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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> | |
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> | |
75f8c1f6 NB |
46 | |
47 | #include "qla_def.h" | |
48 | #include "qla_target.h" | |
49 | #include "tcm_qla2xxx.h" | |
50 | ||
4d6609c4 HM |
51 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
52 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; | |
53 | ||
75f8c1f6 NB |
54 | /* |
55 | * Parse WWN. | |
56 | * If strict, we require lower-case hex and colon separators to be sure | |
57 | * the name is the same as what would be generated by ft_format_wwn() | |
58 | * so the name and wwn are mapped one-to-one. | |
59 | */ | |
60 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
61 | { | |
62 | const char *cp; | |
63 | char c; | |
64 | u32 nibble; | |
65 | u32 byte = 0; | |
66 | u32 pos = 0; | |
67 | u32 err; | |
68 | ||
69 | *wwn = 0; | |
70 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
71 | c = *cp; | |
72 | if (c == '\n' && cp[1] == '\0') | |
73 | continue; | |
74 | if (strict && pos++ == 2 && byte++ < 7) { | |
75 | pos = 0; | |
76 | if (c == ':') | |
77 | continue; | |
78 | err = 1; | |
79 | goto fail; | |
80 | } | |
81 | if (c == '\0') { | |
82 | err = 2; | |
83 | if (strict && byte != 8) | |
84 | goto fail; | |
85 | return cp - name; | |
86 | } | |
87 | err = 3; | |
88 | if (isdigit(c)) | |
89 | nibble = c - '0'; | |
90 | else if (isxdigit(c) && (islower(c) || !strict)) | |
91 | nibble = tolower(c) - 'a' + 10; | |
92 | else | |
93 | goto fail; | |
94 | *wwn = (*wwn << 4) | nibble; | |
95 | } | |
96 | err = 4; | |
97 | fail: | |
98 | pr_debug("err %u len %zu pos %u byte %u\n", | |
99 | err, cp - name, pos, byte); | |
100 | return -1; | |
101 | } | |
102 | ||
103 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
104 | { | |
105 | u8 b[8]; | |
106 | ||
107 | put_unaligned_be64(wwn, b); | |
108 | return snprintf(buf, len, | |
109 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
110 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
111 | } | |
112 | ||
113 | static char *tcm_qla2xxx_get_fabric_name(void) | |
114 | { | |
115 | return "qla2xxx"; | |
116 | } | |
117 | ||
118 | /* | |
119 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
120 | */ | |
121 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
122 | { | |
d4f75b56 | 123 | unsigned int i, j; |
75f8c1f6 NB |
124 | u8 wwn[8]; |
125 | ||
126 | memset(wwn, 0, sizeof(wwn)); | |
127 | ||
128 | /* Validate and store the new name */ | |
129 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
130 | int value; |
131 | ||
75f8c1f6 NB |
132 | value = hex_to_bin(*ns++); |
133 | if (value >= 0) | |
134 | j = (j << 4) | value; | |
135 | else | |
136 | return -EINVAL; | |
137 | ||
138 | if (i % 2) { | |
139 | wwn[i/2] = j & 0xff; | |
140 | j = 0; | |
141 | } | |
142 | } | |
143 | ||
144 | *nm = wwn_to_u64(wwn); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
149 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
150 | * store_fc_host_vport_create() | |
151 | */ | |
152 | static int tcm_qla2xxx_npiv_parse_wwn( | |
153 | const char *name, | |
154 | size_t count, | |
155 | u64 *wwpn, | |
156 | u64 *wwnn) | |
157 | { | |
158 | unsigned int cnt = count; | |
159 | int rc; | |
160 | ||
161 | *wwpn = 0; | |
162 | *wwnn = 0; | |
163 | ||
164 | /* count may include a LF at end of string */ | |
0e8cd71c | 165 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
166 | cnt--; |
167 | ||
168 | /* validate we have enough characters for WWPN */ | |
169 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
170 | return -EINVAL; | |
171 | ||
172 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
173 | if (rc != 0) | |
174 | return rc; | |
175 | ||
176 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
177 | if (rc != 0) | |
178 | return rc; | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
75f8c1f6 NB |
183 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
184 | { | |
185 | return "qla2xxx_npiv"; | |
186 | } | |
187 | ||
75f8c1f6 NB |
188 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
189 | { | |
190 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
191 | struct tcm_qla2xxx_tpg, se_tpg); | |
192 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
193 | ||
c046aa0f | 194 | return lport->lport_naa_name; |
75f8c1f6 NB |
195 | } |
196 | ||
75f8c1f6 NB |
197 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
198 | { | |
199 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
200 | struct tcm_qla2xxx_tpg, se_tpg); | |
201 | return tpg->lport_tpgt; | |
202 | } | |
203 | ||
75f8c1f6 NB |
204 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
205 | { | |
206 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
207 | struct tcm_qla2xxx_tpg, se_tpg); | |
208 | ||
a309f489 | 209 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
210 | } |
211 | ||
212 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
213 | { | |
214 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
215 | struct tcm_qla2xxx_tpg, se_tpg); | |
216 | ||
a309f489 | 217 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
218 | } |
219 | ||
220 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
221 | { | |
222 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
223 | struct tcm_qla2xxx_tpg, se_tpg); | |
224 | ||
a309f489 | 225 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
226 | } |
227 | ||
228 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
229 | { | |
230 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
231 | struct tcm_qla2xxx_tpg, se_tpg); | |
232 | ||
a309f489 | 233 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
234 | } |
235 | ||
de04a8aa AG |
236 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
237 | { | |
238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
239 | struct tcm_qla2xxx_tpg, se_tpg); | |
240 | ||
a309f489 | 241 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
242 | } |
243 | ||
64b16887 NB |
244 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
245 | { | |
246 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
247 | struct tcm_qla2xxx_tpg, se_tpg); | |
248 | ||
249 | return tpg->tpg_attrib.fabric_prot_type; | |
250 | } | |
251 | ||
75f8c1f6 NB |
252 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
253 | { | |
254 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
255 | struct tcm_qla2xxx_tpg, se_tpg); | |
256 | ||
257 | return tpg->lport_tpgt; | |
258 | } | |
259 | ||
260 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
261 | { | |
262 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
263 | struct qla_tgt_mgmt_cmd, free_work); | |
264 | ||
265 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
266 | } | |
267 | ||
268 | /* | |
269 | * Called from qla_target_template->free_mcmd(), and will call | |
270 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
271 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
272 | */ | |
273 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
274 | { | |
275 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
276 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
277 | } | |
278 | ||
279 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
280 | { | |
281 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
282 | ||
e07f8f65 SK |
283 | cmd->cmd_in_wq = 0; |
284 | ||
285 | WARN_ON(cmd->cmd_flags & BIT_16); | |
286 | ||
ce1025cd | 287 | cmd->vha->tgt_counters.qla_core_ret_sta_ctio++; |
e07f8f65 | 288 | cmd->cmd_flags |= BIT_16; |
75f8c1f6 NB |
289 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
290 | } | |
291 | ||
292 | /* | |
293 | * Called from qla_target_template->free_cmd(), and will call | |
294 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
295 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
296 | */ | |
297 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
298 | { | |
ce1025cd | 299 | cmd->vha->tgt_counters.core_qla_free_cmd++; |
e07f8f65 | 300 | cmd->cmd_in_wq = 1; |
a07100e0 QT |
301 | |
302 | BUG_ON(cmd->cmd_flags & BIT_20); | |
303 | cmd->cmd_flags |= BIT_20; | |
304 | ||
75f8c1f6 | 305 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
fb3269ba | 306 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
307 | } |
308 | ||
309 | /* | |
310 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
311 | */ | |
312 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
313 | { | |
e07f8f65 SK |
314 | struct qla_tgt_cmd *cmd; |
315 | ||
316 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
317 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
318 | cmd->cmd_flags |= BIT_14; | |
319 | } | |
320 | ||
afc16604 | 321 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
322 | } |
323 | ||
324 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
325 | * fabric descriptor @se_cmd command to release | |
326 | */ | |
327 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
328 | { | |
329 | struct qla_tgt_cmd *cmd; | |
330 | ||
331 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
332 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
333 | struct qla_tgt_mgmt_cmd, se_cmd); | |
334 | qlt_free_mcmd(mcmd); | |
335 | return; | |
336 | } | |
337 | ||
338 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
339 | qlt_free_cmd(cmd); | |
340 | } | |
341 | ||
75f8c1f6 NB |
342 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
343 | { | |
344 | struct qla_tgt_sess *sess = se_sess->fabric_sess_ptr; | |
345 | struct scsi_qla_host *vha; | |
346 | unsigned long flags; | |
347 | ||
348 | BUG_ON(!sess); | |
349 | vha = sess->vha; | |
350 | ||
7560151b | 351 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
e3dc0e31 CH |
352 | target_sess_cmd_list_set_waiting(se_sess); |
353 | qlt_put_sess(sess); | |
7560151b | 354 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
75f8c1f6 NB |
355 | } |
356 | ||
357 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
358 | { | |
359 | return 0; | |
360 | } | |
361 | ||
75f8c1f6 NB |
362 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
363 | { | |
364 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
365 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
366 | |
367 | if (cmd->aborted) { | |
368 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
369 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
370 | * already kick start the free. | |
371 | */ | |
372 | pr_debug("write_pending aborted cmd[%p] refcount %d " | |
373 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
374 | cmd,cmd->se_cmd.cmd_kref.refcount.counter, | |
375 | cmd->se_cmd.transport_state, | |
376 | cmd->se_cmd.t_state, | |
377 | cmd->se_cmd.se_cmd_flags); | |
378 | return 0; | |
379 | } | |
e5fdee87 | 380 | cmd->cmd_flags |= BIT_3; |
75f8c1f6 | 381 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 382 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
383 | |
384 | cmd->sg_cnt = se_cmd->t_data_nents; | |
385 | cmd->sg = se_cmd->t_data_sg; | |
386 | ||
f83adb61 QT |
387 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
388 | cmd->prot_sg = se_cmd->t_prot_sg; | |
389 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
390 | se_cmd->pi_err = 0; | |
391 | ||
75f8c1f6 NB |
392 | /* |
393 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
394 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
395 | */ | |
396 | return qlt_rdy_to_xfer(cmd); | |
397 | } | |
398 | ||
399 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
400 | { | |
401 | unsigned long flags; | |
402 | /* | |
403 | * Check for WRITE_PENDING status to determine if we need to wait for | |
404 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
405 | */ | |
406 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
407 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
408 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
409 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
410 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
a07100e0 | 411 | 50); |
75f8c1f6 NB |
412 | return 0; |
413 | } | |
414 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
420 | { | |
421 | return; | |
422 | } | |
423 | ||
75f8c1f6 NB |
424 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
425 | { | |
5155ce5f DKU |
426 | if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { |
427 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
428 | struct qla_tgt_cmd, se_cmd); | |
429 | return cmd->state; | |
430 | } | |
431 | ||
75f8c1f6 NB |
432 | return 0; |
433 | } | |
434 | ||
435 | /* | |
436 | * Called from process context in qla_target.c:qlt_do_work() code | |
437 | */ | |
438 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
439 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
440 | int data_dir, int bidi) | |
441 | { | |
442 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
443 | struct se_session *se_sess; | |
444 | struct qla_tgt_sess *sess; | |
445 | int flags = TARGET_SCF_ACK_KREF; | |
446 | ||
447 | if (bidi) | |
448 | flags |= TARGET_SCF_BIDI_OP; | |
449 | ||
5327c7db QT |
450 | if (se_cmd->cpuid != WORK_CPU_UNBOUND) |
451 | flags |= TARGET_SCF_USE_CPUID; | |
452 | ||
75f8c1f6 NB |
453 | sess = cmd->sess; |
454 | if (!sess) { | |
455 | pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n"); | |
456 | return -EINVAL; | |
457 | } | |
458 | ||
459 | se_sess = sess->se_sess; | |
460 | if (!se_sess) { | |
461 | pr_err("Unable to locate active struct se_session\n"); | |
462 | return -EINVAL; | |
463 | } | |
464 | ||
ce1025cd | 465 | cmd->vha->tgt_counters.qla_core_sbt_cmd++; |
d6dfc868 | 466 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
467 | cmd->unpacked_lun, data_length, fcp_task_attr, |
468 | data_dir, flags); | |
75f8c1f6 NB |
469 | } |
470 | ||
43381ce8 | 471 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
472 | { |
473 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
a07100e0 | 474 | unsigned long flags; |
75f8c1f6 | 475 | |
75f8c1f6 NB |
476 | /* |
477 | * Ensure that the complete FCP WRITE payload has been received. | |
478 | * Otherwise return an exception via CHECK_CONDITION status. | |
479 | */ | |
e07f8f65 | 480 | cmd->cmd_in_wq = 0; |
a07100e0 QT |
481 | |
482 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
483 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK; | |
484 | if (cmd->aborted) { | |
485 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE; | |
486 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
487 | ||
488 | tcm_qla2xxx_free_cmd(cmd); | |
489 | return; | |
490 | } | |
491 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
492 | ||
ce1025cd | 493 | cmd->vha->tgt_counters.qla_core_ret_ctio++; |
75f8c1f6 NB |
494 | if (!cmd->write_data_transferred) { |
495 | /* | |
496 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
497 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
498 | */ | |
43381ce8 CH |
499 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
500 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
501 | return; | |
75f8c1f6 | 502 | } |
75f8c1f6 | 503 | |
f83adb61 QT |
504 | if (cmd->se_cmd.pi_err) |
505 | transport_generic_request_failure(&cmd->se_cmd, | |
506 | cmd->se_cmd.pi_err); | |
507 | else | |
508 | transport_generic_request_failure(&cmd->se_cmd, | |
509 | TCM_CHECK_CONDITION_ABORT_CMD); | |
510 | ||
43381ce8 | 511 | return; |
75f8c1f6 | 512 | } |
43381ce8 CH |
513 | |
514 | return target_execute_cmd(&cmd->se_cmd); | |
515 | } | |
516 | ||
517 | /* | |
518 | * Called from qla_target.c:qlt_do_ctio_completion() | |
519 | */ | |
520 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
521 | { | |
e07f8f65 SK |
522 | cmd->cmd_flags |= BIT_10; |
523 | cmd->cmd_in_wq = 1; | |
43381ce8 | 524 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
fb3269ba | 525 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
526 | } |
527 | ||
f83adb61 QT |
528 | static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) |
529 | { | |
530 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
531 | ||
532 | /* take an extra kref to prevent cmd free too early. | |
533 | * need to wait for SCSI status/check condition to | |
534 | * finish responding generate by transport_generic_request_failure. | |
535 | */ | |
536 | kref_get(&cmd->se_cmd.cmd_kref); | |
537 | transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); | |
538 | } | |
539 | ||
540 | /* | |
541 | * Called from qla_target.c:qlt_do_ctio_completion() | |
542 | */ | |
543 | static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) | |
544 | { | |
545 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); | |
546 | queue_work(tcm_qla2xxx_free_wq, &cmd->work); | |
547 | } | |
548 | ||
75f8c1f6 NB |
549 | /* |
550 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
551 | */ | |
9389c3c9 RD |
552 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, uint32_t lun, |
553 | uint8_t tmr_func, uint32_t tag) | |
75f8c1f6 NB |
554 | { |
555 | struct qla_tgt_sess *sess = mcmd->sess; | |
556 | struct se_cmd *se_cmd = &mcmd->se_cmd; | |
557 | ||
558 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
559 | tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); | |
560 | } | |
561 | ||
562 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
563 | { | |
564 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
565 | struct qla_tgt_cmd, se_cmd); | |
566 | ||
a07100e0 QT |
567 | if (cmd->aborted) { |
568 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
569 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
570 | * already kick start the free. | |
571 | */ | |
572 | pr_debug("queue_data_in aborted cmd[%p] refcount %d " | |
573 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
574 | cmd,cmd->se_cmd.cmd_kref.refcount.counter, | |
575 | cmd->se_cmd.transport_state, | |
576 | cmd->se_cmd.t_state, | |
577 | cmd->se_cmd.se_cmd_flags); | |
578 | return 0; | |
579 | } | |
580 | ||
e07f8f65 | 581 | cmd->cmd_flags |= BIT_4; |
75f8c1f6 | 582 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 583 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
584 | |
585 | cmd->sg_cnt = se_cmd->t_data_nents; | |
586 | cmd->sg = se_cmd->t_data_sg; | |
587 | cmd->offset = 0; | |
588 | ||
f83adb61 QT |
589 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
590 | cmd->prot_sg = se_cmd->t_prot_sg; | |
591 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
592 | se_cmd->pi_err = 0; | |
593 | ||
75f8c1f6 NB |
594 | /* |
595 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
596 | */ | |
597 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
598 | se_cmd->scsi_status); | |
599 | } | |
600 | ||
601 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
602 | { | |
603 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
604 | struct qla_tgt_cmd, se_cmd); | |
605 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
606 | ||
607 | cmd->bufflen = se_cmd->data_length; | |
608 | cmd->sg = NULL; | |
609 | cmd->sg_cnt = 0; | |
610 | cmd->offset = 0; | |
b3faa2e8 | 611 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
e07f8f65 SK |
612 | if (cmd->cmd_flags & BIT_5) { |
613 | pr_crit("Bit_5 already set for cmd = %p.\n", cmd); | |
614 | dump_stack(); | |
615 | } | |
616 | cmd->cmd_flags |= BIT_5; | |
75f8c1f6 NB |
617 | |
618 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
619 | /* | |
620 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
621 | * for qla_tgt_xmit_response LLD code | |
622 | */ | |
b5aff3d2 RD |
623 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
624 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
625 | se_cmd->residual_count = 0; | |
626 | } | |
75f8c1f6 | 627 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 628 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
629 | |
630 | cmd->bufflen = 0; | |
631 | } | |
632 | /* | |
633 | * Now queue status response to qla2xxx LLD code and response ring | |
634 | */ | |
635 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
636 | } | |
637 | ||
b79fafac | 638 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
639 | { |
640 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
641 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
642 | struct qla_tgt_mgmt_cmd, se_cmd); | |
643 | ||
644 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
645 | mcmd, se_tmr->function, se_tmr->response); | |
646 | /* | |
647 | * Do translation between TCM TM response codes and | |
648 | * QLA2xxx FC TM response codes. | |
649 | */ | |
650 | switch (se_tmr->response) { | |
651 | case TMR_FUNCTION_COMPLETE: | |
652 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
653 | break; | |
654 | case TMR_TASK_DOES_NOT_EXIST: | |
655 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
656 | break; | |
657 | case TMR_FUNCTION_REJECTED: | |
658 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
659 | break; | |
660 | case TMR_LUN_DOES_NOT_EXIST: | |
661 | default: | |
662 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
663 | break; | |
664 | } | |
665 | /* | |
666 | * Queue the TM response to QLA2xxx LLD to build a | |
667 | * CTIO response packet. | |
668 | */ | |
669 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
670 | } |
671 | ||
a07100e0 QT |
672 | |
673 | #define DATA_WORK_NOT_FREE(_flags) \ | |
674 | (( _flags & (CMD_FLAG_DATA_WORK|CMD_FLAG_DATA_WORK_FREE)) == \ | |
675 | CMD_FLAG_DATA_WORK) | |
131e6abc NB |
676 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
677 | { | |
678 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
679 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
680 | unsigned long flags; |
681 | ||
682 | if (qlt_abort_cmd(cmd)) | |
683 | return; | |
684 | ||
685 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
686 | if ((cmd->state == QLA_TGT_STATE_NEW)|| | |
687 | ((cmd->state == QLA_TGT_STATE_DATA_IN) && | |
688 | DATA_WORK_NOT_FREE(cmd->cmd_flags)) ) { | |
689 | ||
690 | cmd->cmd_flags |= CMD_FLAG_DATA_WORK_FREE; | |
691 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
692 | /* Cmd have not reached firmware. | |
693 | * Use this trigger to free it. */ | |
694 | tcm_qla2xxx_free_cmd(cmd); | |
695 | return; | |
696 | } | |
697 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
698 | return; | |
699 | ||
131e6abc NB |
700 | } |
701 | ||
f2d5d9b9 NB |
702 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
703 | struct tcm_qla2xxx_nacl *, struct qla_tgt_sess *); | |
75f8c1f6 | 704 | /* |
7560151b | 705 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
706 | */ |
707 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess *sess) | |
708 | { | |
709 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
710 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
711 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
712 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
713 | struct tcm_qla2xxx_lport, lport_wwn); | |
714 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
715 | struct tcm_qla2xxx_nacl, se_node_acl); | |
716 | void *node; | |
717 | ||
718 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
719 | ||
720 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
721 | if (WARN_ON(node && (node != se_nacl))) { |
722 | /* | |
723 | * The nacl no longer matches what we think it should be. | |
724 | * Most likely a new dynamic acl has been added while | |
725 | * someone dropped the hardware lock. It clearly is a | |
726 | * bug elsewhere, but this bit can't make things worse. | |
727 | */ | |
728 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
729 | node, GFP_ATOMIC); | |
730 | } | |
75f8c1f6 NB |
731 | |
732 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
733 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
734 | /* |
735 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
736 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
737 | * | |
738 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
739 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
740 | * I/O to complete, to avoid a race between session shutdown execution | |
741 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
742 | */ | |
743 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
744 | } |
745 | ||
75f8c1f6 NB |
746 | static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess *sess) |
747 | { | |
7560151b | 748 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); |
08234e3a | 749 | target_sess_cmd_list_set_waiting(sess->se_sess); |
75f8c1f6 NB |
750 | } |
751 | ||
c7d6a803 CH |
752 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
753 | const char *name) | |
75f8c1f6 | 754 | { |
c7d6a803 CH |
755 | struct tcm_qla2xxx_nacl *nacl = |
756 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 757 | u64 wwnn; |
75f8c1f6 NB |
758 | |
759 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 760 | return -EINVAL; |
75f8c1f6 | 761 | |
75f8c1f6 NB |
762 | nacl->nport_wwnn = wwnn; |
763 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 764 | |
c7d6a803 | 765 | return 0; |
75f8c1f6 NB |
766 | } |
767 | ||
768 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
769 | ||
770 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
771 | \ | |
2eafd729 CH |
772 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ |
773 | struct config_item *item, char *page) \ | |
75f8c1f6 | 774 | { \ |
2eafd729 | 775 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
776 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
777 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
778 | \ | |
a309f489 | 779 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
780 | } \ |
781 | \ | |
2eafd729 CH |
782 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ |
783 | struct config_item *item, const char *page, size_t count) \ | |
75f8c1f6 | 784 | { \ |
2eafd729 | 785 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
786 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
787 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
2eafd729 | 788 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
75f8c1f6 NB |
789 | unsigned long val; \ |
790 | int ret; \ | |
791 | \ | |
792 | ret = kstrtoul(page, 0, &val); \ | |
793 | if (ret < 0) { \ | |
794 | pr_err("kstrtoul() failed with" \ | |
795 | " ret: %d\n", ret); \ | |
796 | return -EINVAL; \ | |
797 | } \ | |
75f8c1f6 NB |
798 | \ |
799 | if ((val != 0) && (val != 1)) { \ | |
800 | pr_err("Illegal boolean value %lu\n", val); \ | |
801 | return -EINVAL; \ | |
802 | } \ | |
803 | \ | |
2eafd729 CH |
804 | a->name = val; \ |
805 | \ | |
806 | return count; \ | |
807 | } \ | |
808 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) | |
75f8c1f6 | 809 | |
75f8c1f6 | 810 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
75f8c1f6 | 811 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
75f8c1f6 | 812 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
75f8c1f6 | 813 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
de04a8aa | 814 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
de04a8aa | 815 | |
75f8c1f6 | 816 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
2eafd729 CH |
817 | &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, |
818 | &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, | |
819 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, | |
820 | &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, | |
821 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, | |
75f8c1f6 NB |
822 | NULL, |
823 | }; | |
824 | ||
825 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
826 | ||
2eafd729 CH |
827 | static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, |
828 | char *page) | |
75f8c1f6 | 829 | { |
2eafd729 | 830 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
831 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
832 | struct tcm_qla2xxx_tpg, se_tpg); | |
833 | ||
834 | return snprintf(page, PAGE_SIZE, "%d\n", | |
835 | atomic_read(&tpg->lport_tpg_enabled)); | |
836 | } | |
837 | ||
7474f52a NB |
838 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
839 | { | |
840 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
841 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
842 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
843 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
844 | ||
d588cf8f | 845 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
846 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
847 | qlt_enable_vha(base_vha); | |
848 | } | |
849 | complete(&base_tpg->tpg_base_comp); | |
850 | } | |
851 | ||
852 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
853 | { | |
854 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
855 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
856 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
857 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
858 | ||
859 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
860 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 861 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
862 | } |
863 | complete(&base_tpg->tpg_base_comp); | |
864 | } | |
865 | ||
2eafd729 CH |
866 | static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, |
867 | const char *page, size_t count) | |
75f8c1f6 | 868 | { |
2eafd729 | 869 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
870 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
871 | struct tcm_qla2xxx_tpg, se_tpg); | |
872 | unsigned long op; | |
873 | int rc; | |
874 | ||
875 | rc = kstrtoul(page, 0, &op); | |
876 | if (rc < 0) { | |
877 | pr_err("kstrtoul() returned %d\n", rc); | |
878 | return -EINVAL; | |
879 | } | |
880 | if ((op != 1) && (op != 0)) { | |
881 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
882 | return -EINVAL; | |
883 | } | |
75f8c1f6 | 884 | if (op) { |
7474f52a NB |
885 | if (atomic_read(&tpg->lport_tpg_enabled)) |
886 | return -EEXIST; | |
887 | ||
888 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 889 | } else { |
7474f52a NB |
890 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
891 | return count; | |
892 | ||
893 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 894 | } |
7474f52a NB |
895 | init_completion(&tpg->tpg_base_comp); |
896 | schedule_work(&tpg->tpg_base_work); | |
897 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 898 | |
7474f52a NB |
899 | if (op) { |
900 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
901 | return -ENODEV; | |
902 | } else { | |
903 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
904 | return -EPERM; | |
905 | } | |
75f8c1f6 NB |
906 | return count; |
907 | } | |
908 | ||
2eafd729 CH |
909 | static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, |
910 | char *page) | |
d23dbaaa | 911 | { |
2eafd729 | 912 | return target_show_dynamic_sessions(to_tpg(item), page); |
d23dbaaa NB |
913 | } |
914 | ||
2eafd729 CH |
915 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, |
916 | const char *page, size_t count) | |
64b16887 | 917 | { |
2eafd729 | 918 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
919 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
920 | struct tcm_qla2xxx_tpg, se_tpg); | |
921 | unsigned long val; | |
922 | int ret = kstrtoul(page, 0, &val); | |
923 | ||
924 | if (ret) { | |
925 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
926 | return ret; | |
927 | } | |
928 | if (val != 0 && val != 1 && val != 3) { | |
929 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
930 | return -EINVAL; | |
931 | } | |
932 | tpg->tpg_attrib.fabric_prot_type = val; | |
933 | ||
934 | return count; | |
935 | } | |
936 | ||
2eafd729 CH |
937 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, |
938 | char *page) | |
64b16887 | 939 | { |
2eafd729 | 940 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
941 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
942 | struct tcm_qla2xxx_tpg, se_tpg); | |
943 | ||
944 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
945 | } | |
2eafd729 | 946 | |
3786dc45 | 947 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable); |
2eafd729 CH |
948 | CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); |
949 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); | |
64b16887 | 950 | |
75f8c1f6 | 951 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
2eafd729 CH |
952 | &tcm_qla2xxx_tpg_attr_enable, |
953 | &tcm_qla2xxx_tpg_attr_dynamic_sessions, | |
954 | &tcm_qla2xxx_tpg_attr_fabric_prot_type, | |
75f8c1f6 NB |
955 | NULL, |
956 | }; | |
957 | ||
958 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
959 | struct se_wwn *wwn, | |
960 | struct config_group *group, | |
961 | const char *name) | |
962 | { | |
963 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
964 | struct tcm_qla2xxx_lport, lport_wwn); | |
965 | struct tcm_qla2xxx_tpg *tpg; | |
966 | unsigned long tpgt; | |
967 | int ret; | |
968 | ||
969 | if (strstr(name, "tpgt_") != name) | |
970 | return ERR_PTR(-EINVAL); | |
971 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
972 | return ERR_PTR(-EINVAL); | |
973 | ||
0e8cd71c | 974 | if ((tpgt != 1)) { |
75f8c1f6 NB |
975 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
976 | return ERR_PTR(-ENOSYS); | |
977 | } | |
978 | ||
979 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
980 | if (!tpg) { | |
981 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
982 | return ERR_PTR(-ENOMEM); | |
983 | } | |
984 | tpg->lport = lport; | |
985 | tpg->lport_tpgt = tpgt; | |
986 | /* | |
987 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
988 | * NodeACLs | |
989 | */ | |
a309f489 AG |
990 | tpg->tpg_attrib.generate_node_acls = 1; |
991 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
992 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
993 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
75f8c1f6 | 994 | |
bc0c94b1 | 995 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
996 | if (ret < 0) { |
997 | kfree(tpg); | |
998 | return NULL; | |
999 | } | |
0e8cd71c SK |
1000 | |
1001 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1002 | |
1003 | return &tpg->se_tpg; | |
1004 | } | |
1005 | ||
1006 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1007 | { | |
1008 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1009 | struct tcm_qla2xxx_tpg, se_tpg); | |
1010 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1011 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1012 | /* |
1013 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1014 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1015 | */ | |
0e8cd71c SK |
1016 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1017 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1018 | |
1019 | core_tpg_deregister(se_tpg); | |
1020 | /* | |
1021 | * Clear local TPG=1 pointer for non NPIV mode. | |
1022 | */ | |
394d62ba | 1023 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1024 | kfree(tpg); |
1025 | } | |
1026 | ||
2eafd729 CH |
1027 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, |
1028 | char *page) | |
394d62ba | 1029 | { |
2eafd729 | 1030 | return tcm_qla2xxx_tpg_enable_show(item, page); |
394d62ba NB |
1031 | } |
1032 | ||
2eafd729 CH |
1033 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, |
1034 | const char *page, size_t count) | |
394d62ba | 1035 | { |
2eafd729 | 1036 | struct se_portal_group *se_tpg = to_tpg(item); |
394d62ba NB |
1037 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
1038 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1039 | struct tcm_qla2xxx_lport, lport_wwn); | |
1040 | struct scsi_qla_host *vha = lport->qla_vha; | |
1041 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1042 | struct tcm_qla2xxx_tpg, se_tpg); | |
1043 | unsigned long op; | |
1044 | int rc; | |
1045 | ||
1046 | rc = kstrtoul(page, 0, &op); | |
1047 | if (rc < 0) { | |
1048 | pr_err("kstrtoul() returned %d\n", rc); | |
1049 | return -EINVAL; | |
1050 | } | |
1051 | if ((op != 1) && (op != 0)) { | |
1052 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1053 | return -EINVAL; | |
1054 | } | |
1055 | if (op) { | |
1056 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1057 | return -EEXIST; | |
1058 | ||
1059 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1060 | qlt_enable_vha(vha); | |
1061 | } else { | |
1062 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1063 | return count; | |
1064 | ||
1065 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1066 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1067 | } | |
1068 | ||
1069 | return count; | |
1070 | } | |
1071 | ||
2eafd729 | 1072 | CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); |
394d62ba NB |
1073 | |
1074 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
2eafd729 | 1075 | &tcm_qla2xxx_npiv_tpg_attr_enable, |
394d62ba NB |
1076 | NULL, |
1077 | }; | |
1078 | ||
75f8c1f6 NB |
1079 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1080 | struct se_wwn *wwn, | |
1081 | struct config_group *group, | |
1082 | const char *name) | |
1083 | { | |
1084 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1085 | struct tcm_qla2xxx_lport, lport_wwn); | |
1086 | struct tcm_qla2xxx_tpg *tpg; | |
1087 | unsigned long tpgt; | |
1088 | int ret; | |
1089 | ||
1090 | if (strstr(name, "tpgt_") != name) | |
1091 | return ERR_PTR(-EINVAL); | |
1092 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1093 | return ERR_PTR(-EINVAL); | |
1094 | ||
1095 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1096 | if (!tpg) { | |
1097 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1098 | return ERR_PTR(-ENOMEM); | |
1099 | } | |
1100 | tpg->lport = lport; | |
1101 | tpg->lport_tpgt = tpgt; | |
1102 | ||
0e8cd71c SK |
1103 | /* |
1104 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1105 | * NodeACLs | |
1106 | */ | |
1107 | tpg->tpg_attrib.generate_node_acls = 1; | |
1108 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1109 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1110 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1111 | ||
bc0c94b1 | 1112 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1113 | if (ret < 0) { |
1114 | kfree(tpg); | |
1115 | return NULL; | |
1116 | } | |
0e8cd71c | 1117 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1118 | return &tpg->se_tpg; |
1119 | } | |
1120 | ||
1121 | /* | |
7560151b | 1122 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1123 | */ |
1124 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_s_id( | |
1125 | scsi_qla_host_t *vha, | |
1126 | const uint8_t *s_id) | |
1127 | { | |
75f8c1f6 NB |
1128 | struct tcm_qla2xxx_lport *lport; |
1129 | struct se_node_acl *se_nacl; | |
1130 | struct tcm_qla2xxx_nacl *nacl; | |
1131 | u32 key; | |
1132 | ||
0e8cd71c | 1133 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1134 | if (!lport) { |
1135 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1136 | dump_stack(); | |
1137 | return NULL; | |
1138 | } | |
1139 | ||
8b2f5ff3 | 1140 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1141 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
1142 | ||
1143 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1144 | if (!se_nacl) { | |
1145 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1146 | return NULL; | |
1147 | } | |
1148 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1149 | se_nacl, se_nacl->initiatorname); | |
1150 | ||
1151 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1152 | if (!nacl->qla_tgt_sess) { | |
1153 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1154 | return NULL; | |
1155 | } | |
1156 | ||
1157 | return nacl->qla_tgt_sess; | |
1158 | } | |
1159 | ||
1160 | /* | |
7560151b | 1161 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1162 | */ |
1163 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1164 | struct tcm_qla2xxx_lport *lport, | |
1165 | struct se_node_acl *new_se_nacl, | |
1166 | struct tcm_qla2xxx_nacl *nacl, | |
1167 | struct se_session *se_sess, | |
1168 | struct qla_tgt_sess *qla_tgt_sess, | |
1169 | uint8_t *s_id) | |
1170 | { | |
1171 | u32 key; | |
1172 | void *slot; | |
1173 | int rc; | |
1174 | ||
8b2f5ff3 | 1175 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1176 | pr_debug("set_sess_by_s_id: %06x\n", key); |
1177 | ||
1178 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1179 | if (!slot) { | |
1180 | if (new_se_nacl) { | |
1181 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1182 | nacl->nport_id = key; | |
1183 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1184 | new_se_nacl, GFP_ATOMIC); | |
1185 | if (rc) | |
1186 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1187 | (int)key); | |
1188 | } else { | |
1189 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1190 | } | |
1191 | ||
1192 | qla_tgt_sess->se_sess = se_sess; | |
1193 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1194 | return; | |
1195 | } | |
1196 | ||
1197 | if (nacl->qla_tgt_sess) { | |
1198 | if (new_se_nacl == NULL) { | |
1199 | pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1200 | btree_remove32(&lport->lport_fcport_map, key); | |
1201 | nacl->qla_tgt_sess = NULL; | |
1202 | return; | |
1203 | } | |
1204 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n"); | |
1205 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1206 | qla_tgt_sess->se_sess = se_sess; | |
1207 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1208 | return; | |
1209 | } | |
1210 | ||
1211 | if (new_se_nacl == NULL) { | |
1212 | pr_debug("Clearing existing fc_port entry\n"); | |
1213 | btree_remove32(&lport->lport_fcport_map, key); | |
1214 | return; | |
1215 | } | |
1216 | ||
1217 | pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n"); | |
1218 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); | |
1219 | qla_tgt_sess->se_sess = se_sess; | |
1220 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1221 | ||
1222 | pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n", | |
1223 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1224 | } | |
1225 | ||
1226 | /* | |
7560151b | 1227 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1228 | */ |
1229 | static struct qla_tgt_sess *tcm_qla2xxx_find_sess_by_loop_id( | |
1230 | scsi_qla_host_t *vha, | |
1231 | const uint16_t loop_id) | |
1232 | { | |
75f8c1f6 NB |
1233 | struct tcm_qla2xxx_lport *lport; |
1234 | struct se_node_acl *se_nacl; | |
1235 | struct tcm_qla2xxx_nacl *nacl; | |
1236 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1237 | ||
0e8cd71c | 1238 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1239 | if (!lport) { |
1240 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1241 | dump_stack(); | |
1242 | return NULL; | |
1243 | } | |
1244 | ||
1245 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1246 | ||
1247 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1248 | se_nacl = fc_loopid->se_nacl; | |
1249 | if (!se_nacl) { | |
1250 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1251 | loop_id); | |
1252 | return NULL; | |
1253 | } | |
1254 | ||
1255 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1256 | ||
1257 | if (!nacl->qla_tgt_sess) { | |
1258 | pr_err("Unable to locate struct qla_tgt_sess\n"); | |
1259 | return NULL; | |
1260 | } | |
1261 | ||
1262 | return nacl->qla_tgt_sess; | |
1263 | } | |
1264 | ||
1265 | /* | |
7560151b | 1266 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1267 | */ |
1268 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1269 | struct tcm_qla2xxx_lport *lport, | |
1270 | struct se_node_acl *new_se_nacl, | |
1271 | struct tcm_qla2xxx_nacl *nacl, | |
1272 | struct se_session *se_sess, | |
1273 | struct qla_tgt_sess *qla_tgt_sess, | |
1274 | uint16_t loop_id) | |
1275 | { | |
1276 | struct se_node_acl *saved_nacl; | |
1277 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1278 | ||
1279 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1280 | ||
1281 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1282 | lport->lport_loopid_map)[loop_id]; | |
1283 | ||
1284 | saved_nacl = fc_loopid->se_nacl; | |
1285 | if (!saved_nacl) { | |
1286 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1287 | fc_loopid->se_nacl = new_se_nacl; | |
1288 | if (qla_tgt_sess->se_sess != se_sess) | |
1289 | qla_tgt_sess->se_sess = se_sess; | |
1290 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1291 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1292 | return; | |
1293 | } | |
1294 | ||
1295 | if (nacl->qla_tgt_sess) { | |
1296 | if (new_se_nacl == NULL) { | |
1297 | pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1298 | fc_loopid->se_nacl = NULL; | |
1299 | nacl->qla_tgt_sess = NULL; | |
1300 | return; | |
1301 | } | |
1302 | ||
1303 | pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n"); | |
1304 | fc_loopid->se_nacl = new_se_nacl; | |
1305 | if (qla_tgt_sess->se_sess != se_sess) | |
1306 | qla_tgt_sess->se_sess = se_sess; | |
1307 | if (nacl->qla_tgt_sess != qla_tgt_sess) | |
1308 | nacl->qla_tgt_sess = qla_tgt_sess; | |
1309 | return; | |
1310 | } | |
1311 | ||
1312 | if (new_se_nacl == NULL) { | |
1313 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1314 | fc_loopid->se_nacl = NULL; | |
1315 | return; | |
1316 | } | |
1317 | ||
1318 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\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 | ||
1325 | pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n", | |
1326 | nacl->qla_tgt_sess, new_se_nacl, new_se_nacl->initiatorname); | |
1327 | } | |
1328 | ||
f2d5d9b9 | 1329 | /* |
7560151b | 1330 | * Should always be called with qla_hw_data->tgt.sess_lock held. |
f2d5d9b9 NB |
1331 | */ |
1332 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
1333 | struct tcm_qla2xxx_nacl *nacl, struct qla_tgt_sess *sess) | |
1334 | { | |
1335 | struct se_session *se_sess = sess->se_sess; | |
1336 | unsigned char be_sid[3]; | |
1337 | ||
1338 | be_sid[0] = sess->s_id.b.domain; | |
1339 | be_sid[1] = sess->s_id.b.area; | |
1340 | be_sid[2] = sess->s_id.b.al_pa; | |
1341 | ||
1342 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1343 | sess, be_sid); | |
1344 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1345 | sess, sess->loop_id); | |
1346 | } | |
1347 | ||
75f8c1f6 NB |
1348 | static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) |
1349 | { | |
1350 | struct qla_tgt *tgt = sess->tgt; | |
1351 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1352 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 | 1353 | struct se_session *se_sess; |
75f8c1f6 | 1354 | struct tcm_qla2xxx_lport *lport; |
75f8c1f6 NB |
1355 | |
1356 | BUG_ON(in_interrupt()); | |
1357 | ||
1358 | se_sess = sess->se_sess; | |
1359 | if (!se_sess) { | |
1360 | pr_err("struct qla_tgt_sess->se_sess is NULL\n"); | |
1361 | dump_stack(); | |
1362 | return; | |
1363 | } | |
75f8c1f6 | 1364 | |
0e8cd71c | 1365 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1366 | if (!lport) { |
1367 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1368 | dump_stack(); | |
1369 | return; | |
1370 | } | |
be646c2d | 1371 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1372 | |
1373 | transport_deregister_session_configfs(sess->se_sess); | |
1374 | transport_deregister_session(sess->se_sess); | |
1375 | } | |
1376 | ||
1b655b19 NB |
1377 | static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg, |
1378 | struct se_session *se_sess, void *p) | |
1379 | { | |
1380 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1381 | struct tcm_qla2xxx_tpg, se_tpg); | |
1382 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1383 | struct qla_hw_data *ha = lport->qla_vha->hw; | |
1384 | struct se_node_acl *se_nacl = se_sess->se_node_acl; | |
1385 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1386 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1387 | struct qla_tgt_sess *qlat_sess = p; | |
1388 | uint16_t loop_id = qlat_sess->loop_id; | |
1389 | unsigned long flags; | |
1390 | unsigned char be_sid[3]; | |
1391 | ||
1392 | be_sid[0] = qlat_sess->s_id.b.domain; | |
1393 | be_sid[1] = qlat_sess->s_id.b.area; | |
1394 | be_sid[2] = qlat_sess->s_id.b.al_pa; | |
1395 | ||
1396 | /* | |
1397 | * And now setup se_nacl and session pointers into HW lport internal | |
1398 | * mappings for fabric S_ID and LOOP_ID. | |
1399 | */ | |
1400 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1401 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, | |
1402 | se_sess, qlat_sess, be_sid); | |
1403 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, | |
1404 | se_sess, qlat_sess, loop_id); | |
1405 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1406 | ||
1407 | return 0; | |
1408 | } | |
1409 | ||
75f8c1f6 NB |
1410 | /* |
1411 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1412 | * to locate struct se_node_acl | |
1413 | */ | |
1414 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1415 | scsi_qla_host_t *vha, | |
1416 | unsigned char *fc_wwpn, | |
1b655b19 | 1417 | struct qla_tgt_sess *qlat_sess) |
75f8c1f6 NB |
1418 | { |
1419 | struct qla_hw_data *ha = vha->hw; | |
1420 | struct tcm_qla2xxx_lport *lport; | |
1421 | struct tcm_qla2xxx_tpg *tpg; | |
75f8c1f6 | 1422 | struct se_session *se_sess; |
75f8c1f6 | 1423 | unsigned char port_name[36]; |
03e8c680 | 1424 | int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count : |
51a07f84 | 1425 | TCM_QLA2XXX_DEFAULT_TAGS; |
75f8c1f6 | 1426 | |
0e8cd71c | 1427 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1428 | if (!lport) { |
1429 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1430 | dump_stack(); | |
1431 | return -EINVAL; | |
1432 | } | |
1433 | /* | |
1434 | * Locate the TPG=1 reference.. | |
1435 | */ | |
1436 | tpg = lport->tpg_1; | |
1437 | if (!tpg) { | |
1438 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1439 | return -EINVAL; | |
1440 | } | |
75f8c1f6 NB |
1441 | /* |
1442 | * Format the FCP Initiator port_name into colon seperated values to | |
1443 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1444 | */ | |
1445 | memset(&port_name, 0, 36); | |
3c9786e5 | 1446 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1447 | /* |
1448 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1449 | * via ConfigFS, or via running in TPG demo mode. | |
1450 | */ | |
1b655b19 NB |
1451 | se_sess = target_alloc_session(&tpg->se_tpg, num_tags, |
1452 | sizeof(struct qla_tgt_cmd), | |
1453 | TARGET_PROT_ALL, port_name, | |
1454 | qlat_sess, tcm_qla2xxx_session_cb); | |
1455 | if (IS_ERR(se_sess)) | |
1456 | return PTR_ERR(se_sess); | |
75f8c1f6 NB |
1457 | |
1458 | return 0; | |
1459 | } | |
1460 | ||
c8292d1d RD |
1461 | static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, |
1462 | uint16_t loop_id, bool conf_compl_supported) | |
1463 | { | |
1464 | struct qla_tgt *tgt = sess->tgt; | |
1465 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1466 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1467 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1468 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1469 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1470 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1471 | u32 key; | |
1472 | ||
1473 | ||
1474 | if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) | |
7b833558 OK |
1475 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1476 | sess, sess->port_name, | |
1477 | sess->loop_id, loop_id, sess->s_id.b.domain, | |
1478 | sess->s_id.b.area, sess->s_id.b.al_pa, s_id.b.domain, | |
1479 | s_id.b.area, s_id.b.al_pa); | |
c8292d1d RD |
1480 | |
1481 | if (sess->loop_id != loop_id) { | |
1482 | /* | |
1483 | * Because we can shuffle loop IDs around and we | |
1484 | * update different sessions non-atomically, we might | |
1485 | * have overwritten this session's old loop ID | |
1486 | * already, and we might end up overwriting some other | |
1487 | * session that will be updated later. So we have to | |
1488 | * be extra careful and we can't warn about those things... | |
1489 | */ | |
1490 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1491 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1492 | ||
1493 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1494 | ||
1495 | sess->loop_id = loop_id; | |
1496 | } | |
1497 | ||
1498 | if (sess->s_id.b24 != s_id.b24) { | |
1499 | key = (((u32) sess->s_id.b.domain << 16) | | |
1500 | ((u32) sess->s_id.b.area << 8) | | |
1501 | ((u32) sess->s_id.b.al_pa)); | |
1502 | ||
1503 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
1504 | WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, | |
1505 | "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1506 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1507 | else | |
1508 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
1509 | sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); | |
1510 | ||
1511 | key = (((u32) s_id.b.domain << 16) | | |
1512 | ((u32) s_id.b.area << 8) | | |
1513 | ((u32) s_id.b.al_pa)); | |
1514 | ||
1515 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1516 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1517 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1518 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1519 | } else { | |
1520 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); | |
1521 | } | |
1522 | ||
1523 | sess->s_id = s_id; | |
1524 | nacl->nport_id = key; | |
1525 | } | |
1526 | ||
1527 | sess->conf_compl_supported = conf_compl_supported; | |
a6ca8878 AP |
1528 | |
1529 | /* Reset logout parameters to default */ | |
1530 | sess->logout_on_delete = 1; | |
1531 | sess->keep_nport_handle = 0; | |
c8292d1d RD |
1532 | } |
1533 | ||
75f8c1f6 NB |
1534 | /* |
1535 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1536 | */ | |
1537 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1538 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1539 | .handle_data = tcm_qla2xxx_handle_data, | |
f83adb61 | 1540 | .handle_dif_err = tcm_qla2xxx_handle_dif_err, |
75f8c1f6 NB |
1541 | .handle_tmr = tcm_qla2xxx_handle_tmr, |
1542 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1543 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1544 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1545 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1546 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1547 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1548 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1549 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
75f8c1f6 NB |
1550 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
1551 | }; | |
1552 | ||
1553 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1554 | { | |
1555 | int rc; | |
1556 | ||
1557 | rc = btree_init32(&lport->lport_fcport_map); | |
1558 | if (rc) { | |
1559 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1560 | return rc; | |
1561 | } | |
1562 | ||
1563 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1564 | 65536); | |
1565 | if (!lport->lport_loopid_map) { | |
1566 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1567 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1568 | btree_destroy32(&lport->lport_fcport_map); | |
1569 | return -ENOMEM; | |
1570 | } | |
1571 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1572 | * 65536); | |
1573 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1574 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1575 | return 0; | |
1576 | } | |
1577 | ||
49a47f2c NB |
1578 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1579 | void *target_lport_ptr, | |
1580 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1581 | { |
49a47f2c NB |
1582 | struct qla_hw_data *ha = vha->hw; |
1583 | struct tcm_qla2xxx_lport *lport = | |
1584 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1585 | /* |
49a47f2c | 1586 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1587 | */ |
49a47f2c NB |
1588 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1589 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1590 | lport->qla_vha = vha; |
1591 | ||
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1596 | struct target_fabric_configfs *tf, | |
1597 | struct config_group *group, | |
1598 | const char *name) | |
1599 | { | |
1600 | struct tcm_qla2xxx_lport *lport; | |
1601 | u64 wwpn; | |
1602 | int ret = -ENODEV; | |
1603 | ||
1604 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1605 | return ERR_PTR(-EINVAL); | |
1606 | ||
1607 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1608 | if (!lport) { | |
1609 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1610 | return ERR_PTR(-ENOMEM); | |
1611 | } | |
1612 | lport->lport_wwpn = wwpn; | |
1613 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1614 | wwpn); | |
c046aa0f | 1615 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1616 | |
1617 | ret = tcm_qla2xxx_init_lport(lport); | |
1618 | if (ret != 0) | |
1619 | goto out; | |
1620 | ||
49a47f2c NB |
1621 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1622 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1623 | if (ret != 0) |
1624 | goto out_lport; | |
1625 | ||
1626 | return &lport->lport_wwn; | |
1627 | out_lport: | |
1628 | vfree(lport->lport_loopid_map); | |
1629 | btree_destroy32(&lport->lport_fcport_map); | |
1630 | out: | |
1631 | kfree(lport); | |
1632 | return ERR_PTR(ret); | |
1633 | } | |
1634 | ||
1635 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1636 | { | |
1637 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1638 | struct tcm_qla2xxx_lport, lport_wwn); | |
1639 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1640 | struct se_node_acl *node; |
1641 | u32 key = 0; | |
1642 | ||
1643 | /* | |
1644 | * Call into qla2x_target.c LLD logic to complete the | |
1645 | * shutdown of struct qla_tgt after the call to | |
1646 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1647 | */ | |
0e8cd71c SK |
1648 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1649 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1650 | |
1651 | qlt_lport_deregister(vha); | |
1652 | ||
1653 | vfree(lport->lport_loopid_map); | |
1654 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1655 | btree_remove32(&lport->lport_fcport_map, key); | |
1656 | btree_destroy32(&lport->lport_fcport_map); | |
1657 | kfree(lport); | |
1658 | } | |
1659 | ||
49a47f2c NB |
1660 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1661 | void *target_lport_ptr, | |
1662 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1663 | { | |
1664 | struct fc_vport *vport; | |
1665 | struct Scsi_Host *sh = base_vha->host; | |
1666 | struct scsi_qla_host *npiv_vha; | |
1667 | struct tcm_qla2xxx_lport *lport = | |
1668 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1669 | struct tcm_qla2xxx_lport *base_lport = |
1670 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
49a47f2c NB |
1671 | struct fc_vport_identifiers vport_id; |
1672 | ||
1673 | if (!qla_tgt_mode_enabled(base_vha)) { | |
1674 | pr_err("qla2xxx base_vha not enabled for target mode\n"); | |
1675 | return -EPERM; | |
1676 | } | |
1677 | ||
7474f52a NB |
1678 | if (!base_lport || !base_lport->tpg_1 || |
1679 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1680 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1681 | return -EPERM; | |
1682 | } | |
7474f52a | 1683 | |
49a47f2c NB |
1684 | memset(&vport_id, 0, sizeof(vport_id)); |
1685 | vport_id.port_name = npiv_wwpn; | |
1686 | vport_id.node_name = npiv_wwnn; | |
1687 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1688 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1689 | vport_id.disable = false; | |
1690 | ||
1691 | vport = fc_vport_create(sh, 0, &vport_id); | |
1692 | if (!vport) { | |
1693 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1694 | return -ENODEV; | |
1695 | } | |
1696 | /* | |
1697 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1698 | */ | |
1699 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1700 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1701 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1702 | scsi_host_get(npiv_vha->host); |
1703 | return 0; | |
1704 | } | |
1705 | ||
1706 | ||
75f8c1f6 NB |
1707 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1708 | struct target_fabric_configfs *tf, | |
1709 | struct config_group *group, | |
1710 | const char *name) | |
1711 | { | |
1712 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1713 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1714 | char *p, tmp[128]; | |
75f8c1f6 NB |
1715 | int ret; |
1716 | ||
49a47f2c NB |
1717 | snprintf(tmp, 128, "%s", name); |
1718 | ||
1719 | p = strchr(tmp, '@'); | |
1720 | if (!p) { | |
1721 | pr_err("Unable to locate NPIV '@' seperator\n"); | |
1722 | return ERR_PTR(-EINVAL); | |
1723 | } | |
1724 | *p++ = '\0'; | |
1725 | ||
1726 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1727 | return ERR_PTR(-EINVAL); | |
1728 | ||
1729 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1730 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1731 | return ERR_PTR(-EINVAL); |
1732 | ||
1733 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1734 | if (!lport) { | |
1735 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1736 | return ERR_PTR(-ENOMEM); | |
1737 | } | |
1738 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1739 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1740 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1741 | |
0e8cd71c | 1742 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1743 | if (ret != 0) |
1744 | goto out; | |
1745 | ||
49a47f2c NB |
1746 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1747 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1748 | if (ret != 0) |
1749 | goto out_lport; | |
1750 | ||
75f8c1f6 | 1751 | return &lport->lport_wwn; |
0e8cd71c SK |
1752 | out_lport: |
1753 | vfree(lport->lport_loopid_map); | |
1754 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1755 | out: |
1756 | kfree(lport); | |
1757 | return ERR_PTR(ret); | |
1758 | } | |
1759 | ||
1760 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1761 | { | |
1762 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1763 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1764 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1765 | struct qla_hw_data *ha = npiv_vha->hw; | |
1766 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1767 | ||
1768 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1769 | /* |
0e8cd71c | 1770 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1771 | */ |
49a47f2c NB |
1772 | fc_vport_terminate(npiv_vha->fc_vport); |
1773 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1774 | kfree(lport); |
1775 | } | |
1776 | ||
1777 | ||
2eafd729 CH |
1778 | static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, |
1779 | char *page) | |
75f8c1f6 NB |
1780 | { |
1781 | return sprintf(page, | |
1782 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
1783 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1784 | utsname()->machine); | |
1785 | } | |
1786 | ||
2eafd729 | 1787 | CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); |
75f8c1f6 NB |
1788 | |
1789 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
2eafd729 | 1790 | &tcm_qla2xxx_wwn_attr_version, |
75f8c1f6 NB |
1791 | NULL, |
1792 | }; | |
1793 | ||
9ac8928e CH |
1794 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1795 | .module = THIS_MODULE, | |
1796 | .name = "qla2xxx", | |
144bc4c2 | 1797 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
8f9b5654 NB |
1798 | /* |
1799 | * XXX: Limit assumes single page per scatter-gather-list entry. | |
1800 | * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096 | |
1801 | */ | |
1802 | .max_data_sg_nents = 1200, | |
75f8c1f6 | 1803 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
75f8c1f6 NB |
1804 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1805 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1806 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1807 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1808 | .tpg_check_demo_mode_write_protect = | |
1809 | tcm_qla2xxx_check_demo_write_protect, | |
1810 | .tpg_check_prod_mode_write_protect = | |
1811 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1812 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1813 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1814 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1815 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1816 | .release_cmd = tcm_qla2xxx_release_cmd, | |
75f8c1f6 NB |
1817 | .close_session = tcm_qla2xxx_close_session, |
1818 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1819 | .sess_get_initiator_sid = NULL, | |
1820 | .write_pending = tcm_qla2xxx_write_pending, | |
1821 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1822 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1823 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1824 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1825 | .queue_status = tcm_qla2xxx_queue_status, | |
1826 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1827 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1828 | /* |
1829 | * Setup function pointers for generic logic in | |
1830 | * target_core_fabric_configfs.c | |
1831 | */ | |
1832 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1833 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1834 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1835 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1836 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1837 | |
1838 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1839 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1840 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1841 | }; |
1842 | ||
9ac8928e CH |
1843 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1844 | .module = THIS_MODULE, | |
1845 | .name = "qla2xxx_npiv", | |
144bc4c2 | 1846 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1847 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
84197a36 | 1848 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1849 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
0e8cd71c SK |
1850 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1851 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1852 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1853 | .tpg_check_prod_mode_write_protect = | |
1854 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1855 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1856 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1857 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 1858 | .release_cmd = tcm_qla2xxx_release_cmd, |
75f8c1f6 NB |
1859 | .close_session = tcm_qla2xxx_close_session, |
1860 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1861 | .sess_get_initiator_sid = NULL, | |
1862 | .write_pending = tcm_qla2xxx_write_pending, | |
1863 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1864 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1865 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1866 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1867 | .queue_status = tcm_qla2xxx_queue_status, | |
1868 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1869 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1870 | /* |
1871 | * Setup function pointers for generic logic in | |
1872 | * target_core_fabric_configfs.c | |
1873 | */ | |
1874 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1875 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1876 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1877 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1878 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1879 | |
1880 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1881 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
1882 | }; |
1883 | ||
1884 | static int tcm_qla2xxx_register_configfs(void) | |
1885 | { | |
75f8c1f6 NB |
1886 | int ret; |
1887 | ||
1888 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
1889 | UTS_RELEASE"\n", TCM_QLA2XXX_VERSION, utsname()->sysname, | |
1890 | utsname()->machine); | |
9ac8928e CH |
1891 | |
1892 | ret = target_register_template(&tcm_qla2xxx_ops); | |
1893 | if (ret) | |
75f8c1f6 | 1894 | return ret; |
75f8c1f6 | 1895 | |
9ac8928e CH |
1896 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
1897 | if (ret) | |
75f8c1f6 | 1898 | goto out_fabric; |
75f8c1f6 NB |
1899 | |
1900 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
1901 | WQ_MEM_RECLAIM, 0); | |
1902 | if (!tcm_qla2xxx_free_wq) { | |
1903 | ret = -ENOMEM; | |
1904 | goto out_fabric_npiv; | |
1905 | } | |
1906 | ||
1907 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
1908 | if (!tcm_qla2xxx_cmd_wq) { | |
1909 | ret = -ENOMEM; | |
1910 | goto out_free_wq; | |
1911 | } | |
1912 | ||
1913 | return 0; | |
1914 | ||
1915 | out_free_wq: | |
1916 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
1917 | out_fabric_npiv: | |
9ac8928e | 1918 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 1919 | out_fabric: |
9ac8928e | 1920 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
1921 | return ret; |
1922 | } | |
1923 | ||
1924 | static void tcm_qla2xxx_deregister_configfs(void) | |
1925 | { | |
1926 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
1927 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
1928 | ||
9ac8928e CH |
1929 | target_unregister_template(&tcm_qla2xxx_ops); |
1930 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
1931 | } |
1932 | ||
1933 | static int __init tcm_qla2xxx_init(void) | |
1934 | { | |
1935 | int ret; | |
1936 | ||
1937 | ret = tcm_qla2xxx_register_configfs(); | |
1938 | if (ret < 0) | |
1939 | return ret; | |
1940 | ||
1941 | return 0; | |
1942 | } | |
1943 | ||
1944 | static void __exit tcm_qla2xxx_exit(void) | |
1945 | { | |
1946 | tcm_qla2xxx_deregister_configfs(); | |
1947 | } | |
1948 | ||
24c7d6c7 | 1949 | MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver"); |
75f8c1f6 NB |
1950 | MODULE_LICENSE("GPL"); |
1951 | module_init(tcm_qla2xxx_init); | |
1952 | module_exit(tcm_qla2xxx_exit); |