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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> | |
75f8c1f6 | 28 | #include <linux/utsname.h> |
5538d294 | 29 | #include <linux/vmalloc.h> |
75f8c1f6 NB |
30 | #include <linux/init.h> |
31 | #include <linux/list.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/kthread.h> | |
34 | #include <linux/types.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/configfs.h> | |
37 | #include <linux/ctype.h> | |
75f8c1f6 NB |
38 | #include <asm/unaligned.h> |
39 | #include <scsi/scsi.h> | |
40 | #include <scsi/scsi_host.h> | |
41 | #include <scsi/scsi_device.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <target/target_core_base.h> | |
44 | #include <target/target_core_fabric.h> | |
75f8c1f6 NB |
45 | |
46 | #include "qla_def.h" | |
47 | #include "qla_target.h" | |
48 | #include "tcm_qla2xxx.h" | |
49 | ||
4d6609c4 HM |
50 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
51 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; | |
52 | ||
75f8c1f6 NB |
53 | /* |
54 | * Parse WWN. | |
55 | * If strict, we require lower-case hex and colon separators to be sure | |
56 | * the name is the same as what would be generated by ft_format_wwn() | |
57 | * so the name and wwn are mapped one-to-one. | |
58 | */ | |
59 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
60 | { | |
61 | const char *cp; | |
62 | char c; | |
63 | u32 nibble; | |
64 | u32 byte = 0; | |
65 | u32 pos = 0; | |
66 | u32 err; | |
67 | ||
68 | *wwn = 0; | |
69 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
70 | c = *cp; | |
71 | if (c == '\n' && cp[1] == '\0') | |
72 | continue; | |
73 | if (strict && pos++ == 2 && byte++ < 7) { | |
74 | pos = 0; | |
75 | if (c == ':') | |
76 | continue; | |
77 | err = 1; | |
78 | goto fail; | |
79 | } | |
80 | if (c == '\0') { | |
81 | err = 2; | |
82 | if (strict && byte != 8) | |
83 | goto fail; | |
84 | return cp - name; | |
85 | } | |
86 | err = 3; | |
87 | if (isdigit(c)) | |
88 | nibble = c - '0'; | |
89 | else if (isxdigit(c) && (islower(c) || !strict)) | |
90 | nibble = tolower(c) - 'a' + 10; | |
91 | else | |
92 | goto fail; | |
93 | *wwn = (*wwn << 4) | nibble; | |
94 | } | |
95 | err = 4; | |
96 | fail: | |
97 | pr_debug("err %u len %zu pos %u byte %u\n", | |
98 | err, cp - name, pos, byte); | |
99 | return -1; | |
100 | } | |
101 | ||
102 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
103 | { | |
104 | u8 b[8]; | |
105 | ||
106 | put_unaligned_be64(wwn, b); | |
107 | return snprintf(buf, len, | |
108 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
109 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
110 | } | |
111 | ||
112 | static char *tcm_qla2xxx_get_fabric_name(void) | |
113 | { | |
114 | return "qla2xxx"; | |
115 | } | |
116 | ||
117 | /* | |
118 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
119 | */ | |
120 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
121 | { | |
d4f75b56 | 122 | unsigned int i, j; |
75f8c1f6 NB |
123 | u8 wwn[8]; |
124 | ||
125 | memset(wwn, 0, sizeof(wwn)); | |
126 | ||
127 | /* Validate and store the new name */ | |
128 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
129 | int value; |
130 | ||
75f8c1f6 NB |
131 | value = hex_to_bin(*ns++); |
132 | if (value >= 0) | |
133 | j = (j << 4) | value; | |
134 | else | |
135 | return -EINVAL; | |
136 | ||
137 | if (i % 2) { | |
138 | wwn[i/2] = j & 0xff; | |
139 | j = 0; | |
140 | } | |
141 | } | |
142 | ||
143 | *nm = wwn_to_u64(wwn); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | /* | |
148 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
149 | * store_fc_host_vport_create() | |
150 | */ | |
151 | static int tcm_qla2xxx_npiv_parse_wwn( | |
152 | const char *name, | |
153 | size_t count, | |
154 | u64 *wwpn, | |
155 | u64 *wwnn) | |
156 | { | |
157 | unsigned int cnt = count; | |
158 | int rc; | |
159 | ||
160 | *wwpn = 0; | |
161 | *wwnn = 0; | |
162 | ||
163 | /* count may include a LF at end of string */ | |
0e8cd71c | 164 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
165 | cnt--; |
166 | ||
167 | /* validate we have enough characters for WWPN */ | |
168 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
169 | return -EINVAL; | |
170 | ||
171 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
172 | if (rc != 0) | |
173 | return rc; | |
174 | ||
175 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
176 | if (rc != 0) | |
177 | return rc; | |
178 | ||
179 | return 0; | |
180 | } | |
181 | ||
75f8c1f6 NB |
182 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
183 | { | |
184 | return "qla2xxx_npiv"; | |
185 | } | |
186 | ||
75f8c1f6 NB |
187 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
188 | { | |
189 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
190 | struct tcm_qla2xxx_tpg, se_tpg); | |
191 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
192 | ||
c046aa0f | 193 | return lport->lport_naa_name; |
75f8c1f6 NB |
194 | } |
195 | ||
75f8c1f6 NB |
196 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
197 | { | |
198 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
199 | struct tcm_qla2xxx_tpg, se_tpg); | |
200 | return tpg->lport_tpgt; | |
201 | } | |
202 | ||
75f8c1f6 NB |
203 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
204 | { | |
205 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
206 | struct tcm_qla2xxx_tpg, se_tpg); | |
207 | ||
a309f489 | 208 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
209 | } |
210 | ||
211 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
212 | { | |
213 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
214 | struct tcm_qla2xxx_tpg, se_tpg); | |
215 | ||
a309f489 | 216 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
217 | } |
218 | ||
219 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
220 | { | |
221 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
222 | struct tcm_qla2xxx_tpg, se_tpg); | |
223 | ||
a309f489 | 224 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
225 | } |
226 | ||
227 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
228 | { | |
229 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
230 | struct tcm_qla2xxx_tpg, se_tpg); | |
231 | ||
a309f489 | 232 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
233 | } |
234 | ||
de04a8aa AG |
235 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
236 | { | |
237 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
238 | struct tcm_qla2xxx_tpg, se_tpg); | |
239 | ||
a309f489 | 240 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
241 | } |
242 | ||
64b16887 NB |
243 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
244 | { | |
245 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
246 | struct tcm_qla2xxx_tpg, se_tpg); | |
247 | ||
248 | return tpg->tpg_attrib.fabric_prot_type; | |
249 | } | |
250 | ||
75f8c1f6 NB |
251 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
252 | { | |
253 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
254 | struct tcm_qla2xxx_tpg, se_tpg); | |
255 | ||
256 | return tpg->lport_tpgt; | |
257 | } | |
258 | ||
259 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
260 | { | |
261 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
262 | struct qla_tgt_mgmt_cmd, free_work); | |
263 | ||
264 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
265 | } | |
266 | ||
267 | /* | |
268 | * Called from qla_target_template->free_mcmd(), and will call | |
269 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
270 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
271 | */ | |
272 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
273 | { | |
274 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
275 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
276 | } | |
277 | ||
278 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
279 | { | |
280 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
281 | ||
e07f8f65 SK |
282 | cmd->cmd_in_wq = 0; |
283 | ||
1eb42f96 | 284 | WARN_ON(cmd->trc_flags & TRC_CMD_FREE); |
e07f8f65 | 285 | |
60a9eadb | 286 | cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++; |
1eb42f96 | 287 | cmd->trc_flags |= TRC_CMD_FREE; |
75f8c1f6 NB |
288 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
289 | } | |
290 | ||
291 | /* | |
292 | * Called from qla_target_template->free_cmd(), and will call | |
293 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
294 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
295 | */ | |
296 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
297 | { | |
60a9eadb | 298 | cmd->qpair->tgt_counters.core_qla_free_cmd++; |
e07f8f65 | 299 | cmd->cmd_in_wq = 1; |
a07100e0 | 300 | |
1eb42f96 QT |
301 | WARN_ON(cmd->trc_flags & TRC_CMD_DONE); |
302 | cmd->trc_flags |= TRC_CMD_DONE; | |
a07100e0 | 303 | |
75f8c1f6 | 304 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
fb3269ba | 305 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
306 | } |
307 | ||
308 | /* | |
309 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
310 | */ | |
311 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
312 | { | |
e07f8f65 SK |
313 | struct qla_tgt_cmd *cmd; |
314 | ||
315 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
316 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
1eb42f96 | 317 | cmd->trc_flags |= TRC_CMD_CHK_STOP; |
e07f8f65 SK |
318 | } |
319 | ||
afc16604 | 320 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
321 | } |
322 | ||
323 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
324 | * fabric descriptor @se_cmd command to release | |
325 | */ | |
326 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
327 | { | |
328 | struct qla_tgt_cmd *cmd; | |
329 | ||
330 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
331 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
332 | struct qla_tgt_mgmt_cmd, se_cmd); | |
333 | qlt_free_mcmd(mcmd); | |
334 | return; | |
335 | } | |
336 | ||
337 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
338 | qlt_free_cmd(cmd); | |
339 | } | |
340 | ||
5d964837 QT |
341 | static void tcm_qla2xxx_release_session(struct kref *kref) |
342 | { | |
343 | struct fc_port *sess = container_of(kref, | |
344 | struct fc_port, sess_kref); | |
345 | ||
346 | qlt_unreg_sess(sess); | |
347 | } | |
348 | ||
349 | static void tcm_qla2xxx_put_sess(struct fc_port *sess) | |
350 | { | |
351 | if (!sess) | |
352 | return; | |
353 | ||
354 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); | |
355 | kref_put(&sess->sess_kref, tcm_qla2xxx_release_session); | |
356 | } | |
357 | ||
75f8c1f6 NB |
358 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
359 | { | |
5d964837 | 360 | struct fc_port *sess = se_sess->fabric_sess_ptr; |
75f8c1f6 NB |
361 | struct scsi_qla_host *vha; |
362 | unsigned long flags; | |
363 | ||
364 | BUG_ON(!sess); | |
365 | vha = sess->vha; | |
366 | ||
7560151b | 367 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
e3dc0e31 | 368 | target_sess_cmd_list_set_waiting(se_sess); |
5d964837 | 369 | tcm_qla2xxx_put_sess(sess); |
7560151b | 370 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
75f8c1f6 NB |
371 | } |
372 | ||
373 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
374 | { | |
375 | return 0; | |
376 | } | |
377 | ||
75f8c1f6 NB |
378 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
379 | { | |
380 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
381 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
382 | |
383 | if (cmd->aborted) { | |
384 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
385 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
386 | * already kick start the free. | |
387 | */ | |
388 | pr_debug("write_pending aborted cmd[%p] refcount %d " | |
389 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 390 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
391 | cmd->se_cmd.transport_state, |
392 | cmd->se_cmd.t_state, | |
393 | cmd->se_cmd.se_cmd_flags); | |
394 | return 0; | |
395 | } | |
1eb42f96 | 396 | cmd->trc_flags |= TRC_XFR_RDY; |
75f8c1f6 | 397 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 398 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
399 | |
400 | cmd->sg_cnt = se_cmd->t_data_nents; | |
401 | cmd->sg = se_cmd->t_data_sg; | |
402 | ||
f83adb61 QT |
403 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
404 | cmd->prot_sg = se_cmd->t_prot_sg; | |
405 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
406 | se_cmd->pi_err = 0; | |
407 | ||
75f8c1f6 NB |
408 | /* |
409 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
410 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
411 | */ | |
412 | return qlt_rdy_to_xfer(cmd); | |
413 | } | |
414 | ||
415 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
416 | { | |
417 | unsigned long flags; | |
418 | /* | |
419 | * Check for WRITE_PENDING status to determine if we need to wait for | |
420 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
421 | */ | |
422 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
423 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
424 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
425 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
426 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
a07100e0 | 427 | 50); |
75f8c1f6 NB |
428 | return 0; |
429 | } | |
430 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
436 | { | |
437 | return; | |
438 | } | |
439 | ||
75f8c1f6 NB |
440 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
441 | { | |
5155ce5f DKU |
442 | if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { |
443 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
444 | struct qla_tgt_cmd, se_cmd); | |
445 | return cmd->state; | |
446 | } | |
447 | ||
75f8c1f6 NB |
448 | return 0; |
449 | } | |
450 | ||
451 | /* | |
452 | * Called from process context in qla_target.c:qlt_do_work() code | |
453 | */ | |
454 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
455 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
456 | int data_dir, int bidi) | |
457 | { | |
458 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
459 | struct se_session *se_sess; | |
5d964837 | 460 | struct fc_port *sess; |
54a5e73f LO |
461 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
462 | struct se_portal_group *se_tpg; | |
463 | struct tcm_qla2xxx_tpg *tpg; | |
464 | #endif | |
75f8c1f6 NB |
465 | int flags = TARGET_SCF_ACK_KREF; |
466 | ||
467 | if (bidi) | |
468 | flags |= TARGET_SCF_BIDI_OP; | |
469 | ||
5327c7db QT |
470 | if (se_cmd->cpuid != WORK_CPU_UNBOUND) |
471 | flags |= TARGET_SCF_USE_CPUID; | |
472 | ||
75f8c1f6 NB |
473 | sess = cmd->sess; |
474 | if (!sess) { | |
5d964837 | 475 | pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n"); |
75f8c1f6 NB |
476 | return -EINVAL; |
477 | } | |
478 | ||
479 | se_sess = sess->se_sess; | |
480 | if (!se_sess) { | |
481 | pr_err("Unable to locate active struct se_session\n"); | |
482 | return -EINVAL; | |
483 | } | |
484 | ||
54a5e73f LO |
485 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
486 | se_tpg = se_sess->se_tpg; | |
487 | tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); | |
488 | if (unlikely(tpg->tpg_attrib.jam_host)) { | |
489 | /* return, and dont run target_submit_cmd,discarding command */ | |
490 | return 0; | |
491 | } | |
492 | #endif | |
493 | ||
60a9eadb | 494 | cmd->qpair->tgt_counters.qla_core_sbt_cmd++; |
d6dfc868 | 495 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
496 | cmd->unpacked_lun, data_length, fcp_task_attr, |
497 | data_dir, flags); | |
75f8c1f6 NB |
498 | } |
499 | ||
43381ce8 | 500 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
501 | { |
502 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
75f8c1f6 | 503 | |
75f8c1f6 NB |
504 | /* |
505 | * Ensure that the complete FCP WRITE payload has been received. | |
506 | * Otherwise return an exception via CHECK_CONDITION status. | |
507 | */ | |
e07f8f65 | 508 | cmd->cmd_in_wq = 0; |
a07100e0 | 509 | |
60a9eadb | 510 | cmd->qpair->tgt_counters.qla_core_ret_ctio++; |
75f8c1f6 NB |
511 | if (!cmd->write_data_transferred) { |
512 | /* | |
513 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
514 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
515 | */ | |
43381ce8 CH |
516 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
517 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
518 | return; | |
75f8c1f6 | 519 | } |
75f8c1f6 | 520 | |
be25152c QT |
521 | switch (cmd->dif_err_code) { |
522 | case DIF_ERR_GRD: | |
523 | cmd->se_cmd.pi_err = | |
524 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; | |
525 | break; | |
526 | case DIF_ERR_REF: | |
527 | cmd->se_cmd.pi_err = | |
528 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; | |
529 | break; | |
530 | case DIF_ERR_APP: | |
531 | cmd->se_cmd.pi_err = | |
532 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; | |
533 | break; | |
534 | case DIF_ERR_NONE: | |
535 | default: | |
536 | break; | |
537 | } | |
538 | ||
f83adb61 QT |
539 | if (cmd->se_cmd.pi_err) |
540 | transport_generic_request_failure(&cmd->se_cmd, | |
541 | cmd->se_cmd.pi_err); | |
542 | else | |
543 | transport_generic_request_failure(&cmd->se_cmd, | |
544 | TCM_CHECK_CONDITION_ABORT_CMD); | |
545 | ||
43381ce8 | 546 | return; |
75f8c1f6 | 547 | } |
43381ce8 CH |
548 | |
549 | return target_execute_cmd(&cmd->se_cmd); | |
550 | } | |
551 | ||
552 | /* | |
553 | * Called from qla_target.c:qlt_do_ctio_completion() | |
554 | */ | |
555 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
556 | { | |
1eb42f96 | 557 | cmd->trc_flags |= TRC_DATA_IN; |
e07f8f65 | 558 | cmd->cmd_in_wq = 1; |
43381ce8 | 559 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
fb3269ba | 560 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
561 | } |
562 | ||
be25152c | 563 | static int tcm_qla2xxx_chk_dif_tags(uint32_t tag) |
f83adb61 | 564 | { |
be25152c | 565 | return 0; |
f83adb61 QT |
566 | } |
567 | ||
be25152c QT |
568 | static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd, |
569 | uint16_t *pfw_prot_opts) | |
f83adb61 | 570 | { |
be25152c QT |
571 | struct se_cmd *se_cmd = &cmd->se_cmd; |
572 | ||
573 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD)) | |
574 | *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK; | |
575 | ||
576 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG)) | |
577 | *pfw_prot_opts |= PO_DIS_APP_TAG_VALD; | |
578 | ||
579 | return 0; | |
f83adb61 QT |
580 | } |
581 | ||
75f8c1f6 NB |
582 | /* |
583 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
584 | */ | |
f775bd14 | 585 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun, |
be92fc3f | 586 | uint16_t tmr_func, uint32_t tag) |
75f8c1f6 | 587 | { |
5d964837 | 588 | struct fc_port *sess = mcmd->sess; |
75f8c1f6 | 589 | struct se_cmd *se_cmd = &mcmd->se_cmd; |
be92fc3f | 590 | int transl_tmr_func = 0; |
eb5ae233 | 591 | int flags = TARGET_SCF_ACK_KREF; |
be92fc3f QT |
592 | |
593 | switch (tmr_func) { | |
594 | case QLA_TGT_ABTS: | |
595 | pr_debug("%ld: ABTS received\n", sess->vha->host_no); | |
596 | transl_tmr_func = TMR_ABORT_TASK; | |
eb5ae233 | 597 | flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG; |
be92fc3f QT |
598 | break; |
599 | case QLA_TGT_2G_ABORT_TASK: | |
600 | pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no); | |
601 | transl_tmr_func = TMR_ABORT_TASK; | |
602 | break; | |
603 | case QLA_TGT_CLEAR_ACA: | |
604 | pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no); | |
605 | transl_tmr_func = TMR_CLEAR_ACA; | |
606 | break; | |
607 | case QLA_TGT_TARGET_RESET: | |
608 | pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no); | |
609 | transl_tmr_func = TMR_TARGET_WARM_RESET; | |
610 | break; | |
611 | case QLA_TGT_LUN_RESET: | |
612 | pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no); | |
613 | transl_tmr_func = TMR_LUN_RESET; | |
614 | break; | |
615 | case QLA_TGT_CLEAR_TS: | |
616 | pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no); | |
617 | transl_tmr_func = TMR_CLEAR_TASK_SET; | |
618 | break; | |
619 | case QLA_TGT_ABORT_TS: | |
620 | pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no); | |
621 | transl_tmr_func = TMR_ABORT_TASK_SET; | |
622 | break; | |
623 | default: | |
624 | pr_debug("%ld: Unknown task mgmt fn 0x%x\n", | |
625 | sess->vha->host_no, tmr_func); | |
626 | return -ENOSYS; | |
627 | } | |
75f8c1f6 NB |
628 | |
629 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
eb5ae233 | 630 | transl_tmr_func, GFP_ATOMIC, tag, flags); |
75f8c1f6 NB |
631 | } |
632 | ||
633 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
634 | { | |
635 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
636 | struct qla_tgt_cmd, se_cmd); | |
637 | ||
a07100e0 QT |
638 | if (cmd->aborted) { |
639 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
640 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
641 | * already kick start the free. | |
642 | */ | |
643 | pr_debug("queue_data_in aborted cmd[%p] refcount %d " | |
644 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 645 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
646 | cmd->se_cmd.transport_state, |
647 | cmd->se_cmd.t_state, | |
648 | cmd->se_cmd.se_cmd_flags); | |
649 | return 0; | |
650 | } | |
651 | ||
1eb42f96 | 652 | cmd->trc_flags |= TRC_XMIT_DATA; |
75f8c1f6 | 653 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 654 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
655 | |
656 | cmd->sg_cnt = se_cmd->t_data_nents; | |
657 | cmd->sg = se_cmd->t_data_sg; | |
658 | cmd->offset = 0; | |
659 | ||
f83adb61 QT |
660 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
661 | cmd->prot_sg = se_cmd->t_prot_sg; | |
662 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
663 | se_cmd->pi_err = 0; | |
664 | ||
75f8c1f6 NB |
665 | /* |
666 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
667 | */ | |
668 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
669 | se_cmd->scsi_status); | |
670 | } | |
671 | ||
672 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
673 | { | |
674 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
675 | struct qla_tgt_cmd, se_cmd); | |
676 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
677 | ||
694833ee QT |
678 | if (cmd->aborted) { |
679 | /* | |
680 | * Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
681 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
682 | * already kick start the free. | |
683 | */ | |
684 | pr_debug( | |
685 | "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n", | |
686 | cmd, kref_read(&cmd->se_cmd.cmd_kref), | |
687 | cmd->se_cmd.transport_state, cmd->se_cmd.t_state, | |
688 | cmd->se_cmd.se_cmd_flags); | |
689 | return 0; | |
690 | } | |
75f8c1f6 NB |
691 | cmd->bufflen = se_cmd->data_length; |
692 | cmd->sg = NULL; | |
693 | cmd->sg_cnt = 0; | |
694 | cmd->offset = 0; | |
b3faa2e8 | 695 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
1eb42f96 QT |
696 | if (cmd->trc_flags & TRC_XMIT_STATUS) { |
697 | pr_crit("Multiple calls for status = %p.\n", cmd); | |
e07f8f65 SK |
698 | dump_stack(); |
699 | } | |
1eb42f96 | 700 | cmd->trc_flags |= TRC_XMIT_STATUS; |
75f8c1f6 NB |
701 | |
702 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
703 | /* | |
704 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
705 | * for qla_tgt_xmit_response LLD code | |
706 | */ | |
b5aff3d2 RD |
707 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
708 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
709 | se_cmd->residual_count = 0; | |
710 | } | |
75f8c1f6 | 711 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 712 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
713 | |
714 | cmd->bufflen = 0; | |
715 | } | |
716 | /* | |
717 | * Now queue status response to qla2xxx LLD code and response ring | |
718 | */ | |
719 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
720 | } | |
721 | ||
b79fafac | 722 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
723 | { |
724 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
725 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
726 | struct qla_tgt_mgmt_cmd, se_cmd); | |
727 | ||
728 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
729 | mcmd, se_tmr->function, se_tmr->response); | |
730 | /* | |
731 | * Do translation between TCM TM response codes and | |
732 | * QLA2xxx FC TM response codes. | |
733 | */ | |
734 | switch (se_tmr->response) { | |
735 | case TMR_FUNCTION_COMPLETE: | |
736 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
737 | break; | |
738 | case TMR_TASK_DOES_NOT_EXIST: | |
739 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
740 | break; | |
741 | case TMR_FUNCTION_REJECTED: | |
742 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
743 | break; | |
744 | case TMR_LUN_DOES_NOT_EXIST: | |
745 | default: | |
746 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
747 | break; | |
748 | } | |
749 | /* | |
750 | * Queue the TM response to QLA2xxx LLD to build a | |
751 | * CTIO response packet. | |
752 | */ | |
753 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
754 | } |
755 | ||
131e6abc NB |
756 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
757 | { | |
758 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
759 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
760 | |
761 | if (qlt_abort_cmd(cmd)) | |
762 | return; | |
131e6abc NB |
763 | } |
764 | ||
f2d5d9b9 | 765 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
5d964837 | 766 | struct tcm_qla2xxx_nacl *, struct fc_port *); |
75f8c1f6 | 767 | /* |
7560151b | 768 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 769 | */ |
5d964837 | 770 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess) |
75f8c1f6 NB |
771 | { |
772 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
773 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
774 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
775 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
776 | struct tcm_qla2xxx_lport, lport_wwn); | |
777 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
778 | struct tcm_qla2xxx_nacl, se_node_acl); | |
779 | void *node; | |
780 | ||
781 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
782 | ||
783 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
784 | if (WARN_ON(node && (node != se_nacl))) { |
785 | /* | |
786 | * The nacl no longer matches what we think it should be. | |
787 | * Most likely a new dynamic acl has been added while | |
788 | * someone dropped the hardware lock. It clearly is a | |
789 | * bug elsewhere, but this bit can't make things worse. | |
790 | */ | |
791 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
792 | node, GFP_ATOMIC); | |
793 | } | |
75f8c1f6 NB |
794 | |
795 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
796 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
797 | /* |
798 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
799 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
800 | * | |
801 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
802 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
803 | * I/O to complete, to avoid a race between session shutdown execution | |
804 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
805 | */ | |
806 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
807 | } |
808 | ||
5d964837 | 809 | static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess) |
75f8c1f6 | 810 | { |
7560151b | 811 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); |
08234e3a | 812 | target_sess_cmd_list_set_waiting(sess->se_sess); |
75f8c1f6 NB |
813 | } |
814 | ||
c7d6a803 CH |
815 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
816 | const char *name) | |
75f8c1f6 | 817 | { |
c7d6a803 CH |
818 | struct tcm_qla2xxx_nacl *nacl = |
819 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 820 | u64 wwnn; |
75f8c1f6 NB |
821 | |
822 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 823 | return -EINVAL; |
75f8c1f6 | 824 | |
75f8c1f6 NB |
825 | nacl->nport_wwnn = wwnn; |
826 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 827 | |
c7d6a803 | 828 | return 0; |
75f8c1f6 NB |
829 | } |
830 | ||
831 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
832 | ||
833 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
834 | \ | |
2eafd729 CH |
835 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ |
836 | struct config_item *item, char *page) \ | |
75f8c1f6 | 837 | { \ |
2eafd729 | 838 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
839 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
840 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
841 | \ | |
a309f489 | 842 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
843 | } \ |
844 | \ | |
2eafd729 CH |
845 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ |
846 | struct config_item *item, const char *page, size_t count) \ | |
75f8c1f6 | 847 | { \ |
2eafd729 | 848 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
849 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
850 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
2eafd729 | 851 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
75f8c1f6 NB |
852 | unsigned long val; \ |
853 | int ret; \ | |
854 | \ | |
855 | ret = kstrtoul(page, 0, &val); \ | |
856 | if (ret < 0) { \ | |
857 | pr_err("kstrtoul() failed with" \ | |
858 | " ret: %d\n", ret); \ | |
859 | return -EINVAL; \ | |
860 | } \ | |
75f8c1f6 NB |
861 | \ |
862 | if ((val != 0) && (val != 1)) { \ | |
863 | pr_err("Illegal boolean value %lu\n", val); \ | |
864 | return -EINVAL; \ | |
865 | } \ | |
866 | \ | |
2eafd729 CH |
867 | a->name = val; \ |
868 | \ | |
869 | return count; \ | |
870 | } \ | |
871 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) | |
75f8c1f6 | 872 | |
75f8c1f6 | 873 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
75f8c1f6 | 874 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
75f8c1f6 | 875 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
75f8c1f6 | 876 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
de04a8aa | 877 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
54a5e73f LO |
878 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
879 | DEF_QLA_TPG_ATTRIB(jam_host); | |
880 | #endif | |
de04a8aa | 881 | |
75f8c1f6 | 882 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
2eafd729 CH |
883 | &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, |
884 | &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, | |
885 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, | |
886 | &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, | |
887 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, | |
54a5e73f LO |
888 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
889 | &tcm_qla2xxx_tpg_attrib_attr_jam_host, | |
890 | #endif | |
75f8c1f6 NB |
891 | NULL, |
892 | }; | |
893 | ||
894 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
895 | ||
2eafd729 CH |
896 | static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, |
897 | char *page) | |
75f8c1f6 | 898 | { |
2eafd729 | 899 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
900 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
901 | struct tcm_qla2xxx_tpg, se_tpg); | |
902 | ||
903 | return snprintf(page, PAGE_SIZE, "%d\n", | |
904 | atomic_read(&tpg->lport_tpg_enabled)); | |
905 | } | |
906 | ||
7474f52a NB |
907 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
908 | { | |
909 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
910 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
911 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
912 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
913 | ||
d588cf8f | 914 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
915 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
916 | qlt_enable_vha(base_vha); | |
917 | } | |
918 | complete(&base_tpg->tpg_base_comp); | |
919 | } | |
920 | ||
921 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
922 | { | |
923 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
924 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
925 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
926 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
927 | ||
928 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
929 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 930 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
931 | } |
932 | complete(&base_tpg->tpg_base_comp); | |
933 | } | |
934 | ||
2eafd729 CH |
935 | static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, |
936 | const char *page, size_t count) | |
75f8c1f6 | 937 | { |
2eafd729 | 938 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
939 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
940 | struct tcm_qla2xxx_tpg, se_tpg); | |
941 | unsigned long op; | |
942 | int rc; | |
943 | ||
944 | rc = kstrtoul(page, 0, &op); | |
945 | if (rc < 0) { | |
946 | pr_err("kstrtoul() returned %d\n", rc); | |
947 | return -EINVAL; | |
948 | } | |
949 | if ((op != 1) && (op != 0)) { | |
950 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
951 | return -EINVAL; | |
952 | } | |
75f8c1f6 | 953 | if (op) { |
7474f52a NB |
954 | if (atomic_read(&tpg->lport_tpg_enabled)) |
955 | return -EEXIST; | |
956 | ||
957 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 958 | } else { |
7474f52a NB |
959 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
960 | return count; | |
961 | ||
962 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 963 | } |
7474f52a NB |
964 | init_completion(&tpg->tpg_base_comp); |
965 | schedule_work(&tpg->tpg_base_work); | |
966 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 967 | |
7474f52a NB |
968 | if (op) { |
969 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
970 | return -ENODEV; | |
971 | } else { | |
972 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
973 | return -EPERM; | |
974 | } | |
75f8c1f6 NB |
975 | return count; |
976 | } | |
977 | ||
2eafd729 CH |
978 | static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, |
979 | char *page) | |
d23dbaaa | 980 | { |
2eafd729 | 981 | return target_show_dynamic_sessions(to_tpg(item), page); |
d23dbaaa NB |
982 | } |
983 | ||
2eafd729 CH |
984 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, |
985 | const char *page, size_t count) | |
64b16887 | 986 | { |
2eafd729 | 987 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
988 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
989 | struct tcm_qla2xxx_tpg, se_tpg); | |
990 | unsigned long val; | |
991 | int ret = kstrtoul(page, 0, &val); | |
992 | ||
993 | if (ret) { | |
994 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
995 | return ret; | |
996 | } | |
997 | if (val != 0 && val != 1 && val != 3) { | |
998 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
999 | return -EINVAL; | |
1000 | } | |
1001 | tpg->tpg_attrib.fabric_prot_type = val; | |
1002 | ||
1003 | return count; | |
1004 | } | |
1005 | ||
2eafd729 CH |
1006 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, |
1007 | char *page) | |
64b16887 | 1008 | { |
2eafd729 | 1009 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
1010 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
1011 | struct tcm_qla2xxx_tpg, se_tpg); | |
1012 | ||
1013 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
1014 | } | |
2eafd729 | 1015 | |
3786dc45 | 1016 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable); |
2eafd729 CH |
1017 | CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); |
1018 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); | |
64b16887 | 1019 | |
75f8c1f6 | 1020 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
2eafd729 CH |
1021 | &tcm_qla2xxx_tpg_attr_enable, |
1022 | &tcm_qla2xxx_tpg_attr_dynamic_sessions, | |
1023 | &tcm_qla2xxx_tpg_attr_fabric_prot_type, | |
75f8c1f6 NB |
1024 | NULL, |
1025 | }; | |
1026 | ||
1027 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
1028 | struct se_wwn *wwn, | |
1029 | struct config_group *group, | |
1030 | const char *name) | |
1031 | { | |
1032 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1033 | struct tcm_qla2xxx_lport, lport_wwn); | |
1034 | struct tcm_qla2xxx_tpg *tpg; | |
1035 | unsigned long tpgt; | |
1036 | int ret; | |
1037 | ||
1038 | if (strstr(name, "tpgt_") != name) | |
1039 | return ERR_PTR(-EINVAL); | |
1040 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1041 | return ERR_PTR(-EINVAL); | |
1042 | ||
0e8cd71c | 1043 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1044 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1045 | return ERR_PTR(-ENOSYS); | |
1046 | } | |
1047 | ||
1048 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1049 | if (!tpg) { | |
1050 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1051 | return ERR_PTR(-ENOMEM); | |
1052 | } | |
1053 | tpg->lport = lport; | |
1054 | tpg->lport_tpgt = tpgt; | |
1055 | /* | |
1056 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1057 | * NodeACLs | |
1058 | */ | |
a309f489 AG |
1059 | tpg->tpg_attrib.generate_node_acls = 1; |
1060 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1061 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1062 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
54a5e73f | 1063 | tpg->tpg_attrib.jam_host = 0; |
75f8c1f6 | 1064 | |
bc0c94b1 | 1065 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1066 | if (ret < 0) { |
1067 | kfree(tpg); | |
1068 | return NULL; | |
1069 | } | |
0e8cd71c SK |
1070 | |
1071 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1072 | |
1073 | return &tpg->se_tpg; | |
1074 | } | |
1075 | ||
1076 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1077 | { | |
1078 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1079 | struct tcm_qla2xxx_tpg, se_tpg); | |
1080 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1081 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1082 | /* |
1083 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1084 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1085 | */ | |
0e8cd71c SK |
1086 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1087 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1088 | |
1089 | core_tpg_deregister(se_tpg); | |
1090 | /* | |
1091 | * Clear local TPG=1 pointer for non NPIV mode. | |
1092 | */ | |
394d62ba | 1093 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1094 | kfree(tpg); |
1095 | } | |
1096 | ||
2eafd729 CH |
1097 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, |
1098 | char *page) | |
394d62ba | 1099 | { |
2eafd729 | 1100 | return tcm_qla2xxx_tpg_enable_show(item, page); |
394d62ba NB |
1101 | } |
1102 | ||
2eafd729 CH |
1103 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, |
1104 | const char *page, size_t count) | |
394d62ba | 1105 | { |
2eafd729 | 1106 | struct se_portal_group *se_tpg = to_tpg(item); |
394d62ba NB |
1107 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
1108 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1109 | struct tcm_qla2xxx_lport, lport_wwn); | |
1110 | struct scsi_qla_host *vha = lport->qla_vha; | |
1111 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1112 | struct tcm_qla2xxx_tpg, se_tpg); | |
1113 | unsigned long op; | |
1114 | int rc; | |
1115 | ||
1116 | rc = kstrtoul(page, 0, &op); | |
1117 | if (rc < 0) { | |
1118 | pr_err("kstrtoul() returned %d\n", rc); | |
1119 | return -EINVAL; | |
1120 | } | |
1121 | if ((op != 1) && (op != 0)) { | |
1122 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1123 | return -EINVAL; | |
1124 | } | |
1125 | if (op) { | |
1126 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1127 | return -EEXIST; | |
1128 | ||
1129 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1130 | qlt_enable_vha(vha); | |
1131 | } else { | |
1132 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1133 | return count; | |
1134 | ||
1135 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1136 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1137 | } | |
1138 | ||
1139 | return count; | |
1140 | } | |
1141 | ||
2eafd729 | 1142 | CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); |
394d62ba NB |
1143 | |
1144 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
2eafd729 | 1145 | &tcm_qla2xxx_npiv_tpg_attr_enable, |
394d62ba NB |
1146 | NULL, |
1147 | }; | |
1148 | ||
75f8c1f6 NB |
1149 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1150 | struct se_wwn *wwn, | |
1151 | struct config_group *group, | |
1152 | const char *name) | |
1153 | { | |
1154 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1155 | struct tcm_qla2xxx_lport, lport_wwn); | |
1156 | struct tcm_qla2xxx_tpg *tpg; | |
1157 | unsigned long tpgt; | |
1158 | int ret; | |
1159 | ||
1160 | if (strstr(name, "tpgt_") != name) | |
1161 | return ERR_PTR(-EINVAL); | |
1162 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1163 | return ERR_PTR(-EINVAL); | |
1164 | ||
1165 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1166 | if (!tpg) { | |
1167 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1168 | return ERR_PTR(-ENOMEM); | |
1169 | } | |
1170 | tpg->lport = lport; | |
1171 | tpg->lport_tpgt = tpgt; | |
1172 | ||
0e8cd71c SK |
1173 | /* |
1174 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1175 | * NodeACLs | |
1176 | */ | |
1177 | tpg->tpg_attrib.generate_node_acls = 1; | |
1178 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1179 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1180 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1181 | ||
bc0c94b1 | 1182 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1183 | if (ret < 0) { |
1184 | kfree(tpg); | |
1185 | return NULL; | |
1186 | } | |
0e8cd71c | 1187 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1188 | return &tpg->se_tpg; |
1189 | } | |
1190 | ||
1191 | /* | |
7560151b | 1192 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1193 | */ |
5d964837 | 1194 | static struct fc_port *tcm_qla2xxx_find_sess_by_s_id( |
75f8c1f6 NB |
1195 | scsi_qla_host_t *vha, |
1196 | const uint8_t *s_id) | |
1197 | { | |
75f8c1f6 NB |
1198 | struct tcm_qla2xxx_lport *lport; |
1199 | struct se_node_acl *se_nacl; | |
1200 | struct tcm_qla2xxx_nacl *nacl; | |
1201 | u32 key; | |
1202 | ||
0e8cd71c | 1203 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1204 | if (!lport) { |
1205 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1206 | dump_stack(); | |
1207 | return NULL; | |
1208 | } | |
1209 | ||
8b2f5ff3 | 1210 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1211 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
1212 | ||
1213 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1214 | if (!se_nacl) { | |
1215 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1216 | return NULL; | |
1217 | } | |
1218 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1219 | se_nacl, se_nacl->initiatorname); | |
1220 | ||
1221 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 QT |
1222 | if (!nacl->fc_port) { |
1223 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1224 | return NULL; |
1225 | } | |
1226 | ||
5d964837 | 1227 | return nacl->fc_port; |
75f8c1f6 NB |
1228 | } |
1229 | ||
1230 | /* | |
7560151b | 1231 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1232 | */ |
1233 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1234 | struct tcm_qla2xxx_lport *lport, | |
1235 | struct se_node_acl *new_se_nacl, | |
1236 | struct tcm_qla2xxx_nacl *nacl, | |
1237 | struct se_session *se_sess, | |
5d964837 | 1238 | struct fc_port *fc_port, |
75f8c1f6 NB |
1239 | uint8_t *s_id) |
1240 | { | |
1241 | u32 key; | |
1242 | void *slot; | |
1243 | int rc; | |
1244 | ||
8b2f5ff3 | 1245 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1246 | pr_debug("set_sess_by_s_id: %06x\n", key); |
1247 | ||
1248 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1249 | if (!slot) { | |
1250 | if (new_se_nacl) { | |
1251 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1252 | nacl->nport_id = key; | |
1253 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1254 | new_se_nacl, GFP_ATOMIC); | |
1255 | if (rc) | |
1256 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1257 | (int)key); | |
1258 | } else { | |
1259 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1260 | } | |
1261 | ||
5d964837 QT |
1262 | fc_port->se_sess = se_sess; |
1263 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1264 | return; |
1265 | } | |
1266 | ||
5d964837 | 1267 | if (nacl->fc_port) { |
75f8c1f6 | 1268 | if (new_se_nacl == NULL) { |
5d964837 | 1269 | pr_debug("Clearing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1270 | btree_remove32(&lport->lport_fcport_map, key); |
5d964837 | 1271 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1272 | return; |
1273 | } | |
5d964837 | 1274 | pr_debug("Replacing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1275 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1276 | fc_port->se_sess = se_sess; |
1277 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1278 | return; |
1279 | } | |
1280 | ||
1281 | if (new_se_nacl == NULL) { | |
1282 | pr_debug("Clearing existing fc_port entry\n"); | |
1283 | btree_remove32(&lport->lport_fcport_map, key); | |
1284 | return; | |
1285 | } | |
1286 | ||
5d964837 | 1287 | pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n"); |
75f8c1f6 | 1288 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1289 | fc_port->se_sess = se_sess; |
1290 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1291 | |
5d964837 QT |
1292 | pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n", |
1293 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1294 | } |
1295 | ||
1296 | /* | |
7560151b | 1297 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1298 | */ |
5d964837 | 1299 | static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id( |
75f8c1f6 NB |
1300 | scsi_qla_host_t *vha, |
1301 | const uint16_t loop_id) | |
1302 | { | |
75f8c1f6 NB |
1303 | struct tcm_qla2xxx_lport *lport; |
1304 | struct se_node_acl *se_nacl; | |
1305 | struct tcm_qla2xxx_nacl *nacl; | |
1306 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1307 | ||
0e8cd71c | 1308 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1309 | if (!lport) { |
1310 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1311 | dump_stack(); | |
1312 | return NULL; | |
1313 | } | |
1314 | ||
1315 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1316 | ||
1317 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1318 | se_nacl = fc_loopid->se_nacl; | |
1319 | if (!se_nacl) { | |
1320 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1321 | loop_id); | |
1322 | return NULL; | |
1323 | } | |
1324 | ||
1325 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1326 | ||
5d964837 QT |
1327 | if (!nacl->fc_port) { |
1328 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1329 | return NULL; |
1330 | } | |
1331 | ||
5d964837 | 1332 | return nacl->fc_port; |
75f8c1f6 NB |
1333 | } |
1334 | ||
1335 | /* | |
7560151b | 1336 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1337 | */ |
1338 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1339 | struct tcm_qla2xxx_lport *lport, | |
1340 | struct se_node_acl *new_se_nacl, | |
1341 | struct tcm_qla2xxx_nacl *nacl, | |
1342 | struct se_session *se_sess, | |
5d964837 | 1343 | struct fc_port *fc_port, |
75f8c1f6 NB |
1344 | uint16_t loop_id) |
1345 | { | |
1346 | struct se_node_acl *saved_nacl; | |
1347 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1348 | ||
1349 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1350 | ||
1351 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1352 | lport->lport_loopid_map)[loop_id]; | |
1353 | ||
1354 | saved_nacl = fc_loopid->se_nacl; | |
1355 | if (!saved_nacl) { | |
1356 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1357 | fc_loopid->se_nacl = new_se_nacl; | |
5d964837 QT |
1358 | if (fc_port->se_sess != se_sess) |
1359 | fc_port->se_sess = se_sess; | |
1360 | if (nacl->fc_port != fc_port) | |
1361 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1362 | return; |
1363 | } | |
1364 | ||
5d964837 | 1365 | if (nacl->fc_port) { |
75f8c1f6 | 1366 | if (new_se_nacl == NULL) { |
5d964837 | 1367 | pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1368 | fc_loopid->se_nacl = NULL; |
5d964837 | 1369 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1370 | return; |
1371 | } | |
1372 | ||
5d964837 | 1373 | pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1374 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1375 | if (fc_port->se_sess != se_sess) |
1376 | fc_port->se_sess = se_sess; | |
1377 | if (nacl->fc_port != fc_port) | |
1378 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1379 | return; |
1380 | } | |
1381 | ||
1382 | if (new_se_nacl == NULL) { | |
1383 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1384 | fc_loopid->se_nacl = NULL; | |
1385 | return; | |
1386 | } | |
1387 | ||
5d964837 | 1388 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n"); |
75f8c1f6 | 1389 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1390 | if (fc_port->se_sess != se_sess) |
1391 | fc_port->se_sess = se_sess; | |
1392 | if (nacl->fc_port != fc_port) | |
1393 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1394 | |
5d964837 QT |
1395 | pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n", |
1396 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1397 | } |
1398 | ||
f2d5d9b9 | 1399 | /* |
7560151b | 1400 | * Should always be called with qla_hw_data->tgt.sess_lock held. |
f2d5d9b9 NB |
1401 | */ |
1402 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
5d964837 | 1403 | struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess) |
f2d5d9b9 NB |
1404 | { |
1405 | struct se_session *se_sess = sess->se_sess; | |
1406 | unsigned char be_sid[3]; | |
1407 | ||
37cacc0a QT |
1408 | be_sid[0] = sess->d_id.b.domain; |
1409 | be_sid[1] = sess->d_id.b.area; | |
1410 | be_sid[2] = sess->d_id.b.al_pa; | |
f2d5d9b9 NB |
1411 | |
1412 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1413 | sess, be_sid); | |
1414 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1415 | sess, sess->loop_id); | |
1416 | } | |
1417 | ||
5d964837 | 1418 | static void tcm_qla2xxx_free_session(struct fc_port *sess) |
75f8c1f6 NB |
1419 | { |
1420 | struct qla_tgt *tgt = sess->tgt; | |
1421 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1422 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 | 1423 | struct se_session *se_sess; |
75f8c1f6 | 1424 | struct tcm_qla2xxx_lport *lport; |
75f8c1f6 NB |
1425 | |
1426 | BUG_ON(in_interrupt()); | |
1427 | ||
1428 | se_sess = sess->se_sess; | |
1429 | if (!se_sess) { | |
5d964837 | 1430 | pr_err("struct fc_port->se_sess is NULL\n"); |
75f8c1f6 NB |
1431 | dump_stack(); |
1432 | return; | |
1433 | } | |
75f8c1f6 | 1434 | |
0e8cd71c | 1435 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1436 | if (!lport) { |
1437 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1438 | dump_stack(); | |
1439 | return; | |
1440 | } | |
be646c2d | 1441 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1442 | |
1443 | transport_deregister_session_configfs(sess->se_sess); | |
1444 | transport_deregister_session(sess->se_sess); | |
1445 | } | |
1446 | ||
1b655b19 NB |
1447 | static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg, |
1448 | struct se_session *se_sess, void *p) | |
1449 | { | |
1450 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1451 | struct tcm_qla2xxx_tpg, se_tpg); | |
1452 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1453 | struct qla_hw_data *ha = lport->qla_vha->hw; | |
1454 | struct se_node_acl *se_nacl = se_sess->se_node_acl; | |
1455 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1456 | struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 | 1457 | struct fc_port *qlat_sess = p; |
1b655b19 NB |
1458 | uint16_t loop_id = qlat_sess->loop_id; |
1459 | unsigned long flags; | |
1460 | unsigned char be_sid[3]; | |
1461 | ||
37cacc0a QT |
1462 | be_sid[0] = qlat_sess->d_id.b.domain; |
1463 | be_sid[1] = qlat_sess->d_id.b.area; | |
1464 | be_sid[2] = qlat_sess->d_id.b.al_pa; | |
1b655b19 NB |
1465 | |
1466 | /* | |
1467 | * And now setup se_nacl and session pointers into HW lport internal | |
1468 | * mappings for fabric S_ID and LOOP_ID. | |
1469 | */ | |
1470 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1471 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, | |
1472 | se_sess, qlat_sess, be_sid); | |
1473 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, | |
1474 | se_sess, qlat_sess, loop_id); | |
1475 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1476 | ||
1477 | return 0; | |
1478 | } | |
1479 | ||
75f8c1f6 NB |
1480 | /* |
1481 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1482 | * to locate struct se_node_acl | |
1483 | */ | |
1484 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1485 | scsi_qla_host_t *vha, | |
1486 | unsigned char *fc_wwpn, | |
5d964837 | 1487 | struct fc_port *qlat_sess) |
75f8c1f6 NB |
1488 | { |
1489 | struct qla_hw_data *ha = vha->hw; | |
1490 | struct tcm_qla2xxx_lport *lport; | |
1491 | struct tcm_qla2xxx_tpg *tpg; | |
75f8c1f6 | 1492 | struct se_session *se_sess; |
75f8c1f6 | 1493 | unsigned char port_name[36]; |
03e8c680 | 1494 | int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count : |
51a07f84 | 1495 | TCM_QLA2XXX_DEFAULT_TAGS; |
75f8c1f6 | 1496 | |
0e8cd71c | 1497 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1498 | if (!lport) { |
1499 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1500 | dump_stack(); | |
1501 | return -EINVAL; | |
1502 | } | |
1503 | /* | |
1504 | * Locate the TPG=1 reference.. | |
1505 | */ | |
1506 | tpg = lport->tpg_1; | |
1507 | if (!tpg) { | |
1508 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1509 | return -EINVAL; | |
1510 | } | |
75f8c1f6 NB |
1511 | /* |
1512 | * Format the FCP Initiator port_name into colon seperated values to | |
1513 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1514 | */ | |
1515 | memset(&port_name, 0, 36); | |
3c9786e5 | 1516 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1517 | /* |
1518 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1519 | * via ConfigFS, or via running in TPG demo mode. | |
1520 | */ | |
1b655b19 NB |
1521 | se_sess = target_alloc_session(&tpg->se_tpg, num_tags, |
1522 | sizeof(struct qla_tgt_cmd), | |
1523 | TARGET_PROT_ALL, port_name, | |
1524 | qlat_sess, tcm_qla2xxx_session_cb); | |
1525 | if (IS_ERR(se_sess)) | |
1526 | return PTR_ERR(se_sess); | |
75f8c1f6 NB |
1527 | |
1528 | return 0; | |
1529 | } | |
1530 | ||
5d964837 | 1531 | static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id, |
c8292d1d RD |
1532 | uint16_t loop_id, bool conf_compl_supported) |
1533 | { | |
1534 | struct qla_tgt *tgt = sess->tgt; | |
1535 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1536 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1537 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1538 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1539 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1540 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1541 | u32 key; | |
1542 | ||
1543 | ||
37cacc0a | 1544 | if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24) |
7b833558 OK |
1545 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1546 | sess, sess->port_name, | |
37cacc0a QT |
1547 | sess->loop_id, loop_id, sess->d_id.b.domain, |
1548 | sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain, | |
7b833558 | 1549 | s_id.b.area, s_id.b.al_pa); |
c8292d1d RD |
1550 | |
1551 | if (sess->loop_id != loop_id) { | |
1552 | /* | |
1553 | * Because we can shuffle loop IDs around and we | |
1554 | * update different sessions non-atomically, we might | |
1555 | * have overwritten this session's old loop ID | |
1556 | * already, and we might end up overwriting some other | |
1557 | * session that will be updated later. So we have to | |
1558 | * be extra careful and we can't warn about those things... | |
1559 | */ | |
1560 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1561 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1562 | ||
1563 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1564 | ||
1565 | sess->loop_id = loop_id; | |
1566 | } | |
1567 | ||
37cacc0a QT |
1568 | if (sess->d_id.b24 != s_id.b24) { |
1569 | key = (((u32) sess->d_id.b.domain << 16) | | |
1570 | ((u32) sess->d_id.b.area << 8) | | |
1571 | ((u32) sess->d_id.b.al_pa)); | |
c8292d1d RD |
1572 | |
1573 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
37cacc0a QT |
1574 | WARN(btree_remove32(&lport->lport_fcport_map, key) != |
1575 | se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1576 | sess->d_id.b.domain, sess->d_id.b.area, | |
1577 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1578 | else |
1579 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
37cacc0a QT |
1580 | sess->d_id.b.domain, sess->d_id.b.area, |
1581 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1582 | |
1583 | key = (((u32) s_id.b.domain << 16) | | |
1584 | ((u32) s_id.b.area << 8) | | |
1585 | ((u32) s_id.b.al_pa)); | |
1586 | ||
1587 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1588 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1589 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1590 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1591 | } else { | |
37cacc0a QT |
1592 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, |
1593 | GFP_ATOMIC); | |
c8292d1d RD |
1594 | } |
1595 | ||
37cacc0a | 1596 | sess->d_id = s_id; |
c8292d1d RD |
1597 | nacl->nport_id = key; |
1598 | } | |
1599 | ||
1600 | sess->conf_compl_supported = conf_compl_supported; | |
a6ca8878 AP |
1601 | |
1602 | /* Reset logout parameters to default */ | |
1603 | sess->logout_on_delete = 1; | |
1604 | sess->keep_nport_handle = 0; | |
c8292d1d RD |
1605 | } |
1606 | ||
75f8c1f6 NB |
1607 | /* |
1608 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1609 | */ | |
1610 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1611 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1612 | .handle_data = tcm_qla2xxx_handle_data, | |
1613 | .handle_tmr = tcm_qla2xxx_handle_tmr, | |
1614 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1615 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1616 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1617 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1618 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1619 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1620 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1621 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
5d964837 | 1622 | .put_sess = tcm_qla2xxx_put_sess, |
75f8c1f6 | 1623 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
be25152c QT |
1624 | .get_dif_tags = tcm_qla2xxx_dif_tags, |
1625 | .chk_dif_tags = tcm_qla2xxx_chk_dif_tags, | |
75f8c1f6 NB |
1626 | }; |
1627 | ||
1628 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1629 | { | |
1630 | int rc; | |
1631 | ||
1632 | rc = btree_init32(&lport->lport_fcport_map); | |
1633 | if (rc) { | |
1634 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1635 | return rc; | |
1636 | } | |
1637 | ||
1638 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1639 | 65536); | |
1640 | if (!lport->lport_loopid_map) { | |
1641 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1642 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1643 | btree_destroy32(&lport->lport_fcport_map); | |
1644 | return -ENOMEM; | |
1645 | } | |
1646 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1647 | * 65536); | |
1648 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1649 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1650 | return 0; | |
1651 | } | |
1652 | ||
49a47f2c NB |
1653 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1654 | void *target_lport_ptr, | |
1655 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1656 | { |
49a47f2c NB |
1657 | struct qla_hw_data *ha = vha->hw; |
1658 | struct tcm_qla2xxx_lport *lport = | |
1659 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1660 | /* |
49a47f2c | 1661 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1662 | */ |
49a47f2c NB |
1663 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1664 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1665 | lport->qla_vha = vha; |
1666 | ||
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1671 | struct target_fabric_configfs *tf, | |
1672 | struct config_group *group, | |
1673 | const char *name) | |
1674 | { | |
1675 | struct tcm_qla2xxx_lport *lport; | |
1676 | u64 wwpn; | |
1677 | int ret = -ENODEV; | |
1678 | ||
1679 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1680 | return ERR_PTR(-EINVAL); | |
1681 | ||
1682 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1683 | if (!lport) { | |
1684 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1685 | return ERR_PTR(-ENOMEM); | |
1686 | } | |
1687 | lport->lport_wwpn = wwpn; | |
1688 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1689 | wwpn); | |
c046aa0f | 1690 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1691 | |
1692 | ret = tcm_qla2xxx_init_lport(lport); | |
1693 | if (ret != 0) | |
1694 | goto out; | |
1695 | ||
49a47f2c NB |
1696 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1697 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1698 | if (ret != 0) |
1699 | goto out_lport; | |
1700 | ||
1701 | return &lport->lport_wwn; | |
1702 | out_lport: | |
1703 | vfree(lport->lport_loopid_map); | |
1704 | btree_destroy32(&lport->lport_fcport_map); | |
1705 | out: | |
1706 | kfree(lport); | |
1707 | return ERR_PTR(ret); | |
1708 | } | |
1709 | ||
1710 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1711 | { | |
1712 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1713 | struct tcm_qla2xxx_lport, lport_wwn); | |
1714 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1715 | struct se_node_acl *node; |
1716 | u32 key = 0; | |
1717 | ||
1718 | /* | |
1719 | * Call into qla2x_target.c LLD logic to complete the | |
1720 | * shutdown of struct qla_tgt after the call to | |
1721 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1722 | */ | |
0e8cd71c SK |
1723 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1724 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1725 | |
1726 | qlt_lport_deregister(vha); | |
1727 | ||
1728 | vfree(lport->lport_loopid_map); | |
1729 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1730 | btree_remove32(&lport->lport_fcport_map, key); | |
1731 | btree_destroy32(&lport->lport_fcport_map); | |
1732 | kfree(lport); | |
1733 | } | |
1734 | ||
49a47f2c NB |
1735 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1736 | void *target_lport_ptr, | |
1737 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1738 | { | |
1739 | struct fc_vport *vport; | |
1740 | struct Scsi_Host *sh = base_vha->host; | |
1741 | struct scsi_qla_host *npiv_vha; | |
1742 | struct tcm_qla2xxx_lport *lport = | |
1743 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1744 | struct tcm_qla2xxx_lport *base_lport = |
1745 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
49a47f2c NB |
1746 | struct fc_vport_identifiers vport_id; |
1747 | ||
ead03855 | 1748 | if (qla_ini_mode_enabled(base_vha)) { |
49a47f2c NB |
1749 | pr_err("qla2xxx base_vha not enabled for target mode\n"); |
1750 | return -EPERM; | |
1751 | } | |
1752 | ||
7474f52a NB |
1753 | if (!base_lport || !base_lport->tpg_1 || |
1754 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1755 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1756 | return -EPERM; | |
1757 | } | |
7474f52a | 1758 | |
49a47f2c NB |
1759 | memset(&vport_id, 0, sizeof(vport_id)); |
1760 | vport_id.port_name = npiv_wwpn; | |
1761 | vport_id.node_name = npiv_wwnn; | |
1762 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1763 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1764 | vport_id.disable = false; | |
1765 | ||
1766 | vport = fc_vport_create(sh, 0, &vport_id); | |
1767 | if (!vport) { | |
1768 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1769 | return -ENODEV; | |
1770 | } | |
1771 | /* | |
1772 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1773 | */ | |
1774 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1775 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1776 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1777 | scsi_host_get(npiv_vha->host); |
1778 | return 0; | |
1779 | } | |
1780 | ||
1781 | ||
75f8c1f6 NB |
1782 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1783 | struct target_fabric_configfs *tf, | |
1784 | struct config_group *group, | |
1785 | const char *name) | |
1786 | { | |
1787 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1788 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1789 | char *p, tmp[128]; | |
75f8c1f6 NB |
1790 | int ret; |
1791 | ||
49a47f2c NB |
1792 | snprintf(tmp, 128, "%s", name); |
1793 | ||
1794 | p = strchr(tmp, '@'); | |
1795 | if (!p) { | |
669a311b | 1796 | pr_err("Unable to locate NPIV '@' separator\n"); |
49a47f2c NB |
1797 | return ERR_PTR(-EINVAL); |
1798 | } | |
1799 | *p++ = '\0'; | |
1800 | ||
1801 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1802 | return ERR_PTR(-EINVAL); | |
1803 | ||
1804 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1805 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1806 | return ERR_PTR(-EINVAL); |
1807 | ||
1808 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1809 | if (!lport) { | |
1810 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1811 | return ERR_PTR(-ENOMEM); | |
1812 | } | |
1813 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1814 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1815 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1816 | |
0e8cd71c | 1817 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1818 | if (ret != 0) |
1819 | goto out; | |
1820 | ||
49a47f2c NB |
1821 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1822 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1823 | if (ret != 0) |
1824 | goto out_lport; | |
1825 | ||
75f8c1f6 | 1826 | return &lport->lport_wwn; |
0e8cd71c SK |
1827 | out_lport: |
1828 | vfree(lport->lport_loopid_map); | |
1829 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1830 | out: |
1831 | kfree(lport); | |
1832 | return ERR_PTR(ret); | |
1833 | } | |
1834 | ||
1835 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1836 | { | |
1837 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1838 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1839 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1840 | struct qla_hw_data *ha = npiv_vha->hw; | |
1841 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1842 | ||
1843 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1844 | /* |
0e8cd71c | 1845 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1846 | */ |
49a47f2c NB |
1847 | fc_vport_terminate(npiv_vha->fc_vport); |
1848 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1849 | kfree(lport); |
1850 | } | |
1851 | ||
1852 | ||
2eafd729 CH |
1853 | static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, |
1854 | char *page) | |
75f8c1f6 NB |
1855 | { |
1856 | return sprintf(page, | |
49541a04 JB |
1857 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n", |
1858 | QLA2XXX_VERSION, utsname()->sysname, | |
1859 | utsname()->machine, utsname()->release); | |
75f8c1f6 NB |
1860 | } |
1861 | ||
2eafd729 | 1862 | CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); |
75f8c1f6 NB |
1863 | |
1864 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
2eafd729 | 1865 | &tcm_qla2xxx_wwn_attr_version, |
75f8c1f6 NB |
1866 | NULL, |
1867 | }; | |
1868 | ||
9ac8928e CH |
1869 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1870 | .module = THIS_MODULE, | |
1871 | .name = "qla2xxx", | |
144bc4c2 | 1872 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
8f9b5654 NB |
1873 | /* |
1874 | * XXX: Limit assumes single page per scatter-gather-list entry. | |
1875 | * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096 | |
1876 | */ | |
1877 | .max_data_sg_nents = 1200, | |
75f8c1f6 | 1878 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
75f8c1f6 NB |
1879 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1880 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1881 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1882 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1883 | .tpg_check_demo_mode_write_protect = | |
1884 | tcm_qla2xxx_check_demo_write_protect, | |
1885 | .tpg_check_prod_mode_write_protect = | |
1886 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1887 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1888 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1889 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1890 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1891 | .release_cmd = tcm_qla2xxx_release_cmd, | |
75f8c1f6 NB |
1892 | .close_session = tcm_qla2xxx_close_session, |
1893 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1894 | .sess_get_initiator_sid = NULL, | |
1895 | .write_pending = tcm_qla2xxx_write_pending, | |
1896 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1897 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1898 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1899 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1900 | .queue_status = tcm_qla2xxx_queue_status, | |
1901 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1902 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1903 | /* |
1904 | * Setup function pointers for generic logic in | |
1905 | * target_core_fabric_configfs.c | |
1906 | */ | |
1907 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1908 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1909 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1910 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1911 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1912 | |
1913 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1914 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1915 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1916 | }; |
1917 | ||
9ac8928e CH |
1918 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1919 | .module = THIS_MODULE, | |
1920 | .name = "qla2xxx_npiv", | |
144bc4c2 | 1921 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1922 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
84197a36 | 1923 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1924 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
0e8cd71c SK |
1925 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1926 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1927 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1928 | .tpg_check_prod_mode_write_protect = | |
1929 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1930 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1931 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1932 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 1933 | .release_cmd = tcm_qla2xxx_release_cmd, |
75f8c1f6 NB |
1934 | .close_session = tcm_qla2xxx_close_session, |
1935 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1936 | .sess_get_initiator_sid = NULL, | |
1937 | .write_pending = tcm_qla2xxx_write_pending, | |
1938 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1939 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1940 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1941 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1942 | .queue_status = tcm_qla2xxx_queue_status, | |
1943 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1944 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1945 | /* |
1946 | * Setup function pointers for generic logic in | |
1947 | * target_core_fabric_configfs.c | |
1948 | */ | |
1949 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1950 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1951 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1952 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1953 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1954 | |
1955 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1956 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
1957 | }; |
1958 | ||
1959 | static int tcm_qla2xxx_register_configfs(void) | |
1960 | { | |
75f8c1f6 NB |
1961 | int ret; |
1962 | ||
49541a04 JB |
1963 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n", |
1964 | QLA2XXX_VERSION, utsname()->sysname, | |
1965 | utsname()->machine, utsname()->release); | |
9ac8928e CH |
1966 | |
1967 | ret = target_register_template(&tcm_qla2xxx_ops); | |
1968 | if (ret) | |
75f8c1f6 | 1969 | return ret; |
75f8c1f6 | 1970 | |
9ac8928e CH |
1971 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
1972 | if (ret) | |
75f8c1f6 | 1973 | goto out_fabric; |
75f8c1f6 NB |
1974 | |
1975 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
1976 | WQ_MEM_RECLAIM, 0); | |
1977 | if (!tcm_qla2xxx_free_wq) { | |
1978 | ret = -ENOMEM; | |
1979 | goto out_fabric_npiv; | |
1980 | } | |
1981 | ||
1982 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
1983 | if (!tcm_qla2xxx_cmd_wq) { | |
1984 | ret = -ENOMEM; | |
1985 | goto out_free_wq; | |
1986 | } | |
1987 | ||
1988 | return 0; | |
1989 | ||
1990 | out_free_wq: | |
1991 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
1992 | out_fabric_npiv: | |
9ac8928e | 1993 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 1994 | out_fabric: |
9ac8928e | 1995 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
1996 | return ret; |
1997 | } | |
1998 | ||
1999 | static void tcm_qla2xxx_deregister_configfs(void) | |
2000 | { | |
2001 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
2002 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2003 | ||
9ac8928e CH |
2004 | target_unregister_template(&tcm_qla2xxx_ops); |
2005 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
2006 | } |
2007 | ||
2008 | static int __init tcm_qla2xxx_init(void) | |
2009 | { | |
2010 | int ret; | |
2011 | ||
2012 | ret = tcm_qla2xxx_register_configfs(); | |
2013 | if (ret < 0) | |
2014 | return ret; | |
2015 | ||
2016 | return 0; | |
2017 | } | |
2018 | ||
2019 | static void __exit tcm_qla2xxx_exit(void) | |
2020 | { | |
2021 | tcm_qla2xxx_deregister_configfs(); | |
2022 | } | |
2023 | ||
24c7d6c7 | 2024 | MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver"); |
75f8c1f6 NB |
2025 | MODULE_LICENSE("GPL"); |
2026 | module_init(tcm_qla2xxx_init); | |
2027 | module_exit(tcm_qla2xxx_exit); |