141 phba = iscsi_host_priv(shost);
142
143 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
144 "BS_%d : In beiscsi_conn_create ,cid"
145 "from iscsi layer=%d\n", cid);
146
147 cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
148 if (!cls_conn)
149 return NULL;
150
151 conn = cls_conn->dd_data;
152 beiscsi_conn = conn->dd_data;
153 beiscsi_conn->ep = NULL;
154 beiscsi_conn->phba = phba;
155 beiscsi_conn->conn = conn;
156 sess = cls_session->dd_data;
157 beiscsi_sess = sess->dd_data;
158 beiscsi_conn->beiscsi_sess = beiscsi_sess;
159 return cls_conn;
160}
161
162
163
164
165
166
167
168
169
170int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
171 struct iscsi_cls_conn *cls_conn,
172 u64 transport_fd, int is_leading)
173{
174 struct iscsi_conn *conn = cls_conn->dd_data;
175 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
176 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
177 struct beiscsi_hba *phba = iscsi_host_priv(shost);
178 struct hwi_controller *phwi_ctrlr = phba->phwi_ctrlr;
179 struct hwi_wrb_context *pwrb_context;
180 struct beiscsi_endpoint *beiscsi_ep;
181 struct iscsi_endpoint *ep;
182 uint16_t cri_index;
183
184 ep = iscsi_lookup_endpoint(transport_fd);
185 if (!ep)
186 return -EINVAL;
187
188 beiscsi_ep = ep->dd_data;
189
190 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
191 return -EINVAL;
192
193 if (beiscsi_ep->phba != phba) {
194 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
195 "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
196 beiscsi_ep->phba, phba);
197
198 return -EEXIST;
199 }
200 cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
201 if (phba->conn_table[cri_index]) {
202 if (beiscsi_conn != phba->conn_table[cri_index] ||
203 beiscsi_ep != phba->conn_table[cri_index]->ep) {
204 __beiscsi_log(phba, KERN_ERR,
205 "BS_%d : conn_table not empty at %u: cid %u conn %p:%p\n",
206 cri_index,
207 beiscsi_ep->ep_cid,
208 beiscsi_conn,
209 phba->conn_table[cri_index]);
210 return -EINVAL;
211 }
212 }
213
214 beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
215 beiscsi_conn->ep = beiscsi_ep;
216 beiscsi_ep->conn = beiscsi_conn;
217
218
219
220
221 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
222 beiscsi_conn->doorbell_offset = pwrb_context->doorbell_offset;
223 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
224 "BS_%d : cid %d phba->conn_table[%u]=%p\n",
225 beiscsi_ep->ep_cid, cri_index, beiscsi_conn);
226 phba->conn_table[cri_index] = beiscsi_conn;
227 return 0;
228}
229
230static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
231{
232 if (phba->ipv4_iface)
233 return 0;
234
235 phba->ipv4_iface = iscsi_create_iface(phba->shost,
236 &beiscsi_iscsi_transport,
237 ISCSI_IFACE_TYPE_IPV4,
238 0, 0);
239 if (!phba->ipv4_iface) {
240 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
241 "BS_%d : Could not "
242 "create default IPv4 address.\n");
243 return -ENODEV;
244 }
245
246 return 0;
247}
248
249static int beiscsi_iface_create_ipv6(struct beiscsi_hba *phba)
250{
251 if (phba->ipv6_iface)
252 return 0;
253
254 phba->ipv6_iface = iscsi_create_iface(phba->shost,
255 &beiscsi_iscsi_transport,
256 ISCSI_IFACE_TYPE_IPV6,
257 0, 0);
258 if (!phba->ipv6_iface) {
259 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
260 "BS_%d : Could not "
261 "create default IPv6 address.\n");
262 return -ENODEV;
263 }
264
265 return 0;
266}
267
268void beiscsi_iface_create_default(struct beiscsi_hba *phba)
269{
270 struct be_cmd_get_if_info_resp *if_info;
271
272 if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V4, &if_info)) {
273 beiscsi_iface_create_ipv4(phba);
274 kfree(if_info);
275 }
276
277 if (!beiscsi_if_get_info(phba, BEISCSI_IP_TYPE_V6, &if_info)) {
278 beiscsi_iface_create_ipv6(phba);
279 kfree(if_info);
280 }
281}
282
283void beiscsi_iface_destroy_default(struct beiscsi_hba *phba)
284{
285 if (phba->ipv6_iface) {
286 iscsi_destroy_iface(phba->ipv6_iface);
287 phba->ipv6_iface = NULL;
288 }
289 if (phba->ipv4_iface) {
290 iscsi_destroy_iface(phba->ipv4_iface);
291 phba->ipv4_iface = NULL;
292 }
293}
294
295
296
297
298
299
300
301
302
303
304
305
306
307static int
308beiscsi_iface_config_vlan(struct Scsi_Host *shost,
309 struct iscsi_iface_param_info *iface_param)
310{
311 struct beiscsi_hba *phba = iscsi_host_priv(shost);
312 int ret = -EPERM;
313
314 switch (iface_param->param) {
315 case ISCSI_NET_PARAM_VLAN_ENABLED:
316 ret = 0;
317 if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
318 ret = beiscsi_if_set_vlan(phba, BEISCSI_VLAN_DISABLE);
319 break;
320 case ISCSI_NET_PARAM_VLAN_TAG:
321 ret = beiscsi_if_set_vlan(phba,
322 *((uint16_t *)iface_param->value));
323 break;
324 }
325 return ret;
326}
327
328
329static int
330beiscsi_iface_config_ipv4(struct Scsi_Host *shost,
331 struct iscsi_iface_param_info *info,
332 void *data, uint32_t dt_len)
333{
334 struct beiscsi_hba *phba = iscsi_host_priv(shost);
335 u8 *ip = NULL, *subnet = NULL, *gw;
336 struct nlattr *nla;
337 int ret = -EPERM;
338
339
340 switch (info->param) {
341 case ISCSI_NET_PARAM_IFACE_ENABLE:
342 if (info->value[0] == ISCSI_IFACE_ENABLE)
343 ret = beiscsi_iface_create_ipv4(phba);
344 else {
345 iscsi_destroy_iface(phba->ipv4_iface);
346 phba->ipv4_iface = NULL;
347 }
348 break;
349 case ISCSI_NET_PARAM_IPV4_GW:
350 gw = info->value;
351 ret = beiscsi_if_set_gw(phba, BEISCSI_IP_TYPE_V4, gw);
352 break;
353 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
354 if (info->value[0] == ISCSI_BOOTPROTO_DHCP)
355 ret = beiscsi_if_en_dhcp(phba, BEISCSI_IP_TYPE_V4);
356 else if (info->value[0] == ISCSI_BOOTPROTO_STATIC)
357
358 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
359 NULL, NULL);
360 else
361 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
362 "BS_%d : Invalid BOOTPROTO: %d\n",
363 info->value[0]);
364 break;
365 case ISCSI_NET_PARAM_IPV4_ADDR:
366 ip = info->value;
367 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
368 if (nla) {
369 info = nla_data(nla);
370 subnet = info->value;
371 }
372 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
373 ip, subnet);
374 break;
375 case ISCSI_NET_PARAM_IPV4_SUBNET:
376
377
378
379
380 subnet = info->value;
381 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
382 if (nla) {
383 info = nla_data(nla);
384 ip = info->value;
385 }
386 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V4,
387 ip, subnet);
388 break;
389 }
390
391 return ret;
392}
393
394static int
395beiscsi_iface_config_ipv6(struct Scsi_Host *shost,
396 struct iscsi_iface_param_info *iface_param,
397 void *data, uint32_t dt_len)
398{
399 struct beiscsi_hba *phba = iscsi_host_priv(shost);
400 int ret = -EPERM;
401
402 switch (iface_param->param) {
403 case ISCSI_NET_PARAM_IFACE_ENABLE:
404 if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
405 ret = beiscsi_iface_create_ipv6(phba);
406 else {
407 iscsi_destroy_iface(phba->ipv6_iface);
408 phba->ipv6_iface = NULL;
409 }
410 break;
411 case ISCSI_NET_PARAM_IPV6_ADDR:
412 ret = beiscsi_if_en_static(phba, BEISCSI_IP_TYPE_V6,
413 iface_param->value, NULL);
414 break;
415 }
416
417 return ret;
418}
419
420int beiscsi_iface_set_param(struct Scsi_Host *shost,
421 void *data, uint32_t dt_len)
422{
423 struct iscsi_iface_param_info *iface_param = NULL;
424 struct beiscsi_hba *phba = iscsi_host_priv(shost);
425 struct nlattr *attrib;
426 uint32_t rm_len = dt_len;
427 int ret;
428
429 if (!beiscsi_hba_is_online(phba)) {
430 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
431 "BS_%d : HBA in error 0x%lx\n", phba->state);
432 return -EBUSY;
433 }
434
435
436 ret = beiscsi_if_get_handle(phba);
437 if (ret) {
438 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
439 "BS_%d : Getting Interface Handle Failed\n");
440 return ret;
441 }
442
443 nla_for_each_attr(attrib, data, dt_len, rm_len) {
444 iface_param = nla_data(attrib);
445
446 if (iface_param->param_type != ISCSI_NET_PARAM)
447 continue;
448
449
450
451
452 if (iface_param->iface_num) {
453 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
454 "BS_%d : Invalid iface_num %d."
455 "Only iface_num 0 is supported.\n",
456 iface_param->iface_num);
457
458 return -EINVAL;
459 }
460
461 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
462 "BS_%d : %s.0 set param %d",
463 (iface_param->iface_type == ISCSI_IFACE_TYPE_IPV4) ?
464 "ipv4" : "ipv6", iface_param->param);
465
466 ret = -EPERM;
467 switch (iface_param->param) {
468 case ISCSI_NET_PARAM_VLAN_ENABLED:
469 case ISCSI_NET_PARAM_VLAN_TAG:
470 ret = beiscsi_iface_config_vlan(shost, iface_param);
471 break;
472 default:
473 switch (iface_param->iface_type) {
474 case ISCSI_IFACE_TYPE_IPV4:
475 ret = beiscsi_iface_config_ipv4(shost,
476 iface_param,
477 data, dt_len);
478 break;
479 case ISCSI_IFACE_TYPE_IPV6:
480 ret = beiscsi_iface_config_ipv6(shost,
481 iface_param,
482 data, dt_len);
483 break;
484 }
485 }
486
487 if (ret == -EPERM) {
488 __beiscsi_log(phba, KERN_ERR,
489 "BS_%d : %s.0 set param %d not permitted",
490 (iface_param->iface_type ==
491 ISCSI_IFACE_TYPE_IPV4) ? "ipv4" : "ipv6",
492 iface_param->param);
493 ret = 0;
494 }
495 if (ret)
496 break;
497 }
498
499 return ret;
500}
501
502static int __beiscsi_iface_get_param(struct beiscsi_hba *phba,
503 struct iscsi_iface *iface,
504 int param, char *buf)
505{
506 struct be_cmd_get_if_info_resp *if_info;
507 int len, ip_type = BEISCSI_IP_TYPE_V4;
508
509 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
510 ip_type = BEISCSI_IP_TYPE_V6;
511
512 len = beiscsi_if_get_info(phba, ip_type, &if_info);
513 if (len)
514 return len;
515
516 switch (param) {
517 case ISCSI_NET_PARAM_IPV4_ADDR:
518 len = sprintf(buf, "%pI4\n", if_info->ip_addr.addr);
519 break;
520 case ISCSI_NET_PARAM_IPV6_ADDR:
521 len = sprintf(buf, "%pI6\n", if_info->ip_addr.addr);
522 break;
523 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
524 if (!if_info->dhcp_state)
525 len = sprintf(buf, "static\n");
526 else
527 len = sprintf(buf, "dhcp\n");
528 break;
529 case ISCSI_NET_PARAM_IPV4_SUBNET:
530 len = sprintf(buf, "%pI4\n", if_info->ip_addr.subnet_mask);
531 break;
532 case ISCSI_NET_PARAM_VLAN_ENABLED:
533 len = sprintf(buf, "%s\n",
534 (if_info->vlan_priority == BEISCSI_VLAN_DISABLE) ?
535 "disable" : "enable");
536 break;
537 case ISCSI_NET_PARAM_VLAN_ID:
538 if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
539 len = -EINVAL;
540 else
541 len = sprintf(buf, "%d\n",
542 (if_info->vlan_priority &
543 ISCSI_MAX_VLAN_ID));
544 break;
545 case ISCSI_NET_PARAM_VLAN_PRIORITY:
546 if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
547 len = -EINVAL;
548 else
549 len = sprintf(buf, "%d\n",
550 ((if_info->vlan_priority >> 13) &
551 ISCSI_MAX_VLAN_PRIORITY));
552 break;
553 default:
554 WARN_ON(1);
555 }
556
557 kfree(if_info);
558 return len;
559}
560
561int beiscsi_iface_get_param(struct iscsi_iface *iface,
562 enum iscsi_param_type param_type,
563 int param, char *buf)
564{
565 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
566 struct beiscsi_hba *phba = iscsi_host_priv(shost);
567 struct be_cmd_get_def_gateway_resp gateway;
568 int len = -EPERM;
569
570 if (param_type != ISCSI_NET_PARAM)
571 return 0;
572 if (!beiscsi_hba_is_online(phba)) {
573 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
574 "BS_%d : HBA in error 0x%lx\n", phba->state);
575 return -EBUSY;
576 }
577
578 switch (param) {
579 case ISCSI_NET_PARAM_IPV4_ADDR:
580 case ISCSI_NET_PARAM_IPV4_SUBNET:
581 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
582 case ISCSI_NET_PARAM_IPV6_ADDR:
583 case ISCSI_NET_PARAM_VLAN_ENABLED:
584 case ISCSI_NET_PARAM_VLAN_ID:
585 case ISCSI_NET_PARAM_VLAN_PRIORITY:
586 len = __beiscsi_iface_get_param(phba, iface, param, buf);
587 break;
588 case ISCSI_NET_PARAM_IFACE_ENABLE:
589 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
590 len = sprintf(buf, "%s\n",
591 phba->ipv4_iface ? "enable" : "disable");
592 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
593 len = sprintf(buf, "%s\n",
594 phba->ipv6_iface ? "enable" : "disable");
595 break;
596 case ISCSI_NET_PARAM_IPV4_GW:
597 memset(&gateway, 0, sizeof(gateway));
598 len = beiscsi_if_get_gw(phba, BEISCSI_IP_TYPE_V4, &gateway);
599 if (!len)
600 len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr);
601 break;
602 }
603
604 return len;
605}
606
607
608
609
610
611
612
613
614
615int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
616 enum iscsi_param param, char *buf)
617{
618 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
619 int len;
620
621 beiscsi_log(beiscsi_ep->phba, KERN_INFO,
622 BEISCSI_LOG_CONFIG,
623 "BS_%d : In beiscsi_ep_get_param,"
624 " param= %d\n", param);
625
626 switch (param) {
627 case ISCSI_PARAM_CONN_PORT:
628 len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
629 break;
630 case ISCSI_PARAM_CONN_ADDRESS:
631 if (beiscsi_ep->ip_type == BEISCSI_IP_TYPE_V4)
632 len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
633 else
634 len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
635 break;
636 default:
637 len = -EPERM;
638 }
639 return len;
640}
641
642int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
643 enum iscsi_param param, char *buf, int buflen)
644{
645 struct iscsi_conn *conn = cls_conn->dd_data;
646 struct iscsi_session *session = conn->session;
647 struct beiscsi_hba *phba = NULL;
648 int ret;
649
650 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
651 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
652 "BS_%d : In beiscsi_conn_set_param,"
653 " param= %d\n", param);
654
655 ret = iscsi_set_param(cls_conn, param, buf, buflen);
656 if (ret)
657 return ret;
658
659
660
661
662 switch (param) {
663 case ISCSI_PARAM_FIRST_BURST:
664 if (session->first_burst > 8192)
665 session->first_burst = 8192;
666 break;
667 case ISCSI_PARAM_MAX_RECV_DLENGTH:
668 if (conn->max_recv_dlength > 65536)
669 conn->max_recv_dlength = 65536;
670 break;
671 case ISCSI_PARAM_MAX_BURST:
672 if (session->max_burst > 262144)
673 session->max_burst = 262144;
674 break;
675 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
676 if (conn->max_xmit_dlength > 65536)
677 conn->max_xmit_dlength = 65536;
678
679 default:
680 return 0;
681 }
682
683 return 0;
684}
685
686
687
688
689
690
691static void beiscsi_get_port_state(struct Scsi_Host *shost)
692{
693 struct beiscsi_hba *phba = iscsi_host_priv(shost);
694 struct iscsi_cls_host *ihost = shost->shost_data;
695
696 ihost->port_state = test_bit(BEISCSI_HBA_LINK_UP, &phba->state) ?
697 ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
698}
699
700
701
702
703
704
705static void beiscsi_get_port_speed(struct Scsi_Host *shost)
706{
707 struct beiscsi_hba *phba = iscsi_host_priv(shost);
708 struct iscsi_cls_host *ihost = shost->shost_data;
709
710 switch (phba->port_speed) {
711 case BE2ISCSI_LINK_SPEED_10MBPS:
712 ihost->port_speed = ISCSI_PORT_SPEED_10MBPS;
713 break;
714 case BE2ISCSI_LINK_SPEED_100MBPS:
715 ihost->port_speed = ISCSI_PORT_SPEED_100MBPS;
716 break;
717 case BE2ISCSI_LINK_SPEED_1GBPS:
718 ihost->port_speed = ISCSI_PORT_SPEED_1GBPS;
719 break;
720 case BE2ISCSI_LINK_SPEED_10GBPS:
721 ihost->port_speed = ISCSI_PORT_SPEED_10GBPS;
722 break;
723 case BE2ISCSI_LINK_SPEED_25GBPS:
724 ihost->port_speed = ISCSI_PORT_SPEED_25GBPS;
725 break;
726 case BE2ISCSI_LINK_SPEED_40GBPS:
727 ihost->port_speed = ISCSI_PORT_SPEED_40GBPS;
728 break;
729 default:
730 ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN;
731 }
732}
733
734
735
736
737
738
739
740
741int beiscsi_get_host_param(struct Scsi_Host *shost,
742 enum iscsi_host_param param, char *buf)
743{
744 struct beiscsi_hba *phba = iscsi_host_priv(shost);
745 int status = 0;
746
747 if (!beiscsi_hba_is_online(phba)) {
748 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
749 "BS_%d : HBA in error 0x%lx\n", phba->state);
750 return 0;
751 }
752 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
753 "BS_%d : In beiscsi_get_host_param, param = %d\n", param);
754
755 switch (param) {
756 case ISCSI_HOST_PARAM_HWADDRESS:
757 status = beiscsi_get_macaddr(buf, phba);
758 if (status < 0) {
759 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
760 "BS_%d : beiscsi_get_macaddr Failed\n");
761 return 0;
762 }
763 break;
764 case ISCSI_HOST_PARAM_INITIATOR_NAME:
765
766 status = beiscsi_get_initiator_name(phba, buf, true);
767 if (status < 0) {
768 status = beiscsi_get_initiator_name(phba, buf, false);
769 if (status < 0) {
770 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
771 "BS_%d : Retrieving Initiator Name Failed\n");
772 status = 0;
773 }
774 }
775 break;
776 case ISCSI_HOST_PARAM_PORT_STATE:
777 beiscsi_get_port_state(shost);
778 status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
779 break;
780 case ISCSI_HOST_PARAM_PORT_SPEED:
781 beiscsi_get_port_speed(shost);
782 status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
783 break;
784 default:
785 return iscsi_host_get_param(shost, param, buf);
786 }
787 return status;
788}
789
790int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
791{
792 struct be_cmd_get_nic_conf_resp resp;
793 int rc;
794
795 if (phba->mac_addr_set)
796 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
797
798 memset(&resp, 0, sizeof(resp));
799 rc = mgmt_get_nic_conf(phba, &resp);
800 if (rc)
801 return rc;
802
803 phba->mac_addr_set = true;
804 memcpy(phba->mac_address, resp.mac_address, ETH_ALEN);
805 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
806}
807
808
809
810
811
812
813
814
815void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
816 struct iscsi_stats *stats)
817{
818 struct iscsi_conn *conn = cls_conn->dd_data;
819 struct beiscsi_hba *phba = NULL;
820
821 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
822 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
823 "BS_%d : In beiscsi_conn_get_stats\n");
824
825 stats->txdata_octets = conn->txdata_octets;
826 stats->rxdata_octets = conn->rxdata_octets;
827 stats->dataout_pdus = conn->dataout_pdus_cnt;
828 stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
829 stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
830 stats->datain_pdus = conn->datain_pdus_cnt;
831 stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
832 stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
833 stats->r2t_pdus = conn->r2t_pdus_cnt;
834 stats->digest_err = 0;
835 stats->timeout_err = 0;
836 stats->custom_length = 1;
837 strcpy(stats->custom[0].desc, "eh_abort_cnt");
838 stats->custom[0].value = conn->eh_abort_cnt;
839}
840
841
842
843
844
845
846static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
847 struct beiscsi_offload_params *params)
848{
849 struct iscsi_conn *conn = beiscsi_conn->conn;
850 struct iscsi_session *session = conn->session;
851
852 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
853 params, session->max_burst);
854 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
855 max_send_data_segment_length, params,
856 conn->max_xmit_dlength);
857 AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
858 params, session->first_burst);
859 AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
860 session->erl);
861 AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
862 conn->datadgst_en);
863 AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
864 conn->hdrdgst_en);
865 AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
866 session->initial_r2t_en);
867 AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
868 session->imm_data_en);
869 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
870 data_seq_inorder, params,
871 session->dataseq_inorder_en);
872 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
873 pdu_seq_inorder, params,
874 session->pdu_inorder_en);
875 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_r2t, params,
876 session->max_r2t);
877 AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
878 (conn->exp_statsn - 1));
879 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
880 max_recv_data_segment_length, params,
881 conn->max_recv_dlength);
882
883}
884
885
886
887
888
889int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
890{
891 struct iscsi_conn *conn = cls_conn->dd_data;
892 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
893 struct beiscsi_endpoint *beiscsi_ep;
894 struct beiscsi_offload_params params;
895 struct beiscsi_hba *phba;
896
897 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
898
899 if (!beiscsi_hba_is_online(phba)) {
900 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
901 "BS_%d : HBA in error 0x%lx\n", phba->state);
902 return -EBUSY;
903 }
904 beiscsi_log(beiscsi_conn->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
905 "BS_%d : In beiscsi_conn_start\n");
906
907 memset(¶ms, 0, sizeof(struct beiscsi_offload_params));
908 beiscsi_ep = beiscsi_conn->ep;
909 if (!beiscsi_ep)
910 beiscsi_log(beiscsi_conn->phba, KERN_ERR,
911 BEISCSI_LOG_CONFIG,
912 "BS_%d : In beiscsi_conn_start , no beiscsi_ep\n");
913
914 beiscsi_conn->login_in_progress = 0;
915 beiscsi_set_params_for_offld(beiscsi_conn, ¶ms);
916 beiscsi_offload_connection(beiscsi_conn, ¶ms);
917 iscsi_conn_start(cls_conn);
918 return 0;
919}
920
921
922
923
924
925static int beiscsi_get_cid(struct beiscsi_hba *phba)
926{
927 uint16_t cid_avlbl_ulp0, cid_avlbl_ulp1;
928 unsigned short cid, cid_from_ulp;
929 struct ulp_cid_info *cid_info;
930
931
932 cid_avlbl_ulp0 = (phba->cid_array_info[BEISCSI_ULP0]) ?
933 BEISCSI_ULP0_AVLBL_CID(phba) : 0;
934 cid_avlbl_ulp1 = (phba->cid_array_info[BEISCSI_ULP1]) ?
935 BEISCSI_ULP1_AVLBL_CID(phba) : 0;
936 cid_from_ulp = (cid_avlbl_ulp0 > cid_avlbl_ulp1) ?
937 BEISCSI_ULP0 : BEISCSI_ULP1;
938
939
940
941
942
943 if (!test_bit(cid_from_ulp, (void *)&phba->fw_config.ulp_supported))
944 return BE_INVALID_CID;
945
946 cid_info = phba->cid_array_info[cid_from_ulp];
947 cid = cid_info->cid_array[cid_info->cid_alloc];
948 if (!cid_info->avlbl_cids || cid == BE_INVALID_CID) {
949 __beiscsi_log(phba, KERN_ERR,
950 "BS_%d : failed to get cid: available %u:%u\n",
951 cid_info->avlbl_cids, cid_info->cid_free);
952 return BE_INVALID_CID;
953 }
954
955 cid_info->cid_array[cid_info->cid_alloc++] = BE_INVALID_CID;
956 if (cid_info->cid_alloc == BEISCSI_GET_CID_COUNT(phba, cid_from_ulp))
957 cid_info->cid_alloc = 0;
958 cid_info->avlbl_cids--;
959 return cid;
960}
961
962
963
964
965
966
967static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
968{
969 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
970 struct hwi_wrb_context *pwrb_context;
971 struct hwi_controller *phwi_ctrlr;
972 struct ulp_cid_info *cid_info;
973 uint16_t cid_post_ulp;
974
975 phwi_ctrlr = phba->phwi_ctrlr;
976 pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
977 cid_post_ulp = pwrb_context->ulp_num;
978
979 cid_info = phba->cid_array_info[cid_post_ulp];
980
981 if (cid_info->cid_array[cid_info->cid_free] != BE_INVALID_CID) {
982 __beiscsi_log(phba, KERN_ERR,
983 "BS_%d : failed to put cid %u: available %u:%u\n",
984 cid, cid_info->avlbl_cids, cid_info->cid_free);
985 return;
986 }
987 cid_info->cid_array[cid_info->cid_free++] = cid;
988 if (cid_info->cid_free == BEISCSI_GET_CID_COUNT(phba, cid_post_ulp))
989 cid_info->cid_free = 0;
990 cid_info->avlbl_cids++;
991}
992
993
994
995
996
997static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
998{
999 struct beiscsi_hba *phba = beiscsi_ep->phba;
1000 struct beiscsi_conn *beiscsi_conn;
1001
1002 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
1003 beiscsi_ep->phba = NULL;
1004
1005 phba->ep_array[BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid)] = NULL;
1006
1007
1008
1009
1010
1011
1012 if (!beiscsi_ep->conn)
1013 return;
1014
1015 beiscsi_conn = beiscsi_ep->conn;
1016
1017
1018
1019
1020 beiscsi_ep->conn = NULL;
1021 if (beiscsi_conn->login_in_progress) {
1022 beiscsi_free_mgmt_task_handles(beiscsi_conn,
1023 beiscsi_conn->task);
1024 beiscsi_conn->login_in_progress = 0;
1025 }
1026}
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036static int beiscsi_open_conn(struct iscsi_endpoint *ep,
1037 struct sockaddr *src_addr,
1038 struct sockaddr *dst_addr, int non_blocking)
1039{
1040 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1041 struct beiscsi_hba *phba = beiscsi_ep->phba;
1042 struct tcp_connect_and_offload_out *ptcpcnct_out;
1043 struct be_dma_mem nonemb_cmd;
1044 unsigned int tag, req_memsize;
1045 int ret = -ENOMEM;
1046
1047 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1048 "BS_%d : In beiscsi_open_conn\n");
1049
1050 beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
1051 if (beiscsi_ep->ep_cid == BE_INVALID_CID) {
1052 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1053 "BS_%d : No free cid available\n");
1054 return ret;
1055 }
1056
1057 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1058 "BS_%d : In beiscsi_open_conn, ep_cid=%d\n",
1059 beiscsi_ep->ep_cid);
1060
1061 phba->ep_array[BE_GET_CRI_FROM_CID
1062 (beiscsi_ep->ep_cid)] = ep;
1063
1064 beiscsi_ep->cid_vld = 0;
1065
1066 if (is_chip_be2_be3r(phba))
1067 req_memsize = sizeof(struct tcp_connect_and_offload_in);
1068 else
1069 req_memsize = sizeof(struct tcp_connect_and_offload_in_v1);
1070
1071 nonemb_cmd.va = dma_alloc_coherent(&phba->ctrl.pdev->dev,
1072 req_memsize,
1073 &nonemb_cmd.dma, GFP_KERNEL);
1074 if (nonemb_cmd.va == NULL) {
1075
1076 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1077 "BS_%d : Failed to allocate memory for"
1078 " mgmt_open_connection\n");
1079
1080 beiscsi_free_ep(beiscsi_ep);
1081 return -ENOMEM;
1082 }
1083 nonemb_cmd.size = req_memsize;
1084 memset(nonemb_cmd.va, 0, nonemb_cmd.size);
1085 tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
1086 if (!tag) {
1087 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1088 "BS_%d : mgmt_open_connection Failed for cid=%d\n",
1089 beiscsi_ep->ep_cid);
1090
1091 dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
1092 nonemb_cmd.va, nonemb_cmd.dma);
1093 beiscsi_free_ep(beiscsi_ep);
1094 return -EAGAIN;
1095 }
1096
1097 ret = beiscsi_mccq_compl_wait(phba, tag, NULL, &nonemb_cmd);
1098 if (ret) {
1099 beiscsi_log(phba, KERN_ERR,
1100 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
1101 "BS_%d : mgmt_open_connection Failed");
1102
1103 if (ret != -EBUSY)
1104 dma_free_coherent(&phba->ctrl.pdev->dev,
1105 nonemb_cmd.size, nonemb_cmd.va,
1106 nonemb_cmd.dma);
1107
1108 beiscsi_free_ep(beiscsi_ep);
1109 return ret;
1110 }
1111
1112 ptcpcnct_out = (struct tcp_connect_and_offload_out *)nonemb_cmd.va;
1113 beiscsi_ep = ep->dd_data;
1114 beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
1115 beiscsi_ep->cid_vld = 1;
1116 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1117 "BS_%d : mgmt_open_connection Success\n");
1118
1119 dma_free_coherent(&phba->ctrl.pdev->dev, nonemb_cmd.size,
1120 nonemb_cmd.va, nonemb_cmd.dma);
1121 return 0;
1122}
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132struct iscsi_endpoint *
1133beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1134 int non_blocking)
1135{
1136 struct beiscsi_hba *phba;
1137 struct beiscsi_endpoint *beiscsi_ep;
1138 struct iscsi_endpoint *ep;
1139 int ret;
1140
1141 if (!shost) {
1142 ret = -ENXIO;
1143 pr_err("beiscsi_ep_connect shost is NULL\n");
1144 return ERR_PTR(ret);
1145 }
1146
1147 phba = iscsi_host_priv(shost);
1148 if (!beiscsi_hba_is_online(phba)) {
1149 ret = -EIO;
1150 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1151 "BS_%d : HBA in error 0x%lx\n", phba->state);
1152 return ERR_PTR(ret);
1153 }
1154 if (!test_bit(BEISCSI_HBA_LINK_UP, &phba->state)) {
1155 ret = -EBUSY;
1156 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
1157 "BS_%d : The Adapter Port state is Down!!!\n");
1158 return ERR_PTR(ret);
1159 }
1160
1161 ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
1162 if (!ep) {
1163 ret = -ENOMEM;
1164 return ERR_PTR(ret);
1165 }
1166
1167 beiscsi_ep = ep->dd_data;
1168 beiscsi_ep->phba = phba;
1169 beiscsi_ep->openiscsi_ep = ep;
1170 ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
1171 if (ret) {
1172 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1173 "BS_%d : Failed in beiscsi_open_conn\n");
1174 goto free_ep;
1175 }
1176
1177 return ep;
1178
1179free_ep:
1180 iscsi_destroy_endpoint(ep);
1181 return ERR_PTR(ret);
1182}
1183
1184
1185
1186
1187
1188
1189
1190
1191int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1192{
1193 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1194
1195 beiscsi_log(beiscsi_ep->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1196 "BS_%d : In beiscsi_ep_poll\n");
1197
1198 if (beiscsi_ep->cid_vld == 1)
1199 return 1;
1200 else
1201 return 0;
1202}
1203
1204
1205
1206
1207
1208
1209
1210
1211static void beiscsi_flush_cq(struct beiscsi_hba *phba)
1212{
1213 uint16_t i;
1214 struct be_eq_obj *pbe_eq;
1215 struct hwi_controller *phwi_ctrlr;
1216 struct hwi_context_memory *phwi_context;
1217
1218 phwi_ctrlr = phba->phwi_ctrlr;
1219 phwi_context = phwi_ctrlr->phwi_ctxt;
1220
1221 for (i = 0; i < phba->num_cpus; i++) {
1222 pbe_eq = &phwi_context->be_eq[i];
1223 irq_poll_disable(&pbe_eq->iopoll);
1224 beiscsi_process_cq(pbe_eq, BE2_MAX_NUM_CQ_PROC);
1225 irq_poll_enable(&pbe_eq->iopoll);
1226 }
1227}
1228
1229
1230
1231
1232
1233
1234
1235static int beiscsi_conn_close(struct beiscsi_endpoint *beiscsi_ep)
1236{
1237 struct beiscsi_hba *phba = beiscsi_ep->phba;
1238 unsigned int tag, attempts;
1239 int ret;
1240
1241
1242
1243
1244
1245 attempts = 0;
1246 while (attempts++ < 3) {
1247 tag = beiscsi_invalidate_cxn(phba, beiscsi_ep);
1248 if (tag) {
1249 ret = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
1250 if (!ret)
1251 break;
1252 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1253 "BS_%d : invalidate conn failed cid %d\n",
1254 beiscsi_ep->ep_cid);
1255 }
1256 }
1257
1258
1259 msleep(250);
1260
1261 beiscsi_flush_cq(phba);
1262
1263 if (attempts > 3)
1264 return -1;
1265
1266 attempts = 0;
1267 while (attempts++ < 3) {
1268 tag = beiscsi_upload_cxn(phba, beiscsi_ep);
1269 if (tag) {
1270 ret = beiscsi_mccq_compl_wait(phba, tag, NULL, NULL);
1271 if (!ret)
1272 break;
1273 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1274 "BS_%d : upload conn failed cid %d\n",
1275 beiscsi_ep->ep_cid);
1276 }
1277 }
1278 if (attempts > 3)
1279 return -1;
1280
1281 return 0;
1282}
1283
1284
1285
1286
1287
1288
1289
1290void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
1291{
1292 struct beiscsi_endpoint *beiscsi_ep;
1293 struct beiscsi_conn *beiscsi_conn;
1294 struct beiscsi_hba *phba;
1295 uint16_t cri_index;
1296
1297 beiscsi_ep = ep->dd_data;
1298 phba = beiscsi_ep->phba;
1299 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1300 "BS_%d : In beiscsi_ep_disconnect for ep_cid = %u\n",
1301 beiscsi_ep->ep_cid);
1302
1303 cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
1304 if (!phba->ep_array[cri_index]) {
1305 __beiscsi_log(phba, KERN_ERR,
1306 "BS_%d : ep_array at %u cid %u empty\n",
1307 cri_index,
1308 beiscsi_ep->ep_cid);
1309 return;
1310 }
1311
1312 if (beiscsi_ep->conn) {
1313 beiscsi_conn = beiscsi_ep->conn;
1314 iscsi_suspend_queue(beiscsi_conn->conn);
1315 }
1316
1317 if (!beiscsi_hba_is_online(phba)) {
1318 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1319 "BS_%d : HBA in error 0x%lx\n", phba->state);
1320 } else {
1321
1322
1323
1324
1325 if (beiscsi_conn_close(beiscsi_ep) < 0)
1326 __beiscsi_log(phba, KERN_ERR,
1327 "BS_%d : close conn failed cid %d\n",
1328 beiscsi_ep->ep_cid);
1329 }
1330
1331 beiscsi_free_ep(beiscsi_ep);
1332 if (!phba->conn_table[cri_index])
1333 __beiscsi_log(phba, KERN_ERR,
1334 "BS_%d : conn_table empty at %u: cid %u\n",
1335 cri_index, beiscsi_ep->ep_cid);
1336 phba->conn_table[cri_index] = NULL;
1337 iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
1338}
1339
1340umode_t beiscsi_attr_is_visible(int param_type, int param)
1341{
1342 switch (param_type) {
1343 case ISCSI_NET_PARAM:
1344 switch (param) {
1345 case ISCSI_NET_PARAM_IFACE_ENABLE:
1346 case ISCSI_NET_PARAM_IPV4_ADDR:
1347 case ISCSI_NET_PARAM_IPV4_SUBNET:
1348 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1349 case ISCSI_NET_PARAM_IPV4_GW:
1350 case ISCSI_NET_PARAM_IPV6_ADDR:
1351 case ISCSI_NET_PARAM_VLAN_ID:
1352 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1353 case ISCSI_NET_PARAM_VLAN_ENABLED:
1354 return S_IRUGO;
1355 default:
1356 return 0;
1357 }
1358 case ISCSI_HOST_PARAM:
1359 switch (param) {
1360 case ISCSI_HOST_PARAM_HWADDRESS:
1361 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1362 case ISCSI_HOST_PARAM_PORT_STATE:
1363 case ISCSI_HOST_PARAM_PORT_SPEED:
1364 return S_IRUGO;
1365 default:
1366 return 0;
1367 }
1368 case ISCSI_PARAM:
1369 switch (param) {
1370 case ISCSI_PARAM_MAX_RECV_DLENGTH:
1371 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
1372 case ISCSI_PARAM_HDRDGST_EN:
1373 case ISCSI_PARAM_DATADGST_EN:
1374 case ISCSI_PARAM_CONN_ADDRESS:
1375 case ISCSI_PARAM_CONN_PORT:
1376 case ISCSI_PARAM_EXP_STATSN:
1377 case ISCSI_PARAM_PERSISTENT_ADDRESS:
1378 case ISCSI_PARAM_PERSISTENT_PORT:
1379 case ISCSI_PARAM_PING_TMO:
1380 case ISCSI_PARAM_RECV_TMO:
1381 case ISCSI_PARAM_INITIAL_R2T_EN:
1382 case ISCSI_PARAM_MAX_R2T:
1383 case ISCSI_PARAM_IMM_DATA_EN:
1384 case ISCSI_PARAM_FIRST_BURST:
1385 case ISCSI_PARAM_MAX_BURST:
1386 case ISCSI_PARAM_PDU_INORDER_EN:
1387 case ISCSI_PARAM_DATASEQ_INORDER_EN:
1388 case ISCSI_PARAM_ERL:
1389 case ISCSI_PARAM_TARGET_NAME:
1390 case ISCSI_PARAM_TPGT:
1391 case ISCSI_PARAM_USERNAME:
1392 case ISCSI_PARAM_PASSWORD:
1393 case ISCSI_PARAM_USERNAME_IN:
1394 case ISCSI_PARAM_PASSWORD_IN:
1395 case ISCSI_PARAM_FAST_ABORT:
1396 case ISCSI_PARAM_ABORT_TMO:
1397 case ISCSI_PARAM_LU_RESET_TMO:
1398 case ISCSI_PARAM_IFACE_NAME:
1399 case ISCSI_PARAM_INITIATOR_NAME:
1400 return S_IRUGO;
1401 default:
1402 return 0;
1403 }
1404 }
1405
1406 return 0;
1407}
1408
