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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> | |
75f8c1f6 | 27 | #include <linux/utsname.h> |
5538d294 | 28 | #include <linux/vmalloc.h> |
75f8c1f6 NB |
29 | #include <linux/list.h> |
30 | #include <linux/slab.h> | |
75f8c1f6 NB |
31 | #include <linux/types.h> |
32 | #include <linux/string.h> | |
33 | #include <linux/configfs.h> | |
34 | #include <linux/ctype.h> | |
75f8c1f6 | 35 | #include <asm/unaligned.h> |
75f8c1f6 | 36 | #include <scsi/scsi_host.h> |
75f8c1f6 NB |
37 | #include <target/target_core_base.h> |
38 | #include <target/target_core_fabric.h> | |
75f8c1f6 NB |
39 | |
40 | #include "qla_def.h" | |
41 | #include "qla_target.h" | |
42 | #include "tcm_qla2xxx.h" | |
43 | ||
4d6609c4 | 44 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
4d6609c4 | 45 | |
75f8c1f6 NB |
46 | /* |
47 | * Parse WWN. | |
48 | * If strict, we require lower-case hex and colon separators to be sure | |
49 | * the name is the same as what would be generated by ft_format_wwn() | |
50 | * so the name and wwn are mapped one-to-one. | |
51 | */ | |
52 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
53 | { | |
54 | const char *cp; | |
55 | char c; | |
56 | u32 nibble; | |
57 | u32 byte = 0; | |
58 | u32 pos = 0; | |
59 | u32 err; | |
60 | ||
61 | *wwn = 0; | |
62 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
63 | c = *cp; | |
64 | if (c == '\n' && cp[1] == '\0') | |
65 | continue; | |
66 | if (strict && pos++ == 2 && byte++ < 7) { | |
67 | pos = 0; | |
68 | if (c == ':') | |
69 | continue; | |
70 | err = 1; | |
71 | goto fail; | |
72 | } | |
73 | if (c == '\0') { | |
74 | err = 2; | |
75 | if (strict && byte != 8) | |
76 | goto fail; | |
77 | return cp - name; | |
78 | } | |
79 | err = 3; | |
80 | if (isdigit(c)) | |
81 | nibble = c - '0'; | |
82 | else if (isxdigit(c) && (islower(c) || !strict)) | |
83 | nibble = tolower(c) - 'a' + 10; | |
84 | else | |
85 | goto fail; | |
86 | *wwn = (*wwn << 4) | nibble; | |
87 | } | |
88 | err = 4; | |
89 | fail: | |
90 | pr_debug("err %u len %zu pos %u byte %u\n", | |
91 | err, cp - name, pos, byte); | |
92 | return -1; | |
93 | } | |
94 | ||
95 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
96 | { | |
97 | u8 b[8]; | |
98 | ||
99 | put_unaligned_be64(wwn, b); | |
100 | return snprintf(buf, len, | |
101 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
102 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
103 | } | |
104 | ||
75f8c1f6 NB |
105 | /* |
106 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
107 | */ | |
108 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
109 | { | |
d4f75b56 | 110 | unsigned int i, j; |
75f8c1f6 NB |
111 | u8 wwn[8]; |
112 | ||
113 | memset(wwn, 0, sizeof(wwn)); | |
114 | ||
115 | /* Validate and store the new name */ | |
116 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
117 | int value; |
118 | ||
75f8c1f6 NB |
119 | value = hex_to_bin(*ns++); |
120 | if (value >= 0) | |
121 | j = (j << 4) | value; | |
122 | else | |
123 | return -EINVAL; | |
124 | ||
125 | if (i % 2) { | |
126 | wwn[i/2] = j & 0xff; | |
127 | j = 0; | |
128 | } | |
129 | } | |
130 | ||
131 | *nm = wwn_to_u64(wwn); | |
132 | return 0; | |
133 | } | |
134 | ||
135 | /* | |
136 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
137 | * store_fc_host_vport_create() | |
138 | */ | |
139 | static int tcm_qla2xxx_npiv_parse_wwn( | |
140 | const char *name, | |
141 | size_t count, | |
142 | u64 *wwpn, | |
143 | u64 *wwnn) | |
144 | { | |
145 | unsigned int cnt = count; | |
146 | int rc; | |
147 | ||
148 | *wwpn = 0; | |
149 | *wwnn = 0; | |
150 | ||
151 | /* count may include a LF at end of string */ | |
0e8cd71c | 152 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
153 | cnt--; |
154 | ||
155 | /* validate we have enough characters for WWPN */ | |
156 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
157 | return -EINVAL; | |
158 | ||
159 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
160 | if (rc != 0) | |
161 | return rc; | |
162 | ||
163 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
164 | if (rc != 0) | |
165 | return rc; | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
75f8c1f6 NB |
170 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
171 | { | |
172 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
173 | struct tcm_qla2xxx_tpg, se_tpg); | |
174 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
175 | ||
c046aa0f | 176 | return lport->lport_naa_name; |
75f8c1f6 NB |
177 | } |
178 | ||
75f8c1f6 NB |
179 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
180 | { | |
181 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
182 | struct tcm_qla2xxx_tpg, se_tpg); | |
183 | return tpg->lport_tpgt; | |
184 | } | |
185 | ||
75f8c1f6 NB |
186 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
187 | { | |
188 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
189 | struct tcm_qla2xxx_tpg, se_tpg); | |
190 | ||
a309f489 | 191 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
192 | } |
193 | ||
194 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
195 | { | |
196 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
197 | struct tcm_qla2xxx_tpg, se_tpg); | |
198 | ||
a309f489 | 199 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
200 | } |
201 | ||
202 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
203 | { | |
204 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
205 | struct tcm_qla2xxx_tpg, se_tpg); | |
206 | ||
a309f489 | 207 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
208 | } |
209 | ||
210 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
211 | { | |
212 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
213 | struct tcm_qla2xxx_tpg, se_tpg); | |
214 | ||
a309f489 | 215 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
216 | } |
217 | ||
de04a8aa AG |
218 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
219 | { | |
220 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
221 | struct tcm_qla2xxx_tpg, se_tpg); | |
222 | ||
a309f489 | 223 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
224 | } |
225 | ||
64b16887 NB |
226 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
227 | { | |
228 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
229 | struct tcm_qla2xxx_tpg, se_tpg); | |
230 | ||
231 | return tpg->tpg_attrib.fabric_prot_type; | |
232 | } | |
233 | ||
75f8c1f6 NB |
234 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
235 | { | |
236 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
237 | struct tcm_qla2xxx_tpg, se_tpg); | |
238 | ||
239 | return tpg->lport_tpgt; | |
240 | } | |
241 | ||
242 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
243 | { | |
244 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
245 | struct qla_tgt_mgmt_cmd, free_work); | |
246 | ||
247 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
248 | } | |
249 | ||
250 | /* | |
251 | * Called from qla_target_template->free_mcmd(), and will call | |
252 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
253 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
254 | */ | |
255 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
256 | { | |
257 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
258 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
259 | } | |
260 | ||
261 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
262 | { | |
263 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
d594db01 QT |
264 | bool released = false; |
265 | unsigned long flags; | |
75f8c1f6 | 266 | |
e07f8f65 SK |
267 | cmd->cmd_in_wq = 0; |
268 | ||
1eb42f96 | 269 | WARN_ON(cmd->trc_flags & TRC_CMD_FREE); |
e07f8f65 | 270 | |
d594db01 | 271 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
60a9eadb | 272 | cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++; |
1eb42f96 | 273 | cmd->trc_flags |= TRC_CMD_FREE; |
d594db01 QT |
274 | cmd->cmd_sent_to_fw = 0; |
275 | if (cmd->released) | |
276 | released = true; | |
277 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
278 | ||
279 | if (released) | |
280 | qlt_free_cmd(cmd); | |
281 | else | |
282 | transport_generic_free_cmd(&cmd->se_cmd, 0); | |
75f8c1f6 NB |
283 | } |
284 | ||
285 | /* | |
286 | * Called from qla_target_template->free_cmd(), and will call | |
287 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
288 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
289 | */ | |
290 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
291 | { | |
60a9eadb | 292 | cmd->qpair->tgt_counters.core_qla_free_cmd++; |
e07f8f65 | 293 | cmd->cmd_in_wq = 1; |
a07100e0 | 294 | |
1eb42f96 QT |
295 | WARN_ON(cmd->trc_flags & TRC_CMD_DONE); |
296 | cmd->trc_flags |= TRC_CMD_DONE; | |
a07100e0 | 297 | |
75f8c1f6 | 298 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
fb3269ba | 299 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
300 | } |
301 | ||
302 | /* | |
303 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
304 | */ | |
305 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
306 | { | |
e07f8f65 SK |
307 | struct qla_tgt_cmd *cmd; |
308 | ||
309 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
310 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
1eb42f96 | 311 | cmd->trc_flags |= TRC_CMD_CHK_STOP; |
e07f8f65 SK |
312 | } |
313 | ||
afc16604 | 314 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
315 | } |
316 | ||
317 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
318 | * fabric descriptor @se_cmd command to release | |
319 | */ | |
320 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
321 | { | |
322 | struct qla_tgt_cmd *cmd; | |
d594db01 | 323 | unsigned long flags; |
75f8c1f6 NB |
324 | |
325 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
326 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
327 | struct qla_tgt_mgmt_cmd, se_cmd); | |
328 | qlt_free_mcmd(mcmd); | |
329 | return; | |
330 | } | |
75f8c1f6 | 331 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
d594db01 QT |
332 | |
333 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
334 | if (cmd->cmd_sent_to_fw) { | |
335 | cmd->released = 1; | |
336 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
337 | } else { | |
338 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
339 | qlt_free_cmd(cmd); | |
340 | } | |
75f8c1f6 NB |
341 | } |
342 | ||
5d964837 QT |
343 | static void tcm_qla2xxx_release_session(struct kref *kref) |
344 | { | |
345 | struct fc_port *sess = container_of(kref, | |
346 | struct fc_port, sess_kref); | |
347 | ||
348 | qlt_unreg_sess(sess); | |
349 | } | |
350 | ||
351 | static void tcm_qla2xxx_put_sess(struct fc_port *sess) | |
352 | { | |
353 | if (!sess) | |
354 | return; | |
355 | ||
356 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); | |
357 | kref_put(&sess->sess_kref, tcm_qla2xxx_release_session); | |
358 | } | |
359 | ||
75f8c1f6 NB |
360 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
361 | { | |
5d964837 | 362 | struct fc_port *sess = se_sess->fabric_sess_ptr; |
75f8c1f6 NB |
363 | struct scsi_qla_host *vha; |
364 | unsigned long flags; | |
365 | ||
366 | BUG_ON(!sess); | |
367 | vha = sess->vha; | |
368 | ||
7560151b | 369 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
e3dc0e31 | 370 | target_sess_cmd_list_set_waiting(se_sess); |
5d964837 | 371 | tcm_qla2xxx_put_sess(sess); |
7560151b | 372 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
75f8c1f6 NB |
373 | } |
374 | ||
375 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
376 | { | |
377 | return 0; | |
378 | } | |
379 | ||
75f8c1f6 NB |
380 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
381 | { | |
382 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
383 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
384 | |
385 | if (cmd->aborted) { | |
386 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
387 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
388 | * already kick start the free. | |
389 | */ | |
390 | pr_debug("write_pending aborted cmd[%p] refcount %d " | |
391 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 392 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
393 | cmd->se_cmd.transport_state, |
394 | cmd->se_cmd.t_state, | |
395 | cmd->se_cmd.se_cmd_flags); | |
e209783d BVA |
396 | transport_generic_request_failure(&cmd->se_cmd, |
397 | TCM_CHECK_CONDITION_ABORT_CMD); | |
a07100e0 QT |
398 | return 0; |
399 | } | |
1eb42f96 | 400 | cmd->trc_flags |= TRC_XFR_RDY; |
75f8c1f6 | 401 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 402 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
403 | |
404 | cmd->sg_cnt = se_cmd->t_data_nents; | |
405 | cmd->sg = se_cmd->t_data_sg; | |
406 | ||
f83adb61 QT |
407 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
408 | cmd->prot_sg = se_cmd->t_prot_sg; | |
409 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
410 | se_cmd->pi_err = 0; | |
411 | ||
75f8c1f6 | 412 | /* |
e7d0bb77 | 413 | * qla_target.c:qlt_rdy_to_xfer() will call dma_map_sg() to setup |
75f8c1f6 NB |
414 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. |
415 | */ | |
416 | return qlt_rdy_to_xfer(cmd); | |
417 | } | |
418 | ||
75f8c1f6 NB |
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; | |
5d964837 | 444 | struct fc_port *sess; |
54a5e73f LO |
445 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
446 | struct se_portal_group *se_tpg; | |
447 | struct tcm_qla2xxx_tpg *tpg; | |
448 | #endif | |
75f8c1f6 NB |
449 | int flags = TARGET_SCF_ACK_KREF; |
450 | ||
451 | if (bidi) | |
452 | flags |= TARGET_SCF_BIDI_OP; | |
453 | ||
5327c7db QT |
454 | if (se_cmd->cpuid != WORK_CPU_UNBOUND) |
455 | flags |= TARGET_SCF_USE_CPUID; | |
456 | ||
75f8c1f6 NB |
457 | sess = cmd->sess; |
458 | if (!sess) { | |
5d964837 | 459 | pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n"); |
75f8c1f6 NB |
460 | return -EINVAL; |
461 | } | |
462 | ||
463 | se_sess = sess->se_sess; | |
464 | if (!se_sess) { | |
465 | pr_err("Unable to locate active struct se_session\n"); | |
466 | return -EINVAL; | |
467 | } | |
468 | ||
54a5e73f LO |
469 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
470 | se_tpg = se_sess->se_tpg; | |
471 | tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); | |
472 | if (unlikely(tpg->tpg_attrib.jam_host)) { | |
473 | /* return, and dont run target_submit_cmd,discarding command */ | |
474 | return 0; | |
475 | } | |
476 | #endif | |
477 | ||
60a9eadb | 478 | cmd->qpair->tgt_counters.qla_core_sbt_cmd++; |
d6dfc868 | 479 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
480 | cmd->unpacked_lun, data_length, fcp_task_attr, |
481 | data_dir, flags); | |
75f8c1f6 NB |
482 | } |
483 | ||
43381ce8 | 484 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
485 | { |
486 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
d594db01 | 487 | unsigned long flags; |
75f8c1f6 | 488 | |
75f8c1f6 NB |
489 | /* |
490 | * Ensure that the complete FCP WRITE payload has been received. | |
491 | * Otherwise return an exception via CHECK_CONDITION status. | |
492 | */ | |
e07f8f65 | 493 | cmd->cmd_in_wq = 0; |
a07100e0 | 494 | |
d594db01 QT |
495 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
496 | cmd->cmd_sent_to_fw = 0; | |
497 | ||
498 | if (cmd->released) { | |
499 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
500 | qlt_free_cmd(cmd); | |
501 | return; | |
502 | } | |
503 | ||
d594db01 | 504 | if (cmd->aborted) { |
d594db01 QT |
505 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
506 | ||
507 | tcm_qla2xxx_free_cmd(cmd); | |
508 | return; | |
509 | } | |
510 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
511 | ||
60a9eadb | 512 | cmd->qpair->tgt_counters.qla_core_ret_ctio++; |
75f8c1f6 | 513 | if (!cmd->write_data_transferred) { |
be25152c QT |
514 | switch (cmd->dif_err_code) { |
515 | case DIF_ERR_GRD: | |
516 | cmd->se_cmd.pi_err = | |
517 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; | |
518 | break; | |
519 | case DIF_ERR_REF: | |
520 | cmd->se_cmd.pi_err = | |
521 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; | |
522 | break; | |
523 | case DIF_ERR_APP: | |
524 | cmd->se_cmd.pi_err = | |
525 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; | |
526 | break; | |
527 | case DIF_ERR_NONE: | |
528 | default: | |
529 | break; | |
530 | } | |
531 | ||
f83adb61 QT |
532 | if (cmd->se_cmd.pi_err) |
533 | transport_generic_request_failure(&cmd->se_cmd, | |
534 | cmd->se_cmd.pi_err); | |
535 | else | |
536 | transport_generic_request_failure(&cmd->se_cmd, | |
537 | TCM_CHECK_CONDITION_ABORT_CMD); | |
538 | ||
43381ce8 | 539 | return; |
75f8c1f6 | 540 | } |
43381ce8 CH |
541 | |
542 | return target_execute_cmd(&cmd->se_cmd); | |
543 | } | |
544 | ||
545 | /* | |
546 | * Called from qla_target.c:qlt_do_ctio_completion() | |
547 | */ | |
548 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
549 | { | |
1eb42f96 | 550 | cmd->trc_flags |= TRC_DATA_IN; |
e07f8f65 | 551 | cmd->cmd_in_wq = 1; |
43381ce8 | 552 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
fb3269ba | 553 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
554 | } |
555 | ||
be25152c | 556 | static int tcm_qla2xxx_chk_dif_tags(uint32_t tag) |
f83adb61 | 557 | { |
be25152c | 558 | return 0; |
f83adb61 QT |
559 | } |
560 | ||
be25152c QT |
561 | static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd, |
562 | uint16_t *pfw_prot_opts) | |
f83adb61 | 563 | { |
be25152c QT |
564 | struct se_cmd *se_cmd = &cmd->se_cmd; |
565 | ||
566 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD)) | |
567 | *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK; | |
568 | ||
569 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG)) | |
570 | *pfw_prot_opts |= PO_DIS_APP_TAG_VALD; | |
571 | ||
572 | return 0; | |
f83adb61 QT |
573 | } |
574 | ||
75f8c1f6 NB |
575 | /* |
576 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
577 | */ | |
f775bd14 | 578 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun, |
be92fc3f | 579 | uint16_t tmr_func, uint32_t tag) |
75f8c1f6 | 580 | { |
5d964837 | 581 | struct fc_port *sess = mcmd->sess; |
75f8c1f6 | 582 | struct se_cmd *se_cmd = &mcmd->se_cmd; |
be92fc3f | 583 | int transl_tmr_func = 0; |
eb5ae233 | 584 | int flags = TARGET_SCF_ACK_KREF; |
be92fc3f QT |
585 | |
586 | switch (tmr_func) { | |
587 | case QLA_TGT_ABTS: | |
588 | pr_debug("%ld: ABTS received\n", sess->vha->host_no); | |
589 | transl_tmr_func = TMR_ABORT_TASK; | |
eb5ae233 | 590 | flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG; |
be92fc3f QT |
591 | break; |
592 | case QLA_TGT_2G_ABORT_TASK: | |
593 | pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no); | |
594 | transl_tmr_func = TMR_ABORT_TASK; | |
595 | break; | |
596 | case QLA_TGT_CLEAR_ACA: | |
597 | pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no); | |
598 | transl_tmr_func = TMR_CLEAR_ACA; | |
599 | break; | |
600 | case QLA_TGT_TARGET_RESET: | |
601 | pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no); | |
602 | transl_tmr_func = TMR_TARGET_WARM_RESET; | |
603 | break; | |
604 | case QLA_TGT_LUN_RESET: | |
605 | pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no); | |
606 | transl_tmr_func = TMR_LUN_RESET; | |
607 | break; | |
608 | case QLA_TGT_CLEAR_TS: | |
609 | pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no); | |
610 | transl_tmr_func = TMR_CLEAR_TASK_SET; | |
611 | break; | |
612 | case QLA_TGT_ABORT_TS: | |
613 | pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no); | |
614 | transl_tmr_func = TMR_ABORT_TASK_SET; | |
615 | break; | |
616 | default: | |
617 | pr_debug("%ld: Unknown task mgmt fn 0x%x\n", | |
618 | sess->vha->host_no, tmr_func); | |
619 | return -ENOSYS; | |
620 | } | |
75f8c1f6 NB |
621 | |
622 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
eb5ae233 | 623 | transl_tmr_func, GFP_ATOMIC, tag, flags); |
75f8c1f6 NB |
624 | } |
625 | ||
84905dfe QT |
626 | static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess, |
627 | uint64_t tag) | |
628 | { | |
629 | struct qla_tgt_cmd *cmd = NULL; | |
630 | struct se_cmd *secmd; | |
631 | unsigned long flags; | |
632 | ||
633 | if (!sess->se_sess) | |
634 | return NULL; | |
635 | ||
636 | spin_lock_irqsave(&sess->se_sess->sess_cmd_lock, flags); | |
637 | list_for_each_entry(secmd, &sess->se_sess->sess_cmd_list, se_cmd_list) { | |
638 | /* skip task management functions, including tmr->task_cmd */ | |
639 | if (secmd->se_cmd_flags & SCF_SCSI_TMR_CDB) | |
640 | continue; | |
641 | ||
642 | if (secmd->tag == tag) { | |
643 | cmd = container_of(secmd, struct qla_tgt_cmd, se_cmd); | |
644 | break; | |
645 | } | |
646 | } | |
647 | spin_unlock_irqrestore(&sess->se_sess->sess_cmd_lock, flags); | |
648 | ||
649 | return cmd; | |
650 | } | |
651 | ||
75f8c1f6 NB |
652 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) |
653 | { | |
654 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
655 | struct qla_tgt_cmd, se_cmd); | |
656 | ||
a07100e0 QT |
657 | if (cmd->aborted) { |
658 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
659 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
660 | * already kick start the free. | |
661 | */ | |
662 | pr_debug("queue_data_in aborted cmd[%p] refcount %d " | |
663 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 664 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
665 | cmd->se_cmd.transport_state, |
666 | cmd->se_cmd.t_state, | |
667 | cmd->se_cmd.se_cmd_flags); | |
668 | return 0; | |
669 | } | |
670 | ||
1eb42f96 | 671 | cmd->trc_flags |= TRC_XMIT_DATA; |
75f8c1f6 | 672 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 673 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
674 | |
675 | cmd->sg_cnt = se_cmd->t_data_nents; | |
676 | cmd->sg = se_cmd->t_data_sg; | |
677 | cmd->offset = 0; | |
678 | ||
f83adb61 QT |
679 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
680 | cmd->prot_sg = se_cmd->t_prot_sg; | |
681 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
682 | se_cmd->pi_err = 0; | |
683 | ||
75f8c1f6 NB |
684 | /* |
685 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
686 | */ | |
687 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
688 | se_cmd->scsi_status); | |
689 | } | |
690 | ||
691 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
692 | { | |
693 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
694 | struct qla_tgt_cmd, se_cmd); | |
695 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
696 | ||
694833ee QT |
697 | if (cmd->aborted) { |
698 | /* | |
699 | * Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
700 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
701 | * already kick start the free. | |
702 | */ | |
703 | pr_debug( | |
704 | "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n", | |
705 | cmd, kref_read(&cmd->se_cmd.cmd_kref), | |
706 | cmd->se_cmd.transport_state, cmd->se_cmd.t_state, | |
707 | cmd->se_cmd.se_cmd_flags); | |
708 | return 0; | |
709 | } | |
75f8c1f6 NB |
710 | cmd->bufflen = se_cmd->data_length; |
711 | cmd->sg = NULL; | |
712 | cmd->sg_cnt = 0; | |
713 | cmd->offset = 0; | |
b3faa2e8 | 714 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
1eb42f96 | 715 | cmd->trc_flags |= TRC_XMIT_STATUS; |
75f8c1f6 NB |
716 | |
717 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
718 | /* | |
719 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
720 | * for qla_tgt_xmit_response LLD code | |
721 | */ | |
b5aff3d2 RD |
722 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
723 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
724 | se_cmd->residual_count = 0; | |
725 | } | |
75f8c1f6 | 726 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 727 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
728 | |
729 | cmd->bufflen = 0; | |
730 | } | |
731 | /* | |
732 | * Now queue status response to qla2xxx LLD code and response ring | |
733 | */ | |
734 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
735 | } | |
736 | ||
b79fafac | 737 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
738 | { |
739 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
740 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
741 | struct qla_tgt_mgmt_cmd, se_cmd); | |
742 | ||
743 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
744 | mcmd, se_tmr->function, se_tmr->response); | |
745 | /* | |
746 | * Do translation between TCM TM response codes and | |
747 | * QLA2xxx FC TM response codes. | |
748 | */ | |
749 | switch (se_tmr->response) { | |
750 | case TMR_FUNCTION_COMPLETE: | |
751 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
752 | break; | |
753 | case TMR_TASK_DOES_NOT_EXIST: | |
754 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
755 | break; | |
756 | case TMR_FUNCTION_REJECTED: | |
757 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
758 | break; | |
759 | case TMR_LUN_DOES_NOT_EXIST: | |
760 | default: | |
761 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
762 | break; | |
763 | } | |
764 | /* | |
765 | * Queue the TM response to QLA2xxx LLD to build a | |
766 | * CTIO response packet. | |
767 | */ | |
768 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
769 | } |
770 | ||
131e6abc NB |
771 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
772 | { | |
773 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
774 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
775 | |
776 | if (qlt_abort_cmd(cmd)) | |
777 | return; | |
131e6abc NB |
778 | } |
779 | ||
f2d5d9b9 | 780 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
5d964837 | 781 | struct tcm_qla2xxx_nacl *, struct fc_port *); |
75f8c1f6 | 782 | /* |
7560151b | 783 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 784 | */ |
5d964837 | 785 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess) |
75f8c1f6 NB |
786 | { |
787 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
788 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
789 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
790 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
791 | struct tcm_qla2xxx_lport, lport_wwn); | |
792 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
793 | struct tcm_qla2xxx_nacl, se_node_acl); | |
794 | void *node; | |
795 | ||
796 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
797 | ||
798 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
799 | if (WARN_ON(node && (node != se_nacl))) { |
800 | /* | |
801 | * The nacl no longer matches what we think it should be. | |
802 | * Most likely a new dynamic acl has been added while | |
803 | * someone dropped the hardware lock. It clearly is a | |
804 | * bug elsewhere, but this bit can't make things worse. | |
805 | */ | |
806 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
807 | node, GFP_ATOMIC); | |
808 | } | |
75f8c1f6 NB |
809 | |
810 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
811 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
812 | /* |
813 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
814 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
815 | * | |
816 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
817 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
818 | * I/O to complete, to avoid a race between session shutdown execution | |
819 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
820 | */ | |
821 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
822 | } |
823 | ||
5d964837 | 824 | static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess) |
75f8c1f6 | 825 | { |
7560151b | 826 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); |
08234e3a | 827 | target_sess_cmd_list_set_waiting(sess->se_sess); |
75f8c1f6 NB |
828 | } |
829 | ||
c7d6a803 CH |
830 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
831 | const char *name) | |
75f8c1f6 | 832 | { |
c7d6a803 CH |
833 | struct tcm_qla2xxx_nacl *nacl = |
834 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 835 | u64 wwnn; |
75f8c1f6 NB |
836 | |
837 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 838 | return -EINVAL; |
75f8c1f6 | 839 | |
75f8c1f6 NB |
840 | nacl->nport_wwnn = wwnn; |
841 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 842 | |
c7d6a803 | 843 | return 0; |
75f8c1f6 NB |
844 | } |
845 | ||
846 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
847 | ||
848 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
849 | \ | |
2eafd729 CH |
850 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ |
851 | struct config_item *item, char *page) \ | |
75f8c1f6 | 852 | { \ |
2eafd729 | 853 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
854 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
855 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
856 | \ | |
a309f489 | 857 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
858 | } \ |
859 | \ | |
2eafd729 CH |
860 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ |
861 | struct config_item *item, const char *page, size_t count) \ | |
75f8c1f6 | 862 | { \ |
2eafd729 | 863 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
864 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
865 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
2eafd729 | 866 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
75f8c1f6 NB |
867 | unsigned long val; \ |
868 | int ret; \ | |
869 | \ | |
870 | ret = kstrtoul(page, 0, &val); \ | |
871 | if (ret < 0) { \ | |
872 | pr_err("kstrtoul() failed with" \ | |
873 | " ret: %d\n", ret); \ | |
874 | return -EINVAL; \ | |
875 | } \ | |
75f8c1f6 NB |
876 | \ |
877 | if ((val != 0) && (val != 1)) { \ | |
878 | pr_err("Illegal boolean value %lu\n", val); \ | |
879 | return -EINVAL; \ | |
880 | } \ | |
881 | \ | |
2eafd729 CH |
882 | a->name = val; \ |
883 | \ | |
884 | return count; \ | |
885 | } \ | |
886 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) | |
75f8c1f6 | 887 | |
75f8c1f6 | 888 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
75f8c1f6 | 889 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
75f8c1f6 | 890 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
75f8c1f6 | 891 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
de04a8aa | 892 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
54a5e73f LO |
893 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
894 | DEF_QLA_TPG_ATTRIB(jam_host); | |
895 | #endif | |
de04a8aa | 896 | |
75f8c1f6 | 897 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
2eafd729 CH |
898 | &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, |
899 | &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, | |
900 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, | |
901 | &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, | |
902 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, | |
54a5e73f LO |
903 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
904 | &tcm_qla2xxx_tpg_attrib_attr_jam_host, | |
905 | #endif | |
75f8c1f6 NB |
906 | NULL, |
907 | }; | |
908 | ||
909 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
910 | ||
2eafd729 CH |
911 | static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, |
912 | char *page) | |
75f8c1f6 | 913 | { |
2eafd729 | 914 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
915 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
916 | struct tcm_qla2xxx_tpg, se_tpg); | |
917 | ||
918 | return snprintf(page, PAGE_SIZE, "%d\n", | |
919 | atomic_read(&tpg->lport_tpg_enabled)); | |
920 | } | |
921 | ||
2eafd729 CH |
922 | static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, |
923 | const char *page, size_t count) | |
75f8c1f6 | 924 | { |
2eafd729 | 925 | struct se_portal_group *se_tpg = to_tpg(item); |
17b18eaa AG |
926 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
927 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
928 | struct tcm_qla2xxx_lport, lport_wwn); | |
929 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
930 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
931 | struct tcm_qla2xxx_tpg, se_tpg); | |
932 | unsigned long op; | |
933 | int rc; | |
934 | ||
935 | rc = kstrtoul(page, 0, &op); | |
936 | if (rc < 0) { | |
937 | pr_err("kstrtoul() returned %d\n", rc); | |
938 | return -EINVAL; | |
939 | } | |
940 | if ((op != 1) && (op != 0)) { | |
941 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
942 | return -EINVAL; | |
943 | } | |
75f8c1f6 | 944 | if (op) { |
7474f52a NB |
945 | if (atomic_read(&tpg->lport_tpg_enabled)) |
946 | return -EEXIST; | |
947 | ||
17b18eaa AG |
948 | atomic_set(&tpg->lport_tpg_enabled, 1); |
949 | qlt_enable_vha(vha); | |
75f8c1f6 | 950 | } else { |
7474f52a NB |
951 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
952 | return count; | |
953 | ||
17b18eaa AG |
954 | atomic_set(&tpg->lport_tpg_enabled, 0); |
955 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
956 | } |
957 | ||
958 | return count; | |
959 | } | |
960 | ||
2eafd729 CH |
961 | static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, |
962 | char *page) | |
d23dbaaa | 963 | { |
2eafd729 | 964 | return target_show_dynamic_sessions(to_tpg(item), page); |
d23dbaaa NB |
965 | } |
966 | ||
2eafd729 CH |
967 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, |
968 | const char *page, size_t count) | |
64b16887 | 969 | { |
2eafd729 | 970 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
971 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
972 | struct tcm_qla2xxx_tpg, se_tpg); | |
973 | unsigned long val; | |
974 | int ret = kstrtoul(page, 0, &val); | |
975 | ||
976 | if (ret) { | |
977 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
978 | return ret; | |
979 | } | |
980 | if (val != 0 && val != 1 && val != 3) { | |
981 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
982 | return -EINVAL; | |
983 | } | |
984 | tpg->tpg_attrib.fabric_prot_type = val; | |
985 | ||
986 | return count; | |
987 | } | |
988 | ||
2eafd729 CH |
989 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, |
990 | char *page) | |
64b16887 | 991 | { |
2eafd729 | 992 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
993 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
994 | struct tcm_qla2xxx_tpg, se_tpg); | |
995 | ||
996 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
997 | } | |
2eafd729 | 998 | |
3786dc45 | 999 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable); |
2eafd729 CH |
1000 | CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); |
1001 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); | |
64b16887 | 1002 | |
75f8c1f6 | 1003 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
2eafd729 CH |
1004 | &tcm_qla2xxx_tpg_attr_enable, |
1005 | &tcm_qla2xxx_tpg_attr_dynamic_sessions, | |
1006 | &tcm_qla2xxx_tpg_attr_fabric_prot_type, | |
75f8c1f6 NB |
1007 | NULL, |
1008 | }; | |
1009 | ||
aa090eab BVA |
1010 | static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn, |
1011 | const char *name) | |
75f8c1f6 NB |
1012 | { |
1013 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1014 | struct tcm_qla2xxx_lport, lport_wwn); | |
1015 | struct tcm_qla2xxx_tpg *tpg; | |
1016 | unsigned long tpgt; | |
1017 | int ret; | |
1018 | ||
1019 | if (strstr(name, "tpgt_") != name) | |
1020 | return ERR_PTR(-EINVAL); | |
1021 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1022 | return ERR_PTR(-EINVAL); | |
1023 | ||
0e8cd71c | 1024 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1025 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1026 | return ERR_PTR(-ENOSYS); | |
1027 | } | |
1028 | ||
1029 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1030 | if (!tpg) { | |
1031 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1032 | return ERR_PTR(-ENOMEM); | |
1033 | } | |
1034 | tpg->lport = lport; | |
1035 | tpg->lport_tpgt = tpgt; | |
1036 | /* | |
1037 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1038 | * NodeACLs | |
1039 | */ | |
a309f489 AG |
1040 | tpg->tpg_attrib.generate_node_acls = 1; |
1041 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1042 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1043 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
54a5e73f | 1044 | tpg->tpg_attrib.jam_host = 0; |
75f8c1f6 | 1045 | |
bc0c94b1 | 1046 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1047 | if (ret < 0) { |
1048 | kfree(tpg); | |
1049 | return NULL; | |
1050 | } | |
0e8cd71c SK |
1051 | |
1052 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1053 | |
1054 | return &tpg->se_tpg; | |
1055 | } | |
1056 | ||
1057 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1058 | { | |
1059 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1060 | struct tcm_qla2xxx_tpg, se_tpg); | |
1061 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1062 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1063 | /* |
1064 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1065 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1066 | */ | |
0e8cd71c SK |
1067 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1068 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1069 | |
1070 | core_tpg_deregister(se_tpg); | |
1071 | /* | |
1072 | * Clear local TPG=1 pointer for non NPIV mode. | |
1073 | */ | |
394d62ba | 1074 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1075 | kfree(tpg); |
1076 | } | |
1077 | ||
2eafd729 CH |
1078 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, |
1079 | char *page) | |
394d62ba | 1080 | { |
2eafd729 | 1081 | return tcm_qla2xxx_tpg_enable_show(item, page); |
394d62ba NB |
1082 | } |
1083 | ||
2eafd729 CH |
1084 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, |
1085 | const char *page, size_t count) | |
394d62ba | 1086 | { |
2eafd729 | 1087 | struct se_portal_group *se_tpg = to_tpg(item); |
394d62ba NB |
1088 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
1089 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1090 | struct tcm_qla2xxx_lport, lport_wwn); | |
1091 | struct scsi_qla_host *vha = lport->qla_vha; | |
1092 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1093 | struct tcm_qla2xxx_tpg, se_tpg); | |
1094 | unsigned long op; | |
1095 | int rc; | |
1096 | ||
1097 | rc = kstrtoul(page, 0, &op); | |
1098 | if (rc < 0) { | |
1099 | pr_err("kstrtoul() returned %d\n", rc); | |
1100 | return -EINVAL; | |
1101 | } | |
1102 | if ((op != 1) && (op != 0)) { | |
1103 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1104 | return -EINVAL; | |
1105 | } | |
1106 | if (op) { | |
1107 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1108 | return -EEXIST; | |
1109 | ||
1110 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1111 | qlt_enable_vha(vha); | |
1112 | } else { | |
1113 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1114 | return count; | |
1115 | ||
1116 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1117 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1118 | } | |
1119 | ||
1120 | return count; | |
1121 | } | |
1122 | ||
2eafd729 | 1123 | CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); |
394d62ba NB |
1124 | |
1125 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
2eafd729 | 1126 | &tcm_qla2xxx_npiv_tpg_attr_enable, |
394d62ba NB |
1127 | NULL, |
1128 | }; | |
1129 | ||
aa090eab BVA |
1130 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn, |
1131 | const char *name) | |
75f8c1f6 NB |
1132 | { |
1133 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1134 | struct tcm_qla2xxx_lport, lport_wwn); | |
1135 | struct tcm_qla2xxx_tpg *tpg; | |
1136 | unsigned long tpgt; | |
1137 | int ret; | |
1138 | ||
1139 | if (strstr(name, "tpgt_") != name) | |
1140 | return ERR_PTR(-EINVAL); | |
1141 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1142 | return ERR_PTR(-EINVAL); | |
1143 | ||
1144 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1145 | if (!tpg) { | |
1146 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1147 | return ERR_PTR(-ENOMEM); | |
1148 | } | |
1149 | tpg->lport = lport; | |
1150 | tpg->lport_tpgt = tpgt; | |
1151 | ||
0e8cd71c SK |
1152 | /* |
1153 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1154 | * NodeACLs | |
1155 | */ | |
1156 | tpg->tpg_attrib.generate_node_acls = 1; | |
1157 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1158 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1159 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1160 | ||
bc0c94b1 | 1161 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1162 | if (ret < 0) { |
1163 | kfree(tpg); | |
1164 | return NULL; | |
1165 | } | |
0e8cd71c | 1166 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1167 | return &tpg->se_tpg; |
1168 | } | |
1169 | ||
1170 | /* | |
7560151b | 1171 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1172 | */ |
5d964837 | 1173 | static struct fc_port *tcm_qla2xxx_find_sess_by_s_id( |
75f8c1f6 NB |
1174 | scsi_qla_host_t *vha, |
1175 | const uint8_t *s_id) | |
1176 | { | |
75f8c1f6 NB |
1177 | struct tcm_qla2xxx_lport *lport; |
1178 | struct se_node_acl *se_nacl; | |
1179 | struct tcm_qla2xxx_nacl *nacl; | |
1180 | u32 key; | |
1181 | ||
0e8cd71c | 1182 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1183 | if (!lport) { |
1184 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1185 | dump_stack(); | |
1186 | return NULL; | |
1187 | } | |
1188 | ||
8b2f5ff3 | 1189 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1190 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
1191 | ||
1192 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1193 | if (!se_nacl) { | |
1194 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1195 | return NULL; | |
1196 | } | |
1197 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1198 | se_nacl, se_nacl->initiatorname); | |
1199 | ||
1200 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 QT |
1201 | if (!nacl->fc_port) { |
1202 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1203 | return NULL; |
1204 | } | |
1205 | ||
5d964837 | 1206 | return nacl->fc_port; |
75f8c1f6 NB |
1207 | } |
1208 | ||
1209 | /* | |
7560151b | 1210 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1211 | */ |
1212 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1213 | struct tcm_qla2xxx_lport *lport, | |
1214 | struct se_node_acl *new_se_nacl, | |
1215 | struct tcm_qla2xxx_nacl *nacl, | |
1216 | struct se_session *se_sess, | |
5d964837 | 1217 | struct fc_port *fc_port, |
75f8c1f6 NB |
1218 | uint8_t *s_id) |
1219 | { | |
1220 | u32 key; | |
1221 | void *slot; | |
1222 | int rc; | |
1223 | ||
8b2f5ff3 | 1224 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1225 | pr_debug("set_sess_by_s_id: %06x\n", key); |
1226 | ||
1227 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1228 | if (!slot) { | |
1229 | if (new_se_nacl) { | |
1230 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1231 | nacl->nport_id = key; | |
1232 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1233 | new_se_nacl, GFP_ATOMIC); | |
1234 | if (rc) | |
1235 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1236 | (int)key); | |
1237 | } else { | |
1238 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1239 | } | |
1240 | ||
5d964837 QT |
1241 | fc_port->se_sess = se_sess; |
1242 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1243 | return; |
1244 | } | |
1245 | ||
5d964837 | 1246 | if (nacl->fc_port) { |
75f8c1f6 | 1247 | if (new_se_nacl == NULL) { |
5d964837 | 1248 | pr_debug("Clearing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1249 | btree_remove32(&lport->lport_fcport_map, key); |
5d964837 | 1250 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1251 | return; |
1252 | } | |
5d964837 | 1253 | pr_debug("Replacing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1254 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1255 | fc_port->se_sess = se_sess; |
1256 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1257 | return; |
1258 | } | |
1259 | ||
1260 | if (new_se_nacl == NULL) { | |
1261 | pr_debug("Clearing existing fc_port entry\n"); | |
1262 | btree_remove32(&lport->lport_fcport_map, key); | |
1263 | return; | |
1264 | } | |
1265 | ||
5d964837 | 1266 | pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n"); |
75f8c1f6 | 1267 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1268 | fc_port->se_sess = se_sess; |
1269 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1270 | |
5d964837 QT |
1271 | pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n", |
1272 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1273 | } |
1274 | ||
1275 | /* | |
7560151b | 1276 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1277 | */ |
5d964837 | 1278 | static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id( |
75f8c1f6 NB |
1279 | scsi_qla_host_t *vha, |
1280 | const uint16_t loop_id) | |
1281 | { | |
75f8c1f6 NB |
1282 | struct tcm_qla2xxx_lport *lport; |
1283 | struct se_node_acl *se_nacl; | |
1284 | struct tcm_qla2xxx_nacl *nacl; | |
1285 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1286 | ||
0e8cd71c | 1287 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1288 | if (!lport) { |
1289 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1290 | dump_stack(); | |
1291 | return NULL; | |
1292 | } | |
1293 | ||
1294 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1295 | ||
1296 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1297 | se_nacl = fc_loopid->se_nacl; | |
1298 | if (!se_nacl) { | |
1299 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1300 | loop_id); | |
1301 | return NULL; | |
1302 | } | |
1303 | ||
1304 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1305 | ||
5d964837 QT |
1306 | if (!nacl->fc_port) { |
1307 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1308 | return NULL; |
1309 | } | |
1310 | ||
5d964837 | 1311 | return nacl->fc_port; |
75f8c1f6 NB |
1312 | } |
1313 | ||
1314 | /* | |
7560151b | 1315 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1316 | */ |
1317 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1318 | struct tcm_qla2xxx_lport *lport, | |
1319 | struct se_node_acl *new_se_nacl, | |
1320 | struct tcm_qla2xxx_nacl *nacl, | |
1321 | struct se_session *se_sess, | |
5d964837 | 1322 | struct fc_port *fc_port, |
75f8c1f6 NB |
1323 | uint16_t loop_id) |
1324 | { | |
1325 | struct se_node_acl *saved_nacl; | |
1326 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1327 | ||
1328 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1329 | ||
1330 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1331 | lport->lport_loopid_map)[loop_id]; | |
1332 | ||
1333 | saved_nacl = fc_loopid->se_nacl; | |
1334 | if (!saved_nacl) { | |
1335 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1336 | fc_loopid->se_nacl = new_se_nacl; | |
5d964837 QT |
1337 | if (fc_port->se_sess != se_sess) |
1338 | fc_port->se_sess = se_sess; | |
1339 | if (nacl->fc_port != fc_port) | |
1340 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1341 | return; |
1342 | } | |
1343 | ||
5d964837 | 1344 | if (nacl->fc_port) { |
75f8c1f6 | 1345 | if (new_se_nacl == NULL) { |
5d964837 | 1346 | pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1347 | fc_loopid->se_nacl = NULL; |
5d964837 | 1348 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1349 | return; |
1350 | } | |
1351 | ||
5d964837 | 1352 | pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1353 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1354 | if (fc_port->se_sess != se_sess) |
1355 | fc_port->se_sess = se_sess; | |
1356 | if (nacl->fc_port != fc_port) | |
1357 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1358 | return; |
1359 | } | |
1360 | ||
1361 | if (new_se_nacl == NULL) { | |
1362 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1363 | fc_loopid->se_nacl = NULL; | |
1364 | return; | |
1365 | } | |
1366 | ||
5d964837 | 1367 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n"); |
75f8c1f6 | 1368 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1369 | if (fc_port->se_sess != se_sess) |
1370 | fc_port->se_sess = se_sess; | |
1371 | if (nacl->fc_port != fc_port) | |
1372 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1373 | |
5d964837 QT |
1374 | pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n", |
1375 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1376 | } |
1377 | ||
f2d5d9b9 | 1378 | /* |
7560151b | 1379 | * Should always be called with qla_hw_data->tgt.sess_lock held. |
f2d5d9b9 NB |
1380 | */ |
1381 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
5d964837 | 1382 | struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess) |
f2d5d9b9 NB |
1383 | { |
1384 | struct se_session *se_sess = sess->se_sess; | |
1385 | unsigned char be_sid[3]; | |
1386 | ||
37cacc0a QT |
1387 | be_sid[0] = sess->d_id.b.domain; |
1388 | be_sid[1] = sess->d_id.b.area; | |
1389 | be_sid[2] = sess->d_id.b.al_pa; | |
f2d5d9b9 NB |
1390 | |
1391 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1392 | sess, be_sid); | |
1393 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1394 | sess, sess->loop_id); | |
1395 | } | |
1396 | ||
5d964837 | 1397 | static void tcm_qla2xxx_free_session(struct fc_port *sess) |
75f8c1f6 NB |
1398 | { |
1399 | struct qla_tgt *tgt = sess->tgt; | |
1400 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1401 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 | 1402 | struct se_session *se_sess; |
75f8c1f6 | 1403 | struct tcm_qla2xxx_lport *lport; |
75f8c1f6 NB |
1404 | |
1405 | BUG_ON(in_interrupt()); | |
1406 | ||
1407 | se_sess = sess->se_sess; | |
1408 | if (!se_sess) { | |
5d964837 | 1409 | pr_err("struct fc_port->se_sess is NULL\n"); |
75f8c1f6 NB |
1410 | dump_stack(); |
1411 | return; | |
1412 | } | |
75f8c1f6 | 1413 | |
0e8cd71c | 1414 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1415 | if (!lport) { |
1416 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1417 | dump_stack(); | |
1418 | return; | |
1419 | } | |
be646c2d | 1420 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 | 1421 | |
b287e351 | 1422 | target_remove_session(se_sess); |
75f8c1f6 NB |
1423 | } |
1424 | ||
1b655b19 NB |
1425 | static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg, |
1426 | struct se_session *se_sess, void *p) | |
1427 | { | |
1428 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1429 | struct tcm_qla2xxx_tpg, se_tpg); | |
1430 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1431 | struct qla_hw_data *ha = lport->qla_vha->hw; | |
1432 | struct se_node_acl *se_nacl = se_sess->se_node_acl; | |
1433 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1434 | struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 | 1435 | struct fc_port *qlat_sess = p; |
1b655b19 NB |
1436 | uint16_t loop_id = qlat_sess->loop_id; |
1437 | unsigned long flags; | |
1438 | unsigned char be_sid[3]; | |
1439 | ||
37cacc0a QT |
1440 | be_sid[0] = qlat_sess->d_id.b.domain; |
1441 | be_sid[1] = qlat_sess->d_id.b.area; | |
1442 | be_sid[2] = qlat_sess->d_id.b.al_pa; | |
1b655b19 NB |
1443 | |
1444 | /* | |
1445 | * And now setup se_nacl and session pointers into HW lport internal | |
1446 | * mappings for fabric S_ID and LOOP_ID. | |
1447 | */ | |
1448 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1449 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, | |
1450 | se_sess, qlat_sess, be_sid); | |
1451 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, | |
1452 | se_sess, qlat_sess, loop_id); | |
1453 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1454 | ||
1455 | return 0; | |
1456 | } | |
1457 | ||
75f8c1f6 NB |
1458 | /* |
1459 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1460 | * to locate struct se_node_acl | |
1461 | */ | |
1462 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1463 | scsi_qla_host_t *vha, | |
1464 | unsigned char *fc_wwpn, | |
5d964837 | 1465 | struct fc_port *qlat_sess) |
75f8c1f6 NB |
1466 | { |
1467 | struct qla_hw_data *ha = vha->hw; | |
1468 | struct tcm_qla2xxx_lport *lport; | |
1469 | struct tcm_qla2xxx_tpg *tpg; | |
75f8c1f6 | 1470 | struct se_session *se_sess; |
75f8c1f6 | 1471 | unsigned char port_name[36]; |
03e8c680 | 1472 | int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count : |
51a07f84 | 1473 | TCM_QLA2XXX_DEFAULT_TAGS; |
75f8c1f6 | 1474 | |
0e8cd71c | 1475 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1476 | if (!lport) { |
1477 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1478 | dump_stack(); | |
1479 | return -EINVAL; | |
1480 | } | |
1481 | /* | |
1482 | * Locate the TPG=1 reference.. | |
1483 | */ | |
1484 | tpg = lport->tpg_1; | |
1485 | if (!tpg) { | |
67eb4a60 | 1486 | pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n"); |
75f8c1f6 NB |
1487 | return -EINVAL; |
1488 | } | |
75f8c1f6 NB |
1489 | /* |
1490 | * Format the FCP Initiator port_name into colon seperated values to | |
1491 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1492 | */ | |
1493 | memset(&port_name, 0, 36); | |
3c9786e5 | 1494 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1495 | /* |
1496 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1497 | * via ConfigFS, or via running in TPG demo mode. | |
1498 | */ | |
fa834287 | 1499 | se_sess = target_setup_session(&tpg->se_tpg, num_tags, |
1b655b19 NB |
1500 | sizeof(struct qla_tgt_cmd), |
1501 | TARGET_PROT_ALL, port_name, | |
1502 | qlat_sess, tcm_qla2xxx_session_cb); | |
1503 | if (IS_ERR(se_sess)) | |
1504 | return PTR_ERR(se_sess); | |
75f8c1f6 NB |
1505 | |
1506 | return 0; | |
1507 | } | |
1508 | ||
5d964837 | 1509 | static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id, |
c8292d1d RD |
1510 | uint16_t loop_id, bool conf_compl_supported) |
1511 | { | |
1512 | struct qla_tgt *tgt = sess->tgt; | |
1513 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1514 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1515 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1516 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1517 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1518 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1519 | u32 key; | |
1520 | ||
1521 | ||
37cacc0a | 1522 | if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24) |
7b833558 OK |
1523 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1524 | sess, sess->port_name, | |
37cacc0a QT |
1525 | sess->loop_id, loop_id, sess->d_id.b.domain, |
1526 | sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain, | |
7b833558 | 1527 | s_id.b.area, s_id.b.al_pa); |
c8292d1d RD |
1528 | |
1529 | if (sess->loop_id != loop_id) { | |
1530 | /* | |
1531 | * Because we can shuffle loop IDs around and we | |
1532 | * update different sessions non-atomically, we might | |
1533 | * have overwritten this session's old loop ID | |
1534 | * already, and we might end up overwriting some other | |
1535 | * session that will be updated later. So we have to | |
1536 | * be extra careful and we can't warn about those things... | |
1537 | */ | |
1538 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1539 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1540 | ||
1541 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1542 | ||
1543 | sess->loop_id = loop_id; | |
1544 | } | |
1545 | ||
37cacc0a QT |
1546 | if (sess->d_id.b24 != s_id.b24) { |
1547 | key = (((u32) sess->d_id.b.domain << 16) | | |
1548 | ((u32) sess->d_id.b.area << 8) | | |
1549 | ((u32) sess->d_id.b.al_pa)); | |
c8292d1d RD |
1550 | |
1551 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
37cacc0a QT |
1552 | WARN(btree_remove32(&lport->lport_fcport_map, key) != |
1553 | se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1554 | sess->d_id.b.domain, sess->d_id.b.area, | |
1555 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1556 | else |
1557 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
37cacc0a QT |
1558 | sess->d_id.b.domain, sess->d_id.b.area, |
1559 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1560 | |
1561 | key = (((u32) s_id.b.domain << 16) | | |
1562 | ((u32) s_id.b.area << 8) | | |
1563 | ((u32) s_id.b.al_pa)); | |
1564 | ||
1565 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1566 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1567 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1568 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1569 | } else { | |
37cacc0a QT |
1570 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, |
1571 | GFP_ATOMIC); | |
c8292d1d RD |
1572 | } |
1573 | ||
37cacc0a | 1574 | sess->d_id = s_id; |
c8292d1d RD |
1575 | nacl->nport_id = key; |
1576 | } | |
1577 | ||
1578 | sess->conf_compl_supported = conf_compl_supported; | |
a6ca8878 | 1579 | |
c8292d1d RD |
1580 | } |
1581 | ||
75f8c1f6 NB |
1582 | /* |
1583 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1584 | */ | |
1585 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
84905dfe | 1586 | .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag, |
75f8c1f6 NB |
1587 | .handle_cmd = tcm_qla2xxx_handle_cmd, |
1588 | .handle_data = tcm_qla2xxx_handle_data, | |
1589 | .handle_tmr = tcm_qla2xxx_handle_tmr, | |
1590 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1591 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1592 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1593 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1594 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1595 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1596 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1597 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
5d964837 | 1598 | .put_sess = tcm_qla2xxx_put_sess, |
75f8c1f6 | 1599 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
be25152c QT |
1600 | .get_dif_tags = tcm_qla2xxx_dif_tags, |
1601 | .chk_dif_tags = tcm_qla2xxx_chk_dif_tags, | |
75f8c1f6 NB |
1602 | }; |
1603 | ||
1604 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1605 | { | |
1606 | int rc; | |
1607 | ||
1608 | rc = btree_init32(&lport->lport_fcport_map); | |
1609 | if (rc) { | |
1610 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1611 | return rc; | |
1612 | } | |
1613 | ||
fad953ce KC |
1614 | lport->lport_loopid_map = |
1615 | vzalloc(array_size(65536, | |
1616 | sizeof(struct tcm_qla2xxx_fc_loopid))); | |
75f8c1f6 NB |
1617 | if (!lport->lport_loopid_map) { |
1618 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1619 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1620 | btree_destroy32(&lport->lport_fcport_map); | |
1621 | return -ENOMEM; | |
1622 | } | |
75f8c1f6 NB |
1623 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", |
1624 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1625 | return 0; | |
1626 | } | |
1627 | ||
49a47f2c NB |
1628 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1629 | void *target_lport_ptr, | |
1630 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1631 | { |
49a47f2c NB |
1632 | struct qla_hw_data *ha = vha->hw; |
1633 | struct tcm_qla2xxx_lport *lport = | |
1634 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1635 | /* |
49a47f2c | 1636 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1637 | */ |
49a47f2c NB |
1638 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1639 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1640 | lport->qla_vha = vha; |
1641 | ||
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1646 | struct target_fabric_configfs *tf, | |
1647 | struct config_group *group, | |
1648 | const char *name) | |
1649 | { | |
1650 | struct tcm_qla2xxx_lport *lport; | |
1651 | u64 wwpn; | |
1652 | int ret = -ENODEV; | |
1653 | ||
1654 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1655 | return ERR_PTR(-EINVAL); | |
1656 | ||
1657 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1658 | if (!lport) { | |
1659 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1660 | return ERR_PTR(-ENOMEM); | |
1661 | } | |
1662 | lport->lport_wwpn = wwpn; | |
1663 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1664 | wwpn); | |
c046aa0f | 1665 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1666 | |
1667 | ret = tcm_qla2xxx_init_lport(lport); | |
1668 | if (ret != 0) | |
1669 | goto out; | |
1670 | ||
49a47f2c NB |
1671 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1672 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1673 | if (ret != 0) |
1674 | goto out_lport; | |
1675 | ||
1676 | return &lport->lport_wwn; | |
1677 | out_lport: | |
1678 | vfree(lport->lport_loopid_map); | |
1679 | btree_destroy32(&lport->lport_fcport_map); | |
1680 | out: | |
1681 | kfree(lport); | |
1682 | return ERR_PTR(ret); | |
1683 | } | |
1684 | ||
1685 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1686 | { | |
1687 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1688 | struct tcm_qla2xxx_lport, lport_wwn); | |
1689 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1690 | struct se_node_acl *node; |
1691 | u32 key = 0; | |
1692 | ||
1693 | /* | |
1694 | * Call into qla2x_target.c LLD logic to complete the | |
1695 | * shutdown of struct qla_tgt after the call to | |
1696 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1697 | */ | |
0e8cd71c SK |
1698 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1699 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1700 | |
1701 | qlt_lport_deregister(vha); | |
1702 | ||
1703 | vfree(lport->lport_loopid_map); | |
1704 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1705 | btree_remove32(&lport->lport_fcport_map, key); | |
1706 | btree_destroy32(&lport->lport_fcport_map); | |
1707 | kfree(lport); | |
1708 | } | |
1709 | ||
49a47f2c NB |
1710 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1711 | void *target_lport_ptr, | |
1712 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1713 | { | |
1714 | struct fc_vport *vport; | |
1715 | struct Scsi_Host *sh = base_vha->host; | |
1716 | struct scsi_qla_host *npiv_vha; | |
1717 | struct tcm_qla2xxx_lport *lport = | |
1718 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1719 | struct tcm_qla2xxx_lport *base_lport = |
1720 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
49a47f2c NB |
1721 | struct fc_vport_identifiers vport_id; |
1722 | ||
ead03855 | 1723 | if (qla_ini_mode_enabled(base_vha)) { |
49a47f2c NB |
1724 | pr_err("qla2xxx base_vha not enabled for target mode\n"); |
1725 | return -EPERM; | |
1726 | } | |
1727 | ||
7474f52a NB |
1728 | if (!base_lport || !base_lport->tpg_1 || |
1729 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1730 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1731 | return -EPERM; | |
1732 | } | |
7474f52a | 1733 | |
49a47f2c NB |
1734 | memset(&vport_id, 0, sizeof(vport_id)); |
1735 | vport_id.port_name = npiv_wwpn; | |
1736 | vport_id.node_name = npiv_wwnn; | |
1737 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1738 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1739 | vport_id.disable = false; | |
1740 | ||
1741 | vport = fc_vport_create(sh, 0, &vport_id); | |
1742 | if (!vport) { | |
1743 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1744 | return -ENODEV; | |
1745 | } | |
1746 | /* | |
1747 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1748 | */ | |
1749 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1750 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1751 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1752 | scsi_host_get(npiv_vha->host); |
1753 | return 0; | |
1754 | } | |
1755 | ||
1756 | ||
75f8c1f6 NB |
1757 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1758 | struct target_fabric_configfs *tf, | |
1759 | struct config_group *group, | |
1760 | const char *name) | |
1761 | { | |
1762 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1763 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1764 | char *p, tmp[128]; | |
75f8c1f6 NB |
1765 | int ret; |
1766 | ||
49a47f2c NB |
1767 | snprintf(tmp, 128, "%s", name); |
1768 | ||
1769 | p = strchr(tmp, '@'); | |
1770 | if (!p) { | |
669a311b | 1771 | pr_err("Unable to locate NPIV '@' separator\n"); |
49a47f2c NB |
1772 | return ERR_PTR(-EINVAL); |
1773 | } | |
1774 | *p++ = '\0'; | |
1775 | ||
1776 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1777 | return ERR_PTR(-EINVAL); | |
1778 | ||
1779 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1780 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1781 | return ERR_PTR(-EINVAL); |
1782 | ||
1783 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1784 | if (!lport) { | |
1785 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1786 | return ERR_PTR(-ENOMEM); | |
1787 | } | |
1788 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1789 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1790 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1791 | |
0e8cd71c | 1792 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1793 | if (ret != 0) |
1794 | goto out; | |
1795 | ||
49a47f2c NB |
1796 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1797 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1798 | if (ret != 0) |
1799 | goto out_lport; | |
1800 | ||
75f8c1f6 | 1801 | return &lport->lport_wwn; |
0e8cd71c SK |
1802 | out_lport: |
1803 | vfree(lport->lport_loopid_map); | |
1804 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1805 | out: |
1806 | kfree(lport); | |
1807 | return ERR_PTR(ret); | |
1808 | } | |
1809 | ||
1810 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1811 | { | |
1812 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1813 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1814 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1815 | struct qla_hw_data *ha = npiv_vha->hw; | |
1816 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1817 | ||
1818 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1819 | /* |
0e8cd71c | 1820 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1821 | */ |
49a47f2c NB |
1822 | fc_vport_terminate(npiv_vha->fc_vport); |
1823 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1824 | kfree(lport); |
1825 | } | |
1826 | ||
1827 | ||
2eafd729 CH |
1828 | static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, |
1829 | char *page) | |
75f8c1f6 NB |
1830 | { |
1831 | return sprintf(page, | |
49541a04 JB |
1832 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n", |
1833 | QLA2XXX_VERSION, utsname()->sysname, | |
1834 | utsname()->machine, utsname()->release); | |
75f8c1f6 NB |
1835 | } |
1836 | ||
2eafd729 | 1837 | CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); |
75f8c1f6 NB |
1838 | |
1839 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
2eafd729 | 1840 | &tcm_qla2xxx_wwn_attr_version, |
75f8c1f6 NB |
1841 | NULL, |
1842 | }; | |
1843 | ||
9ac8928e CH |
1844 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1845 | .module = THIS_MODULE, | |
30c7ca93 | 1846 | .fabric_name = "qla2xxx", |
144bc4c2 | 1847 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
8f9b5654 NB |
1848 | /* |
1849 | * XXX: Limit assumes single page per scatter-gather-list entry. | |
1850 | * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096 | |
1851 | */ | |
1852 | .max_data_sg_nents = 1200, | |
75f8c1f6 NB |
1853 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1854 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1855 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1856 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1857 | .tpg_check_demo_mode_write_protect = | |
1858 | tcm_qla2xxx_check_demo_write_protect, | |
1859 | .tpg_check_prod_mode_write_protect = | |
1860 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1861 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1862 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1863 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1864 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1865 | .release_cmd = tcm_qla2xxx_release_cmd, | |
75f8c1f6 NB |
1866 | .close_session = tcm_qla2xxx_close_session, |
1867 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1868 | .sess_get_initiator_sid = NULL, | |
1869 | .write_pending = tcm_qla2xxx_write_pending, | |
75f8c1f6 | 1870 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
75f8c1f6 NB |
1871 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1872 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1873 | .queue_status = tcm_qla2xxx_queue_status, | |
1874 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1875 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1876 | /* |
1877 | * Setup function pointers for generic logic in | |
1878 | * target_core_fabric_configfs.c | |
1879 | */ | |
1880 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1881 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1882 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1883 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1884 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1885 | |
1886 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1887 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1888 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1889 | }; |
1890 | ||
9ac8928e CH |
1891 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1892 | .module = THIS_MODULE, | |
30c7ca93 | 1893 | .fabric_name = "qla2xxx_npiv", |
144bc4c2 | 1894 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
84197a36 | 1895 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1896 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
0e8cd71c SK |
1897 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1898 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1899 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1900 | .tpg_check_prod_mode_write_protect = | |
1901 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1902 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1903 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1904 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 1905 | .release_cmd = tcm_qla2xxx_release_cmd, |
75f8c1f6 NB |
1906 | .close_session = tcm_qla2xxx_close_session, |
1907 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1908 | .sess_get_initiator_sid = NULL, | |
1909 | .write_pending = tcm_qla2xxx_write_pending, | |
75f8c1f6 | 1910 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, |
75f8c1f6 NB |
1911 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1912 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1913 | .queue_status = tcm_qla2xxx_queue_status, | |
1914 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1915 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1916 | /* |
1917 | * Setup function pointers for generic logic in | |
1918 | * target_core_fabric_configfs.c | |
1919 | */ | |
1920 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1921 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1922 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1923 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1924 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1925 | |
1926 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1927 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
1928 | }; |
1929 | ||
1930 | static int tcm_qla2xxx_register_configfs(void) | |
1931 | { | |
75f8c1f6 NB |
1932 | int ret; |
1933 | ||
49541a04 JB |
1934 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n", |
1935 | QLA2XXX_VERSION, utsname()->sysname, | |
1936 | utsname()->machine, utsname()->release); | |
9ac8928e CH |
1937 | |
1938 | ret = target_register_template(&tcm_qla2xxx_ops); | |
1939 | if (ret) | |
75f8c1f6 | 1940 | return ret; |
75f8c1f6 | 1941 | |
9ac8928e CH |
1942 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
1943 | if (ret) | |
75f8c1f6 | 1944 | goto out_fabric; |
75f8c1f6 NB |
1945 | |
1946 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
1947 | WQ_MEM_RECLAIM, 0); | |
1948 | if (!tcm_qla2xxx_free_wq) { | |
1949 | ret = -ENOMEM; | |
1950 | goto out_fabric_npiv; | |
1951 | } | |
1952 | ||
75f8c1f6 NB |
1953 | return 0; |
1954 | ||
75f8c1f6 | 1955 | out_fabric_npiv: |
9ac8928e | 1956 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 1957 | out_fabric: |
9ac8928e | 1958 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
1959 | return ret; |
1960 | } | |
1961 | ||
1962 | static void tcm_qla2xxx_deregister_configfs(void) | |
1963 | { | |
75f8c1f6 NB |
1964 | destroy_workqueue(tcm_qla2xxx_free_wq); |
1965 | ||
9ac8928e CH |
1966 | target_unregister_template(&tcm_qla2xxx_ops); |
1967 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
1968 | } |
1969 | ||
1970 | static int __init tcm_qla2xxx_init(void) | |
1971 | { | |
1972 | int ret; | |
1973 | ||
1974 | ret = tcm_qla2xxx_register_configfs(); | |
1975 | if (ret < 0) | |
1976 | return ret; | |
1977 | ||
1978 | return 0; | |
1979 | } | |
1980 | ||
1981 | static void __exit tcm_qla2xxx_exit(void) | |
1982 | { | |
1983 | tcm_qla2xxx_deregister_configfs(); | |
1984 | } | |
1985 | ||
24c7d6c7 | 1986 | MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver"); |
75f8c1f6 NB |
1987 | MODULE_LICENSE("GPL"); |
1988 | module_init(tcm_qla2xxx_init); | |
1989 | module_exit(tcm_qla2xxx_exit); |