1 /*******************************************************************************
2 * This file contains tcm implementation using v4 configfs fabric infrastructure
3 * for QLogic target mode HBAs
5 * ?? Copyright 2010-2011 RisingTide Systems LLC.
7 * Licensed to the Linux Foundation under the General Public License (GPL)
10 * Author: Nicholas A. Bellinger <nab@risingtidesystems.com>
12 * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
13 * the TCM_FC / Open-FCoE.org fabric module.
15 * Copyright (c) 2010 Cisco Systems, Inc
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 ****************************************************************************/
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <generated/utsrelease.h>
32 #include <linux/utsname.h>
33 #include <linux/init.h>
34 #include <linux/list.h>
35 #include <linux/slab.h>
36 #include <linux/kthread.h>
37 #include <linux/types.h>
38 #include <linux/string.h>
39 #include <linux/configfs.h>
40 #include <linux/ctype.h>
41 #include <asm/unaligned.h>
42 #include <scsi/scsi.h>
43 #include <scsi/scsi_host.h>
44 #include <scsi/scsi_device.h>
45 #include <scsi/scsi_cmnd.h>
46 #include <target/target_core_base.h>
47 #include <target/target_core_fabric.h>
48 #include <target/target_core_fabric_configfs.h>
49 #include <target/target_core_configfs.h>
50 #include <target/configfs_macros.h>
53 #include "qla_target.h"
54 #include "tcm_qla2xxx.h"
56 struct workqueue_struct
*tcm_qla2xxx_free_wq
;
57 struct workqueue_struct
*tcm_qla2xxx_cmd_wq
;
59 static int tcm_qla2xxx_check_true(struct se_portal_group
*se_tpg
)
64 static int tcm_qla2xxx_check_false(struct se_portal_group
*se_tpg
)
71 * If strict, we require lower-case hex and colon separators to be sure
72 * the name is the same as what would be generated by ft_format_wwn()
73 * so the name and wwn are mapped one-to-one.
75 static ssize_t
tcm_qla2xxx_parse_wwn(const char *name
, u64
*wwn
, int strict
)
85 for (cp
= name
; cp
< &name
[TCM_QLA2XXX_NAMELEN
- 1]; cp
++) {
87 if (c
== '\n' && cp
[1] == '\0')
89 if (strict
&& pos
++ == 2 && byte
++ < 7) {
98 if (strict
&& byte
!= 8)
105 else if (isxdigit(c
) && (islower(c
) || !strict
))
106 nibble
= tolower(c
) - 'a' + 10;
109 *wwn
= (*wwn
<< 4) | nibble
;
113 pr_debug("err %u len %zu pos %u byte %u\n",
114 err
, cp
- name
, pos
, byte
);
118 static ssize_t
tcm_qla2xxx_format_wwn(char *buf
, size_t len
, u64 wwn
)
122 put_unaligned_be64(wwn
, b
);
123 return snprintf(buf
, len
,
124 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
125 b
[0], b
[1], b
[2], b
[3], b
[4], b
[5], b
[6], b
[7]);
128 static char *tcm_qla2xxx_get_fabric_name(void)
134 * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
136 static int tcm_qla2xxx_npiv_extract_wwn(const char *ns
, u64
*nm
)
141 memset(wwn
, 0, sizeof(wwn
));
143 /* Validate and store the new name */
144 for (i
= 0, j
= 0; i
< 16; i
++) {
147 value
= hex_to_bin(*ns
++);
149 j
= (j
<< 4) | value
;
159 *nm
= wwn_to_u64(wwn
);
164 * This parsing logic follows drivers/scsi/scsi_transport_fc.c:
165 * store_fc_host_vport_create()
167 static int tcm_qla2xxx_npiv_parse_wwn(
173 unsigned int cnt
= count
;
179 /* count may include a LF at end of string */
180 if (name
[cnt
-1] == '\n')
183 /* validate we have enough characters for WWPN */
184 if ((cnt
!= (16+1+16)) || (name
[16] != ':'))
187 rc
= tcm_qla2xxx_npiv_extract_wwn(&name
[0], wwpn
);
191 rc
= tcm_qla2xxx_npiv_extract_wwn(&name
[17], wwnn
);
198 static ssize_t
tcm_qla2xxx_npiv_format_wwn(char *buf
, size_t len
,
203 put_unaligned_be64(wwpn
, b
);
204 put_unaligned_be64(wwnn
, b2
);
205 return snprintf(buf
, len
,
206 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x,"
207 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
208 b
[0], b
[1], b
[2], b
[3], b
[4], b
[5], b
[6], b
[7],
209 b2
[0], b2
[1], b2
[2], b2
[3], b2
[4], b2
[5], b2
[6], b2
[7]);
212 static char *tcm_qla2xxx_npiv_get_fabric_name(void)
214 return "qla2xxx_npiv";
217 static u8
tcm_qla2xxx_get_fabric_proto_ident(struct se_portal_group
*se_tpg
)
219 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
220 struct tcm_qla2xxx_tpg
, se_tpg
);
221 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
224 switch (lport
->lport_proto_id
) {
225 case SCSI_PROTOCOL_FCP
:
227 proto_id
= fc_get_fabric_proto_ident(se_tpg
);
234 static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group
*se_tpg
)
236 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
237 struct tcm_qla2xxx_tpg
, se_tpg
);
238 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
240 return &lport
->lport_name
[0];
243 static char *tcm_qla2xxx_npiv_get_fabric_wwn(struct se_portal_group
*se_tpg
)
245 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
246 struct tcm_qla2xxx_tpg
, se_tpg
);
247 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
249 return &lport
->lport_npiv_name
[0];
252 static u16
tcm_qla2xxx_get_tag(struct se_portal_group
*se_tpg
)
254 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
255 struct tcm_qla2xxx_tpg
, se_tpg
);
256 return tpg
->lport_tpgt
;
259 static u32
tcm_qla2xxx_get_default_depth(struct se_portal_group
*se_tpg
)
264 static u32
tcm_qla2xxx_get_pr_transport_id(
265 struct se_portal_group
*se_tpg
,
266 struct se_node_acl
*se_nacl
,
267 struct t10_pr_registration
*pr_reg
,
271 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
272 struct tcm_qla2xxx_tpg
, se_tpg
);
273 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
276 switch (lport
->lport_proto_id
) {
277 case SCSI_PROTOCOL_FCP
:
279 ret
= fc_get_pr_transport_id(se_tpg
, se_nacl
, pr_reg
,
287 static u32
tcm_qla2xxx_get_pr_transport_id_len(
288 struct se_portal_group
*se_tpg
,
289 struct se_node_acl
*se_nacl
,
290 struct t10_pr_registration
*pr_reg
,
293 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
294 struct tcm_qla2xxx_tpg
, se_tpg
);
295 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
298 switch (lport
->lport_proto_id
) {
299 case SCSI_PROTOCOL_FCP
:
301 ret
= fc_get_pr_transport_id_len(se_tpg
, se_nacl
, pr_reg
,
309 static char *tcm_qla2xxx_parse_pr_out_transport_id(
310 struct se_portal_group
*se_tpg
,
313 char **port_nexus_ptr
)
315 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
316 struct tcm_qla2xxx_tpg
, se_tpg
);
317 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
320 switch (lport
->lport_proto_id
) {
321 case SCSI_PROTOCOL_FCP
:
323 tid
= fc_parse_pr_out_transport_id(se_tpg
, buf
, out_tid_len
,
331 static int tcm_qla2xxx_check_demo_mode(struct se_portal_group
*se_tpg
)
333 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
334 struct tcm_qla2xxx_tpg
, se_tpg
);
336 return QLA_TPG_ATTRIB(tpg
)->generate_node_acls
;
339 static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group
*se_tpg
)
341 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
342 struct tcm_qla2xxx_tpg
, se_tpg
);
344 return QLA_TPG_ATTRIB(tpg
)->cache_dynamic_acls
;
347 static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group
*se_tpg
)
349 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
350 struct tcm_qla2xxx_tpg
, se_tpg
);
352 return QLA_TPG_ATTRIB(tpg
)->demo_mode_write_protect
;
355 static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group
*se_tpg
)
357 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
358 struct tcm_qla2xxx_tpg
, se_tpg
);
360 return QLA_TPG_ATTRIB(tpg
)->prod_mode_write_protect
;
363 static struct se_node_acl
*tcm_qla2xxx_alloc_fabric_acl(
364 struct se_portal_group
*se_tpg
)
366 struct tcm_qla2xxx_nacl
*nacl
;
368 nacl
= kzalloc(sizeof(struct tcm_qla2xxx_nacl
), GFP_KERNEL
);
370 pr_err("Unable to alocate struct tcm_qla2xxx_nacl\n");
374 return &nacl
->se_node_acl
;
377 static void tcm_qla2xxx_release_fabric_acl(
378 struct se_portal_group
*se_tpg
,
379 struct se_node_acl
*se_nacl
)
381 struct tcm_qla2xxx_nacl
*nacl
= container_of(se_nacl
,
382 struct tcm_qla2xxx_nacl
, se_node_acl
);
386 static u32
tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group
*se_tpg
)
388 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
389 struct tcm_qla2xxx_tpg
, se_tpg
);
391 return tpg
->lport_tpgt
;
394 static void tcm_qla2xxx_complete_mcmd(struct work_struct
*work
)
396 struct qla_tgt_mgmt_cmd
*mcmd
= container_of(work
,
397 struct qla_tgt_mgmt_cmd
, free_work
);
399 transport_generic_free_cmd(&mcmd
->se_cmd
, 0);
403 * Called from qla_target_template->free_mcmd(), and will call
404 * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops
405 * release callback. qla_hw_data->hardware_lock is expected to be held
407 static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd
*mcmd
)
409 INIT_WORK(&mcmd
->free_work
, tcm_qla2xxx_complete_mcmd
);
410 queue_work(tcm_qla2xxx_free_wq
, &mcmd
->free_work
);
413 static void tcm_qla2xxx_complete_free(struct work_struct
*work
)
415 struct qla_tgt_cmd
*cmd
= container_of(work
, struct qla_tgt_cmd
, work
);
417 transport_generic_free_cmd(&cmd
->se_cmd
, 0);
421 * Called from qla_target_template->free_cmd(), and will call
422 * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops
423 * release callback. qla_hw_data->hardware_lock is expected to be held
425 static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd
*cmd
)
427 INIT_WORK(&cmd
->work
, tcm_qla2xxx_complete_free
);
428 queue_work(tcm_qla2xxx_free_wq
, &cmd
->work
);
432 * Called from struct target_core_fabric_ops->check_stop_free() context
434 static int tcm_qla2xxx_check_stop_free(struct se_cmd
*se_cmd
)
436 return target_put_sess_cmd(se_cmd
->se_sess
, se_cmd
);
439 /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
440 * fabric descriptor @se_cmd command to release
442 static void tcm_qla2xxx_release_cmd(struct se_cmd
*se_cmd
)
444 struct qla_tgt_cmd
*cmd
;
446 if (se_cmd
->se_cmd_flags
& SCF_SCSI_TMR_CDB
) {
447 struct qla_tgt_mgmt_cmd
*mcmd
= container_of(se_cmd
,
448 struct qla_tgt_mgmt_cmd
, se_cmd
);
453 cmd
= container_of(se_cmd
, struct qla_tgt_cmd
, se_cmd
);
457 static int tcm_qla2xxx_shutdown_session(struct se_session
*se_sess
)
459 struct qla_tgt_sess
*sess
= se_sess
->fabric_sess_ptr
;
460 struct scsi_qla_host
*vha
;
466 spin_lock_irqsave(&vha
->hw
->hardware_lock
, flags
);
467 target_sess_cmd_list_set_waiting(se_sess
);
468 spin_unlock_irqrestore(&vha
->hw
->hardware_lock
, flags
);
473 static void tcm_qla2xxx_close_session(struct se_session
*se_sess
)
475 struct qla_tgt_sess
*sess
= se_sess
->fabric_sess_ptr
;
476 struct scsi_qla_host
*vha
;
482 spin_lock_irqsave(&vha
->hw
->hardware_lock
, flags
);
483 qlt_unreg_sess(sess
);
484 spin_unlock_irqrestore(&vha
->hw
->hardware_lock
, flags
);
487 static u32
tcm_qla2xxx_sess_get_index(struct se_session
*se_sess
)
493 * The LIO target core uses DMA_TO_DEVICE to mean that data is going
494 * to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean
495 * that data is coming from the target (eg handling a READ). However,
496 * this is just the opposite of what we have to tell the DMA mapping
497 * layer -- eg when handling a READ, the HBA will have to DMA the data
498 * out of memory so it can send it to the initiator, which means we
499 * need to use DMA_TO_DEVICE when we map the data.
501 static enum dma_data_direction
tcm_qla2xxx_mapping_dir(struct se_cmd
*se_cmd
)
503 if (se_cmd
->se_cmd_flags
& SCF_BIDI
)
504 return DMA_BIDIRECTIONAL
;
506 switch (se_cmd
->data_direction
) {
508 return DMA_FROM_DEVICE
;
509 case DMA_FROM_DEVICE
:
510 return DMA_TO_DEVICE
;
517 static int tcm_qla2xxx_write_pending(struct se_cmd
*se_cmd
)
519 struct qla_tgt_cmd
*cmd
= container_of(se_cmd
,
520 struct qla_tgt_cmd
, se_cmd
);
522 cmd
->bufflen
= se_cmd
->data_length
;
523 cmd
->dma_data_direction
= tcm_qla2xxx_mapping_dir(se_cmd
);
525 cmd
->sg_cnt
= se_cmd
->t_data_nents
;
526 cmd
->sg
= se_cmd
->t_data_sg
;
529 * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup
530 * the SGL mappings into PCIe memory for incoming FCP WRITE data.
532 return qlt_rdy_to_xfer(cmd
);
535 static int tcm_qla2xxx_write_pending_status(struct se_cmd
*se_cmd
)
539 * Check for WRITE_PENDING status to determine if we need to wait for
540 * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data().
542 spin_lock_irqsave(&se_cmd
->t_state_lock
, flags
);
543 if (se_cmd
->t_state
== TRANSPORT_WRITE_PENDING
||
544 se_cmd
->t_state
== TRANSPORT_COMPLETE_QF_WP
) {
545 spin_unlock_irqrestore(&se_cmd
->t_state_lock
, flags
);
546 wait_for_completion_timeout(&se_cmd
->t_transport_stop_comp
,
550 spin_unlock_irqrestore(&se_cmd
->t_state_lock
, flags
);
555 static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl
*nacl
)
560 static u32
tcm_qla2xxx_get_task_tag(struct se_cmd
*se_cmd
)
562 struct qla_tgt_cmd
*cmd
= container_of(se_cmd
,
563 struct qla_tgt_cmd
, se_cmd
);
568 static int tcm_qla2xxx_get_cmd_state(struct se_cmd
*se_cmd
)
574 * Called from process context in qla_target.c:qlt_do_work() code
576 static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t
*vha
, struct qla_tgt_cmd
*cmd
,
577 unsigned char *cdb
, uint32_t data_length
, int fcp_task_attr
,
578 int data_dir
, int bidi
)
580 struct se_cmd
*se_cmd
= &cmd
->se_cmd
;
581 struct se_session
*se_sess
;
582 struct qla_tgt_sess
*sess
;
583 int flags
= TARGET_SCF_ACK_KREF
;
586 flags
|= TARGET_SCF_BIDI_OP
;
590 pr_err("Unable to locate struct qla_tgt_sess from qla_tgt_cmd\n");
594 se_sess
= sess
->se_sess
;
596 pr_err("Unable to locate active struct se_session\n");
600 return target_submit_cmd(se_cmd
, se_sess
, cdb
, &cmd
->sense_buffer
[0],
601 cmd
->unpacked_lun
, data_length
, fcp_task_attr
,
605 static void tcm_qla2xxx_handle_data_work(struct work_struct
*work
)
607 struct qla_tgt_cmd
*cmd
= container_of(work
, struct qla_tgt_cmd
, work
);
610 * Ensure that the complete FCP WRITE payload has been received.
611 * Otherwise return an exception via CHECK_CONDITION status.
613 if (!cmd
->write_data_transferred
) {
615 * Check if se_cmd has already been aborted via LUN_RESET, and
616 * waiting upon completion in tcm_qla2xxx_write_pending_status()
618 if (cmd
->se_cmd
.transport_state
& CMD_T_ABORTED
) {
619 complete(&cmd
->se_cmd
.t_transport_stop_comp
);
623 cmd
->se_cmd
.scsi_sense_reason
= TCM_CHECK_CONDITION_ABORT_CMD
;
624 transport_generic_request_failure(&cmd
->se_cmd
);
628 return target_execute_cmd(&cmd
->se_cmd
);
632 * Called from qla_target.c:qlt_do_ctio_completion()
634 static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd
*cmd
)
636 INIT_WORK(&cmd
->work
, tcm_qla2xxx_handle_data_work
);
637 queue_work(tcm_qla2xxx_free_wq
, &cmd
->work
);
641 * Called from qla_target.c:qlt_issue_task_mgmt()
643 static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd
*mcmd
, uint32_t lun
,
644 uint8_t tmr_func
, uint32_t tag
)
646 struct qla_tgt_sess
*sess
= mcmd
->sess
;
647 struct se_cmd
*se_cmd
= &mcmd
->se_cmd
;
649 return target_submit_tmr(se_cmd
, sess
->se_sess
, NULL
, lun
, mcmd
,
650 tmr_func
, GFP_ATOMIC
, tag
, TARGET_SCF_ACK_KREF
);
653 static int tcm_qla2xxx_queue_data_in(struct se_cmd
*se_cmd
)
655 struct qla_tgt_cmd
*cmd
= container_of(se_cmd
,
656 struct qla_tgt_cmd
, se_cmd
);
658 cmd
->bufflen
= se_cmd
->data_length
;
659 cmd
->dma_data_direction
= tcm_qla2xxx_mapping_dir(se_cmd
);
660 cmd
->aborted
= (se_cmd
->transport_state
& CMD_T_ABORTED
);
662 cmd
->sg_cnt
= se_cmd
->t_data_nents
;
663 cmd
->sg
= se_cmd
->t_data_sg
;
667 * Now queue completed DATA_IN the qla2xxx LLD and response ring
669 return qlt_xmit_response(cmd
, QLA_TGT_XMIT_DATA
|QLA_TGT_XMIT_STATUS
,
670 se_cmd
->scsi_status
);
673 static int tcm_qla2xxx_queue_status(struct se_cmd
*se_cmd
)
675 struct qla_tgt_cmd
*cmd
= container_of(se_cmd
,
676 struct qla_tgt_cmd
, se_cmd
);
677 int xmit_type
= QLA_TGT_XMIT_STATUS
;
679 cmd
->bufflen
= se_cmd
->data_length
;
683 cmd
->dma_data_direction
= tcm_qla2xxx_mapping_dir(se_cmd
);
684 cmd
->aborted
= (se_cmd
->transport_state
& CMD_T_ABORTED
);
686 if (se_cmd
->data_direction
== DMA_FROM_DEVICE
) {
688 * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
689 * for qla_tgt_xmit_response LLD code
691 se_cmd
->se_cmd_flags
|= SCF_UNDERFLOW_BIT
;
692 se_cmd
->residual_count
= se_cmd
->data_length
;
697 * Now queue status response to qla2xxx LLD code and response ring
699 return qlt_xmit_response(cmd
, xmit_type
, se_cmd
->scsi_status
);
702 static int tcm_qla2xxx_queue_tm_rsp(struct se_cmd
*se_cmd
)
704 struct se_tmr_req
*se_tmr
= se_cmd
->se_tmr_req
;
705 struct qla_tgt_mgmt_cmd
*mcmd
= container_of(se_cmd
,
706 struct qla_tgt_mgmt_cmd
, se_cmd
);
708 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
709 mcmd
, se_tmr
->function
, se_tmr
->response
);
711 * Do translation between TCM TM response codes and
712 * QLA2xxx FC TM response codes.
714 switch (se_tmr
->response
) {
715 case TMR_FUNCTION_COMPLETE
:
716 mcmd
->fc_tm_rsp
= FC_TM_SUCCESS
;
718 case TMR_TASK_DOES_NOT_EXIST
:
719 mcmd
->fc_tm_rsp
= FC_TM_BAD_CMD
;
721 case TMR_FUNCTION_REJECTED
:
722 mcmd
->fc_tm_rsp
= FC_TM_REJECT
;
724 case TMR_LUN_DOES_NOT_EXIST
:
726 mcmd
->fc_tm_rsp
= FC_TM_FAILED
;
730 * Queue the TM response to QLA2xxx LLD to build a
731 * CTIO response packet.
733 qlt_xmit_tm_rsp(mcmd
);
738 static u16
tcm_qla2xxx_get_fabric_sense_len(void)
743 static u16
tcm_qla2xxx_set_fabric_sense_len(struct se_cmd
*se_cmd
,
749 /* Local pointer to allocated TCM configfs fabric module */
750 struct target_fabric_configfs
*tcm_qla2xxx_fabric_configfs
;
751 struct target_fabric_configfs
*tcm_qla2xxx_npiv_fabric_configfs
;
753 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport
*,
754 struct tcm_qla2xxx_nacl
*, struct qla_tgt_sess
*);
756 * Expected to be called with struct qla_hw_data->hardware_lock held
758 static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct qla_tgt_sess
*sess
)
760 struct se_node_acl
*se_nacl
= sess
->se_sess
->se_node_acl
;
761 struct se_portal_group
*se_tpg
= se_nacl
->se_tpg
;
762 struct se_wwn
*se_wwn
= se_tpg
->se_tpg_wwn
;
763 struct tcm_qla2xxx_lport
*lport
= container_of(se_wwn
,
764 struct tcm_qla2xxx_lport
, lport_wwn
);
765 struct tcm_qla2xxx_nacl
*nacl
= container_of(se_nacl
,
766 struct tcm_qla2xxx_nacl
, se_node_acl
);
769 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl
->nport_id
);
771 node
= btree_remove32(&lport
->lport_fcport_map
, nacl
->nport_id
);
772 WARN_ON(node
&& (node
!= se_nacl
));
774 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
775 se_nacl
, nacl
->nport_wwnn
, nacl
->nport_id
);
777 * Now clear the se_nacl and session pointers from our HW lport lookup
778 * table mapping for this initiator's fabric S_ID and LOOP_ID entries.
780 * This is done ahead of callbacks into tcm_qla2xxx_free_session() ->
781 * target_wait_for_sess_cmds() before the session waits for outstanding
782 * I/O to complete, to avoid a race between session shutdown execution
783 * and incoming ATIOs or TMRs picking up a stale se_node_act reference.
785 tcm_qla2xxx_clear_sess_lookup(lport
, nacl
, sess
);
788 static void tcm_qla2xxx_release_session(struct kref
*kref
)
790 struct se_session
*se_sess
= container_of(kref
,
791 struct se_session
, sess_kref
);
793 qlt_unreg_sess(se_sess
->fabric_sess_ptr
);
796 static void tcm_qla2xxx_put_session(struct se_session
*se_sess
)
798 struct qla_tgt_sess
*sess
= se_sess
->fabric_sess_ptr
;
799 struct qla_hw_data
*ha
= sess
->vha
->hw
;
802 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
803 kref_put(&se_sess
->sess_kref
, tcm_qla2xxx_release_session
);
804 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
807 static void tcm_qla2xxx_put_sess(struct qla_tgt_sess
*sess
)
809 tcm_qla2xxx_put_session(sess
->se_sess
);
812 static void tcm_qla2xxx_shutdown_sess(struct qla_tgt_sess
*sess
)
814 tcm_qla2xxx_shutdown_session(sess
->se_sess
);
817 static struct se_node_acl
*tcm_qla2xxx_make_nodeacl(
818 struct se_portal_group
*se_tpg
,
819 struct config_group
*group
,
822 struct se_node_acl
*se_nacl
, *se_nacl_new
;
823 struct tcm_qla2xxx_nacl
*nacl
;
825 u32 qla2xxx_nexus_depth
;
827 if (tcm_qla2xxx_parse_wwn(name
, &wwnn
, 1) < 0)
828 return ERR_PTR(-EINVAL
);
830 se_nacl_new
= tcm_qla2xxx_alloc_fabric_acl(se_tpg
);
832 return ERR_PTR(-ENOMEM
);
833 /* #warning FIXME: Hardcoded qla2xxx_nexus depth in tcm_qla2xxx_make_nodeacl */
834 qla2xxx_nexus_depth
= 1;
837 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
838 * when converting a NodeACL from demo mode -> explict
840 se_nacl
= core_tpg_add_initiator_node_acl(se_tpg
, se_nacl_new
,
841 name
, qla2xxx_nexus_depth
);
842 if (IS_ERR(se_nacl
)) {
843 tcm_qla2xxx_release_fabric_acl(se_tpg
, se_nacl_new
);
847 * Locate our struct tcm_qla2xxx_nacl and set the FC Nport WWPN
849 nacl
= container_of(se_nacl
, struct tcm_qla2xxx_nacl
, se_node_acl
);
850 nacl
->nport_wwnn
= wwnn
;
851 tcm_qla2xxx_format_wwn(&nacl
->nport_name
[0], TCM_QLA2XXX_NAMELEN
, wwnn
);
856 static void tcm_qla2xxx_drop_nodeacl(struct se_node_acl
*se_acl
)
858 struct se_portal_group
*se_tpg
= se_acl
->se_tpg
;
859 struct tcm_qla2xxx_nacl
*nacl
= container_of(se_acl
,
860 struct tcm_qla2xxx_nacl
, se_node_acl
);
862 core_tpg_del_initiator_node_acl(se_tpg
, se_acl
, 1);
866 /* Start items for tcm_qla2xxx_tpg_attrib_cit */
868 #define DEF_QLA_TPG_ATTRIB(name) \
870 static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \
871 struct se_portal_group *se_tpg, \
874 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
875 struct tcm_qla2xxx_tpg, se_tpg); \
877 return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name); \
880 static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \
881 struct se_portal_group *se_tpg, \
885 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
886 struct tcm_qla2xxx_tpg, se_tpg); \
890 ret = kstrtoul(page, 0, &val); \
892 pr_err("kstrtoul() failed with" \
893 " ret: %d\n", ret); \
896 ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \
898 return (!ret) ? count : -EINVAL; \
901 #define DEF_QLA_TPG_ATTR_BOOL(_name) \
903 static int tcm_qla2xxx_set_attrib_##_name( \
904 struct tcm_qla2xxx_tpg *tpg, \
907 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
909 if ((val != 0) && (val != 1)) { \
910 pr_err("Illegal boolean value %lu\n", val); \
918 #define QLA_TPG_ATTR(_name, _mode) \
919 TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode);
922 * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls
924 DEF_QLA_TPG_ATTR_BOOL(generate_node_acls
);
925 DEF_QLA_TPG_ATTRIB(generate_node_acls
);
926 QLA_TPG_ATTR(generate_node_acls
, S_IRUGO
| S_IWUSR
);
929 Define tcm_qla2xxx_attrib_s_cache_dynamic_acls
931 DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls
);
932 DEF_QLA_TPG_ATTRIB(cache_dynamic_acls
);
933 QLA_TPG_ATTR(cache_dynamic_acls
, S_IRUGO
| S_IWUSR
);
936 * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect
938 DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect
);
939 DEF_QLA_TPG_ATTRIB(demo_mode_write_protect
);
940 QLA_TPG_ATTR(demo_mode_write_protect
, S_IRUGO
| S_IWUSR
);
943 * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect
945 DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect
);
946 DEF_QLA_TPG_ATTRIB(prod_mode_write_protect
);
947 QLA_TPG_ATTR(prod_mode_write_protect
, S_IRUGO
| S_IWUSR
);
949 static struct configfs_attribute
*tcm_qla2xxx_tpg_attrib_attrs
[] = {
950 &tcm_qla2xxx_tpg_attrib_generate_node_acls
.attr
,
951 &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls
.attr
,
952 &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect
.attr
,
953 &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect
.attr
,
957 /* End items for tcm_qla2xxx_tpg_attrib_cit */
959 static ssize_t
tcm_qla2xxx_tpg_show_enable(
960 struct se_portal_group
*se_tpg
,
963 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
964 struct tcm_qla2xxx_tpg
, se_tpg
);
966 return snprintf(page
, PAGE_SIZE
, "%d\n",
967 atomic_read(&tpg
->lport_tpg_enabled
));
970 static ssize_t
tcm_qla2xxx_tpg_store_enable(
971 struct se_portal_group
*se_tpg
,
975 struct se_wwn
*se_wwn
= se_tpg
->se_tpg_wwn
;
976 struct tcm_qla2xxx_lport
*lport
= container_of(se_wwn
,
977 struct tcm_qla2xxx_lport
, lport_wwn
);
978 struct scsi_qla_host
*vha
= lport
->qla_vha
;
979 struct qla_hw_data
*ha
= vha
->hw
;
980 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
981 struct tcm_qla2xxx_tpg
, se_tpg
);
985 rc
= kstrtoul(page
, 0, &op
);
987 pr_err("kstrtoul() returned %d\n", rc
);
990 if ((op
!= 1) && (op
!= 0)) {
991 pr_err("Illegal value for tpg_enable: %lu\n", op
);
996 atomic_set(&tpg
->lport_tpg_enabled
, 1);
999 if (!ha
->tgt
.qla_tgt
) {
1000 pr_err("truct qla_hw_data *ha->tgt.qla_tgt is NULL\n");
1003 atomic_set(&tpg
->lport_tpg_enabled
, 0);
1004 qlt_stop_phase1(ha
->tgt
.qla_tgt
);
1010 TF_TPG_BASE_ATTR(tcm_qla2xxx
, enable
, S_IRUGO
| S_IWUSR
);
1012 static struct configfs_attribute
*tcm_qla2xxx_tpg_attrs
[] = {
1013 &tcm_qla2xxx_tpg_enable
.attr
,
1017 static struct se_portal_group
*tcm_qla2xxx_make_tpg(
1019 struct config_group
*group
,
1022 struct tcm_qla2xxx_lport
*lport
= container_of(wwn
,
1023 struct tcm_qla2xxx_lport
, lport_wwn
);
1024 struct tcm_qla2xxx_tpg
*tpg
;
1028 if (strstr(name
, "tpgt_") != name
)
1029 return ERR_PTR(-EINVAL
);
1030 if (kstrtoul(name
+ 5, 10, &tpgt
) || tpgt
> USHRT_MAX
)
1031 return ERR_PTR(-EINVAL
);
1033 if (!lport
->qla_npiv_vp
&& (tpgt
!= 1)) {
1034 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1035 return ERR_PTR(-ENOSYS
);
1038 tpg
= kzalloc(sizeof(struct tcm_qla2xxx_tpg
), GFP_KERNEL
);
1040 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1041 return ERR_PTR(-ENOMEM
);
1044 tpg
->lport_tpgt
= tpgt
;
1046 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
1049 QLA_TPG_ATTRIB(tpg
)->generate_node_acls
= 1;
1050 QLA_TPG_ATTRIB(tpg
)->demo_mode_write_protect
= 1;
1051 QLA_TPG_ATTRIB(tpg
)->cache_dynamic_acls
= 1;
1053 ret
= core_tpg_register(&tcm_qla2xxx_fabric_configfs
->tf_ops
, wwn
,
1054 &tpg
->se_tpg
, tpg
, TRANSPORT_TPG_TYPE_NORMAL
);
1060 * Setup local TPG=1 pointer for non NPIV mode.
1062 if (lport
->qla_npiv_vp
== NULL
)
1065 return &tpg
->se_tpg
;
1068 static void tcm_qla2xxx_drop_tpg(struct se_portal_group
*se_tpg
)
1070 struct tcm_qla2xxx_tpg
*tpg
= container_of(se_tpg
,
1071 struct tcm_qla2xxx_tpg
, se_tpg
);
1072 struct tcm_qla2xxx_lport
*lport
= tpg
->lport
;
1073 struct scsi_qla_host
*vha
= lport
->qla_vha
;
1074 struct qla_hw_data
*ha
= vha
->hw
;
1076 * Call into qla2x_target.c LLD logic to shutdown the active
1077 * FC Nexuses and disable target mode operation for this qla_hw_data
1079 if (ha
->tgt
.qla_tgt
&& !ha
->tgt
.qla_tgt
->tgt_stop
)
1080 qlt_stop_phase1(ha
->tgt
.qla_tgt
);
1082 core_tpg_deregister(se_tpg
);
1084 * Clear local TPG=1 pointer for non NPIV mode.
1086 if (lport
->qla_npiv_vp
== NULL
)
1087 lport
->tpg_1
= NULL
;
1092 static struct se_portal_group
*tcm_qla2xxx_npiv_make_tpg(
1094 struct config_group
*group
,
1097 struct tcm_qla2xxx_lport
*lport
= container_of(wwn
,
1098 struct tcm_qla2xxx_lport
, lport_wwn
);
1099 struct tcm_qla2xxx_tpg
*tpg
;
1103 if (strstr(name
, "tpgt_") != name
)
1104 return ERR_PTR(-EINVAL
);
1105 if (kstrtoul(name
+ 5, 10, &tpgt
) || tpgt
> USHRT_MAX
)
1106 return ERR_PTR(-EINVAL
);
1108 tpg
= kzalloc(sizeof(struct tcm_qla2xxx_tpg
), GFP_KERNEL
);
1110 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1111 return ERR_PTR(-ENOMEM
);
1114 tpg
->lport_tpgt
= tpgt
;
1116 ret
= core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs
->tf_ops
, wwn
,
1117 &tpg
->se_tpg
, tpg
, TRANSPORT_TPG_TYPE_NORMAL
);
1122 return &tpg
->se_tpg
;
1126 * Expected to be called with struct qla_hw_data->hardware_lock held
1128 static struct qla_tgt_sess
*tcm_qla2xxx_find_sess_by_s_id(
1129 scsi_qla_host_t
*vha
,
1130 const uint8_t *s_id
)
1132 struct qla_hw_data
*ha
= vha
->hw
;
1133 struct tcm_qla2xxx_lport
*lport
;
1134 struct se_node_acl
*se_nacl
;
1135 struct tcm_qla2xxx_nacl
*nacl
;
1138 lport
= ha
->tgt
.target_lport_ptr
;
1140 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1145 key
= (((unsigned long)s_id
[0] << 16) |
1146 ((unsigned long)s_id
[1] << 8) |
1147 (unsigned long)s_id
[2]);
1148 pr_debug("find_sess_by_s_id: 0x%06x\n", key
);
1150 se_nacl
= btree_lookup32(&lport
->lport_fcport_map
, key
);
1152 pr_debug("Unable to locate s_id: 0x%06x\n", key
);
1155 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1156 se_nacl
, se_nacl
->initiatorname
);
1158 nacl
= container_of(se_nacl
, struct tcm_qla2xxx_nacl
, se_node_acl
);
1159 if (!nacl
->qla_tgt_sess
) {
1160 pr_err("Unable to locate struct qla_tgt_sess\n");
1164 return nacl
->qla_tgt_sess
;
1168 * Expected to be called with struct qla_hw_data->hardware_lock held
1170 static void tcm_qla2xxx_set_sess_by_s_id(
1171 struct tcm_qla2xxx_lport
*lport
,
1172 struct se_node_acl
*new_se_nacl
,
1173 struct tcm_qla2xxx_nacl
*nacl
,
1174 struct se_session
*se_sess
,
1175 struct qla_tgt_sess
*qla_tgt_sess
,
1182 key
= (((unsigned long)s_id
[0] << 16) |
1183 ((unsigned long)s_id
[1] << 8) |
1184 (unsigned long)s_id
[2]);
1185 pr_debug("set_sess_by_s_id: %06x\n", key
);
1187 slot
= btree_lookup32(&lport
->lport_fcport_map
, key
);
1190 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1191 nacl
->nport_id
= key
;
1192 rc
= btree_insert32(&lport
->lport_fcport_map
, key
,
1193 new_se_nacl
, GFP_ATOMIC
);
1195 printk(KERN_ERR
"Unable to insert s_id into fcport_map: %06x\n",
1198 pr_debug("Wiping nonexisting fc_port entry\n");
1201 qla_tgt_sess
->se_sess
= se_sess
;
1202 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1206 if (nacl
->qla_tgt_sess
) {
1207 if (new_se_nacl
== NULL
) {
1208 pr_debug("Clearing existing nacl->qla_tgt_sess and fc_port entry\n");
1209 btree_remove32(&lport
->lport_fcport_map
, key
);
1210 nacl
->qla_tgt_sess
= NULL
;
1213 pr_debug("Replacing existing nacl->qla_tgt_sess and fc_port entry\n");
1214 btree_update32(&lport
->lport_fcport_map
, key
, new_se_nacl
);
1215 qla_tgt_sess
->se_sess
= se_sess
;
1216 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1220 if (new_se_nacl
== NULL
) {
1221 pr_debug("Clearing existing fc_port entry\n");
1222 btree_remove32(&lport
->lport_fcport_map
, key
);
1226 pr_debug("Replacing existing fc_port entry w/o active nacl->qla_tgt_sess\n");
1227 btree_update32(&lport
->lport_fcport_map
, key
, new_se_nacl
);
1228 qla_tgt_sess
->se_sess
= se_sess
;
1229 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1231 pr_debug("Setup nacl->qla_tgt_sess %p by s_id for se_nacl: %p, initiatorname: %s\n",
1232 nacl
->qla_tgt_sess
, new_se_nacl
, new_se_nacl
->initiatorname
);
1236 * Expected to be called with struct qla_hw_data->hardware_lock held
1238 static struct qla_tgt_sess
*tcm_qla2xxx_find_sess_by_loop_id(
1239 scsi_qla_host_t
*vha
,
1240 const uint16_t loop_id
)
1242 struct qla_hw_data
*ha
= vha
->hw
;
1243 struct tcm_qla2xxx_lport
*lport
;
1244 struct se_node_acl
*se_nacl
;
1245 struct tcm_qla2xxx_nacl
*nacl
;
1246 struct tcm_qla2xxx_fc_loopid
*fc_loopid
;
1248 lport
= ha
->tgt
.target_lport_ptr
;
1250 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1255 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id
);
1257 fc_loopid
= lport
->lport_loopid_map
+ loop_id
;
1258 se_nacl
= fc_loopid
->se_nacl
;
1260 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1265 nacl
= container_of(se_nacl
, struct tcm_qla2xxx_nacl
, se_node_acl
);
1267 if (!nacl
->qla_tgt_sess
) {
1268 pr_err("Unable to locate struct qla_tgt_sess\n");
1272 return nacl
->qla_tgt_sess
;
1276 * Expected to be called with struct qla_hw_data->hardware_lock held
1278 static void tcm_qla2xxx_set_sess_by_loop_id(
1279 struct tcm_qla2xxx_lport
*lport
,
1280 struct se_node_acl
*new_se_nacl
,
1281 struct tcm_qla2xxx_nacl
*nacl
,
1282 struct se_session
*se_sess
,
1283 struct qla_tgt_sess
*qla_tgt_sess
,
1286 struct se_node_acl
*saved_nacl
;
1287 struct tcm_qla2xxx_fc_loopid
*fc_loopid
;
1289 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id
);
1291 fc_loopid
= &((struct tcm_qla2xxx_fc_loopid
*)
1292 lport
->lport_loopid_map
)[loop_id
];
1294 saved_nacl
= fc_loopid
->se_nacl
;
1296 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1297 fc_loopid
->se_nacl
= new_se_nacl
;
1298 if (qla_tgt_sess
->se_sess
!= se_sess
)
1299 qla_tgt_sess
->se_sess
= se_sess
;
1300 if (nacl
->qla_tgt_sess
!= qla_tgt_sess
)
1301 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1305 if (nacl
->qla_tgt_sess
) {
1306 if (new_se_nacl
== NULL
) {
1307 pr_debug("Clearing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
1308 fc_loopid
->se_nacl
= NULL
;
1309 nacl
->qla_tgt_sess
= NULL
;
1313 pr_debug("Replacing existing nacl->qla_tgt_sess and fc_loopid->se_nacl\n");
1314 fc_loopid
->se_nacl
= new_se_nacl
;
1315 if (qla_tgt_sess
->se_sess
!= se_sess
)
1316 qla_tgt_sess
->se_sess
= se_sess
;
1317 if (nacl
->qla_tgt_sess
!= qla_tgt_sess
)
1318 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1322 if (new_se_nacl
== NULL
) {
1323 pr_debug("Clearing fc_loopid->se_nacl\n");
1324 fc_loopid
->se_nacl
= NULL
;
1328 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->qla_tgt_sess\n");
1329 fc_loopid
->se_nacl
= new_se_nacl
;
1330 if (qla_tgt_sess
->se_sess
!= se_sess
)
1331 qla_tgt_sess
->se_sess
= se_sess
;
1332 if (nacl
->qla_tgt_sess
!= qla_tgt_sess
)
1333 nacl
->qla_tgt_sess
= qla_tgt_sess
;
1335 pr_debug("Setup nacl->qla_tgt_sess %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1336 nacl
->qla_tgt_sess
, new_se_nacl
, new_se_nacl
->initiatorname
);
1340 * Should always be called with qla_hw_data->hardware_lock held.
1342 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport
*lport
,
1343 struct tcm_qla2xxx_nacl
*nacl
, struct qla_tgt_sess
*sess
)
1345 struct se_session
*se_sess
= sess
->se_sess
;
1346 unsigned char be_sid
[3];
1348 be_sid
[0] = sess
->s_id
.b
.domain
;
1349 be_sid
[1] = sess
->s_id
.b
.area
;
1350 be_sid
[2] = sess
->s_id
.b
.al_pa
;
1352 tcm_qla2xxx_set_sess_by_s_id(lport
, NULL
, nacl
, se_sess
,
1354 tcm_qla2xxx_set_sess_by_loop_id(lport
, NULL
, nacl
, se_sess
,
1355 sess
, sess
->loop_id
);
1358 static void tcm_qla2xxx_free_session(struct qla_tgt_sess
*sess
)
1360 struct qla_tgt
*tgt
= sess
->tgt
;
1361 struct qla_hw_data
*ha
= tgt
->ha
;
1362 struct se_session
*se_sess
;
1363 struct se_node_acl
*se_nacl
;
1364 struct tcm_qla2xxx_lport
*lport
;
1365 struct tcm_qla2xxx_nacl
*nacl
;
1367 BUG_ON(in_interrupt());
1369 se_sess
= sess
->se_sess
;
1371 pr_err("struct qla_tgt_sess->se_sess is NULL\n");
1375 se_nacl
= se_sess
->se_node_acl
;
1376 nacl
= container_of(se_nacl
, struct tcm_qla2xxx_nacl
, se_node_acl
);
1378 lport
= ha
->tgt
.target_lport_ptr
;
1380 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1384 target_wait_for_sess_cmds(se_sess
, 0);
1386 transport_deregister_session_configfs(sess
->se_sess
);
1387 transport_deregister_session(sess
->se_sess
);
1391 * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
1392 * to locate struct se_node_acl
1394 static int tcm_qla2xxx_check_initiator_node_acl(
1395 scsi_qla_host_t
*vha
,
1396 unsigned char *fc_wwpn
,
1401 struct qla_hw_data
*ha
= vha
->hw
;
1402 struct tcm_qla2xxx_lport
*lport
;
1403 struct tcm_qla2xxx_tpg
*tpg
;
1404 struct tcm_qla2xxx_nacl
*nacl
;
1405 struct se_portal_group
*se_tpg
;
1406 struct se_node_acl
*se_nacl
;
1407 struct se_session
*se_sess
;
1408 struct qla_tgt_sess
*sess
= qla_tgt_sess
;
1409 unsigned char port_name
[36];
1410 unsigned long flags
;
1412 lport
= ha
->tgt
.target_lport_ptr
;
1414 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1419 * Locate the TPG=1 reference..
1423 pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
1426 se_tpg
= &tpg
->se_tpg
;
1428 se_sess
= transport_init_session();
1429 if (IS_ERR(se_sess
)) {
1430 pr_err("Unable to initialize struct se_session\n");
1431 return PTR_ERR(se_sess
);
1434 * Format the FCP Initiator port_name into colon seperated values to
1435 * match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
1437 memset(&port_name
, 0, 36);
1438 snprintf(port_name
, 36, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
1439 fc_wwpn
[0], fc_wwpn
[1], fc_wwpn
[2], fc_wwpn
[3], fc_wwpn
[4],
1440 fc_wwpn
[5], fc_wwpn
[6], fc_wwpn
[7]);
1442 * Locate our struct se_node_acl either from an explict NodeACL created
1443 * via ConfigFS, or via running in TPG demo mode.
1445 se_sess
->se_node_acl
= core_tpg_check_initiator_node_acl(se_tpg
,
1447 if (!se_sess
->se_node_acl
) {
1448 transport_free_session(se_sess
);
1451 se_nacl
= se_sess
->se_node_acl
;
1452 nacl
= container_of(se_nacl
, struct tcm_qla2xxx_nacl
, se_node_acl
);
1454 * And now setup the new se_nacl and session pointers into our HW lport
1455 * mappings for fabric S_ID and LOOP_ID.
1457 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1458 tcm_qla2xxx_set_sess_by_s_id(lport
, se_nacl
, nacl
, se_sess
,
1459 qla_tgt_sess
, s_id
);
1460 tcm_qla2xxx_set_sess_by_loop_id(lport
, se_nacl
, nacl
, se_sess
,
1461 qla_tgt_sess
, loop_id
);
1462 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1464 * Finally register the new FC Nexus with TCM
1466 __transport_register_session(se_nacl
->se_tpg
, se_nacl
, se_sess
, sess
);
1472 * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
1474 static struct qla_tgt_func_tmpl tcm_qla2xxx_template
= {
1475 .handle_cmd
= tcm_qla2xxx_handle_cmd
,
1476 .handle_data
= tcm_qla2xxx_handle_data
,
1477 .handle_tmr
= tcm_qla2xxx_handle_tmr
,
1478 .free_cmd
= tcm_qla2xxx_free_cmd
,
1479 .free_mcmd
= tcm_qla2xxx_free_mcmd
,
1480 .free_session
= tcm_qla2xxx_free_session
,
1481 .check_initiator_node_acl
= tcm_qla2xxx_check_initiator_node_acl
,
1482 .find_sess_by_s_id
= tcm_qla2xxx_find_sess_by_s_id
,
1483 .find_sess_by_loop_id
= tcm_qla2xxx_find_sess_by_loop_id
,
1484 .clear_nacl_from_fcport_map
= tcm_qla2xxx_clear_nacl_from_fcport_map
,
1485 .put_sess
= tcm_qla2xxx_put_sess
,
1486 .shutdown_sess
= tcm_qla2xxx_shutdown_sess
,
1489 static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport
*lport
)
1493 rc
= btree_init32(&lport
->lport_fcport_map
);
1495 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1499 lport
->lport_loopid_map
= vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid
) *
1501 if (!lport
->lport_loopid_map
) {
1502 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1503 sizeof(struct tcm_qla2xxx_fc_loopid
) * 65536);
1504 btree_destroy32(&lport
->lport_fcport_map
);
1507 memset(lport
->lport_loopid_map
, 0, sizeof(struct tcm_qla2xxx_fc_loopid
)
1509 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1510 sizeof(struct tcm_qla2xxx_fc_loopid
) * 65536);
1514 static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host
*vha
)
1516 struct qla_hw_data
*ha
= vha
->hw
;
1517 struct tcm_qla2xxx_lport
*lport
;
1519 * Setup local pointer to vha, NPIV VP pointer (if present) and
1520 * vha->tcm_lport pointer
1522 lport
= (struct tcm_qla2xxx_lport
*)ha
->tgt
.target_lport_ptr
;
1523 lport
->qla_vha
= vha
;
1528 static struct se_wwn
*tcm_qla2xxx_make_lport(
1529 struct target_fabric_configfs
*tf
,
1530 struct config_group
*group
,
1533 struct tcm_qla2xxx_lport
*lport
;
1537 if (tcm_qla2xxx_parse_wwn(name
, &wwpn
, 1) < 0)
1538 return ERR_PTR(-EINVAL
);
1540 lport
= kzalloc(sizeof(struct tcm_qla2xxx_lport
), GFP_KERNEL
);
1542 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1543 return ERR_PTR(-ENOMEM
);
1545 lport
->lport_wwpn
= wwpn
;
1546 tcm_qla2xxx_format_wwn(&lport
->lport_name
[0], TCM_QLA2XXX_NAMELEN
,
1549 ret
= tcm_qla2xxx_init_lport(lport
);
1553 ret
= qlt_lport_register(&tcm_qla2xxx_template
, wwpn
,
1554 tcm_qla2xxx_lport_register_cb
, lport
);
1558 return &lport
->lport_wwn
;
1560 vfree(lport
->lport_loopid_map
);
1561 btree_destroy32(&lport
->lport_fcport_map
);
1564 return ERR_PTR(ret
);
1567 static void tcm_qla2xxx_drop_lport(struct se_wwn
*wwn
)
1569 struct tcm_qla2xxx_lport
*lport
= container_of(wwn
,
1570 struct tcm_qla2xxx_lport
, lport_wwn
);
1571 struct scsi_qla_host
*vha
= lport
->qla_vha
;
1572 struct qla_hw_data
*ha
= vha
->hw
;
1573 struct se_node_acl
*node
;
1577 * Call into qla2x_target.c LLD logic to complete the
1578 * shutdown of struct qla_tgt after the call to
1579 * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
1581 if (ha
->tgt
.qla_tgt
&& !ha
->tgt
.qla_tgt
->tgt_stopped
)
1582 qlt_stop_phase2(ha
->tgt
.qla_tgt
);
1584 qlt_lport_deregister(vha
);
1586 vfree(lport
->lport_loopid_map
);
1587 btree_for_each_safe32(&lport
->lport_fcport_map
, key
, node
)
1588 btree_remove32(&lport
->lport_fcport_map
, key
);
1589 btree_destroy32(&lport
->lport_fcport_map
);
1593 static struct se_wwn
*tcm_qla2xxx_npiv_make_lport(
1594 struct target_fabric_configfs
*tf
,
1595 struct config_group
*group
,
1598 struct tcm_qla2xxx_lport
*lport
;
1599 u64 npiv_wwpn
, npiv_wwnn
;
1602 if (tcm_qla2xxx_npiv_parse_wwn(name
, strlen(name
)+1,
1603 &npiv_wwpn
, &npiv_wwnn
) < 0)
1604 return ERR_PTR(-EINVAL
);
1606 lport
= kzalloc(sizeof(struct tcm_qla2xxx_lport
), GFP_KERNEL
);
1608 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1609 return ERR_PTR(-ENOMEM
);
1611 lport
->lport_npiv_wwpn
= npiv_wwpn
;
1612 lport
->lport_npiv_wwnn
= npiv_wwnn
;
1613 tcm_qla2xxx_npiv_format_wwn(&lport
->lport_npiv_name
[0],
1614 TCM_QLA2XXX_NAMELEN
, npiv_wwpn
, npiv_wwnn
);
1616 /* FIXME: tcm_qla2xxx_npiv_make_lport */
1621 return &lport
->lport_wwn
;
1624 return ERR_PTR(ret
);
1627 static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn
*wwn
)
1629 struct tcm_qla2xxx_lport
*lport
= container_of(wwn
,
1630 struct tcm_qla2xxx_lport
, lport_wwn
);
1631 struct scsi_qla_host
*vha
= lport
->qla_vha
;
1632 struct Scsi_Host
*sh
= vha
->host
;
1634 * Notify libfc that we want to release the lport->npiv_vport
1636 fc_vport_terminate(lport
->npiv_vport
);
1643 static ssize_t
tcm_qla2xxx_wwn_show_attr_version(
1644 struct target_fabric_configfs
*tf
,
1647 return sprintf(page
,
1648 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on "
1649 UTS_RELEASE
"\n", TCM_QLA2XXX_VERSION
, utsname()->sysname
,
1650 utsname()->machine
);
1653 TF_WWN_ATTR_RO(tcm_qla2xxx
, version
);
1655 static struct configfs_attribute
*tcm_qla2xxx_wwn_attrs
[] = {
1656 &tcm_qla2xxx_wwn_version
.attr
,
1660 static struct target_core_fabric_ops tcm_qla2xxx_ops
= {
1661 .get_fabric_name
= tcm_qla2xxx_get_fabric_name
,
1662 .get_fabric_proto_ident
= tcm_qla2xxx_get_fabric_proto_ident
,
1663 .tpg_get_wwn
= tcm_qla2xxx_get_fabric_wwn
,
1664 .tpg_get_tag
= tcm_qla2xxx_get_tag
,
1665 .tpg_get_default_depth
= tcm_qla2xxx_get_default_depth
,
1666 .tpg_get_pr_transport_id
= tcm_qla2xxx_get_pr_transport_id
,
1667 .tpg_get_pr_transport_id_len
= tcm_qla2xxx_get_pr_transport_id_len
,
1668 .tpg_parse_pr_out_transport_id
= tcm_qla2xxx_parse_pr_out_transport_id
,
1669 .tpg_check_demo_mode
= tcm_qla2xxx_check_demo_mode
,
1670 .tpg_check_demo_mode_cache
= tcm_qla2xxx_check_demo_mode_cache
,
1671 .tpg_check_demo_mode_write_protect
=
1672 tcm_qla2xxx_check_demo_write_protect
,
1673 .tpg_check_prod_mode_write_protect
=
1674 tcm_qla2xxx_check_prod_write_protect
,
1675 .tpg_check_demo_mode_login_only
= tcm_qla2xxx_check_true
,
1676 .tpg_alloc_fabric_acl
= tcm_qla2xxx_alloc_fabric_acl
,
1677 .tpg_release_fabric_acl
= tcm_qla2xxx_release_fabric_acl
,
1678 .tpg_get_inst_index
= tcm_qla2xxx_tpg_get_inst_index
,
1679 .check_stop_free
= tcm_qla2xxx_check_stop_free
,
1680 .release_cmd
= tcm_qla2xxx_release_cmd
,
1681 .put_session
= tcm_qla2xxx_put_session
,
1682 .shutdown_session
= tcm_qla2xxx_shutdown_session
,
1683 .close_session
= tcm_qla2xxx_close_session
,
1684 .sess_get_index
= tcm_qla2xxx_sess_get_index
,
1685 .sess_get_initiator_sid
= NULL
,
1686 .write_pending
= tcm_qla2xxx_write_pending
,
1687 .write_pending_status
= tcm_qla2xxx_write_pending_status
,
1688 .set_default_node_attributes
= tcm_qla2xxx_set_default_node_attrs
,
1689 .get_task_tag
= tcm_qla2xxx_get_task_tag
,
1690 .get_cmd_state
= tcm_qla2xxx_get_cmd_state
,
1691 .queue_data_in
= tcm_qla2xxx_queue_data_in
,
1692 .queue_status
= tcm_qla2xxx_queue_status
,
1693 .queue_tm_rsp
= tcm_qla2xxx_queue_tm_rsp
,
1694 .get_fabric_sense_len
= tcm_qla2xxx_get_fabric_sense_len
,
1695 .set_fabric_sense_len
= tcm_qla2xxx_set_fabric_sense_len
,
1697 * Setup function pointers for generic logic in
1698 * target_core_fabric_configfs.c
1700 .fabric_make_wwn
= tcm_qla2xxx_make_lport
,
1701 .fabric_drop_wwn
= tcm_qla2xxx_drop_lport
,
1702 .fabric_make_tpg
= tcm_qla2xxx_make_tpg
,
1703 .fabric_drop_tpg
= tcm_qla2xxx_drop_tpg
,
1704 .fabric_post_link
= NULL
,
1705 .fabric_pre_unlink
= NULL
,
1706 .fabric_make_np
= NULL
,
1707 .fabric_drop_np
= NULL
,
1708 .fabric_make_nodeacl
= tcm_qla2xxx_make_nodeacl
,
1709 .fabric_drop_nodeacl
= tcm_qla2xxx_drop_nodeacl
,
1712 static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops
= {
1713 .get_fabric_name
= tcm_qla2xxx_npiv_get_fabric_name
,
1714 .get_fabric_proto_ident
= tcm_qla2xxx_get_fabric_proto_ident
,
1715 .tpg_get_wwn
= tcm_qla2xxx_npiv_get_fabric_wwn
,
1716 .tpg_get_tag
= tcm_qla2xxx_get_tag
,
1717 .tpg_get_default_depth
= tcm_qla2xxx_get_default_depth
,
1718 .tpg_get_pr_transport_id
= tcm_qla2xxx_get_pr_transport_id
,
1719 .tpg_get_pr_transport_id_len
= tcm_qla2xxx_get_pr_transport_id_len
,
1720 .tpg_parse_pr_out_transport_id
= tcm_qla2xxx_parse_pr_out_transport_id
,
1721 .tpg_check_demo_mode
= tcm_qla2xxx_check_false
,
1722 .tpg_check_demo_mode_cache
= tcm_qla2xxx_check_true
,
1723 .tpg_check_demo_mode_write_protect
= tcm_qla2xxx_check_true
,
1724 .tpg_check_prod_mode_write_protect
= tcm_qla2xxx_check_false
,
1725 .tpg_check_demo_mode_login_only
= tcm_qla2xxx_check_true
,
1726 .tpg_alloc_fabric_acl
= tcm_qla2xxx_alloc_fabric_acl
,
1727 .tpg_release_fabric_acl
= tcm_qla2xxx_release_fabric_acl
,
1728 .tpg_get_inst_index
= tcm_qla2xxx_tpg_get_inst_index
,
1729 .release_cmd
= tcm_qla2xxx_release_cmd
,
1730 .put_session
= tcm_qla2xxx_put_session
,
1731 .shutdown_session
= tcm_qla2xxx_shutdown_session
,
1732 .close_session
= tcm_qla2xxx_close_session
,
1733 .sess_get_index
= tcm_qla2xxx_sess_get_index
,
1734 .sess_get_initiator_sid
= NULL
,
1735 .write_pending
= tcm_qla2xxx_write_pending
,
1736 .write_pending_status
= tcm_qla2xxx_write_pending_status
,
1737 .set_default_node_attributes
= tcm_qla2xxx_set_default_node_attrs
,
1738 .get_task_tag
= tcm_qla2xxx_get_task_tag
,
1739 .get_cmd_state
= tcm_qla2xxx_get_cmd_state
,
1740 .queue_data_in
= tcm_qla2xxx_queue_data_in
,
1741 .queue_status
= tcm_qla2xxx_queue_status
,
1742 .queue_tm_rsp
= tcm_qla2xxx_queue_tm_rsp
,
1743 .get_fabric_sense_len
= tcm_qla2xxx_get_fabric_sense_len
,
1744 .set_fabric_sense_len
= tcm_qla2xxx_set_fabric_sense_len
,
1746 * Setup function pointers for generic logic in
1747 * target_core_fabric_configfs.c
1749 .fabric_make_wwn
= tcm_qla2xxx_npiv_make_lport
,
1750 .fabric_drop_wwn
= tcm_qla2xxx_npiv_drop_lport
,
1751 .fabric_make_tpg
= tcm_qla2xxx_npiv_make_tpg
,
1752 .fabric_drop_tpg
= tcm_qla2xxx_drop_tpg
,
1753 .fabric_post_link
= NULL
,
1754 .fabric_pre_unlink
= NULL
,
1755 .fabric_make_np
= NULL
,
1756 .fabric_drop_np
= NULL
,
1757 .fabric_make_nodeacl
= tcm_qla2xxx_make_nodeacl
,
1758 .fabric_drop_nodeacl
= tcm_qla2xxx_drop_nodeacl
,
1761 static int tcm_qla2xxx_register_configfs(void)
1763 struct target_fabric_configfs
*fabric
, *npiv_fabric
;
1766 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on "
1767 UTS_RELEASE
"\n", TCM_QLA2XXX_VERSION
, utsname()->sysname
,
1768 utsname()->machine
);
1770 * Register the top level struct config_item_type with TCM core
1772 fabric
= target_fabric_configfs_init(THIS_MODULE
, "qla2xxx");
1773 if (IS_ERR(fabric
)) {
1774 pr_err("target_fabric_configfs_init() failed\n");
1775 return PTR_ERR(fabric
);
1778 * Setup fabric->tf_ops from our local tcm_qla2xxx_ops
1780 fabric
->tf_ops
= tcm_qla2xxx_ops
;
1782 * Setup default attribute lists for various fabric->tf_cit_tmpl
1784 TF_CIT_TMPL(fabric
)->tfc_wwn_cit
.ct_attrs
= tcm_qla2xxx_wwn_attrs
;
1785 TF_CIT_TMPL(fabric
)->tfc_tpg_base_cit
.ct_attrs
= tcm_qla2xxx_tpg_attrs
;
1786 TF_CIT_TMPL(fabric
)->tfc_tpg_attrib_cit
.ct_attrs
=
1787 tcm_qla2xxx_tpg_attrib_attrs
;
1788 TF_CIT_TMPL(fabric
)->tfc_tpg_param_cit
.ct_attrs
= NULL
;
1789 TF_CIT_TMPL(fabric
)->tfc_tpg_np_base_cit
.ct_attrs
= NULL
;
1790 TF_CIT_TMPL(fabric
)->tfc_tpg_nacl_base_cit
.ct_attrs
= NULL
;
1791 TF_CIT_TMPL(fabric
)->tfc_tpg_nacl_attrib_cit
.ct_attrs
= NULL
;
1792 TF_CIT_TMPL(fabric
)->tfc_tpg_nacl_auth_cit
.ct_attrs
= NULL
;
1793 TF_CIT_TMPL(fabric
)->tfc_tpg_nacl_param_cit
.ct_attrs
= NULL
;
1795 * Register the fabric for use within TCM
1797 ret
= target_fabric_configfs_register(fabric
);
1799 pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
1803 * Setup our local pointer to *fabric
1805 tcm_qla2xxx_fabric_configfs
= fabric
;
1806 pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_fabric_configfs\n");
1809 * Register the top level struct config_item_type for NPIV with TCM core
1811 npiv_fabric
= target_fabric_configfs_init(THIS_MODULE
, "qla2xxx_npiv");
1812 if (IS_ERR(npiv_fabric
)) {
1813 pr_err("target_fabric_configfs_init() failed\n");
1814 ret
= PTR_ERR(npiv_fabric
);
1818 * Setup fabric->tf_ops from our local tcm_qla2xxx_npiv_ops
1820 npiv_fabric
->tf_ops
= tcm_qla2xxx_npiv_ops
;
1822 * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl
1824 TF_CIT_TMPL(npiv_fabric
)->tfc_wwn_cit
.ct_attrs
= tcm_qla2xxx_wwn_attrs
;
1825 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_base_cit
.ct_attrs
= NULL
;
1826 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_attrib_cit
.ct_attrs
= NULL
;
1827 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_param_cit
.ct_attrs
= NULL
;
1828 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_np_base_cit
.ct_attrs
= NULL
;
1829 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_nacl_base_cit
.ct_attrs
= NULL
;
1830 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_nacl_attrib_cit
.ct_attrs
= NULL
;
1831 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_nacl_auth_cit
.ct_attrs
= NULL
;
1832 TF_CIT_TMPL(npiv_fabric
)->tfc_tpg_nacl_param_cit
.ct_attrs
= NULL
;
1834 * Register the npiv_fabric for use within TCM
1836 ret
= target_fabric_configfs_register(npiv_fabric
);
1838 pr_err("target_fabric_configfs_register() failed for TCM_QLA2XXX\n");
1842 * Setup our local pointer to *npiv_fabric
1844 tcm_qla2xxx_npiv_fabric_configfs
= npiv_fabric
;
1845 pr_debug("TCM_QLA2XXX[0] - Set fabric -> tcm_qla2xxx_npiv_fabric_configfs\n");
1847 tcm_qla2xxx_free_wq
= alloc_workqueue("tcm_qla2xxx_free",
1849 if (!tcm_qla2xxx_free_wq
) {
1851 goto out_fabric_npiv
;
1854 tcm_qla2xxx_cmd_wq
= alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
1855 if (!tcm_qla2xxx_cmd_wq
) {
1863 destroy_workqueue(tcm_qla2xxx_free_wq
);
1865 target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs
);
1867 target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs
);
1871 static void tcm_qla2xxx_deregister_configfs(void)
1873 destroy_workqueue(tcm_qla2xxx_cmd_wq
);
1874 destroy_workqueue(tcm_qla2xxx_free_wq
);
1876 target_fabric_configfs_deregister(tcm_qla2xxx_fabric_configfs
);
1877 tcm_qla2xxx_fabric_configfs
= NULL
;
1878 pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_fabric_configfs\n");
1880 target_fabric_configfs_deregister(tcm_qla2xxx_npiv_fabric_configfs
);
1881 tcm_qla2xxx_npiv_fabric_configfs
= NULL
;
1882 pr_debug("TCM_QLA2XXX[0] - Cleared tcm_qla2xxx_npiv_fabric_configfs\n");
1885 static int __init
tcm_qla2xxx_init(void)
1889 ret
= tcm_qla2xxx_register_configfs();
1896 static void __exit
tcm_qla2xxx_exit(void)
1898 tcm_qla2xxx_deregister_configfs();
1901 MODULE_DESCRIPTION("TCM QLA2XXX series NPIV enabled fabric driver");
1902 MODULE_LICENSE("GPL");
1903 module_init(tcm_qla2xxx_init
);
1904 module_exit(tcm_qla2xxx_exit
);