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6733b39a | 1 | /** |
255fa9a3 | 2 | * Copyright (C) 2005 - 2011 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 | ||
32 | extern 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 | */ | |
40 | struct 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 JK |
52 | |
53 | SE_DEBUG(DBG_LVL_8, "In beiscsi_session_create\n"); | |
54 | ||
55 | if (!ep) { | |
457ff3b7 | 56 | SE_DEBUG(DBG_LVL_1, "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; | |
62 | if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) { | |
63 | shost_printk(KERN_ERR, shost, "Cannot handle %d cmds." | |
64 | "Max cmds per session supported is %d. Using %d. " | |
65 | "\n", cmds_max, | |
66 | beiscsi_ep->phba->params.wrbs_per_cxn, | |
67 | beiscsi_ep->phba->params.wrbs_per_cxn); | |
68 | cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn; | |
69 | } | |
70 | ||
bfead3b2 JK |
71 | cls_session = iscsi_session_setup(&beiscsi_iscsi_transport, |
72 | shost, cmds_max, | |
73 | sizeof(*beiscsi_sess), | |
74 | sizeof(*io_task), | |
75 | initial_cmdsn, ISCSI_MAX_TARGET); | |
6733b39a JK |
76 | if (!cls_session) |
77 | return NULL; | |
78 | sess = cls_session->dd_data; | |
2afc95bf JK |
79 | beiscsi_sess = sess->dd_data; |
80 | beiscsi_sess->bhs_pool = pci_pool_create("beiscsi_bhs_pool", | |
81 | phba->pcidev, | |
82 | sizeof(struct be_cmd_bhs), | |
83 | 64, 0); | |
84 | if (!beiscsi_sess->bhs_pool) | |
85 | goto destroy_sess; | |
6733b39a | 86 | |
6733b39a | 87 | return cls_session; |
2afc95bf JK |
88 | destroy_sess: |
89 | iscsi_session_teardown(cls_session); | |
90 | return NULL; | |
6733b39a JK |
91 | } |
92 | ||
93 | /** | |
94 | * beiscsi_session_destroy - destroys iscsi session | |
95 | * @cls_session: pointer to iscsi cls session | |
96 | * | |
97 | * Destroys iSCSI session instance and releases | |
98 | * resources allocated for it. | |
99 | */ | |
100 | void beiscsi_session_destroy(struct iscsi_cls_session *cls_session) | |
101 | { | |
6733b39a | 102 | struct iscsi_session *sess = cls_session->dd_data; |
2afc95bf | 103 | struct beiscsi_session *beiscsi_sess = sess->dd_data; |
6733b39a | 104 | |
756d29c8 | 105 | SE_DEBUG(DBG_LVL_8, "In beiscsi_session_destroy\n"); |
2afc95bf | 106 | pci_pool_destroy(beiscsi_sess->bhs_pool); |
6733b39a JK |
107 | iscsi_session_teardown(cls_session); |
108 | } | |
109 | ||
110 | /** | |
111 | * beiscsi_conn_create - create an instance of iscsi connection | |
112 | * @cls_session: ptr to iscsi_cls_session | |
113 | * @cid: iscsi cid | |
114 | */ | |
115 | struct iscsi_cls_conn * | |
116 | beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid) | |
117 | { | |
118 | struct beiscsi_hba *phba; | |
119 | struct Scsi_Host *shost; | |
120 | struct iscsi_cls_conn *cls_conn; | |
121 | struct beiscsi_conn *beiscsi_conn; | |
122 | struct iscsi_conn *conn; | |
2afc95bf JK |
123 | struct iscsi_session *sess; |
124 | struct beiscsi_session *beiscsi_sess; | |
6733b39a JK |
125 | |
126 | SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_create ,cid" | |
127 | "from iscsi layer=%d\n", cid); | |
128 | shost = iscsi_session_to_shost(cls_session); | |
129 | phba = iscsi_host_priv(shost); | |
130 | ||
131 | cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid); | |
132 | if (!cls_conn) | |
133 | return NULL; | |
134 | ||
135 | conn = cls_conn->dd_data; | |
136 | beiscsi_conn = conn->dd_data; | |
137 | beiscsi_conn->ep = NULL; | |
138 | beiscsi_conn->phba = phba; | |
139 | beiscsi_conn->conn = conn; | |
2afc95bf JK |
140 | sess = cls_session->dd_data; |
141 | beiscsi_sess = sess->dd_data; | |
142 | beiscsi_conn->beiscsi_sess = beiscsi_sess; | |
6733b39a JK |
143 | return cls_conn; |
144 | } | |
145 | ||
146 | /** | |
147 | * beiscsi_bindconn_cid - Bind the beiscsi_conn with phba connection table | |
148 | * @beiscsi_conn: The pointer to beiscsi_conn structure | |
149 | * @phba: The phba instance | |
150 | * @cid: The cid to free | |
151 | */ | |
152 | static int beiscsi_bindconn_cid(struct beiscsi_hba *phba, | |
153 | struct beiscsi_conn *beiscsi_conn, | |
154 | unsigned int cid) | |
155 | { | |
156 | if (phba->conn_table[cid]) { | |
157 | SE_DEBUG(DBG_LVL_1, | |
158 | "Connection table already occupied. Detected clash\n"); | |
159 | return -EINVAL; | |
160 | } else { | |
457ff3b7 | 161 | SE_DEBUG(DBG_LVL_8, "phba->conn_table[%d]=%p(beiscsi_conn)\n", |
6733b39a JK |
162 | cid, beiscsi_conn); |
163 | phba->conn_table[cid] = beiscsi_conn; | |
164 | } | |
165 | return 0; | |
166 | } | |
167 | ||
168 | /** | |
169 | * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection | |
170 | * @cls_session: pointer to iscsi cls session | |
171 | * @cls_conn: pointer to iscsi cls conn | |
172 | * @transport_fd: EP handle(64 bit) | |
173 | * | |
174 | * This function binds the TCP Conn with iSCSI Connection and Session. | |
175 | */ | |
176 | int beiscsi_conn_bind(struct iscsi_cls_session *cls_session, | |
177 | struct iscsi_cls_conn *cls_conn, | |
178 | u64 transport_fd, int is_leading) | |
179 | { | |
180 | struct iscsi_conn *conn = cls_conn->dd_data; | |
181 | struct beiscsi_conn *beiscsi_conn = conn->dd_data; | |
3093b048 MC |
182 | struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); |
183 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
6733b39a JK |
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, | |
457ff3b7 | 199 | "beiscsi_ep->hba=%p not equal to phba=%p\n", |
6733b39a JK |
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; | |
457ff3b7 | 207 | SE_DEBUG(DBG_LVL_8, "beiscsi_conn=%p conn=%p ep_cid=%d\n", |
6733b39a JK |
208 | beiscsi_conn, conn, beiscsi_ep->ep_cid); |
209 | return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid); | |
210 | } | |
211 | ||
0e43895e MC |
212 | static int beiscsi_create_ipv4_iface(struct beiscsi_hba *phba) |
213 | { | |
214 | if (phba->ipv4_iface) | |
215 | return 0; | |
216 | ||
217 | phba->ipv4_iface = iscsi_create_iface(phba->shost, | |
218 | &beiscsi_iscsi_transport, | |
219 | ISCSI_IFACE_TYPE_IPV4, | |
220 | 0, 0); | |
221 | if (!phba->ipv4_iface) { | |
222 | shost_printk(KERN_ERR, phba->shost, "Could not " | |
223 | "create default IPv4 address.\n"); | |
224 | return -ENODEV; | |
225 | } | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static int beiscsi_create_ipv6_iface(struct beiscsi_hba *phba) | |
231 | { | |
232 | if (phba->ipv6_iface) | |
233 | return 0; | |
234 | ||
235 | phba->ipv6_iface = iscsi_create_iface(phba->shost, | |
236 | &beiscsi_iscsi_transport, | |
237 | ISCSI_IFACE_TYPE_IPV6, | |
238 | 0, 0); | |
239 | if (!phba->ipv6_iface) { | |
240 | shost_printk(KERN_ERR, phba->shost, "Could not " | |
241 | "create default IPv6 address.\n"); | |
242 | return -ENODEV; | |
243 | } | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | void beiscsi_create_def_ifaces(struct beiscsi_hba *phba) | |
249 | { | |
250 | struct be_cmd_get_if_info_resp if_info; | |
251 | ||
252 | if (!mgmt_get_if_info(phba, BE2_IPV4, &if_info)) | |
253 | beiscsi_create_ipv4_iface(phba); | |
254 | ||
255 | if (!mgmt_get_if_info(phba, BE2_IPV6, &if_info)) | |
256 | beiscsi_create_ipv6_iface(phba); | |
257 | } | |
258 | ||
259 | void beiscsi_destroy_def_ifaces(struct beiscsi_hba *phba) | |
260 | { | |
261 | if (phba->ipv6_iface) | |
262 | iscsi_destroy_iface(phba->ipv6_iface); | |
263 | if (phba->ipv4_iface) | |
264 | iscsi_destroy_iface(phba->ipv4_iface); | |
265 | } | |
266 | ||
267 | static int | |
268 | beiscsi_set_static_ip(struct Scsi_Host *shost, | |
269 | struct iscsi_iface_param_info *iface_param, | |
270 | void *data, uint32_t dt_len) | |
271 | { | |
272 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
273 | struct iscsi_iface_param_info *iface_ip = NULL; | |
274 | struct iscsi_iface_param_info *iface_subnet = NULL; | |
275 | struct nlattr *nla; | |
276 | int ret; | |
277 | ||
278 | ||
279 | switch (iface_param->param) { | |
280 | case ISCSI_NET_PARAM_IPV4_BOOTPROTO: | |
281 | nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR); | |
282 | if (nla) | |
283 | iface_ip = nla_data(nla); | |
284 | ||
285 | nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET); | |
286 | if (nla) | |
287 | iface_subnet = nla_data(nla); | |
288 | break; | |
289 | case ISCSI_NET_PARAM_IPV4_ADDR: | |
290 | iface_ip = iface_param; | |
291 | nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_SUBNET); | |
292 | if (nla) | |
293 | iface_subnet = nla_data(nla); | |
294 | break; | |
295 | case ISCSI_NET_PARAM_IPV4_SUBNET: | |
296 | iface_subnet = iface_param; | |
297 | nla = nla_find(data, dt_len, ISCSI_NET_PARAM_IPV4_ADDR); | |
298 | if (nla) | |
299 | iface_ip = nla_data(nla); | |
300 | break; | |
301 | default: | |
302 | shost_printk(KERN_ERR, shost, "Unsupported param %d\n", | |
303 | iface_param->param); | |
304 | } | |
305 | ||
306 | if (!iface_ip || !iface_subnet) { | |
307 | shost_printk(KERN_ERR, shost, "IP and Subnet Mask required\n"); | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
311 | ret = mgmt_set_ip(phba, iface_ip, iface_subnet, | |
312 | ISCSI_BOOTPROTO_STATIC); | |
313 | ||
314 | return ret; | |
315 | } | |
316 | ||
317 | static int | |
318 | beiscsi_set_ipv4(struct Scsi_Host *shost, | |
319 | struct iscsi_iface_param_info *iface_param, | |
320 | void *data, uint32_t dt_len) | |
321 | { | |
322 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
323 | int ret = 0; | |
324 | ||
325 | /* Check the param */ | |
326 | switch (iface_param->param) { | |
327 | case ISCSI_NET_PARAM_IPV4_GW: | |
328 | ret = mgmt_set_gateway(phba, iface_param); | |
329 | break; | |
330 | case ISCSI_NET_PARAM_IPV4_BOOTPROTO: | |
331 | if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) | |
332 | ret = mgmt_set_ip(phba, iface_param, | |
333 | NULL, ISCSI_BOOTPROTO_DHCP); | |
334 | else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) | |
335 | ret = beiscsi_set_static_ip(shost, iface_param, | |
336 | data, dt_len); | |
337 | else | |
338 | shost_printk(KERN_ERR, shost, "Invalid BOOTPROTO: %d\n", | |
339 | iface_param->value[0]); | |
340 | break; | |
341 | case ISCSI_NET_PARAM_IFACE_ENABLE: | |
342 | if (iface_param->value[0] == ISCSI_IFACE_ENABLE) | |
343 | ret = beiscsi_create_ipv4_iface(phba); | |
344 | else | |
345 | iscsi_destroy_iface(phba->ipv4_iface); | |
346 | break; | |
347 | case ISCSI_NET_PARAM_IPV4_SUBNET: | |
348 | case ISCSI_NET_PARAM_IPV4_ADDR: | |
349 | ret = beiscsi_set_static_ip(shost, iface_param, | |
350 | data, dt_len); | |
351 | break; | |
352 | default: | |
353 | shost_printk(KERN_ERR, shost, "Param %d not supported\n", | |
354 | iface_param->param); | |
355 | } | |
356 | ||
357 | return ret; | |
358 | } | |
359 | ||
360 | static int | |
361 | beiscsi_set_ipv6(struct Scsi_Host *shost, | |
362 | struct iscsi_iface_param_info *iface_param, | |
363 | void *data, uint32_t dt_len) | |
364 | { | |
365 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
366 | int ret = 0; | |
367 | ||
368 | switch (iface_param->param) { | |
369 | case ISCSI_NET_PARAM_IFACE_ENABLE: | |
370 | if (iface_param->value[0] == ISCSI_IFACE_ENABLE) | |
371 | ret = beiscsi_create_ipv6_iface(phba); | |
372 | else { | |
373 | iscsi_destroy_iface(phba->ipv6_iface); | |
374 | ret = 0; | |
375 | } | |
376 | break; | |
377 | case ISCSI_NET_PARAM_IPV6_ADDR: | |
378 | ret = mgmt_set_ip(phba, iface_param, NULL, | |
379 | ISCSI_BOOTPROTO_STATIC); | |
380 | break; | |
381 | default: | |
382 | shost_printk(KERN_ERR, shost, "Param %d not supported\n", | |
383 | iface_param->param); | |
384 | } | |
385 | ||
386 | return ret; | |
387 | } | |
388 | ||
389 | int be2iscsi_iface_set_param(struct Scsi_Host *shost, | |
390 | void *data, uint32_t dt_len) | |
391 | { | |
392 | struct iscsi_iface_param_info *iface_param = NULL; | |
393 | struct nlattr *attrib; | |
394 | uint32_t rm_len = dt_len; | |
395 | int ret = 0 ; | |
396 | ||
397 | nla_for_each_attr(attrib, data, dt_len, rm_len) { | |
398 | iface_param = nla_data(attrib); | |
399 | ||
400 | if (iface_param->param_type != ISCSI_NET_PARAM) | |
401 | continue; | |
402 | ||
403 | /* | |
404 | * BE2ISCSI only supports 1 interface | |
405 | */ | |
406 | if (iface_param->iface_num) { | |
407 | shost_printk(KERN_ERR, shost, "Invalid iface_num %d." | |
408 | "Only iface_num 0 is supported.\n", | |
409 | iface_param->iface_num); | |
410 | return -EINVAL; | |
411 | } | |
412 | ||
413 | switch (iface_param->iface_type) { | |
414 | case ISCSI_IFACE_TYPE_IPV4: | |
415 | ret = beiscsi_set_ipv4(shost, iface_param, | |
416 | data, dt_len); | |
417 | break; | |
418 | case ISCSI_IFACE_TYPE_IPV6: | |
419 | ret = beiscsi_set_ipv6(shost, iface_param, | |
420 | data, dt_len); | |
421 | break; | |
422 | default: | |
423 | shost_printk(KERN_ERR, shost, | |
424 | "Invalid iface type :%d passed\n", | |
425 | iface_param->iface_type); | |
426 | break; | |
427 | } | |
428 | ||
429 | if (ret) | |
430 | return ret; | |
431 | } | |
432 | ||
433 | return ret; | |
434 | } | |
435 | ||
436 | static int be2iscsi_get_if_param(struct beiscsi_hba *phba, | |
437 | struct iscsi_iface *iface, int param, | |
438 | char *buf) | |
439 | { | |
440 | struct be_cmd_get_if_info_resp if_info; | |
441 | int len, ip_type = BE2_IPV4; | |
442 | ||
443 | memset(&if_info, 0, sizeof(if_info)); | |
444 | ||
445 | if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) | |
446 | ip_type = BE2_IPV6; | |
447 | ||
448 | len = mgmt_get_if_info(phba, ip_type, &if_info); | |
449 | if (len) | |
450 | return len; | |
451 | ||
452 | switch (param) { | |
453 | case ISCSI_NET_PARAM_IPV4_ADDR: | |
454 | len = sprintf(buf, "%pI4\n", &if_info.ip_addr.addr); | |
455 | break; | |
456 | case ISCSI_NET_PARAM_IPV6_ADDR: | |
457 | len = sprintf(buf, "%pI6\n", &if_info.ip_addr.addr); | |
458 | break; | |
459 | case ISCSI_NET_PARAM_IPV4_BOOTPROTO: | |
460 | if (!if_info.dhcp_state) | |
461 | len = sprintf(buf, "static"); | |
462 | else | |
463 | len = sprintf(buf, "dhcp"); | |
464 | break; | |
465 | case ISCSI_NET_PARAM_IPV4_SUBNET: | |
466 | len = sprintf(buf, "%pI4\n", &if_info.ip_addr.subnet_mask); | |
467 | break; | |
468 | default: | |
469 | WARN_ON(1); | |
470 | } | |
471 | ||
472 | return len; | |
473 | } | |
474 | ||
475 | int be2iscsi_iface_get_param(struct iscsi_iface *iface, | |
476 | enum iscsi_param_type param_type, | |
477 | int param, char *buf) | |
478 | { | |
479 | struct Scsi_Host *shost = iscsi_iface_to_shost(iface); | |
480 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
481 | struct be_cmd_get_def_gateway_resp gateway; | |
482 | int len = -ENOSYS; | |
483 | ||
484 | switch (param) { | |
485 | case ISCSI_NET_PARAM_IPV4_ADDR: | |
486 | case ISCSI_NET_PARAM_IPV4_SUBNET: | |
487 | case ISCSI_NET_PARAM_IPV4_BOOTPROTO: | |
488 | case ISCSI_NET_PARAM_IPV6_ADDR: | |
489 | len = be2iscsi_get_if_param(phba, iface, param, buf); | |
490 | break; | |
491 | case ISCSI_NET_PARAM_IFACE_ENABLE: | |
492 | len = sprintf(buf, "enabled"); | |
493 | break; | |
494 | case ISCSI_NET_PARAM_IPV4_GW: | |
495 | memset(&gateway, 0, sizeof(gateway)); | |
496 | len = mgmt_get_gateway(phba, BE2_IPV4, &gateway); | |
497 | if (!len) | |
498 | len = sprintf(buf, "%pI4\n", &gateway.ip_addr.addr); | |
499 | break; | |
500 | default: | |
501 | len = -ENOSYS; | |
502 | } | |
503 | ||
504 | return len; | |
505 | } | |
506 | ||
6733b39a | 507 | /** |
c7f7fd5b MC |
508 | * beiscsi_ep_get_param - get the iscsi parameter |
509 | * @ep: pointer to iscsi ep | |
6733b39a JK |
510 | * @param: parameter type identifier |
511 | * @buf: buffer pointer | |
512 | * | |
513 | * returns iscsi parameter | |
514 | */ | |
c7f7fd5b | 515 | int beiscsi_ep_get_param(struct iscsi_endpoint *ep, |
6733b39a JK |
516 | enum iscsi_param param, char *buf) |
517 | { | |
c7f7fd5b | 518 | struct beiscsi_endpoint *beiscsi_ep = ep->dd_data; |
6733b39a JK |
519 | int len = 0; |
520 | ||
b5b9323b | 521 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_get_param, param= %d\n", param); |
6733b39a JK |
522 | |
523 | switch (param) { | |
524 | case ISCSI_PARAM_CONN_PORT: | |
525 | len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport); | |
526 | break; | |
527 | case ISCSI_PARAM_CONN_ADDRESS: | |
528 | if (beiscsi_ep->ip_type == BE2_IPV4) | |
529 | len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr); | |
530 | else | |
531 | len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr); | |
532 | break; | |
533 | default: | |
c7f7fd5b | 534 | return -ENOSYS; |
6733b39a JK |
535 | } |
536 | return len; | |
537 | } | |
538 | ||
539 | int beiscsi_set_param(struct iscsi_cls_conn *cls_conn, | |
540 | enum iscsi_param param, char *buf, int buflen) | |
541 | { | |
542 | struct iscsi_conn *conn = cls_conn->dd_data; | |
543 | struct iscsi_session *session = conn->session; | |
544 | int ret; | |
545 | ||
756d29c8 | 546 | SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_set_param, param= %d\n", param); |
6733b39a JK |
547 | ret = iscsi_set_param(cls_conn, param, buf, buflen); |
548 | if (ret) | |
549 | return ret; | |
550 | /* | |
551 | * If userspace tried to set the value to higher than we can | |
552 | * support override here. | |
553 | */ | |
554 | switch (param) { | |
555 | case ISCSI_PARAM_FIRST_BURST: | |
556 | if (session->first_burst > 8192) | |
557 | session->first_burst = 8192; | |
558 | break; | |
559 | case ISCSI_PARAM_MAX_RECV_DLENGTH: | |
560 | if (conn->max_recv_dlength > 65536) | |
561 | conn->max_recv_dlength = 65536; | |
562 | break; | |
563 | case ISCSI_PARAM_MAX_BURST: | |
230dceb4 JK |
564 | if (session->max_burst > 262144) |
565 | session->max_burst = 262144; | |
6733b39a | 566 | break; |
42f43c41 JK |
567 | case ISCSI_PARAM_MAX_XMIT_DLENGTH: |
568 | if ((conn->max_xmit_dlength > 65536) || | |
569 | (conn->max_xmit_dlength == 0)) | |
570 | conn->max_xmit_dlength = 65536; | |
6733b39a JK |
571 | default: |
572 | return 0; | |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
2177199d JSJ |
578 | /** |
579 | * beiscsi_get_initname - Read Initiator Name from flash | |
580 | * @buf: buffer bointer | |
581 | * @phba: The device priv structure instance | |
582 | * | |
583 | * returns number of bytes | |
584 | */ | |
585 | static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba) | |
586 | { | |
587 | int rc; | |
588 | unsigned int tag, wrb_num; | |
589 | unsigned short status, extd_status; | |
590 | struct be_mcc_wrb *wrb; | |
591 | struct be_cmd_hba_name *resp; | |
592 | struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; | |
593 | ||
594 | tag = be_cmd_get_initname(phba); | |
595 | if (!tag) { | |
596 | SE_DEBUG(DBG_LVL_1, "Getting Initiator Name Failed\n"); | |
597 | return -EBUSY; | |
598 | } else | |
599 | wait_event_interruptible(phba->ctrl.mcc_wait[tag], | |
600 | phba->ctrl.mcc_numtag[tag]); | |
601 | ||
602 | wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; | |
603 | extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; | |
604 | status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; | |
605 | ||
606 | if (status || extd_status) { | |
607 | SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with " | |
608 | "status = %d extd_status = %d\n", | |
609 | status, extd_status); | |
610 | free_mcc_tag(&phba->ctrl, tag); | |
611 | return -EAGAIN; | |
612 | } | |
613 | wrb = queue_get_wrb(mccq, wrb_num); | |
614 | free_mcc_tag(&phba->ctrl, tag); | |
615 | resp = embedded_payload(wrb); | |
616 | rc = sprintf(buf, "%s\n", resp->initiator_name); | |
617 | return rc; | |
618 | } | |
619 | ||
c62eef0d JSJ |
620 | /** |
621 | * beiscsi_get_port_state - Get the Port State | |
622 | * @shost : pointer to scsi_host structure | |
623 | * | |
624 | * returns number of bytes | |
625 | */ | |
626 | static void beiscsi_get_port_state(struct Scsi_Host *shost) | |
627 | { | |
628 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
629 | struct iscsi_cls_host *ihost = shost->shost_data; | |
630 | ||
631 | ihost->port_state = (phba->state == BE_ADAPTER_UP) ? | |
632 | ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN; | |
633 | } | |
634 | ||
635 | /** | |
636 | * beiscsi_get_port_speed - Get the Port Speed from Adapter | |
637 | * @shost : pointer to scsi_host structure | |
638 | * | |
639 | * returns Success/Failure | |
640 | */ | |
641 | static int beiscsi_get_port_speed(struct Scsi_Host *shost) | |
642 | { | |
643 | unsigned int tag, wrb_num; | |
644 | unsigned short status, extd_status; | |
645 | struct be_mcc_wrb *wrb; | |
646 | struct be_cmd_ntwk_link_status_resp *resp; | |
647 | struct beiscsi_hba *phba = iscsi_host_priv(shost); | |
648 | struct iscsi_cls_host *ihost = shost->shost_data; | |
649 | struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; | |
650 | ||
651 | tag = be_cmd_get_port_speed(phba); | |
652 | if (!tag) { | |
653 | SE_DEBUG(DBG_LVL_1, "Getting Port Speed Failed\n"); | |
654 | return -EBUSY; | |
655 | } else | |
656 | wait_event_interruptible(phba->ctrl.mcc_wait[tag], | |
657 | phba->ctrl.mcc_numtag[tag]); | |
658 | ||
659 | wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; | |
660 | extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; | |
661 | status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; | |
662 | ||
663 | if (status || extd_status) { | |
664 | SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with " | |
665 | "status = %d extd_status = %d\n", | |
666 | status, extd_status); | |
667 | free_mcc_tag(&phba->ctrl, tag); | |
668 | return -EAGAIN; | |
669 | } | |
670 | wrb = queue_get_wrb(mccq, wrb_num); | |
671 | free_mcc_tag(&phba->ctrl, tag); | |
672 | resp = embedded_payload(wrb); | |
673 | ||
674 | switch (resp->mac_speed) { | |
675 | case BE2ISCSI_LINK_SPEED_10MBPS: | |
676 | ihost->port_speed = ISCSI_PORT_SPEED_10MBPS; | |
677 | break; | |
678 | case BE2ISCSI_LINK_SPEED_100MBPS: | |
679 | ihost->port_speed = BE2ISCSI_LINK_SPEED_100MBPS; | |
680 | break; | |
681 | case BE2ISCSI_LINK_SPEED_1GBPS: | |
682 | ihost->port_speed = ISCSI_PORT_SPEED_1GBPS; | |
683 | break; | |
684 | case BE2ISCSI_LINK_SPEED_10GBPS: | |
685 | ihost->port_speed = ISCSI_PORT_SPEED_10GBPS; | |
686 | break; | |
687 | default: | |
688 | ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN; | |
689 | } | |
690 | return 0; | |
691 | } | |
692 | ||
6733b39a JK |
693 | /** |
694 | * beiscsi_get_host_param - get the iscsi parameter | |
695 | * @shost: pointer to scsi_host structure | |
696 | * @param: parameter type identifier | |
697 | * @buf: buffer pointer | |
698 | * | |
699 | * returns host parameter | |
700 | */ | |
701 | int beiscsi_get_host_param(struct Scsi_Host *shost, | |
702 | enum iscsi_host_param param, char *buf) | |
703 | { | |
3093b048 | 704 | struct beiscsi_hba *phba = iscsi_host_priv(shost); |
b15d05b0 | 705 | int status = 0; |
6733b39a | 706 | |
756d29c8 | 707 | SE_DEBUG(DBG_LVL_8, "In beiscsi_get_host_param, param= %d\n", param); |
6733b39a JK |
708 | switch (param) { |
709 | case ISCSI_HOST_PARAM_HWADDRESS: | |
c7acc5b8 JK |
710 | status = beiscsi_get_macaddr(buf, phba); |
711 | if (status < 0) { | |
712 | SE_DEBUG(DBG_LVL_1, "beiscsi_get_macaddr Failed\n"); | |
713 | return status; | |
756d29c8 | 714 | } |
6733b39a | 715 | break; |
2177199d JSJ |
716 | case ISCSI_HOST_PARAM_INITIATOR_NAME: |
717 | status = beiscsi_get_initname(buf, phba); | |
718 | if (status < 0) { | |
719 | SE_DEBUG(DBG_LVL_1, | |
720 | "Retreiving Initiator Name Failed\n"); | |
721 | return status; | |
722 | } | |
723 | break; | |
c62eef0d JSJ |
724 | case ISCSI_HOST_PARAM_PORT_STATE: |
725 | beiscsi_get_port_state(shost); | |
726 | status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); | |
727 | break; | |
728 | case ISCSI_HOST_PARAM_PORT_SPEED: | |
729 | status = beiscsi_get_port_speed(shost); | |
730 | if (status) { | |
731 | SE_DEBUG(DBG_LVL_1, | |
732 | "Retreiving Port Speed Failed\n"); | |
733 | return status; | |
734 | } | |
735 | status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); | |
736 | break; | |
6733b39a JK |
737 | default: |
738 | return iscsi_host_get_param(shost, param, buf); | |
739 | } | |
b15d05b0 | 740 | return status; |
6733b39a JK |
741 | } |
742 | ||
c7acc5b8 JK |
743 | int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba) |
744 | { | |
0e43895e | 745 | struct be_cmd_get_nic_conf_resp resp; |
c7acc5b8 JK |
746 | int rc; |
747 | ||
0e43895e MC |
748 | if (strlen(phba->mac_address)) |
749 | return strlcpy(buf, phba->mac_address, PAGE_SIZE); | |
c7acc5b8 | 750 | |
0e43895e MC |
751 | memset(&resp, 0, sizeof(resp)); |
752 | rc = mgmt_get_nic_conf(phba, &resp); | |
753 | if (rc) | |
754 | return rc; | |
c7acc5b8 | 755 | |
0e43895e MC |
756 | memcpy(phba->mac_address, resp.mac_address, ETH_ALEN); |
757 | return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN); | |
c7acc5b8 JK |
758 | } |
759 | ||
6733b39a JK |
760 | /** |
761 | * beiscsi_conn_get_stats - get the iscsi stats | |
762 | * @cls_conn: pointer to iscsi cls conn | |
763 | * @stats: pointer to iscsi_stats structure | |
764 | * | |
765 | * returns iscsi stats | |
766 | */ | |
767 | void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn, | |
768 | struct iscsi_stats *stats) | |
769 | { | |
770 | struct iscsi_conn *conn = cls_conn->dd_data; | |
771 | ||
772 | SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_stats\n"); | |
773 | stats->txdata_octets = conn->txdata_octets; | |
774 | stats->rxdata_octets = conn->rxdata_octets; | |
775 | stats->dataout_pdus = conn->dataout_pdus_cnt; | |
776 | stats->scsirsp_pdus = conn->scsirsp_pdus_cnt; | |
777 | stats->scsicmd_pdus = conn->scsicmd_pdus_cnt; | |
778 | stats->datain_pdus = conn->datain_pdus_cnt; | |
779 | stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt; | |
780 | stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt; | |
781 | stats->r2t_pdus = conn->r2t_pdus_cnt; | |
782 | stats->digest_err = 0; | |
783 | stats->timeout_err = 0; | |
784 | stats->custom_length = 0; | |
785 | strcpy(stats->custom[0].desc, "eh_abort_cnt"); | |
786 | stats->custom[0].value = conn->eh_abort_cnt; | |
787 | } | |
788 | ||
789 | /** | |
790 | * beiscsi_set_params_for_offld - get the parameters for offload | |
791 | * @beiscsi_conn: pointer to beiscsi_conn | |
792 | * @params: pointer to offload_params structure | |
793 | */ | |
794 | static void beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn, | |
795 | struct beiscsi_offload_params *params) | |
796 | { | |
797 | struct iscsi_conn *conn = beiscsi_conn->conn; | |
798 | struct iscsi_session *session = conn->session; | |
799 | ||
800 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length, | |
801 | params, session->max_burst); | |
802 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, | |
803 | max_send_data_segment_length, params, | |
804 | conn->max_xmit_dlength); | |
805 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length, | |
806 | params, session->first_burst); | |
807 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params, | |
808 | session->erl); | |
809 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params, | |
810 | conn->datadgst_en); | |
811 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params, | |
812 | conn->hdrdgst_en); | |
813 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params, | |
814 | session->initial_r2t_en); | |
815 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params, | |
816 | session->imm_data_en); | |
817 | AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params, | |
818 | (conn->exp_statsn - 1)); | |
819 | } | |
820 | ||
821 | /** | |
822 | * beiscsi_conn_start - offload of session to chip | |
823 | * @cls_conn: pointer to beiscsi_conn | |
824 | */ | |
825 | int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn) | |
826 | { | |
827 | struct iscsi_conn *conn = cls_conn->dd_data; | |
828 | struct beiscsi_conn *beiscsi_conn = conn->dd_data; | |
829 | struct beiscsi_endpoint *beiscsi_ep; | |
830 | struct beiscsi_offload_params params; | |
6733b39a | 831 | |
756d29c8 | 832 | SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_start\n"); |
6733b39a JK |
833 | memset(¶ms, 0, sizeof(struct beiscsi_offload_params)); |
834 | beiscsi_ep = beiscsi_conn->ep; | |
835 | if (!beiscsi_ep) | |
836 | SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n"); | |
837 | ||
6733b39a JK |
838 | beiscsi_conn->login_in_progress = 0; |
839 | beiscsi_set_params_for_offld(beiscsi_conn, ¶ms); | |
840 | beiscsi_offload_connection(beiscsi_conn, ¶ms); | |
841 | iscsi_conn_start(cls_conn); | |
842 | return 0; | |
843 | } | |
844 | ||
845 | /** | |
846 | * beiscsi_get_cid - Allocate a cid | |
847 | * @phba: The phba instance | |
848 | */ | |
849 | static int beiscsi_get_cid(struct beiscsi_hba *phba) | |
850 | { | |
851 | unsigned short cid = 0xFFFF; | |
852 | ||
853 | if (!phba->avlbl_cids) | |
854 | return cid; | |
855 | ||
856 | cid = phba->cid_array[phba->cid_alloc++]; | |
857 | if (phba->cid_alloc == phba->params.cxns_per_ctrl) | |
858 | phba->cid_alloc = 0; | |
859 | phba->avlbl_cids--; | |
860 | return cid; | |
861 | } | |
862 | ||
fa95d206 MC |
863 | /** |
864 | * beiscsi_put_cid - Free the cid | |
865 | * @phba: The phba for which the cid is being freed | |
866 | * @cid: The cid to free | |
867 | */ | |
868 | static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid) | |
869 | { | |
870 | phba->avlbl_cids++; | |
871 | phba->cid_array[phba->cid_free++] = cid; | |
872 | if (phba->cid_free == phba->params.cxns_per_ctrl) | |
873 | phba->cid_free = 0; | |
874 | } | |
875 | ||
876 | /** | |
877 | * beiscsi_free_ep - free endpoint | |
878 | * @ep: pointer to iscsi endpoint structure | |
879 | */ | |
880 | static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep) | |
881 | { | |
882 | struct beiscsi_hba *phba = beiscsi_ep->phba; | |
883 | ||
884 | beiscsi_put_cid(phba, beiscsi_ep->ep_cid); | |
885 | beiscsi_ep->phba = NULL; | |
886 | } | |
887 | ||
6733b39a JK |
888 | /** |
889 | * beiscsi_open_conn - Ask FW to open a TCP connection | |
890 | * @ep: endpoint to be used | |
891 | * @src_addr: The source IP address | |
892 | * @dst_addr: The Destination IP address | |
893 | * | |
894 | * Asks the FW to open a TCP connection | |
895 | */ | |
896 | static int beiscsi_open_conn(struct iscsi_endpoint *ep, | |
897 | struct sockaddr *src_addr, | |
898 | struct sockaddr *dst_addr, int non_blocking) | |
899 | { | |
900 | struct beiscsi_endpoint *beiscsi_ep = ep->dd_data; | |
901 | struct beiscsi_hba *phba = beiscsi_ep->phba; | |
756d29c8 JK |
902 | struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; |
903 | struct be_mcc_wrb *wrb; | |
904 | struct tcp_connect_and_offload_out *ptcpcnct_out; | |
905 | unsigned short status, extd_status; | |
3cbb7a74 | 906 | struct be_dma_mem nonemb_cmd; |
756d29c8 | 907 | unsigned int tag, wrb_num; |
d3ad2bb3 | 908 | int ret = -ENOMEM; |
6733b39a | 909 | |
756d29c8 | 910 | SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn\n"); |
6733b39a JK |
911 | beiscsi_ep->ep_cid = beiscsi_get_cid(phba); |
912 | if (beiscsi_ep->ep_cid == 0xFFFF) { | |
913 | SE_DEBUG(DBG_LVL_1, "No free cid available\n"); | |
914 | return ret; | |
915 | } | |
457ff3b7 | 916 | SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn, ep_cid=%d\n", |
6733b39a | 917 | beiscsi_ep->ep_cid); |
7da50879 JK |
918 | phba->ep_array[beiscsi_ep->ep_cid - |
919 | phba->fw_config.iscsi_cid_start] = ep; | |
920 | if (beiscsi_ep->ep_cid > (phba->fw_config.iscsi_cid_start + | |
921 | phba->params.cxns_per_ctrl * 2)) { | |
6733b39a | 922 | SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n"); |
fa95d206 | 923 | goto free_ep; |
6733b39a JK |
924 | } |
925 | ||
926 | beiscsi_ep->cid_vld = 0; | |
3cbb7a74 JK |
927 | nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, |
928 | sizeof(struct tcp_connect_and_offload_in), | |
929 | &nonemb_cmd.dma); | |
930 | if (nonemb_cmd.va == NULL) { | |
931 | SE_DEBUG(DBG_LVL_1, | |
932 | "Failed to allocate memory for mgmt_open_connection" | |
933 | "\n"); | |
934 | beiscsi_put_cid(phba, beiscsi_ep->ep_cid); | |
935 | return -ENOMEM; | |
936 | } | |
937 | nonemb_cmd.size = sizeof(struct tcp_connect_and_offload_in); | |
938 | memset(nonemb_cmd.va, 0, nonemb_cmd.size); | |
939 | tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd); | |
756d29c8 JK |
940 | if (!tag) { |
941 | SE_DEBUG(DBG_LVL_1, | |
457ff3b7 | 942 | "mgmt_open_connection Failed for cid=%d\n", |
756d29c8 | 943 | beiscsi_ep->ep_cid); |
1f92638f | 944 | beiscsi_put_cid(phba, beiscsi_ep->ep_cid); |
3cbb7a74 JK |
945 | pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, |
946 | nonemb_cmd.va, nonemb_cmd.dma); | |
1f92638f | 947 | return -EAGAIN; |
756d29c8 JK |
948 | } else { |
949 | wait_event_interruptible(phba->ctrl.mcc_wait[tag], | |
950 | phba->ctrl.mcc_numtag[tag]); | |
951 | } | |
952 | wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; | |
953 | extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; | |
954 | status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; | |
955 | if (status || extd_status) { | |
956 | SE_DEBUG(DBG_LVL_1, "mgmt_open_connection Failed" | |
fa95d206 | 957 | " status = %d extd_status = %d\n", |
756d29c8 JK |
958 | status, extd_status); |
959 | free_mcc_tag(&phba->ctrl, tag); | |
3cbb7a74 JK |
960 | pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, |
961 | nonemb_cmd.va, nonemb_cmd.dma); | |
fa95d206 | 962 | goto free_ep; |
756d29c8 JK |
963 | } else { |
964 | wrb = queue_get_wrb(mccq, wrb_num); | |
965 | free_mcc_tag(&phba->ctrl, tag); | |
966 | ||
457ff3b7 | 967 | ptcpcnct_out = embedded_payload(wrb); |
756d29c8 JK |
968 | beiscsi_ep = ep->dd_data; |
969 | beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle; | |
970 | beiscsi_ep->cid_vld = 1; | |
971 | SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n"); | |
972 | } | |
3cbb7a74 JK |
973 | pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size, |
974 | nonemb_cmd.va, nonemb_cmd.dma); | |
756d29c8 | 975 | return 0; |
6733b39a | 976 | |
fa95d206 MC |
977 | free_ep: |
978 | beiscsi_free_ep(beiscsi_ep); | |
d3ad2bb3 | 979 | return -EBUSY; |
6733b39a JK |
980 | } |
981 | ||
982 | /** | |
983 | * beiscsi_ep_connect - Ask chip to create TCP Conn | |
984 | * @scsi_host: Pointer to scsi_host structure | |
985 | * @dst_addr: The IP address of Target | |
986 | * @non_blocking: blocking or non-blocking call | |
987 | * | |
988 | * This routines first asks chip to create a connection and then allocates an EP | |
989 | */ | |
990 | struct iscsi_endpoint * | |
991 | beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, | |
992 | int non_blocking) | |
993 | { | |
994 | struct beiscsi_hba *phba; | |
995 | struct beiscsi_endpoint *beiscsi_ep; | |
996 | struct iscsi_endpoint *ep; | |
997 | int ret; | |
998 | ||
457ff3b7 | 999 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_connect\n"); |
6733b39a JK |
1000 | if (shost) |
1001 | phba = iscsi_host_priv(shost); | |
1002 | else { | |
1003 | ret = -ENXIO; | |
457ff3b7 | 1004 | SE_DEBUG(DBG_LVL_1, "shost is NULL\n"); |
6733b39a JK |
1005 | return ERR_PTR(ret); |
1006 | } | |
bfead3b2 | 1007 | |
5dc1c416 | 1008 | if (phba->state != BE_ADAPTER_UP) { |
bfead3b2 | 1009 | ret = -EBUSY; |
457ff3b7 | 1010 | SE_DEBUG(DBG_LVL_1, "The Adapter state is Not UP\n"); |
bfead3b2 JK |
1011 | return ERR_PTR(ret); |
1012 | } | |
1013 | ||
6733b39a JK |
1014 | ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint)); |
1015 | if (!ep) { | |
1016 | ret = -ENOMEM; | |
1017 | return ERR_PTR(ret); | |
1018 | } | |
1019 | ||
1020 | beiscsi_ep = ep->dd_data; | |
1021 | beiscsi_ep->phba = phba; | |
c2462288 | 1022 | beiscsi_ep->openiscsi_ep = ep; |
f5ed7bd4 JK |
1023 | ret = beiscsi_open_conn(ep, NULL, dst_addr, non_blocking); |
1024 | if (ret) { | |
457ff3b7 | 1025 | SE_DEBUG(DBG_LVL_1, "Failed in beiscsi_open_conn\n"); |
6733b39a JK |
1026 | goto free_ep; |
1027 | } | |
1028 | ||
1029 | return ep; | |
1030 | ||
1031 | free_ep: | |
fa95d206 | 1032 | iscsi_destroy_endpoint(ep); |
6733b39a JK |
1033 | return ERR_PTR(ret); |
1034 | } | |
1035 | ||
1036 | /** | |
1037 | * beiscsi_ep_poll - Poll to see if connection is established | |
1038 | * @ep: endpoint to be used | |
1039 | * @timeout_ms: timeout specified in millisecs | |
1040 | * | |
1041 | * Poll to see if TCP connection established | |
1042 | */ | |
1043 | int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) | |
1044 | { | |
1045 | struct beiscsi_endpoint *beiscsi_ep = ep->dd_data; | |
1046 | ||
1047 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_poll\n"); | |
1048 | if (beiscsi_ep->cid_vld == 1) | |
1049 | return 1; | |
1050 | else | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | /** | |
1055 | * beiscsi_close_conn - Upload the connection | |
1056 | * @ep: The iscsi endpoint | |
1057 | * @flag: The type of connection closure | |
1058 | */ | |
c2462288 | 1059 | static int beiscsi_close_conn(struct beiscsi_endpoint *beiscsi_ep, int flag) |
6733b39a JK |
1060 | { |
1061 | int ret = 0; | |
756d29c8 | 1062 | unsigned int tag; |
6733b39a JK |
1063 | struct beiscsi_hba *phba = beiscsi_ep->phba; |
1064 | ||
756d29c8 JK |
1065 | tag = mgmt_upload_connection(phba, beiscsi_ep->ep_cid, flag); |
1066 | if (!tag) { | |
457ff3b7 | 1067 | SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x\n", |
6733b39a | 1068 | beiscsi_ep->ep_cid); |
d3ad2bb3 | 1069 | ret = -EAGAIN; |
756d29c8 JK |
1070 | } else { |
1071 | wait_event_interruptible(phba->ctrl.mcc_wait[tag], | |
1072 | phba->ctrl.mcc_numtag[tag]); | |
1073 | free_mcc_tag(&phba->ctrl, tag); | |
6733b39a | 1074 | } |
6733b39a JK |
1075 | return ret; |
1076 | } | |
1077 | ||
6733b39a JK |
1078 | /** |
1079 | * beiscsi_unbind_conn_to_cid - Unbind the beiscsi_conn from phba conn table | |
1080 | * @phba: The phba instance | |
1081 | * @cid: The cid to free | |
1082 | */ | |
1083 | static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba, | |
1084 | unsigned int cid) | |
1085 | { | |
1086 | if (phba->conn_table[cid]) | |
1087 | phba->conn_table[cid] = NULL; | |
1088 | else { | |
457ff3b7 | 1089 | SE_DEBUG(DBG_LVL_8, "Connection table Not occupied.\n"); |
6733b39a JK |
1090 | return -EINVAL; |
1091 | } | |
1092 | return 0; | |
1093 | } | |
1094 | ||
1095 | /** | |
fa95d206 MC |
1096 | * beiscsi_ep_disconnect - Tears down the TCP connection |
1097 | * @ep: endpoint to be used | |
1098 | * | |
1099 | * Tears down the TCP connection | |
6733b39a | 1100 | */ |
fa95d206 | 1101 | void beiscsi_ep_disconnect(struct iscsi_endpoint *ep) |
6733b39a | 1102 | { |
fa95d206 | 1103 | struct beiscsi_conn *beiscsi_conn; |
6733b39a | 1104 | struct beiscsi_endpoint *beiscsi_ep; |
fa95d206 | 1105 | struct beiscsi_hba *phba; |
756d29c8 | 1106 | unsigned int tag; |
6733b39a JK |
1107 | unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH; |
1108 | ||
fa95d206 MC |
1109 | beiscsi_ep = ep->dd_data; |
1110 | phba = beiscsi_ep->phba; | |
1111 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect for ep_cid = %d\n", | |
1112 | beiscsi_ep->ep_cid); | |
1113 | ||
1114 | if (!beiscsi_ep->conn) { | |
1115 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect, no " | |
1116 | "beiscsi_ep\n"); | |
6733b39a JK |
1117 | return; |
1118 | } | |
fa95d206 MC |
1119 | beiscsi_conn = beiscsi_ep->conn; |
1120 | iscsi_suspend_queue(beiscsi_conn->conn); | |
1121 | ||
1122 | SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect ep_cid = %d\n", | |
1123 | beiscsi_ep->ep_cid); | |
1124 | ||
756d29c8 | 1125 | tag = mgmt_invalidate_connection(phba, beiscsi_ep, |
6733b39a JK |
1126 | beiscsi_ep->ep_cid, 1, |
1127 | savecfg_flag); | |
756d29c8 | 1128 | if (!tag) { |
6733b39a | 1129 | SE_DEBUG(DBG_LVL_1, |
457ff3b7 | 1130 | "mgmt_invalidate_connection Failed for cid=%d\n", |
90a289e8 | 1131 | beiscsi_ep->ep_cid); |
756d29c8 JK |
1132 | } else { |
1133 | wait_event_interruptible(phba->ctrl.mcc_wait[tag], | |
1134 | phba->ctrl.mcc_numtag[tag]); | |
1135 | free_mcc_tag(&phba->ctrl, tag); | |
6733b39a | 1136 | } |
fa95d206 | 1137 | |
c2462288 JK |
1138 | beiscsi_close_conn(beiscsi_ep, CONNECTION_UPLOAD_GRACEFUL); |
1139 | beiscsi_free_ep(beiscsi_ep); | |
6733b39a | 1140 | beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid); |
fa95d206 | 1141 | iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep); |
6733b39a | 1142 | } |
3128c6c7 | 1143 | |
587a1f16 | 1144 | umode_t be2iscsi_attr_is_visible(int param_type, int param) |
3128c6c7 MC |
1145 | { |
1146 | switch (param_type) { | |
0e43895e MC |
1147 | case ISCSI_NET_PARAM: |
1148 | switch (param) { | |
1149 | case ISCSI_NET_PARAM_IFACE_ENABLE: | |
1150 | case ISCSI_NET_PARAM_IPV4_ADDR: | |
1151 | case ISCSI_NET_PARAM_IPV4_SUBNET: | |
1152 | case ISCSI_NET_PARAM_IPV4_BOOTPROTO: | |
1153 | case ISCSI_NET_PARAM_IPV4_GW: | |
1154 | case ISCSI_NET_PARAM_IPV6_ADDR: | |
1155 | return S_IRUGO; | |
1156 | default: | |
1157 | return 0; | |
1158 | } | |
f27fb2ef MC |
1159 | case ISCSI_HOST_PARAM: |
1160 | switch (param) { | |
1161 | case ISCSI_HOST_PARAM_HWADDRESS: | |
c62eef0d JSJ |
1162 | case ISCSI_HOST_PARAM_INITIATOR_NAME: |
1163 | case ISCSI_HOST_PARAM_PORT_STATE: | |
1164 | case ISCSI_HOST_PARAM_PORT_SPEED: | |
f27fb2ef MC |
1165 | return S_IRUGO; |
1166 | default: | |
1167 | return 0; | |
1168 | } | |
3128c6c7 MC |
1169 | case ISCSI_PARAM: |
1170 | switch (param) { | |
1171 | case ISCSI_PARAM_MAX_RECV_DLENGTH: | |
1172 | case ISCSI_PARAM_MAX_XMIT_DLENGTH: | |
1173 | case ISCSI_PARAM_HDRDGST_EN: | |
1174 | case ISCSI_PARAM_DATADGST_EN: | |
1175 | case ISCSI_PARAM_CONN_ADDRESS: | |
1176 | case ISCSI_PARAM_CONN_PORT: | |
1177 | case ISCSI_PARAM_EXP_STATSN: | |
1178 | case ISCSI_PARAM_PERSISTENT_ADDRESS: | |
1179 | case ISCSI_PARAM_PERSISTENT_PORT: | |
1180 | case ISCSI_PARAM_PING_TMO: | |
1181 | case ISCSI_PARAM_RECV_TMO: | |
1d063c17 MC |
1182 | case ISCSI_PARAM_INITIAL_R2T_EN: |
1183 | case ISCSI_PARAM_MAX_R2T: | |
1184 | case ISCSI_PARAM_IMM_DATA_EN: | |
1185 | case ISCSI_PARAM_FIRST_BURST: | |
1186 | case ISCSI_PARAM_MAX_BURST: | |
1187 | case ISCSI_PARAM_PDU_INORDER_EN: | |
1188 | case ISCSI_PARAM_DATASEQ_INORDER_EN: | |
1189 | case ISCSI_PARAM_ERL: | |
1190 | case ISCSI_PARAM_TARGET_NAME: | |
1191 | case ISCSI_PARAM_TPGT: | |
1192 | case ISCSI_PARAM_USERNAME: | |
1193 | case ISCSI_PARAM_PASSWORD: | |
1194 | case ISCSI_PARAM_USERNAME_IN: | |
1195 | case ISCSI_PARAM_PASSWORD_IN: | |
1196 | case ISCSI_PARAM_FAST_ABORT: | |
1197 | case ISCSI_PARAM_ABORT_TMO: | |
1198 | case ISCSI_PARAM_LU_RESET_TMO: | |
1199 | case ISCSI_PARAM_IFACE_NAME: | |
1200 | case ISCSI_PARAM_INITIATOR_NAME: | |
3128c6c7 MC |
1201 | return S_IRUGO; |
1202 | default: | |
1203 | return 0; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | return 0; | |
1208 | } |