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75f8c1f6 NB |
1 | /******************************************************************************* |
2 | * This file contains tcm implementation using v4 configfs fabric infrastructure | |
3 | * for QLogic target mode HBAs | |
4 | * | |
4c76251e | 5 | * (c) Copyright 2010-2013 Datera, Inc. |
75f8c1f6 | 6 | * |
4c76251e | 7 | * Author: Nicholas A. Bellinger <nab@daterainc.com> |
75f8c1f6 NB |
8 | * |
9 | * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from | |
10 | * the TCM_FC / Open-FCoE.org fabric module. | |
11 | * | |
12 | * Copyright (c) 2010 Cisco Systems, Inc | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | ****************************************************************************/ | |
24 | ||
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <generated/utsrelease.h> | |
29 | #include <linux/utsname.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/list.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/kthread.h> | |
34 | #include <linux/types.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/configfs.h> | |
37 | #include <linux/ctype.h> | |
75f8c1f6 NB |
38 | #include <asm/unaligned.h> |
39 | #include <scsi/scsi.h> | |
40 | #include <scsi/scsi_host.h> | |
41 | #include <scsi/scsi_device.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <target/target_core_base.h> | |
44 | #include <target/target_core_fabric.h> | |
45 | #include <target/target_core_fabric_configfs.h> | |
46 | #include <target/target_core_configfs.h> | |
47 | #include <target/configfs_macros.h> | |
48 | ||
49 | #include "qla_def.h" | |
50 | #include "qla_target.h" | |
51 | #include "tcm_qla2xxx.h" | |
52 | ||
4d6609c4 HM |
53 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
54 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; | |
55 | ||
9ac8928e CH |
56 | static const struct target_core_fabric_ops tcm_qla2xxx_ops; |
57 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops; | |
75f8c1f6 | 58 | |
75f8c1f6 NB |
59 | /* |
60 | * Parse WWN. | |
61 | * If strict, we require lower-case hex and colon separators to be sure | |
62 | * the name is the same as what would be generated by ft_format_wwn() | |
63 | * so the name and wwn are mapped one-to-one. | |
64 | */ | |
65 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
66 | { | |
67 | const char *cp; | |
68 | char c; | |
69 | u32 nibble; | |
70 | u32 byte = 0; | |
71 | u32 pos = 0; | |
72 | u32 err; | |
73 | ||
74 | *wwn = 0; | |
75 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
76 | c = *cp; | |
77 | if (c == '\n' && cp[1] == '\0') | |
78 | continue; | |
79 | if (strict && pos++ == 2 && byte++ < 7) { | |
80 | pos = 0; | |
81 | if (c == ':') | |
82 | continue; | |
83 | err = 1; | |
84 | goto fail; | |
85 | } | |
86 | if (c == '\0') { | |
87 | err = 2; | |
88 | if (strict && byte != 8) | |
89 | goto fail; | |
90 | return cp - name; | |
91 | } | |
92 | err = 3; | |
93 | if (isdigit(c)) | |
94 | nibble = c - '0'; | |
95 | else if (isxdigit(c) && (islower(c) || !strict)) | |
96 | nibble = tolower(c) - 'a' + 10; | |
97 | else | |
98 | goto fail; | |
99 | *wwn = (*wwn << 4) | nibble; | |
100 | } | |
101 | err = 4; | |
102 | fail: | |
103 | pr_debug("err %u len %zu pos %u byte %u\n", | |
104 | err, cp - name, pos, byte); | |
105 | return -1; | |
106 | } | |
107 | ||
108 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
109 | { | |
110 | u8 b[8]; | |
111 | ||
112 | put_unaligned_be64(wwn, b); | |
113 | return snprintf(buf, len, | |
114 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
115 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
116 | } | |
117 | ||
118 | static char *tcm_qla2xxx_get_fabric_name(void) | |
119 | { | |
120 | return "qla2xxx"; | |
121 | } | |
122 | ||
123 | /* | |
124 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
125 | */ | |
126 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
127 | { | |
d4f75b56 | 128 | unsigned int i, j; |
75f8c1f6 NB |
129 | u8 wwn[8]; |
130 | ||
131 | memset(wwn, 0, sizeof(wwn)); | |
132 | ||
133 | /* Validate and store the new name */ | |
134 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
135 | int value; |
136 | ||
75f8c1f6 NB |
137 | value = hex_to_bin(*ns++); |
138 | if (value >= 0) | |
139 | j = (j << 4) | value; | |
140 | else | |
141 | return -EINVAL; | |
142 | ||
143 | if (i % 2) { | |
144 | wwn[i/2] = j & 0xff; | |
145 | j = 0; | |
146 | } | |
147 | } | |
148 | ||
149 | *nm = wwn_to_u64(wwn); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /* | |
154 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
155 | * store_fc_host_vport_create() | |
156 | */ | |
157 | static int tcm_qla2xxx_npiv_parse_wwn( | |
158 | const char *name, | |
159 | size_t count, | |
160 | u64 *wwpn, | |
161 | u64 *wwnn) | |
162 | { | |
163 | unsigned int cnt = count; | |
164 | int rc; | |
165 | ||
166 | *wwpn = 0; | |
167 | *wwnn = 0; | |
168 | ||
169 | /* count may include a LF at end of string */ | |
0e8cd71c | 170 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
171 | cnt--; |
172 | ||
173 | /* validate we have enough characters for WWPN */ | |
174 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
175 | return -EINVAL; | |
176 | ||
177 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
178 | if (rc != 0) | |
179 | return rc; | |
180 | ||
181 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
182 | if (rc != 0) | |
183 | return rc; | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
75f8c1f6 NB |
188 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
189 | { | |
190 | return "qla2xxx_npiv"; | |
191 | } | |
192 | ||
75f8c1f6 NB |
193 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
194 | { | |
195 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
196 | struct tcm_qla2xxx_tpg, se_tpg); | |
197 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
198 | ||
c046aa0f | 199 | return lport->lport_naa_name; |
75f8c1f6 NB |
200 | } |
201 | ||
75f8c1f6 NB |
202 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
203 | { | |
204 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
205 | struct tcm_qla2xxx_tpg, se_tpg); | |
206 | return tpg->lport_tpgt; | |
207 | } | |
208 | ||
75f8c1f6 NB |
209 | static u32 tcm_qla2xxx_get_pr_transport_id( |
210 | struct se_portal_group *se_tpg, | |
211 | struct se_node_acl *se_nacl, | |
212 | struct t10_pr_registration *pr_reg, | |
213 | int *format_code, | |
214 | unsigned char *buf) | |
215 | { | |
216 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
217 | struct tcm_qla2xxx_tpg, se_tpg); | |
218 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
219 | int ret = 0; | |
220 | ||
221 | switch (lport->lport_proto_id) { | |
222 | case SCSI_PROTOCOL_FCP: | |
223 | default: | |
224 | ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, | |
225 | format_code, buf); | |
226 | break; | |
227 | } | |
228 | ||
229 | return ret; | |
230 | } | |
231 | ||
232 | static u32 tcm_qla2xxx_get_pr_transport_id_len( | |
233 | struct se_portal_group *se_tpg, | |
234 | struct se_node_acl *se_nacl, | |
235 | struct t10_pr_registration *pr_reg, | |
236 | int *format_code) | |
237 | { | |
238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
239 | struct tcm_qla2xxx_tpg, se_tpg); | |
240 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
241 | int ret = 0; | |
242 | ||
243 | switch (lport->lport_proto_id) { | |
244 | case SCSI_PROTOCOL_FCP: | |
245 | default: | |
246 | ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, | |
247 | format_code); | |
248 | break; | |
249 | } | |
250 | ||
251 | return ret; | |
252 | } | |
253 | ||
254 | static char *tcm_qla2xxx_parse_pr_out_transport_id( | |
255 | struct se_portal_group *se_tpg, | |
256 | const char *buf, | |
257 | u32 *out_tid_len, | |
258 | char **port_nexus_ptr) | |
259 | { | |
260 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
261 | struct tcm_qla2xxx_tpg, se_tpg); | |
262 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
263 | char *tid = NULL; | |
264 | ||
265 | switch (lport->lport_proto_id) { | |
266 | case SCSI_PROTOCOL_FCP: | |
267 | default: | |
268 | tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, | |
269 | port_nexus_ptr); | |
270 | break; | |
271 | } | |
272 | ||
273 | return tid; | |
274 | } | |
275 | ||
276 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) | |
277 | { | |
278 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
279 | struct tcm_qla2xxx_tpg, se_tpg); | |
280 | ||
a309f489 | 281 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
282 | } |
283 | ||
284 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
285 | { | |
286 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
287 | struct tcm_qla2xxx_tpg, se_tpg); | |
288 | ||
a309f489 | 289 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
290 | } |
291 | ||
292 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
293 | { | |
294 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
295 | struct tcm_qla2xxx_tpg, se_tpg); | |
296 | ||
a309f489 | 297 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
298 | } |
299 | ||
300 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
301 | { | |
302 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
303 | struct tcm_qla2xxx_tpg, se_tpg); | |
304 | ||
a309f489 | 305 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
306 | } |
307 | ||
de04a8aa AG |
308 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
309 | { | |
310 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
311 | struct tcm_qla2xxx_tpg, se_tpg); | |
312 | ||
a309f489 | 313 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
314 | } |
315 | ||
64b16887 NB |
316 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
317 | { | |
318 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
319 | struct tcm_qla2xxx_tpg, se_tpg); | |
320 | ||
321 | return tpg->tpg_attrib.fabric_prot_type; | |
322 | } | |
323 | ||
75f8c1f6 NB |
324 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
325 | { | |
326 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
327 | struct tcm_qla2xxx_tpg, se_tpg); | |
328 | ||
329 | return tpg->lport_tpgt; | |
330 | } | |
331 | ||
332 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
333 | { | |
334 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
335 | struct qla_tgt_mgmt_cmd, free_work); | |
336 | ||
337 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
338 | } | |
339 | ||
340 | /* | |
341 | * Called from qla_target_template->free_mcmd(), and will call | |
342 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
343 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
344 | */ | |
345 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
346 | { | |
347 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
348 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
349 | } | |
350 | ||
351 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
352 | { | |
353 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
354 | ||
e07f8f65 SK |
355 | cmd->cmd_in_wq = 0; |
356 | ||
357 | WARN_ON(cmd->cmd_flags & BIT_16); | |
358 | ||
359 | cmd->cmd_flags |= BIT_16; | |
75f8c1f6 NB |
360 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
361 | } | |
362 | ||
363 | /* | |
364 | * Called from qla_target_template->free_cmd(), and will call | |
365 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
366 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
367 | */ | |
368 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
369 | { | |
e07f8f65 | 370 | cmd->cmd_in_wq = 1; |
75f8c1f6 NB |
371 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
372 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
373 | } | |
374 | ||
375 | /* | |
376 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
377 | */ | |
378 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
379 | { | |
e07f8f65 SK |
380 | struct qla_tgt_cmd *cmd; |
381 | ||
382 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
383 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
384 | cmd->cmd_flags |= BIT_14; | |
385 | } | |
386 | ||
afc16604 | 387 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
388 | } |
389 | ||
390 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
391 | * fabric descriptor @se_cmd command to release | |
392 | */ | |
393 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
394 | { | |
395 | struct qla_tgt_cmd *cmd; | |
396 | ||
397 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
398 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
399 | struct qla_tgt_mgmt_cmd, se_cmd); | |
400 | qlt_free_mcmd(mcmd); | |
401 | return; | |
402 | } | |
403 | ||
404 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
405 | qlt_free_cmd(cmd); | |
406 | } | |
407 | ||
408 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) | |
409 | { | |
410 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
411 | struct scsi_qla_host *vha; | |
412 | unsigned long flags; | |
413 | ||
414 | BUG_ON(!sess); | |
415 | vha = sess->vha; | |
416 | ||
417 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
1c7b13fe | 418 | target_sess_cmd_list_set_waiting(se_sess); |
75f8c1f6 NB |
419 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
420 | ||
421 | return 1; | |
422 | } | |
423 | ||
424 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) | |
425 | { | |
426 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
427 | struct scsi_qla_host *vha; | |
428 | unsigned long flags; | |
429 | ||
430 | BUG_ON(!sess); | |
431 | vha = sess->vha; | |
432 | ||
433 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
434 | qlt_unreg_sess(sess); | |
435 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
436 | } | |
437 | ||
438 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
439 | { | |
440 | return 0; | |
441 | } | |
442 | ||
75f8c1f6 NB |
443 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
444 | { | |
445 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
446 | struct qla_tgt_cmd, se_cmd); | |
447 | ||
448 | cmd->bufflen = se_cmd->data_length; | |
b3faa2e8 | 449 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
450 | |
451 | cmd->sg_cnt = se_cmd->t_data_nents; | |
452 | cmd->sg = se_cmd->t_data_sg; | |
453 | ||
f83adb61 QT |
454 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
455 | cmd->prot_sg = se_cmd->t_prot_sg; | |
456 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
457 | se_cmd->pi_err = 0; | |
458 | ||
75f8c1f6 NB |
459 | /* |
460 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
461 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
462 | */ | |
463 | return qlt_rdy_to_xfer(cmd); | |
464 | } | |
465 | ||
466 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
467 | { | |
468 | unsigned long flags; | |
469 | /* | |
470 | * Check for WRITE_PENDING status to determine if we need to wait for | |
471 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
472 | */ | |
473 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
474 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
475 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
476 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
477 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
478 | 3000); | |
479 | return 0; | |
480 | } | |
481 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
487 | { | |
488 | return; | |
489 | } | |
490 | ||
491 | static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd) | |
492 | { | |
dd9c4eff HM |
493 | struct qla_tgt_cmd *cmd; |
494 | ||
495 | /* check for task mgmt cmd */ | |
496 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) | |
497 | return 0xffffffff; | |
498 | ||
499 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
75f8c1f6 NB |
500 | |
501 | return cmd->tag; | |
502 | } | |
503 | ||
504 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) | |
505 | { | |
506 | return 0; | |
507 | } | |
508 | ||
509 | /* | |
510 | * Called from process context in qla_target.c:qlt_do_work() code | |
511 | */ | |
512 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
513 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
514 | int data_dir, int bidi) | |
515 | { | |
516 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
517 | struct se_session *se_sess; | |
518 | struct qla_tgt_sess *sess; | |
519 | int flags = TARGET_SCF_ACK_KREF; | |
520 | ||
521 | if (bidi) | |
522 | flags |= TARGET_SCF_BIDI_OP; | |
523 | ||
524 | sess = cmd->sess; | |
525 | if (!sess) { | |
526 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | |
527 | return -EINVAL; | |
528 | } | |
529 | ||
530 | se_sess = sess->se_sess; | |
531 | if (!se_sess) { | |
532 | pr_err("Unable to locate active struct se_session\n"); | |
533 | return -EINVAL; | |
534 | } | |
535 | ||
d6dfc868 | 536 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
537 | cmd->unpacked_lun, data_length, fcp_task_attr, |
538 | data_dir, flags); | |
75f8c1f6 NB |
539 | } |
540 | ||
43381ce8 | 541 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
542 | { |
543 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
75f8c1f6 | 544 | |
75f8c1f6 NB |
545 | /* |
546 | * Ensure that the complete FCP WRITE payload has been received. | |
547 | * Otherwise return an exception via CHECK_CONDITION status. | |
548 | */ | |
e07f8f65 SK |
549 | cmd->cmd_in_wq = 0; |
550 | cmd->cmd_flags |= BIT_11; | |
75f8c1f6 NB |
551 | if (!cmd->write_data_transferred) { |
552 | /* | |
553 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
554 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
555 | */ | |
43381ce8 CH |
556 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
557 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
558 | return; | |
75f8c1f6 | 559 | } |
75f8c1f6 | 560 | |
f83adb61 QT |
561 | if (cmd->se_cmd.pi_err) |
562 | transport_generic_request_failure(&cmd->se_cmd, | |
563 | cmd->se_cmd.pi_err); | |
564 | else | |
565 | transport_generic_request_failure(&cmd->se_cmd, | |
566 | TCM_CHECK_CONDITION_ABORT_CMD); | |
567 | ||
43381ce8 | 568 | return; |
75f8c1f6 | 569 | } |
43381ce8 CH |
570 | |
571 | return target_execute_cmd(&cmd->se_cmd); | |
572 | } | |
573 | ||
574 | /* | |
575 | * Called from qla_target.c:qlt_do_ctio_completion() | |
576 | */ | |
577 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
578 | { | |
e07f8f65 SK |
579 | cmd->cmd_flags |= BIT_10; |
580 | cmd->cmd_in_wq = 1; | |
43381ce8 CH |
581 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
582 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
75f8c1f6 NB |
583 | } |
584 | ||
f83adb61 QT |
585 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
586 | { | |
587 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
588 | ||
589 | /* take an extra kref to prevent cmd free too early. | |
590 | * need to wait for SCSI status/check condition to | |
591 | * finish responding generate by transport_generic_request_failure. | |
592 | */ | |
593 | kref_get(&cmd->se_cmd.cmd_kref); | |
594 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); | |
595 | } | |
596 | ||
597 | /* | |
598 | * Called from qla_target.c:qlt_do_ctio_completion() | |
599 | */ | |
600 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) | |
601 | { | |
602 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); | |
603 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
604 | } | |
605 | ||
75f8c1f6 NB |
606 | /* |
607 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
608 | */ | |
9389c3c9 RD |
609 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
610 | uint8_t tmr_func, uint32_t tag) | |
75f8c1f6 NB |
611 | { |
612 | struct qla_tgt_sess *sess = mcmd->sess; | |
613 | struct se_cmd *se_cmd = &mcmd->se_cmd; | |
614 | ||
615 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
616 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | |
617 | } | |
618 | ||
619 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
620 | { | |
621 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
622 | struct qla_tgt_cmd, se_cmd); | |
623 | ||
e07f8f65 | 624 | cmd->cmd_flags |= BIT_4; |
75f8c1f6 | 625 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 626 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
627 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
628 | ||
629 | cmd->sg_cnt = se_cmd->t_data_nents; | |
630 | cmd->sg = se_cmd->t_data_sg; | |
631 | cmd->offset = 0; | |
e07f8f65 | 632 | cmd->cmd_flags |= BIT_3; |
75f8c1f6 | 633 | |
f83adb61 QT |
634 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
635 | cmd->prot_sg = se_cmd->t_prot_sg; | |
636 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
637 | se_cmd->pi_err = 0; | |
638 | ||
75f8c1f6 NB |
639 | /* |
640 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
641 | */ | |
642 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
643 | se_cmd->scsi_status); | |
644 | } | |
645 | ||
646 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
647 | { | |
648 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
649 | struct qla_tgt_cmd, se_cmd); | |
650 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
651 | ||
652 | cmd->bufflen = se_cmd->data_length; | |
653 | cmd->sg = NULL; | |
654 | cmd->sg_cnt = 0; | |
655 | cmd->offset = 0; | |
b3faa2e8 | 656 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 | 657 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
e07f8f65 SK |
658 | if (cmd->cmd_flags & BIT_5) { |
659 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); | |
660 | dump_stack(); | |
661 | } | |
662 | cmd->cmd_flags |= BIT_5; | |
75f8c1f6 NB |
663 | |
664 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
665 | /* | |
666 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
667 | * for qla_tgt_xmit_response LLD code | |
668 | */ | |
b5aff3d2 RD |
669 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
670 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
671 | se_cmd->residual_count = 0; | |
672 | } | |
75f8c1f6 | 673 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 674 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
675 | |
676 | cmd->bufflen = 0; | |
677 | } | |
678 | /* | |
679 | * Now queue status response to qla2xxx LLD code and response ring | |
680 | */ | |
681 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
682 | } | |
683 | ||
b79fafac | 684 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
685 | { |
686 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
687 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
688 | struct qla_tgt_mgmt_cmd, se_cmd); | |
689 | ||
690 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
691 | mcmd, se_tmr->function, se_tmr->response); | |
692 | /* | |
693 | * Do translation between TCM TM response codes and | |
694 | * QLA2xxx FC TM response codes. | |
695 | */ | |
696 | switch (se_tmr->response) { | |
697 | case TMR_FUNCTION_COMPLETE: | |
698 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
699 | break; | |
700 | case TMR_TASK_DOES_NOT_EXIST: | |
701 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
702 | break; | |
703 | case TMR_FUNCTION_REJECTED: | |
704 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
705 | break; | |
706 | case TMR_LUN_DOES_NOT_EXIST: | |
707 | default: | |
708 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
709 | break; | |
710 | } | |
711 | /* | |
712 | * Queue the TM response to QLA2xxx LLD to build a | |
713 | * CTIO response packet. | |
714 | */ | |
715 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
716 | } |
717 | ||
131e6abc NB |
718 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
719 | { | |
720 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
721 | struct qla_tgt_cmd, se_cmd); | |
722 | struct scsi_qla_host *vha = cmd->vha; | |
723 | struct qla_hw_data *ha = vha->hw; | |
724 | ||
725 | if (!cmd->sg_mapped) | |
726 | return; | |
727 | ||
728 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); | |
729 | cmd->sg_mapped = 0; | |
730 | } | |
731 | ||
f2d5d9b9 NB |
732 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
733 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | |
75f8c1f6 NB |
734 | /* |
735 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
736 | */ | |
737 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | |
738 | { | |
739 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
740 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
741 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
742 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
743 | struct tcm_qla2xxx_lport, lport_wwn); | |
744 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
745 | struct tcm_qla2xxx_nacl, se_node_acl); | |
746 | void *node; | |
747 | ||
748 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
749 | ||
750 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
751 | if (WARN_ON(node && (node != se_nacl))) { |
752 | /* | |
753 | * The nacl no longer matches what we think it should be. | |
754 | * Most likely a new dynamic acl has been added while | |
755 | * someone dropped the hardware lock. It clearly is a | |
756 | * bug elsewhere, but this bit can't make things worse. | |
757 | */ | |
758 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
759 | node, GFP_ATOMIC); | |
760 | } | |
75f8c1f6 NB |
761 | |
762 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
763 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
764 | /* |
765 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
766 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
767 | * | |
768 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
769 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
770 | * I/O to complete, to avoid a race between session shutdown execution | |
771 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
772 | */ | |
773 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
774 | } |
775 | ||
aaf68b75 JE |
776 | static void tcm_qla2xxx_release_session(struct kref *kref) |
777 | { | |
778 | struct se_session *se_sess = container_of(kref, | |
779 | struct se_session, sess_kref); | |
780 | ||
781 | qlt_unreg_sess(se_sess->fabric_sess_ptr); | |
782 | } | |
783 | ||
784 | static void tcm_qla2xxx_put_session(struct se_session *se_sess) | |
785 | { | |
786 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
787 | struct qla_hw_data *ha = sess->vha->hw; | |
788 | unsigned long flags; | |
789 | ||
790 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
791 | kref_put(&se_sess->sess_kref, tcm_qla2xxx_release_session); | |
792 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
793 | } | |
794 | ||
75f8c1f6 NB |
795 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) |
796 | { | |
0e8cd71c SK |
797 | if (!sess) |
798 | return; | |
799 | ||
08234e3a JE |
800 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
801 | kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session); | |
75f8c1f6 NB |
802 | } |
803 | ||
804 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) | |
805 | { | |
08234e3a JE |
806 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
807 | target_sess_cmd_list_set_waiting(sess->se_sess); | |
75f8c1f6 NB |
808 | } |
809 | ||
c7d6a803 CH |
810 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
811 | const char *name) | |
75f8c1f6 | 812 | { |
c7d6a803 CH |
813 | struct tcm_qla2xxx_nacl *nacl = |
814 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 815 | u64 wwnn; |
75f8c1f6 NB |
816 | |
817 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 818 | return -EINVAL; |
75f8c1f6 | 819 | |
75f8c1f6 NB |
820 | nacl->nport_wwnn = wwnn; |
821 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 822 | |
c7d6a803 | 823 | return 0; |
75f8c1f6 NB |
824 | } |
825 | ||
826 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
827 | ||
828 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
829 | \ | |
830 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ | |
831 | struct se_portal_group *se_tpg, \ | |
832 | char *page) \ | |
833 | { \ | |
834 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
835 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
836 | \ | |
a309f489 | 837 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
838 | } \ |
839 | \ | |
840 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ | |
841 | struct se_portal_group *se_tpg, \ | |
842 | const char *page, \ | |
843 | size_t count) \ | |
844 | { \ | |
845 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
846 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
847 | unsigned long val; \ | |
848 | int ret; \ | |
849 | \ | |
850 | ret = kstrtoul(page, 0, &val); \ | |
851 | if (ret < 0) { \ | |
852 | pr_err("kstrtoul() failed with" \ | |
853 | " ret: %d\n", ret); \ | |
854 | return -EINVAL; \ | |
855 | } \ | |
856 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ | |
857 | \ | |
858 | return (!ret) ? count : -EINVAL; \ | |
859 | } | |
860 | ||
861 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ | |
862 | \ | |
863 | static int tcm_qla2xxx_set_attrib_##_name( \ | |
864 | struct tcm_qla2xxx_tpg *tpg, \ | |
865 | unsigned long val) \ | |
866 | { \ | |
867 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ | |
868 | \ | |
869 | if ((val != 0) && (val != 1)) { \ | |
870 | pr_err("Illegal boolean value %lu\n", val); \ | |
871 | return -EINVAL; \ | |
872 | } \ | |
873 | \ | |
874 | a->_name = val; \ | |
875 | return 0; \ | |
876 | } | |
877 | ||
878 | #define QLA_TPG_ATTR(_name, _mode) \ | |
879 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); | |
880 | ||
881 | /* | |
882 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls | |
883 | */ | |
884 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); | |
885 | DEF_QLA_TPG_ATTRIB(generate_node_acls); | |
886 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
887 | ||
888 | /* | |
889 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls | |
890 | */ | |
891 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); | |
892 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); | |
893 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
894 | ||
895 | /* | |
896 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect | |
897 | */ | |
898 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); | |
899 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); | |
900 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
901 | ||
902 | /* | |
903 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect | |
904 | */ | |
905 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); | |
906 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); | |
907 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
908 | ||
de04a8aa AG |
909 | /* |
910 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only | |
911 | */ | |
912 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); | |
913 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); | |
914 | QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); | |
915 | ||
75f8c1f6 NB |
916 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
917 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, | |
918 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, | |
919 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, | |
920 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, | |
de04a8aa | 921 | &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, |
75f8c1f6 NB |
922 | NULL, |
923 | }; | |
924 | ||
925 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
926 | ||
927 | static ssize_t tcm_qla2xxx_tpg_show_enable( | |
928 | struct se_portal_group *se_tpg, | |
929 | char *page) | |
930 | { | |
931 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
932 | struct tcm_qla2xxx_tpg, se_tpg); | |
933 | ||
934 | return snprintf(page, PAGE_SIZE, "%d\n", | |
935 | atomic_read(&tpg->lport_tpg_enabled)); | |
936 | } | |
937 | ||
7474f52a NB |
938 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
939 | { | |
940 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
941 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
942 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
943 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
944 | ||
d588cf8f | 945 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
946 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
947 | qlt_enable_vha(base_vha); | |
948 | } | |
949 | complete(&base_tpg->tpg_base_comp); | |
950 | } | |
951 | ||
952 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
953 | { | |
954 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
955 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
956 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
957 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
958 | ||
959 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
960 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 961 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
962 | } |
963 | complete(&base_tpg->tpg_base_comp); | |
964 | } | |
965 | ||
75f8c1f6 NB |
966 | static ssize_t tcm_qla2xxx_tpg_store_enable( |
967 | struct se_portal_group *se_tpg, | |
968 | const char *page, | |
969 | size_t count) | |
970 | { | |
75f8c1f6 NB |
971 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
972 | struct tcm_qla2xxx_tpg, se_tpg); | |
973 | unsigned long op; | |
974 | int rc; | |
975 | ||
976 | rc = kstrtoul(page, 0, &op); | |
977 | if (rc < 0) { | |
978 | pr_err("kstrtoul() returned %d\n", rc); | |
979 | return -EINVAL; | |
980 | } | |
981 | if ((op != 1) && (op != 0)) { | |
982 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
983 | return -EINVAL; | |
984 | } | |
75f8c1f6 | 985 | if (op) { |
7474f52a NB |
986 | if (atomic_read(&tpg->lport_tpg_enabled)) |
987 | return -EEXIST; | |
988 | ||
989 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 990 | } else { |
7474f52a NB |
991 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
992 | return count; | |
993 | ||
994 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 995 | } |
7474f52a NB |
996 | init_completion(&tpg->tpg_base_comp); |
997 | schedule_work(&tpg->tpg_base_work); | |
998 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 999 | |
7474f52a NB |
1000 | if (op) { |
1001 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1002 | return -ENODEV; | |
1003 | } else { | |
1004 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1005 | return -EPERM; | |
1006 | } | |
75f8c1f6 NB |
1007 | return count; |
1008 | } | |
1009 | ||
1010 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); | |
1011 | ||
d23dbaaa NB |
1012 | static ssize_t tcm_qla2xxx_tpg_show_dynamic_sessions( |
1013 | struct se_portal_group *se_tpg, | |
1014 | char *page) | |
1015 | { | |
1016 | return target_show_dynamic_sessions(se_tpg, page); | |
1017 | } | |
1018 | ||
1019 | TF_TPG_BASE_ATTR_RO(tcm_qla2xxx, dynamic_sessions); | |
1020 | ||
64b16887 NB |
1021 | static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( |
1022 | struct se_portal_group *se_tpg, | |
1023 | const char *page, | |
1024 | size_t count) | |
1025 | { | |
1026 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1027 | struct tcm_qla2xxx_tpg, se_tpg); | |
1028 | unsigned long val; | |
1029 | int ret = kstrtoul(page, 0, &val); | |
1030 | ||
1031 | if (ret) { | |
1032 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
1033 | return ret; | |
1034 | } | |
1035 | if (val != 0 && val != 1 && val != 3) { | |
1036 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
1037 | return -EINVAL; | |
1038 | } | |
1039 | tpg->tpg_attrib.fabric_prot_type = val; | |
1040 | ||
1041 | return count; | |
1042 | } | |
1043 | ||
1044 | static ssize_t tcm_qla2xxx_tpg_show_fabric_prot_type( | |
1045 | struct se_portal_group *se_tpg, | |
1046 | char *page) | |
1047 | { | |
1048 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1049 | struct tcm_qla2xxx_tpg, se_tpg); | |
1050 | ||
1051 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
1052 | } | |
1053 | TF_TPG_BASE_ATTR(tcm_qla2xxx, fabric_prot_type, S_IRUGO | S_IWUSR); | |
1054 | ||
75f8c1f6 NB |
1055 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
1056 | &tcm_qla2xxx_tpg_enable.attr, | |
d23dbaaa | 1057 | &tcm_qla2xxx_tpg_dynamic_sessions.attr, |
64b16887 | 1058 | &tcm_qla2xxx_tpg_fabric_prot_type.attr, |
75f8c1f6 NB |
1059 | NULL, |
1060 | }; | |
1061 | ||
1062 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
1063 | struct se_wwn *wwn, | |
1064 | struct config_group *group, | |
1065 | const char *name) | |
1066 | { | |
1067 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1068 | struct tcm_qla2xxx_lport, lport_wwn); | |
1069 | struct tcm_qla2xxx_tpg *tpg; | |
1070 | unsigned long tpgt; | |
1071 | int ret; | |
1072 | ||
1073 | if (strstr(name, "tpgt_") != name) | |
1074 | return ERR_PTR(-EINVAL); | |
1075 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1076 | return ERR_PTR(-EINVAL); | |
1077 | ||
0e8cd71c | 1078 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1079 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1080 | return ERR_PTR(-ENOSYS); | |
1081 | } | |
1082 | ||
1083 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1084 | if (!tpg) { | |
1085 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1086 | return ERR_PTR(-ENOMEM); | |
1087 | } | |
1088 | tpg->lport = lport; | |
1089 | tpg->lport_tpgt = tpgt; | |
1090 | /* | |
1091 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1092 | * NodeACLs | |
1093 | */ | |
a309f489 AG |
1094 | tpg->tpg_attrib.generate_node_acls = 1; |
1095 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1096 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1097 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
75f8c1f6 | 1098 | |
e4aae5af CH |
1099 | ret = core_tpg_register(&tcm_qla2xxx_ops, wwn, &tpg->se_tpg, |
1100 | SCSI_PROTOCOL_FCP); | |
75f8c1f6 NB |
1101 | if (ret < 0) { |
1102 | kfree(tpg); | |
1103 | return NULL; | |
1104 | } | |
0e8cd71c SK |
1105 | |
1106 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1107 | |
1108 | return &tpg->se_tpg; | |
1109 | } | |
1110 | ||
1111 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1112 | { | |
1113 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1114 | struct tcm_qla2xxx_tpg, se_tpg); | |
1115 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1116 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1117 | /* |
1118 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1119 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1120 | */ | |
0e8cd71c SK |
1121 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1122 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1123 | |
1124 | core_tpg_deregister(se_tpg); | |
1125 | /* | |
1126 | * Clear local TPG=1 pointer for non NPIV mode. | |
1127 | */ | |
394d62ba | 1128 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1129 | kfree(tpg); |
1130 | } | |
1131 | ||
394d62ba NB |
1132 | static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( |
1133 | struct se_portal_group *se_tpg, | |
1134 | char *page) | |
1135 | { | |
1136 | return tcm_qla2xxx_tpg_show_enable(se_tpg, page); | |
1137 | } | |
1138 | ||
1139 | static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( | |
1140 | struct se_portal_group *se_tpg, | |
1141 | const char *page, | |
1142 | size_t count) | |
1143 | { | |
1144 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
1145 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1146 | struct tcm_qla2xxx_lport, lport_wwn); | |
1147 | struct scsi_qla_host *vha = lport->qla_vha; | |
1148 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1149 | struct tcm_qla2xxx_tpg, se_tpg); | |
1150 | unsigned long op; | |
1151 | int rc; | |
1152 | ||
1153 | rc = kstrtoul(page, 0, &op); | |
1154 | if (rc < 0) { | |
1155 | pr_err("kstrtoul() returned %d\n", rc); | |
1156 | return -EINVAL; | |
1157 | } | |
1158 | if ((op != 1) && (op != 0)) { | |
1159 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1160 | return -EINVAL; | |
1161 | } | |
1162 | if (op) { | |
1163 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1164 | return -EEXIST; | |
1165 | ||
1166 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1167 | qlt_enable_vha(vha); | |
1168 | } else { | |
1169 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1170 | return count; | |
1171 | ||
1172 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1173 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1174 | } | |
1175 | ||
1176 | return count; | |
1177 | } | |
1178 | ||
1179 | TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); | |
1180 | ||
1181 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
1182 | &tcm_qla2xxx_npiv_tpg_enable.attr, | |
1183 | NULL, | |
1184 | }; | |
1185 | ||
75f8c1f6 NB |
1186 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1187 | struct se_wwn *wwn, | |
1188 | struct config_group *group, | |
1189 | const char *name) | |
1190 | { | |
1191 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1192 | struct tcm_qla2xxx_lport, lport_wwn); | |
1193 | struct tcm_qla2xxx_tpg *tpg; | |
1194 | unsigned long tpgt; | |
1195 | int ret; | |
1196 | ||
1197 | if (strstr(name, "tpgt_") != name) | |
1198 | return ERR_PTR(-EINVAL); | |
1199 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1200 | return ERR_PTR(-EINVAL); | |
1201 | ||
1202 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1203 | if (!tpg) { | |
1204 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1205 | return ERR_PTR(-ENOMEM); | |
1206 | } | |
1207 | tpg->lport = lport; | |
1208 | tpg->lport_tpgt = tpgt; | |
1209 | ||
0e8cd71c SK |
1210 | /* |
1211 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1212 | * NodeACLs | |
1213 | */ | |
1214 | tpg->tpg_attrib.generate_node_acls = 1; | |
1215 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1216 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1217 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1218 | ||
e4aae5af CH |
1219 | ret = core_tpg_register(&tcm_qla2xxx_npiv_ops, wwn, &tpg->se_tpg, |
1220 | SCSI_PROTOCOL_FCP); | |
75f8c1f6 NB |
1221 | if (ret < 0) { |
1222 | kfree(tpg); | |
1223 | return NULL; | |
1224 | } | |
0e8cd71c | 1225 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1226 | return &tpg->se_tpg; |
1227 | } | |
1228 | ||
1229 | /* | |
1230 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1231 | */ | |
1232 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | |
1233 | scsi_qla_host_t *vha, | |
1234 | const uint8_t *s_id) | |
1235 | { | |
75f8c1f6 NB |
1236 | struct tcm_qla2xxx_lport *lport; |
1237 | struct se_node_acl *se_nacl; | |
1238 | struct tcm_qla2xxx_nacl *nacl; | |
1239 | u32 key; | |
1240 | ||
0e8cd71c | 1241 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1242 | if (!lport) { |
1243 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1244 | dump_stack(); | |
1245 | return NULL; | |
1246 | } | |
1247 | ||
1248 | key = (((unsigned long)s_id[0] << 16) | | |
1249 | ((unsigned long)s_id[1] << 8) | | |
1250 | (unsigned long)s_id[2]); | |
1251 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); | |
1252 | ||
1253 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1254 | if (!se_nacl) { | |
1255 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1256 | return NULL; | |
1257 | } | |
1258 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1259 | se_nacl, se_nacl->initiatorname); | |
1260 | ||
1261 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1262 | if (!nacl->qla_tgt_sess) { | |
1263 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1264 | return NULL; | |
1265 | } | |
1266 | ||
1267 | return nacl->qla_tgt_sess; | |
1268 | } | |
1269 | ||
1270 | /* | |
1271 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1272 | */ | |
1273 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1274 | struct tcm_qla2xxx_lport *lport, | |
1275 | struct se_node_acl *new_se_nacl, | |
1276 | struct tcm_qla2xxx_nacl *nacl, | |
1277 | struct se_session *se_sess, | |
1278 | struct qla_tgt_sess *qla_tgt_sess, | |
1279 | uint8_t *s_id) | |
1280 | { | |
1281 | u32 key; | |
1282 | void *slot; | |
1283 | int rc; | |
1284 | ||
1285 | key = (((unsigned long)s_id[0] << 16) | | |
1286 | ((unsigned long)s_id[1] << 8) | | |
1287 | (unsigned long)s_id[2]); | |
1288 | pr_debug("set_sess_by_s_id: %06x\n", key); | |
1289 | ||
1290 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1291 | if (!slot) { | |
1292 | if (new_se_nacl) { | |
1293 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1294 | nacl->nport_id = key; | |
1295 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1296 | new_se_nacl, GFP_ATOMIC); | |
1297 | if (rc) | |
1298 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1299 | (int)key); | |
1300 | } else { | |
1301 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1302 | } | |
1303 | ||
1304 | qla_tgt_sess->se_sess = se_sess; | |
1305 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | if (nacl->qla_tgt_sess) { | |
1310 | if (new_se_nacl == NULL) { | |
1311 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1312 | btree_remove32(&lport->lport_fcport_map, key); | |
1313 | nacl->qla_tgt_sess = NULL; | |
1314 | return; | |
1315 | } | |
1316 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1317 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1318 | qla_tgt_sess->se_sess = se_sess; | |
1319 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1320 | return; | |
1321 | } | |
1322 | ||
1323 | if (new_se_nacl == NULL) { | |
1324 | pr_debug("Clearing existing fc_port entry\n"); | |
1325 | btree_remove32(&lport->lport_fcport_map, key); | |
1326 | return; | |
1327 | } | |
1328 | ||
1329 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | |
1330 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1331 | qla_tgt_sess->se_sess = se_sess; | |
1332 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1333 | ||
1334 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | |
1335 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1336 | } | |
1337 | ||
1338 | /* | |
1339 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1340 | */ | |
1341 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | |
1342 | scsi_qla_host_t *vha, | |
1343 | const uint16_t loop_id) | |
1344 | { | |
75f8c1f6 NB |
1345 | struct tcm_qla2xxx_lport *lport; |
1346 | struct se_node_acl *se_nacl; | |
1347 | struct tcm_qla2xxx_nacl *nacl; | |
1348 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1349 | ||
0e8cd71c | 1350 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1351 | if (!lport) { |
1352 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1353 | dump_stack(); | |
1354 | return NULL; | |
1355 | } | |
1356 | ||
1357 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1358 | ||
1359 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1360 | se_nacl = fc_loopid->se_nacl; | |
1361 | if (!se_nacl) { | |
1362 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1363 | loop_id); | |
1364 | return NULL; | |
1365 | } | |
1366 | ||
1367 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1368 | ||
1369 | if (!nacl->qla_tgt_sess) { | |
1370 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1371 | return NULL; | |
1372 | } | |
1373 | ||
1374 | return nacl->qla_tgt_sess; | |
1375 | } | |
1376 | ||
1377 | /* | |
1378 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1379 | */ | |
1380 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1381 | struct tcm_qla2xxx_lport *lport, | |
1382 | struct se_node_acl *new_se_nacl, | |
1383 | struct tcm_qla2xxx_nacl *nacl, | |
1384 | struct se_session *se_sess, | |
1385 | struct qla_tgt_sess *qla_tgt_sess, | |
1386 | uint16_t loop_id) | |
1387 | { | |
1388 | struct se_node_acl *saved_nacl; | |
1389 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1390 | ||
1391 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1392 | ||
1393 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1394 | lport->lport_loopid_map)[loop_id]; | |
1395 | ||
1396 | saved_nacl = fc_loopid->se_nacl; | |
1397 | if (!saved_nacl) { | |
1398 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1399 | fc_loopid->se_nacl = new_se_nacl; | |
1400 | if (qla_tgt_sess->se_sess != se_sess) | |
1401 | qla_tgt_sess->se_sess = se_sess; | |
1402 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1403 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1404 | return; | |
1405 | } | |
1406 | ||
1407 | if (nacl->qla_tgt_sess) { | |
1408 | if (new_se_nacl == NULL) { | |
1409 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1410 | fc_loopid->se_nacl = NULL; | |
1411 | nacl->qla_tgt_sess = NULL; | |
1412 | return; | |
1413 | } | |
1414 | ||
1415 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1416 | fc_loopid->se_nacl = new_se_nacl; | |
1417 | if (qla_tgt_sess->se_sess != se_sess) | |
1418 | qla_tgt_sess->se_sess = se_sess; | |
1419 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1420 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1421 | return; | |
1422 | } | |
1423 | ||
1424 | if (new_se_nacl == NULL) { | |
1425 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1426 | fc_loopid->se_nacl = NULL; | |
1427 | return; | |
1428 | } | |
1429 | ||
1430 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); | |
1431 | fc_loopid->se_nacl = new_se_nacl; | |
1432 | if (qla_tgt_sess->se_sess != se_sess) | |
1433 | qla_tgt_sess->se_sess = se_sess; | |
1434 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1435 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1436 | ||
1437 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | |
1438 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1439 | } | |
1440 | ||
f2d5d9b9 NB |
1441 | /* |
1442 | * Should always be called with qla_hw_data->hardware_lock held. | |
1443 | */ | |
1444 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
1445 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | |
1446 | { | |
1447 | struct se_session *se_sess = sess->se_sess; | |
1448 | unsigned char be_sid[3]; | |
1449 | ||
1450 | be_sid[0] = sess->s_id.b.domain; | |
1451 | be_sid[1] = sess->s_id.b.area; | |
1452 | be_sid[2] = sess->s_id.b.al_pa; | |
1453 | ||
1454 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1455 | sess, be_sid); | |
1456 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1457 | sess, sess->loop_id); | |
1458 | } | |
1459 | ||
75f8c1f6 NB |
1460 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
1461 | { | |
1462 | struct qla_tgt *tgt = sess->tgt; | |
1463 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1464 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 NB |
1465 | struct se_session *se_sess; |
1466 | struct se_node_acl *se_nacl; | |
1467 | struct tcm_qla2xxx_lport *lport; | |
1468 | struct tcm_qla2xxx_nacl *nacl; | |
75f8c1f6 NB |
1469 | |
1470 | BUG_ON(in_interrupt()); | |
1471 | ||
1472 | se_sess = sess->se_sess; | |
1473 | if (!se_sess) { | |
1474 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | |
1475 | dump_stack(); | |
1476 | return; | |
1477 | } | |
1478 | se_nacl = se_sess->se_node_acl; | |
1479 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1480 | ||
0e8cd71c | 1481 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1482 | if (!lport) { |
1483 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1484 | dump_stack(); | |
1485 | return; | |
1486 | } | |
be646c2d | 1487 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1488 | |
1489 | transport_deregister_session_configfs(sess->se_sess); | |
1490 | transport_deregister_session(sess->se_sess); | |
1491 | } | |
1492 | ||
1493 | /* | |
1494 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1495 | * to locate struct se_node_acl | |
1496 | */ | |
1497 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1498 | scsi_qla_host_t *vha, | |
1499 | unsigned char *fc_wwpn, | |
1500 | void *qla_tgt_sess, | |
1501 | uint8_t *s_id, | |
1502 | uint16_t loop_id) | |
1503 | { | |
1504 | struct qla_hw_data *ha = vha->hw; | |
1505 | struct tcm_qla2xxx_lport *lport; | |
1506 | struct tcm_qla2xxx_tpg *tpg; | |
1507 | struct tcm_qla2xxx_nacl *nacl; | |
1508 | struct se_portal_group *se_tpg; | |
1509 | struct se_node_acl *se_nacl; | |
1510 | struct se_session *se_sess; | |
1511 | struct qla_tgt_sess *sess = qla_tgt_sess; | |
1512 | unsigned char port_name[36]; | |
1513 | unsigned long flags; | |
51a07f84 NB |
1514 | int num_tags = (ha->fw_xcb_count) ? ha->fw_xcb_count : |
1515 | TCM_QLA2XXX_DEFAULT_TAGS; | |
75f8c1f6 | 1516 | |
0e8cd71c | 1517 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1518 | if (!lport) { |
1519 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1520 | dump_stack(); | |
1521 | return -EINVAL; | |
1522 | } | |
1523 | /* | |
1524 | * Locate the TPG=1 reference.. | |
1525 | */ | |
1526 | tpg = lport->tpg_1; | |
1527 | if (!tpg) { | |
1528 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1529 | return -EINVAL; | |
1530 | } | |
1531 | se_tpg = &tpg->se_tpg; | |
1532 | ||
51a07f84 NB |
1533 | se_sess = transport_init_session_tags(num_tags, |
1534 | sizeof(struct qla_tgt_cmd), | |
59bb0ff5 | 1535 | TARGET_PROT_ALL); |
75f8c1f6 NB |
1536 | if (IS_ERR(se_sess)) { |
1537 | pr_err("Unable to initialize struct se_session\n"); | |
1538 | return PTR_ERR(se_sess); | |
1539 | } | |
1540 | /* | |
1541 | * Format the FCP Initiator port_name into colon seperated values to | |
1542 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1543 | */ | |
1544 | memset(&port_name, 0, 36); | |
3c9786e5 | 1545 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1546 | /* |
1547 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1548 | * via ConfigFS, or via running in TPG demo mode. | |
1549 | */ | |
1550 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, | |
1551 | port_name); | |
1552 | if (!se_sess->se_node_acl) { | |
1553 | transport_free_session(se_sess); | |
1554 | return -EINVAL; | |
1555 | } | |
1556 | se_nacl = se_sess->se_node_acl; | |
1557 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1558 | /* | |
1559 | * And now setup the new se_nacl and session pointers into our HW lport | |
1560 | * mappings for fabric S_ID and LOOP_ID. | |
1561 | */ | |
1562 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1563 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, | |
1564 | qla_tgt_sess, s_id); | |
1565 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, | |
1566 | qla_tgt_sess, loop_id); | |
1567 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1568 | /* | |
1569 | * Finally register the new FC Nexus with TCM | |
1570 | */ | |
75c3d0bf | 1571 | transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); |
75f8c1f6 NB |
1572 | |
1573 | return 0; | |
1574 | } | |
1575 | ||
c8292d1d RD |
1576 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
1577 | uint16_t loop_id, bool conf_compl_supported) | |
1578 | { | |
1579 | struct qla_tgt *tgt = sess->tgt; | |
1580 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1581 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1582 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1583 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1584 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1585 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1586 | u32 key; | |
1587 | ||
1588 | ||
1589 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) | |
7b833558 OK |
1590 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1591 | sess, sess->port_name, | |
1592 | sess->loop_id, loop_id, sess->s_id.b.domain, | |
1593 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, | |
1594 | s_id.b.area, s_id.b.al_pa); | |
c8292d1d RD |
1595 | |
1596 | if (sess->loop_id != loop_id) { | |
1597 | /* | |
1598 | * Because we can shuffle loop IDs around and we | |
1599 | * update different sessions non-atomically, we might | |
1600 | * have overwritten this session's old loop ID | |
1601 | * already, and we might end up overwriting some other | |
1602 | * session that will be updated later. So we have to | |
1603 | * be extra careful and we can't warn about those things... | |
1604 | */ | |
1605 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1606 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1607 | ||
1608 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1609 | ||
1610 | sess->loop_id = loop_id; | |
1611 | } | |
1612 | ||
1613 | if (sess->s_id.b24 != s_id.b24) { | |
1614 | key = (((u32) sess->s_id.b.domain << 16) | | |
1615 | ((u32) sess->s_id.b.area << 8) | | |
1616 | ((u32) sess->s_id.b.al_pa)); | |
1617 | ||
1618 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
1619 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, | |
1620 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1621 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1622 | else | |
1623 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
1624 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1625 | ||
1626 | key = (((u32) s_id.b.domain << 16) | | |
1627 | ((u32) s_id.b.area << 8) | | |
1628 | ((u32) s_id.b.al_pa)); | |
1629 | ||
1630 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1631 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1632 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1633 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1634 | } else { | |
1635 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); | |
1636 | } | |
1637 | ||
1638 | sess->s_id = s_id; | |
1639 | nacl->nport_id = key; | |
1640 | } | |
1641 | ||
1642 | sess->conf_compl_supported = conf_compl_supported; | |
1643 | } | |
1644 | ||
75f8c1f6 NB |
1645 | /* |
1646 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1647 | */ | |
1648 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1649 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1650 | .handle_data = tcm_qla2xxx_handle_data, | |
f83adb61 | 1651 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
75f8c1f6 NB |
1652 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
1653 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1654 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1655 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1656 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1657 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1658 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1659 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1660 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
1661 | .put_sess = tcm_qla2xxx_put_sess, | |
1662 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, | |
1663 | }; | |
1664 | ||
1665 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1666 | { | |
1667 | int rc; | |
1668 | ||
1669 | rc = btree_init32(&lport->lport_fcport_map); | |
1670 | if (rc) { | |
1671 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1672 | return rc; | |
1673 | } | |
1674 | ||
1675 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1676 | 65536); | |
1677 | if (!lport->lport_loopid_map) { | |
1678 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1679 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1680 | btree_destroy32(&lport->lport_fcport_map); | |
1681 | return -ENOMEM; | |
1682 | } | |
1683 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1684 | * 65536); | |
1685 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1686 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1687 | return 0; | |
1688 | } | |
1689 | ||
49a47f2c NB |
1690 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1691 | void *target_lport_ptr, | |
1692 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1693 | { |
49a47f2c NB |
1694 | struct qla_hw_data *ha = vha->hw; |
1695 | struct tcm_qla2xxx_lport *lport = | |
1696 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1697 | /* |
49a47f2c | 1698 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1699 | */ |
49a47f2c NB |
1700 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1701 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1702 | lport->qla_vha = vha; |
1703 | ||
1704 | return 0; | |
1705 | } | |
1706 | ||
1707 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1708 | struct target_fabric_configfs *tf, | |
1709 | struct config_group *group, | |
1710 | const char *name) | |
1711 | { | |
1712 | struct tcm_qla2xxx_lport *lport; | |
1713 | u64 wwpn; | |
1714 | int ret = -ENODEV; | |
1715 | ||
1716 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1717 | return ERR_PTR(-EINVAL); | |
1718 | ||
1719 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1720 | if (!lport) { | |
1721 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1722 | return ERR_PTR(-ENOMEM); | |
1723 | } | |
1724 | lport->lport_wwpn = wwpn; | |
1725 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1726 | wwpn); | |
c046aa0f | 1727 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1728 | |
1729 | ret = tcm_qla2xxx_init_lport(lport); | |
1730 | if (ret != 0) | |
1731 | goto out; | |
1732 | ||
49a47f2c NB |
1733 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1734 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1735 | if (ret != 0) |
1736 | goto out_lport; | |
1737 | ||
1738 | return &lport->lport_wwn; | |
1739 | out_lport: | |
1740 | vfree(lport->lport_loopid_map); | |
1741 | btree_destroy32(&lport->lport_fcport_map); | |
1742 | out: | |
1743 | kfree(lport); | |
1744 | return ERR_PTR(ret); | |
1745 | } | |
1746 | ||
1747 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1748 | { | |
1749 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1750 | struct tcm_qla2xxx_lport, lport_wwn); | |
1751 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1752 | struct se_node_acl *node; |
1753 | u32 key = 0; | |
1754 | ||
1755 | /* | |
1756 | * Call into qla2x_target.c LLD logic to complete the | |
1757 | * shutdown of struct qla_tgt after the call to | |
1758 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1759 | */ | |
0e8cd71c SK |
1760 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1761 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1762 | |
1763 | qlt_lport_deregister(vha); | |
1764 | ||
1765 | vfree(lport->lport_loopid_map); | |
1766 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1767 | btree_remove32(&lport->lport_fcport_map, key); | |
1768 | btree_destroy32(&lport->lport_fcport_map); | |
1769 | kfree(lport); | |
1770 | } | |
1771 | ||
49a47f2c NB |
1772 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1773 | void *target_lport_ptr, | |
1774 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1775 | { | |
1776 | struct fc_vport *vport; | |
1777 | struct Scsi_Host *sh = base_vha->host; | |
1778 | struct scsi_qla_host *npiv_vha; | |
1779 | struct tcm_qla2xxx_lport *lport = | |
1780 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1781 | struct tcm_qla2xxx_lport *base_lport = |
1782 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
1783 | struct tcm_qla2xxx_tpg *base_tpg; | |
49a47f2c NB |
1784 | struct fc_vport_identifiers vport_id; |
1785 | ||
1786 | if (!qla_tgt_mode_enabled(base_vha)) { | |
1787 | pr_err("qla2xxx base_vha not enabled for target mode\n"); | |
1788 | return -EPERM; | |
1789 | } | |
1790 | ||
7474f52a NB |
1791 | if (!base_lport || !base_lport->tpg_1 || |
1792 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1793 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1794 | return -EPERM; | |
1795 | } | |
1796 | base_tpg = base_lport->tpg_1; | |
1797 | ||
49a47f2c NB |
1798 | memset(&vport_id, 0, sizeof(vport_id)); |
1799 | vport_id.port_name = npiv_wwpn; | |
1800 | vport_id.node_name = npiv_wwnn; | |
1801 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1802 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1803 | vport_id.disable = false; | |
1804 | ||
1805 | vport = fc_vport_create(sh, 0, &vport_id); | |
1806 | if (!vport) { | |
1807 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1808 | return -ENODEV; | |
1809 | } | |
1810 | /* | |
1811 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1812 | */ | |
1813 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1814 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1815 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1816 | scsi_host_get(npiv_vha->host); |
1817 | return 0; | |
1818 | } | |
1819 | ||
1820 | ||
75f8c1f6 NB |
1821 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1822 | struct target_fabric_configfs *tf, | |
1823 | struct config_group *group, | |
1824 | const char *name) | |
1825 | { | |
1826 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1827 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1828 | char *p, tmp[128]; | |
75f8c1f6 NB |
1829 | int ret; |
1830 | ||
49a47f2c NB |
1831 | snprintf(tmp, 128, "%s", name); |
1832 | ||
1833 | p = strchr(tmp, '@'); | |
1834 | if (!p) { | |
1835 | pr_err("Unable to locate NPIV '@' seperator\n"); | |
1836 | return ERR_PTR(-EINVAL); | |
1837 | } | |
1838 | *p++ = '\0'; | |
1839 | ||
1840 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1841 | return ERR_PTR(-EINVAL); | |
1842 | ||
1843 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1844 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1845 | return ERR_PTR(-EINVAL); |
1846 | ||
1847 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1848 | if (!lport) { | |
1849 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1850 | return ERR_PTR(-ENOMEM); | |
1851 | } | |
1852 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1853 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1854 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1855 | |
0e8cd71c | 1856 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1857 | if (ret != 0) |
1858 | goto out; | |
1859 | ||
49a47f2c NB |
1860 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1861 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1862 | if (ret != 0) |
1863 | goto out_lport; | |
1864 | ||
75f8c1f6 | 1865 | return &lport->lport_wwn; |
0e8cd71c SK |
1866 | out_lport: |
1867 | vfree(lport->lport_loopid_map); | |
1868 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1869 | out: |
1870 | kfree(lport); | |
1871 | return ERR_PTR(ret); | |
1872 | } | |
1873 | ||
1874 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1875 | { | |
1876 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1877 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1878 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1879 | struct qla_hw_data *ha = npiv_vha->hw; | |
1880 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1881 | ||
1882 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1883 | /* |
0e8cd71c | 1884 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1885 | */ |
49a47f2c NB |
1886 | fc_vport_terminate(npiv_vha->fc_vport); |
1887 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1888 | kfree(lport); |
1889 | } | |
1890 | ||
1891 | ||
1892 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( | |
1893 | struct target_fabric_configfs *tf, | |
1894 | char *page) | |
1895 | { | |
1896 | return sprintf(page, | |
1897 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
1898 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1899 | utsname()->machine); | |
1900 | } | |
1901 | ||
1902 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); | |
1903 | ||
1904 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
1905 | &tcm_qla2xxx_wwn_version.attr, | |
1906 | NULL, | |
1907 | }; | |
1908 | ||
9ac8928e CH |
1909 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1910 | .module = THIS_MODULE, | |
1911 | .name = "qla2xxx", | |
144bc4c2 | 1912 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1913 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
75f8c1f6 NB |
1914 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1915 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1916 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, |
1917 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
1918 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
1919 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, | |
1920 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1921 | .tpg_check_demo_mode_write_protect = | |
1922 | tcm_qla2xxx_check_demo_write_protect, | |
1923 | .tpg_check_prod_mode_write_protect = | |
1924 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1925 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1926 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1927 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1928 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1929 | .release_cmd = tcm_qla2xxx_release_cmd, | |
aaf68b75 | 1930 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
1931 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
1932 | .close_session = tcm_qla2xxx_close_session, | |
1933 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1934 | .sess_get_initiator_sid = NULL, | |
1935 | .write_pending = tcm_qla2xxx_write_pending, | |
1936 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1937 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
1938 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
1939 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
1940 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1941 | .queue_status = tcm_qla2xxx_queue_status, | |
1942 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1943 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1944 | /* |
1945 | * Setup function pointers for generic logic in | |
1946 | * target_core_fabric_configfs.c | |
1947 | */ | |
1948 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1949 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1950 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1951 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1952 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1953 | |
1954 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1955 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1956 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1957 | }; |
1958 | ||
9ac8928e CH |
1959 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1960 | .module = THIS_MODULE, | |
1961 | .name = "qla2xxx_npiv", | |
144bc4c2 | 1962 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1963 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
84197a36 | 1964 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1965 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
75f8c1f6 NB |
1966 | .tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id, |
1967 | .tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len, | |
1968 | .tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id, | |
0e8cd71c SK |
1969 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1970 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1971 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1972 | .tpg_check_prod_mode_write_protect = | |
1973 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1974 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1975 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1976 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 1977 | .release_cmd = tcm_qla2xxx_release_cmd, |
aaf68b75 | 1978 | .put_session = tcm_qla2xxx_put_session, |
75f8c1f6 NB |
1979 | .shutdown_session = tcm_qla2xxx_shutdown_session, |
1980 | .close_session = tcm_qla2xxx_close_session, | |
1981 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1982 | .sess_get_initiator_sid = NULL, | |
1983 | .write_pending = tcm_qla2xxx_write_pending, | |
1984 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1985 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
1986 | .get_task_tag = tcm_qla2xxx_get_task_tag, | |
1987 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, | |
1988 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1989 | .queue_status = tcm_qla2xxx_queue_status, | |
1990 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1991 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1992 | /* |
1993 | * Setup function pointers for generic logic in | |
1994 | * target_core_fabric_configfs.c | |
1995 | */ | |
1996 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1997 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1998 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1999 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 2000 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
2001 | |
2002 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
2003 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
2004 | }; |
2005 | ||
2006 | static int tcm_qla2xxx_register_configfs(void) | |
2007 | { | |
75f8c1f6 NB |
2008 | int ret; |
2009 | ||
2010 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
2011 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
2012 | utsname()->machine); | |
9ac8928e CH |
2013 | |
2014 | ret = target_register_template(&tcm_qla2xxx_ops); | |
2015 | if (ret) | |
75f8c1f6 | 2016 | return ret; |
75f8c1f6 | 2017 | |
9ac8928e CH |
2018 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
2019 | if (ret) | |
75f8c1f6 | 2020 | goto out_fabric; |
75f8c1f6 NB |
2021 | |
2022 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
2023 | WQ_MEM_RECLAIM, 0); | |
2024 | if (!tcm_qla2xxx_free_wq) { | |
2025 | ret = -ENOMEM; | |
2026 | goto out_fabric_npiv; | |
2027 | } | |
2028 | ||
2029 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
2030 | if (!tcm_qla2xxx_cmd_wq) { | |
2031 | ret = -ENOMEM; | |
2032 | goto out_free_wq; | |
2033 | } | |
2034 | ||
2035 | return 0; | |
2036 | ||
2037 | out_free_wq: | |
2038 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2039 | out_fabric_npiv: | |
9ac8928e | 2040 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 2041 | out_fabric: |
9ac8928e | 2042 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
2043 | return ret; |
2044 | } | |
2045 | ||
2046 | static void tcm_qla2xxx_deregister_configfs(void) | |
2047 | { | |
2048 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
2049 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2050 | ||
9ac8928e CH |
2051 | target_unregister_template(&tcm_qla2xxx_ops); |
2052 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
2053 | } |
2054 | ||
2055 | static int __init tcm_qla2xxx_init(void) | |
2056 | { | |
2057 | int ret; | |
2058 | ||
2059 | ret = tcm_qla2xxx_register_configfs(); | |
2060 | if (ret < 0) | |
2061 | return ret; | |
2062 | ||
2063 | return 0; | |
2064 | } | |
2065 | ||
2066 | static void __exit tcm_qla2xxx_exit(void) | |
2067 | { | |
2068 | tcm_qla2xxx_deregister_configfs(); | |
2069 | } | |
2070 | ||
2071 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); | |
2072 | MODULE_LICENSE("GPL"); | |
2073 | module_init(tcm_qla2xxx_init); | |
2074 | module_exit(tcm_qla2xxx_exit); |