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75f8c1f6 NB |
1 | /******************************************************************************* |
2 | * This file contains tcm implementation using v4 configfs fabric infrastructure | |
3 | * for QLogic target mode HBAs | |
4 | * | |
4c76251e | 5 | * (c) Copyright 2010-2013 Datera, Inc. |
75f8c1f6 | 6 | * |
4c76251e | 7 | * Author: Nicholas A. Bellinger <nab@daterainc.com> |
75f8c1f6 NB |
8 | * |
9 | * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from | |
10 | * the TCM_FC / Open-FCoE.org fabric module. | |
11 | * | |
12 | * Copyright (c) 2010 Cisco Systems, Inc | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | ****************************************************************************/ | |
24 | ||
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <generated/utsrelease.h> | |
29 | #include <linux/utsname.h> | |
5538d294 | 30 | #include <linux/vmalloc.h> |
75f8c1f6 NB |
31 | #include <linux/init.h> |
32 | #include <linux/list.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/kthread.h> | |
35 | #include <linux/types.h> | |
36 | #include <linux/string.h> | |
37 | #include <linux/configfs.h> | |
38 | #include <linux/ctype.h> | |
75f8c1f6 NB |
39 | #include <asm/unaligned.h> |
40 | #include <scsi/scsi.h> | |
41 | #include <scsi/scsi_host.h> | |
42 | #include <scsi/scsi_device.h> | |
43 | #include <scsi/scsi_cmnd.h> | |
44 | #include <target/target_core_base.h> | |
45 | #include <target/target_core_fabric.h> | |
75f8c1f6 NB |
46 | |
47 | #include "qla_def.h" | |
48 | #include "qla_target.h" | |
49 | #include "tcm_qla2xxx.h" | |
50 | ||
4d6609c4 HM |
51 | static struct workqueue_struct *tcm_qla2xxx_free_wq; |
52 | static struct workqueue_struct *tcm_qla2xxx_cmd_wq; | |
53 | ||
75f8c1f6 NB |
54 | /* |
55 | * Parse WWN. | |
56 | * If strict, we require lower-case hex and colon separators to be sure | |
57 | * the name is the same as what would be generated by ft_format_wwn() | |
58 | * so the name and wwn are mapped one-to-one. | |
59 | */ | |
60 | static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict) | |
61 | { | |
62 | const char *cp; | |
63 | char c; | |
64 | u32 nibble; | |
65 | u32 byte = 0; | |
66 | u32 pos = 0; | |
67 | u32 err; | |
68 | ||
69 | *wwn = 0; | |
70 | for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) { | |
71 | c = *cp; | |
72 | if (c == '\n' && cp[1] == '\0') | |
73 | continue; | |
74 | if (strict && pos++ == 2 && byte++ < 7) { | |
75 | pos = 0; | |
76 | if (c == ':') | |
77 | continue; | |
78 | err = 1; | |
79 | goto fail; | |
80 | } | |
81 | if (c == '\0') { | |
82 | err = 2; | |
83 | if (strict && byte != 8) | |
84 | goto fail; | |
85 | return cp - name; | |
86 | } | |
87 | err = 3; | |
88 | if (isdigit(c)) | |
89 | nibble = c - '0'; | |
90 | else if (isxdigit(c) && (islower(c) || !strict)) | |
91 | nibble = tolower(c) - 'a' + 10; | |
92 | else | |
93 | goto fail; | |
94 | *wwn = (*wwn << 4) | nibble; | |
95 | } | |
96 | err = 4; | |
97 | fail: | |
98 | pr_debug("err %u len %zu pos %u byte %u\n", | |
99 | err, cp - name, pos, byte); | |
100 | return -1; | |
101 | } | |
102 | ||
103 | static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn) | |
104 | { | |
105 | u8 b[8]; | |
106 | ||
107 | put_unaligned_be64(wwn, b); | |
108 | return snprintf(buf, len, | |
109 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
110 | b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); | |
111 | } | |
112 | ||
113 | static char *tcm_qla2xxx_get_fabric_name(void) | |
114 | { | |
115 | return "qla2xxx"; | |
116 | } | |
117 | ||
118 | /* | |
119 | * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn | |
120 | */ | |
121 | static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm) | |
122 | { | |
d4f75b56 | 123 | unsigned int i, j; |
75f8c1f6 NB |
124 | u8 wwn[8]; |
125 | ||
126 | memset(wwn, 0, sizeof(wwn)); | |
127 | ||
128 | /* Validate and store the new name */ | |
129 | for (i = 0, j = 0; i < 16; i++) { | |
d4f75b56 RD |
130 | int value; |
131 | ||
75f8c1f6 NB |
132 | value = hex_to_bin(*ns++); |
133 | if (value >= 0) | |
134 | j = (j << 4) | value; | |
135 | else | |
136 | return -EINVAL; | |
137 | ||
138 | if (i % 2) { | |
139 | wwn[i/2] = j & 0xff; | |
140 | j = 0; | |
141 | } | |
142 | } | |
143 | ||
144 | *nm = wwn_to_u64(wwn); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
149 | * This parsing logic follows drivers/scsi/scsi_transport_fc.c: | |
150 | * store_fc_host_vport_create() | |
151 | */ | |
152 | static int tcm_qla2xxx_npiv_parse_wwn( | |
153 | const char *name, | |
154 | size_t count, | |
155 | u64 *wwpn, | |
156 | u64 *wwnn) | |
157 | { | |
158 | unsigned int cnt = count; | |
159 | int rc; | |
160 | ||
161 | *wwpn = 0; | |
162 | *wwnn = 0; | |
163 | ||
164 | /* count may include a LF at end of string */ | |
0e8cd71c | 165 | if (name[cnt-1] == '\n' || name[cnt-1] == 0) |
75f8c1f6 NB |
166 | cnt--; |
167 | ||
168 | /* validate we have enough characters for WWPN */ | |
169 | if ((cnt != (16+1+16)) || (name[16] != ':')) | |
170 | return -EINVAL; | |
171 | ||
172 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn); | |
173 | if (rc != 0) | |
174 | return rc; | |
175 | ||
176 | rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn); | |
177 | if (rc != 0) | |
178 | return rc; | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
75f8c1f6 NB |
183 | static char *tcm_qla2xxx_npiv_get_fabric_name(void) |
184 | { | |
185 | return "qla2xxx_npiv"; | |
186 | } | |
187 | ||
75f8c1f6 NB |
188 | static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg) |
189 | { | |
190 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
191 | struct tcm_qla2xxx_tpg, se_tpg); | |
192 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
193 | ||
c046aa0f | 194 | return lport->lport_naa_name; |
75f8c1f6 NB |
195 | } |
196 | ||
75f8c1f6 NB |
197 | static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg) |
198 | { | |
199 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
200 | struct tcm_qla2xxx_tpg, se_tpg); | |
201 | return tpg->lport_tpgt; | |
202 | } | |
203 | ||
75f8c1f6 NB |
204 | static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) |
205 | { | |
206 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
207 | struct tcm_qla2xxx_tpg, se_tpg); | |
208 | ||
a309f489 | 209 | return tpg->tpg_attrib.generate_node_acls; |
75f8c1f6 NB |
210 | } |
211 | ||
212 | static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) | |
213 | { | |
214 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
215 | struct tcm_qla2xxx_tpg, se_tpg); | |
216 | ||
a309f489 | 217 | return tpg->tpg_attrib.cache_dynamic_acls; |
75f8c1f6 NB |
218 | } |
219 | ||
220 | static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) | |
221 | { | |
222 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
223 | struct tcm_qla2xxx_tpg, se_tpg); | |
224 | ||
a309f489 | 225 | return tpg->tpg_attrib.demo_mode_write_protect; |
75f8c1f6 NB |
226 | } |
227 | ||
228 | static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) | |
229 | { | |
230 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
231 | struct tcm_qla2xxx_tpg, se_tpg); | |
232 | ||
a309f489 | 233 | return tpg->tpg_attrib.prod_mode_write_protect; |
75f8c1f6 NB |
234 | } |
235 | ||
de04a8aa AG |
236 | static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) |
237 | { | |
238 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
239 | struct tcm_qla2xxx_tpg, se_tpg); | |
240 | ||
a309f489 | 241 | return tpg->tpg_attrib.demo_mode_login_only; |
de04a8aa AG |
242 | } |
243 | ||
64b16887 NB |
244 | static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg) |
245 | { | |
246 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
247 | struct tcm_qla2xxx_tpg, se_tpg); | |
248 | ||
249 | return tpg->tpg_attrib.fabric_prot_type; | |
250 | } | |
251 | ||
75f8c1f6 NB |
252 | static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg) |
253 | { | |
254 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
255 | struct tcm_qla2xxx_tpg, se_tpg); | |
256 | ||
257 | return tpg->lport_tpgt; | |
258 | } | |
259 | ||
260 | static void tcm_qla2xxx_complete_mcmd(struct work_struct *work) | |
261 | { | |
262 | struct qla_tgt_mgmt_cmd *mcmd = container_of(work, | |
263 | struct qla_tgt_mgmt_cmd, free_work); | |
264 | ||
265 | transport_generic_free_cmd(&mcmd->se_cmd, 0); | |
266 | } | |
267 | ||
268 | /* | |
269 | * Called from qla_target_template->free_mcmd(), and will call | |
270 | * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops | |
271 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
272 | */ | |
273 | static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
274 | { | |
275 | INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd); | |
276 | queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work); | |
277 | } | |
278 | ||
279 | static void tcm_qla2xxx_complete_free(struct work_struct *work) | |
280 | { | |
281 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
282 | ||
e07f8f65 SK |
283 | cmd->cmd_in_wq = 0; |
284 | ||
1eb42f96 | 285 | WARN_ON(cmd->trc_flags & TRC_CMD_FREE); |
e07f8f65 | 286 | |
ce1025cd | 287 | cmd->vha->tgt_counters.qla_core_ret_sta_ctio++; |
1eb42f96 | 288 | cmd->trc_flags |= TRC_CMD_FREE; |
75f8c1f6 NB |
289 | transport_generic_free_cmd(&cmd->se_cmd, 0); |
290 | } | |
291 | ||
292 | /* | |
293 | * Called from qla_target_template->free_cmd(), and will call | |
294 | * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops | |
295 | * release callback. qla_hw_data->hardware_lock is expected to be held | |
296 | */ | |
297 | static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) | |
298 | { | |
ce1025cd | 299 | cmd->vha->tgt_counters.core_qla_free_cmd++; |
e07f8f65 | 300 | cmd->cmd_in_wq = 1; |
a07100e0 | 301 | |
1eb42f96 QT |
302 | WARN_ON(cmd->trc_flags & TRC_CMD_DONE); |
303 | cmd->trc_flags |= TRC_CMD_DONE; | |
a07100e0 | 304 | |
75f8c1f6 | 305 | INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); |
fb3269ba | 306 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
307 | } |
308 | ||
309 | /* | |
310 | * Called from struct target_core_fabric_ops->check_stop_free() context | |
311 | */ | |
312 | static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) | |
313 | { | |
e07f8f65 SK |
314 | struct qla_tgt_cmd *cmd; |
315 | ||
316 | if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) { | |
317 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
1eb42f96 | 318 | cmd->trc_flags |= TRC_CMD_CHK_STOP; |
e07f8f65 SK |
319 | } |
320 | ||
afc16604 | 321 | return target_put_sess_cmd(se_cmd); |
75f8c1f6 NB |
322 | } |
323 | ||
324 | /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying | |
325 | * fabric descriptor @se_cmd command to release | |
326 | */ | |
327 | static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) | |
328 | { | |
329 | struct qla_tgt_cmd *cmd; | |
330 | ||
331 | if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { | |
332 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
333 | struct qla_tgt_mgmt_cmd, se_cmd); | |
334 | qlt_free_mcmd(mcmd); | |
335 | return; | |
336 | } | |
337 | ||
338 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
339 | qlt_free_cmd(cmd); | |
340 | } | |
341 | ||
5d964837 QT |
342 | static void tcm_qla2xxx_release_session(struct kref *kref) |
343 | { | |
344 | struct fc_port *sess = container_of(kref, | |
345 | struct fc_port, sess_kref); | |
346 | ||
347 | qlt_unreg_sess(sess); | |
348 | } | |
349 | ||
350 | static void tcm_qla2xxx_put_sess(struct fc_port *sess) | |
351 | { | |
352 | if (!sess) | |
353 | return; | |
354 | ||
355 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); | |
356 | kref_put(&sess->sess_kref, tcm_qla2xxx_release_session); | |
357 | } | |
358 | ||
75f8c1f6 NB |
359 | static void tcm_qla2xxx_close_session(struct se_session *se_sess) |
360 | { | |
5d964837 | 361 | struct fc_port *sess = se_sess->fabric_sess_ptr; |
75f8c1f6 NB |
362 | struct scsi_qla_host *vha; |
363 | unsigned long flags; | |
364 | ||
365 | BUG_ON(!sess); | |
366 | vha = sess->vha; | |
367 | ||
7560151b | 368 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
e3dc0e31 | 369 | target_sess_cmd_list_set_waiting(se_sess); |
5d964837 | 370 | tcm_qla2xxx_put_sess(sess); |
7560151b | 371 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
75f8c1f6 NB |
372 | } |
373 | ||
374 | static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) | |
375 | { | |
376 | return 0; | |
377 | } | |
378 | ||
75f8c1f6 NB |
379 | static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) |
380 | { | |
381 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
382 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
383 | |
384 | if (cmd->aborted) { | |
385 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
386 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
387 | * already kick start the free. | |
388 | */ | |
389 | pr_debug("write_pending aborted cmd[%p] refcount %d " | |
390 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 391 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
392 | cmd->se_cmd.transport_state, |
393 | cmd->se_cmd.t_state, | |
394 | cmd->se_cmd.se_cmd_flags); | |
395 | return 0; | |
396 | } | |
1eb42f96 | 397 | cmd->trc_flags |= TRC_XFR_RDY; |
75f8c1f6 | 398 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 399 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
400 | |
401 | cmd->sg_cnt = se_cmd->t_data_nents; | |
402 | cmd->sg = se_cmd->t_data_sg; | |
403 | ||
f83adb61 QT |
404 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
405 | cmd->prot_sg = se_cmd->t_prot_sg; | |
406 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
407 | se_cmd->pi_err = 0; | |
408 | ||
75f8c1f6 NB |
409 | /* |
410 | * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup | |
411 | * the SGL mappings into PCIe memory for incoming FCP WRITE data. | |
412 | */ | |
413 | return qlt_rdy_to_xfer(cmd); | |
414 | } | |
415 | ||
416 | static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd) | |
417 | { | |
418 | unsigned long flags; | |
419 | /* | |
420 | * Check for WRITE_PENDING status to determine if we need to wait for | |
421 | * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data(). | |
422 | */ | |
423 | spin_lock_irqsave(&se_cmd->t_state_lock, flags); | |
424 | if (se_cmd->t_state == TRANSPORT_WRITE_PENDING || | |
425 | se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) { | |
426 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
427 | wait_for_completion_timeout(&se_cmd->t_transport_stop_comp, | |
a07100e0 | 428 | 50); |
75f8c1f6 NB |
429 | return 0; |
430 | } | |
431 | spin_unlock_irqrestore(&se_cmd->t_state_lock, flags); | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl) | |
437 | { | |
438 | return; | |
439 | } | |
440 | ||
75f8c1f6 NB |
441 | static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd) |
442 | { | |
5155ce5f DKU |
443 | if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) { |
444 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
445 | struct qla_tgt_cmd, se_cmd); | |
446 | return cmd->state; | |
447 | } | |
448 | ||
75f8c1f6 NB |
449 | return 0; |
450 | } | |
451 | ||
452 | /* | |
453 | * Called from process context in qla_target.c:qlt_do_work() code | |
454 | */ | |
455 | static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
456 | unsigned char *cdb, uint32_t data_length, int fcp_task_attr, | |
457 | int data_dir, int bidi) | |
458 | { | |
459 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
460 | struct se_session *se_sess; | |
5d964837 | 461 | struct fc_port *sess; |
54a5e73f LO |
462 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
463 | struct se_portal_group *se_tpg; | |
464 | struct tcm_qla2xxx_tpg *tpg; | |
465 | #endif | |
75f8c1f6 NB |
466 | int flags = TARGET_SCF_ACK_KREF; |
467 | ||
468 | if (bidi) | |
469 | flags |= TARGET_SCF_BIDI_OP; | |
470 | ||
5327c7db QT |
471 | if (se_cmd->cpuid != WORK_CPU_UNBOUND) |
472 | flags |= TARGET_SCF_USE_CPUID; | |
473 | ||
75f8c1f6 NB |
474 | sess = cmd->sess; |
475 | if (!sess) { | |
5d964837 | 476 | pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n"); |
75f8c1f6 NB |
477 | return -EINVAL; |
478 | } | |
479 | ||
480 | se_sess = sess->se_sess; | |
481 | if (!se_sess) { | |
482 | pr_err("Unable to locate active struct se_session\n"); | |
483 | return -EINVAL; | |
484 | } | |
485 | ||
54a5e73f LO |
486 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
487 | se_tpg = se_sess->se_tpg; | |
488 | tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); | |
489 | if (unlikely(tpg->tpg_attrib.jam_host)) { | |
490 | /* return, and dont run target_submit_cmd,discarding command */ | |
491 | return 0; | |
492 | } | |
493 | #endif | |
494 | ||
ce1025cd | 495 | cmd->vha->tgt_counters.qla_core_sbt_cmd++; |
d6dfc868 | 496 | return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0], |
75f8c1f6 NB |
497 | cmd->unpacked_lun, data_length, fcp_task_attr, |
498 | data_dir, flags); | |
75f8c1f6 NB |
499 | } |
500 | ||
43381ce8 | 501 | static void tcm_qla2xxx_handle_data_work(struct work_struct *work) |
75f8c1f6 NB |
502 | { |
503 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
a07100e0 | 504 | unsigned long flags; |
75f8c1f6 | 505 | |
75f8c1f6 NB |
506 | /* |
507 | * Ensure that the complete FCP WRITE payload has been received. | |
508 | * Otherwise return an exception via CHECK_CONDITION status. | |
509 | */ | |
e07f8f65 | 510 | cmd->cmd_in_wq = 0; |
a07100e0 QT |
511 | |
512 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
1eb42f96 | 513 | cmd->data_work = 1; |
a07100e0 | 514 | if (cmd->aborted) { |
1eb42f96 | 515 | cmd->data_work_free = 1; |
a07100e0 QT |
516 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
517 | ||
518 | tcm_qla2xxx_free_cmd(cmd); | |
519 | return; | |
520 | } | |
521 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
522 | ||
ce1025cd | 523 | cmd->vha->tgt_counters.qla_core_ret_ctio++; |
75f8c1f6 NB |
524 | if (!cmd->write_data_transferred) { |
525 | /* | |
526 | * Check if se_cmd has already been aborted via LUN_RESET, and | |
527 | * waiting upon completion in tcm_qla2xxx_write_pending_status() | |
528 | */ | |
43381ce8 CH |
529 | if (cmd->se_cmd.transport_state & CMD_T_ABORTED) { |
530 | complete(&cmd->se_cmd.t_transport_stop_comp); | |
531 | return; | |
75f8c1f6 | 532 | } |
75f8c1f6 | 533 | |
be25152c QT |
534 | switch (cmd->dif_err_code) { |
535 | case DIF_ERR_GRD: | |
536 | cmd->se_cmd.pi_err = | |
537 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; | |
538 | break; | |
539 | case DIF_ERR_REF: | |
540 | cmd->se_cmd.pi_err = | |
541 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; | |
542 | break; | |
543 | case DIF_ERR_APP: | |
544 | cmd->se_cmd.pi_err = | |
545 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; | |
546 | break; | |
547 | case DIF_ERR_NONE: | |
548 | default: | |
549 | break; | |
550 | } | |
551 | ||
f83adb61 QT |
552 | if (cmd->se_cmd.pi_err) |
553 | transport_generic_request_failure(&cmd->se_cmd, | |
554 | cmd->se_cmd.pi_err); | |
555 | else | |
556 | transport_generic_request_failure(&cmd->se_cmd, | |
557 | TCM_CHECK_CONDITION_ABORT_CMD); | |
558 | ||
43381ce8 | 559 | return; |
75f8c1f6 | 560 | } |
43381ce8 CH |
561 | |
562 | return target_execute_cmd(&cmd->se_cmd); | |
563 | } | |
564 | ||
565 | /* | |
566 | * Called from qla_target.c:qlt_do_ctio_completion() | |
567 | */ | |
568 | static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) | |
569 | { | |
1eb42f96 | 570 | cmd->trc_flags |= TRC_DATA_IN; |
e07f8f65 | 571 | cmd->cmd_in_wq = 1; |
43381ce8 | 572 | INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); |
fb3269ba | 573 | queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); |
75f8c1f6 NB |
574 | } |
575 | ||
be25152c | 576 | static int tcm_qla2xxx_chk_dif_tags(uint32_t tag) |
f83adb61 | 577 | { |
be25152c | 578 | return 0; |
f83adb61 QT |
579 | } |
580 | ||
be25152c QT |
581 | static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd, |
582 | uint16_t *pfw_prot_opts) | |
f83adb61 | 583 | { |
be25152c QT |
584 | struct se_cmd *se_cmd = &cmd->se_cmd; |
585 | ||
586 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD)) | |
587 | *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK; | |
588 | ||
589 | if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG)) | |
590 | *pfw_prot_opts |= PO_DIS_APP_TAG_VALD; | |
591 | ||
592 | return 0; | |
f83adb61 QT |
593 | } |
594 | ||
75f8c1f6 NB |
595 | /* |
596 | * Called from qla_target.c:qlt_issue_task_mgmt() | |
597 | */ | |
f775bd14 | 598 | static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun, |
be92fc3f | 599 | uint16_t tmr_func, uint32_t tag) |
75f8c1f6 | 600 | { |
5d964837 | 601 | struct fc_port *sess = mcmd->sess; |
75f8c1f6 | 602 | struct se_cmd *se_cmd = &mcmd->se_cmd; |
be92fc3f QT |
603 | int transl_tmr_func = 0; |
604 | ||
605 | switch (tmr_func) { | |
606 | case QLA_TGT_ABTS: | |
607 | pr_debug("%ld: ABTS received\n", sess->vha->host_no); | |
608 | transl_tmr_func = TMR_ABORT_TASK; | |
609 | break; | |
610 | case QLA_TGT_2G_ABORT_TASK: | |
611 | pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no); | |
612 | transl_tmr_func = TMR_ABORT_TASK; | |
613 | break; | |
614 | case QLA_TGT_CLEAR_ACA: | |
615 | pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no); | |
616 | transl_tmr_func = TMR_CLEAR_ACA; | |
617 | break; | |
618 | case QLA_TGT_TARGET_RESET: | |
619 | pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no); | |
620 | transl_tmr_func = TMR_TARGET_WARM_RESET; | |
621 | break; | |
622 | case QLA_TGT_LUN_RESET: | |
623 | pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no); | |
624 | transl_tmr_func = TMR_LUN_RESET; | |
625 | break; | |
626 | case QLA_TGT_CLEAR_TS: | |
627 | pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no); | |
628 | transl_tmr_func = TMR_CLEAR_TASK_SET; | |
629 | break; | |
630 | case QLA_TGT_ABORT_TS: | |
631 | pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no); | |
632 | transl_tmr_func = TMR_ABORT_TASK_SET; | |
633 | break; | |
634 | default: | |
635 | pr_debug("%ld: Unknown task mgmt fn 0x%x\n", | |
636 | sess->vha->host_no, tmr_func); | |
637 | return -ENOSYS; | |
638 | } | |
75f8c1f6 NB |
639 | |
640 | return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd, | |
be92fc3f | 641 | transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF); |
75f8c1f6 NB |
642 | } |
643 | ||
644 | static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) | |
645 | { | |
646 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
647 | struct qla_tgt_cmd, se_cmd); | |
648 | ||
a07100e0 QT |
649 | if (cmd->aborted) { |
650 | /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
651 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
652 | * already kick start the free. | |
653 | */ | |
654 | pr_debug("queue_data_in aborted cmd[%p] refcount %d " | |
655 | "transport_state %x, t_state %x, se_cmd_flags %x\n", | |
2c935bc5 | 656 | cmd, kref_read(&cmd->se_cmd.cmd_kref), |
a07100e0 QT |
657 | cmd->se_cmd.transport_state, |
658 | cmd->se_cmd.t_state, | |
659 | cmd->se_cmd.se_cmd_flags); | |
660 | return 0; | |
661 | } | |
662 | ||
1eb42f96 | 663 | cmd->trc_flags |= TRC_XMIT_DATA; |
75f8c1f6 | 664 | cmd->bufflen = se_cmd->data_length; |
b3faa2e8 | 665 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
75f8c1f6 NB |
666 | |
667 | cmd->sg_cnt = se_cmd->t_data_nents; | |
668 | cmd->sg = se_cmd->t_data_sg; | |
669 | cmd->offset = 0; | |
670 | ||
f83adb61 QT |
671 | cmd->prot_sg_cnt = se_cmd->t_prot_nents; |
672 | cmd->prot_sg = se_cmd->t_prot_sg; | |
673 | cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size; | |
674 | se_cmd->pi_err = 0; | |
675 | ||
75f8c1f6 NB |
676 | /* |
677 | * Now queue completed DATA_IN the qla2xxx LLD and response ring | |
678 | */ | |
679 | return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS, | |
680 | se_cmd->scsi_status); | |
681 | } | |
682 | ||
683 | static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) | |
684 | { | |
685 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
686 | struct qla_tgt_cmd, se_cmd); | |
687 | int xmit_type = QLA_TGT_XMIT_STATUS; | |
688 | ||
694833ee QT |
689 | if (cmd->aborted) { |
690 | /* | |
691 | * Cmd can loop during Q-full. tcm_qla2xxx_aborted_task | |
692 | * can get ahead of this cmd. tcm_qla2xxx_aborted_task | |
693 | * already kick start the free. | |
694 | */ | |
695 | pr_debug( | |
696 | "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n", | |
697 | cmd, kref_read(&cmd->se_cmd.cmd_kref), | |
698 | cmd->se_cmd.transport_state, cmd->se_cmd.t_state, | |
699 | cmd->se_cmd.se_cmd_flags); | |
700 | return 0; | |
701 | } | |
75f8c1f6 NB |
702 | cmd->bufflen = se_cmd->data_length; |
703 | cmd->sg = NULL; | |
704 | cmd->sg_cnt = 0; | |
705 | cmd->offset = 0; | |
b3faa2e8 | 706 | cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); |
1eb42f96 QT |
707 | if (cmd->trc_flags & TRC_XMIT_STATUS) { |
708 | pr_crit("Multiple calls for status = %p.\n", cmd); | |
e07f8f65 SK |
709 | dump_stack(); |
710 | } | |
1eb42f96 | 711 | cmd->trc_flags |= TRC_XMIT_STATUS; |
75f8c1f6 NB |
712 | |
713 | if (se_cmd->data_direction == DMA_FROM_DEVICE) { | |
714 | /* | |
715 | * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen | |
716 | * for qla_tgt_xmit_response LLD code | |
717 | */ | |
b5aff3d2 RD |
718 | if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { |
719 | se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT; | |
720 | se_cmd->residual_count = 0; | |
721 | } | |
75f8c1f6 | 722 | se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT; |
b5aff3d2 | 723 | se_cmd->residual_count += se_cmd->data_length; |
75f8c1f6 NB |
724 | |
725 | cmd->bufflen = 0; | |
726 | } | |
727 | /* | |
728 | * Now queue status response to qla2xxx LLD code and response ring | |
729 | */ | |
730 | return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status); | |
731 | } | |
732 | ||
b79fafac | 733 | static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd) |
75f8c1f6 NB |
734 | { |
735 | struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; | |
736 | struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, | |
737 | struct qla_tgt_mgmt_cmd, se_cmd); | |
738 | ||
739 | pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n", | |
740 | mcmd, se_tmr->function, se_tmr->response); | |
741 | /* | |
742 | * Do translation between TCM TM response codes and | |
743 | * QLA2xxx FC TM response codes. | |
744 | */ | |
745 | switch (se_tmr->response) { | |
746 | case TMR_FUNCTION_COMPLETE: | |
747 | mcmd->fc_tm_rsp = FC_TM_SUCCESS; | |
748 | break; | |
749 | case TMR_TASK_DOES_NOT_EXIST: | |
750 | mcmd->fc_tm_rsp = FC_TM_BAD_CMD; | |
751 | break; | |
752 | case TMR_FUNCTION_REJECTED: | |
753 | mcmd->fc_tm_rsp = FC_TM_REJECT; | |
754 | break; | |
755 | case TMR_LUN_DOES_NOT_EXIST: | |
756 | default: | |
757 | mcmd->fc_tm_rsp = FC_TM_FAILED; | |
758 | break; | |
759 | } | |
760 | /* | |
761 | * Queue the TM response to QLA2xxx LLD to build a | |
762 | * CTIO response packet. | |
763 | */ | |
764 | qlt_xmit_tm_rsp(mcmd); | |
75f8c1f6 NB |
765 | } |
766 | ||
1eb42f96 | 767 | #define DATA_WORK_NOT_FREE(_cmd) (_cmd->data_work && !_cmd->data_work_free) |
131e6abc NB |
768 | static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd) |
769 | { | |
770 | struct qla_tgt_cmd *cmd = container_of(se_cmd, | |
771 | struct qla_tgt_cmd, se_cmd); | |
a07100e0 QT |
772 | unsigned long flags; |
773 | ||
774 | if (qlt_abort_cmd(cmd)) | |
775 | return; | |
776 | ||
777 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
778 | if ((cmd->state == QLA_TGT_STATE_NEW)|| | |
1eb42f96 QT |
779 | ((cmd->state == QLA_TGT_STATE_DATA_IN) && |
780 | DATA_WORK_NOT_FREE(cmd))) { | |
781 | cmd->data_work_free = 1; | |
a07100e0 | 782 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
1eb42f96 QT |
783 | /* |
784 | * cmd has not reached fw, Use this trigger to free it. | |
785 | */ | |
a07100e0 QT |
786 | tcm_qla2xxx_free_cmd(cmd); |
787 | return; | |
788 | } | |
789 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
790 | return; | |
791 | ||
131e6abc NB |
792 | } |
793 | ||
f2d5d9b9 | 794 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *, |
5d964837 | 795 | struct tcm_qla2xxx_nacl *, struct fc_port *); |
75f8c1f6 | 796 | /* |
7560151b | 797 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 798 | */ |
5d964837 | 799 | static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess) |
75f8c1f6 NB |
800 | { |
801 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; | |
802 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
803 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; | |
804 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
805 | struct tcm_qla2xxx_lport, lport_wwn); | |
806 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
807 | struct tcm_qla2xxx_nacl, se_node_acl); | |
808 | void *node; | |
809 | ||
810 | pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id); | |
811 | ||
812 | node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id); | |
f4c24db1 JE |
813 | if (WARN_ON(node && (node != se_nacl))) { |
814 | /* | |
815 | * The nacl no longer matches what we think it should be. | |
816 | * Most likely a new dynamic acl has been added while | |
817 | * someone dropped the hardware lock. It clearly is a | |
818 | * bug elsewhere, but this bit can't make things worse. | |
819 | */ | |
820 | btree_insert32(&lport->lport_fcport_map, nacl->nport_id, | |
821 | node, GFP_ATOMIC); | |
822 | } | |
75f8c1f6 NB |
823 | |
824 | pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n", | |
825 | se_nacl, nacl->nport_wwnn, nacl->nport_id); | |
f2d5d9b9 NB |
826 | /* |
827 | * Now clear the se_nacl and session pointers from our HW lport lookup | |
828 | * table mapping for this initiator's fabric S_ID and LOOP_ID entries. | |
829 | * | |
830 | * This is done ahead of callbacks into tcm_qla2xxx_free_session() -> | |
831 | * target_wait_for_sess_cmds() before the session waits for outstanding | |
832 | * I/O to complete, to avoid a race between session shutdown execution | |
833 | * and incoming ATIOs or TMRs picking up a stale se_node_act reference. | |
834 | */ | |
835 | tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess); | |
75f8c1f6 NB |
836 | } |
837 | ||
5d964837 | 838 | static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess) |
75f8c1f6 | 839 | { |
7560151b | 840 | assert_spin_locked(&sess->vha->hw->tgt.sess_lock); |
08234e3a | 841 | target_sess_cmd_list_set_waiting(sess->se_sess); |
75f8c1f6 NB |
842 | } |
843 | ||
c7d6a803 CH |
844 | static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, |
845 | const char *name) | |
75f8c1f6 | 846 | { |
c7d6a803 CH |
847 | struct tcm_qla2xxx_nacl *nacl = |
848 | container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
75f8c1f6 | 849 | u64 wwnn; |
75f8c1f6 NB |
850 | |
851 | if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0) | |
c7d6a803 | 852 | return -EINVAL; |
75f8c1f6 | 853 | |
75f8c1f6 NB |
854 | nacl->nport_wwnn = wwnn; |
855 | tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn); | |
75f8c1f6 | 856 | |
c7d6a803 | 857 | return 0; |
75f8c1f6 NB |
858 | } |
859 | ||
860 | /* Start items for tcm_qla2xxx_tpg_attrib_cit */ | |
861 | ||
862 | #define DEF_QLA_TPG_ATTRIB(name) \ | |
863 | \ | |
2eafd729 CH |
864 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ |
865 | struct config_item *item, char *page) \ | |
75f8c1f6 | 866 | { \ |
2eafd729 | 867 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
868 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
869 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
870 | \ | |
a309f489 | 871 | return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ |
75f8c1f6 NB |
872 | } \ |
873 | \ | |
2eafd729 CH |
874 | static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ |
875 | struct config_item *item, const char *page, size_t count) \ | |
75f8c1f6 | 876 | { \ |
2eafd729 | 877 | struct se_portal_group *se_tpg = attrib_to_tpg(item); \ |
75f8c1f6 NB |
878 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ |
879 | struct tcm_qla2xxx_tpg, se_tpg); \ | |
2eafd729 | 880 | struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ |
75f8c1f6 NB |
881 | unsigned long val; \ |
882 | int ret; \ | |
883 | \ | |
884 | ret = kstrtoul(page, 0, &val); \ | |
885 | if (ret < 0) { \ | |
886 | pr_err("kstrtoul() failed with" \ | |
887 | " ret: %d\n", ret); \ | |
888 | return -EINVAL; \ | |
889 | } \ | |
75f8c1f6 NB |
890 | \ |
891 | if ((val != 0) && (val != 1)) { \ | |
892 | pr_err("Illegal boolean value %lu\n", val); \ | |
893 | return -EINVAL; \ | |
894 | } \ | |
895 | \ | |
2eafd729 CH |
896 | a->name = val; \ |
897 | \ | |
898 | return count; \ | |
899 | } \ | |
900 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) | |
75f8c1f6 | 901 | |
75f8c1f6 | 902 | DEF_QLA_TPG_ATTRIB(generate_node_acls); |
75f8c1f6 | 903 | DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); |
75f8c1f6 | 904 | DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); |
75f8c1f6 | 905 | DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); |
de04a8aa | 906 | DEF_QLA_TPG_ATTRIB(demo_mode_login_only); |
54a5e73f LO |
907 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
908 | DEF_QLA_TPG_ATTRIB(jam_host); | |
909 | #endif | |
de04a8aa | 910 | |
75f8c1f6 | 911 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { |
2eafd729 CH |
912 | &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, |
913 | &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, | |
914 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, | |
915 | &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, | |
916 | &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, | |
54a5e73f LO |
917 | #ifdef CONFIG_TCM_QLA2XXX_DEBUG |
918 | &tcm_qla2xxx_tpg_attrib_attr_jam_host, | |
919 | #endif | |
75f8c1f6 NB |
920 | NULL, |
921 | }; | |
922 | ||
923 | /* End items for tcm_qla2xxx_tpg_attrib_cit */ | |
924 | ||
2eafd729 CH |
925 | static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, |
926 | char *page) | |
75f8c1f6 | 927 | { |
2eafd729 | 928 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
929 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
930 | struct tcm_qla2xxx_tpg, se_tpg); | |
931 | ||
932 | return snprintf(page, PAGE_SIZE, "%d\n", | |
933 | atomic_read(&tpg->lport_tpg_enabled)); | |
934 | } | |
935 | ||
7474f52a NB |
936 | static void tcm_qla2xxx_depend_tpg(struct work_struct *work) |
937 | { | |
938 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
939 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
940 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
941 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
942 | ||
d588cf8f | 943 | if (!target_depend_item(&se_tpg->tpg_group.cg_item)) { |
7474f52a NB |
944 | atomic_set(&base_tpg->lport_tpg_enabled, 1); |
945 | qlt_enable_vha(base_vha); | |
946 | } | |
947 | complete(&base_tpg->tpg_base_comp); | |
948 | } | |
949 | ||
950 | static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) | |
951 | { | |
952 | struct tcm_qla2xxx_tpg *base_tpg = container_of(work, | |
953 | struct tcm_qla2xxx_tpg, tpg_base_work); | |
954 | struct se_portal_group *se_tpg = &base_tpg->se_tpg; | |
955 | struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha; | |
956 | ||
957 | if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) { | |
958 | atomic_set(&base_tpg->lport_tpg_enabled, 0); | |
d588cf8f | 959 | target_undepend_item(&se_tpg->tpg_group.cg_item); |
7474f52a NB |
960 | } |
961 | complete(&base_tpg->tpg_base_comp); | |
962 | } | |
963 | ||
2eafd729 CH |
964 | static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, |
965 | const char *page, size_t count) | |
75f8c1f6 | 966 | { |
2eafd729 | 967 | struct se_portal_group *se_tpg = to_tpg(item); |
75f8c1f6 NB |
968 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
969 | struct tcm_qla2xxx_tpg, se_tpg); | |
970 | unsigned long op; | |
971 | int rc; | |
972 | ||
973 | rc = kstrtoul(page, 0, &op); | |
974 | if (rc < 0) { | |
975 | pr_err("kstrtoul() returned %d\n", rc); | |
976 | return -EINVAL; | |
977 | } | |
978 | if ((op != 1) && (op != 0)) { | |
979 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
980 | return -EINVAL; | |
981 | } | |
75f8c1f6 | 982 | if (op) { |
7474f52a NB |
983 | if (atomic_read(&tpg->lport_tpg_enabled)) |
984 | return -EEXIST; | |
985 | ||
986 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg); | |
75f8c1f6 | 987 | } else { |
7474f52a NB |
988 | if (!atomic_read(&tpg->lport_tpg_enabled)) |
989 | return count; | |
990 | ||
991 | INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg); | |
75f8c1f6 | 992 | } |
7474f52a NB |
993 | init_completion(&tpg->tpg_base_comp); |
994 | schedule_work(&tpg->tpg_base_work); | |
995 | wait_for_completion(&tpg->tpg_base_comp); | |
75f8c1f6 | 996 | |
7474f52a NB |
997 | if (op) { |
998 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
999 | return -ENODEV; | |
1000 | } else { | |
1001 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1002 | return -EPERM; | |
1003 | } | |
75f8c1f6 NB |
1004 | return count; |
1005 | } | |
1006 | ||
2eafd729 CH |
1007 | static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, |
1008 | char *page) | |
d23dbaaa | 1009 | { |
2eafd729 | 1010 | return target_show_dynamic_sessions(to_tpg(item), page); |
d23dbaaa NB |
1011 | } |
1012 | ||
2eafd729 CH |
1013 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, |
1014 | const char *page, size_t count) | |
64b16887 | 1015 | { |
2eafd729 | 1016 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
1017 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
1018 | struct tcm_qla2xxx_tpg, se_tpg); | |
1019 | unsigned long val; | |
1020 | int ret = kstrtoul(page, 0, &val); | |
1021 | ||
1022 | if (ret) { | |
1023 | pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret); | |
1024 | return ret; | |
1025 | } | |
1026 | if (val != 0 && val != 1 && val != 3) { | |
1027 | pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val); | |
1028 | return -EINVAL; | |
1029 | } | |
1030 | tpg->tpg_attrib.fabric_prot_type = val; | |
1031 | ||
1032 | return count; | |
1033 | } | |
1034 | ||
2eafd729 CH |
1035 | static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, |
1036 | char *page) | |
64b16887 | 1037 | { |
2eafd729 | 1038 | struct se_portal_group *se_tpg = to_tpg(item); |
64b16887 NB |
1039 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, |
1040 | struct tcm_qla2xxx_tpg, se_tpg); | |
1041 | ||
1042 | return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); | |
1043 | } | |
2eafd729 | 1044 | |
3786dc45 | 1045 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable); |
2eafd729 CH |
1046 | CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); |
1047 | CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); | |
64b16887 | 1048 | |
75f8c1f6 | 1049 | static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { |
2eafd729 CH |
1050 | &tcm_qla2xxx_tpg_attr_enable, |
1051 | &tcm_qla2xxx_tpg_attr_dynamic_sessions, | |
1052 | &tcm_qla2xxx_tpg_attr_fabric_prot_type, | |
75f8c1f6 NB |
1053 | NULL, |
1054 | }; | |
1055 | ||
1056 | static struct se_portal_group *tcm_qla2xxx_make_tpg( | |
1057 | struct se_wwn *wwn, | |
1058 | struct config_group *group, | |
1059 | const char *name) | |
1060 | { | |
1061 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1062 | struct tcm_qla2xxx_lport, lport_wwn); | |
1063 | struct tcm_qla2xxx_tpg *tpg; | |
1064 | unsigned long tpgt; | |
1065 | int ret; | |
1066 | ||
1067 | if (strstr(name, "tpgt_") != name) | |
1068 | return ERR_PTR(-EINVAL); | |
1069 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1070 | return ERR_PTR(-EINVAL); | |
1071 | ||
0e8cd71c | 1072 | if ((tpgt != 1)) { |
75f8c1f6 NB |
1073 | pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n"); |
1074 | return ERR_PTR(-ENOSYS); | |
1075 | } | |
1076 | ||
1077 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1078 | if (!tpg) { | |
1079 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1080 | return ERR_PTR(-ENOMEM); | |
1081 | } | |
1082 | tpg->lport = lport; | |
1083 | tpg->lport_tpgt = tpgt; | |
1084 | /* | |
1085 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1086 | * NodeACLs | |
1087 | */ | |
a309f489 AG |
1088 | tpg->tpg_attrib.generate_node_acls = 1; |
1089 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1090 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1091 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
54a5e73f | 1092 | tpg->tpg_attrib.jam_host = 0; |
75f8c1f6 | 1093 | |
bc0c94b1 | 1094 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1095 | if (ret < 0) { |
1096 | kfree(tpg); | |
1097 | return NULL; | |
1098 | } | |
0e8cd71c SK |
1099 | |
1100 | lport->tpg_1 = tpg; | |
75f8c1f6 NB |
1101 | |
1102 | return &tpg->se_tpg; | |
1103 | } | |
1104 | ||
1105 | static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) | |
1106 | { | |
1107 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1108 | struct tcm_qla2xxx_tpg, se_tpg); | |
1109 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1110 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1111 | /* |
1112 | * Call into qla2x_target.c LLD logic to shutdown the active | |
1113 | * FC Nexuses and disable target mode operation for this qla_hw_data | |
1114 | */ | |
0e8cd71c SK |
1115 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop) |
1116 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1117 | |
1118 | core_tpg_deregister(se_tpg); | |
1119 | /* | |
1120 | * Clear local TPG=1 pointer for non NPIV mode. | |
1121 | */ | |
394d62ba | 1122 | lport->tpg_1 = NULL; |
75f8c1f6 NB |
1123 | kfree(tpg); |
1124 | } | |
1125 | ||
2eafd729 CH |
1126 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, |
1127 | char *page) | |
394d62ba | 1128 | { |
2eafd729 | 1129 | return tcm_qla2xxx_tpg_enable_show(item, page); |
394d62ba NB |
1130 | } |
1131 | ||
2eafd729 CH |
1132 | static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, |
1133 | const char *page, size_t count) | |
394d62ba | 1134 | { |
2eafd729 | 1135 | struct se_portal_group *se_tpg = to_tpg(item); |
394d62ba NB |
1136 | struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; |
1137 | struct tcm_qla2xxx_lport *lport = container_of(se_wwn, | |
1138 | struct tcm_qla2xxx_lport, lport_wwn); | |
1139 | struct scsi_qla_host *vha = lport->qla_vha; | |
1140 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1141 | struct tcm_qla2xxx_tpg, se_tpg); | |
1142 | unsigned long op; | |
1143 | int rc; | |
1144 | ||
1145 | rc = kstrtoul(page, 0, &op); | |
1146 | if (rc < 0) { | |
1147 | pr_err("kstrtoul() returned %d\n", rc); | |
1148 | return -EINVAL; | |
1149 | } | |
1150 | if ((op != 1) && (op != 0)) { | |
1151 | pr_err("Illegal value for tpg_enable: %lu\n", op); | |
1152 | return -EINVAL; | |
1153 | } | |
1154 | if (op) { | |
1155 | if (atomic_read(&tpg->lport_tpg_enabled)) | |
1156 | return -EEXIST; | |
1157 | ||
1158 | atomic_set(&tpg->lport_tpg_enabled, 1); | |
1159 | qlt_enable_vha(vha); | |
1160 | } else { | |
1161 | if (!atomic_read(&tpg->lport_tpg_enabled)) | |
1162 | return count; | |
1163 | ||
1164 | atomic_set(&tpg->lport_tpg_enabled, 0); | |
1165 | qlt_stop_phase1(vha->vha_tgt.qla_tgt); | |
1166 | } | |
1167 | ||
1168 | return count; | |
1169 | } | |
1170 | ||
2eafd729 | 1171 | CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); |
394d62ba NB |
1172 | |
1173 | static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { | |
2eafd729 | 1174 | &tcm_qla2xxx_npiv_tpg_attr_enable, |
394d62ba NB |
1175 | NULL, |
1176 | }; | |
1177 | ||
75f8c1f6 NB |
1178 | static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg( |
1179 | struct se_wwn *wwn, | |
1180 | struct config_group *group, | |
1181 | const char *name) | |
1182 | { | |
1183 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1184 | struct tcm_qla2xxx_lport, lport_wwn); | |
1185 | struct tcm_qla2xxx_tpg *tpg; | |
1186 | unsigned long tpgt; | |
1187 | int ret; | |
1188 | ||
1189 | if (strstr(name, "tpgt_") != name) | |
1190 | return ERR_PTR(-EINVAL); | |
1191 | if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX) | |
1192 | return ERR_PTR(-EINVAL); | |
1193 | ||
1194 | tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL); | |
1195 | if (!tpg) { | |
1196 | pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n"); | |
1197 | return ERR_PTR(-ENOMEM); | |
1198 | } | |
1199 | tpg->lport = lport; | |
1200 | tpg->lport_tpgt = tpgt; | |
1201 | ||
0e8cd71c SK |
1202 | /* |
1203 | * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic | |
1204 | * NodeACLs | |
1205 | */ | |
1206 | tpg->tpg_attrib.generate_node_acls = 1; | |
1207 | tpg->tpg_attrib.demo_mode_write_protect = 1; | |
1208 | tpg->tpg_attrib.cache_dynamic_acls = 1; | |
1209 | tpg->tpg_attrib.demo_mode_login_only = 1; | |
1210 | ||
bc0c94b1 | 1211 | ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP); |
75f8c1f6 NB |
1212 | if (ret < 0) { |
1213 | kfree(tpg); | |
1214 | return NULL; | |
1215 | } | |
0e8cd71c | 1216 | lport->tpg_1 = tpg; |
75f8c1f6 NB |
1217 | return &tpg->se_tpg; |
1218 | } | |
1219 | ||
1220 | /* | |
7560151b | 1221 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1222 | */ |
5d964837 | 1223 | static struct fc_port *tcm_qla2xxx_find_sess_by_s_id( |
75f8c1f6 NB |
1224 | scsi_qla_host_t *vha, |
1225 | const uint8_t *s_id) | |
1226 | { | |
75f8c1f6 NB |
1227 | struct tcm_qla2xxx_lport *lport; |
1228 | struct se_node_acl *se_nacl; | |
1229 | struct tcm_qla2xxx_nacl *nacl; | |
1230 | u32 key; | |
1231 | ||
0e8cd71c | 1232 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1233 | if (!lport) { |
1234 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1235 | dump_stack(); | |
1236 | return NULL; | |
1237 | } | |
1238 | ||
8b2f5ff3 | 1239 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1240 | pr_debug("find_sess_by_s_id: 0x%06x\n", key); |
1241 | ||
1242 | se_nacl = btree_lookup32(&lport->lport_fcport_map, key); | |
1243 | if (!se_nacl) { | |
1244 | pr_debug("Unable to locate s_id: 0x%06x\n", key); | |
1245 | return NULL; | |
1246 | } | |
1247 | pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n", | |
1248 | se_nacl, se_nacl->initiatorname); | |
1249 | ||
1250 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 QT |
1251 | if (!nacl->fc_port) { |
1252 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1253 | return NULL; |
1254 | } | |
1255 | ||
5d964837 | 1256 | return nacl->fc_port; |
75f8c1f6 NB |
1257 | } |
1258 | ||
1259 | /* | |
7560151b | 1260 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1261 | */ |
1262 | static void tcm_qla2xxx_set_sess_by_s_id( | |
1263 | struct tcm_qla2xxx_lport *lport, | |
1264 | struct se_node_acl *new_se_nacl, | |
1265 | struct tcm_qla2xxx_nacl *nacl, | |
1266 | struct se_session *se_sess, | |
5d964837 | 1267 | struct fc_port *fc_port, |
75f8c1f6 NB |
1268 | uint8_t *s_id) |
1269 | { | |
1270 | u32 key; | |
1271 | void *slot; | |
1272 | int rc; | |
1273 | ||
8b2f5ff3 | 1274 | key = sid_to_key(s_id); |
75f8c1f6 NB |
1275 | pr_debug("set_sess_by_s_id: %06x\n", key); |
1276 | ||
1277 | slot = btree_lookup32(&lport->lport_fcport_map, key); | |
1278 | if (!slot) { | |
1279 | if (new_se_nacl) { | |
1280 | pr_debug("Setting up new fc_port entry to new_se_nacl\n"); | |
1281 | nacl->nport_id = key; | |
1282 | rc = btree_insert32(&lport->lport_fcport_map, key, | |
1283 | new_se_nacl, GFP_ATOMIC); | |
1284 | if (rc) | |
1285 | printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n", | |
1286 | (int)key); | |
1287 | } else { | |
1288 | pr_debug("Wiping nonexisting fc_port entry\n"); | |
1289 | } | |
1290 | ||
5d964837 QT |
1291 | fc_port->se_sess = se_sess; |
1292 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1293 | return; |
1294 | } | |
1295 | ||
5d964837 | 1296 | if (nacl->fc_port) { |
75f8c1f6 | 1297 | if (new_se_nacl == NULL) { |
5d964837 | 1298 | pr_debug("Clearing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1299 | btree_remove32(&lport->lport_fcport_map, key); |
5d964837 | 1300 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1301 | return; |
1302 | } | |
5d964837 | 1303 | pr_debug("Replacing existing nacl->fc_port and fc_port entry\n"); |
75f8c1f6 | 1304 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1305 | fc_port->se_sess = se_sess; |
1306 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1307 | return; |
1308 | } | |
1309 | ||
1310 | if (new_se_nacl == NULL) { | |
1311 | pr_debug("Clearing existing fc_port entry\n"); | |
1312 | btree_remove32(&lport->lport_fcport_map, key); | |
1313 | return; | |
1314 | } | |
1315 | ||
5d964837 | 1316 | pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n"); |
75f8c1f6 | 1317 | btree_update32(&lport->lport_fcport_map, key, new_se_nacl); |
5d964837 QT |
1318 | fc_port->se_sess = se_sess; |
1319 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1320 | |
5d964837 QT |
1321 | pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n", |
1322 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1323 | } |
1324 | ||
1325 | /* | |
7560151b | 1326 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 | 1327 | */ |
5d964837 | 1328 | static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id( |
75f8c1f6 NB |
1329 | scsi_qla_host_t *vha, |
1330 | const uint16_t loop_id) | |
1331 | { | |
75f8c1f6 NB |
1332 | struct tcm_qla2xxx_lport *lport; |
1333 | struct se_node_acl *se_nacl; | |
1334 | struct tcm_qla2xxx_nacl *nacl; | |
1335 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1336 | ||
0e8cd71c | 1337 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1338 | if (!lport) { |
1339 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1340 | dump_stack(); | |
1341 | return NULL; | |
1342 | } | |
1343 | ||
1344 | pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1345 | ||
1346 | fc_loopid = lport->lport_loopid_map + loop_id; | |
1347 | se_nacl = fc_loopid->se_nacl; | |
1348 | if (!se_nacl) { | |
1349 | pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n", | |
1350 | loop_id); | |
1351 | return NULL; | |
1352 | } | |
1353 | ||
1354 | nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl); | |
1355 | ||
5d964837 QT |
1356 | if (!nacl->fc_port) { |
1357 | pr_err("Unable to locate struct fc_port\n"); | |
75f8c1f6 NB |
1358 | return NULL; |
1359 | } | |
1360 | ||
5d964837 | 1361 | return nacl->fc_port; |
75f8c1f6 NB |
1362 | } |
1363 | ||
1364 | /* | |
7560151b | 1365 | * Expected to be called with struct qla_hw_data->tgt.sess_lock held |
75f8c1f6 NB |
1366 | */ |
1367 | static void tcm_qla2xxx_set_sess_by_loop_id( | |
1368 | struct tcm_qla2xxx_lport *lport, | |
1369 | struct se_node_acl *new_se_nacl, | |
1370 | struct tcm_qla2xxx_nacl *nacl, | |
1371 | struct se_session *se_sess, | |
5d964837 | 1372 | struct fc_port *fc_port, |
75f8c1f6 NB |
1373 | uint16_t loop_id) |
1374 | { | |
1375 | struct se_node_acl *saved_nacl; | |
1376 | struct tcm_qla2xxx_fc_loopid *fc_loopid; | |
1377 | ||
1378 | pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id); | |
1379 | ||
1380 | fc_loopid = &((struct tcm_qla2xxx_fc_loopid *) | |
1381 | lport->lport_loopid_map)[loop_id]; | |
1382 | ||
1383 | saved_nacl = fc_loopid->se_nacl; | |
1384 | if (!saved_nacl) { | |
1385 | pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n"); | |
1386 | fc_loopid->se_nacl = new_se_nacl; | |
5d964837 QT |
1387 | if (fc_port->se_sess != se_sess) |
1388 | fc_port->se_sess = se_sess; | |
1389 | if (nacl->fc_port != fc_port) | |
1390 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1391 | return; |
1392 | } | |
1393 | ||
5d964837 | 1394 | if (nacl->fc_port) { |
75f8c1f6 | 1395 | if (new_se_nacl == NULL) { |
5d964837 | 1396 | pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1397 | fc_loopid->se_nacl = NULL; |
5d964837 | 1398 | nacl->fc_port = NULL; |
75f8c1f6 NB |
1399 | return; |
1400 | } | |
1401 | ||
5d964837 | 1402 | pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n"); |
75f8c1f6 | 1403 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1404 | if (fc_port->se_sess != se_sess) |
1405 | fc_port->se_sess = se_sess; | |
1406 | if (nacl->fc_port != fc_port) | |
1407 | nacl->fc_port = fc_port; | |
75f8c1f6 NB |
1408 | return; |
1409 | } | |
1410 | ||
1411 | if (new_se_nacl == NULL) { | |
1412 | pr_debug("Clearing fc_loopid->se_nacl\n"); | |
1413 | fc_loopid->se_nacl = NULL; | |
1414 | return; | |
1415 | } | |
1416 | ||
5d964837 | 1417 | pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n"); |
75f8c1f6 | 1418 | fc_loopid->se_nacl = new_se_nacl; |
5d964837 QT |
1419 | if (fc_port->se_sess != se_sess) |
1420 | fc_port->se_sess = se_sess; | |
1421 | if (nacl->fc_port != fc_port) | |
1422 | nacl->fc_port = fc_port; | |
75f8c1f6 | 1423 | |
5d964837 QT |
1424 | pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n", |
1425 | nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname); | |
75f8c1f6 NB |
1426 | } |
1427 | ||
f2d5d9b9 | 1428 | /* |
7560151b | 1429 | * Should always be called with qla_hw_data->tgt.sess_lock held. |
f2d5d9b9 NB |
1430 | */ |
1431 | static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport, | |
5d964837 | 1432 | struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess) |
f2d5d9b9 NB |
1433 | { |
1434 | struct se_session *se_sess = sess->se_sess; | |
1435 | unsigned char be_sid[3]; | |
1436 | ||
37cacc0a QT |
1437 | be_sid[0] = sess->d_id.b.domain; |
1438 | be_sid[1] = sess->d_id.b.area; | |
1439 | be_sid[2] = sess->d_id.b.al_pa; | |
f2d5d9b9 NB |
1440 | |
1441 | tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess, | |
1442 | sess, be_sid); | |
1443 | tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess, | |
1444 | sess, sess->loop_id); | |
1445 | } | |
1446 | ||
5d964837 | 1447 | static void tcm_qla2xxx_free_session(struct fc_port *sess) |
75f8c1f6 NB |
1448 | { |
1449 | struct qla_tgt *tgt = sess->tgt; | |
1450 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1451 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
75f8c1f6 | 1452 | struct se_session *se_sess; |
75f8c1f6 | 1453 | struct tcm_qla2xxx_lport *lport; |
75f8c1f6 NB |
1454 | |
1455 | BUG_ON(in_interrupt()); | |
1456 | ||
1457 | se_sess = sess->se_sess; | |
1458 | if (!se_sess) { | |
5d964837 | 1459 | pr_err("struct fc_port->se_sess is NULL\n"); |
75f8c1f6 NB |
1460 | dump_stack(); |
1461 | return; | |
1462 | } | |
75f8c1f6 | 1463 | |
0e8cd71c | 1464 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1465 | if (!lport) { |
1466 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1467 | dump_stack(); | |
1468 | return; | |
1469 | } | |
be646c2d | 1470 | target_wait_for_sess_cmds(se_sess); |
75f8c1f6 NB |
1471 | |
1472 | transport_deregister_session_configfs(sess->se_sess); | |
1473 | transport_deregister_session(sess->se_sess); | |
1474 | } | |
1475 | ||
1b655b19 NB |
1476 | static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg, |
1477 | struct se_session *se_sess, void *p) | |
1478 | { | |
1479 | struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, | |
1480 | struct tcm_qla2xxx_tpg, se_tpg); | |
1481 | struct tcm_qla2xxx_lport *lport = tpg->lport; | |
1482 | struct qla_hw_data *ha = lport->qla_vha->hw; | |
1483 | struct se_node_acl *se_nacl = se_sess->se_node_acl; | |
1484 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1485 | struct tcm_qla2xxx_nacl, se_node_acl); | |
5d964837 | 1486 | struct fc_port *qlat_sess = p; |
1b655b19 NB |
1487 | uint16_t loop_id = qlat_sess->loop_id; |
1488 | unsigned long flags; | |
1489 | unsigned char be_sid[3]; | |
1490 | ||
37cacc0a QT |
1491 | be_sid[0] = qlat_sess->d_id.b.domain; |
1492 | be_sid[1] = qlat_sess->d_id.b.area; | |
1493 | be_sid[2] = qlat_sess->d_id.b.al_pa; | |
1b655b19 NB |
1494 | |
1495 | /* | |
1496 | * And now setup se_nacl and session pointers into HW lport internal | |
1497 | * mappings for fabric S_ID and LOOP_ID. | |
1498 | */ | |
1499 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1500 | tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, | |
1501 | se_sess, qlat_sess, be_sid); | |
1502 | tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl, | |
1503 | se_sess, qlat_sess, loop_id); | |
1504 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1505 | ||
1506 | return 0; | |
1507 | } | |
1508 | ||
75f8c1f6 NB |
1509 | /* |
1510 | * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl() | |
1511 | * to locate struct se_node_acl | |
1512 | */ | |
1513 | static int tcm_qla2xxx_check_initiator_node_acl( | |
1514 | scsi_qla_host_t *vha, | |
1515 | unsigned char *fc_wwpn, | |
5d964837 | 1516 | struct fc_port *qlat_sess) |
75f8c1f6 NB |
1517 | { |
1518 | struct qla_hw_data *ha = vha->hw; | |
1519 | struct tcm_qla2xxx_lport *lport; | |
1520 | struct tcm_qla2xxx_tpg *tpg; | |
75f8c1f6 | 1521 | struct se_session *se_sess; |
75f8c1f6 | 1522 | unsigned char port_name[36]; |
03e8c680 | 1523 | int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count : |
51a07f84 | 1524 | TCM_QLA2XXX_DEFAULT_TAGS; |
75f8c1f6 | 1525 | |
0e8cd71c | 1526 | lport = vha->vha_tgt.target_lport_ptr; |
75f8c1f6 NB |
1527 | if (!lport) { |
1528 | pr_err("Unable to locate struct tcm_qla2xxx_lport\n"); | |
1529 | dump_stack(); | |
1530 | return -EINVAL; | |
1531 | } | |
1532 | /* | |
1533 | * Locate the TPG=1 reference.. | |
1534 | */ | |
1535 | tpg = lport->tpg_1; | |
1536 | if (!tpg) { | |
1537 | pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n"); | |
1538 | return -EINVAL; | |
1539 | } | |
75f8c1f6 NB |
1540 | /* |
1541 | * Format the FCP Initiator port_name into colon seperated values to | |
1542 | * match the format by tcm_qla2xxx explict ConfigFS NodeACLs. | |
1543 | */ | |
1544 | memset(&port_name, 0, 36); | |
3c9786e5 | 1545 | snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn); |
75f8c1f6 NB |
1546 | /* |
1547 | * Locate our struct se_node_acl either from an explict NodeACL created | |
1548 | * via ConfigFS, or via running in TPG demo mode. | |
1549 | */ | |
1b655b19 NB |
1550 | se_sess = target_alloc_session(&tpg->se_tpg, num_tags, |
1551 | sizeof(struct qla_tgt_cmd), | |
1552 | TARGET_PROT_ALL, port_name, | |
1553 | qlat_sess, tcm_qla2xxx_session_cb); | |
1554 | if (IS_ERR(se_sess)) | |
1555 | return PTR_ERR(se_sess); | |
75f8c1f6 NB |
1556 | |
1557 | return 0; | |
1558 | } | |
1559 | ||
5d964837 | 1560 | static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id, |
c8292d1d RD |
1561 | uint16_t loop_id, bool conf_compl_supported) |
1562 | { | |
1563 | struct qla_tgt *tgt = sess->tgt; | |
1564 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c SK |
1565 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
1566 | struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr; | |
c8292d1d RD |
1567 | struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; |
1568 | struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, | |
1569 | struct tcm_qla2xxx_nacl, se_node_acl); | |
1570 | u32 key; | |
1571 | ||
1572 | ||
37cacc0a | 1573 | if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24) |
7b833558 OK |
1574 | pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", |
1575 | sess, sess->port_name, | |
37cacc0a QT |
1576 | sess->loop_id, loop_id, sess->d_id.b.domain, |
1577 | sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain, | |
7b833558 | 1578 | s_id.b.area, s_id.b.al_pa); |
c8292d1d RD |
1579 | |
1580 | if (sess->loop_id != loop_id) { | |
1581 | /* | |
1582 | * Because we can shuffle loop IDs around and we | |
1583 | * update different sessions non-atomically, we might | |
1584 | * have overwritten this session's old loop ID | |
1585 | * already, and we might end up overwriting some other | |
1586 | * session that will be updated later. So we have to | |
1587 | * be extra careful and we can't warn about those things... | |
1588 | */ | |
1589 | if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) | |
1590 | lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; | |
1591 | ||
1592 | lport->lport_loopid_map[loop_id].se_nacl = se_nacl; | |
1593 | ||
1594 | sess->loop_id = loop_id; | |
1595 | } | |
1596 | ||
37cacc0a QT |
1597 | if (sess->d_id.b24 != s_id.b24) { |
1598 | key = (((u32) sess->d_id.b.domain << 16) | | |
1599 | ((u32) sess->d_id.b.area << 8) | | |
1600 | ((u32) sess->d_id.b.al_pa)); | |
c8292d1d RD |
1601 | |
1602 | if (btree_lookup32(&lport->lport_fcport_map, key)) | |
37cacc0a QT |
1603 | WARN(btree_remove32(&lport->lport_fcport_map, key) != |
1604 | se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n", | |
1605 | sess->d_id.b.domain, sess->d_id.b.area, | |
1606 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1607 | else |
1608 | WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", | |
37cacc0a QT |
1609 | sess->d_id.b.domain, sess->d_id.b.area, |
1610 | sess->d_id.b.al_pa); | |
c8292d1d RD |
1611 | |
1612 | key = (((u32) s_id.b.domain << 16) | | |
1613 | ((u32) s_id.b.area << 8) | | |
1614 | ((u32) s_id.b.al_pa)); | |
1615 | ||
1616 | if (btree_lookup32(&lport->lport_fcport_map, key)) { | |
1617 | WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", | |
1618 | s_id.b.domain, s_id.b.area, s_id.b.al_pa); | |
1619 | btree_update32(&lport->lport_fcport_map, key, se_nacl); | |
1620 | } else { | |
37cacc0a QT |
1621 | btree_insert32(&lport->lport_fcport_map, key, se_nacl, |
1622 | GFP_ATOMIC); | |
c8292d1d RD |
1623 | } |
1624 | ||
37cacc0a | 1625 | sess->d_id = s_id; |
c8292d1d RD |
1626 | nacl->nport_id = key; |
1627 | } | |
1628 | ||
1629 | sess->conf_compl_supported = conf_compl_supported; | |
a6ca8878 AP |
1630 | |
1631 | /* Reset logout parameters to default */ | |
1632 | sess->logout_on_delete = 1; | |
1633 | sess->keep_nport_handle = 0; | |
c8292d1d RD |
1634 | } |
1635 | ||
75f8c1f6 NB |
1636 | /* |
1637 | * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. | |
1638 | */ | |
1639 | static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { | |
1640 | .handle_cmd = tcm_qla2xxx_handle_cmd, | |
1641 | .handle_data = tcm_qla2xxx_handle_data, | |
1642 | .handle_tmr = tcm_qla2xxx_handle_tmr, | |
1643 | .free_cmd = tcm_qla2xxx_free_cmd, | |
1644 | .free_mcmd = tcm_qla2xxx_free_mcmd, | |
1645 | .free_session = tcm_qla2xxx_free_session, | |
c8292d1d | 1646 | .update_sess = tcm_qla2xxx_update_sess, |
75f8c1f6 NB |
1647 | .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, |
1648 | .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, | |
1649 | .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, | |
1650 | .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, | |
5d964837 | 1651 | .put_sess = tcm_qla2xxx_put_sess, |
75f8c1f6 | 1652 | .shutdown_sess = tcm_qla2xxx_shutdown_sess, |
be25152c QT |
1653 | .get_dif_tags = tcm_qla2xxx_dif_tags, |
1654 | .chk_dif_tags = tcm_qla2xxx_chk_dif_tags, | |
75f8c1f6 NB |
1655 | }; |
1656 | ||
1657 | static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) | |
1658 | { | |
1659 | int rc; | |
1660 | ||
1661 | rc = btree_init32(&lport->lport_fcport_map); | |
1662 | if (rc) { | |
1663 | pr_err("Unable to initialize lport->lport_fcport_map btree\n"); | |
1664 | return rc; | |
1665 | } | |
1666 | ||
1667 | lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * | |
1668 | 65536); | |
1669 | if (!lport->lport_loopid_map) { | |
1670 | pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", | |
1671 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1672 | btree_destroy32(&lport->lport_fcport_map); | |
1673 | return -ENOMEM; | |
1674 | } | |
1675 | memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid) | |
1676 | * 65536); | |
1677 | pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", | |
1678 | sizeof(struct tcm_qla2xxx_fc_loopid) * 65536); | |
1679 | return 0; | |
1680 | } | |
1681 | ||
49a47f2c NB |
1682 | static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha, |
1683 | void *target_lport_ptr, | |
1684 | u64 npiv_wwpn, u64 npiv_wwnn) | |
75f8c1f6 | 1685 | { |
49a47f2c NB |
1686 | struct qla_hw_data *ha = vha->hw; |
1687 | struct tcm_qla2xxx_lport *lport = | |
1688 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
75f8c1f6 | 1689 | /* |
49a47f2c | 1690 | * Setup tgt_ops, local pointer to vha and target_lport_ptr |
75f8c1f6 | 1691 | */ |
49a47f2c NB |
1692 | ha->tgt.tgt_ops = &tcm_qla2xxx_template; |
1693 | vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
75f8c1f6 NB |
1694 | lport->qla_vha = vha; |
1695 | ||
1696 | return 0; | |
1697 | } | |
1698 | ||
1699 | static struct se_wwn *tcm_qla2xxx_make_lport( | |
1700 | struct target_fabric_configfs *tf, | |
1701 | struct config_group *group, | |
1702 | const char *name) | |
1703 | { | |
1704 | struct tcm_qla2xxx_lport *lport; | |
1705 | u64 wwpn; | |
1706 | int ret = -ENODEV; | |
1707 | ||
1708 | if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0) | |
1709 | return ERR_PTR(-EINVAL); | |
1710 | ||
1711 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1712 | if (!lport) { | |
1713 | pr_err("Unable to allocate struct tcm_qla2xxx_lport\n"); | |
1714 | return ERR_PTR(-ENOMEM); | |
1715 | } | |
1716 | lport->lport_wwpn = wwpn; | |
1717 | tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN, | |
1718 | wwpn); | |
c046aa0f | 1719 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn); |
75f8c1f6 NB |
1720 | |
1721 | ret = tcm_qla2xxx_init_lport(lport); | |
1722 | if (ret != 0) | |
1723 | goto out; | |
1724 | ||
49a47f2c NB |
1725 | ret = qlt_lport_register(lport, wwpn, 0, 0, |
1726 | tcm_qla2xxx_lport_register_cb); | |
75f8c1f6 NB |
1727 | if (ret != 0) |
1728 | goto out_lport; | |
1729 | ||
1730 | return &lport->lport_wwn; | |
1731 | out_lport: | |
1732 | vfree(lport->lport_loopid_map); | |
1733 | btree_destroy32(&lport->lport_fcport_map); | |
1734 | out: | |
1735 | kfree(lport); | |
1736 | return ERR_PTR(ret); | |
1737 | } | |
1738 | ||
1739 | static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn) | |
1740 | { | |
1741 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1742 | struct tcm_qla2xxx_lport, lport_wwn); | |
1743 | struct scsi_qla_host *vha = lport->qla_vha; | |
75f8c1f6 NB |
1744 | struct se_node_acl *node; |
1745 | u32 key = 0; | |
1746 | ||
1747 | /* | |
1748 | * Call into qla2x_target.c LLD logic to complete the | |
1749 | * shutdown of struct qla_tgt after the call to | |
1750 | * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above.. | |
1751 | */ | |
0e8cd71c SK |
1752 | if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped) |
1753 | qlt_stop_phase2(vha->vha_tgt.qla_tgt); | |
75f8c1f6 NB |
1754 | |
1755 | qlt_lport_deregister(vha); | |
1756 | ||
1757 | vfree(lport->lport_loopid_map); | |
1758 | btree_for_each_safe32(&lport->lport_fcport_map, key, node) | |
1759 | btree_remove32(&lport->lport_fcport_map, key); | |
1760 | btree_destroy32(&lport->lport_fcport_map); | |
1761 | kfree(lport); | |
1762 | } | |
1763 | ||
49a47f2c NB |
1764 | static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha, |
1765 | void *target_lport_ptr, | |
1766 | u64 npiv_wwpn, u64 npiv_wwnn) | |
1767 | { | |
1768 | struct fc_vport *vport; | |
1769 | struct Scsi_Host *sh = base_vha->host; | |
1770 | struct scsi_qla_host *npiv_vha; | |
1771 | struct tcm_qla2xxx_lport *lport = | |
1772 | (struct tcm_qla2xxx_lport *)target_lport_ptr; | |
7474f52a NB |
1773 | struct tcm_qla2xxx_lport *base_lport = |
1774 | (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr; | |
49a47f2c NB |
1775 | struct fc_vport_identifiers vport_id; |
1776 | ||
ead03855 | 1777 | if (qla_ini_mode_enabled(base_vha)) { |
49a47f2c NB |
1778 | pr_err("qla2xxx base_vha not enabled for target mode\n"); |
1779 | return -EPERM; | |
1780 | } | |
1781 | ||
7474f52a NB |
1782 | if (!base_lport || !base_lport->tpg_1 || |
1783 | !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) { | |
1784 | pr_err("qla2xxx base_lport or tpg_1 not available\n"); | |
1785 | return -EPERM; | |
1786 | } | |
7474f52a | 1787 | |
49a47f2c NB |
1788 | memset(&vport_id, 0, sizeof(vport_id)); |
1789 | vport_id.port_name = npiv_wwpn; | |
1790 | vport_id.node_name = npiv_wwnn; | |
1791 | vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
1792 | vport_id.vport_type = FC_PORTTYPE_NPIV; | |
1793 | vport_id.disable = false; | |
1794 | ||
1795 | vport = fc_vport_create(sh, 0, &vport_id); | |
1796 | if (!vport) { | |
1797 | pr_err("fc_vport_create failed for qla2xxx_npiv\n"); | |
1798 | return -ENODEV; | |
1799 | } | |
1800 | /* | |
1801 | * Setup local pointer to NPIV vhba + target_lport_ptr | |
1802 | */ | |
1803 | npiv_vha = (struct scsi_qla_host *)vport->dd_data; | |
1804 | npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr; | |
1805 | lport->qla_vha = npiv_vha; | |
49a47f2c NB |
1806 | scsi_host_get(npiv_vha->host); |
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | ||
75f8c1f6 NB |
1811 | static struct se_wwn *tcm_qla2xxx_npiv_make_lport( |
1812 | struct target_fabric_configfs *tf, | |
1813 | struct config_group *group, | |
1814 | const char *name) | |
1815 | { | |
1816 | struct tcm_qla2xxx_lport *lport; | |
49a47f2c NB |
1817 | u64 phys_wwpn, npiv_wwpn, npiv_wwnn; |
1818 | char *p, tmp[128]; | |
75f8c1f6 NB |
1819 | int ret; |
1820 | ||
49a47f2c NB |
1821 | snprintf(tmp, 128, "%s", name); |
1822 | ||
1823 | p = strchr(tmp, '@'); | |
1824 | if (!p) { | |
669a311b | 1825 | pr_err("Unable to locate NPIV '@' separator\n"); |
49a47f2c NB |
1826 | return ERR_PTR(-EINVAL); |
1827 | } | |
1828 | *p++ = '\0'; | |
1829 | ||
1830 | if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0) | |
1831 | return ERR_PTR(-EINVAL); | |
1832 | ||
1833 | if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1, | |
1834 | &npiv_wwpn, &npiv_wwnn) < 0) | |
75f8c1f6 NB |
1835 | return ERR_PTR(-EINVAL); |
1836 | ||
1837 | lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL); | |
1838 | if (!lport) { | |
1839 | pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n"); | |
1840 | return ERR_PTR(-ENOMEM); | |
1841 | } | |
1842 | lport->lport_npiv_wwpn = npiv_wwpn; | |
1843 | lport->lport_npiv_wwnn = npiv_wwnn; | |
c046aa0f | 1844 | sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn); |
75f8c1f6 | 1845 | |
0e8cd71c | 1846 | ret = tcm_qla2xxx_init_lport(lport); |
75f8c1f6 NB |
1847 | if (ret != 0) |
1848 | goto out; | |
1849 | ||
49a47f2c NB |
1850 | ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn, |
1851 | tcm_qla2xxx_lport_register_npiv_cb); | |
0e8cd71c SK |
1852 | if (ret != 0) |
1853 | goto out_lport; | |
1854 | ||
75f8c1f6 | 1855 | return &lport->lport_wwn; |
0e8cd71c SK |
1856 | out_lport: |
1857 | vfree(lport->lport_loopid_map); | |
1858 | btree_destroy32(&lport->lport_fcport_map); | |
75f8c1f6 NB |
1859 | out: |
1860 | kfree(lport); | |
1861 | return ERR_PTR(ret); | |
1862 | } | |
1863 | ||
1864 | static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) | |
1865 | { | |
1866 | struct tcm_qla2xxx_lport *lport = container_of(wwn, | |
1867 | struct tcm_qla2xxx_lport, lport_wwn); | |
49a47f2c NB |
1868 | struct scsi_qla_host *npiv_vha = lport->qla_vha; |
1869 | struct qla_hw_data *ha = npiv_vha->hw; | |
1870 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1871 | ||
1872 | scsi_host_put(npiv_vha->host); | |
75f8c1f6 | 1873 | /* |
0e8cd71c | 1874 | * Notify libfc that we want to release the vha->fc_vport |
75f8c1f6 | 1875 | */ |
49a47f2c NB |
1876 | fc_vport_terminate(npiv_vha->fc_vport); |
1877 | scsi_host_put(base_vha->host); | |
75f8c1f6 NB |
1878 | kfree(lport); |
1879 | } | |
1880 | ||
1881 | ||
2eafd729 CH |
1882 | static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, |
1883 | char *page) | |
75f8c1f6 NB |
1884 | { |
1885 | return sprintf(page, | |
1886 | "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " | |
2a47c685 | 1887 | UTS_RELEASE"\n", QLA2XXX_VERSION, utsname()->sysname, |
75f8c1f6 NB |
1888 | utsname()->machine); |
1889 | } | |
1890 | ||
2eafd729 | 1891 | CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); |
75f8c1f6 NB |
1892 | |
1893 | static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { | |
2eafd729 | 1894 | &tcm_qla2xxx_wwn_attr_version, |
75f8c1f6 NB |
1895 | NULL, |
1896 | }; | |
1897 | ||
9ac8928e CH |
1898 | static const struct target_core_fabric_ops tcm_qla2xxx_ops = { |
1899 | .module = THIS_MODULE, | |
1900 | .name = "qla2xxx", | |
144bc4c2 | 1901 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
8f9b5654 NB |
1902 | /* |
1903 | * XXX: Limit assumes single page per scatter-gather-list entry. | |
1904 | * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096 | |
1905 | */ | |
1906 | .max_data_sg_nents = 1200, | |
75f8c1f6 | 1907 | .get_fabric_name = tcm_qla2xxx_get_fabric_name, |
75f8c1f6 NB |
1908 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
1909 | .tpg_get_tag = tcm_qla2xxx_get_tag, | |
75f8c1f6 NB |
1910 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1911 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1912 | .tpg_check_demo_mode_write_protect = | |
1913 | tcm_qla2xxx_check_demo_write_protect, | |
1914 | .tpg_check_prod_mode_write_protect = | |
1915 | tcm_qla2xxx_check_prod_write_protect, | |
64b16887 | 1916 | .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only, |
de04a8aa | 1917 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1918 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
75f8c1f6 NB |
1919 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
1920 | .release_cmd = tcm_qla2xxx_release_cmd, | |
75f8c1f6 NB |
1921 | .close_session = tcm_qla2xxx_close_session, |
1922 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1923 | .sess_get_initiator_sid = NULL, | |
1924 | .write_pending = tcm_qla2xxx_write_pending, | |
1925 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1926 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1927 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1928 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1929 | .queue_status = tcm_qla2xxx_queue_status, | |
1930 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1931 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1932 | /* |
1933 | * Setup function pointers for generic logic in | |
1934 | * target_core_fabric_configfs.c | |
1935 | */ | |
1936 | .fabric_make_wwn = tcm_qla2xxx_make_lport, | |
1937 | .fabric_drop_wwn = tcm_qla2xxx_drop_lport, | |
1938 | .fabric_make_tpg = tcm_qla2xxx_make_tpg, | |
1939 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1940 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1941 | |
1942 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1943 | .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs, | |
1944 | .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs, | |
75f8c1f6 NB |
1945 | }; |
1946 | ||
9ac8928e CH |
1947 | static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { |
1948 | .module = THIS_MODULE, | |
1949 | .name = "qla2xxx_npiv", | |
144bc4c2 | 1950 | .node_acl_size = sizeof(struct tcm_qla2xxx_nacl), |
75f8c1f6 | 1951 | .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name, |
84197a36 | 1952 | .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn, |
75f8c1f6 | 1953 | .tpg_get_tag = tcm_qla2xxx_get_tag, |
0e8cd71c SK |
1954 | .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode, |
1955 | .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache, | |
1956 | .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode, | |
1957 | .tpg_check_prod_mode_write_protect = | |
1958 | tcm_qla2xxx_check_prod_write_protect, | |
de04a8aa | 1959 | .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, |
75f8c1f6 | 1960 | .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
0e8cd71c | 1961 | .check_stop_free = tcm_qla2xxx_check_stop_free, |
75f8c1f6 | 1962 | .release_cmd = tcm_qla2xxx_release_cmd, |
75f8c1f6 NB |
1963 | .close_session = tcm_qla2xxx_close_session, |
1964 | .sess_get_index = tcm_qla2xxx_sess_get_index, | |
1965 | .sess_get_initiator_sid = NULL, | |
1966 | .write_pending = tcm_qla2xxx_write_pending, | |
1967 | .write_pending_status = tcm_qla2xxx_write_pending_status, | |
1968 | .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs, | |
75f8c1f6 NB |
1969 | .get_cmd_state = tcm_qla2xxx_get_cmd_state, |
1970 | .queue_data_in = tcm_qla2xxx_queue_data_in, | |
1971 | .queue_status = tcm_qla2xxx_queue_status, | |
1972 | .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp, | |
131e6abc | 1973 | .aborted_task = tcm_qla2xxx_aborted_task, |
75f8c1f6 NB |
1974 | /* |
1975 | * Setup function pointers for generic logic in | |
1976 | * target_core_fabric_configfs.c | |
1977 | */ | |
1978 | .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport, | |
1979 | .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport, | |
1980 | .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg, | |
1981 | .fabric_drop_tpg = tcm_qla2xxx_drop_tpg, | |
c7d6a803 | 1982 | .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl, |
9ac8928e CH |
1983 | |
1984 | .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs, | |
1985 | .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs, | |
75f8c1f6 NB |
1986 | }; |
1987 | ||
1988 | static int tcm_qla2xxx_register_configfs(void) | |
1989 | { | |
75f8c1f6 NB |
1990 | int ret; |
1991 | ||
1992 | pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on " | |
2a47c685 | 1993 | UTS_RELEASE"\n", QLA2XXX_VERSION, utsname()->sysname, |
75f8c1f6 | 1994 | utsname()->machine); |
9ac8928e CH |
1995 | |
1996 | ret = target_register_template(&tcm_qla2xxx_ops); | |
1997 | if (ret) | |
75f8c1f6 | 1998 | return ret; |
75f8c1f6 | 1999 | |
9ac8928e CH |
2000 | ret = target_register_template(&tcm_qla2xxx_npiv_ops); |
2001 | if (ret) | |
75f8c1f6 | 2002 | goto out_fabric; |
75f8c1f6 NB |
2003 | |
2004 | tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free", | |
2005 | WQ_MEM_RECLAIM, 0); | |
2006 | if (!tcm_qla2xxx_free_wq) { | |
2007 | ret = -ENOMEM; | |
2008 | goto out_fabric_npiv; | |
2009 | } | |
2010 | ||
2011 | tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0); | |
2012 | if (!tcm_qla2xxx_cmd_wq) { | |
2013 | ret = -ENOMEM; | |
2014 | goto out_free_wq; | |
2015 | } | |
2016 | ||
2017 | return 0; | |
2018 | ||
2019 | out_free_wq: | |
2020 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2021 | out_fabric_npiv: | |
9ac8928e | 2022 | target_unregister_template(&tcm_qla2xxx_npiv_ops); |
75f8c1f6 | 2023 | out_fabric: |
9ac8928e | 2024 | target_unregister_template(&tcm_qla2xxx_ops); |
75f8c1f6 NB |
2025 | return ret; |
2026 | } | |
2027 | ||
2028 | static void tcm_qla2xxx_deregister_configfs(void) | |
2029 | { | |
2030 | destroy_workqueue(tcm_qla2xxx_cmd_wq); | |
2031 | destroy_workqueue(tcm_qla2xxx_free_wq); | |
2032 | ||
9ac8928e CH |
2033 | target_unregister_template(&tcm_qla2xxx_ops); |
2034 | target_unregister_template(&tcm_qla2xxx_npiv_ops); | |
75f8c1f6 NB |
2035 | } |
2036 | ||
2037 | static int __init tcm_qla2xxx_init(void) | |
2038 | { | |
2039 | int ret; | |
2040 | ||
2041 | ret = tcm_qla2xxx_register_configfs(); | |
2042 | if (ret < 0) | |
2043 | return ret; | |
2044 | ||
2045 | return 0; | |
2046 | } | |
2047 | ||
2048 | static void __exit tcm_qla2xxx_exit(void) | |
2049 | { | |
2050 | tcm_qla2xxx_deregister_configfs(); | |
2051 | } | |
2052 | ||
24c7d6c7 | 2053 | MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver"); |
75f8c1f6 NB |
2054 | MODULE_LICENSE("GPL"); |
2055 | module_init(tcm_qla2xxx_init); | |
2056 | module_exit(tcm_qla2xxx_exit); |