Commit | Line | Data |
---|---|---|
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> | |
5538d294 | 30 | #include <linux/vmalloc.h> |
75f8c1f6 NB |
31 | #include <linux/init.h> |
32 | #include <linux/list.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/kthread.h> | |
35 | #include <linux/types.h> | |
36 | #include <linux/string.h> | |
37 | #include <linux/configfs.h> | |
38 | #include <linux/ctype.h> | |
75f8c1f6 NB |
39 | #include <asm/unaligned.h> |
40 | #include <scsi/scsi.h> | |
41 | #include <scsi/scsi_host.h> | |
42 | #include <scsi/scsi_device.h> | |
43 | #include <scsi/scsi_cmnd.h> | |
44 | #include <target/target_core_base.h> | |
45 | #include <target/target_core_fabric.h> | |
46 | #include <target/target_core_fabric_configfs.h> | |
75f8c1f6 NB |
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 | ||
75f8c1f6 NB |
56 | /* |
57 | * Parse WWN. | |
58 | * If strict, we require lower-case hex and colon separators to be sure | |
59 | * the name is the same as what would be generated by ft_format_wwn() | |
60 | * so the name and wwn are mapped one-to-one. | |
61 | */ | |
62 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
63 | { | |
64 | const char *cp; | |
65 | char c; | |
66 | u32 nibble; | |
67 | u32 byte = 0; | |
68 | u32 pos = 0; | |
69 | u32 err; | |
70 | ||
71 | *wwn = 0; | |
72 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
73 | c = *cp; | |
74 | if (c == '\n' && cp[1] == '\0') | |
75 | continue; | |
76 | if (strict && pos++ == 2 && byte++ < 7) { | |
77 | pos = 0; | |
78 | if (c == ':') | |
79 | continue; | |
80 | err = 1; | |
81 | goto fail; | |
82 | } | |
83 | if (c == '\0') { | |
84 | err = 2; | |
85 | if (strict && byte != 8) | |
86 | goto fail; | |
87 | return cp - name; | |
88 | } | |
89 | err = 3; | |
90 | if (isdigit(c)) | |
91 | nibble = c - '0'; | |
92 | else if (isxdigit(c) && (islower(c) || !strict)) | |
93 | nibble = tolower(c) - 'a' + 10; | |
94 | else | |
95 | goto fail; | |
96 | *wwn = (*wwn << 4) | nibble; | |
97 | } | |
98 | err = 4; | |
99 | fail: | |
100 | pr_debug("err %u len %zu pos %u byte %u\n", | |
101 | err, cp - name, pos, byte); | |
102 | return -1; | |
103 | } | |
104 | ||
105 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
106 | { | |
107 | u8 b[8]; | |
108 | ||
109 | put_unaligned_be64(wwn, b); | |
110 | return snprintf(buf, len, | |
111 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
112 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
113 | } | |
114 | ||
115 | static char *tcm_qla2xxx_get_fabric_name(void) | |
116 | { | |
117 | return "qla2xxx"; | |
118 | } | |
119 | ||
120 | /* | |
121 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
122 | */ | |
123 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
124 | { | |
d4f75b56 | 125 | unsigned int i, j; |
75f8c1f6 NB |
126 | u8 wwn[8]; |
127 | ||
128 | memset(wwn, 0, sizeof(wwn)); | |
129 | ||
130 | /* Validate and store the new name */ | |
131 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
132 | int value; |
133 | ||
75f8c1f6 NB |
134 | value = hex_to_bin(*ns++); |
135 | if (value >= 0) | |
136 | j = (j << 4) | value; | |
137 | else | |
138 | return -EINVAL; | |
139 | ||
140 | if (i % 2) { | |
141 | wwn[i/2] = j & 0xff; | |
142 | j = 0; | |
143 | } | |
144 | } | |
145 | ||
146 | *nm = wwn_to_u64(wwn); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | /* | |
151 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
152 | * store_fc_host_vport_create() | |
153 | */ | |
154 | static int tcm_qla2xxx_npiv_parse_wwn( | |
155 | const char *name, | |
156 | size_t count, | |
157 | u64 *wwpn, | |
158 | u64 *wwnn) | |
159 | { | |
160 | unsigned int cnt = count; | |
161 | int rc; | |
162 | ||
163 | *wwpn = 0; | |
164 | *wwnn = 0; | |
165 | ||
166 | /* count may include a LF at end of string */ | |
0e8cd71c | 167 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
168 | cnt--; |
169 | ||
170 | /* validate we have enough characters for WWPN */ | |
171 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
172 | return -EINVAL; | |
173 | ||
174 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
175 | if (rc != 0) | |
176 | return rc; | |
177 | ||
178 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
179 | if (rc != 0) | |
180 | return rc; | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
75f8c1f6 NB |
185 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
186 | { | |
187 | return "qla2xxx_npiv"; | |
188 | } | |
189 | ||
75f8c1f6 NB |
190 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
191 | { | |
192 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
193 | struct tcm_qla2xxx_tpg, se_tpg); | |
194 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
195 | ||
c046aa0f | 196 | return lport->lport_naa_name; |
75f8c1f6 NB |
197 | } |
198 | ||
75f8c1f6 NB |
199 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
200 | { | |
201 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
202 | struct tcm_qla2xxx_tpg, se_tpg); | |
203 | return tpg->lport_tpgt; | |
204 | } | |
205 | ||
75f8c1f6 NB |
206 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
207 | { | |
208 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
209 | struct tcm_qla2xxx_tpg, se_tpg); | |
210 | ||
a309f489 | 211 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
212 | } |
213 | ||
214 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
215 | { | |
216 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
217 | struct tcm_qla2xxx_tpg, se_tpg); | |
218 | ||
a309f489 | 219 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
220 | } |
221 | ||
222 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
223 | { | |
224 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
225 | struct tcm_qla2xxx_tpg, se_tpg); | |
226 | ||
a309f489 | 227 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
228 | } |
229 | ||
230 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
231 | { | |
232 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
233 | struct tcm_qla2xxx_tpg, se_tpg); | |
234 | ||
a309f489 | 235 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
236 | } |
237 | ||
de04a8aa AG |
238 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
239 | { | |
240 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
241 | struct tcm_qla2xxx_tpg, se_tpg); | |
242 | ||
a309f489 | 243 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
244 | } |
245 | ||
64b16887 NB |
246 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
247 | { | |
248 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
249 | struct tcm_qla2xxx_tpg, se_tpg); | |
250 | ||
251 | return tpg->tpg_attrib.fabric_prot_type; | |
252 | } | |
253 | ||
75f8c1f6 NB |
254 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
255 | { | |
256 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
257 | struct tcm_qla2xxx_tpg, se_tpg); | |
258 | ||
259 | return tpg->lport_tpgt; | |
260 | } | |
261 | ||
262 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
263 | { | |
264 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
265 | struct qla_tgt_mgmt_cmd, free_work); | |
266 | ||
267 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
268 | } | |
269 | ||
270 | /* | |
271 | * Called from qla_target_template->free_mcmd(), and will call | |
272 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
273 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
274 | */ | |
275 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
276 | { | |
277 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
278 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
279 | } | |
280 | ||
281 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
282 | { | |
283 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
284 | ||
e07f8f65 SK |
285 | cmd->cmd_in_wq = 0; |
286 | ||
287 | WARN_ON(cmd->cmd_flags & BIT_16); | |
288 | ||
289 | cmd->cmd_flags |= BIT_16; | |
75f8c1f6 NB |
290 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
291 | } | |
292 | ||
293 | /* | |
294 | * Called from qla_target_template->free_cmd(), and will call | |
295 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
296 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
297 | */ | |
298 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
299 | { | |
e07f8f65 | 300 | cmd->cmd_in_wq = 1; |
75f8c1f6 NB |
301 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
302 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
303 | } | |
304 | ||
305 | /* | |
306 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
307 | */ | |
308 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
309 | { | |
e07f8f65 SK |
310 | struct qla_tgt_cmd *cmd; |
311 | ||
312 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
313 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
314 | cmd->cmd_flags |= BIT_14; | |
315 | } | |
316 | ||
afc16604 | 317 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
318 | } |
319 | ||
320 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
321 | * fabric descriptor @se_cmd command to release | |
322 | */ | |
323 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
324 | { | |
325 | struct qla_tgt_cmd *cmd; | |
326 | ||
327 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
328 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
329 | struct qla_tgt_mgmt_cmd, se_cmd); | |
330 | qlt_free_mcmd(mcmd); | |
331 | return; | |
332 | } | |
333 | ||
334 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
335 | qlt_free_cmd(cmd); | |
336 | } | |
337 | ||
338 | static int tcm_qla2xxx_shutdown_session(struct se_session *se_sess) | |
339 | { | |
340 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
341 | struct scsi_qla_host *vha; | |
342 | unsigned long flags; | |
343 | ||
344 | BUG_ON(!sess); | |
345 | vha = sess->vha; | |
346 | ||
347 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
1c7b13fe | 348 | target_sess_cmd_list_set_waiting(se_sess); |
75f8c1f6 NB |
349 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); |
350 | ||
351 | return 1; | |
352 | } | |
353 | ||
354 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) | |
355 | { | |
356 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
357 | struct scsi_qla_host *vha; | |
358 | unsigned long flags; | |
359 | ||
360 | BUG_ON(!sess); | |
361 | vha = sess->vha; | |
362 | ||
363 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
364 | qlt_unreg_sess(sess); | |
365 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
366 | } | |
367 | ||
368 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
369 | { | |
370 | return 0; | |
371 | } | |
372 | ||
75f8c1f6 NB |
373 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
374 | { | |
375 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
376 | struct qla_tgt_cmd, se_cmd); | |
e5fdee87 | 377 | cmd->cmd_flags |= BIT_3; |
75f8c1f6 | 378 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 379 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
380 | |
381 | cmd->sg_cnt = se_cmd->t_data_nents; | |
382 | cmd->sg = se_cmd->t_data_sg; | |
383 | ||
f83adb61 QT |
384 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
385 | cmd->prot_sg = se_cmd->t_prot_sg; | |
386 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
387 | se_cmd->pi_err = 0; | |
388 | ||
75f8c1f6 NB |
389 | /* |
390 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
391 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
392 | */ | |
393 | return qlt_rdy_to_xfer(cmd); | |
394 | } | |
395 | ||
396 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
397 | { | |
398 | unsigned long flags; | |
399 | /* | |
400 | * Check for WRITE_PENDING status to determine if we need to wait for | |
401 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
402 | */ | |
403 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
404 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
405 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
406 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
407 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
fd4e1393 | 408 | 3 * HZ); |
75f8c1f6 NB |
409 | return 0; |
410 | } | |
411 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
416 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
417 | { | |
418 | return; | |
419 | } | |
420 | ||
75f8c1f6 NB |
421 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
422 | { | |
423 | return 0; | |
424 | } | |
425 | ||
426 | /* | |
427 | * Called from process context in qla_target.c:qlt_do_work() code | |
428 | */ | |
429 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
430 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
431 | int data_dir, int bidi) | |
432 | { | |
433 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
434 | struct se_session *se_sess; | |
435 | struct qla_tgt_sess *sess; | |
436 | int flags = TARGET_SCF_ACK_KREF; | |
437 | ||
438 | if (bidi) | |
439 | flags |= TARGET_SCF_BIDI_OP; | |
440 | ||
441 | sess = cmd->sess; | |
442 | if (!sess) { | |
443 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | se_sess = sess->se_sess; | |
448 | if (!se_sess) { | |
449 | pr_err("Unable to locate active struct se_session\n"); | |
450 | return -EINVAL; | |
451 | } | |
452 | ||
d6dfc868 | 453 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
454 | cmd->unpacked_lun, data_length, fcp_task_attr, |
455 | data_dir, flags); | |
75f8c1f6 NB |
456 | } |
457 | ||
43381ce8 | 458 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
459 | { |
460 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
75f8c1f6 | 461 | |
75f8c1f6 NB |
462 | /* |
463 | * Ensure that the complete FCP WRITE payload has been received. | |
464 | * Otherwise return an exception via CHECK_CONDITION status. | |
465 | */ | |
e07f8f65 SK |
466 | cmd->cmd_in_wq = 0; |
467 | cmd->cmd_flags |= BIT_11; | |
75f8c1f6 NB |
468 | if (!cmd->write_data_transferred) { |
469 | /* | |
470 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
471 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
472 | */ | |
43381ce8 CH |
473 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
474 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
475 | return; | |
75f8c1f6 | 476 | } |
75f8c1f6 | 477 | |
f83adb61 QT |
478 | if (cmd->se_cmd.pi_err) |
479 | transport_generic_request_failure(&cmd->se_cmd, | |
480 | cmd->se_cmd.pi_err); | |
481 | else | |
482 | transport_generic_request_failure(&cmd->se_cmd, | |
483 | TCM_CHECK_CONDITION_ABORT_CMD); | |
484 | ||
43381ce8 | 485 | return; |
75f8c1f6 | 486 | } |
43381ce8 CH |
487 | |
488 | return target_execute_cmd(&cmd->se_cmd); | |
489 | } | |
490 | ||
491 | /* | |
492 | * Called from qla_target.c:qlt_do_ctio_completion() | |
493 | */ | |
494 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
495 | { | |
e07f8f65 SK |
496 | cmd->cmd_flags |= BIT_10; |
497 | cmd->cmd_in_wq = 1; | |
43381ce8 CH |
498 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
499 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
75f8c1f6 NB |
500 | } |
501 | ||
f83adb61 QT |
502 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
503 | { | |
504 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
505 | ||
506 | /* take an extra kref to prevent cmd free too early. | |
507 | * need to wait for SCSI status/check condition to | |
508 | * finish responding generate by transport_generic_request_failure. | |
509 | */ | |
510 | kref_get(&cmd->se_cmd.cmd_kref); | |
511 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); | |
512 | } | |
513 | ||
514 | /* | |
515 | * Called from qla_target.c:qlt_do_ctio_completion() | |
516 | */ | |
517 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) | |
518 | { | |
519 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); | |
520 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
521 | } | |
522 | ||
75f8c1f6 NB |
523 | /* |
524 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
525 | */ | |
9389c3c9 RD |
526 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
527 | uint8_t tmr_func, uint32_t tag) | |
75f8c1f6 NB |
528 | { |
529 | struct qla_tgt_sess *sess = mcmd->sess; | |
530 | struct se_cmd *se_cmd = &mcmd->se_cmd; | |
531 | ||
532 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
533 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | |
534 | } | |
535 | ||
536 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
537 | { | |
538 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
539 | struct qla_tgt_cmd, se_cmd); | |
540 | ||
e07f8f65 | 541 | cmd->cmd_flags |= BIT_4; |
75f8c1f6 | 542 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 543 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
544 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
545 | ||
546 | cmd->sg_cnt = se_cmd->t_data_nents; | |
547 | cmd->sg = se_cmd->t_data_sg; | |
548 | cmd->offset = 0; | |
549 | ||
f83adb61 QT |
550 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
551 | cmd->prot_sg = se_cmd->t_prot_sg; | |
552 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
553 | se_cmd->pi_err = 0; | |
554 | ||
75f8c1f6 NB |
555 | /* |
556 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
557 | */ | |
558 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
559 | se_cmd->scsi_status); | |
560 | } | |
561 | ||
562 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
563 | { | |
564 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
565 | struct qla_tgt_cmd, se_cmd); | |
566 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
567 | ||
568 | cmd->bufflen = se_cmd->data_length; | |
569 | cmd->sg = NULL; | |
570 | cmd->sg_cnt = 0; | |
571 | cmd->offset = 0; | |
b3faa2e8 | 572 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 | 573 | cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); |
e07f8f65 SK |
574 | if (cmd->cmd_flags & BIT_5) { |
575 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); | |
576 | dump_stack(); | |
577 | } | |
578 | cmd->cmd_flags |= BIT_5; | |
75f8c1f6 NB |
579 | |
580 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
581 | /* | |
582 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
583 | * for qla_tgt_xmit_response LLD code | |
584 | */ | |
b5aff3d2 RD |
585 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
586 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
587 | se_cmd->residual_count = 0; | |
588 | } | |
75f8c1f6 | 589 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 590 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
591 | |
592 | cmd->bufflen = 0; | |
593 | } | |
594 | /* | |
595 | * Now queue status response to qla2xxx LLD code and response ring | |
596 | */ | |
597 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
598 | } | |
599 | ||
b79fafac | 600 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
601 | { |
602 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
603 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
604 | struct qla_tgt_mgmt_cmd, se_cmd); | |
605 | ||
606 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
607 | mcmd, se_tmr->function, se_tmr->response); | |
608 | /* | |
609 | * Do translation between TCM TM response codes and | |
610 | * QLA2xxx FC TM response codes. | |
611 | */ | |
612 | switch (se_tmr->response) { | |
613 | case TMR_FUNCTION_COMPLETE: | |
614 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
615 | break; | |
616 | case TMR_TASK_DOES_NOT_EXIST: | |
617 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
618 | break; | |
619 | case TMR_FUNCTION_REJECTED: | |
620 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
621 | break; | |
622 | case TMR_LUN_DOES_NOT_EXIST: | |
623 | default: | |
624 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
625 | break; | |
626 | } | |
627 | /* | |
628 | * Queue the TM response to QLA2xxx LLD to build a | |
629 | * CTIO response packet. | |
630 | */ | |
631 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
632 | } |
633 | ||
131e6abc NB |
634 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
635 | { | |
636 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
637 | struct qla_tgt_cmd, se_cmd); | |
638 | struct scsi_qla_host *vha = cmd->vha; | |
639 | struct qla_hw_data *ha = vha->hw; | |
640 | ||
641 | if (!cmd->sg_mapped) | |
642 | return; | |
643 | ||
644 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); | |
645 | cmd->sg_mapped = 0; | |
646 | } | |
647 | ||
f2d5d9b9 NB |
648 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
649 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | |
75f8c1f6 NB |
650 | /* |
651 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
652 | */ | |
653 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | |
654 | { | |
655 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
656 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
657 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
658 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
659 | struct tcm_qla2xxx_lport, lport_wwn); | |
660 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
661 | struct tcm_qla2xxx_nacl, se_node_acl); | |
662 | void *node; | |
663 | ||
664 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
665 | ||
666 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
667 | if (WARN_ON(node && (node != se_nacl))) { |
668 | /* | |
669 | * The nacl no longer matches what we think it should be. | |
670 | * Most likely a new dynamic acl has been added while | |
671 | * someone dropped the hardware lock. It clearly is a | |
672 | * bug elsewhere, but this bit can't make things worse. | |
673 | */ | |
674 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
675 | node, GFP_ATOMIC); | |
676 | } | |
75f8c1f6 NB |
677 | |
678 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
679 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
680 | /* |
681 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
682 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
683 | * | |
684 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
685 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
686 | * I/O to complete, to avoid a race between session shutdown execution | |
687 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
688 | */ | |
689 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
690 | } |
691 | ||
aaf68b75 JE |
692 | static void tcm_qla2xxx_release_session(struct kref *kref) |
693 | { | |
694 | struct se_session *se_sess = container_of(kref, | |
695 | struct se_session, sess_kref); | |
696 | ||
697 | qlt_unreg_sess(se_sess->fabric_sess_ptr); | |
698 | } | |
699 | ||
75f8c1f6 NB |
700 | static void tcm_qla2xxx_put_sess(struct qla_tgt_sess *sess) |
701 | { | |
0e8cd71c SK |
702 | if (!sess) |
703 | return; | |
704 | ||
08234e3a JE |
705 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
706 | kref_put(&sess->se_sess->sess_kref, tcm_qla2xxx_release_session); | |
75f8c1f6 NB |
707 | } |
708 | ||
709 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) | |
710 | { | |
08234e3a JE |
711 | assert_spin_locked(&sess->vha->hw->hardware_lock); |
712 | target_sess_cmd_list_set_waiting(sess->se_sess); | |
75f8c1f6 NB |
713 | } |
714 | ||
c7d6a803 CH |
715 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
716 | const char *name) | |
75f8c1f6 | 717 | { |
c7d6a803 CH |
718 | struct tcm_qla2xxx_nacl *nacl = |
719 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 720 | u64 wwnn; |
75f8c1f6 NB |
721 | |
722 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 723 | return -EINVAL; |
75f8c1f6 | 724 | |
75f8c1f6 NB |
725 | nacl->nport_wwnn = wwnn; |
726 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 727 | |
c7d6a803 | 728 | return 0; |
75f8c1f6 NB |
729 | } |
730 | ||
731 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
732 | ||
733 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
734 | \ | |
735 | static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ | |
736 | struct se_portal_group *se_tpg, \ | |
737 | char *page) \ | |
738 | { \ | |
739 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
740 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
741 | \ | |
a309f489 | 742 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
743 | } \ |
744 | \ | |
745 | static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ | |
746 | struct se_portal_group *se_tpg, \ | |
747 | const char *page, \ | |
748 | size_t count) \ | |
749 | { \ | |
750 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ | |
751 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
752 | unsigned long val; \ | |
753 | int ret; \ | |
754 | \ | |
755 | ret = kstrtoul(page, 0, &val); \ | |
756 | if (ret < 0) { \ | |
757 | pr_err("kstrtoul() failed with" \ | |
758 | " ret: %d\n", ret); \ | |
759 | return -EINVAL; \ | |
760 | } \ | |
761 | ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ | |
762 | \ | |
763 | return (!ret) ? count : -EINVAL; \ | |
764 | } | |
765 | ||
766 | #define DEF_QLA_TPG_ATTR_BOOL(_name) \ | |
767 | \ | |
768 | static int tcm_qla2xxx_set_attrib_##_name( \ | |
769 | struct tcm_qla2xxx_tpg *tpg, \ | |
770 | unsigned long val) \ | |
771 | { \ | |
772 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ | |
773 | \ | |
774 | if ((val != 0) && (val != 1)) { \ | |
775 | pr_err("Illegal boolean value %lu\n", val); \ | |
776 | return -EINVAL; \ | |
777 | } \ | |
778 | \ | |
779 | a->_name = val; \ | |
780 | return 0; \ | |
781 | } | |
782 | ||
783 | #define QLA_TPG_ATTR(_name, _mode) \ | |
784 | TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); | |
785 | ||
786 | /* | |
787 | * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls | |
788 | */ | |
789 | DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); | |
790 | DEF_QLA_TPG_ATTRIB(generate_node_acls); | |
791 | QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); | |
792 | ||
793 | /* | |
794 | Define tcm_qla2xxx_attrib_s_cache_dynamic_acls | |
795 | */ | |
796 | DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); | |
797 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); | |
798 | QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); | |
799 | ||
800 | /* | |
801 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect | |
802 | */ | |
803 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); | |
804 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); | |
805 | QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); | |
806 | ||
807 | /* | |
808 | * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect | |
809 | */ | |
810 | DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); | |
811 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); | |
812 | QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); | |
813 | ||
de04a8aa AG |
814 | /* |
815 | * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only | |
816 | */ | |
817 | DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); | |
818 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); | |
819 | QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); | |
820 | ||
75f8c1f6 NB |
821 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
822 | &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, | |
823 | &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, | |
824 | &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, | |
825 | &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, | |
de04a8aa | 826 | &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, |
75f8c1f6 NB |
827 | NULL, |
828 | }; | |
829 | ||
830 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
831 | ||
832 | static ssize_t tcm_qla2xxx_tpg_show_enable( | |
833 | struct se_portal_group *se_tpg, | |
834 | char *page) | |
835 | { | |
836 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
837 | struct tcm_qla2xxx_tpg, se_tpg); | |
838 | ||
839 | return snprintf(page, PAGE_SIZE, "%d\n", | |
840 | atomic_read(&tpg->lport_tpg_enabled)); | |
841 | } | |
842 | ||
7474f52a NB |
843 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
844 | { | |
845 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
846 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
847 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
848 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
849 | ||
d588cf8f | 850 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
851 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
852 | qlt_enable_vha(base_vha); | |
853 | } | |
854 | complete(&base_tpg->tpg_base_comp); | |
855 | } | |
856 | ||
857 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
858 | { | |
859 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
860 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
861 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
862 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
863 | ||
864 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
865 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 866 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
867 | } |
868 | complete(&base_tpg->tpg_base_comp); | |
869 | } | |
870 | ||
75f8c1f6 NB |
871 | static ssize_t tcm_qla2xxx_tpg_store_enable( |
872 | struct se_portal_group *se_tpg, | |
873 | const char *page, | |
874 | size_t count) | |
875 | { | |
75f8c1f6 NB |
876 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
877 | struct tcm_qla2xxx_tpg, se_tpg); | |
878 | unsigned long op; | |
879 | int rc; | |
880 | ||
881 | rc = kstrtoul(page, 0, &op); | |
882 | if (rc < 0) { | |
883 | pr_err("kstrtoul() returned %d\n", rc); | |
884 | return -EINVAL; | |
885 | } | |
886 | if ((op != 1) && (op != 0)) { | |
887 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
888 | return -EINVAL; | |
889 | } | |
75f8c1f6 | 890 | if (op) { |
7474f52a NB |
891 | if (atomic_read(&tpg->lport_tpg_enabled)) |
892 | return -EEXIST; | |
893 | ||
894 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 895 | } else { |
7474f52a NB |
896 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
897 | return count; | |
898 | ||
899 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 900 | } |
7474f52a NB |
901 | init_completion(&tpg->tpg_base_comp); |
902 | schedule_work(&tpg->tpg_base_work); | |
903 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 904 | |
7474f52a NB |
905 | if (op) { |
906 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
907 | return -ENODEV; | |
908 | } else { | |
909 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
910 | return -EPERM; | |
911 | } | |
75f8c1f6 NB |
912 | return count; |
913 | } | |
914 | ||
915 | TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); | |
916 | ||
d23dbaaa NB |
917 | static ssize_t tcm_qla2xxx_tpg_show_dynamic_sessions( |
918 | struct se_portal_group *se_tpg, | |
919 | char *page) | |
920 | { | |
921 | return target_show_dynamic_sessions(se_tpg, page); | |
922 | } | |
923 | ||
924 | TF_TPG_BASE_ATTR_RO(tcm_qla2xxx, dynamic_sessions); | |
925 | ||
64b16887 NB |
926 | static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( |
927 | struct se_portal_group *se_tpg, | |
928 | const char *page, | |
929 | size_t count) | |
930 | { | |
931 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
932 | struct tcm_qla2xxx_tpg, se_tpg); | |
933 | unsigned long val; | |
934 | int ret = kstrtoul(page, 0, &val); | |
935 | ||
936 | if (ret) { | |
937 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
938 | return ret; | |
939 | } | |
940 | if (val != 0 && val != 1 && val != 3) { | |
941 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
942 | return -EINVAL; | |
943 | } | |
944 | tpg->tpg_attrib.fabric_prot_type = val; | |
945 | ||
946 | return count; | |
947 | } | |
948 | ||
949 | static ssize_t tcm_qla2xxx_tpg_show_fabric_prot_type( | |
950 | struct se_portal_group *se_tpg, | |
951 | char *page) | |
952 | { | |
953 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
954 | struct tcm_qla2xxx_tpg, se_tpg); | |
955 | ||
956 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
957 | } | |
958 | TF_TPG_BASE_ATTR(tcm_qla2xxx, fabric_prot_type, S_IRUGO | S_IWUSR); | |
959 | ||
75f8c1f6 NB |
960 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
961 | &tcm_qla2xxx_tpg_enable.attr, | |
d23dbaaa | 962 | &tcm_qla2xxx_tpg_dynamic_sessions.attr, |
64b16887 | 963 | &tcm_qla2xxx_tpg_fabric_prot_type.attr, |
75f8c1f6 NB |
964 | NULL, |
965 | }; | |
966 | ||
967 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
968 | struct se_wwn *wwn, | |
969 | struct config_group *group, | |
970 | const char *name) | |
971 | { | |
972 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
973 | struct tcm_qla2xxx_lport, lport_wwn); | |
974 | struct tcm_qla2xxx_tpg *tpg; | |
975 | unsigned long tpgt; | |
976 | int ret; | |
977 | ||
978 | if (strstr(name, "tpgt_") != name) | |
979 | return ERR_PTR(-EINVAL); | |
980 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
981 | return ERR_PTR(-EINVAL); | |
982 | ||
0e8cd71c | 983 | if ((tpgt != 1)) { |
75f8c1f6 NB |
984 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
985 | return ERR_PTR(-ENOSYS); | |
986 | } | |
987 | ||
988 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
989 | if (!tpg) { | |
990 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
991 | return ERR_PTR(-ENOMEM); | |
992 | } | |
993 | tpg->lport = lport; | |
994 | tpg->lport_tpgt = tpgt; | |
995 | /* | |
996 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
997 | * NodeACLs | |
998 | */ | |
a309f489 AG |
999 | tpg->tpg_attrib.generate_node_acls = 1; |
1000 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1001 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1002 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
75f8c1f6 | 1003 | |
bc0c94b1 | 1004 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1005 | if (ret < 0) { |
1006 | kfree(tpg); | |
1007 | return NULL; | |
1008 | } | |
0e8cd71c SK |
1009 | |
1010 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1011 | |
1012 | return &tpg->se_tpg; | |
1013 | } | |
1014 | ||
1015 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1016 | { | |
1017 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1018 | struct tcm_qla2xxx_tpg, se_tpg); | |
1019 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1020 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1021 | /* |
1022 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1023 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1024 | */ | |
0e8cd71c SK |
1025 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1026 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1027 | |
1028 | core_tpg_deregister(se_tpg); | |
1029 | /* | |
1030 | * Clear local TPG=1 pointer for non NPIV mode. | |
1031 | */ | |
394d62ba | 1032 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1033 | kfree(tpg); |
1034 | } | |
1035 | ||
394d62ba NB |
1036 | static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( |
1037 | struct se_portal_group *se_tpg, | |
1038 | char *page) | |
1039 | { | |
1040 | return tcm_qla2xxx_tpg_show_enable(se_tpg, page); | |
1041 | } | |
1042 | ||
1043 | static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( | |
1044 | struct se_portal_group *se_tpg, | |
1045 | const char *page, | |
1046 | size_t count) | |
1047 | { | |
1048 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
1049 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1050 | struct tcm_qla2xxx_lport, lport_wwn); | |
1051 | struct scsi_qla_host *vha = lport->qla_vha; | |
1052 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1053 | struct tcm_qla2xxx_tpg, se_tpg); | |
1054 | unsigned long op; | |
1055 | int rc; | |
1056 | ||
1057 | rc = kstrtoul(page, 0, &op); | |
1058 | if (rc < 0) { | |
1059 | pr_err("kstrtoul() returned %d\n", rc); | |
1060 | return -EINVAL; | |
1061 | } | |
1062 | if ((op != 1) && (op != 0)) { | |
1063 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1064 | return -EINVAL; | |
1065 | } | |
1066 | if (op) { | |
1067 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1068 | return -EEXIST; | |
1069 | ||
1070 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1071 | qlt_enable_vha(vha); | |
1072 | } else { | |
1073 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1074 | return count; | |
1075 | ||
1076 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1077 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1078 | } | |
1079 | ||
1080 | return count; | |
1081 | } | |
1082 | ||
1083 | TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); | |
1084 | ||
1085 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
1086 | &tcm_qla2xxx_npiv_tpg_enable.attr, | |
1087 | NULL, | |
1088 | }; | |
1089 | ||
75f8c1f6 NB |
1090 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1091 | struct se_wwn *wwn, | |
1092 | struct config_group *group, | |
1093 | const char *name) | |
1094 | { | |
1095 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1096 | struct tcm_qla2xxx_lport, lport_wwn); | |
1097 | struct tcm_qla2xxx_tpg *tpg; | |
1098 | unsigned long tpgt; | |
1099 | int ret; | |
1100 | ||
1101 | if (strstr(name, "tpgt_") != name) | |
1102 | return ERR_PTR(-EINVAL); | |
1103 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1104 | return ERR_PTR(-EINVAL); | |
1105 | ||
1106 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1107 | if (!tpg) { | |
1108 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1109 | return ERR_PTR(-ENOMEM); | |
1110 | } | |
1111 | tpg->lport = lport; | |
1112 | tpg->lport_tpgt = tpgt; | |
1113 | ||
0e8cd71c SK |
1114 | /* |
1115 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1116 | * NodeACLs | |
1117 | */ | |
1118 | tpg->tpg_attrib.generate_node_acls = 1; | |
1119 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1120 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1121 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1122 | ||
bc0c94b1 | 1123 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1124 | if (ret < 0) { |
1125 | kfree(tpg); | |
1126 | return NULL; | |
1127 | } | |
0e8cd71c | 1128 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1129 | return &tpg->se_tpg; |
1130 | } | |
1131 | ||
1132 | /* | |
1133 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1134 | */ | |
1135 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | |
1136 | scsi_qla_host_t *vha, | |
1137 | const uint8_t *s_id) | |
1138 | { | |
75f8c1f6 NB |
1139 | struct tcm_qla2xxx_lport *lport; |
1140 | struct se_node_acl *se_nacl; | |
1141 | struct tcm_qla2xxx_nacl *nacl; | |
1142 | u32 key; | |
1143 | ||
0e8cd71c | 1144 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1145 | if (!lport) { |
1146 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1147 | dump_stack(); | |
1148 | return NULL; | |
1149 | } | |
1150 | ||
1151 | key = (((unsigned long)s_id[0] << 16) | | |
1152 | ((unsigned long)s_id[1] << 8) | | |
1153 | (unsigned long)s_id[2]); | |
1154 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); | |
1155 | ||
1156 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1157 | if (!se_nacl) { | |
1158 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1159 | return NULL; | |
1160 | } | |
1161 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1162 | se_nacl, se_nacl->initiatorname); | |
1163 | ||
1164 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1165 | if (!nacl->qla_tgt_sess) { | |
1166 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1167 | return NULL; | |
1168 | } | |
1169 | ||
1170 | return nacl->qla_tgt_sess; | |
1171 | } | |
1172 | ||
1173 | /* | |
1174 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1175 | */ | |
1176 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1177 | struct tcm_qla2xxx_lport *lport, | |
1178 | struct se_node_acl *new_se_nacl, | |
1179 | struct tcm_qla2xxx_nacl *nacl, | |
1180 | struct se_session *se_sess, | |
1181 | struct qla_tgt_sess *qla_tgt_sess, | |
1182 | uint8_t *s_id) | |
1183 | { | |
1184 | u32 key; | |
1185 | void *slot; | |
1186 | int rc; | |
1187 | ||
1188 | key = (((unsigned long)s_id[0] << 16) | | |
1189 | ((unsigned long)s_id[1] << 8) | | |
1190 | (unsigned long)s_id[2]); | |
1191 | pr_debug("set_sess_by_s_id: %06x\n", key); | |
1192 | ||
1193 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1194 | if (!slot) { | |
1195 | if (new_se_nacl) { | |
1196 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1197 | nacl->nport_id = key; | |
1198 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1199 | new_se_nacl, GFP_ATOMIC); | |
1200 | if (rc) | |
1201 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1202 | (int)key); | |
1203 | } else { | |
1204 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1205 | } | |
1206 | ||
1207 | qla_tgt_sess->se_sess = se_sess; | |
1208 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1209 | return; | |
1210 | } | |
1211 | ||
1212 | if (nacl->qla_tgt_sess) { | |
1213 | if (new_se_nacl == NULL) { | |
1214 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1215 | btree_remove32(&lport->lport_fcport_map, key); | |
1216 | nacl->qla_tgt_sess = NULL; | |
1217 | return; | |
1218 | } | |
1219 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1220 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1221 | qla_tgt_sess->se_sess = se_sess; | |
1222 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1223 | return; | |
1224 | } | |
1225 | ||
1226 | if (new_se_nacl == NULL) { | |
1227 | pr_debug("Clearing existing fc_port entry\n"); | |
1228 | btree_remove32(&lport->lport_fcport_map, key); | |
1229 | return; | |
1230 | } | |
1231 | ||
1232 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | |
1233 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1234 | qla_tgt_sess->se_sess = se_sess; | |
1235 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1236 | ||
1237 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | |
1238 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1239 | } | |
1240 | ||
1241 | /* | |
1242 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1243 | */ | |
1244 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | |
1245 | scsi_qla_host_t *vha, | |
1246 | const uint16_t loop_id) | |
1247 | { | |
75f8c1f6 NB |
1248 | struct tcm_qla2xxx_lport *lport; |
1249 | struct se_node_acl *se_nacl; | |
1250 | struct tcm_qla2xxx_nacl *nacl; | |
1251 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1252 | ||
0e8cd71c | 1253 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1254 | if (!lport) { |
1255 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1256 | dump_stack(); | |
1257 | return NULL; | |
1258 | } | |
1259 | ||
1260 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1261 | ||
1262 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1263 | se_nacl = fc_loopid->se_nacl; | |
1264 | if (!se_nacl) { | |
1265 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1266 | loop_id); | |
1267 | return NULL; | |
1268 | } | |
1269 | ||
1270 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1271 | ||
1272 | if (!nacl->qla_tgt_sess) { | |
1273 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1274 | return NULL; | |
1275 | } | |
1276 | ||
1277 | return nacl->qla_tgt_sess; | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * Expected to be called with struct qla_hw_data->hardware_lock held | |
1282 | */ | |
1283 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1284 | struct tcm_qla2xxx_lport *lport, | |
1285 | struct se_node_acl *new_se_nacl, | |
1286 | struct tcm_qla2xxx_nacl *nacl, | |
1287 | struct se_session *se_sess, | |
1288 | struct qla_tgt_sess *qla_tgt_sess, | |
1289 | uint16_t loop_id) | |
1290 | { | |
1291 | struct se_node_acl *saved_nacl; | |
1292 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1293 | ||
1294 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1295 | ||
1296 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1297 | lport->lport_loopid_map)[loop_id]; | |
1298 | ||
1299 | saved_nacl = fc_loopid->se_nacl; | |
1300 | if (!saved_nacl) { | |
1301 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1302 | fc_loopid->se_nacl = new_se_nacl; | |
1303 | if (qla_tgt_sess->se_sess != se_sess) | |
1304 | qla_tgt_sess->se_sess = se_sess; | |
1305 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1306 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1307 | return; | |
1308 | } | |
1309 | ||
1310 | if (nacl->qla_tgt_sess) { | |
1311 | if (new_se_nacl == NULL) { | |
1312 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1313 | fc_loopid->se_nacl = NULL; | |
1314 | nacl->qla_tgt_sess = NULL; | |
1315 | return; | |
1316 | } | |
1317 | ||
1318 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1319 | fc_loopid->se_nacl = new_se_nacl; | |
1320 | if (qla_tgt_sess->se_sess != se_sess) | |
1321 | qla_tgt_sess->se_sess = se_sess; | |
1322 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1323 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1324 | return; | |
1325 | } | |
1326 | ||
1327 | if (new_se_nacl == NULL) { | |
1328 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1329 | fc_loopid->se_nacl = NULL; | |
1330 | return; | |
1331 | } | |
1332 | ||
1333 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n"); | |
1334 | fc_loopid->se_nacl = new_se_nacl; | |
1335 | if (qla_tgt_sess->se_sess != se_sess) | |
1336 | qla_tgt_sess->se_sess = se_sess; | |
1337 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1338 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1339 | ||
1340 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | |
1341 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1342 | } | |
1343 | ||
f2d5d9b9 NB |
1344 | /* |
1345 | * Should always be called with qla_hw_data->hardware_lock held. | |
1346 | */ | |
1347 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
1348 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | |
1349 | { | |
1350 | struct se_session *se_sess = sess->se_sess; | |
1351 | unsigned char be_sid[3]; | |
1352 | ||
1353 | be_sid[0] = sess->s_id.b.domain; | |
1354 | be_sid[1] = sess->s_id.b.area; | |
1355 | be_sid[2] = sess->s_id.b.al_pa; | |
1356 | ||
1357 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1358 | sess, be_sid); | |
1359 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1360 | sess, sess->loop_id); | |
1361 | } | |
1362 | ||
75f8c1f6 NB |
1363 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
1364 | { | |
1365 | struct qla_tgt *tgt = sess->tgt; | |
1366 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1367 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 NB |
1368 | struct se_session *se_sess; |
1369 | struct se_node_acl *se_nacl; | |
1370 | struct tcm_qla2xxx_lport *lport; | |
1371 | struct tcm_qla2xxx_nacl *nacl; | |
75f8c1f6 NB |
1372 | |
1373 | BUG_ON(in_interrupt()); | |
1374 | ||
1375 | se_sess = sess->se_sess; | |
1376 | if (!se_sess) { | |
1377 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | |
1378 | dump_stack(); | |
1379 | return; | |
1380 | } | |
1381 | se_nacl = se_sess->se_node_acl; | |
1382 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1383 | ||
0e8cd71c | 1384 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1385 | if (!lport) { |
1386 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1387 | dump_stack(); | |
1388 | return; | |
1389 | } | |
be646c2d | 1390 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1391 | |
1392 | transport_deregister_session_configfs(sess->se_sess); | |
1393 | transport_deregister_session(sess->se_sess); | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1398 | * to locate struct se_node_acl | |
1399 | */ | |
1400 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1401 | scsi_qla_host_t *vha, | |
1402 | unsigned char *fc_wwpn, | |
1403 | void *qla_tgt_sess, | |
1404 | uint8_t *s_id, | |
1405 | uint16_t loop_id) | |
1406 | { | |
1407 | struct qla_hw_data *ha = vha->hw; | |
1408 | struct tcm_qla2xxx_lport *lport; | |
1409 | struct tcm_qla2xxx_tpg *tpg; | |
1410 | struct tcm_qla2xxx_nacl *nacl; | |
1411 | struct se_portal_group *se_tpg; | |
1412 | struct se_node_acl *se_nacl; | |
1413 | struct se_session *se_sess; | |
1414 | struct qla_tgt_sess *sess = qla_tgt_sess; | |
1415 | unsigned char port_name[36]; | |
1416 | unsigned long flags; | |
51a07f84 NB |
1417 | int num_tags = (ha->fw_xcb_count) ? ha->fw_xcb_count : |
1418 | TCM_QLA2XXX_DEFAULT_TAGS; | |
75f8c1f6 | 1419 | |
0e8cd71c | 1420 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1421 | if (!lport) { |
1422 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1423 | dump_stack(); | |
1424 | return -EINVAL; | |
1425 | } | |
1426 | /* | |
1427 | * Locate the TPG=1 reference.. | |
1428 | */ | |
1429 | tpg = lport->tpg_1; | |
1430 | if (!tpg) { | |
1431 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1432 | return -EINVAL; | |
1433 | } | |
1434 | se_tpg = &tpg->se_tpg; | |
1435 | ||
51a07f84 NB |
1436 | se_sess = transport_init_session_tags(num_tags, |
1437 | sizeof(struct qla_tgt_cmd), | |
59bb0ff5 | 1438 | TARGET_PROT_ALL); |
75f8c1f6 NB |
1439 | if (IS_ERR(se_sess)) { |
1440 | pr_err("Unable to initialize struct se_session\n"); | |
1441 | return PTR_ERR(se_sess); | |
1442 | } | |
1443 | /* | |
1444 | * Format the FCP Initiator port_name into colon seperated values to | |
1445 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1446 | */ | |
1447 | memset(&port_name, 0, 36); | |
3c9786e5 | 1448 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1449 | /* |
1450 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1451 | * via ConfigFS, or via running in TPG demo mode. | |
1452 | */ | |
1453 | se_sess->se_node_acl = core_tpg_check_initiator_node_acl(se_tpg, | |
1454 | port_name); | |
1455 | if (!se_sess->se_node_acl) { | |
1456 | transport_free_session(se_sess); | |
1457 | return -EINVAL; | |
1458 | } | |
1459 | se_nacl = se_sess->se_node_acl; | |
1460 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1461 | /* | |
1462 | * And now setup the new se_nacl and session pointers into our HW lport | |
1463 | * mappings for fabric S_ID and LOOP_ID. | |
1464 | */ | |
1465 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1466 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, | |
1467 | qla_tgt_sess, s_id); | |
1468 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, se_sess, | |
1469 | qla_tgt_sess, loop_id); | |
1470 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1471 | /* | |
1472 | * Finally register the new FC Nexus with TCM | |
1473 | */ | |
75c3d0bf | 1474 | transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); |
75f8c1f6 NB |
1475 | |
1476 | return 0; | |
1477 | } | |
1478 | ||
c8292d1d RD |
1479 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
1480 | uint16_t loop_id, bool conf_compl_supported) | |
1481 | { | |
1482 | struct qla_tgt *tgt = sess->tgt; | |
1483 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1484 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1485 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1486 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1487 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1488 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1489 | u32 key; | |
1490 | ||
1491 | ||
1492 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) | |
7b833558 OK |
1493 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1494 | sess, sess->port_name, | |
1495 | sess->loop_id, loop_id, sess->s_id.b.domain, | |
1496 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, | |
1497 | s_id.b.area, s_id.b.al_pa); | |
c8292d1d RD |
1498 | |
1499 | if (sess->loop_id != loop_id) { | |
1500 | /* | |
1501 | * Because we can shuffle loop IDs around and we | |
1502 | * update different sessions non-atomically, we might | |
1503 | * have overwritten this session's old loop ID | |
1504 | * already, and we might end up overwriting some other | |
1505 | * session that will be updated later. So we have to | |
1506 | * be extra careful and we can't warn about those things... | |
1507 | */ | |
1508 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1509 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1510 | ||
1511 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1512 | ||
1513 | sess->loop_id = loop_id; | |
1514 | } | |
1515 | ||
1516 | if (sess->s_id.b24 != s_id.b24) { | |
1517 | key = (((u32) sess->s_id.b.domain << 16) | | |
1518 | ((u32) sess->s_id.b.area << 8) | | |
1519 | ((u32) sess->s_id.b.al_pa)); | |
1520 | ||
1521 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
1522 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, | |
1523 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1524 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1525 | else | |
1526 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
1527 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1528 | ||
1529 | key = (((u32) s_id.b.domain << 16) | | |
1530 | ((u32) s_id.b.area << 8) | | |
1531 | ((u32) s_id.b.al_pa)); | |
1532 | ||
1533 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1534 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1535 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1536 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1537 | } else { | |
1538 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); | |
1539 | } | |
1540 | ||
1541 | sess->s_id = s_id; | |
1542 | nacl->nport_id = key; | |
1543 | } | |
1544 | ||
1545 | sess->conf_compl_supported = conf_compl_supported; | |
1546 | } | |
1547 | ||
75f8c1f6 NB |
1548 | /* |
1549 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1550 | */ | |
1551 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1552 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1553 | .handle_data = tcm_qla2xxx_handle_data, | |
f83adb61 | 1554 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
75f8c1f6 NB |
1555 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
1556 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1557 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1558 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1559 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1560 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1561 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1562 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1563 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
1564 | .put_sess = tcm_qla2xxx_put_sess, | |
1565 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, | |
1566 | }; | |
1567 | ||
1568 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1569 | { | |
1570 | int rc; | |
1571 | ||
1572 | rc = btree_init32(&lport->lport_fcport_map); | |
1573 | if (rc) { | |
1574 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1575 | return rc; | |
1576 | } | |
1577 | ||
1578 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1579 | 65536); | |
1580 | if (!lport->lport_loopid_map) { | |
1581 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1582 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1583 | btree_destroy32(&lport->lport_fcport_map); | |
1584 | return -ENOMEM; | |
1585 | } | |
1586 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1587 | * 65536); | |
1588 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1589 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1590 | return 0; | |
1591 | } | |
1592 | ||
49a47f2c NB |
1593 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1594 | void *target_lport_ptr, | |
1595 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1596 | { |
49a47f2c NB |
1597 | struct qla_hw_data *ha = vha->hw; |
1598 | struct tcm_qla2xxx_lport *lport = | |
1599 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1600 | /* |
49a47f2c | 1601 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1602 | */ |
49a47f2c NB |
1603 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1604 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1605 | lport->qla_vha = vha; |
1606 | ||
1607 | return 0; | |
1608 | } | |
1609 | ||
1610 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1611 | struct target_fabric_configfs *tf, | |
1612 | struct config_group *group, | |
1613 | const char *name) | |
1614 | { | |
1615 | struct tcm_qla2xxx_lport *lport; | |
1616 | u64 wwpn; | |
1617 | int ret = -ENODEV; | |
1618 | ||
1619 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1620 | return ERR_PTR(-EINVAL); | |
1621 | ||
1622 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1623 | if (!lport) { | |
1624 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1625 | return ERR_PTR(-ENOMEM); | |
1626 | } | |
1627 | lport->lport_wwpn = wwpn; | |
1628 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1629 | wwpn); | |
c046aa0f | 1630 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1631 | |
1632 | ret = tcm_qla2xxx_init_lport(lport); | |
1633 | if (ret != 0) | |
1634 | goto out; | |
1635 | ||
49a47f2c NB |
1636 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1637 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1638 | if (ret != 0) |
1639 | goto out_lport; | |
1640 | ||
1641 | return &lport->lport_wwn; | |
1642 | out_lport: | |
1643 | vfree(lport->lport_loopid_map); | |
1644 | btree_destroy32(&lport->lport_fcport_map); | |
1645 | out: | |
1646 | kfree(lport); | |
1647 | return ERR_PTR(ret); | |
1648 | } | |
1649 | ||
1650 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1651 | { | |
1652 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1653 | struct tcm_qla2xxx_lport, lport_wwn); | |
1654 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1655 | struct se_node_acl *node; |
1656 | u32 key = 0; | |
1657 | ||
1658 | /* | |
1659 | * Call into qla2x_target.c LLD logic to complete the | |
1660 | * shutdown of struct qla_tgt after the call to | |
1661 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1662 | */ | |
0e8cd71c SK |
1663 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1664 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1665 | |
1666 | qlt_lport_deregister(vha); | |
1667 | ||
1668 | vfree(lport->lport_loopid_map); | |
1669 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1670 | btree_remove32(&lport->lport_fcport_map, key); | |
1671 | btree_destroy32(&lport->lport_fcport_map); | |
1672 | kfree(lport); | |
1673 | } | |
1674 | ||
49a47f2c NB |
1675 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1676 | void *target_lport_ptr, | |
1677 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1678 | { | |
1679 | struct fc_vport *vport; | |
1680 | struct Scsi_Host *sh = base_vha->host; | |
1681 | struct scsi_qla_host *npiv_vha; | |
1682 | struct tcm_qla2xxx_lport *lport = | |
1683 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1684 | struct tcm_qla2xxx_lport *base_lport = |
1685 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
1686 | struct tcm_qla2xxx_tpg *base_tpg; | |
49a47f2c NB |
1687 | struct fc_vport_identifiers vport_id; |
1688 | ||
1689 | if (!qla_tgt_mode_enabled(base_vha)) { | |
1690 | pr_err("qla2xxx base_vha not enabled for target mode\n"); | |
1691 | return -EPERM; | |
1692 | } | |
1693 | ||
7474f52a NB |
1694 | if (!base_lport || !base_lport->tpg_1 || |
1695 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1696 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1697 | return -EPERM; | |
1698 | } | |
1699 | base_tpg = base_lport->tpg_1; | |
1700 | ||
49a47f2c NB |
1701 | memset(&vport_id, 0, sizeof(vport_id)); |
1702 | vport_id.port_name = npiv_wwpn; | |
1703 | vport_id.node_name = npiv_wwnn; | |
1704 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1705 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1706 | vport_id.disable = false; | |
1707 | ||
1708 | vport = fc_vport_create(sh, 0, &vport_id); | |
1709 | if (!vport) { | |
1710 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1711 | return -ENODEV; | |
1712 | } | |
1713 | /* | |
1714 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1715 | */ | |
1716 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1717 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1718 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1719 | scsi_host_get(npiv_vha->host); |
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | ||
75f8c1f6 NB |
1724 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1725 | struct target_fabric_configfs *tf, | |
1726 | struct config_group *group, | |
1727 | const char *name) | |
1728 | { | |
1729 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1730 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1731 | char *p, tmp[128]; | |
75f8c1f6 NB |
1732 | int ret; |
1733 | ||
49a47f2c NB |
1734 | snprintf(tmp, 128, "%s", name); |
1735 | ||
1736 | p = strchr(tmp, '@'); | |
1737 | if (!p) { | |
1738 | pr_err("Unable to locate NPIV '@' seperator\n"); | |
1739 | return ERR_PTR(-EINVAL); | |
1740 | } | |
1741 | *p++ = '\0'; | |
1742 | ||
1743 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1744 | return ERR_PTR(-EINVAL); | |
1745 | ||
1746 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1747 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1748 | return ERR_PTR(-EINVAL); |
1749 | ||
1750 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1751 | if (!lport) { | |
1752 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1753 | return ERR_PTR(-ENOMEM); | |
1754 | } | |
1755 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1756 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1757 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1758 | |
0e8cd71c | 1759 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1760 | if (ret != 0) |
1761 | goto out; | |
1762 | ||
49a47f2c NB |
1763 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1764 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1765 | if (ret != 0) |
1766 | goto out_lport; | |
1767 | ||
75f8c1f6 | 1768 | return &lport->lport_wwn; |
0e8cd71c SK |
1769 | out_lport: |
1770 | vfree(lport->lport_loopid_map); | |
1771 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1772 | out: |
1773 | kfree(lport); | |
1774 | return ERR_PTR(ret); | |
1775 | } | |
1776 | ||
1777 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1778 | { | |
1779 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1780 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1781 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1782 | struct qla_hw_data *ha = npiv_vha->hw; | |
1783 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1784 | ||
1785 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1786 | /* |
0e8cd71c | 1787 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1788 | */ |
49a47f2c NB |
1789 | fc_vport_terminate(npiv_vha->fc_vport); |
1790 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1791 | kfree(lport); |
1792 | } | |
1793 | ||
1794 | ||
1795 | static ssize_t tcm_qla2xxx_wwn_show_attr_version( | |
1796 | struct target_fabric_configfs *tf, | |
1797 | char *page) | |
1798 | { | |
1799 | return sprintf(page, | |
1800 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
1801 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1802 | utsname()->machine); | |
1803 | } | |
1804 | ||
1805 | TF_WWN_ATTR_RO(tcm_qla2xxx, version); | |
1806 | ||
1807 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
1808 | &tcm_qla2xxx_wwn_version.attr, | |
1809 | NULL, | |
1810 | }; | |
1811 | ||
9ac8928e CH |
1812 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1813 | .module = THIS_MODULE, | |
1814 | .name = "qla2xxx", | |
144bc4c2 | 1815 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1816 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
75f8c1f6 NB |
1817 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1818 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1819 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1820 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1821 | .tpg_check_demo_mode_write_protect = | |
1822 | tcm_qla2xxx_check_demo_write_protect, | |
1823 | .tpg_check_prod_mode_write_protect = | |
1824 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1825 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1826 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1827 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1828 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1829 | .release_cmd = tcm_qla2xxx_release_cmd, | |
1830 | .shutdown_session = tcm_qla2xxx_shutdown_session, | |
1831 | .close_session = tcm_qla2xxx_close_session, | |
1832 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1833 | .sess_get_initiator_sid = NULL, | |
1834 | .write_pending = tcm_qla2xxx_write_pending, | |
1835 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1836 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1837 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1838 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1839 | .queue_status = tcm_qla2xxx_queue_status, | |
1840 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1841 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1842 | /* |
1843 | * Setup function pointers for generic logic in | |
1844 | * target_core_fabric_configfs.c | |
1845 | */ | |
1846 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1847 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1848 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1849 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1850 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1851 | |
1852 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1853 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1854 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1855 | }; |
1856 | ||
9ac8928e CH |
1857 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1858 | .module = THIS_MODULE, | |
1859 | .name = "qla2xxx_npiv", | |
144bc4c2 | 1860 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1861 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
84197a36 | 1862 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1863 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
0e8cd71c SK |
1864 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1865 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1866 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1867 | .tpg_check_prod_mode_write_protect = | |
1868 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1869 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1870 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1871 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 NB |
1872 | .release_cmd = tcm_qla2xxx_release_cmd, |
1873 | .shutdown_session = tcm_qla2xxx_shutdown_session, | |
1874 | .close_session = tcm_qla2xxx_close_session, | |
1875 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1876 | .sess_get_initiator_sid = NULL, | |
1877 | .write_pending = tcm_qla2xxx_write_pending, | |
1878 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1879 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1880 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1881 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1882 | .queue_status = tcm_qla2xxx_queue_status, | |
1883 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1884 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1885 | /* |
1886 | * Setup function pointers for generic logic in | |
1887 | * target_core_fabric_configfs.c | |
1888 | */ | |
1889 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1890 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1891 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1892 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1893 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1894 | |
1895 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1896 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
1897 | }; |
1898 | ||
1899 | static int tcm_qla2xxx_register_configfs(void) | |
1900 | { | |
75f8c1f6 NB |
1901 | int ret; |
1902 | ||
1903 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
1904 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1905 | utsname()->machine); | |
9ac8928e CH |
1906 | |
1907 | ret = target_register_template(&tcm_qla2xxx_ops); | |
1908 | if (ret) | |
75f8c1f6 | 1909 | return ret; |
75f8c1f6 | 1910 | |
9ac8928e CH |
1911 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
1912 | if (ret) | |
75f8c1f6 | 1913 | goto out_fabric; |
75f8c1f6 NB |
1914 | |
1915 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
1916 | WQ_MEM_RECLAIM, 0); | |
1917 | if (!tcm_qla2xxx_free_wq) { | |
1918 | ret = -ENOMEM; | |
1919 | goto out_fabric_npiv; | |
1920 | } | |
1921 | ||
1922 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
1923 | if (!tcm_qla2xxx_cmd_wq) { | |
1924 | ret = -ENOMEM; | |
1925 | goto out_free_wq; | |
1926 | } | |
1927 | ||
1928 | return 0; | |
1929 | ||
1930 | out_free_wq: | |
1931 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
1932 | out_fabric_npiv: | |
9ac8928e | 1933 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 1934 | out_fabric: |
9ac8928e | 1935 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
1936 | return ret; |
1937 | } | |
1938 | ||
1939 | static void tcm_qla2xxx_deregister_configfs(void) | |
1940 | { | |
1941 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
1942 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
1943 | ||
9ac8928e CH |
1944 | target_unregister_template(&tcm_qla2xxx_ops); |
1945 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
1946 | } |
1947 | ||
1948 | static int __init tcm_qla2xxx_init(void) | |
1949 | { | |
1950 | int ret; | |
1951 | ||
1952 | ret = tcm_qla2xxx_register_configfs(); | |
1953 | if (ret < 0) | |
1954 | return ret; | |
1955 | ||
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | static void __exit tcm_qla2xxx_exit(void) | |
1960 | { | |
1961 | tcm_qla2xxx_deregister_configfs(); | |
1962 | } | |
1963 | ||
1964 | MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver"); | |
1965 | MODULE_LICENSE("GPL"); | |
1966 | module_init(tcm_qla2xxx_init); | |
1967 | module_exit(tcm_qla2xxx_exit); |