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[SCSI] be2iscsi: Fix repeated issue of MAC ADDR get IOCTL
[linux-2.6-block.git] / drivers / scsi / be2iscsi / be_iscsi.c
CommitLineData
6733b39a 1/**
533c165f 2 * Copyright (C) 2005 - 2013 Emulex
6733b39a
JK		 3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
255fa9a3 10 * Written by: Jayamohan Kallickal (jayamohan.kallickal@emulex.com)
6733b39a
JK		 11 *
12 * Contact Information:
255fa9a3 13 * linux-drivers@emulex.com
6733b39a 14 *
255fa9a3
JK		 15 * Emulex
16 * 3333 Susan Street
17 * Costa Mesa, CA 92626
6733b39a
JK		 18 */
19
20#include <scsi/libiscsi.h>
21#include <scsi/scsi_transport_iscsi.h>
22#include <scsi/scsi_transport.h>
23#include <scsi/scsi_cmnd.h>
24#include <scsi/scsi_device.h>
25#include <scsi/scsi_host.h>
0e43895e
MC		 26#include <scsi/scsi_netlink.h>
27#include <net/netlink.h>
6733b39a
JK		 28#include <scsi/scsi.h>
29
30#include "be_iscsi.h"
31
32extern struct iscsi_transport beiscsi_iscsi_transport;
33
34/**
35 * beiscsi_session_create - creates a new iscsi session
36 * @cmds_max: max commands supported
37 * @qdepth: max queue depth supported
38 * @initial_cmdsn: initial iscsi CMDSN
39 */
40struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
41 u16 cmds_max,
42 u16 qdepth,
43 u32 initial_cmdsn)
44{
45 struct Scsi_Host *shost;
46 struct beiscsi_endpoint *beiscsi_ep;
47 struct iscsi_cls_session *cls_session;
6733b39a 48 struct beiscsi_hba *phba;
b8b9e1b8
JK		 49 struct iscsi_session *sess;
50 struct beiscsi_session *beiscsi_sess;
6733b39a 51 struct beiscsi_io_task *io_task;
6733b39a 52
6733b39a
JK		 53
54 if (!ep) {
99bc5d55
JSJ		 55 printk(KERN_ERR
56 "beiscsi_session_create: invalid ep\n");
6733b39a
JK		 57 return NULL;
58 }
59 beiscsi_ep = ep->dd_data;
60 phba = beiscsi_ep->phba;
61 shost = phba->shost;
99bc5d55
JSJ		 62
63 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
64 "BS_%d : In beiscsi_session_create\n");
65
6733b39a 66 if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
99bc5d55
JSJ		 67 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
68 "BS_%d : Cannot handle %d cmds."
69 "Max cmds per session supported is %d. Using %d."
70 "\n", cmds_max,
71 beiscsi_ep->phba->params.wrbs_per_cxn,
72 beiscsi_ep->phba->params.wrbs_per_cxn);
73
6733b39a
JK		 74 cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
75 }
76
bfead3b2
JK		 77 cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
78 shost, cmds_max,
79 sizeof(*beiscsi_sess),
80 sizeof(*io_task),
81 initial_cmdsn, ISCSI_MAX_TARGET);
6733b39a
JK		 82 if (!cls_session)
83 return NULL;
84 sess = cls_session->dd_data;
2afc95bf
JK		 85 beiscsi_sess = sess->dd_data;
86 beiscsi_sess->bhs_pool = pci_pool_create("beiscsi_bhs_pool",
87 phba->pcidev,
88 sizeof(struct be_cmd_bhs),
89 64, 0);
90 if (!beiscsi_sess->bhs_pool)
91 goto destroy_sess;
6733b39a 92
6733b39a 93 return cls_session;
2afc95bf
JK		 94destroy_sess:
95 iscsi_session_teardown(cls_session);
96 return NULL;
6733b39a
JK		 97}
98
99/**
100 * beiscsi_session_destroy - destroys iscsi session
101 * @cls_session: pointer to iscsi cls session
102 *
103 * Destroys iSCSI session instance and releases
104 * resources allocated for it.
105 */
106void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
107{
6733b39a 108 struct iscsi_session *sess = cls_session->dd_data;
2afc95bf 109 struct beiscsi_session *beiscsi_sess = sess->dd_data;
6733b39a 110
99bc5d55 111 printk(KERN_INFO "In beiscsi_session_destroy\n");
2afc95bf 112 pci_pool_destroy(beiscsi_sess->bhs_pool);
6733b39a
JK		 113 iscsi_session_teardown(cls_session);
114}
115
116/**
117 * beiscsi_conn_create - create an instance of iscsi connection
118 * @cls_session: ptr to iscsi_cls_session
119 * @cid: iscsi cid
120 */
121struct iscsi_cls_conn *
122beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
123{
124 struct beiscsi_hba *phba;
125 struct Scsi_Host *shost;
126 struct iscsi_cls_conn *cls_conn;
127 struct beiscsi_conn *beiscsi_conn;
128 struct iscsi_conn *conn;
2afc95bf
JK		 129 struct iscsi_session *sess;
130 struct beiscsi_session *beiscsi_sess;
6733b39a 131
6733b39a
JK		 132 shost = iscsi_session_to_shost(cls_session);
133 phba = iscsi_host_priv(shost);
134
99bc5d55
JSJ		 135 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
136 "BS_%d : In beiscsi_conn_create ,cid"
137 "from iscsi layer=%d\n", cid);
138
6733b39a
JK		 139 cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
140 if (!cls_conn)
141 return NULL;
142
143 conn = cls_conn->dd_data;
144 beiscsi_conn = conn->dd_data;
145 beiscsi_conn->ep = NULL;
146 beiscsi_conn->phba = phba;
147 beiscsi_conn->conn = conn;
2afc95bf
JK		 148 sess = cls_session->dd_data;
149 beiscsi_sess = sess->dd_data;
150 beiscsi_conn->beiscsi_sess = beiscsi_sess;
6733b39a
JK		 151 return cls_conn;
152}
153
154/**
155 * beiscsi_bindconn_cid - Bind the beiscsi_conn with phba connection table
156 * @beiscsi_conn: The pointer to beiscsi_conn structure
157 * @phba: The phba instance
158 * @cid: The cid to free
159 */
160static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
161 struct beiscsi_conn *beiscsi_conn,
162 unsigned int cid)
163{
a7909b39
JK		 164 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
165
166 if (phba->conn_table[cri_index]) {
99bc5d55
JSJ		 167 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
168 "BS_%d : Connection table already occupied. Detected clash\n");
169
6733b39a
JK		 170 return -EINVAL;
171 } else {
99bc5d55
JSJ		 172 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
173 "BS_%d : phba->conn_table[%d]=%p(beiscsi_conn)\n",
a7909b39 174 cri_index, beiscsi_conn);
99bc5d55 175
a7909b39 176 phba->conn_table[cri_index] = beiscsi_conn;
6733b39a
JK		 177 }
178 return 0;
179}
180
181/**
182 * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection
183 * @cls_session: pointer to iscsi cls session
184 * @cls_conn: pointer to iscsi cls conn
185 * @transport_fd: EP handle(64 bit)
186 *
187 * This function binds the TCP Conn with iSCSI Connection and Session.
188 */
189int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
190 struct iscsi_cls_conn *cls_conn,
191 u64 transport_fd, int is_leading)
192{
193 struct iscsi_conn *conn = cls_conn->dd_data;
194 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
3093b048
MC		 195 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
196 struct beiscsi_hba *phba = iscsi_host_priv(shost);
6733b39a
JK		 197 struct beiscsi_endpoint *beiscsi_ep;
198 struct iscsi_endpoint *ep;
199
6733b39a
JK		 200 ep = iscsi_lookup_endpoint(transport_fd);
201 if (!ep)
202 return -EINVAL;
203
204 beiscsi_ep = ep->dd_data;
205
206 if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
207 return -EINVAL;
208
209 if (beiscsi_ep->phba != phba) {
99bc5d55
JSJ		 210 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
211 "BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
212 beiscsi_ep->phba, phba);
213
6733b39a
JK		 214 return -EEXIST;
215 }
216
217 beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
218 beiscsi_conn->ep = beiscsi_ep;
219 beiscsi_ep->conn = beiscsi_conn;
99bc5d55
JSJ		 220
221 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
222 "BS_%d : beiscsi_conn=%p conn=%p ep_cid=%d\n",
223 beiscsi_conn, conn, beiscsi_ep->ep_cid);
224
6733b39a
JK		 225 return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
226}
227
0e43895e
MC		 228static int beiscsi_create_ipv4_iface(struct beiscsi_hba *phba)
229{
230 if (phba->ipv4_iface)
231 return 0;
232
233 phba->ipv4_iface = iscsi_create_iface(phba->shost,
234 &beiscsi_iscsi_transport,
235 ISCSI_IFACE_TYPE_IPV4,
236 0, 0);
237 if (!phba->ipv4_iface) {
99bc5d55
JSJ		 238 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
239 "BS_%d : Could not "
240 "create default IPv4 address.\n");
0e43895e
MC		 241 return -ENODEV;
242 }
243
244 return 0;
245}
246
247static int beiscsi_create_ipv6_iface(struct beiscsi_hba *phba)
248{
249 if (phba->ipv6_iface)
250 return 0;
251
252 phba->ipv6_iface = iscsi_create_iface(phba->shost,
253 &beiscsi_iscsi_transport,
254 ISCSI_IFACE_TYPE_IPV6,
255 0, 0);
256 if (!phba->ipv6_iface) {
99bc5d55
JSJ		 257 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
258 "BS_%d : Could not "
259 "create default IPv6 address.\n");
0e43895e
MC		 260 return -ENODEV;
261 }
262
263 return 0;
264}
265
266void beiscsi_create_def_ifaces(struct beiscsi_hba *phba)
267{
268 struct be_cmd_get_if_info_resp if_info;
269
270 if (!mgmt_get_if_info(phba, BE2_IPV4, &if_info))
271 beiscsi_create_ipv4_iface(phba);
272
273 if (!mgmt_get_if_info(phba, BE2_IPV6, &if_info))
274 beiscsi_create_ipv6_iface(phba);
275}
276
277void beiscsi_destroy_def_ifaces(struct beiscsi_hba *phba)
278{
279 if (phba->ipv6_iface)
280 iscsi_destroy_iface(phba->ipv6_iface);
281 if (phba->ipv4_iface)
282 iscsi_destroy_iface(phba->ipv4_iface);
283}
284
285static int
286beiscsi_set_static_ip(struct Scsi_Host *shost,
287 struct iscsi_iface_param_info *iface_param,
288 void *data, uint32_t dt_len)
289{
290 struct beiscsi_hba *phba = iscsi_host_priv(shost);
291 struct iscsi_iface_param_info *iface_ip = NULL;
292 struct iscsi_iface_param_info *iface_subnet = NULL;
293 struct nlattr *nla;
294 int ret;
295
296
297 switch (iface_param->param) {
298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
299 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
300 if (nla)
301 iface_ip = nla_data(nla);
302
303 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
304 if (nla)
305 iface_subnet = nla_data(nla);
306 break;
307 case ISCSI_NET_PARAM_IPV4_ADDR:
308 iface_ip = iface_param;
309 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET);
310 if (nla)
311 iface_subnet = nla_data(nla);
312 break;
313 case ISCSI_NET_PARAM_IPV4_SUBNET:
314 iface_subnet = iface_param;
315 nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR);
316 if (nla)
317 iface_ip = nla_data(nla);
318 break;
319 default:
99bc5d55
JSJ		 320 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
321 "BS_%d : Unsupported param %d\n",
322 iface_param->param);
0e43895e
MC		 323 }
324
325 if (!iface_ip || !iface_subnet) {
99bc5d55
JSJ		 326 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
327 "BS_%d : IP and Subnet Mask required\n");
0e43895e
MC		 328 return -EINVAL;
329 }
330
331 ret = mgmt_set_ip(phba, iface_ip, iface_subnet,
332 ISCSI_BOOTPROTO_STATIC);
333
334 return ret;
335}
336
6f72238e
JSJ		 337/**
338 * beiscsi_set_vlan_tag()- Set the VLAN TAG
339 * @shost: Scsi Host for the driver instance
340 * @iface_param: Interface paramters
341 *
342 * Set the VLAN TAG for the adapter or disable
343 * the VLAN config
344 *
345 * returns
346 * Success: 0
347 * Failure: Non-Zero Value
348 **/
349static int
350beiscsi_set_vlan_tag(struct Scsi_Host *shost,
351 struct iscsi_iface_param_info *iface_param)
352{
353 struct beiscsi_hba *phba = iscsi_host_priv(shost);
354 int ret = 0;
355
356 /* Get the Interface Handle */
357 if (mgmt_get_all_if_id(phba)) {
358 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
359 "BS_%d : Getting Interface Handle Failed\n");
360 return -EIO;
361 }
362
363 switch (iface_param->param) {
364 case ISCSI_NET_PARAM_VLAN_ENABLED:
365 if (iface_param->value[0] != ISCSI_VLAN_ENABLE)
366 ret = mgmt_set_vlan(phba, BEISCSI_VLAN_DISABLE);
367 break;
368 case ISCSI_NET_PARAM_VLAN_TAG:
369 ret = mgmt_set_vlan(phba,
370 *((uint16_t *)iface_param->value));
371 break;
372 default:
373 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
b23f7a09 374 "BS_%d : Unknown Param Type : %d\n",
6f72238e
JSJ		 375 iface_param->param);
376 return -ENOSYS;
377 }
378 return ret;
379}
380
381
0e43895e
MC		 382static int
383beiscsi_set_ipv4(struct Scsi_Host *shost,
384 struct iscsi_iface_param_info *iface_param,
385 void *data, uint32_t dt_len)
386{
387 struct beiscsi_hba *phba = iscsi_host_priv(shost);
388 int ret = 0;
389
390 /* Check the param */
391 switch (iface_param->param) {
392 case ISCSI_NET_PARAM_IPV4_GW:
393 ret = mgmt_set_gateway(phba, iface_param);
394 break;
395 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
396 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP)
397 ret = mgmt_set_ip(phba, iface_param,
398 NULL, ISCSI_BOOTPROTO_DHCP);
399 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC)
400 ret = beiscsi_set_static_ip(shost, iface_param,
401 data, dt_len);
402 else
99bc5d55
JSJ		 403 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
404 "BS_%d : Invalid BOOTPROTO: %d\n",
405 iface_param->value[0]);
0e43895e
MC		 406 break;
407 case ISCSI_NET_PARAM_IFACE_ENABLE:
408 if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
409 ret = beiscsi_create_ipv4_iface(phba);
410 else
411 iscsi_destroy_iface(phba->ipv4_iface);
412 break;
413 case ISCSI_NET_PARAM_IPV4_SUBNET:
414 case ISCSI_NET_PARAM_IPV4_ADDR:
415 ret = beiscsi_set_static_ip(shost, iface_param,
416 data, dt_len);
417 break;
6f72238e
JSJ		 418 case ISCSI_NET_PARAM_VLAN_ENABLED:
419 case ISCSI_NET_PARAM_VLAN_TAG:
420 ret = beiscsi_set_vlan_tag(shost, iface_param);
421 break;
0e43895e 422 default:
99bc5d55
JSJ		 423 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
424 "BS_%d : Param %d not supported\n",
425 iface_param->param);
0e43895e
MC		 426 }
427
428 return ret;
429}
430
431static int
432beiscsi_set_ipv6(struct Scsi_Host *shost,
433 struct iscsi_iface_param_info *iface_param,
434 void *data, uint32_t dt_len)
435{
436 struct beiscsi_hba *phba = iscsi_host_priv(shost);
437 int ret = 0;
438
439 switch (iface_param->param) {
440 case ISCSI_NET_PARAM_IFACE_ENABLE:
441 if (iface_param->value[0] == ISCSI_IFACE_ENABLE)
442 ret = beiscsi_create_ipv6_iface(phba);
443 else {
444 iscsi_destroy_iface(phba->ipv6_iface);
445 ret = 0;
446 }
447 break;
448 case ISCSI_NET_PARAM_IPV6_ADDR:
449 ret = mgmt_set_ip(phba, iface_param, NULL,
450 ISCSI_BOOTPROTO_STATIC);
451 break;
452 default:
99bc5d55
JSJ		 453 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
454 "BS_%d : Param %d not supported\n",
455 iface_param->param);
0e43895e
MC		 456 }
457
458 return ret;
459}
460
461int be2iscsi_iface_set_param(struct Scsi_Host *shost,
462 void *data, uint32_t dt_len)
463{
464 struct iscsi_iface_param_info *iface_param = NULL;
99bc5d55 465 struct beiscsi_hba *phba = iscsi_host_priv(shost);
0e43895e
MC		 466 struct nlattr *attrib;
467 uint32_t rm_len = dt_len;
468 int ret = 0 ;
469
470 nla_for_each_attr(attrib, data, dt_len, rm_len) {
471 iface_param = nla_data(attrib);
472
473 if (iface_param->param_type != ISCSI_NET_PARAM)
474 continue;
475
476 /*
477 * BE2ISCSI only supports 1 interface
478 */
479 if (iface_param->iface_num) {
99bc5d55
JSJ		 480 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
481 "BS_%d : Invalid iface_num %d."
482 "Only iface_num 0 is supported.\n",
483 iface_param->iface_num);
484
0e43895e
MC		 485 return -EINVAL;
486 }
487
488 switch (iface_param->iface_type) {
489 case ISCSI_IFACE_TYPE_IPV4:
490 ret = beiscsi_set_ipv4(shost, iface_param,
491 data, dt_len);
492 break;
493 case ISCSI_IFACE_TYPE_IPV6:
494 ret = beiscsi_set_ipv6(shost, iface_param,
495 data, dt_len);
496 break;
497 default:
99bc5d55
JSJ		 498 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
499 "BS_%d : Invalid iface type :%d passed\n",
500 iface_param->iface_type);
0e43895e
MC		 501 break;
502 }
503
504 if (ret)
505 return ret;
506 }
507
508 return ret;
509}
510
511static int be2iscsi_get_if_param(struct beiscsi_hba *phba,
512 struct iscsi_iface *iface, int param,
513 char *buf)
514{
515 struct be_cmd_get_if_info_resp if_info;
516 int len, ip_type = BE2_IPV4;
517
518 memset(&if_info, 0, sizeof(if_info));
519
520 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
521 ip_type = BE2_IPV6;
522
523 len = mgmt_get_if_info(phba, ip_type, &if_info);
524 if (len)
525 return len;
526
527 switch (param) {
528 case ISCSI_NET_PARAM_IPV4_ADDR:
529 len = sprintf(buf, "%pI4\n", &if_info.ip_addr.addr);
530 break;
531 case ISCSI_NET_PARAM_IPV6_ADDR:
532 len = sprintf(buf, "%pI6\n", &if_info.ip_addr.addr);
533 break;
534 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
535 if (!if_info.dhcp_state)
8359c79b 536 len = sprintf(buf, "static\n");
0e43895e 537 else
8359c79b 538 len = sprintf(buf, "dhcp\n");
0e43895e
MC		 539 break;
540 case ISCSI_NET_PARAM_IPV4_SUBNET:
541 len = sprintf(buf, "%pI4\n", &if_info.ip_addr.subnet_mask);
542 break;
6f72238e
JSJ		 543 case ISCSI_NET_PARAM_VLAN_ENABLED:
544 len = sprintf(buf, "%s\n",
545 (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
8359c79b 546 ? "Disabled\n" : "Enabled\n");
6f72238e
JSJ		 547 break;
548 case ISCSI_NET_PARAM_VLAN_ID:
549 if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
550 return -EINVAL;
551 else
552 len = sprintf(buf, "%d\n",
553 (if_info.vlan_priority &
554 ISCSI_MAX_VLAN_ID));
555 break;
556 case ISCSI_NET_PARAM_VLAN_PRIORITY:
557 if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
558 return -EINVAL;
559 else
560 len = sprintf(buf, "%d\n",
561 ((if_info.vlan_priority >> 13) &
562 ISCSI_MAX_VLAN_PRIORITY));
563 break;
0e43895e
MC		 564 default:
565 WARN_ON(1);
566 }
567
568 return len;
569}
570
571int be2iscsi_iface_get_param(struct iscsi_iface *iface,
572 enum iscsi_param_type param_type,
573 int param, char *buf)
574{
575 struct Scsi_Host *shost = iscsi_iface_to_shost(iface);
576 struct beiscsi_hba *phba = iscsi_host_priv(shost);
577 struct be_cmd_get_def_gateway_resp gateway;
578 int len = -ENOSYS;
579
580 switch (param) {
581 case ISCSI_NET_PARAM_IPV4_ADDR:
582 case ISCSI_NET_PARAM_IPV4_SUBNET:
583 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
584 case ISCSI_NET_PARAM_IPV6_ADDR:
6f72238e
JSJ		 585 case ISCSI_NET_PARAM_VLAN_ENABLED:
586 case ISCSI_NET_PARAM_VLAN_ID:
587 case ISCSI_NET_PARAM_VLAN_PRIORITY:
0e43895e
MC		 588 len = be2iscsi_get_if_param(phba, iface, param, buf);
589 break;
590 case ISCSI_NET_PARAM_IFACE_ENABLE:
8359c79b 591 len = sprintf(buf, "enabled\n");
0e43895e
MC		 592 break;
593 case ISCSI_NET_PARAM_IPV4_GW:
594 memset(&gateway, 0, sizeof(gateway));
595 len = mgmt_get_gateway(phba, BE2_IPV4, &gateway);
596 if (!len)
597 len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr);
598 break;
599 default:
600 len = -ENOSYS;
601 }
602
603 return len;
604}
605
6733b39a 606/**
c7f7fd5b
MC		 607 * beiscsi_ep_get_param - get the iscsi parameter
608 * @ep: pointer to iscsi ep
6733b39a
JK		 609 * @param: parameter type identifier
610 * @buf: buffer pointer
611 *
612 * returns iscsi parameter
613 */
c7f7fd5b 614int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
6733b39a
JK		 615 enum iscsi_param param, char *buf)
616{
c7f7fd5b 617 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
6733b39a
JK		 618 int len = 0;
619
99bc5d55
JSJ		 620 beiscsi_log(beiscsi_ep->phba, KERN_INFO,
621 BEISCSI_LOG_CONFIG,
622 "BS_%d : In beiscsi_ep_get_param,"
623 " param= %d\n", param);
6733b39a
JK		 624
625 switch (param) {
626 case ISCSI_PARAM_CONN_PORT:
627 len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
628 break;
629 case ISCSI_PARAM_CONN_ADDRESS:
630 if (beiscsi_ep->ip_type == BE2_IPV4)
631 len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
632 else
633 len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
634 break;
635 default:
c7f7fd5b 636 return -ENOSYS;
6733b39a
JK		 637 }
638 return len;
639}
640
641int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
642 enum iscsi_param param, char *buf, int buflen)
643{
644 struct iscsi_conn *conn = cls_conn->dd_data;
645 struct iscsi_session *session = conn->session;
99bc5d55 646 struct beiscsi_hba *phba = NULL;
6733b39a
JK		 647 int ret;
648
99bc5d55
JSJ		 649 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
650 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
651 "BS_%d : In beiscsi_conn_set_param,"
652 " param= %d\n", param);
653
6733b39a
JK		 654 ret = iscsi_set_param(cls_conn, param, buf, buflen);
655 if (ret)
656 return ret;
657 /*
658 * If userspace tried to set the value to higher than we can
659 * support override here.
660 */
661 switch (param) {
662 case ISCSI_PARAM_FIRST_BURST:
663 if (session->first_burst > 8192)
664 session->first_burst = 8192;
665 break;
666 case ISCSI_PARAM_MAX_RECV_DLENGTH:
667 if (conn->max_recv_dlength > 65536)
668 conn->max_recv_dlength = 65536;
669 break;
670 case ISCSI_PARAM_MAX_BURST:
230dceb4
JK		 671 if (session->max_burst > 262144)
672 session->max_burst = 262144;
6733b39a 673 break;
42f43c41
JK		 674 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
675 if ((conn->max_xmit_dlength > 65536) ||
676 (conn->max_xmit_dlength == 0))
677 conn->max_xmit_dlength = 65536;
6733b39a
JK		 678 default:
679 return 0;
680 }
681
682 return 0;
683}
684
2177199d
JSJ		 685/**
686 * beiscsi_get_initname - Read Initiator Name from flash
687 * @buf: buffer bointer
688 * @phba: The device priv structure instance
689 *
690 * returns number of bytes
691 */
692static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba)
693{
694 int rc;
e175defe 695 unsigned int tag;
2177199d
JSJ		 696 struct be_mcc_wrb *wrb;
697 struct be_cmd_hba_name *resp;
2177199d
JSJ		 698
699 tag = be_cmd_get_initname(phba);
700 if (!tag) {
99bc5d55
JSJ		 701 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
702 "BS_%d : Getting Initiator Name Failed\n");
703
2177199d 704 return -EBUSY;
e175defe 705 }
2177199d 706
e175defe
JSJ		 707 rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
708 if (rc) {
99bc5d55
JSJ		 709 beiscsi_log(phba, KERN_ERR,
710 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
e175defe
JSJ		 711 "BS_%d : Initiator Name MBX Failed\n");
712 return rc;
2177199d 713 }
e175defe 714
2177199d
JSJ		 715 resp = embedded_payload(wrb);
716 rc = sprintf(buf, "%s\n", resp->initiator_name);
717 return rc;
718}
719
c62eef0d
JSJ		 720/**
721 * beiscsi_get_port_state - Get the Port State
722 * @shost : pointer to scsi_host structure
723 *
c62eef0d
JSJ		 724 */
725static void beiscsi_get_port_state(struct Scsi_Host *shost)
726{
727 struct beiscsi_hba *phba = iscsi_host_priv(shost);
728 struct iscsi_cls_host *ihost = shost->shost_data;
729
730 ihost->port_state = (phba->state == BE_ADAPTER_UP) ?
731 ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
732}
733
734/**
735 * beiscsi_get_port_speed - Get the Port Speed from Adapter
736 * @shost : pointer to scsi_host structure
737 *
738 * returns Success/Failure
739 */
740static int beiscsi_get_port_speed(struct Scsi_Host *shost)
741{
e175defe
JSJ		 742 int rc;
743 unsigned int tag;
c62eef0d
JSJ		 744 struct be_mcc_wrb *wrb;
745 struct be_cmd_ntwk_link_status_resp *resp;
746 struct beiscsi_hba *phba = iscsi_host_priv(shost);
747 struct iscsi_cls_host *ihost = shost->shost_data;
c62eef0d
JSJ		 748
749 tag = be_cmd_get_port_speed(phba);
750 if (!tag) {
99bc5d55
JSJ		 751 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
752 "BS_%d : Getting Port Speed Failed\n");
753
c62eef0d 754 return -EBUSY;
e175defe
JSJ		 755 }
756 rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
757 if (rc) {
99bc5d55
JSJ		 758 beiscsi_log(phba, KERN_ERR,
759 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
e175defe
JSJ		 760 "BS_%d : Port Speed MBX Failed\n");
761 return rc;
c62eef0d 762 }
c62eef0d
JSJ		 763 resp = embedded_payload(wrb);
764
765 switch (resp->mac_speed) {
766 case BE2ISCSI_LINK_SPEED_10MBPS:
767 ihost->port_speed = ISCSI_PORT_SPEED_10MBPS;
768 break;
769 case BE2ISCSI_LINK_SPEED_100MBPS:
770 ihost->port_speed = BE2ISCSI_LINK_SPEED_100MBPS;
771 break;
772 case BE2ISCSI_LINK_SPEED_1GBPS:
773 ihost->port_speed = ISCSI_PORT_SPEED_1GBPS;
774 break;
775 case BE2ISCSI_LINK_SPEED_10GBPS:
776 ihost->port_speed = ISCSI_PORT_SPEED_10GBPS;
777 break;
778 default:
779 ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN;
780 }
781 return 0;
782}
783
6733b39a
JK		 784/**
785 * beiscsi_get_host_param - get the iscsi parameter
786 * @shost: pointer to scsi_host structure
787 * @param: parameter type identifier
788 * @buf: buffer pointer
789 *
790 * returns host parameter
791 */
792int beiscsi_get_host_param(struct Scsi_Host *shost,
793 enum iscsi_host_param param, char *buf)
794{
3093b048 795 struct beiscsi_hba *phba = iscsi_host_priv(shost);
b15d05b0 796 int status = 0;
6733b39a 797
99bc5d55
JSJ		 798 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
799 "BS_%d : In beiscsi_get_host_param,"
800 " param= %d\n", param);
801
6733b39a
JK		 802 switch (param) {
803 case ISCSI_HOST_PARAM_HWADDRESS:
c7acc5b8
JK		 804 status = beiscsi_get_macaddr(buf, phba);
805 if (status < 0) {
99bc5d55
JSJ		 806 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
807 "BS_%d : beiscsi_get_macaddr Failed\n");
c7acc5b8 808 return status;
756d29c8 809 }
6733b39a 810 break;
2177199d
JSJ		 811 case ISCSI_HOST_PARAM_INITIATOR_NAME:
812 status = beiscsi_get_initname(buf, phba);
813 if (status < 0) {
99bc5d55
JSJ		 814 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
815 "BS_%d : Retreiving Initiator Name Failed\n");
2177199d
JSJ		 816 return status;
817 }
818 break;
c62eef0d
JSJ		 819 case ISCSI_HOST_PARAM_PORT_STATE:
820 beiscsi_get_port_state(shost);
821 status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost));
822 break;
823 case ISCSI_HOST_PARAM_PORT_SPEED:
824 status = beiscsi_get_port_speed(shost);
825 if (status) {
99bc5d55
JSJ		 826 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
827 "BS_%d : Retreiving Port Speed Failed\n");
c62eef0d
JSJ		 828 return status;
829 }
830 status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost));
831 break;
6733b39a
JK		 832 default:
833 return iscsi_host_get_param(shost, param, buf);
834 }
b15d05b0 835 return status;
6733b39a
JK		 836}
837
c7acc5b8
JK		 838int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
839{
0e43895e 840 struct be_cmd_get_nic_conf_resp resp;
c7acc5b8
JK		 841 int rc;
842
6c83185a 843 if (phba->mac_addr_set)
df5d0e6e 844 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
c7acc5b8 845
0e43895e
MC		 846 memset(&resp, 0, sizeof(resp));
847 rc = mgmt_get_nic_conf(phba, &resp);
848 if (rc)
849 return rc;
c7acc5b8 850
6c83185a 851 phba->mac_addr_set = true;
0e43895e
MC		 852 memcpy(phba->mac_address, resp.mac_address, ETH_ALEN);
853 return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
c7acc5b8
JK		 854}
855
6733b39a
JK		 856/**
857 * beiscsi_conn_get_stats - get the iscsi stats
858 * @cls_conn: pointer to iscsi cls conn
859 * @stats: pointer to iscsi_stats structure
860 *
861 * returns iscsi stats
862 */
863void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
864 struct iscsi_stats *stats)
865{
866 struct iscsi_conn *conn = cls_conn->dd_data;
99bc5d55
JSJ		 867 struct beiscsi_hba *phba = NULL;
868
869 phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
870 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
871 "BS_%d : In beiscsi_conn_get_stats\n");
6733b39a 872
6733b39a
JK		 873 stats->txdata_octets = conn->txdata_octets;
874 stats->rxdata_octets = conn->rxdata_octets;
875 stats->dataout_pdus = conn->dataout_pdus_cnt;
876 stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
877 stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
878 stats->datain_pdus = conn->datain_pdus_cnt;
879 stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
880 stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
881 stats->r2t_pdus = conn->r2t_pdus_cnt;
882 stats->digest_err = 0;
883 stats->timeout_err = 0;
884 stats->custom_length = 0;
885 strcpy(stats->custom[0].desc, "eh_abort_cnt");
886 stats->custom[0].value = conn->eh_abort_cnt;
887}
888
889/**
890 * beiscsi_set_params_for_offld - get the parameters for offload
891 * @beiscsi_conn: pointer to beiscsi_conn
892 * @params: pointer to offload_params structure
893 */
894static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
895 struct beiscsi_offload_params *params)
896{
897 struct iscsi_conn *conn = beiscsi_conn->conn;
898 struct iscsi_session *session = conn->session;
899
900 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
901 params, session->max_burst);
902 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
903 max_send_data_segment_length, params,
904 conn->max_xmit_dlength);
905 AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
906 params, session->first_burst);
907 AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
908 session->erl);
909 AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
910 conn->datadgst_en);
911 AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
912 conn->hdrdgst_en);
913 AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
914 session->initial_r2t_en);
915 AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
916 session->imm_data_en);
acb9693c
JSJ		 917 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
918 data_seq_inorder, params,
919 session->dataseq_inorder_en);
920 AMAP_SET_BITS(struct amap_beiscsi_offload_params,
921 pdu_seq_inorder, params,
922 session->pdu_inorder_en);
923 AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_r2t, params,
924 session->max_r2t);
6733b39a
JK		 925 AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
926 (conn->exp_statsn - 1));
927}
928
929/**
930 * beiscsi_conn_start - offload of session to chip
931 * @cls_conn: pointer to beiscsi_conn
932 */
933int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
934{
935 struct iscsi_conn *conn = cls_conn->dd_data;
936 struct beiscsi_conn *beiscsi_conn = conn->dd_data;
937 struct beiscsi_endpoint *beiscsi_ep;
938 struct beiscsi_offload_params params;
6733b39a 939
99bc5d55
JSJ		 940 beiscsi_log(beiscsi_conn->phba, KERN_INFO,
941 BEISCSI_LOG_CONFIG,
942 "BS_%d : In beiscsi_conn_start\n");
943
6733b39a
JK		 944 memset(&params, 0, sizeof(struct beiscsi_offload_params));
945 beiscsi_ep = beiscsi_conn->ep;
946 if (!beiscsi_ep)
99bc5d55
JSJ		 947 beiscsi_log(beiscsi_conn->phba, KERN_ERR,
948 BEISCSI_LOG_CONFIG,
949 "BS_%d : In beiscsi_conn_start , no beiscsi_ep\n");
6733b39a 950
6733b39a
JK		 951 beiscsi_conn->login_in_progress = 0;
952 beiscsi_set_params_for_offld(beiscsi_conn, &params);
953 beiscsi_offload_connection(beiscsi_conn, &params);
954 iscsi_conn_start(cls_conn);
955 return 0;
956}
957
958/**
959 * beiscsi_get_cid - Allocate a cid
960 * @phba: The phba instance
961 */
962static int beiscsi_get_cid(struct beiscsi_hba *phba)
963{
964 unsigned short cid = 0xFFFF;
965
966 if (!phba->avlbl_cids)
967 return cid;
968
969 cid = phba->cid_array[phba->cid_alloc++];
970 if (phba->cid_alloc == phba->params.cxns_per_ctrl)
971 phba->cid_alloc = 0;
972 phba->avlbl_cids--;
973 return cid;
974}
975
fa95d206
MC		 976/**
977 * beiscsi_put_cid - Free the cid
978 * @phba: The phba for which the cid is being freed
979 * @cid: The cid to free
980 */
981static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
982{
983 phba->avlbl_cids++;
984 phba->cid_array[phba->cid_free++] = cid;
985 if (phba->cid_free == phba->params.cxns_per_ctrl)
986 phba->cid_free = 0;
987}
988
989/**
990 * beiscsi_free_ep - free endpoint
991 * @ep: pointer to iscsi endpoint structure
992 */
993static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
994{
995 struct beiscsi_hba *phba = beiscsi_ep->phba;
43f388b0 996 struct beiscsi_conn *beiscsi_conn;
fa95d206
MC		 997
998 beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
999 beiscsi_ep->phba = NULL;
a7909b39
JK		 1000 phba->ep_array[BE_GET_CRI_FROM_CID
1001 (beiscsi_ep->ep_cid)] = NULL;
43f388b0
JK		 1002
1003 /**
1004 * Check if any connection resource allocated by driver
1005 * is to be freed.This case occurs when target redirection
1006 * or connection retry is done.
1007 **/
1008 if (!beiscsi_ep->conn)
1009 return;
1010
1011 beiscsi_conn = beiscsi_ep->conn;
1012 if (beiscsi_conn->login_in_progress) {
4a4a11b9
JK		 1013 beiscsi_free_mgmt_task_handles(beiscsi_conn,
1014 beiscsi_conn->task);
43f388b0
JK		 1015 beiscsi_conn->login_in_progress = 0;
1016 }
fa95d206
MC		 1017}
1018
6733b39a
JK		 1019/**
1020 * beiscsi_open_conn - Ask FW to open a TCP connection
1021 * @ep: endpoint to be used
1022 * @src_addr: The source IP address
1023 * @dst_addr: The Destination IP address
1024 *
1025 * Asks the FW to open a TCP connection
1026 */
1027static int beiscsi_open_conn(struct iscsi_endpoint *ep,
1028 struct sockaddr *src_addr,
1029 struct sockaddr *dst_addr, int non_blocking)
1030{
1031 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1032 struct beiscsi_hba *phba = beiscsi_ep->phba;
756d29c8 1033 struct tcp_connect_and_offload_out *ptcpcnct_out;
3cbb7a74 1034 struct be_dma_mem nonemb_cmd;
e175defe 1035 unsigned int tag;
d3ad2bb3 1036 int ret = -ENOMEM;
6733b39a 1037
99bc5d55
JSJ		 1038 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1039 "BS_%d : In beiscsi_open_conn\n");
1040
6733b39a
JK		 1041 beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
1042 if (beiscsi_ep->ep_cid == 0xFFFF) {
99bc5d55
JSJ		 1043 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1044 "BS_%d : No free cid available\n");
6733b39a
JK		 1045 return ret;
1046 }
99bc5d55
JSJ		 1047
1048 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1049 "BS_%d : In beiscsi_open_conn, ep_cid=%d\n",
1050 beiscsi_ep->ep_cid);
1051
a7909b39
JK		 1052 phba->ep_array[BE_GET_CRI_FROM_CID
1053 (beiscsi_ep->ep_cid)] = ep;
6733b39a
JK		 1054
1055 beiscsi_ep->cid_vld = 0;
3cbb7a74
JK		 1056 nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
1057 sizeof(struct tcp_connect_and_offload_in),
1058 &nonemb_cmd.dma);
1059 if (nonemb_cmd.va == NULL) {
99bc5d55
JSJ		 1060
1061 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1062 "BS_%d : Failed to allocate memory for"
1063 " mgmt_open_connection\n");
1064
a7909b39 1065 beiscsi_free_ep(beiscsi_ep);
3cbb7a74
JK		 1066 return -ENOMEM;
1067 }
1068 nonemb_cmd.size = sizeof(struct tcp_connect_and_offload_in);
1069 memset(nonemb_cmd.va, 0, nonemb_cmd.size);
1070 tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
1e234bbb 1071 if (tag <= 0) {
99bc5d55
JSJ		 1072 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1073 "BS_%d : mgmt_open_connection Failed for cid=%d\n",
1074 beiscsi_ep->ep_cid);
1075
3cbb7a74
JK		 1076 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1077 nonemb_cmd.va, nonemb_cmd.dma);
a7909b39 1078 beiscsi_free_ep(beiscsi_ep);
1f92638f 1079 return -EAGAIN;
756d29c8 1080 }
e175defe 1081
1e234bbb 1082 ret = beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd.va);
e175defe 1083 if (ret) {
99bc5d55
JSJ		 1084 beiscsi_log(phba, KERN_ERR,
1085 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
e175defe 1086 "BS_%d : mgmt_open_connection Failed");
99bc5d55 1087
3cbb7a74
JK		 1088 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1089 nonemb_cmd.va, nonemb_cmd.dma);
a7909b39
JK		 1090 beiscsi_free_ep(beiscsi_ep);
1091 return -EBUSY;
756d29c8 1092 }
e175defe 1093
1e234bbb 1094 ptcpcnct_out = (struct tcp_connect_and_offload_out *)nonemb_cmd.va;
e175defe
JSJ		 1095 beiscsi_ep = ep->dd_data;
1096 beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
1097 beiscsi_ep->cid_vld = 1;
1098 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1099 "BS_%d : mgmt_open_connection Success\n");
1100
3cbb7a74
JK		 1101 pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
1102 nonemb_cmd.va, nonemb_cmd.dma);
756d29c8 1103 return 0;
6733b39a
JK		 1104}
1105
1106/**
1107 * beiscsi_ep_connect - Ask chip to create TCP Conn
1108 * @scsi_host: Pointer to scsi_host structure
1109 * @dst_addr: The IP address of Target
1110 * @non_blocking: blocking or non-blocking call
1111 *
1112 * This routines first asks chip to create a connection and then allocates an EP
1113 */
1114struct iscsi_endpoint *
1115beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
1116 int non_blocking)
1117{
1118 struct beiscsi_hba *phba;
1119 struct beiscsi_endpoint *beiscsi_ep;
1120 struct iscsi_endpoint *ep;
1121 int ret;
1122
6733b39a
JK		 1123 if (shost)
1124 phba = iscsi_host_priv(shost);
1125 else {
1126 ret = -ENXIO;
99bc5d55
JSJ		 1127 printk(KERN_ERR
1128 "beiscsi_ep_connect shost is NULL\n");
6733b39a
JK		 1129 return ERR_PTR(ret);
1130 }
bfead3b2 1131
cf6e3c64
JK		 1132 if (beiscsi_error(phba)) {
1133 ret = -EIO;
1134 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
1135 "BS_%d : The FW state Not Stable!!!\n");
1136 return ERR_PTR(ret);
1137 }
1138
5dc1c416 1139 if (phba->state != BE_ADAPTER_UP) {
bfead3b2 1140 ret = -EBUSY;
8359c79b
JSJ		 1141 beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
1142 "BS_%d : The Adapter Port state is Down!!!\n");
bfead3b2
JK		 1143 return ERR_PTR(ret);
1144 }
1145
6733b39a
JK		 1146 ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
1147 if (!ep) {
1148 ret = -ENOMEM;
1149 return ERR_PTR(ret);
1150 }
1151
1152 beiscsi_ep = ep->dd_data;
1153 beiscsi_ep->phba = phba;
c2462288 1154 beiscsi_ep->openiscsi_ep = ep;
f5ed7bd4
JK		 1155 ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking);
1156 if (ret) {
99bc5d55
JSJ		 1157 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
1158 "BS_%d : Failed in beiscsi_open_conn\n");
6733b39a
JK		 1159 goto free_ep;
1160 }
1161
1162 return ep;
1163
1164free_ep:
fa95d206 1165 iscsi_destroy_endpoint(ep);
6733b39a
JK		 1166 return ERR_PTR(ret);
1167}
1168
1169/**
1170 * beiscsi_ep_poll - Poll to see if connection is established
1171 * @ep: endpoint to be used
1172 * @timeout_ms: timeout specified in millisecs
1173 *
1174 * Poll to see if TCP connection established
1175 */
1176int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
1177{
1178 struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
1179
99bc5d55
JSJ		 1180 beiscsi_log(beiscsi_ep->phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1181 "BS_%d : In beiscsi_ep_poll\n");
1182
6733b39a
JK		 1183 if (beiscsi_ep->cid_vld == 1)
1184 return 1;
1185 else
1186 return 0;
1187}
1188
1189/**
1190 * beiscsi_close_conn - Upload the connection
1191 * @ep: The iscsi endpoint
1192 * @flag: The type of connection closure
1193 */
c2462288 1194static int beiscsi_close_conn(struct beiscsi_endpoint *beiscsi_ep, int flag)
6733b39a
JK		 1195{
1196 int ret = 0;
756d29c8 1197 unsigned int tag;
6733b39a
JK		 1198 struct beiscsi_hba *phba = beiscsi_ep->phba;
1199
756d29c8
JK		 1200 tag = mgmt_upload_connection(phba, beiscsi_ep->ep_cid, flag);
1201 if (!tag) {
99bc5d55
JSJ		 1202 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1203 "BS_%d : upload failed for cid 0x%x\n",
1204 beiscsi_ep->ep_cid);
1205
d3ad2bb3 1206 ret = -EAGAIN;
6733b39a 1207 }
e175defe
JSJ		 1208
1209 ret = beiscsi_mccq_compl(phba, tag, NULL, NULL);
6733b39a
JK		 1210 return ret;
1211}
1212
6733b39a
JK		 1213/**
1214 * beiscsi_unbind_conn_to_cid - Unbind the beiscsi_conn from phba conn table
1215 * @phba: The phba instance
1216 * @cid: The cid to free
1217 */
1218static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
1219 unsigned int cid)
1220{
a7909b39
JK		 1221 uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
1222
1223 if (phba->conn_table[cri_index])
1224 phba->conn_table[cri_index] = NULL;
6733b39a 1225 else {
99bc5d55
JSJ		 1226 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1227 "BS_%d : Connection table Not occupied.\n");
6733b39a
JK		 1228 return -EINVAL;
1229 }
1230 return 0;
1231}
1232
1233/**
fa95d206
MC		 1234 * beiscsi_ep_disconnect - Tears down the TCP connection
1235 * @ep: endpoint to be used
1236 *
1237 * Tears down the TCP connection
6733b39a 1238 */
fa95d206 1239void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
6733b39a 1240{
fa95d206 1241 struct beiscsi_conn *beiscsi_conn;
6733b39a 1242 struct beiscsi_endpoint *beiscsi_ep;
fa95d206 1243 struct beiscsi_hba *phba;
756d29c8 1244 unsigned int tag;
0a513dd8 1245 uint8_t mgmt_invalidate_flag, tcp_upload_flag;
6733b39a
JK		 1246 unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
1247
fa95d206
MC		 1248 beiscsi_ep = ep->dd_data;
1249 phba = beiscsi_ep->phba;
99bc5d55
JSJ		 1250 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
1251 "BS_%d : In beiscsi_ep_disconnect for ep_cid = %d\n",
1252 beiscsi_ep->ep_cid);
fa95d206 1253
0a513dd8
JSJ		 1254 if (beiscsi_ep->conn) {
1255 beiscsi_conn = beiscsi_ep->conn;
1256 iscsi_suspend_queue(beiscsi_conn->conn);
1257 mgmt_invalidate_flag = ~BEISCSI_NO_RST_ISSUE;
1258 tcp_upload_flag = CONNECTION_UPLOAD_GRACEFUL;
1259 } else {
1260 mgmt_invalidate_flag = BEISCSI_NO_RST_ISSUE;
1261 tcp_upload_flag = CONNECTION_UPLOAD_ABORT;
6733b39a 1262 }
fa95d206 1263
756d29c8 1264 tag = mgmt_invalidate_connection(phba, beiscsi_ep,
0a513dd8
JSJ		 1265 beiscsi_ep->ep_cid,
1266 mgmt_invalidate_flag,
1267 savecfg_flag);
756d29c8 1268 if (!tag) {
99bc5d55 1269 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
0a513dd8 1270 "BS_%d : mgmt_invalidate_connection Failed for cid=%d\n",
99bc5d55 1271 beiscsi_ep->ep_cid);
6733b39a 1272 }
fa95d206 1273
e175defe 1274 beiscsi_mccq_compl(phba, tag, NULL, NULL);
0a513dd8 1275 beiscsi_close_conn(beiscsi_ep, tcp_upload_flag);
c2462288 1276 beiscsi_free_ep(beiscsi_ep);
6733b39a 1277 beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
fa95d206 1278 iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
6733b39a 1279}
3128c6c7 1280
587a1f16 1281umode_t be2iscsi_attr_is_visible(int param_type, int param)
3128c6c7
MC		 1282{
1283 switch (param_type) {
0e43895e
MC		 1284 case ISCSI_NET_PARAM:
1285 switch (param) {
1286 case ISCSI_NET_PARAM_IFACE_ENABLE:
1287 case ISCSI_NET_PARAM_IPV4_ADDR:
1288 case ISCSI_NET_PARAM_IPV4_SUBNET:
1289 case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
1290 case ISCSI_NET_PARAM_IPV4_GW:
1291 case ISCSI_NET_PARAM_IPV6_ADDR:
6f72238e
JSJ		 1292 case ISCSI_NET_PARAM_VLAN_ID:
1293 case ISCSI_NET_PARAM_VLAN_PRIORITY:
1294 case ISCSI_NET_PARAM_VLAN_ENABLED:
0e43895e
MC		 1295 return S_IRUGO;
1296 default:
1297 return 0;
1298 }
f27fb2ef
MC		 1299 case ISCSI_HOST_PARAM:
1300 switch (param) {
1301 case ISCSI_HOST_PARAM_HWADDRESS:
c62eef0d
JSJ		 1302 case ISCSI_HOST_PARAM_INITIATOR_NAME:
1303 case ISCSI_HOST_PARAM_PORT_STATE:
1304 case ISCSI_HOST_PARAM_PORT_SPEED:
f27fb2ef
MC		 1305 return S_IRUGO;
1306 default:
1307 return 0;
1308 }
3128c6c7
MC		 1309 case ISCSI_PARAM:
1310 switch (param) {
1311 case ISCSI_PARAM_MAX_RECV_DLENGTH:
1312 case ISCSI_PARAM_MAX_XMIT_DLENGTH:
1313 case ISCSI_PARAM_HDRDGST_EN:
1314 case ISCSI_PARAM_DATADGST_EN:
1315 case ISCSI_PARAM_CONN_ADDRESS:
1316 case ISCSI_PARAM_CONN_PORT:
1317 case ISCSI_PARAM_EXP_STATSN:
1318 case ISCSI_PARAM_PERSISTENT_ADDRESS:
1319 case ISCSI_PARAM_PERSISTENT_PORT:
1320 case ISCSI_PARAM_PING_TMO:
1321 case ISCSI_PARAM_RECV_TMO:
1d063c17
MC		 1322 case ISCSI_PARAM_INITIAL_R2T_EN:
1323 case ISCSI_PARAM_MAX_R2T:
1324 case ISCSI_PARAM_IMM_DATA_EN:
1325 case ISCSI_PARAM_FIRST_BURST:
1326 case ISCSI_PARAM_MAX_BURST:
1327 case ISCSI_PARAM_PDU_INORDER_EN:
1328 case ISCSI_PARAM_DATASEQ_INORDER_EN:
1329 case ISCSI_PARAM_ERL:
1330 case ISCSI_PARAM_TARGET_NAME:
1331 case ISCSI_PARAM_TPGT:
1332 case ISCSI_PARAM_USERNAME:
1333 case ISCSI_PARAM_PASSWORD:
1334 case ISCSI_PARAM_USERNAME_IN:
1335 case ISCSI_PARAM_PASSWORD_IN:
1336 case ISCSI_PARAM_FAST_ABORT:
1337 case ISCSI_PARAM_ABORT_TMO:
1338 case ISCSI_PARAM_LU_RESET_TMO:
1339 case ISCSI_PARAM_IFACE_NAME:
1340 case ISCSI_PARAM_INITIATOR_NAME:
3128c6c7
MC		 1341 return S_IRUGO;
1342 default:
1343 return 0;
1344 }
1345 }
1346
1347 return 0;
1348}
Linux 6.x block layer and io_uring tree(s)